CN100408460C - Apparatus for protecting lifting overspeed of elevator - Google Patents
Apparatus for protecting lifting overspeed of elevator Download PDFInfo
- Publication number
- CN100408460C CN100408460C CNB2004100530574A CN200410053057A CN100408460C CN 100408460 C CN100408460 C CN 100408460C CN B2004100530574 A CNB2004100530574 A CN B2004100530574A CN 200410053057 A CN200410053057 A CN 200410053057A CN 100408460 C CN100408460 C CN 100408460C
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- bar
- slide
- elevator
- screw rod
- chute
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Abstract
The present invention discloses an elevator ascending overspeed protector. The aim is to provide the elevator ascending overspeed protector which has the advantages of simple structure and low cost. The present invention has a technical scheme main point that the present invention comprises a basic frame, a braking block, a prepressed spring, a slide groove, a locking mechanism, a slide shaft and a spring compressing mechanism, wherein a fixed shaft is arranged on the basic frame, and the lateral surface of the basic frame is provided with the symmetrical slide groove. The slide shaft is arranged on the slide groove and is pulled by the locking mechanism arranged on the basic frame, and a triggering mechanism is arranged on the locking mechanism. The prepressed spring is arranged between the slide shaft and the fixed shaft, and a restoring screw rod is arranged on the basic frame. The restoring screw rod orderly passes through the fixed shaft, the prepressed spring and the slide shaft, then the end part is provided with a raised part, and the braking block is arranged on the slide shaft.
Description
Technical field
The present invention relates to a kind of overspeed protection device, especially relate to a kind of protection device for over-speed ascending for elevator.
Background technology
At present, for the dual brake+velocity limiter mode of gearless machine, owing to act directly on traction sheave, or on the traction wheel shaft, meet the requirement of protection device for over-speed ascending.But for the towing machine that speed reduction gearing is arranged, act on the drg+velocity limiter mode on the high speed shaft, consider the inefficacy of speed reduction gearing, do not meet the requirement of protection device for over-speed ascending.Protection device for over-speed ascending for elevator at this situation mainly contains following 3 classes:
1, use up hypervelocity safety tongs+bidirectional speed limiter, by the action of safety tongs voussoir, the friction of voussoir and guide rail and self-locking are slowed down up hypervelocity car.
2, use counterweight safety+counterweight velocity limiter,, counterweight is slowed down,, thereby up car is slowed down by traction steel-cable by the action of counterweight safety voussoir.
3, use brake for towline of elevator, traction steel-cable is between 2 slippers of this drg, and during action, the slipper spacing is dwindled, and clamps traction steel-cable, produces friction force, and up car is slowed down.
In the 1st kind of scheme, need two devices to be used to clamp car guide rail, need do very big change to car frame.The application of common this scheme is mainly on the new clothes elevator, and when being used for old ladder and transforming, work capacity is very big.
In the 2nd kind of scheme, need configuration counterweight velocity limiter and counterweight tension wheel, and the counterweight guide rail must adopt solid guide rail, cost improves greatly.
In the 3rd kind of scheme,, a cover connecting rod mechanism just must be arranged, the corresponding increase of cost because principle of work is to rely between 2 slippers to move.And this matching requirements traction takes turns to this section of track adjusting wheel, and clamped hoist ropes has constant slope, otherwise this device can be interfered with towing machine.For example to wiring than the traction system that is 2:1, do not have track adjusting wheel usually, traction steel-cable vertically down, steel rope is very little from the towing machine gap, just can't arrange this device.So this scheme has certain limitation in use occasion.
Summary of the invention
The objective of the invention is to above-mentioned deficiency, propose a kind of protection device for over-speed ascending for elevator simple in structure, with low cost at prior art.
Above-mentioned purpose of the present invention is achieved through the following technical solutions: comprise pedestal, slipper, preloading spring, chute, lockout mechanism, slide-bar and length of spring compressed mechanism, described pedestal is provided with an anchor shaft, described pedestal side offers the chute of symmetry, and described slide-bar is set on the described chute; Described slide-bar is set at the lockout mechanism drawknot on the pedestal, and described lockout mechanism is provided with trigger mechanism; Between described slide-bar and described anchor shaft, described preloading spring is set; Described pedestal is provided with the screw rod that resets, and is provided with a lug boss in its end after the described screw rod that resets passes described anchor shaft, preloading spring and described slide-bar successively; Described slide-bar is provided with described slipper, and described slipper acts directly on rope sheave and the hoist ropes.
Be provided with a thrust baring between the screw rod lug boss at described slide-bar and described resetting; Described slipper is provided with the friction material liner plate, and described friction material liner plate is provided with groove, and the hoist ropes on the slot pitch of described groove and the size of groove and the elevator rope sheave is complementary; One section vertical setting of described chute, another section becomes 15 degree with horizontal surface---and 30 degree are obliquely installed; The described screw rod that resets, anchor shaft, preloading spring form an angle with vertical direction in that described slide-bar contact is described when being obliquely installed detent surface, in that described slide-bar contact is described when vertically detent surface being set, and the vertical direction unanimity; Described preloading spring is 2, is separately positioned between described slide-bar and the described anchor shaft; The described screw rod that resets is 2, passes described anchor shaft, preloading spring and described slide-bar respectively; Described lockout mechanism is a latch hook that is fixed on described pedestal and can rotates, the described slide shaft of described latch hook drawknot; Described trigger mechanism is a brake cable, and the point of connection of described brake cable and described latch hook triggers the arm of force away from the center of turn of described latch hook to increase.
Compare with prior art, the present invention has following beneficial effect: simple in structure, cost is lower, as a discrete assembly in the whole ladder of elevator, is easy to make and install.Stop mechanism is simple and reliable, acts directly on rope sheave and the hoist ropes, has omitted and has decided slipper and connecting rod mechanism.This stop mechanism is installed in the oblique upper of rope sheave, rationally utilizes the survival space of rope sheave top, can additive incrementation machine room clear height, and it is unrestricted, applied widely that hoist ropes is hung gradient.This device can be installed on the new clothes elevator, can use easily again on the technological change of existing elevator.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is that the present invention is provided with scheme drawing in elevator(lift) machine room;
Fig. 2 is the front view of the present invention at reset position;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is the B-B cutaway view of Fig. 3.
Wherein: 1 is rope sheave; 2 is stop mechanism; 3 is the stop mechanism link span; 4 is machine bed; 5 is track adjusting wheel; 6 is car; 7 is hoist ropes; 8 is counterweight; 9 are the screw rod that resets; 10 is riser; 11 is slipper; 12 is the friction material liner plate; 13 is stay bearing plate; 14 is tie bolt; 15 is side plate; 16 is length of spring compressed mechanism; 17 is spring; 18 is slide-bar; 19 is the slipper Connection Block; 20 is the latch hook frame; 21 is brake cable; 22 is latch hook; 23 is anchor shaft: 24 are lockout mechanism; 25 is chute; 26 is thrust baring.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Installation site of the present invention as shown in Figure 1, the setting of stop mechanism 2 in the whole ladder of elevator.In elevator hoistways, hang car 6 by an elevator rope 7 and make perpendicular movement along car guide rail, one end of elevator rope 7 is connected the top of car 6, begin upwards to enter machine room from here always and walk around rope sheave 1, walk around track adjusting wheel 5 again and go out machine room downwards, extend to counterweight 8 tops, the other end of hoist ropes 7 always, be therewith fixed, counterweight 8 is made perpendicular movement along the counterweight guide rail.
Fig. 2 is the front view of the present invention at reset position.By be fixed on slipper Connection Block 19 on the slide-bar 18, with slipper 11 and friction material liner plate 12, and existing elevator rope sheave 1 and hoist ropes 7 are formed brake system.Spring 17 drawknots that slide-bar 18 is fixed by the top, and hook by lockout mechanism 24, reset by length of spring compressed mechanism 16.Spring 17 has 2, lays respectively at lockout mechanism 24 both sides.Riser 10 is connected with side plate 15 screws.Latch hook frame 20 is fixed on the riser 10.
As Fig. 2, Fig. 3, Fig. 4,25 1 sections vertical settings of chute, another section becomes 15 degree with horizontal surface---and 30 degree are obliquely installed; Reset screw rod 9, anchor shaft 23, preloading spring 17 when slide-bar 18 contacts are obliquely installed chute 25 surfaces, form an angle with vertical direction; Reset screw rod 9, anchor shaft 23, preloading spring 17 when slide-bar 18 contacts vertically are provided with chute 25 surfaces, consistent with vertical direction.
Fig. 3 represents that the A of stop mechanism shown in Figure 22 is to view.Stop mechanism 2 fixing in machine room is by two stay bearing plates 13, is fixed on the stop mechanism link span 3.Side plate 15 couples together by tie bolt 14 and stay bearing plate 13.Slide-bar 18 and described resetting are provided with a thrust baring 26 between screw rod 9 lug bosses.One removable friction material liner plate 12 is arranged above the slipper 11, and this friction material has suitable friction coefficient.Slide-bar 18 moves down at the effect lower edge of spring force side plate 15 upper hopper chutes 25.
When the ascending for elevator hypervelocity, the bidirectional speed limiter action, heart yearn in pulling and the latch hook 22 bonded assembly brake cables 21 upwards spurs latch hook 22, discharges slide-bar 18, slide-bar 18 is under spring 17 effects, chute 25 along side plate 15 moves down, and drives slipper Connection Block 19 and connected slipper 11, moves to rope sheave 1 and hoist ropes 7, rely on friction between friction material liner plate 12 and rope sheave 1 and the hoist ropes 7, reach the purpose that the hypervelocity car is slowed down.
B-B cutaway view in Fig. 4 presentation graphs 3, lockout mechanism 24 and length of spring compressed mechanism 16 during corresponding to stop mechanism 2 reset positions.
Length of spring compressed mechanism 16 is made up of the screw rod 9 that resets, anchor shaft 23.During at reset position, the screw rod 9 that resets has certain drift angle from vertical direction at stop mechanism 2, and reset screw rod 9 bottoms and slide-bar 18 have certain interval, in order to guarantee the stroke after slide-bar 18 discharges.Resetting after the action need to screw out the screw rod 9 that resets, and slide-bar 18 is moved up along chute, and compression spring 17 fills and adds energy, until latch hook 22 can pin till the slide-bar 18.Screw rod 9 cycles that will reset again at last get final product.
Claims (6)
1. protection device for over-speed ascending for elevator, comprise pedestal, slipper (11), preloading spring (17), chute (25), lockout mechanism (24), slide-bar (18) and length of spring compressed mechanism (16), it is characterized in that: described pedestal is provided with an anchor shaft (23), described pedestal side offers the chute (25) of symmetry, and described slide-bar (18) is set on the described chute (25); Described slide-bar (18) is set at lockout mechanism (24) drawknot on the pedestal, and described lockout mechanism (24) is provided with trigger mechanism; Between described slide-bar (18) and described anchor shaft (23), described preloading spring (17) is set; Described pedestal is provided with the screw rod that resets (9), and the described screw rod that resets (9) passes described anchor shaft (23), preloading spring (17) and described slide-bar (18) back successively and is provided with a lug boss in its end; Described slide-bar (18) is provided with described slipper (11), and described slipper (11) acts directly on rope sheave (1) and the hoist ropes (7).
2. protection device for over-speed ascending for elevator according to claim 1 is characterized in that: be provided with a thrust baring (26) between described slide-bar (18) and the described screw rod that resets (9) lug boss.
3. protection device for over-speed ascending for elevator according to claim 1; it is characterized in that: described slipper (11) is provided with friction material liner plate (12); described friction material liner plate (12) is provided with groove, and the hoist ropes (7) on the slot pitch of described groove and the size of groove and the elevator rope sheave (1) is complementary.
4. protection device for over-speed ascending for elevator according to claim 1 is characterized in that: (25) one sections vertical settings of described chute, and another section becomes 15 degree with horizontal surface---and 30 degree are obliquely installed; The described screw rod that resets (9), anchor shaft (23), preloading spring (17) are in that described slide-bar (18) contact is described when being obliquely installed chute (25) surface, form an angle with vertical direction, in that described slide-bar (18) contact is described when chute (25) surface vertically is set, the vertical direction unanimity.
5. according to any one described protection device for over-speed ascending for elevator in the claim 1 to 4, it is characterized in that: described preloading spring (17) is 2, is separately positioned between described slide-bar (18) and the described anchor shaft (23); The described screw rod that resets (9) is 2, passes described anchor shaft (23), preloading spring (17) and described slide-bar (18) respectively.
6. according to any one described protection device for over-speed ascending for elevator in the claim 1 to 4, it is characterized in that: described lockout mechanism (24) is a latch hook (22) that is fixed on described pedestal and can rotates, the described slide-bar of described latch hook (22) drawknot; Described trigger mechanism is a brake cable, and the point of connection of described brake cable and described latch hook (22) triggers the arm of force away from the center of turn of described latch hook (22) to increase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100530574A CN100408460C (en) | 2004-07-22 | 2004-07-22 | Apparatus for protecting lifting overspeed of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100530574A CN100408460C (en) | 2004-07-22 | 2004-07-22 | Apparatus for protecting lifting overspeed of elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724330A CN1724330A (en) | 2006-01-25 |
| CN100408460C true CN100408460C (en) | 2008-08-06 |
Family
ID=35923987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100530574A Expired - Fee Related CN100408460C (en) | 2004-07-22 | 2004-07-22 | Apparatus for protecting lifting overspeed of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100408460C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367129B (en) * | 2011-09-28 | 2014-07-09 | 快意电梯股份有限公司 | Combined type overspeed protective device for elevator |
| CN117303159B (en) * | 2023-11-29 | 2024-04-02 | 辛格林电梯有限公司 | Active safety elevator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5101937A (en) * | 1991-06-03 | 1992-04-07 | Burrell Michael P | Self centering elevator cable safety brake |
| US5228540A (en) * | 1992-07-24 | 1993-07-20 | Hollister-Whitney Elevator Corp. | Elevator car brake with shoes actuated by springs |
| WO2002053485A1 (en) * | 2000-12-28 | 2002-07-11 | Mitsubishi Denki Kabushiki Kaisha | Emergency brake device of elevator |
| CN2517718Y (en) * | 2001-11-23 | 2002-10-23 | 中国建筑科学研究院建筑机械化研究分院 | Elevator towing rope brake |
| WO2003089354A1 (en) * | 2002-04-19 | 2003-10-30 | Mitsubishi Denki Kabushiki Kaisha | Emergency brake device for elevator |
| CN1469835A (en) * | 2000-10-21 | 2004-01-21 | 起产情报System株式会社 | Elevator rope braking system |
-
2004
- 2004-07-22 CN CNB2004100530574A patent/CN100408460C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5101937A (en) * | 1991-06-03 | 1992-04-07 | Burrell Michael P | Self centering elevator cable safety brake |
| US5228540A (en) * | 1992-07-24 | 1993-07-20 | Hollister-Whitney Elevator Corp. | Elevator car brake with shoes actuated by springs |
| CN1469835A (en) * | 2000-10-21 | 2004-01-21 | 起产情报System株式会社 | Elevator rope braking system |
| WO2002053485A1 (en) * | 2000-12-28 | 2002-07-11 | Mitsubishi Denki Kabushiki Kaisha | Emergency brake device of elevator |
| CN2517718Y (en) * | 2001-11-23 | 2002-10-23 | 中国建筑科学研究院建筑机械化研究分院 | Elevator towing rope brake |
| WO2003089354A1 (en) * | 2002-04-19 | 2003-10-30 | Mitsubishi Denki Kabushiki Kaisha | Emergency brake device for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1724330A (en) | 2006-01-25 |
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Granted publication date: 20080806 Termination date: 20190722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |