Speed reducer convenient to mount and dismount

Abstract

The utility model discloses a speed reducer convenient to mount and dismount, which belongs to the technical field of speed reducers, and comprises a shell, a plurality of connecting rods and a plurality of connecting rods, the reduction gear set is arranged in the mounting cavity, and positioning frame plates are detachably mounted at the two ends of the reduction gear set; the cover plate is arranged on the shell in a covering manner; a positioning groove is formed in the bottom of the mounting cavity, and a positioning convex ring is fixedly arranged on the inner end face of the cover plate. The reduction gear set comprises an input gear, a transmission gear and an output gear, and detachably connected gear shafts are inserted into the three gears. According to the technical key points, positioning frame plates on the two sides can be positioned and clamped through positioning grooves formed in the bottom of the mounting cavity and positioning convex rings fixedly arranged on the inner end face of the cover plate, then positioning mounting of the whole reduction gear set is completed, the mounting efficiency can be improved, and the mounting precision can be ensured; and the effects of saving cost and avoiding material waste can be achieved in a mode of independently replacing the gear.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a speed reducer that is easy to install and disassemble. Background Technology

[0002] Speed ​​reducers are key equipment in industrial transmission. They convert the high-speed rotation of power sources such as motors into low-speed, high-torque output through structures like gears, worm gears, or planetary gear systems, achieving precise matching of speed and torque. Their core function is to reduce equipment operating speed, enhance load driving capacity, optimize power transmission efficiency, and protect system safety. With their compact structure, smooth transmission, and high load-bearing capacity, speed reducers are widely used in robotics, CNC machine tools, conveying equipment, lifting machinery, and new energy vehicles, becoming indispensable transmission components in automated production lines, intelligent manufacturing, and heavy industry, playing a crucial role in improving equipment performance and operational stability.

[0003] Utility model CN222650517U discloses a gear reducer, relating to the field of reducer technology. The gear reducer includes a body, a threaded rod connected to a threaded groove in the top of the body, a collar at the top of the threaded rod, and a sliding groove formed on the inner wall of the threaded groove. The sliding groove cavity penetrates both sides of the inner wall of the threaded groove and extends through the threaded groove. A limiting rod is slidably connected within the sliding groove, extending laterally through the threaded groove cavity. A worm gear and a worm are rotatably connected to the inner wall of the sliding groove, meshing with each other. The worm gear is threaded onto the outside of the limiting rod. In this gear reducer, by setting a limiting rod and using the limiting rod to laterally insert the threaded rod, the rotation of the threaded rod is restricted, as is preventing the threaded rod from disengaging from the threaded groove. Therefore, the stability and safety of the gear reducer installation can be effectively improved. Furthermore, the fixing method of the limiting rod can increase its service life.

[0004] While the above-mentioned solution can improve the stability and safety of gear reducer installation, it is consistent with the common gear set configuration of reducers on the market, namely, the gear set is fixedly connected to the reducer housing through bearings. This installation method requires the individual installation of each gear in the gear set. In the subsequent gear assembly process, the presence of already installed gears meshing with it will interfere with the installation work. Furthermore, in the subsequent disassembly and maintenance process, individual gears need to be disassembled one by one, making it impossible to easily and quickly remove the entire gear set for observation and efficient and rapid assessment of its working condition. In addition, the gears in the gear set are usually fixedly connected to the gear shaft. When the gear wears out, the gear and the drive shaft need to be replaced together, which easily leads to material waste and increases the cost of use and maintenance. Therefore, to address the above problems, a reducer that is easy to install and disassemble is proposed. Utility Model Content

[0005] To address the technical problems in comparative technologies, where each gear in a gear set must be installed and disassembled individually, resulting in low assembly efficiency, inability to efficiently remove the entire gear set during maintenance to determine if it is faulty, and the fixed connection between the gear shaft and the gears, which easily leads to material waste and increases the cost of use and maintenance, this utility model provides a speed reducer that is easy to install and disassemble.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A speed reducer that is easy to install and disassemble includes a housing with an internal mounting cavity; a reduction gear set disposed in the mounting cavity, both ends of which are detachably mounted with positioning bracket plates; and a cover plate covering the opening of the housing and bolted thereto. The mounting cavity has a positioning groove at its bottom, and the inner end face of the cover plate is fixedly provided with a positioning protrusion ring. One end of the positioning bracket plate of the reduction gear set is engaged in the positioning groove, and the other end of the positioning bracket plate is engaged in the positioning protrusion ring. The reduction gear set includes an input gear, a transmission gear, and an output gear, and each of the three gears is detachably connected to a gear shaft.

[0008] In one possible implementation, the positioning frame plate includes a plate body on which three connecting bearings are mounted, the positions of which correspond one-to-one with the positions of the gear shafts. The gear shafts are fixedly connected to the inner rings of the connecting bearings. In addition, an overhead ring plate is fixedly provided at the edge of the outer end face of the plate body, and the end of the gear shaft does not extend beyond the plane of the outer end face of the overhead ring plate.

[0009] In one possible implementation, a number of slots are provided on the main body of the plate near the positioning groove, and a number of protruding blocks are fixedly provided in the positioning groove. The positions of the blocks and the slots correspond and their sizes match.

[0010] In one possible implementation, the input gear, transmission gear, and output gear are all provided with grooves in the middle, and the gear shaft is fixedly provided with a retaining ring corresponding to the groove, and a limiting ring is sleeved on the gear shaft, which is bolted to both ends of the input gear, transmission gear, and output gear.

[0011] In one possible implementation, the transmission gear is composed of a combination of a large gear and a small gear, wherein the input gear meshes with the large gear of the transmission gear, and the output gear meshes with the small gear of the transmission gear.

[0012] In one possible implementation, the housing has an input hole, the input gear shaft is fixedly connected to the end of the input gear shaft and extends out of the input hole, the cover plate has an output hole, and the output gear shaft is fixedly connected to the end of the output gear shaft and extends out of the output hole.

[0013] In one possible implementation, a closed cover sleeve fitted around the input shaft is bolted to the outer casing, and a closed cover sleeve fitted around the output shaft is bolted to the cover plate. The closed cover sleeve includes a base plate on which a cylinder body is fixedly mounted, and a plurality of sealing rings are installed inside the cylinder body.

[0014] In one possible implementation, a closing ring is fixedly provided on the inner end face of the cover plate, and after the cover plate is installed, the closing ring fits against the wall of the installation cavity.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] By setting positioning brackets at both ends of the reduction gear set, the entire reduction gear set is connected to the positioning brackets to form a complete reduction transmission structure. This allows it to be operated as a whole during assembly and disassembly, improving work efficiency. Furthermore, the aforementioned complete reduction transmission structure itself can perform the reduction transmission function, facilitating testing and analysis. To further improve installation efficiency and accuracy, the positioning groove at the bottom of the mounting cavity and the positioning protrusion fixed to the inner end face of the cover plate can respectively position and engage the positioning brackets on both sides, thereby completing the positioning and installation of the entire reduction gear set, improving installation efficiency and ensuring installation accuracy.

[0017] Because the gear shaft is plugged into the input gear, transmission gear, and output gear, and the transmission is achieved through the snap-fit ​​of the ferrules and grooves, and the gear shaft can be fixed to the corresponding gear by the limit ring after installation to ensure that the gear does not slide on the gear shaft, the gear shaft and the corresponding gear can be detachably connected, and the transmission stability can be ensured. After the gear teeth wear, the gear can be replaced individually, which saves costs and avoids material waste. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the reduction gear set structure of this utility model. Figure 1 ;

[0022] Figure 4This is a schematic diagram of the reduction gear set structure of this utility model. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the closed cover structure of this utility model.

[0024] In the diagram: 1. Outer shell; 11. Mounting cavity; 12. Positioning groove; 13. Clamping block; 14. Input hole; 2. Reduction gear set; 21. Input gear; 22. Transmission gear; 23. Output gear; 24. Gear shaft; 241. Clamping rib; 242. Limiting ring; 25. Input shaft; 26. Output shaft; 201. Rack groove; 3. Positioning frame plate; 31. Plate body; 32. Connecting bearing; 33. Clamping groove; 34. Overhead ring plate; 4. Cover plate; 41. Positioning convex ring; 42. Closing ring; 43. Output hole; 5. Enclosed cover cylinder; 51. Base plate; 52. Cylinder body; 53. Sealing ring. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 - Figure 3 As shown, this embodiment provides a speed reducer that is easy to install and disassemble, including a housing 1 with an installation cavity 11 inside; a reduction gear set 2, which is disposed in the installation cavity 11 and has a positioning bracket plate 3 detachably installed at both ends; and a cover plate 4, which covers the opening of the housing 1 and is bolted to it; wherein, a positioning groove 12 is provided at the bottom of the installation cavity 11, and a positioning protrusion ring 41 is fixedly provided on the inner end face of the cover plate 4, the positioning bracket plate 3 at one end of the reduction gear set 2 is engaged in the positioning groove 12, and the positioning bracket plate 3 at the other end is engaged in the positioning protrusion ring 41.

[0027] Based on the above scheme, the entire reduction gear set 2 and the positioning frame plate 3 are connected into a whole structure for reduction transmission. Thus, during assembly and disassembly, it can be operated as a whole, improving work efficiency. Furthermore, the whole structure of the reduction transmission itself can perform the reduction transmission function, which is convenient for testing and analysis. To further improve installation efficiency and installation accuracy, the positioning groove 12 opened at the bottom of the mounting cavity 11 and the positioning protrusion 41 fixedly set on the inner end face of the cover plate 4 can respectively position and engage the positioning frame plates 3 on both sides, thereby completing the positioning and installation of the entire reduction gear set 2, which can improve installation efficiency and ensure installation accuracy.

[0028] The positioning frame plate 3 includes a plate body 31 on which three connecting bearings 32 are installed. Their positions correspond one-to-one with the positions of the gear shaft 24. The gear shaft 24 is fixedly connected to the inner ring of the connecting bearing 32. In addition, an overhead ring plate 34 is fixedly installed at the outer end edge of the plate body 31, and the shaft end of the gear shaft 24 does not exceed the plane of the outer end face of the overhead ring plate 34. In the above structure, the positioning and installation of the corresponding gear is completed by the fixed connection between the connecting bearing 32 and the gear shaft 24. Furthermore, the overhead ring plate 34 can play an overhead role by contacting the outer shell 1 and the cover plate 4, avoiding the gear shaft 24 from directly contacting the outer shell 1 and the cover plate 4 and causing wear.

[0029] To ensure that the positioning bracket 3 can smoothly and quickly snap into the positioning slot 12 during installation, such as... Figure 1 , Figure 3 As shown, several slots 33 are provided on the plate body 31 near the positioning groove 12, and several protruding blocks 13 are fixedly provided in the positioning groove 12. The blocks 13 and the slots 33 are in corresponding positions and have the same size. The block 13 can guide the placement of the positioning frame plate 3 through the snap-fit ​​action between the block 13 and the slot 33. After the block 13 and the slot 33 are snap-fitted, the overall structure formed by connecting the reduction gear set 2 and the positioning frame plate 3 can be inserted to ensure that the corresponding positioning frame plate 3 can be snapped into the positioning groove 12.

[0030] In addition, such as Figure 3 - Figure 4 As shown, the reduction gear set 2 includes an input gear 21, a transmission gear 22, and an output gear 23, and each of the three gears is connected to a detachable gear shaft 24. The input gear 21, transmission gear 22, and output gear 23 are all provided with a groove 201 in the middle. The gear shaft 24 is fixedly provided with a retaining ring 241 corresponding to the groove 201, and a limiting ring 242 is sleeved on the gear shaft 24, which is bolted to both ends of the input gear 21, transmission gear 22, and output gear 23.

[0031] Since the gear shaft 24 is plugged into the input gear 21, the transmission gear 22, and the output gear 23, and the transmission is achieved by the engagement of the retaining ring 241 and the groove 201, and after installation, the gear shaft 24 can be fixedly connected to the corresponding gear by the limiting ring 242 to ensure that the gear does not slide on the gear shaft 24, thus achieving a detachable connection between the gear shaft 24 and the corresponding gear and ensuring the stability of the transmission. After the gear teeth wear out, the gear can be replaced individually, which saves costs and avoids material waste.

[0032] To achieve the speed reduction transmission function of the reducer, the transmission gear 22 is composed of a large gear and a small gear. The input gear 21 meshes with the large gear of the transmission gear 22, and the output gear 23 meshes with the small gear of the transmission gear 22. Based on the above structure, the speed reduction function can be achieved by using a smaller gear to drive a larger gear. In addition, the housing 1 has an input hole 14, and the end of the gear shaft 24 of the input gear 21 is fixedly connected to an input shaft 25, which extends out of the input hole 14. The cover plate 4 has an output hole 43, and the end of the gear shaft 24 of the output gear 23 is fixedly connected to an output shaft 26, which extends out of the output hole 43. The above structure allows external torque to be transmitted to the input gear 21 through the input shaft 25, thereby driving the output gear 23 to rotate, and then outputting the reduced torque through the output shaft 26.

[0033] To ensure the sealing of the positions where the input shaft 25 and the output shaft 26 are located, such as Figure 1 - Figure 2 As shown, a closed cover 5, which is sleeved on the input shaft 25, is bolted to the outer casing 1, and a closed cover 5, which is sleeved on the output shaft 26, is bolted to the cover plate 4.

[0034] Among them, such as Figure 5 As shown, the enclosed cover 5 includes a base plate 51 on which a cylinder body 52 is fixedly mounted. Several sealing rings 53 are installed inside the cylinder body 52, which can seal the gaps between the cylinder body 52 and the input shaft 25 and the output shaft 26, thereby improving the sealing performance of the entire reducer.

[0035] like Figure 2 As shown, a sealing ring 42 is fixedly provided on the inner end face of the cover plate 4. After the cover plate 4 is installed, the sealing ring 42 fits against the cavity wall of the mounting cavity 11. The above structural scheme can improve the sealing performance of the connection between the cover plate 4 and the outer shell 1, thereby improving the sealing effect of the entire reducer.

[0036] The working principle and usage process of this utility model:

[0037] During assembly and disassembly, the reduction gear set 2 and the positioning frame plates 3 connected to both sides can be treated as a whole for operation, improving work efficiency; and the overall structure of the above-mentioned reduction transmission can itself complete the reduction transmission function, which facilitates testing and analysis.

[0038] Meanwhile, the positioning groove 12 at the bottom of the mounting cavity 11 and the positioning protrusion 41 fixedly installed on the inner end face of the cover plate 4 can respectively position and engage the positioning bracket plates 3 on both sides, thereby completing the positioning and installation of the entire reduction gear set 2, which can improve installation efficiency and ensure installation accuracy.

[0039] Since the gear shaft 24 is plugged into the input gear 21, the transmission gear 22 and the output gear 23, and the transmission is achieved by the engagement of the retaining ring 241 and the groove 201, and after installation, the gear shaft 24 can be fixedly connected to the corresponding gear by the limiting ring 242 to ensure that the gear does not slide on the gear shaft 24, thus achieving a detachable connection between the gear shaft 24 and the corresponding gear and ensuring the stability of the transmission. After the gear teeth wear, the corresponding gear can be replaced individually.

[0040] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A speed reducer that is easy to install and disassemble, characterized in that, include: The outer shell (1) has an installation cavity (11) inside; The reduction gear set (2) is set in the mounting cavity (11), and both ends of it can be detachably mounted with positioning bracket plates (3); Cover plate (4), which covers the opening of the outer shell (1) and is bolted to it; The mounting cavity (11) has a positioning groove (12) at the bottom, and the inner end face of the cover plate (4) is fixedly provided with a positioning protrusion ring (41). The positioning frame plate (3) at one end of the reduction gear set (2) is engaged in the positioning groove (12), and the positioning frame plate (3) at the other end is engaged in the positioning protrusion ring (41). The reduction gear set (2) includes an input gear (21), a transmission gear (22) and an output gear (23), and each of the three gears is connected to a detachable gear shaft (24).

2. The speed reducer that is easy to install and disassemble according to claim 1, characterized in that: The positioning frame plate (3) includes a plate body (31) on which three connecting bearings (32) are installed. Their positions correspond one-to-one with the positions of the gear shaft (24). The gear shaft (24) is fixedly connected to the inner ring of the connecting bearing (32). In addition, an overhead ring plate (34) is fixedly installed at the edge of the outer end face of the plate body (31), and the shaft end of the gear shaft (24) does not extend beyond the plane of the outer end face of the overhead ring plate (34).

3. The speed reducer that is easy to install and disassemble according to claim 2, characterized in that: Several slots (33) are provided on the plate body (31) near the positioning groove (12), and several protruding blocks (13) are fixedly provided in the positioning groove (12). The positions of the blocks (13) and the slots (33) correspond and their sizes match.

4. The speed reducer that is easy to install and disassemble according to claim 1, characterized in that: The input gear (21), transmission gear (22) and output gear (23) are all provided with a groove (201) in the middle. The gear shaft (24) is fixedly provided with a retaining rib (241) corresponding to the groove (201), and a limiting ring (242) is sleeved on the gear shaft (24), which is bolted to both ends of the input gear (21), transmission gear (22) and output gear (23).

5. A speed reducer that is easy to install and disassemble according to claim 1, characterized in that: The transmission gear (22) is composed of a large gear and a small gear. The input gear (21) meshes with the large gear of the transmission gear (22), and the output gear (23) meshes with the small gear of the transmission gear (22).

6. A speed reducer that is easy to install and disassemble according to claim 1, characterized in that: An input hole (14) is provided on the outer casing (1). An input shaft (25) is fixedly connected to the end of the gear shaft (24) of the input gear (21), which extends out of the input hole (14). An output hole (43) is provided on the cover plate (4). An output shaft (26) is fixedly connected to the end of the gear shaft (24) of the output gear (23), which extends out of the output hole (43).

7. A speed reducer that is easy to install and disassemble according to claim 6, characterized in that: A closed cover (5) sleeved on the input shaft (25) is bolted to the outer shell (1), and a closed cover (5) sleeved on the output shaft (26) is bolted to the cover plate (4). The closed cover (5) includes a base plate (51) on which a cylinder body (52) is fixedly installed. Several sealing rings (53) are installed inside the cylinder body (52).

8. A speed reducer that is easy to install and disassemble according to claim 1, characterized in that: A sealing ring (42) is fixedly provided on the inner end face of the cover plate (4). After the cover plate (4) is installed, the sealing ring (42) fits against the cavity wall of the mounting cavity (11).

Images