CN207209660U - Limiter of speed - Google Patents
Limiter of speed Download PDFInfo
- Publication number
- CN207209660U CN207209660U CN201720540442.4U CN201720540442U CN207209660U CN 207209660 U CN207209660 U CN 207209660U CN 201720540442 U CN201720540442 U CN 201720540442U CN 207209660 U CN207209660 U CN 207209660U
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- rope sheave
- shaft
- voussoir
- limiter
- sheave
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- 125000006850 spacer group Chemical group 0.000 description 16
- 238000012544 monitoring process Methods 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 5
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- 238000012360 testing method Methods 0.000 description 4
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- 238000003199 nucleic acid amplification method Methods 0.000 description 3
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Abstract
The utility model discloses a kind of limiter of speed, including rope sheave, sheave shaft, and rope sheave is pivotally assemblied in sheave shaft, and limiter of speed also includes voussoir and stop mechanism, and described voussoir is pivotally matched with sheave shaft and the side in the wheel face of rope sheave first；The first round face of the rope sheave is symmetrically installed with a pair of pouring weights that can be rotated, and two pouring weights, which are rotatably assorted, is connected to two symmetric points of described voussoir；First wheel face of the rope sheave forms the first wedge surface, and the voussoir forms the second wedge surface, and first wedge surface and the second wedge surface are two helicoids being adapted；Under rope sheave overspeed condition, two pouring weights produce centrifugal motion, the first wedge surface, the second wedge surface is produced relative rotation, so as to dynamic voussoir rotation and transverse shifting, be produced by stop mechanism and the stop of voussoir is acted on, rope sheave is synchronously stopped.This limiter of speed use range is wide, can be applicable express elevator and slower elevators, largely reduce production management cost.
Description
Technical field
A kind of trigger device field of testing the speed that the utility model belongs in mechanical ＆ electrical technology, and in particular to speed limit of elevator
Device.
Background technology
Elevator governor, it is one of safety con-trol part in elevator safety protection system.The function master of elevator governor
If monitoring the speed of car, when elevator exceeds the speed limit, on-off model can be sent in time, power supply circuit is cut off, makes traction
Mechanism is moved.If elevator still can not be braked, speed continues to increase, then limiter of speed can drive the safety tongs installed in cage bottom
Car is forced stop by action, so as to avoid that casualties and device damage accident occurs.
The limiter of speed in elevator is all the limiter of speed using centrifugal principle mostly at present, mainly by speed limit device wheel, from
Center device, steel wire rope and rope grip mechanism etc. form.Two centrifugal block for clutch use are housed on the wheel disc of speed limit device wheel, drawn with spring
To limiter of speed wheel direction of principal axis.When steel wire rope drives the rotation of limiter of speed wheel under car driving, due to the effect of centrifugal force, two
Centrifugal block for clutch use just will overcome the pulling force of spring and swing out, and speed is higher, and its pivot angle is bigger.
But above-mentioned centrifugal limiter of speed, has the following disadvantages：
1st, the mechanical action speed of low speed limiter of speed is fast and unstable；
2nd, electrically triggering speed V1 and machinery triggering speed V2 need to separate and debugged repeatedly；
3rd, speed V is electrically triggered1Discreteness is big, opens when closing and a dozen allow the problem of be present, exists repeatedly to open and closes；
5th, when falling occurs for car, fall velocity triggers speed and lagged relative to car actual speed, causes to pacify
It is complete to clamp down on energy increase；
6th, complicated in mechanical structure, it is consistent poor to repeat, and is not easy to annual test；
7th, there are computer room, machine room, high speed, low speed limiter of speed product line more, be not easy to production management, increase management cost
And cost of parts；
8th, automatically reset in the limiter of speed in machine-roomless lift complicated with set mechanism；
9th, traditional limiter of speed verifying work amount is big, cumbersome；Occur damaging inside the elevator governor or during failure, must
The use of elevator must be stopped, being repaired online, influenceed to use, inconvenient maintenance, potential safety hazard be present.
Utility model content
The purpose of this utility model is unstable in order to solve traditional limiter of speed, is debugged repeatedly, and complicated in mechanical structure etc. is asked
A kind of topic, there is provided accurate, elevator speed limit that having stable behavior is reliable, use and maintenance is easy to operate, cost is low, safe that tests the speed
Device.
In order to reach above-mentioned purpose of utility model, the utility model uses following technical scheme：
Limiter of speed, including rope sheave, sheave shaft, rope sheave are pivotally assemblied in sheave shaft, it is characterised in that also including voussoir
With stop mechanism, described voussoir is pivotally matched with sheave shaft and the side in the wheel face of rope sheave first；The rope sheave
The first round, face was symmetrically installed with a pair of pouring weights that can be rotated, and two pouring weights, which are rotatably assorted, is connected to two symmetric points of described voussoir；
First wheel face of the rope sheave forms the first wedge surface, and the voussoir forms the second wedge surface, and first wedge surface is with the second wedge surface
Two helicoids being adapted；Under rope sheave overspeed condition, two pouring weights produce centrifugal motion, the first wedge surface, the second wedge surface is produced phase
To rotating, so as to dynamic voussoir rotation and transverse shifting, be produced by stop mechanism and the stop of voussoir is acted on, make rope sheave synchronous
Stop.
Further, in addition to electric braking mechanism；Under rope sheave overspeed condition, the described triggering electric braking machine of pouring weight triggering
Structure acts.Action refers to that electric braking mechanism cuts off all electric switches.
Further, the stop mechanism includes braking brake pad, and the braking brake pad is provided with braking limit shaft；Rope sheave
Under overspeed condition, the voussoir laterally moves to fitting braking brake pad and drives braking brake pad to rotate, spacing by braking
Axle makes braking brake pad stop operating, and then stop voussoir.
Further, the electric braking mechanism includes dead-front switchboard, brake safe switch and a pair of symmetrically arranged peaces
Full switch is re-packed, and the pair of safety switch, which re-packs, to be respectively arranged on the pair of pouring weight；Under rope sheave overspeed condition, safety switch
Dead-front switchboard can be touched by re-packing, dead-front switchboard and then triggering brake safe switch.
Further, spacing hole is provided with the dead-front switchboard, the braking limit shaft passes through the spacing hole.
Further, the safety switch re-packs extend into U-shaped or S-shaped for U-shaped or S-shaped, the end of dead-front switchboard
Breach in.
Further, the end face that sheave shaft is installed on centrally through dead-front switchboard spring shaft of the dead-front switchboard,
Safety switch flat spring is also arranged with the dead-front switchboard spring shaft, the safety switch flat spring is located at the safety open
Close between plate and the end of dead-front switchboard spring shaft.
Further, in addition to centrifugally regulated part, centrifugation rotating shaft and pad, the centrifugation rotating shaft are arranged on the rope sheave hole of rope sheave
On, described pad, pouring weight are installed in the both ends of the centrifugation rotating shaft respectively；Centrifugation described in the second wheel face installation of the rope sheave
Regulating part；Under pouring weight apocarpy, centrifugation axis of rotation is driven；Pouring weight under centrifugal motion state, and then make pad rotate and
Friction occurs with centrifugally regulated part and produces a frictional force.
When rope sheave rotating speed is expected in adjustable range in centrifugally regulated part, pouring weight will not outwards be thrown away, i.e., will not rope-winding wheel
Hole is turned out, because the structure of centrifugally regulated part and space and the arrangement of the pad in centrifugation rotating shaft effectively avoid low speed
Covibration；When rope sheave rotating speed, which exceedes centrifugally regulated part, is expected adjustable range, centrifugal motion occurs for pouring weight.Centrifugally regulated part
And/or pad can be fabricated using flexible flexible material.
Further, in addition to the riser for braking spacing shaft mounting hole is provided with, the sheave shaft is arranged on riser, the system
Dynamic limit shaft, which passes through, brakes spacing shaft mounting hole.
Further, in addition to the Limit Bearing, the rope sheave spacer that are set on sheave shaft, the voussoir are set in rope sheave spacer
On, the rope sheave is set on Limit Bearing, and the rope sheave spacer is located between braking brake pad, Limit Bearing.
Further, the braking, which rubs, is equipped with torsion spring between sassafras block and riser.
Further, in addition to briquetting plate and briquetting, the briquetting plate are connected with the briquetting, and the briquetting plate turns with riser
Dynamic connection, the briquetting face rope sheave groove installation.Under rope sheave overspeed condition, braking limit shaft gets to briquetting plate, and briquetting plate occurs
Rotate, and then drive briquetting to press to rope sheave groove.
Compared with prior art, beneficial effect is the utility model：
1 compared with existing limiter of speed, and this limiter of speed use range is wide, while can be applicable express elevator and slower elevators,
It is to be additionally arranged briquetting plate and briquetting in the difference being applicable of express elevator and slower elevators, largely reduces production
Management cost；
It is very that 2. compared with prior art, limiter of speed of the present utility model removes steel wire rope in annual test from rope sheave
Easily, limiter of speed access steel wire rope of the prior art is cumbersome；
3. a limiter of speed realizes the transferring drive of power by multiple simple modular constructions, realize the movement of part or turn
Dynamic, mainly using principles such as inclined-plane self-locking, centrifugal force amplification and connecting rod amplifications, safety must be destroyed by producing brake force and accurate and effective
Switch；
4. being rubbed using voussoir with braking after sassafras block contacts produces the first brake force；Using setting up on the basis of the first brake force
Briquetting plate and briquetting, produce the second brake force.
Brief description of the drawings
Fig. 1 is the structural representation of an angle of limiter of speed；
Fig. 2 is the structural representation of another angle of limiter of speed；
Fig. 3 is the sectional view of limiter of speed；
Fig. 4 is the structural representation that limiter of speed is used on express elevator；
Fig. 5 is the local fractionation structural representation of limiter of speed.
In figure：Riser 1, the sassafras block 2 that rubs axially is braked, brake safe switch 3, dead-front switchboard 4, brakes limit shaft 5, safety
Switch flat spring 6, dead-front switchboard spring shaft 7, rope sheave pad 8, safety switch backing plate 9, upper super monitoring safety switch 10, voussoir
11, the second wedge surface 111, connecting rod 12, centrifuge rotating shaft pad 13, centrifugally regulated part 14, rope sheave 15, rope sheave groove 151, the first wheel face
15a, the second wheel face 15b, the first wedge surface 152, pouring weight 16, safety switch re-pack 17, centrifuge rotating shaft 18, pad 19, pitman shaft 20,
Limit Bearing 21, rope sheave spacer 22, torsion spring 23, sheave shaft 24, step 241, brake spacing shaft mounting hole 25, spacing hole 27, rope
Wheel bore 26, briquetting plate 51, briquetting 52.
Embodiment
Explanation is further described to the technical solution of the utility model below by specific embodiment.
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 5, limiter of speed, including rope sheave 15 and the sheave shaft 24 for being arranged with the rope sheave 15,
Also include pouring weight 16, voussoir 11, stop mechanism and electric braking mechanism, described voussoir 11 is pivotally matched with sheave shaft 24
And the side in the wheel face of rope sheave 15 first；First wheel face 15a of the rope sheave 15 is symmetrically installed with a pair of pouring weights that can be rotated
16, two pouring weights 16, which are rotatably assorted, is connected to two symmetric points of described voussoir 11；First wheel face 15a of the rope sheave 15 forms the
One wedge surface 152, the voussoir 11 form the second wedge surface 111, and first wedge surface 152 is to be bonded and mutually fit with the second wedge surface 111
Two helicoids matched somebody with somebody；When the centrifugal motion that under the overspeed condition of rope sheave 15, two pouring weights 16 rotate relative to rope sheave 15, triggering electricity
The first wedge surface 152 of gas arrestment mechanism and triggering, the second wedge surface 111 relatively rotate, and are produced and rubbed by the self-locking of two wedge surfaces
Wipe power so that axial distance elimination between the sassafras block 2 that rubs is braked in voussoir 11 and axial direction, and band dynamic voussoir 11 is rotated and moved axially
The generation of stop mechanism is triggered afterwards to act on the stop of voussoir 11, rope sheave is synchronously stopped.The purpose of electric braking mechanism is turned off
Whole electrical system and electric switch.Under normality, the first wedge surface 152, the second wedge surface 111 are bonded, two wedge surface hairs in hypervelocity
Now relatively rotate, produce self-locking frictional force.
Electric braking mechanism re-packs 17, dead-front switchboard 4 including symmetrically arranged a pair of safety switches and brake safe is opened
3 are closed, the pair of safety switch, which re-packs, 17 to be separately positioned on two pouring weights 16.Under the overspeed condition of rope sheave 15, safety switch is beaten
Plate 17 can touch dead-front switchboard 4, dead-front switchboard 4 and then triggering brake safe switch 3.
Stop mechanism includes braking brake pad 2, and the braking brake pad is provided with braking limit shaft 5；The hypervelocity shape of rope sheave 15
Under state, the voussoir 11 laterally moves to fitting braking brake pad 2 and drives braking brake pad 2 to rotate, by braking limit shaft 5
(position-limiting action of the spacing hole in such as figure on riser) is limited, braking brake pad 2 is stopped operating, and then stop voussoir 11,
Stop rope sheave.The purpose of stop mechanism is stop voussoir and rope sheave.
Spacing hole 27 is provided with dead-front switchboard 4, the braking limit shaft 5 passes through the spacing hole 27.
This limiter of speed, in addition to centrifugally regulated part 14, centrifugation rotating shaft 18 and pad 19, upper super monitoring safety switch 10.Its
In, the brake safe switch 3 is symmetrically set in the upper and lower both sides of dead-front switchboard 4, the rope with upper super monitoring safety switch 10
Wheel 15, voussoir 11, braking brake pad 2, dead-front switchboard 4 are successively set on sheave shaft 24；Rope sheave is provided with the rope sheave 15
Hole 26, centrifugation rotating shaft 18 pass through rope sheave hole 26, and the pad 19 is arranged on centrifugation rotating shaft 18 and is located at the wheel face 15b mono- of rope sheave 15 second
Side, the pouring weight 16, safety switch re-pack 17 be set in centrifugation rotating shaft 18 be located at the wheel face 15a sides of rope sheave 15 first；Centrifugation is adjusted
Section part 14 is arranged on the second wheel face 15b of rope sheave 15, and the centrifugal motion of pouring weight 16 drives centrifugation rotating shaft 18 to rotate, so as to drive
Pad 19 rotates produces a frictional force with centrifugally regulated part 14.Under normality, pad 19 contacts with centrifugally regulated part 14, that is,
The precompression of a contact between the two be present, pad 19 rotates during hypervelocity, between pad 19 and centrifugally regulated part 14
Contact rubs on the basis of precompression, that is, adds the frictional force that a pad rotational band is come.Pad 19 and/or
Centrifugally regulated part 14 can use the flexible materials such as rubber, reach contact and precompression be present, rotate and produce new frictional force
Purpose.
17 sides are re-packed provided with braking limit shaft 5, the dead-front switchboard 4 in the close safety switch of braking brake pad 2
Spacing hole 27 is provided with, the end of braking limit shaft 5 passes through the spacing hole 27；When rope sheave 15 does not exceed the speed limit, the safety safety
Switch re-pack 17 and then rope sheave 15 and the synchronous axial system of pouring weight 16；When rope sheave 15 exceeds the speed limit, brake safe switch 3 detects hypervelocity letter
Number, pouring weight 16 occurs centrifugation relative to rope sheave 15 and rotated, and drives safe safety switch to re-pack and 17 rotates, safe safety switch
The 17 drive dead-front switchboards 4 that re-pack, which rotate, destroys brake safe switch 3.
Can also increase in this programme surpasses monitoring safety switch 10 in setting, with dead-front switchboard 4 for symmetrical boundary, on
Super monitoring safety switch 10 is symmetrical arranged riser 1 with brake safe switch 3.Brake safe switch 3, exceed the speed limit all trigger up and down, on
Super monitoring safety switch 10 is only in upper time-out triggering；Upper super monitoring safety switch 10 employ the triggering of this structure be it is continuous, no
There can be the risk do not fallen once.
It 17 is U-shaped or S-shaped that safety switch, which re-packs, and the end 4a of dead-front switchboard 4 extend into U-shaped or the breach 17a of S-shaped
It is interior.
Pad 19 is polyhedron, and pad produces when being rotated under the centrifugal motion of pouring weight drives with centrifugally regulated part 14
A raw frictional force.When pad 19 is rotated by centrifugal action, polyhedron is in contact with centrifugally regulated part 14, and rope sheave rotating speed exists
When centrifugally regulated part is expected in adjustable range, pouring weight will not outwards be thrown away, and the arrangement of centrifugally regulated part and pad is effectively avoided
Low speed covibration.Pad 19 and/or centrifugally regulated part 14 are using the material with certain elasticity.
Being arranged on centrally through dead-front switchboard spring shaft 7 on the end face 24a of sheave shaft 24 for dead-front switchboard 4, it is described
Safety switch flat spring 6 is arranged with dead-front switchboard spring shaft 7, the safety switch flat spring 6 is located at the safety switch
Between the end of plate 4 and dead-front switchboard spring shaft 7.
Pouring weight is provided with the side that safety switch re-packs and is connected with the one end of connecting rod 12, the other end of connecting rod 12 and voussoir
Connection.Connecting rod realizes connection with connecting through pitman shaft 20 with voussoir.
Limiter of speed also includes being provided with riser 1, the Limit Bearing being set on sheave shaft 24 for braking spacing shaft mounting hole 25
21st, rope sheave spacer 22, the riser 1 are located between dead-front switchboard 4 and braking brake pad 2, and the braking limit shaft 5 is worn successively
Cross and brake spacing shaft mounting hole 25, spacing hole 27, the rope sheave 15 is set on Limit Bearing 21, and the rope sheave spacer 22 is located at
Between braking brake pad 2, Limit Bearing 21, the side of the rope sheave spacer 22 and braking rub the assembling of the axial gap of sassafras block 2, described
The opposite side of rope sheave spacer 22 is the inner ring of Limit Bearing 21.Spacing hole 27 is longitudinally disposed slotted hole.During hypervelocity, braking limit
Position axle 5 is spacing by the spacing hole 27 on riser so that braking brake pad 2 stops operating, and then stop voussoir 11.
Rubbed in braking and torsion spring 23 is housed between sassafras block 2 and riser 1.
Sheave shaft 24 is step-like structure, is divided into the different two-part of diameter, positioned at the straight of rope sheave side first paragraph
Footpath D1 is more than the diameter D2 positioned at 2 one sections of braking brake pad, one section of side being relatively large in diameter and the less section surface of diameter
A step 241 is formed, the side of rope sheave spacer 22 is leaned against on step 241, and the one end of rope sheave spacer 22 leans against this of sheave shaft 24
On individual step 241, one end is leaned against on the inner ring of bearing 21.
Safety switch backing plate 9 is provided between brake safe switch 3 or upper super monitoring safety switch 10 and riser 1.
Brake spacing shaft mounting hole 25 and use circular hole, it is optimal that spacing hole, which is arranged to longitudinally disposed slotted hole,.
In the present embodiment, it 17 is that the moment is consistent with the motion state of pouring weight 16 that safety switch, which re-packs, when rope sheave 15 exceed from
The adjusting force of heart regulating part 14, pouring weight 16 will be thrown away outward, that is, produce a rotation around centrifugation rotating shaft 18, now safety switch
Re-pack 17 also can and then rotate；It will be contacted when the angle that safety switch rotates reaches a timing with dead-front switchboard 4, due to sky
Between angle arrangement once both encounter and rope sheave 15 is also rotating, and both will rotate together, so as to by safety switch once
Triggering, be not in that safety switch triggers insecure situation.
Embodiment 2
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 5, the present embodiment limiter of speed include rope sheave 15, sheave shaft 24, eccentric unit 26,
Braking brake pad 2, dead-front switchboard 4, brake safe switch 3, voussoir 11, centrifugally regulated part 14 and riser 1, sheave shaft 24 pass through
Riser 1 is set, and rope sheave 15 is set on the sheave shaft 24 of the side of riser 1, and rope sheave 15 is the first wheel face close to the side of riser 1
15a, side of the rope sheave 15 away from riser 1 are the second wheel face 15b；Wherein, eccentric unit 26 includes pouring weight 16, safety switch re-packs
17th, rotating shaft 18 and pad 19 are centrifuged, rope sheave hole 26 is provided with rope sheave, centrifugation rotating shaft 18 passes through rope sheave hole 26, and pad 19 is set in
Centrifugation rotating shaft 18 is located at the wheel face 15b sides of rope sheave 15 second, pouring weight 16, safety switch re-pack 17 be sequentially sleeved at from outside to inside from
Heart rotating shaft 18 is located at the wheel face 15a sides of rope sheave 15 first；Centrifugally regulated part 14 is arranged on the second wheel face 15b of rope sheave, and centrifugation is adjusted
The end of section part 14 contacts with pad 19；First wheel face 15a of rope sheave is provided with the first wedge surface 152, voussoir 11 located at rope sheave the
Between one wheel face 15a and braking brake pad 2, voussoir 11 is provided with the second wedge surface 111, second wedge surface 111 and the first of rope sheave
Wedge surface 152 is the helicoid being engaged, and has the function that inclined-plane self-locking and connecting rod amplification；Pouring weight 16 re-packs 17 provided with safety switch
Side be connected with the one end of connecting rod 12, the other end of connecting rod 12 is connected with voussoir 11；
Braking brake pad 2 is set on sheave shaft 24 and its position is between rope sheave 15, riser 1, braking brake pad 2
Inner surface is provided with braking limit shaft 5, and braking limit shaft 5 passes through the spacing shaft mounting hole 25 of braking on riser；Dead-front switchboard 4 is set
In the opposite side of riser 1, the center of dead-front switchboard 4 is corresponding with the axial line of sheave shaft 24, and dead-front switchboard 4 is provided with spacing
Hole 27, the end of braking limit shaft 5 pass through the spacing hole 27；Safety switch re-packs 17 with the synchronous axial system of pouring weight 16, and then band
Dynamic dead-front switchboard 4 rotates；Brake safe switch 3 is located at the bottom or top at the center of dead-front switchboard 4, dead-front switchboard
4 rotations can destroy brake safe switch 3.
It is spacing by the spacing hole 27 on riser 1 to brake limit shaft 5 so that braking brake pad 2 stops operating, and then stop wedge
Block 11.
Limiter of speed also includes Limit Bearing 21, the rope sheave spacer 22 being set on sheave shaft 24, and rope sheave 15 is set in spacing
On bearing 21, the voussoir 11 is set on rope sheave spacer 22, rope sheave spacer 22 located at braking brake pad 2, Limit Bearing 21 it
Between, the side of rope sheave spacer 22 and braking axial gap of the sassafras block 2 into setpoint distance on sheave shaft 24 of rubbing are assembled, rope sheave spacer
22 opposite side is contacted with the inner ring of Limit Bearing 21, and rope sheave spacer 22 is arranged on sheave shaft 24.
Under a kind of state, when the elevator normally travel for the limiter of speed for being provided with the present embodiment does not exceed the speed limit, the shape that do not exceed the speed limit
State is that the rotating speed of rope sheave 15 is expected in adjustable range in centrifugally regulated part 14, and pouring weight 16 is fully located in the inner surface 15a of rope sheave
It will not be thrown away to the outward flange of rope sheave, that is, the rotation relative to rope sheave hole 26 does not occur for centrifugation rotating shaft 18；Centrifugally regulated part
14 one end contact with pad 19, have the function that to amplify centrifugal force, the structure of centrifugally regulated part 14 and space and centrifugation rotating shaft 18
The arrangement of Upper gasket 19 can effectively avoid low speed covibration.
Under another state, after the elevator overspeed of limiter of speed of the present embodiment is installed so that after rope sheave hypervelocity, rope sheave 15
When rotating speed exceedes centrifugally regulated part 14 expection adjustable range, under the action of the centrifugal force, centrifugation rotating shaft 18 occurs in rope sheave hole 26
Rotate so that pouring weight 16 is thrown away to the outward flange of rope sheave；First wedge surface 152 relatively rotates with the second wedge surface 111, due to even
The connection of bar 12 causes pouring weight 16 to be rotated with dynamic voussoir 11, and the second wedge surface of voussoir 11 produces phase with the first wedge surface on rope sheave 15
Can be produced by one and rotationally and axially moved for screw, that is, voussoir 11, voussoir moves axially to be connect with the braking sassafras block 2 that rubs
When touching, braking rubs, and and then voussoir 11 rotates sassafras block 2, when the braking limit shaft 5 that braking rubs on sassafras block 2 is braking spacing shaft mounting hole
When 25 range of motion are to halted state, two helicoids on voussoir 11 and rope sheave 15 produce inclined-plane self-locking and rubbed simultaneously with braking sassafras
Block 2 produces brake force.
Safety switch re-packs 17 structures for U-shaped or S-shaped, the end 4a parts of dead-front switchboard 4 extend into U-shaped or
In the breach 17a of S-shaped.The shape and structure setting so that safety switch re-pack 17 rotations can effectively drive dead-front switchboard 4 with
Rotation, and then destroys brake safe switch 3.
Pouring weight 16, safety switch re-pack 17, pad 19 with centrifuging this feature of rotating shaft 18 around the rotation of rope sheave hole 26, when
When the speed of rope sheave 15 exceedes default rotating speed, pouring weight 16 is thrown away to rope sheave outward flange, and safety switch re-packs 17 can be same with pouring weight 16
Step is rotated, and 17 certain angle is turned to when safety switch re-packs, and safety switch re-packs 17 with can be contacted with dead-front switchboard 4, by
In the design of the structure of two plates, now safety switch re-pack 17 and dead-front switchboard 4 cannot come off and can rope-winding wheel 15 together
Rotate；After being rotated further, the one end of dead-front switchboard 4 turns to contacts and destroys brake safe switch 3 with brake safe switch 3,
Dead-front switchboard 4 will destroy safety switch 3, now complete electrical speed monitoring.Brake safe switch 3 is two-way all may be used
With triggering, exceed the speed limit all trigger up and down；Surpass monitoring safety switch 10 on another and be to provide hypervelocity monitoring signals, only upper super
When trigger；It is not in continuously the risk do not fallen once to employ the triggering of this structure to be.
The wiring wheel bore of pouring weight 16 is turned out, and the inclined-plane of the wedge surface of voussoir 11 and rope sheave 15 is spinned in the presence of connecting rod 12
Motion, the i.e. rope-winding wheel 15 of voussoir 11 have one to rotate and have an axial movement；Produced when voussoir 11 rubs after sassafras block 2 contacts with braking
Raw first brake force, braking the sassafras block 2 that rubs at the same time has a rotation, and this angle rotated is pacified by the braking limit shaft on riser
Dress hole 25 determines that rotation is intended merely to further play safety switch, and rotational angle is not determined by braking limit shaft mounting hole 25, is leaned on
The lead angle for braking rub sassafras block 2 and voussoir 11 determines.
As a kind of preferable structure, dead-front switchboard 4 can also select a variety of knots such as U-board or W-shaped plate or V shaped slab
Structure, the end 4a of U-board extend into safety switch re-pack 17 breach 17a in.Safety switch re-packs 17 preferred U-shapeds or or S
The structures such as shape.
Pad 19 is polyhedron, when rope sheave hypervelocity, when pad 19 is rotated by centrifugal action, so as to be rotated with mobile gasket 19
Being rubbed with centrifugally regulated part 14, when centrifugally regulated part is expected in adjustable range, pouring weight will not outwards be thrown away rope sheave rotating speed,
The arrangement of centrifugally regulated part and pad effectively avoids low speed covibration.So as to be rotated and centrifugally regulated part with mobile gasket 19
14 produce a frictional force.Under normality, pad 19 contacts with centrifugally regulated part 14, that is, contacted between the two in the presence of one
Precompression, pad 19 rotates during hypervelocity, and the contact between pad 19 and centrifugally regulated part 14 increases on the basis of precompression
The frictional force for having added a rotational band.
Spacing hole 27 is longitudinally disposed slotted hole.Braking limit shaft 5 passes through the spacing shaft mounting hole 25 of braking on riser 1
Carry out spacing, the movement of angle is realized in the range of the hole.
The other end of connecting rod 12 is connected with voussoir 11 by pitman shaft 20.
Dead-front switchboard 4 is arranged on centrally through dead-front switchboard spring shaft 7 on the end face 24a of sheave shaft 24, safety
Safety switch flat spring 6 is also arranged with switchboard spring shaft 7, safety switch flat spring 6 is located at dead-front switchboard 4 and safety open
Between the end for closing flat spring axle 7.
Braking, which rubs, is equipped with torsion spring 23 between sassafras block 2 and riser 1.When elevator falling occurs, triggering speed can shift to an earlier date,
What the rotation by braking the braking limit shaft 5 to rub on sassafras block can reliably destroy brake safe switch 3.Torsion spring 23 plays slow
Punching and certain reset response.
With dead-front switchboard 4 for symmetrical boundary, riser 1 is provided with symmetrically above surpasses monitoring safety with brake safe switch 3
Switch 10.
It 17 is also a pair that pouring weight 16, which is that a pair and safety switch re-pack, is symmetricly set on rope sheave 15, realizes and braking is pacified
The effect of two groups of the two-way triggering of full switch 3 is for counterpoise, makes rope sheave operating more steady.
In the present embodiment, it 17 is that the moment is consistent with the motion state of pouring weight 16 that safety switch, which re-packs, when rope sheave 15 exceed from
The adjusting force of heart regulating part 14, pouring weight 16 will be thrown away outward, that is, produce a rotation around centrifugation rotating shaft 18, now safety switch
Re-pack 17 also can and then rotate；It will be contacted when the angle that safety switch rotates reaches a timing with dead-front switchboard 4, due to sky
Between angle arrangement once both encounter and rope sheave 15 is also rotating, and both will rotate together, so as to by safety switch once
Triggering, be not in that safety switch triggers insecure situation.
Voussoir shape in the present embodiment can use various structures, wherein using circular voussoir as preferred construction.
Riser in the present embodiment can install the replacement such as flat board or wallboard of whole limiter of speed with other.
Embodiment 3
On the architecture basics of embodiment 1 or 2, guard plate switch spring axle 7 is provided with the center of dead-front switchboard 4,
The one end of guard plate switch spring axle 7 is fixed in the axial end of sheave shaft 24, and dead-front switchboard 4 is relative to guard plate switch spring
Axle 7 can realize rotation, i.e. the center drilling of dead-front switchboard 4 is set on guard plate switch spring axle 7.
A safety switch flat spring 6 is provided between the end of guard plate switch spring axle 7 and dead-front switchboard 4.
During elevator overspeed so that rope sheave exceedes default rotating speed, and dead-front switchboard 4 re-packs 17 drives together by safety switch
Rotate, by the triggering of brake safe switch 3, dead-front switchboard 4 is rotated after will brake safe switch 3 be destroyed, dead-front switchboard
Spring 6 is not affected by compression；Rope sheave 15 continues dead-front switchboard 4 during hypervelocity will switch the direction of flat spring 6 towards compressing secure
Produce an axial movement；After solving the problem of elevator overspeed, rope sheave reversion, safety switch flat spring 6 returns to normally not
Compressive state, pouring weight 16 move in the presence of centrifugally regulated part 14 to the direction at the center of sheave shaft 24, complete answering for pouring weight 16
Position motion, voussoir 11 are separated with axially braking the sassafras block 2 that rubs.In the reseting procedure, it is 17 same that pouring weight 16 drives safety switch to re-pack
Step rotate, safety switch re-pack 17 rotations drive dead-front switchboard 4 rotate, the rotation of dead-front switchboard causes brake safe to switch
3 complete to reset.
The structure of embodiment 1 or 2 or 3 applies in general to the speed limit in slower elevators.
Embodiment 4
As shown in figure 4, on the architecture basics of embodiment 1 or 2 or 3, limiter of speed also includes briquetting plate 51 and briquetting 52,
Briquetting plate 51 is rotatablely connected with the another side of riser 1, and the upper end of briquetting plate 51 is provided with briquetting 52, and briquetting 52 is located at rope sheave 15
The surface of rope sheave groove 151, the bottom of above-mentioned briquetting plate 51 is located at the top of braking limit shaft 5.
The limiter of speed of the present embodiment is mainly used on express elevator, the setting of briquetting plate 51 and briquetting 52 so that in voussoir
After 11 rub with braking and produce the first brake force after sassafras block 2 contact, the braking sassafras block 2 that rubs rotates to drive and brakes 5 turns of limit shaft
Dynamic, briquetting plate 51 is got in the rotation of braking limit shaft 5, makes briquetting plate 51 and the disequilibrium of briquetting 52 located at top, briquetting plate
51 rotational band dynamic pressure blocks 52 push, and will be pressed in steel wire rope in rope sheave groove 151 so as to briquetting 52, because self-lock mechanism produces the
Two brake force, effectively enhance the rate limitation to the hypervelocity of express elevator.
It is above preferred embodiment of the present utility model, the scope of protection of the utility model is not limited, for ability
The deformation and improvement that field technique personnel make according to mentality of designing of the present utility model, should all be considered as protection of the present utility model
Within the scope of.
Claims (10)
1. limiter of speed, including rope sheave (15), sheave shaft (24), rope sheave 15 are pivotally assemblied in sheave shaft 24, it is characterised in that
Also include voussoir (11) and stop mechanism, described voussoir 11 is pivotally matched with sheave shaft 24 and is in the first round of rope sheave 15
The side in face；The first round face of the rope sheave (15) is symmetrically installed with a pair of pouring weights (16) that can be rotated, and two pouring weights (16) rotate
It is connected in two symmetric points of described voussoir (11)；First wheel face of the rope sheave (15) forms the first wedge surface (152), institute
State voussoir (11) and form the second wedge surface (111), first wedge surface (152) and the second wedge surface (111) are two spirals that are adapted
Face；
Under rope sheave (15) overspeed condition, two pouring weights (16) produce centrifugal motion, make the first wedge surface (152), the second wedge surface (111) hair
Raw to relatively rotate, band dynamic voussoir (11) rotates and transverse shifting, is produced by stop mechanism and the stop of voussoir (11) is acted on, made
Rope sheave synchronously stops.
2. limiter of speed according to claim 1, it is characterised in that also including electric braking mechanism；Rope sheave (15) hypervelocity shape
Under state, the described electric braking mechanism action of pouring weight (16) triggering.
3. limiter of speed according to claim 2, it is characterised in that the electric braking mechanism includes dead-front switchboard (4)
Re-packed (17) with brake safe switch (3), two symmetrically arranged safety switches, two described safety switches re-pack (17) set respectively
In on described two pouring weights (16)；
Under rope sheave (15) overspeed condition, safety switch re-pack (17) can touch dead-front switchboard (4), dead-front switchboard (4) and then
Trigger brake safe switch (3).
4. limiter of speed according to claim 3, it is characterised in that the safety switch re-pack (17) be U-shaped or S-shaped, peace
The end (4a) of full switch plate (4) is stretched into U-shaped or the breach (17a) of S-shaped.
5. limiter of speed according to claim 3, it is characterised in that the dead-front switchboard (4) centrally through safety open
The end face (24a) that flat spring axle (7) is installed on sheave shaft (24) is closed, safety is arranged with the dead-front switchboard spring shaft (7)
Flat spring (6) is switched, the safety switch flat spring (6) is located at the dead-front switchboard (4) and dead-front switchboard spring shaft (7)
End between.
6. according to any described limiter of speeds of claim 3-5, it is characterised in that the stop mechanism includes braking brake pad
(2), the braking brake pad is provided with braking limit shaft (5)；
Under rope sheave (15) overspeed condition, the voussoir (11) laterally moves to fitting braking brake pad (2) and drives drag friction
Block (2) rotates, and braking brake pad (2) is stopped operating by braking limit shaft (5), and then stop voussoir (11).
7. limiter of speed according to claim 6, it is characterised in that spacing hole (27) is provided with the dead-front switchboard (4),
The braking limit shaft (5) passes through the spacing hole (27).
8. limiter of speed according to claim 7, it is characterised in that also include being provided with the vertical of the spacing shaft mounting hole (25) of braking
Plate (1), the sheave shaft (24) are arranged on riser (1), and the braking limit shaft (5) brakes spacing shaft mounting hole through described
(25)。
9. limiter of speed according to claim 8, it is characterised in that also including briquetting plate (51) and briquetting (52), the pressure
Block plate (51) is connected with the briquetting (52), and the briquetting plate (51) is rotatablely connected with riser (1), briquetting (52) the face rope
Race (151) is installed；
Under rope sheave overspeed condition, braking limit shaft (5) gets to briquetting plate (51), and briquetting plate (51) rotates, and then with dynamic pressure
Block (52) presses to rope sheave groove (151).
10. according to the limiter of speed described in claim any one of 1-5, it is characterised in that also including centrifugally regulated part (14), centrifugation
Rotating shaft (18) and pad (19), the centrifugation rotating shaft (18) are arranged on the rope sheave hole (28) of rope sheave (15), the centrifugation rotating shaft
(18) both ends are installed by described pad (19), pouring weight (16) respectively；The second wheel face installation of the rope sheave (15) it is described from
Heart regulating part (14)；Under pouring weight (16) apocarpy, drive centrifugation rotating shaft (18) to rotate, and then pad (19) is rotated and centrifugation
Regulating part (14) rubs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540442.4U CN207209660U (en) | 2017-05-16 | 2017-05-16 | Limiter of speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540442.4U CN207209660U (en) | 2017-05-16 | 2017-05-16 | Limiter of speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207209660U true CN207209660U (en) | 2018-04-10 |
Family
ID=61809721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720540442.4U Withdrawn - After Issue CN207209660U (en) | 2017-05-16 | 2017-05-16 | Limiter of speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207209660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750860A (en) * | 2018-08-03 | 2018-11-06 | 南通中力重科机械工程有限公司 | Centrifugal device and limiter of speed |
| CN108861944A (en) * | 2017-05-16 | 2018-11-23 | 杭州沪宁电梯部件股份有限公司 | Limiter of speed |
-
2017
- 2017-05-16 CN CN201720540442.4U patent/CN207209660U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861944A (en) * | 2017-05-16 | 2018-11-23 | 杭州沪宁电梯部件股份有限公司 | Limiter of speed |
| CN108861944B (en) * | 2017-05-16 | 2023-12-19 | 杭州沪宁电梯部件股份有限公司 | speed limiter |
| CN108750860A (en) * | 2018-08-03 | 2018-11-06 | 南通中力重科机械工程有限公司 | Centrifugal device and limiter of speed |
| CN108750860B (en) * | 2018-08-03 | 2024-02-13 | 南通中力科技有限公司 | Centrifugal device and speed limiter |
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