CN220900958U - Bar type coarse screening machine - Google Patents

Abstract

The utility model discloses a bar type coarse screening machine which comprises a frame, wherein a screening box is arranged on the frame, a damping spring is arranged between the frame and the screening box, an excitation motor is arranged at the lower part of the screening box, a plurality of bar screens are arranged in the screening box and are sequentially arranged from top to bottom in a stepped shape, two ends of each bar screen are respectively integrated on a corresponding connecting plate, and the connecting plates are detachably connected with the screening box. The utility model integrally integrates a plurality of bar sieves on the connecting plate, can be quickly disassembled and assembled on the sieve box, and only needs to disassemble the corresponding bar sieve when replacing the single bar sieve later, thus the utility model has simple integral operation, convenient use and good operation flexibility.

Description

Bar type coarse screening machine

Technical Field

The utility model relates to the technical field of manufacturing industry, in particular to a bar type coarse screening machine.

Background

At present, rod type screening machines are widely applied to industries such as ore washing, screening, classifying, sorting, primary screening and the like of materials in industries such as decoration garbage, household garbage, stalked garbage, mine stone selection, abrasive garbage treatment, quarry and the like, and when the rod type screening machine is in operation, exciting force generated by an exciter is transmitted to a screen surface in the screen box through the screen box, and the exciting force generated by the exciter is longitudinal force, so that the screen box drives the screen surface to be in a longitudinal front-rear position; under certain conditions, the materials on the screen surface are thrown forward under the action of the vibration force, and the materials smaller than the screen holes are screened to fall to the lower layer when falling, and the movement track of the materials on the screen surface is parabolic movement, so that the repeated material movement can finish the material screening operation; the internal bar screen of mainstream sieve in the present market is integrated in the sieve case, and when follow-up adjustment bar screen angle or bar screen appear breaking tooth change, it is very troublesome, and the maintenance is long-time consuming, the degree of difficulty is big.

Disclosure of utility model

Aiming at the technical problems that a bar screen is integrated in a screen box in the existing bar screen type screening machine, and the time consumption and the difficulty are long in subsequent maintenance, the utility model provides a bar type coarse screening machine.

The utility model realizes the above purpose through the following technical scheme:

The bar type coarse screening machine comprises a frame, a screen box is arranged on the frame, a damping spring is arranged between the frame and the screen box, an excitation motor is arranged at the lower part of the screen box, a plurality of bar screens are arranged in the screen box and are sequentially arranged from top to bottom in a stepped mode, two ends of each bar screen are respectively integrated on corresponding connecting plates, and the connecting plates are detachably connected with the screen box.

Preferably, positioning plates are respectively arranged at two ends of the bar screen, and the positioning plates are detachably connected with the connecting plates.

Preferably, the bar screen is arranged at an angle of 15 ° -30 ° down the screen box.

Preferably, a cover plate is arranged at the upper part of the screen box, and a vent is formed at the upper part of the cover plate.

Preferably, the damping spring is a rubber spring.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the plurality of bar screens are integrally integrated on the connecting plate, the bar screens can be quickly detached and installed on the screen box, and each bar screen is installed on the connecting plate through the positioning plate, so that only the corresponding bar screen needs to be detached when the single bar screen is replaced later, the whole operation is simple, the use is convenient, and the operation flexibility is good;

2. The excitation motor is an excitation device integrating a power source and a vibration source, has high energy conservation, large excitation force, reliable use, simple adjustment and convenient use and maintenance;

3. The bar screen is formed by welding plates and sectional materials, and has the function of separating materials with different particle diameters by vibrating the materials;

4. The damping spring adopts the rubber spring, and has the functions of enabling the machine body to generate elastic vibration and reducing the transmission of vibration load to the foundation or the structure frame;

5. the frame is formed by welding plates and has the function of supporting the matrix.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic view of the arrangement of the bar screen of the present utility model.

Fig. 2 is a schematic diagram of an arrangement structure of an excitation motor according to the present utility model.

The reference numerals are explained as follows:

The screen box 1, the bar screen 2, the exciting motor 3, the frame 4, the damping spring 5 and the connecting plate 6.

Detailed Description

The technical scheme of the utility model is further explained below with reference to the accompanying drawings 1-2:

As shown in fig. 1-2, the utility model discloses a bar-type coarse screening machine, which comprises a frame 4, wherein a screen box 1 is arranged on the frame 4, a damping spring 5 is arranged between the frame 4 and the screen box 1, and the damping spring 5 is a rubber spring. That is, rubber springs are arranged between the frame and the screen box, so that the machine body generates elastic vibration, and vibration load is reduced to be transmitted to the foundation or the structural frame.

Specifically, as shown in fig. 2, the lower part of the screen box 1 is provided with an excitation motor 3. That is, the exciting motor in this embodiment is a vibration exciter integrating the power source and the vibration source, and has the advantages of high energy saving, large exciting force, reliable use, simple adjustment and convenient use and maintenance.

Specifically, as shown in fig. 1, a plurality of bar screens 2 are arranged in the screen box 1, and the bar screens 2 are sequentially arranged from top to bottom in a stepped shape, two ends of the bar screens 2 are respectively integrated on corresponding connecting plates 6, and the connecting plates 6 are detachably connected with the screen box 1. That is, a plurality of bar screens are sequentially arranged in a stepwise arrangement in a material conveying direction of the screen box in the screen box, and both ends of each bar screen are detachably provided on the link plate, respectively, and the link plate is detachably provided on the screen box so as to facilitate subsequent overall or individual removal of the bar screens.

In some embodiments, as shown in fig. 1, two ends of the bar screen 2 are respectively provided with a positioning plate, and the positioning plates are detachably connected with the connecting plate 6. That is, the locating plates are integrated at two ends of the bar screen and are installed on the connecting plate through bolts, when the corresponding bar screen is required to be dismounted subsequently, the corresponding bar screen can be dismounted only after the corresponding locating plates are dismounted, and the whole dismounting operation is simple and convenient.

It should be noted that the bar screen 2 is arranged at an angle of 15 ° -30 ° down the screen box 1. That is, the bar screen is arranged at an angle of 15 ° in this embodiment.

In some embodiments, a cover plate is arranged at the upper part of the screen box 1, and a ventilation opening is arranged at the upper part of the cover plate. That is, a cover plate can be covered on the upper part of the screen box, and when ore is screened in subsequent metallurgy, a negative pressure fan can be connected to the position of the ventilation opening, and the negative pressure fan is utilized to suck out the dust generated in the vibration screening process in a directional manner, so that the dust sucked out in subsequent concentration can be conveniently and environmentally-friendly treated by a water washing method.

It should be noted that the negative pressure fan can be replaced by a blowing system or a wind pressure system, and can be used for decoration garbage, household garbage, stale garbage, mine stone selection and the like.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (5)

1. The bar type coarse screening machine comprises a frame, a screen box is arranged on the frame, a damping spring is arranged between the frame and the screen box, and an excitation motor is arranged at the lower part of the screen box.

2. The bar type coarse screening machine according to claim 1, wherein two ends of the bar screen are respectively provided with a positioning plate, and the positioning plates are detachably connected with the connecting plates.

3. Bar coarse screening machine according to claim 1, characterized in that the bar screen is arranged at an angle of 15 ° -30 ° down the screen box.

4. The bar type coarse screening machine of claim 1, wherein a cover plate is arranged at the upper part of the screen box, and a vent is arranged at the upper part of the cover plate.

5. The bar screen machine of claim 1 wherein the damper springs are rubber springs.