CN215989281U

CN215989281U - A earthing device and mobile device for track mobile device

Info

Publication number: CN215989281U
Application number: CN202121045754.0U
Authority: CN
Inventors: 吴克锤; 张卫; 袁有才
Original assignee: Sany Marine Heavy Industry Co Ltd
Current assignee: Sany Marine Heavy Industry Co Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-03-08
Anticipated expiration: 2031-05-14

Abstract

The application provides a grounding device for track mobile equipment and mobile equipment, which comprise a mounting frame, a pressing mechanism, a grounding cable, a roller body fixing frame and a conductive roller arranged on the roller body fixing frame, wherein the conductive roller is in contact with a track surface of a track, and the conductive roller is used as a conductive body in contact with the track surface of the track to convert sliding friction between the conductive body and the track surface of the track into rolling friction, so that the damage rate of the conductive body caused by friction in the using process is reduced, the service life of the conductive body is prolonged, and the rolling friction process between the conductive body and the track surface of the track is not easy to generate electric sparks, so that the probability of safety accidents is further reduced; when the conductive roller meets the uneven track surface of the track, the conductive roller can also adapt to the shape of the track surface of the track to continuously move, and the situation that the conductive roller cannot move along with the mobile equipment due to the fact that the conductive roller is clamped on the track surface of the track is reduced.

Description

A earthing device and mobile device for track mobile device

Technical Field

The application relates to the technical field of electrical equipment, in particular to a grounding device for track mobile equipment and the mobile equipment.

Background

The electrical equipment needs to be connected with the grounding system through the grounding device, and when an electrical fault occurs, the fault current can be safely introduced into the grounding system, so that the equipment and personnel are prevented from being damaged. Equipment such as bridge cranes and track cranes moving along a track need to ensure that the grounding device can still keep good contact with the track surface of the track during the moving process. At present, sliding grounding devices are mostly adopted on equipment such as bridge cranes, track cranes and the like in the related art, so that the equipment and the track are electrically connected.

However, in the application process of the sliding grounding device, because sliding friction exists between the sliding grounding device and the rail surface of the rail, the sliding grounding device is easy to wear after long-term use, and when the rail surface of the rail is uneven, even the grounding device is easy to damage, and when the contact between the conductor and the rail surface of the rail fails, the electrical connection between the equipment and the rail surface of the rail fails, the fault current cannot be introduced into the grounding system in time, so that the equipment is damaged, workers are injured and killed, and the consequences are serious.

Disclosure of Invention

In view of this, the application provides a grounding device for track mobile equipment and mobile equipment, has solved the technical problem that the sliding grounding device of prior art is easy to wear and tear, makes the grounding device damage, causes the fault current and can not introduce grounding system in time and easily takes place the incident.

According to one aspect of the present application, there is provided a grounding device for a track moving apparatus for electrically connecting the moving apparatus with a track, the grounding device comprising: the mounting frame is connected with the mobile equipment at one end in the vertical direction; one end of the pressing mechanism is connected with the mounting frame; the roller body fixing frame is connected with the other end of the pressing mechanism; the conductive roller is arranged on the roller body fixing frame and is in contact with the track surface of the track; one end of the grounding cable is connected with the mounting frame, and the other end of the grounding cable is connected with the roller body fixing frame; the pressing mechanism is used for applying a first acting force to the conductive roller, and the direction of the first acting force is the vertical direction from the center of the conductive roller to the track surface of the track.

Optionally, the pressing mechanism includes: one end of the connecting rod device is connected with one end of the mounting frame in the horizontal direction, and the other end of the connecting rod device is connected with the roller body fixing frame; and the torsional spring is sleeved at one end, close to the mounting rack, of the connecting rod device.

Optionally, the link device includes: one end of the first connecting rod is connected with one end of the mounting frame in the horizontal direction; one end of the second connecting rod is connected with the roller body fixing frame; the first connecting rod and the second connecting rod are connected through a stud; the torsion spring sleeve is arranged at one end, close to the mounting rack, of the first connecting rod.

Optionally, the link device further includes: and the cross rod is arranged in the middle of the second connecting rod.

Optionally, one end of the mounting frame in the vertical direction is connected to the mobile device through a stud, where the mounting frame includes: the stud penetrates through the rubber fixing block and is connected with the angle folding plate.

Optionally, the roller body fixing frame comprises a bending plate, one end of the grounding cable is connected with the bending plate, and the other end of the grounding cable is connected with the angle bending plate.

Optionally, the mounting frame further includes: the groove plate is used for mounting the rubber fixing block and is connected with the first connecting rod so as to realize that the first connecting rod is connected with one end of the mounting frame in the horizontal direction; and the iron plates are arranged in the groove plates and on two sides of the rubber fixing block, and the groove plates are connected with one end of the torsion spring.

Optionally, the grounding device further includes: the rail sweeping device is arranged on the roller body fixing frame and used for clearing obstacles on the rail surface of the rail.

Optionally, the ground device comprises two rail-sweeping devices, wherein the rail-sweeping devices are rail-sweeping plates or rail-sweeping brushes.

According to another aspect of the present application, there is provided a rail moving apparatus including the grounding device for a rail moving apparatus described above.

The application provides a pair of earthing device for track mobile device for make mobile device and track electrical connection, be in including mounting bracket, hold-down mechanism, earth cable, roll body mount and setting at least one conductive roller on the roll body mount, conductive roller and orbital track face contact utilize conductive roller as with orbital track face contact's electric conductor, make the friction between electric conductor and the orbital track face be rolling friction, reduced the frictional force between electric conductor and the orbital track face. The benefits of this arrangement are: on one hand, the damage rate of the electric conductor due to friction in the use process is greatly reduced, the service life of the electric conductor is prolonged, electric sparks are not easy to generate in the rolling friction process between the electric conductor and the rail surface of the rail, and the probability of safety accidents is further reduced; on the other hand, when the conductive roller encounters the uneven track surface of the track, the conductive roller can also adapt to the shape of the track surface of the track to continuously move, so that the situation that the conductive roller cannot move along with the mobile equipment due to being clamped on the track surface of the track is reduced; and finally, the first acting force applied to the roller body fixing frame and the conductive roller by the pressing mechanism enables the conductive roller to be always kept in a contact state with the track surface of the track in the working process, and the grounding effect of the grounding device is further ensured.

Drawings

Fig. 1 is a schematic structural diagram illustrating a grounding device for a track moving apparatus according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram illustrating a mounting bracket and a pressing mechanism of a grounding device for a track moving apparatus according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a track brush of a grounding device for a track moving apparatus according to an embodiment of the present disclosure.

Reference numerals: 01. a track surface of the track; 1. a mounting frame; 11. a rubber fixing block; 12. a corner folding plate; 13. a groove plate; 131. an iron plate; 2. a hold-down mechanism; 21. a link means; 211. a first link; 212. a second link; 213. a cross bar; 22. a torsion spring; 3. a roller body fixing frame; 31. bending the plate; 4. a conductive roller; 5. a ground cable; 6. a rail sweeping device; 61. sweep the rail brush.

Detailed Description

In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

Fig. 1 is a schematic structural diagram of a grounding device for a track moving apparatus according to an embodiment of the present disclosure. As shown in fig. 1, the grounding device provided by the present application is used for electrically connecting an electrical device with a rail, and when an electrical fault occurs in the device, a fault current can be timely introduced into a grounding system, so as to prevent a safety accident. This earthing device includes mounting bracket 1, hold-down mechanism 2, roll body mount 3, sets up at least one conducting roller 4 and ground cable 5 on roll body mount 3, and wherein, mounting bracket 1 is connected with the mobile device in the ascending one end of vertical direction Y, and its other end and hold-down mechanism 2 one end on vertical direction Y are connected, and hold-down mechanism 2 other end on vertical direction Y is connected with roll body mount 3.

As shown in fig. 1, the conductive roller 4 is disposed on the roller body holder 3 and contacts with the track surface 01 of the track; one end of the grounding cable 5 is connected with the mounting frame 1, the other end of the grounding cable is connected with the roller body fixing frame 3, the grounding cable 5 is used for guiding fault current into the roller body fixing frame 3, the fault current enters the conductive roller 4 through the roller body fixing frame 3 and finally enters the track surface 01 of the track, and therefore the effect of guiding the fault current out is achieved. The pressing mechanism 2 applies a first acting force to the conductive roller 4, and the direction of the first acting force is the vertical direction from the center of the conductive roller 4 to the track surface 01 of the track. Mobile device drives conducting roller 4 and removes, at the motion in-process of conducting roller 4 on orbital track face 01, because conducting roller 4 is the roll body structure, its removal in-process, frictional force between conducting roller 4 and orbital track face 01 is rolling frictional force, make frictional force descend to some extent, thereby the rate of wear of electric conductor has been slowed down, and then the life of electric conductor has been prolonged, simultaneously conducting roller 4's design makes the electric conductor can adapt to orbital track face 01 protruding or sunken in the motion in-process, unlikely the problem that conducting roller 4 breaks away from orbital track face 01 and can't carry out electric safety guarantee. Meanwhile, the pressing mechanism 2 applies pressure to the roller body fixing frame 3 and the conductive roller 4 towards the track surface 01 of the track, so that the adhesion effect between the conductive roller 4 and the track surface 01 of the track is improved, and the grounding effect of the grounding device is further improved. In addition, in places with explosion-proof requirements, the grounding device using sliding contact is easy to generate sparks due to friction, and the conductive roller 4 can effectively solve the problem, improve the reliability of the grounding device and ensure the life safety of personnel.

It should be noted that, one or more conductive rollers 4 may be provided in the present application, and when the number of the conductive rollers 4 is multiple, after one of the conductive rollers 4 fails due to a fault, a fault current may still be introduced into the grounding system through the other conductive rollers 4, so as to reduce the probability of occurrence of a safety accident. Therefore, the present application does not further limit the specific number of the conductive rollers 4.

In one possible implementation manner, as shown in fig. 1, the pressing mechanism 2 includes a link device 21 and a torsion spring 22, wherein one end of the link device 21 is connected to one end of the mounting frame 1 in the horizontal direction X, and the other end of the link device in the horizontal direction X is connected to the roller body fixing frame 3; the torsion spring 22 is sleeved at one end of the link device 21 close to the mounting rack 1. Connecting rod device 21 will be located the mounting bracket 1 of top and be located the roll body mount 3 of below and connect, make both can receive the force jointly, and simultaneously, connecting rod device 21 makes mounting bracket 1's height freely adjustable, has improved earthing device to the suitability of the electrical equipment of co-altitude, has reduced equipment cost. The sleeve of the torsion spring 22 exerts a first acting force on the connecting rod device 21, so that the connecting rod devices 21 at the two ends of the mounting rack 1 in the horizontal direction are subjected to an extrusion force towards the inner sides of the connecting rod devices and the connecting rod devices, and a downward component force is further formed, and the conductive roller 4 is arranged in the roller body fixing frame 3 because the lower end of the connecting rod device 21 is connected with the roller body fixing frame 3, so that the conductive roller 4 and the track surface 01 of the track are pressed and kept attached to each other constantly, and the conductive effect of the grounding device is improved.

Specifically, as shown in fig. 1, the link device 21 includes a first link 211 and a second link 212, and one end of the first link 211 is connected to one end of the mounting bracket 1 in the horizontal direction X; one end of the second connecting rod 212 is connected with the roller body fixing frame 3, and the other end of the first connecting rod 211 is connected with one end of the second connecting rod 212 far away from the roller body fixing frame 3 through a stud. Meanwhile, the torsion spring 22 is sleeved at one end of the first connecting rod 211 close to the mounting rack 1. The worker can adjust the horizontal height of the end part of the first connecting rod 211 by adjusting the angle formed by the first connecting rod 211 and the second connecting rod 212 by taking the stud as the vertex, so that the height of the mounting frame 1 is adjusted, the mounting frame 1 can be electrically connected with electrical equipment with different heights, the adaptability of the grounding device is improved, and the equipment cost is saved; the torsion of the torsion spring 22 firstly acts on the first connecting rod 211, the first connecting rod 211 applies an acting force to the roller body fixing frame 3 through the second connecting rod 212, and then the conductive roller 4 arranged in the roller body fixing frame 3 keeps a contact state with the track surface 01 of the track after being stressed, so that the conductive reliability of the grounding device is ensured.

Specifically, fig. 2 is a schematic structural diagram of a mounting frame 1 and a pressing mechanism 2 of the grounding device for the track moving equipment provided by the present application. As shown in fig. 2, the link mechanism 21 further includes a cross bar 213 disposed in the middle of the second link 212, the cross bar 213 is disposed such that the inner space of the second link 212 is slightly wider than the outer space of the first link 211, and further, a gap is left between the first link 211 and the second link 212, and the link mechanism 21 can move freely, thereby adjusting the height of the mounting bracket 1.

Optionally, as shown in fig. 1, one end of the mounting bracket 1 in the vertical direction Y is connected to the mobile device through a stud, where the mounting bracket 1 includes a rubber fixing block 11 and a corner plate 12, and the stud passes through the rubber fixing block 11 and then is connected to the corner plate 12. The stud makes mounting bracket 1 be connected with the mobile device, and the mobile device drives mounting bracket 1 together to remove, and rubber fixing block 11 has both played the connection effect between stud and angle board 12, has played the cushioning effect again, has prolonged the life of angle board 12 and stud.

In a possible implementation manner, as shown in fig. 2, the mounting bracket 1 further includes a groove plate 13, and the groove plate 13 is used for mounting the rubber fixing block 11, that is, the rubber fixing block 11 is located in a groove on the groove plate 13; two iron plates 131 are connected in the groove plate 13, and the two iron plates 131 are respectively positioned at two sides of the rubber fixing block 11. The groove plate 13 is connected to the first link 211 at the same time, so that the first link 211 is connected to one end of the mounting bracket 1 in the horizontal direction X, and the groove plate 13 is connected to one end of the torsion spring 22 at the same time. The iron plate 131 is arranged to enable the stud, the rubber fixing block 11 and the groove plate 13 to be limited to form a whole, and the torsion spring 22 applies torsion to the groove plate 13, so that the torsion spring 22 applies torsion to the mounting frame 1 at the same time, and the torsion spring 22 exerts the effect of applying pressure towards the track surface 01 of the track to the grounding device.

Optionally, as shown in fig. 1, the roll body fixing frame 3 further includes a bending plate 31, one end of the ground cable 5 is connected to the bending plate 31, and the other end is connected to the angle bending plate 12. The grounding cable 5 grounds the electrical equipment through the angle plate 12 and the bending plate 31, when the electrical equipment generates fault current, the fault current enters the grounding cable 5 through the angle plate 12, then enters the bending plate 31 through the grounding cable 5, and finally enters a grounding system through the conductive roller 4.

Specifically, as shown in fig. 1, the grounding device further includes a rail sweeping device 6 disposed on the roller body fixing frame 3, and by means of the rail sweeping device 6, in the moving process of the grounding device, the obstacles on the track surface 01 of the track can be removed, so that the abrasion of the obstacles on the conductive roller 4 is reduced, the service life of the conductive roller 4 is prolonged, and meanwhile, the problem of the influence on the grounding effect caused by some insulating obstacles is avoided.

It should be noted that one or more rail sweeping devices 6 may be disposed on the roller holder 3, and when the rail sweeping devices 6 are disposed in a plurality of ways, a more efficient sweeping effect may be achieved, and therefore, the number of the rail sweeping devices 6 is not limited in the present application.

In one possible implementation, as shown in fig. 2, the grounding device comprises two rail-sweeping devices 6, wherein the rail-sweeping devices 6 are rail-sweeping plates. Two sweep the both ends of rail board through bolted connection at the 3 horizontal direction of roll body mount, at roll body mount 3's removal in-process, sweep the rail board and can carry out timely cleaing away to the barrier on orbital track face 01, prevent that the barrier from producing the problem of too much wearing and tearing or influence ground connection effect to conducting roller 4.

It should be noted that, sweep rail device 6 also can be for sweeping rail brush 61, sweep rail brush 61 and can carry out more accurate clearance to the barrier, the staff only need in time sweep rail brush 61 change can, consequently, this application does not further prescribe a limit to the concrete structure of sweeping rail device 6.

As a second aspect of the present application, as shown in fig. 1, the present application provides a mobile device, including the grounding device for a track mobile device, and the mobile device has the grounding device, so that the mounting frame 1, the roller fixing frame 3, the pressing mechanism 2 and the conductive roller 4 in the grounding device can be used to make the grounding device of the mobile device have a longer service life, and have the advantage of better grounding effect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An earthing device for a track mobile apparatus for electrically connecting the mobile apparatus with a track, the earthing device comprising:

the mounting rack (1), one end of the mounting rack (1) in the vertical direction is connected with the mobile equipment;

the pressing mechanism (2), one end of the pressing mechanism (2) is connected with the mounting rack (1);

the roller body fixing frame (3), the roller body fixing frame (3) is connected with the other end of the pressing mechanism (2);

the conductive roller (4) is arranged on the roller body fixing frame (3), and the conductive roller (4) is in contact with a track surface (01) of a track; and

one end of the grounding cable (5) is connected with the mounting frame (1), and the other end of the grounding cable (5) is connected with the roller body fixing frame (3);

the pressing mechanism (2) is used for applying a first acting force to the conductive roller (4), and the direction of the first acting force is the vertical direction from the center of the conductive roller (4) to a track surface (01) of the track.

2. The grounding device for track moving equipment according to claim 1, characterized in that the pressing mechanism (2) comprises:

one end of the connecting rod device (21) is connected with one end of the mounting rack (1) in the horizontal direction, and the other end of the connecting rod device (21) is connected with the roller body fixing rack (3); and

the torsion spring (22), torsion spring (22) cover is established linkage (21) is close to the one end of mounting bracket (1).

3. The grounding device for track-moving apparatuses according to claim 2, characterized in that said linkage means (21) comprise:

one end of the first connecting rod (211) is connected with one end of the mounting rack (1) in the horizontal direction;

one end of the second connecting rod (212) is connected with the roller body fixing frame (3);

the first connecting rod (211) and the second connecting rod (212) are connected through a stud;

the torsion spring (22) is sleeved at one end, close to the mounting rack (1), of the first connecting rod (211).

4. The grounding device for track-moving apparatuses according to claim 3, characterized in that said linkage means (21) further comprises: and a cross bar (213) disposed in the middle of the second link (212).

5. The grounding device for track mobile equipment according to claim 1, characterized in that one end of the mounting bracket (1) in the vertical direction is connected with the mobile equipment through a stud, wherein the mounting bracket (1) comprises:

the bolt penetrates through the rubber fixing block (11) and is connected with the angle folding plate (12).

6. The grounding device for a rail mobile apparatus according to claim 5, wherein the roller body fixing frame (3) comprises a bending plate (31), one end of the grounding cable (5) is connected with the bending plate (31), and the other end of the grounding cable (5) is connected with the angle plate (12).

7. The grounding device for track moving equipment according to claim 5, characterized in that said mounting frame (1) further comprises:

the groove plate (13) is used for installing the rubber fixing block (11), and the groove plate (13) is connected with the first connecting rod (211) so as to realize connection of the first connecting rod (211) and one end of the mounting rack (1) in the horizontal direction; and the iron plates (131) are arranged in the groove plates (13) and on two sides of the rubber fixing block (11), and the groove plates (13) are connected with one end of the torsion spring (22).

8. The grounding device for a track moving apparatus of claim 1, wherein the grounding device further comprises: the rail sweeping device (6) is arranged on the roller body fixing frame (3), and the rail sweeping device (6) is used for clearing obstacles on a rail surface (01) of the rail.

9. The grounding device for a track moving equipment according to claim 8, characterized in that the grounding device comprises two of the rail-sweeping devices (6), wherein the rail-sweeping devices (6) are rail-sweeping plates or rail-sweeping brushes (61).

10. A track moving apparatus comprising the grounding device for a track moving apparatus as claimed in any one of claims 1 to 9.