An axle gear box bearing dismounting system, dismounting method and railway vehicle

Abstract

The application relates to an axle gear box bearing dismounting system, a dismounting method and a railway vehicle. The dismounting system comprises: a bearing clamp fixed on a bearing to be dismounted; a lifting support device comprising two groups of left and right groups and used for supporting an axle; a gear box support device used for supporting a gear box; an axle clamping and moving device used for clamping the axle from both ends and moving the axle leftward and rightward in the X direction; a dismounting device matched with the bearing clamp and used for limiting the bearing clamp, realizing the dismounting of the bearing clamp and the bearing by moving the axle; a control device used for controlling the action of the above equipment; and a work platform, wherein the lifting support device, the gear box support device, the axle clamping and moving device, the dismounting device and the control device are fixedly installed on the work platform. The application has the advantages of simple structure, convenient operation, guaranteed dismounting quality, reduced scrap rate and reduced maintenance cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of rail vehicle manufacturing, and particularly relates to a bearing dismounting system for axle gear box, a dismounting method and a rail vehicle. BACKGROUND

[0002] During the maintenance of the gear box of the motor train unit, the gear box bearing needs to be dismounted and replaced. The existing equipment needs to dismount the large gear and one side bearing, and then dismount the other side bearing. During the dismounting of the large gear, due to the problems of the dismounting equipment and the dismounting process, the large gear hole may be scratched or the hole diameter may be out of tolerance during the secondary pressing, and in severe cases, the large gear may be scrapped, which greatly increases the maintenance cost. SUMMARY

[0003] The first main technical problem solved by the present application is to provide a bearing dismounting system for axle gear box, which is simple in structure, easy to operate, can ensure the dismounting quality, reduce the scrap rate and reduce the maintenance cost.

[0004] The second main technical problem solved by the present application is to provide a bearing dismounting method for axle gear box, which is easy to operate, can ensure the dismounting quality, reduce the scrap rate and reduce the maintenance cost.

[0005] The third main technical problem solved by the present application is to provide a rail vehicle for maintaining the axle gear box by using the bearing dismounting system and the dismounting method for axle gear box.

[0006] To solve the above-mentioned first technical problem, the basic idea of the technical solution adopted by the present application is:

[0007] A bearing dismounting system for axle gear box, comprising:

[0008] A bearing clamp fixed on the bearing to be dismounted;

[0009] A lifting support device, including left and right groups, for supporting the axle;

[0010] A gear box support device for supporting the gear box;

[0011] An axle clamping and moving device for clamping the axle from both ends and moving the axle left and right in the X direction;

[0012] A dismounting device cooperating with the bearing clamp for limiting the bearing clamp, and realizing the dismounting of the bearing clamp and the bearing by moving the axle;

[0013] A control device for controlling the operation of the above-mentioned equipment;

[0014] A work platform, on which the lifting support device, the gear box support device, the axle clamping and moving device, the dismounting device and the control device are fixedly installed.

[0015] Further, the dismounting device is two groups, arranged on both sides of the gear box supporting device, the bearing clamp is two, respectively fixed with the gear box two sides to be dismounted bearing, two groups of the dismounting device is respectively matched with two bearing clamps.

[0016] Further, the dismounting device includes dismounting support, the dismounting support is installed with the dismounting plate that can move up and down, the dismounting plate is selectively contacted with bearing clamp in X direction, the dismounting plate blocks the bearing clamp with axle movement.

[0017] Further, the dismounting support is composed of two side plates and an intermediate plate, the two side edges of the intermediate plate are connected with the two side plates, the dismounting plate is arranged in parallel with the intermediate plate, the intermediate plate has opposite U-shaped guide grooves on both sides, the two side edges of the dismounting plate are respectively embedded in the corresponding U-shaped guide grooves, the dismounting plate is connected with the dismounting lifting mechanism, which drives the dismounting plate to slide up and down along the U-shaped guide groove, and the dismounting lifting mechanism is installed on the operation platform.

[0018] Further, the intermediate plate has a first U-shaped opening for avoiding the axle, and the dismounting plate has a second U-shaped opening matched with the shape of the bearing clamp.

[0019] Further, the lifting supporting device includes a support rod assembly and a support lifting mechanism, the top end of the support rod assembly has a containing groove for containing the axle, the support lifting mechanism is installed on the operation platform, and the output end of the support lifting mechanism is connected with the support rod assembly.

[0020] Further, the support rod assembly includes a support seat and a support rod, the support seat is fixed on the operation platform, the support seat is a hollow columnar structure, and the bottom of the support rod is inserted into the support seat and slides up and down relative to the support seat.

[0021] Further, the gear box supporting device includes a base, the base is fixed on the operation platform, and at least two support columns are arranged on the upper surface of the base, the gear box is supported on the top of the support column, and the support column and the upper surface of the base are connected through a sliding pair along the X direction.

[0022] Further, the axle clamping and moving device includes two groups of hydraulic mechanisms, the output shaft of the hydraulic mechanism extends horizontally, and a center is arranged at the front end, the center is matched with the center hole of the axle end to clamp the axle, and the two groups of hydraulic mechanisms drive the axle to move left and right along the X direction.

[0023] Further, the bearing clamp comprises a semicircular bearing sleeve and a ring-shaped clamp, the ring-shaped clamp has a clamping notch, one end of the bearing sleeve is wrapped outside the circumference of the bearing, the ring-shaped clamp is inserted into the back of the bearing and fixedly connected with the bearing sleeve through bolts, the other end of the bearing sleeve has a flange protruding radially outward, and the flange is matched with the dismounting device to limit the movement of the bearing clamp.

[0024] Further, the middle section of the bearing sleeve is recessed towards the axle direction and is matched with the outer circumferential surface of the axle after assembly, and a plurality of avoiding openings for avoiding bolt installation spaces are arranged on the flange.

[0025] To solve the second technical problem, the basic idea of the technical solution of the present application is to:

[0026] A dismounting method using the axle gear box bearing dismounting system is provided, comprising the following steps:

[0027] S1, lifting the lifting support device to a preset position by the control device, hoisting the axle to the lifting support device, installing the bearing clamp on the two bearings to be dismounted, and supporting the gear box on the gear box support device;

[0028] S2, starting the axle clamping moving device to clamp the axle from both ends, and slowly lowering the lifting support device to disengage from the axle;

[0029] S3, starting the axle clamping moving device to move the axle as a whole to a preset position on the left or right side, and the dismounting device on the left or right side is raised to a preset position and contacted with the bearing clamp on the same side;

[0030] S4, starting the axle clamping moving device to move the axle as a whole to the opposite direction, and due to the limitation of the dismounting device, the bearing and the bearing clamp are pulled out together to complete the dismounting;

[0031] S5, controlling the dismounting device to descend to the lower limit position and return to the axle clamping state;

[0032] S6, repeating steps S3 to S5 to complete the dismounting of the bearing on the other side;

[0033] S7, starting the lifting support device to rise to a preset position to support the axle, loosening the axle clamping moving device, and hoisting the axle.

[0034] To solve the third technical problem, the basic idea of the technical solution of the present application is to:

[0035] A rail vehicle, when the axle gear box is being repaired, uses the axle gear box bearing dismounting system and the dismounting method as described above.

[0036] In summary, the axle gear box bearing dismounting system and dismounting method provided by the application has the following advantages compared with the prior art.

[0037] (1) The application has overall structure, convenient operation, and can ensure dismounting quality, reduce scrap rate, and reduce maintenance cost.

[0038] (2) The application is reliable and stable, can meet maintenance requirements, and ensure the reliability of personnel safety in the dismounting process of the axle gear box bearing of the rail vehicle.

[0039] (3) The application can avoid more dismounting parts, cause artificial and part dismounting damage, and replace parts, thereby further reducing maintenance cost.

[0040] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings are part of the present application, which serve to provide a further understanding of the present application, and the schematic embodiments of the present application and the description thereof serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the accompanying drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0042] In the drawings:

[0043] Figure 1 is a structural schematic diagram of the dismounting system of the application;

[0044] Figure 2 is a structural schematic diagram of the dismounting system of the application (without axle and gear box);

[0045] Figure 3 is a structural schematic diagram of the axle, gear box, and bearing clamp assembly in the dismounting system of the application;

[0046] Figure 4 is a structural schematic diagram of the lifting support device of the application;

[0047] Figure 5 is a structural schematic diagram of the dismounting device of the application.

[0048] In the drawings:

[0049] Axle 1, gear box 2, bearing 3;

[0050] Bearing clamp 4, bearing sleeve 41, annular clamp 42, bolt 43, convex edge 44, and avoiding opening 45;

[0051] Lifting support device 5, support rod assembly 51, support seat 511, support rod 512, support lifting mechanism 52, and accommodating groove 53;

[0052] Gearbox support device 6, base 61, support column 62, slide rail 63;

[0053] Axle clamping moving device 7, housing 71, output shaft 72, and annular body 73;

[0054] Unloading device 8, unloading support 81, side plate 811, middle plate 812, U-shaped guide groove 813, bottom plate 814, slot 815, unloading plate 82, unloading lifting mechanism 83;

[0055] Control device 9, control cabinet 91, control panel 92;

[0056] Operating Platform 10.

[0057] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention 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 the present invention, but are not intended to limit the scope of the present invention.

[0059] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., 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 invention 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 limiting this invention.

[0060] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0061] Example 1:

[0062] like Figures 1 to 3 As shown, the present invention provides an axle gearbox bearing removal system for removing the large bearings 3 on both sides of the gearbox 2 mounted on the axle 1.

[0063] The bearing dismounting system of the axle gear box of the application comprises a bearing clamp 4, a lifting support device 5, a gear box support device 6, an axle clamping and moving device 7, a dismounting device 8, a control device 9 and a working platform 10. The lifting support device 5, the gear box support device 6, the axle clamping and moving device 7, the dismounting device 8 and the control device 9 are all fixedly installed on the working platform 9.

[0064] The bearing clamp 4 is fixed on the bearing 3 to be dismounted. The lifting support device 5 comprises two groups of left and right groups for supporting the axle 1. The gear box support device 6 is used for supporting the gear box 2. The axle clamping and moving device 7 is used for clamping the axle 1 from both ends and moving the axle 1 left and right in the X direction. The dismounting device 8 cooperates with the bearing clamp 4 to limit the bearing clamp 4, and the bearing clamp 4 and the bearing 3 are dismounted together by moving the axle 1, thereby completing the dismounting of the bearing 3. The control device 9 is used for controlling the operation of the above-mentioned devices. The working platform 10 is directly installed on the ground of the workshop.

[0065] In the embodiment, preferably, the bearing clamp 4 comprises a bearing sleeve 41 and a ring-shaped clamp 42. The bearing sleeve 41 is a cylindrical structure with a semicircular cross section. The ring-shaped clamp 42 has a clamping notch. One end of the bearing sleeve 41 surrounds the outer circumference of the bearing 3. The ring-shaped clamp 42 can be inserted from above the gear box 2 to the back of the bearing 3 (i.e. the side away from the bearing sleeve 41) and is fixedly connected with the bearing sleeve 41 through a plurality of bolts 43. After connection, the bearing 3 can be clamped and fixed. This can not only clamp the bearing 3, but also facilitate the disassembly and assembly of the bearing clamp 4.

[0066] The other end of the bearing sleeve 41 has a protruding flange 44 protruding outward in the radial direction. The protruding flange 44 cooperates with the dismounting device to limit the movement of the bearing clamp 4 in the X direction. In the embodiment, the protruding flange 44 is arranged along the edge of the bearing sleeve 41.

[0067] In the embodiment, further preferably, the middle section of the bearing sleeve 41 is recessed towards the axle 1. After assembly, the middle section is attached to the outer circumferential surface of the axle 1. In this way, the axle 1 can be used to center the bearing clamp 4, ensuring that the bearing 3 will not be skewed when clamped, thereby ensuring the quality of dismounting and preventing damage to the bearing 3 and the axle 1.

[0068] Still further preferably, the protruding flange 44 has a plurality of avoidance openings 45 for avoiding the installation space of the bolts 43. The avoidance openings 45 are arranged one by one corresponding to the bolts 43. When the bearing sleeve 41 and the ring-shaped clamp 42 are fixedly connected through the bolts 43, the operator can insert the bolts 43 from the avoidance openings 45 to fix the bearing sleeve 41 and the ring-shaped clamp 42 together. In this way, the operator can operate from the outside, providing sufficient installation space for the installation of the bolts 43, and facilitating the simplification of the structure of the bearing clamp 4.

[0069] AsFigure 1 and Figure 4 As shown, in this embodiment, the lifting support device 5 includes a support rod assembly 51 and a support lifting mechanism 52. The top of the support rod assembly 51 has a receiving groove 53 for accommodating the axle 1. The receiving groove 53 is preferably a V-shaped groove, which can be used for axles 1 of different diameters. The support lifting mechanism 52 is installed on the work platform 10. The control device 9 controls the operation of the support lifting mechanism 52, driving the support rod assembly 51 to rise to a preset height when the axle 1 needs support, so that the axle clamping moving device 7 can clamp the axle 1. In this embodiment, the support lifting mechanism 52 can be a hydraulically driven lifting mechanism or a servo motor driven lifting mechanism. This allows for adjustable lifting speed, easy operation, and precise control of the support height of the axle 1. The support lifting mechanism 52 also has both automatic and manual adjustment modes.

[0070] In this embodiment, the support rod assembly 51 is further preferably provided, including a support base 511 and a support rod 512. The support base 511 is fixed on the working platform 10. The support base 511 is a hollow columnar structure with a certain height. The bottom of the support rod 512 is inserted into the support base 511 and slides up and down relative to the support base 511. The support base 511 plays a guiding role for the support rod 512, preventing the support rod 512 from tilting when it rises.

[0071] The support lifting mechanism 52 can be any existing lifting mechanism, as long as it can achieve the lifting and lowering of the support rod 512. For example, a hydraulic lifting mechanism or a servo motor-driven lifting mechanism can be used. This allows for adjustable lifting speed, easy operation, and precise control of the support height of the axle 1. The support lifting mechanism 52 also has both automatic and manual adjustment modes. The support lifting mechanism 52 can be independently installed on the working platform 10 on one side of the support rod assembly 51. The output shaft passes through the support base 511 and is connected to the support rod 512 via a transmission mechanism, driving the support rod 512 to rise and fall along the support base 511.

[0072] like Figure 1 and Figure 2 As shown, in this embodiment, the gearbox support device 6 includes a base 61, which is fixed on the working platform 10. At least two support columns 62 are located on the upper surface of the base 61. The gearbox 2 is supported on the top of the support columns 62. The support columns 62 and the upper surface of the base 61 are slidably connected along the X-direction via a sliding pair. This allows for easy adjustment of the support position of the support columns 62 according to the size of the gearbox 2, thereby ensuring stable support of the gearbox 2 during unloading. Preferably, the sliding pair is a slide rail 63 extending along the X-direction and mounted on the upper surface of the base 61. A matching groove (not shown in the figure) is located at the bottom of the support column 62, and the groove cooperates with the slide rail 63 to achieve the sliding of the support column 62.

[0073] likeFigure 1 and Figure 2 As shown, in this embodiment, the axle clamping and moving device 7 includes two sets of hydraulic mechanisms (not shown in the figure). The two sets of hydraulic mechanisms are respectively installed in a housing 71. The output shafts 72 of the two sets of hydraulic mechanisms extend horizontally, and the front end of the output shaft 72 has a center point (not shown in the figure). The center point cooperates with the center hole at the end of the axle 1 to clamp the axle 1 from both ends. While clamping, the two sets of hydraulic mechanisms can also drive the axle 1 to move left and right along the X direction.

[0074] In this embodiment, it is further preferred that an annular body 73 is fitted on the outer side of the tip. After assembly with the axle 1, the end of the axle 1 is embedded in the annular body 72, which protects the tip and the end of the axle 1, and also ensures that the tip and the axle 1 are always in a tight state to prevent them from falling off and causing a safety accident.

[0075] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in this embodiment, there are two sets of unloading devices 8, which are respectively located on both sides of the gearbox support device 6. There are two bearing clamps 4, which are respectively fixed to the bearings 3 to be unloaded on both sides. The two sets of unloading devices 8 cooperate with the two bearing clamps 4 respectively.

[0076] In this embodiment, preferably, the unloading device 8 includes an unloading support 81, on which an unloading plate 82 that can move up and down is mounted. The unloading plate 82 selectively contacts the bearing clamp 4 in the X direction. Specifically, the unloading plate 82 cooperates with the protrusion 44 on the bearing clamp 4. The unloading plate 82 prevents the bearing clamp 4 from moving with the axle 1 during the unloading process, and the unloading of the bearing 3 is achieved by moving the axle 1.

[0077] In this embodiment, it is further preferred that the unloading support 81 consists of two side plates 811 and a middle plate 812. The two sides of the middle plate 812 are welded to the two side plates 811. The side plates 81 are more preferably triangular in structure. The two side plates 811 can be directly welded to the working platform 10. In this embodiment, it is even more preferred that the unloading support 81 also includes a base plate 814. The two side plates 811 are welded to the base plate 814, and the base plate 814 is then welded to the working platform 10 or fixed to the working platform 10 with bolts. This improves the overall structural strength of the unloading support 81 and ensures sufficient unloading force is provided.

[0078] The withdrawal plate 82 is arranged in parallel with the intermediate plate 812, and has opposite U-shaped guide grooves 813 on both sides of the intermediate plate 812, the two side edges of the withdrawal plate 82 are respectively embedded in the corresponding U-shaped guide grooves 813, the withdrawal plate 82 is connected with the withdrawal lifting mechanism 83, the withdrawal plate 82 is driven to slide up and down in the U-shaped guide grooves 813, and the withdrawal lifting mechanism 83 is installed on the operation platform 10. The withdrawal lifting mechanism 83 can adopt any lifting mechanism in the prior art, for example, a hydraulic driving lifting mechanism or a servo motor driving lifting mechanism. In this way, the lifting speed can be adjusted, the operation is convenient, the lifting height of the withdrawal plate 82 can be accurately controlled, and the withdrawal lifting mechanism 83 has automatic and manual adjustment modes.

[0079] In the embodiment, the intermediate plate 812 further has a first U-shaped opening for avoiding the axle 1 and the bearing 3, and the withdrawal plate 82 has a second U-shaped opening matched with the shape of the bearing clamp 4, specifically, the withdrawal plate 82 is matched with the shape of the convex edge 44, so that the contact area between the withdrawal plate 82 and the convex edge 44 is ensured, and sufficient withdrawal force is provided.

[0080] In the embodiment, the four side plates 811 of the two groups of withdrawal supports 81 are respectively provided with a slot 815, and the two sides of the top plate of the base 61 of the gear box supporting device 6 are respectively inserted into the corresponding slots 815. In this way, the supporting capacity of the gear box supporting device 6 can be further improved.

[0081] The control device 9 includes a control cabinet 91, which is integrally installed with the box body 71 of one end of the hydraulic mechanism, and includes a control panel 92, operation buttons and emergency switches (not shown in the figure) arranged on the control panel 92. Automatic operation can be realized, and manual step-by-step operation can also be realized, and the operation should be flexible and convenient. Through the automatic control of the control device 9, the supporting, clamping, bearing withdrawal and returning of the axle 1 can be completed. Through manual control, step-by-step operation control of each operation step can be realized.

[0082] The system can also be provided with a hydraulic station, which is a power source of the whole system. The hydraulic system is provided with an overload protection system of the hydraulic device, an independent pressure gauge, monitoring of the hydraulic pressure at each place, and an overflow valve.

[0083] In the application, a withdrawal method using the axle gear box bearing withdrawal device is also provided, which includes the following steps:

[0084] S1, through the control device 9, the lifting supporting device 5 is lifted to a preset position, the axle 1 is hoisted to the lifting supporting device 5, the bearing clamp 4 is installed on the two bearings 3 to be withdrawn, and the gear box 2 is supported on the gear box supporting device 6.

[0085] In this step, the lifting height of the lifting support device 5 is accurately controlled according to the size of the axle 1, so that the axle 1 can be clamped and moved by the axle clamping and moving devices 7 at both ends after being supported.

[0086] S2, the axle clamping and moving devices 7 are started to clamp the axle 1 from both ends, the lifting support device 5 is slowly lowered to disengage the axle 1, and the lifting support device 5 is slowly lowered to the lowest point.

[0087] After the axle 1 is clamped and moved, the lifting support device 5 is slowly lowered to the lowest point to disengage the axle 1, so that the axle 1 can freely move left and right during the dismounting process.

[0088] S3, the axle clamping and moving devices 7 are started to move the axle 1 as a whole to the left to a preset position, and the dismounting device 8 on the left side is raised to a preset position to contact the bearing clamp 4 on the same side.

[0089] In this step, the axle 1 is moved as a whole to the left or right to a preset position, the dismounting lifting mechanism 83 in the dismounting device 8 is started, the dismounting plate 82 is raised to a preset position, and the dismounting plate 82 is in contact with the convex edge 44 on the bearing clamp 4 on the same side. Specifically, the dismounting plate 82 is in contact with the side of the convex edge 44 on the side of the bearing 3.

[0090] S4, the axle clamping and moving devices 7 are started again to move the axle 1 as a whole in the opposite direction, and due to the limitation of the dismounting device 8, the bearing 3 and the bearing clamp 4 are pulled out together to complete the dismounting.

[0091] In this step, when the dismounting device 8 on the left side is in contact with the bearing clamp 4 on the left side, the axle 1 is controlled to move as a whole to the right side. At this time, under the action of the dismounting device 8, the bearing 3 and the bearing clamp 4 on the left side do not move with the axle 1, so that the bearing 3 and the bearing clamp 4 are dismounted from the axle 1 together.

[0092] S5, the dismounting device 8 is controlled to be lowered to the lower limit position and return to the clamping state.

[0093] S6, the steps S3 to S5 are repeated to complete the dismounting of the bearing on the other side.

[0094] Specifically, the axle 1 is moved as a whole to the right to a preset position, and the dismounting device 8 on the right side is raised to a preset position to contact the bearing clamp 4 on the right side.

[0095] The axle clamping and moving devices 7 are started to move the axle 1 as a whole to the left side, and due to the limitation of the dismounting device 8, the bearing 3 and the bearing clamp 4 are pulled out together to complete the dismounting of the bearing 3 on the right side.

[0096] S7, the lifting support device 5 is started to be raised to a preset position to support the axle 1 again, the axle clamping and moving devices 7 are released, and the axle 1 is lifted to the next station by a vehicle.

[0097] The application also provides a rail vehicle, which adopts the removal system and removal method provided above when the axle gear box is overhauled.

[0098] The application has the following advantages:

[0099] 1. The removal system is easy to operate, can ensure the removal quality, reduce the scrap rate and reduce the overhaul cost.

[0100] 2. The removal system is reliable and stable, can meet the overhaul requirements and ensure the reliability of personnel safety during the bearing removal process of the axle gear box of the rail vehicle.

[0101] 3. The removal system can avoid removing more parts, causing the waste of manual work and part removal damage and replacement, and further reducing the overhaul cost.

[0102] The above is only the preferred embodiment of the application, and does not limit the application in any form. Although the application has been disclosed as above, it is not intended to limit the application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the application, and the equivalent embodiments of the equivalent changes can be obtained. The embodiments in the above examples can be further combined or replaced. Any simple modification, equivalent change and modification of the above examples according to the technical essence of the application, which does not depart from the content of the technical solution of the application, still belongs to the scope of the application.

Claims

1. An axle gear case bearing dismounting system, characterized in that, The utility model relates to a bearing stripping device, including: bearing clamp, fixed on the bearing to be stripped; Lifting support device, including left and right two groups, is used for supporting axle; Gear box support device, used for supporting gear box; Axle clamping moving device, used for clamping axle from both ends and driving axle to move left and right in X direction; Stripping device, cooperate with bearing clamp, is used for limiting bearing clamp, realizes bearing clamp and bearing stripping through moving axle; Control device, used for controlling all device actions; Work platform, lifting support device, gear box support device, axle clamping moving device, stripping device and control device are all fixed installation on work platform; The stripping device is two groups, and is arranged on both sides of gear box support device, and the bearing clamp is two, and is fixed with gear box both sides bearing to be stripped respectively, and two stripping devices are matched with two bearing clamps respectively; The stripping device includes stripping support, and stripping board that can move up and down is installed on the stripping support, the stripping board and bearing clamp selectively contact in X direction, the stripping board blocks bearing clamp and moves with axle, the stripping support is composed of two side plates and an intermediate plate, the two side edges of the intermediate plate are connected with the two side plates, the stripping board is arranged in parallel with the intermediate plate, the two side edges of the intermediate plate are connected with the two side plates, the stripping board is arranged in parallel with the intermediate plate, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of the intermediate plate are connected with the two side plates, the two side edges of ​ 2. The axle gear case bearing disassembly system of claim 1, wherein: ​ 3. The axle gear case bearing disassembly system of claim 2, wherein: ​ 4. The axle gear case bearing disassembly system of claim 1, wherein: ​ 5. The axle gear case bearing disassembly system of claim 1, wherein: The axle clamping moving device comprises two groups of hydraulic mechanisms, output shafts of the hydraulic mechanisms horizontally extend, have a center in the front end, and clamp the axle through cooperation with the center hole of the axle end.

6. The axle gear case bearing disassembly system of claim 1, wherein: The middle section of the bearing sleeve is concave to the axle direction, and is attached to the outer circumferential surface of the axle after assembly.

7. A method of dismounting a bearing of an axle gear box using the dismounting system according to any one of claims 1-6, characterized in that, The method comprises the following steps: S1, lifting the lifting support device to a preset position through the control device, hoisting the axle to the lifting support device, installing the bearing clamp on the two bearings to be removed, and supporting the gear box on the gear box support device; S2, starting the axle clamping moving device to clamp the axle from both ends, and slowly lowering the lifting support device to separate from the axle; S3, starting the axle clamping moving device to move the axle to a preset position, and lifting the removal device on the left side or the right side to a preset position to contact the bearing clamp on the same side; S4, starting the axle clamping moving device to move the axle to the opposite direction, and due to the limitation of the removal device, the bearing and the bearing clamp are pulled out together to complete the removal; S5, controlling the removal device to descend to the lower limit and return to the clamping state of the axle; S6, repeating steps S3 to S5 to complete the removal of the bearing on the other side; S7, starting the lifting support device to rise to a preset position to support the axle, loosening the axle clamping moving device, and hoisting the axle.

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