Torsion spring force applying device

Abstract

The utility model discloses a torsion spring force applying device which comprises a shell structure, a speed reducer is installed on the front side of the shell structure, the input end of the speed reducer is fixedly connected with a clamping head capable of being connected with an external driver, a gear transmission mechanism is arranged in the shell structure, one end of the gear transmission mechanism is fixedly connected with the speed reducer, and the other end of the gear transmission mechanism is fixedly connected with the clamping head. The other end is fixedly connected with a torsion spring fixing mechanism; through the arrangement of the speed reducer and the gear transmission mechanism, efficient transmission and conversion of power are achieved, so that the force applying process of the torsion spring is more labor-saving, the labor intensity of operators is greatly relieved, and the working efficiency is improved; the whole device adopts an integrated design, so that dangerous conditions such as slipping and throwing of the crowbar are avoided, and a safer working environment is provided for operators; through the arranged counter, the force applying condition of the torsion spring can be conveniently and accurately calculated, the problem of force applying circle number error caused by unreliable human memory is effectively avoided, and the force applying precision of the torsion spring is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of torsion spring technology, specifically a torsion spring force application device. Background Technology

[0002] In the field of mechanics, tightening torsion springs is a common and important task. Current methods often rely on manual operation using simple tools such as crowbars. However, this method has several drawbacks. First, tightening torsion springs is strenuous, requiring significant physical exertion from the operator, which can lead to fatigue and reduced work efficiency over time. Second, using crowbars poses a considerable safety hazard; the crowbar may slip and fly off during operation, potentially causing injury to the operator and damaging surrounding equipment and the environment.

[0003] Furthermore, in existing methods, the number of turns of the torsion spring is usually controlled by human memory. However, human memory is unreliable and prone to errors, which may result in insufficient or excessive tension of the torsion spring, thereby affecting the performance and stability of the torsion spring in subsequent use and failing to meet the requirements of some application scenarios with high torsion spring tensioning accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a torsion spring force application device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A torsion spring force application device includes a housing structure, a speed reducer is mounted on the front side of the housing structure, a chuck that can be connected to an external driver is fixedly connected to the input end of the speed reducer, and a gear transmission mechanism is provided inside the housing structure. One end of the gear transmission mechanism is fixedly connected to the speed reducer, and the other end is fixedly connected to a torsion spring fixing mechanism.

[0007] As a further embodiment of this utility model, it also includes a counter, which is fixedly connected to the front side of the housing structure and connected to the gear transmission mechanism.

[0008] As a further embodiment of this utility model: the shell structure includes side plates and limiting plates. There are two side plates arranged opposite each other. There are two limiting plates, which are connected to the two side edges between the two side plates by fasteners. The limiting plates and the side plates form a receiving cavity. A first through hole is opened on the side plate. A first notch is opened on one side of the side plate. The first notch communicates with the first through hole.

[0009] As a further embodiment of this utility model: a hand grip is fixedly connected to one side of the shell structure opposite to the first notch, and the hand grip is fixedly connected to the side plate by fasteners.

[0010] As a further improvement of this utility model: the reducer is a worm gear reducer, model VF49, and the input end of the reducer is fixedly connected to a chuck, which has a hexagonal shaft structure and can be connected to an external driver for power input. The output end of the reducer is fixedly connected to a gear transmission mechanism.

[0011] As a further embodiment of this utility model: the gear transmission mechanism includes a first gear, a second gear, a third gear, and a fourth gear. The output end of the reducer is fixedly connected to the first gear. The second gear and the third gear are meshed on both sides of the first gear. The second gear and the third gear are rotatably connected to the side plate via a rotating shaft. The other side of the second gear and the third gear are meshed with the fourth gear. The fourth gear is housed in a receiving cavity, which guides and limits the rotation of the fourth gear. A second through hole is provided inside the fourth gear, and a second notch is provided on one side of the fourth gear. The second notch communicates with the second through hole, and the distance between the second gear and the third gear is greater than the distance of the second notch.

[0012] As a further embodiment of this utility model: a torsion spring fixing mechanism is fixedly connected to the inner side of the fourth gear. The torsion spring fixing mechanism includes a flange fixing pin and a fixing pin. The flange fixing pin is fixedly connected to the inner side of the fourth gear by fasteners. The flange fixing pin is provided with three pin body, and a fixing pin is fixedly connected to each pin body.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: A torsion spring tensioning device achieves efficient power transmission and conversion by setting a reducer and gear transmission mechanism. The power of the external drive is reduced and increased in torque by the worm gear reducer, and then drives the torsion spring fixing mechanism to rotate through multi-stage gear transmission, making the torsion spring tensioning process more labor-saving, greatly reducing the labor intensity of operators and improving work efficiency. The entire device adopts an integrated design. The operator only needs to hold the lever, fix the device to the torsion spring, and start the external drive to complete the tensioning operation, avoiding dangerous situations such as the crowbar slipping and flying, and providing a safer working environment for the operator. With the equipped counter, the tensioning of the torsion spring can be calculated conveniently and accurately, effectively avoiding the error in the number of tensioning turns caused by unreliable human memory, which significantly improves the accuracy of torsion spring tensioning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a torsion spring force-bearing device.

[0015] Figure 2 This is a rear view of a torsion spring force device.

[0016] Figure 3 This is a left view of a torsion spring force device.

[0017] Figure 4 This is a diagram of the internal structure of a torsion spring force device.

[0018] In the diagram: 1. Shell structure; 11. Side plate; 111. First through hole; 112. First notch; 12. Limiting plate; 13. Receiving cavity; 2. Reducer; 3. Chuck; 4. Gear transmission mechanism; 41. First gear; 42. Second gear; 43. Third gear; 44. Fourth gear; 441. Second through hole; 442. Second notch; 5. Torsion spring fixing mechanism; 51. Flange fixing pin bracket; 511. Pin bracket body; 52. Fixing pin; 6. Counter; 7. Hand lever. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 In this embodiment of the utility model, a torsion spring force-applying device includes a housing structure 1, a reducer 2 is installed on the front side of the housing structure 1, a clamp 3 that can be connected to an external driver is fixedly connected to the input end of the reducer 2, a gear transmission mechanism 4 is provided inside the housing structure 1, one end of the gear transmission mechanism 4 is fixedly connected to the reducer 2, and the other end is fixedly connected to a torsion spring fixing mechanism 5.

[0021] A torsion spring force application device further includes a counter 6, which is fixedly connected to the front side of the housing structure 1 and connected to the gear transmission mechanism 4. The counter 6 allows for convenient and accurate calculation of the torsion spring force application.

[0022] The housing structure 1 includes two side plates 11 arranged opposite each other. Two limit plates 12 are also provided and connected to the two side edges between the two side plates 11 by fasteners. The limit plates 12 and the side plates 11 form a receiving cavity 13. A first through hole 111 is provided on one side of the side plate 11, and a first notch 112 is provided on one side of the side plate 11, communicating with the first through hole 111. A handle 7 is fixedly connected to the side of the housing structure 1 opposite to the first notch 112, and the handle 7 is fixedly connected to the side plate 11 by fasteners.

[0023] The reducer 2 used in this utility model is a worm gear reducer, model VF49. The input end of the reducer 2 is fixedly connected to a chuck 3, which is a hexagonal shaft structure and can be connected to an external driver for power input. The output end of the reducer 2 is fixedly connected to a gear transmission mechanism 4.

[0024] The gear transmission mechanism 4 includes a first gear 41, a second gear 42, a third gear 43, and a fourth gear 44. The output end of the reducer 2 is fixedly connected to the first gear 41. The second gear 42 and the third gear 43 are meshed on both sides of the first gear 41. The second gear 42 and the third gear 43 are rotatably connected to the side plate 11 via a rotating shaft. The other side of the second gear 42 and the third gear 43 are meshed with the fourth gear 44. The fourth gear 44 is housed in the receiving cavity 13. The receiving cavity 13 guides and limits the rotation of the fourth gear 44. The fourth gear 44 has a second through hole 441 inside and a second notch 442 on one side. The second notch 442 communicates with the second through hole 441. In order to ensure the rotation of the fourth gear 44, the distance between the second gear 42 and the third gear 43 is greater than the distance of the second notch 442.

[0025] The inner side of the fourth gear 44 is fixedly connected to a torsion spring fixing mechanism 5. The torsion spring fixing mechanism 5 includes a flange fixing pin 51 and a fixing pin 52. The flange fixing pin 51 is fixedly connected to the inner side of the fourth gear 44 by fasteners. The flange fixing pin 51 is provided with three pin frame bodies 511, and each pin frame body 511 is fixedly connected to a fixing pin 52.

[0026] The working principle of this utility model is as follows: The operator holds the handle 7 and moves the torsion spring force-applying device to the torsion spring to be force-applying. The torsion spring shaft is inserted into the second through hole 441 of the fourth gear 44 through the first notch 112 on the side plate 11 and the second notch 442 on the fourth gear 44. The fixing pin 52 in the torsion spring fixing mechanism 5 is inserted into the adjusting hole of the adjusting flange of the torsion spring to complete the fixing of the torsion spring on the device. Then, the external driver is connected to the chuck 3 at the input end of the reducer 2. The external driver is started, and the power is transmitted to the reducer 2 through the chuck 3. The power processed by the reducer 2 is transmitted from its output end to the first gear 41 of the gear transmission mechanism 4. The rotation of the first gear 41 drives the second gear 42 and the third gear 43 to rotate synchronously, which in turn drives the fourth gear 44 to rotate in the receiving cavity 13. The receiving cavity 13 guides and limits the rotation of the fourth gear 44 to ensure its stable rotation. As the fourth gear 44 rotates, the torsion spring fixing mechanism 5, which is fixedly connected to its inner side, rotates together. Since the torsion spring is fixed to the torsion spring fixing mechanism 5 by the fixing pin 52, the torsion spring rotates and deforms accordingly, thus realizing the force on the torsion spring. During the entire transmission process, the counter 6 connected to the gear transmission mechanism 4 starts to work. The counter 6 makes it convenient for the operator to calculate the force on the torsion spring, making the force operation more accurate.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A torsion spring force device comprising a housing structure (1), characterized in that, A speed reducer (2) is installed on the front side of the housing structure (1). The input end of the speed reducer (2) is fixedly connected to a chuck (3) that can be connected to an external driver. A gear transmission mechanism (4) is provided inside the housing structure (1). One end of the gear transmission mechanism (4) is fixedly connected to the speed reducer (2), and the other end is fixedly connected to a torsion spring fixing mechanism (5).

2. A torsion spring force device according to claim 1, wherein It also includes a counter (6), which is fixedly connected to the front side of the housing structure (1) and connected to the gear transmission mechanism (4).

3. A torsion spring force device according to claim 1, wherein The shell structure (1) includes a side plate (11) and a limiting plate (12). There are two side plates (11) arranged opposite each other. There are two limiting plates (12) connected to the two side edges between the two side plates (11) by fasteners. The limiting plate (12) and the side plate (11) form a receiving cavity (13). A first through hole (111) is opened on the side plate (11), and a first notch (112) is opened on one side of the side plate (11). The first notch (112) communicates with the first through hole (111).

4. A torsion spring force device according to claim 3, wherein A handle (7) is fixedly connected to one side of the shell structure (1) opposite to the first notch (112), and the handle (7) is fixedly connected to the side plate (11) by fasteners.

5. A torsion spring force device according to claim 4, wherein, The reducer (2) is a worm gear reducer, model VF49. The input end of the reducer (2) is fixedly connected to a chuck (3). The chuck (3) is a hexagonal shaft structure and can be connected to an external driver for power input. The output end of the reducer (2) is fixedly connected to a gear transmission mechanism (4).

6. A torsion spring force device according to claim 5, wherein, The gear transmission mechanism (4) includes a first gear (41), a second gear (42), a third gear (43), and a fourth gear (44). The output end of the reducer (2) is fixedly connected to the first gear (41). The second gear (42) and the third gear (43) are meshed on both sides of the first gear (41). The second gear (42) and the third gear (43) are rotatably connected to the side plate (11) through a rotating shaft. The other side of the second gear (42) and the third gear (43) are both connected to the fourth gear (44). The gears (44) are meshed and connected. The fourth gear (44) is housed in the receiving cavity (13). The receiving cavity (13) guides and limits the rotation of the fourth gear (44). The fourth gear (44) has a second through hole (441) inside and a second notch (442) on one side. The second notch (442) communicates with the second through hole (441). The distance between the second gear (42) and the third gear (43) is greater than the distance of the second notch (442).

7. A torsion spring force device according to claim 6, wherein The inner side of the fourth gear (44) is fixedly connected to a torsion spring fixing mechanism (5). The torsion spring fixing mechanism (5) includes a flange fixing pin bracket (51) and a fixing pin (52). The flange fixing pin bracket (51) is fixedly connected to the inner side of the fourth gear (44) by fasteners. The flange fixing pin bracket (51) is provided with three pin bracket bodies (511), and each pin bracket body (511) is fixedly connected to a fixing pin (52).

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