CN112871389A

CN112871389A - Grinding device with self-adjustment of speed and rotation speed

Info

Publication number: CN112871389A
Application number: CN202110039756.7A
Authority: CN
Inventors: 汪沛华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-06-01

Abstract

The invention discloses a grinding device with self-adjustment of fast and slow rotating speeds, which comprises a motor and a grinding cylinder fixed with an external support, wherein the output end of the motor is fixedly connected with a driving shaft, the outer side wall of the driving shaft is fixedly connected with a first irregular gear, a rotating rod is coaxially arranged in the grinding cylinder, the rotating rod penetrates through the bottom of the grinding cylinder and is fixedly connected with a driven shaft, the outer side wall of the driven shaft is fixedly connected with a second irregular gear, and the first irregular gear and the second irregular gear are in meshing transmission. The invention adopts the structure that the first circular arc side edge and the second circular arc side edge of two side edges containing meshing teeth on the irregular panel are both semicircular arcs, wherein the diameter of the first circular arc side edge is half of that of the second circular arc side edge, so that the distance between a driving shaft and a driven shaft is always equal to the sum of the radius length of the first circular arc side edge and the radius length of the second circular arc side edge when the first irregular gear and the second irregular gear are in meshing transmission.

Description

Grinding device with self-adjustment of speed and rotation speed

Technical Field

The invention relates to the technical field of fast and slow adjusting grinding, in particular to a grinding device capable of automatically adjusting fast and slow rotating speeds.

Background

At present, in some material grinding systems, grinding blades are often used for grinding materials to be crushed, but the following problems often occur in the grinding and crushing process:

firstly, the problem of slow blanking exists in the crushing and grinding process, and the reason is mainly that the grinding device and the grinding wall are always in a high-speed rotating and grinding state in the grinding process, so that powder generated in the grinding process is easily subjected to centrifugal force to cause that the powder cannot be blanked through a normal gap, a large amount of powder is accumulated between the grinding device and the grinding wall, and the blanking cannot be normally carried out;

secondly, the grinding rod can be because the fatigue fracture that long-time rotation leads to at the grinding process of material, and then the damage grinder, produces such reason and mainly has the unchangeable grinding mode of rotational speed at the in-process of grinding, can lead to the grinding rod to be in the unchangeable operating condition of a rotational speed all the time like this, is unfavorable for the continuous operation of grinding rod like this.

For this reason, we have devised.

Disclosure of Invention

The invention aims to solve the problem of fatigue fracture caused by slow blanking and long-time rotation in the crushing and grinding process, and provides a grinding device with self-adjustment of fast and slow rotating speed.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a grinder with fast slow rotation speed self-interacting, includes the motor and with the grinding vessel fixed of peripheral hardware support, motor output fixedly connected with driving shaft, the first irregular gear of fixedly connected with on the driving shaft lateral wall, the coaxial dwang that is provided with in the grinding vessel, the dwang runs through in the grinding vessel bottom, and dwang and driven shaft fixed connection, fixedly connected with second irregular gear on the driven shaft lateral wall, first irregular gear and the transmission of second irregular gear engagement, be provided with the spiral grinding sword that is used for grinding on the dwang lateral wall, grinding vessel lateral wall bottom is provided with the discharging pipe that is used for the ejection of compact.

Preferably, the first irregular gear and the second irregular gear are gears with the same size.

Preferably, first irregular gear includes irregular panel, fixed orifices, a plurality of meshing tooth, first circular arc side and second circular arc side are located irregular panel both sides limit respectively, and are a plurality of the meshing tooth sets up on first circular arc side and second circular arc side, the fixed orifices is seted up on first circular arc side centre of circle.

Preferably, the first arc side and the second arc side are both semi-circular arcs, and the diameter of the first arc side is half of the diameter of the second arc side.

Preferably, the distance between the driving shaft and the driven shaft is always equal to the sum of the radius length of the first arc side and the radius length of the second arc side.

The invention has the beneficial effects that:

1. the invention adopts the structure that the first circular arc side edge and the second circular arc side edge of two side edges containing meshing teeth on the irregular panel are both semicircular arcs, wherein the diameter of the first circular arc side edge is half of that of the second circular arc side edge, so that the distance between a driving shaft and a driven shaft is always equal to the sum of the radius length of the first circular arc side edge and the radius length of the second circular arc side edge when the first irregular gear and the second irregular gear are in meshing transmission.

2. According to the invention, when the drilling speed of the driving shaft is a fixed value, the linear speed is slower when the first irregular gear is closer to the driving shaft, otherwise, the linear speed is faster, so that the first irregular gear can transmit the changed linear speed to the second irregular gear through meshing transmission, and further the driven shaft can be driven to be a rotating shaft with the changed rotating speed.

Drawings

FIG. 1 is a schematic structural diagram of a grinding apparatus with self-regulation of rotation speed;

FIG. 2 is a front view of a grinding apparatus with self-adjustment of the rotational speed;

FIG. 3 is a schematic diagram of an irregular gear in a grinding device with self-adjustment of the rotation speed;

fig. 4 is a top view of an irregular gear in a grinding device with fast and slow rotation speed self-adjustment according to the present invention.

In the figure: 1 motor, 2 first irregular gears, 21 irregular panels, 22 fixed holes, 23 meshing teeth, 24 first arc sides, 25 second arc sides, 3 driving shafts, 4 driven shafts, 5 second irregular gears, 6 grinding cylinders, 7 rotating rods, 8 discharge pipes and 9 spiral grinding blades.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and 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.

Referring to fig. 1-4, a grinder with self-adjustment of speed, including motor 1 and grinding vessel 6 fixed with the peripheral hardware support, motor 1 output end fixedly connected with driving shaft 3, fixedly connected with first irregular gear 2 on the driving shaft 3 lateral wall, the coaxial dwang 7 that is provided with in the grinding vessel 6, dwang 7 runs through in grinding vessel 6 bottom, and dwang 7 and driven shaft 4 fixed connection, fixedly connected with second irregular gear 5 on the driven shaft 4 lateral wall, first irregular gear 2 and the meshing transmission of second irregular gear 5, first irregular gear 2 and second irregular gear 5 are the gear that the size is the same, driving shaft 3 and motor 1's output end fixed connection, and the meshing transmission of second irregular gear 5 on first irregular gear 2 and the driven shaft 4 that the driving shaft 3 lateral wall set up.

First irregular gear 2 includes irregular panel 21, fixed orifices 22, a plurality of meshing tooth 23, first circular arc side 24 and second circular arc side 25 are located irregular panel 21 both sides limit respectively, a plurality of meshing tooth 23 set up on first circular arc side 24 and second circular arc side 25, fixed orifices 22 are seted up on first circular arc side 24 centre of a circle, when driving shaft 3 drilling rate is the definite value, first irregular gear 2 is more slow more closely the linear velocity from driving shaft 3 distance, otherwise faster, like this, first irregular gear 2 can pass on second irregular gear 5 with the linear velocity of this kind of change through meshing transmission, and then can drive driven shaft 4 is the pivot of rotational speed change.

The first arc side 24 and the second arc side 25 are both semi-circular arcs, the diameter of the first arc side 24 is half of the diameter of the second arc side 25, the distance between the driving shaft 3 and the driven shaft 4 is always equal to the sum of the radius length of the first arc side 24 and the radius length of the second arc side 25, as shown in fig. 4, the fixing hole 22 is formed in the circle center of the first arc side 24, and therefore it can be effectively guaranteed that the distance between the driving shaft 3 and the driven shaft 4 is always equal to the sum of the radius length of the first arc side 24 and the radius length of the second arc side 25 when the first irregular gear 2 and the second irregular gear 5 are in meshing transmission.

Be provided with the spiral grinding sword 9 that is used for grinding on the 7 lateral walls of dwang, 6 lateral walls of grinding vessel bottom is provided with discharging pipe 8 that is used for the ejection of compact, the driven shaft 4 of this kind of rotational speed change can drive the spiral grinding sword 9 on the dwang 7 and grind the article of waiting to grind of throwing down from 6 tops of grinding vessel, can play the intermittent type nature grinding to the material like this, it leads to a large amount of powder to pile up the problem between mill and grinding wall to be in high-speed rotatory grinding all the time between spiral grinding sword 9 and the 6 section of thick bamboo walls of grinding vessel in the grinding process to have solved, can alleviate dwang 7 simultaneously and be in the unchangeable operating.

The working principle of the invention is as follows: firstly, a driving shaft 3 is fixedly connected with the output end of a motor 1, and a first irregular gear 2 arranged on the outer side wall of the driving shaft 3 is in meshing transmission with a second irregular gear 5 on a driven shaft 4.

It should be noted that the first irregular gear 2 and the second irregular gear 5 have the same size and shape, and referring to fig. 3, the first arc side 24 and the second arc side 25 of the two sides of the irregular panel 21 containing the engaging teeth 23 shown on the first irregular gear 2 are both semi-circular arcs, wherein the diameter of the first arc side 24 is half of the diameter of the second arc side 25, and referring to fig. 4, the fixing hole 22 is formed at the center of the first arc side 24, so that the distance between the driving shaft 3 and the driven shaft 4 can be effectively ensured to be always equal to the sum of the radius length of the first arc side 24 and the radius length of the second arc side 25 when the first irregular gear 2 and the second irregular gear 5 are in meshing transmission.

Wherein when 3 drilling rates of driving shaft are the definite value, first irregular gear 2 just is slower more closely linear speed from 3 distances of driving shaft, otherwise is faster, like this, first irregular gear 2 can pass on second irregular gear 5 with the linear speed of this kind of change through the meshing transmission, and then can drive the pivot that driven shaft 4 changes for the rotational speed.

Then the driven shaft 4 with the change of the rotating speed can drive the spiral grinding edge 9 on the rotating rod 7 to grind the object to be ground dropped from the top of the grinding cylinder 6, so that intermittent grinding of the material can be realized, the problem that a large amount of powder is accumulated between the grinder and the grinding wall due to the fact that the spiral grinding edge 9 and the cylinder wall of the grinding cylinder 6 are always in high-speed rotary grinding in the grinding process is solved, and meanwhile, the rotating rod 7 can be effectively relieved and always kept in a working state with the unchanged rotating speed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A grinding device with self-adjustment of fast and slow rotating speeds comprises a motor (1) and a grinding cylinder (6) fixed with an external bracket, it is characterized in that the output end of the motor (1) is fixedly connected with a driving shaft (3), the outer side wall of the driving shaft (3) is fixedly connected with a first irregular gear (2), a rotating rod (7) is coaxially arranged in the grinding cylinder (6), the rotating rod (7) penetrates through the bottom of the grinding cylinder (6), the rotating rod (7) is fixedly connected with the driven shaft (4), the outer side wall of the driven shaft (4) is fixedly connected with a second irregular gear (5), the first irregular gear (2) is in meshed transmission with the second irregular gear (5), a spiral grinding blade (9) for grinding is arranged on the outer side wall of the rotating rod (7), and a discharge pipe (8) for discharging is arranged at the bottom of the side wall of the grinding cylinder (6).

2. A grinding device with fast and slow rotation speed self-adjustment according to claim 1, characterized in that the first irregular gear (2) and the second irregular gear (5) are gears with the same size.

3. A grinding apparatus with self-regulation of the rotation speed according to claim 1, wherein the first irregular gear (2) comprises an irregular face plate (21), a fixing hole (22), a plurality of engaging teeth (23), a first arc side (24) and a second arc side (25), the first arc side (24) and the second arc side (25) are respectively located at both sides of the irregular face plate (21), the plurality of engaging teeth (23) are arranged on the first arc side (24) and the second arc side (25), and the fixing hole (22) is arranged at the center of the first arc side (24).

4. A grinding apparatus with self-regulation of the rotation speed according to claim 3, characterized in that the first circular arc side (24) and the second circular arc side (25) are both semicircular arcs, and the diameter of the first circular arc side (24) is half of the diameter of the second circular arc side (25).

5. A grinding device with self-adjustment of the rotation speed according to claim 4, characterized in that the distance between the driving shaft (3) and the driven shaft (4) is always equal to the sum of the length of the radius of the first circular arc side (24) and the length of the radius of the second circular arc side (25).