CN209918309U

CN209918309U - Screening machine

Info

Publication number: CN209918309U
Application number: CN201920710254.0U
Authority: CN
Inventors: ***; 李君�
Original assignee: Yichang Chu Nong Agricultural Development Co Ltd
Current assignee: Yichang Chu Nong Agricultural Development Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-01-10
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses a screening machine, belonging to the field of material sorting equipment, comprising a machine body for mounting and supporting, a first screen and a second screen; the first screen is positioned above the second screen, and the sieve pores of the first screen are larger than those of the second screen; one side of the first screen and one side of the second screen are both provided with shaking devices for pushing the first screen and the second screen to perform plane shaking; the shaking device comprises a shaking rod and a shaking cylinder; the shaking rod is connected to the machine body in a sliding mode along the shaking direction of the screen, one end of the shaking rod is fixed to the respective screen, the other end of the shaking rod is fixed to the end portion of a piston rod of the shaking cylinder, and the piston rod is arranged along the sliding direction of the screen. The utility model provides an unable problem of selecting the raw materials of particle diameter in the certain limit among the prior art.

Description

Screening machine

Technical Field

The utility model relates to a material sorting facilities, concretely relates to screening machine.

Background

When some products which need raw material proportion and have requirements on the particle size of the raw materials are produced, a screening machine is usually used for selecting the particle size of the raw materials and screening impurities, and common concrete macadam is also used during fertilizer proportioning; sometimes, the particle size of the raw material cannot be too large or too small in order to ensure the quality of the product. At present, the drum screen is mainly used, the working part of the drum screen is a cylindrical surface or a conical surface screen cylinder, a rotating shaft is arranged along the symmetrical axis of the screen cylinder, the whole screen rotates around the axis of the cylinder body, and the axis is arranged at a small inclination angle under the ordinary condition. Circular conical surface sieve section of thick bamboo horizontal installation, the material is given from the tip of drum to being taken along with the rotation of a sieve section of thick bamboo, when reaching a take the altitude, because of receiving the action of gravity to fall down by oneself, fine-grade material passes through from cylindric working surface's sieve mesh, and the coarse grain material is discharged from the other end of drum, so constantly the motion of rising and falling realizes the screening of material. However, the sieve pores are easy to block and deform, the rotating speed is slow, the screening efficiency is low, and the blocked sieve pores are difficult to treat. Moreover, this sieving method can only separate raw materials having a particle size larger than a certain value and having a particle size smaller than the certain value, and cannot select raw materials having particle sizes within a certain range.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a screening machine has solved the problem that can't select the raw materials of particle diameter in the certain limit among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a screening machine comprises a machine body, a first screen and a second screen, wherein the machine body is used for installing and supporting; the first screen is positioned above the second screen, and the sieve pores of the first screen are larger than those of the second screen; one side of the first screen and one side of the second screen are both provided with shaking devices for pushing the first screen and the second screen to perform plane shaking; the shaking device comprises a shaking rod and a shaking cylinder; the shaking rod is connected to the machine body in a sliding mode along the shaking direction of the screen, one end of the shaking rod is fixed to the respective screen, the other end of the shaking rod is fixed to the end portion of a piston rod of the shaking cylinder, and the piston rod is arranged along the sliding direction of the screen.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a screening machine, which is provided with two layers of screen meshes and shakes the screen meshes through a shaking device; wherein the mesh of the upper screen is larger than the mesh of the lower screen, a material with a particle size between two mesh sizes can be obtained on the second screen.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a side view of the interior of the present invention;

FIG. 3 is a schematic view of a baffle structure;

wherein, organism 1, first screen cloth 2, second screen cloth 3, rock pole 4, rock cylinder 5, expanding spring 6, magnet 7, support column 8, baffle 9, supporting shoe 10.

Detailed Description

In order to make the utility model realize that the technical means, the creation characteristics, the achievement purpose and the effect are clearer and are easy to understand, the following combination and the detailed implementation are right the utility model discloses do further explanation:

as shown in fig. 1-3, the present invention provides a screening machine, which comprises a machine body 1 for mounting and supporting, a first screen 2 and a second screen 3; the first screen 2 is positioned above the second screen 3, and the sieve pores of the first screen 2 are larger than those of the second screen 3; one side of the first screen 2 and one side of the second screen 3 are both provided with shaking devices for pushing the first screen to perform plane shaking; the shaking device comprises a shaking rod 4 and a shaking cylinder 5; sway pole 4 and sway the direction sliding connection that rocks of screen cloth and fix on respective screen cloth on organism 1 and one end, sway the pole 4 other end and fix and rock the piston rod tip of cylinder 5 and the piston rod sets up along the screen cloth slip direction.

According to the above technical scheme, the utility model discloses a technical thought does: through setting up the double-deck screen cloth, screen the raw materials of the particle diameter in the certain limit, guarantee the quality of raw materials in the aspect of from the particle diameter. And the shaking of the screen is realized through the shaking device so as to realize the screening process.

Preferably, the shaking device further comprises a telescopic spring 6 sleeved outside the shaking rod 4 and a magnet 7 fixed at the end part of the piston rod of the shaking cylinder 5; be equipped with on the organism 1 and supply to rock pole 4 and pass and sliding connection's support column 8, rock pole 4 one end and adsorb on

magnet

7, 6 one end of expanding spring is fixed and is being rocked pole 4 and adsorb the one end at magnet 7, and the 6 other end of expanding spring is fixed on support column 8. At specific during operation, rock cylinder 5 and contract earlier mutually, 4 tip of pole and extension spring 6 are rocked in magnet 7 absorption, when extension spring 6's pulling force is greater than magnet 7 and rocks the adsorption affinity between the pole 4, rock pole 4 and be pulled back by extension spring 6, rock cylinder 5 at this moment and take the piston rod back a certain distance of contracting wantonly to make the screen cloth obtain a great rocking, compare in directly will rock and fix at the piston rod tip in pole 4, its suddenly nature of rocking is bigger. After the spring stretches and retracts for many times, energy is attenuated, the telescopic cylinder extends to enable the magnet 7 and the shaking rod 4 to be adsorbed again, the shaking rod 4 is energized again, and the next round of shaking is carried out. The mode can prevent the material from leaking out because the material is not continuously in violent shaking, but has certain sudden shaking capability to deal with the situation of hole blockage.

Preferably, the upper surfaces of the first screen 2 and the second screen 3 are provided with baffles 9 for preventing the materials from leaking laterally. The first screen 2 and the second screen 3 are both obliquely arranged, and the baffle plates 9 at the lower ends can be detachably connected; the plane of the machine body 1 below the second screen 3 is obliquely arranged and is provided with a discharge hole. The inclination angle needs to be little, avoids raw materials from the lower extreme hourglass when rocking. Baffle 9 realizes understanding dismantling of baffle 9 through the arch of vertical setting and recess cooperation, finishes at the screening only to demolish baffle 9 of lower extreme and the blowing. And discharging the materials in sequence, wherein the falling raw materials are discharged to a discharge hole along with the inclined plane below the second screen 3. After the screening is finished, the baffle plates 9 at the end parts of the two screen meshes are sequentially detached to prevent the materials from being mixed again. Wherein the front end of the second screen 3 is slightly ahead of the front end of the first screen 2, which facilitates the exposure of the baffle 9 for disassembly. But not too far, to prevent the first screen 2 from falling into the second screen 3 when it is unloaded.

Preferably, the rocking bar 4 is prevented from being subjected to large radial forces in order to ensure a good support of the screen during rocking. Both sides of the lower surfaces of the first screen 2 and the second screen 3 are supported by support blocks 10 fixed on the machine body 1. Correspondingly, the both ends of first screen cloth 2 and the 3 slip directions of second screen cloth all are equipped with and shake pole 4 and shake and all overlap on the pole 4 and be equipped with the spring and every side has two, when guaranteeing the elastic potential energy that gives at every turn, give a relatively stable support and elasticity direction of screen cloth.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The sieving machine is characterized by comprising a machine body, a first screen and a second screen, wherein the machine body is used for installing and supporting; the first screen is positioned above the second screen, and the sieve pores of the first screen are larger than those of the second screen; one side of the first screen and one side of the second screen are both provided with shaking devices for pushing the first screen and the second screen to perform plane shaking; the shaking device comprises a shaking rod and a shaking cylinder; the shaking rod is connected to the machine body in a sliding mode along the shaking direction of the screen, one end of the shaking rod is fixed to the respective screen, the other end of the shaking rod is fixed to the end portion of a piston rod of the shaking cylinder, and the piston rod is arranged along the sliding direction of the screen.

2. The screening machine according to claim 1, wherein the shaking device further comprises a telescopic spring sleeved outside the shaking rod and a magnet fixed at the end of the piston rod of the shaking cylinder; the machine body is provided with a support column for the rocking rod to pass through and be connected in a sliding manner, one end of the rocking rod is adsorbed on the magnet, one end of the telescopic spring is fixed at one end of the rocking rod which is adsorbed on the magnet, and the other end of the telescopic spring is fixed on the support column.

3. A screening machine according to claim 2 wherein the upper surfaces of the first and second screens are provided with baffles to prevent lateral leakage of material.

4. The screening machine as claimed in claim 3, wherein the first screen and the second screen are both obliquely arranged and the baffles at the lower ends are both detachably connected; the plane of the machine body below the second screen is obliquely arranged and is provided with a discharge hole.

5. A screening machine according to claim 4 wherein the lower surfaces of the first and second screens are supported on either side by support blocks secured to the machine body.

6. The screening machine as claimed in claim 5, wherein shaking rods are provided at both ends of the first screen and the second screen in the sliding direction and springs are provided on the shaking rods.