CN2238352Y

CN2238352Y - Dismountable chain wheel

Info

Publication number: CN2238352Y
Application number: CN 95204740
Authority: CN
Inventors: 钟永祺; 张慧兰
Original assignee: HUANGXU CABLE CHAIN FACTORY ZHENJIANG CITY
Current assignee: HUANGXU CABLE CHAIN FACTORY ZHENJIANG CITY
Priority date: 1995-03-16
Filing date: 1995-03-16
Publication date: 1996-10-23
Anticipated expiration: 2005-03-16

Abstract

The utility model relates to a dismountable chain wheel, which is used in a welding chain drive. The utility model is composed of a boss, two blocks of left and right symmetrical basin shape spokes and an inner liner ring which are made separately. Two basin openings face two sides of outer spokes which are arranged on the flange of the outer margin of the boss and are connected by a fastening piece. The inner liner ring is arranged at the middle of one side of two spokes near an end margin and is connected by the fastening piece. The outer margin of the inner liner ring and the end margins of spokes form a groove shape to contain the side body of a chain. The utility model has the advantages of simple structure and large stiffness. The utility model can be made without any large size processing equipment. The section of a chain wheel is in a rectangular structure. The spokes are dismounted to be changed after the end margin of the chain wheel is damaged, which extends the service life of the chain wheel.

Description

Removable sprocket wheel

The utility model relate to a kind of for welded chain drive and the traction transmission in use, in particular for carry long rise or carrying means in removable sprocket wheel.

In known technology, for example, sprocket wheel in the 98th page of the nineteen eighty-two China Machine Press " Hoisting Machinery " published, be integrated type cast iron or cast steel sprocket wheel, it is made up of wheel rim, spoke and wheel hub, the shortcoming of this sprocket wheel is: make complicated, need certain main equipment, and sprocket wheel from great, consumptive material is many, especially after wheel wear or partial crushing, can't repair, must scrap by whole sprocket wheel, and more changing jobs of sprocket wheel must all just can be carried out whole chain wheel apparatus axle and bearing thereof etc. after the dismounting, increased maintenance difficult and time, influences the proper functioning running.

The purpose of this utility model provides a kind of simple structure, from heavy and light, good rigidly manufacturing and dismounting all easily, removable sprocket wheel promptly detachable and that change rapidly behind the wheel wear.

In order to achieve the above object, solution of the present utility model is: removable sprocket wheel is by wheel hub, symmetrical two blocks of spokes that become peviform, and inner bushing ring is formed; The wheel hub outer rim has flange, and has certain thickness, the spoke of the one-tenth peviform of two left and right symmetries places the both sides of hub flange respectively, and it is fastening with fastening piece, inner bushing ring places the centre of two bilateral symmetry peviform spokes by ora terminalis one side, fastening with fastening piece, the ora terminalis of the outer rim of inner bushing ring and two spokes forms channel.

The ora terminalis of peviform spoke has the wheel limit.

The peviform spoke can be made into two lobes or many lobes, is connected with connecting plate between lobe and the lobe.

Several are arranged for the tooth that chain drive-belt is used on ora terminalis of peviform spoke, tooth is connected with fastening piece with ora terminalis.

Fig. 1 is the removable sprocket wheel schematic representation that the utility model proposes the belt wheel limit.

Fig. 2 is the removable sprocket wheel schematic representation on not belt wheel limit.

Fig. 3 is that the peviform spoke is made bivalve or multi-clove type, the schematic representation that is connected between lobe and the lobe.

Fig. 4 is the partial structurtes schematic representation that the peviform spoke end has tooth.

The peviform spoke can be with steel plate or other sheet alloy press forming, and its ora terminalis can be made into band edge, as Fig. 1, also can be made into band edge not as Fig. 2.The basin mouth of peviform spoke (2) is outside, a left side, right symmetry is installed in flange (5) both sides of wheel hub (1), use fastening piece, as bright bolt, nut, methods such as lock washer or light system rivet are fastening, inner bushing ring (3) is clipped in the centre of two symmetrical peviform spokes (2) by ora terminalis one side, also use fastening piece fastening, the concave shaped space that inner bushing ring (3) outer rim and two peviform spoke (2) ora terminalis (6) form is so that hold chain, the thickness of the flange (5) on wheel hub (1) outer rim and the thickness of inner bushing ring (3) are decided by the diameter of chain, are advisable to hold chain link size when leaning to one side.Through the wheel hub (1) that fastening piece fuses, the peviform spoke (2) of two left and right symmetries and inner bushing ring (3) have constituted the rectangle combined cross section, have bigger bending resistant section modulus, and the rigidity of sprocket wheel is improved further.

Peviform spoke (2) also can be made into two lobes or multi-clove type, is connected with link (4) between its lobe and the lobe, as shown in Figure 3, local replacing promptly just after the sprocket wheel local damage like this.

In order further to add the moment of torsion that hinge wheel transmits, on the ora terminalis (6) of peviform spoke (2), tooth (8) is arranged, tooth to inner process, is seen Fig. 4 by the race both sides, and the A-A sectional drawing, tooth (8) is fastened on the wheel rim (6) with fastening piece.The number of tooth is decided on the pitch of chain.

The utility model is compared with traditional cast iron, cast-steel integral formula spoke, makes letter Single, without any need for large-sized processing equipment, can produce the big chainlet of arbitrary diameter Wheel, and the sprocket wheel cross section is rectangular configuration, rigidity is big, and is not fragile. Because adopting can Tear the formula structure open, the wearing and tearing of sprocket wheel ora terminalis, part are damaged replaceable, and it is very convenient to install and remove, Both prolonged sprocket wheel service life, reduced cost, save again manpower and when maintenance Between, for enterprise brings bigger economic benefit.

Claims

1. the removable sprocket wheel of using in the confession welded chain transmission has wheel hub (1), it is characterized in that also having two blocks of spokes (2) that become peviforms of left and right symmetry, inner bushing ring (3); Wheel hub (1) outer rim has flange (5), and flange (5) has certain thickness, the peviform spoke (2) of two left and right symmetries places the both sides of wheel hub (1) flange (5) respectively, and it is fastening with fastening piece, inner bushing ring (3) places the centre of two bilateral symmetry peviform spokes (2) by ora terminalis (6) one sides, fastening with fastening piece, the ora terminalis (6) of the outer rim of inner bushing ring (3) and two spokes (2) forms channel.

2. removable sprocket wheel according to claim 1 is characterized in that the ora terminalis (6) of the peviform spoke (2) of described two left and right symmetries has limit (7).

3. described removable sprocket wheel arranged according to claim 1 or 2, it is characterized in that the peviform spoke (2) of described two left and right symmetries can be made into two lobes or many lobes, be connected with connecting plate (4) between lobe and the lobe.

4. removable sprocket wheel according to claim 1 and 2 is characterized in that on the ora terminalis (6) of peviform spoke (2) of described two left and right symmetries several driving gears (8) being arranged, and tooth (8) is connected with fastening piece with wheel rim (6).