Anti-loosening fastening structure for internal parts of speed reducer

Abstract

The utility model relates to the technical field of speed reducers, and discloses an anti-loosening fastening structure for internal parts of a speed reducer, which comprises a shell, a first shaft body is rotatably connected in the shell, a first-stage reduction gear is fixedly connected on the outer wall of the first shaft body, a sleeve shell is fixedly connected on the outer wall of the shell, a frame is fixedly connected in the sleeve shell, and a second-stage reduction gear is fixedly connected on the outer wall of the frame. A rotating column is rotationally connected into the frame, a sleeve support is in threaded connection with the outer wall of the rotating column, a rotating rod is rotationally connected with the outer wall of the sleeve support, and an attaching block is rotationally connected with the outer wall of the rotating rod. According to the utility model, the rotating column is rotated by the cross screwdriver and is in threaded connection with the sleeve bracket to drive the bracket to move, so that the rotating rod rotates to push the attaching block to move outwards and fix the inner support of the connecting lantern ring, the sliding plate is driven to move in the frame when the attaching block moves, the frame is fixed layer by layer, and the position of the shaft body is limited by virtue of threaded connection and self-locking characteristics; and parts are prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a fastening structure for preventing loosening of internal components of a speed reducer. Background Technology

[0002] In the fields of industrial production and mechanical transmission, with the diversification and increasing complexity of equipment, the requirements for precise control and adaptability of power transmission are becoming increasingly stringent. Many devices need to adjust the output of high-speed power sources such as motors to meet the specific speed and torque requirements of different working scenarios.

[0003] During the operation of a speed reducer, due to high-speed rotation, frequent starts and stops, and complex stress conditions, the loosening of components has always been a critical technical challenge that urgently needs to be addressed. Early speed reducer designs often focused on transmission efficiency and torque output, resulting in relatively simple measures for tightening and preventing loosening of components. However, with the increasing demands for equipment stability and reliability in industrial production, traditional tightening methods such as ordinary nut and bolt connections are prone to loosening under long-term vibration and impact. This not only leads to a decrease in transmission accuracy and affects the normal operation of the equipment but may also cause serious safety accidents. Therefore, a secure tightening structure to prevent loosening of internal components in speed reducers has been proposed.

[0004] However, traditional fastening structures use bolts for fixing, but during use, the vibration generated during rotation can cause the bolts to loosen, resulting in loose parts. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an anti-loosening fastening structure for internal components of the speed reducer, which aims to solve the problem of bolts loosening and components becoming loose due to vibrations generated during rotation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The internal anti-loosening fastening structure of the speed reducer includes a housing. A shaft is rotatably connected inside the housing. A primary reduction gear is fixedly connected to the outer wall of the shaft. A sleeve is fixedly connected to the outer wall of the housing. A frame is fixedly connected inside the sleeve. A rotating column is rotatably connected inside the frame. A sleeve bracket is threadedly connected to the outer wall of the rotating column. A rotating rod is rotatably connected to the outer wall of the sleeve bracket. A fitting block is rotatably connected to the outer wall of the rotating rod. A sliding plate is fixedly connected to the outer wall of the fitting block. The outer wall of the sliding plate is slidably connected to the outer wall of the frame. A connecting collar is fitted to the outer wall of the fitting block. An input component is provided inside the housing for driving the speed reducer.

[0008] Preferably, the input component includes an input shaft, the outer wall of which is rotatably connected to the inside of the housing, and an input gear is fixedly connected to the outer wall of the housing, the tooth tip of which is meshed with the tooth tip of a first-stage reduction gear.

[0009] Preferably, the outer wall of the connecting collar is rotatably connected to the inner wall of the shaft.

[0010] Preferably, the outer wall of the sleeve is fixedly connected to the outer wall of the outer shell.

[0011] Preferably, the teeth of the first-stage reduction gear are meshed with a second-stage reduction gear, and an output shaft is fixedly connected to the inner wall of the second-stage reduction gear.

[0012] Preferably, the outer wall of the output shaft is rotatably connected to the inner wall of the housing.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a screwdriver is used to rotate the rotating column, which is threadedly connected to the sleeve bracket, thereby driving the bracket to move. This causes the rotating rod to rotate and push the bonding block to move outward, thus fixing the connecting collar internally. When the bonding block moves, it drives the sliding plate to move inside the frame. The frame is fixed layer by layer, and finally the bonding block is fixed. By means of threaded connection and self-locking characteristics, the position of the shaft is restricted, preventing parts from loosening.

[0015] 2. In this utility model, the drive source drives the input shaft to rotate, the input shaft drives the input gear to rotate, which in turn drives the first-stage reduction gear to rotate, and then drives the second-stage reduction gear to rotate, ultimately causing the output shaft to rotate and transmitting force to other components. The output speed is reduced, the wear of connected equipment components is reduced during operation, and the service life of the equipment is extended. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the anti-loosening fastening structure for the internal components of the speed reducer proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the shaft of the anti-loosening fastening structure for the internal components of the speed reducer proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the output shaft of the anti-loosening fastening structure for internal components of the speed reducer proposed in this utility model;

[0019] Figure 4 for Figure 3 Enlarged diagram of point A.

[0020] Legend:

[0021] 1. Outer shell; 2. Shaft 1; 3. First-stage reduction gear; 4. Sleeve; 5. Frame; 6. Rotating column; 7. Sleeve support; 8. Rotating rod; 9. Fitting block; 10. Sliding plate; 11. Input shaft; 12. Input gear; 13. Output shaft; 14. Second-stage reduction gear; 15. Connecting collar. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a speed reducer internal component anti-loosening fastening structure, including a housing 1, a shaft 2 rotatably connected inside the housing 1, a first-stage reduction gear 3 fixedly connected to the outer wall of the shaft 2, a sleeve 4 fixedly connected to the outer wall of the housing 1, a frame 5 fixedly connected inside the sleeve 4, a rotating column 6 rotatably connected inside the frame 5, a sleeve bracket 7 threadedly connected to the outer wall of the rotating column 6, a rotating rod 8 rotatably connected to the outer wall of the sleeve bracket 7, a fitting block 9 rotatably connected to the outer wall of the rotating rod 8, a sliding plate 10 fixedly connected to the outer wall of the fitting block 9, the outer wall of the sliding plate 10 slidably connected to the outer wall of the frame 5, and a connecting collar 15 fitted to the outer wall of the fitting block 9. An input component is provided inside the housing 1 for driving the speed reducer.

[0024] Specifically, a screwdriver is used to rotate the rotating column 6, which is connected to the sleeve support 7 by a thread. The rotation of the rotating column 6 will cause the sleeve support 7 to move. During the movement of the sleeve support 7, it will drive the rotating rod 8 connected to it to rotate. The rotation of the rotating rod 8 will generate an outward thrust, pushing the bonding block 9 to move outward, thereby enabling the bonding block 9 to achieve an internal support and fixation effect on the connecting collar 15. When the bonding block 9 moves outward, it will drive the sliding plate 10 to move synchronously inside the frame 5. Since the frame 5 is fixed by the sleeve 4, and the sleeve 4 is firmly fixed by the outer shell 1, this ensures that the bonding block 9 can be stably fixed in a fixed position after movement. Through the threaded connection between the sleeve support 7 and the rotating column 6, and the fixed state of the frame 5, the connecting collar 15 can be accurately fixed in a specific position, achieving an effective limiting function. The self-locking characteristic of the threaded connection can prevent the parts from loosening due to vibration or other factors.

[0025] Reference Figure 1 , Figure 2 and Figure 3 The input assembly includes an input shaft 11, the outer wall of which is rotatably connected to the inside of a housing 1. An input gear 12 is fixedly connected to the outer wall of the housing 1, and the teeth of the input gear 12 mesh with the teeth of a first-stage reduction gear 3. The outer wall of a connecting collar 15 is rotatably connected to the inner wall of a shaft body 2. The outer wall of a sleeve 4 is fixedly connected to the outer wall of the housing 1. The teeth of the first-stage reduction gear 3 mesh with a second-stage reduction gear 14, and the inner wall of the second-stage reduction gear 14 is fixedly connected to an output shaft 13. The outer wall of the output shaft 13 is rotatably connected to the inner wall of the housing 1.

[0026] Specifically, when the drive source is started, the power it generates drives the input shaft 11 to rotate. The rotation of the input shaft 11 then drives the input gear 12, which in turn drives the first-stage reduction gear 3 to rotate. Through the meshing transmission relationship between the first-stage reduction gear 3 and the second-stage reduction gear 14, the second-stage reduction gear 14 also rotates, ultimately causing the output shaft 13 to rotate. The output shaft 13 transmits the obtained power to other related components. Due to the two-stage reduction action of the first-stage reduction gear 3 and the second-stage reduction gear 14, the speed of the output shaft 13 is effectively reduced. Due to the reduction in relative motion speed, the heat generated by friction is reduced, and the impact force between components is also reduced accordingly. This significantly slows down the wear rate of these equipment components, greatly improving the service life and stability of the equipment.

[0027] Working principle: When this structure is needed, first, insert shaft 2 and output shaft 13 into the housing 1. Then, use a Torx screwdriver to rotate the rotating column 6. Since the rotating column 6 is threadedly connected to the sleeve support 7, it drives the sleeve support 7 to move. When the sleeve support 7 moves, it drives the rotating rod 8 to rotate. The rotation of the rotating rod 8 pushes the bonding block 9 to move outward, thereby making the bonding block 9 internally support and fix the connecting collar 15. When the bonding block 9 moves, it drives the sliding plate 10 to move inside the frame 5. Since the frame 5 is fixed by the sleeve 4, and the sleeve 4 is fixed by the housing 1, the bonding block 9 is fixed through the screw connection between the sleeve support 7 and the rotating column 6. The threaded connection, with the frame 5 fixed, ensures that the connecting collar 15 is fixed in the same position for limiting its movement. The thread also has a self-locking characteristic, which further restricts the position of the shaft 2, preventing parts from loosening due to vibration. The input shaft 11 is then driven by the drive source, which in turn drives the input gear 12 to rotate. The rotation of the input gear 12 drives the first-stage reduction gear 3 to rotate, which in turn drives the second-stage reduction gear 14 to rotate, thereby causing the output shaft 13 to rotate. This allows the output shaft 13 to transmit force to the other components, reducing the output speed and slowing down the wear rate of the connected equipment components during operation.

[0028] This structure not only allows the connecting collar 15 to be fixed in the same position for limiting, but also the thread has a self-locking characteristic, which can further limit the position of the shaft 2 and prevent the parts from loosening due to vibration.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A fastening structure for preventing loosening of internal components of a speed reducer, including a housing (1), characterized in that: The outer shell (1) is rotatably connected to a shaft (2), and a first-stage reduction gear (3) is fixedly connected to the outer wall of the shaft (2). The outer wall of the outer shell (1) is fixedly connected to a sleeve (4), and a frame (5) is fixedly connected inside the sleeve (4). A rotating column (6) is rotatably connected inside the frame (5). A sleeve bracket (7) is threadedly connected to the outer wall of the rotating column (6). A rotating rod (8) is rotatably connected to the outer wall of the sleeve bracket (7). A fitting block (9) is rotatably connected to the outer wall of the rotating rod (8). A sliding plate (10) is fixedly connected to the outer wall of the fitting block (9). The outer wall of the sliding plate (10) is slidably connected to the outer wall of the frame (5). A connecting collar (15) is fitted to the outer wall of the fitting block (9). An input component is provided inside the outer shell (1). The input component is used to drive the reducer to run.

2. The anti-loosening fastening structure for internal components of the speed reducer according to claim 1, characterized in that: The input component includes an input shaft (11), the outer wall of which is rotatably connected to the inside of the housing (1), and an input gear (12) is fixedly connected to the outer wall of the housing (1). The tooth end of the input gear (12) is meshed with the tooth end of the first-stage reduction gear (3).

3. The anti-loosening fastening structure for internal components of the speed reducer according to claim 2, characterized in that: The outer wall of the connecting collar (15) is rotatably connected to the inner wall of the shaft (2).

4. The anti-loosening fastening structure for internal components of the speed reducer according to claim 3, characterized in that: The outer wall of the sleeve (4) is fixedly connected to the outer wall of the outer shell (1).

5. The anti-loosening fastening structure for internal components of the speed reducer according to claim 4, characterized in that: The teeth of the first-stage reduction gear (3) are meshed with the second-stage reduction gear (14), and the inner wall of the second-stage reduction gear (14) is fixedly connected to the output shaft (13).

6. The anti-loosening fastening structure for internal components of the speed reducer according to claim 5, characterized in that: The outer wall of the output shaft (13) is rotatably connected to the inner wall of the outer casing (1).

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