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CN-115111350-B - Gear box oil blocking structure and vehicle

CN115111350BCN 115111350 BCN115111350 BCN 115111350BCN-115111350-B

Abstract

The invention relates to an oil blocking structure of a gearbox and a vehicle, wherein the oil blocking structure of the gearbox comprises an oil blocking cover and a first part, the oil blocking cover is fixed on a shell, and the oil blocking cover and the shell jointly enclose a containing cavity which is used for containing a differential gear in the gearbox; the first component is arranged at the oil leakage hole and is configured to allow oil in the accommodating cavity to flow out of the accommodating cavity through the first component and prevent oil outside the accommodating cavity from flowing into the accommodating cavity through the first component. Set up the fender oil cover in differential mechanism gear's below, can block the fluid in the gearbox, and enter into the fluid that holds the intracavity and discharge through first part, avoid differential mechanism gear direct and fluid direct contact, guarantee differential mechanism gear and not receive the interference of fluid in the rotation in-process, make differential mechanism have higher work efficiency.

Inventors

  • CAO GAOYANG
  • KOU BOCHAO
  • YAN HEFEI
  • LUO CONGCONG
  • WANG DONGFENG
  • ZHANG YAN

Assignees

  • 长城汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20211217

Claims (11)

  1. 1. An oil retaining structure for a gearbox, comprising: the oil blocking cover (10) is fixed on the shell, the oil blocking cover (10) and the shell jointly enclose an accommodating cavity (11), the accommodating cavity (11) is used for accommodating a differential gear positioned in the gearbox (100), and the oil blocking cover (10) can prevent oil in the gearbox (100) from directly contacting with the differential gear; At least part of the oil shield (10) is arranged below the differential gear along the Z direction of the vehicle, an oil leakage hole (122) is formed in the oil shield (10), and the oil leakage hole (122) is positioned at the lowest point of the oil shield (10) along the Z direction of the vehicle; A first member (20) disposed at the oil leakage hole (122), the first member (20) being configured to allow oil in the accommodating chamber (11) to flow out of the accommodating chamber (11) through the first member (20) and to prevent oil outside the accommodating chamber (11) from flowing into the accommodating chamber (11) through the first member (20); The oil blocking cover is characterized in that the first component (20) is located on one side, deviating from the differential gear, of the oil blocking cover (10), the first component (20) comprises a mounting seat (21), an elastic piece (22) and a movable plug (23), the mounting seat (21) is fixed on the oil blocking cover (10), one end of the elastic piece (22) is fixedly connected with the mounting seat (21), the other end of the elastic piece (22) is fixedly connected with the movable plug (23), and the movable plug (23) can seal the oil leakage hole (122).
  2. 2. An oil baffle structure of a gearbox according to claim 1, characterized in that the oil baffle cover (10) is arranged as an arc-shaped structure recessed towards the direction away from the differential gear.
  3. 3. The oil baffle structure of a gearbox according to claim 1 or 2, characterized in that the oil baffle cover (10) comprises a first arc baffle (12) and a second arc baffle (13); One end of the first arc-shaped baffle plate (12) is used for being connected with a differential mechanism shell (31) or a gearbox shell (41), and the other end of the first arc-shaped baffle plate is connected with the second arc-shaped baffle plate (13); the second arc-shaped baffle plate (13) extends along the radial direction of the differential gear, and the cross section of the second arc-shaped baffle plate (13) and the cross section of the first arc-shaped baffle plate (12) form an L shape; the oil leakage hole (122) is formed in the first arc baffle (12).
  4. 4. A gear box oil baffle structure according to claim 3, characterized in that a first flanging (121) is formed on the first arc baffle (12), and a plurality of mounting holes (1210) are formed on the first flanging (121); the mounting holes (1210) are arranged at intervals along the circumferential direction of the first flange (121), and the mounting holes (1210) are used for allowing fasteners connected with the differential case (31) to pass through.
  5. 5. An oil baffle structure of a gear box according to claim 3, wherein, A second flanging (130) is formed at one end, far away from the first arc-shaped baffle (12), of the second arc-shaped baffle (13); the second arc-shaped baffle plate (13) is also provided with a plurality of reinforcing ribs (131), and the reinforcing ribs (131) are arranged at intervals along the circumferential direction of the second arc-shaped baffle plate (13) and are connected with the second flanging (130).
  6. 6. The oil blocking structure of the gearbox according to claim 1, wherein the oil blocking cover (10) is provided with a collecting point along the Z direction of the vehicle, the collecting point is a junction point after oil entering the containing cavity (11) flows along inner walls at two ends of the oil blocking cover (10), and the oil leakage hole (122) is positioned at the collecting point of the oil blocking cover (10).
  7. 7. An oil baffle structure of a gearbox according to claim 1, wherein, The housing comprises a gearbox housing (41) or a differential housing (31).
  8. 8. An oil baffle structure of a gearbox according to claim 1, wherein, The housing comprises a gearbox housing (41) and a differential housing (31); The transmission case (41) and the differential case (31) are integrally formed.
  9. 9. An oil baffle structure of a gearbox according to claim 1, wherein, A flange (42) is formed on the housing; -said flange (42) is located under said oil deflector (10) in the Z-direction of said vehicle; an oil inlet (420) communicated with an oil duct of the shell is formed on the flange (42), and the oil inlet (420) is used for allowing oil to flow into the oil duct.
  10. 10. An oil baffle structure of a gear box according to claim 9, characterized in that the difference between the top end of the flange (42) and the height of the oil inlet (420) is 3-5 mm in the Z-direction of the vehicle.
  11. 11. A vehicle characterized by comprising an oil-stopping structure of a gearbox according to any of claims 1-10.

Description

Gear box oil blocking structure and vehicle Technical Field The invention relates to the technical field of vehicles, in particular to an oil blocking structure of a gearbox and a vehicle. Background In the prior art, oil is arranged in the gearbox, and in the running process of the gearbox, the differential gear in the gearbox may be partially immersed in the oil, so that when the differential gear rotates, the oil or the differential gear is prevented from rotating, and energy is wasted in the rotation process of the differential gear. Disclosure of Invention The invention aims to provide an oil blocking structure of a gearbox and a vehicle so as to solve the technical problems in the related art In order to achieve the above object, according to a first aspect of the present invention, there is provided an oil blocking structure of a transmission, comprising: The oil blocking cover is fixed on the shell, and the oil blocking cover and the shell jointly enclose an accommodating cavity which is used for accommodating a differential gear positioned in the gearbox; at least part of the oil blocking cover is arranged below the differential gear along the Z direction of the vehicle, and oil leakage holes are formed in the oil blocking cover; The first component is arranged at the oil leakage hole and is configured to allow oil in the accommodating cavity to flow out of the accommodating cavity through the first component and prevent oil outside the accommodating cavity from flowing into the accommodating cavity through the first component. Optionally, the oil shield is configured as an arcuate structure recessed toward a direction away from the differential gear. Optionally, the oil shield comprises a first arc baffle and a second arc baffle; one end of the first arc-shaped baffle is used for being connected with the differential mechanism shell or the gearbox shell, and the other end of the first arc-shaped baffle is connected with the second arc-shaped baffle; The second arc-shaped baffle plate extends along the radial direction of the differential gear, and the cross section of the second arc-shaped baffle plate and the cross section of the first arc-shaped baffle plate form an L shape; the oil leakage hole is formed in the first arc-shaped baffle plate. Optionally, a first flanging is formed on the first arc-shaped baffle, and a plurality of mounting holes are formed on the first flanging; the mounting holes are arranged at intervals along the circumferential direction of the first flanging, and the mounting holes are used for allowing fasteners connected with the differential housing to pass through. Optionally, a second flanging is formed at one end of the second arc-shaped baffle, which is far away from the first arc-shaped baffle; And a plurality of reinforcing ribs are further formed on the second arc-shaped baffle plate, are arranged at intervals along the circumferential direction of the second arc-shaped baffle plate, and are connected with the second flanging. Optionally, along the Z direction of vehicle, have the collection point on the fender oil cover, the collection point is the entering into the interior fluid of holding the intracavity is followed the intersection after the inner wall at fender oil cover's both ends flows, the oil leak hole is located the collection point department that keeps off the oil cover. Optionally, the first component is located on a side of the oil shield facing away from the differential gear. Optionally, the first component is provided as a one-way valve, a relief valve or a solenoid valve. Optionally, the first component comprises a first magnet, a guide rod and a second magnet; the first magnet is arranged on the periphery of the oil leakage hole and is embedded on the oil blocking cover; one end of the guide rod is fixed on the first magnet or the oil shield, and the other end of the guide rod penetrates through the second magnet; The second magnet is adsorbed on the first magnet through magnetic force, so that the oil leakage hole is plugged. Optionally, the housing comprises a gearbox housing or a differential housing. Optionally, the housing comprises a gearbox housing and a differential housing; the transmission housing and the differential housing are integrally formed. Optionally, a flange is formed on the housing; the flange is positioned below the oil shield along the Z direction of the vehicle; An oil inlet communicated with the oil duct of the shell is formed in the flange, and oil flows into the oil duct through the oil inlet. Optionally, in the Z direction of the vehicle, the difference between the top end of the flange and the height of the oil inlet is 3mm-5mm. According to a second aspect of the present invention there is provided a vehicle comprising an oil retaining structure of a gearbox as described above. According to the technical scheme, the oil blocking cover is arranged in the gearbox, and is at least partially positioned below the diff