CN101239683A - Elevator and its speed limiting safety system - Google Patents
Elevator and its speed limiting safety system Download PDFInfo
- Publication number
- CN101239683A CN101239683A CNA2008100611508A CN200810061150A CN101239683A CN 101239683 A CN101239683 A CN 101239683A CN A2008100611508 A CNA2008100611508 A CN A2008100611508A CN 200810061150 A CN200810061150 A CN 200810061150A CN 101239683 A CN101239683 A CN 101239683A
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- speed limit
- elevator
- steel rope
- limit steel
- car
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Abstract
The present invention provides an elevator speed limit security system, including an overspeed governor arranged on the top of the elevator interior, a roller arranged on the top of the elevator counterweight, a speed limit wire cable connected with the elevator interior, the overspeed governor, the roller and the elevator counterweight in orders; wherein, the roller leads to the speed limit wire cable and connects to the overspeed governor and the elevator interior; the speed limit wire cable 204 drives the overspeed governor operating in linear velocity of the elevator, when the operating speed of the elevator interior exceeds presupposed threshold value, the overspeed governor is started to limit the operating speed of the elevator interior. In addition, the invention is also provides an elevator. The elevator speed limit security system reduces amount of usage of the speed limit wire cable, reduces the elevator cost.
Description
Technical field
The present invention relates to the elevator technology field, relate in particular to a kind of elevator speed limiting safety system.
Background technology
At present, the speed limiting safety system of elevator comprises velocity limiter 1, tension mechanism 5 and safety switch 8, and links to each other with car 4 by speed limit steel rope 3.Velocity limiter 1 is by the running velocity of speed limit steel rope 4 restriction cars 4, when the speed that detects car 4 when river bend speed device 1 surpasses preset threshold value, disconnects the safety return circuit (not shown) and makes car 4 out of service; When steel rope 3 disconnected, tension mechanism 5 moved downward under the effect of gravity, and shifting block 6 is stirred the drive block 7 of safety switch 8, thereby drive block 7 actions drive safety switch, send safety signal to main frame, indication main frame braking car.Wherein, velocity limiter 1 is installed in the machine room, and tension mechanism 5 is arranged in and carries out closed loop with velocity limiter 1 by speed limit steel rope 3 in the pit and be connected.The variation of length can take place owing to expanding with heat and contract with cold in speed limit steel rope 3 when temperature in four seasons changes, tension mechanism 5 is by moving up and down in good time tensioner speed limit steel rope 3, but because the change of tension mechanism 5 positions, cause the shifting block 6 and the relative position of drive block 7 to change, influenced the normal operation of safety switch.In order to make safety switch carry out normal operation, then need to set out the repair and maintenance personnel and carry out manual reset to the building site, caused unnecessary trouble to operator.
In addition, because velocity limiter is arranged in the machine room, tension mechanism is arranged in the pit, then needs very long speed limit steel rope that velocity limiter and tension mechanism are coupled together, and has increased the cost of whole elevator.
Summary of the invention
The purpose of this invention is to provide a kind of elevator and speed limiting safety system thereof,, reduced the use amount of speed limit steel rope simultaneously, reduced the cost of elevator to avoid the speed limit steel rope because of closed loop connects the reciprocal manual reset that causes.
For solving the problem that prior art exists, realize the foregoing invention purpose, the invention provides a kind of elevator speed limiting safety system, comprising:
Be arranged in the velocity limiter of lift car top, be arranged in the roller of described Elevator weight sensor top, and the speed limit steel rope that connects described lift car, velocity limiter, roller and Elevator weight sensor in turn;
Wherein, the described roller described speed limit steel rope that leads links to each other with described velocity limiter and lift car; The speed limit steel rope drives velocity limiter with the operation of car linear velocity, and when the running velocity of described lift car surpassed preset threshold value, described velocity limiter started to limit the running velocity of described car.
In addition, also comprise safety tongs that links to each other with described car and the safety tongs shift mechanism that lifts described safety tongs;
When car exceeded the speed limit, velocity limiter clamped the speed limit steel rope, imposes on power that makes progress of safety tongs shift mechanism, and the safety tongs shift mechanism lifts safety tongs with the braking car.
In addition, also comprise disconnected rope detection components and the safety switch that links to each other with described speed limit steel rope;
Described disconnected rope detection components triggers described safety switch when described speed limit steel rope disconnects, make described safety switch disconnect safety return circuit and brake electric car sedan-chair.
In addition, described disconnected rope detection components comprises:
The upper end links to each other with described speed limit steel rope, and is socketed in the double-screw bolt on the described safety tongs shift mechanism;
Be socketed in the spring that can carry out elastic telescopic on the described double-screw bolt along described double-screw bolt;
Pad is ended in first of the described spring upper end that is positioned at that is fixed on the described double-screw bolt;
What be positioned at described spring lower end ends pad with second of described double-screw bolt socket; And
Be positioned at described second that end the pad below and the described double-screw bolt by what be threaded, be used for the fastener of the described spring of pretension.
In addition, described speed limit steel rope and described counterweight carry out sliding block joint by slide assemblies;
Described slide assemblies upper end is connected with described speed limit steel rope, and slides up and down at the described counterweight in the traction lower edge of described speed limit steel rope.
In addition, described slide assemblies comprises:
The sliding shoe that links to each other with described speed limit steel rope; And
Be installed on the described counterweight, the slide rail of sliding rail is provided for described sliding shoe.
Correspondingly, the present invention also provides a kind of elevator, comprises lift car and counterweight, in addition, also comprises:
Be arranged in the velocity limiter of lift car top, be arranged in the roller of described Elevator weight sensor top, and the speed limit steel rope that connects described lift car, velocity limiter, roller and Elevator weight sensor in turn;
Wherein, the described roller described speed limit steel rope that leads links to each other with described velocity limiter and lift car; The speed limit steel rope drives velocity limiter with the operation of car linear velocity, and when the running velocity of described lift car surpassed preset threshold value, described velocity limiter started to limit the running velocity of described car.
In addition, also comprise the safety tongs that links to each other with described car, the safety tongs shift mechanism that lifts described safety tongs; And the disconnected rope detection components and the safety switch that link to each other with described speed limit steel rope;
Described disconnected rope detection components triggers described safety switch when described speed limit steel rope disconnects, make described safety switch disconnect safety return circuit and brake electric car sedan-chair.
In addition, described disconnected rope detection components comprises:
The upper end links to each other with described speed limit steel rope, and is socketed in the double-screw bolt on the described safety tongs shift mechanism;
Be socketed in the spring that can carry out elastic telescopic on the described double-screw bolt along described double-screw bolt;
Pad is ended in first of the described spring upper end that is positioned at that is fixed on the described double-screw bolt;
What be positioned at described spring lower end ends pad with second of described double-screw bolt socket; And
Be positioned at described second that end the pad below and the described double-screw bolt by what be threaded, be used for the fastener of the described spring of pretension.
In addition, described speed limit steel rope carries out sliding block joint by slide assemblies and described counterweight;
Described slide assemblies upper end is connected with described speed limit steel rope, and slides up and down at the described counterweight in the traction lower edge of described speed limit steel rope.
Compared with prior art, the present invention has following beneficial effect:
Because the present invention arranges roller above Elevator weight sensor, this roller guiding speed limit steel rope links to each other with Elevator weight sensor, thereby has reduced the use amount of speed limit steel rope, has reduced cost.
Description of drawings
Fig. 1 is the scheme drawing of prior art;
Fig. 2 is the elevator scheme drawing that has speed limiting safety system of the present invention;
Fig. 3 is the scheme drawing of elevator speed limiting safety system cage side of the present invention;
Fig. 4 is the scheme drawing of elevator speed limiting safety system of the present invention to heavy side.
The specific embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.Wherein same or analogous drawing reference numeral is represented same or analogous parts.Followingly explanation of the present invention is intended to inventive concept of the present invention is made an explanation, and can not be interpreted as a kind of restriction protection domain of the present invention with reference to accompanying drawing.
As shown in Figure 2, speed limit steel rope 204 two ends link to each other with counterweight 201 and car 205 respectively;
In running process of elevator, speed limit steel rope 204 drives velocity limiter 203 and car 205 synchronized operations, and when the speed of car 205 surpassed preset threshold value, velocity limiter 203 disconnected safety return circuit or clamps the speed limit steel rope and makes car 205 out of service.
As shown in Figure 3, speed limit steel rope 204 links to each other with safety detection assembly 300 in cage side.During specific implementation, speed limit steel rope 204 links to each other with double-screw bolt 303.Be socketed with on the double-screw bolt 303 that safety tongs shift mechanism 302, first ends pad 308, spring 307, second ends pad 306 and clamp nut 305, wherein clamp nut 305 is threaded with double-screw bolt 303, the installation site of clamp nut 305 is decided by the predetermincd tension of spring 307, so that under the open circuited situation of speed limit steel rope, spring 304 has enough elastic force in the short as far as possible time double-screw bolt to be moved downward, with safety switch 304 bumps, trigger safety switch 304 and disconnect safety return circuit.
When car exceeds the speed limit, velocity limiter 203 clamps speed limit steel rope 204, closely impose on the pulling force that double-screw bolt 303 1 makes progress, safety tongs shift mechanism 302 is socketed in and therefore also is subjected to upwards drawing upright effect on the double-screw bolt, thereby lift safety tongs 301, safety tongs 301 stops the motion of car owing to being lifted 205 1 of cars and the opposite power of car 205 sense of motions of imposing on.
When the speed limit steel rope disconnected, double-screw bolt 303 was subjected to the downward application force of spring 307 when being subjected to action of gravity, therefore can move downward by fast speed, and bump safety switch 304 triggers and opens complete shut-down 304 and disconnect safety return circuits, makes car 205 stop motions; Meanwhile, safety tongs shift mechanism 302 also is subjected to the upwards elastic force of spring 307, safety tongs shift mechanism 302 upwards lifts safety tongs 301 under the effect of this elastic force that makes progress, and closely makes safety tongs 301 impose on 205 1 pulling force that make progress of car with braking car 205.The elastic force that spring 307 is produced can be regulated by the installation site of regulating clamp nut 305, with at short as far as possible time inside brake car.Spring 307 also can adopt other elastic element to replace in addition, is not enumerating one by one at this.
As shown in Figure 4, the present invention has introduced slide block assembly 400, to prevent that the speed limit steel rope disconnects because of flat-out acceleration when elevator rope disconnects.
To heavy side, speed limit steel rope 204 is connected with slide block 310.Slide block 310 slides along slide rail 309.Sliding rail 309 is installed on the counterweight, and the length of track can be adjusted according to actual conditions, has only represented a kind of situation of track length among the figure, and paired inadequately restriction of the present invention.
When elevator rope disconnected, car quickened, and at this moment slide block quickens to slide under the traction of speed limit steel rope on sliding rail, and when surpassing preset threshold value, velocity limiter starts the running velocity with the restriction car.Quoting of slide block assembly quickened to have played buffer action to the speed limit steel rope, prevented the unexpected fracture of speed limit steel rope, and the while also provides the time for the startup of velocity limiter.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (10)
1, a kind of elevator speed limiting safety system, it is characterized in that, comprise: the velocity limiter (203) that is arranged in lift car (205) top, be arranged in the roller (202) of Elevator weight sensor (201) top, and the speed limit steel rope (204) that connects lift car (205), velocity limiter (203), roller (202) and Elevator weight sensor (201) in turn;
Wherein, roller (202) guiding speed limit steel rope (204) links to each other with velocity limiter (203) and lift car (205); Speed limit steel rope (204) drives the linear velocity operation of velocity limiter (203) with car (205), and when the running velocity of lift car (205) surpassed preset threshold value, velocity limiter (203) started with braking car (205).
2, elevator speed limiting safety system according to claim 1 is characterized in that, also comprises safety tongs (301) that links to each other with car (205) and the safety tongs shift mechanism (302) that lifts safety tongs (301);
When car (205) exceeded the speed limit, velocity limiter clamped speed limit steel rope (204), imposes on (302) power that make progress of safety tongs shift mechanism, and safety tongs shift mechanism (302) lifts safety tongs (301) with braking car (205).
3, elevator speed limiting safety system according to claim 2 is characterized in that, also comprises the disconnected rope detection components (300) and the safety switch (304) that link to each other with speed limit steel rope (204);
Disconnected rope detection components (300) triggers safety switch (304) when speed limit steel rope (204) disconnects, make safety switch (304) disconnect safety return circuit and brake electric car sedan-chair (205).
4, elevator speed limiting safety system according to claim 3 is characterized in that, described disconnected rope detection components (300) comprising:
The upper end links to each other with speed limit steel rope (204), and is socketed in the double-screw bolt (303) on the safety tongs shift mechanism (302);
Be socketed in the spring (307) that can carry out elastic telescopic on the double-screw bolt (303) along double-screw bolt (303);
Pad (308) is ended in first of spring (307) upper end that is positioned at that is fixed on the double-screw bolt (303);
What be positioned at spring (307) lower end ends pad (306) with second of double-screw bolt (303) socket; And
Be positioned at second that end pad (306) below and the double-screw bolt (303) by what be threaded, be used for the fastener (305) of preloading spring (307).
5, elevator speed limiting safety system according to claim 4 is characterized in that, speed limit steel rope (204) carries out sliding block joint with counterweight (201) by slide assemblies (400);
Slide assemblies (400) upper end is connected with speed limit steel rope (204), and slides up and down at the traction lower edge of speed limit steel rope (204) counterweight (201).
According to the described elevator speed limiting safety system of claim 5, it is characterized in that 6, slide assemblies (400) comprising:
The sliding shoe (310) that links to each other with speed limit steel rope (204); And
Be installed on the counterweight (201), the slide rail (309) of sliding rail is provided for sliding shoe (400).
7, a kind of elevator comprises lift car and counterweight, it is characterized in that, also comprises:
Be arranged in the velocity limiter of lift car top, be arranged in the roller of described Elevator weight sensor top, and the speed limit steel rope that connects described lift car, velocity limiter, roller and Elevator weight sensor in turn;
Wherein, the described roller described speed limit steel rope that leads links to each other with described velocity limiter and lift car; The speed limit steel rope drives velocity limiter with the operation of car linear velocity, and when the running velocity of described lift car surpassed preset threshold value, described velocity limiter started to limit the running velocity of described car.
8, elevator according to claim 7 is characterized in that, also comprises the safety tongs that links to each other with described car, the safety tongs shift mechanism that lifts described safety tongs; The disconnected rope detection components that links to each other with described speed limit steel rope, and safety switch;
Described disconnected rope detection components triggers described safety switch when described speed limit steel rope disconnects, make described safety switch disconnect safety return circuit and brake electric car sedan-chair.
9, elevator according to claim 8 is characterized in that, described disconnected rope detection components comprises:
The upper end links to each other with described speed limit steel rope, and is socketed in the double-screw bolt on the described safety tongs shift mechanism;
Be socketed in the spring that can carry out elastic telescopic on the described double-screw bolt along described double-screw bolt;
Pad is ended in first of the described spring upper end that is positioned at that is fixed on the described double-screw bolt;
What be positioned at described spring lower end ends pad with second of described double-screw bolt socket; And
Be positioned at described second that end the pad below and the described double-screw bolt by what be threaded, be used for the fastener of the described spring of pretension.
According to each described elevator among the claim 7-9, it is characterized in that 10, described speed limit steel rope carries out sliding block joint by slide assemblies and described counterweight;
Described slide assemblies upper end is connected with described speed limit steel rope, and slides up and down at the described counterweight in the traction lower edge of described speed limit steel rope
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100611508A CN101239683B (en) | 2008-03-14 | 2008-03-14 | Elevator and its speed limiting safety system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100611508A CN101239683B (en) | 2008-03-14 | 2008-03-14 | Elevator and its speed limiting safety system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101239683A true CN101239683A (en) | 2008-08-13 |
| CN101239683B CN101239683B (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100611508A Active CN101239683B (en) | 2008-03-14 | 2008-03-14 | Elevator and its speed limiting safety system |
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| CN (1) | CN101239683B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622761A (en) * | 2018-07-06 | 2018-10-09 | 苏州福特美福电梯有限公司 | A kind of fall protection equipment of elevator |
| CN111924677A (en) * | 2020-06-16 | 2020-11-13 | 浙江智菱科技有限公司 | Elevator anti-falling safety protection system |
| CN111977483A (en) * | 2020-09-14 | 2020-11-24 | 太富电梯科技有限公司 | Speed limiting device of elevator |
-
2008
- 2008-03-14 CN CN2008100611508A patent/CN101239683B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622761A (en) * | 2018-07-06 | 2018-10-09 | 苏州福特美福电梯有限公司 | A kind of fall protection equipment of elevator |
| CN111924677A (en) * | 2020-06-16 | 2020-11-13 | 浙江智菱科技有限公司 | Elevator anti-falling safety protection system |
| CN111977483A (en) * | 2020-09-14 | 2020-11-24 | 太富电梯科技有限公司 | Speed limiting device of elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101239683B (en) | 2010-11-03 |
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Address after: 310019 No. nine, 28 Ring Road, Hangzhou, Zhejiang, Jianggan District Patentee after: Otis Electrical Elevator Co., Ltd. Address before: 310019 No. nine, 28 Ring Road, Jianggan Economic Zone, Hangzhou, Zhejiang Patentee before: Xizi Otis Elevator Co., Ltd. |