Disassembling tool for support and clamping piece

Abstract

The utility model discloses a dismounting tool for a support and a clamping piece, which relates to the technical field of gearbox tools and comprises a positioning seat and a fastening structure used for fixing the support. The fixing sleeve is detachably connected to the positioning seat; the rotating shaft is rotationally connected to the fixing sleeve in an end-to-end manner; the movable sleeve is arranged on the rotating shaft in a sleeving mode through a threaded structure, the movable sleeve, the rotating shaft and the fixed sleeve are coaxially limited, and the movable sleeve is connected to the fixed sleeve in a lifting mode through the threaded structure; the pull part is fixedly connected to the movable sleeve and provided with a hook block, and the hook block abuts against the clamping piece end to end. The device is simple and convenient to operate, can be disassembled without damage, is low in labor intensity, and improves the maintenance efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission tooling, and particularly relates to a disassembly tool for a bracket and a clamping part. Background Art

[0002] A newly developed hybrid transmission assembly of the company adds an in-built motor on the basis of the MT (manual transmission assembly) structure. During the assembly process of the motor rotor bracket sub-assembly, due to part quality problems, assembly rework inevitably occurs. Problems may occur during the motor performance test of the resolver rotor and the collar on the motor rotor bracket sub-assembly, and it is necessary to remove them and replace them with new parts. Since the resolver rotor and the collar are connected to the rotor bracket by interference fit and the operating space is limited, they cannot be removed with ordinary tools. At the same time, due to the high design requirements of the rotor bracket sub-assembly, a dynamic balance test needs to be carried out on it before entering the test. Irregular disassembly may cause scratches and damage to the surfaces of the corresponding parts of the entire resolver rotor sub-assembly, affecting the use of the entire sub-assembly, which virtually increases the manufacturing cost. To solve the problem of replacing the entire component due to the quality problems of the resolver rotor and the collar parts, it is urgent to design a set of tooling that can remove the resolver rotor and the collar, and at the same time ensure that the remaining parts are not damaged when removing the parts with quality problems, so as to provide a strong guarantee for reducing the manufacturing cost. Summary of the Utility Model

[0003] Technical Problems to be Solved by the Utility Model

[0004] Aiming at the technical problem that the existing tooling cannot properly disassemble the interference-fitted resolver rotor and collar, the utility model provides a disassembly tool for a bracket and a clamping part, which is simple and convenient to operate, can be disassembled without damage, has low labor intensity, and improves the maintenance efficiency.

[0005] Technical Solution

[0006] To solve the above problems, the technical solution provided by the utility model is as follows:

[0007] A disassembly tool for a bracket and a clamping part includes a positioning seat, including a fastening structure for fixing the bracket; a fixing sleeve, detachably connected to the positioning seat; a rotating shaft, rotatably connected to the fixing sleeve end to end; a movable sleeve, sleeved on the rotating shaft through a threaded structure, the movable sleeve, the rotating shaft and the fixing sleeve are coaxially limited, and the movable sleeve is connected to the fixing sleeve through the threaded structure for lifting and lowering; a puller, fixedly connected to the movable sleeve and provided with a hook block, and the hook block abuts against the clamping part end to end.

[0008] The device hooks by flattening and hooking the end faces of the bracket and the clamping parts (resolver rotor and collar). The movable sleeve is sleeved on the rotating shaft through a threaded structure. The movable sleeve, the rotating shaft and the fixed sleeve are coaxially limited. The movable sleeve is connected to the fixed sleeve through the threaded structure for lifting and lowering. During the process of rotating the rotating shaft, the contact part between the fixed sleeve and the bracket is relatively stationary, effectively preventing the scratching damage of the contact part between the fixed sleeve and the rotor bracket due to the rotation of the rotating shaft during the disassembly process, which affects the dynamic balance quality requirements of the entire rotor bracket sub-assembly. During the rotation of the rotating shaft, the resolver rotor and the collar are subjected to the upward pulling force of the puller. When the upward pulling force is greater than the fitting and tightening force between the resolver rotor and the collar and the rotor bracket, the puller will slowly move the resolver rotor and the collar upward until after a certain stroke, the resolver rotor and the collar are completely separated from the cooperation with the rotor bracket, so as to achieve the purpose of removing the resolver rotor and the collar. Moreover, the rotating shaft is rotatably connected end-to-end to the fixed sleeve, and the hook block abuts against the clamping part end-to-end, so that the device can disassemble the clamping part axially, overcoming the problem that it is not easy to disassemble when blocked circumferentially.

[0009] Optionally, the fastening structure is a spline structure and a stepped structure.

[0010] Precise axial and radial positioning ensures that the movable sleeve, the rotating shaft and the fixed sleeve remain coaxially limited during operation. A firm connection prevents any unnecessary movement or vibration, especially when applying a pulling force to separate the clamping part. Through the torque transmission ability of the spline, the rotation of the rotating shaft can be more effectively controlled, and then the lifting and lowering of the movable sleeve can be controlled to achieve the purpose of precisely controlling the disassembly force.

[0011] Optionally, a circular groove or a circular hole coaxially matched with the rotating shaft is provided in the center of the positioning seat.

[0012] Coaxial alignment: The design of the circular groove or the circular hole ensures that the rotating shaft can be accurately installed on the center line, which helps to maintain the balance and symmetry of the entire device, especially in application scenarios where precise control of rotation and linear motion is required.

[0013] Facilitate assembly and disassembly: The design of the circular groove or the circular hole simplifies the installation and disassembly process of the rotating shaft, making the maintenance and overhaul of the entire device more convenient and fast.

[0014] Adaptability: By adjusting the size of the circular groove or the circular hole, rotating shafts with different diameters can be adapted, improving the versatility and flexibility of the device.

[0015] Optionally, the rotating shaft is provided with a rotating plane matched with a flat thrust ball bearing, and the other side of the flat thrust ball bearing abuts against the fixed sleeve.

[0016] Axial load support: Plane thrust ball bearings can withstand the axial force generated by the rotating shaft during rotation, prevent the rotating shaft from unnecessary displacement due to the axial force, and keep the position of the rotating shaft stable.

[0017] Reduce friction and wear: The rolling balls in the bearing can significantly reduce the direct contact between the rotating shaft and the fixed sleeve, reduce the friction coefficient, reduce wear, and extend the service life of the equipment.

[0018] Improved rotation accuracy: Through precise bearing matching, the rotation accuracy of the rotating shaft can be improved, ensuring that the movable sleeve is stable and shake-free during the lifting process, which is crucial for the disassembly process that requires fine control of force and position.

[0019] Enhanced device stability: The use of planar thrust ball bearings increases the stability of the entire device, and can maintain the normal rotation of the rotating shaft without deflection even when a large pulling force is applied.

[0020] Optionally, a circular groove for accommodating the planar thrust ball bearing is provided in the center of the fixing sleeve.

[0021] Bearing positioning: The circular groove provides a precise positioning area for the plane thrust ball bearing, ensuring that the bearing can work stably in the center position of the fixed sleeve without offset or misalignment.

[0022] Axial force absorption: Plane thrust ball bearings are mainly used to bear axial loads. The circular groove on the fixed sleeve ensures that the bearing can be fully embedded and withstand the axial force transmitted by the rotating shaft without causing deformation or damage to the fixed sleeve or the rotating shaft.

[0023] Rotational freedom: The inner wall of the circular groove fits tightly with the outer ring of the plane thrust ball bearing, but leaves enough clearance to allow the bearing to rotate while maintaining the axial positioning of the rotating axis.

[0024] Optionally, the movable sleeve is provided with an annular groove, and the Rama is engaged with the annular groove.

[0025] Positioning and fixing: The annular groove provides a stable connection point for the puller, ensuring the accurate position of the puller on the movable sleeve and preventing unnecessary deviation or rotation during operation.

[0026] Force transmission: When the rotating shaft rotates, the movable sleeve moves up and down through the threaded structure, and the annular groove ensures that this linear motion can be accurately transmitted to the puller, so that the puller can apply the required pulling force to the clamping part.

[0027] Safety and reliability: The snap-on mechanism ensures that the lever will not come off the sleeve when subjected to tension, which is particularly important for disassembly processes that require high-strength tension, avoiding operational failure or safety risks caused by component separation.

[0028] Easy to assemble and disassemble: The annular groove and snap - fit design simplify the assembly and disassembly process between the puller and the movable sleeve, making it more convenient for maintenance or component replacement.

[0029] Optionally, the puller fits onto the movable sleeve.

[0030] Direct transmission of force: Ensure that the puller can directly respond to the movement of the movable sleeve. When the movable sleeve rises and falls with the rotation of the rotating shaft, the puller moves accordingly, applying a continuous and uniform pulling force to the snap - fit part.

[0031] Operation consistency: The fitting design ensures that the relative position between the puller and the movable sleeve is consistent during each operation, improving the predictability and repeatability of the disassembly process.

[0032] Reduce energy loss: The tight fit reduces energy loss during movement, ensuring that the applied force can be effectively converted into the pulling force required to disassemble the snap - fit part.

[0033] Enhance the overall structural stability: The stable connection between the puller and the movable sleeve enhances the structural stability of the entire separation device, reducing vibration and noise during operation.

[0034] Optionally, an outer cover is provided outside the puller.

[0035] Safety protection: The outer cover can prevent operators from accidentally contacting the puller and other moving parts, reducing potential hazards during operation. It can also block external objects from entering the device interior, avoiding interference or damage to the internal mechanism.

[0036] Dust and water protection: In a harsh working environment, the outer cover can prevent impurities such as dust, moisture, and oil from entering the device interior, protecting the internal precision components and extending the service life of the equipment.

[0037] Beneficial effects

[0038] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0039] The technical solution provided by the present utility model is provided with a positioning seat: including a fastening structure for fixing the bracket to ensure the stability of the entire device during operation. A fixed sleeve: detachably connected to the positioning seat, used to support the rotating shaft, and keep the contact point with the bracket stationary during the disassembly process to avoid scratching damage caused by rotational movement. A rotating shaft: rotatably connected to the fixed sleeve at both ends, driving the lifting of the movable sleeve through rotation. A movable sleeve: with a threaded structure, can be lifted and lowered along the rotating shaft. The movable sleeve, the rotating shaft, and the fixed sleeve are coaxially limited to ensure the linear movement of the movable sleeve on the rotating shaft. A puller: fixed to the movable sleeve, provided with a hook block, which is designed to hook the clamping member (such as a resolver rotor and a ring sleeve), and generate an upward pulling force when the rotating shaft drives the movable sleeve to rise, so as to gradually separate the clamping member from the bracket. It can accurately control the force and direction during the disassembly process, reduce damage to precision components, and is especially suitable for situations where circumferential restrictions make direct disassembly difficult. At the same time, due to the stillness of the contact part between the fixed sleeve and the bracket, the dynamic balance quality of the rotor bracket is also ensured not to be affected by the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 FIG. is a schematic structural diagram of a disassembly tool for a bracket and a clamping member according to an embodiment of the present utility model;

[0041] 1. Positioning seat; 2. Fixed sleeve; 3. Flat thrust ball bearing; 4. Rotating shaft; 5. Movable sleeve; 6. Puller; 7. Outer cover; 8. Bracket; 9. Clamping member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the drawings and embodiments.

[0043] Embodiment

[0044] Combined with the attached Figure 1 drawings, a disassembly tool for a bracket and a clamping member includes a positioning seat 1, including a fastening structure for fixing the bracket 8; a fixed sleeve 2, detachably connected to the positioning seat 1; a rotating shaft 4, rotatably connected end-to-end to the fixed sleeve 2; a movable sleeve 5, sleeved on the rotating shaft 4 through a threaded structure, the movable sleeve 5, the rotating shaft 4, and the fixed sleeve 2 are coaxially limited, and the movable sleeve 5 is connected to the fixed sleeve 2 through the threaded structure for lifting and lowering; a puller 6, fixedly connected to the movable sleeve 5 and provided with a hook block, the hook block is in end-to-end abutment with the clamping member 9.

[0045] The positioning seat 1 is the positioning base of the device. The base is fixed on a workbench by bolts, and then the workpiece resolver rotor bracket 8 sub-assembly is placed thereon. The fastening structure is a spline structure and a step structure, and through the spline fit of the base positioning seat 1, the workpiece is stably fixed on the disassembly tool.

[0046] The rotating shaft 4 is provided with a rotating plane (the surface mating with the tight ring) for mating with the thrust ball bearing 3 in the plane. The other side of the thrust ball bearing 3 in the plane abuts against the fixed sleeve 2. Then, the loose ring of the thrust ball bearing 3 in the plane (mating with the fixed sleeve 2) is fitted onto the fixed sleeve 2, and then the assembled unit is positioned through the inner hole of the fixed sleeve 2 and the positioning seat 1. A circular groove for accommodating the thrust ball bearing 3 in the plane is provided in the center of the fixed sleeve 2, and the bottom surface of the circular groove abuts against the loose ring.

[0047] Press-fit the tight ring of the thrust ball bearing 3 in the plane and the rotating shaft 4 in place, and then fit them together onto the fixed sleeve 2. A circular groove or circular hole coaxially mating with the rotating shaft 4 is provided in the center of the positioning seat 1, and the rotating shaft 4 is guided and positioned with the inner hole (the circular hole) of the fixed sleeve 2. Screw the movable sleeve 5 onto the rotating shaft 4 from the upper end through thread engagement, adjust the screwing depth, and then manually fit the hook blocks of the two half pieces of the puller 6 onto the lower end surfaces of the resolver rotor and the ring sleeve. The movable sleeve 5 is provided with an annular groove, and the puller 6 is engaged with the annular groove, and the other end is snapped into the annular groove of the movable sleeve 5. Then, put on the outer cover 7 from the upper end to wrap the outer circle of the puller 6 and make its upper end small inner hole fit in place with the movable sleeve 5.

[0048] A transverse hole for rotation is provided at the top of the rotating shaft 4. A φ9 round bar is sleeved into the transverse hole of the rotating shaft 4, and then the rotating shaft 4 is rotated clockwise. The tight ring on the thrust ball bearing 3 in the plane rotates smoothly through the sphere. Since the positioning seat 1, the workpiece, and the assembled unit of the fixed sleeve 2 are fixed and immovable, when the round bar drives the rotating shaft 4 to rotate, the movable sleeve 5 slowly rises upward through the transmission of the thread thrust. At the same time, the rise of the movable sleeve 5 drives the rise of the puller 6. Since the resolver rotor and the ring sleeve are hooked by the end surface of the puller 6, as the round bar rotates deeper, the resolver rotor and the ring sleeve are slowly pulled out upward. In the design of the fixed sleeve 2 and the rotating shaft 4 of this structure, an innovative design is carried out. During the disassembly process of the rotor bracket 8 sub-assembly, other components are not damaged so as not to affect the dynamic balance quality requirements of the entire rotor bracket 8 sub-assembly. To solve the problem of scratching and damage to the end surface of the workpiece body rotor bracket 8 by the rotating body rotating shaft 4 during rotation, a thrust ball bearing 3 in the plane is added in the middle to decompose the fixed sleeve 2 and the rotating shaft 4 into two single parts, effectively solving the problem of scratching the workpiece surface due to rotation. At the same time, considering the integrated design of the rotating shaft 4, two functional options are designed at the upper end. One is that it can be manually operated for disassembly with a round bar through a φ9 round hole; the other is that the head is designed as a hexagonal head, and a corresponding transition sleeve can be used to disassemble it with an air gun or an electric gun, so that the structure of this device is compact, the manufacturing process is simple, and the operation is light and convenient.

[0049] Working principle:

[0050] During operation, first fix the positioning seat 1 of the disassembly tool on the workbench, then install the sub-assembly of the workpiece rotor bracket 8 onto the positioning seat 1, and cooperate with the workpiece through the spline of the base positioning seat 1; position the loose ring of the flat thrust ball bearing 3 and the combined body of the fixed sleeve 2 through the inner hole of the fixed sleeve 2 in cooperation with the positioning seat 1; and install the combined part of the tight ring of the flat thrust ball bearing 3 and the rotating shaft 4 onto the inner hole of the fixed sleeve 2 for guiding and positioning. Screw the movable sleeve 5 onto the rotating shaft 4 from the upper end through thread cooperation, adjust the screwing depth, then manually install the hook blocks of the two half-pieces of the puller 6 onto the lower end faces of the resolver rotor and the collar, and the other end is caught in the groove of the movable sleeve 5. Then, put the outer cover 7 on from the upper end, wrap the outer circle of the puller 6 and make its upper inner hole cooperate with the movable sleeve 5 in place. Insert a φ9 round bar into the hole of the rotating shaft 4, and then rotate the rotating shaft 4 clockwise. The tight ring on the flat thrust ball bearing 3 rotates smoothly through the ball, and the movable sleeve 5 slowly rises upward through the transmission of the thread thrust. At the same time, the rise of the movable sleeve 5 drives the rise of the puller 6. Since the resolver rotor and the collar are hooked by the end face of the puller 6, as the round bar rotates deeper, the resolver rotor and the collar are slowly pulled out upward, completing the entire disassembly process of the resolver rotor and the collar from the sub-assembly of the rotor bracket 8.

[0051] The above has schematically described the present invention and its implementation manners. This description is not restrictive, and only one of the implementation manners of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A disassembly tool for a bracket and a clamping part, characterized in that: include A positioning seat, including a fastening structure for fixing the bracket; A fixing sleeve, detachably connected to the positioning seat; A rotating shaft, rotatably connected to the fixed sleeve end to end; A movable sleeve is sleeved on the rotating shaft through a threaded structure, the movable sleeve, the rotating shaft and the fixed sleeve are coaxially limited, and the movable sleeve is lifted and connected to the fixed sleeve through the threaded structure; The Rama is fixedly connected to the movable sleeve and is provided with a hook block, and the hook block is in end-to-end contact with the clamping member.

2. A disassembly tool for a bracket and a clamping member according to claim 1, characterized in that: The fastening structure is a spline structure and a step structure.

3. A disassembly tool for a bracket and a clamping member according to claim 1, characterized in that: A circular groove or a circular hole coaxially matched with the rotating shaft is provided in the center of the positioning seat.

4. A disassembly tool for a bracket and a clamping member according to claim 1, characterized in that: The rotating shaft is provided with a rotating plane matched with the planar thrust ball bearing, and the other surface of the planar thrust ball bearing abuts against the fixing sleeve.

5. A disassembly tool for a bracket and a clamping member according to claim 4, characterized in that: A circular groove for accommodating the planar thrust ball bearing is provided in the center of the fixing sleeve.

6. A disassembly tool for a bracket and a clamping member according to claim 1, characterized in that: The movable sleeve is provided with an annular groove, and the Rama is engaged with the annular groove.

7. A disassembly tool for a bracket and a clamping member according to claim 6, characterized in that: The Rama is fitted to the movable sleeve.

8. A disassembly tool for a bracket and a clamping member according to any one of claims 1 to 7, characterized in that: The Rama is provided with an outer cover.

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