CN2352390Y

CN2352390Y - Mechanical transmission arrangement for automobile

Info

Publication number: CN2352390Y
Application number: CN 98227529
Authority: CN
Inventors: 刘晓方; 陆建辉
Original assignee: ANHUI AUTOMOBILE PARTS Co Ltd
Current assignee: ANHUI AUTOMOBILE PARTS Co Ltd
Priority date: 1998-08-07
Filing date: 1998-08-07
Publication date: 1999-12-08
Anticipated expiration: 2008-08-07

Abstract

The utility model discloses a front-arranged and front-driven transverse mechanical transmission device suitable for saloon cars. An operating mechanism of a clutch separating device is arranged on the back end of a speed changing device. Gear shifting forks are inlaid and sheathed with each other by using a single fork shaft plate type u-shaped structure. Therefore, the self weight of the transmission device is lightened effectively, and structural dimension and components are reduced. Compared with the traditional transmission devices, the utility model has the advantages of compact structure, smooth and easy gear shifting and remote possibility of damage.

Description

The automobile machinery driver

The utility model relates to a kind of mechanical type vehicle transmission device that is particularly suitable for auto use.

At present, car all exists some defectives with mechanical type driver each several part.Be arranged in the change-speed box front end as traditional separation device and can only cooperate the bigger pressure type diaphragm-spring clutch of volume, and when separating since withdrawal bearing and disengaging of clutch refer to contact diameter bigger, slide relative speed is big, to power-transfer clutch and release thrust bearing serious wear.And for example in the change-speed box or adopt many fork shafts shifting fork mechanism, part is many, and bulking value is big, manipulation has some setbacks, or adopts the single fork axle shifting fork mechanism of sliding hub, and the shift fork support width is restricted, sliding hub and the formed friction drag of fork shaft are big, easily hinder mutually between the fork shaft.Therefore the layout that excessive volume and loose structure arrangement are unfavorable for the horizontal driver of forerunner.In addition, skidding takes place owing to limit by differential design in present car driver easily, and off-road capability is not fine.

The automobile mechanical type driver that Combination properties such as the purpose of this utility model just is to provide that a kind of volume is little, in light weight, compact conformation, shift are smooth and easy, power-transfer clutch and release thrust bearing life-span are long are further enhanced.

The purpose of this utility model is by comprising clutch release mechanism, the control fork mechanism of single fork axle, and variable transmission mechanism, the device that box of tricks is formed is realized.Clutch release mechanism is by the disengaging shaft that disengaging pawl has been installed, and disengaging pawl is the separation steering unit of axis moving with the disengaging shaft, separating push rod and release thrust bearing forms, separating the through hole that push rod axially offers from the input shaft of variable transmission mechanism passes, separation push rod and clutch engagement at the variable transmission mechanism front end, separation push rod in the variable transmission mechanism rear end cooperates with release thrust bearing, the release thrust bearing top is installed with the separation steering unit, and this actuating element with separation device arranges that from traditional change-speed box front end changing the rear end layout into can make driver be used pull-type diaphragm-spring clutch.Therefore can reduce power-transfer clutch volume and actuating force effectively.

The single fork axle shifting fork mechanism that the utility model adopts is: each grade shift fork is by fork plate, and guide plate is installed in the stay bearing plate two ends and forms u shape structure; Fork shaft passes fork plate and guide plate, each grade shift fork stay bearing plate width difference, and each grade fork plate is on the mutually nested fork shaft between other fork plate and guide plate of guide plate; Each grade shift fork is that centre of gration staggers positioning seat on the stay bearing plate of angle but each grade shift fork on same straight line with the fork shaft, like this each grade shelves interruption-forming a shelves mouth groove, can allow gear shift refer to move back and forth easily.

Between each grade shift fork mutual interlocking gear be arranged in each grade mouth and and gear shift refer to the plank frame that links.

For the overall performance that makes driver is further enhanced, therefore can also improve off-road capability on diff by the differential damping ring is set.It is near the annulus of installing rectangle spring on the semiaxis of diff that has the 0.8-1.2mm breach, and this structure can strengthen differential left right axle shaft friction on the semiaxis of the left and right sides by banding by the effect of rectangle spring.Output torque increases, thereby prevents that automobile from skidding, and improves off-road capability.

The utility model with traditional transmission device relatively, it has following good effect: 1. the separation steering unit of rear end layout can cooperate pull-type diaphragm-spring clutch, under the certain situation of transfer torque, it is the simplest that this power-transfer clutch has structure, the advantage of actuating force minimum, thereby make this driver compact conformation, weight is littler, be very suitable for the horizontal layout of preposition forerunner, meet the car trend; 2. when clutch release mechanism disengages the clutch, separate push rod and power-transfer clutch, release thrust bearing all is a contact, so the slide relative speed of contact point is very little, and parts wear is also very little; 3. the single fork axle shifting fork mechanism makes the speed-changing mechanism part still less, arranges compacter.And the stay bearing plate that shift fork structure of the present utility model utilizes Sheet Metal Forming Technology to make replaces the sliding hub of original casting, adopt the nested mode combination each other again, thereby support width can increase considerably and don't influence mutual action, so the little gear shift of frictional resistance is sliding smooth, and good hand touch; 4. the utility model mutual interlocking gear is simple, and the interlocking effect is very safe, reliable; 5. the differential damping ring set up in diff of the utility model reduces the generation of the situation of skidding, and has improved the cross-country traveling ability of automobile.Comprehensive above feature the utlity model has structure compactness more, and volume weight reduces, and manufacturing cost reduces, and manoeuvrable is smooth and easy, good hand touch, and the little off-road capability of maintenance rate waits outstanding advantage well, and overall performance is improved.Therefore be particularly suitable for doing the driver of car.

In conjunction with the accompanying drawings the utility model is described further by the following examples.

Fig. 1 is the overall structure scheme drawing of embodiment.

Fig. 2 is the shift fork structural representation.

Fig. 3 is many group shift fork combination scheme drawings.

Fig. 4 is that the A of Fig. 3 is to view.

Fig. 5 is interlock board structure assembling scheme drawing in driver.

Shown in Figure 1 is a mechanical type driver scheme drawing that preposition forerunner is horizontal, disengaging shaft 1, disengaging pawl 2 among the figure, and pull back spring 3 has constituted the handle structure of clutch release mechanism.They are installed in the rear end of change-speed box, and disengaging pawl 2 is to be enclosed within on the disengaging shaft 1 and can be around this rotation.Release thrust bearing 4 is arranged below disengaging shaft 1, and release thrust bearing has withstood separation push rod 5, separates the through hole 17 of push rod 5 from input shaft and passes through to the change-speed box front end, can cooperate with pull-type diaphragm-spring clutch.During separation, rotate disengaging shaft and by disengaging pawl 2 release thrust bearing 4 and separation push rod 5 are pushed away forward, push rod 5 promotes power-transfer clutchs, thereby disengages the clutch.

6 is differential damping rings among Fig. 1, it be on diff rectangle stage clip (8) and spring perch (7) rely on the semiaxis of diff integral central position, install have the 1.0mm breach, the cross section is the annulus of wedge shape.Damping ring 6 is under the effect of rectangle spring 8, with the conical surface of differential gear box compress endoporus is shunk and hoop on semiaxis, left and right sides semiaxis is connected indirectly by two damping rings and differential casing, so differential assembly left and right sides semiaxis output torque increase widely.

Shift shaft 9, gear shift refer to 10 and shelves mouthfuls 11,, second gear shifting fork mechanism 12, three, fourth gear shift fork 13 in Fig. 1,

fork shaft

14, and 15, five grades of shift forks of reverse speed fork 18 constitute five gear shift mechanisms.Their structure and combination are as Fig. 2, Fig. 3, shown in Figure 4.

Shown in Fig. 2 is a shift fork constructional drawing.There are vertical with it fork plate b and guide plate c in the two ends of the stay bearing plate a of this shift fork, form " U " shape structure.The drawing of total part.On the seat board a of location positioning seat 11 is arranged, the length of guide plate c is shorter than shift fork b, but saving in material and space like this.Fork shaft 14 passes from the fork shaft hole that fork plate b and guide plate c offer and is parallel with location seat board a, and support width B is the length of stay bearing plate a just, and support width B just can the design-calculated long enough like this.

Mutually nested together in conjunction with Fig. 3, Fig. 4, one, second gear shift fork 12 and three, fourth gear shift fork 13, also be the two with fork shaft 14 be centre of gration certain angle a that staggers, fork plate b each other, guide plate c extend on the guide plate c and the fork shaft 14 between the fork plate b of other shift fork.Similarly, five grades of shift forks 18, reverse speed fork 15 according to said method is assemblied on the single fork axle 14.The shelves mouthfuls 11 that each root shift fork bears from stay bearing plate a are all on same straight line.

Fig. 5 also is the side direction view of Fig. 1, mutual interlocking gear 19 is one one sideband rectangular plates jaggy, the rectangular edges that has breach is stuck in each grade mouth 11, gear shift refers to that 10 extend in the shelves 11 from breach, in case gear shift refers to 10 motions like this, mutual interlocking gear 19 also is synchronized with the movement, and gear shift refers to that 10 snap onto in certain shift fork positioning seat, and 19 of mutual interlocking gears block all the other shift forks.

Claims

1, the automobile machinery driver comprises clutch release mechanism, the control fork mechanism of single fork axle, and variable transmission mechanism, box of tricks is characterized in that:

1. clutch release mechanism is by the disengaging shaft (1) that disengaging pawl (2) have been installed and disengaging pawl (2) the separation steering unit with disengaging shaft (1) moving, separating push rod (5) and release thrust bearing (4) forms, separating the through hole (17) that push rod (5) axially offers from the input shaft (16) passes, separation push rod (5) and clutch engagement at the variable transmission mechanism front end, separation push rod (5) and release thrust bearing (4) in the variable transmission mechanism rear end, cooperate, release thrust bearing (4) top is installed with the separation steering unit;

2. each grade shift fork is installed in stay bearing plate a two ends one-tenth u shape structure by fork plate b, guide plate c; Fork shaft (14) passes fork plate b and stay bearing plate c, each grade shift fork guide plate a length difference, and each grade fork plate b is on the mutually nested fork shaft (14) between other fork plate b and guide plate c of stay bearing plate c; Each grade shift fork is the centre of gration angle that staggers with fork shaft (14), but the shelves on the guide plate a of each grade shift fork mouthfuls 11 are on same straight line.

2, automobile machinery driver according to claim 1 is characterized in that:

Mutual interlocking gear between each grade shift fork (19) refers to the plank frame that link (10) for being arranged in each grade mouth (11) and with gear shift.

3, automobile machinery driver according to claim 1 is characterized in that:

Differential damping ring (19) is near the annulus of installing diff semiaxis rectangle spring (8) that has the 0.8-1.2mm breach.