CN104712756A - Transmission shifting mechanism assembly - Google Patents

Transmission shifting mechanism assembly Download PDF

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Publication number
CN104712756A
CN104712756A CN201510096110.7A CN201510096110A CN104712756A CN 104712756 A CN104712756 A CN 104712756A CN 201510096110 A CN201510096110 A CN 201510096110A CN 104712756 A CN104712756 A CN 104712756A
Authority
CN
China
Prior art keywords
gear
shift fork
gear shift
reverse
self
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
CN201510096110.7A
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Chinese (zh)
Inventor
宋磊
贾军风
赫建勇
任明辉
吴仕赋
徐娜
钟延涛
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FAW Group Corp
Original Assignee
FAW Group Corp
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 FAW Group Corp filed Critical FAW Group Corp
Priority to CN201510096110.7A priority Critical patent/CN104712756A/en
Publication of CN104712756A publication Critical patent/CN104712756A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/031Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/32Gear shift yokes, e.g. shift forks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/34Locking or disabling mechanisms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/34Locking or disabling mechanisms
    • F16H63/36Interlocking devices

Abstract

The invention belongs to the field of automobile transmissions, and particularly relates to a transmission shifting mechanism assembly. A four-fork-shaft structure is adopted, a self-locking device, an interlocking device and a reverse gear locking device are included, and meanwhile a reverse gear and neutral position triggering mechanism is included. The transmission shifting mechanism assembly comprises a transmission upper cover, a first-second gear shifting fork shaft, a third-fourth gear shifting fork shaft, a fifth-sixth gear shifting fork shaft and a reverse gear shifting fork shaft, and altogether four shifting fork shafts are arranged. Each shifting fork shaft is fixedly provided with a gear shifting guide block and a gear shifting fork. The distribution positions of the four gear shifting guide blocks are even and form four gear selecting positions, and a rail groove which allows a gear shifting block to move is formed in the middle of the positions. Fork feet of the four gear shifting forks are in an arc shape, and the four arcs are concentric in the radial direction. The fork feet of the four gear shifting forks are inserted into a groove of a first-second gear shifting tooth sleeve, a groove of a third-fourth gear shifting tooth sleeve, a groove of a fifth-sixth gear shifting tooth sleeve and a groove of a reverse gear shifting tooth sleeve. The first-second gear shifting guide block and the first-second gear shifting fork are of an integral structure. The transmission shifting mechanism assembly is simple in structure, reliable in quality and portable in gear shifting, and improves the dynamic property, the fuel economy and the handling comfort of an entire automobile.

Description

Gearbox selector assembly
Technical field
The invention belongs to automotive transmission field, be specifically related to a kind of gearbox selector assembly.
Background technique
At present, domestic heavy-duty car market is heavily loaded, efficient, energy-conservation and reliable demand is more and more higher to car load, and gearshift mechanism is as the important component part of speed changer, increasing on the impact of car load fuel economy and handling comfort.At present, domestic existing automobile speed variator shift mechanism structure is complicated, installs and takes up room greatly, and as shift fork and fork pawl are designed to two parts, need to be connected with fork shaft through sleeve, number of spare parts is various, and shift property is unstable.In order to meet the demand of user's maximize revenue, structure is simple, reliable in quality and the light advantage of gear shift to require gearshift mechanism to have, and meanwhile, gearshift mechanism also needs the trigger feedback function of integrated neutral position and reverse gear switch signal.
Summary of the invention
The object of the present invention is to provide a kind of gearbox selector assembly, have employed four fork shaft structures, containing self-locking, interlocking and reverse gear lock device, comprise reverse gear and neutral gear trigger mechanism simultaneously.This assembly structure is simple, reliable in quality, and gear shift is light, improves handling comfort.
Technological scheme of the present invention is achieved in that gearshift mechanism assembly comprises transmission upper cover and a second gear, three fourth gear, five or six grades and reverse speed shift rod, totally four declutch shift shafts, every root declutch shift shaft is fixed with gear shift guide block and reverse shift fork, described four gear shift guide block distributing positions are even, form four gear selection position, centre has the rail slot for the movement of gear shift shifting block; The fork pin of described four reverse shift forks is circular arc, and four circular arcs are concentric in radial directions, and the fork pin of four reverse shift forks inserts in the groove of a second gear, three fourth gear, five or six grades and reverse gear gear shift tooth cover respectively.
One or two described gear shift guide blocks and a second gear reverse shift fork are overall structure, namely form the second gear reverse shift fork structure with gear shift guide block.
Five or six described gear shift shift fork tops are with commutation groove structure.
The inner hole sleeve of four described gear shift guide blocks is on four gear shift fork shafts, and gear shift guide block side has tapped hole, installs fastening screw trip bolt and be fixedly connected with corresponding gear shift fork shaft in tapped hole.
Five or six described gear shift fork shafts are fixed with commutation guide block, namely five or six gear shift fork shafts are fixed with five or six gear shift guide blocks and commutation guide block.
A described second gear, three fourth gear and reverse gear reverse shift fork inner hole sleeve are on gear shift fork shaft, and reverse shift fork side has tapped hole, install fastening screw trip bolt and be fixedly connected with corresponding gear shift fork shaft in tapped hole.
Five or six described gear shift shift fork empty sets are on a second gear gear shift fork shaft, and communtation arm is pivotally connected on the boss of transmission upper cover by commutation, can realize rotary motion.
Described neutral gear trigger mechanism comprises four gear shift fork shafts, transition axis and neutral switches; Four gear shift fork shafts and transition axis are arranged vertically; Four gear shift fork shafts are provided with diameter comparatively segment, and diameter comparatively segment and larger section of diameter adopts conical surface transition; Transition axis arranges four diameters compared with segment and the corresponding transition conical surface to four range fork conical surface of shaft corresponding positions.During speed changer engage a gear, certain root gear shift fork shaft moves along its axis, and the conical surface on it promotes the conical surface corresponding on transition axis makes transition axis to side axial motion, and the step on transition axis triggers neutral switch.
Described reverse gear trigger mechanism comprises transmission reverse speed shift fork axle, transition pin and reverse gear switch; Transmission reverse speed shift fork axle and transition pin are arranged vertically; Transmission reverse speed shift fork axle is provided with one section of groove, and groove and transmission reverse speed shift fork axle gabarit adopt chamfered transition; Transition pin one end corresponding with reverse gear shift rod inclined-plane is provided with the conical surface; When reverse gear hung by speed changer, transmission reverse speed shift fork axle moves along its axis, and the conical surface corresponding on the slope driving transition pin on it makes transition pin axially upwardly move, and the plane of the transition pin the other end triggers reverse gear switch.
Described reverse gear switch and neutral switch are arranged on transmission upper cover housing, and have Self-resetting function.
Described self-locking device comprises four gear shift fork shafts, self-locking steel ball and self-locking spring; Second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 upper surface in four gear shift fork shafts has three self-locking device arc grooves vertically; Transmission reverse speed shift fork axle 3 has two self-locking device arc grooves.Transmission reverse speed shift fork axle 3 only has two, because only have reverse gear and neutral gear two states, other fork shafts there are three, because have two gears and neutral state, third gear, fourth gear and reverse gear three kinds of states are had as three, on fourth gear gear shift fork shaft, when the gear shift of gear shift fork shaft or when getting back to neutral gear, must have a groove alignment self-locking steel ball, namely the axial position of four gear shift fork shafts is fixed.
Described interlock comprises four gear shift fork shafts, interlocking plunger and interlocking steel ball; Four gear shift fork shafts have interlock arc groove towards the side surface of steel ball, when the gear shift of gear shift fork shaft, interlocking steel ball in both sides (or one-sided) promotes interlocking steel ball by interlocking plunger and is extruded in the interlock arc groove of other fork shafts, makes it be locked at neutral position.
Described reverse gear lock device comprises reverse gear gear shift guide block, plunger and spring.
A kind of gearbox selector assembly, is made up of transmission upper cover assembly and four fork shaft assemblies; Described transmission upper cover assembly comprises transmission upper cover 19, and described four fork shaft assemblies comprise second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 and a transmission reverse speed shift fork axle 3;
A described second gear gear shift fork shaft 4 is fixed with one or two gear shift guide block 11 and second gear reverse shift forks 17, a described second gear gear shift fork shaft 4 is set with five or six gear shift shift forks 7;
Described three fourth gear gear shift fork shafts 5 are fixed with three or four gear shift guide block 12 and three fourth gear reverse shift forks 18;
Described five or six gear shift fork shafts 6 are fixed with five or six gear shift guide blocks 13 and commutation guide block 20;
Described transmission reverse speed shift fork axle 3 is fixed with reverse gear gear shift guide block 10 and reverse gear reverse shift fork 16;
Described one or two gear shift guide block 11,34 gear shift guide block 12,56 gear shift guide blocks 13 and reverse gear gear shift guide block 10 distributing position evenly, form four gear selection position.
Five or six gear shift shift fork 7,34 gear shift guide block 12,56 gear shift guide blocks 13 described in technological scheme, reverse gear gear shift guide block 10 top are all provided with commutation groove structure; Four commutation groove structures come together, and form rail slot, rail slot moves for gear shift shifting block 36.
Described in technological scheme, the fork pin of second gear reverse shift fork 17, three fourth gear reverse shift fork 18, a 56 gear shift shift fork 7 and reverse gear reverse shift fork 16 is all circular shape, and four circular arcs are concentric in radial directions;
The fork pin of described second gear reverse shift fork 17, three fourth gear reverse shift fork 18, a 56 gear shift shift fork 7, reverse gear reverse shift fork 16 inserts in the groove of one or two gear shift tooth cover 38,34 gear shift tooth cover 39,56 gear shift tooth covers 40, reverse gear gear shift tooth cover 37 respectively.
The Vertical direction of the axle of transmission reverse speed shift fork described in technological scheme 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 arranges transition axis 15;
Described transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 is all provided with diameter comparatively segment 44 on gear shift fork shaft, and on gear shift fork shaft, comparatively segment 44 and larger section of diameter adopt conical surface transition to diameter;
Described transition axis 15 to be arranged on four transition axises diameter to transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 epicone face corresponding position compared with segment 43 and the corresponding transition conical surface;
Neutral switch 14 is fixed by scyewed joint and transmission upper cover 19, and neutral switch 14 lower end arranges a steel ball, and transition axis 15 axial motion extruding steel ball is mobile to neutral switch 14 inside, triggers neutral switch 14;
Described transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6, transition axis 15 and neutral switch 14 form neutral gear trigger mechanism.
The axle 3 of transmission reverse speed shift fork described in technological scheme Vertical direction arranges transition pin 2; Transmission reverse speed shift fork axle 3, transition pin 2 and reverse gear switch 1 form reverse gear trigger mechanism; Transmission reverse speed shift fork axle 3 is provided with groove 53, and groove 53 and transmission reverse speed shift fork axle 3 gabarit adopt chamfered transition; Transition pin 2 one end corresponding with reverse gear shift rod 3 inclined-plane is provided with the conical surface;
Reverse gear switch 1 is threaded connection to be fixed with transmission upper cover 19, and reverse gear switch 1 lower end arranges a steel ball, and when transition pin 2 axially upwardly moves, upper Transverse plane extruding steel ball, triggers reverse gear switch 1.
Fast device upper cover 19 described in technological scheme is just provided with four through holes to the Vertical direction in four fork shaft holes, respectively self-locking spring and self-locking steel ball is installed;
Self-locking spring comprises self-locking spring A21, self-locking spring B23, self-locking spring C24 and self-locking spring D26;
Self-locking steel ball comprises self-locking steel ball A35, self-locking steel ball B22, self-locking steel ball C25 and self-locking steel ball D27;
Transmission reverse speed shift fork axle 3, one second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6, self-locking steel ball A35, self-locking steel ball B22, self-locking steel ball C25, self-locking steel ball D27 and self-locking spring A21, self-locking spring B23, self-locking spring C24, self-locking spring D26 form self-locking device.
Described in technological scheme, second gear gear shift fork shaft 4 upper surface is provided with self-locking device arc groove A45 vertically, and self-locking device arc groove A45 is set to three;
Described three fourth gear gear shift fork shaft 5 upper surfaces are provided with self-locking device arc groove B46 vertically, and self-locking device arc groove B46 is set to three;
Described five or six gear shift fork shaft 6 upper surfaces are provided with self-locking device arc groove C47 vertically, and self-locking device arc groove C47 is set to three;
Described transmission reverse speed shift fork axle 3 upper surface is provided with self-locking device arc groove D48 vertically, and self-locking device arc groove D48 is set to two.
The substantially horizontal of transmission upper cover 19 described in technological scheme opens a through hole, installs an interlocking steel ball between every two fork shafts;
Interlocking steel ball comprises interlocking steel ball A28, interlocking steel ball B30 and interlocking steel ball C32;
A described second gear gear shift fork shaft 4 is provided with interlock arc groove A49 towards the side surface of interlocking steel ball A28 and interlocking steel ball C32; An aperture is provided with, for installing interlocking plunger A29 in the middle of interlock arc groove A49;
Described three fourth gear gear shift fork shafts 5 are provided with interlock arc groove B50 towards the side surface of interlocking steel ball B30 and interlocking steel ball C32; An aperture is provided with, for installing interlocking plunger A31 in the middle of interlock arc groove B50;
Described five or six gear shift fork shafts 6 are provided with interlock arc groove C51 towards the side surface of interlocking steel ball B30;
Described transmission reverse speed shift fork axle 3 is provided with interlock arc groove D52 towards the side surface of interlocking steel ball A28;
Transmission reverse speed shift fork axle 3, one second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6, interlocking plunger A29, interlocking plunger B31 and interlocking steel ball A28, interlocking steel ball B30, interlocking steel ball C32 form interlock.
The shifting block of gear shift described in technological scheme 36 is fixedly connected with operating mechanism 41, moving axially and rotation, realizing gear shift shifting block 36 and moving by controlling operating mechanism 41;
The boss of described transmission upper cover 19 is provided with commutation pivot 9, described commutation pivot 9 is through the through hole on transmission upper cover 19 boss, described commutation pivot 9 extension is by nut check, and communtation arm 8 is connected on the boss of transmission upper cover 19 by commutation pivot 9; Communtation arm 8 can rotate around commutation pivot 9.
One or two gear shift guide blocks 11 described in technological scheme and a second gear reverse shift fork 17 are overall structure;
On the upside of described five or six gear shift guide blocks 13 and right side is provided with plane and coordinates with transmission upper cover 19 relevant position, prevents five or six gear shift fork shafts 6 from rotating;
Be provided with plunger 33 and spring 34 in described reverse gear gear shift guide block 10, described spring 34 is enclosed within plunger 33.
Advantageous Effects of the present invention:
Structure is simple, reliable in quality and gear shift light, improve car load power character, fuel economy and handling comfort.
Accompanying drawing explanation
Fig. 1 is the front elevation of gearshift mechanism assembly of the present invention;
Fig. 2 is the side diagram of gearshift mechanism assembly of the present invention;
Fig. 3 is the plan view of gearshift mechanism assembly of the present invention;
Fig. 4 is the oblique drawing that the present invention omits the gearshift mechanism assembly of transmission upper cover;
Fig. 5 is a second gear declutch shift shaft assembly schematic diagram of the present invention;
Fig. 6 is three shift fork shaft No 4 assembly schematic diagram of the present invention;
Fig. 7 is five or six grades of declutch shift shaft assembly schematic diagram of the present invention;
Fig. 8 is reverse speed fork axle assembly schematic diagram of the present invention;
Fig. 9 be in Fig. 3 A-A to neutral gear trigger mechanism sectional view;
Figure 10 be in Fig. 3 B-B to self-locking and mutual interlocking gear sectional view;
Figure 11 is reverse gear lock mechanism of the present invention sectional view;
Figure 12 is changement schematic diagram of the present invention;
Figure 13 is transition axis position relationship schematic diagram of the present invention;
Figure 14 is transition axis and four range fork axle position relation schematic diagram.
In figure: 1, reverse gear switch; 2, reverse gear switch pin; 3, transmission reverse speed shift fork axle; 4, a second gear gear shift fork shaft; 5, three fourth gear gear shift fork shafts; 6, five or six gear shift fork shafts; 7, five or six gear shift shift forks; 8, communtation arm; 9, commutate pivot; 10, reverse gear gear shift guide block; 11, one or two gear shift guide blocks; 12, three or four gear shift guide blocks; 13, five or six gear shift guide blocks; 14, neutral switch; 15, transition axis; 16, reverse gear reverse shift fork; 17, a second gear reverse shift fork; 18, three fourth gear reverse shift forks; 19, transmission upper cover; 20, commutate guide block; 21, self-locking spring A; 22, self-locking steel ball B; 23, self-locking spring B; 24, self-locking spring C; 25, self-locking steel ball C; 26, self-locking spring D; 27 self-locking steel ball D; 28, steel ball A is interlocked; 29, interlocking plunger A; 30, steel ball B is interlocked; 31, interlocking plunger B; 32, steel ball C is interlocked; 33, plunger is promoted; 34, piston spring; 35, self-locking steel ball A; 36, gear shift shifting block; 37, reverse gear gear shift tooth cover; 38, one or two gear shift tooth covers; 39, three or four gear shift tooth covers; 40, five or six gear shift tooth covers; 41, operating mechanism; 42, commutate groove structure; 43, diameter comparatively segment on transition axis; 44, diameter comparatively segment on gear shift fork shaft; 45, self-locking device arc groove A; 46 self-locking device arc groove B, 47 self-locking device arc groove C, 48 self-locking device arc groove D, 49, interlock arc groove A; 50, interlock arc groove B; 51, interlock arc groove C; 52, interlock arc groove D; 53, groove.
Specific embodiments
Below in conjunction with accompanying drawing, the present invention will be further described: heavy-duty transmission gearshift mechanism assembly, be made up of transmission upper cover assembly and four fork shaft assemblies, every root declutch shift shaft is fixed with gear shift guide block and reverse shift fork, gear shift guide block forms four gear selection position, the fork pin of reverse shift fork inserts in the groove of gear shift tooth cover respectively, transmission upper cover is provided with neutral gear and reverse gear switch.
Below in conjunction with accompanying drawing, embodiments of the invention are further described:
Consult Fig. 1, Fig. 4, gearshift mechanism assembly of the present invention comprises transmission upper cover 19 and second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 and a transmission reverse speed shift fork axle 3.
Consult Fig. 5, a second gear gear shift fork shaft 4 is fixed with one or two gear shift guide blocks 11 and second gear reverse shift fork 17, a 56 gear shift shift fork 7 is placed on a second gear gear shift fork shaft 4, can be free to slide;
Consult Fig. 6, three fourth gear gear shift fork shafts 5 are fixed with three or four gear shift guide block 12 and three fourth gear reverse shift forks 18;
Consult Fig. 7, five or six gear shift fork shafts 6 are fixed with five or six gear shift guide blocks 13 and commutation guide block 20;
Consult Fig. 8, transmission reverse speed shift fork axle 3 is fixed with reverse gear gear shift guide block 10 and reverse gear reverse shift fork 16.
Evenly, form four gear selection position, consult Fig. 5, one or two described gear shift guide block 11 tops are provided with commutation groove structure for described one or two gear shift guide block 11,34 gear shift guide block 12,56 gear shift guide blocks 13 and reverse gear gear shift guide block 10 distributing position; Consult Fig. 6, three or four gear shift guide blocks 12 are provided with commutation groove structure; Consult Fig. 7, five or six gear shift guide blocks 13 are provided with commutation groove structure; Consult Fig. 8, reverse gear gear shift guide block 10 is provided with commutation groove structure; Consult Fig. 3, Fig. 4, four commutation groove structures come together, and define rail slot, rail slot moves for gear shift shifting block 36; Gear shift shifting block 36 and operating mechanism 41 are fixedly connected, and moving axially and rotation, realizing gear shift shifting block 36 and moving by controlling operating mechanism 41.
The fork pin of described second gear reverse shift fork 17, three fourth gear reverse shift fork 18, a 56 gear shift shift fork 7 and reverse gear reverse shift fork 16 is circular arc, and four circular arcs are concentric in radial directions, the fork pin of second gear reverse shift fork 17, three fourth gear reverse shift fork 18, a 56 gear shift shift fork 7, reverse gear reverse shift fork 16 inserts in the groove of one or two gear shift tooth cover 38,34 gear shift tooth cover 39,56 gear shift tooth covers 40, reverse gear gear shift tooth cover 37 respectively.
Consult Fig. 5, one or two described gear shift guide blocks 11 and a second gear reverse shift fork 17 are overall structure, namely form the second gear reverse shift fork structure with gear shift guide block.
Consult Fig. 5, five or six described gear shift shift fork 7 tops are provided with commutation groove structure 42.Consulting Fig. 5 five or six gear shift shift fork 7 is the overall structures being integrated with shift fork and guide block.
Consult Fig. 5, the inner hole sleeve of one or two described gear shift guide blocks 11 is fixing on a second gear gear shift fork shaft 4;
Consult Fig. 6, the inner hole sleeve of three or four gear shift guide blocks 12 is fixing on three fourth gear gear shift fork shafts 5;
Consult Fig. 7, the inner hole sleeve of five or six gear shift guide blocks 13 is fixing on five or six gear shift fork shafts 6;
Consult Fig. 8, the inner hole sleeve of reverse gear gear shift guide block 10 is fixing on transmission reverse speed shift fork axle 3;
One or two gear shift guide block 11,34 gear shift guide block 12,56 gear shift guide blocks 13, reverse gear gear shift guide block 10 side all have tapped hole, install fastening screw trip bolt and be fixedly connected with corresponding second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5, a 56 gear shift fork shaft 6, transmission reverse speed shift fork axle 3 in tapped hole.
Consult Fig. 7, five or six described gear shift fork shafts 6 are fixed with commutation guide block 20, namely five or six gear shift fork shafts 6 are fixed with five or six gear shift guide blocks 13 and commutation guide block 20.
Consult Fig. 6, three described fourth gear reverse shift fork 18 inner hole sleeves are on three fourth gear gear shift fork shafts 5; Consult Fig. 8, reverse gear reverse shift fork 16 inner hole sleeve is on transmission reverse speed shift fork axle 3; Three fourth gear reverse shift forks 18 and reverse gear reverse shift fork 16 side all have tapped hole, install fastening screw trip bolt and be fixedly connected with transmission reverse speed shift fork axle 3 with three corresponding fourth gear gear shift fork shafts 5 in tapped hole.
Consult Fig. 5, five or six described gear shift shift fork 7 empty sets are on a second gear gear shift fork shaft 4;
Five or six gear shift fork shafts 6 are fixed with commutation guide block 20, consult Fig. 4, Fig. 7, the two ends of communtation arm 8 are installed on five or six gear shift shift forks 7 respectively commutates in the groove of groove structure 42 and commutation guide block 20, commutation pivot 9 is fixed, communtation arm 8 can rotate around commutation pivot 9, when five or six gear shift fork shafts 6 drive commutation guide block 20 to move forward, communtation arm 8 rotates, and stirs the five six gear shift shift forks 7 of empty set on a second gear range fork yoke axle 4 backward.
Consult Fig. 4, Figure 12, commutation pivot 9 is through the through hole on transmission upper cover 19 boss, and commutation pivot 9 extension by nut check, thus ensures that communtation arm 8 can rotate around commutation pivot 9.
Consult Fig. 9, Figure 14, described neutral gear trigger mechanism comprises transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6, transition axis 15 and neutral switch 14.Transmission reverse speed shift fork axle 3, one second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 and transition axis 15 are arranged vertically, transmission reverse speed shift fork axle 3, one second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 is equipped with diameter comparatively segment 44 on gear shift fork shaft, and on gear shift fork shaft, comparatively segment 44 and larger section of diameter adopt conical surface transition to diameter; Transition axis 15 to be arranged on four transition axises diameter to transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 epicone face corresponding position compared with segment 43 and the corresponding transition conical surface.
Consult Figure 14, during speed changer engage a gear, have one in transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 to move along its axis, the conical surface on it promotes the conical surface corresponding on transition axis 15 makes transition axis 15 to side axial motion.Consult Fig. 9, neutral switch 14 is fixed by scyewed joint and transmission upper cover 19, and a steel ball is arranged in neutral switch 14 lower end, and step extruding steel ball during transition axis 15 axial motion on it is mobile to neutral switch 14 inside, thus triggers neutral switch 14.
Consult Fig. 1, Fig. 4, Fig. 8, described reverse gear trigger mechanism comprises transmission reverse speed shift fork axle 3, transition pin 2 and reverse gear switch 1; Consult Fig. 8, transmission reverse speed shift fork axle 3 and transition pin 2 are arranged vertically; Transmission reverse speed shift fork axle 3 is provided with groove 53, and groove 53 and transmission reverse speed shift fork axle 3 gabarit adopt chamfered transition; Transition pin 2 one end corresponding with reverse gear shift rod 3 inclined-plane is provided with the conical surface; When reverse gear hung by speed changer, transmission reverse speed shift fork axle 3 moves along its axis, and the conical surface corresponding on the slope driving transition pin 2 on it makes transition pin 2 axially upwardly move.Reverse gear switch 1 is threaded connection to be fixed with transmission upper cover 19, and a steel ball is arranged in reverse gear switch 1 lower end, and when transition pin 2 axially upwardly moves, upper Transverse plane extruding steel ball, triggers reverse gear switch 1.
Consult Figure 10, self-locking device comprises transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6, self-locking steel ball A35, self-locking steel ball B22, self-locking steel ball C25, self-locking steel ball D27 and self-locking spring A21, self-locking spring B23, self-locking spring C24, self-locking spring D26;
Consult Figure 10, transmission upper cover 19 just has four through holes to the Vertical direction in four fork shaft holes, respectively self-locking spring and self-locking steel ball are installed; Four fork shaft holes refer to the hole of transmission upper cover 19 being installed respectively transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 four fork shafts.Consult Figure 10, four through holes, first put into self-locking steel ball, drop on corresponding fork shaft, put into self-locking spring again, upper end face can be pushed down by another part structure (belonging to transmission upper cover assembly), and self-locking steel ball and self-locking spring are in through-holes, lower end is fork shaft, and upper end is transmission upper cover assembly.
Consult Fig. 5, second gear gear shift fork shaft 4 upper surface is provided with self-locking device arc groove A45 vertically, and self-locking device arc groove A45 is set to three; Steel ball is neutral gear when the self-locking device arc groove of centre, two, both sides self-locking device arc groove is respectively and puts in the first speed and steel ball position during second gear, during engage a gear, one second gear gear shift fork shaft 4 will move forward and backward, during engage a gear, steel ball drops in certain self-locking device arc groove of both sides, shelves of wanting to make the return trip empty need a second gear gear shift fork shaft 4 move the power overcome on steel ball and spring, and steel ball is upwardly fallen into intermediate groove to depart from both sides self-locking device arc groove.
Consult Fig. 6, three fourth gear gear shift fork shaft 5 upper surfaces are provided with self-locking device arc groove B46 vertically, and self-locking device arc groove B46 is set to three;
Consult Fig. 7, five or six gear shift fork shaft 6 upper surfaces are provided with self-locking device arc groove C47 vertically, and self-locking device arc groove C47 is set to three;
Consult Fig. 8, transmission reverse speed shift fork axle 3 upper surface is provided with self-locking device arc groove D48 vertically, and self-locking device arc groove D48 is set to two;
When gear shift or when getting back to neutral gear, one in a self-locking device arc groove aligning self-locking steel ball A35, self-locking steel ball B22, self-locking steel ball C25, self-locking steel ball D27 must be had, namely the axial position of corresponding transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6 is fixed, and prevents out of supply.During gear shift, a certain fork shaft moves, and corresponding steel ball will fall in the groove of corresponding fork shaft; One, during second gear, self-locking steel ball C 25 falls in the self-locking device arc groove A45 on a second gear gear shift fork shaft 4; Three, during fourth gear, self-locking steel ball B 22 falls in the self-locking device arc groove B46 on three fourth gear gear shift fork shafts 5; Five, six grades time, self-locking steel ball A35 falls in the self-locking device arc groove C47 on five or six gear shift fork shafts 6; During reverse gear, self-locking steel ball D 27 falls in the self-locking device arc groove D48 on transmission reverse speed shift fork axle 3;
Consult Figure 10, interlock comprises transmission reverse speed shift fork axle 3, second gear gear shift fork shaft 4, three fourth gear gear shift fork shaft 5,56 gear shift fork shaft 6, interlocking plunger A29, interlocking plunger B31 and interlocking steel ball A28, interlocking steel ball B30, interlocking steel ball C32;
Consult Figure 10, upper cover 19 has four of spring endways holes are four holes of installing self-locking spring and self-locking steel ball, these four holes are just to four through holes of the Vertical direction in four fork shaft holes on transmission upper cover 19, install self-locking spring and self-locking steel ball respectively;
The direction that four holes are perpendicular therewith, namely transmission upper cover 19 substantially horizontal opens a through hole, installs an interlocking steel ball between every two fork shafts; Consult Figure 10, through hole is herein interlocking steel ball A28, interlocking steel ball B 30, interlocking steel ball C 32 come that through hole together, consult Fig. 5, an aperture is provided with in the middle of interlock arc groove A49, for installing interlocking plunger A29, consulting Fig. 6, in the middle of interlock arc groove B50, being provided with an aperture, for installing interlocking plunger A31.
Consult Fig. 5, a second gear gear shift fork shaft 4 is provided with interlock arc groove A49 towards the side surface of interlocking steel ball A28 and interlocking steel ball C32;
Consult Fig. 6, three fourth gear gear shift fork shafts 5 are provided with interlock arc groove B50 towards the side surface of interlocking steel ball B30 and interlocking steel ball C32;
Consult Fig. 7, five or six gear shift fork shafts 6 are provided with interlock arc groove C51 towards the side surface of interlocking steel ball B30;
Consult Fig. 8, transmission reverse speed shift fork axle 3 is provided with interlock arc groove D52 towards the side surface of interlocking steel ball A28;
When the gear shift of gear shift fork shaft, both sides (or one-sided) interlocking steel ball promotes interlocking steel ball by interlocking plunger and is extruded in the groove of other gear shift fork shafts, makes it be locked at neutral position.
Consult Fig. 4 and Fig. 7, on the upside of five or six gear shift guide blocks 13 and right side is provided with plane and coordinates with transmission upper cover 19 relevant position, realizes preventing five or six gear shift fork shafts 6 from rotating.
Consult Fig. 4, Fig. 8 and Figure 11, reverse gear gear shift guide block 10 is equipped with plunger 33 and spring 34, and when driving will hang reverse gear, gear shift shifting block 36 promotes plunger 33, and Compress Spring 34, need to overcome spring force and gear shift shifting block 36 just can be made to enter in the commutation groove structure of reverse gear gear shift guide block 10; Consult Fig. 8, having an outstanding socket cap in the middle part of the groove of reverse gear gear shift guide block 10, is exactly the promotion plunger 33 in Figure 11.
Consult Fig. 1 ~ Figure 10, the working procedure of gearshift mechanism of the present invention in automotive transmission is as follows:
To operate speed changer three, fourth gear, the gear shift of pilot control gear change hand lever, drives gear shift shifting block 36 to promote three or four gear shift guide blocks 12 by leverage or drawing cable mechanism and moves forward and backward;
Consult Fig. 6, three or four gear shift guide blocks 12 are provided with commutation groove structure, gear shift shifting block 36 can rotate around operating mechanism 41, when having angle to rotate, gear shift shifting block 36 will promote the side arm of commutation groove structure, drive three or four gear shift guide blocks 12 along three, fourth gear gear shift fork shaft 5 move axially, so drive three, fourth gear gear shift fork shaft 5 moves.
Consult Fig. 6, the three fourth gear gear shift fork shafts 5 be fixedly connected with three or four gear shift guide blocks 12 drive three fourth gear reverse shift forks 18 to move forward and backward;
Consult Fig. 4, three fourth gear reverse shift forks 18 promote three or four gear shift tooth covers 39 and move forward and backward, and with three-range transmission or fourth gear spline fitted transfer motion power, speed changer realizes third gear or fourth gear;
Simultaneously, consult Figure 10, when three fourth gear gear shift fork shafts 5 are forward or when moving axially backward, promote interlocking steel ball B30 and interlock steel ball C32 to move to both sides, locking is realized in the interlock arc groove C51 that interlocking steel ball B30 clamp-ons five or six gear shift fork shafts 6, interlocking steel ball C32 clamp-ons in a second gear gear shift fork shaft 4 interlock arc groove A49 and realizes locking, meanwhile, interlocking plunger A29 to the left mobile interlocking steel ball A28 is clamp-oned in transmission reverse speed shift fork axle 3 interlock arc groove D52 realize locking; When three fourth gear gear shift fork shafts 5 move axially, drive transition axis 15 to move axially to side, trigger neutral switch 14; When three fourth gear gear shift fork shaft 5 gear shift put in place, self-locking steel ball B22 falls into the some of self-locking device arc groove B46 both sides on three fourth gear gear shift fork shafts 5, and specifically which, corresponding with extension third gear, fourth gear.Three self-locking device arc groove B46 are groove structures, after steel ball falls into, its length on steel ball is elongated, if think steel ball from groove out, need upwardly steel ball, overcome the compressive force that spring produces, so serve self-locking action, in the middle of three self-locking device arc groove B46, that is neutral state, and the left side is third gear, and the right is fourth gear; Realize locking, now, whole gearshift procedure terminates.
Speed changer one, second gear gearshift procedure, the gear shift of pilot control gear change hand lever, drives gear shift shifting block 36 to promote one or two gear shift guide blocks 11 by leverage or drawing cable mechanism and moves forward and backward;
Consult Fig. 5, one or two gear shift guide blocks 11 are provided with gear shift groove structure; Gear shift shifting block 36 can rotate around operating mechanism 41, and when having angle to rotate, gear shift shifting block 36 will promote the side arm of gear shift groove structure, drives one or two gear shift guide blocks 11 along one, second gear gear shift fork shaft 4 moves axially, so drive one, second gear gear shift fork shaft 4 moves.
Consult Fig. 5, a second gear reverse shift fork 17 and 1 gear shift guide block 11 is overall structure, moves forward and backward together with the second gear gear shift fork shaft 4 that a second gear reverse shift fork 17 and one or two gear shift guide blocks 11 are fixedly connected with;
In the space of speed changer is arranged, three, four gear shift guide blocks 12 and three, fourth gear reverse shift fork 18 have certain distance in the horizontal direction, cannot overall structure be become, and one or two gear shift guide blocks 11 and a second gear reverse shift fork 17 just in time to together with, overall structure can be made;
Five or six gear shift shift fork 7 empty sets are to commutate one, on second gear gear shift fork shaft 4, the adjustment that need commutate is arranged according to transmission internal axle tooth, in order to specifically in order to ensure that driver's gear shifting handle can regularly follow, as being forward 1,3,5 grade, be 2,4,6 grades backward, if do not commutated, being then forward 1,3,6 grade, is 2,4,5 grades backward;
Consult Fig. 4, a second gear reverse shift fork 17 promotes one or two gear shift tooth covers 38 and moves forward and backward, and with one grade of gear or intermediate gear spline fitted transfer motion power, speed changer realizes one grade or second gear;
Simultaneously, consult Figure 10, when a second gear gear shift fork shaft 4 is forward or when moving axially backward, promote interlocking steel ball A28 and interlock steel ball C32 to move to both sides, interlocking steel ball A28 clamp-ons in transmission reverse speed shift fork axle 3 interlock arc groove D52 and realizes locking, interlocking steel ball C32 clamp-ons in three fourth gear gear shift fork shaft 5 interlock arc groove B50 and realizes locking, and meanwhile, interlocking plunger B31 to the right mobile interlocking steel ball B30 is clamp-oned in five or six gear shift fork shaft 6 interlock arc groove C51 realizes locking; When a second gear gear shift fork shaft 4 moves axially, drive transition axis 15 to move axially to side, trigger neutral switch 14; When second gear gear shift fork shaft 4 gear shift puts in place, self-locking steel ball C25 falls into the some of self-locking device arc groove A45 both sides on a second gear gear shift fork shaft 4, specifically which, with put in the first speed, second gear is corresponding.Three self-locking device arc groove A45 are groove structures, after steel ball falls into, its length on steel ball is elongated, if think steel ball from groove out, need upwardly steel ball, overcome the compressive force that spring produces, so serve self-locking action, in the middle of three self-locking device arc groove A45, that is neutral state, and the left side is one grade, and the right is second gear; Realize locking, now, whole gearshift procedure terminates.
Speed changer five, six gear shift process, the gear shift of pilot control gear change hand lever, drives gear shift shifting block 36 to promote five or six gear shift guide blocks 13 by leverage or drawing cable mechanism and moves forward and backward;
Consult Fig. 7, five or six gear shift guide blocks 13 are provided with gear shift groove structure, and gear shift shifting block 36 can rotate around operating mechanism 41, and when having angle to rotate, gear shift shifting block 36 will promote the side arm of gear shift groove structure;
Consult Fig. 7, five or the six gear shift fork shafts 6 be fixedly connected with five or six gear shift guide blocks 13 drive the guide block 20 that commutates to move forward and backward, and commutation guide block 20 promotes communtation arm 8 and rotates around commutation pivot 9;
The two ends of communtation arm 8 are installed on five or six gear shift shift forks 7 respectively commutates in the groove of groove structure 42 and commutation guide block 20, commutation pivot 9 is fixed, communtation arm 8 can rotate around commutation pivot 9, when five or six gear shift fork shafts 6 drive commutation guide block 20 to move forward, communtation arm 8 rotates, and stirs the five six gear shift shift forks 7 of empty set on a second gear range fork yoke axle 4 backward.
Consult Figure 13, communtation arm 8 the other end promotes commutation groove structure 42 sidewall on five or six gear shift shift forks 7, five or six gear shift shift forks 7 are moved forward and backward, five or six gear shift shift forks 7 promote five or six gear shift tooth covers 40 and move forward and backward, with five grades of gears or six shift of gears spline fitted transfer motion power, speed changer realizes five grades or six grades;
Simultaneously, consult Figure 10, when five or six gear shift fork shafts 6 are forward or when moving axially backward, promote interlocking steel ball B30 to be moved to the left, interlocking steel ball B30 clamp-ons in three fourth gear gear shift fork shaft 5 interlock arc groove B50 and realizes locking, interlocking plunger B31 to the left mobile interlocking steel ball C32 is clamp-oned in one or two gear shift fork shaft 4 interlock arc groove A49 realizes locking, and interlocking plunger A29 to the left mobile interlocking steel ball A28 is clamp-oned in reverse gear fork shaft 3 interlock arc groove D52 realizes locking; When five or six gear shift fork shafts 6 move axially, drive transition axis 15 to move axially to side, trigger neutral switch 14; When five or six gear shift fork shaft 6 gear shift put in place, self-locking steel ball A35 falls into the some of self-locking device arc groove C47 both sides on five or six gear shift fork shafts 6, specifically which, with extension five grades, six grades corresponding.Three self-locking device arc groove C47 are groove structures, after steel ball falls into, its length on steel ball is elongated, if think steel ball from groove out, need upwardly steel ball, overcome the compressive force that spring produces, so serve self-locking action, in the middle of three self-locking device arc groove C47, that is neutral state, and the left side is five grades, and the right is six grades; Realize locking, now, whole gearshift procedure terminates.
Speed variator reverse gear gearshift procedure, the gear shift of pilot control gear change hand lever, drives gear shift shifting block 36 to promote reverse gear gear shift guide block 10 by leverage or drawing cable mechanism and moves backward;
Consult Fig. 8, reverse gear gear shift guide block 10 is provided with gear shift groove structure, gear shift shifting block 36 can rotate around operating mechanism 41, when having angle to rotate, gear shift shifting block 36 will promote the side arm of gear shift groove structure, drive reverse gear gear shift guide block 10 to move axially along transmission reverse speed shift fork axle 3, and then drive transmission reverse speed shift fork axle 3 to move.
Consult Fig. 8, the transmission reverse speed shift fork axle 3 be fixedly connected with reverse gear gear shift guide block 10 drives reverse gear reverse shift fork 16 to move backward;
Consult Fig. 4, reverse gear reverse shift fork 16 promotes reverse gear gear shift tooth cover 37 and moves backward, and with reverse gear spline fitted transfer motion power, speed changer realizes reverse gear;
Simultaneously, consult Figure 10, when transmission reverse speed shift fork axle 3 moves axially backward, promote interlocking steel ball A28 to move right, interlocking steel ball A28 clamp-ons in a second gear gear shift fork shaft 4 interlock arc groove A49 and realizes locking, interlocking plunger A29 to the right mobile interlocking steel ball C32 is clamp-oned in three or four gear shift fork shaft 5 interlock arc groove B50 realizes locking, and interlocking plunger B31 to the right mobile interlocking steel ball B30 is clamp-oned in five or six gear shift fork shaft 6 interlock arc groove C51 realizes locking; When transmission reverse speed shift fork axle 3 moves axially, drive transition axis 15 to move axially to side, trigger neutral switch 14; Transmission reverse speed shift fork axle 3 moves axially and also acts on reverse gear switch pin 2 simultaneously, trigger reverse gear switch 1 and realize reverse range signal transmission, when transmission reverse speed shift fork axle 3 gear shift puts in place, self-locking steel ball D27 falls into a self-locking device arc groove D48 in the left side on transmission reverse speed shift fork axle 3, realize locking, now, whole gearshift procedure terminates.

Claims (10)

1. a gearbox selector assembly, is made up of transmission upper cover assembly and four fork shaft assemblies; Described transmission upper cover assembly comprises transmission upper cover (19), and described four fork shaft assemblies comprise a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shafts (6) and transmission reverse speed shift fork axle (3); It is characterized in that:
A described second gear gear shift fork shaft (4) is fixed with one or two gear shift guide blocks (11) and a second gear reverse shift fork (17), a described second gear gear shift fork shaft (4) is set with five or six gear shift shift forks (7);
Described three fourth gear gear shift fork shafts (5) are fixed with three or four gear shift guide blocks (12) and three fourth gear reverse shift forks (18);
Described five or six gear shift fork shafts (6) are fixed with five or six gear shift guide blocks (13) and commutation guide block (20);
Described transmission reverse speed shift fork axle (3) is fixed with reverse gear gear shift guide block (10) and reverse gear reverse shift fork (16);
Described one or two gear shift guide blocks (11), three or four gear shift guide blocks (12), five or six gear shift guide blocks (13) and reverse gear gear shift guide block (10) distributing position are even, form four gear selection position.
2. a kind of gearbox selector assembly according to claim 1, is characterized in that:
Five or six described gear shift shift forks (7), three or four gear shift guide blocks (12), five or six gear shift guide blocks (13), reverse gear gear shift guide block (10) top are all provided with commutation groove structure; Four commutation groove structures come together, and form rail slot, rail slot is mobile for gear shift shifting block (36).
3. a kind of gearbox selector assembly according to claim 1, is characterized in that:
The fork pin of a described second gear reverse shift fork (17), three fourth gear reverse shift forks (18), five or six gear shift shift forks (7) and reverse gear reverse shift fork (16) is all circular shape, and four circular arcs are concentric in radial directions;
The fork pin of a described second gear reverse shift fork (17), three fourth gear reverse shift forks (18), five or six gear shift shift forks (7), reverse gear reverse shift fork (16) inserts in the groove of one or two gear shift tooth covers (38), three or four gear shift tooth covers (39), five or six gear shift tooth covers (40), reverse gear gear shift tooth cover (37) respectively.
4. a kind of gearbox selector assembly according to claim 1, is characterized in that:
The Vertical direction of described transmission reverse speed shift fork axle (3), a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shafts (6) arranges transition axis (15);
Described transmission reverse speed shift fork axle (3), a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shafts (6) are all provided with diameter comparatively segment (44) on gear shift fork shaft, on gear shift fork shaft, comparatively segment (44) and larger section of diameter adopt conical surface transition to diameter;
Described transition axis (15) is upper arranges diameter comparatively segment (43) and the corresponding transition conical surface on four transition axises to transmission reverse speed shift fork axle (3), a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shaft (6) epicone face corresponding positions;
Neutral switch (14) is fixed by scyewed joint and transmission upper cover (19), neutral switch (14) lower end arranges a steel ball, transition axis (15) axial motion extruding steel ball is mobile to neutral switch (14) inside, triggers neutral switch (14);
Described transmission reverse speed shift fork axle (3), a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shafts (6), transition axis (15) and neutral switch (14) form neutral gear trigger mechanism.
5. a kind of gearbox selector assembly according to claim 1, is characterized in that:
Described transmission reverse speed shift fork axle (3) Vertical direction arranges transition pin (2); Transmission reverse speed shift fork axle (3), transition pin (2) and reverse gear switch (1) form reverse gear trigger mechanism; Transmission reverse speed shift fork axle (3) is provided with groove (53), and groove (53) and transmission reverse speed shift fork axle (3) gabarit adopt chamfered transition; Transition pin (2) one end corresponding with reverse gear shift rod (3) inclined-plane is provided with the conical surface;
Reverse gear switch (1) is threaded connection to be fixed with transmission upper cover (19), reverse gear switch (1) lower end arranges a steel ball, when transition pin (2) axially upwardly moves, upper Transverse plane extruding steel ball, triggers reverse gear switch (1).
6. a kind of gearbox selector assembly according to claim 1, is characterized in that:
Described fast device upper cover (19) is just provided with four through holes to the Vertical direction in four fork shaft holes, respectively self-locking spring and self-locking steel ball is installed;
Self-locking spring comprises self-locking spring A (21), self-locking spring B (23), self-locking spring C (24) and self-locking spring D (26);
Self-locking steel ball comprises self-locking steel ball A (35), self-locking steel ball B (22), self-locking steel ball C (25) and self-locking steel ball D (27);
Transmission reverse speed shift fork axle (3), a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shafts (6), self-locking steel ball A (35), self-locking steel ball B (22), self-locking steel ball C (25), self-locking steel ball D (27) and self-locking spring A (21), self-locking spring B (23), self-locking spring C (24), self-locking spring D (26) form self-locking device.
7. a kind of gearbox selector assembly according to claim 1, is characterized in that:
Described second gear gear shift fork shaft (4) upper surface is provided with self-locking device arc groove A (45) vertically, and self-locking device arc groove A (45) is set to three;
Described three fourth gear gear shift fork shaft (5) upper surfaces are provided with self-locking device arc groove B (46) vertically, and self-locking device arc groove B (46) is set to three;
Described five or six gear shift fork shaft (6) upper surfaces are provided with self-locking device arc groove C (47) vertically, and (47 are set to three to self-locking device arc groove C;
Described transmission reverse speed shift fork axle (3) upper surface is provided with self-locking device arc groove D (48) vertically, and self-locking device arc groove D (48) is set to two.
8. a kind of gearbox selector assembly according to claim 1, is characterized in that:
Described transmission upper cover (19) substantially horizontal opens a through hole, installs an interlocking steel ball between every two fork shafts;
Interlocking steel ball comprises interlocking steel ball A (28), interlocking steel ball B (30) and interlocking steel ball C (32);
A described second gear gear shift fork shaft (4) is provided with interlock arc groove A (49) towards the side surface of interlocking steel ball A (28) and interlocking steel ball C (32); An aperture is provided with, for installing interlocking plunger A (29) in the middle of interlock arc groove A (49);
Described three fourth gear gear shift fork shafts (5) are provided with interlock arc groove B (50) towards the side surface of interlocking steel ball B (30) and interlocking steel ball C (32); An aperture is provided with, for installing interlocking plunger A (31) in the middle of interlock arc groove B (50);
Described five or six gear shift fork shafts (6) are provided with interlock arc groove C (51) towards the side surface of interlocking steel ball B (30);
Described transmission reverse speed shift fork axle (3) is provided with interlock arc groove D (52) towards the side surface of interlocking steel ball A (28);
Transmission reverse speed shift fork axle (3), a second gear gear shift fork shaft (4), three fourth gear gear shift fork shafts (5), five or six gear shift fork shafts (6), interlocking plunger A (29), interlocking plunger B (31) and interlocking steel ball A (28), interlocking steel ball B (30), interlocking steel ball C (32) form interlock.
9. a kind of gearbox selector assembly according to claim 2, is characterized in that:
Described gear shift shifting block (36) is fixedly connected with operating mechanism (41), moving axially and rotation, realizing gear shift shifting block (36) mobile by controlling operating mechanism (41);
The boss of described transmission upper cover (19) is provided with commutation pivot (9), described commutation pivot (9) is through the through hole on transmission upper cover (19) boss, described commutation pivot (9) extension is by nut check, and communtation arm (8) is connected on the boss of transmission upper cover (19) by commutation pivot (9); Communtation arm (8) can rotate around commutation pivot (9).
10. a kind of gearbox selector assembly according to claim 1, is characterized in that:
One or two described gear shift guide blocks (11) and a second gear reverse shift fork (17) are overall structure;
Described five or six gear shift guide block (13) upsides and right side are provided with plane and coordinate with transmission upper cover (19) relevant position, prevent five or six gear shift fork shafts (6) from rotating;
Be provided with plunger (33) and spring (34) in described reverse gear gear shift guide block (10), described spring (34) is enclosed within plunger (33).
CN201510096110.7A 2015-03-04 2015-03-04 Transmission shifting mechanism assembly Pending CN104712756A (en)

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CN105172595A (en) * 2015-09-01 2015-12-23 瑞立集团瑞安汽车零部件有限公司 Forced downshift device and installation method thereof
CN105864406A (en) * 2016-05-30 2016-08-17 重庆青山工业有限责任公司 Assembling device for front-engine front-drive automobile transmission assembly shafting
CN106051151A (en) * 2016-08-15 2016-10-26 中国第汽车股份有限公司 Transmission head cover assembly
CN110966405A (en) * 2019-12-29 2020-04-07 一汽解放汽车有限公司 Special integrated gear shifting control mechanism for front and rear split-shell transmission

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CN105172595A (en) * 2015-09-01 2015-12-23 瑞立集团瑞安汽车零部件有限公司 Forced downshift device and installation method thereof
CN105864406A (en) * 2016-05-30 2016-08-17 重庆青山工业有限责任公司 Assembling device for front-engine front-drive automobile transmission assembly shafting
CN106051151A (en) * 2016-08-15 2016-10-26 中国第汽车股份有限公司 Transmission head cover assembly
CN110966405A (en) * 2019-12-29 2020-04-07 一汽解放汽车有限公司 Special integrated gear shifting control mechanism for front and rear split-shell transmission

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Application publication date: 20150617