CN214990331U

CN214990331U - Rotary grille underwater steering chain wheel mechanism

Info

Publication number: CN214990331U
Application number: CN202120552202.2U
Authority: CN
Inventors: 顾红兵; 朱旭昶
Original assignee: Wuxi General Machinery Works Co ltd
Current assignee: Wuxi General Machinery Works Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-12-03
Anticipated expiration: 2031-03-17

Abstract

The utility model provides a rotary grille underwater steering chain wheel mechanism, which comprises an upper chain wheel, a lower chain wheel and a guide chain wheel which are rotationally arranged on a frame, wherein the lower chain wheel is positioned at the lower left side of the upper chain wheel, the upper chain wheel is connected with the lower chain wheel through a traction chain, and the guide chain wheel is arranged between the upper chain wheel and the lower chain wheel and is positioned at the lower right side of the traction chain; in the initial state, the guide sprocket is just engaged with the drag chain. The utility model discloses the traction chain becomes long after a period of use, and the length that traction chain increases moves down and increases with leading sprocket contact length to the part that increases is piled up all the time on leading sprocket, makes the fine meshing of traction chain, can not take off the chain from the lower sprocket, reduces the potential safety hazard of rotation grid scrubbing machine, and underwater leading sprocket easy dismounting guarantees scrubbing efficiency.

Description

Rotary grille underwater steering chain wheel mechanism

Technical Field

The utility model relates to a rotation grid scrubbing machine accessory, especially a rotation grid turns to sprocket mechanism under water.

Background

The rotary type grid sewage removal device is mainly used for solid-liquid screening, is suitable for the pretreatment process of municipal sewage treatment plants, such as municipal sewage treatment plants, residential district sewage treatment facilities and water inlets of town channels, can also be used for impurity separation at cooling water inlets of water works and power plants to protect water pump impellers and reduce the treatment load of subsequent processes, and is advanced solid-liquid screening equipment.

The working process of the rotary type grating dirt remover is as follows: the speed reducing motor is electrified and drives the traction chain to rotate around the grid body through the chain wheel transmission, impurities trapped by the grid body are separated from liquid along with the upward movement of the toothed harrow, and when the toothed harrow runs to the upper part of the equipment, the impurities fall into a garbage truck on a well by the dead weight.

The underwater guide of the traction chain in the rotary grille decontamination machine is carried out by a group of guide chain wheels, so that the traction chain does rotary motion, but after the traction chain is used for a long time, the traction chain is under the action of tension and gravity, the length of the traction chain can be lengthened, so that the traction chain cannot be well meshed with the underwater guide chain wheel, the problem of chain disengagement of the traction chain can be caused, and finally the operation of the decontamination machine is failed, and the production is influenced.

Disclosure of Invention

To exist not enough among the prior art, the utility model provides a rotation grid turns to sprocket mechanism under water can drag the drag chain after drag chain becomes long, makes it all the time with the meshing of underwater leading sprocket to the problem of drag chain antichain can not take place. The utility model adopts the technical proposal that:

a rotary grille underwater steering chain wheel mechanism comprises an upper chain wheel, a lower chain wheel and a guide chain wheel which are rotatably arranged on a rack, wherein the lower chain wheel is positioned at the left lower side of the upper chain wheel, the upper chain wheel is connected with the lower chain wheel through a traction chain, and the guide chain wheel is arranged between the upper chain wheel and the lower chain wheel and positioned at the right lower side of the traction chain; in the initial state, the guide sprocket is just engaged with the drag chain.

Further, the rotating configuration between the frame and the guide chain wheel is specifically as follows:

the guide chain wheel is fixed on the main shaft, and the main shaft is connected with the rack through a bearing seat.

Furthermore, the guide chain wheel is in key connection with the main shaft, and the bearing seat is connected with the rack through a fixing bolt.

Furthermore, a plurality of tooth rakes are arranged on the side surface of the traction chain at equal intervals.

Furthermore, the specifications of the upper chain wheel and the lower chain wheel are the same and are larger than the size of the guide chain wheel.

Furthermore, the number of the upper chain wheel, the number of the guide chain wheel and the number of the lower chain wheel are two, and the upper chain wheel, the guide chain wheel and the lower chain wheel are symmetrically arranged in the rack.

The utility model has the advantages that: the chain traction is under being responsible for the direction by a set of lower sprocket and a set of leading sprocket under water, leading sprocket is in the engaged state promptly with chain traction when initial use, it is straight to go up the sprocket and make chain traction with lower sprocket, chain traction becomes long after a period of use, the length that chain traction increases moves down and increases with leading sprocket contact length, thereby the part that increases is piled up all the time on chain traction, make the fine meshing of chain traction, thereby can not follow the chain that takes off from lower sprocket, reduce the potential safety hazard of rotation grid scrubbing machine, also need not adjust the position of leading sprocket, and underwater leading sprocket easy dismounting, guarantee scrubbing efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 at B.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Fig. 4 is a working state diagram of the present invention.

In the figure: 1-upper chain wheel, 2-traction chain, 3-toothed harrow, 4-guide chain wheel, 5-lower chain wheel, 6-main shaft, 7-bearing seat and 8-frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1-3, the present invention provides a rotary grille underwater steering sprocket mechanism, which comprises an upper sprocket 1, a lower sprocket 5 and a guide sprocket 4 rotatably disposed on a frame 8, wherein the lower sprocket 5 is disposed at the lower left side of the upper sprocket 1, the upper sprocket 1 and the lower sprocket 5 are connected by a drag chain 2, and the upper sprocket 1 and the lower sprocket 5 are disposed so that the drag chain 2 is in an inclined state to facilitate the transportation of dirt; the guide chain wheel 4 is arranged between the upper chain wheel 1 and the lower chain wheel 5 and is positioned at the lower right side of the traction chain 2; and a plurality of tooth rakes 3 are equidistantly arranged on the side surface of the traction chain 2 and are used for hooking up dirt in the pool. Specifically, the number of the upper chain wheel 1, the number of the guide chain wheel 4 and the number of the lower chain wheel 5 are two, the two chain wheels are symmetrically arranged in the rack 8, the number of the traction chains 2 is two, and each traction chain 2 is engaged among the upper chain wheel 1, the lower chain wheel 5 and the guide chain wheel 4; in the initial state, the guide sprocket 4 is just engaged with the traction chain 2, that is, the guide sprocket 4 rotates with the movement of the traction chain 2.

Further, the specifications of the upper chain wheel 1 and the lower chain wheel 5 are the same and are larger than the size of the guide chain wheel 4.

The rotating configuration between the frame 8 and the guide chain wheel 4 is specifically as follows: the guide chain wheel 4 is fixed on a main shaft 6, and the main shaft 6 is connected with a frame 8 through a bearing seat 7; specifically, the guide chain wheel 4 is in key connection with a main shaft 6, and the bearing seat 7 is connected with a rack 8 through a fixing bolt; when the guide chain wheel 4 is worn and needs to be replaced, the bearing seats 7 at the two ends of the main shaft 6 are directly removed, so that the whole replacement can be realized, and the replacement is simple and convenient.

As an embodiment of the utility model, leading sprocket 4 directly links to each other with the frame through quick detach spare such as round pin, key, tenon, through the dismantlement that can realize leading sprocket 4 equally of the dismantlement of quick detach spare, the change of leading sprocket 4 of being convenient for.

As shown in the attached figure 4, the working principle of the utility model is as follows:

go up sprocket 1 and rotate and drive sprocket 5 and leading sprocket 4 through 2 transmissions of drive chain, the prong 3 lifts up the filth in the pit along with 2 movements of drive chain, after 2 grow of drive chain, the drive chain 2 of 5 upper right sides parts of sprocket is owing to relax down in the displacement, long drive chain 2 is located on leading sprocket 4 global, still mesh with lower sprocket 5's meshing position, thereby avoid drive chain 2 to break away from lower sprocket 5, guarantee drive chain 2's normal operating, thereby guarantee the normal lifting of filth, guarantee cleaning efficiency.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a rotation grid turns to sprocket mechanism under water which characterized in that: the chain traction mechanism comprises an upper chain wheel (1), a lower chain wheel (5) and a guide chain wheel (4) which are rotationally arranged on a rack (8), wherein the lower chain wheel (5) is positioned on the left lower side of the upper chain wheel (1), the upper chain wheel (1) is connected with the lower chain wheel (5) through a traction chain (2), and the guide chain wheel (4) is arranged between the upper chain wheel (1) and the lower chain wheel (5) and is positioned on the right lower side of the traction chain (2);

in the initial state, the guide chain wheel (4) is just meshed with the traction chain (2).

2. The rotary grate underwater steering sprocket as in claim 1, wherein: the rotating configuration between the frame (8) and the guide chain wheel (4) is as follows:

the guide chain wheel (4) is fixed on the main shaft (6), and the main shaft (6) is connected with the rack (8) through a bearing seat (7).

3. The rotary grate underwater steering sprocket as in claim 2, wherein: the guide chain wheel (4) is connected with the main shaft (6) in a key mode, and the bearing seat (7) is connected with the rack (8) through a fixing bolt.

4. The rotary grate underwater steering sprocket as in claim 1, wherein: the side surface of the traction chain (2) is equidistantly provided with a plurality of tooth rakes (3).

5. The rotary grate underwater steering sprocket as in claim 1, wherein: the specifications of the upper chain wheel (1) and the lower chain wheel (5) are the same and are larger than the size of the guide chain wheel (4).

6. The rotary grate underwater steering sprocket as in claim 1, wherein: the number of the upper chain wheels (1), the number of the guide chain wheels (4) and the number of the lower chain wheels (5) are two, and the two chain wheels are symmetrically arranged in the rack (8).