CN100494744C - Transmission gear locking device - Google Patents
Transmission gear locking device Download PDFInfo
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- CN100494744C CN100494744C CNB2005100197650A CN200510019765A CN100494744C CN 100494744 C CN100494744 C CN 100494744C CN B2005100197650 A CNB2005100197650 A CN B2005100197650A CN 200510019765 A CN200510019765 A CN 200510019765A CN 100494744 C CN100494744 C CN 100494744C
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- lock pin
- linear actuator
- pneumatic linear
- gear
- rotating shaft
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Abstract
The invention relates to a gear locking device of a transmission, in particular to a gear locking device for a manual transmission of an automobile. The gear shifting mechanism comprises a telescopic lock pin mechanism arranged on the gearbox body and a gear shifting rotating shaft with a limiting linkage mechanism, wherein the telescopic lock pin mechanism is configured with the limiting linkage mechanism on the gear shifting rotating shaft and is arranged on the gearbox body at the position corresponding to the limiting linkage mechanism. The invention has the beneficial effects that: 1. the swing type gear locking device is arranged on the gear shifting rotating shaft to lock the gear shifting of the transmission, so that the structure is simple, the modification is easy, the gear shifting resistance is not increased, and the gear shifting is light; 2. the automatic gear-disengaging of the transmission can be effectively prevented, the reliability is high, the effect is good, and the operation is simple and convenient; 3. when the driving piece is failed, the lock pin can retract under the action of the return spring, the locking of the gear shifting rotating shaft is cancelled, and the original gear shifting locking performance of the transmission is not influenced.
Description
Technical field
The present invention relates to a kind of shift locking device for transmission, in particular for the shift locking device of manual gear of vehicle.
Background technique
Extensively adopt mechanical transmission on the Hyundai Motor.Mechanical transmission is made up of gearbox, speed changing transmission gear and speed-change and gearshift operating mechanism usually, the wherein speed-change and gearshift operating mechanism gear shift rotating shaft that includes shift fork, declutch shift shaft, shift lever and link with gear shifting rocking arm.Out of supply automatically for preventing speed changer, in declutch shift shaft and gear shift rotating shaft, self-locking and interlock are set usually, these devices are mostly formed by the groove configuration that is provided with in bullet pin and elastic steel ball and declutch shift shaft and the gear shift rotating shaft.In the ordinary course of things, can play the speed changer effect out of supply automatically that prevents.But under some operating mode, as when certain speed of a motor vehicle descending, the rotating speed of pine tar door, motor descends, clutch collar does not catch up with the speed that engages gear ring, at this moment prevent out of supply locking power,, be easy to cause out of supply as operator cabin or chassis vibration by the shift shaft self-locking spring.The more than mono-lever control reflection of this situation is many, and two lever operations also happen occasionally.Therefore, the reliability of locking device is still waiting further raising in the automobile speed variator shift operating mechanism.
Summary of the invention
Technical problem to be solved by this invention is to be the deficiency that exists at above-mentioned prior art and a kind of shift locking device for transmission that speed changer is out of supply automatically, reliability is higher that can effectively prevent is provided, especially the automotive transmission shift locking device.
Technological scheme of the present invention is: comprise the flexible latch gear that is installed on the gearbox casing and with the gear shift rotating shaft of spacing linking mechanism, spacing linking mechanism phase configuration in described flexible latch gear and the gear shift rotating shaft, and be arranged on the gearbox casing with spacing linking mechanism corresponding section; Described flexible latch gear comprises lock pin, return spring and the lock pin actuator that links to each other with lock pin; Described lock pin actuator is a pneumatic linear actuator, and the piston lower end and the lock pin of described pneumatic linear actuator are connected as one, and the epicoele of pneumatic linear actuator is the locking air chamber, and the cavity of resorption of pneumatic linear actuator is the return air chamber, and pneumatic linear actuator is communicated with the pressure gas source control system; Described pressure gas source control system is divided into two-way, and one the tunnel is gas receiver, directly is communicated with the pneumatic linear actuator epicoele, is the normal open pressure gas source; The pressure gas source that another Lu Weiyu automobile clutch booster air chamber links to each other is communicated with the pneumatic linear actuator cavity of resorption by the booster air chamber, when stepping on clutch, and described pneumatic linear actuator cavity of resorption and pressure gas source conducting.
Press such scheme, described spacing linking mechanism comprises spacing snap ring and stop member, and described spacing snap ring is by keyway and gear shift rotating shaft phase configuration, and spacing snap ring is provided with along the axial two ends of gear shift rotating shaft and stops its axially movable stop member; The periphery of spacing snap ring or end face are provided with boss or the groove with the lock pin phase configuration.
The pressure gas source control system also can be communicated with the upper and lower chamber of pneumatic linear actuator by one two position four-way solenoid valve by gas receiver and constitute; The control switch of two position four-way solenoid valves is arranged in operator cabin and links with clutch pedal or shift of transmission selector gear.During release the clutch pedal, solenoid valve return, the locking air chamber conducting of gas receiver and pneumatic linear actuator epicoele, the conducting of pneumatic linear actuator cavity of resorption and row (letting out) gas port; During let slip the clutch, solenoid valve conduction moves to right, the return air chamber conducting of gas receiver and pneumatic linear actuator epicoele, and the conducting of pneumatic linear actuator epicoele and row (letting out) gas port makes on the piston and moves.
The present invention will be further described on function below.
Working procedure of the present invention is: when shift is hung into a certain gear, the gear shift rotating shaft drives angle θ of spacing snap ring rotation of spacing linking mechanism, the lock pin of flexible latch gear moves to spacing snap ring direction under the effect of actuator, and with spacing snap ring locking position contact matching, limit spacing snap ring rotation, also just having limited the gear shift rotating shaft rotates, it turns to the effect of gear shift rotating shaft by spacing snap ring and is locked in a position securely, can prevent effectively that automotive transmission is out of supply automatically.When the needs gear shift, drive lock pin and move to the direction of leaving spacing snap ring, remove locking to spacing snap ring, the rotational lock of gear shift rotating shaft is disengaged, can get back to neutral position from the engage a gear position, θ angle of deflection, hang into other gear from neutral gear again, thus the gear shift of realization speed changer.After engage a gear put in place, lock pin stretched out, again with spacing snap ring locking.For pneumatic linear actuator, if the air supply system of device lost efficacy, lock pin can be withdrawn under the effect of return spring, cancels the control to gear shift, does not influence the gear shift of speed changer.This function is very important concerning the vehicle gearing parking operating mode that air supply system air pressure reduces simultaneously.
In sum, beneficial effect of the present invention is:
By on the gear shift running shaft, shift locking device for transmission being set, the gear shift of speed changer is locked, prevent that effectively speed changer is out of supply automatically.
With spacing snap ring locking, particularly on spacing snap ring, even be subjected to extraneous load impacting, can not deviate from from spacing snap ring yet, prevents the automatic reliability height out of supply of speed changer, effective by lock pin with the lock pin secure lock for the air pressure by pneumatic linear actuator by lock pin.
Make lock pin leave the lock position by gas pressure in the return air chamber and return spring elastic force, do not increase the gear shift resistance, gear shift is light.
The restriction that realizes gear shift rotating shaft campaign is controlled in interlock by clutch pedal, and is easy and simple to handle reliable, do not change driver's driving habits.
When the pressure gas source control system lost efficacy, lock pin can move to the direction of leaving spacing snap ring under the effect of return spring, and cancellation does not influence the normal use of speed changer to the locking of gear shift rotating shaft.
The present invention is simple in structure, and is easy and simple to handle, is easy to repacking, and do not influence the original performance and the effect of speed changer.
Description of drawings
Fig. 1 is the positive sectional structure chart of one embodiment of the invention.
Fig. 2 is the A-A sectional view among Fig. 1, also is the structural diagrams of lockup state.
Fig. 3 is the pneumatic control part schematic representation of one embodiment of the invention.
Fig. 4 is the pneumatic control part schematic representation of another embodiment of the present invention.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment 1:
Present embodiment Transmission gear lockable mechanism comprises the flexible latch gear that is fixed on the gearbox casing 15 and with the gear shift rotating shaft 2 of spacing linking mechanism, flexible latch gear 5 cooperates with spacing linking mechanism, and realization is to the locking of gear shift rotating shaft.Referring to Fig. 1.
The pressure gas source control system is divided into two-way, and one the tunnel is automobile gas receiver 21, directly is communicated with pneumatic linear actuator locking air chamber 6, is the normal open pressure gas source; Another road comprises clutch booster air chamber 9 and return pressure gas source 22, and return pressure gas source 22 is connected with pneumatic linear actuator return air chamber 7 by clutch booster air chamber 9, when let slip the clutch, and return air chamber 7 and 22 conductings of return pressure gas source.Referring to Fig. 3.
Referring to Fig. 1, Fig. 2, in gear shift rotating shaft 2, offer axial keyway 15, spacing snap ring 4 is sleeved on the gear shift running shaft 2, and by the key 23 of endoporus setting and keyway 15 phase configuration of gear shift rotating shaft, spacing snap ring 4 peripheries are provided with boss 24, and the boss cross section is trapezoidal (up big and down small), are provided with stop member 25a, 25b along gear shift rotating shaft 2 axial limiting snap rings 4 two ends, stop member links to each other with gearbox casing 1, constitutes spacing linking mechanism thus.
On function, present embodiment is described further below:
Referring to Fig. 2, the working procedure of present embodiment is: when automobilism, clutch pedal is in the unlocked position, 6 pressurisings of pneumatic linear actuator locking air chamber, lock pin 3 overcomes return spring 8 elastic force under the pressurized piston action, move to the lock position of spacing snap ring 4, limit the rotation of spacing snap ring 4 and gear shift rotating shaft 2, prevent that speed changer is out of supply automatically; When stepping on clutch preparation gear shift, gas in the clutch booster flows into pneumatic linear actuator return air chamber 7, and under the acting in conjunction of return air chamber 7 gas pressures and return spring 8 elastic force, lock pin 3 retractions are recessed the lock position, releasing can be carried out gear shift to the locking of spacing snap ring 4 and gear shift running shaft 2.
Referring to Fig. 1, spacing linking mechanism is set on gear shift running shaft 2, flexible latch gear 5 is set on the gearbox casing 1 of spacing snap ring 4 corresponding parts, cooperate the rotation of restriction gear shift running shaft 2 with spacing linking mechanism by flexible latch gear 5.
Gas pressure by pneumatic linear actuator locking air chamber 6 firmly is pressed on the locking position of spacing snap ring 4, the rotation of restriction gear shift running shaft 2 with lock pin 3.
Be provided with prevention its axially movable stop member 25a, 25b along gear shift rotating shaft 2 axial limiting snap rings 4 two ends, limit the axial motion of spacing snap ring 4, the boss 24 on spacing snap ring 4 outer surfaces cooperates with lock pin 3, the rotation of restriction gear shift running shaft 2.
Embodiment 2:
Referring to Fig. 4, Fig. 2, present embodiment scheme and embodiment's 1 difference is: the pressure gas source control system comprises gas receiver 21 and one two position four-way solenoid valve 12, electromagnetic valve switch 11 and clutch pedal interlock; Gas receiver 21 links to each other with pneumatic linear actuator 16 by two position four-way solenoid valves by the road, and time-delay break trigger 13 is serially connected between automatically controlled end of solenoid valve and the control switch 11.Release the clutch pedal, control switch disconnects, the solenoid valve return, gas receiver 21 and 6 conductings of pneumatic linear actuator locking air chamber, 7 exhausts of return air chamber, lock pin 3 stretches out and is in the locking position; Let slip the clutch, the control switch closure, solenoid valve displacement break-in, gas receiver 21 and 7 conductings of return air chamber, 6 exhausts of locking air chamber, lock pin 3 retractions leave the lock position, remove the locking to gear shift running shaft 2, realize gear shift.Other structure of present embodiment is identical with embodiment 1.
The present invention not only is confined to above-mentioned mode of execution, can also be by being connected wire drawing between flexible latch gear 5 and the clutch pedal, by the motion of clutch pedal and wire drawing control lock pin 3; Spacing snap ring 4 outer surfaces can also be groove, can reach same effect, all belong to scope of the present invention.
Its concrete embodiment constitutes by being connected wire drawing between lock pin and the clutch pedal for described lock pin actuator, between clutch pedal and flexible latch gear, be connected wire drawing, with the actuator of wire drawing as the lock pin retraction, return spring presses down lock pin and stretches out, when let slip the clutch, by wire drawing lock pin is lifted retraction, removed locking, can carry out gear shift spacing snap ring.
Claims (9)
1, a kind of shift locking device for transmission, comprise the flexible latch gear that is installed on the gearbox casing and with the gear shift rotating shaft of spacing linking mechanism, spacing linking mechanism phase configuration in described flexible latch gear and the gear shift rotating shaft, and be arranged on the gearbox casing with spacing linking mechanism corresponding section; Described flexible latch gear comprises lock pin, return spring and the lock pin actuator that links to each other with lock pin; Described lock pin actuator is a pneumatic linear actuator, and the piston lower end and the lock pin of described pneumatic linear actuator are connected as one, and the epicoele of pneumatic linear actuator is the locking air chamber, and the cavity of resorption of pneumatic linear actuator is the return air chamber, and pneumatic linear actuator is communicated with the pressure gas source control system; It is characterized in that: described pressure gas source control system is divided into two-way, and one the tunnel is gas receiver, directly is communicated with the pneumatic linear actuator epicoele, is the normal open pressure gas source; The pressure gas source that another Lu Weiyu automobile clutch booster air chamber links to each other is communicated with the pneumatic linear actuator cavity of resorption by the booster air chamber, when stepping on clutch, and described pneumatic linear actuator cavity of resorption and pressure gas source conducting.
2, by the described shift locking device for transmission of claim 1, it is characterized in that: described return spring is positioned at the return air chamber of pneumatic linear actuator cavity of resorption.
3, by claim 1 or 2 described shift locking device for transmission, it is characterized in that: described spacing linking mechanism comprises spacing snap ring and stop member, described spacing snap ring is by keyway and gear shift rotating shaft phase configuration, and spacing snap ring is provided with along the axial two ends of gear shift rotating shaft and stops its axially movable stop member.
4, by the described shift locking device for transmission of claim 3, it is characterized in that: the periphery of described spacing snap ring or end face are provided with boss or the groove with the lock pin phase configuration.
5, a kind of shift locking device for transmission, comprise the flexible latch gear that is installed on the gearbox casing and with the gear shift rotating shaft of spacing linking mechanism, spacing linking mechanism phase configuration in described flexible latch gear and the gear shift rotating shaft, and be arranged on the gearbox casing with spacing linking mechanism corresponding section; Described flexible latch gear comprises lock pin, return spring and the lock pin actuator that links to each other with lock pin; Described lock pin actuator is a pneumatic linear actuator, and the piston lower end and the lock pin of described pneumatic linear actuator are connected as one, and the epicoele of pneumatic linear actuator is the locking air chamber, and the cavity of resorption of pneumatic linear actuator is the return air chamber, and pneumatic linear actuator is communicated with the pressure gas source control system; It is characterized in that: described pressure gas source control system is communicated with the upper and lower chamber of pneumatic linear actuator by one two position four-way solenoid valve by pressure gas source and constitutes, the control switch of described two position four-way solenoid valves and clutch pedal or shift of transmission selector gear link, during release the clutch pedal, the solenoid valve return, the locking air chamber conducting of gas receiver and pneumatic linear actuator epicoele, pneumatic linear actuator cavity of resorption and relief opening conducting; During let slip the clutch, solenoid valve conduction moves to right, the return air chamber conducting of gas receiver and pneumatic linear actuator epicoele, and pneumatic linear actuator epicoele and relief opening conducting make on the piston and move.
6, by the described shift locking device for transmission of claim 5, it is characterized in that: described return spring is positioned at the return air chamber of pneumatic linear actuator cavity of resorption.
7, by claim 5 or 6 described shift locking device for transmission, it is characterized in that: described spacing linking mechanism comprises spacing snap ring and stop member, described spacing snap ring is by keyway and gear shift rotating shaft phase configuration, and spacing snap ring is provided with along the axial two ends of gear shift rotating shaft and stops its axially movable stop member.
8, by the described shift locking device for transmission of claim 7, it is characterized in that: the periphery of described spacing snap ring or end face are provided with boss or the groove with the lock pin phase configuration.
9, a kind of shift locking device for transmission, comprise the flexible latch gear that is installed on the gearbox casing and with the gear shift rotating shaft of spacing linking mechanism, spacing linking mechanism phase configuration in described flexible latch gear and the gear shift rotating shaft, and be arranged on the gearbox casing with spacing linking mechanism corresponding section; Described flexible latch gear comprises lock pin, return spring and the lock pin actuator that links to each other with lock pin; It is characterized in that: described lock pin actuator is to constitute by being connected wire drawing between lock pin and the clutch pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100197650A CN100494744C (en) | 2005-11-09 | 2005-11-09 | Transmission gear locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100197650A CN100494744C (en) | 2005-11-09 | 2005-11-09 | Transmission gear locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1763403A CN1763403A (en) | 2006-04-26 |
| CN100494744C true CN100494744C (en) | 2009-06-03 |
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ID=36747673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100197650A Active CN100494744C (en) | 2005-11-09 | 2005-11-09 | Transmission gear locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100494744C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245854B (en) | 2008-02-14 | 2010-06-23 | 重庆隆鑫机车有限公司 | Embedded vehicle-parking locking device of motor vehicle |
| DE102008028619A1 (en) * | 2008-06-18 | 2009-12-24 | Ecs Engineered Control Systems Ag | Switching device for a transmission |
| CN102211286B (en) * | 2011-03-23 | 2013-06-05 | 桂林机床股份有限公司 | Latch bolt unlocking mechanism capable of automatically controlling machine tool stroke |
| GB201118624D0 (en) | 2011-10-27 | 2011-12-07 | Land Rover Uk Ltd | Electric selector control system and related method |
| CN104129285A (en) * | 2014-07-11 | 2014-11-05 | 力帆实业(集团)股份有限公司 | Downward sliding prevention system and downward sliding prevention device thereof |
| CN105351510A (en) * | 2015-12-14 | 2016-02-24 | 陕西法士特齿轮有限责任公司 | Transmission main box lock stop protection mechanism |
| CN105626718A (en) * | 2016-02-21 | 2016-06-01 | 上海洲跃生物科技有限公司 | Lock pin-type overrunning clutch |
| CN110219977B (en) * | 2018-03-01 | 2023-09-26 | 上海汽车变速器有限公司 | Multifunctional self-locking unit for gear of speed changer |
-
2005
- 2005-11-09 CN CNB2005100197650A patent/CN100494744C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1763403A (en) | 2006-04-26 |
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| C14 | Grant of patent or utility model | ||
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Owner name: DONGFENG CAR CO. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130717 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 442001 SHIYAN, HUBEI PROVINCE TO: 430056 WUHAN, HUBEI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130717 Address after: 430056 Wuhan economic and Technological Development Zone, Hubei Province, Dongfeng Road, No. 1, No. Patentee after: Dongfeng Motor Corporation Address before: Shiyan City, Hubei province 442001 City Road No. 5 Patentee before: DONGFENG MOTER Co.,Ltd. |