CN2820586Y - Support shaft hydraulic lifting mechanism control system - Google Patents
Support shaft hydraulic lifting mechanism control system Download PDFInfo
- Publication number
- CN2820586Y CN2820586Y CN 200520107705 CN200520107705U CN2820586Y CN 2820586 Y CN2820586 Y CN 2820586Y CN 200520107705 CN200520107705 CN 200520107705 CN 200520107705 U CN200520107705 U CN 200520107705U CN 2820586 Y CN2820586 Y CN 2820586Y
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- China
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- control system
- bolster
- efficiency pressure
- hydraulic efficiency
- hydraulic
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Abstract
A kind of control system of bolster hydraulic lifting mechanism has electric system, pneumatic control system, hydraulic efficiency pressure system, it is characterized in that: the lift control switch in the electric system is placed on the control panel in the operator's compartment; Electromagnetic valve is set in the pneumatic control system; Pneumatic reversal valve is set in hydraulic efficiency pressure system; Electromagnetic valve in the lifting/lowering master cock control gas circuit makes the gas-liquid change-over valve commutation that is provided with in hydraulic efficiency pressure system, thereby changes liquid flow path direction in the hydraulic efficiency pressure system, makes bolster direction as required rise or descend.Control system can be operated in operator's compartment, has characteristics such as simple in structure, easy and simple to handle, safety height, and can also make oil pressure automatic deloading after the floating support axle arrives upper and lower end position.
Description
Technical field
The utility model belongs to the control system of automobile bolster hydraulic lifting mechanism, is mainly used in the hydraulic lifting mechanism that can promote bolster on the automobile is controlled.
Background technology
At present, known bolster hydraulic pressure lift control system is to be formed by connecting by hand-hydraulic change-over valve, hydraulic lock, oil pipe, joint, oil cylinder, trip shaft assembly and support, and pressure oil is provided by power steerig pump.During use, need under the Parking state, to handle hand change over valve on the ground, make the floating support axle in the Swing Arm Type Balanced Suspension lift, stop or falling by the people.This system can not handle at operator's compartment, uses very inconveniently, and can not make oil pressure automatic deloading after the floating support axle arrives upper and lower end position, easily causes power steerig pump overheated and damage.
The utility model content
The purpose of this utility model is that design is a kind of when automobile parking braking, can carry out the control system of the descending operation of bolster easily in operator's compartment.
Another purpose of the present utility model provides the control system that can carry out descending operation easily in operator's compartment, and it can make oil pressure automatic deloading after the floating support axle arrives upper and lower end position.
The purpose of this utility model is achieved in that the control system that a kind of bolster hydraulic lifting mechanism is provided, this system is made up of electric system, pneumatic control system, hydraulic efficiency pressure system, it is characterized in that: the lifting/lowering master cock in the electric system is placed on the control panel in the operator's compartment; Electromagnetic valve is set in the pneumatic control system; The gas-liquid change-over valve is set in hydraulic efficiency pressure system; Electromagnetic valve in the lifting/lowering master cock control air-channel system makes the gas-liquid change-over valve commutation that is provided with in the hydraulic efficiency pressure system, thereby changes the liquid flow path direction in the hydraulic efficiency pressure system, makes bolster direction as required rise or descend.
The control system of bolster hydraulic lifting mechanism of the present utility model also comprises by rising near switch and the position detecting device that descends and form near switch and connecting panel, postive stop baffle, detecting device adopts to be installed on and detects the trip shaft position signal near switch on the connecting panel, connecting panel is fixed on the cylinder bracket, and postive stop baffle is installed on the trip shaft.
Description of drawings
Fig. 1 is the electric system schematic diagram of the control system of a kind of bolster hydraulic lifting mechanism of the present utility model;
Fig. 2 is liquid, the gas systematic schematic diagram of the control system of a kind of bolster hydraulic lifting mechanism of the present utility model;
Fig. 3 is the position detecting device structural representation of the control system of a kind of bolster hydraulic lifting mechanism of the present utility model.
The specific embodiment
Fig. 1 and Fig. 2 constitute the embodiment of the control system of a bolster hydraulic lifting mechanism of the present utility model.
Fig. 1 is the electric control system of the utility model control system, wherein S1 is the lifting/lowering master cock, S2 is for promoting near switch, and S3 is for descending near switch, and S4 is a baroswitch, Y1 is for promoting electromagnetic valve, Y2 is the decline electromagnetic valve, and K1 is for promoting control relay, and K2 is the decline control relay, E1 is for promoting indicator lamp, and E2 is the decline indicator lamp.
Control principle is as follows:
Lifting/decline condition: car load stops and hand brake valve is in the stopping brake state, this moment S4 baroswitch closure, following control can be implemented.
During lifting: the S1-1 pin gets electric → S2 and gets electric → K1 coil and get electric → K1-87 pin and get electric → Y1 and get electric (connect source of the gas, light E1) → control change-over valve and promote → promotes and put that back → S2 disconnection, K1 reset, Y1 resets in place (disconnection source of the gas, E1 extinguish expression promoted put in place)
During decline: the S1-7 pin gets electric → S3 and gets electric → K2 coil and get electric → K2-87 pin and get electric → Y2 and get electric (connect source of the gas, light E2) → control change-over valve descend → descends and put that back → S3 disconnection, K2 reset, Y2 resets in place (disconnection source of the gas, E2 extinguish expression descended put in place)
I partly is the air path part of the utility model control system among Fig. 2, and L1 is a T-pipe joint, and suitable place picks out one road gas and gets final product in the existing gas circuit of automobile; L2 is a solenoid directional control valve, and L2 controls the output of gas by electric control system, makes gas-liquid change-over valve N1 enter oil cylinder N6 from A or B mouth pressure oil output, and the result makes bolster rise or decline by control requirements.
According to another embodiment of the present utility model, it has also installed position detecting device shown in Figure 3 additional, and wherein 1 is connecting panel, and 2 is that 3 is postive stop baffle near switch (rise or descend near switch), and 4 is screw, and 5 is trip shaft.It is as follows that it detects principle:
Rising is fixed on the connecting panel 1 near switch near switch and decline, and connecting panel 1 is connected with the support of oil cylinder N6, and is corresponding with the angle range of trip shaft assembly near the angular position of switch 2 on connecting panel, can regulate.Postive stop baffle 3 is fixed on the trip shaft midway location, when postive stop baffle turns to end position with trip shaft, covers near switch and promptly sends danger signal, makes change-over valve be returned to unloading condition immediately, and system pressure is removed.
When bolster is promoted, car load palpus braking during standstill, chaufeur is pressed lifting/lowering master cock " rising " position that is installed on the bridge operation panel in operator's compartment, lifting electromagnetic valve in the gas circuit gets, give the commutation of gas-liquid change-over valve simultaneously, hydraulic oil enters oil cylinder rodless cavity, realizes the lifting of bolster.When bolster rises to the end position of qualification, be installed in rising on the trip shaft assembly near switch work, promote the electromagnetic valve dead electricity simultaneously, the commutation of gas-liquid change-over valve, system unloaded, bolster stops at the position after the rising.
When the needs bolster descends, the car load braking during standstill, chaufeur is pressed " decline " position of the lifting/lowering master cock that is installed on the bridge operation panel in operator's compartment, decline electromagnetic valve in the gas circuit gets, give the commutation of gas-liquid change-over valve simultaneously, hydraulic oil enters cylinder rod chamber, realizes the decline of bolster.When bolster drops to the end position of qualification, be installed in decline on the trip shaft assembly near switch work, the electromagnetic valve dead electricity that descends simultaneously, the commutation of gas-liquid change-over valve, system unloaded, bolster stops at the position after the decline.
The utility model has following main characteristics:
A. realized the simplification to supporting axle lifting mechanism control, can be by lifting/lowering be controlled in driver's cabin The operation of switch realizes very easily;
B. increased baroswitch in the system, stopped under the state of travelling supporting the maloperation of axle lifting, the guarantor Protected the security that turns to;
C. add the position probing device in the system, the position signal when the detection trip shaft reaches capacity the position, simultaneously Make system unloaded, protected to turn to oil pump;
D. the position probing device adopts approach switch to come the detection position signal, and the accuracy of detection height is easy for installation, makes With reliably;
E. system adopts electricity, gas, liquid coordinated control, has ingeniously utilized the existence conditions on the automobile, makes system performance reliable, and is cheap.
Therefore, the control system of bolster hydraulic lifting mechanism of the present utility model has the principle novelty, and simple in structure, components and parts are few, and are easy and simple to handle, dependable performance, and characteristics such as safety height can be widely used in the various mechanisms that adopt hydraulic pressure lift on automobile.
Claims (2)
1. the control system of a bolster hydraulic lifting mechanism has electric system, pneumatic control system, hydraulic efficiency pressure system, it is characterized in that: the lifting/lowering master cock in the electric system is placed on the control panel in the operator's compartment; Electromagnetic valve is set in the pneumatic control system; The gas-liquid change-over valve is set in hydraulic efficiency pressure system; Thereby the electromagnetic valve in the lifting/lowering master cock control air-channel system makes the gas-liquid change-over valve commutation that is provided with in hydraulic efficiency pressure system change liquid flow path direction in the hydraulic efficiency pressure system, makes bolster direction as required rise or descend.
2. the control system of bolster hydraulic lifting mechanism according to claim 1, it is characterized in that: system also comprises by rising near switch and the position detecting device that descends and form near switch and connecting panel, postive stop baffle, detecting device adopts to be installed on and detects the trip shaft position signal near switch on the connecting panel, connecting panel is fixed on the cylinder bracket, and postive stop baffle is installed on the trip shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520107705 CN2820586Y (en) | 2005-05-27 | 2005-05-27 | Support shaft hydraulic lifting mechanism control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520107705 CN2820586Y (en) | 2005-05-27 | 2005-05-27 | Support shaft hydraulic lifting mechanism control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2820586Y true CN2820586Y (en) | 2006-09-27 |
Family
ID=37017138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520107705 Expired - Lifetime CN2820586Y (en) | 2005-05-27 | 2005-05-27 | Support shaft hydraulic lifting mechanism control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2820586Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343762A (en) * | 2013-07-31 | 2013-10-09 | 中国重汽集团济南动力有限公司 | Power-driven hydraulic control device for lifting support bridge and control method of power-driven hydraulic control device |
-
2005
- 2005-05-27 CN CN 200520107705 patent/CN2820586Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343762A (en) * | 2013-07-31 | 2013-10-09 | 中国重汽集团济南动力有限公司 | Power-driven hydraulic control device for lifting support bridge and control method of power-driven hydraulic control device |
| CN103343762B (en) * | 2013-07-31 | 2015-05-27 | 中国重汽集团济南动力有限公司 | Power-driven hydraulic control device for lifting support bridge and control method of power-driven hydraulic control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150527 Granted publication date: 20060927 |