CN2516273Y

CN2516273Y - Anti-block device for cantilever screen

Info

Publication number: CN2516273Y
Application number: CN 02212245
Authority: CN
Inventors: 孙功民; 孟祥义; 马秀娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-18
Filing date: 2002-01-18
Publication date: 2002-10-16
Anticipated expiration: 2012-01-18

Abstract

The utility model provides the technical scheme of an anti-block device for a cantilever screen. The scheme mainly comprises a side plate, a fixed beam fixed on the side plate, and a plurality of screen strips fixed on the fixed beam. The scheme is characterized in that a core shaft is arranged on the bottom surface at the middle lower part of each of the screen strips and is fixed on the side plate, and a striking tube is sheathed on the core shaft which is a metal tube. The distance between the lower bottom surface of each of the screen strips and the upper surface of the striking tube is smaller than the maximum distance between the outer surface of the core shaft and the inner surface of the striking tube. A shock resistant anti-wear layer can be arranged on the outer surface of the core shaft or the inner surface of the striking tube or the outer surface of the striking tube. Because of the structure, when the cantilever screen works, a screen box oscillates and drives the core shaft to oscillate. Because the core shaft oscillates, the striking tube sheathed on the core shaft flops on the core shaft, and the striking tube flops to strike the screen strips, so clamped materials among the screen strips can be cleaned by the screen strips, and the screen strips have the anti-block function. The scheme has simple and feasible technology and the structure.

Description

A kind of Suspension arm sieve is with preventing plug device

Affiliated technical field:

The utility model relates to the parts of Suspension arm sieve in the industrial screening plant, especially a kind of Suspension arm sieve is with preventing plug device.

Background technology:

In the prior art, with the utility model the most approaching be to authorize and disclosed by State Intellectual Property Office, No. 98243767.6 patents by the applicant's application, this patent disclosure a kind of vibrating arm that on built-in beam, is equipped with, there is striking bar on the top of vibrating arm, when screen box vibrates, vibrating arm will drive the striking bar vibration, because vibrating arm has elasticity, when vibration, can make striking bar beat grating, thereby can remove the screening thing of clamping between grating, this structure can prevent effectively that grating from being filled in, but this structure also has structure and the complicated defective of technology.

Summary of the invention:

The utility model is at the existing in prior technology deficiency, and provides a kind of Suspension arm sieve with antifouling device technique scheme.

This programme is realized by following technical measures: mainly include side plate and the built-in beam that is fixed on the side plate, and be fixed on a plurality of gratings on the built-in beam, the characteristics of this programme are to also have mandrel to be fixed on the side plate in the bottom surface of described grating middle and lower part, are set with to hit pipe on described mandrel.The concrete characteristics of this programme also have, and described mandrel is a metal tube.Distance between the upper surface of described grating bottom surface and strike pipe is less than the ultimate range between mandrel outer surface and the strike pipe internal surface.The outer surface of described mandrel can also have the antivibration wear resistant layer.The inner surface of described strike pipe can also have the antivibration wear resistant layer.The outer surface of described strike pipe can also have the antivibration wear resistant layer.

According to as can be known,, on described mandrel, be set with and hit pipe because the bottom surface of grating middle and lower part also has mandrel to be fixed on the side plate in this scheme to the narration of such scheme.This structure, when Suspension arm sieve in when work, the vibration of screen box shuttle belt moving mandrel, because mandrel vibration, the strike pipe that is enclosed within on the mandrel must be beated on mandrel, hits beating of pipe and just can hit grating, thereby make grating have clipped object material between the cleaning grating, make grating possess antifouling function, the technology of this scheme and structure are all relatively simple.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.

Description of drawings:

Fig. 1 is the part sectional structure schematic diagram of the utility model specific embodiment.

Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic diagram.

1 is side plate among the figure, and 2 is built-in beam, and 3 is grating, and 4 for hitting pipe, and 5 is mandrel.

The specific embodiment:

For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by a specific embodiment.

By accompanying drawing as can be seen, the Suspension arm sieve of this programme is with preventing plug device, mainly include side plate (1) and the built-in beam (2) that is fixed on the side plate (1), and be fixed on a plurality of gratings (3) on the built-in beam (2), the characteristics of this programme are to also have mandrel (5) to be fixed on the side plate (1) in the bottom surface of described grating (3) middle and lower part, be set with on described mandrel (5) and hit pipe (4), this strike pipe (4) can be beated on mandrel (5) with the vibration of mandrel (5).For the described mandrel of weight reduction (5) employing is a metal tube.Described grating (3) bottom surface and the distance of hitting between the upper surface of managing (4) are less than mandrel (5) outer surface and hit the ultimate range of managing between (4) inner surface, and this can guarantee to hit pipe (4) can hit grating (3) when beating.In order to improve the service life of device, can also be covered with the antivibration wear resistant layer at the outer surface of described mandrel (5) or the inner surface of described strike pipe (4) or the outer surface of described strike pipe (4), this antivibration wear resistant layer can be hard material or soft material.

Claims

1. a Suspension arm sieve is with preventing plug device, mainly include side plate and the built-in beam that is fixed on the side plate, and be fixed on a plurality of gratings on the built-in beam, it is characterized in that: also have mandrel to be fixed on the side plate in the bottom surface of described grating middle and lower part, on described mandrel, be set with and hit pipe.

2. Suspension arm sieve according to claim 1 is with preventing plug device, its feature: be that described mandrel is a metal tube.

3. Suspension arm sieve according to claim 1 and 2 is with anti-plug device, its feature: be that described grating bottom surface and distance between the upper surface that hits pipe are less than the ultimate range between mandrel outer surface and the strike pipe internal surface.

4. Suspension arm sieve according to claim 3 is with preventing plug device, and its feature: the outer surface that is described mandrel can also have the antivibration wear resistant layer.

5. Suspension arm sieve according to claim 3 is with preventing plug device, and its feature: the inner surface that is described strike pipe can also have the antivibration wear resistant layer.

6. Suspension arm sieve according to claim 3 is with preventing plug device, and its feature: the outer surface that is described strike pipe can also have the antivibration wear resistant layer.