CN111360492A

CN111360492A - Combined chain wheel gear ring

Info

Publication number: CN111360492A
Application number: CN202010252586.6A
Authority: CN
Inventors: 王敦军; 李爱华; 王宇; 张伯韧; 周凤波; 冯骥强; 陈海霞; 李洪德; 吴建华; 何占松
Original assignee: Qiqihar Agricultural Mechanization Research Institute Of Heilongjiang Academy Of Agricultural Machinery Sciences
Current assignee: Qiqihar Agricultural Mechanization Research Institute Of Heilongjiang Academy Of Agricultural Machinery Sciences
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-07-03

Abstract

A combined chain wheel gear ring is composed of an upper supporting ring, a lower supporting ring, eight middle toothed plates and high-strength bolts. The eight intermediate toothed plates are inserted end to end and tightly connected to form a circular ring, and are fastened and connected with the upper supporting ring and the lower supporting ring through high-strength bolts. The upper supporting ring and the lower supporting ring are symmetrical parts, eight equal-division arc plates are inserted and tightly connected end to form two circular rings in a splicing manner, the joints of the circular rings are welded, and then the two circular rings are polished to be smooth in opposite planes. When mechanical equipment is installed, an upper supporting ring and a lower supporting ring in the combined chain wheel gear ring can be welded on required equipment to work, when a certain intermediate toothed plate is partially worn, a high-strength bolt is unscrewed, the worn intermediate toothed plate is replaced, the intermediate toothed plate, the upper supporting ring and the lower supporting ring which are recombined are fastened and connected by the high-strength bolt, and the operation is continued.

Description

Combined chain wheel gear ring

Technical Field

The invention relates to a combined chain wheel gear ring applied to large and medium-sized mechanical equipment, belonging to the technical field of mechanical manufacturing.

Background

At present, the general method of processing sprocket ring gear is to place the sprocket blank on special machine tool and carry out whole processing, but along with the continuous grow of mechanical equipment size, the required sprocket ring gear diameter of equipment is also constantly increasing, because current special machine tool machining range is limited, cause large-scale sprocket ring gear processing degree of difficulty to increase, moreover, along with the increase of sprocket ring gear diameter, the size of required sprocket blank also is increasing, a large-scale sprocket ring gear of processing completion has a large amount of surplus blanks, and whole sprocket ring gear is in the use, if certain sprocket tooth takes place wearing and tearing and can not use, then need to change whole sprocket ring gear, also increased equipment use cost when causing a large amount of wastes. Some manufacturers adopt combined chain wheels, but the machining precision is difficult to guarantee, so that the transmission of a chain wheel gear ring cannot meet the requirement, and meanwhile, the safety of the combined chain wheel gear ring is low, and the combined chain wheel gear ring cannot be popularized and applied.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a combined chain wheel gear ring.

The technical scheme adopted by the invention is as follows: a combined chain wheel gear ring is composed of an upper supporting ring, a lower supporting ring, eight middle toothed plates and high-strength bolts. The eight intermediate toothed plates are inserted end to end and tightly connected to form a circular ring, and are fastened and connected with the upper supporting ring and the lower supporting ring through high-strength bolts. During the processing of the eight intermediate toothed plates, firstly, eight equally-divided arc plates with S-shaped two ends are cut on a chain wheel blank by an automatic laser cutting machine, the upper and lower radians of the S-shaped arc plates are semi-circles, the eight equally-divided arc plates can be inserted end to end and tightly connected, three connecting through holes are cut on each equally-divided arc plate by laser, then the eight equally-divided arc plates are processed into the required chain wheel tooth form by a chamfering machine respectively, and are subjected to heat treatment to form the eight intermediate toothed plates after the processing treatment.

The other main technical characteristics of the invention are as follows: the upper supporting ring and the lower supporting ring are symmetrical parts and are respectively formed by welding eight equal-dividing arc-shaped plates, the eight equal-dividing arc-shaped plates are respectively cut by an automatic laser cutting machine during machining, two ends of each equal-dividing arc-shaped plate are S-shaped, the upper radian and the lower radian of each S-shaped are semi-circles, each eight equal-dividing arc-shaped plates can be inserted end to end through the S-shaped plates and are tightly connected, three connecting through holes corresponding to the middle toothed plate are simultaneously cut out on each equal-dividing arc-shaped plate in a laser mode, then the eight equal-dividing arc-shaped plates are respectively inserted on a special welding platform and are welded into circular rings, the two circular rings are polished to be flat in opposite planes, and the upper supporting ring.

The invention has the beneficial effects that: the eight middle toothed plates, the upper supporting ring and the lower supporting ring of the combined chain wheel gear ring are all cut by an automatic laser cutting machine, the precision is high, the strength of the combined chain wheel gear ring is high, the safety is high, and the combined chain wheel gear ring has the same using effect as the chain wheel gear ring integrally processed and formed at one time; simultaneously, because eight intermediate tooth plates are the active connection, simple structure, the change of being convenient for can change the intermediate tooth plate that wears off at any time when sprocket ring gear appears local wear in the use, continues to use after the combination, greatly reduced equipment use cost.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic front view of the present invention.

FIG. 2 is a sectional view of a front view of the structure of the present invention.

Fig. 3 is a schematic view of the structure of the intermediate toothed plate of the present invention.

Figure 4 is a schematic view of an equal arc of the upper and lower support rings of the present invention.

In the figures 1, 2 and 3, 1 is an intermediate toothed plate, 2 is a high-strength bolt, 3 is an upper supporting ring, and 4 is a lower supporting ring.

Fig. 4, 5, bisects the arc plate.

Detailed Description

The design purpose of the invention is realized as follows: a combined chain wheel gear ring comprises a middle toothed plate 1, a high-strength bolt 2, an upper supporting ring 3 and a lower supporting ring 4.

Every eight evenly-divided arc plates (5) are inserted and tightly connected end to form two circular rings in a splicing mode, the S-shaped connection position of each circular ring is firmly welded on a special welding platform, the opposite planes of the two circular rings are polished to be flat, and two symmetrical upper supporting rings (3) and two symmetrical lower supporting rings (4) are formed. The eight intermediate toothed plates (1) are inserted and tightly connected end to end along the S shape to form a circular ring in a splicing mode, the circular ring is clamped in the upper supporting ring (3) and the lower supporting ring (4), meanwhile, the splicing position of each intermediate toothed plate (1) is staggered with the welding position of the upper supporting ring (3) and the welding position of the lower supporting ring (4), and the eight intermediate toothed plates are fastened and connected through the high-strength bolts (2), so that a combined chain wheel gear ring is formed.

When mechanical equipment installs, can weld upper supporting ring (3) and lower supporting ring (4) among the combination formula sprocket ring gear and carry out work on the equipment that needs, when local wear appears in some intermediate tooth plate (1), unscrew high strength bolt (2), change the intermediate tooth plate (1) of wearing and tearing, reuse high strength bolt (2) will be recombined intermediate tooth plate (1), upper supporting ring (3), lower supporting ring (4) are all screwed up, continue work.

Claims

1. A combined chain wheel gear ring is characterized by comprising an upper supporting ring, a lower supporting ring, eight intermediate toothed plates and high-strength bolts, wherein the eight intermediate toothed plates are inserted and tightly connected end to form a circular ring, the circular ring is tightly connected with the upper supporting ring and the lower supporting ring through the high-strength bolts, when the eight intermediate toothed plates are machined, firstly, an automatic laser cutting machine is used for cutting eight equally-divided arc plates with S-shaped ends on a chain wheel blank, the upper radian and the lower radian of the S-shaped arc plates are semi-circles, the eight equally-divided arc plates can be inserted and tightly connected end to end through the S-shaped arcs, three connecting through holes are simultaneously cut on each equally-divided arc plate through laser, then the eight equally-divided arc plates are respectively machined into required tooth-shaped chain wheel teeth by a chamfering machine, and then, heat treatment is carried out, and.

2. The combined sprocket ring gear according to claim 1, wherein the upper and lower support rings are symmetrical and are each formed by welding eight equally divided arc plates, the eight equally divided arc plates are respectively cut by an automatic laser cutting machine during machining, both ends of each equally divided arc plate are S-shaped, the upper and lower arcs of each S-shaped are semi-circles, each eight equally divided arc plates can be inserted and tightly connected end to end through the S-shape, three connecting through holes corresponding to the intermediate toothed plate are simultaneously laser cut on each equally divided arc plate, then the eight equally divided arc plates are respectively inserted and welded into rings on a special welding platform, and the two rings are ground and flattened towards the plane to form the upper and lower support rings.