CN111677844A - Transmission upper cover assembly - Google Patents

Transmission upper cover assembly Download PDF

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Publication number
CN111677844A
CN111677844A CN202010586670.1A CN202010586670A CN111677844A CN 111677844 A CN111677844 A CN 111677844A CN 202010586670 A CN202010586670 A CN 202010586670A CN 111677844 A CN111677844 A CN 111677844A
Authority
CN
China
Prior art keywords
shifting fork
gear shifting
gear
upper cover
fork shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010586670.1A
Other languages
Chinese (zh)
Inventor
刘晓雷
孙智金
刘义
张海涛
殷崇一
王中龙
王晓庆
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 Auto Drive Group Co Ltd
Original Assignee
Shaanxi Fast Auto Drive Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi Fast Auto Drive Group Co Ltd filed Critical Shaanxi Fast Auto Drive Group Co Ltd
Priority to CN202010586670.1A priority Critical patent/CN111677844A/en
Publication of CN111677844A publication Critical patent/CN111677844A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • 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
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
    • 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
    • F16H2057/02091—Measures for reducing weight of gearbox
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H2063/3076—Selector shaft assembly, e.g. supporting, assembly or manufacturing of selector or shift shafts; Special details thereof

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention discloses a transmission upper cover assembly, which comprises an upper cover; a reverse first-gear shifting fork shaft, a second-third-gear shifting fork shaft, a sixty-seventh-gear shifting fork shaft, an eight-gear shifting fork shaft and a fourth-fifth-gear shifting fork shaft are arranged in the shifting fork shaft seat of the upper cover from right to left; the reverse first gear shifting fork and the reverse first gear guide block are connected with the reverse first gear shifting fork shaft through screws; the six-seven gear shifting fork shaft is provided with a six-seven gear shifting fork and a six-seven gear guide block, and the six-seven gear shifting fork and the six-seven gear guide block are connected with the six-seven gear shifting fork shaft through screws; the eight-gear shifting fork shaft is provided with an eight-gear shifting fork and an eight-gear guide block, and the eight-gear shifting fork and the eight-gear guide block are connected with the eight-gear shifting fork shaft through screws; a fourth-fifth gear shifting fork is arranged on the fourth-fifth gear shifting fork shaft; a second and third gear shifting fork is arranged on the second and third gear shifting fork shaft; the head parts of the second-gear and third-gear shifting forks and the fourth-gear and fifth-gear shifting forks are integrated with guide block structures; the gear can be shifted directly through a shifting fork head guide block structure; the problem of traditional fork axle arrange in proper order the pattern then the fork mounting height is high is solved.

Description

Transmission upper cover assembly
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of transmissions, and particularly relates to a transmission upper cover assembly.
[ background of the invention ]
The double-intermediate-shaft transmission is of a double-intermediate-shaft structure, the left intermediate shaft and the right intermediate shaft are horizontally arranged, the arrangement space of the shifting fork shaft is abundant, the arrangement requirement can be met by adopting a traditional sequential arrangement mode, the oil pipe is also fixed by a traditional method of inserting the oil pipe into the transmission shell from front to back, and the oil hole for spraying the gear below can be formed in the oil pipe.
Two difficult problems are encountered during the over-drive arrangement of the three-countershaft transmission. Firstly, if a traditional method that an oil pipe is fixed on a front shell and a rear shell is adopted, the installation requirement is high, the boxing efficiency is influenced, and the oil leakage amount at the joint of the oil pipe and an oil passage of the shell is large; secondly, if the mode that traditional fork axle order was arranged is adopted, then the fork mounting height is high, will cause the bad influence of fork intensity difference, casing bulky and whole weight increase.
[ summary of the invention ]
The invention aims to solve the problems of large shell volume, heavy weight and poor fork strength caused by high fork mounting height due to the adoption of the conventional sequential arrangement of fork shafts in the prior art; simultaneously, the problems of low installation efficiency and large oil leakage caused by the fact that an oil pipe is inserted into a transmission shell in the front and the back of the traditional method are solved, and the transmission upper cover assembly is provided.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a transmission upper cover assembly comprises an upper cover;
a reverse first-gear shifting fork shaft, a second-third-gear shifting fork shaft, a sixty-seventh-gear shifting fork shaft, an eight-gear shifting fork shaft and a fourth-fifth-gear shifting fork shaft are sequentially arranged in the shifting fork shaft seat of the upper cover side by side;
the reverse first gear shifting fork shaft is connected with a reverse first gear shifting fork and a reverse first gear guide block;
the six-seven gear shifting fork shaft is connected with a six-seven gear shifting fork and a six-seven gear guide block;
the eight-gear shifting fork shaft is connected with an eight-gear shifting fork and an eight-gear guide block;
the four-fifth gear shifting fork shaft is connected with a four-fifth gear shifting fork;
the second and third gear shifting fork shaft is connected with a second and third gear shifting fork;
the head parts of the second-gear and third-gear shifting forks and the head parts of the fourth-gear and fifth-gear shifting forks are integrated with guide block structures;
a first lubricating oil pipe assembly is arranged on one side of the upper cover, a second lubricating oil pipe assembly is arranged on the other side of the upper cover, and the first lubricating oil pipe assembly, the second lubricating oil pipe assembly and the upper cover shell oil duct are communicated;
the rear end and the front end of the upper cover are respectively provided with 1 vertical oil duct and 3 vertical oil ducts, the vertical oil duct at the rear end is communicated with a main oil duct of the transmission shell, the vertical oil duct at the front end is communicated with an oil inlet duct at the front end surface of the transmission shell, the front horizontal oil duct and the rear horizontal oil duct of the upper cover are communicated through a first lubricating oil pipe assembly and a second lubricating oil pipe assembly, the horizontal oil ducts arranged at the front end are communicated with the 3 vertical oil ducts, and the main oil duct is communicated with the first lubricating oil pipe assembly through the horizontal oil duct at the rear end.
The invention further improves the following steps:
the reverse gear shifting fork and the reverse gear guide block are connected with the reverse gear shifting fork shaft through screws with positioning conical surfaces;
the six-seventh gear shifting fork and the six-seventh gear guide block are connected with a six-seventh gear shifting fork shaft through screws with positioning conical surfaces;
the eight-gear shifting fork and the eight-gear guide block are connected with an eight-gear shifting fork shaft through a screw with a positioning conical surface;
the four-fifth gear shifting fork is connected with the four-fifth gear shifting fork shaft through a screw with a positioning conical surface;
the two-gear shifting fork and the three-gear shifting fork are connected with the two-gear shifting fork shaft and the three-gear shifting fork shaft through screws with positioning conical surfaces.
The connecting structure of the first lubricating oil pipe assembly and the upper cover is the same as that of the second lubricating oil pipe assembly and the upper cover.
The first lubricating oil pipe assembly comprises an oil pipe, an O-shaped sealing ring and a connecting piece;
the connecting pieces are welded at two ends of the oil pipe, the connecting pieces are inserted into the upper cover, and the outer surfaces of the connecting pieces are provided with annular grooves;
the O-shaped sealing ring is arranged in the annular groove.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the upper cover is provided with the plurality of vertical and transverse oil ducts and the two lubricating oil pipe assemblies communicated with the oil ducts, so that the purposes of spraying the lower gear and lubricating the front-end high-position bearing can be realized, and the problems of low assembly efficiency and large oil leakage of the transmission caused by the arrangement of the oil pipes of the traditional transmission are avoided; through placing six seven grades and eight grades of declutch shift shafts in the middle of, can avoid controlling the biggest gear on the jackshaft assembly for declutch shift shaft mounting height reduces, and shift fork intensity promotes, and casing volume and weight all obtain reducing by a wide margin.
[ description of the drawings ]
In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic perspective view of a cover assembly according to the present invention;
FIG. 2 is a schematic perspective view of the present invention shown in FIG. 1 with the top cover removed;
FIG. 3 is a rear view of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic structural view of a left lubrication pipe assembly of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
fig. 6 is an oil passage arrangement diagram of the upper cover of the present invention.
Wherein: 1-upper cover, 2-reverse first gear shifting fork, 3-second third gear shifting fork, 4-fourth fifth gear shifting fork, 5-eighth gear shifting fork, 6-sixty-seventh gear shifting fork, 7-reverse first gear shifting fork shaft, 8-reverse first gear guide block, 9-sixty-seventh gear guide block, 10-eighth gear guide block, 11-fourth fifth gear shifting fork shaft, 12-eighth gear shifting fork shaft, 13-sixty-seventh gear shifting fork shaft, 14-second third gear shifting fork shaft, 15-second lubricating oil pipe assembly, 16-first lubricating oil pipe assembly, 16-1-lubricating oil pipe, 16-2-O type sealing ring and 16-3-connecting piece.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, a transmission upper cover assembly includes an upper cover 1.
A reverse first-gear shifting fork shaft 7, a second-third-gear shifting fork shaft 14, a sixty-seven-gear shifting fork shaft 13, an eight-gear shifting fork shaft 12 and a fourth-fifth-gear shifting fork shaft 11 are arranged in parallel in the shifting fork shaft seat of the upper cover 1 in sequence.
Wherein, a reverse first gear shifting fork 1 and a reverse first gear guide block 8 are arranged on the reverse first gear shifting fork shaft 7; the reverse one-gear shifting fork shaft 7 is provided with a reverse one-gear shifting fork 1 and a reverse one-gear guide block 8, and the reverse one-gear shifting fork 1 and the reverse one-gear guide block 8 are fixed with the reverse one-gear shifting fork shaft 7 through screws with positioning conical surfaces.
A six-seven gear shifting fork 5 and a six-seven gear guide block 9 are arranged on the six-seven gear shifting fork shaft 13; the six-seven gear shifting fork 5 and the six-seven gear guide block 9 are fixed with a six-seven gear shifting fork shaft 13 through screws with positioning conical surfaces.
An eight-gear shifting fork 4 and an eight-gear guide block 10 are arranged on the eight-gear shifting fork shaft 12; the eight-gear shifting fork 4 and the eight-gear guide block 10 are fixed with an eight-gear shifting fork shaft 12 through screws with positioning conical surfaces.
A fourth-fifth gear shifting fork 3 is arranged on the fourth-fifth gear shifting fork shaft 11; the second and third gear shifting forks 2 are mounted on the second and third gear shifting fork shafts 14.
The head of the second-third gear shifting fork 2 and the head of the fourth-fifth gear shifting fork 3 are integrated with guide block structures, and gear shifting can be directly carried out through the guide block structures at the heads of the shifting forks; the technical problems that when the upper cover of the three-intermediate-shaft transmission is arranged in a mode that the traditional shifting fork shafts are sequentially arranged, the shifting fork is high in installation height, so that the intensity of the shifting fork is poor, the size of a shell is large, and the whole weight is increased are solved.
Referring to fig. 3, 4 and 5, one end of the upper cover 1 is provided with a first lubricating oil pipe assembly 16, the other end is provided with a second lubricating oil pipe assembly 15, the rear end and the front end of the upper cover 1 are respectively provided with 1 and 3 vertical oil ducts, the vertical oil duct at the rear end is communicated with a main oil duct of the transmission housing, the vertical oil duct at the front end is communicated with an oil inlet duct at the front end of the transmission housing, the front and rear horizontal oil ducts of the upper cover are communicated through the first lubricating oil pipe assembly 16 and the second lubricating oil pipe assembly 15, the horizontal oil duct at the front end is communicated with the 3 vertical oil ducts, and the main oil duct is communicated with the first lubricating oil pipe assembly 16 through the horizontal oil duct at the rear end.
The connecting structure of the first lubricating oil pipe assembly 16 and the upper cover 1 and the connecting structure of the second lubricating oil pipe assembly 15 and the upper cover 1 are the same.
The first lubricating oil pipe assembly 16 comprises an oil pipe 16-1, an O-shaped sealing ring 16-2 and a connecting sheet 16-3;
the connecting pieces 16-3 are welded at two ends of the oil pipe 16-1, the connecting pieces 16-3 are inserted into the upper cover 1, the outer surface of the connecting pieces 16-3 is provided with annular grooves, and the O-shaped sealing rings (16-2) are arranged in the annular grooves, so that the problems that the installation requirement is high and the packing efficiency is influenced by adopting a traditional method for fixing the oil pipe on the front shell and the rear shell are solved.
Referring to fig. 6, the upper cover 1 is provided with 6 horizontal oil passages, which are respectively 1-1, 1-2, 1-3, 1-4, 1-5, 1-6 and 8 vertical oil passages, namely a0, a1, a2, a3, a4, a5, a6 and a7, the horizontal oil passage 1-1 is provided with two vertical oil passages a0 and a1, and the vertical oil passage a0 is communicated with a main oil passage of a transmission case. The second lubricating oil pipe assembly 15 communicates the longitudinal oil passages 1-1 and 1-5 through the vertical oil passages a1, a 2. The first lubricating oil pipe assembly 16 communicates the longitudinal oil passages 1-6 with the longitudinal oil passages 1-5 through the vertical oil passages a6, a 7. Meanwhile, the front end of the transverse oil duct 1-1 is communicated with the longitudinal oil duct 1-6. The longitudinal oil passage 1-5 is provided with three branch transverse oil passages 1-2, 1-3 and 1-4, and the three branch transverse oil passages are provided with 3 vertical oil passages a3, a4 and a5 which are respectively used for lubricating a front bearing of a right intermediate shaft, a front bearing of a shaft and a front bearing of a left intermediate shaft.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A transmission upper cover assembly, characterized by comprising an upper cover (1);
a reverse first-gear shifting fork shaft (7), a second-third-gear shifting fork shaft (14), a sixty-seven-gear shifting fork shaft (13), an eight-gear shifting fork shaft (12) and a fourth-fifth-gear shifting fork shaft (11) are arranged in the shifting fork shaft seat of the upper cover (1) in parallel in sequence;
the reverse first gear shifting fork shaft (7) is connected with a reverse first gear shifting fork (2) and a reverse first gear guide block (8);
the six-seven gear shifting fork shaft (13) is connected with a six-seven gear shifting fork (6) and a six-seven gear guide block (9);
the eight-gear shifting fork shaft (12) is connected with an eight-gear shifting fork (5) and an eight-gear guide block (10);
the four-fifth gear shifting fork shaft (11) is connected with a four-fifth gear shifting fork (4);
the second and third gear shifting fork shaft (14) is connected with a second and third gear shifting fork (3);
the head of the second-gear and third-gear shifting fork (3) and the head of the fourth-gear and fifth-gear shifting fork (4) are integrated with guide block structures;
a first lubricating oil pipe assembly (16) is arranged on one side of the upper cover (1), a second lubricating oil pipe assembly (15) is arranged on the other side of the upper cover, and the first lubricating oil pipe assembly (16) and the second lubricating oil pipe assembly (15) are communicated with an oil passage of an upper cover shell;
the rear end and the front end of the upper cover (1) are respectively provided with 1 vertical oil duct and 3 vertical oil ducts, the vertical oil duct at the rear end is communicated with a main oil duct of a transmission shell, the vertical oil duct at the front end is communicated with an oil inlet duct at the front end surface of the transmission shell, a first lubricating oil pipe assembly (16) and a second lubricating oil pipe assembly (15) are used for communicating the front horizontal oil duct and the rear horizontal oil duct of the upper cover, the horizontal oil duct arranged at the front end is communicated with the 3 vertical oil ducts, and the main oil duct is communicated with the first lubricating oil pipe assembly (16) through the horizontal oil duct at the rear end.
2. The transmission cover assembly of claim 1,
the reverse gear shifting fork (2) and the reverse gear guide block (8) are connected with a reverse gear shifting fork shaft (7) through screws with positioning conical surfaces;
the six-seven shift fork (6) and the six-seven shift guide block (9) are connected with a six-seven shift fork shaft (13) through screws with positioning conical surfaces;
the eight-gear shifting fork (5) and the eight-gear guide block (10) are connected with an eight-gear shifting fork shaft (12) through screws with positioning conical surfaces;
the four-fifth gear shifting fork (4) is connected with a four-fifth gear shifting fork shaft (11) through a screw with a positioning conical surface;
the two-gear and three-gear shifting fork (3) is connected with a two-gear and three-gear shifting fork shaft (14) through a screw with a positioning conical surface.
3. A transmission upper cover assembly according to claim 1 or 2, wherein the connection structure of the first lubricating oil pipe assembly (16) and the upper cover (1) and the connection structure of the second lubricating oil pipe assembly (15) and the upper cover (1) are the same.
4. A transmission upper cover assembly according to claim 3, wherein the first lubricating oil pipe assembly (16) comprises an oil pipe (16-1), an O-ring (16-2) and a coupling piece (16-3);
the connecting pieces (16-3) are welded at two ends of the oil pipe (16-1), the connecting pieces (16-3) are inserted into the upper cover (1), and the outer surfaces of the connecting pieces (16-3) are provided with annular grooves;
the O-shaped sealing ring (16-2) is arranged in the annular groove.
CN202010586670.1A 2020-06-24 2020-06-24 Transmission upper cover assembly Pending CN111677844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010586670.1A CN111677844A (en) 2020-06-24 2020-06-24 Transmission upper cover assembly

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Application Number Priority Date Filing Date Title
CN202010586670.1A CN111677844A (en) 2020-06-24 2020-06-24 Transmission upper cover assembly

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CN111677844A true CN111677844A (en) 2020-09-18

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08232625A (en) * 1995-02-22 1996-09-10 Kawasaki Heavy Ind Ltd Lubricating oil passage for crank case
US20040108168A1 (en) * 2001-04-21 2004-06-10 Kurt Bathe Oil supplying device
JP2005282793A (en) * 2004-03-30 2005-10-13 Mitsubishi Fuso Truck & Bus Corp Shift control device
CN202708040U (en) * 2012-08-20 2013-01-30 中国重汽集团济南动力有限公司 Gear selecting and shifting mechanism assembly for synchromesh transmission
CN104728357A (en) * 2015-03-25 2015-06-24 陕西法士特齿轮有限责任公司 Seven-gear single-box three-countershaft transmission
CN204784662U (en) * 2015-06-19 2015-11-18 西安法士特汽车传动有限公司 Gearbox controlling device that shifts
JP2017072151A (en) * 2015-10-05 2017-04-13 スズキ株式会社 Lubrication structure of transmission
CN206280471U (en) * 2016-11-28 2017-06-27 陕西法士特齿轮有限责任公司 A kind of five shift structures of shift fork axle 8
CN212480074U (en) * 2020-06-24 2021-02-05 陕西法士特汽车传动集团有限责任公司 Transmission upper cover assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08232625A (en) * 1995-02-22 1996-09-10 Kawasaki Heavy Ind Ltd Lubricating oil passage for crank case
US20040108168A1 (en) * 2001-04-21 2004-06-10 Kurt Bathe Oil supplying device
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CN202708040U (en) * 2012-08-20 2013-01-30 中国重汽集团济南动力有限公司 Gear selecting and shifting mechanism assembly for synchromesh transmission
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CN212480074U (en) * 2020-06-24 2021-02-05 陕西法士特汽车传动集团有限责任公司 Transmission upper cover assembly

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