Gearbox oil pump shell

A technology for oil pump casings and gearboxes, which is applied to pump components, rotary piston type/oscillating piston type pump components, transmission parts, etc., which can solve problems such as poor sealing effect, reduce oil leakage, and increase thickness , the effect of increasing the contact area

Pending Publication Date: 2018-06-01
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of poor sealing effect in the prior art, and provide a gearbox oil pump housing with good sealing effect

Method used

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  • Gearbox oil pump shell
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see Figure 1 to Figure 5 , a gearbox oil pump housing, including a housing body 1 and a cover plate 2, the middle part of one end surface of the housing body 1 is connected with the cover plate 2 through bolts 5, and the upper left part of one end surface of the housing body 1 An oil inlet 11 is provided, an oil outlet 12 is provided on the upper right part of one end surface of the housing body 1, and an oil inlet passage 13 communicating with the oil inlet 11 is provided on the upper left part of the other end surface of the housing body 1 The upper right part of the other end surface of the housing body 1 is provided with an oil outlet 14 communicating with the oil outlet 12; the end surface of the housing body 1 where the cover plate 2 is installed is provided with two positioning pin holes 18; A safety valve 3 is provided in the middle of the end surface of the housing body 1 away from the cover plate 2; the transmission oil pump housing is made of aluminum alloy....

Embodiment 2

[0042] Basic content is the same as embodiment 1, the difference is:

[0043] see Figure 1 to Figure 4, the periphery of the housing body 1 is provided with a plurality of bolt holes 15, the housing body 1 is fixed on the gearbox housing through the bolt holes 15, and the depth of the bolt holes 15 is equal to the thickness of the housing body 1; The end surface of the housing body 1 away from the cover plate 2 is provided with a plurality of No. 1 reinforcing ribs 16, and the No. 1 reinforcing ribs 16 are arranged crosswise on the connection line of the bolt holes 15; the housing body 1 is far away from the cover plate 2 A plurality of No. 2 reinforcing ribs 17 are provided on the end face of the housing, and the No. 2 reinforcing ribs 17 are located between the bolt holes 15 and the housing body 1; the housing body 1 has a Y-shaped structure.

Embodiment 3

[0045] Basic content is the same as embodiment 1, the difference is:

[0046] see Figure 1 to Figure 4 , the outer end surface of the cover plate 2 is provided with a third reinforcing rib 21 and a plurality of fourth reinforcing ribs 22, the third reinforcing rib 21 is a ring structure, the third reinforcing rib 21 is concentric with the cover plate 2, and the fourth reinforcing rib The No. 4 reinforcing rib 22 is arranged on the connecting line between the center of the cover plate 2 and the outer periphery of the cover plate 2, and the No. 4 reinforcing rib 22 intersects with the No. 3 reinforcing rib 21; For the rotor 6 and the outer rotor 7 , the middle part of the cover plate 2 is equipped with a limiting flat 4 , and the shaft portion of the limiting flat 4 is in interference fit with the inner hole of the inner rotor 6 .

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PUM

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Abstract

The invention provides a gearbox oil pump shell which comprises a shell body and a cover plate. The middle portion of the shell body is connected with the cover plate through a bolt. An oil inlet is formed in the left upper portion of one end face of the shell body. An oil outlet is formed in the right upper portion of one end face of the shell body. An oil input channel communicating with the oilinlet is formed in the left upper portion of the other end face of the shell body. An oil output channel communicating with the oil outlet is formed in the right upper portion of the other end face of the shell body. Multiple bolt holes are formed in the periphery of the shell body. The depth of the bolt holes is equal to the thickness of the shell body. Multiple reinforcing ribs are arranged onthe end face, away from the cover plate, of the shell body. The reinforcing ribs are arranged on the connecting lines of the bolt holes in an intersecting manner and arranged between the bolt holes and the shell body. The gearbox oil pump shell is good in sealing effect, high in structural strength and high in rigidity.

Description

technical field [0001] The invention relates to the technical field of automobile gearboxes, in particular to a casing of a gearbox oil pump, which is mainly suitable for solving the problem of oil leakage at the joint surface between the gearbox oil pump and matching accessories. Background technique [0002] Most of the heavy-duty gearboxes adopt the active lubrication method, and the lubricating oil is pumped to the parts of the gearbox that need to be lubricated through the oil pump, such as bearings and gear meshing surfaces, for fixed-point lubrication. Due to the pressure in the gearbox lubrication system and the large pressure fluctuations, the larger the contact area between the oil inlet passage, the oil outlet passage of the oil pump and the matching parts, the higher the risk of oil leakage from the sealing surface of the transmission oil pump oil passage. The problem of oil leakage between the transmission oil pump and the sealing surface of the matching parts i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04F04C15/00F04C15/06
CPCF04C15/00F04C15/06F16H57/0436F04C2240/30
Inventor 刘薇张莉香杜春鹏闵运东王佳曹辞刘奇正
Owner DONGFENG COMML VEHICLE CO LTD
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