CN213871283U - Take self-checking AMT separation and reunion electromechanical device - Google Patents

Abstract

The utility model provides a take self-checking AMT separation and reunion electromechanical device, include: one end of the drainage channel is connected with the atmosphere, and the other end of the drainage channel is connected with a pipeline between a valve port of a control valve body of the clutch electromechanical device and the pressure building cavity; still include exhaust self-checking device, form exhaust passage in the exhaust self-checking device, exhaust self-checking device includes: the fixing piece is fixedly connected with a channel opening of the drainage channel; the movable piece extends in the inner cavity of the fixed piece and can move along the extending direction of the inner cavity of the fixed piece, wherein in a normal state, the movable piece keeps the trend of moving towards the direction of the fixed piece and is limited by the fixed piece, and then the exhaust channel is closed; in a use state, the sealing between the movable part and the fixed part is removed, the exhaust channel is opened, and the technical problems of high product checking difficulty, low efficiency and incomplete internal pressure release of an electromechanical actuating device of the mechanical automatic transmission in the prior art can be solved by configuring an exhaust self-checking device.

Description

Take self-checking AMT separation and reunion electromechanical device

Technical Field

The utility model belongs to the technical field of mechanical type automatic gearbox, specifically speaking relates to a take self-checking AMT separation and reunion electromechanical device.

Background

In the prior art, besides the technical problem that the air compressor and the control pipeline generate local pressure failure points due to the multistage distribution of air pressure, the air inlet pressure of the transmission is overlarge, corresponding technical problems also exist in the self assembly process of the transmission. For the mechanical automatic transmission, during the assembly process, the swing rod of the clutch needs to overcome the elastic force of the corresponding elastic return device and is adjusted to a preset angle position, so that the parts of the clutch electromechanical device can be accurately aligned. Generally speaking, the calibration of the clutch electromechanical device components requires the use of special tools to assist, which are complex and inconvenient to use.

On the other hand, the mechanical installation structure of the clutch electromechanical device needs to be checked for quality before use, an air source and a pressure gauge meeting certain conditions need to be connected externally when the checking process is completed, or testing software, an air pressure sensor, a pipeline rack and the like need to be used, and after the user end completes checking and evaluation on the use reliability of the transmission mechanical device during loading, the installation process is further completed. It can therefore be seen that, in addition to the high requirements in terms of assembly accuracy, the automatic mechanical transmission is also complicated to assemble and to test.

One current approach is to attempt to simplify the assembly and maintenance process of the transmission by improving the electro-mechanical actuator structure of the transmission and to eliminate the potential safety hazard during the assembly process. The technical problem of this idea is that the automatic mechanical transmission implements the clutch disengagement and engagement process, which is essentially the inflation and deflation process of its internal cylinders, while the internal structure of the automatic mechanical transmission includes electromechanical actuators, i.e. devices that control the amount of electricity and the amount of time during the inflation and deflation process during the coupling process of the transmission. It can be seen that if the exhaust process is not completely performed and the power is suddenly cut off, high-pressure energy is left in the pressure building cavity of the device. In combination with the suddenly increased air pressure in the process of multi-stage pressure distribution, or because the exhaust process is not completely executed and the power is suddenly cut off, the exhaust process is not completely executed, and high-pressure energy is left and stored in the pressure building cylinder of the transmission. The stored high-pressure energy can cause the cylinder body to explode suddenly in the assembling, overhauling and replacing processes of the transmission, the cylinder explosion can directly cause the fastening piece loosened due to long-term use in the cylinder body to be disassembled suddenly, and the shock wave formed along with the cylinder explosion can also cause damage to operators. Considering again that frequent power on and off of the equipment is usually performed during maintenance, the above safety hazards are further amplified.

Therefore, in the loading and maintenance process of the electromechanical actuating device in the mechanical automatic transmission in the prior art, the technical problems of low product checking efficiency, high installation difficulty in the loading process and potential safety hazards caused by internal pressure release exist. In view of the above, the prior art should be improved to overcome the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide one kind through configuration exhaust self-checking device, can solve under the prior art product check-up degree of difficulty that mechanical automatic gearbox's electromechanical executive device exists big, inefficiency promptly, and the area self-checking AMT separation and reunion electromechanical device of inside pressure release incomplete technical problem.

For solving above technical problem, the utility model discloses a take self-checking AMT separation and reunion electromechanical device, take self-checking AMT separation and reunion electromechanical device includes: one end of the drainage channel is connected with the atmosphere, and the other end of the drainage channel is connected with a pipeline between a valve port of a control valve body of the clutch electromechanical device and the pressure building cavity; the device still includes exhaust self-checking device, form exhaust passage in the exhaust self-checking device, exhaust self-checking device includes: the fixing piece is fixedly connected with a channel opening of the drainage channel; the movable piece extends in the inner cavity of the fixed piece and can move along the extending direction of the inner cavity of the fixed piece, wherein in a normal state, the movable piece keeps the trend of moving towards the direction of the fixed piece and is limited by the fixed piece, and then the exhaust channel is closed; in the use state, the sealing between the movable piece and the fixed piece is released, and then the exhaust channel is opened.

Preferably, the exhaust gas self-inspection device includes: the fixing piece is an outer valve body which is fixedly connected with a channel port of the drainage channel, and the exhaust channel is formed in an inner cavity of the outer valve body; the retainer is arranged in the inner cavity of the outer valve body and is fixedly connected with the wall surface of the exhaust channel; the movable piece is a door control device, the door control device extends into the retainer, an elastic component is arranged between the door control device and the retainer, a sealing seat is arranged on the door control device, the elastic component has a preset deformation amount, the door control device is in a trend that the door control device is displaced towards the elastic component and the sealing seat is limited by the inner wall of the retainer under a normal state by the traction force generated by the deformation amount, and at the moment, the exhaust channel is separated from the drainage channel; in a use state, the door control device overcomes the traction force of the elastic component and moves away from the elastic component, the limit between the sealing seat and the inner wall of the retainer is released, and at the moment, the exhaust channel is communicated with the drainage channel.

Further preferably, a first convergent annular inclined surface is formed on the inner side wall surface of the outer valve body, and a sealing sleeve is arranged between the inner side wall surface of the outer valve body at the first annular inclined surface and the outer side wall surface of the retainer, so that sealing is formed between the outer valve body and the retainer; and a second convergent annular inclined plane is formed on the inner side wall surface of the retainer, and the sealing seat and the second annular inclined plane are extruded and limited to form sealing in a normal state.

Still further preferably, the door control device is a long straight member with an i-shaped cross section, and two flanges are formed at two ends of the long straight member, respectively, and are respectively defined as a first flange fixedly connected to the elastic member and a second flange fixedly connected to the sealing seat.

Still further preferably, the door control device further comprises a third flange, and the door control device is a long straight member with a cross section shaped like a Chinese character 'wang', the third flange is located between the first flange and the second flange in the extending direction of the door control device, and the sealing seat is located between the third flange and the second flange.

Due to the adoption of the technical scheme, the utility model discloses compare in prior art and have following beneficial technological effect:

1. compared with the detection mode which needs to be assisted by a coincidence air source, a pressure gauge or auxiliary equipment such as an air pressure sensor, test software and the like under the prior art, the utility model provides a self-checking device for exhaust which is configured on an electromechanical actuating device, and the detection of the electromechanical actuating device of the automatic transmission can be completed without the assistance of the auxiliary equipment; meanwhile, a channel switch between a pressure building cavity of the electromechanical execution structure and the outside atmosphere is constructed by utilizing the exhaust self-checking device, and a channel between the pressure building cavity and the outside atmosphere is in a closed state under a normal state;

2. the utility model discloses in exhaust self-checking device, constructed from the chamber of building pressure to the atmospheric normally closed passageway in the external world through mounting and moving part, this passageway of definition is exhaust passage, promptly, this exhaust passage is in the closed condition under non-user state (or non-detection state), when needs use, make the moving part motion and remove its and the mounting sealing contact, so that exhaust passage in the exhaust apparatus opens, thereby build the chamber and constitute the route with the external world, residual gas in it passes through exhaust passage and discharges.

3. The characteristic of the exhaust self-checking device is applied to the exhaust self-checking process of the electromechanical execution structure, namely, the exhaust self-checking device is pressed continuously or non-continuously to exhaust the gas in the pressure building cavity, so that the potential safety hazard of the electromechanical execution structure in the processes of installation inspection, replacement and maintenance and the like is reduced;

4. further, when the characteristics of the exhaust self-checking device are applied to the air tightness detection process of the electromechanical execution structure, firstly, the exhaust self-checking device is operated to open the exhaust channel, then the bearing guide rod of the electromechanical device is approximately vertically abutted against the rigid support, the volume of the pressure building cavity is enabled to be the minimum value by overcoming the return spring in the pressure building cavity, the gas in the pressure building cavity is exhausted from the exhaust channel, then, the exhaust self-checking device is operated to close the exhaust channel, at the moment, the gas negative pressure borne by the piston piece in the pressure building cavity, the elastic force of the return spring of the pressure building cavity to the piston piece and the thrust of the bearing guide rod to the piston piece are in a balanced state within a preset time, and at the moment, if the sealing performance of each sealing piece in the pressure building cavity is good, the bearing guide rod should be kept in a stable state within the preset time without returning; on the contrary, if the exhaust self-checking device is operated to enable the bearing guide rod to return after the exhaust channel is closed, the problem of air tightness of the sealing element in the pressure building cavity is indicated;

5. the moving part in the exhaust self-checking device is a door control device which is connected with the retainer through an elastic part, a third flange can be additionally arranged between the first flange and the second flange of the door control device, and the third flange plays a role of lead in the moving process of the door control device; the step of operating the exhaust self-checking device is that the first flange of the door control device is continuously or discontinuously pressed against the traction force of the elastic component, and the movement track of the door control device is always perpendicular to the direction of the elastic force of the elastic component through the third flange which plays a role of lead because the force application direction of an operator cannot always keep perpendicular to the direction of the elastic deformation of the elastic component, so that the working condition of the exhaust self-checking device is ensured to be realized, and the service life of the exhaust self-checking device is prolonged;

6. in the process, the annular inclined plane reserves a space for deformation of the rubber sealing sleeve, so that the air tightness between the outer valve body and the retainer cannot lose due to repeated extrusion caused by movement of a moving part, and the air tightness between the outer valve body and the retainer cannot be lost; correspondingly, the inner wall of the retainer also forms a convergent annular inclined plane, thereby playing a role in ensuring the sealing effect of the device;

7. in order to prevent external dust and silt from entering the pressure building cavity through the exhaust self-checking device, a dustproof cover for covering the door control device and the outer valve body is arranged at the top of the door control device, and a gap is reserved between the dustproof cover and the fixing piece (the outer valve body), so that when pollutants are prevented from entering the cavity, when high-pressure gas in the pressure building cavity is exhausted, the exhaust pressure can be obviously reduced.

Drawings

FIG. 1 is a cross-sectional view showing the cross-sectional structure of the electromechanical device with self-checking AMT clutch in a preferred embodiment of the present invention;

FIG. 2 is a state diagram illustrating the assembly of the electromechanical device with self-checking AMT clutch and a rocker lever as shown in FIG. 1;

fig. 3 is a partially enlarged sectional view showing a partially enlarged sectional structure of a portion a of fig. 2;

FIG. 4 is a cross-sectional view showing a cross-sectional configuration of the door control device and cage assembly shown in FIG. 3;

fig. 5 is a state diagram showing a state where an exhaust passage in the exhaust gas self-checking apparatus shown in fig. 3 is opened;

fig. 6 is a sectional view showing a sectional structure of an exhaust gas self-inspection device having a gate control device shaped like a king in another preferred embodiment of the present invention;

fig. 7 is a state diagram showing a state where the exhaust passage in the exhaust gas self-checking device shown in fig. 6 is opened;

fig. 8 is a state diagram showing a state in which the electromechanical device with the self-checking AMT clutch shown in fig. 1 checks airtightness.

Detailed Description

An embodiment of the present invention with self-checking AMT clutch electromechanical device will be described with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.

It should be noted that, in the embodiments of the present invention, the expressions "first" and "second" are used for distinguishing two entities with the same name but different names or different parameters, and it can be seen that "first" and "second" are only used for convenience of description and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe this any more.

Referring first to fig. 1 and 2, fig. 1 is a sectional view showing a sectional structure of an electromechanical device with self-checking AMT clutch according to a preferred embodiment of the present invention; fig. 2 is a state diagram showing a state in which the electromechanical device with the self-checking AMT clutch shown in fig. 1 is assembled with a swing lever. As shown in fig. 1, the clutch electromechanical device 100 includes a pressure building chamber 101 in the cylinder, a piston member 103 driven by a force bearing guide rod 102 is arranged in the pressure building chamber 101, and a return spring 104 abutting against the piston member 103, and referring to fig. 2 again, in an assembled state, the force bearing guide rod 102 of the clutch electromechanical device 100 is coupled with a swing rod ball socket on a swing rod 105 to realize continuous contact linkage butt joint. The oscillating bar 105 is acted by a preset return force, so that one end of the oscillating bar 105 connected with the force bearing guide rod 102 always keeps the trend of moving towards one side of the clutch electromechanical device 100, and pushes the force bearing guide rod 102 to drive the piston piece 103 to compress the return spring 104 to move until the elastic force generated by the deformation of the return spring 104 is balanced with the thrust of the oscillating bar 105 to the force bearing guide rod 102 and then stands. Referring back to fig. 1, the clutch electromechanical device further includes two electromagnetic devices 106, wherein a valve port of the electromagnetic device 106 corresponding to the air inlet end is communicated with the pressure buildup chamber 101 through a pipeline. The utility model discloses a preferred embodiment is to set up such a passageway on clutch electromechanical device's cylinder body, the one end and the external atmosphere intercommunication of passageway, the pipeline intercommunication of its other end and electromagnetic means 106's valve port and build pressure chamber 101 intercommunication the utility model discloses in, this passageway of definition is drainage channel 107. As shown in fig. 1, when the electromagnetic device 106 is turned off, the gas in the pressure buildup chamber 101 can be discharged through the drainage channel 107. The self-test exhaust device 200 is interfaced with the flow channel 107. Continuing to refer to fig. 1, exhaust self-checking device 200 and the cylinder body rigid coupling of drainage channel 107 entrance, the utility model discloses an idea is through this exhaust self-checking device 200 as the switch of drainage channel 107, control drainage channel 107 and the atmospheric intercommunication in the external world and cut off.

Next, the exhaust self-inspection apparatus 200 is described in detail. The exhaust self-checking device according to the embodiment of the present invention is substantially provided with a fixing member and a moving member, wherein the fixing member is used for fixedly connecting with the cylinder body of the passage opening of the drainage channel 107, and the moving member is disposed in the fixing member, and is in a normal state, i.e., in a non-open state, in contact with the fixing member in an extrusion manner to form a seal, and at this time, the drainage channel 107 is isolated from the outside. In the open state, by releasing the pressing contact between the movable member and the fixed member, the seal between the movable member and the fixed member is lost, and the drainage passage 107 is communicated with the outside.

Fig. 3 is a partially enlarged sectional view showing a partially enlarged sectional structure of a portion a in fig. 2. As shown in fig. 3, the self-checking device for exhaust gas according to a preferred embodiment of the present invention includes an outer valve body 201, a holder 202 disposed in the outer valve body 201 and having a vulcanizing valve, and a door control device 203 disposed in the holder 202 and movable in the holder 202. The outer valve body 201 is fixedly connected with the cylinder body at the channel port of the drainage channel 107 through threads, the outer valve body 201 is a hollow piece, a cavity formed by the hollow part in the outer valve body is defined as an exhaust channel 204, and as shown in fig. 3, after the exhaust self-checking device 200 is fixedly connected, the exhaust channel 204 is in butt joint with the drainage channel 107. The inner side wall surface of the outer valve body 201 is provided with a thread part 205, and the outside of the retainer 202 is provided with a thread (not shown) corresponding to the thread part 205 of the outer valve body 201, so that the retainer can extend into the opening part of the outer valve body 201 and feed to the limit along the thread part, and the fixation with the outer valve body 201 is completed. It is easy to see that, in the preferred embodiment, the whole body formed by the outer valve body 201 and the retainer 202 is regarded as a fixing member, and the split design of the fixing member is more beneficial to prolonging the service life of the whole body, however, such a design inevitably requires consideration of the sealing effect between the two components, and with continued reference to fig. 3, in order to solve the sealing problem between the two components, the inner side wall surface of the outer valve body 201 forms an annular inclined surface converging toward the passage opening of the diversion passage 107, which is defined as a first annular inclined surface 206, after the outer valve body 201 is fixedly connected with the retainer 202, a gap is formed between the inner side surface of the outer valve body 201 and the outer profile surface of the retainer 202, in the preferred embodiment, the gap is filled and sealed by a gland 207 of vulcanized hard rubber material on the holder 202, therefore, the sealing between the outer valve body 201 and the retainer 202 is realized, and meanwhile, the influence on the sealing effect between the outer valve body 201 and the retainer 202 caused by the movement process of the control gate device 203 is avoided. In addition, it is worth mentioning that another conceivable way to solve the above-mentioned sealing problem between the two is to integrally form the outer valve body 201 and the retainer 202 into a fixed part, however, although the sealing problem between the two can be ignored, it is not favorable to prolong the service life of the whole structure, and the difficulty of structure modeling and assembling is increased.

And the gating device 203. Fig. 4 is a cross-sectional view showing a cross-sectional structure of the assembly of the door control device and the holder shown in fig. 3. In the preferred embodiment, the door control 203 is connected to the holder 202 as a movable member. Specifically, with continued reference to fig. 3 and with reference to fig. 4, the door control device 203 is shown in cross-section as an "i" shaped elongated member, including two flanges at each end thereof, respectively defined as a first flange 2031 distal from the drainage channel 107 and a second flange 2032 proximal to the drainage channel 107. An elastic component 208 is fixedly connected between the first flange 2031 and the retainer 202, a sealing seat 209 is fixedly connected on the second flange 2032, an annular inclined surface which is consistent with the outer wall surface of the retainer 202 and is converged towards the direction of the channel opening of the drainage channel 107 is also formed on the inner wall surface of the retainer 202, the annular inclined surface is defined as a second annular inclined surface 210, and the inner tangent surface of the second annular inclined surface 210 is contacted with the sealing seat 209 on the second flange 2032 to form sealing. As mentioned above, the present general inventive concept requires that the movable member normally press against the fixed member to form a seal, and in the preferred embodiment, the door control device 203 normally tends to move toward the first flange 2031 and is limited by the second annular inclined surface 210 of the retainer 202. To achieve the technical effect, in the preferred embodiment of the present invention, one end of the elastic component 208 is fixedly connected to the bottom surface of the first flange 2031, and the other end of the elastic component 208 is fixedly connected to the top surface of the retainer 202, on this basis, a predetermined amount of compression deformation is given to the elastic component 208, and the retainer 202 and the outer valve body 201 are screwed into a position-limiting manner, so that the elastic component 208 overcomes the elastic force generated by the compression elastic deformation and performs a return movement toward the first flange 2031, and therefore, the door control device 203 always keeps a movement trend toward the first flange 2031 in a normal state, and is limited due to the contact and extrusion of the sealing seat 209 and the second annular inclined surface 210 of the inner wall of the retainer 202, and a seal is formed. In this way, the exhaust passage 204 in the self-inspection device 200 is closed in a normal state, that is, the drainage passage 107 is isolated from the outside in a normal state.

Referring back to fig. 3, it should be understood that the state shown in fig. 3, that is, the exhaust self-testing device 200 is in a normally closed state. Referring to the usage state of the exhaust self-checking device 200, that is, the internal exhaust channel 204 is open, so that the drainage channel 107 is in communication with the outside. Fig. 5 is a state diagram showing a state in which the exhaust passage in the exhaust self-checking apparatus shown in fig. 3 is opened. Referring to fig. 5, in the usage state, a force is applied to the first flange 2031 in a direction toward the second flange 2032, so as to further compress the elastic component 208, and the deformation generated thereby is larger than the preset compression deformation amount, and then the door control device 203 moves in the direction toward the second flange 2032, so that the normal movement tendency of the door control device 203 is overcome, that is, the pressing contact state and the sealing state of the sealing seat 209 thereon and the second annular inclined surface 210 are released, so that the exhaust passage 204 in the exhaust self-testing device 200 is opened, and the exhaust passage 204 serves as an intermediate passage to communicate the drainage passage 107 with the external atmosphere. In this state, referring to fig. 1 and 5, it can be seen that the pressure building chamber 101 is communicated with the outside atmosphere, and if there is gas in the pressure building chamber 101, the gas is exhausted through the flow guide channel 107 and the exhaust channel 204.

In the actual operation process, since the direction of the force applied to the door control device 203 by the operator is difficult to keep coincident with the axial direction of the door control device 203, the movement direction of the door control device 203 may be deviated after the force is applied, which may not only cause the release of the sealing state but also affect the service life of the door control device 203. In view of this, in another preferred embodiment of the present invention, there is provided a structure of a door control device with a lead, and fig. 6 is a sectional view showing a sectional structure of an exhaust self-checking device having a door control device shaped like a "king" in another preferred embodiment of the present invention; fig. 7 is a state diagram showing a state in which the exhaust passage in the exhaust self-checking apparatus shown in fig. 6 is opened. Referring initially to fig. 6, in the preferred embodiment, door control device 203 is a long straight member with a "king" cross-section when viewed in cross-section, and a third flange 2033 is added between first flange 2031 and second flange 2032, such that third flange 2033 is vertically between first flange 2031 and second flange 2032, and in the preferred embodiment, seal housing 209 is located between third flange 2033 and second flange 2032 and is affixed to second flange 2032. Referring again to fig. 6, during the movement of the door control device 203 in this embodiment, the third flange 2033 can lead the vertical movement of the door control device 203 in the holding frame 202, making it difficult to deviate from the predetermined movement track. Thereby ensuring the effect of relieving the sealing state and also ensuring the service life of the door control device 203.

In addition, in order to prevent external dust and silt from entering the pressure building cavity 101 through the exhaust self-checking device 200, the dust cover 211 covering the door control device 203 and the outer valve body 201 is arranged at the top of the door control device 203, and a gap is reserved between the dust cover 211 and the fixing piece (the outer valve body), so that when pollutants are prevented from entering the cavity, and high-pressure gas in the pressure building cavity is exhausted, the exhaust pressure can be obviously reduced. Furthermore, in other embodiments of the present invention, the inner side surface of the dust cover 211 may be fixedly connected to the first flange 2031 of the door control device 203, so that the operation of the first flange 2031 of the door control device 203 may be converted into the operation of the dust cover 211.

Finish exhausting self-checking device 200's structure and working process, it is corresponding, the utility model discloses a preferred embodiment still provides an AMT clutch electromechanical exhaust self-checking method and airtight self-checking method based on aforementioned exhaust self-checking device.

Firstly, a drainage channel is configured on a clutch electromechanical device in the prior art, one end of the drainage channel is communicated with the atmosphere, and the other end of the drainage channel is communicated with a pipeline between a valve port of a control valve body (an electromagnetic device) of the clutch electromechanical device and a pressure building cavity. Next, the exhaust self-inspection device described above is disposed at the opening position of the flow guide passage. An exhaust channel in the exhaust self-checking device is in butt joint with the drainage channel. And when the exhaust channel is closed in a normal state, the drainage channel is isolated from the external atmosphere. When the exhaust gas needs to be checked, the first flange or the dust cover of the door control device is continuously or non-continuously pressed, so that the exhaust passage 204 is continuously or intermittently opened, that is, at the moment, the drainage passage 107 is continuously or intermittently communicated with the outside atmosphere through the exhaust passage 204, and the gas in the pressure building chamber 101 is exhausted.

The further application based on the exhaust self-checking method is the AMT clutch electromechanical air tightness self-checking method. Firstly, a drainage channel is configured according to the same process, and the exhaust self-checking device is configured on the drainage channel. Fig. 8 is a state diagram showing a state in which the electromechanical device with the self-checking AMT clutch shown in fig. 1 checks airtightness. Referring to fig. 8, the exhaust self-checking device 200 is opened, then the force-bearing guide rod 102 is pushed to compress the piston member 103, and the pressure building chamber 101 is compressed to the minimum volume, so that the gas in the pressure building chamber 101 is exhausted in the process that the piston member 103 compresses the pressure building chamber 101, then when the pressure building chamber 101 is compressed to the minimum volume, the exhaust self-checking device 200 is controlled to be closed, under an ideal condition at this moment, if the sealing effect of each sealing member in the cylinder body is good, the negative pressure of the gas on the piston member 103 in the pressure building chamber 101 should be balanced with the elastic force of the return spring 104 in the pressure building chamber 101 and the thrust of the force-bearing guide rod 102 on the piston member, and then the force-bearing guide rod 102 should keep its position within a preset time interval, that is, so that the pressure building chamber 101 keeps the minimum volume. If the force bearing guide rod 102 performs the return movement and generates displacement immediately after the exhaust self-checking device is closed, the force bearing balance of the piston piece 103 in the force bearing guide rod is broken, that is, the sealing effect of the sealing piece in the force bearing guide rod is not good. In this embodiment, the seals within the cylinder include a seal seat 209, a seal gland 207, a lip seal on the piston member 103, and the like.

The above description of the present invention is provided to help understand the method and the core idea of the present invention, and the purpose of the present invention is to allow people familiar with the art to understand the contents of the present invention and to implement the method, and thus the protection scope of the present invention cannot be limited by the above description. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. The utility model provides a take self-checking AMT clutch electromechanical device which characterized in that, take self-checking AMT clutch electromechanical device includes:

one end of the drainage channel is connected with the atmosphere, and the other end of the drainage channel is connected with a pipeline between a valve port of a control valve body of the clutch electromechanical device and the pressure building cavity;

the device still includes exhaust self-checking device, form exhaust passage in the exhaust self-checking device, exhaust self-checking device includes:

the fixing piece is fixedly connected with a channel opening of the drainage channel;

a movable member extending in the inner cavity of the fixed member and being displaceable in the direction of extension of the inner cavity of the fixed member,

under normal state, the movable piece keeps the trend of moving towards the direction of the fixed piece and is limited by the fixed piece, and then the exhaust channel is closed;

in the use state, the sealing between the movable piece and the fixed piece is released, and then the exhaust channel is opened.

2. The automated mechanical device with self-test AMT clutch of claim 1, wherein the exhaust self-test device comprises:

the fixing piece is an outer valve body which is fixedly connected with a channel port of the drainage channel, and the exhaust channel is formed in an inner cavity of the outer valve body;

the retainer is arranged in the inner cavity of the outer valve body and is fixedly connected with the wall surface of the exhaust channel;

the moving part is a door control device which extends into the retainer, an elastic component is arranged between the door control device and the retainer, wherein,

the door control device is provided with a sealing seat, the elastic component has a preset deformation amount, and the traction force generated by the deformation amount enables the door control device to be in a tendency of moving towards the direction of the elastic component and limiting the sealing seat by the inner wall of the retainer under a normal state, so that the exhaust channel is separated from the drainage channel at the moment;

in a use state, the door control device overcomes the traction force of the elastic component and moves away from the elastic component, the limit between the sealing seat and the inner wall of the retainer is released, and at the moment, the exhaust channel is communicated with the drainage channel.

3. The automated mechanical device with self-test AMT clutch of claim 2,

a first convergent annular inclined plane is formed on the inner side wall surface of the outer valve body, a sealing sleeve is arranged between the inner side wall surface of the outer valve body at the first annular inclined plane and the outer side wall surface of the retainer, and sealing is formed between the outer valve body and the retainer;

and a second convergent annular inclined plane is formed on the inner side wall surface of the retainer, and the sealing seat and the second annular inclined plane are extruded and limited to form sealing in a normal state.

4. The AMT clutch electromechanical device with self-test of claim 3, wherein the door control device is a long straight piece with I-shaped cross section, and two flanges are formed at two ends of the door control device respectively, and are respectively defined as a first flange fixedly connected with the elastic component and a second flange fixedly connected with the sealing seat.

5. The self-testing AMT clutch electro-mechanical device according to claim 4, wherein the door control device further comprises a third flange, and the door control device is a long straight member with a cross section shaped like a "king", the third flange is located between the first flange and the second flange in the extending direction of the door control device, and the sealing seat is located between the third flange and the second flange.

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