A circulating heat sink case for lubricating a speed reducer
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU NAIQIANG TRANSMISSION MASCH CO LTD
- Filing Date
- 2025-11-06
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]现有用于润滑减速机的循环散热箱体在使用时存在不足之处,一是其大都为采用外置循环散热结构的散热箱体,占用体积较大;二是其不能循环散热效果不够理想
1、本实用新型采用内置循环散热方式,整体设计更为紧凑,节省空间;载块上板部外侧均布散热翅片,下板部内部开设散热油路,且散热油路由纵向油道、横向油道和堵塞构成,增加了油液流动路径和散热面积,能有效带走热量,提升散热效果。载块通过焊接与上矩形端板连为一体,且上矩形端板内部开设与载块形状配合的矩形台阶槽,载块上板部规格大于下板部规格,下板部规格小于箱身内腔横截面规格,使各部件连接紧密、布局合理。
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Figure CN224606978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducer manufacturing technology, and in particular to a circulating heat dissipation box for lubricating speed reducers. Background Technology
[0002] The use of a circulating cooling system in a lubricated reducer significantly improves the equipment's operating efficiency and reliability. By continuously circulating lubricating oil, this system rapidly removes heat generated by internal friction, preventing localized overheating that could lead to decreased lubrication performance or component deformation. Circulating cooling not only maintains stable oil temperature and extends lubricating oil lifespan but also effectively prevents oil oxidation and deterioration caused by high temperatures, reducing carbon deposits and sludge formation. Uniform heat distribution reduces thermal stress on gears and bearings, allowing transmission components to operate at optimal temperatures, thereby reducing wear and extending the overall lifespan of the equipment. Furthermore, circulating cooling achieves efficient heat exchange through external coolers or heat exchangers, making it more adaptable to high-load or fluctuating ambient temperatures compared to static cooling methods. This active temperature control method also utilizes the cleaning effect of oil flow to remove wear particles, improving system reliability and ultimately achieving the dual benefits of energy saving, reduced consumption, and lower maintenance costs.
[0003] Existing circulating cooling housings for lubrication speed reducers have shortcomings in use. Firstly, most of them employ external circulating cooling structures, resulting in a large footprint. Secondly, their cooling effect is not ideal due to the lack of circulating cooling. Therefore, it is necessary to optimize and improve existing circulating cooling housings for lubrication speed reducers. Summary of the Invention
[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technology and provide a circulating heat dissipation housing for lubricating speed reducers.
[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A circulating heat dissipation housing for a lubricating speed reducer includes a housing body, a lower rectangular end plate, fasteners, an upper rectangular end plate, a carrier block, heat dissipation fins, a gear pump housing, a driving pump gear, a driven pump gear, a suction pipe, a discharge pipe, and a return pipe. The lower rectangular end plate is mounted on the upper end of the housing body, and the upper rectangular end plate is mounted to the lower rectangular end plate by fasteners. A carrier block is embedded and fixed in the upper rectangular end plate. The carrier block consists of an upper plate and a lower plate. A plurality of heat dissipation fins are evenly distributed on the outer side of the upper plate. The lower plate... The internal structure of the unit is provided with a cooling oil passage consisting of two longitudinal oil passages, multiple transverse oil passages, and multiple plugs. The gear pump housing is fixed inside the housing. The gear pump housing is equipped with meshing active pump teeth and driven pump teeth. The active pump teeth are sleeved on the outside of the drive shaft built into the housing and engage with it. The suction end of the gear pump housing is equipped with a suction pipe. The output end of the gear pump housing is connected to one end of the cooling oil passage via a drain pipe. The other end of the cooling oil passage is equipped with a return pipe.
[0006] Furthermore, in the aforementioned circulating heat dissipation box for lubricating the speed reducer, a plurality of first fastening holes are evenly provided on the lower rectangular end plate, and a plurality of second fastening holes are evenly provided on the upper rectangular end plate.
[0007] Furthermore, in the aforementioned circulating heat dissipation box for lubricating the reducer, the interior of the upper rectangular end plate is provided with a rectangular stepped groove that matches the shape of the carrier block. The upper plate portion of the carrier block has a larger specification than the lower plate portion, and the lower plate portion has a smaller specification than the cross-sectional specification of the inner cavity of the box body.
[0008] Furthermore, in the aforementioned circulating heat dissipation box for lubricating the reducer, the carrier block is integrally connected to the upper rectangular end plate by welding.
[0009] Furthermore, in the aforementioned circulating heat dissipation housing for lubricating the speed reducer, the carrier block is made of aluminum alloy.
[0010] Furthermore, in the aforementioned circulating cooling box for lubricating the speed reducer, the longitudinal oil passage and the transverse oil passage are vertically connected, and each end of the longitudinal oil passage and the transverse oil passage is provided with an internal thread groove, and the plug is provided with an external thread post that mates with the internal thread groove.
[0011] Furthermore, in the aforementioned circulating heat dissipation housing for lubricating the reducer, a bushing is embedded in the side plate of the housing body to facilitate the passage of the input shaft or output shaft.
[0012] Furthermore, in the aforementioned circulating cooling housing for lubricating the reducer, the suction port of the suction pipe is close to the bottom end of the housing cavity, and the return port of the return pipe is close to the top end of the housing cavity.
[0013] The beneficial effects of this utility model are: 1. This utility model adopts a built-in circulating heat dissipation method, resulting in a more compact overall design and saving space. Heat dissipation fins are evenly distributed on the outer side of the upper plate of the carrier block, while a heat dissipation oil passage is opened inside the lower plate. This oil passage consists of longitudinal oil channels, transverse oil channels, and blockages, increasing the oil flow path and heat dissipation area, effectively removing heat and improving the heat dissipation effect. The carrier block is welded to the upper rectangular end plate, and a rectangular stepped groove matching the shape of the carrier block is opened inside the upper rectangular end plate. The upper plate of the carrier block is larger than the lower plate, and the lower plate is smaller than the cross-sectional dimensions of the inner cavity of the housing, ensuring tight connection and a reasonable layout of all components.
[0014] 2. This utility model features internally threaded grooves at both ends of the longitudinal and transverse oil passages, and externally threaded posts on the plugs. The plugs can be easily installed and removed via threaded engagement, facilitating cleaning and maintenance of the cooling oil circuit. The suction port of the suction pipe is located near the bottom of the tank's inner cavity, while the return port of the return pipe is located near the top of the tank's inner cavity, promoting full oil circulation and removing more heat.
[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.
[0017] Figure 1 This is a front view schematic diagram of the entire utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is an exploded view of the overall structure of this utility model; Figure 4 This is a structural diagram of the present invention with the box body and rectangular end plate omitted. Figure 5 This is a schematic diagram of the external structure of the carrier block in this utility model; Figure 6 This is a schematic diagram of the internal structure of the carrier block in this utility model; In the attached diagram, the components represented by each number are as follows: 1-Box body, 2-Lower rectangular end plate, 3-Fastener, 4-Upper rectangular end plate, 5-Carrier block, 501-Upper plate, 502-Lower plate, 503-Longitudinal oil passage, 504-Transverse oil passage, 6-Heat dissipation fins, 7-Block, 8-Gear pump housing, 9-Driven pump gear, 10-Driven pump gear, 11-Suction pipe, 12-Drain pipe, 13-Return pipe. Detailed Implementation
[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] like Figures 1-6 As shown, this embodiment provides a circulating heat dissipation housing for a lubricating speed reducer, including a housing body 1, a lower rectangular end plate 2, fasteners 3, an upper rectangular end plate 4, a carrier block 5, heat dissipation fins 6, a gear pump housing 8, a driving pump gear 9, a driven pump gear 10, a suction pipe 11, a drain pipe 12, and a return pipe 13. The lower rectangular end plate 2 is installed at the upper end of the housing body 1, and the upper rectangular end plate 4 is installed on the lower rectangular end plate 2 by fasteners 3. The carrier block 5 is embedded and fixed in the upper rectangular end plate 4.
[0020] In this embodiment, the carrier block 5 is composed of an upper plate 501 and a lower plate 502. The outer side of the upper plate 501 is evenly distributed with a number of heat dissipation fins 6, and the interior of the lower plate 502 is provided with a heat dissipation oil passage composed of two longitudinal oil passages 503, a number of transverse oil passages 504 and a number of plugs 7.
[0021] In this embodiment, the gear pump housing 8 is fixed inside the housing 1. The gear pump housing 8 is equipped with a driving pump tooth 9 and a driven pump tooth 10 that mesh with each other. The driving pump tooth 9 is sleeved on the outside of the transmission shaft built into the housing 1 and engages with it. The suction end of the gear pump housing 8 is equipped with a suction pipe 11. The output end of the gear pump housing 8 is connected to one end of the cooling oil circuit through the drain pipe 12. The other end of the cooling oil circuit is equipped with a return pipe 13.
[0022] In this embodiment, a plurality of first fastening holes are evenly provided on the lower rectangular end plate 2, and a plurality of second fastening holes are evenly provided on the upper rectangular end plate 4.
[0023] In this embodiment, the upper rectangular end plate 4 has a rectangular stepped groove inside that matches the shape of the carrier block 5. The upper plate portion 501 of the carrier block 5 has a larger specification than the lower plate portion 502, and the lower plate portion 502 has a smaller specification than the cross-sectional specification of the inner cavity of the box body 1.
[0024] In this embodiment, the carrier block 5 is integrally connected to the upper rectangular end plate 4 by welding. The carrier block 5 is made of aluminum alloy.
[0025] In this embodiment, the longitudinal oil passage 503 and the transverse oil passage 504 are vertically connected. Each end of the longitudinal oil passage 503 and the transverse oil passage 504 is provided with an internal thread groove, and the plug 7 is provided with an external thread post that mates with the internal thread groove.
[0026] In this embodiment, a bushing 14 is embedded in the side plate of the housing 1 to facilitate the passage of the input or output shaft.
[0027] In this embodiment, the suction port of the suction tube 11 is close to the bottom end of the inner cavity of the box body 1, and the return port of the return tube 13 is close to the top end of the inner cavity of the box body 1.
[0028] One specific application of this embodiment is: Drive active pump teeth: The drive shaft built into the housing rotates, driving the active pump teeth that are sleeved on its outside and interlocked with each other to rotate.
[0029] Oil circulation: The active pump teeth and the driven pump teeth mesh with each other and rotate inside the gear pump housing. The lubricating oil is drawn from the bottom of the inner cavity of the housing through the suction pipe and then transported to one end of the heat dissipation oil passage at the lower plate of the carrier block through the drain pipe.
[0030] Heat dissipation process: The oil flows in the heat dissipation oil circuit, and the flow path is increased by the longitudinal oil channel and the transverse oil channel. At the same time, the heat dissipation fins on the upper plate increase the heat dissipation area and dissipate the heat in the oil.
[0031] Oil return: After cooling, the oil flows from the other end of the heat dissipation oil circuit back to the top of the inner cavity of the gearbox through the return pipe, completing one cycle. This cycle continues to run, thus achieving the function of lubricating and cooling the reducer.
[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A circulating heat dissipation housing for lubricating a speed reducer, characterized in that, The device includes a housing, a lower rectangular end plate, fasteners, an upper rectangular end plate, a carrier block, heat dissipation fins, a gear pump housing, a driving pump tooth, a driven pump tooth, a suction pipe, a drain pipe, and a return pipe. The lower rectangular end plate is installed on the upper end of the housing, and the upper rectangular end plate is installed on the lower rectangular end plate by fasteners. A carrier block is embedded and fixed in the upper rectangular end plate. The carrier block consists of an upper plate and a lower plate. Several heat dissipation fins are evenly distributed on the outer side of the upper plate. The lower plate has a heat dissipation oil passage consisting of two longitudinal oil passages, multiple transverse oil passages, and multiple blockages inside. The gear pump housing is fixed inside the housing. The gear pump housing has meshing driving and driven pump teeth installed inside. The driving pump tooth is sleeved on the outside of the drive shaft built into the housing and engages with it. A suction pipe is installed at the suction end of the gear pump housing. The output end of the gear pump housing is connected to one end of the heat dissipation oil passage through the drain pipe. A return pipe is installed at the other end of the heat dissipation oil passage.
2. The circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The lower rectangular end plate is provided with a plurality of first fastening holes evenly spaced, and the upper rectangular end plate is provided with a plurality of second fastening holes evenly spaced.
3. A circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The upper rectangular end plate has a rectangular stepped groove inside that matches the shape of the carrier block. The upper plate of the carrier block has a larger specification than the lower plate, and the lower plate has a smaller specification than the cross-sectional specification of the inner cavity of the box.
4. A circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The carrier block is welded to the upper rectangular end plate.
5. A circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The carrier block is made of aluminum alloy.
6. A circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The longitudinal oil passage and the transverse oil passage are vertically connected. Each end of the longitudinal oil passage and the transverse oil passage is provided with an internal threaded groove. The plug is provided with an external threaded post that mates with the internal threaded groove.
7. A circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The side panel of the housing is fitted with a bushing that allows the input or output shaft to pass through.
8. A circulating heat dissipation housing for a lubricating reducer according to claim 1, characterized in that, The suction port of the suction tube is located near the bottom of the inner cavity of the box, and the return port of the return tube is located near the top of the inner cavity of the box.