CN208634508U - A kind of main top hydraulic system of jacking construction - Google Patents
A kind of main top hydraulic system of jacking construction Download PDFInfo
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- CN208634508U CN208634508U CN201821272658.8U CN201821272658U CN208634508U CN 208634508 U CN208634508 U CN 208634508U CN 201821272658 U CN201821272658 U CN 201821272658U CN 208634508 U CN208634508 U CN 208634508U
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- hydraulic
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- extraction assembly
- hydraulic cylinder
- fuel tank
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Abstract
The utility model discloses a kind of main top hydraulic systems of jacking construction, including fuel tank, liquidometer, liquid thermometer, air cleaner, electromagnetic relief valve, pilot operated compound relief valve, pressure gauge, 3-position 4-way electro-hydraulic reversing valve, hydraulic control one-way valve, shut-off valve, hydraulic cylinder, the first extraction assembly, the second extraction assembly；The fuel tank side is equipped with the first extraction assembly and the second extraction assembly；First extraction assembly includes self-sealing oil absorption filter a, unidirectional volume adjustable hydraulic pump a, shaft coupling a, motor a and check valve a；The utility model increases flow system flow and accelerates cylinder movement speed, improves working efficiency；Operating pressure can be formed by being conducive to system；Guarantee in hydraulic cylinder extending action, oil return line will not generate back pressure because of big flow, oil circuit blocking, improve security of system；It is able to ascend hydraulic cylinder and withdraws speed, reduce more than half because waiting hydraulic cylinder to withdraw the wasted working time, greatly improve construction efficiency.
Description
Technical field
The utility model relates to field of hydraulic equipment, specially a kind of main top hydraulic system of jacking construction.
Background technique
In jacking construction, main top hydraulic system is very important component part, it is push-bench and entire pipeline
Forward motion provides pushing tow power.Currently, the main top hydraulic system of jacking construction is mainly by hydraulic pump, reversal valve, hydraulic cylinder
Composition, carrying out guiding to the hydraulic oil that hydraulic pump is discharged by reversal valve makes hydraulic cylinder stretch out or withdraw.
During jacking construction, since the soil body is to the resistance of push-bench and pipeline, cause the load of hydraulic cylinder continuous
Frequently variation causes hydraulic system pressure fluctuation big and easily forms back pressure, seriously affected the safety of hydraulic system.In order to protect
Hydraulic pump off-load is demonstrate,proved, the Median Function of electro-hydraulic reversing valve selects M type, by being limited by electrohydraulic change valve structure principle, in M type
The case where position, which is easy to cause, reversal valve is occurred and can not commutate, and main top hydraulic system is not available, has seriously affected hydraulic system
Stable type.
During jacking construction, when push-bench jacking, needs the hydraulic cylinder of main top hydraulic system slowly to stretch out, and is constructing
When preparing installation pipe of cement, then the hydraulic cylinder of main top hydraulic system is needed quickly to withdraw, to concede the mounting distance of pipe of cement；
But since hydraulic cylinder rod chamber volume is less than rodless cavity volume, so oil return line is easy to produce back pressure when hydraulic cylinder is withdrawn
Excessively high phenomenon greatly reduces the stability and safety of main top hydraulic system, and oil cylinder withdrawal speed slowly reduces construction
Working efficiency；In view of the above-mentioned problems, so it is necessary that we, which design a kind of main top hydraulic system of jacking construction,.
Utility model content
The purpose of this utility model is to provide a kind of main top hydraulic systems of jacking construction, and it is dynamic to increase flow system flow quickening cylinder
Make speed, improves working efficiency；Operating pressure can be formed by being conducive to system；Guarantee in hydraulic cylinder extending action, oil return line
Back pressure will not be generated because of big flow, oil circuit blocking, improve security of system；It is able to ascend hydraulic cylinder and withdraws speed, subtract
More than half few working time wasted because of waiting hydraulic cylinder withdrawal, greatly improve construction efficiency.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of main top hydraulic system of jacking construction, including fuel tank, liquidometer, liquid thermometer, air cleaner, electromagnetism overflow
Valve, pilot operated compound relief valve, pressure gauge, 3-position 4-way electro-hydraulic reversing valve, hydraulic control one-way valve, shut-off valve, hydraulic cylinder, first extract
Component, the second extraction assembly；The side of fuel tank is separately installed with the first extraction assembly and the second extraction assembly, and the first extraction group
Part and the setting parallel with one another of the second extraction assembly；
The liquidometer, liquid thermometer, air cleaner are installed on fuel tank；
First extraction assembly include self-sealing oil absorption filter a, unidirectional volume adjustable hydraulic pump a, shaft coupling a, motor a and
Check valve a, the self-sealing oil absorption filter a are mounted on the side of fuel tank, and the oil outlet and list of self-sealing oil absorption filter a
It is connected to the oil inlet of volume adjustable hydraulic pump a by oil pipe, the input shaft of the unidirectional volume adjustable hydraulic pump a passes through shaft coupling a and electricity
The output axis connection of machine a, the check valve a are connect by screwed pipe joint with the oil outlet of unidirectional volume adjustable hydraulic pump a；
Second extraction assembly include self-sealing oil absorption filter b, unidirectional volume adjustable hydraulic pump b, shaft coupling b, motor b and
Check valve b, the self-sealing oil absorption filter b are mounted on the side of fuel tank, and the oil outlet and list of self-sealing oil absorption filter b
It is connected to the oil inlet of volume adjustable hydraulic pump b by oil pipe, the input shaft of the unidirectional volume adjustable hydraulic pump b passes through shaft coupling b and electricity
The output axis connection of machine b, the check valve b are connect by screwed pipe joint with the oil outlet of unidirectional volume adjustable hydraulic pump b；
The P mouth of the 3-position 4-way electro-hydraulic reversing valve connect and communicates with check valve a, electromagnetic relief valve and check valve b respectively,
The 3-position 4-way electro-hydraulic reversing valve and electromagnetic relief valve are in parallel relationship, and the T mouth and fuel tank of 3-position 4-way electro-hydraulic reversing valve
Connection, the hydraulic cylinder be provided with it is multiple, and between hydraulic cylinder be in parallel relationship, the oil inlet of the hydraulic control one-way valve with
Hydraulic cylinder rodless cavity oil circuit connection, and the control mouth of hydraulic control one-way valve and hydraulic cylinder rod chamber oil circuit connection, the guide
The opposite ends of formula overflow valve respectively with fuel tank and hydraulic cylinder rod chamber oil circuit connection, the electromagnetic relief valve and the guide
Formula overflow valve is connect with fuel tank.
As a further solution of the present invention: the Median Function of the 3-position 4-way electro-hydraulic reversing valve is O-shaped.
As a further solution of the present invention: the electromagnetic relief valve is open type.
As a further solution of the present invention: the electromagnet and the 3-position 4-way in the electromagnetic relief valve are electro-hydraulic
Electromagnet in reversal valve is associated with by electrical control.
As a further solution of the present invention: the 3-position 4-way electro-hydraulic reversing valve and electromagnetic relief valve junction are pacified
Equipped with pressure gauge.
As a further solution of the present invention: being equipped with shut-off valve on the hydraulic cylinder.
The utility model has the beneficial effects that
1. being conducive to the first pumping due to the setting of unidirectional volume adjustable hydraulic pump a, motor a, unidirectional volume adjustable hydraulic pump b and motor b
It takes component and the second extraction assembly individually or works at the same time, increase flow system flow and accelerate cylinder movement speed, improve working efficiency；
2. the middle position technical ability of 3-position 4-way electro-hydraulic reversing valve be it is O-shaped, greatly reduce 3-position 4-way electro-hydraulic reversing valve and do not change
To the case where occur；When the electromagnet of 3-position 4-way electro-hydraulic reversing valve is powered on, then the electromagnet of electromagnetic relief valve leads to simultaneously
Electricity work, and whether left position electromagnet or right position electromagnet are powered 3-position 4-way electro-hydraulic reversing valve, the electricity of electromagnetic relief valve
Magnet is powered simultaneously, and operating pressure can be formed by being conducive to system；
3. hydraulic cylinder rod chamber is connected with pilot operated compound relief valve, guarantee that, in hydraulic cylinder extending action, oil return line is not
Security of system can be improved because big flow, oil circuit blocking generate back pressure；
4. hydraulic cylinder withdrawal acts, the hydraulic control one-way valve of hydraulic cylinder rodless cavity connection is opened, and is directly connected to fuel tank,
The quick drainback passage of hydraulic cylinder is increased, hydraulic cylinder is able to ascend and withdraws speed, reduces more than half because waiting
Hydraulic cylinder withdraws the wasted working time, greatly improves construction efficiency.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the utility model hydraulic schematic diagram；
In figure: 1, fuel tank；2, liquidometer；3, liquid thermometer；4, air cleaner；5, self-sealing oil absorption filter a；6, unidirectional
Volume adjustable hydraulic pump a；7, check valve a；8, shaft coupling a；9, motor a；10, self-sealing oil absorption filter b；11, unidirectional variable delivery hydraulic
Pump b；12, check valve b；13, shaft coupling b；14, motor b；15, electromagnetic relief valve；16, pilot operated compound relief valve；17, pressure gauge；
18,3-position 4-way electro-hydraulic reversing valve；19, hydraulic control one-way valve；20, shut-off valve；21, hydraulic cylinder；22, the first extraction assembly；23,
Second extraction assembly.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with embodiment, it is clear that described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Example is applied, all other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
As shown in Figure 1, a kind of main top hydraulic system of jacking construction, including fuel tank 1, liquidometer 2, liquid thermometer 3, air-filtering
Device 4, pilot operated compound relief valve 16, pressure gauge 17,3-position 4-way electro-hydraulic reversing valve 18, hydraulic control one-way valve 19, is cut electromagnetic relief valve 15
Only valve 20, hydraulic cylinder 21, the first extraction assembly 22, the second extraction assembly 23；The side of fuel tank 1 is separately installed with the first extraction
Component 22 and the second extraction assembly 23, and the first extraction assembly 22 and the setting parallel with one another of the second extraction assembly 23；
Liquidometer 2, liquid thermometer 3, air cleaner 4 are installed on fuel tank 1；
First extraction assembly 22 includes self-sealing oil absorption filter a5, unidirectional volume adjustable hydraulic pump a6, check valve a7, shaft coupling
A8, motor a9；Self-sealing oil absorption filter a5 is mounted on the side of fuel tank 1, and the oil outlet of self-sealing oil absorption filter a5 with
The oil inlet of unidirectional volume adjustable hydraulic pump a6 is connected by oil pipe, and the input shaft of unidirectional volume adjustable hydraulic pump a6 passes through shaft coupling a8 and electricity
The output axis connection of machine a9, check valve a7 are connect by screwed pipe joint with the oil outlet of unidirectional volume adjustable hydraulic pump a6；
Second extraction assembly 23 includes self-sealing oil absorption filter b10, unidirectional volume adjustable hydraulic pump b11, check valve b12, connection
Axis device b13, motor b14；Self-sealing oil absorption filter b10 is mounted on the side of fuel tank 1, and self-sealing oil absorption filter b10
Oil outlet is connect with the oil inlet of unidirectional volume adjustable hydraulic pump b11 by oil pipe, and the input shaft of unidirectional volume adjustable hydraulic pump b11 passes through connection
The output axis connection of axis device b13 and motor b14, check valve b12 are fuel-displaced by screwed pipe joint and unidirectional volume adjustable hydraulic pump b11's
Mouth connection；Be conducive to the first extraction assembly 22 and the second extraction assembly 23 so individually or work at the same time, increases flow system flow
Accelerate cylinder movement speed, improves working efficiency；
The P mouth of 3-position 4-way electro-hydraulic reversing valve 18 connect and communicates with check valve a7, electromagnetic relief valve 15 and check valve b12,
3-position 4-way electro-hydraulic reversing valve 18 and electromagnetic relief valve 15 are in parallel relationship, and T mouth of 3-position 4-way electro-hydraulic reversing valve 18 with it is oily
Case 1 connect, hydraulic cylinder 21 be provided with it is multiple, and between hydraulic cylinder 21 be in parallel relationship, the oil inlet of hydraulic control one-way valve 19
It with 21 rodless cavity oil circuit connection of hydraulic cylinder, is able to ascend hydraulic cylinder 21 and withdraws speed, it is hydraulic because waiting to reduce more than half
Oil cylinder 21 withdraws the wasted working time, greatly improves construction efficiency, and the control mouth and hydraulic oil of hydraulic control one-way valve 19
21 rod chamber oil circuit connection of cylinder, the opposite ends of pilot operated compound relief valve 16 respectively with 21 rod chamber oil circuit of fuel tank 1 and hydraulic cylinder
Connection, guarantees in 21 extending action of hydraulic cylinder, and oil return line will not generate back pressure because of big flow, oil circuit blocking, improves
Security of system, electromagnetic relief valve 15 and pilot operated compound relief valve 16 are connect with fuel tank 1.
As a further solution of the present invention: the middle position technical ability of 3-position 4-way electro-hydraulic reversing valve 18 be it is O-shaped, drop significantly
The case where low 3-position 4-way electro-hydraulic reversing valve 18 does not commutate.
As a further solution of the present invention: electromagnetic relief valve 15 is open type.
As a further solution of the present invention: electromagnet and 3-position 4-way electro-hydraulic reversing valve in electromagnetic relief valve 15
Electromagnet in 18 is associated with by electrical control.
As a further solution of the present invention: 3-position 4-way electro-hydraulic reversing valve 18 and 15 junction of electromagnetic relief valve are pacified
Equipped with pressure gauge 17.
Shut-off valve 20 is installed on the hydraulic cylinder 21.
Working principle of the utility model is: due to unidirectional volume adjustable hydraulic pump a6, motor a9, unidirectional volume adjustable hydraulic pump b11 and
The setting of motor b14 is conducive to the first extraction assembly 22 and the second extraction assembly 23 individually or works at the same time, increases system stream
Amount accelerates cylinder movement speed, improves working efficiency；The middle position technical ability of 3-position 4-way electro-hydraulic reversing valve 18 be it is O-shaped, greatly reduce
The case where 3-position 4-way electro-hydraulic reversing valve 18 does not commutate；When the electromagnet of 3-position 4-way electro-hydraulic reversing valve 18 is powered on,
Then the electromagnet of electromagnetic relief valve 15 is powered on simultaneously, and 3-position 4-way electro-hydraulic reversing valve 18 whether left position electromagnet or
Right position electromagnet is powered, and the electromagnet of electromagnetic relief valve 15 is powered simultaneously, and operating pressure can be formed by being conducive to system；Hydraulic oil
21 rod chamber of cylinder is connected with pilot operated compound relief valve 16, guarantees in 21 extending action of hydraulic cylinder, and oil return line will not be because of big stream
Amount, oil circuit blocking generate back pressure, improve security of system；When 21 withdrawal of hydraulic cylinder acts, 21 rodless cavity of hydraulic cylinder connects
The hydraulic control one-way valve 19 connect is opened, and is directly connected to fuel tank 1, that is, is increased the quick drainback passage of hydraulic cylinder 21, Neng Gouti
It rises hydraulic cylinder 21 and withdraws speed, reduce more than half because waiting hydraulic cylinder 21 to withdraw the wasted working time, greatly
Improve construction efficiency.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of main top hydraulic system of jacking construction, which is characterized in that including fuel tank (1), liquidometer (2), liquid thermometer (3), sky
Air cleaner (4), electromagnetic relief valve (15), pilot operated compound relief valve (16), pressure gauge (17), 3-position 4-way electro-hydraulic reversing valve
(18), hydraulic control one-way valve (19), shut-off valve (20), hydraulic cylinder (21), the first extraction assembly (22) and the second extraction assembly
(23), the side of the fuel tank (1) is equipped with the first extraction assembly (22) and the second extraction assembly (23), and described first extracts
Component (22) and second extraction assembly (23) setting parallel with one another；
The liquidometer (2), liquid thermometer (3) and air cleaner (4) are installed on fuel tank；
First extraction assembly (22) includes self-sealing oil absorption filter a (5), unidirectional volume adjustable hydraulic pump a (6), shaft coupling a
(8), motor a (9) and check valve a (7), the self-sealing oil absorption filter a (5) are mounted on the side of fuel tank (1), and self-sealing
The oil outlet of oil absorption filter a (5) is connect with the oil inlet of unidirectional volume adjustable hydraulic pump a (6) by oil pipe, the unidirectional variable liquid
The input shaft of press pump a (6) passes through the output axis connection of shaft coupling a (8) and motor a (9), and the check valve a (7) passes through screwed pipe
Connector is connect with the oil outlet of unidirectional volume adjustable hydraulic pump a (6)；
Second extraction assembly (23) includes self-sealing oil absorption filter b (10), unidirectional volume adjustable hydraulic pump b (11), shaft coupling b
(13), motor b (14) and check valve b (12), the self-sealing oil absorption filter b (10) are mounted on the side of fuel tank (1), and certainly
The oil outlet of envelope formula oil absorption filter b (10) is connect with the oil inlet of unidirectional volume adjustable hydraulic pump b (11) by oil pipe, described unidirectional
The input shaft of volume adjustable hydraulic pump b (11) passes through the output axis connection of shaft coupling b (13) and motor b (14), the check valve b (12)
It is connect by screwed pipe joint with the oil outlet of unidirectional volume adjustable hydraulic pump b (11)；
The P mouth of the 3-position 4-way electro-hydraulic reversing valve (18) respectively with check valve a (7), electromagnetic relief valve (15) and check valve b
(12) connection communicates, and the 3-position 4-way electro-hydraulic reversing valve (18) and electromagnetic relief valve (15) are in parallel relationship, and 3-position 4-way
The T mouth of electro-hydraulic reversing valve (18) is connect with fuel tank (1), the hydraulic cylinder (21) be provided with it is multiple, and hydraulic cylinder (21) it
Between be in parallel relationship, the oil inlet of the hydraulic control one-way valve (19) and hydraulic cylinder (21) rodless cavity oil circuit connection, and hydraulic control list
To the control mouth and hydraulic cylinder (21) rod chamber oil circuit connection of valve (19), the opposite ends point of the pilot operated compound relief valve (16)
Not with fuel tank (1) and hydraulic cylinder (21) rod chamber oil circuit connection, the electromagnetic relief valve (15) and the pilot operated compound relief valve
(16) it is connect with fuel tank (1).
2. the main top hydraulic system of a kind of jacking construction according to claim 1, which is characterized in that the 3-position 4-way is electro-hydraulic
The Median Function of reversal valve (18) is O-shaped.
3. the main top hydraulic system of a kind of jacking construction according to claim 1, which is characterized in that the electromagnetic relief valve
It (15) is open type.
4. the main top hydraulic system of a kind of jacking construction according to claim 1, which is characterized in that the electromagnetic relief valve
(15) electromagnet in is associated with the electromagnet in the 3-position 4-way electro-hydraulic reversing valve (18) by electrical control.
5. the main top hydraulic system of a kind of jacking construction according to claim 1, which is characterized in that the 3-position 4-way is electro-hydraulic
Reversal valve (18) and electromagnetic relief valve (15) junction are equipped with pressure gauge (17).
6. the main top hydraulic system of a kind of jacking construction according to claim 1, which is characterized in that the hydraulic cylinder (21)
On shut-off valve (20) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272658.8U CN208634508U (en) | 2018-08-08 | 2018-08-08 | A kind of main top hydraulic system of jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272658.8U CN208634508U (en) | 2018-08-08 | 2018-08-08 | A kind of main top hydraulic system of jacking construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208634508U true CN208634508U (en) | 2019-03-22 |
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ID=65740830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821272658.8U Active CN208634508U (en) | 2018-08-08 | 2018-08-08 | A kind of main top hydraulic system of jacking construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208634508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454470A (en) * | 2019-08-20 | 2019-11-15 | 中航飞机起落架有限责任公司 | The central hydraulic source shared based on more hydraulic terminal device networkings and its hydraulic configuration method |
| CN111997946A (en) * | 2020-08-26 | 2020-11-27 | 广东韶钢松山股份有限公司 | Hydraulic combined system of parallel control actuating mechanism of double oil stations |
-
2018
- 2018-08-08 CN CN201821272658.8U patent/CN208634508U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454470A (en) * | 2019-08-20 | 2019-11-15 | 中航飞机起落架有限责任公司 | The central hydraulic source shared based on more hydraulic terminal device networkings and its hydraulic configuration method |
| CN111997946A (en) * | 2020-08-26 | 2020-11-27 | 广东韶钢松山股份有限公司 | Hydraulic combined system of parallel control actuating mechanism of double oil stations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 232000 Shangyao Town Industrial Zone, Datong District, Huainan City, Anhui Province Patentee after: Anhui tangxing Equipment Technology Co.,Ltd. Address before: 232009 Shangyao Town Industrial Zone, Datong District, Huainan City, Anhui Province Patentee before: ANHUI TANGXING MACHINERY Co.,Ltd. |
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| CP03 | Change of name, title or address |