Simple torsional moment multiplier

Abstract

The utility model relates to the technical field of mechanical assembly, and discloses a simple torsional moment multiplier which comprises a torsional moment multiplier body, the torsional moment multiplier body is rotationally connected with an input shaft, the outer wall of the input shaft is fixedly connected with a main gear, and a plurality of pinions are rotationally installed in the torsional moment multiplier body; a gear ring is fixedly connected to the inner wall of the torsional moment multiplier body, an output block is installed on the outer wall of the bottom of the torsional moment multiplier body, a sleeve is arranged on one side of the output block, a limiting groove is formed in the inner wall of the output block, the output block is slidably connected with two trapezoidal clamping blocks, a butt joint groove is formed in the inner wall of the sleeve, and a clamping groove is formed in the inner wall of the sleeve. The whole replacement process does not need extra tools, the operation steps are simple and easy to understand, the sleeve replacement time is greatly shortened, the working efficiency is remarkably improved, the labor intensity is reduced, the structure is stable and reliable, and the risk that the sleeve falls off during working is effectively avoided.

Description

Technical Field

[0001] This application relates to the field of mechanical assembly technology, and in particular to a simple torque multiplier. Background Technology

[0002] In fields such as mechanical assembly and equipment maintenance, it is often necessary to apply large torques to bolts and nuts. Traditional wrenches are insufficient for high-intensity operations, hence the widespread use of torque multipliers. Most existing torque multipliers employ planetary gear transmission structures, amplifying torque through gear meshing, effectively improving work efficiency and playing a vital role in industries such as automotive manufacturing and aerospace. With the continuous development of industrial technology, higher demands are being placed on the performance, ease of operation, and structural stability of torque multipliers.

[0003] Regarding the aforementioned technologies, the inventors believe that in the use of existing torque multipliers, the sleeve is usually fastened with bolts or connected to the output block using a nested structure. Although the nested structure does not require tools, it often poses a safety hazard of the sleeve falling off when used laterally. On the other hand, fastening with bolts requires the use of additional tools to remove multiple bolts in order to replace the sleeve, which is cumbersome and time-consuming. Therefore, a simplified torque multiplier is proposed to solve the above problems.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned problems, this application provides a simple torque multiplier.

[0006] This application provides a simple torque multiplier using the following technical solution:

[0007] A simple torque multiplier includes a torque multiplier body. An input shaft is rotatably connected to the inner wall of the torque multiplier body, and a main gear is fixedly connected to the outer wall of the input shaft. Multiple small gears are rotatably installed inside the torque multiplier body. A gear ring is fixedly connected to the inner wall of the torque multiplier body, and the multiple small gears mesh with the gear ring and the main gear respectively. An output block is installed on the bottom outer wall of the torque multiplier body, and a sleeve is provided on one side of the output block. A limit groove is formed on the inner wall of the output block, and two trapezoidal locking blocks are slidably connected to the output block through the limit groove. A linkage locking assembly is provided on the outer wall of the output block. A docking groove is formed on the inner wall of the sleeve, and a locking groove is formed on the inner wall of the sleeve to fit the two trapezoidal locking blocks.

[0008] Preferably, the linkage latching assembly includes a support plate, which is fixedly connected to the inner wall of the output block. A movable sleeve is slidably connected to the outer wall of the support plate. A connecting rod is provided between the two trapezoidal latches and the movable sleeve, and the two ends of the two connecting rods are respectively hinged to the trapezoidal latches and the movable sleeve. A sliding groove is provided on the outer wall of the output block, and the movable sleeve slides through the sliding groove and is fixedly connected to a connecting frame.

[0009] Preferably, a long plate is slidably connected to the outer wall of the connecting frame, and two spring members are provided between the long plate and the connecting frame, with the two ends of the two spring members respectively fixedly connected to the connecting frame and the long plate.

[0010] Preferably, the outer wall of the output block is movably provided with a toothed sleeve, and the toothed sleeve meshes with the output block, and the outer wall of the toothed sleeve is fixedly connected with a counter-support foot.

[0011] Preferably, both trapezoidal blocks and the support plate are provided with spring element two, and the two ends of the spring element two are fixedly connected to the support plate and the trapezoidal blocks respectively.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. This device works by the operator pulling a long plate, which overcomes the elastic force of spring component one and separates from the fixing hole on the outer wall of the output block. This causes the connecting frame to move, and then, through a connecting rod, moves two trapezoidal blocks towards the center of the output block, separating the trapezoidal blocks from the sleeve slots. The sleeve is then quickly removed. During installation, the sleeve's mating groove is aligned with the output block and inserted. The long plate is then released, and spring component one releases its elastic potential energy, pushing the long plate back to its original position and aligning with the fixing hole, thus securing the connecting frame. Simultaneously, the trapezoidal blocks, under the action of spring component two, engage with the slots, completing the secure installation of the sleeve. The entire replacement process requires no additional tools, and the operation steps are simple and easy to understand. This significantly reduces sleeve replacement time, greatly improves work efficiency, reduces labor intensity, and ensures a stable and reliable structure, effectively preventing the risk of the sleeve falling during operation.

[0014] 2. This device features a toothed sleeve and a counter-support foot structure on the outer wall of the output block. During use, the counter-support foot can be pressed against a fixed object by sliding the toothed sleeve, providing a stable reaction force, effectively preventing device shaking, ensuring operational accuracy, and improving safety. Attached Figure Description

[0015] Figure 1 This is a cross-sectional plan view of the overall structure of the embodiment of the application;

[0016] Figure 2 This is a schematic diagram of the main gear structure in an embodiment of the application;

[0017] Figure 3 This is a three-dimensional structural diagram of an embodiment of the application;

[0018] Figure 4 This is a schematic diagram of the output block structure of an embodiment of the application;

[0019] Figure 5 This is a cross-sectional view of the output block structure of the embodiment of the application;

[0020] Figure 6 This is a schematic diagram of the toothed sleeve structure according to an embodiment of the application;

[0021] Figure 7 This is a schematic diagram of the sleeve structure in an embodiment of the application;

[0022] Explanation of reference numerals in the attached drawings: 1. Torque multiplier body; 2. Input shaft; 3. Main gear; 4. Pinion; 5. Output block; 6. Anti-support foot; 7. Gear ring; 8. Gear ring; 9. Sleeve; 10. Long plate; 11. Spring component one; 12. Connecting frame; 14. Slide groove; 15. Trapezoidal locking block; 16. Connecting rod; 17. Moving sleeve; 18. Spring component two; 19. Limiting groove; 20. Support plate; 21. Connecting groove; 22. Locking groove. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Figure 7 This application will be described in further detail.

[0024] A simple torque multiplier includes a torque multiplier body 1. An input shaft 2 is rotatably connected to the inner wall of the torque multiplier body 1. The input shaft 2 has a hexagonal hole at its top for easy connection to a power source. The internal space of the torque multiplier body 1 is used to install transmission components. Deep groove ball bearings (not shown in the diagram) are installed at both the top and bottom of the torque multiplier body 1. The input shaft 2 rotates flexibly through the top bearing. A rubber sealing ring (not shown in the diagram) is provided at the top opening of the torque multiplier body 1 to prevent dust... Foreign objects entering the interior affect the operation of the transmission components. A main gear 3 is fixedly connected to the outer wall of the input shaft 2, serving as the sun gear. Multiple pinions 4 are rotatably mounted inside the torque multiplier body 1, acting as planetary gears. The pinions 4 are mounted on a planetary carrier inside the torque multiplier body 1 via short shafts and tapered roller bearings, ensuring stable rotation of the pinions 4. A gear ring 8 is fixedly connected to the inner wall of the torque multiplier body 1, and the multiple pinions 4 mesh with the gear ring 8 and the main gear 3 respectively. The multiple pinions 4 rotate along the circle of the main gear 3. The gears are evenly distributed around the circumference and mesh simultaneously with the gear ring 8 and the main gear 3 to form a planetary gear transmission system. An output block 5 is installed on the bottom outer wall of the torque multiplier body 1. The top of the output block 5 is connected to the planetary carrier via a spline, transmitting the power generated by the revolution of the pinion 4 to the output block 5, thus amplifying the torque output. A sleeve 9 is provided on one side of the output block 5 for fitting bolts or nuts for operation. A limiting groove 19 is formed on the inner wall of the output block 5, extending radially along the output block 5. The output block 5 passes through the limiting groove 19. The sleeve 9 has two trapezoidal locking blocks 15 in sliding connection. The cross-section of each trapezoidal locking block 15 is trapezoidal, with its inclined surface facing the side of the sleeve 9. The outer wall of the output block 5 is provided with a linkage locking assembly to realize the synchronous movement of the two trapezoidal locking blocks 15. When installing the sleeve 9, the installed trapezoidal locking blocks 15 can be fixed. The inner wall of the sleeve 9 has a mating groove 21 and a slot 22 that matches the two trapezoidal locking blocks 15. The mating groove 21 matches the bottom shape of the output block 5, allowing the output block 5 to be inserted into the mating groove 21. The inner wall of the sleeve 9 also has a slot 22 that matches the two trapezoidal locking blocks 15. When the output block 5 is inserted into the mating groove 21, the trapezoidal locking blocks 15 can be locked into the slot 22, realizing the detachable connection between the sleeve 9 and the output block 5. This allows for quick replacement and installation of the sleeve 9, while preventing the sleeve 9 from falling off during operation and affecting normal operation.

[0025] The linkage latching assembly includes a support plate 20, which is fixedly connected to the inner wall of the output block 5. A movable sleeve 17 is slidably connected to the outer wall of the support plate 20, and the movable sleeve 17 can slide along the axial direction of the support plate 20. Two trapezoidal latching blocks 15 are respectively provided with connecting rods 16 between them and the movable sleeve 17, and the two ends of the two connecting rods 16 are respectively hinged to the trapezoidal latching blocks 15 and the movable sleeve 17. A sliding groove 14 is provided on the outer wall of the output block 5, and the movable sleeve 17 slides through the sliding groove 14 and is fixedly connected to a connecting frame 12. A fixing hole is provided on the outer wall of the output block 5. When the sleeve 9 needs to be installed, the operator pulls the long plate 10 to separate the long plate 10 from the fixing hole, thereby facilitating the axial movement of the movable sleeve 17 along the support plate 20. The movement facilitates the locking and fixing of the trapezoidal locking block 15 and the slot 22. After the sleeve 9 is installed, the connecting frame 12 moves to the original fixing hole position, thereby loosening the long plate 10 and locking it with the fixing hole, thus fixing the movable sleeve 17 and preventing the two trapezoidal locking blocks 15 from moving, improving the fixing and installation effect of the sleeve 9. At the same time, when it is necessary to disassemble the sleeve 9, the long plate 10 is separated from the fixing hole, and the connecting frame 12 is pulled upward, so that the connecting frame 12 drives the two trapezoidal locking blocks 15 to move towards each other through the connecting rods 16 on both sides of the movable sleeve 17, thereby separating the two trapezoidal locking blocks 15 from the slot 22 and completing the disassembly of the sleeve 9.

[0026] A long plate 10 is slidably connected to the outer wall of the connecting frame 12, and two spring members 11 are provided between the long plate 10 and the connecting frame 12. When the spring members 11 are in their natural state, a part of the trapezoidal block 15 extends out of the outer wall of the output block 5. The two ends of the two spring members 11 are fixedly connected to the connecting frame 12 and the long plate 10, respectively. Through the spring members 11, the long plate 10 is first pulled to separate it from the fixing hole, thereby applying a compressive force to the spring members 11, loosening the fixation of the connecting frame 12, and thus facilitating the movement of the movable sleeve 17. When the sleeve 9 is installed, the long plate 10 is aligned with the fixing hole. Through the release of the elastic potential energy of the spring members 11, the long plate 10 is driven to align and fix with the fixing hole, thus completing the fixation of the connecting frame 12 and preventing the movement of the two trapezoidal blocks 15.

[0027] A toothed sleeve 7 is movably provided on the outer wall of the output block 5, and the toothed sleeve 7 meshes with the output block 5. A counter-support foot 6 is fixedly connected to the outer wall of the toothed sleeve 7. The toothed sleeve 7 and the output block 5 are meshed by a spline, so that the toothed sleeve 7 can slide along the axial direction of the output block 5, but cannot rotate relative to it. The counter-support foot 6 is fixedly connected to the outer wall of the toothed sleeve 7. The free end of the counter-support foot 6 is used to abut against a fixed object to provide a reaction force and ensure the stable operation of the torque multiplier.

[0028] Both trapezoidal blocks 15 and the support plate 20 are provided with spring element 2 18, and the two ends of the spring element 2 18 are fixedly connected to the support plate 20 and the trapezoidal blocks 15 respectively. The spring element 2 18 is used to assist the resetting of the trapezoidal blocks 15 and ensure that the trapezoidal blocks 15 can be reliably locked into the slot 22.

[0029] The implementation principle of a simple torque multiplier according to an embodiment of this application is as follows: When it is necessary to use the torque multiplier to tighten or loosen bolts or nuts, the appropriate anchor drilling machine is inserted into the hexagonal hole interface at the top of the input shaft 2. The power source drives the input shaft 2 to start rotating. Since the input shaft 2 and the main gear 3 are fixedly connected by a flat key, the main gear 3 rotates synchronously. After the main gear 3 rotates, it meshes with three small gears 4 evenly distributed in its circumference, causing the small gears 4 to rotate around the axis of the tapered roller bearing mounted on their short shaft. At the same time, the gear ring 8 is fixed to the inner wall of the torque multiplier body 1. Under the constraint of the internal teeth of the gear ring 8, the small gears 4 revolve around the axis of the input shaft 2. The revolve motion of the small gears 4 is transmitted to the output block 5 through the planetary carrier, realizing the amplification of torque output. The output block 5 drives the sleeve 9 to rotate, thereby applying a larger torque to the bolts or nuts.

[0030] When the sleeve 9 needs to be replaced, the long plate 10 can be pulled first. The long plate 10 overcomes the elastic force of the spring element 11 and separates from the fixing hole on the outer wall of the output block 5. At this time, the spring element 11 is compressed. The long plate 10 drives the connecting frame 12 to move. The connecting frame 12 pulls the moving sleeve 17 along the axis of the support plate 20 through the sliding groove 14. The moving sleeve 17 drives the two trapezoidal blocks 15 to move towards the center of the output block 5 through the connecting rod 16, so that the trapezoidal blocks 15 retract into the output block 5 and align the docking groove 21 of the sleeve 9 with the bottom of the output block 5 for insertion. When the output block 5 is fully inserted into the docking groove 21, the connecting frame 12 returns to its original position, and the long plate 10 is released. The spring element 11 releases its elastic potential energy, pushes the long plate 10 to reset and dock with the fixing hole, and fixes the connecting frame 12. When the connecting frame 12 moves down, it pushes the trapezoidal blocks 15 to move outward, so that they are locked into the slot 22 on the inner wall of the sleeve 9, completing the firm connection between the sleeve 9 and the output block 5, ensuring that the sleeve 9 will not fall off during operation. When the sleeve 9 needs to be disassembled, the long plate 10 is pulled again to separate it from the fixing hole, compress the spring element 11, and release the fixation of the connecting frame 12. Pull the connecting frame 12 upwards, and the connecting frame 12 will drive the moving sleeve 17 to move upwards along the support plate 20. The moving sleeve 17 will pull the two trapezoidal locking blocks 15 towards the center of the output block 5 through the connecting rod 16, and disengage from the locking groove 22 on the inner wall of the sleeve 9. At this time, the sleeve 9 can be easily removed from the output block 5, making it convenient to replace sleeves 9 of different specifications.

Claims

1. A simple torsion moment multiplier comprising a torsion moment multiplier body (1), characterized in that: An input shaft (2) is rotatably connected to the inner wall of the torque multiplier body (1), and a main gear (3) is fixedly connected to the outer wall of the input shaft (2). Multiple small gears (4) are rotatably installed inside the torque multiplier body (1). A gear ring (8) is fixedly connected to the inner wall of the torque multiplier body (1), and the multiple small gears (4) mesh with the gear ring (8) and the main gear (3) respectively. A mounting is provided on the bottom outer wall of the torque multiplier body (1). There is an output block (5), and a sleeve (9) is provided on one side of the output block (5). A limiting groove (19) is provided on the inner wall of the output block (5), and two trapezoidal locking blocks (15) are slidably connected to the output block (5) through the limiting groove (19). A linkage locking assembly is provided on the inner wall of the output block (5). A docking groove (21) is provided on the inner wall of the sleeve (9), and a locking groove (22) that is adapted to the two trapezoidal locking blocks (15) is provided on the inner wall of the sleeve (9).

2. A simple torsion moment multiplier according to claim 1, characterized in that: The linkage snap-fit ​​assembly includes a support plate (20), which is fixedly connected to the inner wall of the output block (5). A movable sleeve (17) is slidably connected to the outer wall of the support plate (20). A connecting rod (16) is provided between the two trapezoidal snap-fit ​​blocks (15) and the movable sleeve (17), and the two ends of the two connecting rods (16) are respectively hinged to the trapezoidal snap-fit ​​blocks (15) and the movable sleeve (17). A sliding groove (14) is provided on the outer wall of the output block (5), and the movable sleeve (17) slides through the sliding groove (14) and is fixedly connected to a connecting frame (12).

3. A simple torsion moment multiplier according to claim 2, characterized in that: The outer wall of the connecting frame (12) is slidably connected to a long plate (10), and two spring members (11) are provided between the long plate (10) and the connecting frame (12). The two ends of the two spring members (11) are fixedly connected to the connecting frame (12) and the long plate (10) respectively.

4. A simple torsion moment multiplier as claimed in claim 1, wherein: The outer wall of the output block (5) is movably provided with a toothed sleeve (7), and the toothed sleeve (7) meshes with the output block (5). The outer wall of the toothed sleeve (7) is fixedly connected with a counter-support foot (6).

5. A simple torsion moment multiplier as claimed in claim 1, wherein: Both trapezoidal blocks (15) and the support plate (20) are provided with spring element two (18), and the two ends of the spring element two (18) are fixedly connected to the support plate (20) and the trapezoidal blocks (15) respectively.

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