CN103232005A - Hydraulic lifting device having pipeline bursting prevention function - Google Patents
Hydraulic lifting device having pipeline bursting prevention function Download PDFInfo
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- CN103232005A CN103232005A CN201310165662XA CN201310165662A CN103232005A CN 103232005 A CN103232005 A CN 103232005A CN 201310165662X A CN201310165662X A CN 201310165662XA CN 201310165662 A CN201310165662 A CN 201310165662A CN 103232005 A CN103232005 A CN 103232005A
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Abstract
The invention discloses a hydraulic lifting device having a pipeline bursting prevention function. A hydraulic oil tank is communicated with a hydraulic pump through a pipeline, the hydraulic pump is connected with a proportional valve through a pipeline, two oil outlets of a handle valve are connected with an oil inlet of a pipeline bursting prevention safety valve and a hydraulic oil cylinder through pipelines respectively, the first oil outlet of the handle valve is connected with a right oil inlet of the proportional valve, the second oil outlet of the handle valve is connected with a left oil inlet of the proportional valve through a three-way joint, and a hydraulic control port of the pipeline bursting prevention safety valve is connected with the second oil outlet of the handle valve through a three-way joint. By the aid of the hydraulic lifting device, the problem of damages or injuries to human bodies, life, properties and the like caused by the fact that accidents occur easily due to the fact the hydraulic oil cylinder falls quickly due to pressure relief if pipelines burst when a mining machine lifts a heavy object, and the hydraulic lifting device having the pipeline bursting prevention function is simple in structure, convenient to use, stable to lift and high in safety coefficient.
Description
Technical field
The invention belongs to the coal mine machinery technical field of hydraulic, particularly relate to a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline.
Background technology
Hydraulic technique is one of gordian technique that realizes modernized transmission and control, and countries in the world have given very big attention to the development of hydraulic industry, and widespread use and national economy all departments.Hydraulic technique has that power-weight ratio is big, and volume is little, and is simple in structure, the frequency response height, and pressure, flow rate controllability are good, can flexiblely transmit power, easily realize advantages such as straight-line motion, and easily combine with microelectronics, electrical technology, the formation autonomous cruise speed system.But also there are shortcomings such as seepage, maintainability difference simultaneously in the fluid control art.Carry out in the lifting weight operation process at mine equipment at present, when pipeline causes pipelines from bursting owing to reasons such as aging, wearing and tearing, overload, hydraulic ram is because the pressure release meeting hurtles down, and the accident that meets accident is easily caused damage for the person, life, property etc. or injures.
Summary of the invention
In order to solve mining mechanical the execution in the lifting weight operation process in the prior art, when pipeline causes pipelines from bursting owing to reasons such as aging, wearing and tearing, overload, hydraulic ram hurtles down owing to the pressure release meeting, accident easily meets accident, the problem of causing damage or injuring for the person, life, property etc. the invention provides a kind of simple in structure, easy to use, lifting is steady, the hydraulic lifting apparatus with the anti-explosion function of pipeline that safe and reliable coefficient is higher.
In order to address the above problem, the technical solution used in the present invention is:
A kind of hydraulic lifting apparatus with the anti-explosion function of pipeline, comprise hydraulic reservoir and Hydraulic Pump, it is characterized in that: also comprise apportioning valve, the handle valve, pipeline is prevented the explosion safety valve, T-pipe joint and hydraulic ram, described hydraulic reservoir and Hydraulic Pump pass through pipeline connection, described Hydraulic Pump is connected with apportioning valve by pipeline, two oil outlets of described handle valve are connected with hydraulic ram by the anti-explosion safety valve oil inlet of pipeline and pipeline respectively, first oil outlet of described handle valve is connected with the right oil inlet of apportioning valve, second oil outlet of described handle valve is connected with the apportioning valve left oil inleting port by T-pipe joint, and the anti-explosion safety valve hydraulic control mouth of described pipeline is connected with second oil outlet of handle valve by T-pipe joint.
Aforesaid a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline, it is characterized in that: also comprise safety valve, described Hydraulic Pump is connected with apportioning valve by safety valve.
Aforesaid a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline, it is characterized in that: described safety valve return opening is connected with hydraulic reservoir by pipeline.
Aforesaid a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline is characterized in that: the anti-explosion safety valve return opening of described pipeline is connected with hydraulic reservoir by pipeline.
Aforesaid a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline, it is characterized in that: also comprise another T-pipe joint, described safety valve return opening is connected with first joint of T-pipe joint by pipeline, the anti-explosion safety valve return opening of described pipeline is connected with second joint of T-pipe joint by pipeline, and the 3rd joint of described T-pipe joint is connected with hydraulic reservoir by pipeline.
Aforesaid a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline, it is characterized in that: described pipeline adopts hydralic hose.
Aforesaid a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline, it is characterized in that: safety valve is provided with the pressure gauge of measuring Hydraulic Pump pressure.
The invention has the beneficial effects as follows: the hydraulic lifting apparatus of the anti-explosion function of pipeline of the present invention is when pipelines from bursting, can effectively control the highest descending speed of hydraulic ram, and stop its decline simultaneously, finally make its leak free remaining on the current location, improved the safety in utilization of hydraulic ram greatly, greatly reduced because loss and injuries such as the person that contingency brings to people, life, properties.
Description of drawings
Fig. 1 is the hydraulic lifting apparatus that the present invention has the anti-explosion function of pipeline.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline comprises that pipeline prevents explosion safety valve 1, hydraulic ram 2, Hydraulic Pump 3, handle valve 4, apportioning valve 5, safety valve 6, pressure gauge 7, two T-pipe joints 9 and hydraulic reservoir 10.Described hydraulic reservoir 10 is connected by hydralic hose 8 with Hydraulic Pump 3, is connected with safety valve 6 at Hydraulic Pump 3, and safety valve 6 is provided with the pressure gauge 7 of measuring Hydraulic Pump pressure.The oil outlet of safety valve 6 is connected with apportioning valve 5 by hydralic hose 8, an oil outlet of handle valve 4 is connected by anti-explosion safety valve 1 oil inlet (ST mouth) of hydralic hose 8 and pipeline, and another oil outlet of handle valve 4 is connected with hydraulic ram 2 by hydralic hose 8.
First oil outlet of handle valve 4 is connected by hydralic hose 8 with apportioning valve 5 right oil inlets, second oil outlet of handle valve 4 is connected with apportioning valve 5 left oil inleting ports by T-pipe joint 9, and the anti-explosion safety valve 1 hydraulic control mouth (VST mouth) of pipeline is connected with second oil outlet of handle valve 4 by T-pipe joint 9.
When the hydraulic lifting apparatus of the anti-explosion function of pipeline is worked, bar handle valve 4 rotates control ratio valve 5 right oil inlets to a direction and opens oil-feed, at this moment anti-explosion safety valve 1 oil inlet (ST mouth) oil-feed of pipeline, the straightway hydraulic ram 2 that enters then, and hydraulic ram 2 makes hydraulic ram 2 stretch out the operation of finishing the lifting weight to apportioning valve 5 fuel-displaced formation oil circuits.Reverse operating handle valve 4 then, control ratio valve 5 left oil inleting ports are opened oil-feed, at this moment apportioning valve 5 fuel feeding are given hydraulic ram 2, and hydraulic ram 2 fuel feeding form oil circuit by the fuel-displaced apportioning valve 5 of giving of anti-explosion safety valve 1 oil inlet (ST mouth) of pipeline again to the anti-explosion safety valve 1 of pipeline.When hydraulic ram 2 fuel feeding are prevented explosion safety valve 1 to pipeline, the anti-explosion safety valve 1 hydraulic control mouth (VST mouth) of pipeline is subjected to the hydraulic oil that handle valve 4 provides by T-pipe joint 9, come the valve core opening degree of anti-explosion safety valve 1 inside of pilot piping, make hydraulic ram 2 begin the pulsation-free descending motions.
When anti-explosion safety valve 1 internal pressure of pipeline is big, the anti-explosion safety valve 1 of pipeline can will have hydraulic oil to be transported in the hydraulic reservoir 10 by T-pipe joint 9 by return opening (L mouth), guarantee the safe handling of the anti-explosion safety valve 1 of pipeline.When simultaneously safety valve 6 internal pressures are big, safety valve 6 with can will have hydraulic oil to be transported in the hydraulic reservoir 10 by T-pipe joint 9 by return opening, guarantee the normal use of safety valve 6.
When the hydraulic tubing explosion, the anti-explosion safety device of pipeline is controlled its highest descending speed with actv., and stops its decline simultaneously, finally makes its leak free remaining on the current location.Improved the safety in utilization of hydraulic ram so greatly, greatly reduced because loss and injuries such as the person that contingency brings to people, life, properties.
More than show and described groundwork of the present invention, principal character and advantage.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. one kind has the hydraulic lifting apparatus that pipeline is prevented the explosion function, comprise hydraulic reservoir and Hydraulic Pump, it is characterized in that: also comprise apportioning valve, the handle valve, pipeline is prevented the explosion safety valve, T-pipe joint and hydraulic ram, described hydraulic reservoir and Hydraulic Pump pass through pipeline connection, described Hydraulic Pump is connected with apportioning valve by pipeline, two oil outlets of described handle valve are connected with hydraulic ram by the anti-explosion safety valve oil inlet of pipeline and pipeline respectively, first oil outlet of described handle valve is connected with the right oil inlet of apportioning valve, second oil outlet of described handle valve is connected with the apportioning valve left oil inleting port by T-pipe joint, and the anti-explosion safety valve hydraulic control mouth of described pipeline is connected with second oil outlet of handle valve by T-pipe joint.
2. a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline according to claim 1, it is characterized in that: also comprise safety valve, described Hydraulic Pump is connected with apportioning valve by safety valve.
3. a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline according to claim 2, it is characterized in that: described safety valve return opening is connected with hydraulic reservoir by pipeline.
4. a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline according to claim 3, it is characterized in that: the anti-explosion safety valve return opening of described pipeline is connected with hydraulic reservoir by pipeline.
5. a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline according to claim 4, it is characterized in that: also comprise another T-pipe joint, described safety valve return opening is connected with first joint of T-pipe joint by pipeline, the anti-explosion safety valve return opening of described pipeline is connected with second joint of T-pipe joint by pipeline, and the 3rd joint of described T-pipe joint is connected with hydraulic reservoir by pipeline.
6. a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline according to claim 5 is characterized in that: described pipeline employing hydralic hose.
7. a kind of hydraulic lifting apparatus with the anti-explosion function of pipeline according to claim 6, it is characterized in that: safety valve is provided with the pressure gauge of measuring Hydraulic Pump pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165662.XA CN103232005B (en) | 2013-05-08 | 2013-05-08 | A kind of hydraulic lifting apparatus with pipeline explosion-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165662.XA CN103232005B (en) | 2013-05-08 | 2013-05-08 | A kind of hydraulic lifting apparatus with pipeline explosion-proof function |
Publications (2)
| Publication Number | Publication Date |
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| CN103232005A true CN103232005A (en) | 2013-08-07 |
| CN103232005B CN103232005B (en) | 2015-09-02 |
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| CN201310165662.XA Active CN103232005B (en) | 2013-05-08 | 2013-05-08 | A kind of hydraulic lifting apparatus with pipeline explosion-proof function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914060A (en) * | 2016-05-10 | 2016-08-31 | 国网山东省电力公司聊城供电公司 | Breaker hydraulic mechanism automatic gas relief device |
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| Publication number | Publication date |
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| CN103232005B (en) | 2015-09-02 |
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Address after: Kunshan City, Suzhou City, Jiangsu Province, Zhangpu town 215321 Jujin Road No. 278 Patentee after: Kunshan Jin Huabao vehicle manufacturing Limited by Share Ltd Address before: Kunshan City, Suzhou City, Jiangsu Province, Zhangpu town 215321 Jujin Road No. 278 Patentee before: Kunshan Jinhua Paus Rubber Tire Vehicle Manufacturing Co., Ltd. |