CN104495584A - Pneumatic traction system - Google Patents
Pneumatic traction system Download PDFInfo
- Publication number
- CN104495584A CN104495584A CN201410764015.5A CN201410764015A CN104495584A CN 104495584 A CN104495584 A CN 104495584A CN 201410764015 A CN201410764015 A CN 201410764015A CN 104495584 A CN104495584 A CN 104495584A
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- CN
- China
- Prior art keywords
- traction
- sheave
- pneumatic
- cylinder
- electromagnetic valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/0423—Driving gear ; Details thereof, e.g. seals actuated pneumatically or hydraulically
-
- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Abstract
The invention discloses a pneumatic traction system, which comprises a traction air cylinder, a speed limiter, a steel wire rope assembly and a pull rod assembly, wherein the speed limiter is arranged at the outer side of the dragging air cylinder, a piston rod of the dragging air cylinder is connected with the steel wire rope assembly, and the steel wire rope assembly bypasses the speed limiter, is connected with the pull rod assembly and is tightly pulled. The pneumatic traction system has the advantages that through the structural design of linking a traction system with a safety protection system mechanism, the structure is simplified, the manufacturing cost is low, meanwhile, the work is stable, and safety and reliability are realized.
Description
Technical field
The present invention relates to traction elevator field, particularly a kind of traction system that propulsion source is provided by pneumatic system.
Background technology
Existing traction elevator, does not have structure connection between its traction system and safety system, can not play mechanism's interlock effect, therefore makes the two complex structure, thus adds manufacturing cost, also bring the problem of working stability and safe reliability.
Summary of the invention
The object of the invention is to provide a kind of pneumatic traction system, reduced the manufacturing cost of elevator by the structure simplifying traction system and safety system, and make its stable working, safe and reliable.
According to an aspect of the present invention, provide pneumatic traction system, comprise traction cylinder, velocity limiter, steel wire rope component and safety tongs rod assembly, velocity limiter is installed on outside traction cylinder, the piston rod of traction cylinder is connected with steel wire rope component, steel wire rope component walks around velocity limiter, and is connected with safety tongs rod assembly and strains.
Its beneficial effect is: when above-mentioned pneumatic traction system is installed on elevator, safety tongs rod assembly is installed on car and is connected to safety tongs, traction air cylinder driven steel wire rope component, thus pull safety tongs rod assembly, and then pull car to rise and decline, pulling force due to steel wire rope component is less than the pulling force of safety tongs rod assembly institute stretchy safety tongs, and safety tongs is failure to actuate, and elevator normally works; When elevator is out of control exceed command speed time; velocity limiter is braked; traction cylinder quits work; car continues to rise or decline; now the pulling force of steel wire rope component is greater than the pulling force of safety tongs rod assembly institute stretchy safety tongs; safety tongs action; vise guide rail; play safety guard-safeguard effect; therefore both can realize traction cylinder traction car, and can realize again pulling safety tongs to carry out safety guard-safeguard by safety tongs rod assembly, simplify the structure; reduce the manufacturing cost of elevator, the simultaneously driving of traction cylinder make elevator operate steadily, safe and reliable.
In some embodiments, safety tongs rod assembly comprises pulling-rod frame, upper support spring, lower support spring, pull bar and arm-tie, pull bar is horizontal through pulling-rod frame, and the upper and lower side of pull bar is respectively by upper support spring, lower support spring-loaded in pulling-rod frame, and arm-tie is connected with steel wire rope component.
Its beneficial effect is: when elevator normally works, on the one hand, the piston rod of traction cylinder stretches out and drives steel wire rope component, pull bar peaks at support spring and pulling-rod frame, pulling force due to steel wire rope component is less than the spring force of upper support spring, make pull bar motionless relative to pulling-rod frame, then pull bar can not pull safety tongs action, car is up, on the other hand, pull bar peaks at lower support spring and pulling-rod frame, pulling force due to steel wire rope component is less than the spring force of lower support spring, make pull bar motionless relative to pulling-rod frame, then pull bar can not pull safety tongs action, car is up, otherwise, the piston rod of traction cylinder is retracted, car is descending.When car upstream or downstream are out of control, when exceeding command speed; steel wire rope component is braked under velocity limiter effect; car continues to rise or decline; thus pull steel wire rope component; the spring force that this pulling force can overcome lower support spring, upper support spring produces, make the relative pulling-rod frame action of pull bar, then pull bar pulls safety tongs action; vise guide rail, safety guard-safeguard effect is played to elevator.
In some embodiments, steel wire rope component comprises land wheel, assembly pulley, pull-up steel rope and drop-down steel rope, one end of pull-up steel rope is connected to the upper end of arm-tie, the other end walks around velocity limiter, assembly pulley being connected with machine room fag end successively, one end of drop-down steel rope is connected to the lower end of arm-tie, the other end walks around land wheel, assembly pulley being connected with pit fag end successively, and assembly pulley is connected with the piston rod of traction cylinder.
Its beneficial effect is: the piston rod of traction cylinder stretches out, and driving pull-up steel rope upwards shrinks and drop-down steel rope upwards extends, and car rises, otherwise the piston rod of traction cylinder is retracted, and cage descending, therefore can realize the traction of car.
In some embodiments, assembly pulley comprises top sheave, lower sheave and pulley yoke, pulley yoke is placed on top sheave and lower sheave, top sheave and lower sheave are each passed through sheave shaft and are connected with pulley yoke, and respectively by being sheathed on the roller bearings of sheave shaft, the two ends of sheave shaft are all fixed by collar, the other end of pull-up steel rope walks around velocity limiter, top sheave being connected with machine room fag end successively, the other end of drop-down steel rope walks around land wheel, lower sheave being connected with pit fag end successively, and pulley yoke is connected with the piston rod of traction cylinder.
Its beneficial effect is: ensure that top sheave, lower sheave and pulley yoke are connected firmly, be convenient to the rotation of top sheave, lower sheave, and pulley yoke serves protective effect to top sheave, lower sheave simultaneously.
In some embodiments, pneumatic traction system also comprises pneumatic system, pneumatic system comprises lifting electromagnetic valve, intake-air throttle valve, speed governing cylinder, return-air flow regulating valve, speed governing electromagnetic valve, flow regulating valve, reducing valve and air compression station, traction cylinder is connected with lifting electromagnetic valve, lifting electromagnetic valve is connected to air compression station by intake-air throttle valve, and be vented by return-air flow regulating valve, speed governing cylinder is connected with speed governing electromagnetic valve, speed governing electromagnetic valve is connected to air compression station by flow regulating valve, reducing valve successively, and is vented by flow regulating valve.
Its beneficial effect is: this pneumatic system achieves the lifting of car by the driving of lifting solenoid control traction cylinder, and is achieved the speed regulation process of elevator by the driving of speed governing solenoid control speed governing cylinder, ensure that the normal operation of elevator.
Beneficial effect of the present invention is: the structure design linked by traction system and safety system mechanism, makes designs simplification, low cost of manufacture, also makes stable working, safe and reliable simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pneumatic traction system of an embodiment of the present invention;
Fig. 2 is the front view of the assembly pulley of traction system pneumatic shown in Fig. 1;
Fig. 3 is for looking cutaway view in a left side for assembly pulley shown in Fig. 2;
Fig. 4 is the schematic front view of the safety tongs rod assembly of traction system pneumatic shown in Fig. 1;
Fig. 5 is for looking schematic diagram in a left side for the rod assembly of safety tongs shown in Fig. 4;
Fig. 6 is the structural representation of the pneumatic system of traction system pneumatic shown in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 show schematically show the pneumatic traction system according to one embodiment of the present invention.
As shown in Figure 1, this pneumatic traction system comprises traction cylinder 1, velocity limiter 2, steel wire rope component 3, rod assembly 4 and pneumatic system 5, traction cylinder 1 is installed on the left side of car 6 vertically, velocity limiter 2 is connected with the connecting panel bolt bottom traction cylinder 1, and the piston rod 11 of traction cylinder 1 is threaded with assembly pulley 32.Steel wire rope component 3 comprises land wheel 31, assembly pulley 32, pull-up steel rope 33 and drop-down steel rope 34, and land wheel 31 is connected with pit bolt.
As shown in Figure 2,3, assembly pulley 32 comprises top sheave 321, lower sheave 322 and pulley yoke 323, pulley yoke 323 is placed on top sheave 321 and lower sheave 322, top sheave 321 and lower sheave 322 are each passed through sheave shaft 324 and are connected with pulley yoke 323, sheave shaft 324 all overlaps has two antifriction-bearing boxs 325 for supporting top sheave 321 and lower sheave 322, and the two ends of sheave shaft 324 all adopt collar 326 to fix.
As shown in Figure 4,5, safety tongs rod assembly 4 comprises pulling-rod frame 41, upper support spring 42, lower support spring 43, pull bar 44 and arm-tie 45, pull bar 44 is horizontal through pulling-rod frame 41, the upper and lower side of pull bar 44 is supported on pulling-rod frame 41 respectively by upper support spring 42, lower support spring 43, arm-tie 45 is connected by bearing pin 46 with pull bar 44, and pulling-rod frame 41 is connected with car 6 bolt, and right-hand member and the safety tongs 7 of pull bar 4 are hinged, safety tongs 7 is installed at the car 6 end of elevator, corresponding with guide rail.The upper and lower end of arm-tie 45 connects pull-up steel rope 33, drop-down steel rope 34 respectively.
As shown in Fig. 1,2,3,4,5, the right-hand member of pull-up steel rope 33 and the upper end of arm-tie 45 are bolted tension, the left end of pull-up steel rope 33 walks around velocity limiter 2, top sheave 321 combine 35 with machine room fag end and be bolted tension successively, the right-hand member of drop-down steel rope 34 and the lower end of arm-tie 45 are bolted tension, the left end of drop-down steel rope 34 walks around land wheel 31, lower sheave 322 combine 36 with pit fag end and be bolted tension successively, and assembly pulley 32 is connected with the bottom thread of the piston rod 11 of traction cylinder 1.
As shown in Figure 6, pneumatic system 5 comprises lifting electromagnetic valve 51, intake-air throttle valve 52, speed governing cylinder 53, return-air flow regulating valve 54, speed governing electromagnetic valve 55, flow regulating valve 56, reducing valve 57 and air compression station 58, air compression station 58 is for providing the pressurized air of whole pneumatic system 5, traction cylinder 1 is connected with lifting electromagnetic valve 51, lifting electromagnetic valve 51 is connected to air compression station 58 by intake-air throttle valve 52, and be vented by return-air flow regulating valve 54, speed governing cylinder 53 is connected with speed governing electromagnetic valve 55, speed governing electromagnetic valve 55 is successively by flow regulating valve 56, reducing valve 57 is connected to air compression station 58, and be vented by flow regulating valve 56.
As shown in Fig. 1,2,3,4,5,6, pneumatic traction system principle of work is as follows: pressurized air enters traction cylinder 1 through intake-air throttle valve 52, lifting electromagnetic valve 51, and is vented through lifting electromagnetic valve 51, return-air flow regulating valve 54.
When elevator normally works, when a end of lifting electromagnetic valve 51 is energized, the piston rod 11 of compressed air-driven traction cylinder 1 stretches out, under the effect of top sheave 321, on the one hand, pull-up steel rope 33 pulls pull bar 44, pull bar 44 peaks at support spring 42 and pulling-rod frame 41, pulling force due to pull-up steel rope 33 is less than the spring force of upper support spring 42, pulling-rod frame 41 is motionless relatively to make pull bar 44, then pull bar 44 can not pull safety tongs 7 action, thus drive pull-up steel rope 33 upwards to shrink, car 6 is up, on the other hand, traction cylinder 1 drives drop-down steel rope 34 and pulls pull bar 44, pull bar 44 peaks at lower support spring 43 and pulling-rod frame 41, pulling force due to drop-down steel rope 34 is less than the spring force of lower support spring 43, pulling-rod frame 41 is motionless relatively to make pull bar 44, then pull bar 44 can not pull safety tongs 7 action, thus drive drop-down steel rope 34 upwards to extend, car 6 is up.Otherwise the piston rod 11 of cylinder 1 is retracted, and car 6 is descending.Stroke one timing of traction cylinder 1, pull-up steel rope 33 and drop-down steel rope 34 around the number of turns more, the height that car 6 is elevated is higher.
When car 6 upstream or downstream are out of control, when exceeding command speed, pull-up steel rope 33, drop-down steel rope 34 is braking under velocity limiter 2 acts on, car 6 continues to rise or decline, thus make drop-down steel rope 34 accordingly, pull-up steel rope 33 produces pulling force, this pulling force can overcome lower support spring 43, the spring force that upper support spring 42 produces, make pull bar 44 pulling-rod frame 41 action relatively, then pull bar 44 pulls safety tongs 7 action, vise guide rail, safety guard-safeguard effect is played to elevator, therefore have effectively achieved traction cylinder 1 traction car 6 and the speed-limiting safety of car 6 to protect and synchronously carry out, safety guard-safeguard reliability is also add while simplifying tracting structure.
When car 6 is shut down, speed governing cylinder 53 under spring force, the opening of speed governing electromagnetic valve 55 is minimum, when car 6 is elevated, the e end energising of speed governing electromagnetic valve 55, pressurized air is through reducing valve 57, flow regulating valve 56, speed governing electromagnetic valve 55 enters speed governing cylinder 53, Compress Spring, the opening amount of speed governing electromagnetic valve 55 strengthens, car 6 accelerates, the f end energising of speed governing electromagnetic valve 55 before arriving at a station, speed governing cylinder 53 under spring force, gas in speed governing cylinder 53 is by speed governing electromagnetic valve 55, flow regulating valve 56 is discharged, the opening amount of speed governing electromagnetic valve 55 reduces, the speed of car 6 slows down, when arriving at a station, car 6 stops, thus the speed regulation process achieved when car 6 is elevated.
In above-mentioned speed regulation process, regulating the size of flow regulating valve 56 import and export, for changing the speed of speed governing electromagnetic valve 55 opening amount change, changing the gradient of car 6 acceleration and deceleration; Reducing valve 57 plays the control presssure of constant speed governing electromagnetic valve 55, i.e. load variations, and control presssure in speed regulation process is remained unchanged substantially, ensures elevator governor stability; The command speed that intake-air throttle valve 52 is elevated for regulating car 6, opening amount is little, and car 6 hoisting speed is little, and opening amount is large, and car 6 hoisting speed is fast.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. pneumatic traction system, it is characterized in that, comprise traction cylinder (1), velocity limiter (2), steel wire rope component (3) and safety tongs rod assembly (4), described velocity limiter (2) is installed on the outside of traction cylinder (1), the piston rod (11) of described traction cylinder (1) is connected with described steel wire rope component (3), described steel wire rope component (3) walks around velocity limiter (2), and is connected with described safety tongs rod assembly (4) and strains.
2. pneumatic traction system according to claim 1, it is characterized in that, described safety tongs rod assembly (4) comprises pulling-rod frame (41), upper support spring (42), lower support spring (43), pull bar (44) and arm-tie (45), described pull bar (44) is horizontal through pulling-rod frame (41), described pull bar (44) upper, downside is respectively by upper support spring (42), lower support spring (43) is supported on pulling-rod frame (41), described pull bar (44) and described arm-tie (45) pass through pinned connection, described arm-tie (45) is connected with described steel wire rope component (3).
3. pneumatic traction system according to claim 2, it is characterized in that, described steel wire rope component (3) comprises land wheel (31), assembly pulley (32), pull-up steel rope (33) and drop-down steel rope (34), one end of described pull-up steel rope (33) is connected to the upper end of arm-tie (43), the other end walks around velocity limiter (2) successively, assembly pulley (32) also combines (35) and is connected with machine room fag end, one end of described drop-down steel rope (34) is connected to the lower end of arm-tie (43), the other end walks around land wheel (31) successively, assembly pulley (32) also combines (36) and is connected with pit fag end, described assembly pulley (32) is connected with the piston rod (11) of described traction cylinder (1).
4. pneumatic traction system according to claim 3, it is characterized in that, described assembly pulley (32) comprises top sheave (321), lower sheave (322) and pulley yoke (323), described pulley yoke (323) is placed on top sheave (321) and lower sheave (322), described top sheave (321) and lower sheave (322) are each passed through sheave shaft (324) and are connected with described pulley yoke (323), and support respectively by the antifriction-bearing box (325) being sheathed on sheave shaft (324), the two ends of described sheave shaft (324) are all fixed by collar (326), the other end of described pull-up steel rope (33) walks around velocity limiter (2) successively, top sheave (321) also combines (35) and is connected with machine room fag end, the other end of described drop-down steel rope (34) walks around land wheel (31) successively, lower sheave (322) also combines (36) and is connected with pit fag end, described pulley yoke (323) is connected with the piston rod (11) of described traction cylinder (1).
5. pneumatic traction system according to claim 4, it is characterized in that, also comprise pneumatic system (5), described pneumatic system (5) comprises lifting electromagnetic valve (51), intake-air throttle valve (52), speed governing cylinder (53), return-air flow regulating valve (54), speed governing electromagnetic valve (55), flow regulating valve (56), reducing valve (57) and air compression station (58), described traction cylinder (1) is connected with described lifting electromagnetic valve (51), described lifting electromagnetic valve (51) is connected to air compression station (58) by intake-air throttle valve (52), and by return-air flow regulating valve (54) exhaust, described speed governing cylinder (53) is connected with described speed governing electromagnetic valve (55), described speed governing electromagnetic valve (55) is successively by flow regulating valve (56), reducing valve (57) is connected to air compression station (58), and by flow regulating valve (56) exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764015.5A CN104495584B (en) | 2014-12-11 | 2014-12-11 | Pneumatic traction system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764015.5A CN104495584B (en) | 2014-12-11 | 2014-12-11 | Pneumatic traction system |
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| Publication Number | Publication Date |
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| CN104495584A true CN104495584A (en) | 2015-04-08 |
| CN104495584B CN104495584B (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410764015.5A Active CN104495584B (en) | 2014-12-11 | 2014-12-11 | Pneumatic traction system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302180A (en) * | 2020-03-20 | 2020-06-19 | 山东星斗智能设备有限公司 | Tractor underlying elevator for building construction and method for preventing cage from falling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0183616A2 (en) * | 1984-11-23 | 1986-06-04 | Otis Elevator Company | Elevator brake and safety |
| CN1657392A (en) * | 2005-03-07 | 2005-08-24 | 浙江大学 | Variable frequency closed type energy-saving hydraulic elevator system with mechanical balance weight |
| CN101353127A (en) * | 2008-09-22 | 2009-01-28 | 贾广生 | Single cylinder bidirectional drive hydraulic elevator and manufacturing method thereof |
| CN201280371Y (en) * | 2008-09-22 | 2009-07-29 | 贾广生 | Single-cylinder hydraulic elevator structure |
| CN202643033U (en) * | 2012-05-30 | 2013-01-02 | 江门市蒙德电气股份有限公司 | Electronic control elevator car braking device |
| CN202687684U (en) * | 2012-07-20 | 2013-01-23 | 天津瑟维斯科技有限公司 | Control device for electric lift safety gear |
| CN103449277A (en) * | 2013-09-16 | 2013-12-18 | 希姆斯电梯(中国)有限公司 | Lifting mechanism for safety tongs of elevator |
| CN203998506U (en) * | 2014-05-29 | 2014-12-10 | 希姆斯电梯(中国)有限公司 | Home lift safety tongs shift mechanism |
-
2014
- 2014-12-11 CN CN201410764015.5A patent/CN104495584B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0183616A2 (en) * | 1984-11-23 | 1986-06-04 | Otis Elevator Company | Elevator brake and safety |
| CN1657392A (en) * | 2005-03-07 | 2005-08-24 | 浙江大学 | Variable frequency closed type energy-saving hydraulic elevator system with mechanical balance weight |
| CN101353127A (en) * | 2008-09-22 | 2009-01-28 | 贾广生 | Single cylinder bidirectional drive hydraulic elevator and manufacturing method thereof |
| CN201280371Y (en) * | 2008-09-22 | 2009-07-29 | 贾广生 | Single-cylinder hydraulic elevator structure |
| CN202643033U (en) * | 2012-05-30 | 2013-01-02 | 江门市蒙德电气股份有限公司 | Electronic control elevator car braking device |
| CN202687684U (en) * | 2012-07-20 | 2013-01-23 | 天津瑟维斯科技有限公司 | Control device for electric lift safety gear |
| CN103449277A (en) * | 2013-09-16 | 2013-12-18 | 希姆斯电梯(中国)有限公司 | Lifting mechanism for safety tongs of elevator |
| CN203998506U (en) * | 2014-05-29 | 2014-12-10 | 希姆斯电梯(中国)有限公司 | Home lift safety tongs shift mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302180A (en) * | 2020-03-20 | 2020-06-19 | 山东星斗智能设备有限公司 | Tractor underlying elevator for building construction and method for preventing cage from falling |
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| CN104495584B (en) | 2016-11-23 |
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Effective date of registration: 20191107 Address after: 215400 group 2, Mijing village, Guizhuang District, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Taicang Kaiqi Shoes Co., Ltd Address before: 523000 Guangdong Province, Dongguan city Shijie town Yincui Fontana Gardens Building 2 903 Patentee before: Wu Jiaji |
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Effective date of registration: 20201023 Address after: 215400 room 01, building 13, No.1, Zhaoyan Road, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Suzhou Xineng Environmental Protection Technology Co.,Ltd. Address before: 215400 group 2, Mijing village, Guizhuang District, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Patentee before: Taicang Kaiqi Shoes Co.,Ltd. |
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