Gap-adjustable rotary speed reducer
By designing an adjustable gap structure and optimizing heat dissipation design in the rotary reducer, the service life and efficiency reduction caused by the increase in the gap after long-term use is solved, and a longer service life, higher working efficiency and faster heat dissipation effect are achieved.
Patent Information
- Application Number
- CN202422327467.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-24
AI Technical Summary
After long-term use of the existing slewing reducer, due to the increase in the gap between the worm gear and the worm, the service life and working efficiency are reduced, and noise will be generated.
A rotary reducer with adjustable gap is designed. By installing adjustment components on the worm placing seat, and using mechanical structures such as hexagonal knobs, screws and pulleys, the clearance adjustment between the worm gear and the worm gear is achieved. At the same time, the heat dissipation performance is improved by setting a cooling tube inside the rotating tube and setting a heat dissipation fin on the outer surface of the base.
By adjusting the gap between the worm gear and the worm, the service life of the reducer is extended, the working efficiency is improved, the noise is reduced, and the cooling performance of the reducer is improved by optimizing the heat dissipation design.
Smart Images
Figure CN222950391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotary reducers, in particular to a rotary reducer with adjustable clearance. Background Art
[0002] The rotary reducer has the characteristic of large torque transmission torque. During long-term operation, the worm gear will inevitably wear out, resulting in a larger meshing clearance of the worm gear, which reduces the service life and working efficiency of the rotary reducer and generates noise. For this reason, we propose a rotary reducer with adjustable clearance. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a rotary reducer with adjustable gap, wherein an adjustment component for adjusting the gap between a worm wheel and a worm is installed on a worm placement seat, wherein the adjustment component rotates a set of screws by turning a hexagonal knob, and the other set of screws rotates a pulley through a belt between the two sets of screws, and the two sets of screws push a sliding seat slidably connected on a sliding frame, and since the worm is sleeved on a rotating tube, and the rotating tube is arranged between the two sets of sliding seats, the gap between the worm and the worm wheel can be adjusted, and the gap between the worm and the worm wheel can be prevented from increasing after the worm wheel is worn, thereby reducing the service life and working efficiency of the rotary reducer, and a cooling pipe is arranged inside the rotating tube, and a cooling circuit is formed by water inlet and outlet pipes, so that the heat generated by the rotation of the worm is taken away by water, and a plurality of heat dissipation fins are arranged around the outer surface of the base, so that the heat generated by the worm wheel when working is taken away faster, thereby improving the heat dissipation performance of the rotary reducer and solving the background problems.
[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a clearance-adjustable slewing reducer, comprising a base, a worm placement seat is arranged on the rear side of the base, the base is fixedly connected to the worm placement seat, a slewing bearing is installed on the inner bottom side of the base, a worm wheel is rotatably sleeved on the slewing bearing, an observation cover is arranged on the top side of the worm placement seat, and sliding frames are fixedly installed on the left and right sides of the inner part of the worm placement seat, the inner walls of the two groups of sliding frames are slidably connected with sliding seats, a rotating tube is rotatably penetrated between the two groups of sliding seats, a worm is fixedly sleeved on the rotating tube, the worm is meshed with the worm wheel, a driving component for driving the worm to rotate is installed on the worm placement seat, and an adjustment component for adjusting the clearance between the worm wheel and the worm is also installed on the worm placement seat.
[0005] Preferably, the driving assembly includes an electric motor, which is fixedly mounted on the rear side of the worm gear placement seat, the output shaft end of the motor passes through the inner wall of the worm gear placement seat and is fixedly connected to a spline sleeve, a spline shaft is inserted into the spline sleeve, and a rotating rod is fixedly connected to the front side of the spline shaft, one group of the sliding seats is fixedly connected to a connecting plate on the right side, the rotating rod is rotatably inserted into the connecting plate, the front end of the rotating rod is fixedly connected to a first bevel gear, and the right side of the rotating tube is fixedly sleeved with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.
[0006] Preferably, the adjustment assembly includes two groups of screws, the two groups of screws are rotatably mounted on the front sides of the inner walls of the two groups of sliding frames, and the two groups of sliding seats are threadedly sleeved on the two groups of screws, the rear ends of the two groups of screws pass through the sliding frames and the worm gear placement seats and are fixedly connected with pulleys, a belt is tensioned and sleeved between the two groups of pulleys, and a hexagonal knob is fixedly connected to the rear side of one group of pulleys.
[0007] Preferably, the upper and lower sides of the sliding seat are fixedly connected to limit bars, the upper and lower sides of the inner wall of the sliding frame are provided with limit grooves, and the limit bars are slidably connected to the limit grooves.
[0008] Preferably, sliding holes are provided on the left and right sides of the worm gear placement seat, and sliding blocks are slidably connected to the two groups of sliding holes. A water inlet pipe and a water outlet pipe are respectively passed through the two groups of sliding blocks. A cover plate is fixedly sleeved on the side of the water inlet pipe and the water outlet pipe away from the worm gear placement seat, and a cooling pipe is rotatably passed through the interior of the rotating tube, and the two ends of the cooling pipe are fixedly connected to the water inlet pipe and the water outlet pipe, respectively.
[0009] Preferably, a plurality of groups of heat dissipation fins are arranged around the outer surface of the base.
[0010] The utility model provides a slewing reducer with adjustable clearance, which has the following beneficial effects compared with the prior art:
[0011] 1. An adjusting assembly for adjusting the gap between the worm wheel and the worm is installed on the worm placement seat. The adjusting assembly rotates one set of screws by turning the hexagonal knob, and the other set of screws rotates through the belt between the two sets of screws to rotate the pulley. The two sets of screws push the sliding seat slidably connected on the sliding frame. Since the worm is sleeved on the rotating tube, the rotating tube is arranged between the two sets of sliding seats, thereby realizing the adjustment of the gap between the worm and the worm wheel. By adjusting the gap between the worm wheel and the worm, it is avoided that the gap between the worm and the worm wheel increases after the worm wheel is worn, thereby reducing the service life and working efficiency of the rotary reducer.
[0012] 2. By arranging a cooling pipe inside the rotating tube, and forming a cooling circuit through the water inlet pipe and the water outlet pipe, the heat generated by the rotation of the worm is taken away by water, and by arranging a plurality of groups of cooling fins around the outer surface of the base, the heat generated by the worm gear when working is taken away faster, thereby improving the heat dissipation performance of the rotary reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the front view structure of the main body of the utility model;
[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the main body of the utility model viewed from above;
[0015] Figure 3 This is a schematic diagram of the structure of the driving component and the adjusting component of the utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the sliding frame of the utility model;
[0017] Figure 5 It is a schematic diagram of the sliding seat structure of the utility model.
[0018] In the figure: 1. base; 2. worm gear; 3. slewing bearing; 4. worm placement seat; 5. observation cover; 6. motor; 7. cooling fins; 8. cover plate; 9. water inlet pipe; 10. worm; 11. belt; 12. hexagonal knob; 13. screw; 14. rotating pipe; 15. water outlet pipe; 16. sliding frame; 17. connecting plate; 18. spline sleeve; 19. spline shaft; 20. rotating rod; 21. first bevel gear; 22. second bevel gear; 23. pulley; 24. sliding seat; 25. limit groove; 26. limit strip; 27. cooling pipe; 28. sliding hole; 29. slider. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-5The utility model provides a technical solution: a clearance-adjustable rotary reducer, comprising a base 1, a worm placement seat 4 is arranged on the rear side of the base 1, the base 1 is fixedly connected to the worm placement seat 4, a rotary bearing 3 is installed on the inner bottom side of the base 1, a worm wheel 2 is rotatably sleeved on the rotary bearing 3, an observation cover 5 is arranged on the top side of the worm placement seat 4, and sliding frames 16 are fixedly installed on the left and right sides of the inside of the worm placement seat 4, the inner walls of the two groups of sliding frames 16 are slidably connected with sliding seats 24, a rotating tube 14 is rotatably penetrated between the two groups of sliding seats 24, a worm 10 is fixedly sleeved on the rotating tube 14, the worm 10 is meshed with the worm wheel 2, a driving component for driving the worm 10 to rotate is installed on the worm placement seat 4, and an adjusting component for adjusting the clearance between the worm wheel 2 and the worm 10 is also installed on the worm placement seat 4.
[0021] When the rotary reducer is in use, the worm 10 is driven to rotate by the driving component. Since the worm 10 is meshed with the worm wheel 2, the worm wheel 2 is rotated and sleeved on the slewing bearing 3, thereby rotating the worm wheel 2 and outputting low-speed and high-torque. When the rotary reducer is used for too long, the long-term wear between the worm 10 and the worm wheel 2 causes the gap between the worm 10 and the worm wheel 2 to increase. Since the gap increases, the service life and working efficiency of the rotary reducer are reduced, and noise is generated. Therefore, the gap between the worm wheel 2 and the worm 10 is adjusted by the adjusting component, and the meshing condition is observed by opening the observation cover 5 when adjusting the gap between the worm wheel 2 and the worm 10.
[0022] The driving assembly includes an electric motor 6, which is fixedly mounted on the rear side of the worm gear placement seat 4. The output shaft end of the electric motor 6 passes through the inner wall of the worm gear placement seat 4 and is fixedly connected to a spline sleeve 18. A spline shaft 19 is inserted into the spline sleeve 18. The front side of the spline shaft 19 is fixedly connected to a rotating rod 20. The right side of one group of sliding seats 24 is fixedly connected to a connecting plate 17. The rotating rod 20 is rotatably inserted into the connecting plate 17. The front end of the rotating rod 20 is fixedly connected to a first bevel gear 21. The right side of the rotating tube 14 is fixedly sleeved with a second bevel gear 22, and the second bevel gear 22 is meshed with the first bevel gear 21.
[0023] When the driving assembly is in use, the spline sleeve 18 is driven to rotate by the motor 6. Since the spline sleeve 18 is spline-connected to the spline shaft 19, the spline shaft 19 is driven to rotate, thereby rotating the rotating rod 20. Since the first bevel gear 21 on the rotating rod 20 is meshed with the second bevel gear 22 on the rotating tube 14, the rotating tube 14 is rotated, thereby driving the worm 10 to rotate.
[0024] The adjustment component includes a screw rod 13, and two groups of screw rods 13 are provided. The two groups of screw rods 13 are rotatably installed on the front sides of the inner walls of the two groups of sliding frames 16, and the two groups of sliding seats 24 are respectively threadedly sleeved on the two groups of screw rods 13. The rear ends of the two groups of screw rods 13 pass through the sliding frame 16 and the worm placement seat 4 and are fixedly connected with pulleys 23. A belt 11 is tensioned and sleeved between the two groups of pulleys 23, and a hexagonal knob 12 is fixedly connected to the rear side of one group of pulleys 23.
[0025] The upper and lower sides of the sliding seat 24 are fixedly connected to limit bars 26 . The upper and lower sides of the inner wall of the sliding frame 16 are provided with limit slots 25 . The limit bars 26 are slidably connected to the limit slots 25 .
[0026] When the adjustment component is in use, a certain group of screw rods 13 is rotated by turning the hexagonal knob 12. Since the pulleys 23 fixedly sleeved on the two groups of screw rods 13 are tensioned and sleeved by the belt 11, the two groups of screw rods 13 are driven to rotate at the same time, so that the sliding seats 24 threadedly sleeved on the two groups of screw rods 13 slide on the sliding frame 16, and the upper and lower side limit strips 26 of the sliding seat 24 are slidably connected to the upper and lower side limit grooves 25 of the sliding frame 16 to prevent the sliding seat 24 from shifting during the sliding process. Since the rotating tube 14 is rotatably penetrated on the two groups of sliding seats 24, the worm 10 sleeved on the rotating tube 14 is close to the worm wheel 2, so that the gap between the worm wheel 2 and the worm 10 is adjusted.
[0027] Slide holes 28 are provided on the left and right sides of the worm placement seat 4, and sliders 29 are slidably connected to the two groups of slide holes 28. The two groups of sliders 29 are respectively penetrated by a water inlet pipe 9 and a water outlet pipe 15. The sides of the water inlet pipe 9 and the water outlet pipe 15 away from the worm placement seat 4 are fixedly sleeved with a cover plate 8. A cooling pipe 27 is rotatably penetrated inside the rotating tube 14. The two ends of the cooling pipe 27 are respectively fixedly connected to the water inlet pipe 9 and the water outlet pipe 15. Water enters the cooling pipe 27 from the water inlet pipe 9 and flows out from the water outlet pipe 15. Since the water inlet pipe 9 and the water outlet pipe 15 are slidably connected to the two sides of the worm placement seat 4 through the sliders 29, it is avoided that the cooling pipe 27 cannot move, resulting in the inability to adjust the gap between the worm wheel 2 and the worm 10. Finally, the heat generated by the worm 10 is taken away through the cooling pipe 27.
[0028] A plurality of groups of heat dissipation fins 7 are disposed around the outer surface of the base 1 so as to take away the heat generated by the worm gear 2 .
[0029] Working principle: When the rotary reducer is used, the spline sleeve 18 is driven to rotate by the motor 6. Since the spline sleeve 18 is spline-connected with the spline shaft 19, the spline shaft 19 is driven to rotate, and then the rotating rod 20 is rotated. Since the first bevel gear 21 on the rotating rod 20 is meshed with the second bevel gear 22 on the rotating tube 14, the rotating tube 14 is rotated, thereby driving the worm 10 to rotate. Since the worm 10 is meshed with the worm wheel 2, the worm wheel 2 is rotated and sleeved on the slewing bearing 3, thereby rotating the worm wheel 2 and outputting low-speed and high-torque. When the rotary reducer is used for too long, the gap between the worm 10 and the worm wheel 2 becomes larger due to the long-term wear between the worm 10 and the worm wheel 2. As the gap becomes larger, the service life and working efficiency of the rotary reducer are reduced. , and noise will be generated, so a certain set of screws 13 is rotated by rotating the hexagonal knob 12. Since the pulleys 23 fixedly sleeved on the two sets of screws 13 are sleeved by the belt 11, the two sets of screws 13 are driven to rotate at the same time, so that the sliding seats 24 threadedly sleeved on the two sets of screws 13 slide on the sliding frame 16, and the upper and lower side limit strips 26 of the sliding seat 24 are slidably connected to the upper and lower side limit grooves 25 of the sliding frame 16 to avoid the sliding seat 24 from shifting during the sliding process. Since the rotating tube 14 is rotatably penetrated on the two sets of sliding seats 24, the worm 10 sleeved on the rotating tube 14 is close to the worm wheel 2, so that the gap between the worm wheel 2 and the worm 10 is adjusted. When adjusting the gap between the worm wheel 2 and the worm 10, the meshing condition is observed by opening the observation cover 5.
Claims
1. A clearance-adjustable rotary reducer, comprising a base (1), characterized in that: A worm placement seat (4) is arranged at the rear side of the base (1), the base (1) is fixedly connected to the worm placement seat (4), a slewing bearing (3) is installed at the bottom side of the base (1), a worm wheel (2) is rotatably sleeved on the slewing bearing (3), an observation cover (5) is arranged at the top side of the worm placement seat (4), and sliding frames (16) are fixedly installed at the left and right sides of the inside of the worm placement seat (4), and two sets of sliding frames (16) are arranged at the top side of the worm placement seat (4). The inner walls of the two sliding seats (24) are slidably connected, a rotating tube (14) is rotatably inserted between the two groups of sliding seats (24), a worm (10) is fixedly sleeved on the rotating tube (14), the worm (10) is meshed with the worm wheel (2), a driving component for driving the worm (10) to rotate is installed on the worm placement seat (4), and an adjusting component for adjusting the gap between the worm wheel (2) and the worm (10) is also installed on the worm placement seat (4).
2. A clearance-adjustable rotary reducer according to claim 1, characterized in that: The driving assembly comprises a motor (6), wherein the motor (6) is fixedly mounted on the rear side of a worm gear placement seat (4), an output shaft end of the motor (6) passes through the inner wall of the worm gear placement seat (4) and is fixedly connected to a spline sleeve (18), a spline shaft (19) is inserted into the spline sleeve (18), and a rotating rod (20) is fixedly connected to the front side of the spline shaft (19), wherein a right side of one group of the sliding seats (24) is fixedly connected to a connecting plate (17), the rotating rod (20) is rotatably inserted into the connecting plate (17), a front end of the rotating rod (20) is fixedly connected to a first bevel gear (21), and a second bevel gear (22) is fixedly sleeved on the right side of the rotating tube (14), and the second bevel gear (22) is meshed with the first bevel gear (21).
3. A clearance-adjustable rotary reducer according to claim 2, characterized in that: The adjusting assembly comprises a screw rod (13), wherein the screw rod (13) is provided with two groups, the two groups of screw rods (13) are respectively rotatably mounted on the front sides of the inner walls of the two groups of sliding frames (16), and the two groups of sliding seats (24) are respectively threadedly sleeved on the two groups of screw rods (13), the rear ends of the two groups of screw rods (13) penetrate the sliding frame (16) and the worm placement seat (4) and are both fixedly connected with pulleys (23), a belt (11) is tensionedly sleeved between the two groups of pulleys (23), and the rear side of one group of pulleys (23) is fixedly connected with a hexagonal knob (12).
4. The clearance-adjustable rotary reducer according to claim 3, characterized in that: The upper and lower sides of the sliding seat (24) are fixedly connected to limit strips (26), and the upper and lower sides of the inner wall of the sliding frame (16) are provided with limit grooves (25), and the limit strips (26) are slidably connected to the limit grooves (25).
5. The clearance-adjustable rotary reducer according to claim 4, characterized in that: The left and right sides of the worm placement seat (4) are provided with sliding holes (28), and two groups of the sliding holes (28) are slidably connected with sliding blocks (29). The two groups of the sliding blocks (29) are respectively penetrated with a water inlet pipe (9) and a water outlet pipe (15). The sides of the water inlet pipe (9) and the water outlet pipe (15) away from the worm placement seat (4) are fixedly sleeved with a cover plate (8). A cooling pipe (27) is rotatably penetrated inside the rotating tube (14), and the two ends of the cooling pipe (27) are respectively fixedly connected with the water inlet pipe (9) and the water outlet pipe (15).
6. The clearance-adjustable rotary reducer according to claim 5, characterized in that: The outer surface of the base (1) is surrounded by a plurality of groups of heat dissipation fins (7).