CN217950836U - Central rotary valve group assembly - Google Patents
Central rotary valve group assembly Download PDFInfo
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- CN217950836U CN217950836U CN202221568411.7U CN202221568411U CN217950836U CN 217950836 U CN217950836 U CN 217950836U CN 202221568411 U CN202221568411 U CN 202221568411U CN 217950836 U CN217950836 U CN 217950836U
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Abstract
The utility model provides a central rotary valve group assembly, it includes the valves body, and the valves body includes working oil circuit, mends oily oil circuit and motor brake cylinder oil feed line. The central rotary motor can rotate forwards or reversely at uniform speed by arranging a working oil way consisting of a first high-pressure side oil interface, a second high-pressure side oil interface, a first actuating mechanism interface, a second actuating mechanism interface, a first balance valve, a second balance valve, a first one-way valve and a second one-way valve; an oil supplementing oil path consisting of an oil supplementing connector, a third check valve and a fourth check valve is arranged, so that the condition that the operation of the central rotary motor is unstable due to unstable hydraulic pressure in a valve bank caused by oil consumption is avoided; the motor brake cylinder oil inlet path composed of the shuttle valve, the pressure reducing valve and the motor brake oil inlet connector is arranged, so that the central rotary motor can brake at any time, and the motor brake cylinder is ensured to be in a real-time opening state.
Description
Technical Field
The utility model relates to a valves technical field, in particular to central authorities' gyration valves assembly.
Background
Current central swing motors are typically controlled in forward or reverse rotation by a valve pack in the hydraulic system.
However, in the valve bank of the hydraulic system in the prior art, in the process of controlling the central rotary motor, the conditions of uneven forward rotation or reverse rotation speed often occur, and the central rotary motor consumes oil to cause unstable hydraulic pressure in the valve bank, thereby further causing unstable operation of the central rotary motor.
SUMMERY OF THE UTILITY MODEL
To the problem pointed out in the background art, the utility model provides a central rotary valve group assembly.
A central rotary valve group assembly comprises a valve group body, wherein the valve group body comprises a working oil way, an oil supplementing oil way and a motor brake cylinder oil inlet way; the working oil way comprises a first high-pressure side oil interface, a second high-pressure side oil interface, a first actuating mechanism interface, a second actuating mechanism interface, a first balance valve, a second balance valve, a first check valve and a second check valve; the working oil way comprises a forward rotation oil way and a reverse rotation oil way; the first high-pressure side oil port, the first one-way valve, the first actuating mechanism port, the second balance valve and the second high-pressure side oil port sequentially flow to form the forward rotation oil path; the second high-pressure side oil port, the second one-way valve, the second actuating mechanism port, the first balance valve and the first high-pressure side oil port sequentially communicate to form the reverse oil way.
According to an embodiment of the present invention, in the forward rotation oil path, a first damping hole is connected between the first high-pressure side oil port and the second balance valve; in the reverse oil passage, a second orifice is connected between the second high-pressure side oil port and the first balance valve.
According to an embodiment of the present invention, the oil supply circuit includes an oil supply port, a third check valve, and a fourth check valve; the third one-way valve is connected between the oil supplementing interface and the first actuating mechanism interface; and the fourth one-way valve is connected between the oil supplementing interface and the second actuating mechanism interface.
According to the utility model discloses an embodiment, be connected with first overflow valve between first actuating mechanism interface and the fourth check valve; and a second overflow valve is connected between the second actuating mechanism interface and the third one-way valve.
According to an embodiment of the present invention, the motor brake cylinder oil inlet path includes a shuttle valve, a pressure reducing valve and a motor brake oil inlet interface; the first high-pressure side oil port, the second high-pressure side oil port and the pressure reducing valve are respectively connected with three connectors of the shuttle valve, and the pressure reducing valve is connected with the motor braking oil inlet port.
According to the utility model discloses an embodiment, the relief pressure valve is connected with the pressure detection interface.
To sum up, the beneficial effects of the utility model are that:
1. the central rotary motor can rotate forwards at a uniform speed or reversely at a uniform speed by arranging the first high-pressure side oil interface, the second high-pressure side oil interface, the first actuating mechanism interface, the second actuating mechanism interface, the first balance valve, the second balance valve, the first one-way valve and the second one-way valve;
2. an oil supplementing oil path consisting of an oil supplementing connector, a third check valve and a fourth check valve is arranged, so that the condition that the operation of the central rotary motor is unstable due to unstable hydraulic pressure in a valve bank caused by oil consumption is avoided;
3. the motor brake cylinder oil inlet path composed of the shuttle valve, the pressure reducing valve and the motor brake oil inlet connector is arranged, high-pressure side oil is reduced in pressure to form low-pressure oil and enters the motor brake cylinder from the motor brake oil inlet connector, and when the high-pressure side oil outside the motor brake cylinder stops flowing, the low-pressure oil inside the motor brake cylinder flows outwards, so that the central rotary motor can brake at any time, and the motor brake cylinder is guaranteed to be in a real-time opening state.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a simplified diagram of the structural connection of the embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals are as follows: 1. a first high pressure side oil port; 2. a second high pressure side oil port; 3. a first actuator interface; 4. a second actuator interface; 5. a first counter-balance valve; 6. a second balancing valve; 7. a first check valve; 8. a second check valve; 9. a first orifice; 10. a second orifice; 11. an oil supplementing interface; 12. a third check valve; 13. a fourth check valve; 14. a first overflow valve; 15. a second overflow valve; 16. a shuttle valve; 17. a pressure reducing valve; 18. the motor brakes the oil inlet interface; 19. a pressure detection interface.
Detailed Description
Please refer to fig. 1 and fig. 2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical changes.
A central rotary valve group assembly comprises a valve group body, wherein the valve group body comprises a working oil way, an oil supplementing oil way and a motor brake cylinder oil inlet way, and the working oil way comprises a forward rotation oil way and a reverse rotation oil way. The forward rotation oil circuit is used for forward rotation work of the central rotary motor; the reverse oil way is used for reverse operation of the central rotary motor; the oil supplementing oil way is used for supplementing hydraulic oil of the working oil way; the motor brake cylinder oil inlet circuit is used for flowing low-pressure oil into the interior of the motor brake cylinder so as to ensure that the motor brake cylinder is in a real-time opening state.
The working oil circuit comprises a first high-pressure side oil connector 1, a second high-pressure side oil connector 2, a first actuating mechanism connector 3, a second actuating mechanism connector 4, a first balance valve 5, a second balance valve 6, a first check valve 7 and a second check valve 8.
The first balance valve 5 has three connection ports, which are a1 connection port, a2 connection port, and a3 connection port, respectively. A first check valve 7 is connected between the a1 connection port and the a2 connection port of the first balance valve 5.
The second balance valve 6 has three connection ports, which are a b1 connection port, a b2 connection port, and a b3 connection port, respectively. A second check valve 8 is connected between the b1 connection port and the b2 connection port of the second balance valve 6.
In the forward rotation oil passage, the first high-pressure side oil port 1, the first check valve 7, the first actuator port 3, the second actuator port 4, the b1 connection port of the second balance valve 6, the b2 connection port of the second balance valve 6, and the second high-pressure side oil port 2 sequentially flow to form the forward rotation oil passage. Further, a first orifice 9 is connected between the first high-pressure side oil connection port 1 and the b3 connection port of the second balance valve 6. The damping of the first damping orifice 9 is 0.6mm. The first balance valve 5 can enable the hydraulic system to be supplied with oil at a constant speed, and stall is prevented.
Therefore, when the central rotary motor rotates in the normal direction, the high-pressure side oil acts on the central rotary motor through the first high-pressure side oil port 1, the first check valve 7, and the first actuator port 3, and then flows back through the second actuator port 4, the b1 connection port of the second balance valve 6, the b2 connection port of the second balance valve 6, and the second high-pressure side oil port 2.
In the reverse oil passage, the second high-pressure side oil port 2, the second check valve 8, the second actuator port 4, the first actuator port 3, the a1 connection port of the first balance valve 5, the a2 connection port of the first balance valve 5, and the first high-pressure side oil port 1 sequentially flow to form a reverse oil passage. Further, a second orifice 10 is connected between the second high-pressure side oil connection port 2 and the a3 connection port of the first balance valve 5. The damping of the second damping orifice 10 is 0.6mm. The second balance valve 6 can enable the hydraulic system to be supplied with oil at a constant speed, and stall is prevented.
The oil supplementing oil path comprises an oil supplementing connector 11, a third check valve 12 and a fourth check valve 13. Specifically, a third check valve 12 is connected between the oil supplementing port 11 and the first actuator port 3; a fourth check valve 13 is connected between the oil supply port 11 and the second actuator port 4. The oil supplementing interface 11 is connected to an external oil supplementing hydraulic system.
Generally, oil consumption occurs in the central rotary motor, so that when the central rotary motor rotates forwards, the hydraulic pressure of the second actuator interface 4 is smaller than that of the first actuator interface 3; when the central pivot motor rotates in the reverse direction, the hydraulic pressure at the first actuator port 3 will be lower than the hydraulic pressure at the second actuator port 4. The autonomous selective oil replenishment is performed through the third check valve 12 and the fourth check valve 13.
Further, a first overflow valve 14 is connected between the first actuator port 3 and the fourth check valve 13; a second overflow valve 15 is connected between the second actuator port 4 and the third check valve 12. The first overflow valve 14 and the second overflow valve 15 can prevent the hydraulic pressure of an external oil supplementing hydraulic system from being too high, and play a role in protecting the valve bank.
The motor brake cylinder oil inlet path comprises a shuttle valve 16, a pressure reducing valve 17 and a motor brake oil inlet interface 18.
The shuttle valve 16 has three connection ports, i.e., a c1 connection port, a c2 connection port, and a c3 connection port.
The pressure reducing valve 17 has three connection ports, which are a d1 connection port, a d2 connection port, and a d3 connection port.
The first high-pressure side oil port 1, the second high-pressure side oil port 2 and the d2 connecting port of the pressure reducing valve 17 are respectively connected with the c3 connecting port, the c1 connecting port and the c2 connecting port of the shuttle valve 16, and the d1 connecting port of the pressure reducing valve 17 is connected with the motor brake oil inlet port 18. Further, a pressure detection port 19 is connected to a d3 connection port of the pressure reducing valve 17.
Therefore, under the action of the oil inlet path of the motor brake cylinder, the high-pressure side oil is decompressed into low-pressure oil and enters the motor brake cylinder from the motor brake oil inlet port 18, the low-pressure oil flows inside the motor brake cylinder, and when the high-pressure side oil outside the motor brake cylinder stops flowing, the low-pressure oil inside the motor brake cylinder flows outwards, so that the central rotary motor can brake at any time, and the motor brake cylinder is ensured to be in a real-time opening state.
In this embodiment, structures such as "a first high-pressure side oil port 1, a second high-pressure side oil port 2, a first actuator port 3, a second actuator port 4, a first balance valve 5, a second balance valve 6, a first check valve 7, a second check valve 8, a first orifice 9, a second orifice 10, an oil replenishment port 11, a third check valve 12, a fourth check valve 13, a first overflow valve 14, a second overflow valve 15, a shuttle valve 16, a pressure reducing valve 17, a motor brake oil inlet port 18, and a pressure detection port 19" are integrated in an integrated block according to the structural connection relationship in fig. 1, as shown in fig. 2.
In summary, in the present embodiment, by providing the first high-pressure side oil port 1, the second high-pressure side oil port 2, the first actuator port 3, the second actuator port 4, the first balance valve 5, the second balance valve 6, the first check valve 7, and the second check valve 8, the central rotary motor can perform uniform-speed forward rotation or uniform-speed reverse rotation; an oil supplementing oil path consisting of an oil supplementing connector 11, a third check valve 12 and a fourth check valve 13 is arranged, so that the condition that the operation of a central rotary motor is unstable due to unstable hydraulic pressure in a valve bank caused by oil consumption is avoided; the motor brake cylinder oil inlet path composed of the shuttle valve 16, the pressure reducing valve 17 and the motor brake oil inlet interface 18 is arranged, high-pressure side oil is reduced in pressure to low-pressure oil and enters the motor brake cylinder from the motor brake oil inlet interface 18, and when the high-pressure side oil outside the motor brake cylinder stops flowing, the low-pressure oil inside the motor brake cylinder flows outwards, so that the central rotary motor can brake at any time, and the motor brake cylinder is ensured to be in a real-time opening state.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A central rotary valve group assembly comprises a valve group body and is characterized in that,
the valve group body comprises a working oil way, an oil supplementing oil way and a motor brake cylinder oil inlet way;
the working oil way comprises a first high-pressure side oil interface (1), a second high-pressure side oil interface (2), a first actuating mechanism interface (3), a second actuating mechanism interface (4), a first balance valve (5), a second balance valve (6), a first one-way valve (7) and a second one-way valve (8);
the working oil way comprises a forward rotation oil way and a reverse rotation oil way;
the first high-pressure side oil port (1), the first one-way valve (7), the first actuating mechanism port (3), the second actuating mechanism port (4), the second balance valve (6) and the second high-pressure side oil port (2) sequentially circulate to form the forward rotation oil path;
the second high-pressure side oil port (2), the second one-way valve (8), the second actuating mechanism port (4), the first actuating mechanism port (3), the first balance valve (5) and the first high-pressure side oil port (1) sequentially circulate to form the reverse oil way.
2. A centre rotary valve group assembly according to claim 1, wherein in the positive rotation oil circuit, a first damping hole (9) is connected between the first high pressure side oil port (1) and the second balancing valve (6); in the reverse oil path, a second orifice (10) is connected between the second high-pressure side oil port (2) and the first balance valve (5).
3. A centre rotary valve group assembly according to claim 1, wherein the oil supply circuit comprises an oil supply port (11), a third check valve (12) and a fourth check valve (13);
the third one-way valve (12) is connected between the oil supplementing interface (11) and the first actuating mechanism interface (3);
and a fourth one-way valve (13) is connected between the oil supplementing interface (11) and the second actuating mechanism interface (4).
4. A centre swing valve group assembly according to claim 3, wherein a first overflow valve (14) is connected between the first actuator port (3) and the fourth check valve (13);
and a second overflow valve (15) is connected between the second actuating mechanism interface (4) and the third one-way valve (12).
5. A center rotary valve manifold assembly as claimed in claim 1 wherein the motor brake cylinder inlet line comprises a shuttle valve (16), a pressure reducing valve (17) and a motor brake inlet port (18);
the first high-pressure side oil port (1), the second high-pressure side oil port (2) and the reducing valve (17) are respectively connected with three connecting ports of the shuttle valve (16), and the reducing valve (17) is connected with the motor braking oil inlet port (18).
6. A centre turn valve assembly according to claim 5, characterised in that the pressure reducing valve (17) is connected with a pressure sensing connection (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221568411.7U CN217950836U (en) | 2022-06-22 | 2022-06-22 | Central rotary valve group assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221568411.7U CN217950836U (en) | 2022-06-22 | 2022-06-22 | Central rotary valve group assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217950836U true CN217950836U (en) | 2022-12-02 |
Family
ID=84218271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221568411.7U Active CN217950836U (en) | 2022-06-22 | 2022-06-22 | Central rotary valve group assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217950836U (en) |
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2022
- 2022-06-22 CN CN202221568411.7U patent/CN217950836U/en active Active
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