A buffer gear set for a transmission

By combining electromagnetic repulsion and water cooling, the problems of wear and adjustment in friction-type and elastic buffer gear sets are solved, achieving efficient and stable operation of the transmission mechanism and improving service life and reliability.

CN224397058UActive Publication Date: 2026-06-23HANGZHOU KAISHEN MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU KAISHEN MASCH CO LTD
Filing Date
2025-09-19
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing friction-type and elastic buffer gear sets are prone to wear and fatigue during long-term use, and the buffering force is not easy to adjust, making it difficult to meet the requirements of long-term, efficient and stable operation of transmission mechanisms.

Method used

The buffering is achieved by using electromagnetic repulsion. The magnetic repulsion of the electromagnetic plate generates buffering resistance, and a water-cooled radiator is used to keep the temperature of the electromagnetic components stable. The buffering force is adjusted by changing the current.

Benefits of technology

It avoids the wear and tear of friction and elastic components, improves the service life and transmission reliability of the gear set, and realizes flexible adjustment of the buffer force and stable operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of buffer gear sets of transmission mechanism, including support deck, driving gear and buffer gear, the driving gear is installed in the support deck one side by the gear support, the buffer gear is engaged with the driving gear, shaft rod is installed at the top end of the buffer gear, base is installed in the support deck one side, fixed ring is installed in the base one end, the fixed ring is set in the outer side of one end of the shaft rod, several support inclined blocks are installed in the fixed ring inner side;The gear set is buffered in the mode of electromagnetic repulsive force, not rely on friction or elastic component, for friction type buffer gear assembly, the loss and fatigue problem caused by friction can be avoided;For elastic buffer type buffer gear set, the phenomenon of elastic attenuation under long-term high load impact of metal spring and other elastic components also no longer exists, greatly improves the service life and transmission reliability of gear set.
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Description

Technical Field

[0001] This utility model relates to the field of buffer gear set technology, specifically a buffer gear set for a transmission mechanism. Background Technology

[0002] In the field of transmission mechanisms, buffer gear sets, as gear assemblies with "flexible buffering capabilities," are widely used to weaken or absorb impact loads, vibrations, and speed fluctuations, protect core components, and improve transmission smoothness. They add a buffering function to "rigid transmission" and are mainly divided into two types: elastic buffering and friction buffering. However, in existing technologies, friction buffer gear assemblies, relying on friction for buffering, are prone to wear and fatigue problems, affecting service life and transmission reliability. Elastic buffer gear sets typically use elastic components such as springs or torsion springs. Under long-term high-load impact conditions, these elastic components are prone to elastic decay, causing the buffering effect to gradually decrease, making it difficult to continuously and stably buffer impact loads. Furthermore, the buffering force is not easily adjustable, failing to meet the requirements of long-term, efficient, and stable operation of transmission mechanisms.

[0003] Therefore, this utility model provides a buffer gear set for a transmission mechanism. Summary of the Invention

[0004] This invention provides a buffer gear set for a transmission mechanism, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a buffer gear set for a transmission mechanism, comprising a support deck, a drive gear, and a buffer gear. The drive gear is mounted on one side of the support deck via a gear support. The buffer gear meshes with the drive gear. A shaft is mounted at the top of the buffer gear. A base is mounted on one side of the support deck. A fixing ring is mounted at one end of the base. The fixing ring is sleeved on the outer side of one end of the shaft. A plurality of support inclined blocks are mounted inside the fixing ring. A forward reverse thrust electromagnetic plate and a reverse reverse thrust electromagnetic plate are respectively mounted on both sides of the plurality of support inclined blocks. A plurality of swing plates are mounted on the outer side of the shaft. A forward magnetic plate and a reverse magnetic plate are respectively mounted on both sides of the plurality of swing plates. The forward reverse thrust electromagnetic plate and the forward magnetic plate are magnetically repelled, and the reverse reverse thrust electromagnetic plate and the reverse magnetic plate are magnetically repelled.

[0006] Preferably, several swing plates are hinged to the outside of the shaft and swing. Several limiting plates are installed on the outside of the shaft, and every two limiting plates form a group. The swing plate swings between the corresponding two limiting plates.

[0007] Preferably, a water-cooled radiator is installed in the through hole on the base to dissipate heat from the fixing ring, and the mating surfaces of the fixing ring and the plurality of supporting inclined blocks have heat conductors.

[0008] Preferably, two water pipes are installed on one side of the water-cooled radiator, and an annular conduit is installed at one end of each of the two water pipes. The two annular conduits are respectively installed at the top and bottom of the fixing ring.

[0009] Preferably, the fixing ring has a plurality of annular inner grooves and vertical connecting holes, the annular inner grooves are connected to the internal space of the vertical connecting holes, and the two annular conduits correspond to the internal space of the plurality of vertical connecting holes.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] This gear set uses electromagnetic repulsion for buffering, rather than relying on friction or elastic components. For friction-type buffer gear assemblies, the wear and fatigue caused by friction are avoided. For elastic buffer gear sets, the phenomenon of elastic decay of metal springs and other elastic components under long-term high-load impact is also eliminated, greatly improving the service life and transmission reliability of the gear set. Secondly, by adjusting the current, the buffering force can be easily changed. This adjustability allows the gear set to adapt well to the different buffering needs of the transmission mechanism during long-term, efficient and stable operation, successfully solving the problem of the difficulty in adjusting the buffering force of previous buffer gear sets. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is the utility model Figure 1 A magnified three-dimensional structural diagram of a portion of point A in the middle;

[0014] Figure 3 This is an enlarged structural schematic diagram of components such as the buffer gear in this utility model;

[0015] Figure 4 This is an enlarged structural schematic diagram of the swing plate and other components in this utility model;

[0016] Figure 5 This is an enlarged cross-sectional structural diagram of the fixing ring in this utility model.

[0017] In the diagram: 1. Support deck; 2. Drive gear; 21. Gear support; 3. Buffer gear; 31. Shaft; 32. Swing plate; 321. Forward magnetic plate; 322. Reverse magnetic plate; 33. Limiting plate; 4. Base; 41. Fixing ring; 411. Annular inner groove; 412. Vertical connecting hole; 42. Supporting inclined block; 421. Forward reverse thrust electromagnetic plate; 422. Reverse reverse thrust electromagnetic plate; 5. Water-cooled radiator; 51. Water pipe; 52. Annular conduit. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 1-5 As shown, a buffer gear set of a transmission mechanism includes a support plate 1, a drive gear 2, and a buffer gear 3. The drive gear 2 is mounted on one side of the support plate 1 via a gear support 21. The buffer gear 3 is meshed with the drive gear 2. A shaft 31 is mounted on the top of the buffer gear 3. A base 4 is mounted on one side of the support plate 1. A fixing ring 41 is mounted on one end of the base 4. The fixing ring 41 is sleeved on the outer side of one end of the shaft 31. A plurality of support inclined blocks 42 are mounted on the inner side of the fixing ring 41. A forward reverse thrust electromagnetic plate 421 and a reverse reverse thrust electromagnetic plate 422 are respectively mounted on both sides of the plurality of support inclined blocks 42. A plurality of swing plates 32 are mounted on the outer side of the shaft 31. A forward magnetic plate 321 and a reverse magnetic plate 322 are respectively mounted on both sides of the plurality of swing plates 32. The forward reverse thrust electromagnetic plate 421 and the forward magnetic plate 321 are magnetically repelled, and the reverse reverse thrust electromagnetic plate 422 and the reverse magnetic plate 322 are magnetically repelled.

[0020] Specifically, the driving gear 2 and the buffer gear 3 maintain a meshing transmission relationship. When the transmission mechanism encounters impact loads, vibrations, or speed fluctuations during operation, the buffer gear 3 will move accordingly, thereby driving the shaft 31 and several swing plates 32 mounted on the outside of the shaft 31 to rotate. Inside the fixed ring 41, several support inclined blocks 42 are provided. Each support inclined block 42 has a forward reverse electromagnetic plate 421 and a reverse reverse electromagnetic plate 422 mounted on both sides. Correspondingly, each swing plate 32 also has a forward magnetic plate 321 and a reverse magnetic plate 322 mounted on both sides. Due to the forward reverse electromagnetic plate 421 and the forward magnetic plate 322, the two sides of the swing plate 32 are connected. The components 321 and 322 have magnetic repulsion properties. The reverse electromagnetic plate 422 and the reverse electromagnetic plate 322 also have magnetic repulsion. Therefore, when the swing plate 32 rotates with the shaft 31, these magnetically repulsive components will generate a repulsive force between each other. This repulsive force will hinder the rotation of the swing plate 32 and the shaft 31, thereby generating buffer resistance to reduce the impact of impact load, vibration and speed fluctuation. Moreover, by adjusting the current of the forward and reverse electromagnetic plates 421 and 422, the strength of the electromagnetic repulsion force can be precisely changed, and the buffer force can be flexibly adjusted according to the actual transmission conditions.

[0021] In one embodiment of this utility model, such as Figures 1-5 As shown, several swing plates 32 are hinged to the outside of the shaft 31 and swing. Several limiting plates 33 are installed on the outside of the shaft 31. Every two limiting plates 33 form a group, and the swing plate 32 swings between the corresponding two limiting plates 33.

[0022] Specifically, when impacts or other situations occur during the transmission process, the shaft 31 drives the swing plate 32 to rotate. The swing plate 32 will swing within the range defined by the limiting plate 33. The swing plate 32 can adjust its angle accordingly to follow the rotation direction of the shaft 31. At the same time, it generates buffer resistance through magnetic repulsion with the positive and negative electromagnetic plates 421 and 422 inside the fixed ring 41. The existence of the limiting plate 33, on the one hand, can limit the swing amplitude of the swing plate 32, avoiding excessive swing that may cause interference with other components or misalignment of magnetic components, thus ensuring the stability and reliability of electromagnetic repulsion buffering; on the other hand, it also provides a reference range for the swing plate 32, allowing the swing plate 32 to cooperate with the electromagnetic plates within a reasonable space, accurately exerting the buffering effect, further improving the buffering effect of the entire buffer gear set against impacts and vibrations, and enhancing the smoothness of the transmission.

[0023] In one embodiment of this utility model, such as Figures 1-5 As shown, a water-cooled radiator 5 is installed in the through hole on the base 4 to dissipate heat from the fixing ring 41, and the mating surface between the fixing ring 41 and several supporting inclined blocks 42 has a heat conductor.

[0024] Specifically, when the buffer gear set is working, the forward-reverse electromagnetic plate 421 or the reverse-reverse electromagnetic plate 422 is energized to generate electromagnetic repulsion, which generates heat due to electromagnetic effects. This heat is quickly transferred to the fixed ring 41 through the heat conductor at the mating surface between the fixed ring 41 and the supporting inclined block 42. Subsequently, the water-cooled radiator 5 uses the circulating flow of coolant to carry away the heat from the fixed ring 41, thereby effectively reducing the temperature of the fixed ring 41 and related components such as the electromagnetic plate. This prevents the performance of the electromagnetic components from being affected by excessive temperature, ensuring the stability and reliability of the buffer gear set during long-term operation, and preventing the buffering effect from decreasing or components from being damaged due to overheating.

[0025] In one embodiment of this utility model, such as Figures 1-5 As shown, two water pipes 51 are installed on one side of the water-cooled radiator 5. Each of the two water pipes 51 has an annular conduit 52 installed at one end. The two annular conduits 52 are respectively installed at the top and bottom of the fixing ring 41.

[0026] Specifically, two water pipes 51 installed on one side of the water-cooled radiator 5 deliver coolant to annular conduits 52 installed at the top and bottom of the fixed ring 41, respectively. The annular conduits 52 cooperate with the fixed ring 41, allowing the coolant to circulate around the fixed ring 41. When the buffer gear assembly operates, and the fixed ring 41 heats up due to the electromagnetic components, the circulating coolant can fully exchange heat with the fixed ring 41, efficiently removing heat. This achieves comprehensive and continuous heat dissipation for the fixed ring 41 and related electromagnetic components, further ensuring the temperature stability of the buffer gear assembly during long-term operation, preventing overheating from affecting the performance of the electromagnetic repulsion buffer, and improving the stability and reliability of the entire device.

[0027] In one embodiment of this utility model, such as Figures 1-5 As shown, the fixing ring 41 has several annular inner grooves 411 and vertical connecting holes 412. The annular inner grooves 411 and the vertical connecting holes 412 are connected to each other. The two annular conduits 52 correspond to the internal spaces of the several vertical connecting holes 412.

[0028] Specifically, when the water-cooled radiator 5 is working, the coolant enters one of the annular conduits 52 through the water pipe 51, flows into the annular inner groove 411 through the corresponding vertical connecting hole 412, and flows along the annular path of the fixed ring 41 within the annular inner groove 411, fully exchanging heat with the fixed ring 41 and the connected electromagnetic components. Then, it flows into another annular conduit 52 through other vertical connecting holes 412, and returns to the water-cooled radiator 5 through the water pipe 51. This design allows the coolant to form a multi-path, all-around circulation flow within the fixed ring 41, significantly improving heat exchange efficiency, ensuring that the heat of the fixed ring 41 and the electromagnetic components is quickly and evenly removed, effectively maintaining stable operating temperature, and ensuring the continuity and reliability of the electromagnetic repulsion buffer performance.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Working principle: When the buffer gear set of this transmission mechanism is working, the driving gear 2 and the buffer gear 3 mesh and transmit power. When the transmission mechanism encounters impact load, vibration, or speed fluctuation, the buffer gear 3 drives the shaft 31 and the swing plate 32 hinged on the outside to rotate. The swing plate 32 swings within the range limited by the two sets of limiting plates 33 on the outside of the shaft 31, avoiding excessive swing that could cause component interference or magnetic misalignment. The positive and negative reverse electromagnetic plates 421 or 422 on both sides of the inclined block 42 on the inner side of the fixed ring 41 are energized. When one of them works, the positive and negative electromagnetic plates 321 and 322 repel each other, generating a buffer resistance that hinders the rotation of the swing plate 32 and the shaft 31, weakening the impact, vibration, and speed fluctuation. The intensity of the repulsive force can be precisely changed by adjusting the current of the electromagnetic plates, flexibly adapting to the working conditions. Meanwhile, the water-cooled radiator 5 in the through hole of the base 4 delivers coolant to the annular conduit 52 at the top and bottom of the fixed ring 41 through the water pipe 51. The coolant enters the annular inner groove 411 inside the fixed ring 41 through the vertical connecting hole 412, flows along the annular path and exchanges heat with the fixed ring 41 and the electromagnetic plate, and then flows back through the vertical connecting hole 412, the annular conduit 52 and the water pipe 51. Combined with the heat conductor on the mating surface of the fixed ring 41 and the supporting inclined block 42, the heat generated by the electromagnetic plate is quickly and evenly removed, ensuring stable buffering performance.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buffer gear set for a transmission mechanism, comprising a support plate (1), a drive gear (2), and a buffer gear (3), wherein the drive gear (2) is mounted on one side of the support plate (1) via a gear support (21), the buffer gear (3) is meshed with the drive gear (2), and a shaft (31) is mounted on the top of the buffer gear (3), characterized in that: A base (4) is installed on one side of the support deck (1). A fixing ring (41) is installed at one end of the base (4). The fixing ring (41) is sleeved on the outer side of one end of the shaft (31). Several support inclined blocks (42) are installed on the inner side of the fixing ring (41). A forward thrust electromagnetic plate (421) and a reverse thrust electromagnetic plate (422) are respectively installed on both sides of the several support inclined blocks (42). Several swing plates (32) are installed on the outer side of the shaft (31). A forward magnetic plate (321) and a reverse magnetic plate (322) are respectively installed on both sides of the several swing plates (32). The forward thrust electromagnetic plate (421) and the forward magnetic plate (321) are magnetically repelled. The reverse thrust electromagnetic plate (422) and the reverse magnetic plate (322) are magnetically repelled.

2. The buffer gear set of the transmission mechanism according to claim 1, characterized in that: Several swing plates (32) are hinged to swing on the outside of the shaft (31). Several limiting plates (33) are installed on the outside of the shaft (31). Every two limiting plates (33) form a group. The swing plate (32) swings between the corresponding two limiting plates (33).

3. The buffer gear set of the transmission mechanism according to claim 1, characterized in that: A water-cooled radiator (5) for dissipating heat from the fixing ring (41) is installed in the through hole of the base (4), and the mating surface between the fixing ring (41) and several of the supporting inclined blocks (42) has a heat conductor.

4. The buffer gear set of the transmission mechanism according to claim 3, characterized in that: Two water pipes (51) are installed on one side of the water-cooled radiator (5), and an annular conduit (52) is installed at one end of each of the two water pipes (51). The two annular conduits (52) are respectively installed at the top and bottom of the fixing ring (41).

5. The buffer gear set of a transmission mechanism according to claim 4, characterized in that: The fixing ring (41) has several annular inner grooves (411) and vertical connecting holes (412). The annular inner grooves (411) are connected to the internal space of the vertical connecting holes (412). The two annular conduits (52) correspond to the internal space of the several vertical connecting holes (412).