WO2022021484A1 - 一种变速箱壳体 - Google Patents

一种变速箱壳体 Download PDF

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Publication number
WO2022021484A1
WO2022021484A1 PCT/CN2020/109212 CN2020109212W WO2022021484A1 WO 2022021484 A1 WO2022021484 A1 WO 2022021484A1 CN 2020109212 W CN2020109212 W CN 2020109212W WO 2022021484 A1 WO2022021484 A1 WO 2022021484A1
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WO
WIPO (PCT)
Prior art keywords
cooling liquid
guide ribs
tank
liquid
transmission case
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PCT/CN2020/109212
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English (en)
French (fr)
Inventor
李建文
杨旭东
曾宪文
李家琪
Original Assignee
精进电动科技股份有限公司
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Application filed by 精进电动科技股份有限公司 filed Critical 精进电动科技股份有限公司
Priority to US18/005,125 priority Critical patent/US20230258261A1/en
Priority to JP2023505803A priority patent/JP2023535804A/ja
Priority to EP20947301.6A priority patent/EP4160051A4/en
Publication of WO2022021484A1 publication Critical patent/WO2022021484A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0417—Heat exchangers adapted or integrated in the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
    • F16H57/0452—Oil pans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions

Definitions

  • the invention belongs to the technical field of gearbox structures, and particularly relates to a gearbox casing.
  • the traditional liquid-cooled heat dissipation structure of the transmission case has shortcomings such as small heat dissipation area and the existence of a cooling liquid blind area, resulting in a low heat exchange rate between the transmission case and the cooling liquid, and poor heat dissipation performance. To a certain extent, it will cause damage to the gearbox casing and internal running parts, affecting the transmission performance and service life of the gearbox system.
  • the present invention discloses a gearbox housing to overcome the above problems or at least partially solve the above problems.
  • the invention discloses a transmission case.
  • the bottom or side of the transmission case is provided with a plurality of first cooling liquid grooves, and the transmission case on the upper side of the bottom of the first cooling liquid groove is provided with lubrication liquid, the first cooling liquid tank is used for cooling the lubricating liquid;
  • the first cooling liquid tank is provided with a plurality of parallel partition walls, and the first cooling liquid tank is divided into at least two connected sub-tanks by the partition walls.
  • a plurality of interlaced first fixed guide ribs are respectively protruded from the inner wall of the first cooling liquid tank, thereby forming a continuous S-shaped or labyrinth-shaped channel for the cooling liquid to circulate;
  • the first cooling liquid tank is provided with a first liquid inlet and a first liquid outlet, and the first liquid inlet and the first liquid outlet are arranged at one end or two of the first cooling liquid tank. between two adjacent first fixed guide ribs and between the first fixed guide ribs and the first liquid inlet and/or between the first fixed guide ribs and the first liquid guide ribs An isolated first suspension guide rib is arranged between a liquid outlet.
  • first floating guide ribs are inclined relative to the first fixed guide ribs.
  • the depths of the bottom of the first cooling liquid tank on both sides of the first suspension guide ribs are different, so that the inner and outer sides of the bottom of the first cooling liquid tank are arranged in a wave shape, and the first cooling liquid tank bottom is arranged in waves.
  • the depth of the bottom of the coolant tank can be adjusted according to the position of the gears inside the gearbox housing.
  • annular groove is provided on the top of the four side walls of the first cooling liquid tank, and a sealing gasket is arranged in the annular groove for sealing the first cooling liquid tank.
  • a plurality of threaded holes are provided on the outside of the annular groove, and a first cover plate is also provided on the first coolant tank, and the first cover plate is fixed on the first cover plate through the threaded holes and screws. on the coolant tank; the first cover plate and the screw are set down, and when the first cover plate is fixed on the first coolant tank, the bottom of the gearbox casing is on a plane.
  • first liquid inlet is in communication with the cooling liquid channel inside the motor water jacket, or the first liquid inlet is connected with the outlet of the motor cooling liquid channel.
  • a second cooling liquid tank is also provided on the bottom or side end surface of the transmission case to cool the inside of the side of the transmission case; a second cover is provided on the second cooling liquid tank The two ends of the second cooling liquid tank are respectively provided with a second liquid inlet and a second liquid outlet, and the first liquid outlet and the second liquid inlet are connected.
  • a plurality of second fixed flow guide ribs are arranged in the second cooling liquid tank, and two adjacent second fixed flow guide ribs are respectively connected with two opposite inner walls of the second cooling liquid tank, Make the cooling liquid flow through a plurality of the second fixed guide ribs in a continuous S shape or a labyrinth shape, between two adjacent second fixed guide ribs and between the second fixed guide ribs and the second fixed guide ribs.
  • a second suspension guide rib is isolated between the second liquid inlet and/or between the second fixed guide rib and the second liquid outlet.
  • the second suspension guide rib between the second fixed guide rib and the second liquid inlet is inclined to the groove wall of the second cooling liquid tank, and the rest of the second suspension guide
  • the flow ribs are arranged in parallel with the second fixed flow guide ribs; the depths of the bottom of the second cooling liquid tank on both sides of the second suspension flow guide ribs are different, so that the inner side surface and the outer surface of the second cooling liquid tank bottom are different.
  • the sides are all arranged in a wave shape; the wave shape amplitude of the bottom of the second cooling liquid tank decreases in steps from the second liquid inlet to the second liquid outlet.
  • the second suspension deflector is a conical table, and the side surface of the conical table is composed of an arc surface and/or an inclined surface, so as to prevent the occurrence of eddy currents.
  • the lubricating liquid in the transmission case can be cooled, and the cooling liquid grooves are arranged to guide circulating cooling liquid
  • the suspending guide ribs and fixed guide ribs in the flow direction increase the heat dissipation contact area between the cooling liquid and the gearbox casing, and avoid the blind area where the cooling liquid does not flow or generates eddy currents; the gearbox casing of the present invention has high heat exchange efficiency , compared with other heat dissipation structures, the manufacturing cost is lower.
  • FIG. 1 is a partial structural diagram of a gearbox housing in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the transmission case A-A in one embodiment of the present invention.
  • the first coolant tank 2. The partition wall, 3. The first fixed guide rib, 4. The first liquid inlet, 5. The first liquid outlet, 6. The first suspension guide rib, 7. Annular groove, 8, threaded hole, 9, second coolant tank, 10, second liquid inlet, 11, second liquid outlet, 12, second fixed guide rib, 13, second suspension guide Fluid tendon.
  • An embodiment of the present invention discloses a transmission case. As shown in FIG. 1 , a plurality of first cooling liquid tanks 1 are arranged at the bottom or side of the transmission case, and the bottom of the first cooling liquid tank 1 is The upper side of the gearbox housing is provided with lubricating liquid, and the first cooling liquid tank 1 is in contact with the lubricating liquid, and the cooling liquid is passed into the first cooling liquid tank 1, so that one pair of the first cooling liquid tank can be realized.
  • the lubricating fluid cools, thereby reducing the temperature of the internal parts of the transmission housing.
  • the first cooling liquid tank 1 is provided with a plurality of parallel partition walls 2, and the first cooling liquid tank 1 is divided into at least two connected sub-tanks by the partition walls 2, and the number of the divided sub-tanks can be adjusted.
  • the partition walls 2 on both sides of the sub-slot or the inner wall of the first coolant tank 1 respectively protrude a plurality of first fixed guide ribs 3 staggered with each other, so as to form a A continuous S-shaped or labyrinth-shaped channel for the cooling liquid to circulate; the arrangement of the first fixed guide ribs 3 increases the flow path of the cooling liquid in the first cooling liquid tank 1, thereby increasing the cooling liquid and the first cooling liquid tank. 1
  • the contact area of the inner wall promotes heat exchange.
  • one end of the first fixed guide rib 3 is connected with the inner wall of the first cooling liquid tank 1 or the partition wall 2 at a certain angle, and the other end is connected with the inner wall or the partition wall 2 on the other side of the first cooling liquid tank 1 with a certain gap.
  • the angle and clearance can be adjusted according to the coolant flow path and flow.
  • the number and thickness of the first fixed guide ribs 3 can be adjusted according to the size of the sub-slot and the wall thickness of the gearbox casing.
  • the first cooling liquid tank 1 is provided with a first liquid inlet 4 and a first liquid outlet 5, and the first liquid inlet 4 and the first liquid outlet 5 are arranged in the first cooling liquid.
  • An isolated first suspension guide rib is provided between a fixed guide rib 3 and the first liquid inlet 4 and/or between the first fixed guide rib 3 and the first liquid outlet 5 6. It can prevent the dead zone of coolant flow and avoid eddy current.
  • the first fixed guide ribs 3 and the first floating guide ribs 6 are arranged to increase the heat dissipation area and improve the heat dissipation performance.
  • a plurality of cooling liquid grooves are provided at the bottom or side of the transmission case, so that the lubricating liquid in the transmission case can be cooled, and the cooling liquid in the cooling liquid groove can be cooled.
  • the suspension guide ribs and the fixed guide ribs are arranged to guide the flow direction of the circulating cooling liquid, which increases the heat dissipation contact area between the cooling liquid and the gearbox casing, and avoids the blind area where the cooling liquid does not flow or generates eddy currents; the gearbox casing of the present invention
  • the body heat exchange efficiency is high, and the manufacturing cost is low compared to other heat dissipation structures.
  • the first floating guide ribs 6 are arranged obliquely relative to the first fixed guide ribs 3 , thereby increasing the disturbance of the cooling liquid and facilitating the transfer of heat.
  • the first suspension guide rib 6 and the first fixed guide rib 3 are in a positional relationship at a certain angle, and both ends of the first suspension guide rib 6 have a certain gap with the inner walls on both sides of the first cooling liquid tank 1 or the partition wall 2 respectively.
  • the coolant flows through the gap, wherein the angle and gap can be adjusted according to the flow path and flow rate of the coolant.
  • the number and thickness of the first suspension guide ribs 6 can be adjusted according to the size of the sub-slot and the wall thickness of the gearbox casing.
  • the depths of the bottom of the first cooling liquid tank 1 on both sides of the first suspension guide ribs 6 are different, so that the inner surface of the bottom of the first cooling liquid tank 1 is and the outer side are arranged in a wave shape, and the depth of the bottom of the first coolant tank 1 can be adjusted according to the position of the internal gear of the gearbox casing.
  • the setting of this structure can effectively increase the first coolant tank 1 and the speed change.
  • the contact area of the lubricating fluid in the box shell can better dissipate heat.
  • the top of the four side walls of the first cooling liquid tank 1 is provided with an annular groove 7 , and a sealing gasket is arranged in the annular groove 7 for the first cooling Sealing of tank 1.
  • a plurality of threaded holes 8 are provided on the outer side of the annular groove 7 , and a first cover plate is also provided on the first cooling liquid tank 1 , and the first cover plate passes through
  • the threaded holes 8 and the screws are fixed on the first coolant tank 1, wherein the number and position of the threaded holes 8 can be adjusted as required; the first cover plate and the screws are set down, the When the first cover plate is fixed on the first coolant tank 1, the bottom of the transmission case is on a plane, thereby reducing the volume of the transmission case.
  • the first liquid inlet 4 may be provided on the end face where the gearbox casing and the motor casing are connected, and the first liquid inlet 4 and the motor water can be realized through a channel provided on the motor casing.
  • the coolant channels inside the jacket are connected, and the circulating coolant enters the first coolant tank 1 of the gearbox directly from the motor coolant channel through the first coolant inlet 4 provided on the gearbox casing at the joint surface.
  • a water nozzle can be provided at the first liquid inlet 4, and then the first liquid inlet 4 is connected to the outlet of the motor cooling liquid channel through a cooling liquid pipeline.
  • the circulating cooling liquid flows out from the outlet of the motor cooling liquid channel, and enters the first liquid inlet 4 arranged on the outer wall of the first cooling liquid tank 1 of the gearbox through the external cooling liquid pipeline, thereby entering the first cooling liquid tank 1 of the gearbox.
  • a second cooling liquid groove 9 is further provided on the bottom or side end surface of the transmission case, so as to realize the cooling of the inside of the transmission case, such as lubricating liquid.
  • the number of the second cooling liquid tank 9 can be multiple, which can be set according to the specific situation; the second cooling liquid tank 9 is provided with a second cover plate, the second cover plate and the second cooling liquid A sealing ring is provided between the grooves 9, and is fixed by screws and threaded holes, and the second cover plate is also set down.
  • Two ends of the second cooling liquid tank 9 are respectively provided with a second liquid inlet 10 and a second liquid outlet 11 , and the first liquid outlet 5 is connected to the second liquid inlet 10 .
  • the position of the second liquid outlet 11 is higher than that of the first liquid inlet 4, which facilitates better heat transfer between the coolant and the gearbox housing.
  • a plurality of second fixed flow guide ribs 12 are arranged in the second cooling liquid tank 9 , and two adjacent second fixed flow guide ribs 12 are respectively connected to the second fixed flow guide ribs 12 .
  • the two opposite inner walls of the two cooling liquid tanks 9 are connected, so that the cooling liquid flows in a continuous S shape or a labyrinth shape through the plurality of the second fixed guide ribs 12, and one end of the second fixed guide ribs 12 is connected to the second fixed guide ribs 12.
  • the inner walls of the second cooling liquid tank 9 are connected at a certain angle, and the other end and the inner wall of the other side of the second cooling liquid tank 9 are provided with a certain gap.
  • the coolant flow path and flow are adjusted.
  • the number and thickness of the second fixed guide ribs 12 can be adjusted according to the size and wall thickness of the gearbox casing.
  • a second suspension guide rib 13 is isolated between 12 and the second liquid outlet 11 , which can prevent the cooling liquid from flowing in a blind area and prevent eddy currents. Only the bottom of the second suspension guide rib 13 is connected to the bottom of the second cooling liquid tank 9.
  • the arrangement of the second fixed guide rib 12 and especially the second suspension guide rib 13 can be used to increase the heat dissipation area and avoid the Eddy currents appear in the runner to improve heat dissipation.
  • the second suspension guide ribs 13 between the second fixed guide ribs 12 and the second liquid inlet 10 are connected to
  • the groove wall of the second cooling liquid tank 9 is arranged obliquely, and the remaining second floating guide ribs 13 are arranged parallel to the second fixed guide ribs 12, which can effectively prevent the generation of eddy currents and make the cooling liquid flow smoothly from the first
  • the two fixed guide ribs 12 and the second suspension guide ribs 13 pass through; the depths of the bottoms of the second cooling liquid grooves 9 on both sides of the second suspension guide ribs 13 are different, so that the second cooling liquid grooves have different depths.
  • the inner and outer sides of the bottom of 9 are arranged in a wave shape, thereby increasing the contact area between the coolant and the lubricating liquid in the gearbox housing and the bottom of the second coolant tank 9 to promote heat dissipation, and the amplitude of the wave shape can be adjusted.
  • the wave-like amplitude at the bottom of the second cooling liquid tank 9 decreases in steps from the second liquid inlet 10 to the second liquid outlet 11 , which can avoid the dead zone of cooling liquid flow and increase the heat radiation.
  • the second suspension guide rib 13 is a conical frustum, and the side surface of the conical frustum is formed by an arc surface and/or an inclined surface to prevent eddy currents from occurring.
  • the second suspension diversion ribs 13 can also be other structures with excellent diversion effect.
  • the side surfaces of the second fixed air guide ribs 12 can also be formed of arc surfaces and/or inclined surfaces, and the same effect can be achieved.
  • the present invention discloses a transmission case.
  • the bottom or side of the transmission case is provided with a plurality of first cooling liquid grooves, and the transmission case on the upper side of the bottom of the first cooling liquid grooves is provided with lubricating liquid.
  • the first cooling liquid tank is used to cool the lubricating liquid;
  • the first cooling liquid tank is provided with a number of parallel partition walls, and the first cooling liquid tank is divided into at least two connected sub-tanks by the partition walls, and the two sides of the sub-tank are divided
  • the partition wall of the first cooling liquid tank or the inner wall of the first cooling liquid tank respectively protrudes a plurality of interlaced first fixed guide ribs, thereby forming a continuous S-shaped or labyrinth-shaped channel for the cooling liquid to circulate;
  • the first cooling liquid tank is provided with The first liquid inlet and the first liquid outlet, the first liquid inlet and the first liquid outlet are arranged at one end or both ends of the first cooling liquid tank;
  • the lubricating liquid in the transmission case can be cooled, and the cooling liquid grooves are arranged to guide circulating cooling liquid
  • the suspending guide ribs and fixed guide ribs in the flow direction increase the heat dissipation contact area between the cooling liquid and the gearbox casing, and avoid the blind area where the cooling liquid does not flow or generates eddy currents; the gearbox casing of the present invention has high heat exchange efficiency , compared with other heat dissipation structures, the manufacturing cost is lower.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Details Of Gearings (AREA)

Abstract

本发明公开了一种变速箱壳体，该变速箱壳体底部或侧部设有若干个第一冷却液槽，第一冷却液槽底部上侧的变速箱壳体内设置有润滑液，第一冷却液槽用于对润滑液进行冷却；第一冷却液槽内设有若干平行的分隔壁，通过分隔壁把第一冷却液槽分隔成至少两个连通的分槽，分槽内设有第一固定导流筋和第二悬浮导流筋，对冷却液进行分流。本发明的变速箱壳体中，通过在变速箱壳体底部或侧部设有若干个冷却液槽，可实现对变速箱壳体内的润滑液进行冷却，在冷却液槽内设置引导循环冷却液流向的悬浮导流筋和固定导流筋，增大了冷却液与变速箱壳体的散热接触面积，避免了冷却液不流动或产生涡流的盲区，散热效果好。

Description

一种变速箱壳体 技术领域
本发明属于变速箱结构技术领域，特别涉及一种变速箱壳体。
发明背景
随着汽车行业的不断发展，变速箱及整个动力系统需要面对越来越复杂的工况，用户对变速箱的最高转速、温升情况及寿命的兼顾需求越来越迫切，采用传统散热结构的变速箱壳体已不能满足汽车行业对大功率、大扭矩与最高车速及最高寿命兼顾的车辆发展要求。
目前传统变速箱壳体液冷散热结构，具有散热面积小、存在冷却液盲区等缺点，导致变速箱壳体与冷却液热交换率较低，散热性能不佳。在一定程度上，对变速箱壳体及内部运转零件造成损害，影响变速箱系统的传动性能及使用寿命。
发明内容
针对上述问题，本发明公开了一种变速箱壳体，以克服上述问题或者至少部分地解决上述问题。
为了实现上述目的，本发明采用以下技术方案：
本发明公开一种变速箱壳体，所述变速箱壳体底部或侧部设有若干个第一冷却液槽，所述第一冷却液槽底部上侧的所述变速箱壳体内设置有润滑液，所述第一冷却液槽用于对所述润滑液进行冷却；
所述第一冷却液槽内设有若干平行的分隔壁，通过所述分隔壁把所述第一冷却液槽分隔成至少两个连通的分槽，所述分槽两侧的分隔壁或所述第一冷却液槽内壁上分别伸出多个相互交错的第一固定导流筋，从而形成供所述冷却液流通的连续S形或迷宫形的通道；
所述第一冷却液槽上设有第一进液口和第一出液口，所述第一进液口和所述第一出液口设置在所述第一冷却液槽的一端或两端；两个相邻所述第一固定导流筋之间和所述第一固定导流筋与所述第一进液口之间和/或所述第一固定导流筋与所述第一出液口之间设有孤立的第一悬浮导流筋。
进一步地，所述第一悬浮导流筋相对所述第一固定导流筋倾斜设置。
进一步地，所述第一悬浮导流筋两侧的所述第一冷却液槽底部的深度不同，使所述第一冷却液槽底部内侧面和外侧面呈波浪状设置，且所述第一冷却液槽底部的深度可根据所述变速箱壳体内部齿轮的位置进行调整。
进一步地，所述第一冷却液槽四个侧壁的顶部设有环形凹槽，所述环形凹槽内设有密封垫圈，用于所述第一冷却液槽的密封。
进一步地，所述环形凹槽外侧设有若干螺纹孔，所述第一冷却液槽上还设有第一盖板，所述第一盖板通过所述螺纹孔和螺钉固定在所述第一冷却液槽上；所述第一盖板和所述螺钉下沉设置，所述第一盖板固定在所述第一冷却液槽上时，使所述变速箱壳体底部在一个平面上。
进一步地，所述第一进液口与电机水套内部的冷却液通道连通，或所述第一进液口与电机冷却液通道出口连接。
进一步地，所述变速箱壳体底部或侧端面上还设有第二冷却液槽，实现对所述变速箱壳体侧边内部的冷却；所述第二冷却液槽上设有第二盖板，所述第二冷却液槽两端分别设置了第二进液口和第二出液口，所述第一出液口和所述第二进液口连接。
进一步地，所述第二冷却液槽内设置多个第二固定导流筋，相邻两个所述第二固定导流筋分别与所述第二冷却液槽的两个相对的内壁连接，使冷却液呈连续S形或迷宫形从多个所述第二固定导流筋间流过，在两个相邻所述第二固定导流筋之间和所述第二固定导流筋与所述第二进液口之间和/或所述第二固定导流筋与所述第二出液口之间孤立设置有第二悬浮导流筋。
进一步地，所述第二固定导流筋与所述第二进液口之间的第二悬浮导流筋与所述第二冷却液槽的槽壁倾斜设置，其余的所述第二悬浮导流筋相对所述第二固定导流筋平行设置；所述第二悬浮导流筋两侧的所述第二冷却液槽底部的深度不同，使所第二述冷却液槽底部内侧面和外侧面均呈波浪状设置；所述第二冷却液槽底部的波浪状幅度从所述第二进液口到所述第二出液口梯次减小。
进一步地，所述第二悬浮导流筋为锥形台，所述锥形台侧面由弧面和/或斜面构成，防止出现涡流。
本发明的优点及有益效果是：
本发明的变速箱壳体中，通过在变速箱壳体底部或侧部设有若干个冷却液槽，可实现对变速箱壳体内的润滑液进行冷却，在冷却液槽内设置引导循环冷却液流向 的悬浮导流筋和固定导流筋，增大了冷却液与变速箱壳体的散热接触面积，避免了冷却液不流动或产生涡流的盲区；本发明的变速箱壳体热交换效率高，相对于其他散热结构制造成本较低。
附图简要说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为本发明的一个实施例中变速箱壳体的部分结构图；
图2为本发明的一个实施例中变速箱壳体A-A处的截面图。
图中：1、第一冷却液槽，2、分隔壁，3、第一固定导流筋，4、第一进液口，5、第一出液口，6、第一悬浮导流筋，7、环形凹槽，8、螺纹孔，9、第二冷却液槽，10、第二进液口，11、第二出液口，12、第二固定导流筋，13、第二悬浮导流筋。
实施本发明的方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整的描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下结合附图，详细说明本发明各实施例提供的技术方案。
本发明一个实施例公开了一种变速箱壳体，如图1所示，所述变速箱壳体底部或侧部设有若干个第一冷却液槽1，所述第一冷却液槽1底部上侧的所述变速箱壳体内设置有润滑液，通过第一冷却液槽1与润滑液接触，以及第一冷却液槽1内通入冷却液，可实现所述第一冷却液槽1对所述润滑液进行冷却，进而降低变速箱壳体内部零件的温度。
所述第一冷却液槽1内设有若干平行的分隔壁2，通过所述分隔壁2把所述第一冷却液槽1分隔成至少两个连通的分槽，分隔出的分槽数量可根据变速箱壳体宽 度决定，所述分槽两侧的分隔壁2或所述第一冷却液槽1内壁上分别伸出多个相互交错的第一固定导流筋3，从而形成供所述冷却液流通的连续S形或迷宫形的通道；第一固定导流筋3的设置增加了冷却液在第一冷却液槽1内的流动路径，进而增大了冷却液与第一冷却液槽1内壁的接触面积，促进热量交换。
具体地，第一固定导流筋3的一端与第一冷却液槽1内壁或分隔壁2成一定角度连接，另一端与第一冷却液槽1另一侧内壁或分隔壁2设置有一定间隙，其中角度和间隙可按照冷却液流动路径与流量进行调整。并且第一固定导流筋3的数量和厚度可根据分槽的尺寸与变速箱壳体壁厚进行调整。
所述第一冷却液槽1上设有第一进液口4和第一出液口5，所述第一进液口4和所述第一出液口5设置在所述第一冷却液槽1的一端或两端，当然，第一进液口4和第一出液口5的位置可以根据需要进行调整；两个相邻所述第一固定导流筋3之间和所述第一固定导流筋3与所述第一进液口4之间和/或所述第一固定导流筋3与所述第一出液口5之间设有孤立的第一悬浮导流筋6，可防止冷却液流动盲区，避免涡流。所述第一固定导流筋3和所述第一悬浮导流筋6的设置用于增加散热面积，提高散热性能。
综上，本发明该实施例的变速箱壳体，通过在变速箱壳体底部或侧部设有若干个冷却液槽，可实现对变速箱壳体内的润滑液进行冷却，在冷却液槽内设置引导循环冷却液流向的悬浮导流筋和固定导流筋，增大了冷却液与变速箱壳体的散热接触面积，避免了冷却液不流动或产生涡流的盲区；本发明的变速箱壳体热交换效率高，相对于其他散热结构制造成本较低。
在一个实施例中，如图1所示，所述第一悬浮导流筋6相对所述第一固定导流筋3倾斜设置，进而增加冷却液的扰动，利于热量的传递。第一悬浮导流筋6与第一固定导流筋3成一定角度的位置关系，第一悬浮导流筋6的两端与第一冷却液槽1两侧内壁或分隔壁2分别有一定间隙，冷却液从间隙流过，其中角度和间隙可根据冷却液的流动路径与流量进行调整。同时，第一悬浮导流筋6的数量和厚度可根据分槽的尺寸与变速箱壳体壁厚进行调整。
在一个优选实施例中，如图2所示，所述第一悬浮导流筋6两侧的所述第一冷却液槽1底部的深度不同，使所述第一冷却液槽1底部内侧面和外侧面呈波浪状设置，且所述第一冷却液槽1底部的深度可根据所述变速箱壳体内部齿轮的位置进行调整，此结构的设置可以有效增加第一冷却液槽1与变速箱壳体内润滑液的接触面 积，更好地进行散热。
在一个实施例中，如图1所示，所述第一冷却液槽1四个侧壁的顶部设有环形凹槽7，所述环形凹槽7内设有密封垫圈，用于第一冷却液槽1的密封。
在一个实施例中，如图1所示，所述环形凹槽7外侧设有若干螺纹孔8，所述第一冷却液槽1上还设有第一盖板，所述第一盖板通过所述螺纹孔8和螺钉固定在所述第一冷却液槽1上，其中，螺纹孔8的数量和位置可根据需要进行调整；所述第一盖板和所述螺钉下沉设置，所述第一盖板固定在所述第一冷却液槽1上时，使所述变速箱壳体底部在一个平面上，进而减小变速箱壳体的体积。
在一个实施例中，第一进液口4可设置在变速箱壳体与电机壳体连接的端面上，通过电机壳体上设置的通道实现所述第一进液口4与电机水套内部的冷却液通道连通，循环冷却液从电机冷却液通道直接经由结合面处设置于变速箱壳体上冷却液第一进液口4进入变速箱第一冷却液槽1内。
在第一进液口4可设置一个水嘴，然后通过冷却液管道实现所述第一进液口4与电机冷却液通道出口连接。循环冷却液从电机冷却液通道出口流出，经由外部冷却液管道，进入设置于变速箱第一冷却液槽1外壁处的第一进液口4，从而进入变速箱第一冷却液槽1内。
在一个实施例中，如图1和图2所示，所述变速箱壳体底部或侧端面上还设有第二冷却液槽9，实现对所述变速箱壳体侧边内部如润滑液的冷却，当然，第二冷却液槽9的数量可以为多个，可根据具体情况进行设置；所述第二冷却液槽9上设有第二盖板，第二盖板和第二冷却液槽9间设有密封圈，并通过螺钉和螺纹孔进行固定，并且第二盖板也是下沉设置。所述第二冷却液槽9两端分别设置了第二进液口10和第二出液口11，所述第一出液口5和所述第二进液口10连接。第二出液口11的位置高度高于第一进液口4，便于热量在冷却液和变速箱壳体间更好地传递。
在一个实施例中，如图1所示，所述第二冷却液槽9内设置多个第二固定导流筋12，相邻两个所述第二固定导流筋12分别与所述第二冷却液槽9的两个相对的内壁连接，使冷却液呈连续S形或迷宫形从多个所述第二固定导流筋12间流过，第二固定导流筋12的一端与第二冷却液槽9内壁成一定角度连接，另一端与第二冷却液槽9另一侧内壁设置有一定间隙，第二固定导流筋12与第二冷却液槽9内壁的角度和间隙可按照冷却液流动路径与流量进行调整。并且第二固定导流筋12 的数量和厚度可按照变速箱壳体的尺寸与壁厚进行调整。
另外，在两个相邻所述第二固定导流筋12之间和所述第二固定导流筋12与所述第二进液口10之间和/或所述第二固定导流筋12与所述第二出液口11之间孤立设置有第二悬浮导流筋13，可防止冷却液流动盲区，以及防止涡流。第二悬浮导流筋13仅底部与第二冷却液槽9底部连接，所述第二固定导流筋12和特别是所述第二悬浮导流筋13的设置可用于增加散热面积，避免在流道出现涡流，提高散热性能。
在一个实施例中，如图1所示，为了更好对冷却液进行分流，所述第二固定导流筋12与所述第二进液口10之间的第二悬浮导流筋13与所述第二冷却液槽9的槽壁倾斜设置，其余的所述第二悬浮导流筋13相对所述第二固定导流筋12平行设置，可以有效防止涡流产生，使冷却液顺利从第二固定导流筋12和第二悬浮导流筋13间通过；所述第二悬浮导流筋13两侧的所述第二冷却液槽9底部的深度不同，使所述第二冷却液槽9底部内侧面和外侧面均呈波浪状设置，进而增大冷却液和变速箱壳体内的润滑液与第二冷却液槽9底部接触面积，促进散热，其中波浪状的幅度可进行调整。
从图2可以看出，所述第二冷却液槽9底部的波浪状幅度从所述第二进液口10到所述第二出液口11梯次减小，可以避免冷却液流动盲区，增加散热效果。
在一个实施例中，所述第二悬浮导流筋13为锥形台，所述锥形台侧面由弧面和/或斜面构成，防止出现涡流。当然，第二悬浮导流筋13也可以为具有优异导流效果的其他结构。同样，第二固定导流筋12侧面也可由弧面和/或斜面构成，并且起到相同的效果。
综上，本发明公开了一种变速箱壳体，变速箱壳体底部或侧部设有若干个第一冷却液槽，第一冷却液槽底部上侧的变速箱壳体内设置有润滑液，第一冷却液槽用于对润滑液进行冷却；第一冷却液槽内设有若干平行的分隔壁，通过分隔壁把第一冷却液槽分隔成至少两个连通的分槽，分槽两侧的分隔壁或第一冷却液槽内壁上分别伸出多个相互交错的第一固定导流筋，从而形成供冷却液流通的连续S形或迷宫形的通道；第一冷却液槽上设有第一进液口和第一出液口，第一进液口和第一出液口设置在第一冷却液槽的一端或两端；两个相邻第一固定导流筋之间和第一固定导流筋与第一进液口之间和/或第一固定导流筋与第一出液口之间设有孤立的第一悬浮导流筋。本发明的变速箱壳体中，通过在变速箱壳体底部或侧部设有若干个冷却 液槽，可实现对变速箱壳体内的润滑液进行冷却，在冷却液槽内设置引导循环冷却液流向的悬浮导流筋和固定导流筋，增大了冷却液与变速箱壳体的散热接触面积，避免了冷却液不流动或产生涡流的盲区；本发明的变速箱壳体热交换效率高，相对于其他散热结构制造成本较低。
以上仅为本发明的具体实施方式，在本发明的上述教导下，本领域技术人员可以在上述实施例的基础上进行其他的改进或变形。本领域技术人员应该明白，上述的具体描述只是更好的解释本发明的目的，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种变速箱壳体，其特征在于，所述变速箱壳体底部或侧部设有若干个第一冷却液槽，所述第一冷却液槽底部上侧的所述变速箱壳体内设置有润滑液，所述第一冷却液槽用于对所述润滑液进行冷却；
    所述第一冷却液槽内设有若干平行的分隔壁，通过所述分隔壁把所述第一冷却液槽分隔成至少两个连通的分槽，所述分槽两侧的分隔壁或所述第一冷却液槽内壁上分别伸出多个相互交错的第一固定导流筋，从而形成供所述冷却液流通的连续S形或迷宫形的通道；
    所述第一冷却液槽上设有第一进液口和第一出液口，所述第一进液口和所述第一出液口设置在所述第一冷却液槽的一端或两端；两个相邻所述第一固定导流筋之间和所述第一固定导流筋与所述第一进液口之间和/或所述第一固定导流筋与所述第一出液口之间设有孤立的第一悬浮导流筋。
  2. 根据权利要求1所述的变速箱壳体，其特征在于，所述第一悬浮导流筋相对所述第一固定导流筋倾斜设置。
  3. 根据权利要求1所述的变速箱壳体，其特征在于，所述第一悬浮导流筋两侧的所述第一冷却液槽底部的深度不同，使所述第一冷却液槽底部内侧面和外侧面呈波浪状设置，且所述第一冷却液槽底部的深度可根据所述变速箱壳体内部齿轮的位置进行调整。
  4. 根据权利要求3所述的变速箱壳体，其特征在于，所述第一冷却液槽四个侧壁的顶部设有环形凹槽，所述环形凹槽内设有密封垫圈，用于所述第一冷却液槽的密封。
  5. 根据权利要求4所述的变速箱壳体，其特征在于，所述环形凹槽外侧设有若干螺纹孔，所述第一冷却液槽上还设有第一盖板，所述第一盖板通过所述螺纹孔和螺钉固定在所述第一冷却液槽上；所述第一盖板和所述螺钉下沉设置，所述第一盖板固定在所述第一冷却液槽上时，使所述变速箱壳体底部在一个平面上。
  6. 根据权利要求5所述的变速箱壳体，其特征在于，所述第一进液口与电机水套内部的冷却液通道连通，或所述第一进液口与电机冷却液通道出口连接。
  7. 根据权利要求1所述的变速箱壳体，其特征在于，所述变速箱壳体底部或侧端面上还设有第二冷却液槽，实现对所述变速箱壳体侧边内部的冷却；所述第二冷却液槽上设有第二盖板，所述第二冷却液槽两端分别设置了第二进液口和第二出 液口，所述第一出液口和所述第二进液口连接。
  8. 根据权利要求7所述的变速箱壳体，其特征在于，所述第二冷却液槽内设置多个第二固定导流筋，相邻两个所述第二固定导流筋分别与所述第二冷却液槽的两个相对的内壁连接，使冷却液呈连续S形或迷宫形从多个所述第二固定导流筋间流过，在两个相邻所述第二固定导流筋之间和所述第二固定导流筋与所述第二进液口之间和/或所述第二固定导流筋与所述第二出液口之间孤立设置有第二悬浮导流筋。
  9. 根据权利要求8所述的变速箱壳体，其特征在于，所述第二固定导流筋与所述第二进液口之间的第二悬浮导流筋与所述第二冷却液槽的槽壁倾斜设置，其余的所述第二悬浮导流筋相对所述第二固定导流筋平行设置；所述第二悬浮导流筋两侧的所述第二冷却液槽底部的深度不同，使所第二述冷却液槽底部内侧面和外侧面均呈波浪状设置；所述第二冷却液槽底部的波浪状幅度从所述第二进液口到所述第二出液口梯次减小。
  10. 根据权利要求8-9任一项所述的变速箱壳体，其特征在于，所述第二悬浮导流筋为锥形台，所述锥形台侧面由弧面和/或斜面构成，防止出现涡流。
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