A maintenance device for self-locking rail clamps

Abstract

This utility model belongs to the technical field of self-locking rail clamp maintenance, and discloses a maintenance device for self-locking rail clamps. The maintenance device includes: a motor; a transmission shaft connected to the motor shaft via a coupling; a driving bevel gear located at the end of the transmission shaft away from the coupling; a driven bevel gear meshing with the driving bevel gear; the driven bevel gear having an internal thread structure; and a support rod with an external thread structure on its outer circumference; the support rod is disposed within the driven bevel gear. By applying the maintenance device for self-locking rail clamps provided by this utility model, the existing method of using hand-operated hoists and gantry cranes for maintenance of self-locking rail clamps is replaced, thereby reducing equipment maintenance time, improving work efficiency, and reducing manual intervention, effectively avoiding safety accidents caused by manual lifting operations.

Description

Technical Field

[0001] This utility model belongs to the field of self-locking rail clamp maintenance technology, specifically, it relates to a maintenance device for self-locking rail clamps. Background Technology

[0002] A self-locking rail clamp is a device that uses the friction between the clamp and the rail to lock the rail sliding equipment onto the rail, preventing the rail sliding equipment from sliding along the rail and derailing under strong winds. It is usually connected to the bottom structure of the rail sliding equipment. When the rail clamp is working, the clamps hold the two sides of the rail to prevent sliding.

[0003] When the hydraulic system of a self-locking rail clamp needs maintenance, we need to adjust the self-locking rail clamp to the maintenance state, but the hydraulic system cannot operate at this time. The existing design uses a gantry crane and a hand-operated hoist to control the status of the rail clamp. This maintenance method is not only time-consuming and inefficient, but also inevitably carries unpredictable construction risks due to manual operation.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology in terms of low maintenance efficiency and high maintenance risk of self-locking rail clamps. The purpose is to provide a maintenance device for self-locking rail clamps that is faster, more efficient and reduces construction risks.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is: a maintenance device for self-locking rail clamps, comprising:

[0007] Electric motor;

[0008] A drive shaft is connected to the rotating shaft of the motor via a coupling.

[0009] A drive bevel gear, wherein the drive bevel gear is disposed at the end of the drive shaft away from the coupling;

[0010] A driven bevel gear meshes with a driving bevel gear; the driven bevel gear has an internal thread structure.

[0011] A support rod, the outer periphery of which is provided with an external thread structure that is compatible with the internal thread structure of the driven bevel gear.

[0012] According to one embodiment of the present invention, the maintenance device further includes: a gearbox, wherein the drive shaft is provided with one end of the driving bevel gear, and the driven bevel gear is disposed in the gearbox;

[0013] The axis of the driven bevel gear is perpendicular to the axis of the driving bevel gear.

[0014] According to one embodiment of the present invention, the gearbox is further provided with a bearing, which is fixedly disposed in the gearbox.

[0015] According to one embodiment of the present invention, the bearing is a planar thrust bearing.

[0016] According to one embodiment of the present invention, the bearing is disposed at the large end of the driven bevel gear, and / or disposed at the small end of the driven bevel gear.

[0017] According to one embodiment of the present invention, the bearing includes an upper ring, a lower ring, and rolling elements;

[0018] For the bearing located at the small end of the driven bevel gear, the upper ring of the bearing is connected to the inner wall of the gearbox, and the lower ring of the bearing is connected to the small end of the driven bevel gear.

[0019] According to one embodiment of the present invention, the bearing includes an upper ring, a lower ring, and rolling elements;

[0020] For the bearing located at the large end of the driven bevel gear, the upper ring of the bearing is connected to the large end of the driven bevel gear, and the lower ring of the bearing is connected to the inner wall of the gearbox.

[0021] According to one embodiment of the present invention, the maintenance device further includes a bell cover, which is disposed on the outer periphery of the coupling.

[0022] According to one embodiment of the present invention, the self-locking rail clamp includes a frame, and the base of the motor is bolted to the frame.

[0023] According to one embodiment of the present invention, the self-locking rail clamp further includes: a counterweight shaft, and the end of the support rod away from the driven bevel gear abuts against the counterweight shaft.

[0024] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0025] By applying the maintenance device for self-locking rail clamps provided by this utility model, the existing scheme of using hand-operated hoists and gantry cranes for rail clamp maintenance is replaced, thereby reducing equipment maintenance time, improving work efficiency, and effectively avoiding safety accidents caused by lifting operations by reducing manual intervention.

[0026] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0027] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0028] Figure 1 This is a schematic diagram of the structure of a maintenance device applied to a self-locking rail clamp in an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the rail clamp in the maintenance state in an embodiment of this utility model;

[0030] Figure 3 This is a schematic diagram of the rail clamp in the working state in an embodiment of this utility model.

[0031] Description of main components in the diagram:

[0032] 1. Gearbox; 2. Bearing; 3. Support rod; 4. Driven bevel gear; 5. Driving bevel gear; 6. Drive shaft; 7. Coupling; 8. Motor; 9. Counterweight shaft; 10. Frame.

[0033] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] like Figures 1 to 3 As shown, the present invention provides a maintenance device for a self-locking rail clamp, comprising:

[0038] Motor 8;

[0039] A drive shaft 6 is connected to the rotating shaft of the motor 8 via a coupling 7.

[0040] A drive bevel gear 5 is disposed at the end of the drive shaft 6 away from the coupling 7;

[0041] Driven bevel gear 4 meshes with driving bevel gear 5; the driven bevel gear 4 has an internal thread structure.

[0042] The support rod 3 has an external thread structure on its outer periphery that is adapted to the internal thread structure of the driven bevel gear 4; the support rod 3 is disposed in the driven bevel gear 4.

[0043] By applying the maintenance device for self-locking rail clamps provided by this utility model, the existing scheme of erecting gantry frames and setting up manual hoists can be replaced. The mechanical control reduces equipment maintenance time and improves work efficiency. At the same time, by reducing direct human intervention, the safety accidents caused by lifting operations are effectively avoided.

[0044] Please see the appendix Figure 1 In one specific embodiment of this invention, the maintenance device further includes: a gearbox 1, wherein the drive shaft 6 is provided with one end of the driving bevel gear 5, and the driven bevel gear 4 is rotatably disposed in the gearbox 1 along its own axis;

[0045] The axis of the driven bevel gear 4 is perpendicular to the axis of the driving bevel gear 5.

[0046] In this invention, by setting the gearbox 1, the meshing transmission (driving and driven) bevel gears are in a relatively closed environment, preventing impurities from entering and affecting the gear meshing.

[0047] In one specific embodiment of this example, the gearbox 1 is a cuboid structure, and the gearbox 1 is provided with a cylindrical or columnar through slot that extends through its upper and lower ends. The support rod 3 is at least partially disposed in the through slot of the gearbox 1.

[0048] In one specific embodiment of this example, the outer diameter of the support rod 3 is smaller than the minimum inner diameter of the through groove;

[0049] Specifically, when the through groove is a cylindrical structure, the outer diameter of the support rod 3 (externally threaded structure) is smaller than the diameter of the through groove;

[0050] Specifically, when the through groove is a cylindrical structure, the outer diameter of the support rod 3 (external thread structure) is smaller than the diameter of the largest inscribed circle that can be accommodated in the through groove.

[0051] Please see the appendix Figure 1 In one specific embodiment of this example, the gearbox 1 is further provided with a bearing 2, which is fixedly disposed in the gearbox 1.

[0052] In one specific embodiment of this invention, the bearing 2 is a planar thrust bearing (a planar thrust bearing is a conventionally used component in the art, and its specific structure is not described in detail in this application).

[0053] Please see the appendix Figure 1 In one specific embodiment of this example, the bearing 2 is disposed at the large end of the driven bevel gear 4, and / or disposed at the small end of the driven bevel gear 4.

[0054] In one specific embodiment of this invention, the bearing 2 includes an upper ring, a lower ring, and rolling elements;

[0055] For the bearing 2 located at the small end of the driven bevel gear 4, the upper ring of the bearing 2 is connected to the inner wall of the gearbox 1, and the lower ring of the bearing 2 is connected to the small end of the driven bevel gear.

[0056] In another specific embodiment of this invention, the bearing 2 includes an upper ring, a lower ring, and rolling elements;

[0057] For the bearing 2 located at the large end of the driven bevel gear 4, the upper ring of the bearing 2 is connected to the large end of the driven bevel gear, and the lower ring of the bearing 2 is connected to the inner wall of the gearbox 1.

[0058] In one specific embodiment of this example, the bearing 2 further includes a cage, which evenly separates the rolling elements, guides the rolling elements to roll on the correct track, prevents the rolling elements from colliding and rubbing against each other, and also helps to maintain the positional accuracy of the rolling elements, thereby improving the operational stability and reliability of the bearing.

[0059] In one specific embodiment of this invention, the maintenance device further includes a bell jar, which is disposed on the outer periphery of the coupling 7.

[0060] In this invention, by setting the bell cover, the coupling 7 is enclosed to prevent the coupling from being exposed and to avoid the occurrence of safety accidents.

[0061] Please see the appendix Figure 2 and attached Figure 3 In one specific embodiment of this example, the self-locking rail clamp includes: a frame 10, and the base of the motor 8 is bolted to the frame 10.

[0062] Please see the appendix Figure 2 and attached Figure 3 In one specific embodiment of this example, the self-locking rail clamp further includes: a counterweight shaft 9, and the end of the support rod 3 away from the driven bevel gear 4 abuts against the counterweight shaft 9;

[0063] When the self-locking rail clamp is in working condition, the horizontal height of the counterweight shaft 9 is less than the horizontal height of the counterweight shaft 9 when the self-locking rail clamp is under maintenance.

[0064] In this invention, the support rod 3 acts directly on the counterweight shaft 9, directly outputting lifting power and changing the state of the self-locking rail clamp.

[0065] In one specific embodiment of this example, the axis of the support rod 3 is perpendicular to the axis of the counterweight shaft 9;

[0066] The support rod 3 is provided with a support part (not shown in the figure) at one end near the counterweight shaft 9. The upper end surface of the support part (the side surface near the end of the counterweight shaft) is arc-shaped, and the arc shape corresponds to the arc shape of the outer periphery of the counterweight shaft 9.

[0067] The supporting part supports the counterweight shaft 9.

[0068] The working principle of the maintenance device provided in this application is as follows:

[0069] When the hydraulic system of the self-locking rail clamp needs to be repaired, the self-locking rail clamp needs to be switched to the repair state. However, the hydraulic cylinder cannot work at this time. Therefore, the repair device provided in this application is required to lift the rail clamp to the repair state.

[0070] At this time, the motor 8 drives the active bevel gear 5, the active bevel gear 5 drives the driven bevel gear 4, and after the driven bevel gear 4 starts to rotate, it drives the support rod 3 to move vertically upward through the threaded connection. By pushing the counterweight shaft 9, the rail clamp is moved to the maintenance state.

[0071] When the limit is triggered (the limit can be the pre-set end position of the support rod 3 stroke or the time control of the motor 8 timed operation), the motor 8 stops working, and the rail clamp is maintained in the maintenance state by the thread self-locking between the support rod 3 and the driven bevel gear 4.

[0072] After the maintenance work is completed, start motor 8 to reverse, causing support rod 3 to descend. As support rod 3 descends, rail clamp also descends to the clamping state, triggering the limit switch (the limit can be the pre-set end position of support rod 3's stroke, or it can be determined by the time control of motor 8's timed operation). After this, motor 8 stops working, and the maintenance work of rail clamp is completed.

[0073] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A maintenance device for self-locking rail clamps, characterized in that, include: Motor (8); A drive shaft (6) is connected to the rotating shaft of the motor (8) via a coupling (7). A drive bevel gear (5) is disposed at one end of the drive shaft (6) away from the coupling (7); Driven bevel gear (4), which meshes with the driving bevel gear (5); the driven bevel gear (4) is provided with an internal thread structure; The support rod (3) has an external thread structure on its outer periphery that is adapted to the internal thread structure of the driven bevel gear (4); the support rod (3) is disposed in the driven bevel gear (4).

2. The maintenance device for a self-locking rail clamp according to claim 1, characterized in that, The maintenance device further includes: a gearbox (1), the transmission shaft (6) is provided with one end of the driving bevel gear (5), and the driven bevel gear (4) is provided in the gearbox (1); The axis of the driven bevel gear (4) is perpendicular to the axis of the driving bevel gear (5).

3. The maintenance device for a self-locking rail clamp according to claim 2, characterized in that, The gearbox (1) is also provided with a bearing (2), which is fixedly installed in the gearbox (1).

4. The maintenance device for a self-locking rail clamp according to claim 3, characterized in that, The bearing (2) is a planar thrust bearing.

5. A maintenance device for a self-locking rail clamp according to claim 4, characterized in that, The bearing (2) is disposed at the large end of the driven bevel gear (4) and / or at the small end of the driven bevel gear (4).

6. A maintenance device for a self-locking rail clamp according to claim 5, characterized in that, The bearing (2) includes an upper ring, a lower ring, and rolling elements; For the bearing (2) located at the small end of the driven bevel gear (4), the upper ring of the bearing (2) is connected to the inner wall of the gearbox (1), and the lower ring of the bearing (2) is connected to the small end of the driven bevel gear.

7. A maintenance device for a self-locking rail clamp according to claim 5, characterized in that, The bearing (2) includes an upper ring, a lower ring, and rolling elements; For the bearing (2) located at the large end of the driven bevel gear (4), the upper ring of the bearing (2) is connected to the large end of the driven bevel gear, and the lower ring of the bearing (2) is connected to the inner wall of the gearbox (1).

8. A maintenance device for a self-locking rail clamp according to any one of claims 1-7, characterized in that, The maintenance device also includes a bell jar, which is disposed on the outer periphery of the coupling (7).

9. A maintenance device for a self-locking rail clamp according to claim 8, characterized in that, The self-locking rail clamp includes a frame (10), and the base of the motor (8) is bolted to the frame (10).

10. A maintenance device for a self-locking rail clamp according to claim 9, characterized in that, The self-locking rail clamp also includes a counterweight shaft (9), and the end of the support rod (3) away from the driven bevel gear (4) abuts against the counterweight shaft (9).

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