CN204553715U - The gearbox of tape synchronizer - Google Patents

Abstract

The utility model discloses a kind of gearbox of tape synchronizer, first axle has from left to right been fixedly connected sequentially low speed gear and high gear, second axle is from left to right connected with high low speed gear, the first synchronizer, intermediate gear, one grade of gear, the second synchronizer, reverse gear in turn, described high low speed gear and described second axle are slidably connected, and described first synchronizer, the second synchronizer are fixedly connected with described second axle.The utility model, is applied in engineering machinery, and it has following advantage: 1. the application of synchronizer on construction machinery gear box makes gearshift smoothly submissive; 2. before synchronization mechanism gearbox, I gear falls the conversion of I gear same straight line, simple operation and hommization, is applicable to the work characteristics that engineering machinery forward gear retreats gear frequent transitions; 3. synchronization mechanism shifting fork shafts of gearbox cabinet front is given prominence to, and is connected on steering column operates with flexible axle, and liberation riding space, operates more humane; 4. this gearbox Applicable scope is wider.

Description

The gearbox of tape synchronizer

Technical field

The utility model belongs to engineering mechanical device technical field, particularly relates to a kind of gearbox of tape synchronizer.

Background technique

Because transmission input shaft and engine output shaft rotate with respective speed, during conversion gear, " synchronously " problem can be there is.Two different gears of rotational speed engage by force and impact will inevitably occur, and damage gear.Therefore, the gear shift of old-fashioned speed changer will adopt the mode of " bipod clutch ", upshift neutral position stop a moment (but clutch need lift, object is to allow clutch plate also want and flywheel synchronization, just rotating speed must unanimously can engage a gear smoothly, if gear shift is slow, rotating speed falls idling, also cannot hang into), downshift will at neutral position (keep clutch lift) open out simultaneously, to reduce the speed discrepancy of gear.But this operates more complicated, be difficult to grasp accurately.

In order to solve the problem, current people have devised synchronizer, and as shown in Figure 2, it is primarily of compositions such as clutch collar, synchronous lock rings, and its feature relies on rubbing action to realize synchronously.The gear ring of clutch collar, synchronous lock ring and gear to be joined all has chamfering (angle of lock), and the inner conical surface of synchronous lock ring contacts to produce with gear-wheel gear-ring male cone (strobilus masculinus) to be joined and rubs.Suitable selection done by angle of lock and the conical surface when designing, conical surface friction makes tooth cover to be engaged synchronous rapidly with gear ring, can produce again a kind of locking effect simultaneously, prevent gear from engaging at advanced in unison row.After synchronous lock ring inner conical surface contacts with gear-wheel gear-ring male cone (strobilus masculinus) to be joined, (or rising) is reduced rapidly to equal with synchronous lock ring rotating speed at the effect lower gear rotating speed of friction torque, both synchronous rotaries, gear is zero relative to the rotating speed of synchronous lock ring, thus moment of inertia also disappears simultaneously, at this moment under the promotion of active force, clutch collar engages with synchrolock annular gear in the clear, and engages with the gear ring of gear to be joined further and complete gearshift procedure.

Current, synchronizer has been applied in the middle of gearbox in the car, and in the middle of the gearbox how being applied in engineering machinery, need further research.

Summary of the invention

The purpose of this utility model is to provide a kind of gearbox of tape synchronizer, cannot be applied in problem in the gearbox of engineering machinery to solve the synchronizer existed in prior art.

For realizing the purpose of this utility model, the utility model provides a kind of gearbox of tape synchronizer, comprising: the first axle and the second axle, high low speed gear, low speed gear, high gear, synchronizer, intermediate gear, one grade of gear, first synchronizer, second synchronizer, reverse gear, described first axle has from left to right been fixedly connected sequentially low speed gear and high gear, and described second axle is from left to right connected with high low speed gear in turn, first synchronizer, intermediate gear, one grade of gear, second synchronizer, reverse gear, described high low speed gear and described second axle are slidably connected, described first synchronizer, second synchronizer is fixedly connected with described second axle, described intermediate gear, one grade of gear, reverse gear dallies with described second axle and is connected, when changing second gear, by described first synchronizer with described intermediate gear engagement, shift gears, when changing one grade, by described second synchronizer with described one grade of gears meshing, shift gears, when changing reverse gear, by described second synchronizer with described reverse gear engagement, shift gears.

Preferably, described first synchronizer and the second synchronizer include synchronous lock ring and clutch collar, during gear shift, make clutch collar and one grade of gear or intermediate gear or reverse gear engagement by synchronous lock ring.

Preferably, described first synchronizer and the second synchronizer are lock ring type synchronizer.

The utility model, compared with prior art, provide a kind of gearbox of tape synchronizer, can be applicable in engineering machinery, it has following advantage: 1. the application of synchronizer on construction machinery gear box makes gearshift smoothly submissive; 2. before synchronization mechanism gearbox, I gear falls the conversion of I gear same straight line, simple operation and hommization, is applicable to the work characteristics that engineering machinery forward gear retreats gear frequent transitions; 3. synchronization mechanism shifting fork shafts of gearbox cabinet front is given prominence to, and is connected on steering column operates with flexible axle, and liberation riding space, operates more humane; 4. before speed high speed reach 35 kilometers/time, front fall the low 3--6 kilometer/hour of speed, this gearbox Applicable scope is wider.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of synchronizer of the present utility model;

In figure: 1-height low speed gear, 2-low speed gear, 3-high gear, 4-first synchronizer, 5-intermediate gear, 6-mono-grade of gear, 7-second synchronizer, 8-reverse gear, 9-first axle, 10-second axle, the synchronous lock ring of 41-, 42-clutch collar.

Embodiment

In order to make the purpose of this utility model, technological scheme and beneficial effect clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be understood to specific embodiment described herein only in order to explain the utility model, be not limited to protection domain of the present utility model.

Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification of the present utility model " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.

Should be appreciated that, when we claim parts to be "connected" to another parts, it can be directly connected to other elements, or also can there is intermediate member.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.

Should be appreciated that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.

As Fig. 1, shown in Fig. 2, the utility model provides a kind of gearbox of tape synchronizer, comprising: the first axle and the second axle, high low speed gear, low speed gear, high gear, synchronizer, intermediate gear, one grade of gear, first synchronizer, second synchronizer, reverse gear, described first axle has from left to right been fixedly connected sequentially low speed gear and high gear, and described second axle is from left to right connected with high low speed gear in turn, first synchronizer, intermediate gear, one grade of gear, second synchronizer, reverse gear, described high low speed gear and described second axle are slidably connected, described first synchronizer, second synchronizer is fixedly connected with described second axle, described intermediate gear, one grade of gear, reverse gear dallies with described second axle and is connected, when changing second gear, by described first synchronizer with described intermediate gear engagement, shift gears, when changing one grade, by described second synchronizer with described one grade of gears meshing, shift gears, when changing reverse gear, by described second synchronizer with described reverse gear engagement, shift gears.

Preferably, described first synchronizer and the second synchronizer include synchronous lock ring and clutch collar, during gear shift, make clutch collar and one grade of gear or intermediate gear or reverse gear engagement by synchronous lock ring.

Preferably, described first synchronizer and the second synchronizer are lock ring type synchronizer.

The working principle of lock ring type synchronizer in gearbox is:

The splined hub of lock ring type synchronizer has three grooves, being wherein placed with can along the slide block of groove movement.Slide block presses to clutch collar by two spring rings, and the projection in the middle of slide block is just in time against in the inner groove of clutch collar.Synchronous lock ring should have three breach mutually, and the two ends of three slide blocks are stretched in the breach of lock ring.A breach spline facewidth larger than the width of slide block of synchronous lock ring.During gearshift, clutch collar is with movable slider to be pressed to by synchronous lock ring and is engaged gear ring cone of friction under the promotion of gear shifting force.Because synchronizer input end output terminal exists speed discrepancy, the synchronous friction torque therefore produced between cone of friction can make synchronous lock ring turn over an angle relative to clutch collar, until one end of slide block is located with contacting of lock ring breach.Now clutch collar spline tooth locking face mutually compresses with synchronous lock ring spline tooth locking face and produces ring moment.Now ring moment is less than synchronous friction torque, when synchronizer input end output terminal rotating speed is consistent, synchronous friction torque disappears, synchronous lock ring turns over an angle relative to clutch collar under the effect of ring moment, and clutch collar is crossed synchronous lock ring and engaged gear ring and completes synchronizing process under the effect of gear shifting force.

The utility model, compared with prior art, provide a kind of gearbox of tape synchronizer, can be applicable in engineering machinery, it has following advantage: advantage one, and the application of synchronizer on construction machinery gear box makes gearshift smoothly submissive; Common construction machinery gear box could be shifted gears without the clutch of synchronizer bipod, and noise is large, a car.Advantage two, before synchronization mechanism gearbox, I gear falls the conversion of I gear same straight line, simple operation and hommization, is applicable to the work characteristics that engineering machinery forward gear retreats gear frequent transitions; The conversion of common construction machinery gear box forward gear retrogressing gear need be walked " bow " type operation trace and increase workload and labor intensity.Advantage three, synchronization mechanism shifting fork shafts of gearbox cabinet front is given prominence to, and is connected on steering column operates with flexible axle, and liberation riding space, operates more humane; Common construction machinery gear box goes out pin by upper cover, and invariant operation takies riding space.Advantage four, front speed high speed reach 35 kilometers/time, front fall the low 3--6 kilometer/hour of speed, this gearbox Applicable scope is wider.

Synchronizer mainly comprises synchronous lock ring, clutch collar etc., relies on rubbing action to realize synchronous.The inner conical surface of synchronous lock ring contacts to produce with tooth male cone (strobilus masculinus) to be combined and rubs, both synchronous rotary gears are made to be zero with synchronous lock ring relative rotation speed, moment of inertia simultaneously disappearance combined cover is combined with synchrolock ring gear in the clear, and engages with the gear ring of gear to be engaged further thus realize smoothly shifting gears.Put into gear and pull declutch shift shaft to drive clutch collar slippage to realize by manual operation flexible axle.

The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (3)

1. a gearbox for tape synchronizer, is characterized in that, comprising: the first axle and the second axle, high low speed gear, low speed gear, high gear, synchronizer, intermediate gear, one grade of gear, first synchronizer, second synchronizer, reverse gear, described first axle has from left to right been fixedly connected sequentially low speed gear and high gear, and described second axle is from left to right connected with high low speed gear in turn, first synchronizer, intermediate gear, one grade of gear, second synchronizer, reverse gear, described high low speed gear and described second axle are slidably connected, described first synchronizer, second synchronizer is fixedly connected with described second axle, described intermediate gear, one grade of gear, reverse gear dallies with described second axle and is connected, when changing second gear, by described first synchronizer with described intermediate gear engagement, shift gears, when changing one grade, by described second synchronizer with described one grade of gears meshing, shift gears, when changing reverse gear, by described second synchronizer with described reverse gear engagement, shift gears.

2. the gearbox of tape synchronizer according to claim 1, it is characterized in that, described first synchronizer and the second synchronizer include synchronous lock ring and clutch collar, during gear shift, make clutch collar and one grade of gear or intermediate gear or reverse gear engagement by synchronous lock ring.

3. the gearbox of tape synchronizer according to claim 1 and 2, is characterized in that, described first synchronizer and the second synchronizer are lock ring type synchronizer.