Tool for dismounting bearing of auxiliary upwind motor of subway train

Abstract

The utility model relates to a tool for dismounting a bearing of a subway train auxiliary upwind motor. The tool comprises a power assembly, a press-fitting body and a bearing assembly, and the power assembly penetrates through the top of the press-fitting body and is used for driving a to-be-disassembled auxiliary upwind motor to move; the bearing assembly is connected to the interior of the press-fitting body, a notch is formed in the bearing assembly, the to-be-disassembled auxiliary upwind motor is located in the notch and comprises a bearing located above the notch, and the width of the notch is smaller than the outer diameter of the bearing. Compared with the prior art, the dismounting device has the advantages of effectively simplifying the dismounting process of the auxiliary upwind motor bearing, improving the dismounting speed, further reducing the working intensity of workers, improving the working efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of train maintenance technology, and in particular to a tooling for disassembling the bearing of the auxiliary counter-wind motor of a subway train. Background Technology

[0002] The maintenance of the train auxiliary counter-ventilator requires disassembling the motor inside the fan. Disassembling the motor necessitates removing the bearings on both sides of the motor's main shaft. The existing method uses hydraulic pullers, which, while capable of removing the bearings from both ends of the shaft, is cumbersome. Because the motor is in a free state without fixation, bearing removal is difficult, requiring frequent adjustments and making the operation very inconvenient. Therefore, simplifying the disassembly process and improving work efficiency has become a problem that needs to be solved in this field. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the existing technology and provide a tooling for disassembling the bearing of the auxiliary reverse fan motor of a subway train. It can simplify the disassembly process, quickly disassemble the bearing, thereby reducing the labor intensity of workers and improving work efficiency.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] This utility model provides a tooling for disassembling the bearing of an auxiliary reverse fan motor in a subway train, including a power component, a pressing body, and a bearing component. The power component passes through the top of the pressing body and is used to drive the auxiliary reverse fan motor to be disassembled to move. The bearing component is connected to the interior of the pressing body and has a notch. The auxiliary reverse fan motor to be disassembled is located in the notch. The auxiliary reverse fan motor to be disassembled includes a bearing located above the notch, and the width of the notch is smaller than the outer diameter of the bearing.

[0006] As a preferred technical solution, the tooling further includes a locking component, the bearing component is fixedly connected to the locking component, and the locking component is fixedly connected to the pressing body.

[0007] As a preferred technical solution, the locking assembly includes a bearing locking plate, and the end of the bearing assembly is fixedly connected to the pressing body through the bearing locking plate.

[0008] As a preferred technical solution, the bearing component includes a press-fit bearing plate, which is connected to the interior of the press-fit body.

[0009] As a preferred technical solution, the power assembly includes a power element and a fastener, the power element passing through the top of the press-fitting body and being fixedly connected to the top by the fastener.

[0010] As a preferred technical solution, the power element is a hydraulic piston cylinder.

[0011] As a preferred technical solution, the fastener is a nut.

[0012] As a preferred technical solution, the pressing body includes a pressing top plate, a pressing side plate and a bottom plate. The bottom end of the pressing side plate is fixedly connected to the bottom plate, and the top end of the pressing side plate is fixedly connected to the pressing top plate. The power component passes through the pressing top plate.

[0013] As a preferred technical solution, the pressing body further includes a back reinforcing plate, which is fixedly connected to the pressing side plate.

[0014] As a preferred technical solution, the tooling has mounting holes at its bottom.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model connects the bearing component to the inside of the press-fitting body and opens a notch. When disassembling the bearing, the auxiliary reverse fan motor to be disassembled is placed in the notch, with the bearing located above the notch. Since the width of the notch is smaller than the outer diameter of the bearing, when the power component drives the auxiliary reverse fan motor to be disassembled to move downward, the bearing component will block the bearing, and the motor's main shaft will separate from the bearing and move downward, thereby removing the bearing. In the entire disassembly process, it is only necessary to put the auxiliary reverse fan motor to be disassembled into the notch, and to remove the bearings at both ends, it is only necessary to rotate the motor 180 degrees. The installation and operation are convenient, which can effectively simplify the disassembly process of the auxiliary reverse fan motor bearing of the subway train, improve the disassembly speed, thereby reducing the labor intensity of workers and improving work efficiency.

[0017] 2. This utility model utilizes the press-fitting body to provide a disassembly space for the auxiliary counter-wind motor to be disassembled. The load-bearing components are located inside the press-fitting body. The entire tooling design is compact, the structure is simple, and the maintenance cost is low.

[0018] 3. The main body of the press-fitting device in this utility model is also equipped with a back reinforcing plate to improve the stability of the overall tooling and ensure operational safety;

[0019] 4. The tooling provided by this utility model has mounting holes at the bottom, which facilitates installation on different work platforms, making it highly adaptable and compact in structure. Attached Figure Description

[0020] Figure 1 A schematic diagram of the tooling structure is provided for an embodiment of this utility model;

[0021] Figure 2 A schematic diagram of the back structure of the tooling is provided for an embodiment of this utility model;

[0022] Figure 3 A schematic diagram showing the tooling mounted on a workbench is provided for an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the auxiliary counter-wind motor to be disassembled placed in the arc-shaped notch of the press-fit bearing plate in an embodiment of this utility model;

[0024] Among them: 11. Hydraulic plunger cylinder; 12. Tightening nut; 21. Press-fit top plate; 22. Press-fit side plate; 23. Bottom plate; 31. Press-fit bearing plate; 41. Bearing locking plate; 51. Back reinforcement plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. 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. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0028] Example:

[0029] This invention provides a fixture for disassembling the bearing of an auxiliary reverse fan motor in a subway train. The fixture includes a power component, a pressing body, and a load-bearing component. The power component passes through the top of the pressing body and drives the auxiliary reverse fan motor to be disassembled. The load-bearing component is connected inside the pressing body and has a notch. The auxiliary reverse fan motor to be disassembled is located within the notch, which includes a bearing positioned above the notch. The width of the notch is smaller than the outer diameter of the bearing. This fixture offers flexible operation, simplifies the bearing disassembly process of the auxiliary reverse fan motor, improves disassembly efficiency, greatly facilitates on-site operations, and thus enhances work efficiency.

[0030] Figure 1 One specific structure of the aforementioned tooling is shown. This tooling includes a force assembly, a pressing body, a load-bearing assembly, and a locking assembly. Wherein:

[0031] The power assembly includes a power element and fasteners. The power element is a hydraulic piston cylinder 11, and the fasteners are tightening nuts 12. The pressing body includes a pressing top plate 21, a pressing side plate 22, and a bottom plate 23. The bottom end of the pressing side plate 22 is fixedly connected to the bottom plate 23, and the top end of the pressing side plate 22 is fixedly connected to the pressing top plate 21. Specifically, the hydraulic piston cylinder 11 passes through the pressing top plate 21 and is fixedly connected to the pressing top plate 21 by tightening nuts 12. Tightening nuts 12 ensure that the hydraulic piston cylinder 11 remains stable during operation and does not rotate left or right.

[0032] The supporting assembly includes a press-fit supporting plate 31, which is connected to the interior of the press-fitting body. The locking assembly includes a supporting locking plate 41 and a connector. The end of the press-fitting supporting plate 31 is fixedly connected to the press-fitting side plate 22 via the supporting locking plate 41 and the connector. Optionally, the connector is a screw. Specifically, the press-fitting supporting plate 31 is located in the space formed by the press-fitting top plate 21, the press-fitting side plate 22, and the bottom plate 23. A square hole is provided on the press-fitting side plate 22 for the end of the press-fitting supporting plate 31 to be placed. Screw holes are provided at corresponding positions on the supporting locking plate 41 so that the end of the press-fitting supporting plate 31 is fixedly connected to the supporting locking plate 41 on the corresponding side by screws. Screw holes are provided on the portion of the press-fitting side plate 22 without square holes, and screw holes are provided at corresponding positions on the supporting locking plate 41 so that the press-fitting side plate 22 and the supporting locking plate 41 are fixedly connected by screws.

[0033] In the tooling provided in this embodiment, the frame structure composed of a press-fit top plate 21, a press-fit side plate 22, a bottom plate 23, a press-fit bearing plate 31, and a bearing locking plate 41 serves as the main load-bearing structure, which can effectively bear the pressure of the hydraulic piston cylinder 11. Figure 2 As shown, the press-fitting body also includes a back reinforcing plate 51, which is fixedly connected to the press-fitting side plate 22. This allows it to better bear the pressure of the hydraulic plunger cylinder 11 and further improve the stability of the tooling.

[0034] The press-fit side plate 22 is provided with multiple screw holes, thereby allowing the height of the bearing locking plate 41 and the press-fit bearing plate 31 to be adjusted vertically to meet the requirements of different bearing disassembly heights. The press-fit top plate 21 is provided with threaded holes that can match the external threads of the hydraulic plunger cylinder 11, allowing the hydraulic plunger cylinder 11 to be screwed onto the press-fit top plate 21. To ensure the stability of the operation of the hydraulic plunger cylinder 11, a tightening nut 12 for the hydraulic plunger cylinder 11 is added, which can ensure that the hydraulic plunger cylinder 11 remains stable during operation and does not rotate left or right.

[0035] The tooling provided in this embodiment is made of lightweight metal material while ensuring strength, allowing for flexible handling. For example... Figure 3 As shown, the base plate 23 of the tooling is provided with mounting holes, which facilitates the installation of the tooling on different work platforms. The aforementioned tooling is flexible in operation, simplifies operation, greatly facilitates the operation of on-site workers, and improves work efficiency.

[0036] like Figure 4 As shown, the working principle of the aforementioned tooling is as follows:

[0037] This fixture uses the pressure of the hydraulic plunger cylinder 11 to press against the main shaft of the auxiliary counter-wind motor to be disassembled, transmitting a downward force to it. Because the press-fit bearing plate 31 blocks the bearing, the motor's main shaft separates from the bearing and moves downward, thus allowing the bearing to be removed. The press-fit bearing plate 31 has an arc-shaped notch adapted to the motor main shaft, allowing for quick insertion and easy installation. The motor main shaft has bearings at both ends, and the fixture's spatial design allows for the removal of these bearings. Removing the bearings at both ends only requires rotating the motor 180 degrees. This fixture can fix the bearings on both sides of the auxiliary counter-wind motor to be disassembled, simplifying the operation process. It features a compact design, simple structure, and low maintenance costs.

[0038] The operation process of the aforementioned tooling is as follows:

[0039] Screw the hydraulic plunger cylinder 11 into the screw hole of the press-fit top plate 21. After adjusting the appropriate height, tighten the tightening nut 12 of the hydraulic plunger cylinder 11 to ensure the stability of the hydraulic plunger cylinder 11. Place the auxiliary reverse fan motor with the bearing still attached into the arc-shaped notch in the press-fit bearing plate 31. Operate the handle of the hydraulic plunger cylinder 11 to move the piston head of the hydraulic plunger cylinder 11 downward, pressing against the main shaft of the fan motor and causing it to move downward. Since the press-fit bearing plate 31 will block the bearing, the bearing will detach from the bearing and remain on the press-fit bearing plate 31. To remove the bearing on the other side, simply rotate the motor 180 degrees and repeat the above operation to complete the removal.

[0040] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A tool for dismounting a motor bearing of an auxiliary counter-wind machine of a subway train, characterized in that, The tool comprises a power assembly, a pressing body and a bearing assembly, The power assembly passes through the top of the pressing body to drive the auxiliary counter-flow fan motor to be disassembled to move; The bearing assembly is connected to the inside of the pressing body, the bearing assembly is provided with a gap, the auxiliary counter-flow fan motor to be disassembled is located in the gap, the auxiliary counter-flow fan motor to be disassembled comprises a bearing located above the gap, and the width of the gap is smaller than the outer diameter of the bearing.

2. The tooling for dismounting the motor bearing of the auxiliary counter-wind machine of the subway train according to claim 1, characterized in that, The tool further comprises a locking assembly, the bearing assembly is fixedly connected with the locking assembly, and the locking assembly is fixedly connected with the pressing body.

3. The tooling for dismounting the motor bearing of the auxiliary counter-wind machine of the subway train according to claim 2, characterized in that, The locking assembly comprises a bearing locking plate, and the end of the bearing assembly is fixedly connected with the pressing body through the bearing locking plate.

4. The tooling for dismounting the motor bearing of the auxiliary counter-wind machine of the subway train according to claim 1, characterized in that, The bearing assembly comprises a pressing bearing plate, and the pressing bearing plate is connected to the inside of the pressing body.

5. The tooling for dismounting the motor bearing of the auxiliary counter-wind machine of the subway train according to claim 1, characterized in that, The power assembly comprises a power element and a fastener, the power element passes through the top of the pressing body, and the power element is fixedly connected with the top through the fastener.

6. The tooling for dismounting the motor bearing of the auxiliary counter-wind machine of the subway train according to claim 5, characterized in that, The power element is a hydraulic plunger cylinder.

7. The tooling for dismounting the motor bearing of the auxiliary counter-wind machine of the subway train according to claim 5, characterized in that, The fastener is a nut.

8. The tooling for dismounting the motor bearing of the auxiliary counter- wind machine of a subway train according to claim 1, characterized in that, The pressing body comprises a pressing top plate, a pressing side plate and a bottom plate, the bottom end of the pressing side plate is fixedly connected with the bottom plate, the top end of the pressing side plate is fixedly connected with the pressing top plate, and the power assembly passes through the pressing top plate.

9. The tooling for dismounting the motor bearing of the auxiliary counter- wind machine of a metro train according to claim 8, characterized in that, The pressing body further comprises a back reinforcing plate, and the back reinforcing plate is fixedly connected with the pressing side plate.

10. The tooling for dismounting the motor bearing of the auxiliary counter- wind machine of a subway train according to claim 1, characterized in that, The bottom of the tool is provided with a mounting hole.

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