CN103471846B - A kind of shift of transmission testing table and automatic gear shift apparatus thereof - Google Patents
A kind of shift of transmission testing table and automatic gear shift apparatus thereof Download PDFInfo
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- CN103471846B CN103471846B CN201310443568.6A CN201310443568A CN103471846B CN 103471846 B CN103471846 B CN 103471846B CN 201310443568 A CN201310443568 A CN 201310443568A CN 103471846 B CN103471846 B CN 103471846B
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Abstract
The invention provides a kind of automatic gear shift apparatus of shift of transmission testing table, comprise the first cylinder, the second cylinder, the first stop means, the second stop means and solenoid valve.This automatic gear shift apparatus passes through the air-suction state of solenoid control first cylinder and the second cylinder, and then limited the stroke of first piston by the first stop part and the second stop part, the 3rd stop part and the 4th stop part limit the stroke of the first cylinder body; Cause is by the spacing transmission without the need to carrying out signal of stop part, the time delay of control can not be caused, so when gear-shifting rocker arm is pushed to close to extreme position by first piston, when first piston and the first cylinder body offset with corresponding stop part respectively, first piston and the first cylinder body can stop mobile respectively immediately, and then reduce the impact that cylinder piston causes gear-shifting rocker arm, thus decrease the damage that gear-shifting rocker arm is caused, extend the serviceable life of variator.Present invention also offers a kind of shift of transmission testing table with above-mentioned automatic gear shift apparatus.
Description
Technical field
The present invention relates to transmission performance technical field of measurement and test, more particularly, relate to a kind of shift of transmission testing table and automatic gear shift apparatus thereof.
Background technology
Variator is the core component in automotive transmission, its safe reliability is directly connected to the life security of occupant, so variator needs the defect found in its potential assembling manufacturing and design by test on testing table to be and necessary and have great importance before dispatching from the factory.
When testing variator, shift of transmission testing table is often utilized to carry out simulated automotive manual transmission gear shift operation, to verify the test unit of manual gear of vehicle endurance quality.As shown in Figure 1, this figure is the structural representation of a kind of shift of transmission testing table of the prior art; This shift of transmission testing table comprises drive motor 01, coupling arrangement 02, testing table base 03 and automatic gear shift apparatus, and automatic gear shift apparatus of the prior art is by cylinder 05, displacement transducer 06 and form for the solenoid valve (not shown) that control cylinder 05 works; Above-mentioned cylinder 05 is arranged on testing table base 03 by fixed support 07.During test, with coupling arrangement 02, variator 04 is connected that the power of drive motor 01 is passed to variator 04 by coupling arrangement 02; And cylinder piston 051 is connected by rotatable bulb with the gear-shifting rocker arm 041 of variator 04.
Above-mentioned automatic gear shift apparatus detects the position of gear-shifting rocker arm 041 by displacement transducer 06, then controller Controlling solenoid valve is utilized according to the position of this gear-shifting rocker arm 041, and then the stroke of control cylinder piston 051, order about gear-shifting rocker arm 041 by cylinder piston 051 to seesaw, reach self-shifting object.
But, because above-mentioned automatic gear shift apparatus is by the work of controller control cylinder, namely move to certain ad-hoc location (front gear when cylinder piston orders about gear-shifting rocker arm, neutral gear or rear gear) time, need first to provide position signalling by displacement transducer, and this position signalling is fed back to controller, controller transmits control signal to solenoid valve again, and then it is mobile to make solenoid control cylinder piston stop, whole process time delay is longer, so, when each gear-shifting rocker arm moves to extreme position (front gear or rear gear), cylinder piston just can stop after a time, now can not be moved again because gear-shifting rocker arm is positioned at extreme position, cylinder piston can be caused like this to produce larger impact to gear-shifting rocker arm, easier to test in gear-shifting rocker arm cause damage, have impact on the serviceable life of variator.
In addition, in the process of above-mentioned automatic gear shift apparatus work, when gear-shifting rocker arm is positioned at centre position (neutral gear), because the time delay controlled, cause cylinder piston to produce swing with gear-shifting rocker arm in centre position, positioning precision is poor.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of automatic gear shift apparatus of shift of transmission testing table, to realize when the gear-shifting rocker arm of variator moves to extreme position, reduce the impact that cylinder piston causes gear-shifting rocker arm, thus reduce the damage that gear-shifting rocker arm is caused, extend the serviceable life of variator.
Present invention also offers a kind of shift of transmission testing table with above-mentioned automatic gear shift apparatus.
In order to achieve the above object, the invention provides following technical scheme:
An automatic gear shift apparatus for shift of transmission testing table, comprising:
Have the first cylinder of first piston and the first cylinder body, described first piston adopts ball pivot to be connected with the gear-shifting rocker arm of variator to be tested;
For ordering about the second cylinder of described first cylinder body movement, described second cylinder has the second piston and the second cylinder body, and one of them of described second piston and described second cylinder body is fixedly connected with described first cylinder body, another is fixed on the base of described shift of transmission testing table;
For limiting the first stop means of the stroke of described first piston, described first stop means has first stop part and the second stop part that can stop described first piston movement respectively, described first stop part near described gear-shifting rocker arm, and described first piston is provided with first location division that can offset with described first stop part and described second stop part;
For limiting the second stop means of the stroke of described first cylinder body, described second stop means has the 3rd stop part and the 4th stop part that can stop described first cylinder body movement respectively, described 3rd stop part near described gear-shifting rocker arm, and described first cylinder body is provided with second location division that can offset with described 3rd stop part and described 4th stop part;
For controlling the air-suction state of described first cylinder and described second cylinder to limit the solenoid valve of the position of described first piston and described first cylinder body; When described gear-shifting rocker arm is positioned at front gear, described solenoid valve controls described first piston simultaneously and the first stop part offsets and described first cylinder body and described 4th stop part offset; When described gear-shifting rocker arm is positioned at rear gear, described solenoid valve controls described first location division simultaneously and described second stop part offsets and described second location division and described 3rd stop part offset; When described gear-shifting rocker arm is positioned at neutral gear, first location division described in described solenoid control and described first stop part offset and described second location division and described 3rd stop part offset or control described first location division and described second stop part offsets and described second location division and described 4th stop part offset simultaneously, described solenoid valve respectively with described first cylinder and described second cylinders.
Preferably, in above-mentioned automatic gear shift apparatus, described first stop means is arranged on described first cylinder, and described second stop means is arranged on described second cylinder.
Preferably, in above-mentioned automatic gear shift apparatus, described first cylinder and described second cylinder are oppositely arranged, and described second cylinder body and described first cylinder body are integral type structure, and described second piston is fixed on the fixed support of described base.
Preferably, in above-mentioned automatic gear shift apparatus, described first stop means comprises and is all arranged on the first long locating part of described first cylinder body on the front end face of described gear-shifting rocker arm and the first short locating part, described first long locating part has described first stop part, and described first short locating part has described second stop part.
Preferably, in above-mentioned automatic gear shift apparatus, described first location division for being welded on described first piston and first location-plate synchronization-moving with described first piston, described first location-plate perpendicular to described first piston axis and between described first stop part and the second stop part.
Preferably, the second location division described in above-mentioned automatic gear shift apparatus is the second location-plate be weldingly connected with the outer end of described second piston, described second location-plate perpendicular to described second piston axis and be fixed on described fixed support; And described second stop means comprises and is all arranged on described second cylinder body away from the second long locating part on the rear end face of described gear-shifting rocker arm and the second short locating part, described second long locating part runs through described second location-plate movably and has described 4th stop part, described second short locating part has described 3rd stop part, and described second location-plate is between described 3rd stop part and described 4th stop part.
Preferably, in above-mentioned automatic gear shift apparatus, described front end face offers the first threaded hole and the second threaded hole, described first long locating part is be arranged on the first thru-bolt in described first threaded hole, and the bolt head of described first thru-bolt forms described first stop part; Described first short locating part is be arranged on the first lag bolt in described second threaded hole, and the bolt head of described first lag bolt forms described second stop part; And described rear end face offering the 3rd threaded hole and the 4th threaded hole, described second long locating part is be arranged on the second thru-bolt in described 3rd threaded hole, and the bolt head of described second thru-bolt forms described 4th stop part; Described second short locating part is for being arranged on the second lag bolt in described 4th threaded hole, and the bolt head of described second lag bolt forms described 3rd stop part.
Preferably, in above-mentioned automatic gear shift apparatus, described first thru-bolt and described first lag bolt are two, and two described first thru-bolts are positioned at cornerwise two ends of described front end face, and two described first lag bolts are positioned at another cornerwise two ends of described front end face; Described second thru-bolt and described second lag bolt are two, and two described second thru-bolts are positioned at cornerwise two ends of described rear end face, and two described second lag bolts are positioned at another cornerwise two ends of described rear end face.
Preferably, in above-mentioned automatic gear shift apparatus, described second stop part is the end of described first cylinder body away from described gear-shifting rocker arm, and described 3rd stop part is that described second cylinder body is near the end of described gear-shifting rocker arm; And described first cylinder is identical with described second cylinder specification, and coaxially arrange.
As can be seen from above-mentioned technical scheme, the automatic gear shift apparatus of shift of transmission testing table provided by the invention comprises the first cylinder, the second cylinder, the first stop means, the second stop means and solenoid valve; Wherein, the first cylinder has first piston and the first cylinder body, and first piston adopts ball pivot to be connected with the gear-shifting rocker arm of variator to be tested; Second cylinder is used for ordering about the first cylinder body and moves, and it has the second piston and the second cylinder body, and one of them of the second piston and the second cylinder body is fixedly connected with the first cylinder body, and another is fixed on the base of shift of transmission testing table; First stop means is for limiting the stroke of first piston, it has first stop part and the second stop part that can stop first piston movement respectively, first stop part near gear-shifting rocker arm, and first piston is provided with first location division that can offset with the first stop part and the second stop part; Second stop means is for limiting the stroke of the first cylinder body, it has the 3rd stop part and the 4th stop part that can stop the first cylinder body movement respectively, 3rd stop part near gear-shifting rocker arm, and the first cylinder body is provided with second location division that can offset with the 3rd stop part and the 4th stop part; Solenoid valve is for controlling the air-suction state of the first cylinder and the second cylinder to limit the position of first piston and the first cylinder body; When gear-shifting rocker arm is positioned at front gear, solenoid valve controls first piston simultaneously and the first stop part offsets and the first cylinder body and the 4th stop part offset; When gear-shifting rocker arm is positioned at rear gear, solenoid valve controls the first location division simultaneously and the second stop part offsets and the second location division and the 3rd stop part offset; When gear-shifting rocker arm is positioned at neutral gear, solenoid control first location division and the first stop part offset and the second location division and the 3rd stop part offset or control the first location division and the second stop part offsets and the second location division and the 4th stop part offset simultaneously, solenoid valve respectively with the first cylinder and the second cylinders.
It should be noted that, the cavity of the first cylinder is divided into the first chamber and the second chamber by first piston, the cavity of the second cylinder is divided into the 3rd chamber and the 4th chamber by the second piston, solenoid valve is for controlling the air-suction state in above-mentioned first chamber, the second chamber, the 3rd chamber and the 4th chamber, when solenoid control pressurized air enters the first chamber, the first cylinder is in contraction state, and when entering the second chamber, the first cylinder is in elongation state; When solenoid control pressurized air enters the 3rd chamber, the second cylinder is in elongation state, and when entering the 4th chamber, the second cylinder is in contraction state.
When the present invention applies, solenoid valve can control the air-suction state in the first chamber, the second chamber, the 3rd chamber and the 4th chamber, when solenoid control pressurized air enters in the second chamber and the 3rd chamber, the first cylinder is made to be stretched to the first location division and the first stop part offsets, simultaneously the second cylinder is stretched to the second location division and the 4th stop part when offseting, and gear-shifting rocker arm is positioned at front gear; Enter in the first chamber and the 4th chamber when solenoid control controls pressurized air, make the first cylinder be contracted to the second cylinder while that the first location division and the second stop part offseting and be contracted to the second location division and the 3rd stop part when offseting, gear-shifting rocker arm is positioned at rear gear; When solenoid control pressurized air enters in the second chamber and the 4th chamber, make the first cylinder be stretched to the first location division and the first stop part the second cylinder simultaneously that offsets and be contracted to the second location division and the 3rd stop part when offseting, or, controlling pressurized air enters in the first chamber and the 3rd chamber, make the first cylinder be contracted to the first location division and the second stop part the second cylinder simultaneously that offsets and be stretched to the second location division and the 4th stop part when offseting, gear-shifting rocker arm is positioned at front gear.
In summary, the automatic gear shift apparatus of shift of transmission testing table provided by the invention passes through the air-suction state of solenoid control first cylinder and the second cylinder, then limited the stroke of first piston by the first stop part and the second stop part, limited the stroke of the first cylinder body by the 3rd stop part and the 4th stop part; Owing to carrying out the spacing transmission without the need to carrying out signal by stop part, the time delay of control can not be caused, so when gear-shifting rocker arm to be pushed to close to extreme position (front gear or after row when) by first piston, when first piston and the first cylinder body offset with corresponding stop part respectively, first piston and the first cylinder body can stop mobile respectively immediately, and then reduce the impact that cylinder piston causes gear-shifting rocker arm, thus decrease the damage that gear-shifting rocker arm is caused, extend the serviceable life of variator.
Present invention also offers a kind of shift of transmission testing table, comprise base and be arranged on the automatic gear shift apparatus on described base, described automatic gear shift apparatus is any one automatic gear shift apparatus above-mentioned, because above-mentioned automatic gear shift apparatus has above-mentioned effect, the shift of transmission testing table with above-mentioned automatic gear shift apparatus has same effect, therefore repeats no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of shift of transmission testing table of the prior art;
Fig. 2 is the structural representation of the automatic gear shift apparatus of the shift of transmission testing table that the embodiment of the present invention provides;
Fig. 3 is the structural representation of the shift of transmission testing table that the embodiment of the present invention provides.
Embodiment
Embodiments provide a kind of automatic gear shift apparatus of shift of transmission testing table, achieve when the gear-shifting rocker arm of variator moves to extreme position, reduce the impact that cylinder piston causes gear-shifting rocker arm, thus decrease the damage that gear-shifting rocker arm is caused, extend the serviceable life of variator.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 2, the automatic gear shift apparatus 3 of the shift of transmission testing table that the embodiment of the present invention provides comprises the first cylinder 31, second cylinder 32, first stop means, the second stop means and solenoid valve; Wherein, the first cylinder 31 has first piston 312 and the first cylinder body 311, and first piston 312 adopts ball pivot to be connected with the gear-shifting rocker arm 21 of variator 2 to be tested; Second cylinder 32 moves for ordering about the first cylinder body 311, it has the second piston 322 and the second cylinder body 321, and one of them of the second piston 322 and the second cylinder body 321 is fixedly connected with the first cylinder body 311, another is fixed on the base 1 of shift of transmission testing table; First stop means is for limiting the stroke of first piston 312, it has first stop part and the second stop part that can stop first piston 312 movement respectively, first stop part near gear-shifting rocker arm 21, and first piston 312 is provided with first location division that can offset with the first stop part and the second stop part; Second stop means is for limiting the stroke of the first cylinder body 311, it has the 3rd stop part and the 4th stop part that can stop the first cylinder body 311 movement respectively, 3rd stop part near gear-shifting rocker arm 21, and the first cylinder body 311 is provided with second location division that can offset with the 3rd stop part and the 4th stop part; Solenoid valve is for controlling the air-suction state of the first cylinder 31 and the second cylinder 32 to limit the position of first piston 312 and the first cylinder body 311; When gear-shifting rocker arm 21 is positioned at front gear, solenoid valve controls first piston 312 simultaneously and the first stop part offsets and the first cylinder body 311 and the 4th stop part offset; When gear-shifting rocker arm 21 is positioned at rear gear, solenoid valve controls the first location division simultaneously and the second stop part offsets and the second location division and the 3rd stop part offset; When gear-shifting rocker arm 21 is positioned at neutral gear, solenoid control first location division and the first stop part offset and the second location division and the 3rd stop part offset or control the first location division and the second stop part offsets and the second location division and the 4th stop part offset simultaneously, and solenoid valve is connected with the second cylinder 32 with the first cylinder 31 respectively.
It should be noted that, for convenience of description, the present embodiment regards the entirety that piston only and piston rod are formed as piston, regards the entirety that cylinder body and piston are formed as cylinder.The cavity of the first cylinder 31 is divided into the first chamber A and the second chamber B by first piston 312, the cavity of the second cylinder 32 is divided into the 3rd chamber C and the 4th chamber D by the second piston 322, as shown in Figure 2, first cylinder 31 is positioned at the left side of the second cylinder 32, then the first chamber A, the second chamber B, the 3rd chamber C and the 4th chamber D are from left to right arranged in order.Meanwhile, the first stop part is positioned at the left side of the second stop part, and the 3rd stop part is positioned at the left side of the 4th stop part.
Above-mentioned solenoid valve is for controlling the air-suction state of the first chamber A, the second chamber B, the 3rd chamber C and the 4th chamber D, and when solenoid control pressurized air enters the first chamber A, the first cylinder 31 is in contraction state, and when entering the second chamber B, the first cylinder 31 is in elongation state; When solenoid control pressurized air enters the 3rd chamber C, the second cylinder 32 is in elongation state, and when entering the 4th chamber D, the second cylinder 32 is in contraction state.
The course of work of the automatic gear shift apparatus 3 of the embodiment of the present invention is as follows:
The first step, solenoid control pressurized air is utilized to enter in the second chamber B and the 3rd chamber C, the first cylinder 31 and the second cylinder 32 is made all to be in elongation state, due to the effect of the first location division and the first stop part and the second location division and the 4th stop part, when the first location division and the first stop part offset and the second location division and the 4th stop part offset, second cylinder 32 promotes the first cylinder body 311 and moves forward (namely moving to left), and then make first piston 312 promote gear-shifting rocker arm 21 to be advanced to close to extreme position, to complete operation variator 2 to be tested being linked into front gear;
Second step, utilize solenoid control pressurized air to enter in the first chamber A and the 3rd chamber C, now the first cylinder 31 is in compressive state, moves after first piston 312, and the second cylinder 32 is still in elongation state, the first cylinder body 311 invariant position; Due to the effect of the first location division and the second stop part, when the first location division and the second stop part offset, first piston 312 moves after pulling gear-shifting rocker arm 21 (namely moving to right) to neutral position;
Alternatively, this step can also utilize solenoid control pressurized air to enter in the second chamber B and the 4th chamber D, the first cylinder 31 is made still to be in elongation state, second cylinder 32 is in contraction state, second cylinder 32 moves after driving the first cylinder body 311, due to the effect of the second location division and the 3rd stop part, when the second location division and the 3rd stop part offset, first cylinder body 311 moves after driving coupled first piston 312, and then moves on to neutral position after pulling gear-shifting rocker arm 21;
3rd step, solenoid control pressurized air is utilized to enter in the first chamber A and the 4th chamber D, now the first cylinder 31 and the second cylinder 32 are all in contraction state, due to the effect of the first location division and the second stop part and the second location division and the 3rd stop part, when the first location division and the second stop part offset and the second location division and the 3rd stop part offset, second cylinder 32 moves after promoting the first cylinder body 311, and then move on to close to extreme position after making first piston 312 pull gear-shifting rocker arm 21, complete operation variator 2 to be tested being linked into rear gear;
4th step, repeats above-mentioned second step, utilizes the air-suction state of solenoid control first cylinder 31 and the second cylinder 32, make the elongation of one, two cylinders, another shrinks, and then makes first piston 312 promote gear-shifting rocker arm 21 to be advanced to neutral gear position, completes a gearshift circulation.
In summary, the automatic gear shift apparatus 3 of the shift of transmission testing table that the embodiment of the present invention provides is by the air-suction state of solenoid control first cylinder 31 and the second cylinder 32, then limited the stroke of first piston 312 by the first stop part and the second stop part, limited the stroke of the first cylinder body 311 by the 3rd stop part and the 4th stop part; Owing to being realized the spacing transmission without the need to carrying out signal by stop part, the time delay of control can not be caused, so when gear-shifting rocker arm 21 to be pushed to close to extreme position (front gear or after row when) by first piston 312, first piston 312 and the first cylinder body 311 can offset with corresponding stop part respectively, then first piston 312 and the first cylinder body 311 can stop mobile respectively immediately, reduce the impact that cylinder piston causes gear-shifting rocker arm 21, thus decrease the damage that gear-shifting rocker arm 21 is caused, extend the serviceable life of variator.
In addition, in the process that above-mentioned automatic gear shift apparatus 3 works, when gear-shifting rocker arm 21 is positioned at centre position (neutral gear), the position that first stop means and the second stop means can limit first piston 312 and the first cylinder body 311 immediately avoids it to be moved, so first piston 312 can not be there is produce situation about swinging in centre position with gear-shifting rocker arm 21, improve positioning precision.The automatic gear shift apparatus 3 of the present embodiment adopts mechanical means to locate, and only needs the break-make of Controlling solenoid valve, without the need to considering the signal of sensor, so control program is fairly simple; Simultaneously the present invention utilizes the first cylinder 31 and 32 two the cylinders combinations of the second cylinder to achieve the accurate location of three positions before, during and after shift of transmission rocking arm 21, and reliability is high.
In a kind of specific embodiment of the present invention, the first stop means is arranged on the first cylinder 31, and the second stop means is arranged on the second cylinder 32.That is, the first cylinder 31 has the first stop means, the second cylinder 32 has the second stop means, so, be conducive to installation first stop means and the second stop means, be convenient to find the first stop part accurately simultaneously, the position of the second stop part, the 3rd stop part and the 4th stop part.Certainly, above-mentioned two stop means can also all be arranged on base 1, are reached the object of the stroke of same restriction first cylinder body 311 and first piston 312 by appropriate location stop means being arranged on base 1; In addition, the first stop means also can be arranged on the second cylinder 32 and with on the synchronization-moving parts of the first cylinder body 311, can introduce no longer one by one at this.
Preferably, in the automatic gear shift apparatus 3 that above-described embodiment provides, the first cylinder 31 and the second cylinder 32 are oppositely arranged, and the second cylinder body 321 and the first cylinder body 311 are integral type structure, and the second piston 322 is fixed on the fixed support 11 of base 1.As shown in Figure 2, first piston 312 is positioned at the left side of the first cylinder 31, and the second piston 322 is positioned at the right side of the second cylinder 32, and the first cylinder body 311 is connected with the second cylinder body 321 docking; Because the second piston 322 maintains static, then when entering pressure gas in the second cylinder body 321, the second cylinder body 321 can be moved, and then realizes driving the first coupled cylinder body 311 to move.It will be understood by those skilled in the art that, also the first cylinder 31 and the second cylinder 32 can be arranged along same direction, namely first piston 312 is positioned on the left of the first cylinder 31, second piston 322 is also positioned on the left of the second cylinder 32, and the second piston 322 and the first cylinder body 311 are fixedly linked, second cylinder body 321 is fixed on fixed support 11, now, second cylinder body 321 maintains static, when passing into pressure gas in the second cylinder body 321, second piston 322 can be moved, and then reaches the effect of same driving first cylinder body 311 movement, introduces no longer one by one at this.
In the present embodiment, the second cylinder body 321 and the first cylinder body 311 are set to integral type, eliminate the operation the first cylinder body 311 and the second cylinder body 321 are assembled together, thus eliminate the installation time of automatic gear shift apparatus, improve efficiency of assembling.Above-mentioned two cylinder bodies also can for two structures separately, and then the mode such as with bolts or clamping plate realizes being fixedly linked, and the present invention does not do concrete restriction to this.
In a kind of specific embodiment of the present invention, first stop means comprises and is all arranged on the first long locating part of the first cylinder body 311 on the front end face (i.e. left side) of gear-shifting rocker arm 21 and the first short locating part, first long locating part has the first stop part, and the first short locating part has the second stop part.Now, the first stop part and the second stop part lay respectively in different structures, are convenient to the position adjusting two stop parts respectively; Above-mentioned two stop parts can also all be arranged on a locating part, and such as on a gag lever post, setting has two projections of spacing as above-mentioned two stop parts, and above-mentioned spacing is the stroke of first piston 312.
Further, in the automatic gear shift apparatus 3 that above-described embodiment provides, first location division is for be welded on first piston 312 and with synchronization-moving first location-plate 33, first location-plate 33 of first piston 312 perpendicular to the axis of first piston 312 and between the first stop part and the second stop part.During work, first piston 312 is inconjunction with the first location-plate 33 and moves together, because the first stop part and the second stop part can stop the first location-plate 33, so the first location-plate 33 can only move between two stop parts, and then limit the stroke of first piston 312; When the first location-plate 33 and the first stop part offset, first piston 312 moves to left and is elongated to left side predeterminated position, and when the first location-plate 33 and the first stop part offset, first piston 312 moves to right and is retracted to right side predeterminated position.Above-mentioned predeterminated position be first piston 312 promote gear-shifting rocker arm 21 to different ad-hoc location (front gear, rear row when or neutral gear) time residing exact position.Meanwhile, first location-plate 33 of the present embodiment, perpendicular to the axis of first piston 312, accurately can control the stroke of first piston 312.It will be appreciated by persons skilled in the art that and can also the first location-plate 33 is arranged on the first cylinder body 311, the first stop part and the second stop part are all arranged on first piston 312, to reach the effect of same restriction first piston 312 stroke.
In a kind of specific embodiment of the present invention, the second location division is preferably the second location-plate 36, second location-plate 36 of being weldingly connected with the outer end of the second piston 322 and is fixed on fixed support 11 perpendicular to the axis of the second piston 322; Now the second piston 322 is connected with fixed support 11 by the second location-plate 36; Simultaneously, second stop means comprises and is all arranged on the second cylinder body 321 away from the second long locating part on the rear end face (i.e. right side) of gear-shifting rocker arm 21 and the second short locating part, second long locating part runs through the second location-plate 36 movably and has the 4th stop part, second short locating part has the 3rd stop part, and the second location-plate 36 is between the 3rd stop part and the 4th stop part.
During work, because the second piston 322 maintains static, the pressurized air entered in the second cylinder body 321 cavity can order about the second cylinder body 321 and be moved, and then is inconjunction with the second long locating part and moves together with the second short locating part; When the second cylinder 32 shrinks, second cylinder body 321 can move right to the 3rd stop part and the second location-plate 36 and offset, when the second cylinder 32 extends, second cylinder body 321 can be moved to the left the 4th stop part and the second location-plate 36 offsets, and then achieve the restriction to the second cylinder body 321 stroke.
Above-mentioned second long locating part and the second short locating part can also all be fixed on fixed support 11 or other position of base 1.In addition, above-mentioned second stop means can also be a locating part, and the 3rd stop part and the 4th stop part are all arranged on this locating part.
Certainly, the embodiment of the present invention also can not arrange the first location-plate 33 and the second location-plate 36, the locating slot or positioning convex that first piston 312 are had itself realize positioning function, coordinate with the first stop means the effect limiting first piston 312 stroke to reach same; Make the first cylinder body 311, second cylinder body 321 or the second piston 322 have can as the positioning convex of the second location division or locating slot simultaneously, to reach the effect of the stroke of same restriction first cylinder body 311 that matches with the second stop means, the present embodiment does not specifically repeat this.
In order to optimize technique scheme further, the front end face of the first cylinder body 311 offers the first threaded hole and the second threaded hole, first long locating part is that the bolt head of the first thru-bolt 34, first thru-bolt 34 be arranged in the first threaded hole forms the first stop part; First short locating part is that the bolt head of the first lag bolt 35, first lag bolt 35 be arranged in the second threaded hole forms the second stop part; And the rear end face of the second cylinder body 321 offering the 3rd threaded hole and the 4th threaded hole, the second long locating part is that the bolt head of the second thru-bolt 38, second thru-bolt 38 be arranged in the 3rd threaded hole forms the 4th stop part; Second short locating part is for being arranged on bolt head formation the 3rd stop part of the second lag bolt 37, second lag bolt 37 in the 4th threaded hole.
Now, the first long locating part, between the first short locating part and the first cylinder body 311 and the second long locating part, between the second short locating part and the second cylinder body 321 all by threaded engagement, above-mentioned four locating parts are bolt; Because bolt screws in the depth adjustable in threaded hole, then the adjustable length of bolt, so the stop part position on above-mentioned four locating parts is all adjustable, is convenient to stop part to be adjusted to position accurately; So, not only avoid the situation causing piston can not move to predeterminated position because stop part position is inaccurate; The different strokes of piston can also be realized by adjusting bolt length, and then make this automatic gear shift apparatus 3 be applicable to the test of different size variator, improve versatility.And above-mentioned threaded engagement is convenient to the length regulating locating part.
Be understandable that, first stop means (or second stop means) can also coordinating for stud and two nuts be arranged on this stud, these two nuts are respectively as the first stop part and the second stop part (or the 3rd stop part and the 4th stop part), regulated the position of above-mentioned two stop parts by the position of upper and lower screw on nut, and then reach same and make first piston 312(or the first cylinder body 311) the adjustable effect of stroke.
In further technical scheme, the first thru-bolt 34 and the first lag bolt 35 are two, and two the first thru-bolts 34 are positioned at cornerwise two ends of front end face, and two the first lag bolts 35 are positioned at another cornerwise two ends of front end face; Second thru-bolt 38 and the second lag bolt 37 are two, and two the second thru-bolts 38 are positioned at cornerwise two ends of rear end face, and two the second lag bolts 37 are positioned at another cornerwise two ends of rear end face.Because the first thru-bolt 34 and the first lag bolt 35 lay respectively at the position at the first cylinder body 311 diagonal angle, the second thru-bolt 38 and the second lag bolt 37 lay respectively at the position at the second cylinder body 321 diagonal angle; When then first piston 312 or the first cylinder body 311 move, the position at diagonal angle can be subject to the restriction of stop part simultaneously, ensure that the steady movement of first piston 312 and the first cylinder body 311, avoid location-plate run-off the straight, and then ensure that the reliability of first piston 312 and the first cylinder body 311 position.
In a kind of preferred embodiment of the present invention, the second stop part is the end of the first cylinder body 311 away from gear-shifting rocker arm 21, and the 3rd stop part is that the second cylinder body 321 is near the end of gear-shifting rocker arm 21; Now, the second stop part is the first cylinder body 311 right-hand member end, and the 3rd stop part is the second cylinder body 321 left end end; When needs gear-shifting rocker arm 21 is positioned at rear gear, solenoid control pressurized air enters in the first chamber A and the 4th chamber D, and first piston 312 shrinks and moves to right, until be resisted against the right-hand member of the first cylinder body 311; Second cylinder body 321 shrinks and moves to right, until the second piston 322 is resisted against the left end of the second cylinder body 321, and then makes first piston 312 pull gear-shifting rocker arm 21 to be shifted to the right to rear gear.This embodiment reduces the stop part needing to arrange in addition, make to simplify the structure.
Meanwhile, in above-mentioned automatic gear shift apparatus 3, the first cylinder 31 is identical with the second cylinder 32 specification, and coaxially arranges.Now, the first cylinder body 311 is identical respectively with size with the shape of the second cylinder body 321, and first piston 312 is identical respectively with size with the shape of the second piston 322; Can ensure that the rate travel of two cylinders is identical like this, ensure the synchronism run, be convenient to the duty of control first cylinder 31 and the second cylinder 32.
The embodiment of the present invention additionally provides a kind of shift of transmission testing table, the automatic gear shift apparatus 3 comprising base 1 and be arranged on base 1, as shown in Figure 3, and the automatic gear shift apparatus that this automatic gear shift apparatus 3 provides for any one embodiment of the present invention.
The automatic gear shift apparatus 3 that above-mentioned shift of transmission testing table adopts the present embodiment to provide, when the gear-shifting rocker arm 21 of variator moves to extreme position, reduce the impact that cylinder piston causes gear-shifting rocker arm 21, thus decrease the damage that gear-shifting rocker arm 21 is caused, extend the serviceable life of variator, its advantage is brought by automatic gear shift apparatus 3, and concrete please refer to part relevant in above-described embodiment, just repeats no more at this.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an automatic gear shift apparatus for shift of transmission testing table, is characterized in that, comprising:
Have first cylinder (31) of first piston (312) and the first cylinder body (311), described first piston (312) adopts ball pivot to be connected with the gear-shifting rocker arm (21) of variator to be tested (2);
For ordering about second cylinder (32) of described first cylinder body (311) movement, described second cylinder (32) has the second piston (322) and the second cylinder body (321), and one of them of described second piston (322) and described second cylinder body (321) is fixedly connected with described first cylinder body (311), another is fixed on the base (1) of described shift of transmission testing table;
For limiting the first stop means of the stroke of described first piston (312), described first stop means has first stop part and the second stop part that can stop described first piston (312) movement respectively, described first stop part near described gear-shifting rocker arm (21), and described first piston (312) is provided with first location division that can offset with described first stop part and described second stop part;
For limiting the second stop means of the stroke of described first cylinder body (311), described second stop means has the 3rd stop part and the 4th stop part that can stop the movement of described first cylinder body (311) respectively, described 3rd stop part near described gear-shifting rocker arm (21), and described first cylinder body (311) is provided with second location division that can offset with described 3rd stop part and described 4th stop part;
For controlling the air-suction state of described first cylinder (31) and described second cylinder (32) to limit the solenoid valve of the position of described first piston (312) and described first cylinder body (311); When described gear-shifting rocker arm (21) is positioned at front gear, described solenoid valve controls described first piston (312) simultaneously and the first stop part offsets and described first cylinder body (311) offsets with described 4th stop part; When described gear-shifting rocker arm (21) is positioned at rear gear, described solenoid valve controls described first location division simultaneously and described second stop part offsets and described second location division and described 3rd stop part offset; When described gear-shifting rocker arm (21) is positioned at neutral gear, first location division described in described solenoid control and described first stop part offset and described second location division and described 3rd stop part offset or control described first location division and described second stop part offsets and described second location division and described 4th stop part offset simultaneously, and described solenoid valve is connected with described second cylinder (32) with described first cylinder (31) respectively.
2. automatic gear shift apparatus according to claim 1, is characterized in that, described first stop means is arranged on described first cylinder (31), and described second stop means is arranged on described second cylinder (32).
3. automatic gear shift apparatus according to claim 2, it is characterized in that, described first cylinder (31) and described second cylinder (32) are oppositely arranged, and described second cylinder body (321) and described first cylinder body (311) are integral type structure, described second piston (322) is fixed on the fixed support (11) of described base (1).
4. automatic gear shift apparatus according to claim 3, it is characterized in that, described first stop means comprise all be arranged on described first cylinder body (311) near described gear-shifting rocker arm (21) front end face on the first long locating part and the first short locating part, described first long locating part has described first stop part, and described first short locating part has described second stop part.
5. automatic gear shift apparatus according to claim 4, it is characterized in that, described first location division for being welded on upper and first location-plate (33) synchronization-moving with described first piston (312) of described first piston (312), described first location-plate (33) perpendicular to described first piston (312) axis and between described first stop part and the second stop part.
6. automatic gear shift apparatus according to claim 4, it is characterized in that, described second location division is the second location-plate (36) be weldingly connected with the outer end of described second piston (322), described second location-plate (36) perpendicular to described second piston (322) axis and be fixed on described fixed support (11); And described second stop means comprises and is all arranged on described second cylinder body (321) away from the second long locating part on the rear end face of described gear-shifting rocker arm (21) and the second short locating part, described second long locating part runs through described second location-plate (36) movably and has described 4th stop part, described second short locating part has described 3rd stop part, and described second location-plate (36) is between described 3rd stop part and described 4th stop part.
7. automatic gear shift apparatus according to claim 6, it is characterized in that, described front end face offers the first threaded hole and the second threaded hole, described first long locating part is the first thru-bolt (34) be arranged in described first threaded hole, and the bolt head of described first thru-bolt (34) forms described first stop part; Described first short locating part is the first lag bolt (35) be arranged in described second threaded hole, and the bolt head of described first lag bolt (35) forms described second stop part; And described rear end face offering the 3rd threaded hole and the 4th threaded hole, described second long locating part is be arranged on the second thru-bolt (38) in described 3rd threaded hole, and the bolt head of described second thru-bolt (38) forms described 4th stop part; Described second short locating part is for being arranged on the second lag bolt (37) in described 4th threaded hole, and the bolt head of described second lag bolt (37) forms described 3rd stop part.
8. automatic gear shift apparatus according to claim 7, it is characterized in that, described first thru-bolt (34) and described first lag bolt (35) are two, and two described first thru-bolts (34) are positioned at cornerwise two ends of described front end face, two described first lag bolts (35) are positioned at another cornerwise two ends of described front end face; Described second thru-bolt (38) and described second lag bolt (37) are two, and two described second thru-bolts (38) are positioned at cornerwise two ends of described rear end face, two described second lag bolts (37) are positioned at another cornerwise two ends of described rear end face.
9. automatic gear shift apparatus according to claim 1, it is characterized in that, described second stop part is the end of described first cylinder body (311) away from described gear-shifting rocker arm (21), and described 3rd stop part is the end of described second cylinder body (321) near described gear-shifting rocker arm (21); And described first cylinder (31) is identical with described second cylinder (32) specification, and coaxially arrange.
10. a shift of transmission testing table, comprise base (1) and be arranged on the automatic gear shift apparatus (3) on described base (1), it is characterized in that, described automatic gear shift apparatus (3) is the automatic gear shift apparatus as described in any one of claim 1-9.
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| CN201310443568.6A CN103471846B (en) | 2013-09-25 | 2013-09-25 | A kind of shift of transmission testing table and automatic gear shift apparatus thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847888B (en) * | 2015-03-12 | 2018-05-22 | 上海葆专自动化科技有限公司 | The automatic gear shift device of manual transmission and its gear shift method |
| CN106289967A (en) * | 2015-06-10 | 2017-01-04 | 北京市电加工研究所 | A kind of in-place detection system measuring parts amount of deflection |
| CN106500990A (en) * | 2016-12-27 | 2017-03-15 | 盛瑞传动股份有限公司 | A kind of gearshift durable test stand |
| CN110095278B (en) * | 2018-01-29 | 2022-06-28 | 宝山钢铁股份有限公司 | Dynamic simulation diagnosis device for gear shifting mechanism of automatic gearbox of truck |
| CN110108479B (en) * | 2018-01-31 | 2022-06-28 | 宝山钢铁股份有限公司 | Threshold cylinder and half-gear cylinder synchronous dynamic simulation device of automatic gearbox of truck |
| CN108444690B (en) * | 2018-05-25 | 2024-05-14 | 陕西法士特齿轮有限责任公司 | A endurance test rack for AMT selects operating device that shifts |
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| JP4372388B2 (en) * | 2002-02-20 | 2009-11-25 | 富士重工業株式会社 | Shift control device for continuously variable transmission |
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