阅读说明：本技术 一种采用3d激光测厚的煤矸筛选机 (Adopt gangue sieve separator of 3D laser thickness measurement ) 是由 贾星明 桂岳 张凯 疏义桂 方彧 于 2020-03-20 设计创作，主要内容包括：本发明公开了一种采用3D激光测厚的煤矸筛选机,包括传送履带,传送履带的上方安装有X射线源,传送履带的下方设置有与X射线源相对应的X射线接收器,所述传送履带上方还安装有3D激光发生器和激光接收器,3D激光发生器和激光接收器位于同一位置且与传送履带之间的距离为H,3D激光发生器发射点与X射线源发射点之间的水平距离为L,所述X射线接收器和激光接收器的输出端均与计算机电连接。该采用3D激光测厚的煤矸筛选机,能够对待选物料的厚度进行检测,并且将待选物料的厚度信息和二维投影信息相结合形成3D立体影像,减少了误差,对煤矸的识别更加准确。(The invention discloses a coal gangue screening machine adopting 3D laser thickness measurement, which comprises a conveying crawler belt, wherein an X-ray source is arranged above the conveying crawler belt, an X-ray receiver corresponding to the X-ray source is arranged below the conveying crawler belt, a 3D laser generator and a laser receiver are also arranged above the conveying crawler belt, the 3D laser generator and the laser receiver are positioned at the same position, the distance between the 3D laser generator and the conveying crawler belt is H, the horizontal distance between the emission point of the 3D laser generator and the emission point of the X-ray source is L, and the output ends of the X-ray receiver and the laser receiver are electrically connected with a computer.)

1. A coal and gangue screening machine adopting 3D laser thickness measurement comprises a conveying crawler belt, wherein an X-ray source is arranged above the conveying crawler belt, and an X-ray receiver corresponding to the X-ray source is arranged below the conveying crawler belt, and the coal and gangue screening machine is characterized in that a 3D laser generator and a laser receiver are also arranged above the conveying crawler belt, the 3D laser generator and the laser receiver are positioned at the same position, the distance between the 3D laser generator and the conveying crawler belt is H, and the horizontal distance between the emission point of the 3D laser generator and the emission point of the X-ray source is L;

the output ends of the X-ray receiver and the laser receiver are electrically connected with the computer, the output end of the computer is electrically connected with the input ends of the 3D laser generator, the X-ray source and the crawler motor of the conveying crawler belt respectively, the output end of the 3D laser generator is connected with the input end of the laser receiver through an optical signal, the output end of the X-ray source is connected with the input end of the X-ray receiver through an optical signal, and the output end of the speed sensor of the conveying crawler belt is electrically connected with the input end of the computer.

2. The gangue screening machine adopting 3D laser thickness measurement as claimed in claim 1, wherein: the speed sensor adopts a rotating speed sensor or an angular speed sensor and is used for detecting the rotating speed or the angular speed of a crawler motor on the conveying crawler.

3. The gangue screening machine adopting 3D laser thickness measurement as claimed in claim 1, wherein: the conveying crawler belt, the 3D laser generator, the laser receiver and the X-ray receiver are all installed on the rack.

4. The gangue screening machine adopting 3D laser thickness measurement as claimed in claim 1, wherein: the X-ray that X-ray source sent can penetrate the material of waiting to select that is located on the conveying track and transmit to the computer after X ray receiver received the signal to generating the two-dimensional projection on the computer according to the density of waiting to select the material, the light that 3D laser generator launched reflects to laser receiver receipt and transmits to the computer through waiting to select the material below it, according to 3D laser generator launch with laser receiver received time difference T and the distance H between conveying track and the 3D laser generator can calculate the thickness of waiting to select the material, by the horizontal projection of waiting to select the material and the thickness of waiting to select the material and the time difference that the material passes through X-ray source and 3D laser generator below, can generate the 3D stereoscopic image of waiting to select the material on the computer.

5. The gangue screening machine adopting 3D laser thickness measurement as claimed in claim 4, wherein the horizontal projection of the material to be selected and the time difference t between the thickness of the material to be selected and the time when the material passes through the X-ray source and the lower part of the 3D laser generator are L/2 pi nr or L/ω r, wherein n is the rotation speed of the crawler motor, ω is the angular speed of the crawler motor, and r is the radius of the transmission crawler belt transmission wheel.

6. The gangue screening machine adopting 3D laser thickness measurement as claimed in claim 4, wherein: the thickness d of the material to be selected is H- (V)_{Light (es)}T)/2, wherein V_{Light (es)}Is the speed of light propagation in air.

Technical Field

The invention relates to the technical field of sorting machines, in particular to a coal gangue screening machine adopting 3D laser thickness measurement.

Background

The coal gangue consists of a coal component with high coal content and a gangue component with low coal content, and the automatic selection of the coal gangue is one of important links in the production and processing process of modern coal and charcoal in the coal mine raw coal mining. In most coal mining production in China, mined coal is screened, and coal and gangue are separated and utilized by coal gangue separation equipment.

Disclosure of Invention

Solves the technical problem

Aiming at the defects of the prior art, the invention provides a coal gangue screening machine adopting 3D laser thickness measurement, and solves the problems that the traditional coal gangue screening machine only carries out 2D planar screening, is difficult to measure the thickness of a material and is inaccurate in detection.

Technical scheme

In order to achieve the purpose, the gangue screening machine adopting the 3D laser thickness measurement comprises a conveying crawler belt, an X-ray source is arranged above the conveying crawler belt, an X-ray receiver corresponding to the X-ray source is arranged below the conveying crawler belt, a 3D laser generator and a laser receiver are further arranged above the conveying crawler belt, the 3D laser generator and the laser receiver are located at the same position, the distance between the 3D laser generator and the laser receiver and the conveying crawler belt is H, and the horizontal distance between the emission point of the 3D laser generator and the emission point of the X-ray source is L.

The output ends of the X-ray receiver and the laser receiver are electrically connected with the computer, the output end of the computer is electrically connected with the input ends of the 3D laser generator, the X-ray source and the crawler motor of the conveying crawler belt respectively, the output end of the 3D laser generator is connected with the input end of the laser receiver through an optical signal, the output end of the X-ray source is connected with the input end of the X-ray receiver through an optical signal, and the output end of the speed sensor of the conveying crawler belt is electrically connected with the input end of the computer.

Further, the speed sensor is a rotation speed sensor or an angular speed sensor, and is used for detecting the rotation speed or the angular speed of the crawler motor on the conveying crawler.

Further, the conveyor track, the 3D laser generator, the laser receiver and the X-ray receiver are all mounted on the frame.

And further limiting, the X-ray emitted by the X-ray source can penetrate through the material to be selected on the conveying crawler belt and is transmitted to the computer after the signal is received by the X-ray receiver, the light emitted by the 3D laser generator is reflected to the laser receiver through the material to be selected below the laser generator to be received and transmitted to the computer, two-dimensional projection is generated on the computer according to the density of the material to be selected, the thickness of the material to be selected can be calculated according to the time difference T between the emission of the 3D laser generator and the reception of the laser receiver and the distance H between the conveying crawler belt and the 3D laser generator, and a 3D stereoscopic image of the material to be selected can be generated on the computer according to the horizontal projection of the material to be selected, the thickness of the material to be selected and the time difference between the material and the position.

Further limiting, the horizontal projection of the material to be selected, the thickness of the material to be selected and the time difference t between the material passing through the X-ray source and the lower part of the 3D laser generator are L/2 pi nr or L/ω r, wherein n is the rotating speed of the crawler motor, ω is the angular speed of the crawler motor, and r is the radius of the transmission crawler transmission wheel.

Further limiting, the thickness d of the material to be selected is H- (V)_{Light (es)}T)/2, wherein V_{Light (es)}Is the speed of light propagation in air.

Compared with the prior art, the invention has the following beneficial effects: this adopt coal gangue sieve separator of 3D laser thickness measurement can detect the thickness of waiting to select the material to combine together the thickness information and the two-dimensional projection information of waiting to select the material and form 3D stereoscopic image, reduced the error, it is more accurate to the discernment of coal gangue.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;

fig. 3 is a schematic block diagram of the present invention.

In the figure: 1. an X-ray source; 2. a 3D laser generator; 3. a laser receiver; 4. an X-ray receiver; 5. a conveying crawler; 6. materials to be selected; 7. a track motor; 8. a speed sensor; 9. a frame; 10 computer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the invention provides a technical scheme that the gangue screening machine adopting 3D laser thickness measurement comprises a conveying crawler 5, an X-ray source 1 is installed above the conveying crawler 5, an X-ray receiver 4 corresponding to the X-ray source 1 is arranged below the conveying crawler 5, a 3D laser generator 2 and a laser receiver 3 are also installed above the conveying crawler 5, the 3D laser generator 2 and the laser receiver 3 are located at the same position, the distance between the 3D laser generator 2 and the conveying crawler 5 is H, and the horizontal distance between the emission point of the 3D laser generator 2 and the emission point of the X-ray source 1 is L.

The output of X ray receiver 4 and laser receiver 3 all is connected with computer 10 electricity, the output of computer 10 respectively with 3D laser generator 2, the input electricity of X ray source 1 and the track motor 7 of conveying track 5 is connected, 3D laser generator 2's output passes through light signal with laser receiver 3's input and is connected, X ray source 1's output passes through light signal with X ray receiver 4's input and is connected, 8 outputs of speed sensor of conveying track 5 are connected with computer 10's input electricity.

The speed sensor 8 is a rotational speed sensor or an angular speed sensor for detecting the rotational speed or the angular speed of the track motor 7 on the conveying track 5.

The conveying crawler 5, the 3D laser generator 2, the laser receiver 3 and the X-ray receiver 4 are all mounted on the frame 9.

The X-ray that X-ray source 1 sent can penetrate the material 6 of selecting on being located the conveyer track 5 and transmit to computer 10 after receiving the signal by X-ray receiver 4, the light that 3D laser generator 2 launches is reflected to laser receiver 3 through the material 6 of selecting below it and is received and transmit to computer 10, and the density according to the material 6 of selecting generates the two-dimensional projection on computer 10, according to 3D laser generator 2 transmission and the time difference T that laser receiver 3 received and the distance H between conveyer track 5 and 3D laser generator 2 can calculate the thickness of the material 6 of selecting, by the horizontal projection of the material 6 of selecting and the thickness of the material 6 of selecting and the time difference that the material passes under X-ray source 1 and 3D laser generator 2, can generate the 3D stereoscopic image of the material 6 of selecting on the computer 10.

The horizontal projection of the material 6 to be selected, the thickness of the material 6 to be selected and the time difference t between the material passing through the X-ray source 1 and the lower part of the 3D laser generator 2 are L/2 pi nr or L/omega r, wherein n is the rotating speed of the crawler motor 7, omega is the angular speed of the crawler motor 7, and r is the radius of the transmission wheel of the transmission crawler 5.

The thickness d of the material to be selected 6 is H- (V)_{Light (es)}T)/2, wherein V_{Light (es)}Is the propagation velocity of light in air, V_{Light (es)}T is the distance light takes from emission to reception by the laser receiver 3, where for ease of calculation the positions of the 3D laser generator 2 and the laser receiver 3 are approximately at the same point.

This adopt coal gangue sieve separator of 3D laser thickness measurement can detect the thickness of waiting to select material 6 to combine together the thickness information and the two-dimensional projection information of waiting to select material 6 and form 3D stereoscopic image, reduced the error, it is more accurate to the discernment of coal gangue.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.