CN204549711U - Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system - Google Patents
Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system Download PDFInfo
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- CN204549711U CN204549711U CN201520185380.0U CN201520185380U CN204549711U CN 204549711 U CN204549711 U CN 204549711U CN 201520185380 U CN201520185380 U CN 201520185380U CN 204549711 U CN204549711 U CN 204549711U
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Abstract
The utility model discloses a kind of ratchet automatically reset single brake press plate of energy two-way automatic anti-running car speed limiting system, on the base of its velocity limiter, coaxial rotation is equipped with rope sheave and ratchet, ratchet torsion spring is provided with between the ratchet that rope sheave side is rotated and rope sheave, rope sheave is also rotatably equipped with ratchet location structure, the top pressure side of ratchet location structure and pawl spring top force fit, ratchet is coaxially fixedly installed disc away from the wheel face of gravity drop hammer, the outer rim of disc is laid with the direction of tilt pushing tooth consistent with the direction of tilt of the ratchet gear teeth, ratchet is fixed with reset attachment, reset attachment has after ratchet locking ratchet, the reset inclined-plane of ratchet pawl reset is made with pushing tooth slip press-fit during ratchet reversion, coder is used for transmitting with elevator master control unit being connected, elevator master control unit is connected with magnet control.Ratchet of the present utility model and ratchet location structure do not need manual reset, can be used in machine-roomless lift.
Description
Technical field
The utility model relates to a kind of velocity limiter protection system for limiting elevator speed, and particularly relating to a kind of ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system.
Background technology
Velocity limiter is the critical component of elevator safety, of the prior art have a kind of such bidirectional speed limiter, so-called bidirectional speed limiter be exactly ascending for elevator and descending time the velocity limiter that can play a role, comprise base, base is equipped with rope sheave and ratchet by main axis, and the two ends of main shaft are arranged on base by bearing, and rope sheave spline is assemblied on main shaft, one end of main shaft is provided with coder, and rope sheave is arranged with steel rope.The diameter of ratchet is less than the diameter of rope sheave, the wheel face of rope sheave is rotatably equipped with ratchet, torsion spring is provided with between ratchet and rope sheave, torsion spring, to Pawl Torsion, makes ratchet rotate and has the trend of joining with the draw-in groove card of ratchet all the time, when ratchet is in free state, ratchet and ratchet can be in the state of clamping, the termination of ratchet is convexly equipped with a fixture block, the both sides of fixture block can two cell wall blocks of draw-in groove, prevent ratchet on cw and conter clockwise both direction relative to detent.Rope sheave also rotates and is provided with ratchet location structure, ratchet location structure has a top pressure side, this pressure side top, top is pressed on ratchet, ratchet is made to be in the normal condition decontroling ratchet, between ratchet location structure and rope sheave, there is torsion spring, torsion spring compresses the power of ratchet for ratchet location structure provides, ratchet is made to overcome torsion spring power on it, keep the state be separated with ratchet, rope sheave is also rotatably equipped with two gravity drop hammers, ratchet and ratchet location structure are in the side of rope sheave, and two gravity drop hammers are in the other side of rope sheave.The set-up mode of two gravity drop hammers on rope sheave is centrosymmetric mode, the run-on point of gravity drop hammer is not in two ends, one end quality more greatly tup end of gravity drop hammer, other end quality is less is hammer handle end, compression-spring device is provided with between the hammer handle end of a gravity drop hammer and rope sheave, compression-spring device makes the tup end of gravity drop hammer be in the centre of rope sheave, connecting rod is connected with between the tup portion and the hammer handle portion of another gravity drop hammer of this gravity drop hammer, the two ends of connecting rod are hinged with two gravity drop hammers respectively, when rope sheave normal rotation, under the effect of compression-spring device, the tup portion of two gravity drop hammers is all in the centre of rope sheave.When rope sheave overspeed operation, under the influence of centrifugal force, the spring force that two gravity drop hammers can overcome compression-spring device opens, and two tups all can turn to the edge of rope sheave, and two hammer handles turn to the center of rope sheave.Ratchet location structure has the trigger unit through rope sheave, when the tup of gravity drop hammer turns to the outer rim of rope sheave, gravity drop hammer is to the top of projection in the pressure trigger unit of top, the power making ratchet location structure overcome its torsion spring is rotated, ratchet location structure compresses ratchet, ratchet is made to continue to rotate to the direction away from ratchet, along with the increase of rotation distance, ratchet location structure can decontrol ratchet, ratchet is stuck with ratchet under the effect of its torsion spring, after ratchet location structure decontrols ratchet, ratchet will be crossed ratchet location structure and keep off ratchet location structure conversely, ratchet location structure can not be resetted, at this moment, ratchet location structure pushes up pressure ratchet under the effect of torsion spring power, ratchet failure-free is made to be in the state with ratchet buckle, in this state, it is made to rotate lasting rotation to the direction away from ratchet if move ratchet, ratchet will be separated with ratchet location structure, ratchet location structure is return under the effect of its torsion spring, at this moment ratchet is decontroled, ratchet location structure will be located with ratchet.When ratchet failure-free is in the state with ratchet buckle, rope sheave drives pawl wheel by ratchet.Side in rope sheave on base is provided with brake plate device, the slipper of brake plate device is provided with pull bar, one end of pull bar is located on slipper, the side that slipper is relative with rope sheave is medial surface, another side is lateral surface, has outside spring in the arranged outside of slipper, and the top, one end of outside spring is pressed on the lateral surface of slipper, the other end top of outside spring is pressed on the bulge loop on the termination of pull bar, and other one end of pull bar is hinged on the wheel face of ratchet.Between slipper and ratchet, be also provided with connecting plate, one end of connecting plate is hinged on the side of slipper, and the other end is hinged on the wheel face of ratchet, and ratchet, connecting plate and slipper form crank-rocker structure.When rope sheave rotates toward a direction, after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and is rotated, ratchet drives corresponding slipper to press to rope sheave when rotating by a pull bar, realize the braking of rope sheave, when rope sheave rotates toward another direction, after ratchet and ratchet are fastened togather, ratchet is followed rope sheave and is rotated, ratchet drives slipper to press to rope sheave when rotating by connecting plate, realize the braking of rope sheave, mutually interfere when moving to prevent pull bar and connecting plate, pull bar and the hinged one end of ratchet have elongated hole, corresponding hinge is through in elongated hole and realizes the hinged of pull bar and ratchet, equally, connecting plate and the hinged one end of ratchet have elongated hole, corresponding hinge is through in this elongated hole and realizes the hinged of connecting plate and ratchet.Like this, pull bar work pull slipper time, corresponding hinge can slide in the elongated hole of connecting plate, can not affect the action of ratchet, equally, connecting plate work pull slipper time, pull bar also can not interfere the action of ratchet.Base is also provided with electromagnet, pressure gravity drop hammer can be pushed up when electromagnet is energized, gravity drop hammer is opened, ratchet and pawl is allowed to be fastened togather, realize the forced brake of rope sheave, when elevator breaks down, need the braking manually realizing rope sheave, at this moment, the braking of rope sheave just can be realized to electromagnet energising.Certainly, when rope sheave rotates hypervelocity, gravity drop hammer also can open, ratchet and pawl is fastened togather, when service personnel overhauls, even if by ratchet anyway, when allowing ratchet and ratchet be in released state, ratchet still cannot return, need manual override's torsion spring power to rotate ratchet, make ratchet return and locate, in machine-roomless lift with ratchet location structure, workman cannot carry out the reset of ratchet, and causing this kind of velocity limiter cannot use in machine-roomless lift.In addition, in order to Reliable guarantee lift car can stop by failure-free when meeting accident, safety tongs can be assembled in elevator device, safety tongs of the prior art, general is all one-way safety pincers, reliably can stop when accident, needing installation two safety tongss to realize ascending for elevator and descending elevator car, the parts of system will be increased like this, make system just huge.
Utility model content
The purpose of this utility model is to provide a kind of ratchet automatically reset single brake press plate of energy two-way automatic anti-running car speed limiting system, to solve the problem that in prior art, velocity limiter cannot use in machine-roomless lift.
In order to realize above object, the utility model adopts following technical scheme: a kind of ratchet automatically reset single brake press plate of energy two-way automatic anti-running car speed limiting system, comprise velocity limiter and safety tongs, described velocity limiter comprises base, base is equipped with rope sheave and ratchet by main axis, the two ends of main shaft are arranged on base by bearing, rope sheave is assemblied on main shaft, main shaft is provided with coder, side in rope sheave on base is provided with brake plate device, also connecting plate is provided with between the slipper and ratchet of brake plate device, one end of connecting plate is hinged on the side of slipper, the other end is hinged on the wheel face of ratchet, ratchet, connecting plate and slipper form crank-rocker structure, the side of the wheel face of rope sheave is rotatably equipped with ratchet, the ratchet torsion spring that the draw-in groove card of ratchet turning ratchet wheel and ratchet is joined is provided with between ratchet and rope sheave, the wheel face of rope sheave is also rotatably equipped with ratchet location structure, location torsion spring is provided with between ratchet location structure and rope sheave, the top pressure side of ratchet location structure and pawl spring top force fit, the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, base is also provided with the electromagnet that top pressure gravity drop hammer after powered up makes gravity drop hammer open, the trigger unit of ratchet location structure is convexly equipped with when the tup of gravity drop hammer turns to the outer rim of rope sheave and the top of power hammer press-fit, described ratchet is coaxially fixedly installed disc away from the wheel face of gravity drop hammer, the outer rim of disc is laid with the direction of tilt pushing tooth consistent with the direction of tilt of the ratchet gear teeth, described ratchet is fixed with reset attachment, reset attachment has after ratchet locking ratchet, the reset inclined-plane of ratchet pawl reset is made with pushing tooth slip press-fit during ratchet reversion, described coder is used for transmitting with elevator master control unit being connected, elevator master control unit is connected with magnet control, described velocity limiter comprises square mounting frame, the end plate that mounting frame has relative side plate and connected together by biside plate, end plate is provided with pilot hole, in pilot hole, guiding is equipped with brake wheel gangbar, brake wheel gangbar is in the part between two side plates and is fixed with lift plate, lift plate is respectively arranged with the chute of bearing of trend perpendicular to biside plate in brake wheel gangbar both sides, brake wheel is respectively arranged with in chute, slide and be plugged in corresponding chute in wheel shaft one end of brake wheel, the medial surface of biside plate is fixed with driving voussoir respectively, leaf spring is provided with between two driving voussoirs and corresponding side plate, two faces driving voussoir relative are V-type face, the wheel face of two brake wheels rolls with corresponding V-type face respectively and coordinates, the medial surface of biside plate is also provided with positioning plate, two positioning plates offer V-type chute, the other end of the wheel shaft of two brake wheels to be plugged in corresponding V-type chute and with the cell wall bearing fit of corresponding V-type chute, described brake wheel gangbar is connected with velocity limiter.
Described reset contact is the U-shaped part with two sidewalls and a bottom bent by strip board, the corresponding end of fixed mount stretches between two sidewalls of reset contact, reset contact has been passed through two sidewalls rotations and has been assemblied on fixed mount, the opening of reset contact is towards ratchet core wheel direction, and described reset inclined-plane is arranged on reset contact on the sidewall of pushing tooth.
Described bidirectionally limited structure comprises two bottoms screwing in reset contact and stretches to the top pressure screw of fixed mount, and two top pressure screws are in the both sides of described rotating shaft respectively.
Described reset contact is away from the sidewall of pushing tooth and be provided with between fixed mount and make reset inclined-plane press to the extension spring pushing tooth.
Described fixed mount comprises the adapter plate for being fixed on ratchet, and the both sides of adapter plate are wholely set for rotating the ear of assembling with reset contact in the work end of ratchet.
Described adapter plate is wholely set the protuberance for fixing extension spring away from work end.
Described disc is sheet ring body, and on the inner hole wall of disc, radial direction is laid with fixing calvus, and fixing calvus is fixed by screws on disc.
Described pushing tooth is arranged on disc by the connecting strap be wholely set on disc, and described connecting strap is wholely set with pushing tooth.
Ratchet of the present invention has fixedly been sticked disc, pushing tooth on disc can push the reset attachment on ratchet when ratchet reverses, ratchet is rotated to the direction away from ratchet, ratchet is separated with ratchet location structure, ratchet is answered and ratchet location structure resets, return normal condition, ratchet is in the state decontroling ratchet, do not need manual reset ratchet, carry out overhauling at service personnel, reverse ratchet time, ratchet will automatically reset, and can be used in machine-roomless lift, can be used in machine-roomless lift; In addition, main shaft is provided with coder, when elevator is in halted state, rope sheave also can be in motionless state, once there is slipping car phenomenon, coder can detect the rotation of main shaft, can prevent elevator from slipping car with this.In addition, with the utility model with the use of safety tongs be bidirectional safety tongs, one end of the wheel shaft of two brake wheels of this safety tongs is slidably arranged in the chute of lift plate, the other end is slidably arranged in the V-type chute of driving voussoir, the opening of two V-type chutes is relative, when brake wheel gangbar drive lift plate moves or moves down, two brake wheels all can to moving together, grip track can realize the braking of lift car, the uplink and downlink braking that the utility model can realize lift car simultaneously does not need to arrange two cover systems.
Accompanying drawing explanation
Fig. 1 is the integral structure schematic diagram of the utility model embodiment;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the assembling schematic diagram of rope sheave in Fig. 1 and ratchet;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the right elevation of Fig. 3;
Fig. 6 is the assembly drowing of ratchet in Fig. 1 and disc;
Fig. 7 is the assembly drowing of ratchet in Fig. 1 and reset attachment;
Fig. 8 is the right elevation of Fig. 7.
Fig. 9 is the automatic anti-running car control chart of the elevator device that embodiment of the present utility model is applied;
Figure 10 is the integral structure schematic diagram (removing a positioning plate) of the bidirectional safety tongs in the utility model embodiment.
Detailed description of the invention
A kind of ratchet automatically reset single brake press plate of energy two-way automatic anti-running car speed limiting system, in Fig. 1 ~ 8, so-called bidirectional speed limiter be exactly ascending for elevator and descending time the velocity limiter that can play a role, its base 1 is equipped with rope sheave 2 and ratchet 3 by main axis, the two ends of main shaft are arranged on base 1 by bearing, rope sheave 2 spline is assemblied on main shaft, and one end of main shaft is provided with coder 14, rope sheave 2 is arranged with steel rope 13.The diameter of ratchet 3 is less than the diameter of rope sheave 2, the wheel face of rope sheave 2 is rotatably equipped with ratchet 4, torsion spring is provided with between ratchet 4 and rope sheave 2, torsion spring is to ratchet 4 torsion, ratchet 4 is rotated there is the trend of joining with the draw-in groove card of ratchet 3 all the time, when ratchet 4 is in free state, ratchet 4 and ratchet 3 can be in the state of clamping, rope sheave 2 also rotates and is provided with ratchet location structure 6, ratchet location structure 6 has a top pressure side, this pressure side top, top is pressed on ratchet 4, ratchet 4 is made to be in the normal condition decontroling ratchet 3, between ratchet location structure 6 and rope sheave 2, there is torsion spring, torsion spring compresses the power of ratchet 4 for ratchet location structure 6 provides, ratchet 4 is made to overcome torsion spring power on it, keep the state be separated with ratchet 3, rope sheave 2 is also rotatably equipped with two gravity drop hammers 5, ratchet 4 and ratchet location structure 6 are in the side of rope sheave 2, two gravity drop hammers 5 are in the other side of rope sheave 2.The set-up mode of two gravity drop hammers 5 on rope sheave 2 is centrosymmetric mode, the run-on point of gravity drop hammer 5 is not in two ends, one end quality more greatly tup end of gravity drop hammer 5, other end quality is less is hammer handle end, compression-spring device 11 is provided with between the hammer handle end of a gravity drop hammer 5 and rope sheave 2, compression-spring device 11 makes the tup end of gravity drop hammer 5 be in the centre of rope sheave 2, connecting rod 10 is connected with between the tup portion and the hammer handle portion of another gravity drop hammer 5 of this gravity drop hammer 5, the two ends of connecting rod 10 are hinged with two gravity drop hammers 5 respectively, when rope sheave 2 normal rotation, under the effect of compression-spring device 11, the tup portion of two gravity drop hammers 5 is all in the centre of rope sheave 2.When rope sheave 2 overspeed operation, under the influence of centrifugal force, the spring force that two gravity drop hammers 5 can overcome compression-spring device 11 opens, and two tups all can turn to the edge of rope sheave 2, and two hammer handles turn to the center of rope sheave 2.Ratchet location structure 6 has the trigger unit through rope sheave 2, when the tup of gravity drop hammer 5 turns to the outer rim of rope sheave 2, gravity drop hammer 5 is to the top of projection in the pressure trigger unit of top, the power making ratchet location structure 6 overcome its torsion spring is rotated, ratchet location structure 6 compresses ratchet 4, ratchet 4 is made to continue to rotate to the direction away from ratchet 3, along with the increase of rotation distance, ratchet location structure 6 can decontrol ratchet 4, ratchet 4 is stuck with ratchet 3 under the effect of its torsion spring, after ratchet location structure 6 decontrols ratchet 4, ratchet 4 will be crossed ratchet location structure 6 and keep off ratchet location structure 6 conversely, ratchet location structure 6 can not be resetted, at this moment, ratchet location structure 6 pushes up pressure ratchet 4 under the effect of torsion spring power, ratchet 4 failure-free is made to be in the state with ratchet 3 buckle.In this state, if the buckle between ratchet 4 and ratchet 3 will be contacted.Ratchet 4 and ratchet location structure 6 are replied and mutually pushes up pressure, when making ratchet 4 remain on the state be separated with ratchet 3, just can move ratchet 4 makes it rotate lasting rotation to the direction away from ratchet 3, ratchet 4 will be separated with ratchet location structure 6, ratchet location structure 6 is return under the effect of its torsion spring, at this moment decontrol ratchet 4, ratchet location structure 6 will be located with ratchet 4, and both are returned to initial condition.Base 1 is provided with brake plate device in the side of rope sheave 2, the slipper of brake plate device is provided with pull bar, one end of pull bar is located on slipper, the side that slipper is relative with rope sheave 2 is medial surface, another side is lateral surface, has outside spring in the arranged outside of slipper, and the top, one end of outside spring is pressed on the lateral surface of slipper, the other end top of outside spring is pressed on the bulge loop on the termination of pull bar, and other one end of pull bar is hinged on the wheel face of ratchet 3.Between slipper and ratchet 3, be also provided with connecting plate 12, one end of connecting plate 12 is hinged on the side of slipper, and the other end is hinged on the wheel face of ratchet 3, and ratchet 3, connecting plate 12 form crank-rocker structure with slipper.When rope sheave 2 rotates toward a direction, after ratchet 4 and ratchet 3 are fastened togather, ratchet 3 is followed rope sheave 2 and is rotated, ratchet 3 drives corresponding slipper to press to rope sheave 2 when rotating by a pull bar, realize the braking of rope sheave 2, when rope sheave 2 rotates toward another direction, after ratchet 4 and ratchet 3 are fastened togather, ratchet 3 is followed rope sheave 2 and is rotated, ratchet 3 drives slipper to press to rope sheave 2 when rotating by connecting plate 12, realize the braking of rope sheave 2, mutually interfere when moving to prevent pull bar and connecting plate 12, pull bar and the hinged one end of ratchet 3 have elongated hole, corresponding hinge is through in elongated hole and realizes the hinged of pull bar and ratchet 3, equally, connecting plate 12 one end hinged with ratchet 3 has elongated hole, corresponding hinge is through in this elongated hole and realizes the hinged of connecting plate 12 and ratchet 3.Like this, pull bar work pull slipper time, corresponding hinge can slide in the elongated hole of connecting plate 12, can not affect the action of ratchet 3, equally, connecting plate 12 work pull slipper time, pull bar also can not interfere the action of ratchet 3.
The wheel face of that side away from gravity drop hammer of ratchet 3 is fixedly installed disc 7, and disc 7 is sheet ring body, and on the inner hole wall of disc 7, radial direction is laid with fixing calvus, and fixing calvus is fixed by screws on disc.The outer rim of disc 7 is laid with connecting strap 8, connecting strap 8 and disc 7 are wholely set, and connecting strap and disc 7 coplanar, connecting strap 8 is inclined on disc, that is connecting strap 8 is not extend along the radial direction of disc, and the direction of tilt of connecting strap 8 is consistent with the direction of tilt of the ratchet gear teeth.The side of connecting strap 8 has pushing tooth 9, and pushing tooth 9 and connecting strap 8 are one, and pushing tooth 9 is mutually vertical with connecting strap 8, and pushing tooth 9 is also inclination and the direction of tilt of the direction of tilt and the ratchet gear teeth that push tooth 8 is also the same like this.Ratchet 4 is also fixed with reset attachment, reset attachment has a fixed mount, and fixed mount has an adapter plate 27, and adapter plate 27 is adjacent on the lateral surface of ratchet, so-called lateral surface refers to the face be near rope sheave outer rim, namely away from the face at rope sheave center.Adapter plate 27 is fixed by screws on ratchet, is respectively provided with the working end head end that an ear of ear 28, Liang Ge 28 is all in ratchet in the both sides of adapter plate.Reset attachment also has a reset contact 29, reset contact 29 is the U-shaped part with two sidewalls and a bottom bent by strip board, one end arranging ear of fixed mount is stretched between two sidewalls of reset contact 29, and rotating shaft is rotated through two sidewalls of reset contact and Liang Ge ear thus by reset contact simultaneously and is assemblied on fixed mount.Two top pressure screws are installed with in the bottom of reset contact, two top pressure screws stretch to adapter plate, two top pressure screws are in the both sides of rotating shaft respectively, like this when reset contact is rotated relative to fixed mount, two level pressure screws will encounter adapter plate, such reset contact just has a rotation space, and two top pressure screws can be that reset contact is spacing in the two directions.That sidepiece near pushing tooth of reset contact has the direction of tilt inclined-plane consistent with the direction of tilt of pushing tooth, this inclined-plane is reset inclined-plane 30, when ratchet reversion, disc and then rotates, pushing tooth will push reset inclined-plane and with reset inclined-plane bearing fit, reset contact is rotated with ratchet, makes ratchet decontrol ratchet and locate with ratchet location structure.
The corresponding end of fixed mount stretches between two sidewalls of reset contact, and reset contact has been passed through two sidewalls rotations and has been assemblied on fixed mount, and the opening of reset contact is towards ratchet core wheel direction, and described reset inclined-plane is arranged on reset contact on the sidewall of pushing tooth.Reset contact away from pushing tooth sidewall on and be provided with extension spring 31 between fixed mount, one end of extension spring 31 is fixed on the position of adapter plate away from ratchet work termination, and this position has been wholely set protuberance 32, and extension spring is fixed on this protuberance 32.The other end of fixing extension spring is fixed on the position being in the inner side of rotating shaft of the sidewall of reset contact, and so-called inner side refers to the side near ratchet center, and reset inclined-plane can be made like this to press to pushing tooth.Reset contact is away from the sidewall of pushing tooth that sidewall not arranging reset inclined-plane.
Reset contact in the present embodiment rotates to be assemblied on fixed mount, Double-directional rotary position limiting structure is two screws, adjust the degree of depth that these two screws screw in bottom spacing contact and just can adjust the angle of reset contact relative to fixed mount, thus the angle on adjustment reset inclined-plane, the angle of rotating to make ratchet guarantees that enough greatly ratchet and ratchet location structure reset, certainly, also can directly reset contact be fixed on ratchet in other are implemented, ratchet so also can be made to reverse and reset.
Base 1 is also provided with electromagnet, and after powered up, electromagnet can push up pressure gravity drop hammer, and two gravity drop hammers are opened, and namely makes the heavier tup of gravity drop hammer turn to the outer rim of rope sheave, realizes the forced brake of rope sheave.Fig. 9 is the automatic anti-running car control chart of the elevator device that the present embodiment is applied, and when elevator parking, the traction caused owing to overloading is not enough, overload the braking force deficiency caused, the steel rope abrasion that elevator maintenance causes not in time or greasy dirt, cause towing machine not enough, or the brake facing wearing and tearing that elevator maintenance causes not in time are excessive, cause braking force deficiency etc. a variety of causes, there will be and slip the phenomenon of car, the car that slips is all when appearing at elevator parking, be arranged on the coder participant of one end of main shaft this time to elevator master control unit signal transmission, namely, meet once main axis and slip spoke part, coder just has and slips the Signal transmissions of car to elevator master control unit, elevator master control unit is connected with magnet control, what receive that coder transmits at elevator master control unit slips after car signal, electromagnet energising will be controlled, realize the forced brake of rope sheave, automatically the appearance of anti-running phenomenon is realized.
Bidirectional safety tongs in the present embodiment as shown in Figure 10, its mounting frame is square, both sides have two side plates 17, connect a side plate 17 to be arranged in parallel, end plate 16 is fixedly installed in one end of two side plates 17, two side plates are connected to together by end plate 16, end plate 16 is provided with pilot hole, in pilot hole, guiding is equipped with brake wheel gangbar 15, brake wheel gangbar 15 is connected with velocity limiter, brake wheel gangbar 15 is in the part between two side plates 17 and is fixed with lift plate 21, lift plate 21 is provided with two chutes 22, two chutes 22 are in the both sides of roller gangbar 15 respectively, and, the bearing of trend of two chutes 22 is all perpendicular to two side plates 17.The madial wall of biside plate is fixedly installed respectively drive between voussoir 19, two driving voussoir 19 and corresponding side plate 17 and is provided with leaf spring 18.Driving the side of voussoir 19 relative with lift plate 21, in driving the opposite side of voussoir 19 to be respectively arranged with positioning plate 24 on the medial surface of biside plate, positioning plate 24 offering V-type chute 23.The face 25 that braking two drives voussoir relative is V-type face.Two brake wheels 20 are provided with between lift plate 21 and positioning plate 24, the two ends of the wheel shaft of brake wheel 20 are plugged in the V-type chute 23 of corresponding chute 22 and correspondence respectively, and can slide in chute 22 with V-type chute 23, the wheel face of brake wheel 20 rolls with the V-type face of driving voussoir 19 and coordinates.
Drive top, one end of voussoir 19 to be pressed on end plate 16, be fixed with supporting plate 26 at the other end of biside plate 17, drive on the supporting plate 26 of other end top pressure of voussoir 19.
When elevator runs toward a direction, velocity limiter action can drive brake wheel gangbar 15 to move toward a direction, bidirectional safety tongs is by gripping elevator track, car is stopped, when elevator runs toward another direction, velocity limiter action can drive brake wheel gangbar 15 to move toward another direction, bidirectional safety tongs is also by gripping elevator track, car is stopped, and the brake wheel gangbar 15 of bidirectional safety tongs here and the connection mode of velocity limiter and one-way safety of the prior art clamp with the connection mode of velocity limiter the same.
Leaf spring in the present embodiment is manganese two silicon leaf spring.
Supporting plate 26 in the present embodiment is one piece of other one end being arranged on biside plate, can be also two pieces, be arranged on the medial surface of side plate.
Claims (9)
1. the ratchet automatically reset single brake press plate of an energy two-way automatic anti-running car speed limiting system, comprise velocity limiter and safety tongs, described velocity limiter comprises base, base is equipped with rope sheave and ratchet by main axis, the two ends of main shaft are arranged on base by bearing, rope sheave is assemblied on main shaft, main shaft is provided with coder, side in rope sheave on base is provided with brake plate device, also connecting plate is provided with between the slipper and ratchet of brake plate device, one end of connecting plate is hinged on the side of slipper, the other end is hinged on the wheel face of ratchet, ratchet, connecting plate and slipper form crank-rocker structure, the side of the wheel face of rope sheave is rotatably equipped with ratchet, the ratchet torsion spring that the draw-in groove card of ratchet turning ratchet wheel and ratchet is joined is provided with between ratchet and rope sheave, the wheel face of rope sheave is also rotatably equipped with ratchet location structure, location torsion spring is provided with between ratchet location structure and rope sheave, the top pressure side of ratchet location structure and pawl spring top force fit, the opposite side of rope sheave wheel face is also rotatably equipped with two gravity drop hammers, base is also provided with the electromagnet that top pressure gravity drop hammer after powered up makes gravity drop hammer open, the trigger unit of ratchet location structure is convexly equipped with when the tup of gravity drop hammer turns to the outer rim of rope sheave and the top of power hammer press-fit, it is characterized in that: described ratchet is coaxially fixedly installed disc away from the wheel face of gravity drop hammer, the outer rim of disc is laid with the direction of tilt pushing tooth consistent with the direction of tilt of the ratchet gear teeth, described ratchet is fixed with reset attachment, reset attachment has after ratchet locking ratchet, the reset inclined-plane of ratchet pawl reset is made with pushing tooth slip press-fit during ratchet reversion, described coder is used for transmitting with elevator master control unit being connected, elevator master control unit is connected with magnet control, described velocity limiter comprises square mounting frame, the end plate that mounting frame has relative side plate and connected together by biside plate, end plate is provided with pilot hole, in pilot hole, guiding is equipped with brake wheel gangbar, brake wheel gangbar is in the part between two side plates and is fixed with lift plate, lift plate is respectively arranged with the chute of bearing of trend perpendicular to biside plate in brake wheel gangbar both sides, brake wheel is respectively arranged with in chute, slide and be plugged in corresponding chute in wheel shaft one end of brake wheel, the medial surface of biside plate is fixed with driving voussoir respectively, leaf spring is provided with between two driving voussoirs and corresponding side plate, two faces driving voussoir relative are V-type face, the wheel face of two brake wheels rolls with corresponding V-type face respectively and coordinates, the medial surface of biside plate is also provided with positioning plate, two positioning plates offer V-type chute, the other end of the wheel shaft of two brake wheels to be plugged in corresponding V-type chute and with the cell wall bearing fit of corresponding V-type chute, described brake wheel gangbar is connected with velocity limiter.
2. the ratchet automatically reset single brake press plate of energy according to claim 1 two-way automatic anti-running car speed limiting system, it is characterized in that: described reset attachment comprises fixed mount, fixed mount is fixed on the lateral surface of ratchet, fixed mount is equipped with the reset contact of stretching to pushing tooth near one end of ratchet work termination by rotating shaft, be provided with Double-directional rotary position limiting structure between described reset contact and fixed mount, described reset inclined-plane is arranged in described reset contact.
3. the ratchet automatically reset single brake press plate of energy according to claim 2 two-way automatic anti-running car speed limiting system, it is characterized in that: described reset contact is the U-shaped part with two sidewalls and a bottom bent by strip board, the corresponding end of fixed mount stretches between two sidewalls of reset contact, reset contact has been passed through two sidewalls rotations and has been assemblied on fixed mount, the opening of reset contact is towards ratchet core wheel direction, and described reset inclined-plane is arranged on reset contact on the sidewall of pushing tooth.
4. the ratchet automatically reset single brake press plate of energy according to claim 3 two-way automatic anti-running car speed limiting system, it is characterized in that: described bidirectionally limited structure comprises two bottoms screwing in reset contact and stretches to the top pressure screw of fixed mount, and two top pressure screws are in the both sides of described rotating shaft respectively.
5. ratchet according to claim 4 can automatically reset single brake press plate two-way automatic anti-running car speed limiting system, it is characterized in that: described reset contact is away from the sidewall of pushing tooth and be provided with between fixed mount and make reset inclined-plane press to the extension spring pushing tooth.
6. the ratchet automatically reset single brake press plate of energy according to claim 5 two-way automatic anti-running car speed limiting system, it is characterized in that: described fixed mount comprises the adapter plate for being fixed on ratchet, the both sides of adapter plate are wholely set for rotating the ear of assembling with reset contact in the work end of ratchet.
7. the ratchet automatically reset single brake press plate of energy according to claim 6 two-way automatic anti-running car speed limiting system, is characterized in that: described adapter plate is wholely set the protuberance for fixing extension spring away from work end.
8. the ratchet automatically reset single brake press plate of energy as claimed in any of claims 1 to 7 two-way automatic anti-running car speed limiting system device, it is characterized in that: described disc is sheet ring body, on the inner hole wall of disc, radial direction is laid with fixing calvus, and fixing calvus is fixed by screws on disc.
9. the ratchet automatically reset single brake press plate of energy according to claim 8 two-way automatic anti-running car speed limiting system, it is characterized in that: described pushing tooth is arranged on disc by the connecting strap be wholely set on disc, described connecting strap is wholely set with pushing tooth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520185380.0U CN204549711U (en) | 2015-03-31 | 2015-03-31 | Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520185380.0U CN204549711U (en) | 2015-03-31 | 2015-03-31 | Ratchet can automatically reset single brake press plate two-way automatic anti-running car speed limiting system |
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| CN204549711U true CN204549711U (en) | 2015-08-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422979A (en) * | 2018-03-13 | 2018-08-21 | 力帆实业(集团)股份有限公司 | Automotive wheel one-directionally rotates control mechanism |
| CN110844737A (en) * | 2019-11-22 | 2020-02-28 | 宿州学院 | Elevator speed limiter |
| CN114314240A (en) * | 2022-01-10 | 2022-04-12 | 镇江朝阳机电科技有限公司 | Elevator speed regulator |
| CN115009953A (en) * | 2022-06-20 | 2022-09-06 | 日立电梯（中国）有限公司 | Bidirectional braking speed limiter |
-
2015
- 2015-03-31 CN CN201520185380.0U patent/CN204549711U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422979A (en) * | 2018-03-13 | 2018-08-21 | 力帆实业(集团)股份有限公司 | Automotive wheel one-directionally rotates control mechanism |
| CN108422979B (en) * | 2018-03-13 | 2023-06-13 | 力帆实业(集团)股份有限公司 | Unidirectional rotation control mechanism for automobile wheels |
| CN110844737A (en) * | 2019-11-22 | 2020-02-28 | 宿州学院 | Elevator speed limiter |
| CN110844737B (en) * | 2019-11-22 | 2024-04-26 | 宿州学院 | Elevator speed limiter |
| CN114314240A (en) * | 2022-01-10 | 2022-04-12 | 镇江朝阳机电科技有限公司 | Elevator speed regulator |
| CN115009953A (en) * | 2022-06-20 | 2022-09-06 | 日立电梯（中国）有限公司 | Bidirectional braking speed limiter |
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Granted publication date: 20150812 Termination date: 20170331 |