CN204151012U - A kind of elevator feed screw nut pair - Google Patents
A kind of elevator feed screw nut pair Download PDFInfo
- Publication number
- CN204151012U CN204151012U CN201420492646.1U CN201420492646U CN204151012U CN 204151012 U CN204151012 U CN 204151012U CN 201420492646 U CN201420492646 U CN 201420492646U CN 204151012 U CN204151012 U CN 204151012U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- lower nut
- permanent seat
- elevator
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of elevator feed screw nut pair, be installed on elevator landing both sides, comprise permanent seat, be arranged in the screw mandrel in the middle part of permanent seat, be threadedly connected to the upper nut of upper and lower outside screw mandrel respectively, lower nut, the bottom margin of upper nut is provided with the screw be fixed on permanent seat, the bottom of upper nut offers for installing lock bolt hole, lower nut offers and corresponding with pin-and-hole wears latch through hole, lower nut bottom internal outside latch is provided with Compress Spring, the Basolateral of Compress Spring is provided with the flathead screw being fixed in lower nut inside.The beneficial effects of the utility model are: once upper nut because wearing and tearing or the reason such as overweight are damaged, lower nut is by load-bearing, and actv. prevents lifting table landing, improves the safety of equipment; Lower nut is oppositely installed, with Emergency use, ensures the continuity of producing.
Description
Technical field
The utility model relates to a kind of elevator feed screw nut pair.
Background technology
The driving system of elevator is made up of motor, reductor, coupler and feed screw nut pair, and the weight of the personnel and instrument etc. of the carrying on lifting table and platform is born by each a pair feed screw nut pair of both sides completely.Feed screw nut pair in elevator driving system is main stressed member, and the material of screw mandrel and nut to determine nut more easy to wear compared with screw mandrel, therefore fault Producing reason is exactly the work of feed screw nut pair through certain hour, the thread ridge thickness of nut is thinning gradually, and finally causing cannot bearing load and rupturing.Elevator drive system structure determines the damage situations that cannot view nut intuitively, must be disassembled and just can observe, and dismounting had both affected the service life of equipment too frequently, the continuity of the normal production also easily destroyed.
Utility model content
The technical problems to be solved in the utility model is: based on the problems referred to above, provides a kind of elevator feed screw nut pair.
The utility model solves the technical scheme that its technical matters adopts: a kind of elevator feed screw nut pair, be installed on elevator landing both sides, comprise permanent seat, be arranged in the screw mandrel in the middle part of permanent seat, be threadedly connected to the upper nut of upper and lower outside screw mandrel respectively, lower nut, the bottom margin of upper nut is provided with the screw be fixed on permanent seat, the bottom of upper nut offers for installing lock bolt hole, lower nut offers and corresponding with pin-and-hole wears latch through hole, lower nut bottom internal outside latch is provided with Compress Spring, the Basolateral of Compress Spring is provided with the flathead screw being fixed in lower nut inside.
Further, screw is hexagon socket cap head screw.
Further, the outer end of flathead screw is provided with gland.
Further, upper nut, lower nut size are identical, symmetrical reverse install, between spacing be 8mm.
The beneficial effects of the utility model are: once upper nut because wearing and tearing or the reason such as overweight are damaged, lower nut is by load-bearing, and actv. prevents lifting table landing, improves the safety of equipment; Lower nut is oppositely installed, with Emergency use, ensures the continuity of producing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Wherein: 1. permanent seat, 2. screw, 3. screw mandrel, 4. upper nut, 5. lower nut, 6. flathead screw, 7. Compress Spring, 8. latch, 9. gland.
Detailed description of the invention
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Fig. 1, a kind of elevator feed screw nut pair shown in Fig. 2, be installed on elevator landing both sides, comprise permanent seat 1, be arranged in the screw mandrel 3 in the middle part of permanent seat 1, be threadedly connected to the upper nut 4 of upper and lower outside screw mandrel 3 respectively, lower nut 5, the bottom margin of upper nut 4 is provided with the screw 2 be fixed on permanent seat 1, the bottom of upper nut 4 offers the pin-and-hole for installing latch 8, lower nut 5 offers and corresponding with pin-and-hole wears latch 8 through hole, lower nut 5 bottom internal outside latch 8 is provided with Compress Spring 7, the Basolateral of Compress Spring 7 is provided with the flathead screw 6 being fixed in lower nut 5 inside.
Screw 2 is hexagon socket cap head screw.The outer end of flathead screw 6 is provided with gland 9.Upper nut 4, lower nut 5 size are identical, symmetrical reverse install, between spacing be 8mm.
During the installation of screw mandrel double nuts pair, upper nut 4 screws in permanent seat 1 from screw mandrel 3 lower end, and fixing with screw 2, lower nut 2 is except installation Compress Spring 7, latch 8 place, other oad of upper nut 4 is identical, screws in equally from screw mandrel 3 lower end, but contrary with upper nut 4 installation direction, when lower nut 5 is close to upper nut 4, extract latch 8 downwards, continue to screw in, until two nut interval about 8mm and latch 8 are to the pin-and-hole of upper upper nut 4 end face, unclamp latch 8, latch 8 inserts pin-and-hole.
When elevator normally works, be still the load-bearing of a nut (i.e. upper nut), the spring tongue mechanism on lower nut, only play shift fork, two nuts are synchronized with the movement, and the spacing of two nuts when keeping normally working.Once upper nut because wearing and tearing or the reason such as overweight are damaged, lower nut is by load-bearing, and actv. prevents lifting table landing, improves the safety of equipment; Lower nut is oppositely installed, with Emergency use, ensures the continuity of producing.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (4)
1. an elevator feed screw nut pair, be installed on elevator landing both sides, it is characterized in that: comprise permanent seat (1), be arranged in the screw mandrel (3) at permanent seat (1) middle part, be threadedly connected to the upper nut (4) of screw mandrel (3) outside upper and lower respectively, lower nut (5), the bottom margin of upper nut (4) is provided with the screw (2) be fixed on permanent seat (1), the bottom of upper nut (4) offers the pin-and-hole for installing latch (8), lower nut (5) offers and corresponding with pin-and-hole wears latch (8) through hole, lower nut (5) bottom internal in latch (8) outside is provided with Compress Spring (7), the Basolateral of Compress Spring (7) is provided with and is fixed in the inner flathead screw (6) of lower nut (5).
2. a kind of elevator feed screw nut pair according to claim 1, is characterized in that: described screw (2) is hexagon socket cap head screw.
3. a kind of elevator feed screw nut pair according to claim 1, is characterized in that: the outer end of described flathead screw (6) is provided with gland (9).
4. a kind of elevator feed screw nut pair according to claim 1, is characterized in that: described upper nut (4), lower nut (5) size are identical, symmetrical reverse install, between spacing be 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492646.1U CN204151012U (en) | 2014-08-27 | 2014-08-27 | A kind of elevator feed screw nut pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492646.1U CN204151012U (en) | 2014-08-27 | 2014-08-27 | A kind of elevator feed screw nut pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151012U true CN204151012U (en) | 2015-02-11 |
Family
ID=52509148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420492646.1U Expired - Fee Related CN204151012U (en) | 2014-08-27 | 2014-08-27 | A kind of elevator feed screw nut pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204151012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987142A (en) * | 2016-06-30 | 2016-10-05 | 嘉善金亿精密铸件有限公司 | Transmission system of lifting device used for processing production of nonferrous metals |
| CN112510369A (en) * | 2020-11-24 | 2021-03-16 | 武汉滨湖电子有限责任公司 | Antenna every single move transmission with early warning protection |
-
2014
- 2014-08-27 CN CN201420492646.1U patent/CN204151012U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987142A (en) * | 2016-06-30 | 2016-10-05 | 嘉善金亿精密铸件有限公司 | Transmission system of lifting device used for processing production of nonferrous metals |
| CN112510369A (en) * | 2020-11-24 | 2021-03-16 | 武汉滨湖电子有限责任公司 | Antenna every single move transmission with early warning protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |