CN2409239Y - Screw type hoist - Google Patents
Screw type hoist Download PDFInfo
- Publication number
- CN2409239Y CN2409239Y CN 00201719 CN00201719U CN2409239Y CN 2409239 Y CN2409239 Y CN 2409239Y CN 00201719 CN00201719 CN 00201719 CN 00201719 U CN00201719 U CN 00201719U CN 2409239 Y CN2409239 Y CN 2409239Y
- Authority
- CN
- China
- Prior art keywords
- screw
- involutory
- tapered nut
- close machine
- open
- 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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- Sealing Devices (AREA)
- Transmission Devices (AREA)
Abstract
The utility model provides a screw hoist for opening and closing gates in water conservancy projects. A pair of involution conic nuts made of water resistant and oil-resistant rubber is arranged on a press cover and screwed with a lead screw after positioned and pressed by sealing covers the bores of which have the same conicity; a pair of the involution conic nuts can seal a gap between the press cover and the lead screw so as to avoid rainwater from pouring the inner part of a machine body to rust and destroy bearings, etc. The utility model has the advantages of simple structure, operational safety and prolonged service life of the screw hoist.
Description
The utility model relates to hydraulic engineering gate headstock gear, is specifically related to a kind of screw open-close machine.
In a large amount of screw open-close machines that use of hydraulic engineering at present, especially the headstock gear below 10 tons is open-air the installation mostly, though the design and installation that has the leading screw guard shield, destroy and lose but be pickled with grains or in wine in use more, in fact most screw mandrels, fuselage appoint rainwater to water pouring all the year round.Rainwater enters casing inside along leading screw and descending, and causes part corrosion such as bearing and scraps.
The purpose that this practicality is new provides a kind of modern design, and is simple in structure, can protect part such as inboard bearing to avoid the screw open-close machine of rainwater infringement.
The utility model is to realize by the gap between gland and the leading screw is provided with sealing device.Its principal character is: establish an involutory tapered nut on gland, screw with leading screw, which is provided with seal cover and be located, compress.It is characterized in that involutory tapered nut respectively establishes a spring on two mating face; It is characterized in that the elastomeric material manufacturing that involutory tapered nut is a Waterproofing/oilproofing; It is characterized in that seal cover internal taper hole and the same tapering of involutory tapered nut.Its feature also is to be provided with above the gland concave station, and involutory tapered nut is located on the concave station.
The utility model has the advantages that: solved the screw open-close machine casing water inlet of open-air use, the problem of part corrosion and destructions such as bearing has prolonged application life of screw open-close machine.
Description of drawings:
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is after removing other part among Fig. 1, the involutory tapered nut front view of band spring.
Fig. 3 is the vertical view of Fig. 2.
The embodiment that provides in conjunction with the accompanying drawings describes the utility model in detail: with reference to figure 1, on gland 1, establish round concave table 2, establish the involutory tapered nut 3 and 4 that the water-fast rubber of an oil resistant is made on it, respectively establish 7 one of pressing springs between nut 3 and 4 the two pairs of mating faces 8 and 9,10 and 11, the stage clip two ends are respectively in the patchhole 12; Involutory flare nut is provided with seal cover 5, the endoporus of seal cover 5 and involutory tapered nut 3 and 4 same taperings, and seal cover 5 is positioned at involutory tapered nut 3 and 4 on the gland 1 by one group of screw 6.The screw 6 that screws make involutory tapered nut 3 and 4 and leading screw 13 screw.
Before starting gate, earlier one group of screw 6 is unclamped, involutory tapered nut 3 with 4 spring 7 effect under separate, after treating to leave leading screw 13 fully, headstock gear can be started working, gate opens liter, whether treating that gate is raised to expection height and needs stops, then one group of screw 6 is screwed gradually, and observe involutory tapered nut 3 and 4 and just in time screw with leading screw 13, otherwise change involutory tapered nut 3 and 4 slightly, treat that screwing the back with leading screw 13 compresses seal cover 5 by screw 6 and get final product.As the rainy day, water can not enter internal body yet like this, has played the purpose of protection headstock gear.
Claims (5)
1, a kind of screw open-close machine mainly is made up of leading screw, screw, gland, casing, bearing, transmission device etc., it is characterized in that: establish an involutory tapered nut on the gland, screw with leading screw, which is provided with seal cover and be located, compress.
2, it is characterized in that according to the said screw open-close machine of claim 1 involutory tapered nut respectively is provided with a spring on two mating face.
3,, it is characterized in that involutory tapered nut is elastomeric material manufacturing water-fast, oil resistant according to the said screw open-close machine of claim 1.
4,, it is characterized in that seal cover internal taper hole and the same tapering of involutory tapered nut according to the said screw open-close machine of claim 1.
5, according to the said screw open-close machine of claim 1, its feature also is: be provided with a concave station above the gland, involutory tapered nut is established thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201719 CN2409239Y (en) | 2000-01-01 | 2000-01-01 | Screw type hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201719 CN2409239Y (en) | 2000-01-01 | 2000-01-01 | Screw type hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2409239Y true CN2409239Y (en) | 2000-12-06 |
Family
ID=33570925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00201719 Expired - Fee Related CN2409239Y (en) | 2000-01-01 | 2000-01-01 | Screw type hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2409239Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672133A (en) * | 2014-01-04 | 2014-03-26 | 何敬丽 | Threaded stud rotator |
-
2000
- 2000-01-01 CN CN 00201719 patent/CN2409239Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672133A (en) * | 2014-01-04 | 2014-03-26 | 何敬丽 | Threaded stud rotator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |