CN218052422U

CN218052422U - Motor belt pulley and shaft sleeve dismounting device

Info

Publication number: CN218052422U
Application number: CN202221944127.5U
Authority: CN
Inventors: 杨国宏; 于学红; 刘守朝; 曹瑶; 高英晗; 杨振东
Original assignee: China Petroleum and Chemical Corp; Sinopec Northwest Oil Field Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Northwest Oil Field Co
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-12-16
Anticipated expiration: 2032-07-26

Abstract

The utility model provides a motor belt pulley and shaft sleeve dismounting device, which comprises a connecting sleeve, a jackscrew and a hydraulic cylinder, wherein the connecting sleeve is annular, one end of the connecting sleeve can be connected with the shaft sleeve of the motor belt pulley through a screw thread, and the other end of the connecting sleeve is connected with the hydraulic cylinder; the hydraulic cylinder comprises a main body part serving as a cylinder body and a piston positioned in the cylinder body, and the front end of the main body part is connected with the other end of the connecting sleeve; the tail end of the jackscrew is arranged on the piston, and the front end of the jackscrew extends out of the main body part to extend into the cavity of the connecting sleeve and can be pressed against the shaft end of the motor shaft through adjustment. The device can dismantle belt pulley and axle sleeve under any extreme condition, improvement work efficiency that not only can be by a wide margin reduces equipment cost of maintenance, can also promote the essential safety of personnel and equipment simultaneously, reduces hidden danger and risk that exist in the operation, and easy operation all can use on power equipment, breaks through the trade restriction, has wide popularization and application prospect.

Description

Motor belt pulley and shaft sleeve dismounting device

Technical Field

The utility model relates to a motor belt pulley, axle sleeve dismounting device belongs to motor maintenance and uses instrument technical field.

Background

As oil fields are continuously developed, various power equipment is gradually increased. Because the field requirements or the production technology requirements and the like gradually increase aiming at the adjustment working system or the parameter frequency of the field operation power equipment, the requirements on the efficiency of the field operation, the maintenance and the like of the motor of the field power equipment are higher and higher. The motor dismounting the pulley is the most time and labor consuming part of all operations. The traditional method for disassembling the belt pulley mainly comprises the steps of pulling the belt pulley by using a three-jaw pulley puller, if the belt pulley cannot be disassembled by using the three-jaw pulley puller, using a large hammer to shock, and finally using open fire to heat or cut when the belt pulley cannot be disassembled, and replacing the belt pulley again, so that the waste of the belt pulley is caused. The traditional operation method is rough and simple, and operation errors easily damage the motor belt pulley, so that the motor belt pulley cannot be used or maintained.

The motor shaft used in the oil field is mainly provided with a shaft sleeve and a belt pulley. Because the oil field uses the motor most all in single well or outdoor, expose in comparatively bad weather environment for a long time, perhaps because the motor still can appear belt pulley and axle sleeve faying face because of relative displacement produces the friction and causes the adhesion for a long time in service life, use traditional method three-jaw pulley extractor can't pull out the motor belt pulley, traditional operating method exposes the shortcoming gradually under this kind of condition: 1. the workpiece can not be taken out, the labor intensity is high, and the working efficiency is low; 2. the belt pulley is damaged, so that the maintenance cost of equipment is increased; 3. the production timeliness and the working progress are influenced in the key period of increasing, storing and producing production, and the single operation benefit is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the unable harmless dismantlement motor belt pulley of traditional operation mode/method, increase equipment cost of maintenance and operating personnel safety risk, intensity of labour is big, can't reach technical problem such as efficiency of production demand, the utility model provides a motor belt pulley, axle sleeve dismounting device.

The technical scheme of the utility model:

a motor belt pulley and shaft sleeve dismounting device comprises a connecting sleeve, a jackscrew and a hydraulic cylinder, wherein the connecting sleeve is annular, one end of the connecting sleeve can be connected with a shaft sleeve of a motor belt pulley through a screw thread, and the other end of the connecting sleeve is connected with the hydraulic cylinder; the hydraulic cylinder comprises a main body part serving as a cylinder body and a piston positioned in the cylinder body, and the front end of the main body part is connected with the other end of the connecting sleeve; the tail end of the jackscrew is installed on the piston, and the front end of the jackscrew extends out of the main body part to extend into the cavity of the connecting sleeve and can be pressed against the shaft end of the motor shaft through adjustment.

The main body part is a hollow cylindrical structure, and the piston is axially arranged inside the main body part along the main body part.

The other end of the connecting sleeve is fixedly connected with the main body part in a position-adjustable mode.

The other end of the connecting sleeve is connected with the main body part through a screw thread.

The jackscrew is installed at the flexible end of piston, the hydraulic pump outside the hydraulic pump connector connecting device is passed through to the end of piston.

The rear end of the main body part is provided with a rear end face, and an outlet of the hydraulic pump connecting port is arranged in the rear end face.

The cylindrical hydraulic pump connector is provided with an external thread and further comprises a fastening nut, and the fastening nut is sleeved on the cylindrical external thread of the hydraulic pump connector and is attached to the outside of the rear end face.

Comprises an adjusting body which is positioned at the rear end of a main body part and is sleeved outside the main body part.

An adjusting handle is arranged on the adjusting body.

The front end of the jackscrew is conical.

The technical effects of the utility model:

the utility model discloses a motor pulley, axle sleeve dismounting device can effectively pull out motor pulley and axle sleeve fast. The design key points are as follows: the belt pulley and the shaft sleeve of the motor are driven to move through jackscrew transmission in an external force application mode. The jackscrew acts on the motor shaft forward (in the motor direction), because the position of the motor shaft is fixed and unchangeable and can not be pushed, the acting force is converted into the reacting force of the motor shaft to the jackscrew and the hydraulic cylinder (piston and main body part), under the limiting action of the connection of the connecting sleeve and the shaft sleeve of the motor belt pulley through the screw thread, the connecting sleeve fixed with the main body part bears the reacting force to drive the shaft sleeve of the motor belt pulley to move reversely along the motor direction, finally the motor belt pulley and the shaft sleeve are separated from the motor shaft together, and then the high-strength operating platform and the jack are selected to separate the belt pulley from the shaft sleeve, thus completing the disassembly. Therefore, the device can be used for disassembling the belt pulley and the shaft sleeve under any extreme condition, and solves the problem that the combined surface of the belt pulley and the shaft sleeve is adhered and can not be disassembled due to friction generated by relative displacement. For traditional rough and violent mode, this application need not to beat, heat or cutting, avoids the belt pulley damage that traditional mode caused, practices thrift equipment cost of maintenance, prolongs equipment life cycle, has improved work efficiency. The piston and the jackscrew are driven by external pressurization in a hydraulic pressurization mode, so that the disassembly is fast, and the labor intensity and the risk of personnel are reduced. Therefore, the device can greatly improve the working efficiency, reduce the maintenance cost of equipment, simultaneously improve the intrinsic safety of personnel and equipment, reduce the hidden danger and risk in operation, is simple to operate, can be used on power equipment, breaks through the limitation of the industry, and has wide popularization and application prospects.

Drawings

FIG. 1 is a schematic view of an installation structure of an electric motor used in an oil field;

fig. 2 is a schematic view of an embodiment of a device for detaching a motor pulley and a shaft sleeve according to the present invention.

Reference numerals: 1-connecting sleeve, 2-jackscrew, 3-regulating body, 4-main body part, 5-hydraulic pump connecting port, 6-fastening nut, 7-regulating handle, 8-piston, 9-motor, 10-motor shaft, 11-shaft sleeve, 12-belt pulley, 13-motor direction and 14-rear end face.

Detailed Description

In order to make the technical means and effects of the present invention easily understood, a motor pulley dismounting device of the present application will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, for the power equipment used in the oil field, a shaft sleeve 11 and a belt pulley 12 are firstly installed on a motor shaft 10 of a motor 9.

As shown in fig. 2, the motor pulley and bushing dismounting device of the embodiment includes a connecting sleeve 1, a jackscrew 2 and a hydraulic cylinder. The connecting sleeve 1 is annular, one end of the connecting sleeve 1 can be connected with a shaft sleeve 11 of a motor belt pulley 12 through a screw thread, and the other end of the connecting sleeve 1 is connected with the hydraulic cylinder; the hydraulic cylinder comprises a main body part 1 serving as a cylinder body and a piston 8 positioned in the cylinder body, and the front end of the main body part 4 is connected with the other end of the connecting sleeve 1; the tail end of the jackscrew 2 is arranged on the piston 8, and the front end of the jackscrew 2 extends out of the main body part 4 and extends into the cavity of the connecting sleeve 1 and can be pressed against the shaft end of a motor shaft 10 through adjustment.

The main body part 4 is a hollow cylindrical structure, and the piston 8 is arranged inside the main body part 4 along the axial direction of the main body part 4. Hydraulically driven, the piston 8 moves forward/right (motor direction 13), as does the jack screw 2.

The other end of the connecting sleeve 1 is fixedly connected with the main body part 4 in a position-adjustable mode. For example by a threaded connection. In this embodiment, the connection sleeve 1 is provided with an internal thread, one end of the connection sleeve 1 is sleeved on the external thread of the shaft sleeve 11 of the motor belt pulley 12 to form a threaded connection, and the other end of the connection sleeve 1 is sleeved on the external thread at the front end of the main body part 4 to form a threaded connection. The connecting sleeve 1 and the jackscrew 2 are adjusted through screw threads, so that the front end of the jackscrew 2 is propped against the central position of the motor shaft 10.

The jackscrew 2 is installed to the flexible end of piston 8, the hydraulic pump outside the hydraulic pump connector 5 connecting device is passed through to the end of piston 8. The rear end of the main body part 4 is provided with a rear end face 14, and the rear end face 14 is provided with an outlet of the hydraulic pump connecting port 5.

The hydraulic pump connecting port 5 is cylindrical and is provided with an external thread, the device further comprises a fastening nut 6, the fastening nut 6 is sleeved on the hydraulic pump connecting port 5 which is cylindrical and is attached to the outside of the rear end face 14, and tightness between the main body part 4 and the connecting sleeve 1 is improved. In particular, when the device is disassembled and the motor shaft 10 acts on the reaction force of the jackscrew 2 and the piston 8, the screw thread connection between the main body part 4 and the connecting sleeve 1 is prevented from loosening.

The device also comprises an adjusting body 3, wherein the adjusting body 3 is positioned at the rear end of the main body part 4 and sleeved outside the main body part 4, and when the screw thread between the connecting sleeve 1 and the main body part 4 is adjusted, the adjusting body 3 is screwed. For more convenient operation, the adjusting body 3 is provided with an adjusting handle 7.

The front end of the preferred terminal screw 2 is tapered. Because the shaft end/front section of the motor shaft 10 can form a concave small round pit when being processed, the pit is positioned in the center of the front end of the shaft, and the front end of the jackscrew 2 is set to be conical, so that the jackscrew 2 is jacked at the central concave position of the shaft end of the motor shaft 10.

When the device is used for disassembling the motor belt pulley and the shaft sleeve, the main operation mode is to connect one end of the connecting sleeve 1 with the shaft sleeve 11 of the motor belt pulley 12 through a screw thread, and the other end of the connecting sleeve 1 is connected with the device main body part 4 through a screw thread. The connecting sleeve 1 and the jackscrew 2 are adjusted through screw threads, so that the front end of the jackscrew 2 is propped against the central depression of the end part of the motor shaft 10. The hydraulic pump is connected through the hydraulic pump connecting port 5, the hydraulic pump is pressed, the piston 8 drives the jackscrew 2 to move towards the motor direction 13, namely, the front end of the jackscrew 2 continues to push the shaft end of the motor shaft 10 tightly towards the front of the jackscrew, but because the position of the motor shaft 10 is fixed and cannot be pushed, the jackscrew 2 cannot advance, the reaction force of the motor shaft 10 to the jackscrew 2 and the piston 8 is formed, the forward (motor direction 13) driving force of the hydraulic pressure to the piston 8 and the jackscrew 2 is converted into the reverse pulling force of the connecting sleeve 1 to the belt pulley 12 and the shaft sleeve 11, the shaft sleeve 11 of the motor is driven to move forwards (reverse direction of the motor direction 13) until being separated from the motor shaft 10, and the belt pulley 12 and the shaft sleeve 11 are integrally detached from the motor shaft 10.

After being detached from the motor shaft 10, the motor pulley 12 and the bushing 11 are integrally placed on an operating table capable of bearing a tensile force of 70 tons, and the pulley 12 is separated from the bushing 11 using a jack of 50 tons.

The device has the following advantages:

1. the belt pulley and the shaft sleeve under any extreme condition can be disassembled, and the problem that the joint surface of the belt pulley and the taper sleeve is adhered and can not be disassembled due to friction generated by relative displacement is solved.

2. The belt pulley damage caused by the traditional mode is avoided, the equipment maintenance cost is saved, and the equipment service cycle is prolonged.

3. Hydraulic pressure replaces manpower to impel the jackscrew, shortens the belt pulley and dismantles the activity duration, improves the work efficiency of dismantling belt pulley and axle sleeve, has reduced artificial intensity of labour simultaneously.

4. The operation safety is improved, and the safety risk in the multi-person cooperation operation in the traditional rough and brief operation is reduced.

5. The working efficiency of field power equipment adjustment, maintenance and maintenance is improved, and the production timeliness is improved.

6. The electric motor has no requirement on the working space, and can be operated at any place.

The representative embodiments and test examples of the present invention have been described in detail, but the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified in various ways, and the modifications and combinations obvious to those skilled in the art all belong to the protection scope of the present invention.

Claims

1. A motor belt pulley and shaft sleeve dismounting device is characterized by comprising a connecting sleeve, a jackscrew and a hydraulic cylinder, wherein the connecting sleeve is annular, one end of the connecting sleeve can be connected with a shaft sleeve of a motor belt pulley through a screw thread, and the other end of the connecting sleeve is connected with the hydraulic cylinder; the hydraulic cylinder comprises a main body part serving as a cylinder body and a piston positioned in the cylinder body, and the front end of the main body part is connected with the other end of the connecting sleeve; the tail end of the jackscrew is installed on the piston, and the front end of the jackscrew extends out of the main body part to extend into the cavity of the connecting sleeve and can be pressed against the shaft end of the motor shaft through adjustment.

2. The pulley and bushing remover as claimed in claim 1, wherein said main body is a hollow cylindrical structure, and said piston is disposed inside said main body along the axial direction of said main body.

3. The device as claimed in claim 2, wherein the other end of the connecting sleeve is fixedly connected to the main body in a position-adjustable manner.

4. The device as claimed in claim 3, wherein the other end of the connecting sleeve is screwed to the main body.

5. The motor pulley and bushing dismounting device of claim 4, wherein said jackscrew is mounted at the telescopic end of said piston, and the end of said piston is connected to the hydraulic pump outside the device through the hydraulic pump connection port.

6. The motor pulley and bushing dismounting device of claim 5, wherein said body portion has a rear end face at a rear end thereof, said rear end face having an outlet of said hydraulic pump connection port formed therein.

7. The motor pulley and shaft sleeve dismounting device as claimed in claim 6, wherein the cylindrical hydraulic pump connection port is provided with external threads, and further comprising a fastening nut, the fastening nut is sleeved on the external threads of the cylindrical hydraulic pump connection port and attached to the outside of the rear end face.

8. The device as claimed in claim 4, comprising an adjustment body disposed at the rear end of the main body and sleeved outside the main body.

9. The motor pulley and bushing extractor of claim 8, wherein said adjuster body is provided with an adjustment handle.

10. The motor pulley and bushing extractor of claim 1, wherein said jackscrew has a tapered front end.