CN205061227U - Diversion constant force overspeed governor - Google Patents

Abstract

The utility model discloses a diversion constant force overspeed governor, including base and vertical fixation on the base and the first curb plate, the second curb plate that parallel, first curb plate and second curb plate assemble the rope sheave axle, rope sheave axle normal running fit rope sheave, wire rope is walked around to the rope sheave, be equipped with centrifugal connecting rod mechanism of amplification on the rope sheave, a centrifugal connecting rod mechanism of amplification and a diversion mechanism of amplification are articulated, assemble in the rope sheave axle diversion mechanism of amplification rotary type, a diversion mechanism of amplification interlock guiding mechanism, guiding mechanism can push up the upper end of touching a trigger mechanism along rope sheave axle axial displacement under guiding mechanism's two lugs, and the lower extreme of trigger mechanism articulates fixture, can centre gripping rope sheave or wire rope after the fixture action. The utility model discloses diversion constant force overspeed governor, high low -speed trigger that response time is fast, centrifugal force amplify the effect obvious, exceed the speed limit that it is stable to detect control, can produce the pulling force of carrying invariable relatively.

Description

Break-in constant force velocity limiter

Technical field

The utility model belongs to speed-limit device technical field, is specifically related to a kind of break-in constant force velocity limiter, for field of mechanical technique.

Background technology

Elevator is trigger electric switch when elevator overspeed with mechanical velocity limiter, and mechanical action produces measurement and the actuating unit that lift power carrys out triggering secure brake equipment.Mainly contain pendulum and centrifugal two kinds at present, pendulum or rigidity clamp instantaneous triggering class velocity limiter and easily realize automatically reseting, and are used for machine room or speed lower than 1m/s elevator.Speed is greater than to the velocity limiter of the multiplex centrifugal resilient clamp of 1m/s, this type of velocity limiter many employings ratchet triggers, and hypervelocity trigger mechanism acts on the circumferencial direction of ratchet, and impulsive force is larger, the measuring spring that simultaneously exceeds the speed limit is placed in debugging inconvenience on rope sheave, affects greatly by acceleration and deceleration, easily causes misoperation.Particularly all to adjust in the speed that triggers with below 0.5m/s elevator and be greater than more than 0.8m/s; superpose ratchet device triggering speed course latitude error larger; hypervelocity response time length and hysteresis quality cause brake system energy to increase, and create larger security risk to breaking rope protecting, overspeed protection etc. by the brake system that velocity limiter controls.

In addition, in the market velocity limiter ubiquity to increase dynamic lift power with cable wire slippage excessive and control unstable, easily cause velocity limiter or shift mechanism to damage, safety tongs or other brake equipment cannot normally work, and there is higher security risk.

Therefore, for low speed observing and controlling, improve the problems such as range rate accuracy, response time, raising adjustable, minimizing misoperation, improving system safety by providing constant lift power is one of scheme of dealing with problems.

Utility model content

For above-mentioned prior art Problems existing, the utility model provides a kind of break-in constant force velocity limiter, which solves that current low speed hypervelocity measures that difficulty, the long hysteresis quality of response time are large, surely the property controlled difference, the difficulty that automatically resets, speed debugging inconvenience, misoperation such as to have a big risk at the realistic problem lift power.

The utility model mechanism adopts centrifugal weight and connecting rod that rotary motion is converted into axial motion by steel ball, the impact vibrated can be reduced, the spacing more convenient realization of the adjustment that hypervelocity is triggered, its V-type face secondary again by angle after being amplified by connecting rod by centnifugal force is amplified, solve the problem of low speed hypervelocity speed limit, longitudinal travel catching mode is adopted to improve triggering response time, by adopting laser treatment technique and structure design or adopting clamped wire mode to solve constant lift power, thus it is stable to realize height speed control system, continuity triggers, the lift of constant force formula and automatically reset function.

The utility model takes following technical scheme: break-in constant force velocity limiter, comprise base and to be vertically fixed on base and the first side plate paralleled, the second side plate, first side plate and the second side sheet room assemble sheave shaft, sheave shaft normal-running fit rope sheave, and rope sheave walks around steel rope; Rope sheave is provided with centrifugal connecting rod enlarger, centrifugal connecting rod enlarger and a break-in enlarger hinged, be assemblied in sheave shaft break-in enlarger rotary type; Break-in enlarger interlock one adjusting mechanism, adjusting mechanism can move axially along sheave shaft, contacts the upper end of a trigger mechanism under two lugs of adjusting mechanism, and the hinged clamping device in lower end of trigger mechanism, can clamp rope sheave or steel rope after clamping device action.

Preferably, centrifugal connecting rod enlarger comprises symmetrically arranged two groups of structures, often organize structure to comprise: centrifugal-block connecting rod, adjustment screw, centrifugal-block, connecting rod, be installed on rope sheave the middle part rotary type of centrifugal-block connecting rod, one end of centrifugal-block connecting rod is articulated with centrifugal-block, the other end of centrifugal-block connecting rod is articulated with connecting rod, and the other end of connecting rod is articulated with described break-in enlarger.

Preferably, break-in enlarger comprises steel ball, steel ball rack, connecting rod, V shaped wheel, and many steel balls are along the circumferential direction installed on steel ball rack equably, is assemblied in sheave shaft steel ball rack rotary type, two symmetrical places of steel ball rack respectively with described rod hinge connection; Be assemblied in sheave shaft also can along sheave shaft axial translation V shaped wheel rotary type; V shaped wheel one side end face forms the V-type groove corresponding with steel ball, and the part that steel ball is in steel ball rack side is sunk into the V-type groove of V shaped wheel and contacts.

Preferably, adjusting mechanism comprises adjustment spring perch, triggering dish, adjustment spring seat bearing, adjusting nut, adjustment spring, adjustment spring perch is fixed on the second side plate and by adjustment spring seat bearing and sheave shaft normal-running fit, adjusting nut is threadedly attached to adjustment spring perch; Adjustment spring overcoat in sheave shaft, two ends peak at adjusting nut, triggering dish respectively, triggering dish be fixed on steel ball rack lateral surface and with sheave shaft normal-running fit, the two opposite sides of triggering dish are respectively provided with the lug described in.

Preferably, trigger mechanism comprises electrical equipment triggering part, electrical equipment triggering part comprises electrical equipment touch panel, electric switch adapter plate, electric switch, triggering dish is installed electrical equipment touch panel, second side plate is installed electric switch adapter plate, electric switch adapter plate is provided with electric switch, electric switch and the suitable and action of electrical equipment touch panel, when reaching electrical equipment responsiveness, the movement of being coiled by triggering is driven the movement of electrical equipment touch panel and triggers electric switch.

Preferably, triggering dish is fixedly connected with a hand lever.

Preferably, trigger mechanism comprises mechanical triggering part, machinery triggering part comprises triggering spring, locating part, pilot bar, guide frame, toggle, two lug lower surfaces of triggering dish respectively contact with the confined planes of locating part homonymy upper end, and locating part is fixedly connected with pilot bar, and pilot bar overcoat triggers spring, guide frame is fixed on the second side plate, pilot bar is vertically movably through the holes up and down of guide frame, and the lower end of locating part and toggle are hinged, toggle and described clamping device hinged; Trigger under middle part that the two ends up and down of spring peak at locating part respectively, the upper surface of guide frame.

Preferably, clamping device comprises two groups of symmetrical structures, often organize structure and comprise stops, stops backing plate, stops bracing strut, stops axle, stops spring, stops backing plate is fixedly installed in the upper surface of base, outer end is fixedly connected with stops bracing strut, stops bracing strut is provided with stops axle, the other end of stops axle stretches into stops slidably, and stops is put on stops backing plate slidably; Stops outer shaft sleeve stops spring, the nut of the adjustment spring force that spins in stops axle outer end, the inside and outside two ends of stops spring peak at stops, nut respectively; Stops and described toggle are rotationally connected; When triggering when exceeding the speed limit, under stops action of the spring, push stops to rope sheave until touch with the lower edge of rope sheave and lock rope sheave.

Preferably, clamping device comprises two groups of symmetrical structures, often organize structure and comprise swivel pin, long arm-tie, short arm-tie, curved arm-tie, brake plate, connecting panel, clamp bracket, the clamping axis of guide, clamp springs, the dual-side of clamp bracket outwards turns down 90 degree and on firm banking, the top of clamp bracket parallels with base, and steel rope is movably through the top of clamp bracket; Two brake plates are in clamp bracket also just to the steel rope mediated; The back side of brake plate is installed on connecting panel, and the back side of connecting panel is fixedly connected with two clamping axis of guides paralleled, and clamping axis of guide sliding type is matched with the homonymy side of clamp bracket; Each clamping axis of guide overcoat one clamp springs, the two ends of clamp springs peak at the side inside wall of the connecting panel back side, clamp bracket respectively; Be in a connecting panel both sides hinged short arm-tie respectively outwardly, be in a connecting panel both sides hinged long fishplate bar, curved arm-tie respectively inwardly, long arm-tie, curved arm-tie are hinged with the short arm-tie of homonymy respectively, and the other end of long arm-tie, curved arm-tie is articulated with the lower end of described locating part by swivel pin.

Preferably, if a Bringing-back mechanism, comprise reset lever, reset fulcrum, lock screw, locating part is fixedly installed a reduction point, and this reduction point is snug fit at the vertical guide groove of the second side plate, and reduction point protrudes from outside vertical guide groove; The upper end of reset lever is curved hook-shaped, and directly over the vertical guide groove being in the second side plate, lower Founder is to the salient of reduction point; Reset lever is connected on the outer wall of little side plate by reset fulcrum, and reset lever and the second side plate is fixed in another position by lock screw.

The utility model solves existing velocity limiter Problems existing by turning to constant force velocity limiter, and its advantage is that high low speed triggering response time is fast, centnifugal force amplification effect is obvious, overspeed detection controls stable, can produce relative constancy and lift power.Its amplified by centnifugal force after with turn to enlarger to superpose to solve low speed difficulty problem of implementation, by the continuous trigger of longitudinal travel, solve the problem that response time is long, adopt additional clamping device or rub between steel rope and stable rope sheave and solve the problem that relative constancy lifts power.To stablize from velocity measuring, response time, control and the performance of velocity limiter is improved in constant lift power aspect, solve the inaccessiable effect of current velocity limiter preferably, the utility model mechanism have structure simple, be quick on the draw, hypervelocity is stablized controlled, easy for installation, constant force lift and is reduced the advantages such as safety device system cost under high low velocity.

Accompanying drawing explanation

Fig. 1 is the integral outer constructional drawing of the utility model embodiment 1.

Fig. 2 is the cut-away view of the utility model embodiment 1.

Fig. 3 is the trigger state figure of the utility model embodiment 1.

Fig. 4 is the constructional drawing of the utility model embodiment 2 (clipping break-in constant force velocity limiter).

In figure: 1. base, 2. steel rope, 3. anti-springboard, 4. large side plate, 5. rope sheave, 6. electric switch, 7. electric switch adapter plate, 8. little side plate, 9. adjust spring perch, 10. reset lever, 11. reset fulcrums, 12. lock screw, 13. stops springs, 14. stops, 15. centrifugal-block connecting rods, 16. adjustment screws, 17. centrifugal-blocks, 18. backing plates, 19. steel balls, 20. steel ball rack, 21. connecting rods, 22.V type is taken turns, 23. hand levers, 24. electrical equipment touch panels, 25. triggering dishes, 26. adjustment spring seat bearings, 27. adjusting nuts, 28. sheave shafts, 29. adjustment springs, 30. trigger spring, 31. locating parts, 32. pilot bars, 33. guide frames, 34. toggles, 35. stops backing plates, 36. stops bracing struts, 37. stops axles.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model preferred embodiment is elaborated.

Embodiment 1

The present embodiment is cable pulley type break-in constant force velocity limiter, and see Fig. 1-3, it comprises: bracket institution, centrifugal connecting rod enlarger, break-in enlarger, adjusting mechanism, trigger mechanism, rope sheave mechanism, clamping device, Bringing-back mechanism.

Bracket institution comprises base 1, anti-springboard 3, large side plate 4, little side plate 8 etc., forms the support with support function.The bottom of large side plate 4, little side plate 8 is folded over 90 degree, and this folding part is affixed on base 1 upper surface, and is bolted, thus makes large side plate 4 form framed structure with vertical being fixedly installed on base 1 of little side plate 8, and size side plate parallels and leaves spacing.An anti-springboard 3 is respectively installed in the both sides of size side plate, and anti-springboard 3 is in spill, and large side plate 4, little side plate 3 are fixed on respectively by bolt in the two ends of anti-springboard 3, depart from grooving to prevent steel rope 2.

Rope sheave mechanism comprises steel rope 2, rope sheave 5, sheave shaft 28 etc., and the two ends of sheave shaft 28 are installed on large side plate 4, little side plate 8 respectively by a bearing (vertically), and rope sheave 5 is installed on sheave shaft 28 by bearing, and sheave shaft 28 is between biside plate.The rope sheave groove that steel rope 2 walks around rope sheave 5 can slide, and after steel rope 2 walks around rope sheave 5, both sides are to downward-extension, movably through base 1.Rope sheave rooved face is obtained by laser treatment comparatively stablizes friction coefficient.During rope sheave groove employing clamping device, steel rope and rope sheave locate state free to rotate all the time, produce lift power by clamping device.

Centrifugal connecting rod enlarger comprises two groups of symmetrical structures, often organizes structure and comprises: centrifugal-block connecting rod 15, adjustment screw 16, centrifugal-block 17, connecting rod 21 etc., the middle part of centrifugal-block connecting rod 15 is installed on rope sheave 5, and it can rotate around the fulcrum connecting rope sheave.One end of centrifugal-block connecting rod 15 is articulated with on centrifugal-block 17, and centrifugal-block 17 spins adjustment screw 16; The other end of centrifugal-block connecting rod 15 is articulated with on connecting rod 21, and the other end of connecting rod 21 is articulated with in steel ball rack 20.Produce centnifugal force to be imposed in steel ball rack 20 by the amplification of centrifugal-block connecting rod 15 and connecting rod 21 when centrifugal-block 17 exceeds the speed limit, steel ball rack 20 is rotated, realizes centnifugal force one-level amplification.

Break-in enlarger comprises backing plate 18, steel ball 19, steel ball rack 20, connecting rod 21, V shaped wheel 22, many steel balls 19 are along the circumferential direction installed on equably in steel ball rack 20 and form steel ball rotary table, be assemblied in sheave shaft 28 steel ball rack 20 rotary type, two symmetrical places of steel ball rack 20 respectively by axle and a connecting rod 21 hinged.Be assemblied in sheave shaft 28, V shaped wheel 22 can along the axial translation of sheave shaft 28 V shaped wheel 22 rotary type.V shaped wheel 22 forms multiple V-type groove towards steel ball 19 1 side end face, and the number of V-type groove is corresponding with steel ball 19, and the part that steel ball 19 is in steel ball rack 20 side is sunk into the V-type groove of V shaped wheel 22 and contacts.The sheave shaft being in steel ball rack 20 opposite side is provided with backing plate 18, and backing plate 18 contacts with the opposite side of steel ball 19.When connecting rod 21 drives steel ball rack 20 to rotate, by the V-type groove secondary of V shaped wheel 22 centnifugal force to be amplified and by rotations conversion axial motion.In addition, by adjusting the V-type angle of the v-groove adjustable response time of V shaped wheel.When reaching hypervelocity condition, being rotated the centrifugal action transformed by centrifugal-block and in axial direction moving to outer promotion V shaped wheel after the V-type groove of V shaped wheel amplifies in steel ball, thus the converts displacement of rotation is become longitudinal travel.

Adjusting mechanism comprises adjustment spring perch 9, triggering dish 25, adjustment spring seat bearing 26, adjusting nut 27, adjustment spring 29, adjustment spring perch 9 is fixed on the lateral surface of little side plate 8, by adjustment spring seat bearing 26 and sheave shaft 28 normal-running fit, adjusting nut 27 is threadedly attached on adjustment spring perch 9, for adjusting pre-pressure of the spring.Adjustment spring 29 is coated at sheave shaft 28, and its one end peaks at adjusting nut 27, and the other end peaks at triggering dish 25, and triggering dish 25 is coated at sheave shaft 28, and triggering dish 25 is fixed on the lateral surface of steel ball rack 20.The two opposite sides of triggering dish 25 respectively have one and trigger lug 25-1.Compressing adjustment spring 29 by adjusting nut 27, by regulating adjusting nut to make spring produce axially different thrust to triggering dish, reaching the centnifugal force that adjustment is different, realize the adjustment of hypervelocity speed.

Trigger mechanism is triggered bar with to trigger lock fixed by Compress Spring, and when frizzen locking is released, Compress Spring is broken dead point locking and realized triggering.Trigger mechanism comprises two parts, and one is that electrical equipment triggers, and two is that mechanism triggers.Trigger mechanism comprises triggering dish 25, electrical equipment touch panel 24, triggers spring 30, locating part 31, pilot bar 32, guide frame 33, toggle 34, hand lever 23 etc., triggering dish 25 is installed on V shaped wheel 22 by bearing, triggering dish 25 is provided with electrical equipment touch panel 24, little side plate 8 is provided with electric switch adapter plate 7, electric switch adapter plate 7 is provided with electric switch 6, the electric switch 6 suitable and action with electrical equipment touch panel 24, when reaching electrical equipment responsiveness, the movement of being coiled by triggering is driven the movement of electrical equipment touch panel 24 and triggers electric switch 6.Two of triggering dish 25 triggers lug lower surface and respectively contacts with the confined planes of locating part 31 homonymy upper end, locating part 31 is fixedly connected with pilot bar 32, on pilot bar 32, cover has triggering spring 30, guide frame 33 is fixed on the inner wall lower of little side plate 8, pilot bar 32 is vertical movably through the holes up and down of guide frame 33, thus it can move up and down on guide frame 33, lower end and the toggle 34 of locating part 31 are hinged.Trigger under middle part that the two ends up and down of spring 30 peak at locating part 31 respectively, the upper surface of guide frame 33.When in a locked condition, two confined planes of locating part 31 upper end are by the motion of locking position locating part 31, and to keep state of equilibrium, trigger spring 30 and compressed, toggle 34 is in horizontality and forms dead point locking clamping device.Hand lever 23 is connected with triggering dish 25, for the action of manual triggers velocity limiter.When occurring when exceeding the speed limit, steel ball rack drives steel ball to rotate, steel ball promotes the V-type groove of V shaped wheel, and V shaped wheel is outside translation under the top pressure effect of steel ball, drives the also outwards translation of triggering dish, until two lugs of triggering dish lose contacting of locating part, after locating part loses the pressure on top surface of top, upward movement under the force of a spring, locating part loses the support to clamping device, thus triggering clamping device, produce the lift power of relative constancy.

When normal operation, the centrifugal action that after the centnifugal force that centrifugal-block produces is amplified by connecting rod, superposition break-in enlarger produces keeps balance in adjustment spring, when occurring when exceeding the speed limit, the centnifugal force that after amplifying, centnifugal force superposition secondary amplifies makes spring force lack of equilibrium, and triggering dish to be moved triggering clamping device at axle.

Trigger mechanism also realizes triggering by modes such as gas, liquid and magnetic.

Bringing-back mechanism comprises reset lever 10, reset fulcrum 11, lock screw 12, and locating part 31 fixes a reduction point 31-1, and this reduction point 31-1 is snug fit at the vertical guide groove 8-1 of little side plate 8, and reduction point 31-1 protrudes from outside vertical guide groove 8-1.The upper end of reset lever 10 is curved hook-shaped, and it is in directly over vertical guide groove 8-1, its lower upright salient to reduction point 31-1.Reset lever 10 is connected on the outer wall of little side plate 8 rotationally by reset fulcrum 11, and reset lever 10 and little side plate 8 is fixed in another position by lock screw 12.When needs reset operation, back out lock screw 12, firmly stir reset lever 10 downwards, make it press the salient of reduction point 31-1 in top downwards, thus drive whole locating part 31 to move downward, realize clamping device and reset.

Bringing-back mechanism also can realize automatically reseting by motor, electromagnetic mechanism etc.

Clamping device comprises two groups of symmetrical structures, often organize structure and comprise stops 14, stops backing plate 35, stops bracing strut 36, stops axle 37, stops spring 13, stops backing plate 35 is fixedly installed in the upper surface of base 1, its outer end is fixedly connected with stops bracing strut 36, stops bracing strut 36 is provided with stops axle 37, the other end of stops axle 37 stretch into stops 14 and and bearing fit between stops 14, stops 14 is put on stops backing plate 35 slidably.Stops axle 37 overcoat stops spring 13, the nut of the adjustable that spins in outer end spring force, the inside and outside two ends of stops spring 13 peak at stops 14, nut respectively.Stops 14 and toggle 34 are rotatably connected.When in running order, toggle 34 is in horizontality, and stops spring 13 by compression, is in horizontality by two, left and right toggle 34 and forms deadlock.When triggering when exceeding the speed limit, toggle 34 horizontal equilibrium is broken, under stops spring 13 application force, stops 14 is pushed to rope sheave 5 (until touching with the lower edge of rope sheave 5), under self-locking action, lock the rotation of rope sheave 5, thus by producing relatively stable lift power between rope sheave and steel wire.Stops 14 contacts with rope sheave 5 and can lozenges, arc surface or reticulate patterned surface.Above-mentioned prevention rope sheave rotation also can be set up the mechanisms such as ratchet, cam, connecting rod and be realized, and rope sheave mating surfaces adopts laser transformation technology to realize metastable friction.

Clamping device can make rope sheave and steel rope produce by stops clamping device to rub, and also can be realized by independently clamping device, independently clamped wire rope mechanism can be one side, two-sided clamping device or wedge shape clamping device etc.

When occurring when exceeding the speed limit, the centnifugal force that centrifugal-block 17 produces is by acting on steel ball rack 20 after the amplification of centrifugal connecting rod 15 and connecting rod 21, steel ball rack 20 is rotated, rotated by steel ball 19 and promote V shaped wheel axial motion, be arranged on triggering dish 25 on V shaped wheel also synchronously to move axially, realizing rotating break-in is axial motion.When speed reaches electric switch 6 responsiveness, the electrical equipment touch panel 24 be connected with triggering dish 25 triggers by the fixing electric switch 6 of adapter plate 7; When reaching mechanical action speed, trigger locating part 31 by triggering dish 25, under the effect triggering spring 30, locating part 31 upwards lifts, destroy the balance of toggle 34, make stops brake the rope sheave of rotation or trigger clamping device by the application force of stops spring 13, thus obtain lift power.

Embodiment 2

The present embodiment is clipping break-in constant force velocity limiter, and the clamping device of the present embodiment is different from embodiment 1.See Fig. 4, clamping device has two groups, is respectively used to the steel rope clamping both sides.Single group clamping device comprises swivel pin 07-7, long arm-tie 07-9, short arm-tie 07-8, curved arm-tie 07-6, brake plate 07-5, connecting panel 07-4, clamp bracket 07-1, clamping axis of guide 07-2, clamp springs 07-3 etc., the dual-side of clamp bracket 07-1 outwards turns down 90 degree and on firm banking 1, the top of clamp bracket 07-1 parallels with base 1, steel rope is movably through this top, and the dual-side of clamp bracket is perpendicular to base 1.In steel rope both sides, opposite position is provided with brake plate 07-5, and two brake plate 07-5 are just to the steel rope mediated.The back side of brake plate 07-5 is installed on connecting panel 07-4.The back side of connecting panel 07-4 is fixedly connected with two clamping axis of guide 07-2 paralleled, and clamping axis of guide 07-2 sliding type is matched with the side of clamp bracket 07-1.Each clamping axis of guide 07-2 overcoat one clamp springs 07-3, the two ends of clamp springs 07-3 peak at the side inside wall of the connecting panel 07-4 back side, clamp bracket 07-1 respectively.Be in a connecting panel 07-4 both sides hinged short arm-tie 07-8 respectively outwardly, be in a connecting panel 07-4 both sides hinged long fishplate bar 07-9, curved arm-tie 07-6 respectively inwardly, long arm-tie 07-9, curved arm-tie 07-6 are hinged with the short arm-tie 07-8 of homonymy respectively, and the other end of long arm-tie 07-9, curved arm-tie 07-6 is articulated with the lower end of locating part 31 by swivel pin 07-7.Time in working order, long arm-tie 07-9, short arm-tie 07-8, curved arm-tie 07-6 are in level and form dead point locking, by the locating part 31 hinged and fixing maintenance horizontal lock of swivel pin 07-7 with clamping trigger mechanism.When hypervelocity occurring and triggering, the effect that dead point is equilibrated at clamping trigger mechanism spring force is broken, and locating part 31 upward movement, under the effect of clamp springs 07-3, promotes connecting panel 07-4, makes brake plate 07-5 clamped wire rope produce lift power.

Above-mentioned clamping device also can realize clamping by the mode such as voussoir, safety tongs.

When occurring when exceeding the speed limit, the centnifugal force that centrifugal-block 17 produces acts on steel ball rack 20 after being amplified by centrifugal connecting rod 15 and connecting rod 21, steel ball rack 20 is rotated, rotated by steel ball 19 and promote V shaped wheel axial motion, be arranged on triggering dish 25 on V shaped wheel also synchronously to move axially, when speed reaches electric switch 6 responsiveness, the electrical equipment touch panel 24 be connected with triggering dish 25 triggers by the fixing electric switch 6 of adapter plate 7, when reaching mechanical action speed, locating part 31 is triggered by triggering dish 25, under the effect triggering spring 30, locating part 31 upwards lifts, destroy the balance of toggle 34, stops is made to brake the rope sheave of rotation or trigger clamping device by the application force of stops spring 13, thus obtain lift power.

During reset, realize resetting by artificial or mechanism, electrical equipment mode.

Other content of the present embodiment can reference example 1.

The utility model break-in constant force velocity limiter amplifies superposition by centnifugal force and solves low speed controlled stability problem, the adjustment easy to adjust of its break-in enlarger, realize continuous trigger and improve response time, rope sheave friction or clamping device is adopted to solve constant lift power, thus speed limiter system height low speed can be accurately measured, trigger stablize controlled, response time is fast, vibration effect is little, debugging is convenient, carry tensions constant, improve the safety that velocity limiter triggers rear interlinked mechanism and brake equipment, reduce the cost of interlinked mechanism and safety device.

Claims (10)

1. break-in constant force velocity limiter, it is characterized in that comprising base and to be vertically fixed on base and the first side plate paralleled, the second side plate, the first side plate and the second side sheet room assemble sheave shaft, sheave shaft normal-running fit rope sheave, and rope sheave walks around steel rope; Rope sheave is provided with centrifugal connecting rod enlarger, centrifugal connecting rod enlarger and a break-in enlarger hinged, be assemblied in sheave shaft break-in enlarger rotary type; Break-in enlarger interlock one adjusting mechanism, adjusting mechanism can move axially along sheave shaft, contacts the upper end of a trigger mechanism under two lugs of adjusting mechanism, and the hinged clamping device in lower end of trigger mechanism, can clamp rope sheave or steel rope after clamping device action.

2. break-in constant force velocity limiter as claimed in claim 1, it is characterized in that: centrifugal connecting rod enlarger comprises symmetrically arranged two groups of structures, often organize structure to comprise: centrifugal-block connecting rod, adjustment screw, centrifugal-block, connecting rod, be installed on rope sheave the middle part rotary type of centrifugal-block connecting rod, one end of centrifugal-block connecting rod is articulated with centrifugal-block, the other end of centrifugal-block connecting rod is articulated with connecting rod, and the other end of connecting rod is articulated with described break-in enlarger.

3. break-in constant force velocity limiter as claimed in claim 2, it is characterized in that: break-in enlarger comprises steel ball, steel ball rack, connecting rod, V shaped wheel, many steel balls are along the circumferential direction installed on steel ball rack equably, be assemblied in sheave shaft steel ball rack rotary type, two symmetrical places of steel ball rack respectively with described rod hinge connection; Be assemblied in sheave shaft also can along sheave shaft axial translation V shaped wheel rotary type; V shaped wheel one side end face forms the V-type groove corresponding with steel ball, and the part that steel ball is in steel ball rack side is sunk into the V-type groove of V shaped wheel and contacts.

4. break-in constant force velocity limiter as claimed in claim 3, it is characterized in that: adjusting mechanism comprises adjustment spring perch, triggering dish, adjustment spring seat bearing, adjusting nut, adjustment spring, adjustment spring perch is fixed on the second side plate and by adjustment spring seat bearing and sheave shaft normal-running fit, adjusting nut is threadedly attached to adjustment spring perch; Adjustment spring overcoat in sheave shaft, two ends peak at adjusting nut, triggering dish respectively, triggering dish be fixed on steel ball rack lateral surface and with sheave shaft normal-running fit, the two opposite sides of triggering dish are respectively provided with the lug described in.

5. break-in constant force velocity limiter as claimed in claim 4, it is characterized in that: trigger mechanism comprises electrical equipment triggering part, electrical equipment triggering part comprises electrical equipment touch panel, electric switch adapter plate, electric switch, triggering dish is installed electrical equipment touch panel, second side plate is installed electric switch adapter plate, electric switch adapter plate is provided with electric switch, electric switch and the suitable and action of electrical equipment touch panel, when reaching electrical equipment responsiveness, the movement of being coiled by triggering is driven the movement of electrical equipment touch panel and triggers electric switch.

6. break-in constant force velocity limiter as claimed in claim 4, is characterized in that: triggering dish is fixedly connected with a hand lever.

7. the break-in constant force velocity limiter as described in any one of claim 4-6, it is characterized in that: trigger mechanism comprises mechanical triggering part, machinery triggering part comprises triggering spring, locating part, pilot bar, guide frame, toggle, two lug lower surfaces of triggering dish respectively contact with the confined planes of locating part homonymy upper end, locating part is fixedly connected with pilot bar, pilot bar overcoat triggers spring, guide frame is fixed on the second side plate, pilot bar is vertically movably through the holes up and down of guide frame, the lower end of locating part and toggle are hinged, toggle and described clamping device hinged; Trigger under middle part that the two ends up and down of spring peak at locating part respectively, the upper surface of guide frame.

8. break-in constant force velocity limiter as claimed in claim 7, it is characterized in that: clamping device comprises two groups of symmetrical structures, often organize structure and comprise stops, stops backing plate, stops bracing strut, stops axle, stops spring, stops backing plate is fixedly installed in the upper surface of base, outer end is fixedly connected with stops bracing strut, stops bracing strut is provided with stops axle, the other end of stops axle stretches into stops slidably, and stops is put on stops backing plate slidably; Stops outer shaft sleeve stops spring, the nut of the adjustment spring force that spins in stops axle outer end, the inside and outside two ends of stops spring peak at stops, nut respectively; Stops and described toggle are rotationally connected; When triggering when exceeding the speed limit, under stops action of the spring, push stops to rope sheave until touch with the lower edge of rope sheave and lock rope sheave.

9. break-in constant force velocity limiter as claimed in claim 7, it is characterized in that: clamping device comprises two groups of symmetrical structures, often organize structure and comprise swivel pin, long arm-tie, short arm-tie, curved arm-tie, brake plate, connecting panel, clamp bracket, the clamping axis of guide, clamp springs, the dual-side of clamp bracket outwards turns down 90 degree and on firm banking, the top of clamp bracket parallels with base, and steel rope is movably through the top of clamp bracket; Two brake plates are in clamp bracket also just to the steel rope mediated; The back side of brake plate is installed on connecting panel, and the back side of connecting panel is fixedly connected with two clamping axis of guides paralleled, and clamping axis of guide sliding type is matched with the homonymy side of clamp bracket; Each clamping axis of guide overcoat one clamp springs, the two ends of clamp springs peak at the side inside wall of the connecting panel back side, clamp bracket respectively; Be in a connecting panel both sides hinged short arm-tie respectively outwardly, be in a connecting panel both sides hinged long fishplate bar, curved arm-tie respectively inwardly, long arm-tie, curved arm-tie are hinged with the short arm-tie of homonymy respectively, and the other end of long arm-tie, curved arm-tie is articulated with the lower end of described locating part by swivel pin.

10. break-in constant force velocity limiter as claimed in claim 7, it is characterized in that: establish a Bringing-back mechanism, comprise reset lever, reset fulcrum, lock screw, locating part is fixedly installed a reduction point, this reduction point is snug fit at the vertical guide groove of the second side plate, and reduction point protrudes from outside vertical guide groove; The upper end of reset lever is curved hook-shaped, and directly over the vertical guide groove being in the second side plate, lower Founder is to the salient of reduction point; Reset lever is connected on the outer wall of little side plate by reset fulcrum, and reset lever and the second side plate is fixed in another position by lock screw.