CN205953251U - Construction elevator who takes abrasionproof to decrease device prevents weighing down breaker oilless bearing device - Google Patents

Abstract

The utility model provides a construction elevator who takes abrasionproof to decrease device prevents weighing down breaker oilless bearing device, include: oilless bearing, the inside gear shaft passageway that is of oilless bearing, big end cover and the extension that outwards extends from the central cylinder -shaped object surface of big end cover, slot ball bearing is located oilless bearing one end, has placed at least round ball along slot ball bearing internal surface, wherein, oilless bearing and slot ball bearing all lie in big end cover to oilless bearing is adjacent with main aspects inner surface of the cover with slot ball bearing surface. The utility model discloses rectified the unilateral atress and the unilateral wearing and tearing of gear shaft to oilless bearing that produce at during operation gear shaft and rack toothing, the life and the surperficial of gear shaft of having improved oilless bearing are worn and torn, also reduce the noise problem that the during operation produced, reduced factory's maintenance and the expense after sale returned.

Description

Anti-falling safety device for construction lift oilless bearing device with antiwear device

Technical field

This utility model is related to a kind of protection device of Anti-falling safety device for construction lift, and more particularly, to one kind is used for reducing Or avoid the device of Anti-falling safety device for construction lift oilless bearing abrasion.

Background technology

In current construction site, skyscraper, widely use the dual-purpose building hoist of people's goods of rack pinion, Defeated to realize people, shipping, because adjustable height is high, load weight is big, there is certain risk when using.Anti-falling safety device energy Enough greatly improve the safety coefficient of building hoist, prevent cage from falling and cause casualties.

Due to Anti-falling safety device for construction lift install elevator gear axle monolateral with tooth bar engage so that gear shaft and The monolateral stress of oilless bearing, the serious wear to oilless bearing and gear shaft.In addition, Anti-falling safety device for construction lift without Often, in the case of not having sufficient lubrication, Anti-falling safety device for construction lift work also can produce noise for maintenance, oilless bearing.

CN202072369U discloses a kind of protection device of anti-falling safety device, driving rack and safe fall-proof on anti-backing plate The gear engagement of device, anti-backing plate is carried on the back wheel and rack engaged transmission.This protection device may insure anti-falling safety device and tooth bar Gap, reduces instant impact, and can absorb anon-normal constance force it is ensured that the normal guard mode of safety.

But this apparatus structure is excessively complicated, and need separately to fill multiple parts, bad adaptability in outside.

Utility model content

Do not possess antiwear device for current Anti-falling safety device for construction lift and need to frequently change lacking of oilless bearing Fall into, this utility model provides a kind of Anti-falling safety device for construction lift oilless bearing with antiwear device.

Anti-falling safety device for construction lift oilless bearing device with antiwear device provided by the utility model, bag Include：

Oilless bearing, is gear axis channel inside oilless bearing；

Big end cap, the extension outwardly extend including center tubular article and from center tubular article；

Groove ball bearing, positioned at oilless bearing one end, is placed with least one circle ball along groove ball bearing inner surface； Wherein, oilless bearing and groove ball bearing are respectively positioned in big end cap central tubular article, and oilless bearing and groove ball axle Bearing outer surface is adjacent with big end cap central tubular article inner surface.

In an advantageous embodiment, two end bearings are also included, i.e. A end bearing and B end bearing；Wherein, A end bearing and B end bearing sets up separately at big end cap central tubular article two ends；Oilless bearing and groove ball bearing are located at A end bearing and B end bearing Between.

In an advantageous embodiment, also include oil sealing, oil sealing is located at oilless bearing and described oilless bearing is adjacent Between end bearing.

In an advantageous embodiment, described extension can be one of tablet, shaft, block or several Kind.

In more preferred embodiment, described extension can be annular, or fin-type.

In more preferred embodiment, described extension is provided with the hole running through described extension.

In an advantageous embodiment, two end bearings are fixed on big end cap.

In an advantageous embodiment, the wall of the tubular article of described big end cap is provided with hole, and fixed component inserts in the hole, will Oilless bearing is fixed.

In an advantageous embodiment, groove ball bearing can be integrally fixed in big end cap, or can be in big end cap Interior rotation.Wherein, in the case of fixing, can be that the wall of the tubular article of big end cap is provided with hole, fixed component inserts in the hole, will Groove ball bearing is fixed.But it is preferably groove ball bearing in this utility model to rotate in big end cap.

This utility model additionally provides a kind of Anti-falling safety device for construction lift with antiwear device, including above-mentioned any A kind of oilless bearing device, also includes gear shaft；Described gear shaft includes gear and the rotating shaft of end, and rotating shaft is inserted into oil-free axle Hold with groove ball bearing inside, wherein, groove ball bearing be located near gear one end.

In an advantageous embodiment, described rotating shaft sequentially passes through B end bearing, groove ball bearing, oilless bearing, oil Envelope, A end bearing inner passage.

In an advantageous embodiment, described Anti-falling safety device for construction lift, also includes cone drum, cone drum and described extension Portion connects.

The Anti-falling safety device for construction lift with antiwear device for this utility model and its oilless bearing, correct in work When making, gear shaft engages the uneven wear to oilless bearing for the monolateral stress and gear shaft producing with tooth bar, improves oilless bearing Service life and gear shaft surface abrasion；Also reduce the noise problem producing during work, reduce depot repair and after sale Expense.

Brief description

Fig. 1 is the Anti-falling safety device for construction lift with antiwear device and its nothing in a kind of embodiment of this utility model Oil bearing structural representation；

Fig. 2 is the described Anti-falling safety device for construction lift with antiwear device and its oilless bearing uses mounting structure Schematic diagram.

Specific embodiment

See figures.1.and.2, this utility model Anti-falling safety device for construction lift and its oilless bearing structure are as follows：

Big end cap 2 includes the tubular article at middle part, and tubular article outwardly extends, and forms the extension of annular slice.

Inside the tubular article of big end cap 2, it is provided with oilless bearing 3 and groove ball bearing 4, table in groove ball bearing 4 Face is ring-shaped groove, places a circle ball along trench wall.Oilless bearing 3 and the cylinder of groove ball bearing 4 outer wall and big end cap 2 Shape thing inwall is adjacent.

As shown in figure 1, groove ball bearing 4 thickness is more than oilless bearing 3, the tubular article of big end cap 2 is in groove ball axle Hold formation step between 4 positions and oilless bearing 3.

One end of the close or adjacent oilless bearing 3 in groove ball bearing 4 one end, the other end is B end bearing 6, B end bearing 6 Tubular article end positioned at big end cap 2.Similar, as depicted in figs. 1 and 2, it is provided with A end bearing in the other end of oilless bearing 3 7, A end bearings 7 are located at the other end of the tubular article of big end cap 2.And, it is provided with oil sealing 1 between oilless bearing 3 and A end bearing 7.

Gear shaft 6 includes rotating shaft and gear, and gear is located at the one end of the big end cap 2 being provided with groove ball bearing 4, and rotating shaft is inserted Enter inside big end cap 2 tubular article, sequentially pass through B end bearing 6, groove ball bearing 4, oilless bearing 3, oil sealing 1, A end bearing 7, It is inserted in Outer Taper 8.

During installation, big end cap 2 is kept flat, groove ball bearing 4 is inserted into the tubular article at big end cap 2 middle part from one end Interior, cover B end bearing 6.Insert oilless bearing 3 in big end cap 2 other end so as to concordant with groove ball bearing 4, by oil sealing 1 It is contained in oilless bearing end with A end bearing 7.A end bearing 7 and B end bearing 5 can be preset with installing hole or new production installation Hole, construction opening resilient key is fixed.

Installing hole or new production installing hole, construction opening bullet can also be preset with the wall of big end cap 2 central cartridge thing Property pin oilless bearing 3 is fixing, prevent oilless bearing 3 from rotating with gear shaft 6.

Groove ball bearing 4 can also be to adopt to be fixed in a like fashion in big end cap 2 or can hold big Rotate in lid.

As shown in Fig. 2 the knot such as nut of the hole run through on Outer Taper (cone drum) 8 and big end cap 2 extension and insertion in the hole Structure is fixed.

In this utility model, compared to prior art, it is possible to reduce oilless bearing length, thus reducing oilless bearing and tooth The contact area of wheel shaft, in addition, increasing groove ball bearing and B end bearing, when gear shaft is with racks turn, ball rotates (or groove ball bearing also concomitant rotation), can the effective uneven wear to oilless bearing for the corrected gear axle, thus reducing The surface abrasion of gear shaft, improves the service life of oilless bearing.

Above specific embodiment of the utility model is described in detail, but it has been intended only as example, this practicality is new Type is not restricted to particular embodiments described above.To those skilled in the art, any this utility model is carried out Equivalent modifications and substitute also all among category of the present utility model.Therefore, without departing from spirit of the present utility model and model Enclose lower made impartial conversion and change, all should cover in the range of this utility model.

Claims (9)

1. a kind of Anti-falling safety device for construction lift oilless bearing device with antiwear device is it is characterised in that include：

Oilless bearing, is gear axis channel inside oilless bearing；

Big end cap, the extension outwardly extend including center tubular article and from center tubular article；

Groove ball bearing, positioned at oilless bearing one end, is placed with least one circle ball along groove ball bearing inner surface；

Wherein, oilless bearing and groove ball bearing are respectively positioned in big end cap central tubular article, and oilless bearing and ditch trough roller Pearl bearing outside surface is adjacent with big end cap central tubular article inner surface.

2. oilless bearing device according to claim 1 is it is characterised in that also include two end bearings, that is, A end bearing and B end bearing；Wherein, A end bearing and B end bearing set up separately at big end cap central tubular article two ends；Oilless bearing and groove ball axle Hold between A end bearing and B end bearing.

3. it is characterised in that also including oil sealing, oil sealing is located at oilless bearing to oilless bearing device according to claim 2 And between the adjacent end bearing of described oilless bearing.

4. oilless bearing device according to claim 1 runs through described extension it is characterised in that described extension is provided with Hole.

5. oilless bearing device according to claim 1 is it is characterised in that the wall of the tubular article of described big end cap is provided with Hole, fixed component inserts in the hole, and oilless bearing is fixed.

6. oilless bearing device according to claim 1 is it is characterised in that groove ball bearing is fixed in big end cap, Or can rotate in big end cap.

7. a kind of Anti-falling safety device for construction lift with antiwear device is it is characterised in that include the nothing described in claim 1 Oil bearing device, also includes gear shaft；Described gear shaft includes gear and the rotating shaft of end, and rotating shaft is inserted into oilless bearing and ditch Trough roller pearl Bearing inner, wherein, groove ball bearing is located at the one end near gear.

8. Anti-falling safety device for construction lift according to claim 7 is it is characterised in that described rotating shaft sequentially passes through B end Bearing, groove ball bearing, oilless bearing, oil sealing, A end bearing inner passage.

9. it is characterised in that also including cone drum, cone rouses and institute Anti-falling safety device for construction lift according to claim 7 State extension to connect.