CN217207071U - Hydraulic control high-speed cruise system for hydraulic wheel excavation - Google Patents
Hydraulic control high-speed cruise system for hydraulic wheel excavation Download PDFInfo
- Publication number
- CN217207071U CN217207071U CN202122991100.3U CN202122991100U CN217207071U CN 217207071 U CN217207071 U CN 217207071U CN 202122991100 U CN202122991100 U CN 202122991100U CN 217207071 U CN217207071 U CN 217207071U
- Authority
- CN
- China
- Prior art keywords
- valve
- cruise
- gear pump
- engine
- electromagnetic valve
- 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.)
- Active
Links
Images
Landscapes
- Control Of Fluid Gearings (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hydraulic pressure wheel digs high-speed cruise control system of hydraulic control, belong to the hydraulic control field, a hydraulic pressure wheel digs high-speed cruise control system of hydraulic control, which comprises an engine, the variable plunger pump, the ration gear pump, the shuttle valve, the solenoid valve advances, the switching-over valve, walking motor and controller, the engine is connected with the controller, the ration gear pump is connected with the valve of cruising, the valve of cruising is connected with the shuttle valve, the shuttle valve is connected with the solenoid valve that advances, the solenoid valve that advances is connected with the switching-over valve, the variable plunger pump all is connected with the engine and ration gear pump with the engine, the variable plunger pump is connected with the switching-over valve, the switching-over valve is connected with the walking motor, the ration gear pump still is connected with a cruise control spare, cruise control spare is high-speed cruise solenoid valve, high-speed cruise solenoid valve and controller, shuttle valve and ration gear pump are connected. The electric bicycle can reduce the operation difficulty of a user and greatly improve the comfort of a driver.
Description
Technical Field
The utility model relates to a hydraulic control field, more specifically say, relate to a hydraulic pressure wheel digs high-speed cruise control system of hydraulic control.
Background
A wheel excavator is an earth moving machine that excavates material above or below a machine bearing surface with a bucket and loads it into a transport vehicle or unloads it to a stockyard. The excavated materials mainly comprise soil, coal, silt, soil after pre-loosening and rock. The rubber-tyred excavator performs short-distance transition operation through a transmission system and front and rear drive axles, and the transmission system can be divided into mechanical control and full hydraulic control according to a control mode. Compared with a mechanical transmission system, the operation of a full hydraulic control system is more convenient;
the existing hydraulic control system has some defects, such as inconvenience in controlling the whole machine to automatically cruise at high speed, inconvenience in reducing the operation difficulty of an operator, and inconvenience in driving a driver.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a hydraulic pressure wheel digs high-speed cruise system of hydraulic control, and it can reduce user's the operation degree of difficulty, increases substantially driver's comfort level.
2. Technical scheme
In order to solve the problem, the utility model adopts the following technical proposal.
A hydraulic wheel digging hydraulic control high-speed cruise system comprises an engine, a variable plunger pump, a quantitative gear pump, a shuttle valve, an advancing electromagnetic valve, a cruise valve, a reversing valve, a traveling motor and a controller;
the engine is connected with the controller, the quantitative gear pump is connected with the cruise valve, the cruise valve is connected with the shuttle valve, the shuttle valve is connected with the forward electromagnetic valve, the forward electromagnetic valve is connected with the reversing valve, and the variable plunger pump is connected with the engine and the quantitative gear pump is connected with the engine;
the variable plunger pump is connected with the reversing valve, the reversing valve is connected with the walking motor, and the quantitative gear pump is further connected with a cruise control piece.
Further, the cruise control part is a high-speed cruise electromagnetic valve, and the high-speed cruise electromagnetic valve is connected with the controller, the shuttle valve and the quantitative gear pump.
Furthermore, the quantitative gear pump is connected with the engine through a second coupler, and the variable plunger pump is connected with the engine through a first coupler.
Furthermore, a first safety valve is connected to the variable plunger pump, and a second safety valve is connected to the quantitative gear pump.
Furthermore, a retreating electromagnetic valve is connected to the shuttle valve and the high-speed cruise electromagnetic valve, and the retreating electromagnetic valve is connected to the reversing valve.
Furthermore, the variable plunger pump, the quantitative gear pump, the first safety valve, the second safety valve, the cruise valve, the high-speed cruise electromagnetic valve, the forward electromagnetic valve, the backward electromagnetic valve and the reversing valve are all connected with oil tanks.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) the hydraulic system is controlled, the whole machine can be controlled to automatically cruise at high speed, the operation intensity of a user is further reduced, and the comfort level of a driver is greatly improved.
Drawings
Fig. 1 is a diagram of the hydraulic control system of the present invention.
The reference numbers in the figures illustrate:
1. an engine; 2. a variable displacement plunger pump; 3. a quantitative gear pump; 4. a first safety valve; 5. a second relief valve; 6. a cruise valve; 7. a shuttle valve; 8. a high-speed cruise solenoid valve; 9. a forward solenoid valve; 10. a backward electromagnetic valve; 11. a diverter valve; 12. a travel motor; 13. an oil tank; 14. A controller; 15. a first coupling; 16. a second coupling.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Example 1:
referring to fig. 1, a hydraulic control high-speed cruise system of a hydraulic excavator comprises an engine 1, a variable plunger pump 2, a fixed-displacement gear pump 3, a shuttle valve 7, a forward solenoid valve 9, a cruise valve 6, a reversing valve 11, a traveling motor 12 and a controller 14;
the engine 1 is connected with the controller 14, the quantitative gear pump 3 is connected with the cruise valve 6, the cruise valve 6 is connected with the shuttle valve 7, the shuttle valve 7 is connected with the forward electromagnetic valve 9, the forward electromagnetic valve 9 is connected with the reversing valve 11, and the variable plunger pump 2 is connected with the engine 1 and the quantitative gear pump 3 is connected with the engine 1;
the variable plunger pump 2 is connected with a reversing valve 11, the reversing valve 11 is connected with a walking motor 12, and the quantitative gear pump 3 is also connected with a cruise control piece.
The cruise control part is a high-speed cruise electromagnetic valve 8, and the high-speed cruise electromagnetic valve 8 is connected with the controller 14, the shuttle valve 7 and the quantitative gear pump 3, so that the whole machine can carry out automatic high-speed cruise, and the operation comfort level of a driver is improved.
The quantitative gear pump 3 is connected with the engine 1 through a second coupler 16, and the variable plunger pump 2 is connected with the engine 1 through a first coupler 15, so that the variable plunger pump 2 and the quantitative gear pump 3 can control whether the engine 1 is started or not through the first coupler 15 and the second coupler 16 respectively.
Still be connected with first relief valve 4 on the variable plunger pump 2, still be connected with second relief valve 5 on the ration gear pump 3 for first relief valve 4 and second relief valve 5 protect variable plunger pump 2 and ration gear pump 3 respectively.
The shuttle valve 7 and the high-speed cruise electromagnetic valve 8 are also connected with a backward electromagnetic valve 10, and the backward electromagnetic valve 10 is connected with a reversing valve 11, so that the shuttle valve 7 and the high-speed cruise electromagnetic valve 8 can also control the backward electromagnetic valve 10, and the overall backward movement and the reverse movement are controlled by the backward electromagnetic valve 10.
The variable plunger pump 2, the fixed-displacement gear pump 3, the first safety valve 4, the second safety valve 5, the cruise valve 6, the high-speed cruise electromagnetic valve 8, the forward electromagnetic valve 9, the backward electromagnetic valve 10 and the reversing valve 11 are all connected with an oil tank 13, so that the variable plunger pump 2, the fixed-displacement gear pump 3, the first safety valve 4, the second safety valve 5, the cruise valve 6, the high-speed cruise electromagnetic valve 8, the forward electromagnetic valve 9, the backward electromagnetic valve 10 and the reversing valve 11 can all control oil to enter and exit at any time.
The working process comprises the following steps: when the device is started, the forward electromagnetic valve 9 is electrified, and the right computer can be connected to ｃA system and ｃA P-A passage; the opening position of the cruise valve 6 and the P-A passage are manually controlled; the first safety valve 4 collects a pressure signal at the position A and outputs a corresponding electric signal B to control the rotating speed of the engine 1; the quantitative gear pump 3 outputs flow, the flow passes through the cruise valve 6, the shuttle valve 7 and the advancing electromagnetic valve 9 to the lower port of the reversing valve 11, the lower position machine of the engine 1 can be connected into the system, meanwhile, the flow output by the variable plunger pump 2 enters the lower port of the walking motor 12 through the reversing valve 11, the walking motor 12 rotates clockwise, and the transmission system drives the whole machine to advance;
the oil at the upper port of the traveling motor 12 returns to the oil tank 13 through the reversing valve 11. And controlling the cruise valve 6 and the P-A passage to be at the full-open position. The controller 14 collects the highest pressure signal at the position A, outputs the highest electric signal B to control the engine 1 to the highest rotating speed, the variable plunger pump 2 outputs the maximum flow to the lower port of the traveling motor 12, and the whole machine moves forward at a high speed. The closing position of the manual control cruise valve 6 is closed, P-A is disconnected, no pressure signal is arranged at the position A, the engine 1 is in the lowest speed state, the middle position function of the reversing valve 11 can be connected into the system, the minimum flow output by the variable plunger pump 2 is returned to the oil tank 13 through the reversing valve 11, and the walking motor 12 stops working. The whole machine stops operating.
The forward electromagnetic valve 9 is electrified, and the right computer can be connected to ｃA system and ｃA P-A passage; the opening position of the cruise valve 6 and the P-A passage are manually controlled; the controller 14 inputs a high-speed cruising signal and a highest pressure signal at the position A, the controller 14 outputs an electric signal C, the high-speed cruising electromagnetic valve 8 is electrified, and the left position machine of the high-speed cruising electromagnetic valve can be connected to a system. ｃA P-A passage, and meanwhile, the closing position of the cruise valve 6 is manually controlled, and the P-A is disconnected;
the output flow of the quantitative gear pump 3 is transmitted to the lower port of a reversing valve 11 through a high-speed cruise electromagnetic valve 8, a shuttle valve 7 and a forward electromagnetic valve 9, the lower port of the reversing valve 11 can be connected into the system, meanwhile, the output flow of the variable plunger pump 2 is transmitted to the lower port of a walking motor 12 through the reversing valve 11, the walking motor 12 rotates clockwise, and the transmission system drives the whole machine to move forward;
the oil at the upper port of the traveling motor 12 returns to the oil tank 13 through the reversing valve 11. The high-speed cruising electromagnetic valve 8 is electrified, the left machine of the high-speed cruising electromagnetic valve can be connected to ｃA system and ｃA P-A passage, the controller 14 continuously collects the highest pressure signal at the position A, outputs the maximum electric signal B to control the engine 1 to the highest rotating speed, the variable plunger pump 2 outputs the maximum flow to the lower port of the walking motor 12, and the whole machine does the high-speed cruising advancing action;
when the controller 14 inputs ｃA braking signal or releases the input of the high-speed cruising signal, the high-speed cruising electromagnetic valve 8 is de-energized, the right computer of the high-speed cruising electromagnetic valve can be connected to the system, and the P-A circuit is disconnected. The pressure signal at the position A is gradually reduced to no signal, the rotating speed of the engine 1 is gradually reduced to an idling state, and the bit function of the reversing valve 11 can be connected to the system. The output flow of the variable plunger pump 2 returns to the oil tank 13 through the reversing valve 11, the walking motor 12 stops working, and the whole machine stops working.
The foregoing is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.
Claims (6)
1. A hydraulic control high-speed cruise system of a hydraulic excavator comprises an engine (1), a variable plunger pump (2), a quantitative gear pump (3), a shuttle valve (7), an advancing electromagnetic valve (9), a cruise valve (6), a reversing valve (11), a traveling motor (12) and a controller (14);
the method is characterized in that: the engine (1) is connected with the controller (14), the quantitative gear pump (3) is connected with the cruise valve (6), the cruise valve (6) is connected with the shuttle valve (7), the shuttle valve (7) is connected with the forward electromagnetic valve (9), the forward electromagnetic valve (9) is connected with the reversing valve (11), the variable plunger pump (2) is connected with the engine (1), and the quantitative gear pump (3) is connected with the engine (1);
the variable plunger pump (2) is connected with the reversing valve (11), the reversing valve (11) is connected with the walking motor (12), and the quantitative gear pump (3) is further connected with a cruise control piece.
2. The hydraulic excavation hydraulic control high-speed cruise system of claim 1, wherein: the cruise control part is a high-speed cruise electromagnetic valve (8), and the high-speed cruise electromagnetic valve (8) is connected with the controller (14), the shuttle valve (7) and the quantitative gear pump (3).
3. The hydraulic excavation hydraulic control high-speed cruise system of claim 1, wherein: the quantitative gear pump (3) is connected with the engine (1) through a second coupler (16), and the variable plunger pump (2) is connected with the engine (1) through a first coupler (15).
4. The hydraulic wheel excavation hydraulic control high-speed cruise system according to claim 2, wherein: the variable plunger pump (2) is further connected with a first safety valve (4), and the quantitative gear pump (3) is further connected with a second safety valve (5).
5. The hydraulic excavation hydraulic control high-speed cruise system of claim 4, wherein: the shuttle valve (7) and the high-speed cruise electromagnetic valve (8) are further connected with a backward electromagnetic valve (10), and the backward electromagnetic valve (10) is connected with the reversing valve (11).
6. The hydraulic wheel excavation hydraulic control high-speed cruise system according to claim 5, wherein: the variable plunger pump (2), the quantitative gear pump (3), the first safety valve (4), the second safety valve (5), the cruise valve (6), the high-speed cruise electromagnetic valve (8), the forward electromagnetic valve (9), the backward electromagnetic valve (10) and the reversing valve (11) are all connected with an oil tank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991100.3U CN217207071U (en) | 2021-12-01 | 2021-12-01 | Hydraulic control high-speed cruise system for hydraulic wheel excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991100.3U CN217207071U (en) | 2021-12-01 | 2021-12-01 | Hydraulic control high-speed cruise system for hydraulic wheel excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217207071U true CN217207071U (en) | 2022-08-16 |
Family
ID=82783280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122991100.3U Active CN217207071U (en) | 2021-12-01 | 2021-12-01 | Hydraulic control high-speed cruise system for hydraulic wheel excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217207071U (en) |
-
2021
- 2021-12-01 CN CN202122991100.3U patent/CN217207071U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102803686B (en) | The controlling method of Working vehicle and Working vehicle | |
| JP5513395B2 (en) | Combiner valve control system and method | |
| CN103562564B (en) | The fluid pressure drive device of Work machine | |
| CN106460889B (en) | Work machine | |
| EP2652212B1 (en) | Closed loop drive circuit with open circuit pump assist for high speed travel | |
| CN102985306B (en) | Operation vehicle and control method therefor | |
| US9394924B2 (en) | Hydrostatic system configured to be integrated in an excavator | |
| CN103109094A (en) | Multi-function wheel loader linkage control with optimized power management | |
| KR20120093195A (en) | Construction machinery | |
| CN102741483A (en) | Hydraulic work machine | |
| CN103975110A (en) | Wheel loader | |
| KR20090092265A (en) | Steering system for working vehicle | |
| US20140069092A1 (en) | Traction Control System for a Hydrostatic Drive | |
| CN104583610B (en) | Hydraulic control system having swing motor energy recovery | |
| CN217207071U (en) | Hydraulic control high-speed cruise system for hydraulic wheel excavation | |
| US20070044464A1 (en) | Combiner valve control system and method | |
| CN109072954A (en) | Working truck | |
| CN2435431Y (en) | Multi-purpose hydraulic bulldozer | |
| CN111356808B (en) | Drive system for a construction machine and method for controlling the drive system | |
| CN217207072U (en) | Speed-increasing and loss-reducing structure for hydraulic wheel digging hydraulic control cruise function | |
| CN114277878A (en) | Adaptation system and method for forward control and rotation angle of crawler excavator | |
| JP4425804B2 (en) | Rotor excavation work vehicle and rotor excavation control method | |
| CN212866090U (en) | Modular full-hydraulic high-speed loader | |
| JPH023535A (en) | Running hydraulic circuit for construction machine | |
| JPS632522Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |