CN209143573U - A kind of elevator brake to cut off self-lock - Google Patents

Abstract

The utility model discloses a kind of elevator brakes to cut off self-lock, belong to elevator brake field, including brake main body, traction machine shell, electricity draw mechanism driving wheel and magnetic apparatus, and the two sides that electricity draws mechanism driving wheel are fixedly installed with brake arm.The elevator brake that this kind cuts off self-lock, coil block is fixedly installed in the middle part of magnetic apparatus, limit switches are fixedly mounted in the front of magnetic apparatus, coil block is fixedly connected with limit switch, after the power-off of brake main body stops working, the magnetic field force that limit switch is subject to will do it releasing, so that coil block meeting automatic spring, coil block can be fixed between dynamic iron core and static iron core, after brake main body is re-energised, the resistance of coil block is larger, to hinder electric current, so that electric current can not pass through after brake main body is powered, to which work can not be recovered immediately, it avoids elevator and generates security risk, realize elevator brake power-off after be able to carry out it is self-locking.

Description

A kind of elevator brake to cut off self-lock

Technical field

The utility model relates to elevator brake field, in particular to a kind of elevator brake to cut off self-lock.

Background technique

Elevator brake is a kind of device for being ensured to elevator safety, including brake apparatus, brake plate and electricity Machine, brake apparatus generates bi-directional electromagnetic thrust when energization, is detached from brake plate rotating part, and electromagnetic force disappears when power-off, outside Under the action of adding tripping spring pressure, power loss braking is formed.

Authorization Notice No. is that the Chinese patent of CN104781174A discloses a kind of elevator brake, including first, second Brake lining, the first biasing member and the first actuator, the first actuator its be configured to be energized time shift in the first actuator The first brake lining is moved to de-orbit, brake may be configured to be mounted on the lift car of elevator device, but existing Elevator brake, in the process of running, if short circuit occurs suddenly for circuit, device can not carry out self-locking, cause after being re-energised, electricity Terraced brake can recover immediately work, so that there are security risks.

Utility model content

In view of the deficienciess of the prior art, the purpose of the utility model is to provide a kind of elevator brakes to cut off self-lock Device solves existing elevator brake, and in the process of running, if short circuit occurs suddenly for circuit, device can not carry out self-locking, leads After cause is re-energised, elevator brake can recover immediately work, thus there are security risk, and after powering off elevator can not automatically into The problem of row braking.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of electricity to cut off self-lock Terraced brake, including brake main body, traction machine shell, electricity draw mechanism driving wheel and magnetic apparatus, and the electricity draws the two of mechanism driving wheel Side is fixedly installed with brake arm, and the lower end surface of the magnetic apparatus is fixedly installed with magnetic base, and the inside of the magnetic apparatus is solid Dingan County is equipped with dynamic iron core, and the inside of the magnetic apparatus is fixedly installed with static iron core, and the dynamic iron core is located on the right side of static iron core, described Coil block is fixedly installed in the middle part of magnetic apparatus, limit switches, the coil group is fixedly mounted in the front of the magnetic apparatus Part is fixedly connected with limit switch.

Further, spacer is fixedly connected on the right side of the dynamic iron core, the internal diameter of the spacer is greater than the interior of dynamic iron core Diameter, and the length of spacer is equal to the one third of entire dynamic iron core length.

Further, the inner wall of the magnetic apparatus two sides is closely fitted with friction plate, and the friction plate is symmetrical set In magnetic apparatus.

Further, the lower end surface of the traction machine shell is fixedly mounted there are two voussoir, and two voussoirs are symmetrically set It sets on traction machine shell, the lower end surface of the voussoir is fixedly installed with washer, and the cross-sectional area of washer is equal to the cross of voussoir Sectional area.

Further, the junction that the traction machine shell and electricity draw mechanism driving wheel is fixedly installed with brake scotch, the system Dynamic watt is drawn mechanism driving wheel central axis with electricity and is in same level.

Further, the inside of the brake arm is fixedly installed with brake arm, and the upper surface of the brake arm is through connection There is brake bar, the inside of the brake bar, which is run through, is connected with mandril, and mandril is fixedly connected with magnetic apparatus.

Further, the two sides of the brake arm are fixedly installed with traction rope interconnecting piece, two traction rope connections Portion is in " T-shaped ".

Further, the electricity, which draws, is fixedly installed with wrapping post in the middle part of mechanism driving wheel, the wrapping post and electricity draw mechanism The concentric setting of driving wheel, and the surrounding of wrapping post is fixedly installed with limit card slot.

In conclusion the utility model has the following beneficial effects:

1, the elevator brake that this kind cuts off self-lock, the lower end surface of magnetic apparatus are fixedly installed with magnetic base, magnetic apparatus Inside is fixedly installed with dynamic iron core, and the inside of magnetic apparatus is fixedly installed with static iron core, and dynamic iron core is located on the right side of static iron core, in elevator When work, for magnetic apparatus after being persistently powered, magnetic base can form a magnetic field around magnetic apparatus, and move Iron core and static iron core can mutually generate magnetic force and be attracted, under the enhancing in magnetic field, be led to brake arm after lasting energization Draw, if brake main body can stop working after there is power-off, after re-starting energization, magnetic apparatus will not immediately carry out work Make, after a loss of power, magnetic field disappears for dynamic iron core and static iron core, needs to re-start generation magnetic force, so as to avoid elevator brake The problem of work causes elevator to break down is recovered immediately after energization.

2, the elevator brake that this kind cuts off self-lock is fixedly installed with coil block in the middle part of magnetic apparatus, magnetic apparatus Limit switches are fixedly mounted in front, and coil block is fixedly connected with limit switch, after the power-off of brake main body stops working, The magnetic field force that limit switch is subject to will do it releasing, so that coil block meeting automatic spring, coil block can be fixed on dynamic Between iron core and static iron core, after brake main body is re-energised, the resistance of coil block is larger, to hinder electric current Hinder, so that electric current can not pass through after brake main body is powered, so that work can not be recovered immediately, it is hidden to avoid elevator generation safety Suffer from, realize elevator brake power-off after be able to carry out it is self-locking.

3, the elevator brake that this kind cuts off self-lock, the two sides that electricity draws mechanism driving wheel are fixedly installed with brake arm, brake The inside of arm is fixedly installed with brake arm, and the upper surface of brake arm is through brake bar is connected with, and the inside of brake bar is through connection Have mandril, and mandril is fixedly connected with magnetic apparatus, brake main body power-off after, if elevator brake in the air, magnetic apparatus without Method generates magnetic force, will do it releasing to the limitation of mandril, brake bar can release braking, and brake arm draws the fixation of mechanism driving wheel to electricity Power can be reduced, so that elevator drawstring starts slow release, elevator slowly moves down under the action of drawstring, and traction machine The lower end surface of shell is fixedly installed with voussoir, and when elevator slides into floor slot, floor slot is correspondingly arranged with voussoir, on voussoir Washer can be with the big reversed frictional force such as floor slot generation, so that elevator is remain stationary, elevator can not after realizing power-off Automatically the problem of being braked.

4, the elevator brake that this kind cuts off self-lock, is fixedly connected with spacer on the right side of dynamic iron core, magnetic apparatus two sides it is interior Wall is closely fitted with friction plate, and after the power-off of brake main body is re-energised, the friction plate of static iron core two sides is in brake master After body re-starts energization, magnetic generate of static iron core can be interfered, and the magnetic force that the spacer in dynamic iron core is subject to after a loss of power It can disappear, dynamic iron core is socketed to can glide, so that brake main body is after powered up, can not be powered immediately extensive It returns to work work.

Detailed description of the invention

Fig. 1 is the overall structure figure of the utility model；

Fig. 2 is the brake main body cross-sectional view of the utility model；

Fig. 3 is the magnetic apparatus cross-sectional view of the utility model；

Fig. 4 is the brake main body circuit figure of the utility model.

In figure, 1, brake main body；2, traction machine shell；3, voussoir；301, washer；4, electricity draws mechanism driving wheel；401, it makes Dynamic watt；402, brake arm；4021, brake arm；403, brake bar；4031, mandril；4032, traction rope interconnecting piece；404, magnetic force bottom Seat；405, magnetic apparatus；4051, coil block；4052, dynamic iron core；4053, spacer；4054, static iron core；4055, friction plate； 406, limit switch；407, limit card slot；408, wrapping post.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of elevator brake to cut off self-lock, including Brake main body 1, traction machine shell 2, electricity draw mechanism driving wheel 4 and magnetic apparatus 405, and electricity draws the fixed peace in two sides of mechanism driving wheel 4 Equipped with brake arm 402, the lower end surface of magnetic apparatus 405 is fixedly installed with magnetic base 404, and the inside of magnetic apparatus 405 is fixedly mounted There is dynamic iron core 4052, the inside of magnetic apparatus 405 is fixedly installed with static iron core 4054, and it is right that dynamic iron core 4052 is located at static iron core 4054 Side, the middle part of magnetic apparatus 405 are fixedly installed with coil block 4051, and limit switches are fixedly mounted in the front of magnetic apparatus 405 406, coil block 4051 is fixedly connected with limit switch 406, and coil block 4051 is in " rectangle ", is powered off in brake main body 1 After when being re-energised, coil block 4051 will form a barrier resistance, and the inside of coil block 4051 be it is hollow, to make After must being re-energised, after magnetic field disappears, electric current can not mutually circulate, so that magnetic apparatus 405 can not generate magnetic force, it is right Brake main body 1 is resumed work.

Further, the right side of dynamic iron core 4052 is fixedly connected with spacer 4053, and the internal diameter of spacer 4053 is greater than dynamic iron core 4052 internal diameter, and the length of spacer 4053 is being made equal to the one third of entire 4052 length of dynamic iron core by spacer 4053 After dynamic device main body 1 powers off, the magnetic field force that spacer 4053 is subject to disappears, and can be socketed to dynamic iron core 4052, to block dynamic iron Core 4052 generates magnetic force.

Further, the inner wall of 405 two sides of magnetic apparatus is closely fitted with friction plate 4055, and friction plate 4055 is in symmetrically to set Set in magnetic apparatus 405, by friction plate 4055, after brake main body 1 re-starts energization, the surface of friction plate 4055 compared with For bumps, newly formed magnetic induction line direction can be had an impact, to generate interference to the magnetic of static iron core 4054.

Further, the lower end surface of traction machine shell 2 is fixedly mounted there are two voussoir 3, and two voussoirs 3 are symmetricly set on and drag Draw on casing body 2, the lower end surface of voussoir 3 is fixedly installed with washer 301, and the cross-sectional area of washer 301 is equal to the transversal of voussoir 3 Area, by voussoir 3, after the power-off of brake main body 1, when lift slide, voussoir 3 can be with the cunning in elevator shaft Slot generates friction, so that the gliding speed to elevator inhibits.

Further, the junction that traction machine shell 2 and electricity draw mechanism driving wheel 4 is fixedly installed with brake scotch 401, brake scotch 401, which draw 4 central axis of mechanism driving wheel with electricity, is in same level, by brake scotch 401, works in brake main body 1 When, brake scotch 401 can draw mechanism driving wheel 4 to electricity and be fixed, so that reducing electricity draws what the work of mechanism driving wheel 4 generated Vibration, enables the elevator to steadily be run.

Further, the inside of brake arm 402 is fixedly installed with brake arm 4021, and the upper surface of brake arm 4021 is through company It is connected to brake bar 403, the inside of brake bar 403, which is run through, is connected with mandril 4031, and mandril 4031 and the fixed company of magnetic apparatus 405 It connects, by brake arm 4021, after the power-off of brake main body 1, brake arm 4021 can draw mechanism driving wheel 4 with electricity and generate traction Power, to guarantee that brake main body 1 can carry out downslide braking automatically.

Further, the two sides of brake arm 4021 are fixedly installed with traction rope interconnecting piece 4032, two traction rope connections Portion 4032 is in " T-shaped ", by traction rope interconnecting piece 4032, is connected in the traction rope interconnecting piece 4032 of " T-shaped " to traction rope When connecing, inside concentric force can be generated always, and the protrusion of 4032 two sides of traction rope interconnecting piece can carry out power flat Weighing apparatus, to keep the steady stretching of entire traction rope interconnecting piece 4032.

Further, the middle part that electricity draws mechanism driving wheel 4 is fixedly installed with wrapping post 408, and it is dynamic that wrapping post 408 and electricity draw mechanism 4 concentric settings are taken turns, and the surrounding of wrapping post 408 is fixedly installed with limit card slot 407, by wrapping post 408, in elevator drawstring After being fixed by wrapping post 408, the inner wall of limit card slot 407 is divided into multistage, and every section of distance be equal to each floor it Between height can be slowed down and be stopped at corresponding floor so that elevator is in the process of running.

Working principle: firstly, after staff checks all parts, elevator is during being run, system Dynamic device main body 1 can carry out traction braking to elevator at the moment, and when normal power-up, electric current can be directly by multistage conducting wire by current transmission Onto magnetic apparatus 405, needed to carry out electric current direct current and shunting according to different units, the two sides that electricity draws mechanism driving wheel 4 are equal It is fixedly installed with brake arm 402, when normal power-up, magnetic apparatus 405 is electrified stream, and the iron core in magnetic apparatus 405 magnetizes rapidly suction It closes, will drive brake arm 402 makes its braking, and brake scotch 401 opens, draws mechanism driving wheel 4 with electricity and completely disengage, elevator is transported Row, if power off suddenly, the lower end surface of magnetic apparatus 405 is fixedly installed with magnetic base 404, and the inside of magnetic apparatus 405 is solid Dingan County is equipped with dynamic iron core 4052, and the inside of magnetic apparatus 405 is fixedly installed with static iron core 4054, and dynamic iron core 4052 is located at static iron core The magnetic force of 4054 right sides, static iron core 4054 and dynamic iron core 4052 disappears, and the magnetic field force that limit switch 406 is subject to will do it releasing, The meeting automatic spring of coil block 4051, coil block 4051 can be fixed between dynamic iron core 4052 and static iron core 4054, brake After device main body 1 re-starts energization, electric current is intercepted by coil block 4051, and electric current can not interact, to carry out to elevator It is self-locking.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of elevator brake to cut off self-lock, including brake main body (1), traction machine shell (2), electricity draw mechanism driving wheel (4) and magnetic apparatus (405), it is characterised in that: the two sides that the electricity draws mechanism driving wheel (4) are fixedly installed with brake arm (402), The lower end surface of the magnetic apparatus (405) is fixedly installed with magnetic base (404), and the inside of the magnetic apparatus (405) is fixedly mounted Have dynamic iron core (4052), the inside of the magnetic apparatus (405) is fixedly installed with static iron core (4054), dynamic iron core (4052) position On the right side of static iron core (4054), coil block (4051), the magnetic apparatus are fixedly installed in the middle part of the magnetic apparatus (405) (405) limit switches (406) are fixedly mounted in front, and the coil block (4051) is fixedly connected with limit switch (406).

2. a kind of elevator brake to cut off self-lock according to claim 1, it is characterised in that: the dynamic iron core (4052) Right side be fixedly connected with spacer (4053), the internal diameter of the spacer (4053) is greater than the internal diameter of dynamic iron core (4052), and spacer (4053) length is equal to the one third of entire dynamic iron core (4052) length.

3. a kind of elevator brake to cut off self-lock according to claim 1, it is characterised in that: the magnetic apparatus (405) The inner wall of two sides is closely fitted with friction plate (4055), and the friction plate (4055) is symmetrical set in magnetic apparatus (405).

4. a kind of elevator brake to cut off self-lock according to claim 1, it is characterised in that: the traction machine shell (2) lower end surface is fixedly mounted there are two voussoir (3), and two voussoirs (3) are symmetricly set on traction machine shell (2), institute The lower end surface for stating voussoir (3) is fixedly installed with washer (301), and the cross-sectional area of washer (301) is equal to the cross section of voussoir (3) Product.

5. a kind of elevator brake to cut off self-lock according to claim 1, it is characterised in that: the traction machine shell (2) junction for drawing mechanism driving wheel (4) with electricity is fixedly installed with brake scotch (401), and the brake scotch (401) and electricity draw mechanism and move Wheel (4) central axis is in same level.

6. a kind of elevator brake to cut off self-lock according to claim 1, it is characterised in that: the brake arm (402) Inside be fixedly installed with brake arm (4021), the upper surface of the brake arm (4021) is through being connected with brake bar (403), institute The inside for stating brake bar (403), which is run through, to be connected with mandril (4031), and mandril (4031) is fixedly connected with magnetic apparatus (405).

7. a kind of elevator brake to cut off self-lock according to claim 6, it is characterised in that: the brake arm (4021) Two sides be fixedly installed with traction rope interconnecting piece (4032), two traction rope interconnecting pieces (4032) are in " T-shaped ".

8. a kind of elevator brake to cut off self-lock according to claim 1, it is characterised in that: the electricity draws mechanism driving wheel (4) it being fixedly installed in the middle part of wrapping post (408), the wrapping post (408) and electricity draw mechanism driving wheel (4) concentric setting, and The surrounding of wrapping post (408) is fixedly installed with limit card slot (407).