CN201395453Y - Novel speed limiter without machine room - Google Patents
Novel speed limiter without machine room Download PDFInfo
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- CN201395453Y CN201395453Y CN200920067021XU CN200920067021U CN201395453Y CN 201395453 Y CN201395453 Y CN 201395453Y CN 200920067021X U CN200920067021X U CN 200920067021XU CN 200920067021 U CN200920067021 U CN 200920067021U CN 201395453 Y CN201395453 Y CN 201395453Y
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- centrifugal
- ratchet
- film
- centrifugal film
- pivot pin
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Abstract
The utility model relates to a novel speed limiter without a machine room, which comprises a frame, and a limiting switch, a brake mechanism, a steel cable pulley and a ratchet wheel which are arranged on the frame, a centrifugal mechanism arranged on the steel cable pulley, a rotatable detent, a stop front fork clamped with and resting against the tail end of the centrifugal mechanism, a reset pin roll and a spring. The ratchet wheel is in transmission connection with the brake mechanism; the centrifugal mechanism comprises an upper centrifugal plate, a lower centrifugal plate, two centrifugal hammer shafts, a connecting rod and a pressure spring; the centrifugal hammer shafts are respectively arranged at the front parts of the upper centrifugal plate and the lower centrifugal plate; thestop front fork is fixed on the steel cable pulley through a torsional spring; a transmission piece contacting with the upper centrifugal place is arranged on the stop front fork; an arc hole is arranged at the back part of the upper centrifugal plate; one end of the reset pin roll threads through the arc hole and is fixed with the head of the detent; and the spring is tensioned between the resetpin roll and the steel cable pulley. The speed limiter is safe, reliable, and wide in application range.
Description
Technical field
The utility model relates to elevator governor, particularly relates to a kind of novel inorganic room velocity limiter.
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 class 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 problem to be solved in the utility model is exactly to provide a kind of safe and reliable novel inorganic room velocity limiter for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of novel inorganic room velocity limiter, comprise framework, be located at the limit switch on the framework, stop mechanism, cable wire wheel and ratchet, be located at the centrifugal mechanism on the cable wire wheel, rotating ratchet, and the retaining head that fastens mutually with the tail end of ratchet fork, described ratchet and stop mechanism are in transmission connection, described centrifugal mechanism comprises centrifugal film, following centrifugal film, two centrifugal hammer axles, connecting rod and stage clip, the described centrifugal film of going up, the front portion of following centrifugal film is equipped with a centrifugal weights, described retaining head fork is fixed on the cable wire wheel by torsion spring, this retaining head is stuck and is provided with a 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, one 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.
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 is the corrosion-resistant steel pivot pin.
Compared with prior art, the utlity model has following advantage:
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 utility model, 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 be subjected to 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 centrifugal hammer is finished and is resetted before and after the utility model exquisiteness and the utilization action, ratchet before action has just guaranteed the needed angle of action, 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, 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, meet 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 utility model;
Fig. 3 is a backsight structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As Fig. 2, shown in 3, a kind of novel inorganic room velocity limiter, comprise framework, be located at the limit switch on the framework, stop mechanism 1, cable wire wheel 2 and ratchet 3, be located at the centrifugal mechanism on the cable wire wheel 2, rotating ratchet 4, and the retaining head that fastens mutually with the tail end of ratchet 4 fork 5, described ratchet 3 is in transmission connection with stop mechanism 1, described centrifugal mechanism comprises centrifugal film 6, following centrifugal film 7, two centrifugal hammer axles 8, connecting rod 9 and stage clip 10, the described centrifugal film 6 of going up, the front portion of following centrifugal film 7 is equipped with a centrifugal weights 11, described retaining head fork 5 is fixed on the cable wire wheel 2 by torsion spring, this retaining head fork 5 is provided with a Transmission that touches mutually with last centrifugal film 6, the utility model 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, one 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 α 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 adopt and make two-way no machine room reach same good performance on 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 under action of centrifugal force, prolonging radially opening of cable wire wheel, when centrifugal weights opens to certain position, centrifugal film is pushed the retaining 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 under the effect of centrifugation systems weight reset force involution to original initial position, thereby automatically reseting of easily realizing, it is simple and reliable to need not artificial M/C.
One, innovative point of the present utility model:
The pivot pin that resets of the present utility model 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 every 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 the following every directive function of safety component performance that manually detects of 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 utility model
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 utility model:
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, calculate under the ratchet normal circumstances, the angle degree (displacement) at centrifugal hammer center and centrifugal hammer axle center is a benchmark, velocity limiter is done in the speed range of setting, descending rotation, the centrifugal hammer center is to centrifugal hammer axle center upward movement, 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 the following every directive function of safety component performance that manually detects of 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 will block the ratchet ratchet, at this moment, 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 designed distance of relative movement 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 to blocking the ratchet ratchet, at this moment, under centrifugal hammer center and the ratchet normal circumstances originally, centrifugal hammer center and centrifugal hammer axle center, formed angle degree (displacement) then are the designed distance of relative movements of pivot pin that resets.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 (5)
1. novel inorganic room velocity limiter, comprise framework, be located at the limit switch on the framework, stop mechanism, cable wire wheel and ratchet, be located at the centrifugal mechanism on the cable wire wheel, rotating ratchet, and the retaining head that fastens mutually with the tail end of ratchet fork, described ratchet and stop mechanism are in transmission connection, described centrifugal mechanism comprises centrifugal film, following centrifugal film, two centrifugal hammer axles, connecting rod and stage clip, the described centrifugal film of going up, the front portion of following centrifugal film is equipped with a centrifugal weights, described retaining head fork is fixed on the cable wire wheel by torsion spring, this retaining head is stuck and is provided with a 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, one 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.
2. a kind of novel inorganic according to claim 1 room velocity limiter is characterized in that the rotation angle (α) of described centrifugal weights is greater than the pivot angle (β) of ratchet.
3. a kind of novel inorganic according to claim 1 and 2 room velocity limiter, it is characterized in that, described stop mechanism comprises the braking pressure handle, draws a rod and brake plate, described braking pressure handle and framework articulate, 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.
4. a kind of novel inorganic according to claim 3 room velocity limiter, 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, 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.
5. a kind of novel inorganic according to claim 4 room velocity limiter is characterized in that, the described pivot pin that resets is adopted and is the corrosion-resistant steel pivot pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067021XU CN201395453Y (en) | 2009-01-15 | 2009-01-15 | Novel speed limiter without machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067021XU CN201395453Y (en) | 2009-01-15 | 2009-01-15 | Novel speed limiter without machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201395453Y true CN201395453Y (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920067021XU Expired - Lifetime CN201395453Y (en) | 2009-01-15 | 2009-01-15 | Novel speed limiter without machine room |
Country Status (1)
| Country | Link |
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| CN (1) | CN201395453Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780910B (en) * | 2009-01-15 | 2012-07-11 | 上海摩顿电气有限公司 | Machine-room-less speed limiter for elevator |
| CN106586760A (en) * | 2016-12-12 | 2017-04-26 | 快意电梯股份有限公司 | Device for preventing speed governor of machine-roomless elevator from automatically resetting |
| CN110271934A (en) * | 2018-03-15 | 2019-09-24 | 杭州沪宁电梯部件股份有限公司 | A kind of rope sheave anti-interference mechanism |
| US11365091B2 (en) | 2018-12-04 | 2022-06-21 | Otis Elevator Company | Overspeed protection switch, overspeed governor assembly and elevator system |
| US11591185B2 (en) | 2018-10-09 | 2023-02-28 | Otis Elevator Company | Remote triggering device, overspeed governor assembly and elevator system |
-
2009
- 2009-01-15 CN CN200920067021XU patent/CN201395453Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780910B (en) * | 2009-01-15 | 2012-07-11 | 上海摩顿电气有限公司 | Machine-room-less speed limiter for elevator |
| CN106586760A (en) * | 2016-12-12 | 2017-04-26 | 快意电梯股份有限公司 | Device for preventing speed governor of machine-roomless elevator from automatically resetting |
| CN106586760B (en) * | 2016-12-12 | 2019-01-25 | 快意电梯股份有限公司 | Prevent the device that elevator speed limitor without machine room automatically resets |
| CN110271934A (en) * | 2018-03-15 | 2019-09-24 | 杭州沪宁电梯部件股份有限公司 | A kind of rope sheave anti-interference mechanism |
| CN110271934B (en) * | 2018-03-15 | 2024-02-02 | 杭州沪宁电梯部件股份有限公司 | Rope sheave anti-interference mechanism |
| US11591185B2 (en) | 2018-10-09 | 2023-02-28 | Otis Elevator Company | Remote triggering device, overspeed governor assembly and elevator system |
| US11365091B2 (en) | 2018-12-04 | 2022-06-21 | Otis Elevator Company | Overspeed protection switch, overspeed governor assembly and elevator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100203 Effective date of abandoning: 20090115 |