CN202165340U - Hydraulic double-channel oil way system - Google Patents
Hydraulic double-channel oil way system Download PDFInfo
- Publication number
- CN202165340U CN202165340U CN2011202839018U CN201120283901U CN202165340U CN 202165340 U CN202165340 U CN 202165340U CN 2011202839018 U CN2011202839018 U CN 2011202839018U CN 201120283901 U CN201120283901 U CN 201120283901U CN 202165340 U CN202165340 U CN 202165340U
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- oil
- way
- hydraulic
- opening
- change valve
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Abstract
A hydraulic double-channel oil way system mainly solves the problem that a change valve in an existing hydraulic system can not achieve large flow requirement under the condition that the structural size is not changed. The hydraulic double-channel oil way system comprises a two position four way change valve (1). An oil inlet opening P, an oil return opening T, a working oil opening A and a working oil opening B are arranged on the two position four way change valve (1). The hydraulic double-channel oil way system is characterized in that the oil inlet opening P and the working oil opening A are communicated through a bypass oil way (2), and the oil return opening T and the working oil opening B are communicated also through the bypass oil way (2). The hydraulic double-channel oil way system enlarges flow under the condition that the structural size of an existing change valve is not changed and reduces production cost and maintenance cost of a hydraulic system.
Description
Technical field
The utility model relates to the reversing oil circuit system in the hydraulic system, is specifically related to a kind of Hydraulic Double passage oil-way system.
Background technique
In hydraulic system, generally be to adopt selector valve, owing to receive the restriction of selector valve internal structure as the oil circuit conversion equipment; Hydraulic oil can receive flow restriction when selector valve, during like the big flow of needs, can only adopt the selector valve of big latus rectum; Corresponding selector valve structure is bigger; Boundary dimension also can increase, and cost is high, also causes difficulty and increases maintenance cost for later maintenance.In addition, owing to receive the restriction in space, can not be installed on the conglomerate with other hydraulic element, can only be in pipeline independent installation, it is big to take up room, structure is not compact.
Summary of the invention
Under the situation that does not change physical dimension, can not realize the deficiency of big traffic demand in order to overcome selector valve in the existing hydraulic system; The utility model provides a kind of Hydraulic Double passage oil-way system; This Hydraulic Double passage oil-way system has increased flow under the situation that does not change existing selector valve physical dimension, reduced the cost of production and the maintenance cost of hydraulic system.
The technological scheme of the utility model is: this Hydraulic Double passage oil-way system comprises two-position four way change valve; Two-position four way change valve is provided with oil inlet P, oil return inlet T, actuator port A and actuator port B; Be connected through bleed off circuit between oil inlet P and the actuator port A, also be connected between oil return inlet T and the actuator port B through bleed off circuit.
Described two-position four way change valve adopts plank frame to be installed on the conglomerate, and described bleed off circuit is the inner passage on bypass tube or the conglomerate.
The utlity model has following beneficial effect: owing to take such scheme; When two-position four way change valve commutated to working state, oil inlet P, actuator port A, oil return inlet T, actuator port B were communicated with each other, and hydraulic oil has two kinds of flow directions; The one, from oil inlet P through bleed off circuit, actuator port A, oil return inlet T, another bleed off circuit to actuator port B; The 2nd, directly to actuator port B, the oil circuit area of passage increases from oil inlet P, has increased the flow of oil circuit effectively; Under the situation of the physical dimension that does not change two-position four way change valve, satisfy the traffic demand of hydraulic system, reduced the cost of production and the maintenance cost of hydraulic system.
Description of drawings
Accompanying drawing 1 is the hydraulic schematic diagram of the utility model.
Accompanying drawing 2 is hydraulic schematic diagrams of the utility model working state.
1-two-position four way change valve among the figure, the 2-bleed off circuit.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Combine shown in Figure 2 by Fig. 1; This Hydraulic Double passage oil-way system comprises two-position four way change valve 1; Two-position four way change valve 1 is provided with oil inlet P, oil return inlet T, actuator port A and actuator port B; Be connected through bleed off circuit 2 between oil inlet P and the actuator port A, also be connected between oil return inlet T and the actuator port B through bleed off circuit 2.When two-position four way change valve 1 commutates to working state; Oil inlet P, actuator port A, oil return inlet T, actuator port B are communicated with each other; Hydraulic oil has two kinds of flow directions, the one, from oil inlet P through bleed off circuit 2, actuator port A, oil return inlet T, another bleed off circuit 2 to actuator port B, the 2nd, from oil inlet P directly to actuator port B; The oil circuit area of passage increases; Increase the flow of oil circuit effectively, under the situation of the physical dimension that does not change two-position four way change valve 1, satisfied the traffic demand of hydraulic system, reduced the cost of production and the maintenance cost of hydraulic system.
Described two-position four way change valve 1 adopts plank frame to be installed on the conglomerate, and described bleed off circuit 2 is the inner passage on bypass tube or the conglomerate.As to original hydraulic system transformation, in order to practice thrift cost, bleed off circuit 2 adopts bypass tubes to get final product.For the processing of new product, the design inner passage is better as bleed off circuit 2 on conglomerate, and compact structure reduces rate of fault.
Claims (2)
1. Hydraulic Double passage oil-way system; Comprise two-position four way change valve (1); Two-position four way change valve (1) is provided with oil inlet P, oil return inlet T, actuator port A and actuator port B; It is characterized in that: be connected through bleed off circuit (2) between oil inlet P and the actuator port A, also be connected between oil return inlet T and the actuator port B through bleed off circuit (2).
2. Hydraulic Double passage oil-way system according to claim 1 is characterized in that: described two-position four way change valve (1) adopts plank frame to be installed on the conglomerate, and described bleed off circuit (2) is the inner passage on bypass tube or the conglomerate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202839018U CN202165340U (en) | 2011-08-05 | 2011-08-05 | Hydraulic double-channel oil way system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202839018U CN202165340U (en) | 2011-08-05 | 2011-08-05 | Hydraulic double-channel oil way system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165340U true CN202165340U (en) | 2012-03-14 |
Family
ID=45801168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202839018U Expired - Lifetime CN202165340U (en) | 2011-08-05 | 2011-08-05 | Hydraulic double-channel oil way system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678647A (en) * | 2012-05-31 | 2012-09-19 | 常德中联重科液压有限公司 | Direction control valve |
-
2011
- 2011-08-05 CN CN2011202839018U patent/CN202165340U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678647A (en) * | 2012-05-31 | 2012-09-19 | 常德中联重科液压有限公司 | Direction control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |