Speed reducer for grinding

By introducing a heat dissipation device and dynamically adapting water flow adjustment into the reducer, the problem of belt overheating was solved, achieving efficient heat dissipation and uniform cooling, extending the service life of the equipment and reducing maintenance costs.

CN224479268UActive Publication Date: 2026-07-10GUANGDONG ZHUOHONGDA INTELLIGENT TRANSMISSION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHUOHONGDA INTELLIGENT TRANSMISSION TECH CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional grinding reducers rely on belt cooling methods that are ineffective at reducing temperature, leading to belt overheating, shortened service life, and safety hazards.

Method used

A speed reducer including a heat dissipation device was designed. Through the coordinated use of a fourth driven gear, baffle, diverter, fixing parts and brush, dynamic heat dissipation is achieved, the gear belt temperature is reduced in time, and water flow is adjusted by knob and valve to prevent water leakage.

Benefits of technology

It effectively avoids the risk of gear belts breaking due to overheating from prolonged high-speed rotation, improves heat dissipation and uniformity, saves water resources, reduces equipment maintenance costs, extends the life of vulnerable parts, and ensures stable equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides grinding's speed reducer relates to mechanical engineering technical field, including speed reducer shell, driving motor is fixedly installed one side of speed reducer shell through bolt, one side fixed mounting of driving motor has controller. The utility model discloses the setting of heat dissipation device, through the cooperation of fourth driven gear, baffle, shunt pipe, fixing piece and brush, through driving synchronous rotation, under the design feature of the utility model, make heat dissipation device can follow driving motor synchronous regulation water frequency of rotation, realize " the higher speed, the more timely cooling " dynamic adaptation, accurate reduction gear belt temperature, effectively avoid its risk of breakage because of long -time high -speed rotation overheating, the setting of brush can carry out dust cleaning to gear belt surface, can even paint water source on its surface, greatly improve the heat dissipation effect and cooling uniformity, guarantee gear belt and other components stable operation, further improved the practicability of grinding speed reducer.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, specifically to a speed reducer for grinding. Background Technology

[0002] In modern industrial production, speed reducers, as key equipment for power transmission and speed conversion, are widely used in many industries, such as mining, metallurgy, building materials, and chemicals. Grinding operations in these industries, such as crushing and grinding ores, grinding cement, and grinding ceramic raw materials, all require converting the high speed and low torque output of the power source into low speed and high torque to meet the grinding equipment's demand for strong power.

[0003] As a power conversion device, the speed reducer is closely connected to the belt drive. During operation, the belt generates a lot of heat due to friction with the pulley, high load operation, and environmental factors. In traditional grinding speed reducer systems, natural air cooling or simple forced air cooling is often used to dissipate heat from the belt. However, when the grinding operation lasts for a long time and the load is heavy, these methods are difficult to effectively reduce the belt temperature, leading to belt overheating. Belt overheating not only accelerates belt aging and wear, reducing the belt's service life, but may also cause belt slippage, breakage, and other malfunctions, creating safety hazards and affecting the normal operation of the grinding equipment. Utility Model Content

[0004] This utility model provides a speed reducer for grinding, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An embodiment of this utility model provides a speed reducer for grinding, comprising:

[0007] Gearbox housing;

[0008] A drive motor is fixedly mounted on one side of the reducer housing by bolts. A controller is fixedly mounted on one side of the drive motor, and a drive gear is fixedly connected to the output end of the drive motor.

[0009] A drive shaft is connected to the inside of a drive motor via a bearing. A first driven gear is snapped into the middle of one end of the drive shaft, and a second driven gear and a third driven gear are snapped into the two ends of the drive shaft, respectively. A gear belt is snapped into the outer arc surface of the second driven gear.

[0010] A heat dissipation device is installed on one side of the reducer housing. The heat dissipation device includes a fixed box, which is fixedly installed on one side of the reducer housing. A water inlet with a diameter of 8-12mm is opened on one side of the fixed box, and a water outlet is opened on the other side of the fixed box. A fixed pipe is fixedly connected to the bottom end of the water outlet, and a diversion pipe is fixedly connected to the other end of the fixed pipe. Connecting pipes are respectively connected to the two water outlets on both sides of the diversion pipe, and fixing components are fixedly connected to the other ends of the two connecting pipes respectively.

[0011] The above technical solution involves a drive motor that drives a drive gear to rotate, which in turn drives a first driven gear to rotate. The first driven gear then drives a drive shaft to rotate, which in turn drives a second driven gear to rotate, thereby driving a gear belt to rotate and output power to the external grinding machine.

[0012] Furthermore, a mounting base is fixedly installed at the bottom of the reducer housing. The mounting base is rotatably connected to the drive shaft through a first bearing. One side of the driving gear is meshed with the first driven gear. A gear groove is opened on the inner side of the gear belt, and the gear groove is adapted to the second driven gear.

[0013] The above technical solution, namely the setting of the gear groove, can prevent slippage when the second driven gear drives the gear belt to rotate.

[0014] Furthermore, the fixed box is provided with a rotating shaft, the top end of which is rotatably connected to the fixed box via a second bearing. A fourth driven gear is snapped onto the upper arc surface of the rotating shaft. One side of the fourth driven gear meshes with a third driven gear. A baffle is fixedly connected to the bottom end of the rotating shaft. The bottom end of the baffle is in contact with the inner bottom surface of the fourth driven gear, and an arc-shaped through hole is provided at the top end of the baffle.

[0015] The above technical solution involves meshing the third driven gear with the fourth driven gear, starting the drive motor to drive the third and fourth driven gears to rotate, which in turn drives the baffle to rotate synchronously. Due to the design features of the baffle, its speed is matched with that of the drive motor, thereby adjusting the frequency of water cooling.

[0016] Furthermore, a valve plate is provided inside the fixed tube, and a knob is fixedly connected to one side of the valve plate. A positioning block is provided on one side of the fourth driven gear and the fixed tube, and the valve plate is adapted to the internal dimensions of the fixed tube.

[0017] The above technical solution allows staff to accurately understand the deflection state of the valve plate. When the two positioning blocks are in contact, the valve plate blocks the inside of the fixed pipe.

[0018] Furthermore, the two fixing members are symmetrically fixedly installed on both sides of the mounting base. The top of the fixing member has an inner cavity, and one side of the inner cavity has a water outlet. The bottom edge of the inner cavity is an inclined surface.

[0019] The above technical solution, with its inclined surface, avoids water accumulation and ensures even cooling of the gear belt.

[0020] Furthermore, multiple brushes are fixedly installed on one side of each of the two fasteners, with one end of each brush fitting against the outer surface of the gear belt.

[0021] The above technical solution allows for the cleaning of dust from the gear belt surface using brushes, while also enabling the even application of water, further improving heat dissipation.

[0022] The above-described solution of this utility model has at least the following beneficial effects:

[0023] This utility model, through the design of a heat dissipation device, utilizes a fourth driven gear, baffle, diverter, fixing component, and brush to drive synchronous rotation. This design allows the heat dissipation device to adjust the water flow frequency in sync with the drive motor speed, achieving dynamic adaptation of "higher speed, more timely cooling." This precisely reduces the gear belt temperature, effectively preventing the risk of breakage due to overheating from prolonged high-speed rotation. Simultaneously, the brush cleans dust from the gear belt surface and evenly applies water, significantly improving heat dissipation and cooling uniformity, ensuring stable operation of the gear belt and other components, and further enhancing the practicality of the grinding reducer.

[0024] This invention, through the setting of knobs and valve plates, can flexibly adjust the flow rate or block the water flow, which can solve the problem of water leakage during shutdown to a certain extent, thus saving water resources, reducing equipment maintenance costs, and further improving the performance of the grinding reducer. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This utility model Figure 1 Internal structure diagram;

[0028] Figure 3 This is a cross-sectional view and structural schematic diagram of the speed reducer in this utility model;

[0029] Figure 4This is a schematic diagram of the internal structure of the mounting base in this utility model;

[0030] Figure 5 This is a partial structural diagram of the baffle in this utility model;

[0031] Figure 6 This is a utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0032] Figure 7 This is a utility model Figure 5 Enlarged structural diagram at point B.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Gearbox housing; 2. Drive motor; 21. Controller; 3. Drive gear; 4. First driven gear; 5. Drive shaft; 6. First bearing; 7. Second driven gear; 8. Third driven gear; 9. Mounting base; 10. Gear belt; 11. Heat dissipation device; 111. Fixing box; 112. Fourth driven gear; 113. Rotating shaft; 114. Second bearing; 115. Baffle; 116. Fixing pipe; 117. Diverter pipe; 118. Connecting pipe; 119. Fixing component; 120. Brush; 121. Water inlet; 122. Knob; 123. Valve plate. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0037] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0039] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0040] Example

[0041] like Figures 1 to 7As shown, an embodiment of this utility model provides a speed reducer for grinding, comprising: a speed reducer housing 1; a drive motor 2 is bolted to one side of the speed reducer housing 1, a controller 21 is fixedly mounted to one side of the drive motor 2, and a drive gear 3 is fixedly connected to the output end of the drive motor 2; a drive shaft 5 is connected to a bearing on one side of the drive motor 2, a first driven gear 4 is snapped into the middle of one end of the drive shaft 5, and a second driven gear 7 and a third driven gear 8 are snapped into the two ends of the drive shaft 5 respectively, and a gear belt 10 is snapped into the outer arc surface of the second driven gear 7; a heat dissipation device 11 is provided on one side of the speed reducer housing 1, wherein the heat dissipation device 11 includes a fixed box 111, the fixed box 111 is fixedly mounted on one side of the speed reducer housing 1, the fixed box 111 has a water inlet 121 with a diameter of 8-12mm, the fixed box 111 has a water outlet inside, and a fixed pipe is fixedly connected to the bottom end of the water outlet. 116. A diversion pipe 117 is fixedly connected to the other end of the fixed pipe 116. Connecting pipes 118 are connected to the outlets on both sides of the diversion pipe 117. Fixing members 119 are fixedly connected to the other ends of the two connecting pipes 118. A mounting base 9 is fixedly installed at the bottom of the reducer housing 1. The mounting base 9 is rotatably connected to the drive shaft 5 through the first bearing 6. One side of the drive gear 3 is meshed with the first driven gear 4. A gear groove is opened on the inner side of the gear belt 10, and the gear groove is adapted to the second driven gear 7. The gear belt 10 is connected to the second driven gear 7 by a snap-fit ​​connection. The other end of the second driven gear 7 is connected to the external grinding device. When the drive motor 2 starts, the drive gear 3 rotates under the action of the drive motor 2, which in turn drives the first driven gear 4 to drive the second driven gear 7 to rotate through the drive shaft 5. At this time, the second driven gear 7 drives the external grinding device to process the items.

[0042] It should be noted that the other end of the gear belt 10 can be equipped with other drive devices according to usage requirements, such as driving the rotation of the grinding disc via the gear belt 10.

[0043] like Figures 4 to 7As shown, the fixed box 111 is equipped with a rotating shaft 113. The top end of the rotating shaft 113 is rotatably connected to the fixed box 111 via a second bearing 114. A fourth driven gear 112 is snapped onto the upper arc surface of the rotating shaft 113. One side of the fourth driven gear 112 meshes with a third driven gear 8. A baffle 115 is fixedly connected to the bottom end of the rotating shaft 113. The bottom end of the baffle 115 is in contact with the inner bottom surface of the fourth driven gear 112, and an arc-shaped through hole is provided at the top end of the baffle 115. The central angle of the arc-shaped through hole of the baffle 115 is 45-60 degrees, and the diameter of the hole is 5-8 mm. Two fixing parts 119 are symmetrically fixedly installed on both sides of the mounting base 9. The top of the component 119 has an inner cavity, and a water outlet is provided on one side of the inner cavity. The bottom edge of the inner cavity is an inclined surface. The inclined surface of the inner cavity of the fixing component 119 has an angle of 15-30 degrees with the horizontal plane. The fourth driven gear 112 is connected to the third driven gear 8 by meshing. When the drive motor 2 starts, the third driven gear 8 rotates under the action of the drive motor 2, which drives the fourth driven gear 112 to rotate, and then drives the rotating shaft 113 and the baffle 115 to rotate synchronously. At this time, when the baffle 115 rotates and the arc-shaped through hole at the top coincides with the water outlet hole inside the reducer housing 1, the water source flows into the fixing pipe 116 through the arc-shaped through hole, thereby dissipating heat from the belt.

[0044] like Figures 4 to 7 As shown, a valve plate 123 is installed inside the fixed tube 116. A knob 122 is fixedly connected to one side of the valve plate 123. A positioning block is provided on one side of the fourth driven gear 112 and the fixed tube 116 respectively. The internal dimensions of the valve plate 123 and the fixed tube 116 are adapted to each other. Multiple brushes 120 are fixedly installed on one side of the two fixing parts 119. The brushes 120 are made of high temperature resistant nylon material with a hardness of HRC50-55. One end of the brush 120 is in contact with the outer surface of the gear belt 10. The fourth driven gear 112 is connected to the valve plate 123 by a fixed connection. When the knob 122 is turned, it drives the valve plate 123 to block the water source and adjust the water flow.

[0045] In this embodiment of the invention, the working principle is as follows: During use, tap water is introduced into the device through an external water pipe via inlet 121. Then, the gear belt 10 is connected to the second driven gear 7, and the other end of the second driven gear 7 is connected to an external grinding machine. Next, the drive motor 2 is started, causing the drive gear 3 to rotate. The drive gear 3 meshes with the first driven gear 4, causing them to rotate synchronously. The first driven gear 4 drives the second driven gear 7 and the third driven gear 8 to rotate via the drive shaft 5, thereby enabling the second driven gear 7 to drive the external grinding machine to start production via the gear belt 10. Simultaneously, the third driven gear 8 meshes with the fourth driven gear 112, causing them to rotate synchronously. The fourth driven gear 112 drives the baffle 115 to rotate via the rotating shaft 113. Due to the structural design of the baffle 115, when it rotates to the point where the top arc-shaped through hole connects with the fixed box 111... When the internal water outlets overlap, the water source flows into the fixed pipe 116 through the arc-shaped through hole, and then is diverted to the connecting pipes 118 on both sides through the diversion pipe 117, finally flowing into the fixing member 119. Under the guidance of the inner cavity of the fixing member 119, the water flows out to cool the gear belt 10, effectively avoiding the risk of the gear belt 10 breaking due to excessive temperature caused by long-term high-speed rotation. While cleaning the dust on the surface of the gear belt 10, the brush 120 can evenly brush the water source on its surface, greatly improving the heat dissipation effect and cooling uniformity. When the baffle 115 continues to rotate, the arc-shaped through hole and the water outlet are misaligned, which will block the water flow and form a circulating water control mechanism. This allows the heat dissipation device 11 to adjust the water flow frequency synchronously with the speed of the drive motor 2, achieving dynamic adaptation of "the higher the speed, the more timely the cooling", fundamentally reducing the water waste caused by continuous water flow. In addition, the user can rotate the knob 122 to drive the valve plate 123. Rotation allows for flexible adjustment of water flow rate or even complete blocking of water flow, thoroughly solving the problem of water leakage when the device is shut down. This not only saves water resources and reduces equipment maintenance costs, but also significantly extends the service life of vulnerable parts such as gear belts, further improving the safety and economy of equipment operation.

[0046] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A speed reducer for grinding, characterized in that, include: Gearbox housing (1); The drive motor (2) is fixedly installed on one side of the reducer housing (1) by bolts. A controller (21) is fixedly installed on one side of the drive motor (2), and the output end of the drive motor (2) is fixedly connected to the drive gear (3). The drive shaft (5) is connected to the inside side of the drive motor (2) via a bearing. A first driven gear (4) is snapped into the middle of one end of the drive shaft (5), and a second driven gear (7) and a third driven gear (8) are snapped into the two ends of the drive shaft (5) respectively. A gear belt (10) is snapped into the outer arc surface of the second driven gear (7). A heat dissipation device (11) is provided on one side of the reducer housing (1). The heat dissipation device (11) includes a fixed box (111). The fixed box (111) is fixedly installed on one side of the reducer housing (1). A water inlet (121) is provided on one side of the fixed box (111). A water outlet is provided inside the fixed box (111). A fixed pipe (116) is fixedly connected to the bottom end of the water outlet. A diversion pipe (117) is fixedly connected to the other end of the fixed pipe (116). A connecting pipe (118) is connected to the water outlets on both sides of the diversion pipe (117). A fixing member (119) is fixedly connected to the other end of the two connecting pipes (118).

2. The speed reducer for grinding according to claim 1, characterized in that, The bottom end of the reducer housing (1) is fixedly installed with a mounting base (9). The mounting base (9) is rotatably connected to the drive shaft (5) through the first bearing (6). One side of the driving gear (3) is meshed with the first driven gear (4). The inner side of the gear belt (10) is provided with a gear groove, and the gear groove is adapted to the second driven gear (7).

3. The speed reducer for grinding according to claim 1, characterized in that, The fixed box (111) is provided with a rotating shaft (113). The top end of the rotating shaft (113) is rotatably connected to the fixed box (111) through a second bearing (114). A fourth driven gear (112) is snapped onto the upper arc surface of the rotating shaft (113). One side of the fourth driven gear (112) is meshed with a third driven gear (8). A baffle (115) is fixedly connected to the bottom end of the rotating shaft (113). The bottom end of the baffle (115) is in contact with the inner bottom surface of the fourth driven gear (112), and an arc-shaped through hole is opened at the top end of the baffle (115).

4. The speed reducer for grinding according to claim 3, characterized in that, A valve plate (123) is provided inside the fixed tube (116). A knob (122) is fixedly connected to one side of the valve plate (123). A positioning block is provided on one side of the fourth driven gear (112) and the fixed tube (116). The valve plate (123) is adapted to the internal dimensions of the fixed tube (116).

5. The speed reducer for grinding according to claim 1, characterized in that, The two fixing members (119) are symmetrically fixed on both sides of the mounting base (9). The top of the fixing member (119) is provided with an inner cavity, and a water outlet is provided on one side of the inner cavity. The bottom edge of the inner cavity is an inclined surface.

6. The speed reducer for grinding according to claim 5, characterized in that, Multiple brushes (120) are fixedly installed on one side of the two fasteners (119), and one end of the brushes (120) is in contact with the outer surface of the gear belt (10).