Waste motor rotor bearing disassembling device

Abstract

The utility model relates to the technical field of waste motor recovery, and provides a waste motor rotor bearing disassembling device which comprises a disassembling mechanism, the disassembling mechanism comprises a positioning shaft, the center of the positioning shaft is provided with a containing hole used for containing a mandrel, and the end of the containing hole is provided with a containing groove used for containing a bearing; the pull claws are arranged in the circumferential direction of the positioning shaft at intervals, the tails of the pull claws are hinged to the positioning shaft, springs are fixedly connected between the middles of the pull claws and the positioning shaft, and the pull claws can grasp the end face of the bearing in the containing groove after being folded; the driving part is connected with the positioning shaft and used for driving the positioning shaft to do reciprocating rectilinear motion; and the baffle ring is used for blocking the rotor, is fixedly arranged outside the mandrel and is provided with extrusion grooves for extruding the pull claws, so that the heads of the pull claws are extruded when the pull claws move, and the pull claws are promoted to be closed. A clamping mechanism for clamping and fixing the core shaft (or the rotor) is not needed, the structure is simplified, only the core shaft needs to be inserted into the positioning shaft, operation is simpler, and disassembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste motor recycling, in particular to a waste motor rotor bearing disassembly device. Background Art

[0002] In the motor, such as Figure 1 As shown, the rotor 12 and the core shaft 14 are fixedly connected together to form a whole, and bearings 13 are sleeved on the core shaft 14 at both ends of the rotor 12. When recycling waste motors, in order to promote the reuse of resources, the bearings 13 are usually disassembled and recycled.

[0003] At present, bearings are usually disassembled by using a clamping mechanism to clamp the core shaft (or rotor), and then pulling out the bearing through a tool (such as a puller). This method not only requires the design of a clamping mechanism for clamping the core shaft (or rotor), which has a complex structure, but also requires the clamping mechanism to be repeatedly loosened and clamped each time a bearing is disassembled, and then the disassembly is performed, which is inefficient. Utility Model Content

[0004] The utility model aims to provide a device for disassembling a waste motor rotor bearing to solve the above-mentioned defects of the prior art.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A dismantling device for a waste motor rotor bearing comprises a dismantling mechanism, wherein the dismantling mechanism comprises:

[0007] A positioning shaft, the center of which is provided with a receiving hole for receiving the core shaft, and the end of the receiving hole is provided with a placement groove for placing the bearing;

[0008] A plurality of pull claws are arranged at intervals along the circumferential direction of the positioning shaft, the tail of the pull claw is hinged with the positioning shaft, a spring is fixedly connected between the middle of the pull claw and the positioning shaft, and each pull claw can grasp the end face of the bearing in the placement groove when closed;

[0009] A driving component connected to the positioning shaft and used to drive the positioning shaft to reciprocate linearly; and

[0010] The retaining ring is used to block the rotor. The retaining ring is fixedly arranged outside the core shaft and is provided with an extrusion groove for extruding the claws, so as to squeeze the claw heads when the claws move, so as to force each claw to close.

[0011] Optionally, the disassembling mechanism further includes a guide cylinder, the positioning shaft is slidably disposed inside the guide cylinder, the retaining ring is connected to one end of the guide cylinder, and the driving component is installed at the other end of the guide cylinder.

[0012] Optionally, the inner wall of the guide cylinder is provided with a guide groove for the pulling claw to slide.

[0013] Optionally, a position sensor is fixedly provided on one side of the positioning shaft, and a position sensing block is provided on the positioning shaft.

[0014] Optionally, the depth of the placement groove is smaller than the width of the bearing.

[0015] Optionally, the diameter of the placement groove is equal to the outer diameter of the bearing.

[0016] Optionally, the driving component is a hydraulic cylinder.

[0017] Optionally, a hopper is provided below the placement trough.

[0018] The technical solution of this utility model has at least the following advantages and beneficial effects: In the utility model, when disassembling the bearing, the mandrel of the waste motor is inserted into the receiving hole and the bearing is embedded in the placement groove. The driving component drives the positioning shaft to move, driving the claw to move in the direction away from the bearing. When the claw moves, it is squeezed by the extrusion groove on the retaining ring, causing each claw to close, thereby grasping the end face of the bearing in the placement groove. At this time, the rotor of the waste motor moves with the claw. After the claw passes over the retaining ring, the rotor is blocked by the retaining ring. In this way, the disassembly of one bearing is realized, and then the claw is reset, and the mandrel is reversed and inserted into the receiving hole. Repeat the above operation to disassemble another bearing. Compared with the prior art, there is no need for a clamping mechanism to clamp the fixed mandrel (or rotor), which simplifies the structure. It only needs to insert the mandrel into the positioning shaft, which is simpler to operate and improves the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a waste motor rotor bearing;

[0021] Figure 2 A schematic diagram of the structure of a waste motor rotor bearing disassembly device provided by the utility model;

[0022] Figure 3 It is a structural diagram of the dismantling mechanism;

[0023] Figure 4 is a cross-sectional view of the disassembled mechanism;

[0024] Figure 5 It is a structural schematic diagram of the guide cylinder;

[0025] Icons: 100-disassembly mechanism, 1-positioning shaft, 101-accommodating hole, 102-placing slot, 2-pulling claw, 3-spring, 4-driving component, 5-blocking ring, 6-guide cylinder, 601-guide slot, 7-position sensor, 8-position sensing block, 9-hydraulic station, 10-foot switch, 11-hopper, 12-rotor, 13-bearing, 14-core shaft, 200-frame. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] A dismantling device for a waste motor rotor bearing, comprising a dismantling mechanism, reference Figure 3-5 The disassembly mechanism includes a positioning shaft 1, a pulling claw 2, a driving component 4 and a retaining ring 5. A receiving hole 101 for receiving the core shaft 14 is provided at the center of the positioning shaft 1, and a placement groove 102 for receiving the bearing 13 is provided at the end of the receiving hole 101. In this embodiment, the depth of the placement groove 102 is less than the width of the bearing 13. In actual application, the depth of the placement groove 102 can be much smaller than the width of the bearing 13, so that the bearing 13 can automatically fall out of the placement groove 102 under the action of gravity after disassembly, and even if the bearing 13 does not fall out, the above arrangement also makes the bearing 13 partially exposed outside the placement groove 102, which is convenient for manual removal. Furthermore, the diameter of the placement groove 102 is equal to the outer diameter of the bearing 13, which is convenient for positioning. On this basis, the diameter of the receiving hole 101 can be greater than or equal to the diameter of the waste motor core shaft 14.

[0029] Several claws 2 are arranged at intervals along the circumferential direction of the positioning shaft 1. For example, in this embodiment, four claws 2 are arranged. Of course, other embodiments may also arrange three, five or more claws. The tail of the claw 2 is hinged to the positioning shaft 1, and a spring 3 is fixedly connected between the middle of the claw 2 and the positioning shaft 1. The tail of the claw 2 refers to the end of the claw 2 without claws, and the head of the claw 2 refers to the end with claws. On this basis, it is easy to understand that when the head of the claw 2 is squeezed, the spring 3 will be compressed, and each claw 2 will close (i.e., it acts like fingers grabbing an object).

[0030] The retaining ring 5 is fixedly arranged outside the core shaft 14 and is provided with an extrusion groove for squeezing the claw 2. The driving component 4 is connected to the positioning shaft 1 and is used to drive the positioning shaft 1 to reciprocate linearly. When disassembling the bearing 13, the core shaft 14 of the waste motor is inserted into the receiving hole 101 and the bearing 13 is embedded in the placement groove 102. The driving component 4 drives the positioning shaft 1 to move, driving the claw 2 to move in a direction away from the bearing 13. When the claw 2 moves, the head is squeezed by the extrusion groove on the retaining ring 5, which causes each claw 2 to close. The pull claw 2 is pulled together to catch the end face of the bearing 13 in the placement groove 102. At this time, the rotor 12 of the waste motor moves with the pull claw 2. After the pull claw 2 passes over the retaining ring 5, the rotor 12 is blocked by the retaining ring 5. The bearing 13 continues to move under the action of the pull claw 2, and the bearing 13 can be pulled off the core shaft 14 to achieve disassembly. After the bearing 13 is pulled off, it is restricted in the placement groove 102 by the pull claw 2. Then the positioning shaft 1 is moved in the opposite direction through the driving component 4, so that the pull claw 2 is reset, and the bearing 13 can fall out of the placement groove 102. Then the core shaft 14 is reversed and inserted into the receiving hole 101. Repeat the above operation to disassemble another bearing 13. Compared with the prior art, there is no need to clamp the clamping mechanism to fix the core shaft 14 (or rotor 12), which simplifies the structure. It only needs to insert the core shaft 14 into the positioning shaft 1, which is simpler to operate and improves the disassembly efficiency.

[0031] On the basis of the above, the disassembling mechanism 100 of this embodiment further includes a guide cylinder 6, and the positioning shaft 1 is slidably arranged inside the guide cylinder 6, that is, the guide cylinder 6 plays a guiding role for the movement of the positioning shaft 1, the retaining ring 5 is connected (for example, screwed) to one end of the guide cylinder 6, and the driving component 4 is installed at the other end of the guide cylinder 6. Further, the inner wall of the guide cylinder 6 of this embodiment is provided with a guide groove 601 for the sliding of the pulling claw 2, so that the positioning shaft 1 and the pulling claw 2 can be restricted from rotating relative to the guide cylinder 6 as a whole.

[0032] refer to Figure 2 In actual application, the guide cylinder 6 is fixedly connected to the frame 200, and the frame 200 and the disassembling mechanism 100 together constitute a disassembling device. A hopper 11 is provided below the placement groove 102 for receiving the disassembled bearing 13.

[0033] A position sensor 7 is fixedly provided on one side of the positioning shaft 1, and a position sensing block 8 is provided on the positioning shaft 1. Specifically, the position sensing block 8 is connected with a connecting rod, and the connecting rod is connected to the positioning shaft 1 by a thread. The side wall of the guide cylinder 6 is provided with an avoidance groove for avoiding the connecting rod. The position sensor 7 is installed on the frame 200. It should be understood that in actual applications, the actual position of the position sensor 7 is determined according to the desired position of the positioning shaft 1. It is easy to understand that in some embodiments, the position sensor 7 is installed on the positioning shaft 1, and the position sensing block 8 is installed on the frame 200, which should also belong to equal replacement.

[0034] In this embodiment, the driving component 4 is a hydraulic cylinder, and a hydraulic station 9 for supplying oil to the hydraulic cylinder is installed on the frame 200. The hydraulic station 9 supplies oil to and returns oil to the hydraulic cylinder through an oil pipe. In practical applications, a foot switch 10 can also be provided to control the start of the hydraulic cylinder. Of course, in other embodiments, a button switch can also be provided for control.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dismantling device for a waste motor rotor bearing, comprising a dismantling mechanism (100), characterized in that: The disassembling mechanism (100) comprises: A positioning shaft (1) having a receiving hole (101) at its center for receiving a core shaft (14), and a placement groove (102) for receiving a bearing (13) at the end of the receiving hole (101); A plurality of pull claws (2) are arranged at intervals along the circumferential direction of the positioning shaft (1); the tail of the pull claw (2) is hinged to the positioning shaft (1); a spring (3) is fixedly connected between the middle of the pull claw (2) and the positioning shaft (1); and each pull claw (2) can grasp the end surface of the bearing (13) in the placement groove (102) when closed; A driving component (4) connected to the positioning shaft (1) and used to drive the positioning shaft (1) to reciprocate linearly; and A retaining ring (5) is used to block the rotor (12). The retaining ring (5) is fixedly arranged outside the core shaft (14) and is provided with an extrusion groove for extruding the pulling claw (2) so as to squeeze the head of the pulling claw (2) when the pulling claw (2) moves, thereby causing each pulling claw (2) to close.

2. The device for dismantling the rotor bearing of a waste motor according to claim 1 is characterized in that: The disassembling mechanism (100) further comprises a guide cylinder (6), the positioning shaft (1) is slidably arranged inside the guide cylinder (6), the retaining ring (5) is connected to one end of the guide cylinder (6), and the driving component (4) is installed at the other end of the guide cylinder (6).

3. The device for dismantling the rotor bearing of a waste motor according to claim 2 is characterized in that: The inner wall of the guide cylinder (6) is provided with a guide groove (601) for the pulling claw (2) to slide.

4. The device for dismantling waste motor rotor bearings according to claim 1 is characterized in that: A position sensor (7) is fixedly arranged on one side of the positioning shaft (1), and a position sensing block (8) is arranged on the positioning shaft (1).

5. The device for dismantling waste motor rotor bearings according to any one of claims 1 to 4, characterized in that: The depth of the placement groove (102) is smaller than the width of the bearing (13).

6. The device for dismantling waste motor rotor bearings according to any one of claims 1 to 4, characterized in that: The diameter of the placement groove (102) is equal to the outer diameter of the bearing (13).

7. The device for dismantling waste motor rotor bearings according to any one of claims 1 to 4, characterized in that: The driving component (4) is a hydraulic cylinder.

8. The device for dismantling waste motor rotor bearings according to any one of claims 1 to 4, characterized in that: A hopper (11) is provided below the placement tank (102).

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