Nut dismounting device

Abstract

The utility model discloses a nut dismounting device, which belongs to the technical field of part processing and comprises a support component, a torque multiplier and a dismounting component. Wherein the supporting assembly is arranged on the main shaft; the torque multiplier is arranged on the supporting assembly and comprises a rotating body and a connecting arm, the connecting arm is arranged on the rotating body, and the rotating body can drive the connecting arm to rotate in the circumferential direction of the rotating body; the dismounting assembly comprises a connecting part and a dismounting part, the dismounting part can be connected with the to-be-dismounted nut, the connecting arm can be connected with the connecting part and drive the connecting part to rotate around the axis of the main shaft, and therefore the to-be-dismounted nut is dismounted. Due to the fact that the torque multiplier can amplify the torque, maintenance personnel can obtain large torque between the supporting assembly and the connecting arm only by using small torque, the nut to be disassembled can easily fall off from the main shaft, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing, in particular to a nut disassembly device. Background Art

[0002] In modern CNC machine tools, high-speed electric spindles are one of the key components, and their performance directly affects the machining accuracy and efficiency of the machine tools. The front bearing of the high-speed electric spindle is fixed to the rotor through a pre-tightening nut. The pre-tightening nut not only needs to use thread glue to prevent it from loosening during high-speed rotation, but also must apply sufficient torque to ensure its tightness to prevent displacement or vibration during machine operation.

[0003] There are many challenges when repairing high-speed electric spindles, especially when removing the front end bearing. First, the electric spindle must be fixed, and the unlocking torque applied is often very large. Traditional disassembly tools such as ordinary wrenches or torque wrenches often need to be supplemented with extended levers to increase the length of the force arm, thereby increasing the torque that can be applied. This method is not only inconvenient to operate, but also poses a safety hazard. During the operation, maintenance personnel may cause the tool to loosen or slip due to uneven force or deviation in the operating angle, thereby injuring the operator or causing damage to the electric spindle. In addition, the disassembly process using traditional tools is usually time-consuming and laborious, inefficient, and requires high physical strength from the operator, increasing maintenance costs and time costs. Utility Model Content

[0004] The utility model aims to provide a nut disassembling device to solve the technical problem of low efficiency in the nut disassembling process in the prior art.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] A nut removal device, comprising:

[0007] A support assembly, wherein the support assembly is arranged on the main shaft;

[0008] A torque multiplier is arranged on the support assembly, the torque multiplier comprises a rotating body and a connecting arm, the connecting arm is arranged on the rotating body, and the rotating body can drive the connecting arm to rotate along the circumferential direction of the rotating body;

[0009] A disassembly assembly comprises a connecting portion and a disassembly portion, wherein the disassembly portion can be connected to a nut to be disassembled, and the connecting arm can be connected to the connecting portion and drive the connecting portion to rotate around the axis of the main shaft, thereby disassembling the nut to be disassembled.

[0010] Preferably, the supporting assembly comprises a connecting sleeve and a rotor joint, a positioning groove is provided at the top of the connecting sleeve, the output end of the torque multiplier can be snapped into the positioning groove, a mounting groove is provided at the bottom of the connecting sleeve, one end of the rotor joint is snapped into the mounting groove, and the other end of the rotor joint is connected to the main shaft.

[0011] Preferably, a limit stopper is provided on the main shaft, and the limit stopper can abut against the rotor joint.

[0012] Preferably, the torque multiplier, the connecting sleeve and the main shaft are coaxially arranged.

[0013] Preferably, an articulated seat is provided on the rotating body, and the connecting arm is hinged to the articulated seat.

[0014] Preferably, the nut removal device also includes a fixing rod, a first connecting hole is opened on the connecting arm, a second connecting hole is opened on the connecting part, the first connecting hole and the second connecting hole are coaxially arranged, and the fixing rod can be passed through the first connecting hole and the second connecting hole, thereby connecting the connecting arm and the connecting part.

[0015] Preferably, a locking nut is provided on the fixing rod, the locking nut is threadedly connected to the fixing rod, and the locking nut can limit the movement of the fixing rod relative to the connecting arm and the connecting portion.

[0016] Preferably, the disassembly assembly includes a fixing pin, the disassembly portion is provided with a through hole, the through hole penetrates the disassembly portion along the thickness direction of the disassembly portion, and the fixing pin can be passed through the through hole and connected to the nut to be disassembled.

[0017] Preferably, the disassembly portion is provided with a slot, and the nut to be disassembled can be snapped into the slot.

[0018] Preferably, the torque multiplier comprises a speed regulating motor, the speed regulating motor is connected to the rotating body, the speed regulating motor can drive the rotating body to rotate along its own circumferential direction and can control the rotation speed of the rotating body.

[0019] Beneficial effects of the utility model:

[0020] The nut disassembly device proposed in the utility model, when in use, first connects the disassembly part to the nut to be disassembled, and then connects the connecting arm of the torque multiplier to the connecting part. After the connection is completed, the operator drives the input end to rotate, thereby driving the connecting arm to rotate along the circumference of the rotating body, driving the disassembly part and the nut to be disassembled connected thereto to also rotate, thereby realizing the disassembly process of the nut to be disassembled. Through the design of the support assembly and the torque multiplier, the device can be more stably fixed on the main shaft, reducing the risk of sliding or falling off during the disassembly process. Since the torque multiplier can amplify the torque, the maintenance personnel only need to use a small torque to obtain a large torque between the output end and the connecting arm, so that the nut to be disassembled can be easily fallen off from the main shaft, improving the operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a half-section view of a nut removal device provided in an embodiment of the utility model.

[0022] 100, spindle; 101, input end; 102, output end; 103, nut to be removed;

[0023] 10. Support assembly; 11. Connecting sleeve; 12. Rotor joint; 13. Limit stopper;

[0024] 20. Torque multiplier; 21. Rotating body; 22. Connecting arm;

[0025] 30. Disassembly assembly; 31. Connecting portion; 32. Disassembly portion; 33. Fixing pin;

[0026] 40. Fixed rod;

[0027] 50. Locking nut. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0032] See also Figure 1 The nut disassembly device provided by the embodiment of the utility model includes a support assembly 10, a torque multiplier 20 and a disassembly assembly 30. The support assembly 10 is arranged on the main shaft 100; the torque multiplier 20 is arranged on the support assembly 10, the torque multiplier 20 includes a rotating body 21 and a connecting arm 22, the connecting arm 22 is arranged on the rotating body 21, and the rotating body 21 can drive the connecting arm 22 to rotate along the circumferential direction of the rotating body 21; the disassembly assembly 30 includes a connecting portion 31 and a disassembly portion 32, the disassembly portion 32 can be connected to the nut 103 to be disassembled, the connecting arm 22 can be connected to the connecting portion 31, and drive the connecting portion 31 to rotate around the axis of the main shaft 100, so as to disassemble the nut 103 to be disassembled.

[0033] In this embodiment, the main shaft 100 extends in the vertical direction, and the nut 103 to be removed is installed on the top of the main shaft 100. For the convenience of description in conjunction with the drawings, the directions below are described in the directions shown in the drawings, but are not limited thereto.

[0034] When in use, first connect the disassembly part 32 to the nut 103 to be disassembled, and then connect the connecting arm 22 of the torque multiplier 20 to the connecting part 31. After the connection is completed, the operator drives the input end 101 to rotate, thereby driving the connecting arm 22 to rotate along the circumference of the rotating body 21, driving the disassembly part 32 and the nut 103 to be disassembled connected thereto to rotate, thereby realizing the disassembly process of the nut 103 to be disassembled. Through the design of the support assembly 10 and the torque multiplier 20, the device can be more stably fixed on the main shaft 100, reducing the risk of sliding or falling off during the disassembly process. Since the torque multiplier 20 can amplify the torque, the maintenance personnel only need to use a small torque to obtain a large torque between the output end 102 and the connecting arm 22, so that the nut 103 to be disassembled can be easily removed from the main shaft 100, thereby improving the operating efficiency.

[0035] Regarding the torque multiplier 20, the torque multiplier 20 can achieve the effect of amplifying the torque. The operator only needs to apply a small torque to the input end 101 of the torque multiplier 20. Through the transmission inside the rotating body 21, a large torque can be generated between the output end 102 of the torque multiplier 20 and the connecting arm 22, thereby achieving a labor-saving effect and improving the disassembly efficiency. In this embodiment, the torque amplification factor of the torque multiplier 20 is 1:13. In other embodiments, different amplification factors such as 1:15 or 1:20 can be adjusted according to needs, which is not limited here. It can be understood that the torque multiplier 20 uses existing mechanical equipment and is a commonly used facility for people in this field. Its working principle and specific structure will not be elaborated here.

[0036] Specifically, the torque multiplier 20 includes a speed regulating motor, which is connected to the rotating body 21. The speed regulating motor can drive the rotating body 21 to rotate along its own circumferential direction and can control the rotation speed of the rotating body 21. By controlling the speed of the rotating body 21 through the speed regulating motor, the torque applied to the nut 103 to be disassembled can be accurately adjusted, and it can adapt to nuts with different tightening degrees, and has high applicability. It is understandable that the speed regulating motor uses existing equipment in the field, and its working principle and specific structure are not described here. In this embodiment, it is also possible for the operator to manually screw the input end 101 of the torque multiplier 20 using a wrench, thereby driving the rotating body 21 to rotate, and the operator manually controls the input of the torque multiplier 20, which increases the flexibility of the operation process, so that the operator can adjust the applied force and speed according to the specific situation, adapt to different disassembly requirements and working environments, and has high adaptability. In addition, it can also save costs and improve space utilization.

[0037] Regarding the support assembly 10, the support assembly 10 includes a connecting sleeve 11 and a rotor joint 12. A positioning groove is provided at the top of the connecting sleeve 11, and the output end 102 of the torque multiplier 20 can be snapped into the positioning groove. A mounting groove is provided at the bottom of the connecting sleeve 11, and one end of the rotor joint 12 is snapped into the mounting groove, and the other end of the rotor joint 12 is connected to the main shaft 100. The precise docking and fixation between the torque multiplier 20 and the support assembly 10 are ensured by the snap-fit ​​structure of the positioning groove at the top of the connecting sleeve 11 and the output end 102 of the torque multiplier 20, thereby avoiding the displacement or misalignment of the device under high torque, thereby enhancing the stability of the overall structure and the reliability of operation. The design of the connecting sleeve 11 and the rotor joint 12 is not only conducive to the disassembly and assembly process of the nut removal device, but also provides a better mechanical joint effect and has higher stability.

[0038] Specifically, a limit stopper 13 is provided on the spindle 100, and the limit stopper 13 can abut against the rotor joint 12. The limit stopper 13 abuts against the rotor joint 12, thereby limiting the movement range of the rotor joint 12 on the spindle 100. By providing the limit stopper 13, it is ensured that the rotor joint 12 is kept in the correct position during operation, and it is prevented from being offset when torque is applied, so as to reduce the risk of erroneous operation or damage caused by position deviation.

[0039] More specifically, the torque multiplier 20, the connecting sleeve 11 and the main shaft 100 are coaxially arranged, ensuring that the torque multiplier 20, the connecting sleeve 11 and the main shaft 100 are aligned, reducing possible mechanical offsets during operation, reducing vibrations caused by component imbalance, and thus improving the stability and reliability of the overall equipment. In addition, the coaxial design can provide better power transmission efficiency and mechanical performance; at the same time, it is convenient for operators to disassemble and assemble, thereby improving operating efficiency.

[0040] In actual operation, under different working conditions, the installation positions of the torque multiplier 20, the disassembly assembly 30, and the main shaft 100 are not the same. In order to improve the flexibility of the nut disassembly device, a hinge seat is provided on the rotating body 21, and the connecting arm 22 is hinged to the hinge seat. Through the use of the hinge seat, the connecting arm 22 can be rotated along the hinge seat to adjust the angle of the connecting arm 22 to adapt to the disassembly assembly 30 in different installation positions, so that the torque multiplier 20 has a higher adaptability. In other embodiments, it can also be set as a telescopic connecting arm 22 or a sliding connecting arm 22 to adjust the position between the connecting arm 22 and the disassembly assembly 30, which is not limited here.

[0041] In order to facilitate the installation of the connecting arm 22 and the disassembly assembly 30, the nut disassembly device also includes a fixing rod 40. A first connecting hole is provided on the connecting arm 22, and a second connecting hole is provided on the connecting portion 31. The first connecting hole and the second connecting hole are coaxially arranged. The fixing rod 40 can be inserted into the first connecting hole and the second connecting hole, thereby connecting the connecting arm 22 and the connecting portion 31. By inserting the fixing rod 40 into the coaxially arranged first connecting hole and second connecting hole of the connecting arm 22 and the connecting portion 31, it can be ensured that the connecting arm 22 and the connecting portion 31 maintain precise alignment during operation, which is conducive to the transmission of high torque, reduces the mechanical play or offset during the rotation of the connecting arm 22, thereby improving the accuracy of the operation and the stability of the equipment. In other embodiments, the connecting arm 22 and the connecting portion 31 can be set to a snap connection or a bolt connection, which will not be repeated here.

[0042] In addition, a locking nut 50 is provided on the fixing rod 40, and the locking nut 50 is threadedly connected to the fixing rod 40, and the locking nut 50 can limit the movement of the fixing rod 40 relative to the connecting arm 22 and the connecting portion 31. The locking nut 50 is connected to the fixing rod 40 by a thread, and can lock the position of the fixing rod 40 between the connecting arm 22 and the connecting portion 31 to prevent movement due to vibration or torque during operation. In an environment of high torque or repeated operation, the fixing rod 40 may gradually loosen, and the use of the locking nut 50 can effectively prevent the fixing rod 40 from falling off. In addition, through the cooperation of the locking nut 50 and the fixing rod 40, the position of the fixing rod 40 between the first connecting hole and the second connecting hole can be adjusted to adapt to connecting arms 22 and disassembly components 30 of different models and different installation positions. The fixing rod 40 is adjusted by moving along the axial direction of the first connecting hole and the second connecting hole. After the fixing rod 40 moves to a suitable position, the fixing rod 40 is locked by the locking nut 50, thereby stably connecting the connecting arm 22 and the connecting portion 31.

[0043] In order to prevent the nut 103 to be removed from flying off due to the centrifugal force during or after the disassembly process, damaging the equipment and causing safety hazards. In this embodiment, the disassembly assembly 30 includes a fixing pin 33, and a through hole is provided on the disassembly portion 32, and the through hole penetrates the disassembly portion 32 along the thickness direction of the disassembly portion 32, and the fixing pin 33 can be penetrated through the through hole and connected to the nut 103 to be removed. The fixing pin 33 is penetrated in the through hole of the disassembly portion 32 and directly connected to the nut 103 to be removed, so as to form a stable mechanical locking method between the disassembly portion 32 and the nut 103 to be removed, ensuring the close connection between the disassembly portion 32 and the nut 103 to be removed, thereby reducing the risk of loosening or slipping of the nut 103 to be removed during the disassembly process, and improving the reliability and safety of the operation. In other embodiments, the disassembly portion 32 and the nut 103 to be removed can also be bolted or snap-fastened, which is not limited here.

[0044] Furthermore, in order to improve the fixing effect of the disassembly portion 32 on the nut 103 to be disassembled, a slot is provided on the disassembly portion 32, and the nut 103 to be disassembled can be snapped into the slot. The slot can limit the nut 103 to be disassembled, provide a firm and uniform gripping force, prevent the nut 103 to be disassembled from sliding or loosening during the disassembly process, reduce the risk of damage during operation, and ensure the integrity of the nut 103 to be disassembled and the smooth progress of the disassembly operation. It is understandable that, with respect to the shape of the slot, a slot matching the shape of the nut 103 to be disassembled can be adaptively set, and it is only necessary to ensure that the two can be snapped into each other, and no limitation is made here. In this embodiment, the disassembly component 30 uses an existing nut wrench, which is easy to obtain and has low cost.

[0045] When the nut removal device provided in this embodiment is used, first, the slot on the removal part 32 is engaged with the nut 103 to be removed, and the fixing pin 33 is inserted into the through hole of the removal part 32 and connected to the nut 103 to be removed; then the fixing rod 40 is inserted into the first connecting hole and the second connecting hole, and the fixing rod 40 is locked by the locking nut 50, so as to connect the connecting arm 22 and the connecting part 31; after the connection is completed, the operator uses a wrench to manually tighten the input end 101 of the torque multiplier 20, thereby driving the rotating body 21 to rotate along its own circumference, thereby driving the connecting arm 22 to rotate along the circumference of the rotating body 21, and driving the removal part 32 and the nut 103 to be removed connected thereto to rotate, thereby realizing the removal process of the nut 103 to be removed.

[0046] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nut removal device, It is characterized in that include: A support assembly (10), wherein the support assembly (10) is arranged on the main shaft (100); A torque multiplier (20) is arranged on the support assembly (10), the torque multiplier (20) comprises a rotating body (21) and a connecting arm (22), the connecting arm (22) is arranged on the rotating body (21), and the rotating body (21) can drive the connecting arm (22) to rotate along the circumferential direction of the rotating body (21); A disassembly assembly (30), the disassembly assembly (30) comprising a connecting portion (31) and a disassembly portion (32), the disassembly portion (32) being capable of connecting to a nut (103) to be disassembled, the connecting arm (22) being capable of connecting to the connecting portion (31) and driving the connecting portion (31) to rotate around the axis of the main shaft (100), thereby disassembling the nut (103) to be disassembled.

2. The nut removal device according to claim 1, It is characterized in that The support assembly (10) comprises a connecting sleeve (11) and a rotor joint (12); a positioning groove is provided at the top of the connecting sleeve (11), and the output end (102) of the torque multiplier (20) can be snap-fitted into the positioning groove; a mounting groove is provided at the bottom of the connecting sleeve (11), one end of the rotor joint (12) is snap-fitted into the mounting groove, and the other end of the rotor joint (12) is connected to the main shaft (100).

3. The nut removal device according to claim 2, It is characterized in that A limit stopper (13) is provided on the main shaft (100), and the limit stopper (13) can abut against the rotor joint (12).

4. The nut removal device according to claim 3, It is characterized in that The torque multiplier (20), the connecting sleeve (11) and the main shaft (100) are coaxially arranged.

5. The nut removing device according to claim 1, It is characterized in that The rotating body (21) is provided with an articulated seat, and the connecting arm (22) is articulated with the articulated seat.

6. The nut removing device according to claim 1, It is characterized in that The nut disassembly device also includes a fixing rod (40), a first connecting hole is formed on the connecting arm (22), a second connecting hole is formed on the connecting portion (31), the first connecting hole and the second connecting hole are coaxially arranged, and the fixing rod (40) can be inserted into the first connecting hole and the second connecting hole, thereby connecting the connecting arm (22) and the connecting portion (31).

7. The nut removing device according to claim 6, It is characterized in that The fixing rod (40) is provided with a locking nut (50), the locking nut (50) being threadedly connected to the fixing rod (40), and the locking nut (50) can limit the movement of the fixing rod (40) relative to the connecting arm (22) and the connecting portion (31).

8. The nut removing device according to any one of claims 1 to 7, It is characterized in that The disassembly assembly (30) comprises a fixing pin (33), the disassembly portion (32) is provided with a through hole, the through hole penetrates the disassembly portion (32) along the thickness direction of the disassembly portion (32), and the fixing pin (33) can be inserted into the through hole and connected to the nut (103) to be disassembled.

9. The nut removing device according to any one of claims 1 to 7, It is characterized in that The disassembly portion (32) is provided with a slot, and the nut (103) to be disassembled can be engaged in the slot.

10. The nut removing device according to any one of claims 1 to 7, It is characterized in that The torque multiplier (20) comprises a speed regulating motor, which is connected to the rotating body (21), and can drive the rotating body (21) to rotate along its own circumference and can control the rotation speed of the rotating body (21).

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