A kind of assembly hole aperture adjustable speed reducer
By setting an adjustable mounting hole structure on the reducer, the problem of fixed mounting hole diameter in existing reducers is solved, enabling rapid adaptation and stable assembly, and improving assembly efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANLIAN TRANSMISSION MACHINERY CO LTD
- Filing Date
- 2025-10-25
- Publication Date
- 2026-07-21
AI Technical Summary
The existing speed reducer has a fixed mounting hole diameter, which cannot be adapted to the mounting hole diameter on the equipment, affecting assembly efficiency and stability.
A speed reducer with adjustable assembly hole diameter was designed. By setting up components such as positioning grooves, assembly cylinders, reinforcing columns, anti-slip brackets and auxiliary springs on the mounting frame, the speed reducer can achieve rapid positioning and self-locking of the assembly hole and adapt to assembly holes of different diameters.
This improves the assembly adaptability and stability of the reducer, avoids assembly difficulties and micro-movements during use caused by bore diameter errors, and enhances assembly speed and safety.
Smart Images

Figure CN224533411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducer technology, and in particular to a speed reducer with adjustable assembly hole diameter. Background Technology
[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a working machine, matching speeds and transmitting torque between the prime mover and the working machine or actuator. It is widely used in modern machinery. However, in practical use, we have found that existing speed reducers have mounting holes directly drilled into the bottom frame during assembly. This results in fixed hole diameters, making it impossible to adjust and replace the mounting holes on the bottom frame according to the size of the mounting holes on the equipment. This directly affects the normal assembly and use of the speed reducer, reducing its adaptability and assembly efficiency. Furthermore, differences in hole diameter can easily cause slight displacement of the speed reducer during use.
[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention
[0004] This invention proposes a speed reducer with adjustable assembly hole diameter, which solves the above-mentioned problems existing in the use of the prior art.
[0005] The technical solution of this utility model is implemented as follows: A speed reducer with adjustable assembly hole diameter includes a speed reducer body and a mounting frame fixed to the bottom of the speed reducer body. Positioning grooves are provided on both sides of the top front and back of the mounting frame. A through hole communicating with the positioning groove is provided at the bottom of the mounting frame. An assembly cylinder is engaged in each of the positioning grooves. An assembly hole is provided on each of the assembly cylinders. Multiple sets of strip grooves adapted to the positioning grooves are provided on the mounting frame. The strip grooves and positioning grooves are provided with... The auxiliary fixing component is used in conjunction with the assembly cylinder and the assembly hole. The auxiliary fixing component includes reinforcing columns that are uniformly fixed around the inner wall of the positioning groove. Multiple sets of L-shaped grooves for inserting the reinforcing columns are uniformly opened on the surface of each set of assembly cylinders. An anti-slip auxiliary frame is rotatably installed in each set of strip grooves. An auxiliary spring is fixed between the bottom of the inner cavity of each set of strip grooves and the anti-slip auxiliary frame. A groove is opened on each set of assembly cylinders for the top horizontal plate of the anti-slip auxiliary frame to be engaged. An anti-slip groove is opened in the groove for inserting one end of the anti-slip auxiliary frame.
[0006] The present invention provides a speed reducer with adjustable assembly hole diameter as described above, further comprising: a side block is snapped into the inner side of the inner cavity of each set of strip grooves; the side of two adjacent sets of side blocks that are far apart from each other is attached to the side of two adjacent sets of anti-slip brackets that are close to each other; and there is a height difference between the top of each set of side blocks and the top of the mounting frame.
[0007] The present invention provides a speed reducer with adjustable assembly hole diameter as described above, further comprising: a rubber elastic block embedded in the inner side of the inner cavity of the strip groove, which is attached to the side of two adjacent sets of side blocks that are close to each other.
[0008] The present invention provides a speed reducer with adjustable assembly hole diameter as described above, further comprising: each set of anti-slip auxiliary frames having a cover plate fixed on the front and back to cover the strip groove and one end attached to the side block.
[0009] The present invention provides a speed reducer with adjustable assembly hole diameter as described above, further comprising: one end of the anti-slip auxiliary bracket inserted into the anti-slip groove having an arc-shaped structure, and the anti-slip groove having an arc-shaped structure.
[0010] The present invention provides a speed reducer with adjustable assembly hole diameter as described above, further comprising: a push plate fixed to the top of the front and back sides of each assembly cylinder, the bottom of the push plate being attached to the mounting frame.
[0011] The present invention provides a speed reducer with adjustable assembly hole diameter as described above, further comprising: the top of the anti-slip auxiliary frame and the top of the assembly cylinder being on the same horizontal plane.
[0012] In summary, the beneficial effects of this utility model are as follows: 1. This utility model adopts a structural design with switchable assembly hole diameters, which can assist the assembly cylinder in quick positioning and self-locking, and can also quickly remove the assembly cylinder from the positioning groove. This allows for quick adaptation and connection of the assembly holes on the mounting frame according to the diameter of the assembly holes on the equipment, which improves the assembly adaptability of the reducer body. It can effectively avoid the inability to quickly assemble the reducer body due to assembly hole diameter errors, thus increasing the assembly speed of the reducer body. It can also avoid the slight displacement of the reducer body during use due to the difference in assembly hole diameter, thereby improving the stability and safety of the reducer body during use.
[0013] 2. This utility model improves the assembly stability of the assembly cylinder by setting side blocks to limit the position of the anti-slip auxiliary frame and prevent the anti-slip auxiliary frame from easily detaching from the anti-slip groove. At the same time, the height difference design makes it easy for users to quickly pull the side blocks out of the strip groove.
[0014] 3. This utility model uses a rubber elastic block to continuously provide a pushing force to the side block using its own elasticity, thereby improving the locking stability between the side block and the anti-slip bracket and preventing easy detachment.
[0015] 4. This utility model, by setting a cover plate and cooperating with side blocks, can completely enclose the strip groove, preventing foreign objects from easily entering the strip groove and affecting the normal operation of its internal structure, and avoiding damage to the auxiliary spring.
[0016] 5. This utility model provides an anti-slip auxiliary frame with an arc-shaped structure at one end and an anti-slip groove with an arc-shaped structure, so that the anti-slip auxiliary frame can be stably inserted into the anti-slip groove when flipped, avoiding obstruction.
[0017] 6. This utility model, by setting a push plate, facilitates the user to move the assembly cylinder quickly, making it easy to install and remove the assembly cylinder quickly.
[0018] 7. This utility model, through its design of being on the same horizontal plane, avoids affecting the normal assembly of the nut and the bolt through the assembly hole. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial bottom sectional view of the structure of this utility model; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a partial exploded view of the overall structure of this utility model; Figure 5 This is a perspective view of the overall structure of the mounting frame of this utility model; Figure 6 This is a three-dimensional view of the overall structure of the assembly cylinder of this utility model.
[0021] In the diagram: 1. Reducer body, 2. Mounting frame, 3. Positioning groove, 4. Through hole, 5. Assembly cylinder, 6. Assembly hole, 7. Push plate, 8. L-shaped groove, 9. Reinforcing column, 10. Strip groove, 11. Anti-slip bracket, 12. Auxiliary spring, 13. Cover plate, 14. Side block, 15. Rubber elastic block, 16. Groove, 17. Anti-slip groove. Detailed Implementation
[0022] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example
[0023] A speed reducer with adjustable mounting hole diameter includes a speed reducer body 1 and a mounting frame 2 fixed to the bottom of the speed reducer body 1. Positioning grooves 3 are provided on both sides of the top front and back of the mounting frame 2. Through holes 4 communicating with the positioning grooves 3 are provided on the bottom of the mounting frame 2. An assembly cylinder 5 is engaged within each positioning groove 3, and each assembly cylinder 5 has an assembly hole 6. The mounting frame 2 has multiple sets of strip grooves 10 adapted to the positioning grooves 3. The strip grooves 10 and positioning grooves 3 are provided with fittings that cooperate with the assembly cylinders 5 and the assembly holes 6. The auxiliary fixing components include reinforcing columns 9 evenly fixed around the inner wall of the positioning groove 3. Each set of assembly cylinders 5 has multiple sets of L-shaped grooves 8 evenly opened on its surface for inserting the reinforcing columns 9. Each set of strip grooves 10 is rotatably equipped with an anti-slip auxiliary frame 11. An auxiliary spring 12 is fixed between the bottom of the inner cavity of each set of strip grooves 10 and the anti-slip auxiliary frame 11. Each set of assembly cylinders 5 has a groove 16 for engaging the top horizontal plate of the anti-slip auxiliary frame 11. An anti-slip groove 17 is opened in the groove 16 for inserting one end of the anti-slip auxiliary frame 11.
[0024] Specifically, this utility model, by setting an auxiliary fixing component, utilizes the snap-fit between the reinforcing column 9 and the L-shaped groove 8, and in conjunction with the locking structure formed by the auxiliary spring 12, the anti-slip bracket 11, the groove 16, and the anti-slip slot 17, to assist the assembly cylinder 5 in quick positioning and self-locking. It also allows the assembly cylinder 5 to be quickly removed from the positioning groove 3, enabling rapid adaptation and replacement of the assembly holes 6 on the mounting frame 2 according to their diameter on the mounting surface. This improves the assembly adaptability of the reducer body 1, effectively preventing the reducer body 1 from being unable to be quickly assembled due to errors in the diameter of the assembly holes 6, thus increasing the assembly speed of the reducer body 1. Furthermore, it avoids the reducer body 1 from easily shifting slightly during use due to differences in the diameter of the assembly holes 6, improving the stability and safety of the reducer body 1 during use.
[0025] The specific usage process is as follows: When aligning the reducer body 1 with the mounting surface, the user pre-selects the appropriate mounting cylinder 5 according to the size of the mounting hole 6 on the mounting surface. There are multiple sets of mounting cylinders 5, and the inner diameter of the mounting hole 6 on each set of mounting cylinders 5 is different. Therefore, mounting cylinders 5 with different inner diameters can be flexibly selected according to the user's actual usage needs, thereby meeting more usage requirements. At this time, the user pre-flips the anti-slip bracket 11 upwards, thereby stretching the auxiliary spring 12. Then, the user inserts the appropriate mounting cylinder 5 into the corresponding positioning groove 3. At this time, the reinforcing column 9 will pre-engage with the vertical section of the L-shaped groove 8 on the mounting cylinder 5 until the bottom of the mounting cylinder 5 contacts the bottom of the inner cavity of the positioning groove 3. At this time, the user rotates... Assemble the cylinder 5 so that the reinforcing column 9 can be engaged with the transverse section of the L-shaped groove 8 until the side wall of the transverse section of the L-shaped groove 8 is in contact. At this time, the elastic rebound of the auxiliary spring 12 can quickly engage the anti-slip bracket 11 in the groove 16, and the arc-shaped section of the anti-slip bracket 11 will engage in the anti-slip groove 17, quickly positioning the assembly cylinder 5 and preventing it from rotating. This allows for quick positioning of the assembly cylinder 5 and its assembly hole 6. Then, the user inserts the side block 14 between the side wall of the strip groove 10 and the anti-slip bracket 11 to limit the anti-slip bracket 11. At this time, the user can use the matching assembly hole 6 to quickly fix the reducer body 1 to the equipment or the ground, thereby quickly completing the assembly of the reducer and improving the assembly efficiency of the reducer. This utility model, by setting an auxiliary fixing component, utilizes the snap-fit between the reinforcing column 9 and the L-shaped groove 8, and in conjunction with the locking structure formed by the auxiliary spring 12, the anti-slip bracket 11, the groove 16, and the anti-slip slot 17, to assist in the rapid positioning and self-locking of the assembly cylinder 5. It also allows for the rapid removal of the assembly cylinder 5 from the positioning groove 3, enabling quick adjustment and replacement of the assembly holes 6 on the mounting frame 2 according to their diameter on the mounting surface. This improves the assembly adaptability of the reducer body 1 and effectively avoids situations where the reducer body 1 cannot be quickly assembled due to errors in the diameter of the assembly holes 6. It increases the assembly speed of the reducer body 1 and prevents slight displacement of the reducer body 1 during use due to differences in the diameter of the assembly holes 6, thus improving the overall performance of the reducer body. 1. Stability and safety during use; The design of the side block 14 can limit the position of the anti-slip bracket 11, preventing the anti-slip bracket 11 from easily detaching from the anti-slip groove 17, thereby improving the assembly stability of the assembly cylinder 5. At the same time, the height difference design makes it easy for the user to quickly pull the side block 14 out of the strip groove 10; The design of the rubber elastic block 15 utilizes the elasticity of the rubber elastic block 15 to continuously provide a pushing force to the side block 14, so as to improve the snap-fit stability between the side block 14 and the anti-slip bracket 11 and prevent them from easily detaching; The design of the cover plate 13, together with the side block 14, can completely close the strip groove 10, which can effectively prevent foreign objects from easily entering the strip groove 10, affecting the normal operation of its internal structure, and preventing damage to the auxiliary spring 12;The anti-slip bracket 11, with an arc-shaped structure at one end, and the anti-slip groove 17, with an arc-shaped structure, allow the anti-slip bracket 11 to be stably inserted into the anti-slip groove 17 when flipped, avoiding obstruction due to mutual interference. The design of the push plate 7 facilitates the user to quickly move the assembly cylinder 5, making it easy to install and remove the assembly cylinder 5 quickly, thus improving assembly efficiency. The design of being on the same horizontal plane effectively prevents the protruding anti-slip bracket 11 from directly affecting the normal assembly of the nut and the bolt passing through the assembly hole 6, avoiding mutual interference.
[0026] Each set of strip grooves 10 has a side block 14 snapped into its inner side. The side of two adjacent sets of side blocks 14 that are far apart from each other is attached to the side of two adjacent sets of anti-slip auxiliary frames 11 that are close to each other. There is a height difference between the top of each set of side blocks 14 and the top of the mounting frame 2.
[0027] Specifically, the design of the side block 14 can limit the position of the anti-slip bracket 11, preventing the anti-slip bracket 11 from easily detaching from the anti-slip groove 17, thereby improving the assembly stability of the assembly cylinder 5. At the same time, the height difference design makes it easy for users to quickly pull the side block 14 out of the strip groove 10.
[0028] The inner side of the inner cavity of the strip groove 10 is fitted with a rubber elastic block 15 that fits against the side of the two adjacent sets of side blocks 14 that are close to each other.
[0029] Specifically, the design of the rubber elastic block 15 utilizes the elasticity of the rubber elastic block 15 itself to continuously provide a pushing force to the side block 14, so as to improve the snapping stability between the side block 14 and the anti-slip bracket 11 and prevent the two from easily separating.
[0030] Each set of anti-slip auxiliary frames 11 has a cover plate 13 fixed on the front and back to cover the strip groove 10 and one end of which is attached to the side block 14.
[0031] Specifically, the design of the cover plate 13, together with the side block 14, can completely enclose the strip groove 10, which can effectively prevent foreign objects from easily entering the strip groove 10, affecting the normal operation of its internal structure, and avoiding damage to the auxiliary spring 12.
[0032] The anti-slip bracket 11 is inserted into the anti-slip groove 17 at one end, which has an arc-shaped structure. The anti-slip groove 17 also has an arc-shaped structure.
[0033] Specifically, the anti-slip bracket 11 with an arc-shaped structure at one end and the anti-slip groove 17 with an arc-shaped structure are designed so that the anti-slip bracket 11 can be stably inserted into the anti-slip groove 17 when flipped, avoiding obstruction due to mutual interference.
[0034] Each assembly cylinder 5 has a push plate 7 fixed on the top of its front and back sides, and the bottom of the push plate 7 is attached to the mounting frame 2.
[0035] Specifically, the design of the push plate 7 makes it easy for users to move the assembly cylinder 5 quickly, and facilitates the quick installation and removal of the assembly cylinder 5, thereby improving assembly efficiency.
[0036] The top of the anti-slip bracket 11 and the top of the assembly cylinder 5 are on the same horizontal plane.
[0037] Specifically, the design of being on the same horizontal plane can effectively prevent the protruding anti-slip bracket 11 from directly affecting the normal assembly of the nut and the bolt through the assembly hole 6, thus avoiding mutual interference.
[0038] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A speed reducer with adjustable mounting hole diameter, comprising a speed reducer body (1) and a mounting frame (2) fixed to the bottom of the speed reducer body (1), characterized in that: The mounting frame (2) has positioning grooves (3) on both sides of the top front and back sides. The bottom of the mounting frame (2) has through holes (4) that communicate with the positioning grooves (3). Each group of positioning grooves (3) has an assembly cylinder (5) snapped into it. Each group of assembly cylinders (5) has an assembly hole (6). The mounting frame (2) has multiple sets of strip grooves (10) that are adapted to the positioning grooves (3). The strip grooves (10) and positioning grooves (3) are provided with auxiliary fixing components that cooperate with the assembly cylinders (5) and the assembly holes (6). The auxiliary fixing components include uniformly fixed components. The reinforcing columns (9) around the inner wall of the positioning groove (3) are evenly provided on the surface of each set of assembly cylinders (5) for inserting the reinforcing columns (9). Each set of strip grooves (10) is rotatably equipped with anti-slip auxiliary frame (11). An auxiliary spring (12) is fixed between the bottom of the inner cavity of each set of strip grooves (10) and the anti-slip auxiliary frame (11). Each set of assembly cylinders (5) is provided with a groove (16) for the top horizontal plate of the anti-slip auxiliary frame (11) to be snapped. An anti-slip groove (17) is provided in the groove (16) for inserting one end of the anti-slip auxiliary frame (11).
2. The speed reducer with adjustable assembly hole diameter according to claim 1, characterized in that: Each set of the strip grooves (10) has a side block (14) attached to the inner side of the cavity. The side of the two adjacent sets of side blocks (14) that are far apart from each other is attached to the side of the two adjacent sets of anti-slip brackets (11) that are close to each other. There is a height difference between the top of each set of side blocks (14) and the top of the mounting frame (2).
3. A speed reducer with adjustable assembly hole diameter according to claim 2, characterized in that: The inner side of the inner cavity of the strip groove (10) is fitted with a rubber elastic block (15) that fits against the side of the two adjacent sets of side blocks (14) that are close to each other.
4. A speed reducer with adjustable assembly hole diameter according to claim 2, characterized in that: Each set of anti-slip auxiliary frames (11) has a cover plate (13) fixed on the front and back to cover the strip groove (10) and one end attached to the side block (14).
5. A speed reducer with adjustable assembly hole diameter according to claim 1, characterized in that: The anti-slip bracket (11) is inserted into the anti-slip groove (17) at one end, which has an arc-shaped structure. The anti-slip groove (17) has an arc-shaped structure.
6. A speed reducer with adjustable assembly hole diameter according to claim 1, characterized in that: Each assembly cylinder (5) has a push plate (7) fixed on the top of its front and back sides, and the bottom of the push plate (7) is attached to the mounting frame (2).
7. A speed reducer with adjustable assembly hole diameter according to claim 1, characterized in that: The top of the anti-slip bracket (11) and the top of the assembly cylinder (5) are on the same horizontal plane.