Maintenance device

Abstract

The utility model discloses a maintenance device which is used for checking and maintaining a running gear of a railway vehicle, and the running gear is placed on a track and comprises wheels. The maintenance device comprises a lifting mechanism and a driving mechanism; the lifting mechanism is fixed on the ground to jack the wheels during use; the driving mechanism is fixed to a rail during use and provided with an output shaft, and the outer shaft face of the output shaft is used for making contact with the outer wheel face of a wheel so as to drive the wheel to rotate. According to the technical scheme, the inspection and maintenance efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle maintenance equipment, in particular to a maintenance device. Background Art

[0002] When a rail vehicle is undergoing maintenance work on the running gear at the bottom, the entire vehicle needs to be powered off for safety reasons. The rail vehicle is first transported to a rotating wheel workshop using a trailer, and then a lifting mechanism is used to lift the rail vehicle so that the wheels of the running gear are suspended in the air. Only then can the gearbox, traction motor, wheels and other components of the rail vehicle be rotated for corresponding inspection and maintenance work, resulting in low inspection and maintenance efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a maintenance device, aiming to improve the inspection and maintenance efficiency.

[0004] To achieve the above-mentioned purpose, the utility model proposes a maintenance device for inspecting and maintaining a running gear of a rail vehicle, wherein the running gear is placed on a track and includes wheels. The maintenance device includes:

[0005] A lifting mechanism, fixed to the ground to lift the wheel when in use;

[0006] The driving mechanism is fixed to the track when in use. The driving mechanism is provided with an output shaft. The outer shaft surface of the output shaft is used to contact the outer wheel surface of the wheel to drive the wheel to rotate.

[0007] In one embodiment of the present invention, the driving mechanism comprises:

[0008] A driving motor provided with the output shaft;

[0009] A fixer is connected to the driving motor, and the fixer is used to be detachably mounted on the track.

[0010] In one embodiment of the present invention, the fixator comprises:

[0011] A clamping portion, the clamping portion is used to clamp or release the track;

[0012] A bearing part is connected to the clamping part, and the driving motor is installed on the bearing part.

[0013] In an embodiment of the present invention, the thickness of the bearing portion gradually decreases from a side close to the clamping portion to a side far from the clamping portion.

[0014] In one embodiment of the present invention, the clamping portion comprises:

[0015] A first clamping section, wherein the bearing portion is connected to one side of the first clamping section;

[0016] a second clamping section, the second clamping section being arranged on a side of the first clamping section away from the bearing portion;

[0017] An adjusting member is provided through the second clamping section and inserted into the first clamping section, and is used to drive the second clamping section to move toward or away from the first clamping section, so that the clamping portion clamps or releases the track when in use.

[0018] In an embodiment of the utility model, the output shaft sleeve is provided with a shaft sleeve, the shaft sleeve is a flexible member, and the outer axial surface of the shaft sleeve is in contact with the outer wheel surface of the wheel.

[0019] In an embodiment of the present invention, the driving mechanism is disposed on at least one side of the wheel to drive the wheel.

[0020] In one embodiment of the utility model, two lifting mechanisms are provided, and each lifting mechanism is used to lift the wheels on one side.

[0021] In one embodiment of the present invention, the lifting mechanism comprises:

[0022] A lifting structure, used for lifting the wheel;

[0023] A support base is connected to the bottom of the jacking structure, and the support base is used to support the jacking structure.

[0024] In an embodiment of the present invention, the lifting structure is a hydraulic pump, a pneumatic pump or a screw lifting structure.

[0025] The maintenance device proposed by the utility model directly fixes the lifting mechanism on the ground when inspecting and maintaining the running gear of the rail vehicle, so as to lift the wheel by using the lifting mechanism so that the wheel is suspended above the track, and the driving mechanism is installed on the track so that the outer shaft surface of the output shaft of the driving mechanism contacts the outer wheel surface of the wheel. In this way, when the driving mechanism works, the wheel can be driven to rotate through the output shaft, thereby driving the gear box and the traction motor to rotate, so as to perform corresponding inspection and maintenance work.

[0026] Therefore, this scheme proposes a portable maintenance device, which eliminates the need to first use a trailer to transport the rail vehicle to the rotary wheel workshop and then use a lifting mechanism to lift the rail vehicle, effectively improving the inspection and maintenance efficiency and reducing the use of trailers, thereby reducing the equipment cost brought about by the use of trailers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the maintenance device of the utility model when inspecting and maintaining a rail vehicle;

[0029] Figure 2 This is a structural schematic diagram of a lifting mechanism in an embodiment of the maintenance device of the utility model;

[0030] Figure 3 It is a schematic diagram of the structure of a fixing device in one embodiment of the maintenance device of the utility model;

[0031] Figure 4 It is a structural schematic diagram of the driving structure in one embodiment of the maintenance device of the utility model.

[0032] Description of Figure Numbers:

[0033] Label name Label name 100 Maintenance device 212 Load-bearing part 10 Lifting mechanism 22 Drive motor 11 Support base 221 Output shaft 12 Lifting structure 222 Bushing 20 Driving mechanism 210 track 21 Fixer 220 Walking Department 211 Clamping part 2201 wheel 2111 First clamping section 2201a Support 2112 Second clamping section 2202 Gearbox 2113 Adjustment parts 2203 Traction motor

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] The present invention provides a maintenance device 100, aiming to improve inspection and maintenance efficiency.

[0039] Combined with reference Figures 1 to 4 In one embodiment of the maintenance device 100 of the utility model, the maintenance device 100 is used to inspect and maintain a running gear 220 of a rail vehicle, the running gear 220 is placed on a track 210, and the running gear 220 includes wheels 2201;

[0040] The maintenance device 100 includes a lifting mechanism 10 and a driving mechanism 20; the lifting mechanism 10 is fixed to the ground to lift the wheel 2201 when in use; the driving mechanism 20 is fixed to the track 210 when in use, and the driving mechanism 20 is provided with an output shaft 221, and the outer shaft surface of the output shaft 221 is used to contact the outer wheel surface of the wheel 2201 to drive the wheel 2201 to rotate.

[0041] It can be understood that when the maintenance device 100 proposed in the utility model inspects and maintains the running gear 220 of the rail vehicle, the lifting mechanism 10 is directly fixed on the ground, and the lifting mechanism 10 is used to lift the wheel 2201 so that the wheel 2201 is suspended above the track 210, and the driving mechanism 20 is installed on the track 210 so that the outer shaft surface of the output shaft 221 of the driving mechanism 20 contacts the outer wheel surface of the wheel 2201. In this way, when the driving mechanism 20 works, the wheel 2201 can be driven to rotate through the output shaft 221, and then the gear box 2202 and the traction motor 2203 are driven to rotate, so as to perform corresponding inspection and maintenance work.

[0042] Therefore, this solution proposes a portable maintenance device 100, which eliminates the need to first use a trailer to transport the rail vehicle to a rotary wheel workshop and then use a lifting mechanism 10 to lift the rail vehicle, thereby effectively improving the inspection and maintenance efficiency and reducing the use of trailers, thereby reducing the equipment cost brought about by the use of trailers.

[0043] In this embodiment, when the driving mechanism 20 drives the wheels 2201, the gear box 2202, and the traction motor 2203 of the running gear 220 to rotate, the appearance inspection of each rotating body in the circumferential direction, bearing lubrication, vibration detection, etc. can be performed. It should be noted that when the rail vehicle is operating normally, the traction motor 2203 is used to drive the gear box 2202 to work, and then the gear box 2202 drives the wheels 2201 to rotate, so that the wheels 2201 can travel on the track 210.

[0044] It should be noted that, when the running gear 220 of the rail vehicle needs to be inspected and maintained, the lifting mechanism 10 needs to be installed on the ground and the driving mechanism 20 needs to be installed on the track 210. After the inspection and maintenance is completed, the lifting mechanism 10 and the driving mechanism 20 can be removed to avoid the lifting mechanism 10 and the driving mechanism 20 affecting the normal operation of the rail vehicle.

[0045] In actual application, the driving mechanism 20 can be detachably mounted on the rail 210 by clamping, adsorption, etc., so as to realize convenient disassembly and assembly of the driving mechanism 20 .

[0046] In actual application, when the driving mechanism 20 is installed on the track 210, it can be located in front of the wheel 2201 or in the rear of the wheel 2201, as long as the output shaft 221 of the driving mechanism 20 can drive the suspended wheel 2201 to rotate. It should be noted that the direction from the front to the rear of the wheel 2201 is the direction in which the wheel 2201 moves on the track 210.

[0047] In some embodiments, the lifting mechanism 10 can directly lift the main shaft that passes through the wheel 2201 . When the lifting mechanism 10 lifts the main shaft, the wheel 2201 will be suspended above the track 210 .

[0048] In other embodiments, a support member 2201a is provided on one side of the wheel 2201 , and the lifting mechanism 10 is used to abut the support member 2201a to lift the wheel 2201 . When the lifting mechanism 10 lifts the support member 2201a , the wheel 2201 is suspended above the track 210 .

[0049] It should be noted that, since a bearing is provided inside the support member 2201a on one side of the wheel 2201, when the lifting mechanism 10 lifts the wheel 2201 through the support member 2201a, the rotation of the wheel 2201 is not affected.

[0050] Optionally, see Figure 1 , Figure 3 , Figure 4In one embodiment of the maintenance device 100 of the present utility model, the driving mechanism 20 includes a fixture 21 and a driving motor 22; the driving motor 22 is provided with an output shaft 221; the fixture 21 is connected to the driving motor 22, and the fixture 21 is used to be detachably mounted on the track 210.

[0051] With such arrangement, when inspecting and maintaining the running gear 220 of the rail vehicle, the drive motor 22 can be fixed to the rail 210 by the fixer 21, so as to realize the convenient installation of the drive motor 22 and improve the installation reliability of the drive motor 22.

[0052] In actual application, the fixture 21 can be connected to the driving motor 22 by means of screws, buckles, etc., so as to ensure the connection reliability between the fixture 21 and the driving motor 22.

[0053] Furthermore, the holder 21 may be connected to the bottom of the driving motor 22 or to one side of the driving motor 22 .

[0054] Optionally, see Figure 1 , Figure 3 In one embodiment of the maintenance device 100 of the present utility model, the fixture 21 includes a clamping portion 211 and a bearing portion 212 ; the clamping portion 211 is used to clamp or release the track 210 ; the bearing portion 212 is connected to the clamping portion 211 , and the driving motor 22 is installed on the bearing portion 212 .

[0055] With such a configuration, the clamping portion 211 can be used to clamp and fix the fixture 21 on the rail 210 to achieve convenient disassembly and assembly of the fixture 21, and the drive motor 22 can be installed on the bearing portion 212, and the drive motor 22 can be effectively supported by the bearing portion 212 to ensure the installation reliability of the drive motor 22.

[0056] In actual application, the bearing portion 212 can be integrally formed with the clamping portion 211, or connected to the clamping portion 211 by screws, bonding, etc. Optionally, the bearing portion 212 and the clamping portion 211 are integrally formed structures, which can not only ensure the strength between the bearing portion 212 and the clamping portion 211 to ensure the supporting strength of the bearing portion 212 for the driving motor 22, but also simplify the preparation process of the bearing portion 212 and the clamping portion 211.

[0057] Optionally, see Figure 3 In one embodiment of the maintenance device 100 of the present invention, the thickness of the bearing portion 212 gradually decreases from a side close to the clamping portion 211 to a side away from the clamping portion 211 .

[0058] With such configuration, the thickness of the bearing portion 212 closer to the outside can be made thinner, thereby improving the supporting strength of the bearing portion 212 for the driving motor 22 .

[0059] Optionally, see Figure 3 In one embodiment of the maintenance device 100 of the utility model, the clamping portion 211 includes a first clamping section 2111, a second clamping section 2112 and an adjusting member 2113; the bearing portion 212 is connected to one side of the first clamping section 2111; the second clamping section 2112 is arranged on a side of the first clamping section 2111 away from the bearing portion 212; the adjusting member 2113 is passed through the second clamping section 2112 and inserted into the first clamping section 2111, and is used to drive the second clamping section 2112 to move toward or away from the first clamping section 2111, so that the clamping portion 211 can clamp or release the track 210 when in use.

[0060] With such arrangement, when installing the fixture 21, the second clamping section 2112 can be first driven by the adjusting member 2113 to move away from the first clamping section 2111, so that the first clamping section 2111 and the second clamping section 2112 can be smoothly sleeved on the outside of the track 210, and then the second clamping section 2112 can be driven by the adjusting member 2113 to move close to the first clamping section 2111, so that the first clamping section 2111 and the second clamping section 2112 are tightened to clamp the track 210. When disassembling the fixture 21, the second clamping section 2112 can be driven by the adjusting member 2113 to move away from the first clamping section 2111, so that the first clamping section 2111 and the second clamping section 2112 release the track 210, so that the first clamping section 2111 and the second clamping section 2112 can be smoothly removed.

[0061] Exemplarily, the adjustment member 2113 may be a bolt.

[0062] In some embodiments, the first clamping section 2111 and the second clamping section 2112 may both be roughly U-shaped structures, which can be compatible with the shape of the track 210 and can improve the stability of the first clamping section 2111 and the second clamping section 2112 clamping the track 210.

[0063] Optionally, see Figure 4 In one embodiment of the maintenance device 100 of the present utility model, the output shaft 221 is sleeved with a shaft sleeve 222 , the shaft sleeve 222 is a flexible member, and the outer shaft surface of the shaft sleeve 222 contacts the outer wheel surface of the wheel 2201 .

[0064] With such arrangement, when the driving mechanism 20 is working, the wheel 2201 can be driven to rotate under the contact between the outer axial surface of the sleeve 222 and the outer wheel surface of the wheel 2201. When working repeatedly, the sleeve 222 will be worn, so the sleeve 222 can be directly replaced without replacing the output shaft 221 or even the entire driving mechanism 20. In addition, by using a flexible member as the sleeve 222, the friction between the outer axial surface of the sleeve 222 and the outer wheel surface of the wheel 2201 can be increased, so as to smoothly drive the wheel 2201 to rotate.

[0065] In actual application, the shaft sleeve 222 and the output shaft 221 can be fixed by interference fit, spline fit, etc. to prevent relative sliding between the shaft sleeve 222 and the output shaft 221.

[0066] Furthermore, the shaft sleeve 222 may be sleeved on the end of the output shaft 221 , may be sleeved on the middle of the output shaft 221 , or may be sleeved on both the end and the middle of the output shaft 221 .

[0067] In actual application, the material of the shaft sleeve 222 can be flexible materials such as rubber, elastic plastic, grinding wheel, etc.

[0068] Optionally, see Figure 4 In one embodiment of the maintenance device 100 of the utility model, the sleeve 222 is a rubber member. In this way, by using a rubber member as the sleeve 222, not only the cost is low, but also the friction between the outer shaft surface of the sleeve 222 and the outer wheel surface of the wheel 2201 can be effectively increased.

[0069] Optionally, see Figure 1 In one embodiment of the maintenance device 100 of the utility model, the driving mechanism 20 is disposed on at least one side of the wheel 2201 to drive the wheel 2201. Specifically, the driving mechanism 20 can be disposed on one side of the wheel 2201, or on two opposite sides of the wheel 2201, that is, the driving mechanism 20 is correspondingly disposed on both opposite sides of the wheel 2201, so that the output shaft 221 of at least one driving mechanism 20 can be used to drive the wheel 2201 to rotate, so as to smoothly drive the wheel 2201 to rotate.

[0070] Optionally, see Figure 1 In one embodiment of the maintenance device 100 of the present invention, two lifting mechanisms 10 are provided, and each lifting mechanism 10 is used to lift the wheel 2201 on one side.

[0071] With such arrangement, since the running part is usually provided with two wheels, a linkage rod is provided between the two wheels 2201 to realize connection. Therefore, under the action of the two lifting mechanisms 10, the wheels 2201 on both sides can be lifted synchronously to avoid failure of the connection between the wheels 2201 on both sides when the wheels 2201 on both sides are out of sync.

[0072] In some embodiments, a support member 2201 a is provided on a side of each wheel 2201 away from the other wheel 2201 , and each lifting mechanism 10 is used to abut against a support member 2201 a to lift one side of the wheel 2201 .

[0073] Optionally, see Figure 2In one embodiment of the maintenance device 100 of the utility model, the lifting mechanism 10 includes a support base 11 and a lifting structure 12; the lifting structure 12 is used to lift the wheel 2201; the support base 11 is connected to the bottom of the lifting structure 12, and the support base 11 is used to support the lifting structure 12.

[0074] With such an arrangement, when inspecting and maintaining the running gear 220 of the rail vehicle, the lifting mechanism 10 is first installed on the ground through the supporting base 11 to ensure the installation stability of the lifting mechanism 10, and the jacking structure 12 is installed on the top of the supporting base 11. The jacking structure 12 can be installed at a higher position to make the jacking structure 12 closer to the wheel 2201. The jacking height of the jacking structure 12 can be reduced when the wheel 2201 is lifted, which can improve the lifting stability of the jacking structure 12 on the wheel 2201.

[0075] In actual application, the lifting structure 12 can specifically be a hydraulic pump, a pneumatic pump, a screw lifting structure or other devices, as long as it can lift the wheel 2201.

[0076] Furthermore, the lifting structure 12 is preferably a manually operable hydraulic pump, such as Figure 2 As shown, the hydraulic pump can manually apply pressure to the lifting structure 12, i.e., the hydraulic pump, by operating the rocker to complete the lifting and lowering adjustment of the wheel 2201.

[0077] To sum up, the utility model proposes a portable maintenance device for the running part of a rail vehicle. By using the utility model, there is no need to use a trailer to transport the rail vehicle to a rotary wheel workshop. At the same time, the use of a lifting mechanism to lift the rail vehicle can effectively improve the inspection and maintenance efficiency. The utility model can effectively reduce the corresponding material and labor costs.

[0078] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A maintenance device for inspecting and maintaining a running gear of a rail vehicle, wherein the running gear is placed on a track and includes wheels, and is characterized in that: The maintenance device comprises: A lifting mechanism, fixed to the ground to lift the wheel when in use; The driving mechanism is fixed to the track when in use. The driving mechanism is provided with an output shaft. The outer shaft surface of the output shaft is used to contact the outer wheel surface of the wheel to drive the wheel to rotate.

2. The maintenance device according to claim 1, characterized in that: The driving mechanism comprises: A driving motor provided with the output shaft; A fixer is connected to the driving motor, and the fixer is used to be detachably mounted on the track.

3. The maintenance device according to claim 2, characterized in that: The fixer comprises: A clamping portion, the clamping portion is used to clamp or release the track; A bearing part is connected to the clamping part, and the driving motor is installed on the bearing part.

4. The maintenance device according to claim 3, characterized in that: The thickness of the bearing portion gradually decreases from a side close to the clamping portion to a side far from the clamping portion.

5. The maintenance device according to claim 3, characterized in that: The clamping portion comprises: A first clamping section, wherein the bearing portion is connected to one side of the first clamping section; a second clamping section, the second clamping section being arranged on a side of the first clamping section away from the bearing portion; An adjusting member is provided through the second clamping section and inserted into the first clamping section, and is used to drive the second clamping section to move toward or away from the first clamping section, so that the clamping portion clamps or releases the track when in use.

6. The maintenance device according to any one of claims 1 to 5, characterized in that: The output shaft sleeve is provided with a shaft sleeve, the shaft sleeve is a flexible member, and the outer shaft surface of the shaft sleeve is used to contact the outer wheel surface of the wheel.

7. The maintenance device according to any one of claims 1 to 5, characterized in that: The driving mechanism is disposed on at least one side of the wheel to drive the wheel.

8. The maintenance device according to any one of claims 1 to 5, characterized in that: There are two lifting mechanisms, each of which is used to lift the wheels on one side.

9. The maintenance device according to any one of claims 1 to 5, characterized in that: The lifting mechanism comprises: A lifting structure, used for lifting the wheel; A support base is connected to the bottom of the jacking structure, and the support base is used to support the jacking structure.

10. The maintenance device according to claim 9, characterized in that: The lifting structure includes an oil pressure pump, a pneumatic pump or a screw lifting structure.

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