CN207002102U - A kind of safety arrestment parallel redundancy oil return apparatus of mine hoist - Google Patents
A kind of safety arrestment parallel redundancy oil return apparatus of mine hoist Download PDFInfo
- Publication number
- CN207002102U CN207002102U CN201720583114.2U CN201720583114U CN207002102U CN 207002102 U CN207002102 U CN 207002102U CN 201720583114 U CN201720583114 U CN 201720583114U CN 207002102 U CN207002102 U CN 207002102U
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- China
- Prior art keywords
- valve
- hydraulic station
- oil return
- magnetic valve
- hydraulic
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Abstract
The utility model proposes a kind of safety arrestment parallel redundancy oil return apparatus of mine hoist, and it includes 4 magnetic valves and 1 overflow valve, wherein the entrance point of the first magnetic valve is connected with the A pipes of hydraulic station, exports in oil return to hydraulic station；The entrance point of the second solenoid valve is connected with the B pipes of hydraulic station, and the port of export is respectively by overflow valve, the 3rd magnetic valve and the 4th electromagnetic valve oil return to hydraulic station.The utility model forms redundancy drainback passage standby each other by being connected in parallel on the valve system inside one group of hydraulic valve bank, with hydraulic station of hydraulic station A, B outlet, solves the design defect of hydraulic station, improves reliability, fully meets 2016 editions《Safety regulations in coal mine》Related request.
Description
Technical field
A kind of hydraulic oil-returning device is the utility model is related to, is mainly used in the brakes of mining hoist.
Background technology
Most disk brake conducts for using spring braking on modern large-scale mine elevator (also known as hoist engine)
Brake apparatus, the hydraulic station supporting with it provide adjustable high pressure liquid force feed for disc-brake, and realization is declutched and braking work
Energy.When the high pressure liquid force feed that hydraulic station provides enters disc-brake, disc-brake is in the state that declutches.Work as brakes
Hydraulic oil oil return to fuel tank when, disc-brake is in on-position.Normal open overregulates hydraulic station system oil in practical application
The height of pressure, can be to control the size of disc-brake brake force, to meet requirement that elevator is run under different operating modes.
Hydraulic station is generally divided into electrical delay two-stage system ejector half and permanent deceleration type two types according to work characteristics, and it is exported
Two pressure oil passages of A, B are typically all set, are connected respectively with two groups of brakes of A, B, while in the inside of hydraulic station, can be distinguished
It is correspondingly arranged two different drainback passages.When because deadly condition needs brake hard, (i.e. safety is made in elevator running
It is dynamic) when, the rapid oil return box of pressure oil in A pipes, A groups disc-brake generation brake force causes elevator to run slowly；In B pipes
Pressure oil circuit control internally under, oil return box after the several seconds that is delayed, brake force caused by B group brakes acts on lifting again
On machine, the complete braking of elevator had finally both been realized, turn avoid elevator deceleration caused by applying whole brake force suddenly
Overrun issues.Hydraulic station with the function is referred to as electrical delay two-stage system ejector half.
Another more advanced hydraulic station equally sets two outlet pressure oil passages of A, B, also respectively with two groups of A, B
Brake is connected.Unlike electrical delay two-stage system ejector half hydraulic station, the size of its outlet oil pressure is by the electro-hydraulic of inside
Proportioning valve is adjusted, and by previously given proportioning valve current value controls the size of A, B pipe outlet oil pressure and oil return process, and then
The change of the brake force of disc-brake is controlled, can realize elevator according to setting with constant deceleration under any operating mode
Degree operation, the hydraulic station with the function are referred to as permanent deceleration type.
Hydraulic station and published 201420769755.3 patent for above two common type, set in hydraulic station
Put the pressure valve for corresponding to A, B pipe and electro-hydraulic proportional valve is all only a set of respectively, once one hydraulic valve of any of which is because interior
Portion's failure (such as valve element jam, given imbalance), when emergency safety is braked, all can be such that elevator does not brake reliably, and then
Lead to serious personal's injures and deaths and equipment breakdown.For the China of issue in this 2016《Safety regulations in coal mine》425th article is distinctly claimed
" mechanical brake device should use spring, can realize service braking and safety arrestment.... safety arrestment must have in parallel superfluous
Remaining drainback passage.……”.
The content of the invention
The purpose of this utility model is to provide a kind of safety arrestment parallel redundancy oil return apparatus of mine hoist, to solve
Design defect existing for hydraulic station, meet《Safety regulations in coal mine》(2016) require, improve the reliability of hydraulic station, it is particularly suitable
In the transformation of existing hydraulic station.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.According to this reality
With a kind of safety arrestment parallel redundancy oil return apparatus of mine hoist of new proposition, it includes first the 1, second electricity of magnetic valve
Magnet valve 2, the 3rd magnetic valve 4, the 4th magnetic valve 5 and overflow valve 3, wherein the A of the entrance point of the first magnetic valve 1 and hydraulic station 8 is managed
It is connected, exports in oil return to hydraulic station 8；The entrance point of the second solenoid valve 2 is connected with the B pipes of hydraulic station 8, port of export difference
By in overflow valve 3, the 3rd magnetic valve 4 and the oil return of the 4th magnetic valve 5 to hydraulic station 8.
The purpose of this utility model and solve its technical problem can also be using following technical measures come further real
It is existing.
The safety arrestment parallel redundancy oil return apparatus of foregoing mine hoist, in addition to the 5th magnetic valve 7 and electro-hydraulic ratio
Example valve 6, wherein the port of export of described second solenoid valve 2 connects the entrance point of the magnetic valve 7 of electro-hydraulic proportional valve 6 and the 5th respectively,
The port of export oil return of electro-hydraulic proportional valve 6 to hydraulic station 8, the port of export of the 5th magnetic valve 7 passes through overflow valve 3, the 3rd electromagnetism respectively
Valve 4 and the oil return of the 4th magnetic valve 5 are in hydraulic station 8.
Compared with prior art, advantages below be present in the utility model：By one group that is connected in parallel on hydraulic station A, B outlet
Valve system inside hydraulic valve bank, with hydraulic station forms redundancy drainback passage standby each other, the design defect for solving hydraulic station,
Reliability is improved, fully meets 2016 editions《Safety regulations in coal mine》Related request.
Brief description of the drawings
Fig. 1 is that the utility model shows for the structure of the embodiment of mine hoist safety arrestment parallel redundancy oil return apparatus one
It is intended to；
Fig. 2 is the utility model for another embodiment of mine hoist safety arrestment parallel redundancy oil return apparatus
Structural representation.
【Main element symbol description】
1st, the first magnetic valve
2nd, second solenoid valve
3rd, overflow valve
4th, the 3rd magnetic valve
5th, the 4th magnetic valve
6th, electro-hydraulic proportional valve
7th, the 5th magnetic valve
8th, hydraulic station
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Returned referring to Fig. 1, it is a kind of safety arrestment parallel redundancy for mine hoist of the utility model embodiment
The structural representation of oily device, the device include 4 magnetic valves and 1 overflow valve.The wherein entrance point and liquid of the first magnetic valve 1
The A pipes at pressure station 8 are connected, and export in oil return to hydraulic station 8.Second solenoid valve 2 respectively with overflow valve 3, the 3rd magnetic valve the 4, the 4th
Magnetic valve 5 forms hydraulic circuit, and the wherein entrance point of second solenoid valve 2 is connected with the B pipes of hydraulic station 8, and the port of export passes through respectively
Overflow valve 3, the 3rd magnetic valve 4, in the oil return of the 4th magnetic valve 5 to hydraulic station 8, the hydraulic station 8 is electrical delay two-stage system ejector half.
The safety arrestment parallel redundancy oil return apparatus of a kind of mine hoist of the utility model, by being connected in parallel on A, B pipe
Four magnetic valves and overflow valve 3, form standby each other redundancy drainback passage with 8 original system of hydraulic station.
The course of work of the utility model embodiment is described as follows：
When the hydraulic oil that hydraulic station 8 exports is respectively enterd inside two groups of disc-brakes by A, B pipeline, make brake loose
Lock, elevator is just in shape is run, and now the first magnetic valve 1, second solenoid valve 2 are powered, and drainback passage is off state.
When needing emergency safety to brake because of external circumstances, the first magnetic valve 1, second solenoid valve 2 dead electricity simultaneously, the high pressure in A pipes
Oil runs through the first magnetic valve 1 and is back to fuel tank, and A groups brake applies its whole brake force at once；At the same time, in B pipes
Hydraulic oil makes section hydraulic oil stream be back to fuel tank by overflow valve 3, B groups brake also applying portion and not all brake force in
On elevator, elevator slows down according to setting deceleration until stopping, and the 3rd magnetic valve 4 and the 4th magnetic valve 5 are delayed in setting
Several seconds (calculates) dead electricity afterwards according to relevant rule, and the hydraulic oil in B pipes is just all back to fuel tank, and the offer of B groups brake is entirely
Portion's brake force, it is ensured that elevator is in complete on-position.
Above-mentioned hydraulic station 8 belongs to the two-stage system ejector half of electrical delay.
Referring to Fig. 2, it is that a kind of safety arrestment parallel connection for mine hoist of another embodiment of the utility model is superfluous
The structural representation of remaining oil return apparatus, the device include 5 magnetic valves and 1 overflow valve 3 and an electro-hydraulic proportional valve 6.Its
In, the entrance point of first magnetic valve 1 is connected with the A pipes of hydraulic station 8, exports in oil return to hydraulic station 8.Second solenoid valve 2
The B pipes of entrance point and hydraulic station 8 be connected, the port of export is connected with the magnetic valve 7 of electro-hydraulic proportional valve 6 and the 5th respectively, the 5th electromagnetism
Valve 7 is respectively by the way that in overflow valve 3, the 3rd magnetic valve 4, the oil return of the 4th magnetic valve 5 to hydraulic station 8, the hydraulic station 8 slows down to be permanent
Type.
The course of work of the embodiment is described as follows：When the hydraulic oil that hydraulic station 8 exports respectively enters two by A, B pipeline
Inside group disc-brake, brake is set to declutch, elevator is just in running status, now the first magnetic valve 1, second solenoid valve
2 are powered, and drainback passage is off state.When needing emergency safety to brake because of external circumstances, the first magnetic valve 1, second
Dead electricity, the hydraulic oil in A pipes run through the first magnetic valve 1 and are back to fuel tank magnetic valve 2 simultaneously, and A group brakes apply it at once
Whole brake force；At the same time, the hydraulic oil in B pipes is by electro-hydraulic proportional valve 6, according to given speed oil return, the braking of B groups
Device also produces the brake force of setting, it is ensured that and elevator is run according to the permanent deceleration of setting, after speed is reduced to predetermined value, the
The dead electricity of five magnetic valve 7, the pressure oil in B pipes enters and the identical oil return process of embodiment 1, B groups brake successively offer part
Until last whole brake force, it is ensured that the stable on-position of elevator.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (2)
1. the safety arrestment parallel redundancy oil return apparatus of a kind of mine hoist, it is characterised in that it includes the first magnetic valve
(1), second solenoid valve (2), the 3rd magnetic valve (4), the 4th magnetic valve (5) and overflow valve (3), wherein the first magnetic valve (1)
Entrance point is connected with the A pipes of hydraulic station (8), in outlet oil return to hydraulic station (8)；
The second solenoid valve (2), overflow valve (3), the 3rd magnetic valve (4) and the 4th magnetic valve (5) form hydraulic circuit；Wherein
The entrance point of second solenoid valve (2) is connected with the B pipes of hydraulic station (8), and the port of export passes through overflow valve (3), the 3rd magnetic valve respectively
(4) and the 4th magnetic valve (5) oil return is interior to hydraulic station (8).
2. the safety arrestment parallel redundancy oil return apparatus of mine hoist according to claim 1, it is characterised in that also wrap
The 5th magnetic valve (7) and electro-hydraulic proportional valve (6) are included, wherein the port of export of described second solenoid valve (2) connects electro-hydraulic ratio respectively
The entrance point of example valve (6) and the 5th magnetic valve (7), the port of export oil return of electro-hydraulic proportional valve (6) to hydraulic station (8), the 5th electromagnetism
The port of export of valve (7) is respectively by overflow valve (3), the 3rd magnetic valve (4) and the 4th magnetic valve (5) oil return to hydraulic station (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720583114.2U CN207002102U (en) | 2017-05-22 | 2017-05-22 | A kind of safety arrestment parallel redundancy oil return apparatus of mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720583114.2U CN207002102U (en) | 2017-05-22 | 2017-05-22 | A kind of safety arrestment parallel redundancy oil return apparatus of mine hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207002102U true CN207002102U (en) | 2018-02-13 |
Family
ID=61443730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720583114.2U Expired - Fee Related CN207002102U (en) | 2017-05-22 | 2017-05-22 | A kind of safety arrestment parallel redundancy oil return apparatus of mine hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207002102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526152A (en) * | 2019-08-30 | 2019-12-03 | 太原理工大学 | Multichannel protecting against shock intelligent constant deceleration brake fluid system |
-
2017
- 2017-05-22 CN CN201720583114.2U patent/CN207002102U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526152A (en) * | 2019-08-30 | 2019-12-03 | 太原理工大学 | Multichannel protecting against shock intelligent constant deceleration brake fluid system |
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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 |
Granted publication date: 20180213 Termination date: 20190522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |