Spinning motor belt pulley dismounting device

By designing a disassembly device for the spinning motor pulley, and utilizing a combination structure of a pull plate, a pull rod, and a hydraulic cylinder, the problems of high cost and insufficient pulling force in the existing technology are solved, thus achieving low-cost and high-efficiency pulley disassembly.

CN224169169UActive Publication Date: 2026-04-28FUJIAN XINCHUANG NYLON IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN XINCHUANG NYLON IND CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In the existing technology, ordinary pullers are costly and have insufficient pulling force when disassembling motor pulleys, while professional pullers are even more expensive, which hinders the disassembly process and fails to effectively reduce costs.

Method used

Design a device for disassembling a spinning motor pulley, including a pull plate, a pull rod, a base plate, and a pushing device. The device provides pulling force through a hydraulic cylinder or hydraulic jack, and enhances stability by utilizing the combined structure of the pull plate and the base plate, thereby achieving the disassembly of the pulley.

Benefits of technology

It enables low-cost and efficient pulley disassembly, reduces the economic cost of the disassembly process, and improves disassembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of belt pulley dismounting, in particular to a spinning motor belt pulley dismounting device which comprises a pull plate, four corners of the bottom of the pull plate are connected with a bottom plate through pull rods, and the pull plate comprises a first main mounting plate and a second main mounting plate which are arranged up and down; the first main mounting plate comprises two first mounting plates which are spliced with each other, and the second main mounting plate comprises two second mounting plates which are spliced with each other; semicircular openings are formed in one sides of the first mounting plates and the second mounting plates, the semicircular openings in the two first mounting plates are spliced to form a first circular channel, the semicircular openings in the two second mounting plates are spliced to form a second circular channel, and the first circular channel and the second circular channel are used for containing an output shaft of a motor. According to the utility model, the belt pulley can be detached from the motor, and the cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of belt pulley disassembly technology, and in particular to a belt pulley disassembly device for a spinning motor. Background Technology

[0002] The motor-pulley transmission method is a classic and widely used mechanical power transmission scheme, which uses the flexible connection of a belt to transmit power between the motor (driving pulley) and the driven pulley. This transmission method brings multiple benefits to industrial and household equipment, as well as transportation vehicles.

[0003] The pulley is an important component in the motor drive system, but in some cases it must be removed. The main reasons include: (1) replacing or maintaining the belt; (2) overhauling or replacing the motor; (3) adjusting the transmission parameters; (4) the pulley is damaged or loose; (5) cleaning and maintenance; (6) safety inspection or equipment modification.

[0004] When disassembling a motor pulley, a standard puller is typically used. However, these tools are not only expensive and costly, but they also sometimes provide insufficient pulling force, which can obstruct the disassembly process. Using a professional puller with stronger pulling force is even more expensive, further increasing the cost. Utility Model Content

[0005] The purpose of this invention is to provide a device for removing a spinning motor pulley, which can remove the pulley from the motor and reduce costs.

[0006] The technical solution of this utility model:

[0007] A device for disassembling a spinning motor pulley includes a pull plate, the four bottom corners of which are connected to a base plate via pull rods. The pull plate includes a first main mounting plate and a second main mounting plate arranged vertically. The first main mounting plate includes two first mounting plates spliced ​​together, and the second main mounting plate includes two second mounting plates spliced ​​together.

[0008] Both the first mounting plate and the second mounting plate have a semi-circular opening on one side. The semi-circular openings on the two first mounting plates are joined together to form a first circular channel, and the semi-circular openings on the two second mounting plates are joined together to form a second circular channel. The first circular channel and the second circular channel are used to accommodate the output shaft of the motor.

[0009] Furthermore, both the first and second main mounting plates are square in shape.

[0010] Furthermore, the splicing line A of the two first mounting plates is perpendicular to the splicing line B of the two second mounting plates, and the diameter of the first circular channel and the second circular channel are the same.

[0011] Furthermore, the upper end of the pull rod is threadedly connected to the pull plate, and the lower end is threadedly connected to the base plate.

[0012] Furthermore, the upper end of the pull rod extends above the pull plate, and the upper end of the pull rod has an upper thread, on which a first upper nut is screwed to both the upper and lower sides of the pull plate; the lower end of the pull rod extends below the base plate, and the lower end of the pull rod has a lower thread, on which a first lower nut is screwed to both the upper and lower sides of the base plate.

[0013] Furthermore, the second main mounting plate is connected to the first main mounting plate via a second bolt and a second upper nut.

[0014] Furthermore, a jacking device is fixed on the base plate, which is a hydraulic cylinder or a hydraulic jack.

[0015] Furthermore, the base plate has a placement groove for placing the jacking device.

[0016] Furthermore, the base plate has four spare threaded holes, and the pull plate also has four spare threaded holes.

[0017] The beneficial effects of this utility model are:

[0018] Two first mounting plates are joined together to form a first main mounting plate, and two second mounting plates are joined together to form a second main mounting plate. The first main mounting plate is then placed on top of the second main mounting plate with splicing lines A and B perpendicular to each other. This enhances the stability of the pull plate and facilitates better pulling of the pulley later.

[0019] This invention allows the pulley to be removed from the motor, thus reducing costs. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the first embodiment of the tie rod connection method;

[0022] Figure 3 This is a schematic diagram of the second embodiment of the tie rod connection method;

[0023] Figure 4 This is a schematic diagram of the splicing of two first mounting plates;

[0024] Figure 5 This is a schematic diagram of the splicing of two second mounting plates;

[0025] Figure 6 This is a structural diagram of splicing line A and splicing line B;

[0026] Figure 7 This is a diagram illustrating the usage status. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1-7 As shown, this utility model provides a first embodiment of a disassembly device for a spinning motor pulley, including a pull plate. The four bottom corners of the pull plate are connected to a base plate 2 via pull rods 1. The pull plate includes a first main mounting plate and a second main mounting plate arranged vertically. The first main mounting plate includes two first mounting plates 31 spliced ​​together, and the second main mounting plate includes two second mounting plates 32 spliced ​​together.

[0029] Both the first mounting plate 31 and the second mounting plate 32 have a semi-circular opening on one side. The semi-circular openings on the two first mounting plates 31 are joined together to form a first circular channel 33, and the semi-circular openings on the two second mounting plates 32 are joined together to form a second circular channel 34. The first circular channel 33 and the second circular channel 34 are used to accommodate the output shaft of the motor 100.

[0030] The splicing line A of the two first mounting plates 31 is perpendicular to the splicing line B of the two second mounting plates 32. The diameters of the first circular channel 33 and the second circular channel 34 are the same and smaller than the diameter of the pulley 200, facilitating the pulling plate's ability to pull out the pulley 200. The two first mounting plates 31 are spliced ​​together to form a first main mounting plate, and the two second mounting plates 32 are spliced ​​together to form a second main mounting plate. The first main mounting plate is then placed on top of the second main mounting plate with splicing lines A and B perpendicular to each other. This enhances the stability of the pulling plate and facilitates better subsequent pulling of the pulley 200.

[0031] The upper end of the pull rod 1 is threadedly connected to the pull plate, and the lower end is threadedly connected to the base plate 2. Both the pull plate and the base plate 2 are provided with threaded holes 35 for easy disassembly and assembly.

[0032] Two first mounting plates 31 and two second mounting plates 32 are spliced ​​onto the output shaft between the motor 100 and the pulley 200, so that the output shaft passes through the first circular channel 33 and the second circular channel 34. Then, the upper end of the pull rod 1 is connected to the first mounting plate 31 and the second mounting plate 32, and the bottom plate 2 is connected to the lower end of the pull rod 1. Then, the pushing device 8 is set on the bottom plate 2 by bolt connection, so that the push rod of the pushing device 8 passes through the mounting hole of the pulley 200 and pushes the output shaft, so that the bottom plate 2 transmits the pulling force to the pull rod 1, and the pull rod 1 transmits the pulling force to the pull plate to pull the pulley 200 out of the output shaft.

[0033] Based on the first embodiment, this utility model provides a second embodiment of the disassembly device for the pulley 200 of the spinning motor 100. The first and second main mounting plates are both square in shape, so that the dimensions of the first and second main mounting plates can match during installation.

[0034] Based on any of the above embodiments, this utility model provides a third embodiment of the disassembly device for the pulley 200 of the spinning motor 100. The upper end of the pull rod 1 extends above the pull plate, and the upper end of the pull rod 1 has an upper thread 101. First upper nuts 4 are screwed onto the upper thread 101 on both the upper and lower sides of the pull plate. The lower end of the pull rod 1 extends below the base plate 2, and the lower end of the pull rod 1 has a lower thread 102. First lower nuts 5 are screwed onto the lower thread 102 on both the upper and lower sides of the base plate 2. The first upper nuts 4 strengthen the connection between the pull rod 1 and the pull plate, and the first lower nuts 5 strengthen the connection between the pull rod 1 and the base plate 2.

[0035] Based on any of the above embodiments, this utility model provides a fourth embodiment of a disassembly device for a spinning motor 100 pulley 200, wherein the second main mounting plate is connected to the first main mounting plate via a second bolt 6 and a second upper nut 7, which can strengthen the strength of the pull plate.

[0036] Based on any of the above embodiments, this utility model provides a fifth embodiment of a disassembly device for a spinning motor 100 pulley 200, wherein a pushing device 8 is fixed on the base plate 2, and the pushing device is a hydraulic cylinder or a hydraulic jack. The base plate 2 has a placement groove 9 for placing the pushing device.

[0037] Based on any of the above embodiments, this utility model provides a fifth embodiment of a disassembly device for a spinning motor 100 pulley 200. The base plate 2 is provided with four spare threaded holes 10, and the pull plate is also provided with four spare threaded holes 10. When a small pulley 200 is needed, a small pull rod 1 is used to connect with the spare threaded holes 10.

[0038] The hydraulic cylinder and hydraulic jack in this utility model are existing technologies, which are already clearly understood by those skilled in the art, and will not be described in detail here.

[0039] The above description is only a preferred embodiment of the present utility model and should not be construed as a limitation of this application. All equivalent changes and modifications made within the scope of the patent application of the present utility model should be included in the scope of the present utility model.

Claims

1. A device for disassembling a spinning motor pulley, comprising a pull plate, wherein the bottom four corners of the pull plate are connected to a base plate via pull rods, characterized in that, The pull plate includes a first main mounting plate and a second main mounting plate arranged vertically; the first main mounting plate includes two first mounting plates spliced ​​together, and the second main mounting plate includes two second mounting plates spliced ​​together. Both the first mounting plate and the second mounting plate have a semi-circular opening on one side. The semi-circular openings on the two first mounting plates are joined together to form a first circular channel, and the semi-circular openings on the two second mounting plates are joined together to form a second circular channel. The first circular channel and the second circular channel are used to accommodate the output shaft of the motor.

2. The spinning motor pulley disassembly device according to claim 1, characterized in that, Both the first and second main mounting plates are square in shape.

3. A spinning motor pulley disassembly device according to claim 1 or 2, characterized in that, The splicing line A of the two first mounting plates is perpendicular to the splicing line B of the two second mounting plates, and the diameter of the first circular channel and the second circular channel are the same.

4. The spinning motor pulley disassembly device according to claim 1, characterized in that, The upper end of the pull rod is threaded to the pull plate, and the lower end is threaded to the base plate.

5. The spinning motor pulley disassembly device according to claim 4, characterized in that, The upper end of the pull rod extends above the pull plate, and the upper end of the pull rod has an upper thread. A first upper nut is screwed onto the upper thread on both the upper and lower sides of the pull plate. The lower end of the pull rod extends below the base plate, and the lower end of the pull rod has a lower thread. A first lower nut is screwed onto the lower thread on both the upper and lower sides of the base plate.

6. The spinning motor pulley disassembly device according to claim 1, characterized in that, The second main mounting plate is connected to the first main mounting plate via the second bolt and the second upper nut.

7. The spinning motor pulley disassembly device according to claim 1, characterized in that, A jacking device, which is a hydraulic cylinder or a hydraulic jack, is fixed on the base plate.

8. The spinning motor pulley disassembly device according to claim 7, characterized in that, The base plate has a slot for placing the jacking device.

9. The spinning motor pulley disassembly device according to claim 1, characterized in that, The base plate has four spare threaded holes, and the pull plate also has four spare threaded holes.