Auxiliary device for controlling pulling of moment gyro shaft seat

Abstract

The utility model relates to an auxiliary device for controlling the pulling of a moment gyro shaft seat, which comprises a three-claw puller, a device body and an angular contact bearing, and the device body comprises a support ring, a column body and a boss; the column body is inserted into an inner hole of the mandrel, the angular contact bearing is subjected to downward thrust of the screw rod of the three-claw puller, and the bottom of the shaft seat is pulled upwards under upward counter-acting force of the drag hook. The tool is ingenious in design, simple in structure, low in cost, convenient and practical, capable of easily taking down the bearing seat, time-saving and labor-saving, capable of avoiding channel damage caused by dismounting the bearing seat, capable of avoiding potential safety hazards, capable of being replaced according to the inner diameter and the outer diameter of different angular contact bearings, wide in application range and high in practicability. The problems that in the disassembling process of an existing control moment gyro shaft seat, the control moment gyro shaft seat cannot be taken down only through manpower, time and labor are wasted in the disassembling process, a bearing is prone to being damaged, and the bearing is scrapped are solved, and compared with the prior art, the control moment gyro shaft seat has good market prospects and development space.

Description

Technical Field

[0001] The utility model relates to the technical field of control moment gyro disassembly tooling, in particular to an auxiliary device for pulling a control moment gyro shaft seat. Background Art

[0002] Under certain circumstances, a satellite needs to change its attitude in space to meet certain mission requirements. The control torque gyro generates a certain amount of angular momentum through a high-speed rotating flywheel. According to the command requirements, the direction of the angular momentum is changed to make the satellite change its attitude, thereby achieving attitude control.

[0003] During the development of the control moment gyro, it is necessary to disassemble and inspect the control moment gyro to determine the wear of the bearings, the contact state of the cage, the distribution of lubrication, etc., so as to determine the operation of the control moment gyro and ensure the life and accuracy of the control moment gyro. Since the bearings used in the control moment gyro rotate on the inner ring, in order to prevent the inner ring of the bearing and the mandrel from slipping and vibrating during operation, the inner ring of the bearing and the mandrel are matched with a small gap and need to be heated before assembly. Therefore, when disassembling, it cannot be removed by manpower alone. The disassembly process is time-consuming and labor-intensive, and it is easy to cause bearing damage, resulting in bearing scrapping and increasing the production cost of the enterprise.

[0004] How to design an auxiliary device for controlling the pulling of the torque gyro shaft seat that is cleverly designed, simple in structure, low in cost, convenient and practical, and can easily remove the bearing seat, save time and effort, avoid channel damage caused by disassembling the bearing seat, avoid safety hazards, and can be replaced according to the inner and outer diameters of different angular contact bearings and has a wide range of applications is a problem that needs to be solved at present. Utility Model Content

[0005] In order to solve the problems that the existing controlled torque gyro shaft seat cannot be removed by manpower alone during disassembly, the disassembly process is time-consuming and labor-intensive, and it is easy to cause bearing damage, resulting in bearing scrapping, etc., the utility model provides an auxiliary device for pulling the controlled torque gyro shaft seat, which has a clever design, a simple structure, low cost, convenience and practicality, and can easily remove the bearing seat, saving time and effort, avoiding damage to the channel due to disassembly of the bearing seat, avoiding safety hazards, and can be replaced according to the inner and outer diameters of different angular contact bearings, so as to achieve the purpose of a wide range of applications.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: an auxiliary device for controlling the pulling of the torque gyro shaft seat, comprising a three-claw puller, a device body and an angular contact bearing, the device body comprising a support ring, a column and a boss, the support ring and the column are an integrated structure up and down, the outer diameter of the column is smaller than the support ring, forming a T-shaped portion for being inserted into the inner hole of the core shaft, the interior of the support ring is vertically recessed downward to form a boss for accommodating the angular contact bearing; the column is inserted into the inner hole of the core shaft, the angular contact bearing is subjected to the downward thrust of the spiral rod of the three-claw puller, and the bottom of the shaft seat is subjected to the upward reaction force of the pull hook and is pulled upward.

[0007] As a further optimization scheme of the above-mentioned auxiliary device for controlling the pulling of the torque gyro shaft seat, the outer diameter of the angular contact bearing matches the inner diameter of the support ring.

[0008] As a further optimization solution of the above-mentioned auxiliary device for controlling the pulling of the torque gyro shaft seat, the inner and outer edges of the support ring are chamfered.

[0009] As a further optimization solution of the above-mentioned auxiliary device for controlling the pulling of the torque gyro shaft seat, the entire body of the device is made of high-strength stainless steel.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model includes a three-claw puller, a device body and an angular contact bearing. The device body includes a support ring, a column and a boss. The column is inserted into the inner hole of the core shaft. The angular contact bearing is pushed downward by the spiral rod of the three-claw puller, and the bottom of the shaft seat is pulled upward by the upward reaction force of the pull hook.

[0012] 2. The main innovation of the utility model is that the device body is designed into a suitable shape and placed in the hole of the control torque gyro core shaft to provide a stable and suitable support surface for the screw rod of the three-claw puller. The screw rod of the three-claw puller is placed on the angular contact bearing on the device. When the screw rod rotates, the rotation of the contact angular contact bearing can greatly save manpower and time, and will not cause damage to the appearance of parts. In addition, the device will not produce any excess during use, ensuring that the bearings used for the control torque gyro are not damaged during disassembly.

[0013] 3. By using this tool, it is completely possible to avoid the excess material caused by disassembling the bearing seat from entering the bearing groove used in the control moment gyro, causing groove damage.

[0014] 4. It can be replaced according to the inner and outer diameters of different angular contact bearings, and has a wider range of applications.

[0015] 5. Through this tooling and usage method, the bearing seat can be easily removed, saving time and effort, and the operation is simple and easy to learn, greatly reducing the learning cost.

[0016] 6. The whole device is simple to make, light in weight, low in cost and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the working process of the utility model;

[0020] Markings in the figure: 1. device body, 101. support ring, 102. cylinder, 103. boss, 2. angular contact bearing, 3. three-claw puller, 4. screw rod, 5. inner hole of core shaft, 6. shaft seat, 7. core shaft. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 and 2 As shown, Figure 1 It is a three-dimensional structural schematic diagram of the utility model; Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model; an auxiliary device for controlling the pulling of the torque gyro shaft seat, comprising a three-claw puller 3, a device body 1 and an angular contact bearing 2, the device body 1 comprising a support ring 101, a column 102 and a boss 103, the support ring 101 and the column 102 are an integrated structure up and down, the outer diameter of the column 102 is smaller than the support ring 101, forming a T-shaped portion for being inserted into the inner hole of the core shaft, the interior of the support ring 101 is vertically recessed downward to form a boss 103 for accommodating the angular contact bearing 2; the column 102 is inserted into the inner hole of the core shaft, the angular contact bearing 2 is subjected to the downward thrust of the spiral rod of the three-claw puller, and the bottom of the shaft seat is subjected to the upward reaction force of the pull hook and is pulled upward.

[0023] The outer diameter of the angular contact bearing 2 matches the inner diameter of the support ring 101 .

[0024] The inner and outer edges of the support ring 101 are chamfered.

[0025] The entire material of the device body 1 is made of high-strength stainless steel.

[0026] like Figure 3 As shown, Figure 3It is a schematic diagram of the working process of the utility model; the column 102 is placed into the inner hole of the core shaft, and the lower end of the outer edge of the support ring 101 rests on the upper end face of the core shaft 7; the spiral rod 4 of the three-claw puller 3 is pushed against the angular contact bearing 2, and the draw hook is hooked on the lower end face of the shaft seat 6; the spiral rod 4 is rotated downward, the angular contact bearing 2 is subjected to a downward thrust, and the bottom of the shaft seat 6 is pulled upward and removed by the upward reaction force of the draw hook.

[0027] In actual application, the utility model can be replaced according to the inner and outer diameters of different angular contact bearings, and has a wider application range. The overall material of the device body 1 is high-strength stainless steel, which is not easy to rust and easy to clean. The angular contact bearing is a universal part, cheap and easy to buy.

[0028] The utility model discloses the bearing seat is cleverly designed, simple in structure, low in cost, convenient and practical, and can easily remove the bearing seat, thus saving time and effort, avoiding damage to the channel caused by disassembling the bearing seat, and avoiding potential safety hazards. The bearing seat can be replaced according to the inner and outer diameters of different angular contact bearings, and has a wide range of applications. The utility model solves the problems existing in the existing control torque gyro shaft seat during the disassembly process, such as being unable to be removed by manpower alone, the disassembly process being time-consuming and labor-intensive, and being easy to cause bearing damage, leading to the scrapping of the bearing, and the like. Compared with the existing technology, the utility model has a good market prospect and development space.

[0029] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model.

Claims

1. An auxiliary device for controlling the pulling of a torque gyro shaft seat, comprising a three-claw puller (3), a device body (1) and an angular contact bearing (2), characterized in that: The device body (1) comprises a support ring (101), a column (102) and a boss (103); the support ring (101) and the column (102) are an upper and lower integrated structure; the outer diameter of the column (102) is smaller than that of the support ring (101), forming a T-shaped portion for being inserted into the inner hole of the core shaft; the interior of the support ring (101) is vertically recessed downward to form a boss (103) for accommodating the angular contact bearing (2); the column (102) is inserted into the inner hole of the core shaft, the angular contact bearing (2) is pushed downward by the spiral rod of the three-claw puller (3), and the bottom of the shaft seat is pulled upward by the upward reaction force of the pull hook.

2. An auxiliary device for pulling out a controlled moment gyro shaft seat as claimed in claim 1, characterized in that: The outer diameter of the angular contact bearing (2) matches the inner diameter of the support ring (101).

3. The auxiliary device for pulling out the shaft seat of a controlled moment gyro according to claim 1, characterized in that: The inner and outer edges of the support ring (101) are chamfered.

4. The auxiliary device for pulling out the shaft seat of a controlled moment gyro according to claim 1, characterized in that: The entire material of the device body (1) is high-strength stainless steel.

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