CN2227633Y

CN2227633Y - Arc tooth flat connecting ring for mining ring chain

Info

Publication number: CN2227633Y
Application number: CN 95208182
Authority: CN
Inventors: 贾鸿轩
Original assignee: Individual
Current assignee: Jia Hongxuan
Priority date: 1995-04-19
Filing date: 1995-04-19
Publication date: 1996-05-22
Anticipated expiration: 2005-04-19

Abstract

The utility model relates to an arc-shaped tooth flat connecting ring for a mining ring chain, which is composed of two identical half ring bodies, a center pin, a spring collar and a rubber pad. The center pin is arranged at the intermediate section of the half ring body. Two ring grooves are arranged on the inner wall. Two rows of arc-shaped teeth are arranged on the half ring body, and tenons and tenon grooves are respectively arranged at both sides of the half ring body. The utility model is characterized in that the number of the teeth is reasonably determined by the size of the chain ring, a tooth surface slopes by ten degrees, the curvature radius of a tooth point is small, the curvature radius of the tooth surface is big, the transition of a tooth root is by means of a circular arc, the inner chamfer angles of external teeth section are all forty-five degrees, size B is larger than the thickness of the connecting ring with the same specification, a ring groove, in which a rubber pad and a rubber pad are arranged, is arranged on the outer margin of the center pin. The service life of the ring chain is extended by means of the structure.

Description

The circle chain of mine Flat Link with Arc Tooth

The utility model relates to the annex of mining machinery, refers to coalcutter especially, the circle chain of mine Flat Link with Arc Tooth of using on the equipment such as coal plough and slat conveyer.

At present, the chain ring of domestic circle chain of mine, kind is more, roughly is divided into serration type and side dump two big classes.Referring to Fig. 9, they are by hemizonid A, and C and resilient pin B form.Owing to their structural limitations, all can't stably reach the technical index of GB.Wherein with the flat chain ring of the immediate larger radius of curvature circle-arc tooth of the utility model, because the radius of curvature of tooth top is not inconsistent each other, make between tooth and tooth paddy and have the gap, stressed back produces dislocation relatively, external force is delivered on the center pin, it is come off, and its bending strength is lower, and the chain rupture phenomenon takes place easily.

The purpose of this utility model is to provide a kind of bending strength big, and the gap between tooth and tooth paddy is little, the circle chain of mine Flat Link with Arc Tooth of center pin difficult drop-off, the service life of improving round-link chain.

The purpose of this utility model is achieved in that the circle chain of mine Flat Link with Arc Tooth is by two identical hemizonids, center pin, trip ring and rubber pad are formed, the hemizonid centre portion is provided with kingpin hole, the twice annular groove is arranged on the inwall, have on the hemizonid on its both sides of double arc tooth tenon and tongue-and-groove are arranged respectively, it is characterized in that: the number of teeth is rationally to be determined by the size of chain link, the flank of tooth tilts 10 °, the tooth top radius of curvature is little, flank of tooth radius of curvature is big, the tooth root arc transition, the interior chamfering of external tooth part is 45 °, and size B is greater than the thickness of same specification chain ring, on the center pin outer rim annular groove is arranged, interior dress rubber pad and trip ring.

The utility model has the advantages that the tooth top radius of curvature is little, flank of tooth radius of curvature is big, the tooth root arc transition is guaranteed its precision by processing, not only can improve the bending strength of tooth, and, do not produce relative dislocation, polarization is good, the center pin difficult drop-off, the service life of round-link chain can be obviously improved, the GB technical index can be reached fully.Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof:

Fig. 1 always schemes for the utility model first embodiment.

Fig. 2 is the utility model hemizonid front view.

Fig. 3 is the P-P cutaway view of Fig. 2.

Fig. 4 is the birds-eye view of Fig. 2.

Fig. 5 is 1 enlarged drawing of Fig. 2.

Fig. 6 is the A-A cutaway view of Fig. 2.

Fig. 7 is the utility model center pin cutaway view.

Fig. 8 always schemes for the utility model second embodiment.

Fig. 9 always schemes for existing serration type chain ring.

Referring to Fig. 1-7, for the utility model first embodiment is four tooth circle chain of mine Flat Link with Arc Tooth.It is by two identical hemizonids 1,3, center pin 2, and trip ring 5 and rubber pad 4 are formed.Hemizonid 1,3 centre portions have individual kingpin hole, and twice annular groove 17 is arranged on the inwall.Double arc tooth 13,33 is arranged on the hemizonid 1,3, tenon 11,31 and tongue-and-groove 12,32 are arranged respectively on its both sides.It is characterized in that: the arc number of teeth is four; The flank of tooth 16 tilts 10 °, and tooth top 15 radiuss of curvature are little, and the flank of tooth 16 radiuss of curvature are big, the tooth root arc transition, and the interior chamfering of external tooth part is 45 °, and size B is greater than the thickness of same specification chain ring, in order to the installation of two hemizonids, and guarantees its precision by processing; There is groove 21 at the outer rim middle part of center pin 2, dress rubber pad 4 and trip ring 5 in the groove 21.

During chain link, at first install rubber pad on the center pin 24 and trip ring 5 standby.Hemizonid of each sleeve 1,3 on round-link chain initial and end two rings that will peg graft.Arc tooth 13,33 on the hemizonid 1,3 and tenon 11,31 are inserted into respectively in the other side's the tooth paddy 14,34 and tongue-and-groove 12,32.At last center pin 2 is compressed into kingpin hole, round-link chain promptly connects into whole 3.Referring to Fig. 8, the utility model second embodiment is three tooth circle chain of mine Flat Link with Arc Tooth.It reasonably adopts outside three arc teeth except the size by chain link, and other structure is all identical with first embodiment.

Claims

1, the circle chain of mine Flat Link with Arc Tooth is by two identical hemizonids, center pin, trip ring and rubber pad are formed, the hemizonid centre portion is provided with kingpin hole, the twice annular groove is arranged on the inwall, double arc tooth is arranged on the hemizonid, tenon and tongue-and-groove are arranged respectively on its both sides, it is characterized in that: the number of teeth is rationally to be determined by the size of chain link, the flank of tooth tilts 10 °, the tooth top radius of curvature is little, and flank of tooth radius of curvature is big, the tooth root arc transition, the interior chamfering of external tooth part is 45 °, size B has annular groove greater than the thickness of same specification chain ring on the center pin outer rim, interior dress rubber pad and trip ring.

2, circle chain of mine Flat Link with Arc Tooth according to claim 1 is characterized in that: the number of teeth of arc tooth can rationally be defined as three teeth or four teeth by the size of chain link.