CN112918507A - Inclined drift automatic anti-running mine car and anti-running braking method thereof - Google Patents
Inclined drift automatic anti-running mine car and anti-running braking method thereof Download PDFInfo
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- CN112918507A CN112918507A CN202011379716.9A CN202011379716A CN112918507A CN 112918507 A CN112918507 A CN 112918507A CN 202011379716 A CN202011379716 A CN 202011379716A CN 112918507 A CN112918507 A CN 112918507A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/02—Track brakes or retarding apparatus
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Abstract
本发明公开了一种斜巷自动防跑矿车及其防跑制动方法。斜巷自动防跑矿车包括矿车本体，矿车本体能够通过车轮沿着斜巷导轨运行；矿车本体与斜巷导轨之间设置有防跑离合机构；防跑离合机构包括限速感应装置、防跑抓捕装置以及阻车器；限速感应装置能够感测到车轮速度，并在车轮速度达到预设的极限速度时，能够向防跑抓捕装置的驱动机构发出触发信号；防跑抓捕装置包括抓捕组件、驱动机构以及制动绞车，驱动机构以及制动绞车均固定安装在矿车本体上；阻车器则安装在斜巷导轨上；由此可知，本发明实现了斜巷运输车辆的主动防护，从根源上消除跑车事故的发生，改善斜巷运输的安全。
The invention discloses an automatic anti-running mine car for inclined lanes and an anti-running braking method thereof. The inclined lane automatic anti-running mine car includes a mine car body, which can run along the inclined lane guide rail through the wheels; an anti-running clutch mechanism is arranged between the mine car body and the inclined lane guide rail; the anti-running clutch mechanism includes a speed limit sensing device , anti-running and arresting device and car arrester; the speed limit sensing device can sense the wheel speed, and when the wheel speed reaches the preset limit speed, it can send a trigger signal to the driving mechanism of the anti-running and arresting device; The catching device includes a catching component, a driving mechanism and a braking winch, and the driving mechanism and the braking winch are fixedly installed on the mine car body; the blocker is installed on the inclined lane guide rail; The active protection of transport vehicles in alleys can eliminate the occurrence of sports car accidents from the root cause and improve the safety of transport in inclined alleys.
Description
Technical Field
The invention relates to an automatic anti-running mine car for an inclined roadway and an anti-running braking method thereof, and belongs to the field of underground inclined roadway transportation of coal mines.
Background
In coal mine production, mine transportation accidents happen occasionally, and inclined roadway sports cars are one of the multiple accidents and become one of five disasters threatening the safety production of coal mines. The inclined drift anti-running device is an important device for preventing the occurrence of the running accidents, and the safety and the reliability of the inclined drift anti-running device are always important to research. Although the existing anti-sliding device is more in variety, the existing anti-sliding device has various potential safety hazards in different degrees, so that the sliding accidents which are difficult to control are frequent, the transportation efficiency of rail transportation is seriously restricted, and the personal safety of underground workers is seriously influenced.
At present, almost all mine inclined drift rail transportation adopts a 'one-slope three-gear' anti-running device which can only passively prevent the occurrence of running accidents but can not completely stop the running accidents, and the safety and the reliability are not enough.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic inclined roadway anti-running mine car, which realizes the active protection of inclined roadway transport vehicles. The possible situation of car running accidents is eliminated from the source, which is an effective way for improving the inclined roadway series car transportation safety protection technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
an automatic anti-running-away mine car for an inclined roadway comprises a mine car body, wherein the mine car body can run along an inclined roadway guide rail through wheels, and an anti-running clutch mechanism is arranged between the mine car body and the inclined roadway guide rail; the anti-running clutch mechanism comprises a speed limiting sensing device, an anti-running catching device and a car arrester; wherein:
the speed-limiting sensing device can sense the speed of the wheel and can send a trigger signal to a driving mechanism of the anti-running catching device when the speed of the wheel reaches a preset limit speed;
the anti-running catching device comprises a catching component, a driving mechanism and a braking winch, wherein the driving mechanism and the braking winch are fixedly arranged on the mine car body;
the catching assembly comprises four connecting ends which are respectively a first connecting end, a second connecting end, a third connecting end and a fourth connecting end; the catching assembly is positioned and installed on the mine car body through a first connecting end, is connected with the power output end of the driving mechanism through a second connecting end, is connected with a brake steel wire rope of a brake winch through a third connecting end, and can be clutched with the car arrester through a fourth connecting end;
the car arrester is arranged on the inclined roadway guide rail;
when the mine car body normally runs along the track, the driving mechanism is in a braking state; the catching assembly and the car arrester are in a separated state; the brake winch is preset with brake force and is connected with the capture component through a brake steel wire rope;
when the mine car body runs abnormally along the inclined roadway guide rail and sends a trigger signal to the driving mechanism through the speed-limiting sensing device, the driving mechanism is started after receiving the trigger signal, and the catching assembly is pushed to rotate around the axis of the first connecting end through the power output end until the fourth connecting end falls right in front of the car arrester, and the fourth connecting end can be buckled with the car arrester; after the catching assembly is buckled with the car arrester, the braking steel wire rope connected with the catching assembly can tightly pull the mine car body under the action of the preset braking force of the braking winch, so that the mine car body is braked and stopped according to the deceleration corresponding to the preset braking force.
Preferably, the driving mechanism is a linear actuator; the speed limit sensing device comprises a rotating speed trigger and a chain wheel transmission mechanism; the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain which rounds along the driving chain wheel and the driven chain wheel; the driving chain wheel is fixed on a rotating shaft of the wheel, and the driven chain wheel is connected with the power input end of the rotating speed trigger; when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the rotating speed trigger through the chain wheel transmission mechanism, a trigger signal can be sent to the driving mechanism of the anti-running catching device through the rotating speed trigger.
Preferably, the mounting seat of the rotating speed trigger is mounted on the body of the mine car through a tensioning bolt; through adjusting the tensioning bolt, the distance of the power input end of the rotating speed trigger relative to the wheel rotating shaft can be adjusted, and therefore the chain tension degree can be adjusted.
Preferably, the driving mechanism is a hydraulic driving system, and comprises an oil tank, an oil cylinder and a hydraulic system oil path; the speed limit sensing device comprises a valve trigger and a chain wheel transmission mechanism;
the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain which rounds along the driving chain wheel and the driven chain wheel; the driving chain wheel is fixed on a rotating shaft of the wheel, and the driven chain wheel is connected with the power input end of the valve trigger;
when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the valve trigger through the chain wheel transmission mechanism, the reversing valve of the valve trigger is opened, the oil circuit of a hydraulic system of the oil cylinder is opened, at the moment, hydraulic oil in the rod cavity of the oil cylinder is decompressed and returned to the oil tank through the valve group, meanwhile, a compression spring in the rodless cavity of the oil cylinder is released under the condition of no oil pressure, a piston rod of the oil cylinder extends out to drive the capture component to act until the fourth connecting end of the capture component falls right in front of the car arrester.
Preferably, the catching assembly comprises a hollow flange shaft and a catching hook; wherein:
the outer wall of the hollow flange shaft is provided with a rotating part and a swinging arm, and the hollow flange shaft is rotatably arranged on the mine car body through the rotating part and is connected with the power output end of the linear actuator through the swinging arm;
the catching hook comprises a fixed end and a hook body; the fixed end of the catching hook is embedded in a flange of the hollow flange shaft, and the hook body can be in clutch with the car arrester under the driving of the power of the linear actuator;
one end of a brake steel wire rope is wound on the brake winch, and the other end of the brake steel wire rope penetrates through the hollow flange shaft and the stop block arranged in the capture hook in sequence and then is fixed with the stop block through a locking piece;
the first connecting end is a rotating part of the hollow flange shaft, and the second connecting end is a swing arm of the hollow flange shaft; the third connecting end is a stop block arranged in the catching hook; the fourth connecting end is a hook body.
Preferably, the inclined lane guide rails comprise two inclined lane guide rails, each inclined lane guide rail is formed by continuously laying a plurality of rails, and every two adjacent rails are connected through a lane clamping plate;
a car arrester is arranged between the road clamping plates at the corresponding positions of the two inclined lane guide rails; or the outer sides of the road clamping plates at the corresponding positions of the two inclined lane guide rails are respectively provided with a car arrester.
Another technical object of the present invention is to provide the anti-running braking method for the inclined roadway automatic anti-running mine car, which comprises the following steps:
(1) in the process that the inclined drift automatic anti-running mine car runs along the inclined drift guide rail, the running speed of the inclined drift automatic anti-running mine car is converted into corresponding rotating speed through the chain wheel transmission mechanism and is synchronously transmitted to the speed limiting trigger;
(2) when the inclined roadway automatic anti-running tramcar runs downwards along the inclined roadway guide rail and the running speed exceeds the preset limit speed, the rotating speed transmitted by the speed-limiting trigger through the chain wheel transmission mechanism reaches the triggering rotating speed of the speed-limiting trigger, so that the speed-limiting trigger sends a triggering signal towards the driving mechanism of the anti-running arresting device;
(3) the driving mechanism is started after receiving the trigger signal, and the catching assembly is pushed to rotate around the axis of the first connecting end through the power output end until the fourth connecting end falls right in front of the car arrester and can be buckled with the car arrester; after the catching assembly is buckled with the car arrester, the braking steel wire rope connected with the catching assembly can tightly pull the mine car body under the action of the preset braking force of the braking winch, so that the mine car body is braked and stopped according to the deceleration corresponding to the preset braking force.
Preferably, the driving mechanism is a linear actuator, and the speed limiting trigger is a rotating speed trigger; the catching assembly comprises a hollow flange shaft and a catching hook; in the step (3), after the linear actuator is started, the power output end of the linear actuator extends out to drive the swing arm on the hollow flange shaft, so that the hollow flange shaft rotates downwards around the shaft, the catching hook is driven by the hollow flange shaft to rotate downwards and falls in front of a car arrester at the front end of the inclined roadway automatic anti-running car, and when the catching hook catches the car arrester, a brake steel wire rope connected with the catching hook tightly pulls a brake car of the inclined roadway automatic anti-running car under the preset braking force of the brake winch; and slowly stopping all mine cars connected in series with the braking cars of the inclined roadway automatic anti-running mine car according to a preset deceleration under the action of a preset braking force.
Preferably, the driving mechanism is a linear actuator, and the catching assembly comprises a hollow flange shaft and a catching hook; in the step (3), the driving mechanism is a hydraulic driving system and comprises an oil tank, an oil cylinder and a hydraulic system oil way; the speed limiting trigger is a valve trigger; in the step (3), when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the valve trigger through the chain wheel transmission mechanism, a reversing valve of the valve trigger is opened, an oil circuit of a hydraulic system of the oil cylinder is opened, at the moment, hydraulic oil in a rod cavity of the oil cylinder is decompressed to an oil tank through the valve group, meanwhile, a compression spring in a rodless cavity of the oil cylinder is released under the condition of no oil pressure, a piston rod of the oil cylinder extends out to drive the capture component to act until a fourth connecting end of the capture component falls in front of the car arrester, and when the capture hook captures the car arrester, a brake steel wire rope connected with the capture hook tightly pulls the brake car of the inclined roadway automatic anti-running car under the preset braking force of the brake winch; and slowly stopping all mine cars connected in series with the braking cars of the inclined roadway automatic anti-running mine car according to a preset deceleration under the action of a preset braking force.
According to the technical scheme, compared with the prior art, the invention has the following advantages:
the invention provides an anti-running clutch mechanism with a specific structural form aiming at the requirements of inclined roadway transportation, which is provided with a speed-limiting sensing device firstly, so as to send a trigger signal when a vehicle is overspeed, and a rigid capture component is driven by a driving mechanism to rotate so as to be buckled with a car arrester, so that a braking and stopping point of a mine car body is determined; then, in order to reduce or even eliminate the rigid impact in the process of stopping the mine car, the invention adopts the braking winch linked with the catching assembly, so that the mine car body can be decelerated according to the preset braking force (applied by the braking winch) under the flexible pulling of the braking steel wire rope (connected with the braking winch) until the mine car body stops on the inclined roadway guide rail, thereby realizing the active protection of the inclined roadway transport vehicle, fundamentally eliminating the occurrence of car running accidents and improving the safety of inclined roadway transportation.
Drawings
FIG. 1 is a schematic structural view of an inclined roadway automatic catcher car according to embodiment 1 of the invention;
fig. 2 is a schematic structural view of an inclined roadway automatic run-preventing mine car (a run-preventing arresting device is partially cut away at a position, and an arresting assembly is separated from a car arrester) according to embodiment 1 of the invention.
Fig. 3 is a schematic structural view of an inclined roadway automatic run-proof mine car (a run-proof arresting device is partially cut away at the position, and an arresting component is buckled with a car arrester) according to embodiment 1 of the invention.
Fig. 4 is a left side view of fig. 1 (with a partial cutaway at the location of the anti-run catch device).
Fig. 5 is a left side view of fig. 3 (with a partial cutaway at the location of the anti-run catch device).
In fig. 1 to 5: 1. a track; 2. a wheel; 3. tensioning the bolt; 4. a sprocket drive mechanism; 41. a chain; 42. a drive sprocket; 43. a driven sprocket; 5-1. a rotating speed trigger; 6. fixing a pin shaft; 7-1, a linear actuator; 8. a hollow flange shaft; 9. a pin shaft; 10. catching a hook; 11. braking the steel wire rope; 12. a nut; 13. braking the winch; 14. a road splint; 15. a road splint bolt; 16. a car arrester;
FIG. 6 is a schematic view showing the construction of an inclined drift automatic catcher car (the catcher assembly is separated from the car stopper) according to embodiment 2 of the present invention;
FIG. 7 is a left side view of FIG. 6;
FIG. 8 is a schematic view showing the construction of an inclined drift automatic catcher car according to embodiment 2 of the present invention (the catching unit is engaged with the car stopper);
FIG. 9 is a left side view of FIG. 8;
in fig. 6 to 9: 1. a track; 2. a wheel; 3. tensioning the bolt; 4. a sprocket drive mechanism; 5-2. a valve trigger; 6. fixing a pin shaft; 7-2, oil cylinder; 8. a hollow flange shaft; 9. a pin shaft; 10. catching a hook; 11. braking the steel wire rope; 12. a nut; 13. braking the winch; 14. a road splint; 15. a road splint bolt; 16. a car arrester; 17. and an oil tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The relative arrangement of the components and steps, expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways (rotated 90 degrees or at other orientations).
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, for the purpose of convenience of description, the vertical direction, the transverse direction and the longitudinal direction are perpendicular to each other, and the two directions in the vertical direction are up and down directions respectively.
Example 1
As shown in fig. 1 to 5, the inclined roadway automatic anti-running mine car comprises a mine car body, wherein the mine car body can run along an inclined roadway guide rail through wheels, and an anti-running clutch mechanism is arranged between the mine car body and the inclined roadway guide rail; the anti-running clutch mechanism comprises a speed limiting sensing device, an anti-running catching device and a car arrester; therefore, the brake car can immediately send a trigger signal to the driving mechanism of the anti-running catching device at the moment of the car running trend, so that the braking and parking instantaneity of the anti-running catching device is realized, the accidents are prevented, and the personnel accidents and the property loss are avoided.
The speed-limiting sensing device can sense the speed of the wheel and can send a trigger signal to a driving mechanism of the anti-running catching device when the speed of the wheel reaches a preset limit speed; in the invention, the speed limit sensing device comprises a rotating speed trigger and a chain wheel transmission mechanism; the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain which rounds along the driving chain wheel and the driven chain wheel; the driving chain wheel is fixed on a rotating shaft of the wheel, and the driven chain wheel is connected with the power input end of the rotating speed trigger; when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the rotating speed trigger through the chain wheel transmission mechanism, a trigger signal can be sent to the driving mechanism of the anti-running catching device through the rotating speed trigger. In order to realize the adjustment of the chain tension and improve the reliability of the chain wheel transmission mechanism, the mounting seat of the rotating speed trigger is arranged on the mine car body through a tension bolt; through adjusting the tensioning bolt, can adjust the power input end of rotational speed trigger for the distance of wheel pivot, can realize the adjustment of chain rate of tension. In addition, the invention can also change the speed taking ratio and adjust the triggering speed of the rotating speed trigger through the pairing combination of the transmission ratio of the chain wheels.
The anti-running catching device comprises a catching assembly, a driving mechanism and a brake winch, wherein the driving mechanism and the brake winch are fixedly arranged on the mine car body, and the driving mechanism is a linear actuator; wherein:
the catching assembly comprises four connecting ends which are respectively a first connecting end, a second connecting end, a third connecting end and a fourth connecting end; the catching assembly is positioned and installed on the mine car body through a first connecting end, is connected with the power output end of the driving mechanism through a second connecting end, is connected with a brake steel wire rope of a brake winch through a third connecting end, and can be clutched with the car arrester through a fourth connecting end; specifically, the catching assembly comprises a hollow flange shaft and a catching hook; the outer wall of the hollow flange shaft is provided with a rotating part and a swinging arm, and the hollow flange shaft is rotatably arranged on the mine car body through the rotating part and is connected with the power output end of the linear actuator through the swinging arm; the catching hook comprises a fixed end and a hook body; the fixed end of the catching hook is embedded in a flange of the hollow flange shaft, and the hook body can be in clutch with the car arrester under the driving of the power of the linear actuator; one end of a brake steel wire rope is wound on the brake winch, and the other end of the brake steel wire rope penetrates through the hollow flange shaft and the stop block arranged in the capture hook in sequence and then is fixed with the stop block through a locking piece; therefore, the first connecting end is a rotating part of the hollow flange shaft, and the second connecting end is a swing arm of the hollow flange shaft; the third connecting end is a stop block arranged in the catching hook; the fourth connecting end is a hook body.
The car arrester is arranged on the inclined roadway guide rail; the inclined lane guide rails comprise two inclined lane guide rails, each inclined lane guide rail is formed by continuously laying a plurality of rails, and every two adjacent rails are fixedly connected through a lane clamping plate by using a lane clamping plate bolt; and a car arrester is arranged between the track clamping plates at the corresponding positions of the two inclined lane guide rails, so that the full stroke along the inclined lane guide rails can be ensured within a braking range.
When the mine car body normally runs along the track (is driven by the traction of a steel wire rope), the driving mechanism is in a braking state; the catching assembly and the car arrester are in a separated state; the brake winch is preset with brake force and is connected with the capture component through a brake steel wire rope;
when the mine car body runs abnormally along the inclined roadway guide rail (such as the traction steel wire rope falls off or breaks accidentally, and the mine car slides down on the inclined roadway guide rail under the influence of gravity), and a trigger signal is sent to the driving mechanism through the speed-limiting sensing device, the driving mechanism is started after receiving the trigger signal, and the catching assembly is pushed to rotate around the axis of the first connecting end through the power output end until the fourth connecting end can be buckled with the car arrester; and gradually overcoming the preset braking force of the braking winch in the process that the capture assembly rotates around the axis of the first connecting end until the mine car body is slowly braked and stopped by the pulling of the braking steel wire rope under the action of the preset braking force of the braking winch.
According to the inclined roadway automatic anti-running mine car, the invention can provide an anti-running braking method of the inclined roadway automatic anti-running mine car, which comprises the following steps:
(1) in the process that the inclined drift automatic anti-running mine car runs along the inclined drift guide rail, the running speed of the inclined drift automatic anti-running mine car is converted into corresponding rotating speed through the chain wheel transmission mechanism, and the rotating speed is synchronously transmitted to the rotating speed trigger;
(2) when the inclined roadway automatic anti-running mine car runs downwards along the inclined roadway guide rail and the running speed exceeds the preset limit speed, the rotating speed transmitted by the rotating speed trigger through the chain wheel transmission mechanism reaches the triggering rotating speed of the rotating speed trigger, so that the rotating speed trigger sends a triggering signal towards the driving mechanism of the anti-running arresting device;
(3) the driving mechanism is started after receiving the trigger signal, and the catching assembly is pushed to rotate around the axis of the first connecting end through the power output end until the fourth connecting end can be buckled with the car arrester; and gradually overcoming the preset braking force of the braking winch in the process that the capture assembly rotates around the axis of the first connecting end until the mine car body is slowly braked and stopped by the pulling of the braking steel wire rope under the action of the preset braking force of the braking winch.
Preferably, the driving mechanism is a linear actuator, and the catching assembly comprises a hollow flange shaft and a catching hook; in the step (3), after the linear actuator is started, the power output end of the linear actuator extends out to drive the swing arm on the hollow flange shaft, so that the hollow flange shaft rotates downwards around the shaft, the catching hook is driven by the hollow flange shaft to rotate downwards and falls in front of a car arrester at the front end of the inclined roadway automatic anti-running car, and when the catching hook catches the car arrester, a brake steel wire rope connected with the catching hook tightly pulls a brake car of the inclined roadway automatic anti-running car under the preset braking force of the brake winch; and slowly stopping all mine cars connected in series with the inclined roadway automatic anti-running mine car according to a preset deceleration under the action of a preset braking force.
Example 2
The present embodiment is different from embodiment 1 in that a driving mechanism, a speed-limiting sensing device and a car arrester with different structural forms are adopted, and other components are the same as those in embodiment 1, and are not described herein again. Only the differences mentioned above are elaborated upon, in particular as follows:
as shown in fig. 6-9, in the present embodiment, the driving mechanism is a hydraulic driving system, and includes an oil tank, an oil cylinder, and a hydraulic system oil path; the speed-limiting sensing device comprises a valve trigger and a chain wheel transmission mechanism.
The chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain which rounds along the driving chain wheel and the driven chain wheel; the driving chain wheel is fixed on a rotating shaft of the wheel, and the driven chain wheel is connected with the power input end of the valve trigger; the actual limit speed under the working condition is set according to the actual operating working condition, and the triggering speed of the valve trigger is adjusted or customized through a chain wheel (gear) pair.
One end of the oil cylinder is fixed on the brake vehicle through a fixed pin shaft, and the other end of the oil cylinder is connected with a swing arm on the hollow flange shaft through a pin shaft.
The valve trigger is triggered in a rotating direction, and when the brake car runs upwards on an inclined roadway track, the speed trigger function is not available. When the downward running speed of the motor car on the inclined roadway track exceeds the limit speed of the brake car, the speed transmitted to the valve trigger through the chain wheel (gear) pair just reaches the triggering speed of the valve trigger, and at the moment, a reversing valve on the valve trigger is opened by the trigger, and an oil way of a hydraulic system is opened.
After the reversing valve on the valve trigger is opened, hydraulic oil in a rod cavity of the oil cylinder is decompressed and returned to the oil tank through the valve group, meanwhile, a compression spring in a rodless cavity of the oil cylinder is released under the condition of no oil pressure, the oil cylinder extends out to drive a swing arm on the hollow flange shaft, so that the hollow flange shaft rotates downwards around the shaft, the catching hook is driven by the hollow flange shaft and then rotates downwards to fall in front of a car arrester installed on a track clamping plate, when the catching hook catches the car arrester, a brake steel wire rope connected with the catching hook tightly pulls the brake car under the preset braking force of the brake winch, and under the action of the braking force, the brake car is slowly stopped according to the preset deceleration.
In this embodiment, the car arrester is installed on the outer side of the road clamping plate, and compared with embodiment 1, such an arrangement mode has a wider application scenario, and is particularly suitable for arranging and installing other mechanisms between existing inclined lane guide rails, which is not beneficial to increasing the number of the cross-track type car arresters in embodiment 1.
Claims (9)
1. An automatic anti-running-away mine car in an inclined roadway comprises a mine car body, wherein the mine car body can run along an inclined roadway guide rail through wheels; the anti-running clutch mechanism comprises a speed limiting sensing device, an anti-running catching device and a car arrester; wherein:
the speed-limiting sensing device can sense the speed of the wheel and can send a trigger signal to a driving mechanism of the anti-running catching device when the speed of the wheel reaches a preset limit speed;
the anti-running catching device comprises a catching component, a driving mechanism and a braking winch, wherein the driving mechanism and the braking winch are fixedly arranged on the mine car body;
the catching assembly comprises four connecting ends which are respectively a first connecting end, a second connecting end, a third connecting end and a fourth connecting end; the catching assembly is positioned and installed on the mine car body through a first connecting end, is connected with the power output end of the driving mechanism through a second connecting end, is connected with a brake steel wire rope of a brake winch through a third connecting end, and can be clutched with the car arrester through a fourth connecting end;
the car arrester is arranged on the inclined roadway guide rail;
when the mine car body normally runs along the track, the driving mechanism is in a braking state; the catching assembly and the car arrester are in a separated state; the brake winch is preset with brake force and is connected with the capture component through a brake steel wire rope;
when the mine car body runs abnormally along the inclined roadway guide rail and sends a trigger signal to the driving mechanism through the speed-limiting sensing device, the driving mechanism is started after receiving the trigger signal, and the catching assembly is pushed to rotate around the axis of the first connecting end through the power output end until the fourth connecting end falls right in front of the car arrester, and the fourth connecting end can be buckled with the car arrester; after the catching assembly is buckled with the car arrester, the braking steel wire rope connected with the catching assembly can tightly pull the mine car body under the action of the preset braking force of the braking winch, so that the mine car body is braked and stopped according to the deceleration corresponding to the preset braking force.
2. The inclined roadway automatic anti-running mine car as claimed in claim 1, wherein the driving mechanism is a linear actuator; the speed limit sensing device comprises a rotating speed trigger and a chain wheel transmission mechanism; the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain which rounds along the driving chain wheel and the driven chain wheel; the driving chain wheel is fixed on a rotating shaft of the wheel, and the driven chain wheel is connected with the power input end of the rotating speed trigger; when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the rotating speed trigger through the chain wheel transmission mechanism, a trigger signal can be sent to the driving mechanism of the anti-running catching device through the rotating speed trigger.
3. The inclined roadway automatic anti-running mine car according to claim 2, wherein the mounting seat of the rotation speed trigger is mounted on the mine car body through a tension bolt; through adjusting the tensioning bolt, the distance of the power input end of the rotating speed trigger relative to the wheel rotating shaft can be adjusted, and therefore the chain tension degree can be adjusted.
4. The inclined roadway automatic anti-running mine car according to claim 1, wherein the driving mechanism is a hydraulic driving system, and comprises an oil tank, an oil cylinder and a hydraulic system oil way; the speed limit sensing device comprises a valve trigger and a chain wheel transmission mechanism;
the chain wheel transmission mechanism comprises a driving chain wheel, a driven chain wheel and a chain which rounds along the driving chain wheel and the driven chain wheel; the driving chain wheel is fixed on a rotating shaft of the wheel, and the driven chain wheel is connected with the power input end of the valve trigger;
when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the valve trigger through the chain wheel transmission mechanism, the reversing valve of the valve trigger is opened, the oil circuit of a hydraulic system of the oil cylinder is opened, at the moment, hydraulic oil in the rod cavity of the oil cylinder is decompressed and returned to the oil tank through the valve group, meanwhile, a compression spring in the rodless cavity of the oil cylinder is released under the condition of no oil pressure, a piston rod of the oil cylinder extends out to drive the capture component to act until the fourth connecting end of the capture component falls right in front of the car arrester.
5. The inclined roadway automatic anti-running mine car according to claim 2 or 4, wherein the catching assembly comprises a hollow flange shaft, a catching hook; wherein:
the outer wall of the hollow flange shaft is provided with a rotating part and a swinging arm, and the hollow flange shaft is rotatably arranged on the mine car body through the rotating part and is connected with the power output end of the linear actuator through the swinging arm;
the catching hook comprises a fixed end and a hook body; the fixed end of the catching hook is embedded in a flange of the hollow flange shaft, and the hook body can be in clutch with the car arrester under the driving of the power of the linear actuator;
one end of a brake steel wire rope is wound on the brake winch, and the other end of the brake steel wire rope penetrates through the hollow flange shaft and the stop block arranged in the capture hook in sequence and then is fixed with the stop block through a locking piece;
the first connecting end is a rotating part of the hollow flange shaft, and the second connecting end is a swing arm of the hollow flange shaft; the third connecting end is a stop block arranged in the catching hook; the fourth connecting end is a hook body.
6. The inclined roadway automatic anti-running mine car according to claim 1, wherein the inclined roadway guide rails comprise two, each inclined roadway guide rail is formed by continuously laying a plurality of rails, and every two adjacent rails are connected through a roadway clamping plate;
a car arrester is arranged between the road clamping plates at the corresponding positions of the two inclined lane guide rails; or the outer sides of the road clamping plates at the corresponding positions of the two inclined lane guide rails are respectively provided with a car arrester.
7. An anti-run braking method for an inclined roadway automatic anti-run mine car according to claim 1, characterized by comprising the steps of:
(1) in the process that the inclined drift automatic anti-running mine car runs along the inclined drift guide rail, the running speed of the inclined drift automatic anti-running mine car is converted into corresponding rotating speed through the chain wheel transmission mechanism and is synchronously transmitted to the speed limiting trigger;
(2) when the inclined roadway automatic anti-running tramcar runs downwards along the inclined roadway guide rail and the running speed exceeds the preset limit speed, the rotating speed transmitted by the speed-limiting trigger through the chain wheel transmission mechanism reaches the triggering rotating speed of the speed-limiting trigger, so that the speed-limiting trigger sends a triggering signal towards the driving mechanism of the anti-running arresting device;
(3) the driving mechanism is started after receiving the trigger signal, and the catching assembly is pushed to rotate around the axis of the first connecting end through the power output end until the fourth connecting end falls right in front of the car arrester and can be buckled with the car arrester; after the catching assembly is buckled with the car arrester, the braking steel wire rope connected with the catching assembly can tightly pull the mine car body under the action of the preset braking force of the braking winch, so that the mine car body is braked and stopped according to the deceleration corresponding to the preset braking force.
8. The anti-run braking method for the inclined roadway automatic anti-run tramcar according to claim 7, wherein the driving mechanism is a linear actuator, and the speed limiting trigger is a rotating speed trigger; the catching assembly comprises a hollow flange shaft and a catching hook; in the step (3), after the linear actuator is started, the power output end of the linear actuator extends out to drive the swing arm on the hollow flange shaft, so that the hollow flange shaft rotates downwards around the shaft, the catching hook is driven by the hollow flange shaft to rotate downwards and falls in front of a car arrester at the front end of the inclined roadway automatic anti-running car, and when the catching hook catches the car arrester, a brake steel wire rope connected with the catching hook tightly pulls a brake car of the inclined roadway automatic anti-running car under the preset braking force of the brake winch; and slowly stopping all mine cars connected in series with the braking cars of the inclined roadway automatic anti-running mine car according to a preset deceleration under the action of a preset braking force.
9. The method for braking an inclined roadway automatic catcher car according to claim 7, wherein the drive mechanism is a linear actuator, and the catching assembly comprises a hollow flange shaft and a catching hook; in the step (3), the driving mechanism is a hydraulic driving system and comprises an oil tank, an oil cylinder and a hydraulic system oil way; the speed limiting trigger is a valve trigger; in the step (3), when the rotating speed of the axle of the wheel reaches the rotating speed corresponding to the preset limit speed of the wheel and is transmitted to the valve trigger through the chain wheel transmission mechanism, a reversing valve of the valve trigger is opened, an oil circuit of a hydraulic system of the oil cylinder is opened, at the moment, hydraulic oil in a rod cavity of the oil cylinder is decompressed to an oil tank through the valve group, meanwhile, a compression spring in a rodless cavity of the oil cylinder is released under the condition of no oil pressure, a piston rod of the oil cylinder extends out to drive the capture component to act until a fourth connecting end of the capture component falls in front of the car arrester, and when the capture hook captures the car arrester, a brake steel wire rope connected with the capture hook tightly pulls the brake car of the inclined roadway automatic anti-running car under the preset braking force of the brake winch; and slowly stopping all mine cars connected in series with the braking cars of the inclined roadway automatic anti-running mine car according to a preset deceleration under the action of a preset braking force.
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| CN202011379716.9A CN112918507B (en) | 2020-11-30 | 2020-11-30 | Automatic anti-running mine car in inclined lane and anti-running braking method thereof |
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| CN114655363A (en) * | 2022-02-28 | 2022-06-24 | 中国舰船研究设计中心 | Remote control unlocking oil tank emergency throwing device based on rolling linear guide rail pair |
| CN117002540A (en) * | 2023-07-24 | 2023-11-07 | 中国水利水电第六工程局有限公司 | Inclined shaft transportation system |
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| CN112918507B (en) | 2022-07-22 |
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