A twin-screw reducer housing with an integrated cooling circulation channel

Abstract

This utility model relates to a twin-screw reducer housing with an integrated cooling circulation channel, comprising a left housing, a main housing, and a right housing connected sequentially from left to right. A cooling assembly is disposed on the main housing, including a left cooling cavity on the left housing and a right cooling cavity on the right housing. Several cooling channels are disposed on the main housing. A first circulation pipe is disposed on the left housing, and a second circulation pipe is disposed on the right housing. This twin-screw reducer housing with an integrated cooling circulation channel constructs a closed, efficient, and active circulation cooling system by integrating interconnected cooling cavities and cooling channels on the main housing, left housing, and right housing. Driven by a circulation pump, the coolant flows through the cooling channels of the main housing, covering the core heat-generating area, directly and efficiently removing the large amount of heat generated by the gears and bearings inside the reducer.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically to a twin-screw speed reducer housing with an integrated cooling circulation channel. 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, 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. As an important power transmission device, the twin-screw speed reducer is widely used in industrial machinery, heavy equipment, and automation systems.

[0003] When operating under high load and high speed conditions, the internal gear meshing and bearing friction will generate a lot of heat. If the heat cannot be dissipated in time, the reducer temperature will rise, affecting the lubrication effect, accelerating the wear of parts, and thus reducing the service life and operational reliability of the equipment.

[0004] Currently, traditional gear reducer cooling methods mainly rely on external heat sinks for natural cooling or forced air cooling by adding fans. However, these methods have limited cooling effects. The cooling effect of external heat sinks for natural cooling or forced air cooling by adding fans largely depends on the temperature difference between the gear reducer surface and the ambient air. In high-temperature environments, this temperature difference is drastically reduced, leading to a decrease in cooling or even failure.

[0005] Therefore, a twin-screw reducer housing with an integrated cooling circulation channel is proposed to solve the aforementioned technical problem of poor cooling effect. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a twin-screw reducer housing with an integrated cooling circulation channel, which has the advantage of good cooling effect and solves the problem of poor cooling effect in high-temperature environments.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a twin-screw reducer housing with an integrated cooling circulation channel, comprising a left housing, a main housing, and a right housing connected sequentially from left to right, wherein a cooling assembly is provided on the main housing; The cooling assembly includes a left cooling cavity on the left housing, a right cooling cavity on the right housing, a plurality of cooling channels on the main housing, a first circulation pipe on the left housing, and a second circulation pipe on the right housing.

[0008] Furthermore, the first circulation pipe is connected to the left cooling chamber, the second circulation pipe is connected to the right cooling chamber, the first circulation pipe is connected to the output end of the external circulation pump, and the second circulation pipe is connected to the input end of the external circulation pump.

[0009] Furthermore, the cooling channel has a circular cross-sectional shape, and several cooling channels are arranged in a circumferential array on the main housing.

[0010] Furthermore, the inner wall of the cooling channel is provided with several baffles, which are staggered on the inner wall of the cooling channel to slow down the flow rate of the coolant. The interior of the left cooling chamber and the right cooling chamber are both provided with grid plates.

[0011] Furthermore, two sets of guide members are symmetrically arranged on the main housing, and the guide members are provided with a first air duct and a second air duct.

[0012] Furthermore, the material of the guide component includes, but is not limited to, any one of copper, aluminum, and aluminum alloy, and the first air duct is parallel to the second air duct.

[0013] Furthermore, the longitudinal cross-sectional shape of the first air duct is circular, and the longitudinal cross-sectional shape of the second air duct is an irregular polygon.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The integrated cooling circulation channel of the twin-screw reducer housing, through the integrated design of interconnected cooling chambers and cooling channels on the main housing, left housing, and right housing, constructs a closed and efficient active circulation cooling system. Driven by the circulation pump, the coolant flows through the cooling channel of the main housing covering the core heat-generating area, directly and efficiently removing the large amount of heat generated by the gears and bearings inside the reducer. The active liquid cooling method fundamentally overcomes the heat dissipation bottleneck caused by the narrowing temperature difference in traditional air cooling under high-temperature environments. It has high cooling efficiency and can significantly reduce the operating temperature of the reducer under high-temperature and high-load conditions, thereby ensuring lubrication effect and extending the service life of the equipment.

[0015] 2. The integrated cooling circulation channel of the twin-screw reducer housing features staggered baffles that effectively disturb the coolant flow, slow down the flow rate, increase heat exchange time, and improve the cooling efficiency of a single cycle. The grid plates in the left and right cooling chambers help stabilize the flow field, making the coolant distribution more uniform and avoiding local overheating. The circumferentially arrayed cooling channel layout ensures that the heated parts of the main housing can obtain uniform cooling from all directions without dead zones.

[0016] 3. The integrated cooling circulation channel of the twin-screw reducer housing, with guides and air ducts made of high thermal conductivity material added to the main housing, can complement the internal liquid cooling system and assist in air cooling under specific working conditions, thereby enhancing the overall cooling capacity and environmental adaptability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the structure of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the left shell and the main shell in this utility model; Figure 4 This is a schematic diagram of the structure of the left shell in this utility model; Figure 5 This is a schematic diagram of the disassembled structure of the right shell and the main shell in this utility model; Figure 6 This is a schematic diagram of the right shell structure in this utility model; Figure 7 This is a top view of the connection structure between the cooling channel and the baffle plate in this utility model.

[0018] In the diagram: 100, left shell; 200, main shell; 300, right shell; 400, cooling assembly; 401, left cooling chamber; 402, right cooling chamber; 403, cooling channel; 404, first circulation pipe; 405, second circulation pipe; 406, baffle plate; 407, grille plate; 21, guide; 22, first air duct; 23, second air duct. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1-7 The housing of a twin-screw reducer with an integrated cooling circulation channel in this embodiment includes a left housing 100, a main housing 200 and a right housing 300 connected sequentially from left to right, and a cooling assembly 400 is provided on the main housing 200. It should be noted that twin-screw reducers are common devices in the prior art, and the left housing 100, main housing 200 and right housing 300 in this application are common components in twin-screw reducer housings, which will not be described in detail in this application.

[0021] The cooling assembly 400 includes a left cooling cavity 401 formed on the left housing 100, a right cooling cavity 402 formed on the right housing 300, a plurality of cooling channels 403 formed on the main housing 200, a first circulation pipe 404 formed on the left housing 100, and a second circulation pipe 405 formed on the right housing 300.

[0022] Specifically, the cross-sectional shape of the cooling channel 403 is circular, and several cooling channels 403 are arranged in a circumferential array on the main housing 200.

[0023] Understandably, the cooling channels 403 are arranged in a circumferential array on the main housing 200, which means that the cooling channels can cover the core heat-generating area of ​​the reducer in all directions without dead angles. This layout ensures that heat can be uniformly and quickly transferred to the coolant, avoiding the local overheating problem that may occur in traditional cooling methods, thereby significantly improving the overall heat dissipation efficiency and uniformity.

[0024] The first circulation pipe 404 is connected to the left cooling chamber 401, and the second circulation pipe 405 is connected to the right cooling chamber 402. The first circulation pipe 404 is connected to the output end of the external circulation pump, and the second circulation pipe 405 is connected to the input end of the external circulation pump.

[0025] It should be noted that designing the cross-sectional shape of the cooling channel 403 as a circle is one of the optimal choices in fluid mechanics. A circular channel has the least resistance to the fluid, which can effectively reduce the pressure loss of the coolant during circulation, thereby improving flow efficiency and obtaining a larger flow rate under the same pump power. At the same time, from the perspective of structural mechanics, circular holes can better disperse stress and reduce stress concentration caused by openings in the shell, which helps to maintain the overall structural strength and rigidity of the main shell 200.

[0026] When the twin-screw reducer starts working and generates heat, the circulation pump connected to the external first circulation pipe 404 and the second circulation pipe 405 is started. The circulation pump pumps the external coolant out and injects it into the left cooling chamber 401 through the first circulation pipe 404. Thus, a forced active cooling circulation loop starts to run. After the coolant is collected and buffered in the left cooling chamber 401, it will flow evenly into the multiple cooling channels 403 distributed in a circumferential array on the main housing 200. These cooling channels 403 directly penetrate the core area where the heat of the reducer is most concentrated. When the coolant flows through these channels, it will have efficient heat exchange with the high temperature housing wall, thereby continuously carrying away the heat generated by the internal components of the reducer. After completing the heat absorption process within the main casing 200, the heated coolant flows out from the other end of the cooling channel 403 and enters the right cooling chamber 402 for collection. Finally, the hot coolant is pumped back to the external circulation pump through the second circulation pipe 405, thus forming a complete and closed circulation path. The returned hot coolant can be cooled in external cooling devices such as radiators or cooling towers, and after cooling down, it is pumped back into the system to achieve continuous cooling. Example

[0027] The basic content is the same as in Example 1, except that: Please see Figure 4-7 In this embodiment, the inner wall of the cooling channel 403 is provided with a plurality of flow baffles 406. The plurality of flow baffles 406 are staggered on the inner wall of the cooling channel 403 to slow down the flow rate of the coolant. The interior of the left cooling chamber 401 and the right cooling chamber 402 are both provided with a grid plate 407.

[0028] When applied, as the coolant flows through the cooling channel 403 on the main housing 200 under the drive of the circulating pump, the baffles 406 distributed in a staggered manner on the inner wall of the channel will continuously disturb and block the flow of the liquid, thereby physically slowing down the flow rate of the coolant and effectively increasing the residence time of the coolant in the high-temperature channel, so that the coolant has more time to absorb and carry away heat in each cycle. The staggered baffles 406 effectively disrupt the thermally insulating laminar boundary layer that adheres closely to the pipe wall, forcing the liquid to generate vortices and turbulence. The liquid mixing in the turbulent state is more intense, continuously stirring the low-temperature liquid in the core area to the pipe wall, while bringing the heat-absorbing liquid into the core flow, greatly enhancing the heat transfer efficiency. The grid plate 407 can sort and disperse the potentially turbulent liquid flow from the first circulation pipe 404, allowing it to enter each cooling channel 403 more evenly, ensuring balanced flow in all channels and avoiding uneven cooling in some channels. Similarly, in the right cooling chamber 402, the grid plate 407 can smoothly channel the liquid flowing out of the cooling channel 403 to the second circulation pipe 405, reducing vortices and pressure fluctuations. Example

[0029] The basic content is the same as in Example 1, except that: Please see Figure 3 In this embodiment, two sets of guide members 21 are symmetrically arranged on the main housing 200. The guide members 21 have a first air duct 22 and a second air duct 23.

[0030] The material of the guide component 21 includes, but is not limited to, any one of copper, aluminum, or aluminum alloy. The first air duct 22 and the second air duct 23 are parallel.

[0031] It is understandable that the guide members 21 symmetrically arranged on the main housing 200 are made of copper, aluminum or aluminum alloy, and have excellent thermal conductivity. They can quickly absorb the residual heat in the main housing 200 that has not been completely removed by the cooling channel 403, as well as the heat radiated or conducted to the housing from the external environment. This heat is then conducted through the solid structure of the guide member 21 to the walls of the first air duct 22 and the second air duct 23. When the reducer is working, its own operation or the external environment will bring a certain amount of airflow. When the air flows through these air ducts, it will exchange heat with the walls of the first air duct 22 and the second air duct 23, continuously carrying away the heat on the guide member 21, thereby achieving auxiliary cooling of the main housing 200.

[0032] The longitudinal cross-section of the first air duct 22 is circular, and the longitudinal cross-section of the second air duct 23 is an irregular polygon.

[0033] It should be noted that the first air duct 22 with a circular cross-section has the characteristics of low flow resistance and strong flow capacity, which is conducive to forming a stable and smooth mainstream air and realizing basic high-efficiency convective heat transfer. The second air duct 23 with an irregular polygonal cross section generates more air vortices and disturbances at the corners, effectively disrupting the laminar boundary layer of the air and enhancing the mixing and heat exchange intensity between the airflow and the duct wall.

[0034] In summary, the working principle of the twin-screw reducer housing with the integrated cooling circulation channel is as follows: When the twin-screw reducer starts working and generates heat, the external circulation pump connected to the first circulation pipe 404 and the second circulation pipe 405 is activated. The circulation pump pumps out coolant, which is injected into the left cooling chamber 401 through the first circulation pipe 404. After being evenly distributed by the grille plate 407, the coolant enters the multiple cooling channels 403 arranged in a circumferential array on the main housing 200. These channels directly penetrate the core area where the reducer heats up the most. During the flow, the coolant undergoes efficient heat exchange with the high-temperature housing, directly carrying away the heat generated by the internal gears and bearings. The cooled coolant, after absorbing heat, flows into the right cooling chamber 402 and finally returns to the circulation pump through the second circulation pipe 405, forming a complete closed forced circulation. This active liquid cooling method fundamentally overcomes the heat dissipation bottleneck of traditional air cooling in high-temperature environments.

[0035] Within the cooling channels 403, staggered baffles 406 disturb the liquid flow, slowing down the flow rate to extend the heat exchange time and disrupting the laminar boundary layer, thus inducing turbulence and significantly enhancing heat transfer efficiency. In the left and right cooling chambers 401 and 402, grid plates 407 serve to equalize, stabilize, and support the flow, ensuring uniform distribution of coolant to all cooling channels 403, preventing uneven flow and localized overheating, while also reducing eddies and maintaining stable system pressure. The guide members 21, symmetrically arranged on the main housing 200, are made of copper, aluminum, or aluminum alloy, possessing excellent thermal conductivity. They quickly absorb residual heat within the main housing 200 that has not been completely removed by the cooling channels 403, as well as heat radiated or conducted from the external environment. This heat is then conducted through the solid structure of the guide members 21 to the first air duct 22 and the second air duct 23. When the reducer is working, its own operation or the external environment will bring a certain amount of airflow. When the air flows through these air ducts, it will exchange heat with the walls of the first air duct 22 and the second air duct 23, continuously carrying away the heat on the guide member 21, thereby achieving auxiliary cooling of the main housing 200.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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.

Claims

1. A twin-screw reducer housing with an integrated cooling circulation channel, characterized in that: It includes a left housing (100), a main housing (200) and a right housing (300) connected from left to right, and a cooling assembly (400) is provided on the main housing (200). The cooling assembly (400) includes a left cooling cavity (401) opened on the left housing (100), a right cooling cavity (402) opened on the right housing (300), a plurality of cooling channels (403) opened on the main housing (200), a first circulation pipe (404) provided on the left housing (100), and a second circulation pipe (405) provided on the right housing (300).

2. The twin-screw reducer housing with an integrated cooling circulation channel according to claim 1, characterized in that: The first circulation pipe (404) is connected to the left cooling chamber (401), the second circulation pipe (405) is connected to the right cooling chamber (402), the first circulation pipe (404) is connected to the output end of the external circulation pump, and the second circulation pipe (405) is connected to the input end of the external circulation pump.

3. The twin-screw reducer housing with an integrated cooling circulation channel according to claim 1, characterized in that: The cooling channel (403) has a circular cross-sectional shape, and several cooling channels (403) are arranged in a circumferential array on the main housing (200).

4. The twin-screw reducer housing with an integrated cooling circulation channel according to claim 1, characterized in that: The inner wall of the cooling channel (403) is provided with a plurality of flow baffles (406), which are staggered on the inner wall of the cooling channel (403) to slow down the flow rate of the coolant. The interior of the left cooling chamber (401) and the right cooling chamber (402) are both provided with a grid plate (407).

5. The twin-screw reducer housing with an integrated cooling circulation channel according to claim 1, characterized in that: Two sets of guide members (21) are symmetrically arranged on the main housing (200). A first air duct (22) is opened on the guide member (21), and a second air duct (23) is opened on the guide member (21).

6. The twin-screw reducer housing with an integrated cooling circulation channel according to claim 5, characterized in that: The material of the guide (21) includes, but is not limited to, any one of copper, aluminum, and aluminum alloy, and the first air duct (22) and the second air duct (23) are parallel.

7. The twin-screw reducer housing with an integrated cooling circulation channel according to claim 5, characterized in that: The longitudinal cross-section of the first air duct (22) is circular, and the longitudinal cross-section of the second air duct (23) is an irregular polygon.

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