CN222880232U - Variable-pitch stop block reinforcing chain - Google Patents

Abstract

The utility model relates to a variable-pitch stop block reinforced chain, which comprises a plurality of connecting plates and a plurality of chain links which are connected in a staggered manner, wherein two connecting holes are formed in the connecting plates, two adjacent chain links of the connecting plates respectively penetrate through the two connecting holes, two sides of the connecting plates are planes, two ends in the length direction of the connecting plates are convex arc surfaces protruding outwards, two ends in the width direction of the connecting plates are concave arc surfaces recessed inwards, the arc end parts of the concave arc surfaces are connected with the arc end parts of the convex arc surfaces, the two adjacent chain links are connected through the connecting plates, the two connecting holes in the connecting plates can realize separation between the two chain links, dislocation of the two chain links is prevented, the connecting plates can be formed through forging or casting, the processing is convenient, the connection between the adjacent connecting plates is realized through the chain links, the concave arc surfaces of the connecting plates are attached to the outer circumferential surfaces of chain wheels of a scraper conveyor, the contact area is increased, the abrasion is reduced, and the service life of the whole chain is prolonged.

Description

Variable-pitch stop block reinforcing chain

Technical Field

The utility model relates to the technical field of chains, in particular to a variable-pitch stop block reinforced chain.

Background

The chain comprises a plurality of metal chain links, the chain link includes two sharp portions and connects two arc portions of two sharp portions, the face of two sharp portions homonymy on the same chain link is the side, the face that two sharp portions kept away from each other on the same chain link is the terminal surface, in scraper conveyor's chain transmission system, the chain link is divided into flat ring and standing ring according to the state when using, the side and the sprocket laminating of flat ring, the terminal surface and the sprocket laminating of standing ring, flat ring and standing ring staggered connection in proper order, in the driven in-process of chain is driven to the sprocket, the arc portion of two flat rings is located the standing ring, if the chain has certain not hard up, then probably lead to two flat rings to take place the dislocation in standing ring, influence the transmission of whole chain.

Disclosure of utility model

The utility model provides a variable-pitch stop block reinforced chain aiming at the defects of the prior art.

The utility model provides a variable-pitch stop block reinforcing chain, which comprises a plurality of connecting plates and a plurality of chain links which are connected in a staggered manner, wherein two connecting holes which are distributed along the length direction are formed in the connecting plates, the connecting holes are round holes, two adjacent chain links of the connecting plates respectively penetrate through the two connecting holes, two sides of the connecting plates are planes, two ends of the connecting plates in the length direction are convex arc surfaces which are outwards protruded, two ends of the connecting plates in the width direction are concave arc surfaces which are inwards recessed, and the arc end parts of the concave arc surfaces are connected with the arc end parts of the convex arc surfaces.

In this scheme connect two adjacent chain links through the connecting plate, two connecting holes on the connecting plate can realize separating between two chain links, prevent that two chain links from taking place the dislocation, and the connecting plate can be through forging or casting shaping, and processing is convenient, realizes being connected between the adjacent connecting plate through the chain link, realizes the connection of whole chain, and the concave arcwall face of connecting plate is laminated with the sprocket outer periphery of scraper conveyor, improves area of contact, reduces wearing and tearing, improves the life of whole chain.

Preferably, the convex arc surface is concentric with the connecting hole. Therefore, the tension of the chain ring received by the connecting holes can be uniformly transmitted to the end part of the connecting plate, so that the stress is uniform.

As optimization, both sides of the connecting plate are provided with forging grooves between the two connecting holes. Through the forging and pressing groove that sets up, extrude panel to connecting hole and concave arcwall face direction, improve the intensity and the wear resistance of these two positions.

As optimization, one end of the forging groove close to the concave arc-shaped surface is parallel to the concave arc-shaped surface, and one end of the forging groove close to the connecting hole is parallel to the connecting hole. Thereby improving the strength of the concave arc surface and the connecting hole.

As optimization, the hole wall of the connecting hole is an arc-shaped surface protruding towards the center of the hole along the depth direction, the radius is R, the radius of the inner hole of the chain ring is R, and the R=r. Thereby improving the contact area between the inner hole of the chain ring and the connecting hole and improving the wear resistance.

Preferably, the chain link comprises a chain link straight part and a chain link arc part, and the cross sections of the chain link straight part and the chain link arc part are circular. Thereby forming the chain link by bending the round bar.

Preferably, the length of the connecting plate is greater than the length of the chain ring. Thereby improving the contact length between the connecting plate and the chain wheel and prolonging the service life of the whole chain.

The variable-pitch stop block reinforced chain has the beneficial effects that two adjacent chain links are connected through the connecting plate, the separation between the two chain links can be realized through the two connecting holes on the connecting plate, the two chain links are prevented from being misplaced, the connecting plate can be formed by forging or casting, the processing is convenient, the connection between the adjacent connecting plates is realized through the chain links, the connection of the whole chain is realized, the concave arc-shaped surface of the connecting plate is attached to the outer circumferential surface of the chain wheel of the scraper conveyor, the contact area is increased, the abrasion is reduced, and the service life of the whole chain is prolonged.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a front view of the connection plate of the present utility model;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 1 in accordance with the present utility model;

FIG. 4 is a cross-sectional view taken along the B-B plane in FIG. 1 in accordance with the present utility model;

FIG. 5 is a front view of the chainring of the present utility model;

the figure shows:

1. The connecting plate, 2, the chain ring, 21, the chain ring straight line part, 22, the chain ring arc part, 3, the connecting hole, 4 and the forging groove.

Detailed Description

In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.

As shown in fig. 1 to 5, the variable-pitch block reinforced chain comprises a plurality of connecting plates 1 and a plurality of chain links 2 which are connected in a staggered manner, wherein the chain links 2 are ring chain links commonly used in the prior art, each chain link 2 comprises a chain link straight line part 21 and a chain link arc part 22, the cross sections of the chain link straight line parts 21 and the chain link arc parts 22 are circular, and during processing, the whole chain link is formed by bending a piece of round steel and is welded at a butt joint after bending.

The connecting plate 1 is a strip-shaped metal flat plate, two connecting holes 3 distributed along the length direction are formed in the connecting plate 1, the connecting holes 3 are round holes, two adjacent chain rings of the connecting plate 1 respectively penetrate through the two connecting holes 3, and the diameter of each connecting hole 3 is larger than that of each chain ring.

The two sides of the connecting plate 1 are planes, the thickness of the connecting plate 1 is 0.7-1.1 times of the diameter of the chain ring, as shown in figures 1 and 2, the two ends of the connecting plate 1 in the length direction are convex arc surfaces protruding outwards, and the convex arc surfaces are concentric with the connecting hole 3.

The two ends of the width direction of the connecting plate 1 are concave arc surfaces which are concave inwards, the arc end parts of the concave arc surfaces are connected with the arc end parts of the convex arc surfaces, and the outline of the outer ring of the connecting plate 1 is the same on each thickness section.

Both sides of the connecting plate 1 are provided with forging grooves 4 between the two connecting holes 3. The forging groove 4 is a sinking groove with a plane bottom, and the depth of the forging groove 4 is 0.1-0.3 times of the thickness of the connecting plate.

One end of the forging groove 4, which is close to the concave arc surface, is parallel to the concave arc surface, one end of the forging groove 4, which is close to the connecting hole 3, is parallel to the connecting hole 3, and as the forging groove is formed by forging and pressing on the planes of the two sides, the plate is extruded towards the connecting hole and the concave arc surface, and the strength and the wear resistance of the two positions are improved.

As shown in fig. 4 and 5, the hole wall of the connecting hole 3 is an arc surface protruding toward the center of the hole in the depth direction, the radius is R, the radius of the inner hole of the chain ring 2 is R, and r=r. Thereby improving the contact area between the inner hole of the chain ring and the connecting hole and improving the wear resistance.

The length of the connecting plate 1 is greater than the length of the chain ring 2. Thereby improving the contact length between the connecting plate and the chain wheel and prolonging the service life of the whole chain.

When processing, firstly processing required quantity of connecting plates 1, the connecting plates can be formed by casting or forging, then the round steel is heated and then is bent to form chain rings, and when the chain rings are bent, the connecting plates pass through two adjacent connecting plates, so that the connection of the two connecting plates is realized, and the butt joint surface of the chain rings after bending is subjected to welding deburring operation, so that the processing and forming of the whole chain are realized.

It should be understood that the foregoing embodiments and the accompanying drawings are only for illustrating the technical aspects of the present utility model, but not for limiting the present utility model, and that the present utility model is not limited to the preferred embodiments, and that the changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present utility model will not depart from the spirit and scope of the present utility model as defined in the appended claims.

Claims (7)

1. A variable-pitch stop block reinforcing chain is characterized by comprising a plurality of connecting plates (1) and a plurality of chain rings (2) which are connected in a staggered manner, wherein two connecting holes (3) which are distributed along the length direction are formed in the connecting plates (1), the connecting holes (3) are round holes, two adjacent chain rings of the connecting plates (1) respectively penetrate through the two connecting holes (3), two sides of the connecting plates (1) are planes, two ends of the length direction of the connecting plates (1) are convex arc surfaces which are outwards protruded, two ends of the width direction of the connecting plates (1) are concave arc surfaces which are inwards recessed, and the arc end parts of the concave arc surfaces are connected with the arc end parts of the convex arc surfaces.

2. A variable pitch block reinforcement chain as set forth in claim 1, wherein said convex arcuate surface is concentric with the attachment hole (3).

3. A variable pitch block reinforcement chain as set forth in claim 1, wherein said web (1) has forging grooves (4) on both sides thereof between two connecting holes (3).

4. A variable pitch reinforcement chain for a stopper according to claim 3, wherein the end of the forging groove (4) adjacent to the concave arc surface is parallel to the concave arc surface, and the end of the forging groove (4) adjacent to the connecting hole (3) is parallel to the connecting hole (3).

5. A variable pitch stopper reinforced chain as claimed in claim 1, wherein the wall of said connecting hole (3) has an arcuate surface projecting toward the center of the hole in the depth direction and has a radius R, and the inner hole of the link (2) has a radius R, said R=r.

6. A variable pitch block reinforcement chain as set forth in claim 1, wherein said link (2) comprises a link straight portion (21) and a link arcuate portion (22), said link straight portion (21) and link arcuate portion (22) each being circular in cross-section.

7. A variable pitch block reinforcement chain as claimed in claim 1, wherein the length of the web (1) is greater than the length of the links (2).