CN106927331A - A kind of speed limit anti-drop device for lift transformation - Google Patents
A kind of speed limit anti-drop device for lift transformation Download PDFInfo
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- CN106927331A CN106927331A CN201710237969.4A CN201710237969A CN106927331A CN 106927331 A CN106927331 A CN 106927331A CN 201710237969 A CN201710237969 A CN 201710237969A CN 106927331 A CN106927331 A CN 106927331A
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- Prior art keywords
- car
- bar
- transformation
- lift
- speed limit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Abstract
The invention provides a kind of speed limit anti-drop device for lift transformation, belong to hoisting machinery technical field.It solves the problems, such as simplified elevator transformation inconvenience.This is used for the anti-fall transformation device of speed limit of lift transformation, lift includes car, with guide rail, suspension hook and two catching devices, catching device is connected on car, the anti-fall transformation device of speed limit includes limiter of speed, tensioning wheel and mechanical connecting device, mechanical connecting device is connected on car, and mechanical connecting device is connected with catching device, limiter of speed sets the top of car, tensioning wheel is suspended on limiter of speed by steel wire rope closed loop, and tensioning wheel is located at the lower section of car, the fag end portion of steel wire rope is connected on mechanical connecting device., by setting up limiter of speed, tensioning wheel and mechanical connecting device, the fag end portion that closed loop is connected to the steel wire rope between limiter of speed and tensioning wheel is tightened together with car for it, if car speeding, limiter of speed is acted immediately, by car stop on guide rail.
Description
Technical field
The invention belongs to hoisting machinery technical field, it is related to a kind of lift, it is particularly a kind of for lift transformation
Speed limit anti-drop device.
Background technology
Simplified elevator refers to using electric block, traction machine, hoist engine, hydraulic power unit as drive device, by steel wire
Rope, chain, hydraulic jack etc. drive carrying apparatus, are oriented to along vertical or with direction gradient less than 15 ° rigidity in hoistway
Device delivers the hoisting machinery of goods, is mainly having 2 kinds of forms with the descending falling proof device of simplified elevator at present：1 is common
Catching device；2 limiter of speed safety tongs.
The hoisting machinery that General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China's on March 23rd, 2016 promulgates is regular
27.2 in inspection rule TSG Q7015-2016, it is stipulated that, it is necessary to check other in addition to direct effect fluid pressure type simplified elevator
Whether the simplified elevator of form sets overspeed descending protection device, and meets claimed below：
1st, overspeed descending protection device and can make the container for being loaded with rated load weight can using the manner of execution of machinery
By stop.
2nd, overspeed descending protection device sets effective electrical interlocking device, can when descending overspeed protective device is acted on
Cut off the electrical safety loop of simplified elevator.
3rd, the responsiveness of overspeed descending protection device is not less than the 115% of normal speed, and less than 0.8m/s.
Then just there is following problem in actual use：
1st, only it is made up of a pair common catching devices with the descending falling proof device of most of simplified elevator at present, is only met
1st requirement of new 27.2, inspection rule, does not meet 2,3 requirements, it is impossible to be continuing with, it is necessary to transform.
2nd, common catching device is replaced by limiter of speed safety tongs by transformation needs to install safety tongs additional under elevator car,
And catching device is removed, and the possible civil engineering of existing former standard lift does not meet pit depth not enough, i.e., it is many in actual conditions
Pit cannot down dig.
3rd, that common catching device is replaced by limiter of speed safety tongs man-hour by transformation is more long, and expense is higher.
The content of the invention
The purpose of the present invention is directed to existing technology and there is above mentioned problem, it is proposed that a kind of limit for lift transformation
Fast anti-fall device, its problem to be solved is if quickly and easily transformed original simplified elevator, and be transformed into
This is relatively low.
The purpose of the present invention can be realized by following technical proposal：A kind of anti-fall transformation of speed limit for lift transformation
Device, the lift includes car, the guide rail for being lifted for car, the suspension hook for drawing and hanging car and two
In the catching device that stop is carried out to lift, the catching device is connected on car, it is characterised in that the anti-fall transformation of speed limit
Device includes limiter of speed, tensioning wheel and mechanical connecting device, and the mechanical connecting device is connected on car, and mechanically connects dress
Put and be connected with catching device, the limiter of speed sets the top of car, the tensioning wheel is suspended on speed limit by steel wire rope closed loop
On device, and tensioning wheel is located at the lower section of car, and the fag end portion of the steel wire rope is connected on mechanical connecting device.
The anti-fall transformation device of this speed limit is connected to speed limit by setting up limiter of speed, tensioning wheel and mechanical connecting device, closed loop
The fag end portion of the steel wire rope between device and tensioning wheel is tightened together with car, if car speeding, limiter of speed is acted immediately, folder
Tight steel wire rope, when car continues to decline, steel wire rope pulls attachment means jack-up catching device so that rail is clamped in catching device action
Road, car stop on guide rail, stop motion.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, it is provided with for supporting machine on the car
The bridge type bracket of tool attachment means, the top of the car has at least two support beams, and the bridge type bracket is made as " several " word
Type, and two bases of bridge type bracket are respectively welded on the top surface of a support beam.Two base end faces of bridge type bracket are by weldering
Junction is directly welded in the support beam of car top, destroys original support beam structure so as to avoid drilling, it is ensured that original support beam
Rigidity.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, the mechanical connecting device includes main connection
Component and passive connecting elements, the bridge type bracket are two, each connection one on the main connecting elements and passive connecting elements
Catching device, and main connecting elements and passive connecting elements be respectively connected in a bridge type bracket, the fag end portion of the steel wire rope is connected
On main connecting elements, it is connected by connecting rod between the passive connecting elements and main connecting elements.Steel wire rope is in limiter of speed
Tighten up and drive main connecting elements to link under effect, main connecting elements drives its catching device for connecting to carry out stop and by connecting rod
Passive connecting elements is driven to link, passive connecting elements drives the catching device that it is connected while carrying out stop.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, the main connecting elements includes laterally interspersed
Main rotating bar in a bridge type bracket wherein, the passive connecting elements includes laterally being interspersed in another bridge type bracket
Passive rotation bar, the middle part of the main rotating bar and the middle part of passive connecting rod are arranged with the support for connecting catching device
Sleeve pipe, on the side wall of the bridge type bracket for connecting main rotating bar have Safetyelectric switch, the Safetyelectric switch and
The electrical safety loop of simplified elevator is connected, the vertical steel wire being fixed with for the steel wire rope that is connected in one end of the main rotating bar
Bar is made in rope connecting rod and the rotation for being engaged with Safetyelectric switch, and the other end of main rotating bar is vertically fixed with main transmission
Bar, one end of the passive rotation bar is vertically fixed with passive drive link, and the passive drive link is by connecting rod and main transmission bar
It is connected.When steel wire rope drives rotating bar to be rotated relative to bridge type bracket by steel wire rope connecting rod, rotation is made bar and is turned with main
Lever is rotated and can trigger Safetyelectric switch, so as to cut off the electrical safety loop of simplified elevator, further stop.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, two branch are connected with the supporting sleeve
Strut, the free end of the support bar has connecting hole.Top pull connecting rod is interspersed in connecting hole, and is locked by nut
Tightly, it is to avoid abjection；The axial direction of connecting hole is perpendicular with support bar and supporting sleeve, and bonding strength is high, and it is smaller to meet with stresses,
It is hardly damaged.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, offered on the side wall of the main rotating bar
Locating slot, the locating slot is axially arranged along main rotating bar, and first is offered on the side tube wall of the supporting sleeve
Spiral positioning hole, the first spiral dowel is connected with the first spiral positioning hole, when supporting sleeve is connected in main rotating bar
It is upper when, the bottom of the first spiral dowel is resisted against the bottom land of locating slot.By adjusting the first spiral dowel relative to spiral shell
The position for revolving location hole can be adjusted to supporting sleeve relative to the position of main rotating bar, such that it is able to adapt to different type
With the transformation of the simplified elevator of size；Spiral positioning hole and support bar are located on two relative tube walls of supporting sleeve respectively,
I.e. support bar, main rotating bar and spiral dowel are in the same plane, and stress distribution is more reasonable during braking, is hardly damaged.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, one end of the main rotating bar sets limited
Position gear edge, is also arranged with a spacing collar on the other end, the second spiral positioning hole, described second are offered on the spacing collar
The second spiral dowel is connected with spiral positioning hole, when the spacing collar is connected in main rotating bar, the second spiral dowel
Bottom be resisted against the bottom land of locating slot, the lateral wall on the limiting block edge is resisted against the side internal face of bridge type bracket, described
The lateral wall of the spacing collar is resisted against on the opposite side internal face of bridge type bracket.Limiting block beats the inner side of bar, limit along rotation is located at
The position collar is located at the inner side of main transmission bar, and limiting block edge and the spacing collar are engaged can be to the phase of main rotating bar and bridge type bracket
Position is carried out spacing, it is ensured that the cooperation of main rotating bar and steel wire rope in place, while also ensure to rotate and making bar and can trigger safety
Electric switch.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, the catching device include fixed plate, tooth bar,
Fix bar and two cams for being folded on guide rail, the plate face center of the fixed plate have the chute being vertically arranged, institute
Fix bar is stated vertically to intert and be slidably connected in chute, and the length direction of tooth bar and the length direction of chute are consistent, it is described
One end of fix bar is fixedly connected with car, and the other end is fixedly connected with tooth bar, and two cams are respectively vertically plugged in by a locating shaft
In fixed plate, the locating shaft is connected on the eccentric position of corresponding cam, and two cams are respectively coaxially connected with one
Gear, two gears are symmetrical arranged and engagement is connected on tooth bar.During braking, fix bar band carry-over bar links, rack drives
Two cam rotations, and cause that the clearance distance between two cams becomes less and less, until track is blocked, so that car
Stop.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, the catching device is also adjusted including top pull power
Component, the top pull power adjustment component includes the fixed cover, spring and the top pull power adjusting lever that are connected in fixed plate, the top pull
Power adjusting lever is connected in fixed cover by spring slide, and the bottom of top pull power adjusting lever is resisted against on the top surface of fix bar.
By adjusting the pretightning force of spring on top pull power adjusting lever, the strain size of top pull power can be adjusted it is default, be adapted to
The transformation of the lift with different rated load weights.
In the above-mentioned anti-fall transformation device of the speed limit for lift transformation, the fixed plate is connected by some top pulls
Bar is connected on car, and the top of the top pull connecting rod has the company being connected in by bolt assembly in the plate face of fixed plate side
Ring is connect, the bottom of top pull connecting rod is vertically connected on car and by nut check.Top pull connecting rod by bolt assembly with
Fixed plate is fixedly connected with, and the wall of connection ring is fitted in the plate face of fixed plate, is not only connected firmly, and convenient disassembly；Top pull
Connecting rod is plugged on car from top to bottom, and by nut check, the bottom of not only convenient disassembly, and top pull connecting rod has
There is the external screw thread of a big section, installation and debugging are convenient, be suitable to the lift transformation of different height and size.
Compared with prior art, the present invention has the following advantages that：
1st, by setting up limiter of speed, tensioning wheel and mechanical connecting device, can be to being provided only with the simple liter of common catching device
Drop machine is transformed, and makes it have speed limiting function, reaches the quality testing standard of country；
2nd, the present invention need not set limiter of speed safety tongs, save and install transformation time and modifier's muscle power, and do not receive civil engineering
Influence, transformation difficulty it is small；
3rd, the mechanical connecting device in the present invention is adjustable connecting elements, is installed with more handling, can be preferably
The different mounting structure of reply former standard simplified elevator.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the front schematic view of catching device in the present invention.
Fig. 3 is the schematic rear view of catching device in the present invention.
Fig. 4 is the schematic top plan view of catching device in the present invention.
Fig. 5 is the structural representation of top pull power adjustment component in the present invention.
Fig. 6 is the attachment structure schematic diagram of main connecting elements and bridge type bracket in the present invention.
Fig. 7 is enlarged drawing at A in Fig. 1.
Fig. 8 is the structural representation of main connecting elements in the present invention.
Fig. 9 is enlarged drawing at B in Fig. 1.
Figure 10 is the structural representation of passive connecting elements in the present invention.
In figure, 1, car；2nd, guide rail；3rd, suspension hook；4th, catching device；41st, fixed plate；411st, chute；42nd, tooth bar；43rd, it is fixed
Bar；44th, cam；45th, top pull power adjustment component；451st, fixed cover；452nd, spring；453rd, top pull power adjusting lever；454th, slip cap；
455th, adjustment bolt；456th, adjusting nut；457th, adjustment plate 46, locating shaft；47th, gear；48th, limited block；5th, limiter of speed；6th, open
Bearing up pulley；7th, mechanical connecting device；71st, main connecting elements；711st, main rotating bar；712nd, steel wire rope connecting rod；713rd, rotate and make bar；
714th, main transmission bar；715th, locating slot；716th, limiting block edge；72nd, passive connecting elements；721st, passive rotation bar；722nd, it is passive
Drive link；723rd, spacing edge；724th, locating groove；73rd, connecting rod；8th, steel wire rope；9th, top pull connecting rod；91st, connection ring；10th, bridge
Type support；11st, support beam；12nd, supporting sleeve；121st, support bar；122nd, connecting hole；123rd, the first spiral positioning hole；13rd, safety
Electric switch；14th, the first spiral dowel；15th, the spacing collar；151st, the second spiral positioning hole；16th, the second spiral dowel；
17th, bearing block；18th, auxiliary support.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Reference picture 1, the present embodiment is a kind of anti-fall transformation device of speed limit for lift transformation, and lift includes car
1st, it is used to carry out stop to lift for the guide rail 2 for the lifting of car 1, the suspension hook 3 for drawing and hanging car 1 and two
Catching device 4, catching device 4 is connected on car 1, and the anti-fall transformation device of speed limit includes limiter of speed 5, tensioning wheel 6 and mechanically connects
Device 7, mechanical connecting device 7 is connected on car 1, and mechanical connecting device 7 is connected with catching device 4, and limiter of speed 5 sets sedan-chair
The top in railway carriage or compartment 1, may be provided in the computer room of simplified elevator, may also be arranged in the hoistway of the lifting of car 1, and tensioning wheel 6 passes through
The closed loop of steel wire rope 8 is suspended on the speed limited wheel of limiter of speed 5, and tensioning wheel 6 is located at the lower section of car 1, and the fag end portion of steel wire rope 8 consolidates
It is connected on mechanical connecting device 7.
Concrete structure is as follows, and with reference to Fig. 2, Fig. 3 and Fig. 4, catching device 4 includes fixed plate 41, tooth bar 42, fix bar 43, two
Individual cam 44 for being folded on guide rail 2 and component 45 is adjusted for carrying out spacing top pull power to the stroke of fix bar 43, Gu
The plate face center of fixed board 41 has the chute 411 being vertically arranged, and fix bar 43 is vertically interspersed and is slidably connected in chute 411,
And the length direction of tooth bar 42 is consistent with the length direction of chute 411, one end and the car 1 of fix bar 43 are fixedly connected with, the other end
It is fixedly connected with tooth bar 42, two cams 44 are respectively vertically plugged in fixed plate 41 by a locating shaft 46, and locating shaft 46 connects respectively
It is connected on the eccentric position of corresponding cam 44, two cams 44 are respectively coaxially connected with a gear 47, two teeth by key pin
Wheel 47 is symmetrical arranged and engagement is connected on tooth bar 42.Further, one respectively is made as on two wheel faces of cam 44
The confined planes 441 of plane, when catching device 4 carries out stop, two confined planes of cam 44 441 are born against the two of guide rail 2
On side, i.e., after two cams 44 are rotated with gear 47, to after being enough to stop lift, cam 44 is with fiber for gap shrinks
Cotton 441 is resisted against on guide rail 2, and stop is more firm, and stability is more preferable.
With reference to Fig. 5, top pull power adjustment component 45 includes the fixed cover 451, the spring 452, top pull that are connected in fixed plate 41
Power adjusting lever 453, slip cap 454, adjustment bolt 455, adjusting nut 456 and adjustment plate 457, slip cap 454 are built in fixation
In set 451, the top of top pull power adjusting lever 453 is slided and is plugged in slip cap 454, and the top of spring 452 is resisted against slip cap
On 454 bottom surface, the bottom of spring 452 is resisted against the gear of the bottom of top pull power adjusting lever 453 along upper, and adjustment plate 457 is welded on solid
Surely the top of set 451, and adjustment plate 457 has screwed hole, and the screw thread of adjustment bolt 455 is screwed in screwed hole, and adjustment bolt
455 bottom is resisted against on the top surface of slip cap 454, and slip cap 454 can be adjusted in fixed cover 451 by adjustment bolt 455
Interior position, so as to the pretightning force to spring 452 is adjusted, to adapt to the transformation of different simplified elevators.Adjusting nut 456
It is screwed in adjustment bolt 455, and the bottom surface of adjusting nut 456 is resisted against on the top surface of adjustment plate 457, the energy of adjusting nut 456
Locking is enough carried out to adjustment bolt 455 and avoids abjection.
With reference to Fig. 1, Fig. 6 and Fig. 7, the top of car 1 has at least two support beams 11, is provided with for propping up on car 1
The bridge type bracket 10 of mechanical connecting device 7 is supportted, bridge type bracket 10 is two, and pass through welding respectively and be connected in the two of support beam 11
End, bridge type bracket 10 is made as "Ji" type, and two bases of bridge type bracket 10 are respectively welded on the top surface of a support beam 11, Gu
Fixed pole 43 is connected in the bearing block 17 on the top of bridge type bracket 10.Mechanical connecting device 7 includes main connecting elements 71 and passively connects
Connection member 72, the bridge type bracket 10 is two, one catching device 4 of each connection on main connecting elements 71 and passive connecting elements 72,
And main connecting elements 71 and passive connecting elements 72 are respectively connected in a bridge type bracket 10, the fag end portion of steel wire rope 8 is connected in master
On connecting elements 71, it is connected by connecting rod 73 between passive connecting elements 72 and main connecting elements 71.
With reference to Fig. 6-Figure 10, main connecting elements 71 includes laterally being interspersed in the punching press preformed hole of one of bridge type bracket 10
On main rotating bar 711, passive connecting elements 72 include laterally be interspersed on the punching press preformed hole of another bridge type bracket 10
The middle part of passive rotation bar 721, the middle part of main rotating bar 711 and passive connecting rod is arranged with the branch for connecting catching device 4
Support set pipe 12, for having Safetyelectric switch 13, safe electrical appliance on the side wall of the bridge type bracket 10 for connecting main rotating bar 711
Switch 13 is connected with the electrical safety loop of simplified elevator, and one end of main rotating bar 711 is vertically fixed with for the steel wire that is connected
Bar 713 is made in the steel wire rope connecting rod 712 of rope 8 and the rotation for being engaged with Safetyelectric switch 13, main rotating bar 711 it is another
One end is vertically fixed with main transmission bar 714, and one end of passive rotation bar 721 is vertically fixed with passive drive link 722, passive transmission
Bar 722 is connected by connecting rod 73 with main transmission bar 714.
Two support bars 121 are connected with supporting sleeve 12, the free end of support bar 121 has connecting hole 122.Main rotation
Locating slot 715 is offered on the side wall of bar 711, locating slot 715 is axially arranged along main rotating bar 711, supporting sleeve 12
The first spiral positioning hole 123 is offered on the tube wall of side, the first spiral dowel 14 is connected with the first spiral positioning hole 123,
When supporting sleeve 12 is connected in main rotating bar 711, the bottom of the first spiral dowel 14 is resisted against the groove of locating slot 715
Bottom.Locating groove 724 is offered on the side wall of passive rotation bar 721, when supporting sleeve 12 is connected on passive rotation bar 721
When, the bottom of the first spiral dowel 14 is resisted against the bottom land of locating groove 724.
One end of main rotating bar 711 is welded with limiting block along 716, and a spacing collar 15 is also arranged with the other end, spacing
The second spiral positioning hole 151 is offered on the collar 15, the second spiral dowel 16 is connected with the second spiral positioning hole 151, when
The spacing collar 15 is connected in when in main rotating bar 711, and the bottom of the second spiral dowel 16 is resisted against the bottom land of locating slot 715,
Limiting block is resisted against the side internal face of bridge type bracket 10 along 716 lateral wall, and the lateral wall of the spacing collar 15 is resisted against bridge type
On the opposite side internal face of support 10.One end of passive rotation bar 721 is arranged with a spacing collar 15, other end welding limited location
Along 723, when the spacing collar 15 is connected on passive rotation bar 721, the bottom of the second spiral dowel 16 is resisted against locator card
The bottom land of groove 724, the spacing lateral wall along 723 is resisted against the side internal face of bridge type bracket 10, the lateral wall of the spacing collar 15
It is resisted against on the opposite side internal face of bridge type bracket 10
With reference to Fig. 2, Fig. 3, Fig. 7, Fig. 8, Fig. 9 and Figure 10, fixed plate 41 is connected in support bar by some top pull connecting rods 9
On 121, the hypomere of top pull connecting rod 9 has external screw thread, and top pull connecting rod 9 is interspersed in connecting hole 122 and by nut check,
The top of top pull connecting rod 9 has connection ring 91, and is locked in the side plate face of fixed plate 41 by bolt assembly, the present embodiment
Cam 44 and gear 47 are located in another lateral plates of fixed plate 41, and the upper and lower side of the lateral plates respectively has a limited block
48, limited block 48 enables to fixed plate 41 to be always positioned near guide rail 2, it is to avoid skew.
The installation steps of the present embodiment are as follows：
1st, a bridge type bracket 10 is respectively welded at the two ends of support beam 11 of car 1, and is divided in bridge type bracket 10 at two
Main connecting elements 71 and passive connecting elements 72 be not installed, then by connecting rod 73 by main connecting elements 71 and passive connecting elements 72
It is connected；
2nd, two catching devices 4 are connected in bridge type bracket 10 by fix bar 43 respectively, and two catching devices 4 is distinguished
It is connected with main connecting elements 71 and passive connecting elements 72 by top pull connecting rod 9；
3rd, limiter of speed 5 is set on the top of guide rail 2, bottom sets tensioning wheel 6, and the closed loop of steel wire rope 8 is connected into speed limit
On device 5 and tensioning wheel 6, and the fag end portion of steel wire rope 8 is connected in the steel wire rope connecting rod 712 of main connecting elements 71.
The anti-fall principle of speed limit of the present embodiment after installing is as follows：By the steel wire rope 8 of limiter of speed 5 around tensioning wheel
6 form a closed loop, and its fag end portion tightens together with steel wire rope connecting rod 712, and by being fixed in bridge type bracket 10
Main connecting elements 71 is coupled together with catching device 4, if car 1 exceeds the speed limit, limiter of speed 5 is acted immediately, and clamping steel wire rope 8 works as sedan-chair
When railway carriage or compartment declines 1, steel wire rope 8 pulls steel wire rope connecting rod 712 to cause the start-up operation of mechanical connecting device 7 and jack-up two is prevented simultaneously
Pendant device 4, fix bar 43 is moved down with carry-over bar 42, and causes that cam 44 is rotated and clamps guide rail 2, while main connecting elements 71 is triggered
Safetyelectric switch 13, cuts off the electrical safety loop of simplified elevator, further the stop of car 1 on guide rail 2, stops fortune
It is dynamic.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (10)
1. it is a kind of for lift transformation the anti-fall transformation device of speed limit, the lift include car (1), for supplying car
(1) guide rail (2) of lifting, the suspension hook (3) for drawing and hanging car (1) and two prevent for carrying out stop to lift
Pendant device (4), the catching device (4) is connected on car (1), it is characterised in that the anti-fall transformation device of speed limit includes speed limit
Device (5), tensioning wheel (6) and mechanical connecting device (7), the mechanical connecting device (7) are connected on car (1), and machinery is even
Connection device (7) is connected with catching device (4), and the limiter of speed (5) sets the top of car (1), and the tensioning wheel (6) is by steel
Cord (8) closed loop is suspended on limiter of speed (5), and tensioning wheel (6) is positioned at the lower section of car (1), the fag end of the steel wire rope (8)
Portion is connected on mechanical connecting device (7).
2. it is according to claim 1 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the car
(1) bridge type bracket (10) for supporting mechanical connecting device (7) is provided with, the top of the car (1) has at least two
Root support beam (11), the bridge type bracket (10) is made as "Ji" type, and two bases of bridge type bracket (10) are respectively welded on one
On the top surface of support beam (11).
3. it is according to claim 2 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the machinery
Attachment means (7) include main connecting elements (71) and passive connecting elements (72), and the bridge type bracket (10) is two, the master
One catching device of each connection (4) on connecting elements (71) and passive connecting elements (72), and main connecting elements (71) and passive connection
Component (72) is respectively connected in a bridge type bracket (10), and the fag end portion of the steel wire rope (8) is connected on main connecting elements (71),
It is connected by connecting rod (73) between the passive connecting elements (72) and main connecting elements (71).
4. it is according to claim 3 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the main company
Connection member (71) includes the horizontal main rotating bar (711) being interspersed in one of bridge type bracket (10), the passive connection structure
Part (72) includes the horizontal passive rotation bar (721) being interspersed in another bridge type bracket (10), the main rotating bar (711)
The middle part of middle part and passive connecting rod is arranged with the supporting sleeve (12) for connecting catching device (4), for connecting main rotation
There is Safetyelectric switch (13), the Safetyelectric switch (13) and letter on the side wall of the bridge type bracket (10) of bar (711)
The electrical safety loop of easy lift is connected, and one end of the main rotating bar (711) is vertically fixed with for the steel wire rope that is connected (8)
Steel wire rope connecting rod (712) and the rotation for being engaged with Safetyelectric switch (13) make bar (713), main rotating bar
(711) the other end is vertically fixed with main transmission bar (714), and one end of the passive rotation bar (721) is vertical to be fixed with passively
Drive link (722), the passive drive link (722) is connected by connecting rod (73) with main transmission bar (714).
5. it is according to claim 4 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the support
Two support bars (121) are connected with sleeve pipe (12), the free end of the support bar (121) has connecting hole (122).
6. it is according to claim 5 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the master turn
Locating slot (715) is offered on the side wall of lever (711), the locating slot (715) sets along the axial direction of main rotating bar (711)
Put, the first spiral positioning hole (123), the first spiral positioning hole are offered on the side tube wall of the supporting sleeve (12)
(123) the first spiral dowel (14) is connected with, when supporting sleeve (12) is connected in main rotating bar (711), the first spiral shell
The bottom of rotation alignment pin (14) is resisted against the bottom land of locating slot (715).
7. it is according to claim 6 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the master turn
One end of lever (711) is provided with limiting block along (716), and a spacing collar (15), the stop collar are also arranged with the other end
Offered on ring (15) in the second spiral positioning hole (151), the second spiral positioning hole (151) and be connected with the second spiral positioning
Pin (16), when the spacing collar (15) is connected in main rotating bar (711), the bottom of the second spiral dowel (16) is resisted against determines
The bottom land of position groove (715), the limiting block is resisted against the side internal face of bridge type bracket (10) along the lateral wall of (716), described
The lateral wall of the spacing collar (15) is resisted against on the opposite side internal face of bridge type bracket (10).
8. the anti-fall transformation device of speed limit transformed for lift according to any one of claim 1-7, its feature exists
In the catching device (4) is used to be folded on guide rail (2) including fixed plate (41), tooth bar (42), fix bar (43), two
Cam (44) and adjust component (45), the plate of the fixed plate (41) for carrying out spacing top pull power to fix bar (43) stroke
Face center has the chute (411) being vertically arranged, and the fix bar (43) is vertically interspersed and is slidably connected in chute (411),
And the length direction of tooth bar (42) is consistent with the length direction of chute (411), one end and car (1) phase of the fix bar (43)
It is connected, the other end is fixedly connected with tooth bar (42), and two cams (44) are respectively vertically plugged in fixed plate by a locating shaft (46)
(41) on, the locating shaft (46) is connected on the eccentric position of corresponding cam (44), and two cams (44) are each same
Axle is connected with a gear (47), and two gears (47) are symmetrical arranged and engagement is connected on tooth bar (42).
9. it is according to claim 8 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that the top pull
Power adjusts component (45) includes the fixed cover (451), spring (452) and the top pull power adjusting lever that are connected in fixed plate (41)
(453), the top pull power adjusting lever (453) is slidably connected in fixed cover (451) by spring (452), and top pull power is adjusted
The bottom of bar (453) is resisted against on the top surface of fix bar (43).
10. it is according to claim 9 for lift transformation the anti-fall transformation device of speed limit, it is characterised in that it is described solid
Fixed board (41) is connected on car (1) by some top pull connecting rods (9), and the top of the top pull connecting rod (9) has and passes through
Bolt assembly is connected in the connection ring (91) in the plate face of fixed plate (41) side, and the bottom of top pull connecting rod (9) is vertically connected on
On car (1) and by nut check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710237969.4A CN106927331B (en) | 2017-04-13 | 2017-04-13 | Speed-limiting anti-falling device for elevator transformation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710237969.4A CN106927331B (en) | 2017-04-13 | 2017-04-13 | Speed-limiting anti-falling device for elevator transformation |
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| CN106927331A true CN106927331A (en) | 2017-07-07 |
| CN106927331B CN106927331B (en) | 2022-10-28 |
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| CN201710237969.4A Active CN106927331B (en) | 2017-04-13 | 2017-04-13 | Speed-limiting anti-falling device for elevator transformation |
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| Publication number | Publication date |
|---|---|
| CN106927331B (en) | 2022-10-28 |
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