CN201144904Y - Star wheel synchronous hydraulic system for development machine - Google Patents
Star wheel synchronous hydraulic system for development machine Download PDFInfo
- Publication number
- CN201144904Y CN201144904Y CN 200720185082 CN200720185082U CN201144904Y CN 201144904 Y CN201144904 Y CN 201144904Y CN 200720185082 CN200720185082 CN 200720185082 CN 200720185082 U CN200720185082 U CN 200720185082U CN 201144904 Y CN201144904 Y CN 201144904Y
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- valve
- pressure
- star
- hydraulic system
- star wheel
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- Expired - Fee Related
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Abstract
The utility model provides a star wheel synchronous hydraulic system used for a development machine. The star wheel synchronous hydraulic system is characterized in that a constant power load sensitive axial plunger piston variable pump capable of cutting the pressure is connected with a six-way ratio multichannel reversing valve capable of compensating the pressure and sensing the load, the inside of the six-way ratio multichannel reversing valve is provided with two plate valves which are respectively connected with and control two star wheel hydraulic motors, a pressure compensating valve is respectively connected with each plate valve oil inlet pipeline for adjusting flow values of the two plate valves, the two hydraulic motors are driven to rotate synchronously, and a leading control opening of the ratio multichannel valve is connected with a manual ratio leading valve. The design has the characteristics that the configuration of the pipeline is simple, and the split-flow error is controllable not influenced by the change of load.
Description
Technical field
The utility model belongs to a kind of synchronous hydraulic system of assurance star-wheel that is applied on the development machine.
Background technique
Star-wheel mechanism on the development machine is that material is shipped to device on the transport airplane of next stage, therefore the synchronous reliability to development machine work of two star wheel rotate speeds has significant effects, it is synchronous that domestic existing star-wheel synchronization hydraulic system for tunneling machine adopts shunt or diverter valve to guarantee to connect star-wheel mostly, these two kinds of methods all exist the pipeline configuration to make mistakes easily, streaming error is difficult for adjusting the shortcoming that reliability is not high.
Summary of the invention
This novel purpose provides a kind of star-wheel synchronization hydraulic system for tunneling machine, and it is simple to have a pipeline configuration, the controlled and characteristics that not influenced by load variations of streaming error.
A kind of star-wheel synchronization hydraulic system for tunneling machine, it is characterized in that the responsive shaft orientation plunger variable pump of constant power load that has the pressure cut off function connects with six logical type proportional multi-path reversing valves with pressure compensation and load sensing function, two plate valves are set in the six logical type proportional multi-path reversing valves to be connected respectively and controls two star-wheel oil hydraulic motors, and there is pressure-compensated valve to be connected to separately on the plate valve in-line, be used for adjusting the flow value of two plate valves, make two oil hydraulic motor synchronization, the pilot control opening of proportional multi-path valve links to each other with manual proportional pilot valve.
The pressure oil of guide's handle is the low pressure oil that proportional multi-path reversing valve provides, and the control mouth of guide's handle is connected with the pilot control opening of proportional multi-path reversing valve.Guide's handle connects by driver's direct control and in six logical proportional multi-path reversing valves, the driver can be according to adjusting direction and the flow size that handle changes multi-way valve, six logical type proportional multi-path reversing valves pass to coupled power ecad plunger variable pump to flow and pressure demand signal simultaneously, the variable displacement pump real-time variable, to guarantee that adjusted discharge capacity just in time satisfies the demand of load, does not have power dissipation.Two oil hydraulic motors directly drive star-wheel mechanism, in order to guarantee the run-in synchronism of two star-wheels, in six logical type proportional multi-path reversing valves, add two pressure-compensated valves, so just can carry out pressure compensation automatically, the distribution of dependable flow and load difference are irrelevant, thereby guarantee the run-in synchronism of two star-wheels.
This star-wheel synchronization hydraulic system is compared with the star-wheel synchro system that development machine extensively adopts at present, have superior power adaptive functions, the power output of pump is directly determined by the star-wheel loading demand, there is not power dissipation, improved the reliability of system when saving the energy, the proportion pilot handle makes driver's operation more comfortable, and safety is moved also more accurate.Be applied on the development machine, it is comfortable to make development machine have an operation, and control is precisely saved the energy, and outputting power is powerful, reduces oil liquid temperature, characteristics such as reliability height.
Description of drawings
Fig. 1 is that the star-wheel synchronization hydraulic system parts are provided with schematic representation;
Embodiment
The star-wheel synchronization hydraulic system of the development machine that this is novel, comprise pump and pump stroking mechanism, multiple directional control valve and oil hydraulic motor, see Fig. 1, it is characterized in that having the S mouth of the responsive shaft orientation plunger variable pump 2 of constant power load of pressure cut off function, oil return inlet T 1 connects with fuel tank 1 by pipeline, the pump stroking mechanism 3 of pump 2 itself directly by pipeline X1 with have pressure compensation and be connected with the six Ls mouths that lead to type proportional multi-path reversing valves 4 of load sensing function, the leakage hydraulic fluid port Y mouth of six logical proportional multi-path reversing valves 4 connects by pipeline and fuel tank 1, the oil inlet P 1 of six logical type proportional multi-path reversing valves 4 is connected by pipeline with the A mouth of variable displacement pump 2, each plate valve in the six logical type proportional multi-path reversing valves 4 connects respectively and controls each star-wheel actuator oil hydraulic motor 5, in each plate valve of six logical type proportional multi-path reversing valves 4, pressure-compensated valve 6 is set respectively also, be used for adjusting the flow value of each plate valve, the pilot control opening of six logical type proportional multi-path reversing valves 4 links to each other with manual proportional pilot valve 7.The X2 mouth of six logical type proportional multi-path reversing valve 4 one ends links to each other with oil inlet P 2 pipelines of proportion pilot handle 7, the liquid outlet a7b7 of guide's handle 7, and a8b8 is connected with pipeline with the hydraulic control mouth a7 ' b7 ' a8 ' b8 ' of six logical type proportional multi-path reversing valves 4.The A1 B1 A2 B2 mouth of six logical type proportional multi-path reversing valves 4 is linked to each other by pipeline with the oil hydraulic motor 5 of needs control respectively, all the other oil return inlet T 2, and T3 all communicates with fuel tank 1 pipeline.The pressure compensation value that each actuator's oil hydraulic motor 5 loop needs can realize by adjusting pressure-compensated valve 6 with the size of flow, and the deviation that can regulate rotating speed according to the setting value of the runnability adjustment pressure-compensated valve 6 at scene.
Claims (1)
1, a kind of star-wheel synchronization hydraulic system for tunneling machine, it is characterized in that the responsive shaft orientation plunger variable pump of constant power load that has the pressure cut off function connects with six logical type proportional multi-path reversing valves with pressure compensation and load sensing function, two plate valves connect respectively and control two star-wheel oil hydraulic motors in the six logical type proportional multi-path reversing valves, each plate valve is set in six logical type proportional multi-path reversing valves to be connected respectively and controls each actuator, and there is pressure-compensated valve to be connected to separately on the plate valve in-line, make the synchronous of two oil hydraulic motor rotating speeds, the pilot control opening of proportional multi-path valve links to each other with manual proportional pilot valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720185082 CN201144904Y (en) | 2007-12-21 | 2007-12-21 | Star wheel synchronous hydraulic system for development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720185082 CN201144904Y (en) | 2007-12-21 | 2007-12-21 | Star wheel synchronous hydraulic system for development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144904Y true CN201144904Y (en) | 2008-11-05 |
Family
ID=40081781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720185082 Expired - Fee Related CN201144904Y (en) | 2007-12-21 | 2007-12-21 | Star wheel synchronous hydraulic system for development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144904Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734698A (en) * | 2020-07-03 | 2020-10-02 | 中国矿业大学 | Shunt motor speed change synchronization system capable of resisting time-varying large unbalance load and working method |
-
2007
- 2007-12-21 CN CN 200720185082 patent/CN201144904Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734698A (en) * | 2020-07-03 | 2020-10-02 | 中国矿业大学 | Shunt motor speed change synchronization system capable of resisting time-varying large unbalance load and working method |
| CN111734698B (en) * | 2020-07-03 | 2022-04-08 | 中国矿业大学 | Shunt motor speed change synchronization system capable of resisting time-varying large unbalance load and working method |
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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 |
Granted publication date: 20081105 Termination date: 20141221 |
|
| EXPY | Termination of patent right or utility model |