High-strength supporting type speed reducer gear

Abstract

The utility model belongs to the technical field of speed reducer gears, and discloses a high-strength supporting type speed reducer gear which comprises a shaft body and a mounting wheel fixedly arranged on the shaft body, the mounting wheel is movably sleeved with a gear ring, a plurality of connecting blocks are arranged on the mounting wheel in the circumferential direction at intervals, and connecting grooves are formed in the positions, corresponding to the connecting blocks, of the gear ring; a fixing ring is arranged on one side of the installation wheel, a fixing groove is formed in the gear ring corresponding to the fixing ring, a guide assembly facilitating installation of the gear ring is arranged on the fixing ring, limiting teeth are arranged on the installation wheel, limiting grooves are formed in the gear ring corresponding to the limiting teeth, and a fixing assembly for fixing the gear ring is arranged on the shaft body. The limiting grooves are aligned with the limiting teeth, so that after the gear ring is replaced, the original meshing relation between the gear ring and the gear matched with the gear ring is maintained. The fixing ring is clamped into the fixing groove, and positioning of the axial position of the gear ring is achieved. The connection block is matched with the connection groove so that the installation wheel and the gear ring can be fixed in the circumferential direction.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer gear technology, and in particular to a speed reducer gear with high strength support. Background Technology

[0002] Gear reducers are generally used in low-speed, high-torque transmission equipment. They reduce the speed of electric motors, internal combustion engines, or other high-speed power sources by meshing a gear with fewer teeth on the input shaft with a larger gear on the output shaft. Ordinary gear reducers may also have several pairs of gears that work on the same principle to achieve the desired speed reduction effect. The ratio of the number of teeth on the large gear to the number of teeth on the small gear is the transmission ratio.

[0003] Chinese utility model patent CN218582194U discloses a high-strength support type reducer gear, including a fixed mounting wheel, a quick-release gear ring, and a mounting shaft. The quick-release gear ring is located on the outside of the fixed mounting wheel. The fixed mounting wheel has quick-release mechanisms equidistantly arranged inside. The quick-release mechanism includes a sliding block, a push rod, a spring, a connecting groove, a connecting rod, and a bevel. The fixed mounting wheel has grooves equidistantly opened inside, and sliding blocks are slidably connected inside each groove. A push rod is fixedly connected to the side of each pair of sliding blocks that are far apart. The quick-release gear ring has slots equidistantly opened inside to cooperate with the push rods. The ends of each pair of push rods that are far apart extend to the outside of the fixed mounting wheel and engage with the corresponding slots, thereby connecting the quick-release gear ring and the fixed mounting wheel.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: After the quick-release gear ring in the device is fitted onto the fixed mounting wheel, its axial and circumferential positions are difficult to control precisely, resulting in the slot not accurately aligning with the push rod, thus reducing assembly efficiency and operational convenience. Furthermore, due to the difficulty in controlling its position, the replaced gear ring cannot maintain its original meshing parameters, making it impossible to guarantee that the meshing relationship between the replaced gear ring and its mating gear is consistent with the initial state, affecting the operational stability of the transmission system. Utility Model Content

[0005] To solve the above problems, this utility model provides a reducer gear with high-strength support.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a reducer gear with high strength support, comprising a shaft and a mounting wheel fixedly mounted on the shaft, a toothed ring movably sleeved on the mounting wheel, a plurality of connecting blocks spaced circumferentially on the mounting wheel, a connecting groove corresponding to the connecting blocks on the toothed ring, a fixing ring on one side of the mounting wheel, a fixing groove corresponding to the fixing ring on the toothed ring, a guide component for facilitating the installation of the toothed ring on the fixing ring, a limiting tooth on the mounting wheel, a limiting groove corresponding to the limiting tooth on the toothed ring, and a fixing component for fixing the toothed ring on the shaft.

[0007] By adopting the above technical solution, which includes a connecting block, connecting groove, limiting teeth, guiding components, and fixing components, when the gear ring needs to be replaced, the limiting groove and limiting teeth are aligned to maintain the original meshing relationship between the gear ring and its mating gear. During installation, the guiding components guide the movement of the gear ring to ensure smooth engagement between the gear ring and the mounting wheel. The gear ring is pushed until the fixing ring engages in the fixing groove, achieving axial positioning of the gear ring. During this process, the connecting block and connecting groove ensure the fixing of the mounting wheel and the gear ring in the circumferential direction. Finally, the fixing components secure the gear ring, resulting in high assembly efficiency and convenient operation.

[0008] Furthermore, the guide assembly includes two guide rods symmetrically arranged on the side of the fixed ring adjacent to the connecting block. The axis of the guide rod is parallel to the axis of the mounting wheel. The length of the guide rod is greater than the thickness of the toothed ring. The toothed ring has guide holes corresponding to the guide rods.

[0009] By adopting the above technical solution and setting guide rods and guide holes, since the diameter of the mounting wheel is the same as the inner diameter of the toothed ring, it is difficult to manually mate the toothed ring with the mounting wheel. Therefore, before the toothed ring contacts the mounting wheel, the guide rod is first matched with the guide hole to make the toothed ring parallel to the mounting wheel. Then, the toothed ring is pushed to install it, which is more convenient.

[0010] Furthermore, a reinforcing ring is provided on the side of the toothed ring away from the fixing groove.

[0011] By adopting the above technical solution, a reinforcing ring is set on the side of the toothed ring away from the fixed groove to support the toothed ring, thereby improving the structural strength of the toothed ring.

[0012] Furthermore, a positioning groove is provided on the side of the reinforcing ring away from the limiting groove, corresponding to the limiting groove.

[0013] By adopting the above technical solution, a positioning groove is provided on the side of the reinforcing ring away from the limiting groove, which makes it easy to know the position of the limiting groove during assembly and facilitates the engagement of the limiting groove with the limiting tooth.

[0014] Furthermore, the fixing assembly includes a threaded tube disposed on the side of the mounting wheel away from the fixing ring, the threaded tube being fixedly connected to the shaft, a nut being helically disposed on the threaded tube, the inner diameter of the reinforcing ring being larger than the outer diameter of the threaded tube, and the length of the threaded tube being greater than the thickness of the reinforcing ring.

[0015] By adopting the above technical solution, a threaded pipe and a nut are set. After the toothed ring is installed, the nut is screwed onto the threaded pipe and then tightened so that one side of the nut abuts against the reinforcing ring, thereby fixing the position of the toothed ring.

[0016] Furthermore, a through hole is provided on the reinforcing ring corresponding to the guide hole, and the length of the guide rod is consistent with the distance from the side of the reinforcing ring away from the fixing groove to the wall of the fixing groove.

[0017] By adopting the above technical solution, the length of the guide rod is set to be consistent with the distance from the side of the reinforcing ring away from the fixed groove to the wall of the fixed groove, ensuring that after the toothed ring is installed, the end of the guide rod is flush with the outer side of the reinforcing ring and will not interfere with the tightening of the nut.

[0018] Furthermore, a first fixing block is circumferentially spaced on the side of the fixing ring away from the connecting block, and a second fixing block is provided on one side of the toothed ring corresponding to the first fixing block. The first fixing block has a screw hole on the side away from the shaft, and the second fixing block has a through hole. A bolt passes through the through hole and is screwed into the screw hole to connect the second fixing block and the first fixing block.

[0019] By adopting the above technical solution, a first fixing block and a second fixing block are set up. Bolts are passed through the through holes and screwed into the screw holes to connect the second fixing block and the first fixing block, thereby increasing the connection between the mounting wheel and the gear ring and enhancing the overall structural strength.

[0020] Furthermore, a support ring is provided on the side of the fixing ring away from the connecting block, the inner ring of the support ring being fixedly connected to the shaft body, and the outer ring being fixedly connected to several first fixing blocks.

[0021] By adopting the above technical solution, a support ring is set on the side of the fixed ring away from the connecting block, which further improves the structural strength.

[0022] Furthermore, the end of the guide rod away from the fixing ring has a rounded corner.

[0023] By adopting the above technical solution, a rounded corner is provided at the end of the guide rod away from the fixed ring, which facilitates the insertion of the guide rod into the guide hole.

[0024] In summary, this utility model has the following beneficial effects: By incorporating a connecting block, connecting groove, limiting teeth, guiding components, and fixing components, when the gear ring needs to be replaced, the limiting groove and limiting teeth are aligned, ensuring that the original meshing relationship between the gear ring and its mating gear remains unchanged after replacement. During installation, the guiding components guide the movement of the gear ring, ensuring smooth engagement between the gear ring and the mounting wheel. The gear ring is pushed until the fixing ring engages in the fixing groove, achieving axial positioning of the gear ring. During this process, the connecting block and connecting groove ensure the fixing of the mounting wheel and the gear ring in the circumferential direction. Finally, the fixing components secure the gear ring, resulting in high assembly efficiency and convenient operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of this utility model;

[0027] Figure 3 yes Figure 1 A front sectional view;

[0028] Figure 4 yes Figure 1 Side sectional view;

[0029] Figure 5 This is a schematic diagram of the structure of the mounting wheel in an embodiment of this utility model;

[0030] Figure 6 This is a structural schematic diagram of the mounting wheel from another angle in an embodiment of this utility model;

[0031] Figure 7 This is a schematic diagram of the toothed ring structure according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the toothed ring from another angle in an embodiment of this utility model.

[0033] In the diagram: 10, shaft; 20, mounting wheel; 21, connecting block; 22, retaining ring; 23, limiting tooth; 24, first fixing block; 25, screw hole; 26, support ring; 30, toothed ring; 31, connecting groove; 32, fixing groove; 33, reinforcing ring; 331, through hole; 34, limiting groove; 35, positioning groove; 36, second fixing block; 37, through hole; 40, guide assembly; 41, guide rod; 42, guide hole; 50, fixing assembly; 51, threaded tube; 52, nut. Detailed Implementation

[0034] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] like Figure 1-8 As shown in the illustration, this application discloses a high-strength support type reducer gear, including a shaft 10, a mounting wheel 20, a gear ring 30, a guide assembly 40, and a fixing assembly 50. The mounting wheel 20 is fixedly mounted on the shaft 10 and arranged concentrically, and the gear ring 30 is movably sleeved on the mounting wheel 20. The mounting wheel 20 has several connecting blocks 21 spaced circumferentially, and the gear ring 30 has corresponding connecting grooves 31. The connecting blocks 21 and the connecting grooves 31 cooperate to ensure the circumferential fixation of the mounting wheel 20 and the gear ring 30. A fixing ring 22 is provided on one side of the mounting wheel 20, and a fixing groove 32 is provided on the gear ring 30 corresponding to the fixing ring 22. The fixing ring 22 is engaged in the fixing groove 32 to achieve axial positioning of the gear ring 30. The guide assembly 40 is provided on the fixing ring 22 to facilitate the installation of the gear ring 30. The mounting wheel 20 is provided with a limiting tooth 23, and the gear ring 30 is provided with a limiting groove 34 corresponding to the limiting tooth 23. The limiting groove 34 is aligned with the limiting tooth 23, so that after the gear ring 30 is replaced, the original meshing relationship between it and the gear it meshes with remains unchanged. The fixing component 50 is provided on the shaft 10 and is used to fix the gear ring 30.

[0036] Specifically, the guide assembly 40 includes two guide rods 41 symmetrically arranged on the side of the fixed ring 22 adjacent to the connecting block 21. The axis of the guide rod 41 is parallel to the axis of the mounting wheel 20. A guide hole 42 is provided on the toothed ring 30 corresponding to the guide rod 41. The length of the guide rod 41 is greater than the thickness of the toothed ring 30, so that the guide rod 41 can be inserted into the guide hole 42 before the toothed ring 30 contacts the mounting wheel 20. Since the diameter of the mounting wheel 20 is the same as the inner diameter of the toothed ring 30, it is difficult to manually mate the toothed ring 30 with the mounting wheel 20. Therefore, before the toothed ring 30 contacts the mounting wheel 20, the guide rod 41 is first mated with the guide hole 42 so that the adjacent surfaces of the toothed ring 30 and the mounting wheel 20 are parallel. Then, the toothed ring 30 is pushed to install it, which is more convenient. The end of the guide rod 41 away from the fixed ring 22 has a rounded corner to facilitate the insertion of the guide rod 41 into the guide hole 42.

[0037] A reinforcing ring 33 is provided on the side of the toothed ring 30 away from the fixing groove 32 to support the toothed ring 30 and thus improve the structural strength of the toothed ring 30. A positioning groove 35 is provided on the side of the reinforcing ring 33 away from the limiting groove 34, corresponding to the limiting groove 34, so that the position of the limiting groove 34 can be accurately known during assembly, which facilitates the engagement of the limiting groove 34 with the limiting tooth 23.

[0038] During installation, the fixing assembly 50 includes a threaded tube 51 disposed on the side of the mounting wheel 20 away from the fixing ring 22. The threaded tube 51 is fixedly connected to the shaft 10, and a nut 52 is screwed onto the threaded tube 51. Before installing the gear ring 30, the nut 52 needs to be unscrewed. The inner diameter of the reinforcing ring 33 is larger than the outer diameter of the threaded tube 51, thus avoiding obstruction of the threaded tube 51. The length of the threaded tube 51 is greater than the thickness of the reinforcing ring 33, so that after the gear ring 30 is installed, the reinforcing ring 33 will not completely obstruct the threaded tube 51. After the gear ring 30 is installed, the nut 52 is screwed onto the threaded tube 51 and then tightened, so that one side of the nut 52 abuts against the reinforcing ring 33, thereby fixing the position of the gear ring 30. The length of the guide rod 41 is the same as the distance from the side of the reinforcing ring 33 away from the fixed groove 32 to the groove wall of the fixed groove 32. A through hole 331 is opened on the reinforcing ring 33 corresponding to the guide hole 42 to ensure that after the toothed ring 30 is installed, the end of the guide rod 41 is flush with the outer side of the reinforcing ring 33 and will not interfere with the tightening of the nut 52.

[0039] In a specific configuration, first fixing blocks 24 are spaced circumferentially on the side of the fixing ring 22 away from the connecting block 21. Second fixing blocks 36 are positioned on one side of the gear ring 30 corresponding to the first fixing blocks 24. Screw holes 25 are provided on the side of the first fixing blocks 24 away from the shaft 10. Through holes 37 are provided on the second fixing blocks 36. Bolts pass through the through holes 37 and are screwed into the screw holes 25 to connect the second fixing blocks 36 and the first fixing blocks 24, increasing the connection between the mounting wheel 20 and the gear ring 30, and simultaneously enhancing the overall structural strength. A support ring 26 is provided on the side of the fixing ring 22 away from the connecting block 21. The inner ring of the support ring 26 is fixedly connected to the shaft 10, and the outer ring is fixedly connected to several first fixing blocks 24, further improving structural strength.

[0040] The operating principle of a high-strength support type reducer gear in this embodiment is as follows: When installing a new gear ring 30, first align the limiting groove 34 with the limiting tooth 23, then move the gear ring 30 so that the guide rod 41 is inserted into the guide hole 42. Continue pushing the gear ring 30 until it can no longer be pushed. At this time, the fixing ring 22 is engaged in the fixing groove 32, and the connecting block 21 cooperates with the connecting groove 31. Then screw the nut 52 onto the threaded tube 51 and tighten it so that one side of the nut 52 abuts against the reinforcing ring 33, thereby fixing the position of the gear ring 30. Finally, pass the bolt through the through hole 37 and screw it into the screw hole 25 to connect the second fixing block 36 and the first fixing block 24, increasing the connection between the mounting wheel 20 and the gear ring 30, and at the same time, enhancing the overall structural strength. The assembly efficiency is high and the operation is convenient.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-strength support type reducer gear, comprising a shaft (10) and a mounting wheel (20) fixedly mounted on the shaft (10), wherein a gear ring (30) is movably sleeved on the mounting wheel (20), characterized in that: The mounting wheel (20) is provided with several connecting blocks (21) spaced circumferentially. The toothed ring (30) is provided with connecting grooves (31) corresponding to the connecting blocks (21). A fixing ring (22) is provided on one side of the mounting wheel (20). A fixing groove (32) is provided on the toothed ring (30) corresponding to the fixing ring (22). A guide component (40) is provided on the fixing ring (22) to facilitate the installation of the toothed ring (30). A limiting tooth (23) is provided on the mounting wheel (20). A limiting groove (34) is provided on the toothed ring (30) corresponding to the limiting tooth (23). A fixing component (50) is provided on the shaft (10) to fix the toothed ring (30).

2. A high-strength support type reducer gear according to claim 1, characterized in that: The guide assembly (40) includes two guide rods (41) symmetrically arranged on the side of the fixed ring (22) near the connecting block (21). The axis of the guide rod (41) is parallel to the axis of the mounting wheel (20). The length of the guide rod (41) is greater than the thickness of the toothed ring (30). The toothed ring (30) has a guide hole (42) corresponding to the guide rod (41).

3. A high-strength support type reducer gear according to claim 2, characterized in that: A reinforcing ring (33) is provided on the side of the toothed ring (30) away from the fixing groove (32).

4. A reducer gear with high-strength support according to claim 3, characterized in that: The reinforcing ring (33) has a positioning groove (35) on the side away from the limiting groove (34) corresponding to the limiting groove (34).

5. A reducer gear with high-strength support according to claim 3, characterized in that: The fixing component (50) includes a threaded tube (51) disposed on the side of the mounting wheel (20) away from the fixing ring (22). The threaded tube (51) is fixedly connected to the shaft (10). A nut (52) is screwed onto the threaded tube (51). The inner diameter of the reinforcing ring (33) is greater than the outer diameter of the threaded tube (51). The length of the threaded tube (51) is greater than the thickness of the reinforcing ring (33).

6. A reducer gear with high-strength support according to claim 3, characterized in that: A through hole (331) is provided on the reinforcing ring (33) corresponding to the guide hole (42), and the length of the guide rod (41) is consistent with the distance from the side of the reinforcing ring (33) away from the fixed groove (32) to the groove wall of the fixed groove (32).

7. A reducer gear with high-strength support according to claim 2, characterized in that: The fixing ring (22) is provided with a first fixing block (24) circumferentially spaced on the side away from the connecting block (21). The toothed ring (30) is provided with a second fixing block (36) on one side corresponding to the first fixing block (24). The first fixing block (24) is provided with a screw hole (25) on the side away from the shaft (10). The second fixing block (36) is provided with a through hole (37). The bolt passes through the through hole (37) and is screwed into the screw hole (25) to connect the second fixing block (36) and the first fixing block (24).

8. A reducer gear with high-strength support according to claim 7, characterized in that: A support ring (26) is provided on the side of the fixed ring (22) away from the connecting block (21). The inner ring of the support ring (26) is fixedly connected to the shaft (10), and the outer ring is fixedly connected to several first fixed blocks (24).

9. A reducer gear with high-strength support according to claim 2, characterized in that: The guide rod (41) has a rounded corner at the end away from the fixing ring (22).

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