CN217081296U

CN217081296U - Automatic sprocket tensioning device

Info

Publication number: CN217081296U
Application number: CN202220633458.0U
Authority: CN
Inventors: 姜伟; 梁晓峰; 梁建生; 薛云高; 谢军
Original assignee: Huanglong Crushing Conveyor Manufacturing Co ltd
Current assignee: Huanglong Crushing Conveyor Manufacturing Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-07-29
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses an automatic tensioning device for a chain wheel, which relates to the technical field of a screening mechanical chain transmission device and comprises a transmission shaft, a box body, a chain wheel set, a chain and a rubber spring automatic tensioning device; the chain wheel set, the chains and the rubber spring automatic tensioning devices are all arranged in the box body, the chain wheel set comprises two chain wheels which are longitudinally arranged and installed on a transmission shaft, one end of the transmission shaft, which is installed with the chain wheel set, is arranged in the box body, the other end of the transmission shaft extends out of the box body, the chains are multiple, each chain is installed on the same number of chain wheels which are transversely arranged, the installation positions of the chains are staggered, and the rubber spring automatic tensioning devices are multiple and are all fixedly installed on the front inner wall and the rear inner wall of the box body below one end of the corresponding chain; the rubber spring automatic tensioning devices comprise mounting seats, rotating arms, tensioning wheels, rubber springs, connecting bolts and fixing shafts. The utility model discloses an automatic rising of sprocket device chain has improved production efficiency greatly, has reduced manufacturing cost.

Description

Automatic chain wheel tensioning device

Technical Field

The utility model relates to a screening machinery chain drive technical field, more specifically relates to an automatic tight device that rises of sprocket is related to.

Background

The process of dividing the material to be crushed into different size fractions by one or more layers of screening surface is called screening. The sieving machine is a vibrating sieving mechanical device which utilizes the relative motion of bulk materials and a sieve surface to lead partial particles to penetrate through sieve pores and divide materials such as sand, gravel, broken stone and the like into different grades according to the particle size, and can be widely applied to the industries of material thickness separation such as coal, ore, power generation, chemical industry, coking, steel, paper making, grain, metal and the like. The screening process of the screening machine is generally continuous, after screening raw materials are fed onto a screening machine (called a screen for short), materials smaller than the size of the screen holes penetrate through the screen holes and are called undersize products; materials with the size larger than the sieve pores are continuously discharged from the sieve surface and are called products on the sieve, and the sieving roller of the sieving machine needs to be driven by a chain on a chain wheel in the working process;

at present, after screening roller drive sprocket of traditional screening machine used a period, there was following defect: firstly, after the chain is used for a period of time, the chain on the chain wheel is lengthened, the chain needs to be fastened, the chain can only be disassembled from redundant chain links manually, and then the chain is re-chain-linked, so that the function of fastening the chain is achieved, for this reason, the chain is time-consuming and labor-consuming to disassemble and install, the operation is required by multiple persons, and the operation is inconvenient due to the limitation of the field working environment; secondly, different screening machines during operation need use the screening roller of different quantity according to its specification, need design the chain of different length according to the quantity of screening roller, and traditional sprocket device can not adjust the length of chain according to the quantity of screening roller at any time, causes production efficiency's reduction.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an automatic tight device that rises of sprocket to there is the chain wheel device on the traditional screening machine screening roller that proposes in solving above-mentioned background art to adjust in time and change in the use, causes the chain to dismantle the installation and wastes time and energy, makes the problem that production efficiency reduces.

The utility model provides a technical scheme that its technical problem adopted is: an automatic chain wheel tensioning device comprises a transmission shaft, a box body, a chain wheel set, a chain and a rubber spring automatic tensioning device;

the chain wheel set, the chains and the automatic rubber spring tensioning devices are all arranged in the box body, the chain wheel set comprises two chain wheels which are longitudinally arranged and installed on a transmission shaft, one end of the transmission shaft, which is installed with the chain wheel set, is arranged in the box body, the other end of the transmission shaft, which extends out of the box body, is provided with a plurality of chains, each chain is installed on the same number of chain wheels which are transversely arranged, the installation positions of the chains are staggered, and the automatic rubber spring tensioning devices are a plurality of automatic rubber spring tensioning devices and are all fixedly installed on the front inner wall and the rear inner wall of the box body below one end of each chain;

the automatic tensioner of tightening of rubber spring all includes mount pad, rocking arm, tight pulley, rubber spring, connecting bolt and fixed axle, the mount pad passes through connecting bolt fixed mounting before the box that corresponds chain one end below, on the back inner wall, the offside that the mount pad is connected with the box is connected with the spliced pole of rocking arm one end, rubber spring is a plurality of all installs in the mount pad and is located the spliced pole around, the rocking arm is connected with the fixed axle for the other end of spliced pole, wear to be equipped with tight pulley that tightens on the fixed axle, tight pulley and the chain butt that corresponds.

Preferably, the mounting seat is of a hollow cubic structure.

Preferably, a gasket is further installed between the installation seat and the connecting bolt.

Preferably, bearings are further arranged at two ends of the tension wheel, the tension wheel is mounted on the fixed shaft through the bearings, and the bearings facilitate rotation of the tension wheel.

Preferably, the rotating arm is provided with an adjusting hole below the rotating arm and connected with the fixed shaft.

Preferably, the automatic tension adjusting range of the automatic rubber spring tensioner is less than or equal to 35 °.

The utility model has the advantages as follows:

one of the problems that the chain on the chain wheel becomes long and needs to be fastened after the traditional chain wheel device is used for a period of time, the chain can only be disassembled by manpower in an unnecessary way, and then the chain is time-consuming and labor-consuming in a chain link mode again;

secondly, the utility model designs the automatic rubber spring tensioning devices comprising the mounting seat, the rotating arm, the tensioning wheel, the rubber springs, the connecting bolts and the fixed shaft, designs each automatic rubber spring tensioning device to be fixedly mounted at the front and rear inner walls of the box body below one end of the corresponding chain correspondingly, each chain is mounted on the same number of chain wheels which are transversely arranged, the whole body adopts a combined structure, the number of the chain wheels and the length of the corresponding chain can be combined randomly according to the number of the screening rollers, the corresponding number of automatic rubber spring tensioning devices can be mounted, and the chain wheel device can be adjusted and replaced in time, thereby greatly improving the production efficiency and solving the problem that the traditional chain wheel device cannot adjust the length of the chain according to the number of the screening rollers at any time to reduce the production efficiency;

thirdly, the utility model has simple integral structure, low manufacturing cost and convenient popularization and use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a schematic view of the rubber spring automatic tensioner of the present invention.

Labeled as: 1-transmission shaft, 2-box, 3-sprocket group, 4-chain, 5-rubber spring automatic tensioner, 51-mounting seat, 52-rotating arm, 53-tension wheel, 54-bearing, 55-rubber spring, 56-connecting bolt and 57-fixed shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1-4, an automatic chain wheel tensioning device comprises a transmission shaft 1, a box body 2, a chain wheel set 3, a chain 4 and a rubber spring automatic tensioning device 5;

the chain wheel set 3, the chains 4 and the automatic rubber spring tensioning devices 5 are all arranged in the box body 2, the chain wheel set 3 is two chain wheels which are longitudinally arranged and installed on the transmission shaft 1, one end of the transmission shaft 1 where the chain wheel set 3 is installed is arranged in the box body 2, the other end of the transmission shaft extends out of the box body 2, the chains 4 are multiple, each chain 4 is installed on the same number of chain wheels which are transversely arranged, the installation positions of the chains 4 are staggered, and the automatic rubber spring tensioning devices 5 are multiple and are all fixedly installed on the front inner wall and the rear inner wall of the box body 2 below one end of each chain 4;

the automatic tensioner 5 of rubber spring all includes mount pad 51, rocking arm 52, tight pulley 53, rubber spring 55, connecting bolt 56 and fixed axle 57, mount pad 51 passes through connecting bolt 56 fixed mounting before the box 2 that corresponds 4 one end below of chain, on the inner wall, the offside that mount pad 51 is connected with box 2 is connected with the spliced pole of rocking arm 52 one end, rubber spring 55 is a plurality of all to install in mount pad 51 and lie in the spliced pole around, rocking arm 52 is connected with fixed axle 57 for the other end of spliced pole, wear to be equipped with tight pulley on the fixed axle 57, tight pulley 53 and the 4 butts of chain that correspond.

In the embodiment, when the chain wheel device is used, the rubber spring 55 provides a tensioning force, namely, the connecting column arranged at one end of the rotating arm 52 is tensioned, so that the rotating arm 52 drives the other end of the rotating arm 52, which is opposite to the connecting column, to automatically tension the chain 4 at the corresponding upper position through the tensioning wheel 53 arranged on the fixed shaft 57, and the design solves the problems that after the traditional chain wheel device is used for a period of time, the chain 4 on the chain wheel is lengthened, the chain 4 needs to be fastened, the redundant chain link dismounting work of the chain 4 can only be performed manually, and then the chain 4 is time-consuming and labor-consuming in a chain link mode again;

meanwhile, in the embodiment, the rubber spring automatic tensioning devices 5 including the mounting base 51, the rotating arm 52, the tensioning wheel 53, the rubber spring 55, the connecting bolt 56 and the fixing shaft 57 are designed, each rubber spring automatic tensioning device 5 is correspondingly and fixedly mounted at the front inner wall and the rear inner wall of the box body below one end of the corresponding chain 4, each chain 4 is mounted on the same number of chain wheels which are transversely arranged, a combined structure is integrally adopted, the number of the chain wheels and the length of the corresponding chain 4 can be combined randomly according to the number of the screening rollers, the corresponding number of the rubber spring automatic tensioning devices 5 are mounted, and the chain wheel devices can be adjusted and replaced in time.

Example 2:

in embodiment 1, the mounting seat 51 has a hollow cubic structure.

A gasket is further installed between the mounting seat 51 and the connecting bolt 56.

Bearings 54 are further arranged at two ends of the tension wheel 53, the tension wheel 53 is mounted on a fixed shaft 57 through the bearings 54, and the bearings 54 facilitate rotation of the tension wheel 53.

The rotating arm 52 is provided with an adjusting hole below the fixed shaft 57.

The automatic tension adjusting range of the rubber spring automatic tensioner 5 is less than or equal to 35 degrees.

When the automatic chain wheel tensioning device of the utility model is used, the corresponding number of automatic rubber spring tensioning devices 5 are arranged according to the number of the screening rollers and the number of the chain wheel sets 3 and the corresponding length of the chains 4, namely, the chains 4 are firstly arranged on the same number of chain wheels which are transversely arranged, the installation positions of the chains 4 are staggered on the front inner wall and the rear inner wall of the box body 2, then the rubber spring automatic tensioner 5 is fixedly arranged on the front and rear inner walls of the box body 2 below one end of the corresponding chain 4, so that the tension wheel 53 of the rubber spring automatic tensioner 5 is just abutted against the lower part of the middle position of each group of chain wheels corresponding to the chain 4, when in use, because the rubber spring 55 provides tension force, namely, the connecting column arranged at one end of the rotating arm 52 is tensioned, so that the rotating arm 52 drives the other end of the connecting column to automatically tension the chain 4 at the corresponding upper position through a tensioning wheel 53 arranged on a fixed shaft 57;

the elastic force of the rubber spring 55 and the dimension of the tension roller 53 in this embodiment can be set according to the dimension of the chain 4.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. An automatic chain wheel tensioning device is characterized by comprising a transmission shaft (1), a box body (2), a chain wheel set (3), a chain (4) and a rubber spring automatic tensioning device (5);

the chain wheel set (3), the chain (4) and the automatic rubber spring tensioner (5) are all arranged in the box body (2), the chain wheel set (3) is two chain wheels which are longitudinally arranged and installed on the transmission shaft (1), one ends of the transmission shaft (1) and the chain wheel set (3) are arranged in the box body (2), the other ends of the transmission shaft and the chain wheel set extend out of the box body (2), the chains (4) are multiple, each chain (4) is installed on the chain wheels which are arranged in the same number and in the transverse direction, the installation positions of the chains (4) are arranged in a staggered mode, and the automatic rubber spring tensioner (5) is multiple and is fixedly installed on the front inner wall and the rear inner wall of the box body (2) below one end of the corresponding chain (4);

rubber spring automatic tension device (5) all include mount pad (51), rocking arm (52), tight pulley (53), rubber spring (55), connecting bolt (56) and fixed axle (57), mount pad (51) are through connecting bolt (56) fixed mounting before box (2) of corresponding chain (4) one end below, on the back inner wall, the offside that mount pad (51) are connected with box (2) is connected with the spliced pole of rocking arm (52) one end, rubber spring (55) are a plurality of all to install in mount pad (51) and lie in the spliced pole around, rocking arm (52) are connected with fixed axle (57) for the other end of spliced pole, wear to be equipped with tight pulley on fixed axle (57), tight pulley (53) and the chain (4) butt that corresponds.

2. The automatic chain wheel tensioning device as claimed in claim 1, wherein the mounting seat (51) is of a hollow cubic structure.

3. The automatic chain wheel tensioning device as claimed in claim 1, wherein a gasket is further mounted between the mounting seat (51) and the connecting bolt (56).

4. The automatic chain wheel tensioning device as claimed in claim 1, wherein bearings (54) are further arranged at two ends of the tensioning wheel (53), and the tensioning wheel (53) is mounted on a fixed shaft (57) through the bearings (54).

5. The automatic chain wheel tensioning device as claimed in claim 1, wherein the rotating arm (52) is provided with an adjusting hole below the fixed shaft (57).

6. The automatic chain wheel tensioning device as claimed in claim 1, wherein the automatic rubber spring tensioner (5) is adjusted by automatic tensioning within a range of 35 ° or less.