CN110436303B - High-adaptability elevator speed-limiting tensioning device - Google Patents
High-adaptability elevator speed-limiting tensioning device Download PDFInfo
- Publication number
- CN110436303B CN110436303B CN201910794581.3A CN201910794581A CN110436303B CN 110436303 B CN110436303 B CN 110436303B CN 201910794581 A CN201910794581 A CN 201910794581A CN 110436303 B CN110436303 B CN 110436303B
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- Prior art keywords
- fixed
- pit
- balancing weight
- fixed pulley
- pulley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
Abstract
The invention discloses a high-adaptability elevator speed-limiting tensioning device, which comprises a first fixed pulley arranged on the wall surface of a pit, wherein a limiting sliding frame fixed on the wall surface of the pit is arranged below the first fixed pulley, a balancing weight is arranged in the limiting sliding frame, and a hook is arranged at the upper end of the balancing weight; the device also comprises a guide frame arranged on the ground of the pit, wherein a guide chute is arranged on the guide frame, a sliding block is arranged on the guide chute, a tension wheel assembly is arranged on one side of the sliding block, and a movable pulley is arranged on the other side of the sliding block; two sides of the bottom of the guide chute are also provided with a second fixed pulley and a fixed ring; a tensioning rope is arranged between the fixing ring and the hook and sequentially penetrates through the movable pulley, the second fixed pulley and the first fixed pulley. The invention can effectively reduce the requirement on the installation space of the hoistway.
Description
Technical Field
The invention relates to an elevator speed-limiting tensioning device, in particular to a high-adaptability elevator speed-limiting tensioning device.
Background
The elevator speed limiter is a component for limiting the speed of an elevator, and is a safety control component in an elevator safety protection system; however, in the high-speed operation of the elevator, when the tension force of the speed limiter is insufficient, the steel wire rope of the speed limiter cannot meet the traction condition directly, so that the slipping phenomenon is generated, the operation speed of the elevator cannot be effectively controlled, the steel wire rope is abraded and even broken, and the life safety of passengers is threatened directly. In order to overcome the problem of insufficient tension force, a tension device is arranged at the bottom pit of the elevator to tension and limit the steel wire rope of the speed limiter, so that the speed limiter and the safety tongs are ensured to act safely and reliably. The existing tensioning devices in the market are mainly divided into a weight type tensioning device and a swing rod type tensioning device, and both have high requirements on installation space, for example, the depth of a pit required by the installation of the weight type tensioning device is high, and the depth of a hoistway is required by the swing rod type tensioning device; meanwhile, in order to satisfy the tensioning force, a counterweight block with a large volume is usually arranged, and more well and pit areas need to be occupied. Therefore, the prior art has the problem of high requirement on installation space. .
Disclosure of Invention
The invention aims to provide a high-adaptability elevator speed-limiting tensioning device. The invention can effectively reduce the requirement on the installation space of the hoistway.
The technical scheme of the invention is as follows: a high-adaptability elevator speed-limiting tensioning device comprises a first fixed pulley arranged on a bottom pit wall surface, a limiting sliding frame fixed on the bottom pit wall surface is arranged below the first fixed pulley, a balancing weight is arranged in the limiting sliding frame, and a hook is arranged at the upper end of the balancing weight; the device also comprises a guide frame arranged on the ground of the pit, wherein a guide chute is arranged on the guide frame, a sliding block is arranged on the guide chute, a tension wheel assembly is arranged on one side of the sliding block, and a movable pulley is arranged on the other side of the sliding block; two sides of the bottom of the guide chute are also provided with a second fixed pulley and a fixed ring; a tensioning rope is arranged between the fixing ring and the hook and sequentially penetrates through the movable pulley, the second fixed pulley and the first fixed pulley.
In the high-adaptability elevator speed-limiting tensioning device, the fixing frame is arranged between the first fixed pulley and the wall surface of the pit.
In the high-adaptability elevator speed-limiting tensioning device, the guide frame is of an L-shaped structure, and the bottom surface of the guide frame is fixed with the bottom shell ground through bolts.
In the high-adaptability elevator speed-limiting tensioning device, the side wall of the limiting sliding frame is provided with the safety switch, and the upper end of the side wall of the balancing weight is provided with the switch beating plate matched with the safety switch.
In the high-adaptability elevator speed-limiting tensioning device, the tensioning wheel assembly is provided with the speed limiter steel wire rope.
In the high-adaptability elevator speed-limiting tensioning device, the two ends of the bottom of the balancing weight are provided with the baffle plates, the baffle plates are provided with the cushion pads, and the springs are arranged between the cushion pads and the baffle plates.
Compared with the prior art, the invention consists of a first fixed pulley, a counterweight block, a guide frame, a movable pulley, a second fixed pulley and a fixed ring which are arranged on the wall surface of a pit, and the guide frame, the movable pulley, the second fixed pulley and the fixed ring which are arranged on the ground of the pit, and the components are connected in series through a tensioning rope, and one end of the tensioning rope is tied with a counterweight, thereby providing a downward tensioning force for a tensioning wheel assembly and achieving the tensioning effect of the steel wire rope of the speed limiter; by adopting the structure, the structure and the installation are flexible, the vacant space of the well can be utilized to the maximum extent, the requirement on the installation space of the well is reduced, and the well with the shallow bottom pit and the small size can be met; meanwhile, the weight of the balancing weight can be reduced to a great extent, and the size of the balancing weight can be further reduced. Meanwhile, the guide sliding groove is formed in the guide frame, the movable pulley is driven to move up and down through the mutual matching of the sliding block and the guide sliding groove, and under the action of the balancing weight, the movable pulley can be correspondingly and automatically adjusted according to the different tension force applied to the tension pulley assembly, so that the optimal tension state can be guaranteed in real time, and the application range can be further improved. In conclusion, the invention can effectively reduce the requirement on the installation space of the shaft.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a structural view of the baffle.
The labels in the figures are: 1-a first fixed pulley, 2-a limiting sliding frame, 3-a balancing weight, 4-a hook, 5-a guide frame, 6-a guide chute, 7-a sliding block, 8-a tensioning wheel assembly, 9-a movable pulley, 10-a second fixed pulley, 11-a fixed ring, 12-a tensioning rope, 13-a fixed frame, 14-a safety switch, 15-a switch striking plate, 16-a speed limiter steel wire rope, 301-a baffle, 302-a buffer pad and 303-a spring.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. A high-adaptability elevator speed-limiting tensioning device is formed as shown in figures 1 to 3 and comprises a first fixed pulley 1 arranged on a bottom pit wall surface, a limiting sliding frame 2 fixed on the bottom pit wall surface is arranged below the first fixed pulley 1, a balancing weight 3 is arranged in the limiting sliding frame 2, and a hook 4 is arranged at the upper end of the balancing weight 3; the pit is characterized by further comprising a guide frame 5 arranged on the ground of the pit, a guide chute 6 is arranged on the guide frame 5, a sliding block 7 is arranged on the guide chute 6, a tension pulley assembly 8 is arranged on one side of the sliding block 7, and a movable pulley 9 is arranged on the other side of the sliding block 7; two sides of the bottom of the guide chute 6 are also provided with a second fixed pulley 10 and a fixed ring 11; a tensioning rope 12 is arranged between the fixing ring 11 and the hook 4, and the tensioning rope 12 sequentially passes through the movable pulley 9, the second fixed pulley 10 and the first fixed pulley 1.
And a fixed frame 13 is arranged between the first fixed pulley 1 and the wall surface of the pit.
The guide frame 5 is of an L-shaped structure, and the bottom surface of the guide frame 5 is fixed with the ground of the bottom shell through bolts.
The side wall of the limiting sliding frame 2 is provided with a safety switch 14, and the upper end of the side wall of the balancing weight 3 is provided with a switch beating plate 15 matched with the safety switch 14.
And a speed governor steel wire rope 16 is arranged on the tension wheel assembly 8.
Baffle 301 is equipped with at the both ends of balancing weight 3 bottom, is equipped with blotter 302 on baffle 301, is equipped with spring 303 between blotter 302 and the baffle 301.
The safety switch being a UKS switch
The safety switch is connected with the elevator control system. The elevator can stop running when the safety switch is actuated, and a corresponding fault code is reported, so that the elevator can run after the fault is clearly repaired.
The working process of the invention is as follows: when the tension force on the speed limiter is small, the steel wire rope of the speed limiter is loosened, the tension pulley assembly drives the sliding block to descend under the action of gravity, and the balancing weight descends under the drive of the tension rope; when the tension force on the speed limiter is too large, the steel wire rope of the speed limiter is forced upwards to drive the tension wheel assembly to ascend, the sliding block is driven to ascend, and the balancing weight block ascends along with the tension wheel assembly; when the balancing weight reaches the lowest point, the switch beating plate on the balancing weight can touch the safety switch, and the safety switch can automatically cut off the power supply of the system, so that the elevator is suddenly stopped, and the danger is avoided.
Claims (1)
1. The utility model provides a high adaptability elevator speed limit rises and tightly installs which characterized in that: the device comprises a first fixed pulley (1) arranged on the wall surface of a pit, a limiting sliding frame (2) fixed on the wall surface of the pit is arranged below the first fixed pulley (1), a balancing weight (3) is arranged in the limiting sliding frame (2), and a hook (4) is arranged at the upper end of the balancing weight (3); the pit is characterized by further comprising a guide frame (5) arranged on the ground of the pit, a guide chute (6) is arranged on the guide frame (5), a sliding block (7) is arranged on the guide chute (6), a tensioning wheel assembly (8) is arranged on one side of the sliding block (7), and a movable pulley (9) is arranged on the other side of the sliding block (7); two sides of the bottom of the guide chute (6) are also provided with a second fixed pulley (10) and a fixed ring (11); a tensioning rope (12) is arranged between the fixed ring (11) and the hook (4), and the tensioning rope (12) sequentially passes through the movable pulley (9), the second fixed pulley (10) and the first fixed pulley (1);
a fixed frame (13) is arranged between the first fixed pulley (1) and the wall surface of the pit;
the guide frame (5) is of an L-shaped structure, and the bottom surface of the guide frame (5) is fixed with the ground of the bottom shell through a bolt;
a safety switch (14) is arranged on the side wall of the limiting sliding frame (2), and a switch beating plate (15) matched with the safety switch (14) is arranged at the upper end of the side wall of the balancing weight (3);
a speed governor steel wire rope (16) is arranged on the tensioning wheel assembly (8);
baffles (301) are arranged at two ends of the bottom of the balancing weight (3), a cushion pad (302) is arranged on each baffle (301), and a spring (303) is arranged between each cushion pad (302) and each baffle (301);
when the tension force on the speed limiter is small, the steel wire rope of the speed limiter is loosened, the tension pulley assembly drives the sliding block to descend under the action of gravity, and the balancing weight descends under the drive of the tension rope; when the tension force on the speed limiter is too large, the steel wire rope of the speed limiter is forced upwards to drive the tension wheel assembly to ascend, the sliding block is driven to ascend, and the balancing weight block ascends along with the tension wheel assembly; when the counterweight block reaches the lowest point, the switch beating plate on the counterweight block can touch the safety switch, and the safety switch can automatically cut off the power supply of the system, so that the elevator is suddenly stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794581.3A CN110436303B (en) | 2019-08-27 | 2019-08-27 | High-adaptability elevator speed-limiting tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794581.3A CN110436303B (en) | 2019-08-27 | 2019-08-27 | High-adaptability elevator speed-limiting tensioning device |
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| Publication Number | Publication Date |
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| CN110436303A CN110436303A (en) | 2019-11-12 |
| CN110436303B true CN110436303B (en) | 2021-11-09 |
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| CN201910794581.3A Active CN110436303B (en) | 2019-08-27 | 2019-08-27 | High-adaptability elevator speed-limiting tensioning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114465439A (en) * | 2022-01-12 | 2022-05-10 | 深圳市克洛诺斯科技有限公司 | Linear electric motor counter weight device |
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| JPH05319730A (en) * | 1992-05-21 | 1993-12-03 | Toshiba Corp | Tensioner device of governor rope for inclined elevator |
| CN201002901Y (en) * | 2007-01-25 | 2008-01-09 | 康力集团有限公司 | Speed limiter tensioning device for lift |
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| EP2338822A1 (en) * | 2009-12-23 | 2011-06-29 | Inventio AG | Lift facility with speed restrictor |
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| CN204751772U (en) * | 2014-12-31 | 2015-11-11 | 允成机电科技(上海)有限公司 | Upper and lower slotted of home use elevator rises and tightly installs |
| CN104692212B (en) * | 2015-03-17 | 2017-09-26 | 江南嘉捷电梯股份有限公司 | A kind of elevator expansion apparatus |
| CN204873333U (en) * | 2015-08-25 | 2015-12-16 | 宁波奥德普电梯部件有限公司 | Elevator rises and tightly installs |
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