CN203702711U - Hydraulic hoist system and engineering machinery - Google Patents
Hydraulic hoist system and engineering machinery Download PDFInfo
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- CN203702711U CN203702711U CN201320881313.3U CN201320881313U CN203702711U CN 203702711 U CN203702711 U CN 203702711U CN 201320881313 U CN201320881313 U CN 201320881313U CN 203702711 U CN203702711 U CN 203702711U
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- 239000003921 oil Substances 0.000 claims description 98
- 239000000945 filler Substances 0.000 claims description 12
- 238000005336 cracking Methods 0.000 claims description 9
- 239000010705 motor oil Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The utility model provides a hydraulic hoist system and engineering machinery, wherein the hydraulic hoist system comprises a hydraulic pump, a hoist motor and a control valve group, the control valve group comprises a reversing valve, a balance valve, a hydraulic switch valve, a first and a second sequence valves and a permanent flow valve, the balance valve is connected on an oil circuit in series, the oil circuit is arranged between the reversing valve and the hydraulic motor, a control oil port of the balance valve is communicated with a B port of the hydraulic motor, the first and the second sequence valves are orderly connected in series, an oil inlet and an oil outlet of the hydraulic switch valve are respectively communicated with two work oil ports of the reversing valve, and a pilot oil circuit of the hydraulic switch valve is communicated with an oil circuit which is arranged between the first and the second sequence valves. The hydraulic hoist system is only provided with a solenoid valve, and needs to be controlled by electricity when needing to be downwardly placed to maintain, thereby being high in automatic control ability on the whole and less in power consumption, and effectively preventing the problems that the hydraulic hoist system is limited in work time and can not work for long time because a mass of electric energy of an accumulator of a rotary platform is consumed.
Description
Technical field
The utility model relates to hydraulics field, particularly a kind of hydraulic pressure hoisting system and engineering machinery.
Background technique
In piling machinery, at the bottom of expansion subdrilling machine is mainly used in a hole expansion.Expand subdrilling machine and be conventionally made up of several large parts such as main frame, drilling rod, unit head, swivel gear, expansion subdrilling buckets, wherein swivel gear is also referred to as revolving dial.Revolving dial need be controlled expanding subdrilling bucket in the time of work, therefore, at revolving dial, four groups of hoisting mechanisms (two oil pipes, signal cable and sounding wires), solenoid valve, sounding gear, wireless base station apparatus etc. is installed.Because the electric energy of revolving dial is substantially by storage battery power supply, therefore, if will expand the reliable and stable operation of subdrilling machine, can carry out at four groups of elevators on the basis of good permanent tension force control, also need the system can energy saving.
And existing expansion subdrilling machine, adopt on the one hand more employing electromagnetic valve, solenoid valve carries on elevator, passive drop-down, maintenance all needs corresponding solenoid valve action in sending pipe, although control simply, also can consume in a large number the electric energy of revolving dial storage battery; On the other hand, the employing open system design of the hoisting system of existing expansion subdrilling machine, because the factor such as system shock, length of pipe causes system just mutually poor, and then causes hydraulic control valve often to occur the not situation of return; Also have on the one hand, existing expansion subdrilling machine does not have good fuel feeding off-load measure, and when elevator is passive while transferring, the hydraulic oil of oil pump output can only flow back to fuel tank by relief valve, thereby causes system heat producing losses larger.
For above narrow limitation or deficiency, need to solve following problem:
(1) how to reduce and even cancel solenoid valve and participate in just realizing main operating mode and automatically controlling, and then avoid a large amount of battery consumption electric energy to cause the operating time limited, cannot work long hours, or for ensureing that normal work installs a large amount of storage batteries additional, increase platform weight;
(2) how to provide good fuel feeding unloading function, make system heat producing losses little, energy-conserving and environment-protective;
(3) how to discharge and change system shock into, make system control more reliable.
Model utility content
In view of this, the utility model is intended to propose a kind of hydraulic pressure hoisting system and engineering machinery, to be the object that realization minimizing solenoid valve participates in controlling the automatic control that just can realize the main operating mode of hydraulic pressure hoisting system.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the present embodiment discloses a kind of hydraulic pressure hoisting system, comprise oil hydraulic pump, hoist motor and control valve group, described control valve group comprises selector valve for controlling described hoist motor clockwise and anticlockwise, for the equilibrium valve of oil hydraulic motor pressurize, for the hydraulic-controlled switch valve of off-load, for controlling the first order that described hydraulic-controlled switch valve opens and closes and the second sequence valve and the first permanent-flow valve for described hydraulic-controlled switch valve guide oil circuit draining, described equilibrium valve is connected on described selector valve to the oil circuit between described oil hydraulic motor A mouth, the control port of described equilibrium valve is communicated with the B mouth of described oil hydraulic motor, described the first sequence valve and the second sequence valve are sequentially connected, and the filler opening of described the first sequence valve is communicated with the A mouth of described oil hydraulic motor, the oil outlet of described the second sequence valve is communicated with the B mouth of described oil hydraulic motor, the filler opening of described hydraulic-controlled switch valve and oil outlet are communicated with two actuator ports of described selector valve respectively, guide's oil circuit of described hydraulic-controlled switch valve is communicated with the oil circuit between the first sequence valve and the second sequence valve.
Further, be also provided with the second permanent-flow valve for stable hydraulic motor rotary speed at the B of described oil hydraulic motor oil port.
Further, described hydraulic pressure hoisting system also comprises two safety overflow valves, the filler opening of one of them safety overflow valve is communicated with the actuator port A of described selector valve, oil outlet is communicated with the actuator port B of described selector valve, the filler opening of another safety overflow valve is communicated with the actuator port B of described selector valve, and oil outlet is communicated with the actuator port A of described selector valve.
Further, on the oil return circuit of described selector valve, be also provided with back pressure valve.
Further, the breakout pressure of described the first sequence valve is higher than the breakout pressure of described the second sequence valve, and the breakout pressure of described the second sequence valve is higher than the cracking pressure of described hydraulic-controlled switch valve.
Further, described hydraulic-controlled switch valve is two-position two-way hydraulic control valve.
Further, described selector valve is two-position four-way solenoid directional control valve.
Further, described oil hydraulic motor is provided with four, and described four oil hydraulic motors are parallel with one another, and the B mouth of each oil hydraulic motor is provided with the second permanent-flow valve for stable hydraulic motor rotary speed.
On the other hand, the present embodiment also discloses a kind of engineering machinery, and described engineering machinery is provided with the hydraulic pressure hoisting system described in as above any one.
Further, described engineering machinery is for expanding subdrilling machine.
With respect to prior art, the utlity model has following advantage:
1, hydraulic pressure hoisting system described in the utility model only has a solenoid valve, and this solenoid valve does not all participate in system control in the time of elevator active lifting and passive transferring, only need to initiatively transfer Shi get electricity in maintenance participates in controlling, thereby the automatic control ability of whole system is higher, and power consumption is less, the battery power of effectively having avoided a large amount of consumption to hold revolving dial causes the problem that the operating time is limited, cannot work long hours, or has avoided as ensureing that normal work installs a large amount of storage batteries additional, increases the problem of platform weight.
2, hydraulic pressure hoisting system described in the utility model is provided with the hydraulic-controlled switch valve for off-load, and good fuel feeding unloading function can be provided, and makes system heat producing losses little, energy-conserving and environment-protective.
3, hydraulic pressure hoisting system described in the utility model is closed type hydraulic system, is also provided with two sequence valves of series connection, can not only effectively discharge and change system shock into, and system control is more reliable.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the principle schematic of the control valve group of the hydraulic pressure hoisting system described in the utility model embodiment.
Description of reference numerals:
1-back pressure valve, 2-selector valve, 3-safety overflow valve, 4-the second sequence valve, 5-the second permanent-flow valve, 6-the first sequence valve, 7-equilibrium valve, 8-hydraulic-controlled switch valve, 9-the first permanent-flow valve.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The present embodiment discloses a kind of hydraulic pressure hoisting system, comprise oil hydraulic pump, hoist motor and control valve group, Fig. 1 is the principle schematic of this control valve, as shown in FIG., this control valve group comprise selector valve 2 for controlling hoist motor clockwise and anticlockwise, for the equilibrium valve 7 of oil hydraulic motor pressurize, for the hydraulic-controlled switch valve 8 of off-load, for controlling the first order that hydraulic-controlled switch valve 8 opens and closes and the second sequence valve 4 and the first permanent-flow valve 9 for hydraulic-controlled switch valve 8 guide's oil circuit drainings, equilibrium valve 7 is connected on selector valve 2 to the oil circuit between oil hydraulic motor A mouth, and the control port of this equilibrium valve 7 is communicated with the B mouth of oil hydraulic motor, the first sequence valve 6 and the second sequence valve 4 are sequentially connected, and the cracking pressure of the first sequence valve 6 is greater than the cracking pressure of the second sequence valve 4, the filler opening of this first sequence valve 6 is communicated with the A mouth of oil hydraulic motor, the oil outlet of the second sequence valve 4 is communicated with the B mouth of oil hydraulic motor, the filler opening of hydraulic-controlled switch valve 8 and oil outlet are communicated with two actuator ports of selector valve 2 respectively, guide's oil circuit of hydraulic-controlled switch valve 8 is communicated with the oil circuit between the first sequence valve 6 and the second sequence valve 4.The B oil port of oil hydraulic motor is also provided with the second permanent-flow valve 5 for stable hydraulic motor rotary speed.Also comprise two safety overflow valves 3, the filler opening of one of them safety overflow valve 3 is communicated with the actuator port A of selector valve 2, oil outlet is communicated with the actuator port B of selector valve 2, the filler opening of another safety overflow valve 3 is communicated with the actuator port B of selector valve 2, and oil outlet is communicated with the actuator port A of selector valve 2.
In the present embodiment, this oil hydraulic motor is provided with four, four oil hydraulic motors are parallel with one another, and the B mouth of each oil hydraulic motor is provided with the second permanent-flow valve 5 for stable hydraulic motor rotary speed, elevator is passive while transferring, in order to prevent that these four oil hydraulic motors from being inhaled sky, on the oil return circuit of selector valve 2, be also provided with back pressure valve 1.This hydraulic-controlled switch valve 8 is that this selector valve 2 of two-position two-way hydraulic control valve is two-position four-way solenoid directional control valve 2.
Hydraulic pressure hoisting system described in the present embodiment comprise following several operating mode:
(1) hoisting state
Hydraulic oil enters oil hydraulic motor by the A mouth of oil hydraulic motor after entering the actuator port A of selector valve 2 and equilibrium valve 7 by the P mouth of oil hydraulic pump, selector valve 2, driving oil hydraulic motor rotates, it is hoisting, flow back to oil hydraulic pump from the B mouth of oil hydraulic motor, the second permanent-flow valve 5, the actuator port B of selector valve 2, the oil return inlet T of selector valve 2 again, the application of this second permanent-flow valve 5, can ensure motor rotary speed substantially constant.
(2) elevator stops packing state
After elevator stops, oil hydraulic motor stall, hydraulic oil is arrived A mouth first sequence valve 6 of oil hydraulic motor after selector valve 2, equilibrium valve 7 by oil hydraulic pump, make elevator keep tensioning state.Because the setting pressure of safety overflow valve 3 is higher than the first sequence valve 6, so the first sequence valve 6 can be opened in the time of pressurize, the hydraulic oil that arrives the first sequence valve 6 is flowed out, simultaneously, because the oil outlet place of the first sequence valve 6 is in series with the second sequence valve 4, the breakout pressure of this second sequence valve 4 is higher than the cracking pressure of hydraulic-controlled switch valve 8, and the hydraulic oil that therefore the first sequence valve 6 flows out can also keep certain pressure, open thereby control hydraulic-controlled switch valve 8, make oil hydraulic pump off-load.After oil hydraulic pump off-load, tensioning pressure reduces, arrive the hydraulic fluid pressure of the first sequence valve 6 lower than its cracking pressure, the first sequence valve 6 cuts out, and hydraulic-controlled switch valve 8 releases the hydraulic oil of guide's oil circuit fast by the first permanent-flow valve 9, and then hydraulic-controlled switch valve 8 is disconnected, stop oil hydraulic pump off-load, oil hydraulic pump starts the A confession oil pressurize to oil hydraulic motor, when after the cracking pressure of pressure higher than sequence valve, repeat above-mentioned steps, and so forth.
(3) elevator is left behind and is put state
Elevator is passive while transferring, the passive reversion of oil hydraulic motor, there will be the state of pump, be that oil hydraulic motor is from the oil suction of B mouth, A mouth force feed, oppositely obstructed because of equilibrium valve 7, so the high pressure liquid force feed of oil hydraulic motor A mouth can sequentially be opened the B mouth that the first sequence valve 6 and the second sequence valve 4 enter into oil hydraulic motor, oil hydraulic motor is carried out to repairing.Do not inhaled sky in order to ensure oil hydraulic motor oil suction one side, on the oil return circuit of selector valve 2, be also provided with back pressure valve 1, to keep certain being pressed of oil hydraulic motor oil suction one side.
The cracking pressure of cause the first sequence valve 6 is higher than the cracking pressure of the second sequence valve 4, so on the oil circuit between two sequence valves, meeting keeps certain pressure, and then opens by guide's oil circuit control pilot operated directional control valve 2, is oil hydraulic pump off-load.
(4) tubulose state is put in maintenance
This state is only for maintenance, now selector valve 2 needs power supply commutation, after commutation, hydraulic oil arrives the B mouth of oil hydraulic motor and the control port of equilibrium valve 7 by the oil outlet of oil hydraulic pump, the P mouth of selector valve 2, the actuator port B of selector valve 2, drive motor reverses and opens equilibrium valve 7, and oil return is flowed back to oil hydraulic pump from the A mouth of oil hydraulic motor through the actuator port A of equilibrium valve 7, selector valve 2, the oil return inlet T of selector valve 2.
Hydraulic pressure hoisting system described in the present embodiment has following advantage:
1, the hydraulic pressure hoisting system of the present embodiment only has a solenoid valve, and this solenoid valve does not all participate in system control in the time of elevator active lifting and passive transferring, only need to initiatively transfer Shi get electricity in maintenance participates in controlling, thereby the automatic control ability of whole system is higher, and power consumption is less, effectively avoid the storage battery electric energy of a large amount of consumption revolving dials to cause the problem that the operating time is limited, cannot work long hours, or avoided as ensureing that normal work installs a large amount of storage batteries additional, increases the problem of platform weight.
2, the hydraulic pressure hoisting system of the present embodiment is provided with the hydraulic-controlled switch valve 8 for off-load, and good fuel feeding unloading function can be provided, and makes system heat producing losses little, energy-conserving and environment-protective.
3, the hydraulic pressure hoisting system of the present embodiment is closed type hydraulic system, is also provided with two sequence valves of series connection, can not only effectively discharge and change system shock into, and system control is more reliable.
Except above-mentioned hydraulic pressure hoisting system, the utility model embodiment also provides a kind of engineering machinery that is provided with hydraulic pressure hoisting system, and as expanded subdrilling machine etc., the structure of other each several part of this project machinery, with reference to prior art, repeats no more herein.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a hydraulic pressure hoisting system, comprise oil hydraulic pump, hoist motor and control valve group, it is characterized in that, described control valve group comprises selector valve (2) for controlling described hoist motor clockwise and anticlockwise, for the equilibrium valve (7) of oil hydraulic motor pressurize, for the hydraulic-controlled switch valve (8) of off-load, for controlling the first order that described hydraulic-controlled switch valve (8) opens and closes and the second sequence valve (4) and the first permanent-flow valve (9) for described hydraulic-controlled switch valve (8) guide's oil circuit draining, described equilibrium valve (7) is connected on described selector valve (2) to the oil circuit between described oil hydraulic motor A mouth, the control port of described equilibrium valve (7) is communicated with the B mouth of described oil hydraulic motor, described the first sequence valve (6) and the second sequence valve (4) are sequentially connected, and the filler opening of described the first sequence valve (6) is communicated with the A mouth of described oil hydraulic motor, the oil outlet of described the second sequence valve (4) is communicated with the B mouth of described oil hydraulic motor, the filler opening of described hydraulic-controlled switch valve (8) and oil outlet are communicated with two actuator ports of described selector valve (2) respectively, guide's oil circuit of described hydraulic-controlled switch valve (8) is communicated with the oil circuit between the first sequence valve (6) and the second sequence valve (4).
2. hydraulic pressure hoisting system according to claim 1, is characterized in that, is also provided with the second permanent-flow valve (5) for stable hydraulic motor rotary speed at the B of described oil hydraulic motor oil port.
3. hydraulic pressure hoisting system according to claim 2, it is characterized in that, also comprise two safety overflow valves (3), the filler opening of one of them safety overflow valve (3) is communicated with the actuator port A of described selector valve (2), oil outlet is communicated with the actuator port B of described selector valve (2), the filler opening of another safety overflow valve (3) is communicated with the actuator port B of described selector valve (2), and oil outlet is communicated with the actuator port A of described selector valve (2).
4. hydraulic pressure hoisting system according to claim 3, is characterized in that, is also provided with back pressure valve (1) on the oil return circuit of described selector valve (2).
5. hydraulic pressure hoisting system according to claim 4, it is characterized in that, the breakout pressure of described the first sequence valve (6) is higher than the breakout pressure of described the second sequence valve (4), and the breakout pressure of described the second sequence valve (4) is higher than the cracking pressure of described hydraulic-controlled switch valve (8).
6. hydraulic pressure hoisting system according to claim 5, is characterized in that, described hydraulic-controlled switch valve (8) is two-position two-way hydraulic control valve.
7. hydraulic pressure hoisting system according to claim 6, is characterized in that, described selector valve (2) is two-position four-way solenoid directional control valve.
8. according to the hydraulic pressure hoisting system described in claim 1 to 7 any one, it is characterized in that, described oil hydraulic motor is provided with four, and described four oil hydraulic motors are parallel with one another, and the B mouth of each oil hydraulic motor is provided with the second permanent-flow valve (5) for stable hydraulic motor rotary speed.
9. an engineering machinery, is characterized in that, described engineering machinery is provided with the hydraulic pressure hoisting system as described in claim 1 to 8 any one.
10. engineering machinery according to claim 9, is characterized in that, described engineering machinery is for expanding subdrilling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881313.3U CN203702711U (en) | 2013-12-30 | 2013-12-30 | Hydraulic hoist system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881313.3U CN203702711U (en) | 2013-12-30 | 2013-12-30 | Hydraulic hoist system and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702711U true CN203702711U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320881313.3U Expired - Lifetime CN203702711U (en) | 2013-12-30 | 2013-12-30 | Hydraulic hoist system and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702711U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566531A (en) * | 2019-10-16 | 2019-12-13 | 湖南鸿辉科技有限公司 | Hydraulic control reversing valve for controlling multiple oil ways |
| CN117329206A (en) * | 2023-09-26 | 2024-01-02 | 陕煤集团神南产业发展有限公司 | Novel closed walking speed stabilizing device |
| CN117905738A (en) * | 2023-07-06 | 2024-04-19 | 新疆新研牧神科技有限公司 | Sequential starting hydraulic system and harvester |
-
2013
- 2013-12-30 CN CN201320881313.3U patent/CN203702711U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566531A (en) * | 2019-10-16 | 2019-12-13 | 湖南鸿辉科技有限公司 | Hydraulic control reversing valve for controlling multiple oil ways |
| CN110566531B (en) * | 2019-10-16 | 2024-03-15 | 湖南鸿辉科技有限公司 | Hydraulic control reversing valve for controlling multiple oil ways |
| CN117905738A (en) * | 2023-07-06 | 2024-04-19 | 新疆新研牧神科技有限公司 | Sequential starting hydraulic system and harvester |
| CN117329206A (en) * | 2023-09-26 | 2024-01-02 | 陕煤集团神南产业发展有限公司 | Novel closed walking speed stabilizing device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |