CN207434791U - A kind of hoist braking system redundant loop - Google Patents
A kind of hoist braking system redundant loop Download PDFInfo
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- CN207434791U CN207434791U CN201721280056.2U CN201721280056U CN207434791U CN 207434791 U CN207434791 U CN 207434791U CN 201721280056 U CN201721280056 U CN 201721280056U CN 207434791 U CN207434791 U CN 207434791U
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- valve
- directional control
- solenoid
- control valve
- solenoid directional
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Abstract
A kind of hoist braking system redundant loop, solenoid directional control valve G7 is set, oil return during the solenoid directional control valve G7 dead electricity, with solenoid directional control valve G3 realizations oil return in parallel, without being replaced to hydraulic station, construction volume is small, influence promoted the time it is short, replace accessory it is less, expense is low, the parallel redundancy circuit of winch brake fluid system is realized, meets regulatory requirements, improves mine hoist safety coefficient.
Description
Technical field
The present invention relates to a kind of hoist braking system redundant loops, belong to mine engineering machine design and manufacture technology neck
Domain.
Background technology
In the lifting system of mine, brake fluid system is important protective device, and all protections are all by this
System is realized.Brake fluid system is made of hydraulic station, brake and electric-control system, and hydraulic station passes through oil pressure as power source
The braking function of elevator is realized in the action of control brake, and when breaking down, hydraulic station wants rapid oil return to ensure that brake is embraced
Lock, realize safety arrestment, so the operation is stable of hydraulic station, be reliably mine safety promoted important leverage, working performance
With relationship between quality to the safety of personal equipment.
Hydraulic station fluid such as oil cap booty or is being processed sundries during installing etc., can caused due to various pollutions
The spool of reversal valve is stuck, and causes ground fluid in brake that cannot stay return case rapidly, brake failure ultimately results in accident
Occur.2016 editions《Safety regulations in coal mine》It provides " safety arrestment must have the drainback passage of parallel redundancy ", it is further complete
The function of hydraulic station has been apt to it, has provided the security of hydraulic station, so hydraulic pressure must be transformed or be replaced to control valve group
It stands, but replacement hydraulic station cost is higher, so needing to be improved control valve group.
The content of the invention
Hair utility model technical problems to be solved are to provide a kind of hydraulic station that do not need to change and brake whole valve group, construction
The simple hoist braking system redundant loop of process.
The technical solution of the utility model is：
A kind of hoist braking system redundant loop, including two hydraulic stations, the hydraulic station includes fuel tank, is connected to oil
Oil pump on case, described two hydraulic stations connect A pipes by same hydraulic directional valve and B is managed, and the B pipes include changing with surging
The redundancy solenoid valve G1 and redundancy solenoid valve G2, the redundancy solenoid valve G1 and redundancy solenoid valve G2 connected to valve is in parallel, redundancy
Solenoid valve G1 connects the output terminal of hydraulic directional valve, the redundancy solenoid valve G1 and redundant electric with the input terminal of redundancy solenoid valve G2
The output terminal connection working cylinder of magnet valve G2, the B pipes further include for the solenoid directional control valve G4 of B pipes oil return during safety arrestment and
The output terminal of solenoid directional control valve G5, the solenoid directional control valve G5 connect with the output terminal of redundancy solenoid valve G1 and redundancy solenoid valve G2
It connects, the input terminal of the solenoid directional control valve G4 is connected with the input terminal of redundancy solenoid valve G1 and redundancy solenoid valve G2, by automatically controlled
Delay time is set, and solenoid directional control valve G4 delays dead electricity, solenoid directional control valve G5 delays are charged, so as to fulfill two stage braking in well,
When hoisting container is close to well head, by automatically controlled control, solenoid directional control valve G4 dead electricity solenoid directional control valves G5 is charged, realizes well head one
Grade braking；
A pipe includes solenoid directional control valve G3, cooperation realization work valve opening and work when the solenoid directional control valve G3 is charged
Braking turns on A pipe safety arrestment way to cycle oil, the output of the input terminal connection hydraulic directional valve of solenoid directional control valve G3 during dead electricity
End, the output terminal of the output terminal connection hydraulic directional valve of solenoid directional control valve G3, which is characterized in that the A pipes further include electromagnetism and change
To valve G7, oil return during the solenoid directional control valve G7 dead electricity, with solenoid directional control valve G3 realizations oil return in parallel, the solenoid directional control valve G7
P ends and A ends be equipped with articulation, the P ends of the solenoid directional control valve G7, which are equipped with shut-off valve and pass through threeway, is connected to the cut-off of A pipes
Valve, the A ends connection fuel tank of the solenoid directional control valve G7.
Further, thermometer and well strainer are equipped between the fuel tank and oil pump successively, the oil pump is with surging
Paper filter, proportional pressure control valve of connecting between the paper filter and hydraulic directional valve are equipped between reversal valve.
Further, pressure reducing valve, check valve and unidirectional are equipped between the hydraulic directional valve and redundancy solenoid valve G1 successively
Throttle valve, the one-way throttle valve connect accumulator.
The beneficial effects of the utility model：
The utility model sets solenoid directional control valve G7, oil return during the solenoid directional control valve G7 dead electricity, with solenoid directional control valve G3
Realize oil return in parallel, without being replaced to hydraulic station, construction volume is small, and it is short to influence to be promoted the time, and it is less to replace accessory, expense
It is low, the parallel redundancy circuit of winch brake fluid system is realized, meets regulatory requirements, improves mine hoist safety coefficient.
Description of the drawings
Fig. 1 positions the utility model structure diagram.
In figure：
Fuel tank 1, oil pump 2, hydraulic directional valve 3, thermometer 4, well strainer 5, paper filter 6, proportional pressure control valve 7,
Pressure reducing valve 8, check valve 9, one-way throttle valve 10, accumulator 11, shut-off valve 12.
Specific embodiment
The utility model is further described in explanation and specific embodiment below in conjunction with the accompanying drawings.
A kind of hoist braking system redundant loop, including two hydraulic stations, the hydraulic station includes fuel tank 1, is connected to
Oil pump 2 on fuel tank, described two hydraulic stations connect A pipes by same hydraulic directional valve 3 and B is managed, and the B pipes include and liquid
The redundancy solenoid valve G1 and redundancy solenoid valve G2, the redundancy solenoid valve G1 and redundancy solenoid valve G2 that dynamic reversal valve 3 connects are in parallel,
Redundancy solenoid valve G1 connects the output terminal of hydraulic directional valve 3 with the input terminal of redundancy solenoid valve G2, the redundancy solenoid valve G1 and
The output terminal connection working cylinder of redundancy solenoid valve G2, the B pipes further include the electromagnetic switch for B pipes oil return during safety arrestment
The output of the output terminal of valve G4 and solenoid directional control valve G5, the solenoid directional control valve G5 and redundancy solenoid valve G1 and redundancy solenoid valve G2
End connection, the input terminal of the solenoid directional control valve G4 are connected with the input terminal of redundancy solenoid valve G1 and redundancy solenoid valve G2, pass through
The electric control delay time time sets, and solenoid directional control valve G4 delays dead electricity, solenoid directional control valve G5 delays are charged, so as to fulfill two-stage system in well
Dynamic, when hoisting container is close to well head by automatically controlled control, solenoid directional control valve G4 dead electricity solenoid directional control valves G5 is charged, realizes well head
Level-one is braked；
A pipe includes solenoid directional control valve G3, cooperation realization work valve opening and work when the solenoid directional control valve G3 is charged
Braking turns on A pipe safety arrestment way to cycle oil, the output of the input terminal connection hydraulic directional valve of solenoid directional control valve G3 during dead electricity
End, the output terminal of the output terminal connection hydraulic directional valve of solenoid directional control valve G3, which is characterized in that the A pipes further include electromagnetism and change
To valve G7, oil return during the solenoid directional control valve G7 dead electricity with solenoid directional control valve G3 realizations oil return in parallel, is fixed by the bracket electromagnetism
Reversal valve G7, a fixing bolt of the boring valve group seat in one end of stent are fixed, and curved 90 ° of the other end highly makes supporting rack
Top keeps horizontal.At the P ends of solenoid directional control valve G7 and A sections of respectively one articulation of welding, solenoid directional control valve G7 is welded on branch
On support.Add a threeway in hydraulic station A pipe suitable positions, according to live threeway and the position lower pipeline size at G7 valve P ends, add and cut
Only valve 12, lower good pipeline size are connected with G7 valve P ends with articulation, then backed out hydraulic station oil filler end cap, on end cap
Turn the hole of a diameter 2.5mm, according to the position lower pipeline size in hole on end cap and G7 valve A ends, connected with articulation and G7 valve A ends
It connects.
Further, between the fuel tank 1 and oil pump 2 successively be equipped with thermometer 4 and well strainer 5, the oil pump 2 with
Paper filter 6, proportional pressure control valve of connecting between the paper filter 6 and hydraulic directional valve 3 are equipped between hydraulic directional valve 3
7。
Further, pressure reducing valve 8, check valve 9 and list are equipped between the hydraulic directional valve 3 and redundancy solenoid valve G1 successively
To throttle valve 10, the one-way throttle valve 10 connects accumulator 11.
The utility model sets solenoid directional control valve G7, oil return during the solenoid directional control valve G7 dead electricity, with solenoid directional control valve G3
Realize oil return in parallel, without being replaced to hydraulic station, construction volume is small, and it is short to influence to be promoted the time, and it is less to replace accessory, expense
It is low, the parallel redundancy circuit of winch brake fluid system is realized, meets regulatory requirements, improves mine hoist safety coefficient.
Claims (3)
1. a kind of hoist braking system redundant loop, including two hydraulic stations, the hydraulic station includes fuel tank, is connected to fuel tank
On oil pump, described two hydraulic stations connect A pipes by same hydraulic directional valve and B is managed, and B pipe includes and surge commutation
The redundancy solenoid valve G1 and redundancy solenoid valve G2, the redundancy solenoid valve G1 and redundancy solenoid valve G2 of valve connection are in parallel, redundant electric
Magnet valve G1 connects the output terminal of hydraulic directional valve, the redundancy solenoid valve G1 and redundancy electromagnetism with the input terminal of redundancy solenoid valve G2
The output terminal connection working cylinder of valve G2, the B pipes further include the solenoid directional control valve G4 and electricity for B pipes oil return during safety arrestment
The output terminal of magnetic reversal valve G5, the solenoid directional control valve G5 are connected with the output terminal of redundancy solenoid valve G1 and redundancy solenoid valve G2,
The input terminal of the solenoid directional control valve G4 is connected with the input terminal of redundancy solenoid valve G1 and redundancy solenoid valve G2, passes through electric control delay time
Time sets, and solenoid directional control valve G4 delays dead electricity, solenoid directional control valve G5 delays are charged, so as to fulfill two stage braking in well, when carrying
When rising container close to well head, by automatically controlled control, solenoid directional control valve G4 dead electricity solenoid directional control valves G5 is charged, realizes well head level-one system
It is dynamic；
A pipe includes solenoid directional control valve G3, cooperation realization work valve opening and service braking when the solenoid directional control valve G3 is charged,
A pipe safety arrestment way to cycle oil, the output terminal of the input terminal connection hydraulic directional valve of solenoid directional control valve G3, electromagnetism are turned on during dead electricity
The output terminal of the output terminal connection hydraulic directional valve of reversal valve G3, which is characterized in that the A pipes further include solenoid directional control valve G7,
Oil return during the solenoid directional control valve G7 dead electricity, and solenoid directional control valve G3 realizations oil return in parallel, the P ends of the solenoid directional control valve G7 and
A ends are equipped with articulation, and the P ends of the solenoid directional control valve G7, which are equipped with shut-off valve and pass through threeway, is connected to A pipe shut-off valves, described
The A ends connection fuel tank of solenoid directional control valve G7.
2. a kind of hoist braking system redundant loop according to claim 1, which is characterized in that the fuel tank and oil pump it
Between successively be equipped with thermometer and well strainer, between the oil pump and hydraulic directional valve be equipped with paper filter, the papery
It connects between filter and hydraulic directional valve proportional pressure control valve.
3. a kind of hoist braking system redundant loop according to claim 1, which is characterized in that the hydraulic directional valve with
Pressure reducing valve, check valve and one-way throttle valve are equipped between redundancy solenoid valve G1 successively, the one-way throttle valve connects accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280056.2U CN207434791U (en) | 2017-09-30 | 2017-09-30 | A kind of hoist braking system redundant loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280056.2U CN207434791U (en) | 2017-09-30 | 2017-09-30 | A kind of hoist braking system redundant loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207434791U true CN207434791U (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721280056.2U Expired - Fee Related CN207434791U (en) | 2017-09-30 | 2017-09-30 | A kind of hoist braking system redundant loop |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673158A (en) * | 2017-09-30 | 2018-02-09 | 枣庄矿业集团新安煤业有限公司 | A kind of hoist braking system redundant loop |
-
2017
- 2017-09-30 CN CN201721280056.2U patent/CN207434791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673158A (en) * | 2017-09-30 | 2018-02-09 | 枣庄矿业集团新安煤业有限公司 | A kind of hoist braking system redundant loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20180930 |