CN101973474A - Elevator overspeed protective device - Google Patents
Elevator overspeed protective device Download PDFInfo
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- CN101973474A CN101973474A CN 201010534334 CN201010534334A CN101973474A CN 101973474 A CN101973474 A CN 101973474A CN 201010534334 CN201010534334 CN 201010534334 CN 201010534334 A CN201010534334 A CN 201010534334A CN 101973474 A CN101973474 A CN 101973474A
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- steel rope
- conduit
- elevator
- collecting unit
- safety tongs
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Abstract
The invention relates to the technical field of elevator design and manufacture, in particular to an elevator overspeed protective device. The device mainly comprises an elevating device, safety tongs, an overspeed protection device and a tension device, wherein the safety tongs are arranged at the lower end of a lift car upright column and connected with the overspeed protection device through a lifting mechanism, and the overspeed protection device is arranged above a lifting rod at the top of a lift car and connected with the lifting rod; and the upper end of a steel wire rope, connected with the tension device, is fixed on a fixing frame of a floor slab at the top of a shaft way, the lower end of the steel wire rope penetrates through the overspeed protection device and the safety tongs to be connected with the tension device, the lower end of the tension device is fixed on the ground of a pit, and the steel wire rope is tensioned by the tension device. The invention has the advantages of changing the structure and the installation device position of an elevator speed limiter and saving the space of an elevator machine room and the quantity of the used steep wire ropes, therefore, the manufacture and use cost is reduced and the invention has a popularization and application prospect.
Description
Technical field
The present invention relates to elevator design and manufacturing technology field, specifically, is a kind of elevator overspeed protecting device.
Background technology
Along with increasing of skyscraper, the use of elevator is also more and more general.Therefore, the control to elevator speed becomes a relatively more crucial technology.At present, elevator governor is the main device of control elevator speed and manoeuvring safety pincers.Existing elevator governor is made up of velocity limiter 5, steel rope 6, safety tongs 9 and tension wheel 10, and safety tongs 9 wherein is with the elevator device of stop on guide rail by force with mechanical action.The main deficiency of existing elevator governor is that size is big, structure is complicated, is unfavorable for the employing (referring to accompanying drawing 1) of machine-roomless lift or small room elevator.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, propose a kind of elevator overspeed protecting device, it can reduce the elevator(lift) machine room space, simplifies the velocity limiter structure, saves the manufacturing cost and use cost of elevator.
For achieving the above object, the technical scheme taked of the present invention is:
A kind of elevator overspeed protecting device, contain counterweight, lift steel rope, diversion sheave, traction sheave, steel rope, lifting rod and safety tongs, safety tongs is arranged on the lower end of car frame upright, it is characterized in that, safety tongs is connected with overspeed protection device by shift mechanism, and overspeed protection device is arranged on the lifting rod top on the car roof and is connected with lifting rod; The upper end of described steel rope is connected on the floor of hoistway top, and its lower end is passed overspeed protection device and is connected with tightening device with safety tongs, and the lower end of tightening device is arranged on the pit ground, and steel rope is responsible for tensioning by tightening device.
Described overspeed protection device comprises pipe link, steel rope orienting sleeve, wind isolation board, conduit, wind collecting unit, air baffle, clamping balls, electric switch, the dumbbell shaped structure of described wind collecting unit for erectting, the upper and lower end face is the back taper exit skirt, in two bell-mouthed connection pipes of back taper, air baffle is set, wind collecting unit is connected with the steel rope orienting sleeve by conduit, the steel rope orienting sleeve is arranged on the pipe link, and pipe link and lifting rod, safety tongs are bonded assemblys; Be provided with wind isolation board with steel rope orienting sleeve bonded assembly conduit mouth end, be provided with clamping balls with wind collecting unit bonded assembly conduit mouth end, the centre of conduit is provided with electric switch.
Described wind isolation board and the air baffle that is arranged in the conduit is movable, and its movable thrust is the corresponding design-calculated of wind-force that imports with the wind collecting unit exit skirt.
Described steel rope orienting sleeve is that two ends are less than the clamping balls diameter up and down, and the centre is greater than the chamber shape structure of clamping balls diameter.
Described conduit is simple reverse " S " shape, is concavity down with the junction of wind collecting unit, and following recess is provided with clamping balls; Present convex with the junction of steel rope orienting sleeve, conduit is a straight pipe (being for adopting the overspeed protection device of gradient differences method), and the gradient at conduit serpentine middle part can be carried out corresponding design according to the requirement of friction speed.
Described conduit 124 is simple reverse " S " shape, is concavity down with the junction of wind collecting unit 125, and following recess is provided with clamping balls; Present convex with the junction of steel rope orienting sleeve, the middle part of conduit is one section overstriking pipeline section (being for adopting the overspeed protection device of dutycycle method).
Described tightening device is made of tensioning spring and connecting rod.Tensioning spring is installed between the connecting rod, and the elastic force of spring can carry out corresponding setting according to the requirement of different tensile forces.
The principle of work of elevator overspeed protecting device of the present invention is:
Moving air when utilizing the opening of bell mouth shape that elevator is moved is collected to (operation can both compile air up and down) in the wind collecting unit, and the air baffle that utilizes the blast of moving air will be arranged in the wind collecting unit is then pushed open.Because the variation of elevator speed can cause the variation of blast, when blast reached setting value, the blast of pushing air baffle open can continue to promote clamping balls, thereby the electric switch of depressing in the conduit cuts off safety return circuit.If elevator speed continues to increase, then blast can continue to increase, and promotes clamping balls and moves on along conduit; When elevator speed reached maximum set value, blast can promote the wind isolation board that clamping balls pushes open in the conduit and enter the steel rope orienting sleeve, stuck steel rope; At this moment, overspeed protection device can drive the lifting rod motion, lifts safety tongs.
The good effect of elevator overspeed protecting device of the present invention is:
(1) changes the structure and the installation site of elevator governor, can save the space of elevator(lift) machine room and the steel rope quantity of use;
(2) owing to adopted the structure of new overspeed protection device and tightening device, make on the volume of elevator overspeed protecting device forr a short time, not only saved the space, manufacturing cost and use cost also has tangible reduction;
(3) novel structure, simple, compact size enough provides the up-downgoing overspeed protection, and the prospect of applying is arranged.
Description of drawings
Accompanying drawing 1 is for being equipped with the structural representation of the elevator hoistways that has elevator governor now;
Accompanying drawing 2 is the structural representation that the elevator hoistways of elevator overspeed protecting device of the present invention is housed;
Accompanying drawing 3 is the structural representation of the overspeed protection device of employing gradient differences method;
Accompanying drawing 4 is the structural representation of the overspeed protection device of employing dutycycle method;
Accompanying drawing 5 is the structural representation of tightening device.
Label among the figure is respectively:
1, counterweight; 2, lift steel rope; 3, diversion sheave; 4, traction sheave;
5, velocity limiter; 6, steel rope; 7, lifting rod; 8, car;
9, safety tongs; 10, tension wheel; 11, pit ground; 12, overspeed protection device;
121, pipe link; 122, steel rope orienting sleeve; 123, wind isolation board; 124, conduit;
125, wind collecting unit; 126, air baffle; 127, clamping balls; 128, electric switch;
13, tightening device; 131, tensioning spring; 132, connecting rod; 14, hoistway top floor.
The specific embodiment
Provide the specific embodiment of elevator overspeed protecting device of the present invention below in conjunction with accompanying drawing, still, enforcement of the present invention is not limited to following embodiment.
Referring to accompanying drawing 2.A kind of elevator overspeed protecting device is by counterweight 1, lift the lifting part that steel rope 2, diversion sheave 3, traction sheave 4, lifting rod 7, car 8 constitute elevator; Constitute the overspeed protection system of elevator by steel rope 6, overspeed protection device 12, lifting rod 7, safety tongs 9 and tightening device 13.
Because the lifting of elevator part and utilize lifting rod to lift that the trigger theory of safety tongs is identical with existing elevator structure just to be repeated no more here.
Elevator overspeed protecting device of the present invention no longer adopts velocity limiter 5 and tension wheel 10 structures.Overspeed protection device 12 is arranged on above the sedan-chair top of car 8, is connected with lifting rod 7; Safety tongs 9 is arranged on the column lower end of car 8, also is connected with lifting rod 7; Tightening device 13 is arranged on pit ground 11; the upper end of steel rope 6 is fixed on the fixed mount of elevator hoistways top floor 14, and steel rope orienting sleeve 122 and safety tongs 9 that the overspeed protection device 12 on the car 8 is passed in the lower end of steel rope 6 are connected with tightening device 13.
Referring to accompanying drawing 3.Described overspeed protection device 12 comprises pipe link 121, steel rope orienting sleeve 122, wind isolation board 123, conduit 124, wind collecting unit 125, air baffle 126, clamping balls 127 and electric switch 128, wherein, steel rope orienting sleeve 122 be up and down two ends less than clamping balls 127 diameters, middle chamber shape structure greater than clamping balls 127 diameters, be arranged on the pipe link 121, pipe link 121 is connected with lifting rod 7; The dumbbell shaped structure of wind collecting unit 125 for erectting, its upper and lower end face is the back taper exit skirt, and air baffle 126 is set in two bell-mouthed connection pipes of back taper; Wind collecting unit 125 is connected with steel rope orienting sleeve 122 by conduit 124, with 124 mouthfuls of ends of steel rope orienting sleeve 122 bonded assembly conduits wind isolation board 123 is being set, with 124 mouthfuls of ends of wind collecting unit 125 bonded assembly conduits clamping balls 127 is being set, the centre of conduit 124 is provided with electric switch 128.
Wherein, the wind isolation board 123 and the air baffles 126 that are arranged in the conduit 124 are movable, and its movable thrust is that the wind-force that imports with wind collecting unit 125 exit skirts is corresponding designing.
General thickness before and after described conduit 124 calibers, be simple reverse " S " shape: be concavity down in junction with wind collecting unit 125, the clamping balls 127 of diameter less than caliber is set in recessed, and following concavity and the wind collecting unit 125 bonded assembly places of upwarping are provided with air baffle 126; Presenting convex with the junction of steel rope orienting sleeve 122, it is for adopting the overspeed protection device of gradient differences method that wind isolation board 123(is set at last convex and steel rope orienting sleeve 122 bonded assembly descending places).
Referring to accompanying drawing 4.Described conduit 124 also can be made reverse " S " shape that is simple, and different with accompanying drawing 3 structures is that the interlude of conduit 124 is one section overstriking pipeline section (being for adopting the overspeed protection device of dutycycle method).
The meaning of the different conduits 124 shown in accompanying drawing 3, the accompanying drawing 4 is: utilize the sense of motion of 124 pairs of clamping balls 127 of different conduits to lead, its principle is: 1. have certain gradient conduit 124, because the force-bearing situation difference of clamping balls 127 when different gradients position can utilize gradient difference that the position of clamping balls 127 is controlled.2. diverse location and have the conduit 124 of different tube diameters can produce different dutycycles when clamping balls 127 moves to diverse location, can utilize the thrusts of the different sizes that different empty accountings produce that the position of clamping balls 127 is controlled.
Because the difference of conduit 124 gradients (or caliber) causes the stressed difference of clamping balls 127 at conduit 124 diverse locations.When speed exceeded the speed of elevator setting, blast can promote clamping balls 127 and push down electric switch 128, cut off safety return circuit.And if the speed of elevator also continue to increase, then can cause blast to continue to strengthen, promote clamping balls 127 and move on, enter at last in the steel rope orienting sleeve 122, stuck steel rope 6 lifts safety tongs 9, makes elevator steadily or stop.
Referring to accompanying drawing 5.Tightening device 13 is made of tensioning spring 131 and connecting rod 132, and tensioning spring 131 is installed between the connecting rod 132, is used for tensioning steel rope 6, and the elastic force of spring 131 can carry out corresponding setting according to the requirement (or model of product) of different tensile forces; The upper end of connecting rod 132 connects steel rope 6, and the lower end of connecting rod 132 connects pit ground 11, and its effect is the tensile force that guarantees tensioning spring 131.
The above only is a preferred implementation of the present invention.Should be pointed out that those skilled in the art without departing from the inventive concept of the premise, can also make some improvements and modifications, still, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. elevator overspeed protecting device, contain counterweight (1), lift steel rope (2), diversion sheave (3), traction sheave (4), steel rope (6), lifting rod (7) and safety tongs (9), safety tongs (9) is arranged on the lower end of car (8) column, it is characterized in that, safety tongs (9) is connected with overspeed protection device (12) by shift mechanism, and overspeed protection device (12) is arranged on lifting rod (7) top on car (8) top and is connected with lifting rod (7); The upper end of described steel rope (6) is connected on the hoistway top floor (14); its lower end is passed overspeed protection device (12) and is connected with tightening device (13) with safety tongs (9); the lower end of tightening device (13) is arranged on the pit ground (11), and steel rope (6) is responsible for tensioning by tightening device (13).
2. elevator overspeed protecting device according to claim 1, it is characterized in that, described overspeed protection device (12) comprises pipe link (121), steel rope orienting sleeve (122), wind isolation board (123), conduit (124), wind collecting unit (125), air baffle (126), clamping balls (127), electric switch (128), the dumbbell shaped structure of described wind collecting unit (125) for erectting, the upper and lower end face is the back taper exit skirt, in two bell-mouthed connection pipes of back taper, air baffle (126) is set, wind collecting unit (125) is connected with steel rope orienting sleeve (122) by conduit (124), steel rope orienting sleeve (122) is arranged on the pipe link (121), pipe link (121) and lifting rod (7), safety tongs (9) connects; Be provided with wind isolation board (123) with steel rope orienting sleeve (122) bonded assembly conduit (a 124) mouthful end, be provided with clamping balls (127) with wind collecting unit (125) bonded assembly conduit (a 124) mouthful end, the centre of conduit (124) is provided with electric switch (128).
3. elevator overspeed protecting device according to claim 2; it is characterized in that; described wind isolation board (123) and the air baffle (126) that is arranged in the conduit (124) is movable, and its movable thrust is the corresponding design-calculated of wind-force that imports with wind collecting unit (125) exit skirt.
4. elevator overspeed protecting device according to claim 2 is characterized in that, described steel rope orienting sleeve (122) is that two ends are less than clamping balls (127) diameter up and down, and the centre is greater than the chamber shape structure of clamping balls (127) diameter.
5. elevator overspeed protecting device according to claim 2 is characterized in that, described conduit (124) is simple reverse " S " shape, is concavity down with the junction of wind collecting unit (125), and following recess is provided with clamping balls (127); Present convex with the junction of steel rope orienting sleeve (122), conduit is a straight pipe.
6. elevator overspeed protecting device according to claim 2 is characterized in that, described conduit (124) is simple reverse " S " shape, is concavity down with the junction of wind collecting unit (125), and following recess is provided with clamping balls (127); Present convex with the junction of steel rope orienting sleeve (122), the middle part of conduit is an overstriking pipeline section.
7. elevator overspeed protecting device according to claim 1 is characterized in that, described tightening device (13) is made of tensioning spring (131), connecting rod (132).
8. elevator overspeed protecting device according to claim 7 is characterized in that, described tensioning spring (131) is installed between the connecting rod (132), and the elastic force of spring (131) can carry out corresponding setting according to the requirement of different tensile forces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105343349A CN101973474B (en) | 2010-11-08 | 2010-11-08 | Elevator overspeed protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105343349A CN101973474B (en) | 2010-11-08 | 2010-11-08 | Elevator overspeed protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973474A true CN101973474A (en) | 2011-02-16 |
| CN101973474B CN101973474B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105343349A Active CN101973474B (en) | 2010-11-08 | 2010-11-08 | Elevator overspeed protective device |
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| CN (1) | CN101973474B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897632A (en) * | 2012-10-22 | 2013-01-30 | 日立电梯（中国）有限公司 | Elevator operation guide system |
| CN105947825A (en) * | 2016-06-23 | 2016-09-21 | 联盟电梯（苏州）有限公司 | Elevator speed limiting device |
| CN106185531A (en) * | 2016-10-09 | 2016-12-07 | 重庆能源职业学院 | A kind of fall arrest elevator hold-fast body |
| CN107531456A (en) * | 2015-04-27 | 2018-01-02 | 通力股份公司 | Equipment for the rate of tension of elevator traction component to be adjusted |
| CN108373090A (en) * | 2018-02-13 | 2018-08-07 | 福德斯电梯有限公司 | A kind of passenger lift limiter of speed security system |
| CN109502448A (en) * | 2018-12-27 | 2019-03-22 | 西威电梯江苏有限公司 | A kind of safety guard based on elevator |
| CN109650212A (en) * | 2019-01-21 | 2019-04-19 | 日立电梯（中国）有限公司 | Safety guard, elevator security control method and elevator |
| CN110921457A (en) * | 2019-11-15 | 2020-03-27 | 重庆特斯联智慧科技股份有限公司 | Elevator for intelligent building |
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| JP2000211841A (en) * | 1998-08-14 | 2000-08-02 | Inventio Ag | Device for stopping motion of elevator device |
| JP2002114465A (en) * | 2000-10-06 | 2002-04-16 | Hitachi Building Systems Co Ltd | Overspeed detection device of elevator |
| CN2539732Y (en) * | 2002-03-27 | 2003-03-12 | 涂翼民 | Falling-proof device for lift equipment |
| CN101085661B (en) * | 2006-04-28 | 2010-06-02 | 因温特奥股份公司 | Braking device for an elevator car and elevator system possessing the brake device |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000211841A (en) * | 1998-08-14 | 2000-08-02 | Inventio Ag | Device for stopping motion of elevator device |
| JP2002114465A (en) * | 2000-10-06 | 2002-04-16 | Hitachi Building Systems Co Ltd | Overspeed detection device of elevator |
| CN2539732Y (en) * | 2002-03-27 | 2003-03-12 | 涂翼民 | Falling-proof device for lift equipment |
| CN101085661B (en) * | 2006-04-28 | 2010-06-02 | 因温特奥股份公司 | Braking device for an elevator car and elevator system possessing the brake device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897632A (en) * | 2012-10-22 | 2013-01-30 | 日立电梯（中国）有限公司 | Elevator operation guide system |
| CN107531456A (en) * | 2015-04-27 | 2018-01-02 | 通力股份公司 | Equipment for the rate of tension of elevator traction component to be adjusted |
| CN107531456B (en) * | 2015-04-27 | 2019-12-20 | 通力股份公司 | Device for adjusting the tightness of an elevator traction means |
| CN105947825A (en) * | 2016-06-23 | 2016-09-21 | 联盟电梯（苏州）有限公司 | Elevator speed limiting device |
| CN106185531A (en) * | 2016-10-09 | 2016-12-07 | 重庆能源职业学院 | A kind of fall arrest elevator hold-fast body |
| CN106185531B (en) * | 2016-10-09 | 2018-07-31 | 重庆能源职业学院 | A kind of fall arrest elevator hold-fast body |
| CN108373090A (en) * | 2018-02-13 | 2018-08-07 | 福德斯电梯有限公司 | A kind of passenger lift limiter of speed security system |
| CN108373090B (en) * | 2018-02-13 | 2020-01-10 | 福德斯电梯有限公司 | Passenger elevator overspeed governor safety coefficient |
| CN109502448A (en) * | 2018-12-27 | 2019-03-22 | 西威电梯江苏有限公司 | A kind of safety guard based on elevator |
| CN109650212A (en) * | 2019-01-21 | 2019-04-19 | 日立电梯（中国）有限公司 | Safety guard, elevator security control method and elevator |
| CN110921457A (en) * | 2019-11-15 | 2020-03-27 | 重庆特斯联智慧科技股份有限公司 | Elevator for intelligent building |
| CN110921457B (en) * | 2019-11-15 | 2021-09-24 | 重庆特斯联智慧科技股份有限公司 | Elevator for intelligent building |
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| Publication number | Publication date |
|---|---|
| CN101973474B (en) | 2012-07-18 |
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