CN2046875U

CN2046875U - Metallic endless belt

Info

Publication number: CN2046875U
Application number: CN 89203408
Authority: CN
Inventors: 冯涌泉
Original assignee: Xi'an Aero-Engine Corp Hongqi Heating And Ventilating Equipment Factory; XI-AN METALLURGICAL CONSTRUCTION COLLEGE
Current assignee: Xi'an Aero-Engine Corp Hongqi Heating And Ventilating Equipment Factory; XI-AN METALLURGICAL CONSTRUCTION COLLEGE
Priority date: 1989-03-23
Filing date: 1989-03-23
Publication date: 1989-11-01

Abstract

The utility model discloses an annular metallic belt used for conveyance or transmission. The annular metallic belt is composed of a seamless annular metallic belt. The cross-section of the annular metallic belt along the transverse direction is convex outwards. That is to say, the thickness of the annular metallic belt along the transverse direction is decreased from the middle part to both sides. The phenomenon that an annular metallic belt with a seam is frequently damaged along the welding seam, and microcracks are easily arranged at the side and are further expanded to make the annular metallic belt with a seam be damaged can be avoided. Therefore, the service life of the annular metallic belt is extended. The annular metallic belt of the utility model can be used for various machines and equipment adopting annular metallic belts as fittings used for conveyance or transmission.

Description

Metallic endless belt

The utility model relates to a kind of transmission or driving band, is a kind of annular metal band in order to transmission or transmission specifically.

Existing machinery, employed annular metal band on the equipment in order to transmission or transmission, because wall thickness is thinner, diameter is bigger, general all is with needed metal rolled behind the thickness that requires, cut into the metal tape of strip again, the way that the two ends of strip metal band are tied with weldering couples together then, thereby make a kind of endless metal belt that seam (or joint is arranged) arranged, as on the cigarette machine in order to the air compartment band that transmits pipe tobacco etc., these endless belt have following shortcoming usually: the first, and the crystalline granular texture of weldering knot marginal portion has changed, and has produced the tissue as alloy, thereby the intensity of weld metal zone is reduced greatly, become the weakness zone that low antifatigue is destroyed; Second, they normally are enclosed within the position-limited trough of two runners, when runner rotates, both born fluctuating circulating stress, bear tension force again, its edge produces tiny crack because of the wearing and tearing that often are subjected to the position-limited trough sidewall again, the section of this band of condition generally is a rectangle or irregularly shaped, and when endless belt had side-bend slightly, effect tension force was on tape just concentrated to a side of band significantly, thereby aggravate the formation and the expansion of this side tiny crack, belt conveyor or driving band are destroyed.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of seamless, durable endless metal belt is provided.

The purpose of this utility model can realize by following measure: a kind of endless metal belt, formed by the annular metal band, its special character is: said annular metal band is seamless annular metal band, the transversal surface of this annular metal band is spirogyrate, and promptly the Width thickness along band is reduced to both sides by the middle part.

Seamless annular metal band in the above-mentioned measure can be seamless ring-type stainless steel strip.

Can be evenly equipped with breather port 2 on the seamless annular metal band in the above-mentioned measure.

Accompanying drawing has been described an embodiment of the present utility model.

Fig. 1 is the front view of this embodiment;

Fig. 2 is this embodiment expansion drawing along its length;

Fig. 3 is the cross sectional drawing (not marking breather port among the figure) of this embodiment broad ways.

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing:

Accompanying drawing embodiment is in order to transmit the air compartment band of pipe tobacco on the cigarette machine, the length of run of band is 3290mm, this air compartment band is made up of by the seamless ring-type stainless steel strip 1 of 0.2mm a thickness, on endless belt, be provided with several breather ports 2, the section 3 of this endless belt broad ways is spirogyrate, promptly its thickness of Width along band successively decreases to both sides, and its thickness difference is generally at 0.002～0.05mm.

This embodiment can make by the following method:

One, gets the raw materials ready: at first obtain the stainless steel metal ring from the tubular blank cutting of seamless stainless steel;

Two, rolling: as described becket to be enclosed within on the bottom working roll of two-roller mill, and use idler roller to strain, this bottom working roll can move rapidly vertically, this idler roller can be with the increase of becket length away from bottom working roll, to guarantee that becket is rolled under the tension force effect, by roll forming control, the transversal surface of becket is rolled into spirogyrate, after being rolled down to the thickness of requirement and length, takes out described becket.

Three, aligning: the becket after rolling is strained with two round rollers, and one of them can move with the increase of becket length, goes for a stroll curved roll, smoothing roll when moving continuously when the becket that has been tightened up, and the becket after rolling is aligned.

Four, make: with the becket width cutting marginal portion as required behind rolling, the aligning, on becket, go out breather port then, can obtain on the cigarette machine in order to transmit the air compartment band of pipe tobacco.This air compartment band is seamless, and the section of broad ways is spirogyrate.

We can find out in conjunction with above embodiment, and the utility model compared with prior art has following advantage:

1, do not have weld seam in the endless belt, thereby the performances such as the intensity of whole endless belt, hardness are uniformly, are difficult for breaking along certain.

2, because the section of endless belt broad ways is spirogyrate, namely the width thickness along band is successively decreased to both sides by the middle part. Like this when endless belt when moving runner turns round, act on the central region that tension force on the conveyer belt is mainly band and bear, the tension force that its edge bears reduces greatly; In addition, when the lateral thrust of endless belt is little, can guarantee that still tension force acts on the middle part of band basically, avoid tension force to concentrate to a side, thereby this band can slow down formation and the expansion of limit section micro-crack greatly.

3, because above two advantages so that greatly prolong the service life of this endless belt, can reach now girdled 2～3 times.

Claims

1, a kind of endless metal belt is made up of the annular metal band, it is characterized in that: said annular metal band is seamless annular metal band, and the transversal surface of this annular metal band is spirogyrate, and promptly the Width thickness along band is reduced to both sides by the middle part.

2, according to the described endless metal belt of claim 1, it is characterized in that: said seamless annular metal band is seamless ring-type stainless steel strip.

3, according to claim 1 or 2 described endless metal belts, it is characterized in that: be evenly equipped with breather port 2 on the said seamless annular metal band.