CN216478083U - Energy-saving shield constructs quick-witted section of thick bamboo rotary hydraulic system - Google Patents
Energy-saving shield constructs quick-witted section of thick bamboo rotary hydraulic system Download PDFInfo
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- CN216478083U CN216478083U CN202122664008.6U CN202122664008U CN216478083U CN 216478083 U CN216478083 U CN 216478083U CN 202122664008 U CN202122664008 U CN 202122664008U CN 216478083 U CN216478083 U CN 216478083U
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Abstract
The utility model provides an energy-saving type shield tunneling machine pipe piece rotating hydraulic system which comprises an oil tank, a motor, a constant-pressure variable pump, a one-way valve, an overflow valve, a two-position two-way electromagnetic directional valve, a hydraulic transformer, an energy accumulator, a three-position four-way electromagnetic directional valve, a first safety valve, a second safety valve and a rack oil cylinder, wherein an oil inlet of the constant-pressure variable pump is connected with the oil tank, an oil outlet of the constant-pressure variable pump is connected with an oil inlet of the one-way valve, an oil outlet of the one-way valve is respectively connected with an oil inlet of the overflow valve, an oil port P of the two-position two-way electromagnetic directional valve and a high-pressure port U1 of the hydraulic transformer, a high-pressure port U1 of the hydraulic transformer is connected with an oil inlet P1 of the three-position four-way electromagnetic directional valve, an oil port A of the two-position two-way electromagnetic directional valve is connected with an oil port of the energy accumulator, and an oil outlet of the overflow valve is connected with the oil tank. The utility model reduces pressure loss, has high energy transfer efficiency and obvious energy-saving effect, and reduces the installed power of a hydraulic system.
Description
Technical Field
The utility model relates to a hydraulic system, in particular to an energy-saving type shield tunneling machine tube sheet rotating hydraulic system.
Background
Segment assembly is important assembly equipment of tunnel lining, circumferential segment assembly is carried out by means of rotating, moving back and forth, the assembly angle is 0 degree in the 6 o' clock direction, and is respectively 0 degree-200 degrees after left-hand rotation and 0 degree-200 degrees after right-hand rotation, and the segment assembly is completed, and then the segment rotates to the 0 degree position in an idle load mode, and the gravitational potential energy is considerable in the self descending process, so that the gravitational potential energy recovery in the circumferential motion and vertical descending processes of the segment assembly machine can be used for lifting and rotating the segment. The existing segment assembly hydraulic system usually adopts a pressure reducing valve and a flow valve to adjust pressure and flow, the system has energy loss, and gravity load energy is wasted.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an energy-saving shield tunneling machine tube sheet rotating hydraulic system aiming at the defects in the prior art, so that energy conservation and consumption reduction are realized, and the installed power of the hydraulic system is reduced.
In order to solve the technical problem, the utility model provides an energy-saving type shield tunneling machine pipe slice rotating hydraulic system which comprises an oil tank, a motor, a constant-pressure variable pump, a one-way valve, an overflow valve, a two-position two-way electromagnetic reversing valve, a hydraulic transformer, an energy accumulator, a three-position four-way electromagnetic reversing valve, a first safety valve, a second safety valve and a rack oil cylinder, wherein an oil inlet of the constant-pressure variable pump is connected with the oil tank, an oil outlet of the constant-pressure variable pump is connected with an oil inlet of the one-way valve, an oil outlet of the one-way valve is respectively connected with an oil inlet of the overflow valve, an oil port P of the two-position two-way electromagnetic reversing valve and a high pressure port U1 of the hydraulic transformer, a high pressure port U1 of the hydraulic transformer is connected with an oil inlet P1 of the three-position four-way electromagnetic reversing valve, an oil port A of the two-position two-way electromagnetic reversing valve is connected with an oil port of the energy accumulator, and an oil outlet of the overflow valve is connected with the oil tank.
And an oil return port R1 of the hydraulic transformer is connected with an oil tank, and a load port V1 of the hydraulic transformer is connected with an oil return port T1 of the three-position four-way electromagnetic directional valve.
And a working oil port A1 of the three-position four-way electromagnetic directional valve is connected with an oil inlet of the first safety valve, an oil outlet of the second safety valve and a right oil port of the rack oil cylinder, and a working oil port B1 of the three-position four-way electromagnetic directional valve is connected with an oil outlet of the first safety valve, an oil inlet of the second safety valve and a left oil port of the rack oil cylinder.
The set pressure of the first safety valve (10) and the second safety valve (11) is higher than the working pressure of the system.
Has the advantages that: the hydraulic transformer is applied to the rotary hydraulic circuit of the shield machine segment, the pressure of the hydraulic circuit is adjusted by adjusting the discharge capacity of the hydraulic transformer, the pressure loss is reduced, and the energy can be recovered and reused; because the system is not provided with a throttling element, the energy transfer efficiency is high, the energy loss in the throttling speed regulation system is avoided, the energy-saving effect is obvious, and the installed power of the hydraulic system is reduced.
Drawings
FIG. 1 is a schematic view of the present invention.
In the figure: 1. an oil tank; 2. a motor; 3. a constant pressure variable pump; 4. a one-way valve; 5. an overflow valve; 6. a two-position two-way electromagnetic directional valve; 7. a hydraulic transformer; 8. an accumulator; 9. a three-position four-way electromagnetic directional valve; 10. a first safety valve; 11. a second relief valve; 12. a rack oil cylinder.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model provides an energy-saving shield tunneling machine segment rotating hydraulic system, which comprises an oil tank 1, a motor 2, a constant-pressure variable pump 3, a one-way valve 4, an overflow valve 5, a two-position two-way electromagnetic directional valve 6, a hydraulic transformer 7, an energy accumulator 8, a three-position four-way electromagnetic directional valve 9, a first safety valve 10, a second safety valve 11 and a rack oil cylinder 12, an oil inlet of the constant-pressure variable pump 3 is connected with the oil tank 1, an oil outlet of the constant-pressure variable pump 3 is connected with an oil inlet of the check valve 4, an oil outlet of the check valve 4 is respectively connected with an oil inlet of the overflow valve 5, an oil port P of the two-position two-way electromagnetic directional valve 6 and a high-pressure port U1 of the hydraulic transformer 7, a high-pressure port U1 of the hydraulic transformer 7 is connected with an oil inlet P1 of the three-position four-way electromagnetic directional valve 9, an oil port A of the two-position two-way electromagnetic directional valve 6 is connected with an oil port of the energy accumulator 8, and an oil outlet of the overflow valve 5 is connected with the oil tank 1.
An oil return port R1 of the hydraulic transformer 7 is connected with the oil tank 1, and a load port V1 of the hydraulic transformer 7 is connected with an oil return port T1 of the three-position four-way electromagnetic directional valve 9.
The working oil port A1 of the three-position four-way electromagnetic directional valve 9 is connected with the oil inlet of the first safety valve 10, the oil outlet of the second safety valve 11 and the right end oil port of the rack oil cylinder 12, and the working oil port B1 of the three-position four-way electromagnetic directional valve 9 is connected with the oil outlet of the first safety valve 10, the oil inlet of the second safety valve 11 and the left end oil port of the rack oil cylinder 12.
The working principle of the utility model is as follows:
the motor 2 is started by power supply, and the constant-pressure variable pump 3 rotates; an oil inlet of the constant-pressure variable pump 3 sucks oil from the oil tank 1, pressure oil output by the constant-pressure variable pump enters an oil inlet of the check valve 4 through an oil outlet, and respectively enters an oil inlet of the overflow valve 5, a high-pressure port U1 of the hydraulic transformer 7, an oil inlet P1 of the three-position four-way electromagnetic directional valve 9 and an oil port P of the two-position two-way electromagnetic directional valve 6 from an oil outlet of the check valve 4.
When the segment assembling machine is to drive segments to rotate clockwise, the pressure of a high-pressure port U1 of a hydraulic transformer 7 is adjusted to be higher than the pressure of a load port V1, the left-end electromagnet of a three-position four-way electromagnetic directional valve 9 is controlled to be electrified, the three-position four-way electromagnetic directional valve 9 works at the left position, an oil inlet P1 is communicated with a working oil port A1, an oil return port T1 is communicated with a working oil port B1, the electromagnet of a two-position two-way electromagnetic directional valve 6 is controlled to be electrified, a constant-pressure variable pump 3 and an energy accumulator 8 supply oil to a system together, pressure oil enters a right cavity of a rack oil cylinder 12 through oil ports P1 and A1 of the three-position four-way electromagnetic directional valve 9 and oil ports at the right end of the rack oil cylinder 12, a rack piston of the rack oil cylinder 12 moves leftwards, hydraulic oil in the left cavity of the rack oil cylinder 12 flows back to an oil tank 1 through the left end of the oil cylinder rack 12, the three-position oil ports B1 and T1 of the three-position four-way electromagnetic directional valve 9, the load port V1 and an oil port R1 of the hydraulic transformer 7, the pipe sheet rotates clockwise to a circumferential designated position under the gear rack transmission side effect. And controlling the electromagnet of the two-position two-way electromagnetic reversing valve 6 to be powered off, controlling the electromagnet at the left end of the three-position four-way electromagnetic reversing valve 9 to be powered off, and enabling the three-position four-way electromagnetic reversing valve 9 to be located in the middle position to work to complete the assembling construction of the duct piece. The rotation speed of the pipe piece is realized by adjusting the displacement of the hydraulic transformer 7.
After the section of jurisdiction is assembled at the circumference assigned position, need rotate certain angle along anticlockwise and descend to initial position, prepare to grab and take off a section of jurisdiction. The motor 2 is controlled to be powered off, and the constant-pressure variable pump 3 stops working; and controlling the electromagnet of the two-position two-way electromagnetic directional valve 6 to be electrified. The segment erector rotates anticlockwise under the action of gravity moment of the segment erector, a rack piston of a rack oil cylinder 12 is driven to move rightwards through a gear-rack transmission pair, oil in a right cavity of the rack oil cylinder 12 is charged into an energy accumulator 8, and energy recovery is achieved. When the oil pressure in the energy accumulator 8 reaches the set pressure of the overflow valve 5, the electromagnet of the two-position two-way electromagnetic directional valve 6 is controlled to be powered off, and redundant pressure oil flows back to the oil tank through the overflow valve 5. At this time, the oil in the oil tank 1 enters the left cavity of the rack oil cylinder 12 through the oil return port R1 and the load port V1 of the hydraulic transformer 7, the oil ports T1 and B1 of the three-position four-way electromagnetic directional valve 9, and the left end oil port of the rack oil cylinder 12.
When the segment assembling machine drives the segment to rotate anticlockwise, controlling an electromagnet at the right end of the three-position four-way electromagnetic reversing valve 9 to be electrified, enabling the three-position four-way electromagnetic reversing valve 9 to work at the right position, enabling an oil inlet P1 to be communicated with a working oil port B1, enabling an oil return port T1 to be communicated with a working oil port A1, controlling an electromagnet of the two-position two-way electromagnetic reversing valve 6 to be electrified, enabling the constant-pressure variable pump 3 and the energy accumulator 8 to supply oil to a system together, enabling pressure oil to enter a left cavity of the rack oil cylinder 12 through oil ports P1 and B1 of the three-position four-way electromagnetic reversing valve 9 and a left end oil port of the rack oil cylinder 12, enabling a rack piston of the rack oil cylinder 12 to move rightwards, enabling hydraulic oil in the right cavity of the rack oil cylinder 12 to pass through a right end oil port of the rack oil cylinder 12, oil ports A1 and T1 of the three-position four-way electromagnetic directional valve 9, a load port V1 and an oil return port R1 of the hydraulic transformer 7 flow back to the oil tank 1, and a pipe sheet rotates anticlockwise to a circumferential designated position under the action of a rack-and-pinion transmission side effect. And controlling the electromagnet of the two-position two-way electromagnetic reversing valve 6 to be powered off, controlling the electromagnet at the right end of the three-position four-way electromagnetic reversing valve 9 to be powered off, and operating the three-position four-way electromagnetic reversing valve 9 in a middle position to complete the assembling construction of the duct piece.
After the section of jurisdiction is assembled at the circumference assigned position, need rotate certain angle along clockwise and descend to initial position, prepare to grab and take off a section of jurisdiction. The motor 2 is controlled to be powered off, and the constant-pressure variable pump 3 stops working; and controlling the electromagnet of the two-position two-way electromagnetic directional valve 6 to be electrified. The segment erector rotates clockwise under the action of gravity moment of the segment erector, a rack piston of a rack oil cylinder 12 is driven to move leftwards through a gear-rack transmission pair, oil in a left cavity of the rack oil cylinder 12 is charged into an energy accumulator 8, and energy recovery is realized. When the oil pressure in the energy accumulator 8 reaches the set pressure of the overflow valve 5, the electromagnet of the two-position two-way electromagnetic directional valve 6 is controlled to be powered off, and redundant pressure oil flows back to the oil tank through the overflow valve 5. At this time, the oil in the oil tank 1 enters the right cavity of the rack oil cylinder 12 through the oil return port R1 and the load port V1 of the hydraulic transformer 7, the oil ports T1 and a1 of the three-position four-way electromagnetic directional valve 9, and the right end oil port of the rack oil cylinder 12.
According to the operation process, the assembly of all the pipe pieces can be completed.
The set pressure of the first safety valve 10 and the second safety valve 11 is 5% -10% higher than the working pressure of the system, and when the system works normally, the first safety valve 10 and the second safety valve 11 are not opened; when the load is suddenly increased and the system pressure is increased to exceed the set pressure of the first safety valve 10 and the second safety valve 11, the first safety valve 10 and the second safety valve 11 are opened and unloaded.
The hydraulic transformer is applied to the rotary hydraulic circuit of the shield machine segment, the pressure of the hydraulic circuit is adjusted by adjusting the discharge capacity of the hydraulic transformer, the pressure loss is reduced, and the energy can be recovered and reused; because the system is not provided with a throttling element, the energy transfer efficiency is high, the energy loss in the throttling speed regulation system is avoided, the energy-saving effect is obvious, and the installed power of the hydraulic system is reduced.
The above-described embodiments of the utility model are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (2)
1. The utility model provides an energy-saving shield constructs rotatory hydraulic system of quick-witted section of jurisdiction which characterized in that: the oil-saving control system comprises an oil tank (1), a motor (2), a constant-pressure variable pump (3), a check valve (4), an overflow valve (5), a two-position two-way electromagnetic directional valve (6), a hydraulic transformer (7), an energy accumulator (8), a three-position four-way electromagnetic directional valve (9), a first safety valve (10), a second safety valve (11) and a rack oil cylinder (12), wherein an oil inlet of the constant-pressure variable pump (3) is connected with the oil tank (1), an oil outlet of the constant-pressure variable pump (3) is connected with an oil inlet of the check valve (4), an oil outlet of the check valve (4) is respectively connected with an oil inlet of the overflow valve (5), an oil port P of the two-position two-way electromagnetic directional valve (6) and a high-pressure port U1 of the hydraulic transformer (7), a high-pressure port U1 of the hydraulic transformer (7) and an oil inlet P1 of the three-position four-way electromagnetic directional valve (9), an oil port A of the two-position two-way electromagnetic directional valve (6) is connected with an oil port of the energy accumulator (8), an oil outlet of the overflow valve (5) is connected with the oil tank (1); an oil return port R1 of the hydraulic transformer (7) is connected with the oil tank (1), and a load port V1 of the hydraulic transformer (7) is connected with an oil return port T1 of the three-position four-way electromagnetic reversing valve (9); the working oil port A1 of the three-position four-way electromagnetic directional valve (9) is connected with the oil inlet of the first safety valve (10), the oil outlet of the second safety valve (11) and the right oil port of the rack oil cylinder (12), and the working oil port B1 of the three-position four-way electromagnetic directional valve (9) is connected with the oil outlet of the first safety valve (10), the oil inlet of the second safety valve (11) and the left oil port of the rack oil cylinder (12).
2. The energy-saving shield tunneling machine segment rotating hydraulic system of claim 1, characterized in that: the set pressure of the first safety valve (10) and the second safety valve (11) is higher than the working pressure of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122664008.6U CN216478083U (en) | 2021-11-02 | 2021-11-02 | Energy-saving shield constructs quick-witted section of thick bamboo rotary hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122664008.6U CN216478083U (en) | 2021-11-02 | 2021-11-02 | Energy-saving shield constructs quick-witted section of thick bamboo rotary hydraulic system |
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| CN216478083U true CN216478083U (en) | 2022-05-10 |
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| CN202122664008.6U Active CN216478083U (en) | 2021-11-02 | 2021-11-02 | Energy-saving shield constructs quick-witted section of thick bamboo rotary hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115972664A (en) * | 2022-12-19 | 2023-04-18 | 山东泰丰智能控制股份有限公司 | Angle modulation device control system |
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2021
- 2021-11-02 CN CN202122664008.6U patent/CN216478083U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115972664A (en) * | 2022-12-19 | 2023-04-18 | 山东泰丰智能控制股份有限公司 | Angle modulation device control system |
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