CN101545379A - Electrohydraulic anti-pass-through device - Google Patents
Electrohydraulic anti-pass-through device Download PDFInfo
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- CN101545379A CN101545379A CN200910064842A CN200910064842A CN101545379A CN 101545379 A CN101545379 A CN 101545379A CN 200910064842 A CN200910064842 A CN 200910064842A CN 200910064842 A CN200910064842 A CN 200910064842A CN 101545379 A CN101545379 A CN 101545379A
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Abstract
The invention discloses an electrohydraulic anti-pass-through device, which comprises a hydraulic power source of which the outlet outputs in two paths, wherein one path of the hydraulic power source, after passing through a one-way valve, is also divided into three paths which are connected with an energy accumulator, a pressure detection element and an inlet of an electromagnetic valve respectively, the other inlet of the electromagnetic valve is connected with an oil tank, and the outlet of the electromagnetic valve is connected with front and back chambers of the oil tank; and the other path of the hydraulic power source is connected with an inlet of a reversing valve through another one-way valve, the other inlet of the reversing valve is connected with the oil tank, the outlet of the reversing valve is connected with the front and back chambers of the oil tank, and the head end of a piston of an oil cylinder is connected with a swinging rod connected with a coal gate. The electrohydraulic anti-pass-through device is small in volume, light in weight, low in price, wide in speed adjustment range, high in commonality, capable of effectively preventing a pass-through accident from expanding, convenient in installation, simple in operation, convenient in maintenance, and particularly suitable for use at a position, where a coal feeding machine is arranged, at a discharge opening of a coal bunker.
Description
Technical field
The present invention relates to the anti-sealing coal of a kind of coal bunker and scurry the device in storehouse, be particularly useful for reciprocating type feeder place being installed and use at the coal bunker discharging opening.
Background technology
Present domestic colliery is scurried the storehouse accident and is happened occasionally, and is referred to as downhole debris flow, and accident can cause enormous economic loss when taking place, even causes personal injury.According to retrieval and investigation, have only the generation of adopting manually-operated to realize the feeder closing gate is prevented to scurry the storehouse accident at present, but, adopt the people for solving because to scurry storehouse accident time of origin very fast, can not effectively suppress or prevent the generation and the expansion of accident.
Summary of the invention
The objective of the invention is to provide a kind of electrohydraulic anti-pass-through device, and this installs, and speed adjustable range is big, highly versatile, can effectively suppress or prevent to scurry the generation and the expansion of storehouse accident.
The object of the present invention is achieved like this: this device comprises hydraulic power source, hydraulic power source comprises hydraulic oil pump, strainer, overflow valve, pressure meter and motor, strainer one end links to each other with fuel tank, the strainer other end links to each other with the hydraulic oil pump liquid sucting port, motor links to each other with hydraulic oil pump, the hydraulic oil pump outlet links to each other with the overflow valve inlet, link to each other with pressure meter simultaneously, the overflow valve outlet links to each other with fuel tank, the hydraulic power source outlet divides two-way output, hydraulic power source outlet is leaded up to and is divided three the tunnel again behind the one way valve, one the tunnel links to each other with accumulator, and another road links to each other with pressure detecting element, and inlet of a Third Road and an electromagnetic valve links to each other, another inlet of this electromagnetic valve links to each other with fuel tank, and the outlet of electromagnetic valve links to each other with the chamber, front and back of oil cylinder; Hydraulic power source exports another road and links to each other by inlet of another one way valve and a reversal valve, another inlet of this reversal valve links to each other with fuel tank, the outlet of reversal valve links to each other with the chamber, front and back of oil cylinder, and the piston rod end of oil cylinder is connected with fork, and fork is connected with the retaining coal gate.
Described oil cylinder is a two-way cylinder.
Described reversal valve can be a solenoid operated directional valve, also can be hand-operated direction valve.
Compact conformation of the present invention, volume is little, in light weight, cost is low, speed adjustable range is big, highly versatile, can effectively prevent to scurry the expansion of storehouse accident, be convenient to install, need not manually-operated, simple to operate, easy to maintenance, have practicality widely, be particularly useful for reciprocating type feeder place being installed and use at the coal bunker discharging opening.
Description of drawings
Fig. 1 is a principle system drawing of the present invention.
Among the figure: 1-strainer, 2-motor, 3-hydraulic oil pump, the 4-pressure meter, 5, the 10-one way valve, the 6-pressure detecting element, the 7-accumulator, 8-fuel tank, 9-overflow valve, the 11-two-position four-way solenoid valve, 12-3-position 4-way solenoid operated directional valve, 13-oil cylinder, the 14-fork, 15-keeps off coal gate, 16-sensor, 17-feeder, Y1, Y2 are 3-position 4-way solenoid operated directional valve electromagnet, and Y3 is the two-position four-way solenoid valve electromagnet.
The specific embodiment
In Fig. 1, hydraulic power source comprises that by hydraulic oil pump 3, strainer 1, overflow valve 9, pressure meter 4 and motor 2, strainer 1 one ends link to each other with fuel tank 8, and strainer 1 other end links to each other with hydraulic oil pump 3 liquid sucting ports.Motor 2 is connected with hydraulic oil pump 3.Hydraulic oil pump 3 outlets link to each other with overflow valve 9 inlets, link to each other with pressure meter 4 simultaneously, and overflow valve 9 outlets link to each other with fuel tank 8.
The hydraulic power source outlet divides two-way output, hydraulic power source outlet is leaded up to and is divided behind the one way valve 5 with accumulator 7 link to each other at three the tunnel: the one tunnel again, another road links to each other with pressure detecting element 6,11 1 inlets of Third Road and two-position four-way solenoid valve link to each other, another inlet of two-position four-way solenoid valve 11 links to each other with fuel tank 8, and the outlet of two-position four-way solenoid valve 11 links to each other with the chamber, front and back of oil cylinder 13; Hydraulic power source exports another road and links to each other by 12 1 inlets of another one way valve 10 and 3-position 4-way solenoid operated directional valve, another inlet of 3-position 4-way solenoid operated directional valve 12 links to each other with fuel tank 8, the outlet of 3-position 4-way solenoid operated directional valve 12 links to each other with the chamber, front and back of oil cylinder 13, the piston rod end of oil cylinder 13 is connected with fork 14, and fork 14 is connected with retaining coal gate 15.
The keying of retaining coal gate during the system operate as normal:
The main 3-position 4-way solenoid operated directional valve 12 that leans on is handled.When feeder needed the work coal supply, motor 2 sent electricity, hydraulic power source work, electromagnet Y1 powers on, 3-position 4-way solenoid operated directional valve 12 works in right valve position, and simultaneously to oil cylinder 13 rod end chambers and accumulator 7 fuel feeding, oil cylinder 13 promotes fork 14 and drives 15 unlatchings of retaining coal gate.When retaining coal gate 15 is opened to needed position, electromagnet Y1 outage, oil cylinder 13 is in latched position.At this moment, hydraulic oil pump 3 remains in operation, to accumulator 7 topping ups, and when accumulator 7 reaches required precharge pressure, pressure detecting element 6 actions, motor 2 outages, hydraulic oil pump 3 shuts down.The set pressure of pressure detecting element 6 and overflow valve 9, should be accumulator 7 can provide the temporary impact energy required pressure.
When feeder quit work, the motor 2 of hydraulic system sent electricity, hydraulic power source work, electromagnet Y2 is charged, and 3-position 4-way solenoid operated directional valve 12 works in left valve position, the rod end chamber oil-feed of oil cylinder 13, oil cylinder 13 drives retaining coal gate 15 by fork 14 and closes, and then stops motor 2 work.
Storehouse, the pass closed procedure of gate appear scurrying during feeder work:
When occurring scurrying the storehouse in the feeder course of work, earlier signal is passed to electrical control system by sensor 16, Y3 is charged for electrical control system control electromagnet, two-position four-way solenoid valve 11 works in on-position, accumulator 7 to the oil circuit of oil cylinder 13 rod end chambers is connected, oil cylinder 13 back cavities and fuel tank 8 or atmosphere are connected, and accumulator 7 provides retraction power to oil cylinder 13, and oil cylinder 13 promotes 15 quick closedowns of retaining coal gate by fork 14; Meanwhile, electrical control system makes the outage of feeder drive motor, and feeder stops feeding work.
Claims (1)
1. electrohydraulic anti-pass-through device, this device comprises hydraulic power source, hydraulic power source comprises hydraulic oil pump, strainer, overflow valve, pressure meter and motor, strainer one end links to each other with fuel tank, the strainer other end links to each other with the hydraulic oil pump liquid sucting port, motor links to each other with hydraulic oil pump, the hydraulic oil pump outlet links to each other with the overflow valve inlet, link to each other with pressure meter simultaneously, the overflow valve outlet links to each other with fuel tank, it is characterized in that hydraulic power source outlet divides two-way output, the hydraulic power source outlet is leaded up to and is divided behind the one way valve three the tunnel, the one tunnel to link to each other with accumulator again, another road links to each other with pressure detecting element, inlet of a Third Road and an electromagnetic valve links to each other, and another inlet of this electromagnetic valve links to each other with fuel tank, and the outlet of electromagnetic valve links to each other with the chamber, front and back of oil cylinder; Hydraulic power source exports another road and links to each other by inlet of another one way valve and a reversal valve, another inlet of this reversal valve links to each other with fuel tank, the outlet of reversal valve links to each other with the chamber, front and back of oil cylinder, and the piston rod end of oil cylinder is connected with fork, and fork is connected with the retaining coal gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064842A CN101545379A (en) | 2009-04-30 | 2009-04-30 | Electrohydraulic anti-pass-through device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064842A CN101545379A (en) | 2009-04-30 | 2009-04-30 | Electrohydraulic anti-pass-through device |
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| Publication Number | Publication Date |
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| CN101545379A true CN101545379A (en) | 2009-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910064842A Pending CN101545379A (en) | 2009-04-30 | 2009-04-30 | Electrohydraulic anti-pass-through device |
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| CN (1) | CN101545379A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607876A (en) * | 2012-04-13 | 2012-07-25 | 山东大学 | Multi-path high-precision hydraulic loading and unloading servo control system suitable for model test |
| CN103510982A (en) * | 2013-09-16 | 2014-01-15 | 中国矿业大学 | Coal feeder bunker channeling stopping device used for coal mine |
| CN106246623A (en) * | 2016-08-30 | 2016-12-21 | 徐州五洋科技股份有限公司 | A kind of activating feeder hydraulic gate constant pressure hydraulic control system |
| CN112407843A (en) * | 2020-11-17 | 2021-02-26 | 郑州大学 | Angle modulation vibration coal feeder for detecting water coal channeling bin |
| CN114735399A (en) * | 2022-04-29 | 2022-07-12 | 刘小凯 | Many sticky tapes are automatic prevent scurrying storehouse type belt feeder |
-
2009
- 2009-04-30 CN CN200910064842A patent/CN101545379A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607876A (en) * | 2012-04-13 | 2012-07-25 | 山东大学 | Multi-path high-precision hydraulic loading and unloading servo control system suitable for model test |
| CN102607876B (en) * | 2012-04-13 | 2014-12-10 | 山东大学 | Multi-path high-precision hydraulic loading and unloading servo control system suitable for model test |
| CN103510982A (en) * | 2013-09-16 | 2014-01-15 | 中国矿业大学 | Coal feeder bunker channeling stopping device used for coal mine |
| CN103510982B (en) * | 2013-09-16 | 2015-06-10 | 中国矿业大学 | Coal feeder bunker channeling stopping device used for coal mine |
| CN106246623A (en) * | 2016-08-30 | 2016-12-21 | 徐州五洋科技股份有限公司 | A kind of activating feeder hydraulic gate constant pressure hydraulic control system |
| CN106246623B (en) * | 2016-08-30 | 2018-07-27 | 徐州五洋科技股份有限公司 | A kind of activating feeder hydraulic gate constant pressure hydraulic control system |
| CN112407843A (en) * | 2020-11-17 | 2021-02-26 | 郑州大学 | Angle modulation vibration coal feeder for detecting water coal channeling bin |
| CN114735399A (en) * | 2022-04-29 | 2022-07-12 | 刘小凯 | Many sticky tapes are automatic prevent scurrying storehouse type belt feeder |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090930 |