CN202130952U - Constant deceleration brake conversion device - Google Patents
Constant deceleration brake conversion device Download PDFInfo
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- CN202130952U CN202130952U CN201120192801U CN201120192801U CN202130952U CN 202130952 U CN202130952 U CN 202130952U CN 201120192801 U CN201120192801 U CN 201120192801U CN 201120192801 U CN201120192801 U CN 201120192801U CN 202130952 U CN202130952 U CN 202130952U
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- brake
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Abstract
The utility model provides a constant deceleration brake conversion device, comprising a PLC controller, a detection protector, a speed measuring device, and a hydraulic control system, The hydraulic control system is mainly formed by a G1 reversing valve connected with an A pipeline and a B pipeline leading to a disc type brake, a G2 reversing valve, an accumulator, an overflow valve, and an electro-hydraulic proportional valve, a stop valve is connected at the front of a tapping point of two branches at the front of a check valve, a PLC is used as a core, a corresponding control and amplification circuit is matched, and a UPS backup power supply is added. Deceleration brake is realized on the basis of original work brake and constant torque brake. when an elevator is in a normal work and brake, a constant deceleration brake circuit is closed, a constant deceleration brake is put into service in emergency, when constant deceleration fails, a constant moment second order brake is immediately used, improving brake performance, and guaranteeing reliability and stability of system safety brake. The constant deceleration brake conversion device is advantaged by simple structure, low cost, high reliability, and convenient maintenance.
Description
Technical field
The utility model relates to a kind of transfer device, especially a kind of permanent brake snub transfer device that is applicable to gig fault emergency braking.
Background technology
Gig braking system is the important safety fender guard of gig, is that gig in case of emergency is decelerated to the last resort that stops, and is directly connected to mine production and personal security.Main effect has: the failure-free lock is lived gig when promoting end; As safety gear, when emergency episode, carry out safety arrestment.The safety arrestment mode mainly contains two kinds at present: the braking of (1) constant force square: earlier a part is coiled the lock locking, gig is slowed down, the speed of being decelerated to applies another part Pan Zha again when being zero; (2) permanent brake snub: constant with deceleration/decel is controlled target, through continuous adjusting lock torque, gig all can be braked when different loads by the deceleration/decel of setting.
Domestic existing gig is braked the mode that system mostly adopts the braking of constant force square; But often can not satisfy brake request under two kinds of situation: (1) is darker owing to pit shaft for cylindrical drum hoist; Receive the influence of steel wire deadweight; Lifting container gig Tension Difference when well head and shaft bottom changes greatly, causes that the deceleration/decel rangeability is big, physical shock is big; (2) the bigger friction type winder of unbalance load can cause during emergency braking that steel rope skids.Addressing the above problem best approach is to adopt permanent deceleration system.Because the braking oil pressure of this brake system can be adjustable continuously between minimum and maximum according to the deceleration value that monitors, constant with deceleration/decel is the influence that controlled target does not receive load variations.In addition, permanent brake snub can also significantly improve the impact of safety arrestment to personnel in mechanical equipment and the cage, is a kind of comparatively desirable brake mode.At present, the permanent checking brake that domestic main employing is made by middle letter heavy industry research and development because Hydraulic Elements adopt the import element more, wants to realize that permanent brake snub just needs to change a whole set of elevator system, costs an arm and a leg.Therefore the permanent deceleration system less than 5% of domestic use, and compare with external like product and to also have certain gap.
Mainly contain the Constant Deceleration Braking Systemfor Hoisting Machine that ABB and SIMAG two major companies produce abroad,, used widely owing to have high stable, plurality of advantages such as highly reliable.But its system complex, price be costliness and spare part difficulty more, and wants to realize that permanent brake snub need change a whole set of elevator system equally, and cost is higher.
Summary of the invention
Technical matters: the purpose of the utility model is the weak point that overcomes in the prior art, and a kind of simple in structure, permanent brake snub transfer device that reliability is high, cheap, easy to use is provided.
Technical scheme: the permanent brake snub transfer device of the utility model; Comprise PLC controller, the detection protector that links to each other with the PLC controller respectively and UPS back-up source; The brake disc speed signal is passed to the velometer of PLC controller; Be connected with the hydraulic control system that links to each other with brake disc on the described PLC controller, hydraulic control system is mainly by the G that links to each other with the B pipeline with the A pipeline of plate disc brake
1Change-over valve, G
2Change-over valve, energy storage, by pass valve and electro-hydraulic proportional valve constitute, wherein: connect G
1Be connected with a branch road I on the A pipeline of change-over valve or the B pipeline, be connected with check valve, I flow regulating valve and energy storage on the branch road I in turn, the port of energy storage is connected with compression indicator through the II flow regulating valve, is connected with the G that is in parallel with check valve on the branch road I
2Change-over valve is connected with the branch road II on the check valve fwd branch road I, is connected with by pass valve on the branch road II, is connected with the III flow regulating valve that is in parallel with by pass valve on the branch road II, is connected with the electro-hydraulic proportional valve that links to each other with the return pipe road on the pilot piping of by pass valve.
The branch road I entrance that connects on described A pipeline or the B pipeline is provided with shutoff valve; Be connected with filter on the described III flow regulating valve entrance pipe.
Beneficial effect: the utility model has increased by a cover transfer device on the basis of original constant force square brake system; Oil circuit is arranged simply, the valve piece is concentrated, safe and reliable; Need not change former hydraulic brake system and promptly can realize permanent brake snub function, cost is low, reliability is high, easy to maintenance.Kept former constant force square braking function simultaneously.The perseverance deceleration transfer device that can be used for mine hoist fault emergency braking.The utility model electric-control system is a core with the PLC controller, and the signal that is fed back by velometer has constituted the judgement under the various running statees, calculates and export the oil pressure of the best, reaches best control effect.And join corresponding UPS back-up source and form, under the situation that guarantees to have a power failure suddenly in full ore deposit, system still can normally move.Detect protector, realize to the utility model own I detect, can in time report to the police when breaking down.Major advantage has:
(1) single rope winding hoist constant force square glancing impact, deceleration/decel vary within wide limits, the problem that physical shock is big have been overcome;
(2) overcome the bigger friction type winder of unbalance load, constant force square glancing impact can cause the steel rope problem of slip;
(3) overcome change that the novel permanent deceleration system in a whole set of home and abroad costs an arm and a leg, spare part suffering, drawback that maintenance is big.
Description of drawings
Fig. 1 is the theory structure block diagram of the utility model.
Fig. 2 is the hydraulic control system scheme drawing of utility model.
Among the figure: the 1-change-over valve; The 2-check valve; The 3-flow regulating valve; The 4-energy storage; The 5-flow regulating valve; The 6-compression indicator; The 7-change-over valve; The 8-shutoff valve; The 9-by pass valve; The 10-filter; The 11-flow regulating valve; The 12-electro-hydraulic proportional valve.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further description:
As shown in Figure 1, the permanent brake snub transfer device of the utility model mainly is made up of PLC controller, detection protector, velometer and hydraulic control system.Wherein: the PLC controller is connected with hydraulic control system with detection protector, UPS back-up source, velometer respectively, and velometer is connected with brake disc respectively with hydraulic control system.As shown in the figure, hydraulic control system is mainly by the G that links to each other with the B pipeline with the A pipeline that leads to plate disc brake
1Change-over valve 1, G
2Change-over valve 7, energy storage 4, by pass valve 9 and electro-hydraulic proportional valve 12 constitute, and the A pipeline is connected with two groups of Pan Zha respectively with the B pipeline, and the branch road I entrance that connects on A pipeline or the B pipeline is provided with shutoff valve 8.When the mine hoist system reform, close shutoff valve 8, prevent that hydraulic oil from leaking outside, do not influence ordinary production work.Connect G
1Be connected with a branch road I on the A pipeline of change-over valve 1 or the B pipeline, be connected with check valve 2, I flow regulating valve 3 and energy storage 4 on the branch road I in turn, original system can directly be energy storage 4 repairings during through check valve 2 gig normal operation.The port of energy storage 4 is connected with compression indicator 6 through II flow regulating valve 5, is connected with the G that is in parallel with check valve 2 on the branch road I
2Change-over valve 7; Be connected with the branch road II on the check valve 2 fwd branch road I; Be connected with by pass valve 9 on the branch road II, be connected with the III flow regulating valve 11 that is in parallel with by pass valve 9 on the branch road II, be connected with filter 10 on III flow regulating valve 11 entrance pipes; Filter for molten 10 provides cleaning hydraulic oil for precision element electro-hydraulic proportional valve 12, guarantees the normal operation of electro-hydraulic proportional valve 12.Be connected with the electro-hydraulic proportional valve 12 that links to each other with the return pipe road on the pilot piping of by pass valve 9, the main body oil return has reduced the load of electro-hydraulic proportional valve 12 through by pass valve 9 oil sump tanks, improves system reliability and contamination resistance.
Principle of work: during the gig normal operation, open shutoff valve 8, hydraulic oil is energy storage 4 accumulation of energys through the branch road I; When gig broke down in well, original system motor and pump shut down, G
1Change-over valve 1 is charged, is communicated with A pipeline and B pipeline, and all dish lock oil pressure are consistent, and dish lock stressing conditions is the same.G
2Change-over valve 7 charged connection energy storages 4 are whole permanent brake snub loop repairing with by pass valve 9, and as the pressure source of permanent brake snub transfer device, a part enters to coil the lock drg, and a part flows back to fuel tank through by pass valve 9.Electro-hydraulic proportional valve 12 is as the priority valve of by pass valve 9; By the PLC controller according to velometer feedback with the continuous adjusting electro-hydraulic proportional valve 12 of the proportional electric signal of deceleration/decel; The control system oil pressure; And then realize continuous adjusting to lock torque, gig is stopped according to the deceleration/decel that the various factors of taking all factors into consideration sets.After gig stopped, energy storage 4 and by pass valve 9 were broken off in change-over valve 7 outages, and oil pressure remaining in the pipeline reduces to zero rapidly through original system, according to " safe coal rules " this moment lock torque greater than the requirement of three times of statical moments.
Claims (3)
1. permanent brake snub transfer device; Comprise PLC controller, the detection protector that links to each other with the PLC controller respectively and UPS back-up source; The brake disc speed signal is passed to the velometer of PLC controller; It is characterized in that: be connected with the hydraulic control system that links to each other with brake disc on the described PLC controller, hydraulic control system is mainly by the G that links to each other with the B pipeline with the A pipeline that leads to plate disc brake
1Change-over valve (1), G
2Change-over valve (7), energy storage (4), by pass valve (9) and electro-hydraulic proportional valve (12) constitute, wherein: connect G
1Be connected with a branch road I on the A pipeline of change-over valve (1) or the B pipeline; Be connected with check valve (2), I flow regulating valve (3) and energy storage (4) on the branch road I in turn; The port of energy storage (4) is connected with compression indicator (6) through II flow regulating valve (5), is connected with the G that is in parallel with check valve (2) on the branch road I
2Change-over valve (7); Be connected with the branch road II on check valve (2) the fwd branch road I; Be connected with by pass valve (9) on the branch road II; Be connected with the III flow regulating valve (11) that is in parallel with by pass valve (9) on the branch road II, be connected with the electro-hydraulic proportional valve (12) that links to each other with the return pipe road on the pilot piping of by pass valve (9).
2. permanent brake snub transfer device according to claim 1 is characterized in that: the branch road I entrance that connects on described A pipeline or the B pipeline is provided with shutoff valve (8).
3. permanent brake snub transfer device according to claim 1 is characterized in that: be connected with filter (10) on described III flow regulating valve (11) entrance pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192801U CN202130952U (en) | 2011-06-10 | 2011-06-10 | Constant deceleration brake conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192801U CN202130952U (en) | 2011-06-10 | 2011-06-10 | Constant deceleration brake conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202130952U true CN202130952U (en) | 2012-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120192801U Expired - Fee Related CN202130952U (en) | 2011-06-10 | 2011-06-10 | Constant deceleration brake conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202130952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275795A (en) * | 2011-06-10 | 2011-12-14 | 中国矿业大学 | Constant decelerating braking conversion device |
| CN102616534A (en) * | 2012-03-30 | 2012-08-01 | 太原科技大学 | Belt conveyor braking system and dynamic control method thereof |
-
2011
- 2011-06-10 CN CN201120192801U patent/CN202130952U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275795A (en) * | 2011-06-10 | 2011-12-14 | 中国矿业大学 | Constant decelerating braking conversion device |
| CN102275795B (en) * | 2011-06-10 | 2013-10-30 | 中国矿业大学 | Constant decelerating braking conversion device |
| CN102616534A (en) * | 2012-03-30 | 2012-08-01 | 太原科技大学 | Belt conveyor braking system and dynamic control method thereof |
| CN102616534B (en) * | 2012-03-30 | 2014-03-05 | 太原科技大学 | Belt conveyor braking system and dynamic control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20140610 |