CN86209866U - Electric lifting device with driving threaded rod - Google Patents
Electric lifting device with driving threaded rod Download PDFInfo
- Publication number
- CN86209866U CN86209866U CN 86209866 CN86209866U CN86209866U CN 86209866 U CN86209866 U CN 86209866U CN 86209866 CN86209866 CN 86209866 CN 86209866 U CN86209866 U CN 86209866U CN 86209866 U CN86209866 U CN 86209866U
- Authority
- CN
- China
- Prior art keywords
- worm
- screw
- push rod
- worm gear
- hole
- 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 - Lifetime
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Abstract
The utility model discloses an electric lifting device with a driving threaded rod which is the device for lifting load continuously. Because driving bolts, a positioning device-positioning end cover, and a thrust bearing housing are adopted, the positioning device of the worm wheels are arranged on the upper part of the driving bolts, the worm wheels and the screw rods can not be displaced during the transmission of the force of the worm gear drive pair and the screw drive pair, the accuracy of mesh is ensured, and the service life is extended. Because of another reason that the utility model adopts a special shape special worm and a worm wheel box and a different diameter guiding supporting sleeve which is provided with bosses, the structure is reasonable and the external shape is beautiful.
Description
The utility model belongs to the device of lifting load continuously.
Existing motorcar electric bottle jack (being commonly called as electronic jack) is made up of members such as electrical motor, worm screw, worm gear, drive screw, driving nut, push rod, push rod supporting sleeves.Its principle of work is: electrical motor makes worm screw, worm gear, drive screw rotation, owing to be fixed on the threaded fastening of driving nut of push rod below, push rod top is directed to again that mechanism---orienting sleeve, feather key and pressure mother make circumferential registration, push rod can not rotate, can only up-and-down movement, promptly produce the lifting function.The supporting sleeve of lift jack is used to support push rod and assembling guiding mechanism, the resistance when thrust bearing can reduce the worm gear rotation, and radial bearing is used to support the drive screw lower end.The shortcoming of this class lift jack is: when the lift jack loaded work piece, screw rod and thereon worm gear of combination can be subjected to along shown in the n(accompanying drawing 1) thrust of direction, make it produce the displacement of horizontal direction; When lift jack was removed load and needed in the push rod income machine, screw rod and combination worm gear thereon can be subjected to along shown in the m(accompanying drawing 1) hoisting force of direction and being raised, just directly clash into together with the worm screw root selenodont worm gear gear teeth lower edge.These two kinds of displacements are in abnormal engagement in the time of screw drive being paid pay power transmission with worm drive, cause shorten service life.Be also pointed out that: electric screw lift jack commonly used, except that worm drive pay with screw drive pay selected parameter more consistent, all the other members all do not have universalization and normalisation, can produce the shortcoming of displacement when having main transmission component power transmission, also exist volume big, defectives such as structure is not compact, and profile is plain.
The utility model purpose is to simplify the structure of lift jack and the profile of beautifying lift jack simultaneously by improving the service life that screw drive is paid, the ingear accuracy prolonged them when worm drive was paid power transmission.
The utility model adopts a drive screw, worm gear registration device, pays when paying power transmission with worm drive in screw drive, makes screw rod, worm gear location.
The registration device (as accompanying drawing 1) that the utility model adopts is made up of screw rod location end cap (9) and the thrust shaft block (10) that is contained on the worm case bottom surface.The concrete practice is, the shaft shoulder on the drive screw is inserted in holding in the hole of location end cap, the screw rod lower end is stretched in the thrust shaft block hole, and drive screw and combination worm gear thereon be just by radial location, and cancelled the radial bearing of existing lift jack; Screw rod location end cap holds the one side of outwards protruding the below, hole has an annular end face with the annular boss mating reaction on the worm gear, and drive screw and combination worm gear thereon have been axially located again.
The utility model has adopted the special-purpose worm and wormwheel case (8) of a special shape to satisfy the installation requirement of location end cap (9), thrust shaft block (10), motor mounting frame and road wheel.
The utility model adopts a reducing hollow push rod guided bearing cover (7) that has boss, the guiding mechanism---orienting sleeve, feather key, the pressure mother that have cancelled existing lift jack.
The utlity model has following advantage:
1. worm drive is paid with screw drive and is paid when the power transmission, is in normal engagement fully and has prolonged their service life;
2. adopt the special-purpose worm and wormwheel case of a special shape, make the compact conformation of lift jack reasonable, goodlooking;
3. adopt the different guided diameter supporting sleeve of a tape guide boss, cancel original guiding mechanism, make the structure of lift jack more simple.
Description of drawings:
1. accompanying drawing 1 is the utility model electric screw lift jack assembly drowing; Among the figure: (1) electrical motor; (2) worm screw; (3) worm gear; (4) drive screw; (5) driving nut; (6) push rod; (7) guided bearing cover; (8) worm and wormwheel case; (9) screw rod location end cap; (10) thrust shaft block; (11) thrust bearing.
2. accompanying drawing 2 is that drive screw location end cap is along the axis cutaway view; Among the figure: (1) is annular end face.
3. accompanying drawing 3 is A-A cross section views of accompanying drawing 4.
4. accompanying drawing 4 is birds-eye vieies of worm and wormwheel case.
5. accompanying drawing 5 is to be with the different guided diameter supporting sleeve of boss along the axis cutaway view.
6. accompanying drawing 6 is A-A cross section views of accompanying drawing 5.
7. accompanying drawing 7 is A-A cross section views of accompanying drawing 8.
8. accompanying drawing 8 is birds-eye vieies of thrust shaft block.
Accompanying drawing 1 to accompanying drawing 8 is exemplary embodiments of the utility model.From accompanying drawing 1 as can be seen: electrical motor (1) makes worm screw (2) worm gear (3) drive screw (4) rotation, owing to be fixed on the threaded fastening of driving nut (5) of push rod (6) below, circumferential registration is made by the guided bearing cover (7) of the band boss that the utility model adopts in the push rod top, push rod can not rotate, can only up-and-down movement, produce the lifting function; Because of the screw rod shaft shoulder is inserted in holding in the hole of screw rod location end cap (9), lower end stretches in thrust shaft block (10) hole again, and drive screw, worm gear are just by radial location; The annular end face that outwards protrude end cap below, location is with the annular boss mating reaction on the worm gear, and drive screw, worm gear have been axially located again.Through hole above the special-purpose worm and wormwheel case (8) is used for the installing and locating end cap, and the blind hole of bottom surface is used to install thrust shaft block, and the boss of side is installed motor frame, and outstanding ear is installed road wheel.Each component part of electric screw lift jack of the present utility model can be made by accompanying drawing 2 to accompanying drawing 8, presses accompanying drawing 1 assembling then.
Claims (3)
1, a kind of electric screw lift jack, have members such as electrical motor, worm screw, worm gear, drive screw, driving nut, push rod, push rod supporting sleeve, it is characterized in that drive screw, worm gear have the registration device of being made up of location end cap (9) and thrust shaft block (10), the below of location end cap (9) has one to hold the hole, and holding the one side of outwards protruding in the hole is planar annular.
2, according to the described lift jack of claim 1, it is characterized in that having a special-purpose worm and wormwheel case, there is a blind seat hole case bottom surface, and a through hole is arranged above the case, and there are a boss and two outstanding ears in the case side.
3,, it is characterized in that the push rod supporting sleeve is to lead the footpath hollow cylinder more than two sections or two sections, and have guide ledges at path one end according to claim 1 or 2 described lift jacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86209866 CN86209866U (en) | 1986-12-02 | 1986-12-02 | Electric lifting device with driving threaded rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86209866 CN86209866U (en) | 1986-12-02 | 1986-12-02 | Electric lifting device with driving threaded rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86209866U true CN86209866U (en) | 1988-02-10 |
Family
ID=4811666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86209866 Expired - Lifetime CN86209866U (en) | 1986-12-02 | 1986-12-02 | Electric lifting device with driving threaded rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86209866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080456A (en) * | 2010-07-01 | 2013-05-01 | 法雷奥安全系统有限责任公司 | Jack screw for moving a movable panel of a vehicle |
| CN110104581A (en) * | 2018-12-05 | 2019-08-09 | 哈尔滨工业大学 | A kind of spiral lift based on planetary roller screw |
-
1986
- 1986-12-02 CN CN 86209866 patent/CN86209866U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080456A (en) * | 2010-07-01 | 2013-05-01 | 法雷奥安全系统有限责任公司 | Jack screw for moving a movable panel of a vehicle |
| CN110104581A (en) * | 2018-12-05 | 2019-08-09 | 哈尔滨工业大学 | A kind of spiral lift based on planetary roller screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |