CN103471846A - Transmission gear-shift test stand and automatic gear-shift device thereof - Google Patents
Transmission gear-shift test stand and automatic gear-shift device thereof Download PDFInfo
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- CN103471846A CN103471846A CN2013104435686A CN201310443568A CN103471846A CN 103471846 A CN103471846 A CN 103471846A CN 2013104435686 A CN2013104435686 A CN 2013104435686A CN 201310443568 A CN201310443568 A CN 201310443568A CN 103471846 A CN103471846 A CN 103471846A
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Abstract
The invention provides an automatic gear-shift device of a transmission gear-shift test stand. The automatic gear-shift device comprises a first cylinder, a second cylinder, a first limiting device, a second limiting device and an electromagnetic valve. The automatic gear-shift device controls the air inlet state of the first cylinder and the air inlet state of the second cylinder through the electromagnetic valve, the stroke of a first piston is limited through a first stopping portion and a second stopping portion, and the stroke of a first cylinder body is limited through a third stopping portion and a fourth stopping portion. Signal transmission is needless due to limiting of the stopping portions, control delay is not caused, and accordingly when the first piston pushes a gear-shift rocker to a position close to the limit and the first piston and the first cylinder body abut against the corresponding stopping portions respectively, the first piston and the first cylinder body immediately stop moving respectively, impact of the cylinder piston on the gear-shift rocker is reduced, damages to the gear-shift rocker are reduced, and service life of a transmission is prolonged. The invention further provides the transmission gear-shift test stand with the automatic gear-shift device.
Description
Technical field
The present invention relates to the 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 occupant's life security, so variator need to be on testing table before dispatching from the factory by test, be found that defect in its potential assembling manufacturing and design is and necessary and have great importance.
When variator is tested, often utilize the shift of transmission testing table to carry out simulated automotive manual transmission gear shift operation, with the test unit of checking manual gear of vehicle endurance quality.As shown in Figure 1, the structural representation that this figure is 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 forms by cylinder 05, displacement transducer 06 with for the solenoid valve (not shown) of control cylinder 05 work; Above-mentioned cylinder 05 is arranged on testing table base 03 by fixed support 07.During test, variator 04 is connected and passes to variator 04 with the power by drive motor 01 by coupling arrangement 02 with 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 according to the position of this gear-shifting rocker arm 041, utilize controller to control solenoid valve, and then the stroke of control cylinder piston 051, order about gear-shifting rocker arm 041 by cylinder piston 051 and seesaw, reach self-shifting purpose.
But, because above-mentioned automatic gear shift apparatus passes through the work of controller control cylinder, namely when ordering about gear-shifting rocker arm, cylinder piston moves to certain ad-hoc location (front gear, neutral gear or rear gear) time, need first by displacement transducer, to provide position signalling, and this position signalling is fed back to controller, controller transmits control signal to solenoid valve again, and then it is mobile that the solenoid control cylinder piston is stopped, 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 because being positioned at extreme position, gear-shifting rocker arm can not be moved again, can cause like this cylinder piston to produce larger impact to gear-shifting rocker arm, easily the gear-shifting rocker arm in test is caused to damage, affected 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 of controlling causes cylinder piston to produce and swing in centre position with gear-shifting rocker arm, 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, thereby reduce the damage that gear-shifting rocker arm is caused, extend the serviceable life of variator.
The present invention also provides 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:
A kind of automatic gear shift apparatus of shift of transmission testing table comprises:
The first cylinder with first piston and 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 that described the first cylinder body moves, described the second cylinder has the second piston and the second cylinder body, and one of them of described the second piston and described the second cylinder body is fixedly connected with described the first cylinder body, and another is fixed on the base of described shift of transmission testing table;
For limiting first stop means of stroke of described first piston, described the first stop means has the first stop part and second stop part that can stop respectively described first piston to move, the close described gear-shifting rocker arm of described the first stop part, and be provided with first location division that can offset with described the first stop part and described the second stop part on described first piston;
For limiting second stop means of stroke of described the first cylinder body, described the second stop means has the 3rd stop part and the 4th stop part that can stop respectively described the first cylinder body to move, the close described gear-shifting rocker arm of described the 3rd stop part, and be provided with second location division that can offset with described the 3rd stop part and described the 4th stop part on described the first cylinder body;
Solenoid valve for the air-suction state of controlling described the first cylinder and described the second cylinder with the position of limiting described first piston and described the first cylinder body; When described gear-shifting rocker arm is positioned at front gear, described solenoid valve is controlled described first piston simultaneously and the first stop part offsets and described the first cylinder body and described the 4th stop part offset; When described gear-shifting rocker arm is positioned at rear gear, described solenoid valve is controlled described the first location division simultaneously and described the second stop part offsets and described the second location division and described the 3rd stop part offset; When described gear-shifting rocker arm is positioned at neutral gear, described the first location division of described solenoid control and described the first stop part offset and described the second location division and described the 3rd stop part offset or control described the first location division and described the second stop part offsets and described the second location division and described the 4th stop part offset simultaneously, and described solenoid valve is connected with described the second cylinder with described the first cylinder respectively.
Preferably, in above-mentioned automatic gear shift apparatus, described the first stop means is arranged on described the first cylinder, and described the second stop means is arranged on described the second cylinder.
Preferably, in above-mentioned automatic gear shift apparatus, described the first cylinder and described the second cylinder are oppositely arranged, and described the second cylinder body and described the first cylinder body be the integral type structure, and described the second piston is fixed on the fixed support of described base.
Preferably, in above-mentioned automatic gear shift apparatus, described the first stop means comprises the first long locating part and the first short locating part all be arranged on the close front end face of described gear-shifting rocker arm of described the first cylinder body, the described first long locating part has described the first stop part, and the described first short locating part has described the second stop part.
Preferably, in above-mentioned automatic gear shift apparatus, described the first location division for be welded on described first piston and with synchronization-moving the first location-plate of described first piston, described the first location-plate is perpendicular to the axis of described first piston and between described the first stop part and the second stop part.
Preferably, second location-plate of the second location division described in above-mentioned automatic gear shift apparatus for being weldingly connected with the outer end of described the second piston, described the second location-plate is perpendicular to the axis of described the second piston and be fixed on described fixed support; And described the second stop means comprises and all is arranged on described the 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, the described second long locating part runs through movably described the second location-plate and has described the 4th stop part, the described second short locating part has described the 3rd stop part, and described the second location-plate is between described the 3rd stop part and described the 4th stop part.
Preferably, in above-mentioned automatic gear shift apparatus, offer the first threaded hole and the second threaded hole on described front end face, the described first long locating part is the first thru-bolt be arranged in described the first threaded hole, and the bolt head of described the first thru-bolt forms described the first stop part; The described first short locating part is the first lag bolt be arranged in described the second threaded hole, and the bolt head of described the first lag bolt forms described the second stop part; And offer the 3rd threaded hole and the 4th threaded hole on described rear end face, the described second long locating part is the second thru-bolt be arranged in described the 3rd threaded hole, and the bolt head of described the second thru-bolt forms described the 4th stop part; The described second short locating part is for being arranged on the second lag bolt in described the 4th threaded hole, and the bolt head of described the second lag bolt forms described the 3rd stop part.
Preferably, in above-mentioned automatic gear shift apparatus, described the first thru-bolt and described the first lag bolt are two, and two described the first thru-bolts are positioned at cornerwise two ends of described front end face, and two described the first lag bolts are positioned at another cornerwise two ends of described front end face; Described the second thru-bolt and described the second lag bolt are two, and two described the second thru-bolts are positioned at cornerwise two ends of described rear end face, and two described the second lag bolts are positioned at another cornerwise two ends of described rear end face.
Preferably, in above-mentioned automatic gear shift apparatus, described the second stop part is the end of described the first cylinder body away from described gear-shifting rocker arm, and described the 3rd stop part is the end of described the second cylinder body near described gear-shifting rocker arm; And described the first cylinder is identical with described the second cylinder specification, and coaxial the setting.
From above-mentioned technical scheme, can find out, 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; The second cylinder moves for ordering about the first cylinder body, and it has the second piston and the second cylinder body, and one of them of the second piston and the second cylinder body be fixedly connected with the first cylinder body, and another is fixed on the base of shift of transmission testing table; The first stop means is for limiting the stroke of first piston, it has the first stop part and second stop part that can stop respectively first piston to move, the close gear-shifting rocker arm of the first stop part, and be provided with first location division that can offset with the first stop part and the second stop part on first piston; The 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 respectively the first cylinder body to move, the close gear-shifting rocker arm of the 3rd stop part, and be provided with second location division that can offset with the 3rd stop part and the 4th stop part on the first cylinder body; Solenoid valve is used for controlling the position of the air-suction state of the first cylinder and the second cylinder with restriction first piston and the first cylinder body; When gear-shifting rocker arm is positioned at front gear, solenoid valve is controlled 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 is controlled 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 the 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 with the first cylinder respectively.
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 the 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 while 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 while entering the 4th chamber, the second cylinder is in contraction state.
When the present invention applies, solenoid valve can be controlled the air-suction state in the first chamber, the second chamber, the 3rd chamber and the 4th chamber, in solenoid control pressurized air enters the second chamber and the 3rd chamber, make the first cylinder be stretched to the first location division and the first stop part offsets, when simultaneously the second cylinder is stretched to the second location division and the 4th stop part and offsets, gear-shifting rocker arm is positioned at front gear; Control pressurized air when solenoid control and enter in the first chamber and the 4th chamber, make the first cylinder be contracted to the first location division and the second stop part and offset while the second cylinder when being contracted to the second location division and the 3rd stop part and offseting, gear-shifting rocker arm is positioned at rear gear; In solenoid control pressurized air enters the second chamber and the 4th chamber, make the first cylinder be stretched to the first location division and the first stop part and offset simultaneously the second cylinder when being contracted to the second location division and the 3rd stop part and offseting, perhaps, 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 and offset simultaneously the second cylinder when being stretched to the second location division and the 4th stop part and 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 is by the air-suction state of solenoid control the first cylinder and the second cylinder, then limit the stroke of first piston by the first stop part and the second stop part, limit 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 carrying out signal by stop part, can not cause the time delay of control, approach extreme position (front gear or after row when) so when first piston, gear-shifting rocker arm is pushed to, when first piston and the first cylinder body offset with corresponding stop part respectively, first piston and the first cylinder body can stop respectively mobile immediately, and then reduced the impact that cylinder piston causes gear-shifting rocker arm, thus reduced the damage that gear-shifting rocker arm is caused, extended the serviceable life of variator.
The present invention also provides 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 above-mentioned any automatic gear shift apparatus, because above-mentioned automatic gear shift apparatus has above-mentioned effect, shift of transmission testing table with above-mentioned automatic gear shift apparatus has same effect, therefore this paper repeats no more.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 provides of the embodiment of the present invention;
Fig. 3 is the structural representation of the shift of transmission testing table that provides of the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of automatic gear shift apparatus of shift of transmission testing table, realized when the gear-shifting rocker arm of variator moves to extreme position, reduce the impact that cylinder piston causes gear-shifting rocker arm, thereby reduced the damage that gear-shifting rocker arm is caused, extended the serviceable life of variator.
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, 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, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, 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, the second cylinder 32, the 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; The 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; The first stop means is for limiting the stroke of first piston 312, it has the first stop part and second stop part that can stop respectively first piston 312 to move, the close gear-shifting rocker arm 21 of the first stop part, and be provided with first location division that can offset with the first stop part and the second stop part on first piston 312; The 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 respectively the first cylinder body 311 to move, the close gear-shifting rocker arm 21 of the 3rd stop part, and be provided with second location division that can offset with the 3rd stop part and the 4th stop part on the first cylinder body 311; Solenoid valve is used for controlling the position of the air-suction state of the first cylinder 31 and the second cylinder 32 with restriction first piston 312 and the first cylinder body 311; When gear-shifting rocker arm 21 is positioned at front gear, solenoid valve is controlled 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 is controlled 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 the 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 is regarded the integral body of piston only and piston rod formation as piston, regards the integral body of cylinder body and piston formation 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, the first cylinder 31 is positioned at the left side of the second cylinder 32, and the first chamber A, the second chamber B, the 3rd chamber C and the 4th chamber D from left to right are arranged in order.Simultaneously, 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 while 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 while 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, utilize solenoid control pressurized air to enter in the second chamber B and the 3rd chamber C, make the first cylinder 31 and the second cylinder 32 all in elongation state, effect due to 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 when the first stop part offsets and the second location division and the 4th stop part offset, the second cylinder 32 promotes the first cylinder body 311 reaches (moving to left), and then make first piston 312 promote gear-shifting rocker arms 21 to be advanced to and to approach extreme position, complete variator 2 to be tested is hung to the operation into front gear;
Second step, utilize solenoid control pressurized air to enter in the first chamber A and the 3rd chamber C, and now the first cylinder 31, in compressive state, moves after first piston 312, and the second cylinder 32 is still in elongation state, the first cylinder body 311 invariant positions; 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 (moving to right) to neutral position after pulling gear-shifting rocker arm 21;
Replacedly, this step can also utilize solenoid control pressurized air to enter in the second chamber B and the 4th chamber D, make the first cylinder 31 still in elongation state, the second cylinder 32 is in contraction state, the second cylinder 32 moves after driving the first cylinder bodies 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, move after the first cylinder body 311 drives coupled first piston 312, and then move on to neutral position after pulling gear-shifting rocker arm 21;
The 3rd step, utilize solenoid control pressurized air 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, effect due to 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 when the second stop part offsets and the second location division and the 3rd stop part offset, the second cylinder 32 promotes to move after the first cylinder body 311, and then make first piston 312 pull after gear-shifting rocker arm 21 to move on to approach extreme position, complete variator 2 to be tested is hung to the operation into rear gear;
The 4th step, repeat above-mentioned second step, utilizes the air-suction state of solenoid control the first cylinder 31 and the second cylinder 32, make elongation of two cylinders, another contraction, and then make first piston 312 promotion gear-shifting rocker arms 21 be advanced to neutral gear position, complete 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 the first cylinder 31 and the second cylinder 32, then limit the stroke of first piston 312 by the first stop part and the second stop part, limit the stroke of the first cylinder body 311 by the 3rd stop part and the 4th stop part; Owing to realizing the spacing transmission without carrying out signal by stop part, can not cause the time delay of control, approach extreme position (front gear or after row when) so when first piston 312, gear-shifting rocker arm 21 is pushed to, first piston 312 and the first cylinder body 311 can offset with corresponding stop part respectively, first piston 312 and the first cylinder body 311 can stop respectively mobile immediately, reduced the impact that cylinder piston causes gear-shifting rocker arm 21, thereby reduced the damage that gear-shifting rocker arm 21 is caused, extended the serviceable life of variator.
In addition, in the process of above-mentioned automatic gear shift apparatus 3 work, when gear-shifting rocker arm 21 is positioned at centre position (neutral gear), the first stop means and the second stop means can limit immediately the position of first piston 312 and the first cylinder body 311 and avoid it to be moved, do not produce situation about swinging in centre position with gear-shifting rocker arm 21 so first piston 312 can not occur, improved positioning precision.The automatic gear shift apparatus 3 of the present embodiment adopts the mechanical means location, only needs to control the break-make of solenoid valve, without the signal of considering sensor, so control program is fairly simple; Simultaneously the present invention utilizes the first cylinder 31 and 32 two cylinders combinations of the second cylinder to realize 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 to say to there is the first stop means on the first cylinder 31, on the second cylinder 32, there is the second stop means, so, be conducive to install the first stop means and the second stop means, be convenient to find accurately the first stop part 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, reach the purpose of the stroke of same restriction the first cylinder body 311 and first piston 312 by the appropriate location that stop means is arranged on to base 1; In addition, the first stop means also can be arranged on the second cylinder 32 can with the synchronization-moving parts of the first cylinder body 311 on, at this, introduce no longer one by one.
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 be the 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, while in the second cylinder body 321, entering pressure gas, 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 can be by the first cylinder 31 and the second cylinder 32 along same direction setting, be that first piston 312 is positioned at the first cylinder 31 left sides, the second piston 322 also is positioned at the second cylinder 32 left sides, and the second piston 322 and the first cylinder body 311 are fixedly linked, the second cylinder body 321 is fixed on fixed support 11, now, the second cylinder body 321 maintains static, while in the second cylinder body 321, passing into pressure gas, the second piston 322 can be moved, and then reaches the effect that same driving the first cylinder body 311 moves, and at this, introduces no longer one by one.
In the present embodiment, the second cylinder body 321 and the first cylinder body 311 are set to integral type, have saved the operation that the first cylinder body 311 and the second cylinder body 321 are assembled together, thereby saved the installation time of automatic gear shift apparatus, improved efficiency of assembling.Above-mentioned two cylinder bodies can be also two structures of separating, 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, the first stop means comprises the first long locating part and the first short locating part all be arranged on the close front end face (being left side) of gear-shifting rocker arm 21 of the first cylinder body 311, the 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 are positioned at respectively on different structures, are convenient to adjust respectively the position of two stop parts; Above-mentioned two stop parts can also all be arranged on a locating part, and two projections that for example setting has spacing on a gag lever post are 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, the first location division for be welded on first piston 312 and with synchronization-moving the first location-plate 33, the first location-plates 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 be stopped the first location-plate 33, so the first location-plate 33 can only move between two stop parts, and then limited 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 the 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 the right side predeterminated position.Above-mentioned predeterminated position is first piston 312 residing exact position while promoting gear-shifting rocker arms 21 to different ad-hoc locations (front gear, rear row when or neutral gear).Simultaneously, first location-plate 33 of the present embodiment, perpendicular to the axis of first piston 312, can accurately be controlled the stroke of first piston 312.It will be appreciated by persons skilled in the art that and the first location-plate 33 can also be arranged on the first cylinder body 311, the first stop part and the second stop part all are arranged on first piston 312, to reach the effect of same restriction first piston 312 strokes.
In a kind of specific embodiment of the present invention, the second location division is preferably the second location-plate 36, the second location-plates 36 that the outer end with the second piston 322 is weldingly connected perpendicular to the axis of the second piston 322 and is fixed on fixed support 11; Now the second piston 322 is connected with fixed support 11 by the second location-plate 36; Simultaneously, the second stop means comprises and all is arranged on the second cylinder body 321 away from the second long locating part and the second short locating part on the rear end face (being right side) of gear-shifting rocker arm 21, the second long locating part runs through movably the second location-plate 36 and has the 4th stop part, the 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, enter pressurized air in the second cylinder body 321 cavitys and can order about the second cylinder body 321 and be moved, and then be inconjunction with the second long locating part and move together with the second short locating part; When the second cylinder 32 shrinks, the 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 elongation, the second cylinder body 321 can be moved to the left the 4th stop part and the second location-plate 36 offsets, and then realized the restriction to the second cylinder body 321 strokes.
The 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 the second stop means can also be a locating part, and the 3rd stop part and the 4th stop part all are 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 the positioning convex that make first piston 312 itself have the positioning function of realizing, to reach same and effects the first stop means engagement limits first piston 312 strokes; Make the first cylinder body 311, the second cylinder body 321 or the second piston 322 have can be as positioning convex or the locating slot of the second location division simultaneously, with the effect of the stroke that reaches same restriction the first cylinder body 311 that matches with the second stop means, the present embodiment does not specifically repeat this.
In order further to optimize technique scheme, offer the first threaded hole and the second threaded hole on the front end face of the first cylinder body 311, the first long locating part is that the bolt head that is arranged on the first thru-bolt 34, the first thru-bolts 34 in the first threaded hole forms the first stop part; The first short locating part is that the bolt head that is arranged on the first lag bolt 35, the first lag bolts 35 in the second threaded hole forms the second stop part; And offer the 3rd threaded hole and the 4th threaded hole on the rear end face of the second cylinder body 321, the second long locating part is that the bolt head that is arranged on the second thru-bolt 38, the second thru-bolts 38 in the 3rd threaded hole forms the 4th stop part; The second short locating part forms the 3rd stop part for the bolt head that is arranged on the second lag bolt 37, the second lag bolts 37 in the 4th threaded hole.
Now, all by threaded engagement, above-mentioned four locating parts are bolt between the first long locating part, the first short locating part and the first cylinder body 311 and between the second long locating part, the second short locating part and the second cylinder body 321; Adjustable because of the degree of depth that bolt screws in threaded hole, the length of bolt is adjustable, so the stop part position on above-mentioned four locating parts is all adjustable, is convenient to stop part is adjusted to position accurately; So, not only avoided because of the inaccurate situation that causes piston can not move to predeterminated position in stop part position; Can also realize by adjusting bolt length the different strokes of piston, 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 regulate the length of locating part.
Be understandable that, the first stop means (or second stop means) can also for double-screw bolt be arranged on this double-screw bolt on the coordinating of two nuts, 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), regulate the position of above-mentioned two stop parts by the position that screws up and down nut, and then reach same first piston 312(or the first cylinder body 311 of making) the adjustable effect of stroke.
Further, in 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; The 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 angles, the second thru-bolt 38 and the second lag bolt 37 lay respectively at the position at the second cylinder body 321 diagonal angles; When 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, guaranteed the steady movement of first piston 312 and the first cylinder body 311, avoid the location-plate run-off the straight, and then guaranteed the reliability of first piston 312 and the first cylinder body 311 positions.
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 the end of the second cylinder body 321 near gear-shifting rocker arm 21; Now, the second stop part is the first cylinder body 311 right-hand member ends, and the 3rd stop part is the second cylinder body 321 left end ends; 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; The 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.The present embodiment has reduced needs the stop part arranged in addition, makes to simplify the structure.
Simultaneously, in above-mentioned automatic gear shift apparatus 3, the first cylinder 31 is identical with the second cylinder 32 specifications, and coaxial the setting.Now, the first cylinder body 311 is identical respectively with shape and the size of the second cylinder body 321, and the shape of first piston 312 and the second piston 322 is identical respectively with size; The rate travel that can guarantee like this two cylinders is identical, guarantees the synchronism of operation, is convenient to control the duty of the first cylinder 31 and the second cylinder 32.
The embodiment of the present invention also provides a kind of shift of transmission testing table, and comprise base 1 and be arranged on the automatic gear shift apparatus 3 on base 1, as shown in Figure 3, 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, reduced the impact that cylinder piston causes gear-shifting rocker arm 21, thereby reduced the damage that gear-shifting rocker arm 21 is caused, extended the serviceable life of variator, its advantage is brought by automatic gear shift apparatus 3, concrete please refer to part relevant in above-described embodiment, at this, just repeats no more.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the automatic gear shift apparatus of a shift of transmission testing table, is characterized in that, comprising:
The first cylinder (31) with first piston (312) and 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 mobile the second cylinder (32) of described the first cylinder body (311), described the second cylinder (32) has the second piston (322) and the second cylinder body (321), and one of them of described the second piston (322) and described the second cylinder body (321) is fixedly connected with described the first cylinder body (311), another is fixed on the base (1) of described shift of transmission testing table;
For limiting first stop means of stroke of described first piston (312), described the first stop means has the first stop part and second stop part that can stop respectively described first piston (312) mobile, the close described gear-shifting rocker arm (21) of described the first stop part, and be provided with first location division that can offset with described the first stop part and described the second stop part on described first piston (312);
For limiting second stop means of stroke of described the first cylinder body (311), described the second stop means has the 3rd stop part and the 4th stop part that can stop respectively described the first cylinder body (311) mobile, the close described gear-shifting rocker arm (21) of described the 3rd stop part, and be provided with second location division that can offset with described the 3rd stop part and described the 4th stop part on described the first cylinder body (311);
Solenoid valve for the air-suction state of controlling described the first cylinder (31) and described the second cylinder (32) with the position of limiting described first piston (312) and described the first cylinder body (311); When described gear-shifting rocker arm (21), while being positioned at front gear, described first piston (312) controlled by described solenoid valve simultaneously and the first stop part offsets and described the first cylinder body (311) offsets with described the 4th stop part; When described gear-shifting rocker arm (21) while being positioned at rear gear, described solenoid valve is controlled described the first location division simultaneously and described the second stop part offsets and described the second location division and described the 3rd stop part offset; When described gear-shifting rocker arm (21) while being positioned at neutral gear, described the first location division of described solenoid control and described the first stop part offset and described the second location division and described the 3rd stop part offset or control described the first location division and described the second stop part offsets and described the second location division and described the 4th stop part offset simultaneously, and described solenoid valve is connected with described the second cylinder (32) with described the first cylinder (31) respectively.
2. automatic gear shift apparatus according to claim 1, is characterized in that, it is upper that described the first stop means is arranged on described the first cylinder (31), and described the second stop means is arranged on described the second cylinder (32).
3. automatic gear shift apparatus according to claim 2, it is characterized in that, described the first cylinder (31) and described the second cylinder (32) are oppositely arranged, and described the second cylinder body (321) is the integral type structure with described the first cylinder body (311), and described the 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 the first stop means comprises the first long locating part and the first short locating part all be arranged on the close front end face of described gear-shifting rocker arm (21) of described the first cylinder body (311), the described first long locating part has described the first stop part, and the described first short locating part has described the second stop part.
5. automatic gear shift apparatus according to claim 4, it is characterized in that, described the first location division for be welded on described first piston (312) upper and with synchronization-moving the first location-plate of described first piston (312) (33), described the first location-plate (33) is perpendicular to the axis of described first piston (312) and between described the first stop part and the second stop part.
6. automatic gear shift apparatus according to claim 4, it is characterized in that, second location-plate (36) of described the second location division for being weldingly connected with the outer end of described the second piston (322), described the second location-plate (36) is perpendicular to the axis of described the second piston (322) and be fixed on described fixed support (11); And described the second stop means comprises and all is arranged on described the 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, the described second long locating part runs through movably described the second location-plate (36) and has described the 4th stop part, the described second short locating part has described the 3rd stop part, and described the second location-plate (36) is between described the 3rd stop part and described the 4th stop part.
7. automatic gear shift apparatus according to claim 6, it is characterized in that, offer the first threaded hole and the second threaded hole on described front end face, the described first long locating part is the first thru-bolt (34) be arranged in described the first threaded hole, and the bolt head of described the first thru-bolt (34) forms described the first stop part; The described first short locating part is the first lag bolt (35) be arranged in described the second threaded hole, and the bolt head of described the first lag bolt (35) forms described the second stop part; And offer the 3rd threaded hole and the 4th threaded hole on described rear end face, the described second long locating part is the second thru-bolt (38) be arranged in described the 3rd threaded hole, and the bolt head of described the second thru-bolt (38) forms described the 4th stop part; The described second short locating part is for being arranged on the second lag bolt (37) in described the 4th threaded hole, and the bolt head of described the second lag bolt (37) forms described the 3rd stop part.
8. automatic gear shift apparatus according to claim 7, it is characterized in that, described the first thru-bolt (34) and described the first lag bolt (35) are two, and two described the first thru-bolts (34) are positioned at cornerwise two ends of described front end face, two described the first lag bolts (35) are positioned at another cornerwise two ends of described front end face; Described the second thru-bolt (38) and described the second lag bolt (37) are two, and two described the second thru-bolts (38) are positioned at cornerwise two ends of described rear end face, two described the 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 the second stop part is the end of described the first cylinder body (311) away from described gear-shifting rocker arm (21), and described the 3rd stop part is the end of described the second cylinder body (321) near described gear-shifting rocker arm (21); And described the first cylinder (31) is identical with described the second cylinder (32) specification, and coaxial the setting.
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 as the described automatic gear shift apparatus of claim 1-9 any one.
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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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| 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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| CN108444690A (en) * | 2018-05-25 | 2018-08-24 | 陕西法士特齿轮有限责任公司 | A kind of endurance test rack for AMT shifting operating mechanisms |
| CN110095278A (en) * | 2018-01-29 | 2019-08-06 | 宝山钢铁股份有限公司 | Bogie shift mechanism of automatic gearbox dynamic analog diagnostic device |
| CN110108479A (en) * | 2018-01-31 | 2019-08-09 | 宝山钢铁股份有限公司 | Bogie automatic gear-box thresholding cylinder and half grade of cylinder synchronous dynamic simulator |
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| CN104847888A (en) * | 2015-03-12 | 2015-08-19 | 上海葆专自动化科技有限公司 | Automatic gear shifting and choosing device of manual transmission and gear shifting and choosing method thereof |
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| 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 |
| CN110095278A (en) * | 2018-01-29 | 2019-08-06 | 宝山钢铁股份有限公司 | Bogie shift mechanism of automatic gearbox dynamic analog diagnostic device |
| 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 |
| CN110108479A (en) * | 2018-01-31 | 2019-08-09 | 宝山钢铁股份有限公司 | Bogie automatic gear-box thresholding cylinder and half grade of cylinder synchronous dynamic simulator |
| 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 |
| CN108444690A (en) * | 2018-05-25 | 2018-08-24 | 陕西法士特齿轮有限责任公司 | A kind of endurance test rack for AMT shifting operating mechanisms |
| 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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