CN102198909A - Brake control device directly driven by permanent magnet synchronous motor for automatic staircase - Google Patents
Brake control device directly driven by permanent magnet synchronous motor for automatic staircase Download PDFInfo
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- CN102198909A CN102198909A CN 201110046553 CN201110046553A CN102198909A CN 102198909 A CN102198909 A CN 102198909A CN 201110046553 CN201110046553 CN 201110046553 CN 201110046553 A CN201110046553 A CN 201110046553A CN 102198909 A CN102198909 A CN 102198909A
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Abstract
The invention provides a brake control device directly driven by a permanent magnet synchronous motor for an automatic staircase, for solving the problem that in the prior art, the same brake moment cannot satisfy the brake distance demands under no load and full load conditions. The brake control device comprises an electromagnetic brake and brake arms, wherein the brake arms are provided with a compression spring and a brake shoe and are assembled at the circumference of a brake disc. The brake control device is technically characterized in that: self-balanced cylinders for controlling the brake moment of the brake arm are installed between two ends of a fixed seat of the electromagnetic brake and the inner side of the brake arm; the cylinders are fixed at the inner side of the brake arm through a connection bolt; one end of a piston rod is connected with the end of the fixed seat; and the other end of the piston rod is assembled on the outer side of the brake arm through the compression spring and a fastening part. Compared with the like brake control device, the brake control device in the invention is more rational in design, simpler and compacter in structure, more reliable in brake, more convenient to control and regulate, and easier to satisfy demands of the standard brake distance and brake reducing demands under the no load and full load conditions; and the brake control device notably reduces the manufacturing and maintenance cost.
Description
Technical field
The present invention relates to a kind of braking force control system of escalator, the self-balancing type cylinder that particularly a kind of employing is arranged on service brake compression spring place changes lock torque gradually, Control work drg compression spring also is applicable to the control of braking of moving sidewalk to the braking force control system of the permagnetic synchronous motor direct drive escalator of the application force of brake disc.The control of braking technical field that belongs to escalator and moving sidewalk.
Background technology
According among the new edition European standard EN115-1:2008 " manufacturing of escalator and moving sidewalk with install safety standard " about the requirement of stop distance, service brake should be able to make escalator with brake load and moving sidewalk slow down effectively to stop, and makes it keep quiescence.Deceleration/decel should not surpass 1m/s
2, and the stop distance satisfies: the stop distance is 0.2m～1.0m during command speed 0.5m/s; The stop distance is 0.3m～1.3m during command speed 0.65m/s; The stop distance is 0.4m～1.5m during command speed 0.75m/s.Existing escalator adopts Asynchronous Motor Driving, and is higher because of its synchronous speed, is generally 1000r/min or 1500r/min, thus must dispose retarder, and service brake is set at the high speed axle head.Because motor speed is higher,, increase flywheel even also can adopt at motor shaft end when differing big, with the requirement that realizes that its inertia is more or less the same total unloaded rotor inertia with the at full load system is more or less the same.But its parts are more, and the fitting work amount is big, and especially efficient is low is its maximum shortcoming.
Adopt permagnetic synchronous motor to drive escalator, can save retarder, the work capacity of processing and assembling reduces, and need not the drop-gear box lubricating oil, reduced environmental pollution, and noise is low, and particularly efficient has obtained increasing substantially.Because the output speed of permagnetic synchronous motor is lower, be generally about 60r/min, escalator is converted the rotor inertia that rotor inertia on the brake axle and at full load convert on the brake axle and is differed greatly when zero load.Under the situation that does not dispose mass flywheel, if make lock torque satisfy stop required distance under the full load conditions, the stop when then unloaded is apart from the out of reach requirement; On the contrary, if make lock torque satisfy unloaded stop required distance, then the stop of at full load distance will be greater than requiring.It is the requirement that same lock torque can't satisfy stop distance under unloaded and the full-loading condition simultaneously.For addressing the above problem, patent publication No. be CN 1477049 A's " permagnetic synchronous motor drives the method () that escalator and moving sidewalk are realized the stop required distance ", a kind of double embrace lock timesharing effect of adopting is disclosed, size according to load, perhaps drg effect, perhaps two drgs move simultaneously, and the size of dependence change lock torque satisfies the stop required distance under the different loads situation.Publication number be CN 1477050 A's " permagnetic synchronous motor drives the method (two) that escalator and moving sidewalk are realized the stop required distance ", also disclose a kind of mode that increases the high speed inertial flywheel that adopts and realized above-mentioned purpose.The former need be provided with 2 cover drgs, and load-measuring device need be set.The latter not only needs to increase flywheel, and need set up the throw-over device.The structure of above-mentioned stop method is all complicated, has correspondingly increased manufacturing and maintenance cost.
Summary of the invention
The braking force control system that the purpose of this invention is to provide a kind of permagnetic synchronous motor direct drive escalator, the same lock torque that has solved the prior art existence can't satisfy the problem of stop required distance under unloaded and the full-loading condition simultaneously, remove and keep the stable drive that the permagnetic synchronous motor driving has, the efficient height, outside the advantages such as noise is low, it is compared with similar braking force control system, reasonable in design, simple in structure, compact, braking is reliable, control and regulation are convenient, difference by self-balancing type cylinder and ambient atmosphere pressure changes lock torque gradually, realize satisfying simultaneously under unloaded and the full-loading condition stop distance of standard code and the requirement of braking deceleration easily, significantly reduce and make and maintenance cost.
The technical solution adopted in the present invention is: the braking force control system of this permagnetic synchronous motor direct drive escalator comprises magnet stopper and is assembled in the brake control lever that has compression spring and brake shoe of brake disc periphery respectively, its technical essential is: the permanent seat two ends of described magnet stopper respectively and the self-balancing type cylinder of control brake arm lock torque is set between the described brake control lever inboard, the cylinder body of described self-balancing type cylinder is fixed on the inboard of described brake control lever by attachment bolt, piston rod one end of described self-balancing type cylinder is connected to the end of described permanent seat, and the other end of described piston rod is assembled in the outside of described brake control lever by described compression spring and fastener.
Suction hole flow regulating valve that the cylinder body setting of described self-balancing type cylinder is communicated with described inner chamber of cylinder block and deflation hole electromagnetic valve.
Advantage and good effect that the present invention has are: because the braking force control system of this permagnetic synchronous motor direct drive escalator is not increase drg, do not increase under the preceding topic of braking flywheel yet, only respectively and the self-balancing type cylinder of control brake arm lock torque is set between the brake control lever inboard at the permanent seat two ends of magnet stopper, it is compared with similar braking force control system, need not to adopt source of the gas, do not need load-measuring device, so it is reasonable in design, simple in structure, compact, braking is reliable, can significantly reduce and make and maintenance cost.It not only keeps permagnetic synchronous motor and drives advantages such as the stable drive, efficient height, the noise that have are low, the same lock torque that has solved the prior art existence can't satisfy the problem of stop required distance under unloaded and the full-loading condition simultaneously, and in braking procedure, only utilize the variation of internal pressure in the self-balancing type cylinder moving process, control brake device compression spring just can be realized the brake request of stop escalator standard code to the application force of brake disc gradually.Because of it adopts permagnetic synchronous motor direct drive escalator, difference by self-balancing type cylinder and ambient atmosphere pressure changes lock torque gradually, compress brake disc, so control and regulation are convenient, be easy to realize satisfying simultaneously under unloaded and the full-loading condition stop distance of standard code and the requirement of braking deceleration, can promote permagnetic synchronous motor direct drive escalator to be used widely.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the A portion structure for amplifying scheme drawing of Fig. 1;
Fig. 3 is a self-balancing type cylinder operation principle schematic.
Sequence number explanation among the figure: 1 self-balancing type cylinder, 2 compression springs, 3 magnet stoppers, 4 brake control levers, 5 permanent seats, 6 attachment bolts, 7 deflation hole electromagnetic valves, 8 suction hole flow regulating valve, 9 cylinder bodies, 10 piston rods, 11 brake discs.
The specific embodiment
Describe concrete structure of the present invention in detail according to Fig. 1～3.The braking force control system of this permagnetic synchronous motor direct drive escalator comprises magnet stopper 3, is assembled in the brake control lever that has compression spring 2 and brake shoe 4 of brake disc 11 peripheries respectively, self-balancing type cylinder 1 part such as grade.Wherein the two ends of the permanent seat 5 of magnet stopper 3 respectively and the self-balancing type cylinder 1 of control brake arm 4 lock torques is set between brake control lever 4 inboards.The cylinder body 9 of self-balancing type cylinder 1 is fixed on the inboard of brake control lever 4 by attachment bolt 6.Piston rod 10 1 ends of self-balancing type cylinder 1 are connected to the end of permanent seat 5, and the other end of piston rod 10 is assembled in the outside of brake control lever 4 by compression spring 2 and fastener.In order to realize self-balancing type cylinder 1 automatic guidance to internal pressure in moving process, the cylinder body 9 of self-balancing type cylinder 1 is provided with suction hole flow regulating valve 8 and the deflation hole electromagnetic valve 7 that is communicated with its inner chamber.
The principle of work of self-balancing type cylinder 1 is as follows: when escalator started operation, magnet stopper 3 got electric, overcame the spring force of compression spring 2, and the cylinder body 9 that drives self-balancing type cylinder 1 moves vertically, and makes brake shoe leave brake disc 11.This moment cylinder body 9 deflation hole electromagnetic valve 7 electric, deflation hole is opened, make self-balancing type cylinder 1 be in exhaust condition, because of the inside and outside pressure unanimity of the cylinder body 9 of self-balancing type cylinder 1, so the moving resistance of cylinder body 9 can be ignored, escalator normally moves.When escalator is out of service, magnet stopper 3 dead electricity, this moment cylinder body 9 also dead electricity thereupon of deflation hole electromagnetic valve 7, with vent closure, brake control lever 4 is under the effect of compression spring 2, the cylinder body 9 that drives self-balancing type cylinder 1 moves vertically, make self-balancing type cylinder 1 be in suction condition, because deflation hole electromagnetic valve 7 is closed at this moment, substantially be in vacuum state in the cylinder body 9 of self-balancing type cylinder 1, so push down 11 initial stages of brake wheel at the brake shoe of brake control lever 4, self-balancing type cylinder 1 has been offset the application force of a part of compression spring 2, the cylinder body 9 of self-balancing type cylinder 1 continues air-breathing by suction hole flow regulating valve 8, cylinder body 9 inside and outside pressure unanimities up to self-balancing type cylinder 1, the application force of 1 pair of compression spring 2 of self-balancing type cylinder reduces to zero, and it is maximum that lock torque reaches, the braking escalator.Because of escalator for different hoisting depths, only by regulating suction hole flow regulating valve 8, regulate the air inlet hole size, can in the stop process, realize control to lock torque, therefore, easy to adjust, be easy to realize satisfying simultaneously under unloaded and the full-loading condition stop distance of standard code and the requirement of braking deceleration.
Claims (2)
1. the braking force control system of a permagnetic synchronous motor direct drive escalator, comprise magnet stopper and be assembled in the brake control lever that has compression spring and brake shoe of brake disc periphery respectively, it is characterized in that: the permanent seat two ends of described magnet stopper respectively and the self-balancing type cylinder of control brake arm lock torque is set between the described brake control lever inboard, the cylinder body of described self-balancing type cylinder is fixed on the inboard of described brake control lever by attachment bolt, piston rod one end of described self-balancing type cylinder is connected to the end of described permanent seat, and the other end of described piston rod is assembled in the outside of described brake control lever by described compression spring and fastener.
2. according to the braking force control system of claims 1 described permagnetic synchronous motor direct drive escalator, it is characterized in that: suction hole flow regulating valve that the cylinder body setting of described self-balancing type cylinder is communicated with described inner chamber of cylinder block and deflation hole electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110046553 CN102198909A (en) | 2011-02-28 | 2011-02-28 | Brake control device directly driven by permanent magnet synchronous motor for automatic staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110046553 CN102198909A (en) | 2011-02-28 | 2011-02-28 | Brake control device directly driven by permanent magnet synchronous motor for automatic staircase |
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| Publication Number | Publication Date |
|---|---|
| CN102198909A true CN102198909A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110046553 Pending CN102198909A (en) | 2011-02-28 | 2011-02-28 | Brake control device directly driven by permanent magnet synchronous motor for automatic staircase |
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| Country | Link |
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| CN (1) | CN102198909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112816A1 (en) * | 2015-01-14 | 2016-07-21 | 北京升华电梯有限公司 | Pneumatic brake releasing apparatus used on elevator hoisting machine |
| CN113581057A (en) * | 2021-06-11 | 2021-11-02 | 北京航天发射技术研究所 | Locking method and device of locking mechanism |
| CN113586626A (en) * | 2021-08-27 | 2021-11-02 | 嘉兴南洋职业技术学院 | Fan blade rotating shaft brake of wind generating set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131840A (en) * | 1980-03-19 | 1981-10-15 | Hitachi Ltd | Braking device |
| US5265701A (en) * | 1991-03-20 | 1993-11-30 | Hitachi, Ltd. | Elevator with means for controlling upward and downward movement of cage |
| CN1477050A (en) * | 2003-01-15 | 2004-02-25 | 上海三菱电梯有限公司 | Permanent magnetic synchronous motor driven automatic escalator and method for implcmenting regular stopping distance requirement for automatic pavement |
| CN201626752U (en) * | 2010-03-17 | 2010-11-10 | 郭自刚 | Band-type brake elevator traction machine with mechanical buffering device |
| CN201961946U (en) * | 2011-02-28 | 2011-09-07 | 沈阳博林特电梯股份有限公司 | Permanent magnet synchronous motor direct drive and brake control device for escalator |
-
2011
- 2011-02-28 CN CN 201110046553 patent/CN102198909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131840A (en) * | 1980-03-19 | 1981-10-15 | Hitachi Ltd | Braking device |
| US5265701A (en) * | 1991-03-20 | 1993-11-30 | Hitachi, Ltd. | Elevator with means for controlling upward and downward movement of cage |
| CN1477050A (en) * | 2003-01-15 | 2004-02-25 | 上海三菱电梯有限公司 | Permanent magnetic synchronous motor driven automatic escalator and method for implcmenting regular stopping distance requirement for automatic pavement |
| CN201626752U (en) * | 2010-03-17 | 2010-11-10 | 郭自刚 | Band-type brake elevator traction machine with mechanical buffering device |
| CN201961946U (en) * | 2011-02-28 | 2011-09-07 | 沈阳博林特电梯股份有限公司 | Permanent magnet synchronous motor direct drive and brake control device for escalator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112816A1 (en) * | 2015-01-14 | 2016-07-21 | 北京升华电梯有限公司 | Pneumatic brake releasing apparatus used on elevator hoisting machine |
| CN105836651A (en) * | 2015-01-14 | 2016-08-10 | 升华电梯有限公司 | Air brake removing device used on elevator traction machine |
| US10228032B2 (en) | 2015-01-14 | 2019-03-12 | BEIJING SUNWA ELEVATOR Co., Ltd | Pneumatic brake release apparatus used on elevator traction machine |
| CN113581057A (en) * | 2021-06-11 | 2021-11-02 | 北京航天发射技术研究所 | Locking method and device of locking mechanism |
| CN113586626A (en) * | 2021-08-27 | 2021-11-02 | 嘉兴南洋职业技术学院 | Fan blade rotating shaft brake of wind generating set |
| CN113586626B (en) * | 2021-08-27 | 2023-05-02 | 嘉兴南洋职业技术学院 | Wind turbine blade rotating shaft brake |
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Application publication date: 20110928 |