CN1789752A - Wheel type explosion-proof hydraulic brake - Google Patents
Wheel type explosion-proof hydraulic brake Download PDFInfo
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- CN1789752A CN1789752A CN 200510048200 CN200510048200A CN1789752A CN 1789752 A CN1789752 A CN 1789752A CN 200510048200 CN200510048200 CN 200510048200 CN 200510048200 A CN200510048200 A CN 200510048200A CN 1789752 A CN1789752 A CN 1789752A
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Abstract
This invention relates to one wheel anti-explosion hydraulic brake, which comprises wheel brake rack and Pump hydraulic system and control device, wherein, the pump cylinder hydraulic system comprises hydraulic pump, single oil cylinder, overflow valve, anti-explosion magnetic valve, single valve, pressure meter switch, proportion flow save valve, proportion pressure valve, anti-explosion motor, filter, cylinder oil case with air filter and system oil case; the control device comprises transducer, breaker, alternating touch device, heat relay, leakage protector, direct drive power, programmable controller, local isolation grating and point button and non-touch near switch.
Description
Technical field
The present invention relates to a kind of fro hydraulic driving machinery brake sticking brake device.
Background technique
Be applied in various breaks mechanically at present mainly based on Normally closed type.For example application number is the Chinese patent " wheel type explosion-proof hydraulic mechanical brake " of CN02135847.8, lack effective control brake function, the braking moment size that it produced only depends on the pretension degree of the compression brake spring when break declutches, have only a constant braking moment, obviously can not adapt to actual demand such as frequent load that changes of machine and periphery.Though there is method can realize the level braking, for example the patent No. is a CN92231346.6 Normally closed type multistage brake device, but for the inclination Belt Conveyors, the coal mine Belt Conveyors that has a down dip particularly, its adhesive tape of several kilometers is a kind of elastomer, and be to be in tilted layout, sometimes in the stopping brake and the start-up course that declutches, a considerable amount of materials have also been deposited on the adhesive tape, as in this case, use general normally closed brake or use that a grade break is arranged, all can give brake bracket and the very big impact of hydraulic system, braking device and inclination Belt Conveyors are brought very big harm, even hinder production.Therefore necessarily require break to carry out the stepless speed regulation operation in the stopping brake process, certain pairing braking moment also is stepless adjustable, and existing have grade braking device obviously not match with this operating mode.Simultaneously, grade braking device is arranged in structure and control, whole hydraulic system is too complicated, and automatically controlled requirements is high, therefore mostly be greatly all need on three motor driving and each live axle to arrange one overlap on the inclination Belt Conveyors of braking device very inapplicable.
Summary of the invention
Purpose of the present invention is exactly the deficiency that overcomes above-mentioned prior art, and a kind of wheel type explosion-proof hydraulic brake that has stepless speed regulation and stepless brake function and can realize the soft braking of many motor driving machinery with a cover break is provided.
Wheeled brake bracket, pump-cylinder hydraulic system and control gear have been the present invention includes; Wheeled brake bracket is the brake bracket of a kind of pair of brake shoe, and its final stage lever that declutches is a set square triangle, and two articulating points of its left side upper and lower end directly are connected with left and right brake arm by pull bar respectively, and an articulating point of right-hand member then is used for linking to each other with the device that declutches; Pump-cylinder hydraulic system includes cartridge type fuel tank and system's fuel tank of oil hydraulic pump, one-way cylinder, relief valve, anti-explosion is electromagnetic ball valve, one-way valve, pressure meter switch, proportional throttle valve, proportional pressure valve, anti-explosion motor, filter, band air-strainer; Anti-explosion motor links to each other with oil hydraulic pump by coupling, and the oil hydraulic pump inlet port links to each other with fuel tank, and the oil hydraulic pump oil drain out links to each other with proportional pressure valve, one-way valve; The proportional pressure valve liquid return hole links to each other with fuel tank, the one-way valve liquid outlet links to each other with anti-explosion is electromagnetic ball valve liquid entering hole with one-way cylinder respectively, anti-explosion is electromagnetic ball valve liquid return hole links to each other with fuel tank through proportional pressure valve, the monaural ring of one-way cylinder body lower end links to each other with the articulating point of lever set square triangle right-hand member, the ears ring of piston rod upper end links to each other with the base plate hinged of brake bracket, and the feed flow oil pocket of one-way cylinder links to each other with Hydraulic Power Transmission System.Control gear includes transformer, circuit breaker, A.C. contactor, thermorelay, relay, earth leakage protective device, direct drive power supply, programmable controller, display floater, intrinsic safety isolated gate, inching button and non-contact type approach switch; Circuit breaker connects motor behind A.C. contactor and thermorelay; Non-contact type approach switch inserts programmable controller behind the intrinsic safety isolated gate.
Non-contact type approach switch is installed in the side of one-way cylinder, comes the folding degree of limit stop, and controls whole system with signal for programmable controller.The cartridge type fuel tank of band air-strainer is installed in the non-feed flow oil pocket of one-way cylinder.
The present invention is suitable for using on the inclination Belt Conveyors.With existing normally closed brake or there is grade braking device relatively,, make braking system can reach the effect of stepless speed regulation and stepless brake fully owing to used proportional pressure valve.Adopt the anti-explosion is electromagnetic ball valve that reliable pressure maintaining performance is arranged, avoided the problem of interior leakage fully, obvious energy-saving effect is arranged, can satisfy of the specific (special) requirements of some machinery, as the Gantry crane wind prevention braking of open-air use to braking.This device is instantaneous work, declutches to utilize after putting in place hydraulic element to carry out pressurize to continue to declutch realizing.Adopt band air-strainer cartridge type fuel tank not only can bonding feed flow oil cylinder can proper functioning; and protected non-feed flow oil pocket very effectively; can lubricate each sliding pair well, can prevent that again the dust that produces in the abominable operating environment from entering hydraulic system.PLC is the automatical control system of core, has not only guaranteed the on-line monitoring and the malfunction alarm of break work overall process, can carry out exchanging of data and signal with the control system that is braked system simultaneously, helps forming the centralized control of big system.Easy to use, operation easily can realize the soft braking of many motor driving machinery with a cover break.
Description of drawings
Fig. 1 is a hydraulic scheme of the present invention.
Fig. 2 is mechanical part of the present invention and wheeled brake bracket structural representation.
Fig. 3 is automatical control system figure of the present invention.
Among the figure: 1, proportional throttle valve, 2, one-way valve, 3, pressure gauge, 4, pressure meter switch, 5, oil hydraulic pump, 6, one-way cylinder, 7, fuel tank, 8, the anti-explosion is electromagnetic ball valve, 9, proportional pressure valve, 10, relief valve, 11, anti-explosion motor, 12, filter, 13, fuel tank, 14, left brake arm, 15, pull bar, 16, brake spring, 17, lever set square triangle, 18, right brake arm, 19, cylinder body, 20, the barrel type tank of band air-strainer, 21, piston rod, 22, non-contact type approach switch, 23, near the switch scaffold, 24, brake shoe, 25, Brake drum.
Embodiment
Anti-explosion is electromagnetic ball valve 8 adopts the bi-bit bi-pass Solenoid ball valve, and it is the PLC of CPU224 type that programmable controller adopts the elementary cell in the SIEMENS S7-200 series.
With 660V power supply, anti-explosion is electromagnetic ball valve 8, the power line of proportional pressure valve 9 is connected with electric control cubicle with signaling line, and brake spring 16 is required the pretension distortion according to specified braking moment, and the braking force of this moment is specified braking force.When one-way cylinder 6 work, piston rod 21 makes the right-hand member of brake bracket final stage lever set square triangle 17 be subjected to a thrust that makes progress, and passes on the left and right sides brake arm 14,18 through pull bar 15.Oil pressure by one-way cylinder 6 is the power of declutching to the active force on the left and right sides brake arm 14,18, and its direction is opposite with specified braking force direction, regulates the system pressure of relief valve 10 controlled hydraulic system then, guarantees declutching fully of break.
With the oil cylinder of the single extension bar of single-acting as the oil cylinder that declutches, be installed on the brake bracket vertically, the monaural ring of its cylinder body 19 upper ends links to each other with the articulating point of lever set square triangle 17 right-hand members, the ears ring of piston rod 21 lower ends links to each other with the base plate hinged of brake bracket, the feed flow oil pocket of oil cylinder links to each other with Hydraulic Power Transmission System, make the oil cylinder work of declutching by electric control operation and hydraulic transmission, the cartridge type fuel tank 20 of band air-strainer is installed in the non-feed flow oil pocket of one-way cylinder.
Before device start, non-contact type approach switch 22 sends pulse signal all the time, makes PLC be defined as brake bracket brake shoe 24 and is the band-type brake state with Brake drum 25.When haulage device starts, upper-position unit is given actuating signal of control section PLC of wheel type explosion-proof hydraulic brake, when the control section inspection equipment just often, anti-explosion is electromagnetic ball valve 8, motor 11 drives oil hydraulic pump 5 and passes through one-way valve 2 to one-way cylinder 6 oilings, because this moment, hydraulic system was the system pressure that relief valve 10 is set up, the power that declutches is greater than specified braking force, and the power of declutching will overcome specified braking force and continue pressure spring 16.Make on the cylinder body 19 and move, gradually brake shoe 24 is separated with Brake drum 25.After cylinder body 19 runs to certain stroke (adjustable) according to actual conditions, non-contact type approach switch 22 stops to send pulse signal, the process that declutches finishes, and motor 11 outages also are used for keeping the state that declutches of mechanical brake by the pressurize of one-way valve 2, make the haulage device proper functioning.In this process, PLC does not supply with proportional pressure valve 9 electrical signal, and proportional pressure valve 9 is in power failure state.When haulage device needs ramp to stop, upper-position unit makes motor 11 out of service, this moment anti-explosion is electromagnetic ball valve 8 dead electricity, proportional pressure valve 9, the fluid that one-way cylinder is 6 li flows back to fuel tank through anti-explosion is electromagnetic ball valve 8, proportional pressure valve 9, in this braking process, the expansion module of PLC comes the pressure of control ratio pressure valve 9 according to the belt speed signal of Belt Conveyors, and (belt speed is fast, pressure is high; Belt speed is slow, pressure is low).This pressure continues to promote cylinder body 19 by piston rod 21 and offsets a part of braking force, and the acceleration when reducing band-type brake is extenuated impact.When the belt speed signal that detects Belt Conveyors when the expansion module of PLC was zero, proportional pressure valve 9 was maintained to certain force value, and the braking moment of this moment will be less than specified braking moment.Play the braking moment under normal state.After The whole control is partly cut off the power supply, proportional pressure valve 9 will reach minimum pressure values, and this moment, braking moment equaled specified braking moment, implement braking fully.Because in the stopping brake process, the belt speed signal is a continuous signal, proportional pressure valve 9 is continuous operation, and it is stepless adjustable so just to have reached wheel type explosion-proof hydraulic brake band-type brake speed in braking process, braking moment stepless adjustable.
The 660V power supply inserts circuit breaker, transformer, and transformer meets direct drive power supply ZQD, detection of electrical leakage power supply LJD and earth leakage protective device LDB after becoming 220V, enters PLC near switch JJKG through intrinsic safety isolated gate BAGL.Direct drive power supply ZQD powers to PLC, and PLC controls the keying of motor M and Solenoid ball valve DF according to program.After the relay coil KA3 adhesive, contact 1KA3 closure, anti-explosion is electromagnetic ball valve DF1 conducting, hydraulic oil acts on one-way cylinder 6 through anti-explosion is electromagnetic ball valve DF1, and cylinder body 19 rises.
Claims (3)
1. a wheel type explosion-proof hydraulic brake comprises wheeled brake bracket, it is characterized in that also comprising pump-cylinder hydraulic system and control gear; Pump-cylinder hydraulic system includes cartridge type fuel tank and system's fuel tank of oil hydraulic pump, one-way cylinder, relief valve, anti-explosion is electromagnetic ball valve, one-way valve, pressure meter switch, proportional throttle valve, proportional pressure valve, anti-explosion motor, filter, band air-strainer; Anti-explosion motor links to each other with oil hydraulic pump by coupling, and the oil hydraulic pump inlet port links to each other with fuel tank, and the oil hydraulic pump oil drain out links to each other with proportional pressure valve, one-way valve; The proportional pressure valve liquid return hole links to each other with fuel tank, and the one-way valve liquid outlet links to each other with anti-explosion is electromagnetic ball valve liquid entering hole with one-way cylinder respectively, and anti-explosion is electromagnetic ball valve liquid return hole links to each other with fuel tank through proportional pressure valve; Control gear includes transformer, circuit breaker, A.C. contactor, thermorelay, relay, earth leakage protective device, direct drive power supply, programmable controller, display floater, intrinsic safety isolated gate, inching button and non-contact type approach switch; Circuit breaker connects motor behind A.C. contactor and thermorelay; Non-contact type approach switch inserts programmable controller behind the intrinsic safety isolated gate; Non-contact type approach switch is installed in the side of one-way cylinder, and the cartridge type fuel tank of band air-strainer is installed in the non-feed flow oil pocket of one-way cylinder.
2. wheel type explosion-proof hydraulic brake as claimed in claim 1 is characterized in that the anti-explosion is electromagnetic ball valve adopts the bi-bit bi-pass Solenoid ball valve.
3. wheel type explosion-proof hydraulic brake as claimed in claim 1, it is characterized in that wheeled brake bracket is the brake bracket of a kind of pair of brake shoe, its the final stage lever that declutches is a set square triangle, two articulating points of its left side upper and lower end directly are connected with left and right brake arm by pull bar respectively, and an articulating point of right-hand member then is used for linking to each other with the device that declutches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100482005A CN100350168C (en) | 2005-12-16 | 2005-12-16 | Wheel type explosion-proof hydraulic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100482005A CN100350168C (en) | 2005-12-16 | 2005-12-16 | Wheel type explosion-proof hydraulic brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1789752A true CN1789752A (en) | 2006-06-21 |
| CN100350168C CN100350168C (en) | 2007-11-21 |
Family
ID=36787807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100482005A Expired - Fee Related CN100350168C (en) | 2005-12-16 | 2005-12-16 | Wheel type explosion-proof hydraulic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100350168C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852283A (en) * | 2010-05-24 | 2010-10-06 | 镇江中浦冷辗科技有限公司 | Hydraulic stepless speed regulating device |
| CN104900371A (en) * | 2015-06-07 | 2015-09-09 | 张莉萍 | Low-power consumption novel brake electromagnet without working noise |
| CN106998115A (en) * | 2017-04-20 | 2017-08-01 | 哈尔滨理工大学 | Electro-hydraulic driving friction load damping unit and its brake control method |
| CN108488275A (en) * | 2018-03-27 | 2018-09-04 | 张家港港务集团有限公司港盛分公司 | Improve the remodeling method and reconstruction structure of door machine rotary braking reliability |
| CN111930070A (en) * | 2020-10-09 | 2020-11-13 | 亿昇(天津)科技有限公司 | Control method of positive pressure explosion-proof system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101255898B (en) * | 2008-04-12 | 2010-04-21 | 太原理工大学 | On-off synchronous control rail-hanging type brake |
| DE202022100474U1 (en) * | 2022-01-27 | 2023-05-09 | Dellner Bubenzer Germany Gmbh | Braking system for a rail chassis of a handling means |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2023065C3 (en) * | 1970-05-12 | 1979-12-13 | Gerhard 5905 Freudenberg Bubenzer | Brake actuation device with brake springs, a servo release device and a hydraulic delay cylinder |
| CN2168986Y (en) * | 1992-08-28 | 1994-06-15 | 孔繁华 | Normally closed multi-stage bralce |
| CN2605418Y (en) * | 2001-06-29 | 2004-03-03 | 关源勇 | Full-function normally-closed electric hydraulic-block type safety brake |
| JP2003041629A (en) * | 2001-07-31 | 2003-02-13 | Hitachi Constr Mach Co Ltd | Parking-brake hydraulic circuit for slewing base |
| CN1219160C (en) * | 2002-11-13 | 2005-09-14 | 太原理工大学 | Hydraulic arrester with capabilities of speed adjustment and soft braking |
| CN1420292A (en) * | 2002-12-03 | 2003-05-28 | 寇子明 | Wheel type explosion-proof hydraulic mechanical brake |
-
2005
- 2005-12-16 CN CNB2005100482005A patent/CN100350168C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852283A (en) * | 2010-05-24 | 2010-10-06 | 镇江中浦冷辗科技有限公司 | Hydraulic stepless speed regulating device |
| CN104900371A (en) * | 2015-06-07 | 2015-09-09 | 张莉萍 | Low-power consumption novel brake electromagnet without working noise |
| CN106998115A (en) * | 2017-04-20 | 2017-08-01 | 哈尔滨理工大学 | Electro-hydraulic driving friction load damping unit and its brake control method |
| CN108488275A (en) * | 2018-03-27 | 2018-09-04 | 张家港港务集团有限公司港盛分公司 | Improve the remodeling method and reconstruction structure of door machine rotary braking reliability |
| CN111930070A (en) * | 2020-10-09 | 2020-11-13 | 亿昇(天津)科技有限公司 | Control method of positive pressure explosion-proof system |
| CN111930070B (en) * | 2020-10-09 | 2021-01-01 | 亿昇(天津)科技有限公司 | Control method of positive pressure explosion-proof system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100350168C (en) | 2007-11-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20071121 Termination date: 20111216 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20060621 Assignee: Taiyuan BST Machine Electricity Liquid Engineering Co., Ltd. Assignor: Taiyuan University of Technology Contract record no.: 2010990000340 Denomination of invention: Wheel type explosion-proof hydraulic brake Granted publication date: 20071121 License type: Exclusive License Record date: 20100602 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |