Split type axle box dismounting device

Abstract

The utility model provides a split type axle box dismounting device which comprises a supporting frame, a rack guide rod is arranged in the middle of the supporting frame, and a linear reciprocating driving device which is connected with the rack guide rod and drives the rack guide rod to move in a reciprocating mode is installed on the supporting frame. Racks are arranged on the two sides of the rack guide rod in the moving direction respectively, two supporting rods rotating oppositely are installed on the supporting frame in a hinged mode, and gears meshed with the racks are installed at the ends of the supporting rods. The split type axle box disassembling device is simple in structure and convenient to use, the split type axle box is separated and disassembled by arranging the two supporting rods which rotate relatively under the driving of the movement of the rack guide rod, the traditional mode of manual hammering is effectively replaced, the operation intensity of workers is reduced, the disassembling efficiency and the operation safety are improved, and the maintenance work of the split type axle box is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance of split axle boxes of EMU trains, in particular to a split axle box disassembly device. Background Art

[0002] In railway locomotives and vehicles, the part that is sleeved on the axle neck and connects the wheelset and the bogie frame or the body of a two-axle vehicle is called the axle box. Its function is to transfer the weight and load of the vehicle body to the wheelset, lubricate the axle neck, reduce friction, and reduce running resistance.

[0003] During the inspection and maintenance of EMU bogies, the split axle box of the wheelset needs to be disassembled in order to perform maintenance operations on the wheelset. The surface hardness of the split axle box is low and the fit is tight, so it is usually disassembled by manual hammering.

[0004] This operation method is very likely to cause deformation and surface damage to the split axle box during inspection and repair. In addition, there are requirements for the disassembly angle of the axle box for each type of wheel set. It consumes a lot of physical strength of the workers, has high work intensity, is time-consuming and labor-intensive, has low work efficiency, and is less safe to operate. Utility Model Content

[0005] The utility model aims to provide a split axle box disassembly device to solve the above technical problems.

[0006] The utility model provides a split axle box disassembly device, comprising a support frame, a rack guide rod is arranged in the middle of the support frame, a linear reciprocating drive device connected to the rack guide rod and driving the rack guide rod to move back and forth is installed on the support frame, racks are respectively provided on both sides of the rack guide rod along the moving direction, two relatively rotating support rods are hingedly installed on the support frame, and gears meshing with the racks are installed at the ends of the support rods.

[0007] Furthermore, the support frame includes a main beam and a fixed beam, the main beam is a U-shaped structure, and the fixed beam is installed on the main beam.

[0008] Furthermore, the rack guide rod is arranged at a middle position of the main beam, and the support rod is hingedly connected to the fixed beam.

[0009] Furthermore, the racks on both sides of the rack guide rod are symmetrically arranged, and the module of the racks is 3.

[0010] Furthermore, a polyurethane rubber plate is installed at the tail end of the support rod.

[0011] Furthermore, a guide groove opened along the moving direction of the rack guide rod is provided at a position of the fixed beam close to the rack guide rod, and a guide block extending into the guide groove and slidably connected to the guide groove is provided on the rack guide rod.

[0012] Furthermore, a mounting seat is connected to the opening of the main beam, and the linear reciprocating drive device is arranged on the mounting seat.

[0013] Furthermore, the linear reciprocating drive device is a cylinder, and the telescopic end of the cylinder passes through the mounting seat and is connected to the rack guide rod.

[0014] Furthermore, a positioning end rod is installed at the end of the main beam away from the linear reciprocating drive device.

[0015] Furthermore, a handrail is installed on the main beam.

[0016] The utility model has a simple structure and is easy to use. By arranging two support rods that rotate relatively when driven by the movement of the rack guide rod, the split axle box can be separated and disassembled, which effectively replaces the traditional method of manual hammering, reduces the working intensity of workers, improves disassembly efficiency and operating safety, and facilitates the inspection and maintenance of the split axle box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 It is the internal structure diagram of the utility model;

[0022] Figure 5 This is a diagram of the internal structure of the utility model after being expanded;

[0023] Figure 6 It is a schematic diagram of the application of the utility model;

[0024] Figure 7 This is an internal structure diagram of Embodiment 2 of the present utility model;

[0025] Description of reference numerals:

[0026] In the figure: 1-split axle box, 2-main beam, 3-fixed beam, 4-mounting seat, 5-cylinder, 6-rack guide rod, 7-support rod, 8-positioning end rod, 9-handrail, 10-gear, 11-guide block, 12-polyurethane rubber plate, 13-ball screw, 14-moving block, 15-driving motor; DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are 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.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1-Figure 6 As shown:

[0032] A split axle box disassembly device comprises a support frame, wherein the support frame comprises a main beam 2 and a fixed beam 3, the main beam 2 is a U-shaped structure, and the fixed beam 3 is installed on the inner side wall of the main beam 2.

[0033] The fixed beams 3 are made of hard aluminum alloy by CNC processing, and there are two of them, which are symmetrically arranged.

[0034] A rack guide rod 6 is arranged in the middle of the main beam 2. Racks are arranged on both sides of the rack guide rod 6 along the moving direction. The racks on both sides of the rack guide rod 6 are symmetrically arranged, and the module of the racks is 3.

[0035] The opening of the main beam 2 is connected with a mounting seat 4, on which a cylinder 5 is disposed. In this embodiment, the cylinder 5 is selected as a linear reciprocating drive device.

[0036] The telescopic end of the cylinder 5 passes through the mounting seat 4 and is connected to the rack guide rod 6. The cylinder 5 drives the rack guide rod 6 to perform linear reciprocating motion in the middle of the main beam 2.

[0037] Two relatively rotatable support rods 7 are hingedly mounted at both ends of the fixed beam 3 . A gear 10 meshing with the rack is mounted at the end of the support rod 7 . The support rod 7 and the gear 10 are relatively fixed in position. In this embodiment, the gear 10 is a sector gear 10 .

[0038] A polyurethane rubber plate 12 is installed at the tail end of the support rod 7 to ensure flexible contact with the workpiece without damaging the workpiece. The polyurethane rubber plate 12 is designed to be contoured according to the part of the workpiece that is contacted and clamped.

[0039] A guide groove is provided along the moving direction of the rack guide rod 6 at a position near the fixed beam 3 and the rack guide rod 6 is provided with a guide block 11 extending into the guide groove and slidably connected to the guide groove for guiding and resisting reaction force when the rack moves.

[0040] A positioning end rod 8 is installed at one end of the main beam 2 away from the cylinder 5. The positioning end rod 8 cooperates with the end mounting hole of the main beam 2 and is firmly connected by fastening screws and anti-loosening washers. The end of the positioning end rod 8 is wrapped with polyurethane rubber. The end of the positioning end rod 8 can be inserted into the inner hole on the wheelset shaft, thereby positioning the entire mechanism.

[0041] The main beam 2 is provided with a handrail 9, which is welded from an aluminum alloy round tube, and the handrail 9 is detachably connected to the main beam 2 through a ring plate. A button control box can be installed on the handrail 9 through a clamp to control the action of the mechanism.

[0042] A ground-mounted transition beam may be provided at the bottom of the support frame and the mounting seat 4 to fix the entire device or drive the entire device to move.

[0043] The main beam 2 can also be set as a quadrilateral frame, the mounting seat 4 is connected to an end plate of the main beam 2, and the telescopic end of the cylinder 5 passes through the mounting seat 4 and an end plate of the main beam 2 and extends to the inside of the main beam 2 to connect to the rack guide rod 6.

[0044] Usage process: After placing the workpiece with the split axle box 1 on the workshop rails, the operator holds the handrail 9 to insert the positioning end rod 8 into the inner hole of the wheelset shaft for positioning. The tail end of the polyurethane rubber plate 12 installed on the support rod 7 contacts the inner wall of the split axle box 1. Operate the pneumatic switch button, the cylinder 5 is actuated to drive the rack guide rod 6 forward. The fan gear 10 on the support rod 7 is driven by the forward-moving rack guide rod 6, and the support rod 7 is actuated. The two support rods 7 rotate outward relative to each other, and the split axle box 1 is opened from the inner hole to complete the separation; then the wheelset axle box body is transported to the conveyor line through the axle box body transport hoist to enter the next process.

[0045] The utility model has a simple structure and is easy to use. By arranging two support rods 7 that rotate relative to each other under the drive of the rack guide rod 6, the split axle box 1 is separated and disassembled, which effectively replaces the traditional method of manual hammering and reduces the working intensity of workers. By arranging the support rod 7 equipped with a polyurethane rubber plate 12, flexible contact with the workpiece is ensured without damaging the workpiece, thereby improving the disassembly efficiency and operational safety, and facilitating the inspection and maintenance of the split axle box 1.

[0046] Example 2

[0047] like Figure 7 As shown, in this embodiment, a combination of a ball screw 13 transmission mechanism and a drive motor 15 is used to replace the cylinder 5. A ball screw 13 is arranged in the middle position of the main beam 2, and a connecting hole opened along the moving direction is provided in the middle of the rack guide rod 6. The moving block 14 of the ball screw 13 is installed in the connecting hole and fixedly connected to the rack guide rod 6.

[0048] The driving motor 15 is arranged on the mounting seat 4 , one end of the ball screw 13 passes through the mounting seat 4 and is connected to the output shaft of the driving motor 15 , and the other end of the ball screw 13 is rotatably connected to a rotating seat mounted on the inner wall of the main beam 2 .

[0049] The ball screw 13 is driven to rotate by the driving motor 15, so that the moving block 14 drives the rack guide rod 6 to move, and the rack guide rod 6 drives the support rod 7 to move, and the two support rods 7 rotate relative to each other, so that the split axle box 1 is opened from the inner hole to complete the separation. The combination of the ball screw 13 and the moving block 14 provides both movement and guidance for the rack guide rod 6.

[0050] Except for the above-mentioned technical features, other technical solutions are the same as those in Example 1.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A split axle box disassembly device, characterized in that: It includes a support frame, a rack guide rod is arranged in the middle of the support frame, a linear reciprocating drive device connected to the rack guide rod and driving the rack guide rod to move back and forth is installed on the support frame, racks are respectively provided on both sides of the rack guide rod along the moving direction, two relatively rotating support rods are hingedly installed on the support frame, and gears meshing with the racks are installed at the ends of the support rods.

2. The split axle box disassembly device according to claim 1 is characterized in that: The support frame comprises a main beam and a fixed beam, the main beam is a U-shaped structure, and the fixed beam is installed on the main beam.

3. The split axle box disassembly device according to claim 2 is characterized in that: The rack guide rod is arranged at the middle position of the main beam, and the support rod is hingedly connected to the fixed beam.

4. The split axle box disassembly device according to claim 1 is characterized in that: The racks on both sides of the rack guide rod are symmetrically arranged, and the module of the racks is 3.

5. The split axle box disassembly device according to claim 1 is characterized in that: A polyurethane rubber plate is installed at the tail end of the support rod.

6. The split axle box disassembly device according to claim 2 is characterized in that: A guide groove opened along the moving direction of the rack guide rod is provided at a position of the fixed beam close to the rack guide rod, and a guide block extending into the guide groove and slidably connected to the guide groove is provided on the rack guide rod.

7. The split axle box disassembly device according to claim 2 is characterized in that: The opening of the main beam is connected with a mounting seat, and the linear reciprocating drive device is arranged on the mounting seat.

8. The split axle box disassembly device according to claim 7 is characterized in that: The linear reciprocating drive device is a cylinder, and the telescopic end of the cylinder passes through the mounting seat and is connected to the rack guide rod.

9. The split axle box disassembly device according to claim 2, characterized in that: A positioning end rod is installed at the end of the main beam away from the linear reciprocating drive device.

10. The split axle box disassembly device according to claim 2, characterized in that: A handrail is installed on the main beam.

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