Rotary jitter-type sand and gravel screening device

A screening device, sand and gravel technology, applied in the direction of filtration, solid separation, chemical instruments and methods, etc., can solve the problems of single movement, delay of construction time, single movement track of the screen plate, etc., and achieve synchronous coordination of up and down reciprocating shaking , improve synergistic joint effect, and rationally use the effect of screening space

Active Publication Date: 2021-02-12
湖北鸿茂矿渣微粉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The screening devices of the above-mentioned prior art generally have the following technical problems: First, the movement track of the screen plate is single, or it is of the type of shaking up and down or the type of horizontal swing, resulting in a single relative movement of the material during sieving, and the efficiency of the screening material needs to be improved. ; Second, the structure of the screen plate of the prior art is mostly a planar structure, that is, there are only mesh holes that are conducted up and down, and then cooperate with the reciprocating linear motion of this shaking type or swing type of the prior art, resulting in the When sieving, its feeding point only exists at the bottom of the sieve, the space utilization rate of the sieve is low, and the efficiency of the sieve needs to be improved; third, in addition to the above-mentioned technical problems, the screen plate of the plane structure has Lack of barriers on the side, resulting in material leakage during the screening process
Or directly piled up on the construction site. When construction is required, it is necessary to carry out secondary loading and transportation of sand, which is time-consuming and labor-intensive; if a transfer trolley is used to pick up materials, it will cause the transfer trolley to pick up materials for a long time, which will delay the construction time; If the sieved sand is dumped in the prior art carrying device of the prior art, and then carried out centralized delivery to the transfer trolley through the carrying device, it is necessary to monitor in real time whether the carrying device is fully loaded; The sand is mostly used for concrete mixing, and the proportion range of sand in each square concrete is fixed, and the loading device is used for centralized conveying, and secondary weighing is required
In summary, the screening device in the prior art still needs to be improved in connection between screening and subsequent processes.

Method used

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  • Rotary jitter-type sand and gravel screening device
  • Rotary jitter-type sand and gravel screening device
  • Rotary jitter-type sand and gravel screening device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1-3 As shown, this embodiment discloses a rotary shaking type sand screening device, including a frame 1, a drive motor 21, a connecting rod 22, a lower pressing member, a movable block 24, a first connecting rod 25, a second connecting rod 26, Fixed sleeve 27, first reset body 28, screen 31, sleeve 32, chassis 33, lifting mechanism. The pressing piece in this embodiment is preferably a screw sleeve 23 .

[0050] The fixed end of the driving motor 21 is fixed on the frame 1, the output shaft of the driving motor 21 is connected with the top of the connecting rod 22, and the bottom of the connecting rod 22 extends downward. The sleeve 32 is sheathed on the periphery of the connecting rod 22 and there is a gap between the sleeve 32 and the connecting rod 22 . The screw sleeve 23, the movable block 24, and the fixed sleeve 27 are limited in the sleeve 32 from top to bottom, wherein the screw sleeve 23 is threadedly matched with the connecting rod 22, the ...

Embodiment 2

[0078] Such as Figure 11 As shown, the difference between this embodiment and the above-mentioned embodiments is that a ring of baffle plates 901 surrounds the outer peripheral side of the mesh structure, and a blanking box 902 with an opening facing upward is arranged under the mesh structure. Sand falling from the gap between the baffle plate 901 and the screen structure and the bottom of the screen structure (ie, the bottom net 311 ) can fall into the blanking box 902 . A sand discharge pipe 903 is communicated with the lower end or bottom of the blanking box body 902 .

[0079] In the present invention, a circle of baffle plate 901 is surrounded on the outer peripheral side of the screen structure, and the material baffle plate 901 can be connected to the frame 1, and a blanking box 902 with an opening facing upward is arranged under the screen structure. After the sand grains are thrown out by the side of the screen structure, under the blocking effect of the material b...

Embodiment 3

[0081] Such as Figure 12-14 As shown, the difference between this embodiment and the above-mentioned embodiments is that the sand outlet pipe 903 is connected with a centralized feeding device, and the centralized feeding device includes a feeding bin 9041, a movable plate 9042, a support spring 9043, a sliding rod 9044, a second reset The elastic body 9045 and the movable plate 9042 slide up and down to be limited in the lower material bin 9041, and its side faces are in sealing contact with the inner wall of the lower material bin 9041. A support spring 9043 is connected between the bottom of the movable plate 9042 and the inner bottom wall of the lower bin 9041 .

[0082] In some embodiments, the support spring 9043 may be a compression spring, and its upper and lower ends may be respectively connected or contacted with the bottom of the movable plate 9042 and the inner bottom wall of the lower bin 9041 .

[0083] On the side of the lower hopper 9041, a discharge port is ...

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Abstract

The invention discloses a rotary jitter-type sand and gravel screening device. An output shaft of a driving motor is connected with the top of a connecting rod, and the bottom of the connecting rod extends downwards; a through groove is formed in a sleeve, one end of a first connecting rod is hinged to a movable block while the other end of the first connecting rod is hinged to a second connectingrod; one end of the second connecting rod is hinged to a fixed sleeve; a first reset elastic body is assembled to ensure that the other end of the second connecting rod is accommodated in the fixed sleeve; a screw shell is rotated downwards to drive the movable block to be slid downwards so as to ensure that the other end of the second connecting rod extends out of the through groove; a screen mesh is connected with a sleeve; and a chassis is arranged on the screen mesh and the screen mesh structure can be rotated relative to the chassis; a lifting mechanism is positioned under the chassis, and synchronous motion of the lifting mechanism and the connecting rod is carried out, and the lifting mechanism is moved up and down so as to drive the chassis to do up-down reciprocating motion. Therotary jitter-type sand and gravel screening device disclosed by the invention has the advantage of high screening efficiency.

Description

technical field [0001] The invention relates to the technical field of sand and gravel screening in construction engineering, in particular to a rotary shaking type sand and gravel screening device. Background technique [0002] The screening device in the prior art, such as a shaking type drug processing and screening device disclosed in the 201811421984.5 application, uses a telescopic support rod to elastically support the screen plate with a spring, and continuously shakes the screen plate, that is, through the linear reciprocating motion of the screen plate to achieve sieving. Another example is a sieving device in the production process of florfenicol powder disclosed in patent application 201721885664.6, which uses a telescopic rod to drive the sieve plate to vibrate up and down inside the feed box, so as to achieve preliminary sieving of powdered florfenicol powder point. Another example is a sieve body hanging combination device disclosed in patent application 201...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/36B07B1/42
CPCB07B1/36B07B1/42Y02A40/81
Inventor 曾维西
Owner 湖北鸿茂矿渣微粉有限公司
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