CN111659603A

CN111659603A - Novel drum screen device

Info

Publication number: CN111659603A
Application number: CN202010630005.8A
Authority: CN
Inventors: 袁志业; 张文涛; 吴军
Original assignee: Beijing Zhengshi Environmental Protection Engineering Co ltd
Current assignee: Beijing Zhengshi Environmental Protection Engineering Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-09-15
Anticipated expiration: 2040-07-03
Also published as: CN111659603B

Abstract

The invention discloses a novel drum screen device which comprises a first main rotating shaft, a second main rotating shaft, a driven rotating wheel, a first support, a second support, a screen body, a first motor and a second motor, wherein the first main rotating shaft is arranged on the first main rotating shaft; the two main rotating shafts are respectively arranged on two sides of the screen body and are meshed with screen holes of the screen body through the protruded conical gears, the meshed positions are positioned above the middle part of the screen body, the main rotating shafts rotate to drive the screen body to rotate, and the first main rotating shaft and the second main rotating shaft are respectively fixed on the first support and the second support through the first motor and the second motor and keep the rotating shaft directions of the first main rotating shaft, the second main rotating shaft and the screen body to be parallel; the screen body is provided with four secondary rotating wheels which are respectively positioned at four corners below the middle part of the screen body, and the screen body rotates to drive the secondary rotating wheels to rotate. The invention has the advantages of simple structure, low cost and the like, and is particularly suitable for being applied to the operation occasions such as garbage disposal and the like with poor working environment, high labor intensity and the like.

Description

Novel drum screen device

Technical Field

The invention relates to the field of industry and environmental protection, in particular to a special drum screen device for garbage disposal.

Background

The drum screen is one of general screening machines, and has the characteristics of simple and convenient structure, simple operation, capability of obtaining materials with different particle sizes in a certain range by replacing the screen, and the like. The drum sieve is applicable to the sorting of different particulate matters, and the basic operating principle of the drum sieve is as follows: the particulate matter rotates to a certain height along with a screen drum, is thrown and falls under the action of gravity, and is filtered by a screen to form screening. The mechanism mainly comprises a transmission part, a rotary drum, a frame, a riding wheel, an oversize material hopper, an undersize material hopper, a dustproof device, a distributor and the like. Because the content variety is many, the composition is complicated in the rubbish, often can take place the sieve mesh and block up the problem with general cylinder stopper when letter sorting, the sieve mesh blocks up and can lead to screening effect low, consequently often needs to stop the machine and carry out artifical clearance to the device, and the clearance of device not only needs professional operating procedure, wastes time and energy, can reduce the effective operating time of drum sieve moreover, consequently, designs a section and is convenient for the cylinder stopper device of clearance and has very important meaning.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art, and provides a novel drum screen device which is good in service performance, good in stability, low in use cost and convenient to maintain.

The technical problem of the invention is mainly solved by the following technical scheme:

the invention discloses a novel drum screen device which comprises a first main rotating shaft, a second main rotating shaft, a driven rotating wheel, a first support, a second support, a screen body, a first motor and a second motor, wherein the first main rotating shaft is arranged on the first main rotating shaft; the two main rotating shafts are respectively arranged on two sides of the screen body and are meshed with screen holes of the screen body through the protruded conical gears, the meshed positions are positioned above the middle part of the screen body, the main rotating shafts rotate to drive the screen body to rotate, and the first main rotating shaft and the second main rotating shaft are respectively fixed on the first support and the second support through the first motor and the second motor and keep the rotating shaft directions of the first main rotating shaft, the second main rotating shaft and the screen body to be parallel; the screen body is provided with four secondary rotating wheels which are respectively positioned at four corners below the middle part of the screen body, the screen body rotates to drive the secondary rotating wheels to rotate, and the screen body further comprises a third support, wherein the secondary rotating wheels are directly fixed on the third support and keep the five directions of the rotating shafts of the secondary rotating wheels and the screen body parallel. According to the requirement of workload, the first main rotating shaft and the second main rotating shaft can be driven by the first motor and the second motor to work simultaneously or alternatively.

Furthermore, the screen body is cylindrical, regular screen holes are distributed on the cylindrical surface, the first main rotating shaft and the second main rotating shaft are long cylinders, and the length of the first main rotating shaft and the length of the second main rotating shaft are equal to the length of the cylindrical surface part of the screen body with the screen holes.

Furthermore, no sieve holes are arranged at the contact positions of the sieve body and the four secondary rotating wheels so as to prevent undersize from entering the secondary rotating wheels.

Furthermore, the sieve mesh on the sieve body is in a semi-conical shape, the diameter of the round hole on the outer side of the sieve body is larger than that of the round hole on the inner side, and the shape of the gear on the first main rotating shaft and the second main rotating shaft is in a semi-conical shape complementary with the sieve mesh.

Furthermore, the first support and the second support can be lifted through the mechanical blocking arm, when the first support or the second support is lifted, the gear of the first main rotating shaft or the second main rotating shaft is separated from the screen body, and when the first support or the second support is lowered, the gear of the first main rotating shaft or the second main rotating shaft is meshed with the screen body.

The invention has the beneficial effects that: the gear of the first main rotating shaft 1 or the second main rotating shaft is meshed with the sieve pores of the sieve body, so that on one hand, power is provided for rotation of the sieve body, and on the other hand, the gear of the first main rotating shaft 1 or the second main rotating shaft can eject sundries in the sieve pores in the rotating process, self-cleaning of the sieve pores is realized, and the problem of blockage of the sieve pores is effectively prevented; after the rotary screen works for a long time, if the gears of the first main rotating shaft or the second main rotating shaft need to be cleaned, the gears can be alternately cleaned under the condition that the rotary screen does not stop by stopping one of the main rotating shafts; first main pivot, second main pivot are located the well upper portion of screen frame and can reduce the pollution of screening thing to first main pivot, second main pivot on the one hand, and on the other hand, even there is a small amount of screening thing to glue on the gear of first main pivot, second main pivot, because the gear of first main pivot, second main pivot only is local and the sieve mesh interlock of screen frame, other the overwhelming majority is unsettled, and high-speed pivoted gear helps throwing away the screening thing that glues on the gear. The whole device has the advantages of energy conservation, easy cleaning, convenient use, wide application range and the like, and is particularly suitable for being applied to long-time continuous working scenes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an axial view of the present invention.

Fig. 2 is a transverse view of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 and 2, a novel trommel device comprises a first main rotating shaft 1, a second main rotating shaft 2, a driven rotating wheel 3, a first bracket 8, a second bracket 9, a screen body 5, a first motor 6 and a second motor 7; the two main rotating shafts are respectively arranged on two sides of the screen body and are meshed with the screen holes of the screen body 5 through the protruded conical gears, the meshed position is positioned above the middle part of the screen body, the main rotating shafts rotate to drive the screen body 5 to rotate, and the first main rotating shaft 1 and the second main rotating shaft 2 are respectively fixed on the first support 8 and the second support 9 through the first motor 6 and the second motor 7 and keep the rotating shaft directions of the first main rotating shaft, the second main rotating shaft and the screen body parallel; the auxiliary rotating wheels 3 are four and are respectively positioned at four corners below the middle part of the screen body, the screen body rotates to drive the auxiliary rotating wheels to rotate, the auxiliary rotating wheels further comprise a third support 4, and the auxiliary rotating wheels are directly fixed on the third support 4 and keep the five directions of the rotating shafts of the auxiliary rotating wheels and the screen body parallel. According to the requirement of workload, the first main rotating shaft and the second main rotating shaft can be driven by the first motor and the second motor to work simultaneously or alternatively.

The screen body 5 is cylindrical, regular screen holes are distributed on the cylindrical surface, the screen holes are through holes with the same diameter from top to bottom, the first main rotating shaft 1 and the second main rotating shaft 2 are long cylinders, and the length of the first main rotating shaft and the length of the second main rotating shaft are equal to the length of the cylindrical surface part of the screen body with the screen holes. The auxiliary rotating wheel 3 plays a role in supporting the screen body 5, and screen holes are not arranged at the contact positions of the screen body 5 and the four auxiliary rotating wheels 3 so as to prevent undersize from entering the auxiliary rotating wheels.

The first support and the second support can be lifted through the mechanical blocking arm, when the first support or the second support is lifted, the gear of the first main rotating shaft or the second main rotating shaft is separated from the screen body, and when the first support or the second support is lowered, the gear of the first main rotating shaft or the second main rotating shaft is meshed with the screen body.

Example 2

The structure of this embodiment is substantially the same as that of embodiment 1, and the difference is that the sieve pores on the sieve body 5 are in the shape of a semi-circular cone, the diameter of the outer circular pore is larger than that of the inner circular pore, and the shape of the gears on the first main rotating shaft 1 and the second main rotating shaft 2 is in the shape of a semi-circular cone complementary to the sieve pores.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A novel drum screen device comprises a first main rotating shaft, a second main rotating shaft, a driven rotating wheel, a first support, a second support, a screen body, a first motor and a second motor; the two main rotating shafts are respectively arranged on two sides of the screen body and are meshed with screen holes of the screen body through the protruded conical gears, the meshed positions are positioned above the middle part of the screen body, the main rotating shafts rotate to drive the screen body to rotate, and the first main rotating shaft and the second main rotating shaft are respectively fixed on the first support and the second support through the first motor and the second motor and keep the rotating shaft directions of the first main rotating shaft, the second main rotating shaft and the screen body to be parallel; the screen body is provided with four secondary rotating wheels which are respectively positioned at four corners below the middle part of the screen body, the screen body rotates to drive the secondary rotating wheels to rotate, and the screen body further comprises a third support, wherein the secondary rotating wheels are directly fixed on the third support and keep the five directions of the rotating shafts of the secondary rotating wheels and the screen body parallel.

2. A novel trommel device as claimed in claim 1 wherein: the screen body is cylindrical, regular screen holes are distributed on the cylindrical surface, the first main rotating shaft and the second main rotating shaft are long cylinders, and the length of the first main rotating shaft and the length of the second main rotating shaft are equal to the length of the cylindrical surface part of the screen body with the screen holes.

3. A novel trommel device as claimed in claim 1 wherein: furthermore, no sieve holes are arranged at the contact positions of the sieve body and the four secondary rotating wheels.

4. A novel trommel device as claimed in claim 1 wherein: the sieve mesh on the sieve body is in a semi-conical shape, the diameter of the round hole on the outer side of the sieve body is larger than that of the round hole on the inner side, and the shape of the gear on the first main rotating shaft and the second main rotating shaft is in a semi-conical shape complementary with the sieve mesh.

5. A novel trommel device as claimed in claim 1 wherein: the first support and the second support can be lifted through the mechanical blocking arm, when the first support or the second support is lifted, the gear of the first main rotating shaft or the second main rotating shaft is separated from the screen body, and when the first support or the second support is lowered, the gear of the first main rotating shaft or the second main rotating shaft is meshed with the screen body.