An optimized hydraulic torque wrench

Abstract

The utility model discloses a kind of optimized hydraulic torque wrench, it is related to torque wrench technical field, including wrench main part and sleeve, the inside of sleeve rotation is installed in wrench main body, the inside of sleeve is hexagonal, the recess is set in the multiple inner walls of sleeve, the inside rotation of recess is provided with rotating rod, the rod wall of rotating rod is fixedly sleeved with adjusting plate, the upper surface of wrench main body and located the rotation of sleeve directly above rotation ring is rotationally arranged, the inside of rotation ring is provided with transmission mechanism, and the upper surface of sleeve is provided with the limiting mechanism for limiting rotation ring rotation. The utility model can adjust the inside diameter of sleeve, conveniently screw different specifications of bolt, without additional installation of different sleeve.

Description

Technical Field

[0001] This utility model relates to the field of torque wrench technology, specifically to an optimized hydraulic torque wrench. Background Technology

[0002] Hydraulic torque wrenches are bolt removal and installation tools that rely on hydraulic power to output high torque. Their core actuating component is the socket, and the inner wall of the socket must match the shape of the bolt head to stably transmit torque. Existing hydraulic torque wrenches have a fixed inner diameter socket, and a single socket is only suitable for one type of bolt. When multiple bolt sizes need to be removed and installed, frequent disassembly of the old socket and installation of the new socket is necessary, which is cumbersome. Furthermore, carrying multiple sets of sockets of different sizes increases tool carrying costs and management difficulty. During socket replacement, improper operation can easily lead to increased clearance between the socket and the wrench's output shaft, causing "slippage." This not only affects the accuracy of torque transmission but may also cause bolt head wear, socket inner wall deformation, and shorten the tool's lifespan. Utility Model Content

[0003] In view of the problems existing in the above-mentioned optimized hydraulic torque wrenches, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide an optimized hydraulic torque wrench that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An optimized hydraulic torque wrench includes a wrench body and a sleeve. The sleeve is rotatably mounted inside the wrench body. The interior of the sleeve is hexagonal, and multiple inner walls of the sleeve have grooves. Rotating rods are rotatably mounted inside the grooves. An adjusting plate is fixedly sleeved on the rod wall. A rotating ring is rotatably mounted on the upper surface of the wrench body and directly above the sleeve. A transmission mechanism that drives the multiple rotating rods to rotate is provided inside the rotating ring. A limiting mechanism that restricts the rotation of the rotating ring is provided on the upper surface of the sleeve.

[0006] Preferably, the transmission mechanism includes an internal gear ring and gears, with multiple gears fixedly sleeved on the upper end of the corresponding rotating rod, the internal gear ring fixedly sleeved on the inner wall of the rotating ring, and multiple gears meshing with the internal gear ring.

[0007] Preferably, the limiting mechanism includes an external toothed ring and a locking plate. The external toothed ring is fixedly sleeved on the outer wall of the rotating ring. Two side plates are fixedly provided on the upper surface of the wrench body and on one side of the rotating ring. An installation rod is rotatably arranged between the two side plates. The locking plate is fixedly sleeved on the rod wall of the installation rod and engages with the teeth of the external toothed ring.

[0008] Preferably, a torsion spring is movably sleeved at one end of the mounting rod, and the two ends of the torsion spring are fixedly connected to the corresponding mounting rod and the side plate, respectively.

[0009] Preferably, the surfaces of the plurality of adjustment plates are coated with a wear-resistant coating.

[0010] Preferably, both sides of the card plate are provided with an anti-slip coating.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention overcomes the torsion spring force and rotates the clamping plate around the mounting rod as an axis, causing the clamping plate to separate from the tooth groove of the outer gear ring. This allows the rotating ring to rotate, which in turn drives the concentric inner gear ring to rotate. The inner gear ring drives multiple gears to rotate, and the gears drive the corresponding rotating rods to rotate, thereby synchronously driving multiple adjusting plates to rotate. This allows for the adjustment of the spacing between the multiple adjusting plates, enabling the tightening of hexagonal bolts of different specifications without the need to replace the sleeve, making it highly versatile. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the structure of an optimized hydraulic torque wrench proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the rear-view sectional structure; Figure 3 for Figure 1 A magnified schematic diagram of part A in the middle section.

[0014] Explanation of reference numerals in the attached figures: 1. Wrench body; 2. Socket; 3. Adjusting plate; 4. Rotating rod; 5. Rotating ring; 6. Internal gear ring; 7. Gear; 8. External gear ring; 9. Side plate; 10. Mounting rod; 11. Clamping plate; 12. Torsion spring; 13. Groove. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] This utility model discloses an optimized hydraulic torque wrench.

[0017] Reference Figure 1-3An optimized hydraulic torque wrench includes a wrench body 1 and a sleeve 2. The sleeve 2 is rotatably installed inside the wrench body 1. The interior of the sleeve 2 is hexagonal, and multiple inner walls of the sleeve 2 are provided with grooves 13. Rotating rods 4 are rotatably arranged inside the grooves 13. Adjusting plates 3 are fixedly sleeved on the rod walls of the rotating rods 4. The surfaces of multiple adjusting plates 3 are coated with a wear-resistant coating to improve the wear resistance of the adjusting plates 3. A rotating ring 5 is rotatably arranged on the upper surface of the wrench body 1 and directly above the sleeve 2. A transmission mechanism that drives multiple rotating rods 4 to rotate is arranged on the inner side of the rotating ring 5. A limiting mechanism that restricts the rotation of the rotating ring 5 is arranged on the upper surface of the sleeve 2.

[0018] Reference Figure 1-3 The transmission mechanism includes an internal gear ring 6 and gears 7. Multiple gears 7 are fixedly sleeved on the upper end of the corresponding rotating rod 4. The internal gear ring 6 is fixedly sleeved on the inner wall of the rotating ring 5. Multiple gears 7 are meshed with the internal gear ring 6.

[0019] Reference Figure 1-3 The limiting mechanism includes an external toothed ring 8 and a locking plate 11. The external toothed ring 8 is fixedly sleeved on the outer wall of the rotating ring 5. Two side plates 9 are fixedly installed on the upper surface of the wrench body 1 and on one side of the rotating ring 5. An installation rod 10 is rotatably installed between the two side plates 9. The locking plate 11 is fixedly sleeved on the rod wall of the installation rod 10 and engages with the teeth of the external toothed ring 8.

[0020] Reference Figure 1-3 One end of the mounting rod 10 is movably sleeved with a torsion spring 12. The two ends of the torsion spring 12 are fixedly connected to the corresponding mounting rod 10 and the side plate 9, respectively. In the natural state, the elastic force of the torsion spring 12 will cause the locking plate 11 to be locked into the tooth groove of the outer toothed ring 8. Both sides of the locking plate 11 are provided with anti-slip coating to increase the friction between the hand and the locking plate 11 and prevent slippage when pulling.

[0021] In this invention, firstly, according to the specifications of the bolt to be tightened, the two sides of the clamping plate 11 are pinched by hand to overcome the elastic force of the torsion spring 12, and the clamping plate 11 is rotated around the mounting rod 10 as the axis, so that the clamping plate 11 separates from the teeth of the external gear ring 8, releasing the limitation on the rotating ring 5; then the rotating ring 5 is rotated, and the rotating ring 5 drives the internal gear ring 6 fixed on the inner wall to rotate synchronously. The internal gear ring 6 meshes with multiple gears 7, driving the corresponding rotating rod 4 to rotate in the groove 13. The rotating rod 4 drives the adjusting plate 3 fixed on the rod wall to rotate synchronously. By adjusting the rotation direction and angle of the rotating ring 5, the distance between the multiple adjusting plates 3 is adapted to the bolt to be tightened. After adjusting the bolt specifications, loosen the clamping plate 11, reset the torsion spring 12, push the clamping plate 11 to rotate around the mounting rod 10 and re-clamp into the teeth of the external toothed ring 8, fix the position of the rotating ring 5, and prevent the rotating ring 5 from loosening during operation, which would cause changes in the spacing of the adjusting plate 3; finally, put the sleeve 2 on the head of the hexagonal bolt to be tightened, start the hydraulic drive mechanism of the wrench body 1, drive the sleeve 2 to rotate, and transmit torque through the contact between the adjusting plate 3 and the bolt head to complete the bolt tightening operation. When changing bolts of different specifications, repeat the above steps to adjust the spacing of the adjusting plate 3, without the need to install different sleeves.

[0022] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An optimized hydraulic torque wrench, comprising a wrench body (1) and a socket (2), characterized in that, The sleeve (2) is rotatably installed inside the wrench body (1). The inside of the sleeve (2) is hexagonal. Multiple inner walls of the sleeve (2) are provided with grooves (13). Rotating rods (4) are rotatably arranged inside the grooves (13). Adjusting plates (3) are fixedly sleeved on the rod walls of the rotating rods (4). A rotating ring (5) is rotatably arranged on the upper surface of the wrench body (1) and directly above the sleeve (2). A transmission mechanism that drives multiple rotating rods (4) to rotate is provided on the inner side of the rotating ring (5). A limiting mechanism that restricts the rotation of the rotating ring (5) is provided on the upper surface of the sleeve (2).

2. The optimized hydraulic torque wrench according to claim 1, characterized in that, The transmission mechanism includes an internal gear ring (6) and gears (7). Multiple gears (7) are fixedly sleeved on the upper end of the corresponding rotating rod (4). The internal gear ring (6) is fixedly sleeved on the inner wall of the rotating ring (5). Multiple gears (7) are meshed with the internal gear ring (6).

3. The optimized hydraulic torque wrench according to claim 1, characterized in that, The limiting mechanism includes an external toothed ring (8) and a locking plate (11). The external toothed ring (8) is fixedly sleeved on the outer wall of the rotating ring (5). Two side plates (9) are fixedly installed on the upper surface of the wrench body (1) and on one side of the rotating ring (5). An installation rod (10) is rotatably installed between the two side plates (9). The locking plate (11) is fixedly sleeved on the rod wall of the installation rod (10). The locking plate (11) engages with the teeth of the external toothed ring (8).

4. The optimized hydraulic torque wrench according to claim 3, characterized in that, One end of the mounting rod (10) is movably sleeved with a torsion spring (12), and the two ends of the torsion spring (12) are fixedly connected to the corresponding mounting rod (10) and the side plate (9) respectively.

5. The optimized hydraulic torque wrench according to claim 1, characterized in that, The surfaces of all of the aforementioned adjustment plates (3) are coated with a wear-resistant coating.

6. The optimized hydraulic torque wrench according to claim 3, characterized in that, Both sides of the card plate (11) are provided with anti-slip coating.

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