Wheel set main shaft withdrawing device

Abstract

The utility model belongs to the technical field of light rail maintenance equipment, and particularly relates to a wheel set main shaft withdrawing device which comprises a placing table, two fixing blocks are oppositely arranged on the rear side wall of the placing table, and the top of the placing table is used for placing a wheel set main shaft; the number of the positioning assemblies is four, and the positioning assemblies are arranged in the containing table in an array mode. The abutting assembly is arranged at the bottom of the containing table and used for abutting the positioning assembly to protrude out of the top of the containing table. And the moving assembly is arranged between the two fixing blocks, a second bidirectional hydraulic telescopic rod is arranged on the moving assembly, and the problems that when a hand hammer is adopted for knocking the wheel to disassemble one part in the main shaft, the labor intensity is large, and time and labor are wasted are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to light rail maintenance equipment technical field, concretely relates to a wheel set main shaft unloading device. BACKGROUND

[0002] Low floor light rail vehicle is a kind of urban rail transport tool, its characteristics are that vehicle floor distance track surface is lower, usually less than 40 centimeters, and most low floor light rail vehicle non-power bogie adopts independent wheel set structure type, and wheel set main shaft is split structure, and the wheel set main shaft mainly includes bent shaft and short shaft, and in reality, short shaft and bent shaft are connected and assembled using interference fit, and two short shafts are respectively tightly fitted and installed at the two ends of bent shaft;

[0003] When low floor light rail vehicle enters the period of repair or overhaul, short shaft and bent shaft of wheel set main shaft need to be disassembled to replace worn bent shaft or short shaft, but the traditional disassembly method uses hand hammer to knock one part to disassemble, and the labor intensity is large, and it is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] Based on the problems mentioned in the above background technology, the utility model provides a wheel set main shaft unloading device to solve the problems that one part of wheel set main shaft is knocked using hand hammer to disassemble, and the labor intensity is large, and it is time-consuming and laborious.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A wheel set main shaft unloading device, comprising:

[0007] A placing table, two fixed blocks are arranged opposite to the rear side wall of the placing table, and the top of the placing table is used to place wheel set main shaft;

[0008] Positioning assembly, the positioning assembly is provided with four, and is arrayed in the inside of placing table;

[0009] Resisting assembly, the resisting assembly is arranged at the bottom of placing table, and is used to resist the positioning assembly from protruding out of the top of placing table;

[0010] Moving assembly, the moving assembly is arranged between two fixed blocks, and two-way hydraulic telescopic rod two is arranged on the moving assembly.

[0011] On the basis of the above technical scheme, the utility model has made the following improvements:

[0012] Further, the positioning assembly includes clamping hole and positioning column, the clamping hole is vertically arranged on the top surface of placing table, the positioning column is movably clamped in the clamping hole, and the bottom of the positioning column is in the shape of ball head.

[0013] Furthermore, the resisting assembly includes a bidirectional hydraulic telescopic rod set at the bottom of the placing table through a fixed seat, and both telescopic ends of the bidirectional hydraulic telescopic rod are provided with connecting plates, and each of the connecting plates is provided with two resist columns, and one end of the resist column is provided in a ball head shape. Two through holes are provided on the two opposite side walls of the bottom of the placing table, and each of the through holes is respectively connected to the bottom of the corresponding card hole, and each of the resist columns is respectively located in the corresponding through hole.

[0014] Furthermore, the moving component includes a card slot, two of which are provided and are respectively arranged on the opposite side walls of the two fixed blocks. A screw is provided in each of the two card slots, a motor is provided at one end of each of the two screws, a slide is provided on each of the two screws, a mounting frame is provided between the two slides, and the two-way hydraulic telescopic rod is provided on the mounting frame.

[0015] Furthermore, the distance from the center of the two-way hydraulic telescopic rod 2 to the top surface of the placement platform is consistent with the distance from the axis center of the short axis of the wheelset main axis at the top of the placement platform to the top surface of the placement platform.

[0016] Beneficial effects of the utility model:

[0017] 1. By combining the placement table, positioning assembly and abutment assembly, when in use, the wheelset spindle can be placed on the placement table, and then the abutment assembly can be used to adjust the positioning assembly so that the positioning assembly can position the wheelset spindle on the placement table to prevent it from moving;

[0018] 2. By combining the provided moving component with the two-way hydraulic telescopic rod, when the wheelset main shaft is stabilized on the placement table, the moving component is used to drive the two-way hydraulic telescopic rod to move, so that the center line of the two-way hydraulic telescopic rod is moved to coincide with the axis center line of the short shaft in the wheelset main shaft, and then the two telescopic ends of the two-way hydraulic telescopic rod are extended to push down the two short shafts on the bent shaft in the wheelset main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0020] Fig. 1 This is a structural diagram of a wheelset spindle unloading device according to the present invention;

[0021] Fig. 2 This is a bottom structural diagram of a wheelset spindle unloading device according to the present invention;

[0022] Fig. 3 This is a partial cross-sectional view of a wheelset spindle unloading device according to the present invention;

[0023] Fig. 4 This is a diagram of the use status of a wheelset main shaft unloading device of the utility model.

[0024] The attached drawings are marked as follows:

[0025] 101. Placement table; 102. Fixing block; 201. Clamping hole; 202. Positioning column; 301. Fixing seat; 302. Two-way hydraulic telescopic rod 1; 303. Connecting plate; 304. Abutment column; 305. Through hole; 401. Clamping slot; 402. Screw; 403. Slide seat; 404. Mounting bracket; 405. Motor; 5. Two-way hydraulic telescopic rod 2; 601. Bending axis; 602. Short axis; 603. Mounting hole. DETAILED DESCRIPTION

[0026] like Figs. 1-4 As shown, a wheelset spindle unloading device includes:

[0027] The placing platform 101 has two fixing blocks 102 disposed opposite to each other on the rear side walls thereof. When in use, the wheelset spindle can be placed on the top of the placing platform 101. The positioning components are provided with four positioning components, and are arranged in an array inside the placing platform 101. The positioning components include a clamping hole 201 and a positioning column 202. The clamping hole 201 is vertically arranged on the top surface of the placing platform 101. The positioning column 202 is movably clamped in the clamping hole 201. The bottom of the positioning column 202 is in the shape of a ball head. After the wheelset spindle is placed on the top of the placing platform 101, the position of the wheelset spindle is adjusted so that the four mounting holes 603 in the wheelset spindle are aligned with the corresponding clamping holes 201 respectively.

[0028] The abutting component is arranged at the bottom of the placement platform 101. The abutting component includes a two-way hydraulic telescopic rod 302 arranged at the bottom of the placement platform 101 through a fixed seat 301. The two telescopic ends of the two-way hydraulic telescopic rod 302 are provided with connecting plates 303. Two abutting columns 304 are provided on each connecting plate 303. One end of the abutting column 304 is provided in a ball head shape. Two through holes 305 are provided on the two opposite side walls of the bottom of the placement platform 101. Each through hole 305 is respectively connected to the bottom of the corresponding card hole 201. Each abutting column 304 is respectively located in the corresponding through hole 305. When the wheelset spindle is placed on the top of the placement platform 101 and the wheelset spindle is After the four mounting holes 603 in the shaft are aligned with the corresponding clamping holes 201, the two-way hydraulic telescopic rod 1 302 is activated. Its two telescopic ends are extended, and the corresponding connecting plates 303 are moved away from each other, prompting each support column 304 to move into the corresponding through hole 305. When the ball end of each support column 304 moves into the bottom of the corresponding clamping hole 201, the ball end of each support column 304 can push the bottom ball end of the corresponding positioning column 202, so that the top of each positioning column 202 extends from the corresponding clamping hole 201 to the corresponding mounting hole 603 in the wheelset spindle, thereby achieving the positioning of the wheelset spindle on the placement platform 101 and preventing it from moving.

[0029] The moving assembly is arranged between the two fixed blocks 102. The moving assembly includes a card slot 401. There are two card slots 401, and they are respectively arranged on the opposite side walls of the two fixed blocks 102. A screw 402 is provided in each of the two card slots 401. A motor 405 is provided at one end of each of the two screws 402. A slide 403 is sleeved on each of the two screws 402. A mounting frame 404 is provided between the two slides 403. A bidirectional hydraulic telescopic rod 25 is provided on the mounting frame 404. When the motor 405 is started, the screw 402 can be driven to rotate, prompting the slide 403 and the mounting frame 404 to move, so as to drive the mounting frame The bidirectional hydraulic telescopic rod 25 on 404 moves toward the wheelset main shaft; and the distance from the center of the bidirectional hydraulic telescopic rod 25 to the top surface of the placement platform 101 is consistent with the distance from the axis center of the short axis 602 of the wheelset main shaft at the top of the placement platform 101 to the top surface of the placement platform 101, so that after the bidirectional hydraulic telescopic rod 25 moves toward the predetermined position close to the wheelset main shaft, the center line of the bidirectional hydraulic telescopic rod 25 coincides with the axis center line of the short axis 602 of the wheelset main shaft, and then the bidirectional hydraulic telescopic rod 25 is started to extend its two telescopic ends to resist the corresponding short axis 602, thereby realizing the push-down of the two short axes 602 on the bent axis 601 of the wheelset main shaft.

[0030] The above describes the present invention in detail. The description of the specific embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A wheelset spindle unloading device, characterized by: include: A placement platform (101), wherein two fixing blocks (102) are arranged opposite to each other on the rear side wall of the placement platform (101), and the top of the placement platform (101) is used for placing the wheelset spindle; Positioning components, wherein four positioning components are provided and are arranged in an array inside the placement table (101); A moving assembly, the moving assembly being arranged at the bottom of the placement platform (101) and being used to move the positioning assembly out of the top of the placement platform (101); A moving assembly is provided between two fixed blocks (102), and a two-way hydraulic telescopic rod (5) is provided on the moving assembly.

2. The wheelset spindle unloading device according to claim 1, characterized in that: The positioning assembly comprises a clamping hole (201) and a positioning column (202); the clamping hole (201) is vertically arranged on the top surface of the placement platform (101); the positioning column (202) is movably clamped in the clamping hole (201); and the bottom of the positioning column (202) is in the shape of a ball head.

3. The wheelset spindle unloading device according to claim 2, characterized in that: The abutting assembly includes a bidirectional hydraulic telescopic rod (302) arranged at the bottom of the placement platform (101) through a fixed seat (301), and both telescopic ends of the bidirectional hydraulic telescopic rod (302) are provided with connecting plates (303), and each of the connecting plates (303) is provided with two abutting columns (304), and one end of the abutting column (304) is provided in a ball head shape. Two through holes (305) are provided on the two opposite side walls of the bottom of the placement platform (101), and each through hole (305) is respectively connected to the bottom of the corresponding clamping hole (201), and each of the abutting columns (304) is respectively located in the corresponding through hole (305).

4. The wheelset spindle unloading device according to claim 1, characterized in that: The moving assembly includes a card slot (401), two card slots (401) are provided, and are respectively arranged on the opposite side walls of two fixed blocks (102), a screw rod (402) is provided in each of the two card slots (401), a motor (405) is provided at one end of each of the two screw rods (402), a slide seat (403) is sleeved on each of the two screw rods (402), a mounting frame (404) is provided between the two slide seats (403), and the two-way hydraulic telescopic rod (5) is arranged on the mounting frame (404).

5. The wheelset spindle removal device according to claim 1, characterized in that: The distance from the center of the second bidirectional hydraulic telescopic rod (5) to the top surface of the placement platform (101) is consistent with the distance from the axis center of the short axis (602) of the wheelset main axis at the top of the placement platform (101) to the top surface of the placement platform (101).

Images