CN201971593U - Hydraulic jacking system for large power equipment - Google Patents
Hydraulic jacking system for large power equipment Download PDFInfo
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- CN201971593U CN201971593U CN 201120002838 CN201120002838U CN201971593U CN 201971593 U CN201971593 U CN 201971593U CN 201120002838 CN201120002838 CN 201120002838 CN 201120002838 U CN201120002838 U CN 201120002838U CN 201971593 U CN201971593 U CN 201971593U
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- hydraulic
- valve
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- way reversing
- hydraulic pump
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Abstract
A hydraulic jacking system for large power equipment comprises an oil tank, a hydraulic pump, a three-position four-way reversing valve, a pilot-operated check valve, at least two two-position four-way reversing valves and hydraulic cylinders corresponding to the two-position four-way reversing valves, the inlet and the outlet of each hydraulic cylinder are respectively connected with the outlet and the inlet of the corresponding two-position four-way reversing valve, the oil tank is connected with one inlet of the three-position four-way reversing valve through the hydraulic pump, one outlet of the three-position four-way reversing valve is connected with another inlets of the two-position four-way reversing valves, another outlets of the two-position four-way reversing valves are connected with another inlet of the three-position four-way reversing valve through the pilot-operated check valve, and another outlet of the three-position four-way reversing valve is connected with the oil tank through a return oil tube. The hydraulic jacking system adopts a one-drive-multiple mode to carry out operation, is easy to operate, and is highly synchronous. Moreover, the synchronicity of jacking is fully automatically controlled by the hydraulic system, consequently, artificial delay and misoperation are prevented, the safety performance is greatly enhanced, and the working efficiency is greatly increased.
Description
[technical field]
The utility model relates to hydraulic efficiency pressure system, relates in particular to a kind of hydraulic lifting system of large scale electrical power unit.
[background technology]
Along with the develop rapidly of national economy, electricity needs is vigorous day by day, the expansion that power construction project in various places is also just like a raging fire, and voltage class is firmly soaring, and construction scale is increasing.In the construction project such as power plant, substation such as also seem especially outstanding of the loading and unloading of large scale electrical power units such as stator, voltage transformer and problem in place thereupon.
In the loading and unloading and process in place of large scale electrical power unit, generally to use the operation simultaneously of four hydraulic jacks to replace jacking, steady to guarantee its lifting capacity and equipment.It is exactly the thrust size of hydraulic jack to equipment that lifting capacity is reflected on the equipment, and this is relevant with the pressure of the hydraulic power unit that is adopted and the correlation parameter of hydraulic actuating cylinder etc.It is exactly hydraulic jack piston rod emersion and the speed that falls after rise and the net synchronization capability of a plurality of hydraulic actuating cylinders that the stationarity that hoists is reacted on the equipment, and this and the flow of hydraulic power unit, two chamber payload spaces of hydraulic actuating cylinder, the structure of hydraulic circuit etc. are relevant.
At present, what employed hydraulic lifting system adopted is the form of one-to-one, and just a hydraulic jack of a ultrahigh voltage hydraulic pump station control hoisting and land.This system normally adopts two ultrahigh voltage hydraulic pump stations to drive with two hydraulic jacks on one side in the loading and unloading of large scale electrical power unit and process in place and hoists simultaneously, accomplish fluently insurance with sleeper after being raised to certain altitude rising, then with the synchronization of jacking up to two hydraulic jacks of another side of hydraulic oil pipe reconfiguration, accomplishing fluently insurance later on to certain altitude continues the hydraulic oil pipe reconfiguration to hoist to two hydraulic jacks original there again, so repeatedly, rise up to equipment and be raised to required operation height.
In the entire job process, each hydraulic power unit all needs a hydraulic operation hand, and two hydraulic operations are manually done to want consistent in operating process, with the synchronism that guarantees that two hydraulic jacks hoist.Simultaneously, for guarantee on the equipment integral steadily, angle of inclination at the medium-and-large-sized electrical equipment of the process of hoisting can not be excessive, so monolateral two hydraulic jack lifting altitudes can not be too high, this just needs the repeatedly staggered jacking in both sides to reach operation height, this also corresponding number of times that has increased artificial plug hydraulic oil pipe.
[utility model content]
In view of this, the utility model provides the hoisting system of the high large scale electrical power unit of a kind of synchronism that hoists.
A kind of hydraulic lifting system of large scale electrical power unit, comprise fuel tank, Hydraulic Pump, three position four-way directional control valve, hydraulic control one-way valve, at least two two-position four way change valves and with the cooresponding hydraulic ram of described two-position four way change valve, the entrance and exit of described hydraulic ram links to each other with inlet with the outlet of cooresponding described two-position four way change valve respectively, described fuel tank links to each other with an inlet of described three position four-way directional control valve by described Hydraulic Pump, an outlet of described three position four-way directional control valve links to each other with another inlet of described two two-position four way change valves at least, another outlet of described at least two two-position four way change valves links to each other with another inlet by the described three position four-way directional control valve of described hydraulic control one-way valve, and another outlet of described three position four-way directional control valve links to each other with fuel tank by oil return pipe.
Preferably, described hydraulic lifting system comprises by pass valve well, and described by pass valve is communicated with connecting tube and the described oil return pipe between described Hydraulic Pump and the described three position four-way directional control valve.
Preferably, be connected to the pressure gauge of the output hydraulic pressure of the described Hydraulic Pump of control on the connecting tube between described Hydraulic Pump and the described three position four-way directional control valve.
Preferably, be provided with the oil filtration device that filters in the fuel tank between described fuel tank and the described Hydraulic Pump.
Preferably, described Hydraulic Pump is connected to the electrical motor that power is provided for described Hydraulic Pump.
Preferably, described two-position four way change valve and with the number of the cooresponding hydraulic ram of described two-position four way change valve be four.
Hydraulic lifting of the present utility model system takes one to drag many modes to carry out operation, and simple to operate, synchronism is good.And the synchronism that hoists is fully by the hydraulic efficiency pressure system automatic guidance, and artificial time-delay and maloperation etc. have improved safety performance and work efficiency greatly before having avoided.
[description of drawings]
The scheme drawing of the hydraulic lifting system that Fig. 1 sets for preferred embodiment large-scale power of the present utility model.
[specific embodiment]
In order to understand the utility model better, be described in detail below with reference to instantiation and accompanying drawing embodiment to utility model.
In order to address the above problem, the utility model provides a kind of synchronism high hydraulic lifting system, only needs a hydraulic operation hand can finish whole operation tasks.
See also Fig. 1, preferred embodiment hydraulic lifting of the present utility model system comprises fuel tank 1, oil return pipe 2, Hydraulic Pump 3, by pass valve 4, three position four-way directional control valve 5, four two-position four way change valves 6, four hydraulic rams 7, hydraulic control one-way valve 8, pressure gauge 9, electrical motor 10 and filters 11.Fuel tank 1 is connected to one of them outlet of three position four-way directional control valve 5 by counter flow pipe 2.Another outlet of three position four-way directional control valve 5 is connected with the inlet of four two-position four way change valves 6.The entrance and exit of hydraulic ram 7 is connected respectively at the entrance and exit of cooresponding two-position four way change valve 6.The cylinder rod of hydraulic ram 7 large scale electrical power unit that hoists.Another outlet of four two-position four way change valves 6 is connected with an inlet of three position four-way directional control valve 5 by hydraulic control one-way valve 8.Another inlet of three position four-way directional control valve 5 is connected with Hydraulic Pump 3.Be connected to pressure gauge 9 on the connecting tube of Hydraulic Pump 3 and three position four-way directional control valve 5, be transported to the hydraulic pressure of three position four-way directional control valve 5 with control by Hydraulic Pump 3.Hydraulic Pump 3 also is connected with oil return pipe 2 by by pass valve 4 with the connecting tube of three position four-way directional control valve 5.Electrical motor 10 drives Hydraulic Pump 3 and extract oil in fuel tank 1.
Oil content in the fuel tank 1 is a two-way, and wherein one the tunnel flows out, and another road flows into.
From fuel tank 1, flowing out in this road, after the oil in the fuel tank 1 filters by filter 11, be transported to three position four-way directional control valve 5 after Hydraulic Pump 3 extractions.Be transported to four hydraulic rams 6 by three position four-way directional control valve 5 through two-position four way change valve 6 again.
In flowing into this road of fuel tank 1, get back to three position four-way directional control valve 5 by two-position four way change valve 6, hydraulic control one-way valve 8 successively by the oil that hydraulic ram 7 flows out.Get back to fuel tank 1 by the oil that three position four-way directional control valve 5 flows out by counter flow pipe 2.In addition, the oil that is transported to three position four-way directional control valve 5 by Hydraulic Pump 3 also can turn back to oil return pipe 2 by by pass valve 4.The oil that turns back to fuel tank 1 can be through being extracted by Hydraulic Pump 3 after filter 11 filtrations once more.
Only need to regulate corresponding change-over valve according to actual conditions by above-mentioned hydraulic lifting system and can take one-to-one to one four the combination in any mode of dragging to carry out operation, simple to operate, synchronism is good.In actual applications, the logarithm of hydraulic ram and two-position four way change valve can increase and decrease according to applicable cases is different, but should be no less than two pairs.
Hydraulic lifting system, this cover system only needs a hydraulic operation hand can finish whole operation tasks, than having saved before two labour powers, and the synchronism that hoists is fully by system's automatic guidance, artificial time-delay and maloperation etc. have improved safety performance and work efficiency greatly before having avoided.Simultaneously, this cover system has been avoided the plug repeatedly of hydraulic oil pipe, has not only saved the time of plug oil pipe, and has reduced the wearing and tearing of oil pipe and quick coupling, also reduce introduced contaminants and entered the probability of hydraulic circuit, thereby guaranteed hydraulic efficiency pressure system good sealing property and stability.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (6)
1. the hydraulic lifting system of a large scale electrical power unit, it is characterized in that: described hydraulic lifting system comprises fuel tank, Hydraulic Pump, three position four-way directional control valve, hydraulic control one-way valve, at least two two-position four way change valves and with the cooresponding hydraulic ram of described two-position four way change valve, the entrance and exit of described hydraulic ram links to each other with inlet with the outlet of cooresponding described two-position four way change valve respectively, described fuel tank links to each other with an inlet of described three position four-way directional control valve by described Hydraulic Pump, an outlet of described three position four-way directional control valve links to each other with another inlet of described two two-position four way change valves at least, another outlet of described at least two two-position four way change valves links to each other with another inlet by the described three position four-way directional control valve of described hydraulic control one-way valve, and another outlet of described three position four-way directional control valve links to each other with fuel tank by oil return pipe.
2. hydraulic lifting according to claim 1 system is characterized in that: described hydraulic lifting system comprises by pass valve well, and described by pass valve is communicated with connecting tube and the described oil return pipe between described Hydraulic Pump and the described three position four-way directional control valve.
3. hydraulic lifting according to claim 2 system is characterized in that: the pressure gauge that is connected to the output hydraulic pressure of the described Hydraulic Pump of control on the connecting tube between described Hydraulic Pump and the described three position four-way directional control valve.
4. according to each described hydraulic lifting system in the claim 1 to 3, it is characterized in that: be provided with the oil filtration device that filters in the fuel tank between described fuel tank and the described Hydraulic Pump.
5. hydraulic lifting according to claim 4 system, it is characterized in that: described Hydraulic Pump is connected to the electrical motor that power is provided for described Hydraulic Pump.
6. hydraulic lifting according to claim 5 system is characterized in that: described two-position four way change valve and with the number of the cooresponding hydraulic ram of described two-position four way change valve be four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120002838 CN201971593U (en) | 2011-01-04 | 2011-01-04 | Hydraulic jacking system for large power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120002838 CN201971593U (en) | 2011-01-04 | 2011-01-04 | Hydraulic jacking system for large power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971593U true CN201971593U (en) | 2011-09-14 |
Family
ID=44576699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120002838 Expired - Lifetime CN201971593U (en) | 2011-01-04 | 2011-01-04 | Hydraulic jacking system for large power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495265A (en) * | 2014-12-19 | 2015-04-08 | 太原重工股份有限公司 | Carrier vehicle and carrier vehicle clamp control system |
| CN106744463A (en) * | 2017-04-06 | 2017-05-31 | 中交天津航道局有限公司 | One kind is dredged marine electric hydrodynamic pressure jack |
-
2011
- 2011-01-04 CN CN 201120002838 patent/CN201971593U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495265A (en) * | 2014-12-19 | 2015-04-08 | 太原重工股份有限公司 | Carrier vehicle and carrier vehicle clamp control system |
| CN106744463A (en) * | 2017-04-06 | 2017-05-31 | 中交天津航道局有限公司 | One kind is dredged marine electric hydrodynamic pressure jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yang Yuansheng 430063 Hubei province Wuhan city Wuchang District Road No. 5 Patentee after: HUBEI ELECTRIC POWER TRANSMISSION & DISTRIBUTION ENGINEERING Co. Address before: Yang Yuansheng 430063 Hubei province Wuhan city Wuchang District Road No. 5 Patentee before: Hubei Electric Power Transmission & Distribution Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121227 Address after: Yang Yuansheng 430063 Hubei province Wuhan city Wuchang District Road No. 5 Patentee after: HUBEI ELECTRIC POWER TRANSMISSION & DISTRIBUTION ENGINEERING Co. Patentee after: State Grid Corporation of China Address before: Yang Yuansheng 430063 Hubei province Wuhan city Wuchang District Road No. 5 Patentee before: HUBEI ELECTRIC POWER TRANSMISSION & DISTRIBUTION ENGINEERING Co. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |