Motor rotor bearing dismounting tool

Abstract

The utility model relates to a motor rotor bearing dismounting tool, and belongs to the technical field of bearing dismounting. Comprising a fixing frame, the fixing frame is of a horizontally-arranged square frame structure, and four vertical supporting legs are fixedly arranged on the lower end face of the fixing frame; a horizontal track rod is fixedly arranged between the middle parts of the front and rear support legs on the left and right sides respectively, and a dismounting trolley capable of moving back and forth is arranged on the two track rods; a mold plate on the rear side and an oil cylinder supporting plate on the front side are fixedly arranged on the inner side of the fixing frame, a clamping groove is formed in the upper end of the mold plate, a U-shaped groove is formed in the upper end of the oil cylinder supporting plate, a driving assembly is arranged on the front side of the fixing frame and comprises a hydraulic cylinder, and the hydraulic cylinder is fixedly arranged in the U-shaped groove. A piston rod of the hydraulic cylinder horizontally and backwards faces the clamping groove of the mold plate; the problem that the bearing is easy to damage when the existing motor rotor bearing is disassembled is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing disassembly, and in particular relates to a motor rotor bearing disassembly tool. Background Art

[0002] Among all the manufacturing companies nowadays, no company can operate production without motors. As the core of the production and operation of an enterprise, the safe operation of the motor is directly related to the economic benefits of the enterprise. Therefore, the enterprise has higher requirements for the maintenance and repair of motors.

[0003] At present, in the process of motor maintenance, the motor needs to be disassembled first. In the process of disassembly, the bearings at both ends of the motor rotor need to be disassembled first. The traditional method is to use a puller to pull and disassemble the motor rotor bearings, but this has a disadvantage: during the maintenance of most motors, the bearings are often in an undamaged state. In the process of using the puller to pull, the motor bearings are often easily damaged, and new bearings have to be purchased again, which increases the cost of maintenance. The existing disassembly workpiece can only be used for specific bearings of a certain diameter, and the application range is narrow. In addition, during the disassembly of the bearing, the bearing is prone to deflection and stuck on the shaft, resulting in poor use effect and low work efficiency.

[0004] For this reason, in view of the above-mentioned problems, it is necessary to provide a novel disassembly tool. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a motor rotor bearing disassembly tool, thereby solving the problem that the motor rotor bearing is easily damaged during disassembly.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions.

[0007] A motor rotor bearing disassembly tool comprises a fixed frame, which is a horizontally arranged square frame structure, and four vertical legs are fixedly arranged on the lower end surface of the fixed frame; a horizontal track rod is fixedly arranged between the middle parts of the front and rear legs on the left and right sides, and a disassembly trolley that can move forward and backward is arranged on the two track rods; a rear mold plate and a front cylinder support plate are fixedly arranged on the inner side of the fixed frame, a groove is arranged on the upper end of the mold plate, and a U-shaped groove is arranged on the upper end of the cylinder support plate, and a driving assembly is arranged on the front side of the fixed frame, and the driving assembly includes a hydraulic cylinder, which is fixedly arranged inside the U-shaped groove, and the piston rod of the hydraulic cylinder is horizontally backward toward the groove of the mold plate.

[0008] Furthermore, a horizontal crossbeam is fixedly arranged between the middle parts of the two front legs, and a horizontal crossbeam is fixedly arranged between the middle parts of the two rear legs, and the front and rear crossbeams are used to reinforce the legs.

[0009] Furthermore, the two track rods are symmetrical; the cross-section of the track rod is an L-shaped structure, including a vertical plate and a horizontal plate, and the lower edge of the vertical plate is fixedly connected to the edge of one side of the horizontal plate away from the other track rod.

[0010] Furthermore, a track baffle is fixedly arranged in the middle of the two track rods, and the track baffle is arranged horizontally along the left-right direction.

[0011] Furthermore, the disassembly trolley is placed on the track rod between the middle track baffle and the rear crossbeam.

[0012] Furthermore, the disassembly trolley includes a lower box body, which is a square box body structure, and two front and rear rollers are rotatably arranged on the left and right end surfaces of the lower box body, and the left and right rollers are respectively located on the horizontal plates of the left and right track rods; two front-to-back symmetrical arc-shaped support plates are fixedly arranged on the upper end surface of the lower box body, and the arc-shaped support plates are vertically arranged along the left and right directions, and a semicircular fixing groove is arranged in the middle of the upper end edge of the arc-shaped support plate; an arc-shaped plate is fixedly arranged in the fixing grooves of the front and rear arc-shaped support plates, and the arc-shaped plate is a semi-cylindrical structure with openings at both ends, and the axis of the arc-shaped plate is horizontally arranged along the front-to-back direction.

[0013] Furthermore, the mold plate is vertically arranged along the left-right direction, and the left and right ends of the mold plate are fixedly connected to the left and right inner walls of the fixed frame respectively, and the mold plate is located in the middle of the fixed frame along the front-back direction.

[0014] Furthermore, the oil cylinder support plate is vertically arranged along the left-right direction, and the left and right end edges of the oil cylinder support plate are fixedly connected to the left and right inner walls of the fixed frame respectively.

[0015] Furthermore, the drive assembly also includes a motor, a hydraulic pump, and an oil tank. The output shaft of the motor is fixedly connected to the input shaft of the hydraulic pump, the oil suction port of the hydraulic pump is connected to the oil tank, the oil pressure port of the hydraulic pump is connected to the oil inlet of the hydraulic pump, and the oil outlet of the hydraulic pump is connected to the oil tank.

[0016] Furthermore, a vertical plate is fixedly provided on the front side of the left end face of the fixed frame, an electrical box is fixedly provided on the vertical plate, a controller is provided inside the electrical box, and the controller is electrically connected to the motor.

[0017] The beneficial effects of the utility model compared with the prior art are:

[0018] The utility model provides a motor rotor bearing disassembly tool, which enables the motor rotor bearing to be smoothly disassembled without damaging the bearing through the interaction between a mold plate and a piston rod of a hydraulic cylinder; during the disassembly process, the motor rotor is always moved on a disassembly trolley, thereby ensuring the movement stability of the motor rotor without affecting the disassembly of the bearing; different mold plates can be selected according to the size of the motor rotor, so that the bearing can be quickly disassembled more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0022] Figure 3 It is a schematic diagram of the structure of the disassembly trolley;

[0023] Among them, 1 is a fixed frame, 2 is a support leg, 3 is a crossbeam, 4 is a track rod, 5 is a track baffle, 6 is a disassembly trolley, 7 is a lower box, 8 is a roller, 9 is an arc support plate, 10 is an arc plate, 11 is a mold plate, 12 is a cylinder support plate, 13 is a motor, 14 is an oil tank, 15 is a hydraulic cylinder, 16 is a vertical plate, and 17 is an electrical box. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0025] like Figure 1 As shown in FIG. 3 , the utility model provides a motor rotor bearing removal tool, including a fixed frame 1, which is a horizontally arranged square frame structure, and four vertical legs 2 are fixedly arranged on the lower end surface of the fixed frame 1. The four legs 2 are arranged in a square array, and the fixed frame 1 is supported by the four legs 2. A horizontal crossbeam 3 is fixedly arranged between the middle parts of the two front legs 2, and a horizontal crossbeam 3 is fixedly arranged between the middle parts of the two rear legs 2. The front and rear crossbeams 3 are used to reinforce the legs 2.

[0026] A horizontal track rod 4 is fixedly arranged between the middle parts of the front and rear legs 2 on the left side, and a horizontal track rod 4 is fixedly arranged between the middle parts of the front and rear legs 2 on the right side, and the two track rods 4 are symmetrical. The cross section of the track rod 4 is an L-shaped structure, including a vertical plate and a horizontal plate, and the lower edge of the vertical plate is fixedly connected to the edge of the side of the horizontal plate away from the other track rod 4. A track baffle 5 is fixedly arranged in the middle of the two track rods 4, and the track baffle 5 is arranged horizontally along the left and right directions.

[0027] A disassembly trolley 6 that can move forward and backward is placed on the track rod 4 between the middle track baffle 5 and the rear crossbeam 3. The disassembly trolley 6 includes a lower box body 7, which is a square box structure. Two front and rear rollers 8 are rotatably arranged on the left and right side end surfaces of the lower box body 7, respectively. The left and right side rollers 8 are respectively located on the horizontal plates of the left and right track rods 4. The front and rear movement of the disassembly trolley 6 on the two track rods 4 is achieved by the rollers 8 rolling on the end surfaces of the two horizontal plates. Two front and rear symmetrical arc support plates 9 are fixedly arranged on the upper end surface of the lower box body 7. The arc support plates 9 are vertically arranged along the left and right directions, and a semicircular fixing groove is arranged in the middle of the upper edge of the arc support plates 9. An arc plate 10 is fixedly arranged in the fixing groove of the front and rear arc support plates 9. The arc plate 10 is a semi-cylindrical structure with openings at both ends, and the axis of the arc plate 10 is horizontally arranged along the front and rear directions.

[0028] A mold plate 11 is fixedly arranged inside the fixed frame 1. The mold plate 11 is arranged vertically along the left-right direction. The left and right ends of the mold plate 11 are respectively fixedly connected to the left and right inner walls of the fixed frame 1. The mold plate 11 is located in the middle of the fixed frame 1 along the front-back direction. A card slot is arranged in the middle of the upper edge of the mold plate 11.

[0029] A cylinder support plate 12 is also fixedly arranged on the inner side of the fixed frame 1. The cylinder support plate 12 is located on the front side of the mold plate 11. The cylinder support plate 12 is vertically arranged along the left and right directions. The left and right end edges of the cylinder support plate 12 are respectively fixedly connected to the left and right inner walls of the fixed frame 1. A U-shaped groove is arranged in the middle of the upper end surface of the cylinder support plate 12.

[0030] A driving assembly is fixedly arranged on the front side of the fixed frame 1, and the driving assembly includes a motor 13, a hydraulic pump, an oil tank 14, and a hydraulic cylinder 15. The output shaft of the motor 13 is fixedly connected to the input shaft of the hydraulic pump, the oil suction port of the hydraulic pump is connected to the oil tank 14, the oil pressure port of the hydraulic pump is connected to the oil inlet of the hydraulic pump, and the oil outlet of the hydraulic pump is connected to the oil tank 14. The cylinder body of the hydraulic cylinder 15 is fixedly arranged inside the U-shaped groove of the cylinder support plate 12, and the piston rod of the hydraulic cylinder 15 is horizontally backward toward the slot of the mold plate 11.

[0031] A vertical plate 16 is fixedly disposed on the front side of the left end surface of the fixed frame 1 , and an electrical box 17 is fixedly disposed on the vertical plate 16 . A controller is disposed inside the electrical box 17 , and the controller is electrically connected to the motor 13 .

[0032] The working principle of the utility model is:

[0033] In actual use, first remove the end covers at both ends of the motor 13 and take out the rotor of the motor 13. If the bearing is not damaged, it can continue to be used. Be careful to protect the bearing.

[0034] Place the removed motor 13 rotor inside the arc plate 10 of the disassembly trolley 6, with the bearing end to be disassembled facing forward, and place the bearing part in the slot of the mold plate 11. The size of the slot can be selected according to the size of the bearing.

[0035] After placement, the rotor height is appropriately adjusted according to the size of the rotor so that the rotor of the motor 13 and the piston rod of the hydraulic cylinder 15 are kept at the same horizontal line to facilitate the removal of the bearing.

[0036] Place the piston rod end of the hydraulic cylinder 15 against the shaft end of the motor 13 rotor, turn on the control switch of the electrical box 17, start the motor 13, control the piston rod of the hydraulic cylinder 15 to extend outward, and the motor 13 rotor together with the disassembly trolley 6 retreats backwards, and the rotor bearing of the motor 13 can be removed.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A motor rotor bearing removal tool, characterized in that: The invention comprises a fixed frame (1), wherein the fixed frame (1) is a horizontally arranged square frame structure, and four vertical legs (2) are fixedly arranged on the lower end surface of the fixed frame (1); a horizontal track rod (4) is fixedly arranged between the middle parts of the front and rear legs (2) on the left and right sides, and a disassembly trolley (6) that can move forward and backward is arranged on the two track rods (4); a rear mold plate (11) and a front cylinder support plate (12) are fixedly arranged on the inner side of the fixed frame (1), a slot is arranged on the upper end of the mold plate (11), and a U-shaped slot is arranged on the upper end of the cylinder support plate (12); a driving assembly is arranged on the front side of the fixed frame (1), and the driving assembly comprises a hydraulic cylinder (15), and the hydraulic cylinder (15) is fixedly arranged inside the U-shaped slot, and the piston rod of the hydraulic cylinder (15) is horizontally backward toward the slot of the mold plate (11).

2. A motor rotor bearing removal tool according to claim 1, characterized in that: A horizontal crossbeam (3) is fixedly arranged between the middle parts of the two front legs (2), and a horizontal crossbeam (3) is fixedly arranged between the middle parts of the two rear legs (2), and the front and rear crossbeams (3) are used to reinforce the legs (2).

3. A motor rotor bearing removal tool according to claim 2, characterized in that: The two track rods (4) are bilaterally symmetrical; the cross section of the track rod (4) is an L-shaped structure, comprising a vertical plate and a horizontal plate, wherein the lower edge of the vertical plate is fixedly connected to an edge of a side of the horizontal plate away from the other track rod (4).

4. A motor rotor bearing removal tool according to claim 3, characterized in that: A track baffle (5) is fixedly arranged in the middle of the two track rods (4), and the track baffle (5) is arranged horizontally along the left-right direction.

5. A motor rotor bearing removal tool according to claim 4, characterized in that: The disassembly trolley (6) is placed on the track rod (4) between the middle track baffle (5) and the rear crossbeam (3).

6. A motor rotor bearing removal tool according to claim 5, characterized in that: The disassembly trolley (6) comprises a lower box body (7), the lower box body (7) is a square box body structure, and two front and rear rollers (8) are rotatably arranged on the left and right side end surfaces of the lower box body (7), and the left and right side rollers (8) are respectively located on the horizontal plates of the left and right track rods (4); two front and rear symmetrical arc-shaped support plates (9) are fixedly arranged on the upper end surface of the lower box body (7), the arc-shaped support plates (9) are vertically arranged along the left and right directions, and a semicircular fixing groove is arranged in the middle of the upper end edge of the arc-shaped support plates (9); an arc-shaped plate (10) is fixedly arranged in the fixing grooves of the front and rear arc-shaped support plates (9), and the arc-shaped plate (10) is a semi-cylindrical structure with openings at both ends, and the axis of the arc-shaped plate (10) is horizontally arranged along the front and rear directions.

7. The motor rotor bearing removal tool according to claim 1, characterized in that: The mold plate (11) is arranged vertically along the left-right direction, and the left and right ends of the mold plate (11) are respectively fixedly connected to the left and right inner walls of the fixed frame (1), and the mold plate (11) is located in the middle of the fixed frame (1) along the front-back direction.

8. The motor rotor bearing removal tool according to claim 1, characterized in that: The oil cylinder support plate (12) is vertically arranged along the left-right direction, and the left and right end edges of the oil cylinder support plate (12) are respectively fixedly connected to the left and right inner walls of the fixed frame (1).

9. The motor rotor bearing removal tool according to claim 1, characterized in that: The drive assembly further comprises a motor (13), a hydraulic pump, and an oil tank (14); an output shaft of the motor (13) is fixedly connected to an input shaft of the hydraulic pump, an oil suction port of the hydraulic pump is connected to the oil tank (14), an oil pressure port of the hydraulic pump is connected to an oil inlet of the hydraulic pump, and an oil outlet of the hydraulic pump is connected to the oil tank (14).

10. A motor rotor bearing removal tool according to claim 9, characterized in that: A vertical plate (16) is fixedly arranged on the front side of the left end surface of the fixed frame (1), an electrical box (17) is fixedly arranged on the vertical plate (16), a controller is arranged inside the electrical box (17), and the controller is electrically connected to the motor (13).

Images