CN201678330U - Anti-falling safety device for construction elevator - Google Patents
Anti-falling safety device for construction elevator Download PDFInfo
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- CN201678330U CN201678330U CN2010200333280U CN201020033328U CN201678330U CN 201678330 U CN201678330 U CN 201678330U CN 2010200333280 U CN2010200333280 U CN 2010200333280U CN 201020033328 U CN201020033328 U CN 201020033328U CN 201678330 U CN201678330 U CN 201678330U
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- centrifugal
- safety
- seat
- lateral register
- register device
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Abstract
The utility model relates to an anti-falling safety device for a construction elevator. The device comprises a shell, a gear shaft, a centrifugal block, a draw hook, a centrifugal seat, a speed regulating spring, a braking drum, a friction plate, a brake spring and a lateral positioning device, wherein the gear shaft is engaged with a rack; and the lateral positioning device is arranged on two side faces of the centrifugal seat or in the centrifugal seat so as to position the centrifugal block and consists of a positioning pin and a fixed connecting piece. The lateral positioning device is arranged at a position, which is matched with the centrifugal block, of the centrifugal seat to limit lateral displacement of the lateral positioning device so as to ensure the stability of the acting speed of the safety device. After the technology is adopted, the acting speed of the safety device can be stabilized within 3 percent. The appearance and the structure of the centrifugal seat are modified, so that the unbalanced moment of a rotating component is reduced and the running stability is enhanced. The appearance and the structure of the centrifugal block are modified and processing technology is adjusted, so that the position of the axle center of the rotating component is balanced well under the condition that the dead weight of a part is not increased remarkably, the unbalanced moment is counteracted and vibration and noise during running are reduced.
Description
Technical field
The utility model relates to building hoist, the gradual anti-falling safety device by the rack-and-gear transmission on particularly a kind of building hoist.
Background technology
Anti-falling safety device is a most important safety guard in the building hoist; development along with building construction technology; pay attention to day by day to building hoist and safety guard thereof; the further raising of operating needs; the problem of original anti-falling safety device aspect responsiveness and operation stability is more and more outstanding; for stability and the reliability that improves the construction hoist falling-proof safety, guarantee the safe handling of elevator, be necessary the structure and the manufacture craft of anti-falling safety device are improved.
Existing anti-falling safety device has following point:
1, centrifugal lacks lateral register, and safety responsiveness error is big.
During the operation of existing safety by with guide rail bracket on the tooth bar gears in mesh drive centrifugal rotation, centrifugal centnifugal force and speed controlled spring pretension equilibrium of forces, responsiveness with the control safety, when opening for centrifugal, being arranged on the centrifugal total position-limiting spring leaf of end intermediate groove props up centrifugal, make it remain on open position, prevent to return automatically and cause braking failure because of centrifugal.Centrifugal of original safety lacks the lateral register device, centrifugal in safety carrying or operational process side travel may take place, cause change or centrifugal end intermediate groove of safety responsiveness action of the spring position to contact the generation friction force with position-limiting spring leaf, influence the responsiveness of safety.Evidence, these situations are major causes of safety responsiveness error, can reach 5%～10% in the low speed safety, and the single motion speed permissible error of safety standard code only are 7%.This shows that centrifugal side-friction force with position-limiting spring leaf obviously influenced the stability and the reliability of safety action.
2, the statical equilibrium of rotatable parts is not considered in design, galloping, and noise is big.
Centrifugal of existing safety rotates with the centrifugal seat that is installed on the sun gear, safety is under normal operation, there is not relative motion between centrifugal and the centrifugal seat, because of rotating speed not high, do not need to consider the dynamic equilibrium problems of tumbler, but the statical equilibrium of tumbler there is bigger influence to running stability, the noise of safety.Original safety is owing to reasons such as centrifugal structure, processing technologys, and the rotatable parts of being made up of parts such as centrifugal and centrifugal seat exist bigger unbalanced moment to center of turn, have reduced the stationarity of safe operation.
In view of this, the utility model aims to provide a kind of gradual anti-falling safety device by the rack-and-gear transmission.
The utility model content
The purpose of this utility model provides a kind of construction hoist falling-proof safety; be used for the fall arrest protection of gear rack type construction elevator; improved the structure of original safety; solved the problem that prior art exists at aspects such as responsiveness stability, running stability effectively, made the more safe and reliable purpose of building hoist to reach.
Technical solution of the present utility model is as follows:
A kind of construction hoist falling-proof safety, comprise housing, with tooth bar ingear tooth axle, centrifugal, drag hook, centrifugal seat, speed setting spring, brake wheel, friction lining and retarding spring, also comprise the lateral register device, be arranged on the two side faces of centrifugal seat or the inside of centrifugal seat, to locate centrifugal;
Described lateral register device is made up of locating dowel pin and fixed connecting piece.
Go up the groove that matches with the lateral register device with the setting of lateral register device correspondence position for described centrifugal.
Described centrifugal two ends are same circular arc, and the length of two ends circular arc makes centrifugal seat match with centrifugal.
Fixed connecting piece in the described lateral register device is a screw.
Fixed connecting piece in the described lateral register device is a block.
Set up centrifugal lateral register device on the centrifugal seat of the present utility model, with stability and safety device responsiveness.Centrifugal inhibiting device of the present utility model be by setting up the side travel of centrifugal of lateral register device restriction with centrifugal cooperation place on centrifugal seat, thereby guarantee the stability of safety responsiveness.After adopting present technique, the responsiveness of safety can be stabilized in 3%.
By revising centrifugal seat profile and structure, reduce the unbalanced moment of rotatable parts in the utility model, improve running stability.The utility model by change centrifugal the profile structure with adjust processing technology, under the situation that does not obviously increase the part deadweight preferably balance the shaft core position of rotatable parts, offset unbalanced moment, reduced operating vibration and noise.
The utility model makes it compared with prior art owing to adopted above technical scheme, has following advantage:
1, the responsiveness of construction hoist falling-proof safety of the present utility model is stable, through test, adopts the responsiveness error of the safety of present technique can reduce by 2%～7%, and the safety responsiveness is low more, uses the effect of present technique obvious more.
2, construction hoist falling-proof safety of the present utility model can reduce the operating vibration and noise of safety, by statistics, utilizes the probability of the safety operation generation abnormal sound of present technique can reduce by 45%.
Description of drawings
Fig. 1 is the axial cutaway view of a kind of construction hoist falling-proof safety of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
Number in the figure:
1 is centrifugal, and 2 is drag hook, and 3 is centrifugal seat, and 4 are speed adjustment spring, and 5 is the lateral register device.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Referring to Fig. 1 to Fig. 3, a kind of construction hoist falling-proof safety of the present utility model be equipped with housing, with tooth bar ingear tooth axle, centrifugal 1, drag hook 2, centrifugal seat 3, speed setting spring 4, lateral register device 5, brake wheel, friction lining and retarding spring.
Centrifugal 1 two ends are same circular arc, and the length of two ends circular arc makes centrifugal seat 3 cooperate the whole rotatable parts in back to reach statical equilibrium with centrifugal 1.
The utility model is the improvement to construction hoist falling-proof safety structure and performance, makes construction hoist falling-proof safety responsiveness stable, improves running stability, and its embodiment is as follows:
As shown in Figure 1, the utility model is to the improvement of safety responsiveness stability.Be installed on the centrifugal seat 3 by drag hook 2 for centrifugal 1, the precompressed compression that drag hook 2 is adjusted spring 4 by speed hooks centrifugal 1, and when centrifugal seat 3 rotating speeds increased, the centnifugal force on centrifugal 1 increased, the precompressed compression that overcomes speed adjustment spring 4 for centrifugal 1 is outwards thrown away, and excites the safety action.For avoiding centrifugal 1 side travel to cause safety responsiveness error, centrifugal lateral register device 5 is set, this device can be made of parts such as straight pin, elastic cylindrical pin or screws.The position that is provided with of lateral register device 5 can be at centrifugal 1 two side faces.Referring to Fig. 2, also can be arranged on other correct positions in the centrifugal width range according to the structure needs.Referring to Fig. 3, should on centrifugal 1, offer the groove that adapts with lateral register device 5 sizes when adopting Fig. 3 mode with lateral register device 5 corresponding positions, by groove and cooperating of lateral register device 5 stopping centrifugal side travel, this technology can effectively improve the stability of safety responsiveness.
As shown in Figure 2, the utility model is to the improvement of safety running stability.Centrifugal 1 rotatable parts of forming with centrifugal seat 3 parts such as grade exist bigger unbalanced moment to center of turn, cause vibration and abnormal sound in the safety operational process.Label 3 among Fig. 3 is the centrifugal seat after improving, and the circular arc of same circle is adopted at these centrifugal seat 3 two ends, the convenient manufacturing, and under the basic unmodified situation of total weight, obtain statical equilibrium effect preferably, improve traveling comfort.
In summary, construction hoist falling-proof safety of the present utility model has following advantage:
By on centrifugal seat, setting up the side travel of centrifugal of lateral register device restriction, thereby guarantee the stability of safety responsiveness with centrifugal cooperation place.After adopting present technique, the responsiveness of safety can be stabilized in 3%.By revising centrifugal seat profile and structure, reduce the unbalanced moment of rotatable parts, improve running stability.By change centrifugal profile structure with adjust processing technology, under the situation that does not obviously increase the part deadweight preferably balance the shaft core position of rotatable parts, offset unbalanced moment, reduced operating vibration and noise.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim the variation of the foregoing description, modification etc.
Claims (5)
1. construction hoist falling-proof safety, comprise housing, with tooth bar ingear tooth axle, centrifugal, drag hook, centrifugal seat, speed setting spring, brake wheel, friction lining and retarding spring, it is characterized in that: also comprise the lateral register device, be arranged on the two side faces of centrifugal seat or the inside of centrifugal seat, to locate centrifugal;
Described lateral register device is made up of locating dowel pin and fixed connecting piece.
2. construction hoist falling-proof safety as claimed in claim 1 is characterized in that: go up the groove that matches with the lateral register device with the setting of lateral register device correspondence position for described centrifugal.
3. construction hoist falling-proof safety as claimed in claim 1 is characterized in that: described centrifugal two ends are same circular arc, and the length of two ends circular arc makes centrifugal seat match with centrifugal.
4. construction hoist falling-proof safety as claimed in claim 1 is characterized in that: the fixed connecting piece in the described lateral register device is a screw.
5. construction hoist falling-proof safety as claimed in claim 1 is characterized in that: the fixed connecting piece in the described lateral register device is a block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200333280U CN201678330U (en) | 2010-01-21 | 2010-01-21 | Anti-falling safety device for construction elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200333280U CN201678330U (en) | 2010-01-21 | 2010-01-21 | Anti-falling safety device for construction elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678330U true CN201678330U (en) | 2010-12-22 |
Family
ID=43343383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200333280U Expired - Lifetime CN201678330U (en) | 2010-01-21 | 2010-01-21 | Anti-falling safety device for construction elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201678330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379792A (en) * | 2016-12-05 | 2017-02-08 | 顾明明 | Anti-falling protector of construction elevator |
| CN106639447A (en) * | 2016-12-31 | 2017-05-10 | 郑俭余 | Lifting anti-falling device |
| CN107954384A (en) * | 2017-10-20 | 2018-04-24 | 中国建筑科学研究院建筑机械化研究分院 | A kind of Self-resetting anti-dropping safety device |
-
2010
- 2010-01-21 CN CN2010200333280U patent/CN201678330U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379792A (en) * | 2016-12-05 | 2017-02-08 | 顾明明 | Anti-falling protector of construction elevator |
| CN106639447A (en) * | 2016-12-31 | 2017-05-10 | 郑俭余 | Lifting anti-falling device |
| CN106639447B (en) * | 2016-12-31 | 2023-11-03 | 金华市西比特立体车库有限公司 | Lifting anti-falling device |
| CN107954384A (en) * | 2017-10-20 | 2018-04-24 | 中国建筑科学研究院建筑机械化研究分院 | A kind of Self-resetting anti-dropping safety device |
| CN107954384B (en) * | 2017-10-20 | 2019-04-05 | 中国建筑科学研究院建筑机械化研究分院 | A kind of Self-resetting anti-dropping safety device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SCIENCE AND TECHNOLOGY DEVELOPMENT COMPANY OF SRIB Free format text: FORMER NAME: SCI-TECH DEVELOPMENT CORP., SHANGHAI CITY INST. OF BUILDING SCIENCE |
|
| CP03 | Change of name, title or address |
Address after: 200032 Shanghai city Xuhui District Wanping Road No. 75 Patentee after: Science and Technology Development Company of SRIBS Patentee after: Shanghai Research Institute of Building Sciences (Group) Co., Ltd. Address before: 200032 Shanghai Wanping Road No. 75 Patentee before: Sci-Tech Development Corp., Shanghai City Inst. of Building Science Patentee before: Shanghai Research Institute of Building Sciences (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |