CN201547070U - Automatic returning-neutral digital electric shift device - Google Patents
Automatic returning-neutral digital electric shift device Download PDFInfo
- Publication number
- CN201547070U CN201547070U CN 200920221628 CN200920221628U CN201547070U CN 201547070 U CN201547070 U CN 201547070U CN 200920221628 CN200920221628 CN 200920221628 CN 200920221628 U CN200920221628 U CN 200920221628U CN 201547070 U CN201547070 U CN 201547070U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- piston
- valve body
- return spring
- Prior art date
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to an automatic returning-neutral digital electric shift device, belonging to the technical field of hydraulic machinery transmission. The automatic returning-neutral digital electric shift device is characterized by comprising a valve body, a valve rod, a piston, a return spring and an electromagnetic valve, wherein the valve rod and the piston are arranged in the valve body, and the valve rod is connected with the return spring; the switching-on and off modes of the electromagnetic valve are connected with gas passages of both sides of the piston in the valve body; and the moving distance of the valve rod is the same as the moving distance of operating valve rods among shifts of a speed changing box. A pneumatic device controlled by electricity can automatically back to neutral under the action of the return spring in the conditions of power failure and no air pressure. The automatic returning-neutral digital electric shift device has the advantages of simple structure, low cost, easy shift operation, convenient operation, labor strength of drivers reducing, automatic control, and the like.
Description
Technical field
The utility model belongs to hydraulic machine drive technology field, particularly relates to a kind of electric gearshift of grade numerical digit that makes the return trip empty automatically.
Background technique
At present, China produces and the engineering machinery used mostly is fall back two turbine hydraudynamic drive power-shifting transmissions of one grade of the second gear that advances with power-shifting transmission in a large number.This speed changer is the hydraulic power gear shift, operating hydraulically operated shift valve mechanical linkage.The major defect of this mechanism has: (1) adopts mechanical linkage, and shift control power is big.(2) gear changing mode is a hand shift, handles inconvenience, breaks down easily.(3) can not realize automatic control with complete machine.
Summary of the invention
The utility model provides a kind of electric gearshift of grade numerical digit that makes the return trip empty automatically for solving the problem that prior art exists.
The utility model purpose provides a kind of Pneumatic actuator by electric control, can reach simple in structure, handiness, alleviate driver's labor intensity, and can realize the electric gearshift of grade numerical digit that makes the return trip empty automatically of purposes such as control automatically.
The utility model is mainly by valve body, valve rod, return spring, piston and solenoid valve are formed, valve body is fixed on the valve seat of gearbox control valve by a connecting plate, the valve rod of control valve is connected by pin on the valve rod of this device and the gearbox, come the break-make of the piston both sides gas in the control valve body by the break-make of controlling each solenoid valve, will overcome the pretightening force of spring when the two ends of piston are stressed when not waiting and be moved, till piston can not move, thereby the valve rod that drives this device arrives the position of certain requirement, and the displacement distance of valve rod be with each gear of speed changer between the displacement distance of control valve valve rod be identical, that is: the manipulation valve rod on the speed changer arrives certain location, realizes the gearshift action.In addition, this device can be got back to the neutral place automatically cutting off the power supply and not having under the situation of air pressure under the effect of return spring.
The utility model electric gearshift of grade numerical digit that makes the return trip empty automatically adopts following technological scheme:
A kind of electric gearshift of grade numerical digit that makes the return trip empty automatically, be characterized in: comprise valve body, valve rod, piston, return spring and solenoid valve, valve rod and piston are arranged in the valve body, valve rod even is equipped with return spring, solenoid valve break-make mode is connected on the passage of piston both sides gas in the valve body, and the displacement distance of control valve valve rod is identical between each gear of the displacement distance of valve rod and gearbox.
The utility model electric gearshift of grade numerical digit that makes the return trip empty automatically can also adopt following technical measures:
The described electric gearshift of grade numerical digit that makes the return trip empty automatically, be characterized in: valve body is fixed on the valve seat of gearbox control valve by connecting plate.
The described electric gearshift of grade numerical digit that makes the return trip empty automatically, be characterized in: valve rod has the pin that is connected with gearbox control valve valve rod.
The described electric gearshift of grade numerical digit that makes the return trip empty automatically is characterized in: 2-3 piston arranged in the valve body, and valve body is connected with 4-6 solenoid valve.
Advantage that the utlity model has and good effect:
Automatically the electric gearshift of grade numerical digit of making the return trip empty, owing to adopt the utility model brand-new technology scheme, gear changing mode adopts electric gearshift.No matter valve rod and structure of piston have determined this mechanism to be in all gear shift operation flexibly of what gear, do not have stuck phenomenon.Gear shift is by the work of handle control electromagnetic valve, and in complete machine walking and working procedure, the gear signal control gear shift solenoid valve of gear shifting handle makes machine run in required gear.In addition, this device can be got back to the neutral place automatically cutting off the power supply and not having under the situation of air pressure under the effect of return spring.The utlity model has simple in structurely, cost is low, makes gear shift operation laborsaving, convenient, can realize the advantages such as automatic control of complete machine.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the electric gearshift pneumatic system of a utility model schematic representation.
Among the figure, 1-connecting plate, 2-pin, 3-joint, 4-locking nut, 5-valve rod, 6-valve body, 7-solenoid valve, 8-piston, 9-spring.
Embodiment
For further understanding technology contents of the present utility model, characteristics and effect, enumerate following example now, and conjunction with figs. is described in detail as follows:
With reference to accompanying drawing 1 and Fig. 2.
Embodiment 1
A kind of electric gearshift of grade numerical digit that makes the return trip empty automatically comprises valve body, valve rod, piston, return spring and solenoid valve, and valve body 6 is fixed on the valve seat of gearbox control valve by a connecting plate 1.Valve rod 5 and 2 pistons are arranged in the valve body 6, and valve rod 5 even is equipped with 9,3 solenoid valves of return spring, 7 break-make modes and is connected on the passage of piston 8 both sides gases in the valve body 6, and the displacement distance of control valve valve rod is identical between each gear of the displacement distance of valve rod 5 and gearbox.Valve rod 5 has the pin 2 that is connected with gearbox control valve valve rod.
The concrete linkage structure and the working procedure of present embodiment:
Present embodiment is a kind of numerical digit ecp gearshift of the shelves that make the return trip empty automatically, and its structure mainly comprises connecting plate 1, solenoid valve 7, moveable piston 8, valve body 6, valve rod 5, return spring 9 and the joint 3 that is connected with gearbox manipulation valve rod, pin 2 and locking nut 4 compositions.
Below in conjunction with accompanying drawing gearshift procedure is briefly described:
1. advance one grade: solenoid valve M1 and the solenoid valve M3 air inlet of switching on simultaneously, valve rod 5 against the force of the spring under the effect of atmospheric pressure moves to moveable piston 8, because the pressure on moveable piston 8 right sides acts on the power in its left side greater than valve rod, make it keep motionless in present position, valve rod 5 then is in the F1 place, realizes advancing one grade;
2. second gear advances: the solenoid valve M1 air inlet of switching on, and valve rod 5 against the force of the spring under the effect of atmospheric pressure moves to the F2 place always, realizes advancing 2 grades;
3. neutral: all solenoid valves all under the powering-off state, do not have the atmospheric pressure effect in the valve body, valve rod 5 can be got back to the N place under the effect of initial tension of spring, realize neutral;
4. backward gear: the solenoid valve M2 air inlet of switching on, valve rod 5 is moved to the left to the R place under the effect of atmospheric pressure, thereby realizes backward gear.
Gear changing mode adopts electric gearshift.No matter valve rod and structure of piston have determined this mechanism to be in all gear shift operation flexibly of what gear, do not have stuck phenomenon.Gear shift is by the work of handle control electromagnetic valve, and in complete machine walking and working procedure, the gear signal control gear shift solenoid valve of gear shifting handle makes machine run in required gear.
Claims (4)
1. electric gearshift of grade numerical digit that makes the return trip empty automatically, it is characterized in that: comprise valve body, valve rod, piston, return spring and solenoid valve, valve rod and piston are arranged in the valve body, valve rod even is equipped with return spring, solenoid valve break-make mode is connected on the passage of piston both sides gas in the valve body, and the displacement distance of control valve valve rod is identical between each gear of the displacement distance of valve rod and gearbox.
2. the electric gearshift of grade numerical digit that makes the return trip empty automatically according to claim 1, it is characterized in that: valve body is fixed on the valve seat of gearbox control valve by connecting plate.
3. the electric gearshift of grade numerical digit that makes the return trip empty automatically according to claim 1, it is characterized in that: valve rod has the pin that is connected with gearbox control valve valve rod.
4. the electric gearshift of grade numerical digit that makes the return trip empty automatically according to claim 1 is characterized in that: 2-3 piston arranged in the valve body, and valve body is connected with 4-6 solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920221628 CN201547070U (en) | 2009-10-27 | 2009-10-27 | Automatic returning-neutral digital electric shift device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920221628 CN201547070U (en) | 2009-10-27 | 2009-10-27 | Automatic returning-neutral digital electric shift device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547070U true CN201547070U (en) | 2010-08-11 |
Family
ID=42602242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920221628 Expired - Fee Related CN201547070U (en) | 2009-10-27 | 2009-10-27 | Automatic returning-neutral digital electric shift device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836174A (en) * | 2013-12-11 | 2014-06-04 | 潍柴动力股份有限公司 | Automatic transmission and gear selection and shift actuating mechanism thereof |
| CN103883728A (en) * | 2012-12-31 | 2014-06-25 | 洛阳市黄河软轴控制器股份有限公司 | Novel electric-pneumatic control system |
-
2009
- 2009-10-27 CN CN 200920221628 patent/CN201547070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883728A (en) * | 2012-12-31 | 2014-06-25 | 洛阳市黄河软轴控制器股份有限公司 | Novel electric-pneumatic control system |
| CN103836174A (en) * | 2013-12-11 | 2014-06-04 | 潍柴动力股份有限公司 | Automatic transmission and gear selection and shift actuating mechanism thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201568393U (en) | Hydraulic system without pump | |
| CN101915301B (en) | Five-gear automobile gear-box gear-shifting pneumatic device and gear-shifting control method | |
| CN108644166B (en) | Electromagnetic hydraulic valve | |
| CN201547070U (en) | Automatic returning-neutral digital electric shift device | |
| CN200958598Y (en) | Executor system of automatic gearbox | |
| CN201547227U (en) | Numerical control electrically-operated pneumatic gear shifting device | |
| CN103307137A (en) | AMT clutch manual emergency control device | |
| CN202280826U (en) | Hydraulically-controlled speed change mechanism | |
| CN201739489U (en) | Automatic controlling device for slipper gear shifting of fire fighting truck | |
| CN104265878B (en) | The brake fine motion integrated control system of fork truck hydraulic transmission gearbox | |
| CN102359586B (en) | Proportional voltage regulation control system for automatic gearbox of forklift truck | |
| CN204114099U (en) | A kind of hydraulic transmission gearbox proportional hydraulic control system for fork truck | |
| CN201325331Y (en) | Electrically-controlled hydrodynamic gear shifting system of multi-gear transmission of car | |
| CN205001500U (en) | Automatically controlled gearbox hydraulic control device of loader | |
| CN202327056U (en) | Proportional pressure regulation control system for automatic gearbox of forklift | |
| CN203585228U (en) | Four-gear gearbox for electric automobile | |
| CN201382146Y (en) | Three-position gear shifting cylinder | |
| CN204942138U (en) | A kind of hydraulic control guide speed change valve | |
| CN2916276Y (en) | Automatic transmission gear selecting and shifting actuator capable of realizing closed-loop control | |
| CN201916475U (en) | Full-power gear-shifting gear box operating valve for loader | |
| CN201137692Y (en) | Integral shifting operation device for speed variator | |
| CN202006730U (en) | Heavy truck clutch variable-speed control system | |
| CN203098829U (en) | Electric-hydraulic reversing speed change actuator | |
| CN201843988U (en) | Electrical control hydraulic automatic variable-speed system | |
| CN203344864U (en) | Power takeoff control system of dual-H control and eliminating driving power take off |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20171027 |