Asymmetric tooth profile reduction gear heavy-duty gear

By designing heavy-duty gears in an asymmetric toothed reducer, the problem of low maintenance efficiency in traditional gearboxes is solved, enabling rapid disassembly and assembly, precise alignment, and efficient transmission, thereby improving the service life and protection capabilities of the equipment.

CN224414305UActive Publication Date: 2026-06-26CHANGZHOU YONGXING MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU YONGXING MASCH CO LTD
Filing Date
2025-09-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The traditional one-piece end cover structure of gearboxes leads to low maintenance efficiency and complicated connection steps, affecting the ease of installation and the efficiency of equipment use.

Method used

It adopts an asymmetric toothed reducer heavy-duty gear design, and forms a stable support system with the rotating groove, housing and top cover. Combined with the sliding linkage mechanism of the mounting block and fixing rod, it can achieve quick disassembly and precise alignment. The side cover distribution design enhances the protection level and prevents impurities from entering.

Benefits of technology

It enables quick assembly and disassembly and precise alignment, reduces operating noise, extends service life, improves transmission efficiency, enhances the protection level of the equipment, and facilitates daily maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides asymmetric tooth shape speed reducer heavy -duty gear relates to gear technical field, including the shell, the bottom fixed mounting of shell has the mounting panel, the top fixed mounting of shell has the connecting plate A, the top of shell is provided with the top cover, the bottom fixed mounting of top cover has the connecting plate B, the side of top cover is provided with the side cover, the inside of shell is provided with the pivot A, the pivot B and the pivot C, the left side fixed mounting of pivot A has the fixed link A, realizes quick assembly and disassembly and accurate alignment, and the stable support system is formed to pivot subassembly through the rotation groove and the shell and the top cover, and the transmission efficiency is optimized in combination with the configuration optimization of different gear group, and the sliding slot linkage mechanism cooperation screw adjusting device between the mounting block and the fixed link makes the gear meshing gap movable dynamic calibration, effectively reduces the operation noise and prolongs the life, and the application of the distribution design of side cover and double fixed groove enhances the protection level, prevents the invasion of impurity while being convenient for daily overhaul.
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Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to heavy-duty gears for asymmetric toothed reducers. Background Technology

[0002] A gearbox reducer is an independent component consisting of gear transmission, worm transmission, or gear and worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine, and plays a role in matching speed and transmitting torque between the prime mover and the working machine or actuator. It is widely used in modern machinery.

[0003] In the prior art, such as the heavy-duty industrial gearbox reducer disclosed in Chinese Publication No. CN222208903U, a main body is included. The bottom of the main body is provided with an adaptive mounting mechanism, which includes a mounting base plate, a T-shaped sliding block, and a limiting bolt. The upper surface of the mounting base plate is fixedly connected to the upper surface of the main body, and a rectangular groove is formed inside the mounting base plate. This heavy-duty industrial gearbox reducer, by utilizing the rectangular groove inside the mounting base plate, allows the T-shaped sliding block to slide to a certain installation position within the groove. Then, the limiting bolt is installed on the internal thread of the T-shaped sliding block to limit its position after movement. This effectively solves the problem of how to install according to actual conditions, achieving a more convenient installation effect and improving the actual installation efficiency, thus facilitating efficient use in practice.

[0004] The above-mentioned technology has achieved the effect of allowing multiple people to use it simultaneously, but there are still some shortcomings, specifically:

[0005] Traditional gearboxes often use an integral end cover structure, which requires complete disassembly for internal component maintenance. This results in low maintenance efficiency and can easily damage the original assembly precision. Traditional connections are mostly fixed to the input and output ends with bolts, which takes a lot of time during installation. As for the connection steps, they cause inefficiency. Utility Model Content

[0006] The asymmetric toothed reducer heavy-duty gear proposed in this utility model enables quick disassembly and precise alignment. The rotating shaft assembly forms a stable support system with the housing and top cover through the rotating groove. The transmission efficiency is optimized by combining different gear sets. The sliding groove linkage mechanism between the mounting block and the fixing rod, together with the threaded adjustment device, allows the gear meshing clearance to be dynamically calibrated, effectively reducing operating noise and extending service life. The side cover distribution design and the application of double fixing grooves enhance the protection level, preventing impurities from entering while facilitating daily maintenance, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an asymmetric toothed reducer heavy-duty gear, comprising a housing, an mounting plate fixedly installed at the bottom of the housing, a connecting plate A fixedly installed at the top of the housing, a top cover provided at the top of the housing, a connecting plate B fixedly installed at the bottom of the top cover, a side cover provided on the side of the top cover, and a rotating shaft A, a rotating shaft B, and a rotating shaft C provided inside the housing, a fixing rod A fixedly installed on the left side of the rotating shaft A, a fixing rod B fixedly installed on the right side of the rotating shaft C, a mounting block provided on the surface of the fixing rod B, and a fixing plate fixedly installed on the right side of the mounting block.

[0008] Preferably, the top of the mounting plate is provided with a mounting groove, the connecting plate A and the connecting plate B are slidably connected, the connecting plate A and the connecting plate B are fixed by a fixing bolt A, and the fixing bolt A is rotatably connected to the outer shell through the fixing groove A.

[0009] Preferably, the side covers are evenly distributed on the left and right ends of the outer shell and the top cover. The side covers are fixed to the sides of the outer shell and the top cover by fixing bolts B, and the fixing bolts B are rotatably connected to the side covers through fixing grooves B.

[0010] Preferably, the rotating shafts A, B, and C are rotatably connected to the outer casing via rotating groove A, and the rotating shafts A, B, and C are rotatably connected to the top cover via rotating groove B. A rotating rod A is fixedly mounted on the surface of rotating shaft A, and a gear A is fixedly mounted on the surface of rotating rod A. A rotating rod B is fixedly mounted on the surface of rotating shaft B, and gears B and C are fixedly mounted on the surface of rotating rod B. A rotating rod C is fixedly mounted on the surface of rotating shaft C, and a gear D is fixedly mounted on the surface of rotating rod C.

[0011] Preferably, the mounting block is slidably connected to the fixing rod B via a sliding groove, the fixing plate has a connecting groove on its side, a protrusion is fixedly mounted on the surface of the mounting block, a threaded rod is provided inside the protrusion, the threaded rod is rotatably connected to the protrusion via a through groove, the threaded rod is rotatably connected to the fixing rod B via a threaded groove, and a throttle handle is fixedly mounted on the surface of the threaded rod.

[0012] Preferably, the mounting plate has a slot inside, a pad inside the slot, a plate fixedly installed on the back of the pad, and a cover fixedly installed on the top of the plate.

[0013] Preferably, the pad is slidably connected to the mounting plate, the plate is slidably connected to the mounting plate, and the plates are evenly distributed at the bottom of the cover.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, the fixed rod B, threaded groove, mounting block, sliding groove, fixing plate, connecting groove, protrusion, through groove, threaded rod and throttle handle enable quick disassembly and precise alignment. The rotating shaft assembly forms a stable support system with the housing and top cover through the rotating groove. The transmission efficiency is optimized by combining different gear sets. The sliding groove linkage mechanism between the mounting block and the fixed rod, together with the thread adjustment device, allows the gear meshing clearance to be dynamically calibrated, effectively reducing operating noise and extending service life. The side cover distribution design and the application of double fixing grooves enhance the protection level, preventing impurities from entering while facilitating daily maintenance.

[0016] 2. In this utility model, the card slot, card pad, card plate and cover effectively prevent external impurities from entering the critical moving part area. The cover covers the top of the card plate to form a closed barrier. This structure maintains the stability of the mechanical connection and simplifies the disassembly and assembly process during later maintenance. Attached Figure Description

[0017] Figure 1 A three-dimensional structural view of the heavy-duty gear of the asymmetric toothed reducer is provided for this utility model.

[0018] Figure 2 This invention provides an exploded perspective view of the housing structure of the heavy-duty gear of an asymmetric toothed reducer.

[0019] Figure 3 This utility model proposes an asymmetric tooth profile reducer for heavy-duty gears. Figure 2 Enlarged 3D view of the structure at point A in the middle;

[0020] Figure 4 An exploded perspective view of the top cover of the heavy-duty gear of the asymmetric toothed reducer is provided for this utility model.

[0021] Figure 5 This utility model provides an exploded perspective view of the gear structure of the heavy-duty gear in an asymmetric toothed reducer.

[0022] Figure 6 This utility model proposes an asymmetric tooth profile reducer for heavy-duty gears. Figure 5 Enlarged 3D view of the structure at point B.

[0023] Legend: 1. Outer shell; 2. Mounting plate; 3. Mounting groove; 4. Connecting plate A; 5. Rotary groove A; 6. Fixing groove A; 7. Top cover; 8. Connecting plate B; 9. Rotary groove B; 10. Fixing bolt A; 11. Fixing groove B; 12. Side cover; 13. Fixing bolt B; 14. Rotating shaft A; 15. Rotating rod A; 16. Gear A; 17. Fixing rod A; 18. Rotating shaft B; 19. Rotating rod B; 20. Gear B; 21. Gear C; 22. Rotating shaft C; 23. Rotating rod C; 24. Gear D; 25. Fixing rod B; 26. Threaded groove; 27. Mounting block; 28. Slide groove; 29. ​​Fixing plate; 30. Connecting groove; 31. Protrusion; 32. Through groove; 33. Threaded rod; 34. Turn handle; 35. Slot; 36. Slip pad; 37. Slip plate; 38. Protective cover. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figure 1 , Figure 2 , Figures 4-6As shown, this utility model provides a technical solution: an asymmetric toothed reducer heavy-duty gear, including a housing 1, a mounting plate 2 fixedly installed at the bottom end of the housing 1, a connecting plate A4 fixedly installed at the top end of the housing 1, a top cover 7 provided at the top end of the housing 1, a connecting plate B8 fixedly installed at the bottom end of the top cover 7, a side cover 12 provided on the side of the top cover 7, and a rotating shaft A14, a rotating shaft B18, and a rotating shaft C22 provided inside the housing 1. A fixing rod A17 is fixedly installed on the left side of the rotating shaft A14, and a fixing rod B25 is fixedly installed on the right side of the rotating shaft C22. The surface of the fixing rod B25 is provided with a mounting block 27. A fixing plate 29 is fixedly installed on the right side of the mounting block 27. The top of the mounting plate 29 has a mounting groove 3. The connecting plate A4 and the connecting plate B8 are slidably connected. The connecting plate A4 and the connecting plate B8 are fixed together by fixing bolts A10. The fixing bolts A10 are rotatably connected to the outer shell 1 through the fixing groove A6. The side covers 12 are evenly distributed on the left and right ends of the outer shell 1 and the top cover 7. The side covers 12 are fixed to the sides of the outer shell 1 and the top cover 7 by fixing bolts B13. 3. Rotary shafts A14, B18, and C22 are rotatably connected to the side cover 12 via a fixed groove B11. Rotary shafts A14, B18, and C22 are rotatably connected to the outer casing 1 via a rotating groove A5. Rotary shafts A14, B18, and C22 are rotatably connected to the top cover 7 via a rotating groove B9. A rotating rod A15 is fixedly mounted on the surface of rotating shaft A14, and a gear A16 is fixedly mounted on the surface of rotating rod A15. A rotating rod B19 is fixedly mounted on the surface of rotating shaft B18, and gears B20 and C21 are fixedly mounted on the surface of rotating rod B19. Rotary shaft C2... A rotating rod C23 is fixedly mounted on the surface of the mounting block 27. A gear D24 is fixedly mounted on the surface of the rotating rod C23. The mounting block 27 is slidably connected to the fixed rod B25 through a sliding groove 28. A connecting groove 30 is provided on the side of the fixed plate 29. A protrusion 31 is fixedly mounted on the surface of the mounting block 27. A threaded rod 33 is provided inside the protrusion 31. The threaded rod 33 is rotatably connected to the protrusion 31 through a through groove 32. The threaded rod 33 is rotatably connected to the fixed rod B25 through a threaded groove 26. A throttle 34 is fixedly mounted on the surface of the threaded rod 33.

[0027] In this embodiment, the design of the slidably connected connecting plate A4, connecting plate B8, and distributed side cover 12 significantly improves the maintainability and ease of assembly of the equipment. The unique three-axis linkage mechanism, combined with the differentiated gear set layout, effectively optimizes the power transmission path and improves the transmission efficiency under heavy-load conditions. The sliding groove 28-protrusion 31 adjustment mechanism set in the mounting block 27, combined with the fine-tuning function of the threaded rod 33, realizes precise control of the gear meshing clearance, ensuring the operational stability of the equipment under complex working conditions. The ventilation and heat dissipation channel formed by the split top cover 7 and the side cover 12, combined with the reinforced mounting plate 2 and the fixed rod structure, greatly enhances the impact resistance and heat dissipation performance of the equipment. Overall, it presents the technical advantages of compact structure, flexible adjustment, strong load-bearing capacity, and convenient maintenance, and is particularly suitable for heavy-load industrial scenarios.

[0028] Example 2: As Figures 1-3 As shown, the mounting plate 2 has a slot 35 inside, a pad 36 is provided inside the slot 35, a plate 37 is fixedly installed on the back of the pad 36, and a cover 38 is fixedly installed on the top of the plate 37. The pad 36 is slidably connected to the mounting plate 2, and the plate 37 is slidably connected to the mounting plate 2. The plates 37 are evenly distributed at the bottom of the cover 38.

[0029] In this embodiment, by setting a slot 35 with a retaining pad 36 and a sliding retaining plate 37 assembly in the mounting plate 2, the equipment can be quickly positioned and securely locked. The elastic buffer design of the retaining pad 36 effectively reduces vibration transmission. The sealed protection system formed by the sliding retaining plate 37 and the cover 38 not only ensures the dustproof and waterproof performance of key parts, but also facilitates quick disassembly and assembly during daily maintenance. The uniform distribution design of the retaining plate 37 along the bottom of the cover 38 makes the load distribution more reasonable, significantly improving the deformation resistance and long-term operational stability of the overall structure. Compared with the traditional bolt direct connection method, this structure has the advantages of adjustment flexibility, protection reliability and maintenance convenience, and is especially suitable for the installation needs of heavy-duty equipment under complex working conditions.

[0030] The working principle of this embodiment is as follows: First, place the outer casing 1 in the desired position and secure it firmly to the mounting plate 2 via the mounting groove 3. Then, pinch the cover 38 to align the clamping plate 37 with the mounting groove 3 and press it downwards. This causes the clamping plate 37 to slide the clamping pad 36 downwards through the mounting groove 3 at the top of the mounting plate 2. Once the clamping pad 36 slides into the interior of the mounting plate 2 through the clamping groove 35, it is secure, thus protecting the bolts. Then, the device is fixed to the input end via the fixing rod A17. Finally, place the fixing plate 29 on the output end where the device needs to be connected. Prepare the mounting block and fix it through the connecting groove 30. Then, align the mounting block 27 with the fixing rod B25 and push it to the left, so that the mounting block 27 slides to the left side of the fixing rod B25 through the sliding groove 28. When the mounting block 27 has completely slid into the surface of the fixing rod B25 through the sliding groove 28, pinch the handle 34 to pass the threaded rod 33 through the through groove 32 through the protrusion 31 and align it with the threaded groove 26. Then, rotate the handle 34 to make the threaded rod 33 rotate into the fixing rod B25 through the threaded groove 26. When the handle 34 is in contact with the protrusion 31, push it to the left side, so that the threaded rod 33 passes through the threaded groove 26. After the surface of protrusion 31 is reached, the device at the input end causes the rotating shaft A14 to rotate through the rotating grooves A5 and B9 inside the outer casing 1 and the top cover 7. Simultaneously, the rotating rod A15 drives the gear A16 to rotate. The gear A16 then drives the rotating rod B19 and gear C21 to rotate together through gear B20. The rotating shaft B18 also rotates through the rotating grooves A5 and B9 inside the outer casing 1 and the top cover 7. At the same time, gear C21 drives the rotating rod C23 and rotating shaft C22 to rotate together through gear D24. Shaft C22 rotates inside the outer casing 1 and top cover 7 via rotating grooves A5 and B9. At this time, the gears of different sizes can achieve the effect of speed reduction. After long-term use, when disassembly and maintenance are required, first remove the fixing bolt B13 from the inside of the outer casing 1 and top cover 7 through the fixing groove B11, and remove the side cover 12. Then remove the fixing bolt A10 from the inside of the outer casing 1 through the fixing groove A6, and then remove the top cover 7 from the top of the outer casing 1 to allow the connecting plate A4 and connecting plate B8 to detach and maintain the internal gears.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. Asymmetric tooth profile reducer heavy-duty gear comprising a housing (1), characterized in that: The bottom end of the outer shell (1) is fixedly installed with an mounting plate (2), the top end of the outer shell (1) is fixedly installed with a connecting plate A (4), the top end of the outer shell (1) is provided with a top cover (7), the bottom end of the top cover (7) is fixedly installed with a connecting plate B (8), the side of the top cover (7) is provided with a side cover (12), the inside of the outer shell (1) is provided with a rotating shaft A (14), a rotating shaft B (18) and a rotating shaft C (22), the left side of the rotating shaft A (14) is fixedly installed with a fixing rod A (17), the right side of the rotating shaft C (22) is fixedly installed with a fixing rod B (25), the surface of the fixing rod B (25) is provided with a mounting block (27), and the right side of the mounting block (27) is fixedly installed with a fixing plate (29).

2. The heavy-duty gear of the asymmetric toothed reducer according to claim 1, characterized in that: The top of the mounting plate (2) is provided with a mounting groove (3). The connecting plate A (4) and the connecting plate B (8) are slidably connected. The connecting plate A (4) and the connecting plate B (8) are fixed by a fixing bolt A (10). The fixing bolt A (10) is rotatably connected to the outer shell (1) through the fixing groove A (6).

3. The heavy-duty gear of the asymmetric toothed reducer according to claim 1, characterized in that: The side covers (12) are evenly distributed on the left and right ends of the outer shell (1) and the top cover (7). The side covers (12) are fixed to the sides of the outer shell (1) and the top cover (7) by fixing bolts B (13). The fixing bolts B (13) are rotatably connected to the side covers (12) through fixing grooves B (11).

4. The heavy-duty gear of the asymmetric toothed reducer according to claim 1, characterized in that: The rotating shaft A (14), rotating shaft B (18), and rotating shaft C (22) are rotatably connected to the outer shell (1) through the rotating groove A (5). The rotating shaft A (14), rotating shaft B (18), and rotating shaft C (22) are rotatably connected to the top cover (7) through the rotating groove B (9). A rotating rod A (15) is fixedly installed on the surface of the rotating shaft A (14). A gear A (16) is fixedly installed on the surface of the rotating rod A (15). A rotating rod B (19) is fixedly installed on the surface of the rotating shaft B (18). A gear B (20) and a gear C (21) are fixedly installed on the surface of the rotating rod B (19). A rotating rod C (23) is fixedly installed on the surface of the rotating shaft C (22). A gear D (24) is fixedly installed on the surface of the rotating rod C (23).

5. The heavy-duty gear of the asymmetric toothed reducer according to claim 1, characterized in that: The mounting block (27) is slidably connected to the fixing rod B (25) through the sliding groove (28). The side of the fixing plate (29) is provided with a connecting groove (30). A protrusion (31) is fixedly installed on the surface of the mounting block (27). A threaded rod (33) is provided inside the protrusion (31). The threaded rod (33) is rotatably connected to the protrusion (31) through the through groove (32). The threaded rod (33) is rotatably connected to the fixing rod B (25) through the threaded groove (26). A throttle (34) is fixedly installed on the surface of the threaded rod (33).

6. The heavy-duty gear of the asymmetric toothed reducer according to claim 1, characterized in that: The mounting plate (2) has a slot (35) inside, a pad (36) is provided inside the slot (35), a plate (37) is fixedly installed on the back of the pad (36), and a cover (38) is fixedly installed on the top of the plate (37).

7. The heavy-duty gear of the asymmetric toothed reducer according to claim 6, characterized in that: The pad (36) is slidably connected to the mounting plate (2), the plate (37) is slidably connected to the mounting plate (2), and the plate (37) is evenly distributed at the bottom of the cover (38).