A heat dissipation type speed reducer

By introducing a heat dissipation unit, a heat dissipation cover, and a cooling fan made of elastic material into the speed reducer, the problem of poor heat dissipation of the speed reducer is solved, achieving efficient heat dissipation and stable operation, and extending the life of the fan.

CN224433358UActive Publication Date: 2026-06-30TAIZHOU ZHOUYI MECHANICAL&ELECTRICAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU ZHOUYI MECHANICAL&ELECTRICAL
Filing Date
2025-05-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing speed reducer has poor heat dissipation, which leads to heat accumulation, affects the operation of internal parts, and reduces service life.

Method used

A high-efficiency heat dissipation system including a heat dissipation unit, a heat dissipation cover, and a heat dissipation fan is designed. The heat dissipation unit and heat dissipation cover, along with the heat dissipation fan made of elastic material, work together to quickly dissipate heat. Combined with a filter screen to filter impurities, air circulation is ensured.

Benefits of technology

It improves the heat dissipation efficiency of the reducer, buffers vibration and reduces noise, extends the service life of the cooling fan, and ensures the stable operation of the transmission components.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a heat-dissipating speed reducer, belonging to the field of mechanical transmission technology. It solves the problem that speed reducers generate heat during operation, but the heat dissipation effect of general speed reducers is poor, resulting in the ineffective dissipation of heat and heat accumulation within the speed reducer. This heat can affect the operation of internal components and even reduce the lifespan of the speed reducer. This heat-dissipating speed reducer includes a speed reducer body and a transmission assembly installed within the speed reducer body. The transmission assembly has an output shaft, a connecting shaft, and a drive shaft, and the output shaft, connecting shaft, and drive shaft are connected by gears. A front cover plate and a rear cover plate are respectively installed on both sides of the speed reducer body for sealing. The drive shaft and output shaft pass through the front cover plate and the rear cover plate, respectively. The rear cover plate has a fixing layer and a supporting layer. This utility model has the advantages of improved heat dissipation efficiency and extended service life.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical transmission technology, and specifically relates to a heat dissipation type speed reducer. 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 the prime mover and the working machine.

[0003] Speed ​​reducers generate heat during operation. However, speed reducers generally have poor heat dissipation, which means that the heat generated in the speed reducer cannot be effectively dissipated. This causes heat to accumulate in the speed reducer, which can affect the operation of the internal parts and even reduce the service life of the speed reducer. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a high-efficiency heat dissipation speed reducer.

[0005] The objective of this utility model can be achieved through the following technical solution: A heat-dissipating speed reducer includes a speed reducer body and a transmission component installed inside the speed reducer body. The transmission component has an output shaft, a connecting shaft, and a transmission shaft, and the output shaft, connecting shaft, and transmission shaft are transmitted through gears. The speed reducer body is characterized by having a front cover plate and a rear cover plate for sealing the speed reducer body on both sides. The transmission shaft and the output shaft pass through the front cover plate and the rear cover plate, respectively. The rear cover plate has a fixing layer and a support layer. The fixing layer is connected to the speed reducer body by bolts. The support layer has a groove at its center. The fixing layer has several through holes circumferentially, and a filter screen for filtering impurities is installed in each of the through holes. A heat dissipation unit is installed on the support layer. The heat dissipation unit has a heat dissipation cover for support, and the heat dissipation cover has an opening at its center corresponding to the output shaft. Several heat dissipation holes are opened on the heat dissipation cover. A cooling fan is sleeved on the output shaft, and a pin groove for fixing the cooling fan is opened on the output shaft. The cooling fan has a pin.

[0006] In the aforementioned heat dissipation type reducer, a fixing rod is provided at the bottom of the heat dissipation cover, and a positioning hole for inserting the fixing rod is provided on the support layer. A fixing flange is fixedly provided on the fixing rod, and the fixing flange is fixedly connected to the fixing rod by threads to fix the heat dissipation cover.

[0007] In the aforementioned heat dissipation type reducer, the heat dissipation cover is designed as a disc shape with a central opening.

[0008] In the aforementioned heat-dissipating speed reducer, the cooling fan is made of an elastic material.

[0009] Compared with existing technologies, this heat-dissipating reducer forms a highly efficient heat dissipation system through the synergistic action of the heat dissipation unit, heat dissipation cover, and cooling fan. This system can quickly dissipate the heat inside the reducer, improving heat dissipation efficiency. The cooling fan is made of elastic material, which can buffer vibration, reduce noise, and adapt to the rotation of the output shaft, thus improving the service life of the cooling fan. Attached Figure Description

[0010] Figure 1 This is a 3D view of this heat-dissipating speed reducer.

[0011] Figure 2 This is a sectional view of the heat-dissipating speed reducer.

[0012] In the diagram, 1. Reducer body; 2. Output shaft; 3. Connecting rod; 4. Drive shaft; 5. Front cover plate; 6. Rear cover plate; 7. Fixing layer; 8. Supporting layer; 9. Through hole; 10. Filter screen; 11. Heat dissipation cover; 12. Heat dissipation hole; 13. Cooling fan; 14. Pin groove; 15. Pin; 16. Fixing rod; 17. Fixing flange. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2As shown, this heat-dissipating speed reducer includes a speed reducer body 1 and a transmission assembly installed inside the speed reducer body 1. The transmission assembly has an output shaft 2, a connecting shaft 3, and a transmission shaft 4. The output shaft 2, connecting shaft 3, and transmission shaft 4 are connected by gears. A front cover plate 5 and a rear cover plate 6 for sealing the speed reducer body 1 are respectively installed on both sides of the speed reducer body 1. The transmission shaft 4 and the output shaft 2 pass through the front cover plate 5 and the rear cover plate 6, respectively. The rear cover plate 6 has a fixing layer 7 and a support layer 8. The fixing layer 7 is connected to the speed reducer body 1 by bolts. The support layer 8 has a groove in its center. The fixing layer 7 is connected to the speed reducer body 1 by bolts to ensure a stable connection between the rear cover plate 6 and the speed reducer body 1. The groove in the center of the support layer 8 provides space for the installation of the heat dissipation unit. The fixing layer 7 has several through holes 9 circumferentially, and a filter screen for filtering impurities is installed in each through hole 9. 10. The filter screen 10 can effectively block external dust, impurities, etc. from entering the reducer, protecting the normal operation of the transmission components, while ensuring air circulation and facilitating heat dissipation. A heat dissipation unit is installed on the support layer 8. The heat dissipation unit is provided with a heat dissipation cover 11 for support. The center of the heat dissipation cover 11 is provided with an opening corresponding to the output shaft 2. The heat dissipation cover 11 is provided with an opening corresponding to the output shaft 2, ensuring that the output shaft 2 can pass through the heat dissipation cover 11 and connect to the drive device. Several heat dissipation holes 12 are opened on the heat dissipation cover 11. A cooling fan 13 is sleeved on the output shaft 2. A pin groove 14 is opened on the output shaft 2 for fixing the cooling fan 13. The cooling fan 13 has a pin 15. Through the cooperation of the pin 15 and the pin groove 14, the cooling fan 13 is firmly installed on the output shaft 2 and rotates with the output shaft 2.

[0015] To elaborate further, a fixing rod 16 is provided at the bottom of the heat dissipation cover 11, and a positioning hole is provided on the support layer 8 for the fixing rod 16 to be inserted. A fixing flange 17 is fixedly provided on the fixing rod 16, and the fixing flange 17 is fixedly connected to the fixing rod 16 by threads, thereby fixing the heat dissipation cover 11 stably on the support layer 8, ensuring the stability of the heat dissipation cover 11 during operation.

[0016] To elaborate further, the heat sink 11 is designed as a disc with a central opening, which is conducive to the even dissipation of heat.

[0017] To elaborate further, the cooling fan 13 is made of a flexible material.

[0018] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0019] Although this document frequently uses terms such as reducer body 1, output shaft 2, connecting rod 3, drive shaft 4, front cover plate 5, rear cover plate 6, fixing layer 7, support layer, through hole 9, filter screen 10, heat dissipation cover 11, heat dissipation hole 12, cooling fan 13, pin groove 14, pin 15, fixing rod 16, and fixing flange 17, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A heat-dissipating type speed reducer, comprising a speed reducer body (1) and a transmission assembly installed in the speed reducer body (1), the transmission assembly having an output shaft (2), a connecting shaft and a transmission shaft (4), and the output shaft (2), the connecting shaft (3) and the transmission shaft (4) being in transmission through gears, characterized in that, The reducer body (1) is equipped with a front cover plate (5) and a rear cover plate (6) for sealing the reducer body (1) on both sides respectively. The drive shaft (4) and the output shaft (2) pass through the front cover plate (5) and the rear cover plate (6) respectively. The rear cover plate (6) has a fixing layer (7) and a support layer (8). The fixing layer (7) is connected to the reducer body (1) by bolts. The support layer (8) has a groove in the center. The fixing layer (7) has several through holes (9) in the circumferential direction. The through holes (9) are provided with filters. The filter screen (10) for impurities, the support layer (8) is equipped with a heat dissipation unit, the heat dissipation unit is provided with a heat dissipation cover (11) for supporting, and the center of the heat dissipation cover (11) is provided with an opening corresponding to the output shaft (2), the heat dissipation cover (11) is provided with a plurality of heat dissipation holes (12), the output shaft (2) is fitted with a cooling fan (13), the output shaft (2) is provided with a pin groove (14) for fixing the cooling fan (13), and the cooling fan (13) has a pin (15).

2. The heat-dissipating speed reducer according to claim 1, characterized in that, The heat dissipation cover (11) is provided with a fixing rod (16) at the bottom. The support layer (8) is provided with a positioning hole for the fixing rod (16) to be inserted. A fixing flange (17) is fixedly provided on the fixing rod (16). The fixing flange (17) is fixedly connected to the fixing rod (16) by thread to fix the heat dissipation cover (11).

3. The heat-dissipating reducer according to claim 1, characterized in that, The heat dissipation cover (11) is designed as a disc shape with a central opening.

4. A heat-dissipating speed reducer according to claim 1, characterized in that, The cooling fan (13) is made of an elastic material.