CN101780910B - Machine-room-less speed limiter for elevator - Google Patents
Machine-room-less speed limiter for elevator Download PDFInfo
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- CN101780910B CN101780910B CN2009100454198A CN200910045419A CN101780910B CN 101780910 B CN101780910 B CN 101780910B CN 2009100454198 A CN2009100454198 A CN 2009100454198A CN 200910045419 A CN200910045419 A CN 200910045419A CN 101780910 B CN101780910 B CN 101780910B
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Abstract
The invention relates to a machine-room-less speed limiter for an elevator, which comprises a frame; a limit switch, a brake mechanism, a steel rope wheel and a ratchet which are arranged on the frame; a centrifugal mechanism and a rotatable pawl which are arranged on the steel rope wheel; an anti-back head fork which is clamped against the tail end of the pawl; and a reset shaft pin and a spring, wherein the ratchet is in transmission connection with the brake mechanism; the centrifugal mechanism comprises an upper centrifugal piece, a lower centrifugal piece, two centrifugal hammer shafts, a connecting rod and a compression spring, and centrifugal heavy hammers are arranged at the front parts of the upper centrifugal piece and the lower centrifugal piece; the anti-back head fork is fixed on the steel rope wheel through a torsion spring, a transmission part which is in contact with the upper centrifugal piece is arranged on the anti-back head fork, and a circular arc hole is formed at the back part of the upper centrifugal piece; and one end of the reset shaft pin penetrates the circular arc hole and is fixed with the head end of the pawl, and the spring is tensed between the reset shaft pin and a wheel hub of the steel rope wheel. The machine-room-less speed limiter for the elevator has the advantages of safety, reliability and a wide range of applications.
Description
Technical field
The present invention relates to elevator governor, particularly relate to a kind of machine-room-less speed limiter for elevator.
Background technology
At present, the machine-room-less speed limiter that generally uses on the elevator market has adopted mechanism as shown in Figure 1, and its principle of work is: when speed improves when being about to reach the command speed of elevator brake gradually, cable wire wheel centrifugation systems makes ratchet 4 move closer to ratchet 3; When ratchet 4 approaches to certain degree, insert ratchet 3 and band brake mechanism 1 clamping elevator steel cable rope 18 and obtain the required power that lifts, make elevator brake, and in towing machine crawl return process, ratchet 4 automatically resets, velocity limiter still can restPose.But this mechanism can produce very big noise, and make ratchet bear very big momentum owing to be that ratchet moves closer to ratchet when speed promotes before braking, cause ratchet that the possibility of destruction is arranged.Therefore, though this type velocity limiter can only be used in the elevator below 90 meters/minute, but still exist the resetting system very big hidden danger that lost efficacy.
Summary of the invention
Technical matters to be solved by this invention is exactly for the defective that overcomes above-mentioned prior art existence a kind of safe and reliable machine-room-less speed limiter for elevator to be provided.
The object of the invention can be realized through following technical scheme: a kind of machine-room-less speed limiter for elevator, comprise framework, and be located at limit switch, stop mechanism, cable wire wheel and ratchet on the framework; Be located at centrifugal mechanism, rotating ratchet on the cable wire wheel; And the stopping head that fastens mutually with the tail end of ratchet fork, described ratchet and stop mechanism are in transmission connection, and described centrifugal mechanism comprises centrifugal film, time centrifugal film, two centrifugal hammer axles, connecting rod and stage clips; Described front portion of going up centrifugal film, following centrifugal film is equipped with a centrifugal weights; Described stopping head fork is fixed on the cable wire wheel through torsion spring, and this stopping head is stuck and is provided with the Transmission that touches mutually with last centrifugal film, it is characterized in that; Also comprise the pivot pin that resets, spring; Described rear portion of going up centrifugal film is provided with a circular hole, and an end of the described pivot pin that resets passes circular hole and fixes with the head end of ratchet, and described tensioned is between the wheel hub of pivot pin and the cable wire wheel that resets.
The rotation angle of described centrifugal weights is greater than the pivot angle β of ratchet.
Described stop mechanism comprises the braking pressure handle, draws a rod and brake plate, and described braking pressure handle and framework articulate, and a described rod that draws is fixed on the braking pressure handle, and is connected with ratchet drive, and described brake plate is fixed on the braking pressure handle.
Described two centrifugal hammer axles lay respectively at the postmedian of centrifugal film, following centrifugal film; The two ends of described connecting rod are articulated in respectively on centrifugal film and the following centrifugal film; One end of described stage clip is fixed in the rear end of centrifugal film, and the other end is fixed on the wheel hub holder of cable wire wheel.
The described pivot pin that resets adopts the corrosion-resistant steel pivot pin.
Compared with prior art, the present invention has the following advantages:
One, range of use is wide: speed range can be 20 meters/minute therefore promoted machine-room-less speed limiter greatly as for 120 meters/minute can matching used scope;
Two, safe and reliable: the braking ratchet can be in action moment insertion brake ratchet in the invention; Therefore eliminated the serious noise that action cause braking friction is produced basically; And make the inner ratchet sheet of whole machine body can not receive great destruction, and thoroughly solved the possibility that entire mechanism was lost efficacy because of braking friction ratchet sheet;
Three, velocity amplitude is stable: owing to be can feed back the speed of elevator operation the very first time and keep synchronous as much as possible at snap action that exceeds the speed limit so body fully before action;
Four, maintenance is convenient: this machine can guarantee that when the elevator crawl resets mechanism makes brake system return to before the action automatically in the time that reaches weak point;
Five, can be applied to the two-way machine-room-less speed limiter innovated simultaneously;
Six, degree of the separating difference of the present invention's exquisiteness and utilization action front and back centrifugal hammer is accomplished and is resetted, and the ratchet before action has just guaranteed to move needed angle, therefore; This mechanism can simple and convenient be applied on the two-way no machine room speed device product, and this two-way no machine room speed device belongs to domestic initiation, at present; What domestic two-way no machine room speed device used all is electric triggering, and cost is too high, and can not realize low-speed detection elevator safety component function; And the machinery that the two-way no machine room speed device of original creation uses triggers; Cost is low, can realize low-speed detection elevator safety component function, meets the requirement of " GB7588-2003 " GB fully.
Description of drawings
Fig. 1 is the structural representation of existing machine-room-less speed limiter;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is a backsight structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Like Fig. 2, shown in 3, a kind of machine-room-less speed limiter for elevator comprises framework; Be located at limit switch, stop mechanism 1, cable wire wheel 2 and ratchet 3 on the framework; Be located at centrifugal mechanism, rotating ratchet 4 on the cable wire wheel 2, and pitch 5 with the stopping head that the tail end of ratchet 4 fastens mutually, described ratchet 3 is in transmission connection with stop mechanism 1; Described centrifugal mechanism comprises centrifugal film 6, down centrifugal film 7, two centrifugal hammer axles 8, connecting rod 9 and stage clips 10; Describedly go up centrifugal film 6, the front portion of centrifugal film 7 is equipped with a centrifugal weights 11 down, described stopping head fork 5 is fixed on the cable wire wheel 2 through torsion spring, this stopping head fork 5 is provided with the Transmission that touches mutually with last centrifugal film 6; The present invention also comprises the pivot pin 12 that resets, spring 13; Described rear portion of going up centrifugal film 6 is provided with a circular hole 14, and an end of the described pivot pin 12 that resets passes circular hole 14 and fixes with the head end of ratchet 4, and described spring 13 is tensioned between the wheel hub of reset pivot pin 12 and cable wire wheel 2.
The rotation angle of described centrifugal weights 11 at this moment, makes ratchet realize automatically reseting under the effect of reset bearing pin and centrifugal heavy system reset power greater than the pivot angle β of ratchet 4; This mechanism also can be employed in and make two-way no machine room reach same good performance on the two-way no machine room simultaneously; Described stop mechanism 1 comprises braking pressure handle 15, draws a rod 16 and brake plate 17; Described braking pressure handle 15 articulates with framework; The described rod 16 that draws is fixed on the braking pressure handle 15, and is in transmission connection with ratchet 3, and described brake plate 17 is fixed on the braking pressure handle 15; Described two centrifugal hammer axles 8 lay respectively at the postmedian of centrifugal film 6, following centrifugal film 7; The two ends of described connecting rod 9 are articulated in respectively on centrifugal film 6 and the following centrifugal film 7; One end of described stage clip 10 is fixed in the rear end of centrifugal film 6, and the other end is fixed on the wheel hub holder of cable wire wheel 2; The described pivot pin 12 that resets adopts the corrosion-resistant steel pivot pin, and higher intensity and toughness can be provided.Centrifugation systems can the synchro control elevator device command speed, brake system can provide the braking elevator the required power that lifts 100～170Kg, and makes airframe systems that system's power of lifting is controlled in the actv. scope.
When elevator overspeed, accelerated movement; Centrifugation systems is prolonging radially opening of cable wire wheel, when centrifugal weights opens to certain position under action of centrifugal force; Centrifugal film is pushed the stopping head fork that blocks ratchet when initial aside; Trigger ratchet, thereby ratchet inserts ratchet internal trigger brake system in tension following moment of spring and lifts elevator steel cable rope 18 and make the lift car stop on cage guide simultaneously, has realized the restriction to elevator speed; When elevator examination and when the car crawl resets, ratchet is involution to original initial position under the effect of centrifugation systems weight reset force, thus light automatically reseting of realizing, and it is simple and reliable to need not artificial M/C.
One, innovative point of the present invention:
The pivot pin that resets of the present invention passes the centrifugal film circular hole; Be fastened on the purpose made detent positions; On the basis of former ratchet, velocity limiter is carried out unique innovative design and improvement; Make it have unique each item performance (as follows), under the interlock of each parts, can reach and surmount elevator GB principle of design and performance requriements.
1, realizes that elevator operates in manual safety component performance each item directive function that detects below the command speed;
Bigger brake noise when 2, realize eliminating before the transformation point of overspeed protection ratchet whereabouts;
3, realize that overspeed protection releasing back ratchet machinery automatically resets and the switch hand reset.
Two, technical essential of the present invention
1, under the ratchet normal circumstances: with the centrifugal hammer axle is that the angle at center-point and centrifugal hammer center is a basic point;
2, before the transformation point of ratchet action whereabouts: when centrifugal hammer axle center and centrifugal hammer center up-and-down movement, the angle degree (displacement) that is produced;
3, the ratchet action falls behind down: when centrifugal hammer axle center and centrifugal hammer center up-and-down movement, and the angle degree (displacement) that is produced.
Three, principle of the present invention:
Calculate the required circular hole position range of pivot pin motion that resets; The pivot pin that resets passes centrifugal film and is fastened on the purpose made detent positions; Velocity limiter is in the speed range of setting, and the angle degree (displacement) at centrifugal hammer axle center and centrifugal hammer center is done the uplink and downlink motion.
1, when speed continues to increase, when below rated speed of lift, moving:
Under action of centrifugal force; The centrifugal hammer center is that circular motion is upwards done in the center of circle with centrifugal hammer axle center, calculates under the ratchet normal circumstances, and the angle degree (displacement) at centrifugal hammer center and centrifugal hammer axle center is a benchmark; Velocity limiter is done uplink and downlink and is rotated in the speed range of setting; The centrifugal hammer center is to centrifugal hammer axle center upward movement, and centrifugal hammer axle center then moves downward to square-head screw one side, simultaneously; The pivot pin that resets is also done relative upward movement in the circular hole scope of centrifugal film, thereby realizes that elevator operates in manual safety component performance each item directive function that detects below the command speed.
2, when speed continues to increase, near before the rated speed of lift operation transformation point time:
With centrifugal hammer axle center is the center of circle, moves up as circumference around centrifugal hammer axle center with the centrifugal hammer center.In the time of before speed continues to increase near rated speed of lift operation transformation point; Ratchet falls and will block the ratchet ratchet, at this moment, and under centrifugal hammer center and the ratchet normal circumstances originally; Centrifugal hammer center and centrifugal hammer axle center; Formed angle degree (displacement) then is the distance of relative movement of the set meter of pivot pin that resets, and produces the preceding brake noise of bigger transformation point thereby thoroughly eliminated present velocity limiter product.
3, when speed continues to increase, when surpassing the rated speed of lift operation:
When elevator speed continues to increase; When surpassing the rated speed of lift operation; Ratchet falls and to block the ratchet ratchet, at this moment, and under centrifugal hammer center and the ratchet normal circumstances originally; Centrifugal hammer center and centrifugal hammer axle center, formed angle degree (displacement) then are to reset the distance of relative movement of the set meter of pivot pin.When treating that the ratchet action is removed in the crawl carriage return; The centrifugal hammer center is then to move downward from gravity; Move on square-head screw one side direction in centrifugal hammer axle center, simultaneously, driven pass centrifugal film reset pivot pin and ratchet to top offset; The displacement point of getting back under the ratchet normal circumstances originally resets ratchet, thereby realizes that the ratchet automation resets.
Claims (4)
1. a machine-room-less speed limiter for elevator comprises framework, is located at limit switch, stop mechanism, cable wire wheel and ratchet on the framework; Be located at centrifugal mechanism, rotating ratchet on the cable wire wheel; And the stopping head that fastens mutually with the tail end of ratchet fork, described ratchet and stop mechanism are in transmission connection, and described centrifugal mechanism comprises centrifugal film, time centrifugal film, two centrifugal hammer axles, connecting rod and stage clips; Described front portion of going up centrifugal film, following centrifugal film is equipped with a centrifugal weights; Described stopping head fork is fixed on the cable wire wheel through torsion spring, and this stopping head is stuck and is provided with the Transmission that touches mutually with last centrifugal film, it is characterized in that; Also comprise the pivot pin that resets, spring; Described rear portion of going up centrifugal film is provided with a circular hole, and an end of the described pivot pin that resets passes circular hole and fixes with the head end of ratchet, and described tensioned is between the wheel hub of pivot pin and the cable wire wheel that resets;
The rotation angle (α) of described centrifugal weights is greater than the pivot angle (β) of ratchet.
2. a kind of machine-room-less speed limiter for elevator according to claim 1; It is characterized in that; Described stop mechanism comprises the braking pressure handle, draws a rod and brake plate, and described braking pressure handle and framework articulate, and a described rod that draws is fixed on the braking pressure handle; And be connected with ratchet drive, described brake plate is fixed on the braking pressure handle.
3. a kind of machine-room-less speed limiter for elevator according to claim 2; It is characterized in that; Described two centrifugal hammer axles lay respectively at the postmedian of centrifugal film, following centrifugal film; The two ends of described connecting rod are articulated in respectively on centrifugal film and the following centrifugal film, and an end of described stage clip is fixed in the rear end of centrifugal film, and the other end is fixed on the wheel hub holder of cable wire wheel.
4. a kind of machine-room-less speed limiter for elevator according to claim 3 is characterized in that, the described pivot pin that resets adopts the corrosion-resistant steel pivot pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100454198A CN101780910B (en) | 2009-01-15 | 2009-01-15 | Machine-room-less speed limiter for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100454198A CN101780910B (en) | 2009-01-15 | 2009-01-15 | Machine-room-less speed limiter for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101780910A CN101780910A (en) | 2010-07-21 |
| CN101780910B true CN101780910B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100454198A Expired - Fee Related CN101780910B (en) | 2009-01-15 | 2009-01-15 | Machine-room-less speed limiter for elevator |
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| CN (1) | CN101780910B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508290A (en) * | 2013-10-31 | 2014-01-15 | 西继迅达（许昌）电梯有限公司 | Automatic one-way anti-vehicle slip speed limiter without machine room |
| CN103508289A (en) * | 2013-10-31 | 2014-01-15 | 西继迅达（许昌）电梯有限公司 | One-way speed limiter without machine room |
| CN103523628A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free speed limiter of single brake pressing-plate device |
| CN103523632A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free automatic anti-running vehicle speed limiter of single brake pressing-plate device |
| CN103523629A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less speed limiter |
| CN103508291A (en) * | 2013-10-31 | 2014-01-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional overspeed governor provided with automatic anti-slip function and used on elevator without machine room |
| CN103803371B (en) * | 2014-01-28 | 2016-08-24 | 宁波奥德普电梯部件有限公司 | The control device of the anti-accidental movement of lift car |
| CN105060058B (en) * | 2015-07-23 | 2017-07-28 | 杭州沪宁电梯部件股份有限公司 | A kind of constant force limiter of speed |
| CN107673159B (en) | 2016-08-01 | 2020-09-08 | 奥的斯电梯公司 | Speed limiter of elevator |
| CN108263922A (en) * | 2016-12-30 | 2018-07-10 | 天津豪雅科技发展有限公司 | A kind of anti-slip unidirectional limiter of speed |
| CN110271936B (en) * | 2018-03-15 | 2023-08-11 | 杭州沪宁电梯部件股份有限公司 | Remote triggering reset mechanism of speed limiter |
| CN108455403B (en) * | 2018-03-22 | 2023-12-01 | 南通中力科技有限公司 | Car follow-up elevator speed limiter |
| CN108622760B (en) * | 2018-06-07 | 2023-07-14 | 南通中力科技有限公司 | Elevator speed limiter |
| CN110963387B (en) * | 2018-09-29 | 2022-06-10 | 奥的斯电梯公司 | Overspeed protection switch, speed limiter assembly and elevator system |
| CN109592531B (en) * | 2018-11-29 | 2023-09-01 | 广州广日电梯工业有限公司 | Speed limiter device with automatic return function |
| US11598382B2 (en) | 2019-07-12 | 2023-03-07 | Pella Corporation | Adaptive centrifugal brake assemblies |
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| CN2611336Y (en) * | 2003-04-09 | 2004-04-14 | 宁波申菱电梯配件有限公司 | Improved two-way governor of elevator |
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| CN2775015Y (en) * | 2005-03-08 | 2006-04-26 | 宁波申菱电梯配件有限公司 | Electric speed limiter without machine room |
| CN201395453Y (en) * | 2009-01-15 | 2010-02-03 | 上海摩顿电气有限公司 | Novel speed limiter without machine room |
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2009
- 2009-01-15 CN CN2009100454198A patent/CN101780910B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611336Y (en) * | 2003-04-09 | 2004-04-14 | 宁波申菱电梯配件有限公司 | Improved two-way governor of elevator |
| CN2719802Y (en) * | 2004-07-22 | 2005-08-24 | 上海三菱电梯有限公司 | Two-way acting speed limiting device |
| CN2775015Y (en) * | 2005-03-08 | 2006-04-26 | 宁波申菱电梯配件有限公司 | Electric speed limiter without machine room |
| CN201395453Y (en) * | 2009-01-15 | 2010-02-03 | 上海摩顿电气有限公司 | Novel speed limiter without machine room |
Also Published As
| Publication number | Publication date |
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| CN101780910A (en) | 2010-07-21 |
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Owner name: SHANGHAI SANSI ELECTRONICS CO., LTD. Free format text: FORMER OWNER: SHANGHAI MODUN ELECTRIC CO., LTD. Effective date: 20141104 |
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