CN204778184U - Lead -screw elevator - Google Patents
Lead -screw elevator Download PDFInfo
- Publication number
- CN204778184U CN204778184U CN201520267020.5U CN201520267020U CN204778184U CN 204778184 U CN204778184 U CN 204778184U CN 201520267020 U CN201520267020 U CN 201520267020U CN 204778184 U CN204778184 U CN 204778184U
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- Prior art keywords
- screw
- insurance
- lead
- rotating shaft
- elevator
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- 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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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 206010033799 Paralysis Diseases 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
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Abstract
The utility model provides a lead -screw elevator, including car, motor, screw and lead screw, the motor includes the pivot, the pivot includes that axially extending bore just the screw is fixed in in the axially extending bore, be equipped with the axial screw hole that runs through in the screw, the lead screw outer wall is provided with the external screw thread, the screw hole of screw with the external screw thread of lead screw matches the meshing just the lead screw runs through the screw hole, still including the insurance screw, the insurance screw with the coaxial fixed connection of pivot, the minor diameter of internal thread of insurance screw is lighter than the minor diameter of internal thread of screw just the minor diameter of internal thread of insurance screw is lighter than the external diameter of the external screw thread of lead screw. Compared with the prior art, the utility model discloses a set up the insurance screw and guarantee the safety of interior passenger of car or goods, improve lead -screw elevator's level of safety.
Description
Technical field
The utility model relates to a kind of elevator, particularly a kind of lead-screw elevator.
Background technology
Along with the fast development of economy and deepening continuously of Development of China's Urbanization, being on the increase of skyscraper, the demand of elevator is also increasing, and the vertical elevator that runs is as carriage of special cargo equipment, and the personal safety of its safety run and passenger is closely related.
Lead-screw elevator, as the one of elevator, comprises the parts such as car, screw mandrel, screw and motor.Wherein the screw thread coupling engagement of screw and screw mandrel is arranged, and motor rotates on screw mandrel by driving screw, thus produce along screw axis to power, drive car moving axially along leading screw.
Current lead-screw elevator all adopts monofilament parent structure, namely only has a screw, at screw cracked or damage time, elevator has the risk fallen or paralyse immediately, jeopardizes passenger safety or cargo security.
How ensureing the safety of passenger or goods in elevator when screw et out of order, and after screw damages, ensure the normal operation of goods in certain hour, is a problem demanding prompt solution.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of lead-screw elevator with insurance screw.
A kind of lead-screw elevator, comprise car and jacking system, described jacking system comprises motor, screw and leading screw, described motor comprises rotating shaft, described rotating shaft comprises axially extending bore and described screw is fixed in described axially extending bore, the axial threaded hole run through is provided with in described screw, described leading screw outer wall is provided with outside thread, the axial threaded hole of described screw and the outside thread of described leading screw mate and to engage and described leading screw runs through described axially extending bore, also comprise insurance screw, described insurance screw is coaxially fixedly connected with described rotating shaft, described wire fuse main bag draws together the axial threaded hole run through, described insurance screw and screw all comprise negative thread, the minor diameter of internal thread of described insurance screw is less than the minor diameter of internal thread of described screw and the minor diameter of internal thread of described insurance screw is less than the externally threaded external diameter of described leading screw.
As the further improvement of above-mentioned embodiment, also comprise Knapsack-rack, described Knapsack-rack is fixed on described car top, and described motor is fixed on described Knapsack-rack.
As the further improvement of above-mentioned embodiment, described insurance screw is cast device, comprises body, runs through the through hole of described body and is arranged at the negative thread of described inboard wall of tube body.
As the further improvement of above-mentioned embodiment, the described negative thread number of turns is multi-turn.
As the further improvement of above-mentioned embodiment, described insurance screw is steel matter.
As the further improvement of above-mentioned embodiment, also comprise band-type brake, described band-type brake is fixed on described rotating shaft and is positioned at below described screw, and described band-type brake holds described rotating shaft and then fixing described car tightly when described motor quits work.
As the further improvement of above-mentioned embodiment, described insurance screw is fixed on described rotating shaft and is positioned at below described band-type brake.
Compared to prior art, the double screw nut elevator that the utility model provides is simple.Solve and to fall problem at the lead-screw elevator motor that causes or car when running into screw collapse or damaging; the insurance screw simultaneously set up can when screw be destroyed; described motor and car can decline a very little distance; at this moment insure screw to contact with leading screw; car is stoped to fall; the normal work of elevator can be ensured within a period of time simultaneously; be unlikely to the elevator when screw collapses suddenly or damages to paralyse at once; thus the safety of passenger or goods in guarantee car, strengthen the security level of elevator.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the construction profile schematic diagram of the utility model lead-screw elevator one embodiment;
Fig. 2 is the birds-eye view of lead-screw elevator one embodiment of the present invention;
Fig. 3 is the section-drawing of the insurance screw of the utility model lead-screw elevator;
Fig. 4 is the section-drawing of the utility model lead-screw elevator insurance screw and lead screw position relation.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the utility model is protected.
Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, wherein Fig. 1 is the construction profile schematic diagram of the utility model lead-screw elevator one embodiment, Fig. 2 is the birds-eye view of lead-screw elevator one embodiment of the present invention, Fig. 3 is the section-drawing of the insurance screw of the utility model lead-screw elevator, and Fig. 4 is the section-drawing of the utility model lead-screw elevator insurance screw and lead screw position relation.Described lead-screw elevator 100 comprises car 1, jacking system 2, insurance screw 3, band-type brake 4 and Knapsack-rack 5, described jacking system 2 comprises motor 21, screw 22 and leading screw 23, described motor 21 comprises rotating shaft 211, described rotating shaft 211 comprises axially extending bore 2111 and described screw 22 is fixed in described axially extending bore 2111, preferably, described rotating shaft 211 is structure as a whole with described screw 22.The axial internal thread hole 221 run through is provided with in described screw 22, described leading screw 23 outer wall is provided with outside thread 231, described axial internal thread hole 221 and described outside thread 231 mate and to engage and described leading screw 23 runs through described axially extending bore 2111, described insurance screw 3 and described rotating shaft 211 are coaxially fixedly installed, and the minor diameter of internal thread of described insurance screw 3 is less than the minor diameter of internal thread of described screw 22 and the minor diameter of internal thread of described insurance screw 3 is less than the externally threaded external diameter of described leading screw 23.Described band-type brake 4 is fixed on described rotating shaft and is positioned at below described screw, and described band-type brake 4 holds described rotating shaft 211 tightly when described motor 21 quits work thus fixing described car 1, prevents described car 1 from falling.Described Knapsack-rack 5 is fixed on the top of described car 1, and described motor 21 is fixed on described Knapsack-rack 5.
In the work process of described lead-screw elevator 100, described motor 21 drives described screw 22 to rotate by the rotation of described rotating shaft 211, arrange because described screw 22 engages with described leading screw 23, described leading screw 23 is fixedly installed, and makes described screw 22 by rotating the axial motion driving described motor 21 along described leading screw 23.Because described motor 21 is fixed on described Knapsack-rack 5, described Knapsack-rack 5 is fixed on described car 1 top.So described motor 21 can drive described car also along the axial motion of described leading screw 23 along during the axial motion of described leading screw 23, thus realize lead-screw elevator 100 and carry out object that is manned or loading along the axially reciprocating of described leading screw 23.
Preferably, described screw 22 is carbon fibre materials.The screw of carbon fiber component has that intensity is high, lightweight, the advantage such as corrosion stability and abrasion-resistant, in addition, also has the quality matetrial that self-lubricating function is a kind of high-strength light.But carbon fiber component after a long time use also can generating material aging, cause workpiece occur collapse disintegrate risk.Although the possibility that this risk occurs within the design service life time limit of elevator is very little, this risk still exists, and therefore will try every possible means to take precautions against this risk.
In the utility model, solve this problem by increasing an insurance nut device.By under the prerequisite of original described screw 22, then set up an insurance screw 3.Described insurance screw 3 and described rotating shaft 211 are coaxially fixedly installed and described insurance screw 3 is sheathed on described leading screw 23, and the minor diameter of internal thread of described insurance screw 3 is less than the minor diameter of internal thread of described screw 22 and the minor diameter of internal thread of described insurance screw 3 is less than the externally threaded external diameter of described leading screw 23.So at described lead-screw elevator 100 along in described leading screw 23 axial reciprocating operational process, described insurance screw 3 does not contact with described leading screw 23, described in the normal operation of described elevator 100, insure screw 3 be in idling conditions.Preferably, described insurance screw 3 is steel matter, and firm material catabiosis can not occur, and is in idle running shape body when described insurance screw 3 is flat simultaneously, can not wear and tear, catabiosis, so good mode of operation can be kept in described lead-screw elevator 100 for a long time operational process.
In the operational process of described lead-screw elevator, only can there is described screw 22 in normal circumstances to contact with described leading screw 23, described screw 22 and described leading screw 23 intermesh, on described leading screw 23, rotate selection by described screw 22 and realize spiral and screw thread facing screws, and then the gyroscopic movement between described screw 22 and described leading screw 23 is converted to straight-line motion.If when there is suddenly described screw 22 screw thread ageing failure or collapse disintegration, because described motor 21 and described car 1 are by described Knapsack-rack 5, so now described motor 21 and described car 1 can fall a minimum height simultaneously, after described motor 21 and described car 1 decline certain height, described insurance screw 3 will contact with described leading screw 23, at this moment insure screw 3 and just can support described motor 21 and described car 1 makes it not continue to fall, described insurance screw 3 can replace described screw 22 to work within a period of time simultaneously, thus the normal operation of described lead-screw elevator 100 is ensured when the collapse suddenly of described screw 22.The existence of described insurance screw 3 can avoid falling of described motor 21 and described car 1, ensures the safety of passenger or goods, improves the safety of described lead-screw elevator 100.
Compared to prior art, the double screw nut elevator that the utility model provides is simple.Solve and to fall problem at the lead-screw elevator motor that causes or car when running into screw collapse or damaging; the insurance screw simultaneously set up can when screw be destroyed; described motor and car can decline a very little distance; at this moment insure screw to contact with leading screw; car is stoped to fall; the normal work of elevator can be ensured within a period of time simultaneously; be unlikely to the elevator when screw collapses suddenly or damages to paralyse at once; thus the safety of passenger or goods in guarantee car, strengthen the security level of elevator.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a lead-screw elevator, comprise car and jacking system, described jacking system comprises motor, screw and leading screw, described motor comprises rotating shaft, described rotating shaft comprises axially extending bore and described screw is fixed in described axially extending bore, the axial threaded hole run through is provided with in described screw, described leading screw outer wall is provided with outside thread, the axial threaded hole of described screw and the outside thread of described leading screw mate and to engage and described leading screw runs through described axially extending bore, it is characterized in that, also comprise insurance screw, described insurance screw is coaxially fixedly connected with described rotating shaft, described wire fuse main bag draws together the axial threaded hole run through, described insurance screw and screw all comprise negative thread, the minor diameter of internal thread of described insurance screw is less than the minor diameter of internal thread of described screw and the minor diameter of internal thread of described insurance screw is less than the externally threaded external diameter of described leading screw.
2. lead-screw elevator according to claim 1, is characterized in that, also comprises Knapsack-rack, and described Knapsack-rack is fixed on described car top, and described motor is fixed on described Knapsack-rack.
3. lead-screw elevator according to claim 1, is characterized in that, described insurance screw is cast device, comprises body, runs through the through hole of described body and is arranged at the negative thread of described inboard wall of tube body.
4. insurance screw according to claim 1, is characterized in that, the described negative thread number of turns is multi-turn.
5. lead-screw elevator according to claim 1, is characterized in that, described insurance screw is steel matter.
6. lead-screw elevator according to claim 1, is characterized in that, also comprises band-type brake, and described band-type brake is fixed on described rotating shaft and is positioned at below described screw, and described band-type brake holds described rotating shaft and then fixing described car tightly when described motor quits work.
7. lead-screw elevator according to claim 6, is characterized in that, described insurance screw is fixed on described rotating shaft and is positioned at below described band-type brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267020.5U CN204778184U (en) | 2015-04-27 | 2015-04-27 | Lead -screw elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267020.5U CN204778184U (en) | 2015-04-27 | 2015-04-27 | Lead -screw elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778184U true CN204778184U (en) | 2015-11-18 |
Family
ID=54518276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520267020.5U Expired - Fee Related CN204778184U (en) | 2015-04-27 | 2015-04-27 | Lead -screw elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860158A (en) * | 2015-04-27 | 2015-08-26 | 胡国良 | Lead screw elevator |
-
2015
- 2015-04-27 CN CN201520267020.5U patent/CN204778184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860158A (en) * | 2015-04-27 | 2015-08-26 | 胡国良 | Lead screw elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170208 Address after: 315040 room 233-3, building, No. 66, academician Road, high tech Zone, Zhejiang, Ningbo, China Patentee after: Ningbo ever Elevator Technology Development Co., Ltd. Address before: 528401 Guangdong city of Zhongshan province Xiyuan Fuhua Road Plaza and pavilion 18 buildings D Patentee before: Hu Guoliang |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180427 |