CN203333196U - Tower crane hydraulic jacking device - Google Patents
Tower crane hydraulic jacking device Download PDFInfo
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- CN203333196U CN203333196U CN2013204171363U CN201320417136U CN203333196U CN 203333196 U CN203333196 U CN 203333196U CN 2013204171363 U CN2013204171363 U CN 2013204171363U CN 201320417136 U CN201320417136 U CN 201320417136U CN 203333196 U CN203333196 U CN 203333196U
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- jacking
- motor
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Abstract
The utility model discloses a tower crane hydraulic jacking device which comprises a hydraulic station and a hydraulic oil cylinder. The hydraulic station is provided with a hydraulic oil tank, a motor, a hydraulic pump and a hydraulic reversing valve, wherein an oil outlet pipeline between the hydraulic pump and the hydraulic reversing valve is provided with a high-pressure overflow valve, a jacking oil inlet pipeline and a jacking oil return pipeline are connected between the hydraulic reversing valve and the hydraulic oil cylinder, the jacking oil inlet pipeline is provided with a speed regulating valve which is provided with a one-way valve, and the jacking oil return pipeline is provided with a low-pressure overflow valve. The bottom of the hydraulic oil tank is provided with a valve, an outlet of the valve is connected with a condensate water container, and the motor and the hydraulic pump are positioned at the lower end of the hydraulic oil tank. When the tower crane hydraulic jacking device descends, the low-pressure overflow valve protects the tower crane hydraulic jacking device and plays a good role in safety protection, in addition, the hydraulic oil tank is arranged above the motor, and therefore the motor is stable in operation and convenient to maintain. The valve is installed at the bottom of the hydraulic oil tank, and condensate water in the hydraulic oil tank can not gather too much and can not affect use of a hydraulic system.
Description
Technical field
The utility model relates to a kind of tower machine hydraulic jacking device, relates in particular to tower machine hydraulic lifting Hydraulic Station, belongs to tower crane hydraulic efficiency pressure system technical field.
Background technology
Tower machine hydraulic jacking device comprises Hydraulic Station and hydraulic ram, and Hydraulic Station is mainly used in the vehicle for construction tower crane hydraulic jacking system.Hydraulic Station generally is arranged on the raising legs of tower machine, and hydraulic ram one end is fixed on raising legs, and the other end is supported on standard knot.The jacking of existing tower machine jacking Hydraulic Station and to descend be all to have carried out the safety guard-safeguard effect with a by pass valve, but during decline due to the structure own wt, so large pressure while not needing jacking, too large pressure protect easily goes out safety misadventure.Simultaneously, existing tower machine Hydraulic Station is all upper vertical machine, particularly high-power upper vertical machine operation shakiness and inconvenient maintenance.In addition, hydraulic reservoir in use there will be condensed water, and the time one is long, and the condensed water many a little makes a mickle in hydraulic reservoir can affect the use of hydraulic efficiency pressure system.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of reliability high, the tower machine hydraulic jacking device that safety is good.
Technical solution of the present utility model is:
A kind of tower machine hydraulic jacking device, comprise Hydraulic Station and hydraulic ram, Hydraulic Station is provided with hydraulic reservoir, motor, Hydraulic Pump and hydraulic directional control valve, fuel-displaced pipeline between Hydraulic Pump and hydraulic directional control valve is provided with high-pressure overflow valve, be connected with jacking chargine line and jacking oil return line between hydraulic directional control valve and hydraulic ram, the jacking chargine line is provided with governor valve, and governor valve is provided with check valve, and the jacking oil return line is provided with low pressure relief valve.
The bottom of above-mentioned hydraulic reservoir is provided with valve, and the outlet of valve is connected to condensed water container.
Above-mentioned motor is positioned at the bottom of hydraulic reservoir.
Above-mentioned valve is ball valve.
Technique effect of the present utility model is: the utility model is provided with low pressure relief valve at the jacking oil return line; increased the low pressure relief valve while descending; the high-pressure overflow valve protection is arranged while making jacking; the low pressure relief valve protection is arranged during decline; just under lower pressure, work when tower machine jacking apparatus descends like this, played good safety guard-safeguard effect.The utility model motor is positioned at the bottom of hydraulic reservoir, and motor is pressed horizontal placement, and hydraulic reservoir is upper, motor under, motor operates steadily and is easy to maintenance like this.The utility model is at hydraulic reservoir bottom mounted valve, condensed water container is equipped with in the outlet of valve, gather too much condensed water bottom hydraulic reservoir in use procedure and can put into condensed water container by valve, can not make like this condensed water in hydraulic reservoir gather too much, can not affect the use of hydraulic efficiency pressure system.Therefore, the utility model is rational in infrastructure, and reliability is high, and safety is good.
The accompanying drawing explanation
1, Fig. 1 is the utility model constructional drawing.
2, Fig. 2 is the utility model hydraulic system principle figure.
In figure: 1, hydraulic reservoir, 2, the liquid level heat indicator, 3, filter, 4, Hydraulic Pump, 5, motor, 6, high-pressure overflow valve, 7, the jacking high pressure gauge, 8, hydraulic directional control valve, 9, low pressure relief valve, 10, governor valve, 11, the decline low-pressure meter, 12, cylinder tube, 13, hydraulic lock, 14, Hydraulic Station, 15, hydraulic ram, 16, valve, 17, valve handle, 18, condensed water container, 19, electromagnetic starter, 20, fuel-displaced pipeline, 21, the jacking chargine line, 22, the jacking oil return line.
The specific embodiment
Below in conjunction with drawings and Examples, describe in detail.
As depicted in figs. 1 and 2, a kind of tower machine of the utility model hydraulic jacking device, comprise Hydraulic Station 14 and hydraulic ram 15, Hydraulic Station 14 is provided with hydraulic reservoir 1, motor 5, Hydraulic Pump 4 and hydraulic directional control valve 8, fuel-displaced pipeline 20 between Hydraulic Pump 4 and hydraulic directional control valve 8 is provided with high-pressure overflow valve 6, be connected with jacking chargine line 21 and jacking oil return line 22 between hydraulic directional control valve 8 and hydraulic ram 15, jacking chargine line 21 is provided with governor valve 10, governor valve 10 is provided with check valve, and jacking oil return line 22 is provided with low pressure relief valve 9.The bottom of described hydraulic reservoir 1 is provided with valve 16, and the liquid outlet of valve 16 is connected to condensed water container 18.Motor 5 and Hydraulic Pump 4 are positioned at the bottom of hydraulic reservoir 1.Valve 16 is ball valve.
The utility model hydraulic ram 15 adopts piston rod to fix, the mode that cylinder tube 12 moves.High-pressure overflow valve 6 plays the highest hydraulic pressure overload protective effect in hydraulic efficiency pressure system, and low pressure relief valve 9 makes the low-pressure state of pressure in setting when descending, and hydraulic lock 13 is used for preventing falling voluntarily because of deadweight, avoids occurring safety misadventure.When hydraulic directional control valve 8 is positioned at midway location (free state): the hydraulic oil filtered through filter 3 directly returns hydraulic reservoir 1 through hydraulic directional control valve 8, reaches zero load starting.When hydraulic directional control valve 8 is positioned at left position (push mode): the hydraulic oil filtered through filter 3 is through hydraulic directional control valve 8, check valve through governor valve 10 bypass, enter again the rodless cavity of hydraulic ram 15 through hydraulic lock 13, jacking is worked, and hydraulic lock 13, the hydraulic directional control valve 8 of the rod chamber hydraulic oil of hydraulic ram 15 through opening got back to hydraulic reservoir 1.When hydraulic directional control valve 8 is positioned at right position (tension state): the hydraulic oil filtered through filter 3 is through hydraulic directional control valve 8, enter the rod chamber of hydraulic ram 15 through hydraulic lock 13, play the decline effect, the hydraulic lock 13 of the rodless cavity hydraulic oil of hydraulic ram 15 through opening, pass through again governor valve 10 throttling governings, through hydraulic directional control valve 8, get back to hydraulic reservoir 1.
The unspecified content of the utility model is prior art, and those skilled in the art can obtain inspiration from the present embodiment and prior art, are out of shape and obtain other embodiment.Therefore, protection domain of the present utility model should be determined according to the protection domain of claim.
Claims (4)
1. a tower machine hydraulic jacking device, comprise Hydraulic Station (14) and hydraulic ram (15), Hydraulic Station (14) is provided with hydraulic reservoir (1), motor (5), Hydraulic Pump (4) and hydraulic directional control valve (8), fuel-displaced pipeline (20) between Hydraulic Pump (4) and hydraulic directional control valve (8) is provided with high-pressure overflow valve (6), be connected with jacking chargine line (21) and jacking oil return line (22) between hydraulic directional control valve (8) and hydraulic ram (15), jacking chargine line (21) is provided with governor valve (10), governor valve (10) is provided with check valve, it is characterized in that: jacking oil return line (22) is provided with low pressure relief valve (9).
2. a kind of tower machine hydraulic jacking device according to claim 1, it is characterized in that: the bottom of described hydraulic reservoir (1) is provided with valve (16), and the outlet of valve (16) is connected to condensed water container (18).
3. according to the described a kind of tower machine hydraulic jacking device of claim 1 or 2, it is characterized in that: motor (5) and Hydraulic Pump (4) are positioned at the lower end of hydraulic reservoir (1).
4. a kind of tower machine hydraulic jacking device according to claim 3, it is characterized in that: valve (16) is ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204171363U CN203333196U (en) | 2013-07-05 | 2013-07-05 | Tower crane hydraulic jacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204171363U CN203333196U (en) | 2013-07-05 | 2013-07-05 | Tower crane hydraulic jacking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203333196U true CN203333196U (en) | 2013-12-11 |
Family
ID=49701887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204171363U Expired - Fee Related CN203333196U (en) | 2013-07-05 | 2013-07-05 | Tower crane hydraulic jacking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203333196U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994216A (en) * | 2014-05-14 | 2014-08-20 | 江苏海鹏特种车辆有限公司 | Hydraulic control system for manual steering hydraulic power tractor |
| CN104088827A (en) * | 2014-07-17 | 2014-10-08 | 常州爱普超高压液压系统有限公司 | Hydraulic overturning device for pontoon bridge gangplank |
| CN105298954A (en) * | 2015-11-25 | 2016-02-03 | 上海电气液压气动有限公司 | Hydraulic station system |
| CN105502234A (en) * | 2015-09-17 | 2016-04-20 | 浙江大学宁波理工学院 | Speed-adjustable high-thrust hydraulic lifting table |
| CN105800488A (en) * | 2016-04-21 | 2016-07-27 | 兴化市通舟船舶设备有限公司 | High-efficiency hydraulic device |
| CN108019387A (en) * | 2017-12-01 | 2018-05-11 | 三重型装备有限公司 | One kind control oil circuit, spooling system and development machine |
-
2013
- 2013-07-05 CN CN2013204171363U patent/CN203333196U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994216A (en) * | 2014-05-14 | 2014-08-20 | 江苏海鹏特种车辆有限公司 | Hydraulic control system for manual steering hydraulic power tractor |
| CN104088827A (en) * | 2014-07-17 | 2014-10-08 | 常州爱普超高压液压系统有限公司 | Hydraulic overturning device for pontoon bridge gangplank |
| CN104088827B (en) * | 2014-07-17 | 2016-04-06 | 靖江市维益知识产权服务有限公司 | Bridge of boats springboard hydraulic pressure turn-over device |
| CN105502234A (en) * | 2015-09-17 | 2016-04-20 | 浙江大学宁波理工学院 | Speed-adjustable high-thrust hydraulic lifting table |
| CN105502234B (en) * | 2015-09-17 | 2017-10-20 | 浙江大学宁波理工学院 | Adjustable speed high thrust hydraulic elevator platform |
| CN105298954A (en) * | 2015-11-25 | 2016-02-03 | 上海电气液压气动有限公司 | Hydraulic station system |
| CN105800488A (en) * | 2016-04-21 | 2016-07-27 | 兴化市通舟船舶设备有限公司 | High-efficiency hydraulic device |
| CN105800488B (en) * | 2016-04-21 | 2018-04-24 | 兴化市通舟船舶设备有限公司 | A kind of efficient hydraulic device |
| CN108019387A (en) * | 2017-12-01 | 2018-05-11 | 三重型装备有限公司 | One kind control oil circuit, spooling system and development machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150705 |
|
| EXPY | Termination of patent right or utility model |