CN208221549U - A kind of list countershaft transmission shell - Google Patents

A kind of list countershaft transmission shell Download PDF

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Publication number
CN208221549U
CN208221549U CN201820561737.4U CN201820561737U CN208221549U CN 208221549 U CN208221549 U CN 208221549U CN 201820561737 U CN201820561737 U CN 201820561737U CN 208221549 U CN208221549 U CN 208221549U
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China
Prior art keywords
oil inlet
transmission
case
installation cavity
gear installation
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Active
Application number
CN201820561737.4U
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Chinese (zh)
Inventor
耿伟杰
严鉴铂
刘义
赵娜
侯景宸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Publication date
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Priority to CN201820561737.4U priority Critical patent/CN208221549U/en
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Abstract

The utility model belongs to transmission technology field, and in particular to a kind of list countershaft transmission shell, it is therefore intended that solves the problems, such as that existing single countershaft transmission lubricant passage way concentration degree is low and oil leakage risk is high.The technical solution of the utility model is: a kind of list countershaft transmission shell, including case of transmission, reverse idler gear installation cavity is offered on the case of transmission, on the case of transmission major-minor case partition wall at reverse idler gear installation cavity rear, it is provided with main oil inlet and secondary oil inlet, the pair oil inlet and main oil inlet are distributed in from the distant to the near on the outside of reverse idler gear installation cavity, and main oil inlet is lower than secondary oil inlet height in place in place, and the case of transmission is equipped with the oil suction road being connected to reverse idler gear installation cavity upper end.

Description

A kind of list countershaft transmission shell
Technical field
The utility model belongs to transmission technology field, and in particular to a kind of list countershaft transmission shell.
Background technique
Heavy-duty automotive speed changer is various informative, and multi gear position heavy-duty automotive speed changer is mostly based on major-minor case structure, main tank list Jackshaft, odd-side planetary gear construction are current heavy-duty car speed change fields than more typical structure.In such structure, due to making With a large amount of needle bearing and tapered roller bearing, it is easy to produce ablation in the case where lubricating insufficient, reduces speed changer Service life.It is carried out to strengthen lubrication and a kind of cooling development trend for having become domestic and international speed changer.Existing pressure profit Sliding mechanism needs the oil circuit that inside case of transmission or external arrangement is very long, and it is low to cause lubricant passage way concentration degree, too long Lubricating oil pipe also brings the high problem of oil leakage risk.
Summary of the invention
It is low utility model aims to solve existing single countershaft transmission lubricant passage way concentration degree and lubricating oil is let out It divulges a secret the high problem in danger, and provides a kind of single countershaft transmission shell.
In order to complete above-mentioned purpose, the technical solution that the utility model is proposed is:
A kind of list countershaft transmission shell, including case of transmission offer centre of reversing gear on the case of transmission Gear installation cavity is characterized in that on the case of transmission major-minor case partition wall at reverse idler gear installation cavity rear, It is provided with main oil inlet and secondary oil inlet, the pair oil inlet and main oil inlet are distributed in reverse idler gear peace from the distant to the near On the outside of behaveing affectedly, and main oil inlet is lower than secondary oil inlet height in place in place, and the case of transmission is equipped with and falls Keep off the oil suction road of intermediate gear installation cavity upper end connection.
Further, the oil suction road is arranged perpendicular to reverse idler gear installation cavity.
Further, the outlet in the oil suction road is equipped with the oil outlet being coaxially connected to.
Compared with the prior art, the advantages of the utility model are:
It is provided with main oil inlet and secondary oil inlet on the major-minor case partition wall of the case of transmission of the utility model, is equipped with simultaneously The oil suction road being connected to reverse idler gear installation cavity upper end.When forced feed lubrication works, the lubricating oil in odd-side passes through main oil inlet Mouth and secondary oil inlet enter inside the main tank of case of transmission, because main oil inlet is lower than secondary oil inlet height in place in place Degree, therefore the lubricating oil for flowing through secondary oil inlet is pooled to main oil inlet, to the reverse gear in reverse idler gear installation cavity into Row lubrication, into after oil suction road, is pumped out by oil outlet.No setting is required additional part and pipeline, makes lubricant passage way high concentration While also reduce the risk of oil leakage.
Detailed description of the invention
Fig. 1 is the schematic perspective view of case of transmission in the utility model embodiment;
Fig. 2 is the backsight partial sectional view of the utility model embodiment centre shaft variable speed device shell;
Fig. 3 is the cross-sectional view of the utility model embodiment oil duct.
In figure: 1- case of transmission, 2- oil outlet, the main oil inlet of 3-, 4- pair oil inlet, the installation of 5- reverse idler gear Chamber, 6- case of transmission major-minor case partition wall, 7- oil suction road.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer The technical solution in embodiment is clearly and completely described in attached drawing in type embodiment, and following embodiment is for illustrating this Utility model, but be not intended to limit the scope of the present invention.
Referring to Fig. 1 to Fig. 3, a kind of list countershaft transmission shell, including case of transmission 1, on the case of transmission 1 Reverse idler gear installation cavity 5 is offered, the case of transmission major-minor case partition wall 6 positioned at 5 rear of reverse idler gear installation cavity On, it is provided with main oil inlet 3 and secondary oil inlet 4, the pair oil inlet 4 and main oil inlet 3 are distributed in from the distant to the near to reverse gear Between the outside of gear installation cavity 5, and main oil inlet 3 is lower than pair oil inlet 4 height in place, the case of transmission in place 1 is equipped with the oil suction road 7 being connected to 5 upper end of reverse idler gear installation cavity, and the oil suction road 7 is pacified perpendicular to reverse idler gear It behave affectedly 5 settings, the outlet in the oil suction road 7 is equipped with the oil outlet 2 being coaxially connected to.
Working principle: when forced feed lubrication works, the lubricating oil in odd-side enters by main oil inlet 3 and secondary oil inlet 4 to be become Inside the main tank of fast device shell 1, it is lower than secondary oil inlet 4 height in place in place because of main oil inlet 3, therefore flow through pair The lubricating oil of oil inlet 4 is pooled to main oil inlet 3, is lubricated to the reverse gear in reverse idler gear installation cavity 5, enters Behind oil suction road 7, pumped out by oil outlet 2.
It should be noted that above-described is only preferred embodiments of the present invention, for the ordinary skill of this field For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.

Claims (3)

1. a kind of list countershaft transmission shell, including case of transmission (1), offers and reverse gear on the case of transmission (1) Intermediate gear installation cavity (5), it is characterised in that: be located at the case of transmission major-minor case at reverse idler gear installation cavity (5) rear On partition wall (6), it is provided with main oil inlet (3) and secondary oil inlet (4), the pair oil inlet (4) and main oil inlet (3) are from the distant to the near Ground is distributed on the outside of reverse idler gear installation cavity (5), and main oil inlet (3) is lower than secondary oil inlet (4) institute in place in place Height, the case of transmission (1) is equipped with the oil suction road (7) that is connected to reverse idler gear installation cavity (5) upper end.
2. list countershaft transmission shell according to claim 1, it is characterised in that: the oil suction road (7) is perpendicular to Keep off intermediate gear installation cavity (5) setting.
3. list countershaft transmission shell according to claim 1 or 2, it is characterised in that: the outlet of the oil suction road (7) Equipped with the oil outlet (2) being coaxially connected to.
CN201820561737.4U 2018-04-19 2018-04-19 A kind of list countershaft transmission shell Active CN208221549U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820561737.4U CN208221549U (en) 2018-04-19 2018-04-19 A kind of list countershaft transmission shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820561737.4U CN208221549U (en) 2018-04-19 2018-04-19 A kind of list countershaft transmission shell

Publications (1)

Publication Number Publication Date
CN208221549U true CN208221549U (en) 2018-12-11

Family

ID=64512132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820561737.4U Active CN208221549U (en) 2018-04-19 2018-04-19 A kind of list countershaft transmission shell

Country Status (1)

Country Link
CN (1) CN208221549U (en)

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