CN210585853U

CN210585853U - Variable-pitch soil screen

Info

Publication number: CN210585853U
Application number: CN201921327745.3U
Authority: CN
Inventors: 巫泳昆; 邹振阳; 张智鹏; 雷永海
Original assignee: Yongxing Guizhou Construction Engineering Quality Testing Co Ltd
Current assignee: Yongxing Guizhou Construction Engineering Quality Testing Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-22
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a variable-pitch soil screen, which comprises a frame and a plurality of grids, wherein two ends of each grid are inserted between two sides of the frame through a circular mounting column, the cross section of each grid is oval, and the central axis of each mounting column is superposed with the central axis of each grid; the grille is rotatable relative to the frame and is provided with a drive mechanism for controlling rotation of the grille. The utility model discloses the grid cross section is oval, can change its interval at synchronous revolution's in-process to reach a tractor serves several purposes, the roll adjustment short time alright completion moreover does not need whole change grid etc..

Description

Variable-pitch soil screen

Technical Field

The utility model relates to an engineering check out test set, in particular to but displacement soil sieve.

Background

In engineering detection, the filled earthwork needs to be detected many times, and one of the detection is to classify the particle size. Mechanical vibration separation is commonly used for classification, the core of the mechanical vibration separation is still screening, and soil sieves in the mechanical vibration separation are generally equidistant sieves, so that the sieve body is only integrally replaced when the diameter of the soil sieve is required to be changed, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a soil sieve of variable distance.

The technical scheme of the utility model is that:

a variable-pitch soil sieve comprises a frame and a plurality of grids, wherein two ends of each grid are inserted between two sides of the frame through circular mounting columns, the cross sections of the grids are oval, and the central axes of the mounting columns are superposed with the central axes of the grids; the grille is rotatable relative to the frame and is provided with a drive mechanism for controlling rotation of the grille.

Furthermore, the transmission mechanism adopts chain transmission and comprises gears arranged on the mounting column at one end, and the gears are all transmitted through the same chain.

Further, the major axis b of the grid cross-sectional ellipse is equal to 1.2-1.3 times the minor axis a.

Further, the maximum spacing c between the grids is at least 3 times greater than the difference between the major axis b and the minor axis a thereof.

Further, the chain is driven by a stepping motor.

The utility model discloses an useful part lies in:

the utility model discloses the grid cross section is oval, can change its interval at synchronous revolution's in-process to reach a tractor serves several purposes, the roll adjustment short time alright completion moreover does not need whole change grid etc..

Drawings

FIG. 1 is a schematic top view of the structure of the present invention;

FIG. 2 is a schematic diagram of the maximum working gap of the present invention;

FIG. 3 is a schematic diagram of the middle working gap of the present invention;

fig. 4 is a schematic diagram of the minimum working gap of the present invention.

In the figure: 1-grating, 11-mounting column, 2-frame, 3-gear, 31-chain.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-4:

a variable-pitch soil sieve comprises a frame 2 and a plurality of grids 1, wherein two ends of each grid 1 are inserted between two sides of the frame 2 through circular mounting columns 11, the cross sections of the grids 1 are oval, and the central axes of the mounting columns are superposed with the central axis of the grids 1; the grating 1 is rotatable relative to the frame 2 and is provided with a transmission mechanism for controlling the rotation of the grating 1.

The utility model discloses the grid carries out with angular rotation through drive mechanism control, and the biggest interval is as shown in fig. 2, and when the major axis all was located vertical direction, equals c through the diameter, and the minimum interval is as shown in fig. 4, equals c-2(b-a) through the diameter, and during the intermediate position, passes through the distance and is located between c and c-2 (b-a).

Specifically, the transmission mechanism adopts chain transmission and comprises gears 3 arranged on the mounting column 11 at one end, and the gears 3 are all transmitted through the same chain 31.

Specifically, the major axis b of the cross-sectional ellipse of the grating 1 is equal to 1.2-1.3 times of the minor axis a, because the eccentricity is too large to easily cause jamming during rotation.

Specifically, the maximum spacing c between the grids 1 is at least 3 times greater than the difference between the major axis b and the minor axis a thereof, so that the spacing is adjusted to be between 33% and 100% of the maximum distance c.

Specifically, the chain 31 is driven by a stepping motor, and the stepping motor is convenient for controlling the rotation angle.

Since the chain transmission technology and the like belong to the well-established existing mechanical technology, the arrangement and configuration of the transmission and the like are not described in detail. The frame part or the oscillating part with which it is used is in accordance with the prior art.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a variable-pitch soil sieve, includes frame (2) and a plurality of grid (1), grid (1) both ends are through circular shape erection column (11) cartridge between frame (2) both sides, its characterized in that: the cross section of the grid (1) is oval, and the central axis of the mounting column is superposed with the central axis of the grid (1); the grating (1) can rotate relative to the frame (2) and is provided with a transmission mechanism for controlling the rotation of the grating (1).

2. The variable pitch soil screen of claim 1, wherein: the transmission mechanism adopts chain transmission and comprises gears (3) arranged on a mounting column (11) at one end, and the gears (3) are all transmitted through the same chain (31).

3. The variable pitch soil screen of claim 1, wherein: the major axis b of the cross-sectional ellipse of the grid (1) is equal to 1.2-1.3 times of the minor axis a.

4. The variable pitch soil screen of claim 1, wherein: the maximum spacing c between the grids (1) is at least 3 times the difference between the major axis b and the minor axis a thereof.

5. The variable pitch soil screen of claim 2, wherein: the chain (31) is driven by a stepping motor.