CN2584942Y

CN2584942Y - Force symmetry type multi-pin axial chain

Info

Publication number: CN2584942Y
Application number: CN 02289113
Authority: CN
Inventors: 张广义; 封红伟
Original assignee: SANHE GREAT WALL CONVEYER Manufacturing
Current assignee: SANHE GREAT WALL CONVEYER Manufacturing
Priority date: 2002-12-05
Filing date: 2002-12-05
Publication date: 2003-11-05
Anticipated expiration: 2012-12-05

Abstract

The utility model relates to a force symmetry type multi-plate pin shaft chain. A diameter on the middle part of the pin shaft is thicker, and diameters on both ends are thinner; a roller is arranged on the upper side of the middle part of the pin shaft; the pin shaft penetrates through an inner chain plate, a middle chain plate and an outer chain plate, and is provided with a check ring; both ends of the pin shaft are fixedly riveted; because the roller is matched with the pin shaft by gaps to flexibly rotate, each chain plate is matched with the pin shaft by gaps to flexibly rotate. The structure uses a combination way of two thick chain plates and three thin chain plates; the stressed force is uniform and symmetrical without any additional bending moment occurring; the roller and the pin shaft are not easy to abrade. The utility model uses the heat-resistant check ring with long service life; the chain is not easy to stretch and to deform with safe and reliable use.

Description

Many plates of force symmetry type bearing pin chain

Technical field

The utility model relates to a kind of many plates of force symmetry type bearing pin chain, is the major component of noria structure, belongs to the field of link chain mechanism.

Background technique

Noria is a equipment that promote to carry bulk material, owing to be dust erosion corrosion, impact, some material also has high temperature, and is continuous, heavily loaded operating conditions, and chain drive must reliable operation, the life-span is long.At present at the board-like bush roller chain of the conveyor of industries such as non-ferrous metal, cement, its sleeve and inner plate are interference fit, form inner link with roller, roller sleeve is a Spielpassung, and roller is free to rotate on sleeve, bearing pin and outer plate interference fit, become outer link with pivot pin, axle is a Spielpassung with sleeve, and interior outer link is composed in series chain, and the hinge between inner chain link outer link connects.This structure obviously makes the asymmetric distribution of carrier bar, its shortcoming is as wanting to improve bearing pin intensity, can only increase pin diameter, the chain deadweight obviously being increased, the asymmetric distribution of carrier bar has also caused additional moment, make the stressed increase of bearing pin, weaken its intensity, bearing pin produces disrumpent feelings phenomenon because of curved moment, also make the increase of the power on the unit area between bearing pin, the sleeve on the other hand, make the wearing and tearing of bearing pin and sleeve, very easily make the chain length elongation, lost efficacy to cause chain.

Summary of the invention

Order of the present utility model is that a kind of many plates of force symmetry type bearing pin chain will be provided, and it can overcome above-mentioned shortcoming, make carrier bar connect into symmetrical structure, thereby power is distributed symmetrically evenly.

The structure of many plates of force symmetry type bearing pin chain is: bearing pin middle part diameter is thicker, and the both sides diameter is thinner, and roller is contained in above the bearing pin middle part, and bearing pin passes whole carrier bars, loads onto ring washer, bearing pin two ends rivet clasp.

The advantage of many plates of force symmetry type bearing pin chain is: carrier bar is symmetrically distributed, there is not additional moment, and increased the shearing of bearing pin, effectively utilize the potential of material, the deadweight load ratio of chain is greatly reduced, improved the intensity of chain effectively, it is original more than 2.5～3 times of board-like sleeve that the chain of same deadweight can make its bearing capacity.

Description of drawings:

Fig. 1: the schematic representation of many plates of force symmetry type bearing pin chain;

The plan view of Fig. 2: Fig. 1.

By Fig. 1,2, bearing pin (1) middle part diameter is thicker, and the both sides diameter is thinner, and roller (2) is contained in above bearing pin (1) middle part, becomes Spielpassung, thereby can rotate flexibly.Outer plate (7), intermediate plate (5), inner plate (3) is the carrier bar of same thickness, one side of bearing pin (1) is passed inner plate (3), intermediate plate (4,5,6) and outer plate (7), refill ring washer (8), the riveted joint of bearing pin (1) two ends, ring washer (8) has resistance to heat, each carrier bar (3,4,5,6,7) be Spielpassung with bearing pin (1), thereby rotate flexibly, and the bearing pin both sides are symmetrical, because bearing pin (1) both sides diameter is thin, the thickness of its intermediate plate (4) (6) is coarser than interior outer plate (3) (7) and intermediate plate (5), and its width of the outer plate of outermost (7) is bigger, four angles of its rectangle are all by amputation, and end face has 4 apertures (10).Concrete enforcement formula:

This bearing pin chain is by two thicker intermediate plates (4; 6); with three thin inner plates (3); outer plate (7) and intermediate plate (5) combine (as Fig. 1; shown in 2); the diameter at bearing pin (1) middle part is thicker in addition; roller (2) is a Spielpassung with bearing pin (1); so can rotate flexibly; above-mentioned carrier bar is combined to be the shape of a symmetry; three blocks of carrier bars (3; 5; 7) the thickness sum equates with two intermediate plates (4) (6) sum, makes stressed being distributed symmetrically evenly, and ring washer (8) has resistance to heat; thereby the life-span is long; not fragile, roller plays buffering and uses, and also has the characteristic of protection; because power symmetrically and evenly; there is not additional bending moment yet, bearing pin two ends local heating rivet clasp, switching performance is good.

Claims

1, a kind of many plates of force symmetry type bearing pin chain is characterized in that: bearing pin (1) middle part diameter is thicker, and the both sides diameter is thinner, roller (2) is contained in above bearing pin (1) middle part, bearing pin (1) passes inner plate (3) intermediate plate (4) (5) (6) and outer plate (7), loads onto ring washer (8), bearing pin two ends rivet clasp.

2, many plates of force symmetry type bearing pin chain according to claim 1, it is characterized in that: intermediate plate (4) (6) is thicker than other carrier bars.