CN203411197U - Anti-falling safety device of construction lift - Google Patents
Anti-falling safety device of construction lift Download PDFInfo
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- CN203411197U CN203411197U CN201320435792.6U CN201320435792U CN203411197U CN 203411197 U CN203411197 U CN 203411197U CN 201320435792 U CN201320435792 U CN 201320435792U CN 203411197 U CN203411197 U CN 203411197U
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- centrifugal
- safety device
- gear
- falling safety
- cone
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Abstract
The utility model discloses an anti-falling safety device of a construction lift. The anti-falling safety device comprises a gear, a centrifugal type speed limiting device and a conical-drum-shaped brake, wherein the centrifugal type speed limiting device mainly comprises a centrifugal seat, a centrifugal block, a pulling rod, a pressing spring, a spring piece and a pressing plate; the conical-drum-shaped brake comprises a shell, a friction ring, a cone, a disc-shaped spring, a pressing nut and a rotation-stopping ring; the front end and the rear end of the conical-drum-shaped brake are respectively provided with a large end cover and a rear cover which are fixedly connected with the shell. The anti-falling safety device is characterized in that the gear is a connecting shaft gear and is connected with the centrifugal type speed limiting device by a sealing roll bearing; the connecting shaft gear is directly meshed with a guide-rail frame rack and the number of teeth is less than 15. The anti-falling safety device disclosed by the utility model has the advantages that the oiling maintenance can be avoided in the effective use period, the needed brake torque is less, the self weight of the shape is lighter, the operating smoothness is improved, the speed adjusting range is expanded towards a low-speed area, and the application range is wide.
Description
Technical field
The utility model belongs to technical field of engineering machinery, is specifically related to a kind of building hoist anti-falling safety device.
Background technology
Why building hoist can move in safe manned loading, is mainly because it has been equipped with anti-falling safety device, has improved the safety factor of equipment operation.What at construction site, be widely used at present is the building hoist of rack-and-gear transmission, and the Anti-falling safety device for construction lift of outfit is generally gear cone cydariform gradual anti-falling safety device.
The main device that forms gear cone cydariform gradual anti-falling safety device has: gear, centrifugal speed-limit device and cone drum brake.The gear volume of prior art Anti-falling safety device for construction lift is large, and teeth number is many, and when it is braked, required brake torque is large, and speed variable range is narrow, can not better meet the needs of application range of products and safety performance.Meanwhile, generally establish plain bearing and rotary gear shaft joins on the large end cap of Anti-falling safety device for construction lift, plain bearing needs frequent oiling to safeguard, maintenance cost is high, and the improved cry of customer requirements is strong.
Utility model content
The purpose of this utility model is to provide a kind of maintenance of exempting to refuel, and product braking torque makes its safety more reliable, and speed-limit device speed adjustable range is large and profile deadweight is lighter and handier, the Anti-falling safety device for construction lift that wheel and rack directly meshes.
The technical solution adopted in the utility model is: a kind of Anti-falling safety device for construction lift, comprises gear, centrifugal speed-limit device and cone drum brake; Centrifugal speed-limit device is mainly by centrifugal seat and centrifugal-block, pull bar, and stage clip, spring leaf and pressing plate form; Cone drum brake is by shell, friction ring, cone, disk spring, hold-down nut, hinders the formation of turn-taking, the front and back ends of cone drum brake is respectively equipped with large end cap and the bonnet being fixedly connected with shell, it is characterized in that described gear is stem gear, on large end cap, establish Packed ball bearing of main shaft, the rotating shaft of stem gear is connected with centrifugal speed-limit device by the ball bearing of main shaft of sealing.
The teeth number of described stem gear is less than 15 and directly mesh with guide rail bracket tooth bar.
The utility model stem gear and guide rail bracket tooth bar directly mesh, the teeth number of stem gear is less than 15, and the required braking torque of safety is little, can accomplish that compared to existing technology profile deadweight is lighter and handier, the unbalanced moment that has reduced rotatable parts, has improved running stability.Speed variable range is expanded to low regime, applied range.
The utility model adopts the ball bearing of main shaft of sealing, in effective operating cycles of safety, can exempt to refuel and safeguard, has saved human and material resources, meets the requirement of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is A-A cutaway view in Fig. 1;
Fig. 3 is the schematic diagram that the utility model stem gear and guide rail bracket tooth bar directly mesh;
Description of reference numerals: 1 shell, 2 large end caps, the ball bearing of main shaft of 3 sealings, 4 stem gears, 5 friction rings, 6 cones, 7 centrifugal speed-limit devices, 71 centrifugal seat, 72 centrifugal-blocks, 73 spring leafs, 74 pressing plates, 75 pull bars, stage clip 76,8 bearings, 9 disk springs, 10 hold-down nutes, 11 bonnets, 12 cover caps, resistance turn-takes 13.
The specific embodiment
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
As shown in Figure 1 to Figure 3, Anti-falling safety device for construction lift, consists of gear 4, centrifugal speed-limit device 7 and cone drum brake;
Centrifugal speed-limit device 7 mainly consists of centrifugal seat 71 and centrifugal-block 72, and centrifugal-block 72 is fixed with centrifugal seat 71 by being provided with the pull bar 75 of stage clip 76 above, and the end of centrifugal-block 72 is provided with spring leaf 73 and pressing plate 74.
Bore drum brake by shell 1, cone 6, disk spring 9, hold-down nut 10, hinders 13 formations of turn-taking, and between shell 1 and cone 6, is provided with friction ring 5, and friction ring 5 is fixed on the inwall of shell 1;
The front end of cone drum brake is provided with large end cap 2, and rear end is provided with bonnet 11, is fixedly connected with respectively with shell 1; Shell 1 is provided with cover cap 12 near the downside of bonnet end.
Large end cap 2 is provided with the ball bearing of main shaft 3 of two sealings, and centrifugal speed-limit device 7 is arranged in cone 6, and the rotating shaft of stem gear 4 is connected with centrifugal speed-limit device 7 by the ball bearing of main shaft 3 of two band sealings; The other end of centrifugal speed-limit device 7 rotating shafts is fixed in the cone end of cone 6 by bearing 8;
The utility model stem gear 4 directly meshes with guide rail bracket tooth bar, and the teeth number of stem gear 4 is less than 15, and stem gear 4 can accomplish that profile deadweight is lighter and handier compared to existing technology, has reduced the unbalanced moment of rotatable parts, has improved running stability.
The principle of work of this product: when the cage of building hoist falls because of fault, the centrifugal-block 72 of anti-falling safety device, by the increase along with weight gliding acceleration, also increases its centnifugal force producing gradually.When the speed of weight downslide reaches certain value, centrifugal-block 72 completes and opens action under the effect of centnifugal force, head in the uniform wherein groove of cone 6 inner chambers, make cone 6 produce rotation, on centrum 6, screw thread constantly screws in hold-down nut 10, and the displacement of hold-down nut 10 on centrum 6 screw threads produces pressure to disk spring 9, on disk spring 9, antagonistic force makes the conical surface of centrum 6 constantly increase pressure in the friction ring 5 with shell 1 produces friction process, thereby plays brake action.
Claims (2)
1. an Anti-falling safety device for construction lift, comprises gear, centrifugal speed-limit device and cone drum brake; Centrifugal speed-limit device is mainly by centrifugal seat and centrifugal-block, pull bar, and stage clip, spring leaf and pressing plate form; Cone drum brake is by shell, friction ring, cone, disk spring, hold-down nut, hinders the formation of turn-taking, the front and back ends of cone drum brake is respectively equipped with large end cap and the bonnet being fixedly connected with shell, it is characterized in that: described gear is stem gear, on large end cap, establish Packed ball bearing of main shaft, the rotating shaft of stem gear is connected with centrifugal speed-limit device by the ball bearing of main shaft of sealing.
2. a kind of Anti-falling safety device for construction lift according to claim 1, is characterized in that: the teeth number of described stem gear is less than 15 and directly mesh with guide rail bracket tooth bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435792.6U CN203411197U (en) | 2013-07-22 | 2013-07-22 | Anti-falling safety device of construction lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435792.6U CN203411197U (en) | 2013-07-22 | 2013-07-22 | Anti-falling safety device of construction lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203411197U true CN203411197U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320435792.6U Expired - Lifetime CN203411197U (en) | 2013-07-22 | 2013-07-22 | Anti-falling safety device of construction lift |
Country Status (1)
| Country | Link |
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| CN (1) | CN203411197U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818793A (en) * | 2014-02-25 | 2014-05-28 | 上海市建筑科学研究院科技发展总公司 | Low-speed anti-falling safety device |
| CN110093476A (en) * | 2019-06-18 | 2019-08-06 | 潍坊峻林冶金工程技术有限公司 | A kind of converter oxygen gun lift cart falling-proof safety device |
| CN111942989A (en) * | 2020-08-24 | 2020-11-17 | 广厦建设集团有限责任公司 | Construction elevator security protection device for construction |
| CN112093615A (en) * | 2020-09-17 | 2020-12-18 | 罗跃红 | Multistage speed limit anti-falling device of construction elevator |
| CN114408695A (en) * | 2021-12-08 | 2022-04-29 | 上海市建筑科学研究院科技发展有限公司 | Manual uniform-speed descending speed limiting mechanism for construction elevator |
-
2013
- 2013-07-22 CN CN201320435792.6U patent/CN203411197U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818793A (en) * | 2014-02-25 | 2014-05-28 | 上海市建筑科学研究院科技发展总公司 | Low-speed anti-falling safety device |
| CN103818793B (en) * | 2014-02-25 | 2016-01-27 | 上海市建筑科学研究院科技发展有限公司 | A kind of low speed anti-falling safety device |
| CN110093476A (en) * | 2019-06-18 | 2019-08-06 | 潍坊峻林冶金工程技术有限公司 | A kind of converter oxygen gun lift cart falling-proof safety device |
| CN111942989A (en) * | 2020-08-24 | 2020-11-17 | 广厦建设集团有限责任公司 | Construction elevator security protection device for construction |
| CN111942989B (en) * | 2020-08-24 | 2021-07-23 | 广厦建设集团有限责任公司 | Construction elevator security protection device for construction |
| CN112093615A (en) * | 2020-09-17 | 2020-12-18 | 罗跃红 | Multistage speed limit anti-falling device of construction elevator |
| CN114408695A (en) * | 2021-12-08 | 2022-04-29 | 上海市建筑科学研究院科技发展有限公司 | Manual uniform-speed descending speed limiting mechanism for construction elevator |
| CN114408695B (en) * | 2021-12-08 | 2023-07-14 | 上海市建筑科学研究院科技发展有限公司 | Manual uniform descending speed limiting mechanism for construction lifter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |