CN217976875U - Hydraulic control system of spiral pipe jacking machine for underground pipe network construction - Google Patents
Hydraulic control system of spiral pipe jacking machine for underground pipe network construction Download PDFInfo
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- CN217976875U CN217976875U CN202221986475.9U CN202221986475U CN217976875U CN 217976875 U CN217976875 U CN 217976875U CN 202221986475 U CN202221986475 U CN 202221986475U CN 217976875 U CN217976875 U CN 217976875U
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Abstract
The utility model discloses a hydraulic control system of an underground pipe network construction spiral pipe jacking machine, which relates to the field of hydraulic equipment and comprises an oil tank, wherein the side surface of the oil tank is respectively provided with a first pump source assembly and a second pump source assembly, the first pump source assembly and the second pump source assembly work independently, and the first pump source assembly and the second pump source assembly are respectively and independently controlled through a second control valve group and a first control valve group; two groups of independent pump source assemblies are arranged, so that simultaneous work or independent work can be realized, the control is flexible, and the working efficiency is improved; the flow control valve group ensures that the speed of the hydraulic oil cylinder is controllable when the hydraulic oil cylinder extends out in an actual working condition, so that the working efficiency is improved; the load control valve group realizes the stable action of the hydraulic motor, reduces hydraulic impact and improves the safety of the system; each valve group is connected with the executing element through a hydraulic quick connector, so that the disassembly and the assembly are convenient, the problem of leakage of hydraulic oil caused by repeated disassembly and assembly of the oil pipe is solved, and the environmental pollution is reduced.
Description
Technical Field
The utility model relates to a hydraulic equipment field specifically is a hydraulic control system of underground pipe network construction spiral pipe push bench.
Background
In urban pipe network construction, the road surface needs to be dug again in traditional pipe network transformation and construction, so that economic waste is caused, and traffic and environment pollution are also influenced. Compared with the traditional construction method, the pipe jacking construction method has the advantages of no need of excavating the ground, small occupied area, small traffic influence, high excavation speed, environmental protection, economy, high efficiency and the like, and has been comprehensively popularized and applied;
however, the construction equipment and the process of the micro-caliber pipeline with the diameter of less than 600mm are immature, and in the construction process, the existing hydraulic system for providing power for the spiral pipe jacking machine adopts one-way control, cannot realize simultaneous propelling and soil body cutting, needs to wait for the withdrawal of the hydraulic oil cylinder and carry out switching, and is low in efficiency, and the construction progress is greatly delayed. Therefore, the hydraulic control system of the spiral pipe jacking machine for underground pipe network construction is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic control system of underground pipe network construction spiral pipe pushing jack, supporting spiral pipe pushing jack that is applicable to the construction of the following micro-aperture pipeline of phi 600mm, for it provides power and control system, this system design double-circuit control simultaneously can guarantee that spiral pipe pushing jack impels the operation and the soil body cutting operation goes on simultaneously, reduces more than half because of waiting for hydraulic cylinder to withdraw, the extravagant operating time of control part switching, great improvement efficiency of construction.
The utility model discloses can realize through following technical scheme: a hydraulic control system of a spiral pipe jacking machine for underground pipe network construction comprises an oil tank, wherein a first pump source assembly and a second pump source assembly are respectively installed on the side surface of the oil tank, and the first pump source assembly and the second pump source assembly work independently;
the second pump source assembly is connected and controlled by a first control valve group, the first control valve group comprises a three-position four-way electro-hydraulic reversing valve, a pilot-operated overflow valve a, a pilot-operated overflow valve b, a measuring assembly and a filtering and radiating assembly, a P port of the three-position four-way electro-hydraulic reversing valve is connected with the second pump source assembly in series and is connected with the pilot-operated overflow valve b in parallel, a T port of the three-position four-way electro-hydraulic reversing valve is connected with the filtering and radiating assembly, the pilot-operated overflow valve a and the pilot-operated overflow valve b are both connected with an oil tank and are connected with adjacent measuring assemblies in parallel, the three-position four-way electro-hydraulic reversing valve is connected with a hydraulic motor and a double-hydraulic motor assembly, and the hydraulic motor and the double-hydraulic motor assembly are connected in parallel;
the first pump source assembly is connected and controlled by a second control valve group, the second control valve group comprises a three-position four-way manual reversing valve and three groups of measuring assemblies, a P port of the three-position four-way manual reversing valve is connected with the first pump source assembly in series and is connected with a pilot overflow valve a in parallel, a T port of the three-position four-way manual reversing valve is connected with a filtering and radiating assembly, and a flow control valve group and a hydraulic oil cylinder are connected with the three-position four-way manual reversing valve in series.
The utility model discloses a further technological improvement lies in: the middle positions of the three-position four-way electro-hydraulic reversing valve and the three-position four-way manual reversing valve are G-shaped.
The utility model discloses a further technological improvement lies in: two groups of one-way throttle valves contained in the flow control valve group are connected with a rodless cavity of the hydraulic oil cylinder.
The utility model discloses a further technological improvement lies in: and pressure measuring components are arranged at the joint of the three-position four-way electro-hydraulic reversing valve and the pilot operated overflow valve b and at the joint of the three-position four-way manual reversing valve and the pilot operated overflow valve a, and each pressure measuring component comprises a pressure gauge and a pressure sensor.
The utility model discloses a further technological improvement lies in: and a pressure measuring assembly is arranged at the joint of the three-position four-way electro-hydraulic reversing valve, the hydraulic motor and the double-hydraulic motor assembly.
The utility model discloses a further technological improvement lies in: the filtering and radiating assembly comprises an oil return filter and a water cooler, and a T port of the three-position four-way electro-hydraulic reversing valve or the three-position four-way manual reversing valve is connected with the oil return filter and cools hydraulic oil through the water cooler.
The utility model discloses a further technological improvement lies in: and hydraulic quick joints are adopted to connect the first control valve group and the second control valve group, the second control valve group and the hydraulic motor and the second control valve group and the double-hydraulic motor assembly.
Compared with the prior art, the utility model discloses possess following beneficial effect:
1. the arrangement of the unidirectional variable hydraulic pump a, the motor a, the unidirectional variable hydraulic pump b and the motor b is beneficial to the independent or simultaneous work of the first pump source assembly and the second pump source assembly, the control is flexible, and the working efficiency is improved;
2. the flow control valve group ensures that the speed of the hydraulic oil cylinder is controllable when the hydraulic oil cylinder extends out in an actual working condition, so that the working efficiency is improved;
3. the load control valve group realizes the stable action of the hydraulic motor, reduces hydraulic impact and improves the safety of the system;
4. the filtering and radiating assembly comprises an oil return filter and a water cooler, hydraulic oil is filtered and cooled, and the stability of the system is improved.
5. Each valve bank is connected with the execution element through a hydraulic quick connector, so that the disassembly and the assembly are convenient, the problem of hydraulic oil leakage caused by repeated disassembly and assembly of the oil pipe is reduced, and the environmental pollution is reduced.
Drawings
To facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the hydraulic control system of the present invention.
In the figure: 1. an oil tank; 2. a first pump source assembly; 3. a second pump source assembly; 4. a filtering heat dissipation assembly; 5. a first control valve group; 6. a second control valve group; 7. a flow control valve group; 8. a load control valve bank; 9. a hydraulic cylinder; 10. a hydraulic motor; 11. a dual hydraulic motor assembly; 12. a liquid level meter; 13. a liquid thermometer; 14. an air cleaner; 15. and a measuring component.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, a hydraulic control system of a spiral pipe jacking machine for underground pipe network construction comprises an oil tank 1, wherein a first pump source assembly 2 and a second pump source assembly 3 are respectively installed on the side surface of the oil tank 1; the first pump source assembly 2 and the second pump source assembly 3 work independently, so that the hydraulic oil cylinder 9 and the hydraulic motor 10 or the double-hydraulic-motor assembly 11 can run simultaneously, the working efficiency is improved, and the oil tank 1 is also provided with a liquid level meter 12, a liquid temperature meter 13 and an air filter 14;
the first pump source assembly 2 comprises a self-sealing oil absorption filter a, a one-way variable hydraulic pump a, a one-way valve a, a coupler a and a motor a, the self-sealing oil absorption filter a is installed on one side of the oil tank 1, an oil outlet of the self-sealing oil absorption filter a is connected with an oil inlet of the one-way variable hydraulic pump a through an oil pipe, an input shaft of the one-way variable hydraulic pump a is connected with an output shaft of the motor a through the coupler a, and the one-way valve a is connected with an oil outlet of the one-way variable hydraulic pump a through a threaded pipe joint;
the second pump source component 3 comprises a self-sealing oil absorption filter b, a one-way variable hydraulic pump b, a one-way valve b, a coupler b and a motor b; the self-sealing oil absorption filter b is arranged on the side surface of the oil tank 1, an oil outlet of the self-sealing oil absorption filter b is connected with an oil inlet of the one-way variable hydraulic pump b through an oil pipe, an input shaft of the one-way variable hydraulic pump b is connected with an output shaft of the motor b through a coupler b, and the one-way valve b is connected with an oil outlet of the one-way variable hydraulic pump b through a threaded pipe joint;
the first control valve group 5 comprises a three-position four-way electro-hydraulic reversing valve, a pilot-operated overflow valve a, a pilot-operated overflow valve b, a measuring component 15 and a filtering and heat-radiating component 4; a port P (namely an oil inlet) of the three-position four-way electro-hydraulic reversing valve is connected with the second pump source assembly 3 in series and is connected with the pilot overflow valve b in parallel, a port T (namely an oil outlet) of the three-position four-way electro-hydraulic reversing valve is connected with a filtering and radiating assembly 4, and the filtering and radiating assembly 4 comprises an oil return filter and a water cooler; the pilot-operated overflow valve a and the pilot-operated overflow valve b are both connected with the oil tank 1 and are connected with the adjacent measuring components 15 in parallel, and the measuring components 15 comprise a pressure gauge and a pressure sensor; the hydraulic motor 10 and the double-hydraulic motor assembly 11 are connected in parallel and connected with the three-position four-way electro-hydraulic reversing valve, so that simultaneous work or independent work can be realized, the control is flexible, and the working efficiency is improved.
The second control valve group 6 comprises a three-position four-way manual reversing valve and three groups of measuring components 15, a port P of the three-position four-way manual reversing valve is connected with the first pump source component 2 in series and is connected with the pilot operated overflow valve a in parallel, and a port T is connected with the filtering and radiating component 4; the three-position four-way manual reversing valve is connected with the flow control valve group 7 and the hydraulic oil cylinder 9 in series, so that the action of the hydraulic oil cylinder 9 is controlled; because a manual reversing valve is adopted, the hydraulic oil cylinder 9 is flexibly controlled and is convenient for manual operation;
the flow control valve group 7 comprises two groups of one-way throttle valves and is connected with a rodless cavity of the hydraulic oil cylinder 9, so that the jacking action speed of the hydraulic oil cylinder 9 is controlled;
the load control valve group 8 comprises a load control valve which is connected with the hydraulic motor 10, realizes the stable action of the hydraulic motor 10 and reduces the hydraulic impact, and the load control valve is specifically a flow type balance valve.
It should be noted that the middle functions of the three-position four-way electro-hydraulic reversing valve and the three-position four-way manual reversing valve are G-shaped; all adopt hydraulic pressure quick-operation joint to be connected between first valve unit 5 and the second valve unit 6, between second valve unit 6 and hydraulic motor 10, between second valve unit 6 and the two hydraulic motor subassemblies 11, the dismouting of being convenient for reduces simultaneously because of the hydraulic oil seepage problem that dismouting oil pipe leads to repeatedly, reduces environmental pollution.
When the utility model is used, the arrangement of the one-way variable hydraulic pump a, the motor a, the one-way variable hydraulic pump b and the motor b is beneficial to the independent or simultaneous work of the first pump source component 2 and the second pump source component 3, thereby improving the work efficiency; because a three-position four-way manual reversing valve is adopted, the hydraulic oil cylinder 9 is flexibly controlled and is convenient for manual operation; the rodless cavity of the hydraulic oil cylinder 9 is connected with a one-way throttle valve of the flow control valve group 7, so that the control of the jacking action speed of the hydraulic oil cylinder 9 is facilitated; the hydraulic motor 10 is connected with a load control valve of the load control valve group 8, so that the hydraulic motor 10 can stably act, and hydraulic impact is reduced; each valve bank is connected with each execution element by adopting a hydraulic quick joint, so that the disassembly and the assembly are convenient, the problem of hydraulic oil leakage caused by repeatedly disassembling and assembling the oil pipe is reduced, and the environmental pollution is reduced.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments that do not depart from the technical scope of the present invention are within the scope of the present invention.
Claims (7)
1. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction comprises an oil tank (1), and is characterized in that a first pump source assembly (2) and a second pump source assembly (3) are respectively installed on the side surface of the oil tank (1), and the first pump source assembly (2) and the second pump source assembly (3) work independently;
the second pump source assembly (3) is connected and controlled by a first control valve group (5), the first control valve group (5) comprises a three-position four-way electro-hydraulic reversing valve, a pilot-operated overflow valve a, a pilot-operated overflow valve b, a measuring assembly (15) and a filtering and radiating assembly (4), a P port of the three-position four-way electro-hydraulic reversing valve is connected with the second pump source assembly (3) in series and connected with the pilot-operated overflow valve b in parallel, a T port of the three-position four-way electro-hydraulic reversing valve is connected with the filtering and radiating assembly (4), the pilot-operated overflow valve a and the pilot-operated overflow valve b are both connected with the oil tank (1) and connected with the adjacent measuring assembly (15) in parallel, the three-position four-way electro-hydraulic reversing valve is connected with a hydraulic motor (10) and a double-hydraulic motor assembly (11), and the hydraulic motor (10) and the double-hydraulic motor assembly (11) are connected in parallel;
the first pump source assembly (2) is connected and controlled by a second control valve group (6), the second control valve group (6) comprises a three-position four-way manual reversing valve and three groups of measuring assemblies (15), a P port of the three-position four-way manual reversing valve is connected with the first pump source assembly (2) in series and is connected with a pilot overflow valve a in parallel, a T port of the three-position four-way manual reversing valve is connected with a filtering and heat dissipating assembly (4), and the three-position four-way manual reversing valve is connected with a flow control valve group (7) and a hydraulic oil cylinder (9) in series.
2. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction of claim 1, wherein the middle position functions of the three-position four-way electro-hydraulic reversing valve and the three-position four-way manual reversing valve are G-shaped.
3. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction according to claim 1, wherein two sets of one-way throttle valves included in the flow control valve bank (7) are connected with a rodless cavity of the hydraulic oil cylinder (9).
4. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction according to claim 1, wherein pressure measuring components (15) are mounted at the joint of the three-position four-way electro-hydraulic reversing valve and the pilot overflow valve b and at the joint of the three-position four-way manual reversing valve and the pilot overflow valve a, and the pressure measuring components (15) comprise a pressure gauge and a pressure sensor.
5. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction, as claimed in claim 1, wherein a pressure measuring assembly (15) is installed at the connection of the three-position four-way electro-hydraulic directional valve, the hydraulic motor (10) and the double hydraulic motor assembly (11).
6. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction, as claimed in claim 1, wherein the filtering and heat dissipating assembly (4) comprises an oil return filter and a water cooler, and the T port of the three-position four-way electro-hydraulic directional valve or the three-position four-way manual directional valve is connected with the oil return filter and cools the hydraulic oil through the water cooler.
7. The hydraulic control system of the spiral pipe jacking machine for underground pipe network construction according to claim 1, wherein the first control valve set (5) and the second control valve set (6), the second control valve set (6) and the hydraulic motor (10), and the second control valve set (6) and the double hydraulic motor assembly (11) are connected by hydraulic quick connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986475.9U CN217976875U (en) | 2022-07-29 | 2022-07-29 | Hydraulic control system of spiral pipe jacking machine for underground pipe network construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986475.9U CN217976875U (en) | 2022-07-29 | 2022-07-29 | Hydraulic control system of spiral pipe jacking machine for underground pipe network construction |
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| Publication Number | Publication Date |
|---|---|
| CN217976875U true CN217976875U (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221986475.9U Active CN217976875U (en) | 2022-07-29 | 2022-07-29 | Hydraulic control system of spiral pipe jacking machine for underground pipe network construction |
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| Country | Link |
|---|---|
| CN (1) | CN217976875U (en) |
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2022
- 2022-07-29 CN CN202221986475.9U patent/CN217976875U/en active Active
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