CN201461782U - Electric control pneumatic type clutch actuating mechanism - Google Patents

Electric control pneumatic type clutch actuating mechanism Download PDF

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Publication number
CN201461782U
CN201461782U CN2009200868625U CN200920086862U CN201461782U CN 201461782 U CN201461782 U CN 201461782U CN 2009200868625 U CN2009200868625 U CN 2009200868625U CN 200920086862 U CN200920086862 U CN 200920086862U CN 201461782 U CN201461782 U CN 201461782U
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CN
China
Prior art keywords
solenoid valve
clutch
exhaust
links
cylinder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009200868625U
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Chinese (zh)
Inventor
于俊鹏
余建华
徐永久
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Dongfeng Commercial Vehicle Co Ltd
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Dongfeng Motor Co Ltd
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Filing date
Publication date
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Priority to CN2009200868625U priority Critical patent/CN201461782U/en
Application granted granted Critical
Publication of CN201461782U publication Critical patent/CN201461782U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an automatically controlled pneumatic type clutch actuating mechanism, it is including being connected with push rod, cylinder and the mechanism body that clutch separates the fork, wherein, the cylinder comprises piston, spring and piston rod, and the piston rod links to each other with the push rod, and the cylinder body in the cylinder links to each other with the mechanism body internal at least two inlet channel that links to each other with the working air chamber of cylinder body and at least two exhaust passage that link to each other with the working air chamber of cylinder body of being equipped with of mechanism can control the inlet channel solenoid valve of inlet channel break-make on every inlet channel, be equipped with the exhaust solenoid valve that can control the exhaust passage break-make on every exhaust passage. The utility model discloses the operation is reliable, and control effect is good, and response speed is fast, can satisfy the vehicle at the starting, separation and the demand that combines of clutch when the in-process of marcing gear shift. And when the clutch is combined, the combination of the four electromagnetic valves can be used for quickly and smoothly combining the clutch when the clutch is in different combination stages.

Description

A kind of electric-controlled pneumatic type clutch actuator
Technical field
The utility model relates to the gearbox clutch actuating mechanism, refers to a kind of electric-controlled pneumatic type clutch actuator particularly.
Technical background
The application of AMT technology on commercial car now is more and more, and a very important actuator is exactly a clutch actuating mechanism in this technology, and the AMT car needs clutch actuating mechanism can realize clutch automatically under electronic control separation and combines.Pneumatic type clutch actuator is because it is compared to hydraulic pressure and electrodynamic type, and is with low cost, demonstrated its unique advantage.The present electric-controlled pneumatic type clutch actuator that occurs, it is clutch booster improvement at traditional hydraulic control gas, for example publication number is to have introduced " electric-controlled pneumatic type clutch booster unit and method of operating thereof " in the Chinese invention patent specification of CN101280811A, it provides the pneumatic clutch realized of a kind of independent use device of control automatically, used a solenoid valve with two iron cores, another control exhaust of iron core control air inlet, but add the sensor of perception clutch separation in conjunction with situation, the realization clutch is controlled automatically.The pressurized gas of work air chamber are led in the non-direct control of the solenoid valve of this device, but indirect control is led to the pressurized gas of two auxiliary air cavitys to realize control, and this indirect control mode has reduced the speed of response of system.And in the clutch cohesive process, need mechanism can quick adjustment to make the combination of clutch smooth and steady, and adjustable being limited in scope of this kind device, the combination of solenoidoperated cluthes well, give automobile when starting or in the traveling process gear shift impact.This external structure is too complicated, the processing request height.
Summary of the invention
The purpose of this utility model just provides a kind of simple in structure, the electric-controlled pneumatic type clutch actuator that speed of response is fast.The control combination by four solenoid valves when clutch is in difference in conjunction with the stage of this mechanism makes that the combination of clutch is steady rapidly.
For realizing this purpose, the electric-controlled pneumatic type clutch actuator that the utility model is designed, it comprises the push rod that is connected with clutch release fork, cylinder and mechanism body, wherein, cylinder is by piston, spring and piston rod are formed, piston rod links to each other with push rod, cylinder body in the cylinder links to each other with mechanism body, in described mechanism body, be provided with at least two gas-entered passageways that link to each other with the work air chamber of cylinder block and at least two exhaust passages that link to each other with the work air chamber of cylinder block, on every gas-entered passageway, be provided with the air inlet solenoid valve that to control the gas-entered passageway break-make, on every exhaust passage, be provided with the exhaust solenoid valve that to control the exhaust passage break-make.
Be provided with link to each other with the work air chamber main airway of the other end sealing of an end in the described structure, be connected on this main airway by described gas-entered passageway and the exhaust passage.
The inlet hole of described air inlet solenoid valve links to each other with gas-entered passageway, and the exhaust port of air inlet solenoid valve links to each other with main airway; The inlet hole of exhaust solenoid valve links to each other with main airway, and the exhaust port of exhaust solenoid valve links to each other with atmosphere by the exhaust passage.
Described air inlet solenoid valve is arranged on the connecting part of gas-entered passageway and main airway; Exhaust solenoid valve is arranged on the connecting part of exhaust passage and main airway.
Described piston rod passes the cylinder block rear end and inserts and be located in the piston rod groove of mechanism body.
Side in described mechanism body is provided with sensor switching mechanism, and in sensor switching mechanism angular displacement sensor is set; Be provided with the sensor screw that links to each other with sensor switching mechanism in the rear end of described piston rod.
Advantage of the present utility model is: reliable after the utility model adopts such scheme, control effectively, and can satisfy vehicle and start to walk, the separation of clutch and the demand of combination during gear shift in the traveling process.And clutch in conjunction with the time be at clutch and different can make that the combination of clutch is steady rapidly by the control combination of four solenoid valves during in conjunction with the stage.Clutch Control requirement when satisfying vehicle shift separates rapidly, in conjunction with steadily, accelerated the speed of response of system, and mechanism structure is simple, easily processing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is arranged on structure for amplifying schematic representation in the gas circuit for air inlet solenoid valve in the utility model.
Wherein, 1-push rod, 2-piston, 3-cylinder block, 4-piston rod, 5-spring, 6-mechanism body, 7-sensor screw, 8-air inlet solenoid valve, 9-exhaust solenoid valve, the switching mechanism of 10-sensor, 11-angular displacement sensor, 12-piston rod groove, 13-clutch release fork, 14-gas-tpe fitting, 15-seal ring, a-work air chamber, b-gas-entered passageway, c-exhaust passage, d-main airway, the inlet hole of e-air inlet solenoid valve, the exhaust port of f-air inlet solenoid valve, the inlet hole of g-exhaust solenoid valve, the exhaust port of h-exhaust solenoid valve.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
A kind of electric-controlled pneumatic type clutch actuator, as shown in the figure, it comprises the push rod 1 that is connected with clutch release fork 13, cylinder and mechanism body 6, wherein, cylinder is by piston 2, spring 5 and piston rod 4 are formed, piston rod 4 links to each other with push rod 1, cylinder body 3 in the cylinder links to each other with mechanism body 6, wherein, in described mechanism body 6, be provided with at least two gas-entered passageway b that link to each other with the work air chamber a of cylinder block 3 and at least two exhaust passage c that link to each other with the work air chamber a of cylinder block 3, inlet end at described gas-entered passageway b is provided with gas-tpe fitting 14, and gas-entered passageway b links to each other with high-pressure air source by gas-tpe fitting 14.On every gas-entered passageway b, be provided with the air inlet solenoid valve 8 that to control gas-entered passageway b break-make, on every exhaust passage c, be provided with the exhaust solenoid valve 9 that to control exhaust passage c break-make.
Above-mentioned air inlet solenoid valve 8 is selected normal close type plug-in type switch electromagnetic valve for use, and exhaust solenoid valve 9 is selected open type plug-in type switch electromagnetic valve for use.
Be provided with link to each other with the work air chamber a main airway d of the other end sealing of an end in the described structure 6, be connected on this main airway d by described gas-entered passageway b and the exhaust passage c.
The inlet hole e of described air inlet solenoid valve 8 links to each other with gas-entered passageway b, and the exhaust port f of air inlet solenoid valve 8 links to each other with main airway d; The inlet hole g of exhaust solenoid valve 9 links to each other with main airway d, and the exhaust port h of exhaust solenoid valve 9 links to each other with atmosphere by exhaust passage c.
Described air inlet solenoid valve 8 is arranged on the connecting part of gas-entered passageway b and main airway d; Exhaust solenoid valve 9 is arranged on the connecting part of exhaust passage c and main airway d, and is provided with the seal ring 15 that makes the sealing of main airway d and each bypass channel in each solenoid valve, collaborates preventing.
Described piston rod 4 passes cylinder block 3 rear ends and inserts and be located in the piston rod groove 12 of mechanism body 6.
Side in described mechanism body is provided with sensor switching mechanism 10, and in sensor switching mechanism 10 angular displacement sensor 11 is set; Being provided with the sensor screw 7. sensor switching mechanisms 10 that link to each other with sensor switching mechanism 10 in the rear end of described piston rod 4 is cover mechanisms that straight-line displacement converted to angular displacement, it passes to sensor switching mechanism 10 by the sensor screw 7 that is installed on the piston rod 4 with straight line motion, sensor switching mechanism 10 converts straight-line displacement to angular displacement and gives angular displacement sensor 11, and so just the straight-line displacement with mechanism converts electrical signal to.
When the needs clutch separation, electric-controlled pneumatic type clutch actuator starts working, two air inlet solenoid valves 8 are opened in control, open two exhaust solenoid valves 9 simultaneously, Open Here exhaust solenoid valve 9, be that the purpose of unlatching is that the exhaust passage c between cylinder and the atmosphere is cut off because exhaust solenoid valve 9 is normally open solenoid valves.Pressurized gas enter in the cylinder after these actions, promote piston 2, because piston 2 is connected with push rod 1, so finally promote push rod 1 motion, by the degree of angular displacement sensor 11 perception clutch separation, perceive after clutch thoroughly separates, close air inlet solenoid valve 8.
When the needs clutch in conjunction with the time, close exhaust solenoid valve 9, this moment, cylinder was communicated with atmosphere by the other exhaust passage c that connects of air flue d, and the pressurized gas in the cylinder are discharged to atmosphere, the clutch combination also will utilize angular displacement sensor 11 to come the combination degree of perception clutch herein.When clutch in conjunction with the time, if make by exhaust solenoid valve 9 free exhausts and the clutch combination will cause the impact in the cohesive process excessive like this, cohesive process is not steady.So in the cohesive process of clutch, need take the control combination of solenoid valve in conjunction with the stage, make clutch smooth and steady combination rapidly different.
The cohesive process of clutch can be divided into three phases, and to be clutch rigidly connected and touched from being separated into principal and subordinate's moving plate fully the phase I, and the moment of torsion between the two also takes place.Second stage is sliding rubbing for principal and subordinate's moving plate produces, and begins to produce moment of torsion and moment of torsion increases gradually, begins to produce power up to vehicle and travel forward.Phase III is that moment of torsion no longer increases, up to the complete combination of clutch.The utility model can be implemented in different clutches in conjunction with the stage by two combinations of advancing four solenoid valves of two rows well solenoidoperated cluthes make whole cohesive process rapidly and steadily in conjunction with speed.Concrete control is as follows: so do not require to act on simultaneously at this stage two exhaust solenoid valves 9 in conjunction with rapidly because principal and subordinate's moving plate does not contact not influence to impact in the phase I.Produce friction at second stage principal and subordinate moving plate, moment of torsion is also increasing, if quick combination certainly will impact as previous stage, so this stage requires in conjunction with slow, so open one of them air inlet solenoid valve 8 at exhaust solenoid valve 9 of this control and by the judgement of impact in stage, on one side air inlet exhaust on one side make the clutch smooth and steady combination by both difference in flow with the impact of minimum.Phase III principal and subordinate moving plate no longer increases moment of torsion, so the combination in this stage does not influence impact yet, makes the quick combination of clutch so control two exhaust solenoid valves 9 again simultaneously.Angular displacement sensor 11 is judged the three phases of clutch cohesive process by the change in displacement of piston rod 4 in whole process.
Clutch is described further with regard to the trend of gas in the utility model in gas circuit below: when need separate, opening exhaust solenoid valve 9 (open type plug-in type switch electromagnetic valve) makes main airway d and atmosphere cut off, open air inlet solenoid valve 8 then, gas enters gas-entered passageway b, inlet hole e by air inlet solenoid valve 8 enters in the air inlet solenoid valve 8 then, enter work air chamber a after exhaust port f by air inlet solenoid valve 8 enters main airway d at last, and then promote piston 2 and make clutch separation.When the needs clutch in conjunction with the time, close air inlet solenoid valve 8 and exhaust solenoid valve 9, gas among the work air chamber a enters main airway d, inlet hole g by exhaust solenoid valve 9 enters in the exhaust solenoid valve 9 then, enter atmosphere after exhaust port h by exhaust solenoid valve 9 enters exhaust passage c at last, and then the pressurized gas of the air chamber a that will work rows is to atmosphere, makes the clutch combination.

Claims (6)

1. electric-controlled pneumatic type clutch actuator, it comprises the push rod (1) that is connected with clutch release fork (13), cylinder and mechanism body (6), wherein, cylinder is by piston (2), spring (5) and piston rod (4) are formed, piston rod (4) links to each other with push rod (1), cylinder body in the cylinder (3) links to each other with mechanism body (6), it is characterized in that: in described mechanism body (6), be provided with at least two gas-entered passageways (b) that link to each other with the work air chamber (a) of cylinder block (3) and at least two exhaust passages (c) that link to each other with the work air chamber (a) of cylinder block (3), on every gas-entered passageway (b), be provided with the air inlet solenoid valve (8) that to control gas-entered passageway (b) break-make, on every exhaust passage (c), be provided with the exhaust solenoid valve (9) that to control exhaust passage (c) break-make.
2. a kind of electric-controlled pneumatic type clutch as claimed in claim 1 actuator, it is characterized in that: be provided with link to each other with work air chamber (a) main airway (d) of the other end sealing of an end in the described structure (6), be connected on this main airway (d) by described gas-entered passageway (b) and exhaust passage (c).
3. a kind of electric-controlled pneumatic type clutch as claimed in claim 2 actuator, it is characterized in that: the inlet hole (e) of described air inlet solenoid valve (8) links to each other with gas-entered passageway (b), and the exhaust port (f) of air inlet solenoid valve (8) links to each other with main airway (d); The inlet hole (g) of exhaust solenoid valve (9) links to each other with main airway (d), and the exhaust port (h) of exhaust solenoid valve (9) links to each other with atmosphere by exhaust passage (c).
4. a kind of electric-controlled pneumatic type clutch as claimed in claim 3 actuator, it is characterized in that: described air inlet solenoid valve (8) is arranged on the connecting part of gas-entered passageway (b) and main airway (d); Exhaust solenoid valve (9) is arranged on the connecting part of exhaust passage (c) and main airway (d).
5. a kind of electric-controlled pneumatic type clutch as claimed in claim 1 actuator, it is characterized in that: described piston rod (4) passes cylinder block (3) rear end and inserts and be located in the piston rod groove (12) of mechanism body (6).
6. as claim 1 or 5 described a kind of electric-controlled pneumatic type clutch actuators, it is characterized in that: the side in described mechanism body is provided with sensor switching mechanism (10), and in sensor switching mechanism (10) angular displacement sensor (11) is set; Be provided with the sensor screw (7) that links to each other with sensor switching mechanism (10) in the rear end of described piston rod (4).
CN2009200868625U 2009-06-23 2009-06-23 Electric control pneumatic type clutch actuating mechanism Expired - Lifetime CN201461782U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200868625U CN201461782U (en) 2009-06-23 2009-06-23 Electric control pneumatic type clutch actuating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200868625U CN201461782U (en) 2009-06-23 2009-06-23 Electric control pneumatic type clutch actuating mechanism

Publications (1)

Publication Number Publication Date
CN201461782U true CN201461782U (en) 2010-05-12

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Application Number Title Priority Date Filing Date
CN2009200868625U Expired - Lifetime CN201461782U (en) 2009-06-23 2009-06-23 Electric control pneumatic type clutch actuating mechanism

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352896A (en) * 2011-09-21 2012-02-15 东风汽车有限公司 Clutch actuating mechanism of mechanical automatic transmission
CN105593553A (en) * 2013-10-02 2016-05-18 舍弗勒技术股份两合公司 Plunger-cylinder assembly
WO2017082437A1 (en) * 2015-11-10 2017-05-18 원광이엔텍 주식회사 Fuel-saving clutch control device using displacement sensor
CN110273939A (en) * 2019-06-30 2019-09-24 潍柴动力股份有限公司 Pneumatic clutch and pneumatic clutch control system with it

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352896A (en) * 2011-09-21 2012-02-15 东风汽车有限公司 Clutch actuating mechanism of mechanical automatic transmission
CN102352896B (en) * 2011-09-21 2013-03-27 东风汽车有限公司 Clutch actuating mechanism of mechanical automatic transmission
CN105593553A (en) * 2013-10-02 2016-05-18 舍弗勒技术股份两合公司 Plunger-cylinder assembly
CN105593553B (en) * 2013-10-02 2019-03-15 舍弗勒技术股份两合公司 Piston-cylinder arrangement
WO2017082437A1 (en) * 2015-11-10 2017-05-18 원광이엔텍 주식회사 Fuel-saving clutch control device using displacement sensor
CN110273939A (en) * 2019-06-30 2019-09-24 潍柴动力股份有限公司 Pneumatic clutch and pneumatic clutch control system with it

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD.

Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD.

Effective date: 20130930

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20130930

Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2

Patentee after: Dongfeng Commercial Vehicle Co.,Ltd.

Address before: 430056 Dongfeng Road, Wuhan Economic & Technological Development Zone, Hubei, Wuhan, China, No. 10

Patentee before: DONGFENG MOTER Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20100512

CX01 Expiry of patent term