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Crushing multi-stage screening device for building sand aggregate

A screening device, sand and gravel technology, applied in the direction of grain processing, etc., can solve the problems of difficult to achieve the screening effect, difficult to ensure the screening movement, and the screening box cannot be moved, and achieve the effect of novel design, high reliability and strong practicability

Inactive Publication Date: 2019-02-26
霸州市辉月网络技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent (notification number: CN207770293U) discloses a reciprocating impact type Z-type screening device for building aggregates, including a screening box, a tension spring and a striking rod. However, during the screening, the weight of the aggregate is concentrated in the screening box, and it is difficult to ensure the movement in the screening only by the action between the pull switch and the half gear, which will cause the screening box It cannot be moved in actual work, it is difficult to achieve the screening function, the reliability is not high, and the practicability is not strong

Method used

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  • Crushing multi-stage screening device for building sand aggregate
  • Crushing multi-stage screening device for building sand aggregate
  • Crushing multi-stage screening device for building sand aggregate

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Experimental program
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Embodiment 1

[0029] refer to figure 1 and image 3, in an embodiment of the present invention, a crushing multi-stage screening device for building sand and gravel aggregates includes a screening box 1 and a driving box 2 located at the lower end of the screening box 1, and a fixing plate 19 is installed inside the screening box 1, The middle part of the fixed plate 19 is provided with a plurality of discharge holes 20, which are used to ensure that the crushed building sand and gravel aggregates are introduced into the second screening plate 13 from the discharge holes 20 for screening. The drive box 2 is equipped with a drive Shaft 3, the right end of the drive shaft 3 passes through the drive box 2 and is connected with a drive motor 7 for driving the drive shaft 3 to rotate, and the left end of the drive shaft 3 passes through the drive box 2 and is connected with a first transmission gear set 15 for To ensure the transmission of torque between the driving shaft 3 and the driving shaf...

Embodiment 2

[0032] refer to Figure 4 , in another embodiment of the present invention, the difference between this embodiment and the above embodiment is that the additional pulverizing motor 37 in Embodiment 1 is replaced with the following technical solution: the upper end of the pulverizing shaft 28 is equipped with a driven belt Pulley 34, the driven pulley 34 is connected with the driving pulley 32 through the belt 33, and the lower end of the driving pulley 32 is connected with the second transmission gear set 16 through the rotating shaft 31, so that the power of the driving motor 7 can be transmitted to the crushing shaft 28, avoid additionally installing pulverizing motor 37, further reduce cost.

[0033] In the present invention, when working, the construction sandstone aggregate is introduced into the crushing frame 25 in the screening box 1 through the feed hopper 29, and the drive motor 7 is started synchronously, and the drive motor 7 drives the drive shaft 3 to rotate, and...

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Abstract

The invention discloses a crushing multi-stage screening device for a building sand aggregate, and belongs to the technical field of construction machinery, wherein the crushing multi-stage screeningdevice comprises a screening box and a driving box located at the lower end of the screening box; a first crank mechanism is arranged in the middle of the left end of a driving shaft, and a first connecting rod is arranged at the upper end of the first crank mechanism; a vibration plate is connected at the upper end of the first connecting rod; a third crank mechanism is arranged in the middle ofthe right end of the driving shaft, the upper end of the third crank mechanism is provided with a third connecting rod, and the upper end of the third connecting rod passes through the vibration plateand then is connected with a first screening plate; the middle of the driving shaft is connected with a second crank mechanism, the upper end of the second crank mechanism is connected with a secondconnecting rod, and the upper end of the second connecting rod passes through the vibration plate and the first screening plate and is connected with a second screening plate; the middle part of the upper end of a fixed plate is provided with a rotary shaft, the middle part of the rotary shaft is provided with a worm wheel, the front end of the worm wheel is meshed with a worm, two ends of the worm are connected with driven shafts, and the upper end of the rotary shaft is provided with a crushing frame. The crushing multi-stage screening device realizes the multi-stage screening function for the building sand aggregate and further improves the screening quality.

Description

technical field [0001] The invention relates to the technical field of construction equipment, in particular to a crushing and multi-stage screening device for construction sand aggregates. Background technique [0002] Aggregate is also called "aggregate". Granular material that acts as a skeleton and filling in concrete and mortar. There are two kinds of fine aggregate and coarse aggregate. Fine aggregate particle diameters between 0.16 and 5 mm generally use natural sand, such as river sand, sea sand, and valley sand. When there is a lack of natural sand, artificial sand ground from hard rocks can also be used; 5 mm, commonly used gravel and pebbles, under the same conditions, the strength of crushed stone concrete is higher than that of pebble concrete, but crushed stone is made of crushed rocks, and the cost is higher than that of pebbles. Coarse aggregates commonly used in lightweight aggregate concrete include natural porous rocks such as pumice, and artificial por...

Claims

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Application Information

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IPC IPC(8): B02C4/26B02C23/16
CPCB02C4/26B02C23/16B02C2023/165
Inventor 宗磊
Owner 霸州市辉月网络技术有限公司