阅读说明：本技术 一种可调节皮带分料器及其分料比例调节方法 (adjustable belt distributor and distribution proportion adjusting method thereof ) 是由 王波 王铁力 辛德林 王倩 田达理 柳富明 李用芝 路云 张陶清 逯桂平 梁霏飞 于 2019-09-19 设计创作，主要内容包括：一种可调节皮带分料器,包括架设在皮带两侧的支架、位于皮带正上方的分料平台、控制系统,所述分料平台上装有主体调节机构、限位装置；根据想达到的分料调节比例计算刮拨旋转所需角度,根据刮拨旋转所需角度,在设定控制系统上设定参数,通过PLC输出脉冲信号传递给驱动伺服电机,驱动伺服电机的转轴根据脉冲数旋转指定角度,通过蜗杆与蜗轮以机构其所固有的传动比驱动分料刮拨旋转所需角度；结构实用可靠；通过皮带上物料按照所需比例进行精准调节分料,精确度高；可广泛应用于皮带输送项目的分料系统中。(An adjustable belt distributor comprises a bracket erected on two sides of a belt, a distribution platform positioned right above the belt and a control system, wherein the distribution platform is provided with a main body adjusting mechanism and a limiting device; calculating the scraping and poking rotation required angle according to the desired material distribution regulation ratio, setting parameters on a setting control system according to the scraping and poking rotation required angle, outputting pulse signals to a driving servo motor through a PLC (programmable logic controller), rotating a rotating shaft of the driving servo motor by a specified angle according to the pulse number, and driving the material distribution scraping and poking rotation required angle through a worm and a worm wheel according to the inherent transmission ratio of the mechanism; the structure is practical and reliable; the materials on the belt are accurately adjusted and distributed according to the required proportion, so that the precision is high; the material distributing system can be widely applied to belt conveying projects.)

1. the utility model provides an adjustable belt tripper which characterized in that: the belt conveyor comprises a bracket (1) erected on two sides of a belt, a material distribution platform (2) positioned right above the belt and a control system (19), and is characterized in that a main body adjusting mechanism and a limiting mechanism are arranged on the material distribution platform (2);

The main body adjusting mechanism comprises a driving servo motor (3), a bearing support (4), a worm wheel (6), a worm (5), a rear end fixed rotating shaft (8) and a distributing scraper (9); the output end of the driving servo motor (3) is fixedly connected with the worm (5), the worm wheel (6) is matched with the worm (5), the worm wheel (6) is installed on the rear end fixed rotating shaft (8) and can drive the rear end fixed rotating shaft (8) to rotate, the rear end of the distributing scraping and poking device (9) is installed at the lower end of the rear end fixed rotating shaft (8) and is positioned below the distributing platform (2), and the distributing scraping and poking device (9) is of a coulter type;

the limiting mechanism comprises a limiting driving motor (7), a gear (11), a rack (10), a limiting movable baffle (12), a limiting slide block (13), a limiting fixed baffle (16) and a front end supporting shaft (15) connected with the front end of the distributing scraping and poking device (9), the output end of the limiting driving motor (7) is fixedly connected with the gear (11), the rack (10) is meshed with the gear (11), the front end of the rack (10) is fixedly connected with the limiting movable baffle (12), a limiting slide block (13) with a sliding groove and an arc-shaped groove (18) penetrating through the material distributing platform (2) are arranged between the limiting fixed baffle (16) and the limiting movable baffle (12), the upper end of the front end support shaft (15) penetrates through the arc-shaped groove (18) and is sleeved in the sliding groove of the limiting sliding block (13), and the limiting sliding block (13) can slide left and right on the material distributing platform (2).

2. The adjustable belt dispenser of claim 1, wherein: the material distributing platform is characterized in that a rack limiting plate (17) is further arranged on the rack (10), the rack limiting plate (17) is rectangular and fixed on the material distributing platform (2), and the rack (10) can slide on the rack limiting plate (17).

3. The adjustable belt dispenser of claim 1, wherein: the front end support shaft is a stepped shaft and is used for preventing the material scraping and poking from being vertically lifted due to impact of the materials.

4. The adjustable belt dispenser of claim 1, wherein: one side of the limiting fixed baffle (16) close to the front end supporting shaft (15) is provided with a U-shaped clamping groove (20), and the limiting movable baffle (12) is just clamped into the U-shaped clamping groove (20) and can slide along the inner wall of the U-shaped clamping groove.

5. the adjustable belt dispenser of claim 1, wherein: the front end of the material scraping and poking device (9) is provided with a streamline anti-collision angle, so that the impact of the material on the material scraping and poking device is reduced, and the surface and the bottom surface of the material scraping and poking device (9) are coated with wear-resistant high-molecular-weight polyethylene with a smooth surface.

6. The adjustable belt dispenser of claim 1, wherein: and rubber friction plates are arranged on the contact surfaces of the limiting sliding block (13), the limiting fixed baffle (16) and the limiting movable baffle (12).

7. the adjustable belt dispenser of claim 1, wherein: and a circle of wear-resistant rubber is arranged in the middle mounting hole of the limiting sliding block (13).

8. The method for adjusting the material distribution ratio of an adjustable belt distributor as claimed in any one of claims 1 to 7, wherein:

When the control system (19) outputs an action signal, a preset quantity positive pulse signal is sent to the limit driving motor (7), the limit driving motor (7) drives the rack (10) and the limit movable baffle (12) to move backwards for a fixed distance through the gear (11), the limit sliding block (13) is in an unlocking state at the moment,

after the limit driving motor (7) runs completely, the proportion a is adjusted according to the wanted distribution: b, calculating a rotation required angle of the scraping and poking rod (9), setting parameters on a setting control system (19) according to the rotation required angle of the scraping and poking rod (9), outputting pulse signals to a driving servo motor (3) through a PLC (programmable logic controller), rotating a rotating shaft of the driving servo motor (3) by a specified angle according to the pulse number, and driving the material-distributing scraping and poking rod (9) to rotate by the required angle according to the inherent transmission ratio of a mechanism through a worm (5) and a worm wheel (6);

The angle of the distributing scraping and poking device (9) at each fixing time can store data in the upper computer, when the angle needs to be adjusted, the upper computer can send out a required positive or negative pulse to the driving servo motor (3) according to the difference value between the required angle and the existing angle, so that the distributing scraping and poking device (9) is adjusted to be positively transmitted or reversely rotated to the required angle;

When the material distributing scraper rotates to a target position, the servo motor is driven to stop rotating, the upper computer outputs a preset quantity negative pulse signal to the limiting driving motor (7), a rotating shaft of the limiting driving motor (7) rotates reversely by a quantitative angle, the gear (11) drives the rack (10) and the limiting movable baffle (12) to move reversely by a quantitative distance, and the limiting sliding block (13) is in a locking state at the moment.

9. the method for adjusting the material distribution ratio of an adjustable belt distributor as claimed in claim 8, wherein: adjusting the proportion a according to the desired distribution: b, the calculation method for calculating the rotation angle of the scraping and poking device (9) is as follows:

the initial angle of the material distributing scraper (9) is set to be alpha, the angle of the material distributing scraper (9) in the embodiment after rotating from the initial angle is beta, and the beta-alpha is the angle required by the rotation of the material distributing scraper (9) in the driving mode:

the method comprises two working conditions:

When the working condition is beta <90 degrees, setting O as a projection point of the axis of the rear fixed rotating shaft 8 on a horizontal plane, setting the position of O in the middle of the belt, OB as the length of the material separating scraper 9, A, Z as an intersection point of an arc line drawn by OB on the belt with O as a center and the edge of the belt, AZ equal to the width of the belt, angle alpha as an initial angle, beta as a rotated angle, OD as a horizontal projection of OA, OE as a horizontal projection of OB, and OD perpendicular to OM, wherein the material separating ratio a: b on the belt is equal to the length ratio AC: CZ of the belt separated by the front end of the material separating scraper 9, AC ²: AB ² -BC ²: 2. sin.Cb (1/2. beta., (beta-alpha)), BC. BE-AD, BE. OB. sin beta., AD: OA. alpha, CZ. AZ-AC, and the rotating angle in the calculation, only beta is an unknown quantity, b is a variable setting quantity, and the rotating angle is calculated by using the known parameters;

Working conditions are as follows: when beta is more than 90 degrees, BE is OB sin (180 degrees-beta), the other parameters are consistent with the calculation of the working condition I, and the rotating angle beta can BE obtained in the same way;

because the calculation processes under the two working conditions are slightly different, when the material distribution ratio is set as a: and b is less than or equal to 1:1, selecting a working condition I calculation result to control the equipment, and setting the material distribution ratio as a: and when b is larger than 1:1, selecting a working condition two calculation result to control the equipment.

Technical Field

the invention relates to a belt distributor, in particular to an adjustable belt distributor and a distribution proportion adjusting method thereof, which can be widely applied to a belt tail distribution system of a belt conveying project and belong to the technical field of material conveying equipment.

Background

the gears that traditional belt tripper set up are less, generally can only equally divide the material on the belt, the unilateral divides the material or specific proportion divides the material, can't adjust to suitable proportion to divide the material on the belt according to the material demand of equipment behind the belt feeder, and the operating mode is comparatively single, can't satisfy the requirement that the material demand of equipment behind the belt feeder changes.

disclosure of Invention

In order to solve the problems that a traditional belt distributor is single in distribution proportion and inconvenient to control and operate, the invention provides an adjustable belt distributor which can meet various distribution requirements on site and can distribute materials on a belt conveyor in proportion according to requirements through accurate adjustment.

The technical scheme adopted by the invention is as follows: an adjustable belt distributor comprises a bracket erected at two sides of a belt, a distribution platform positioned right above the belt and a control system, and is characterized in that a main body adjusting mechanism and a limiting mechanism are arranged on the distribution platform;

the main body adjusting mechanism comprises a driving servo motor, a bearing support, a worm wheel, a worm, a rear end fixed rotating shaft and a distributing scraper; the output end of the driving servo motor is fixedly connected with the worm, the worm wheel is matched with the worm, the worm wheel is arranged on the rear end fixed rotating shaft and can drive the rear end fixed rotating shaft to rotate, the rear end of the distributing scraper is arranged at the lower end of the rear end fixed rotating shaft and is positioned below the distributing platform, and the distributing scraper is of a coulter type;

The limiting mechanism comprises a limiting driving motor, a gear, a rack, a limiting movable baffle, a limiting sliding block, a limiting fixed baffle and a front end supporting shaft which is connected with the distributing scraping and poking front end, the output end of the limiting driving motor is fixedly connected with the gear, the rack is meshed with the gear, the front end of the rack is fixedly connected with the limiting movable baffle, the limiting sliding block with a sliding groove and an arc groove which penetrates through the distributing platform are arranged between the limiting fixed baffle and the limiting movable baffle, the upper end of the front end supporting shaft penetrates through the arc groove and is sleeved in the sliding groove of the limiting sliding block, and the limiting sliding block can slide left and right on the distributing platform.

Furthermore, a rack limiting plate is further arranged on the rack, the rack limiting plate is rectangular and fixed on the material distributing platform, and the rack can slide on the rack limiting plate.

Furthermore, the front end support shaft is a stepped shaft and is used for preventing the material scraping and poking from being vertically lifted due to impact of the material.

Furthermore, a U-shaped clamping groove is formed in one side, close to the front end supporting shaft, of the limiting fixed baffle, and the limiting movable baffle is just clamped into the U-shaped clamping groove and can slide along the inner wall of the U-shaped clamping groove.

Furthermore, the front end of the material distributing scraper is provided with a streamline anti-collision angle, so that the impact of the material on the material distributing scraper is reduced, and the surface and the bottom surface of the material distributing scraper are coated with wear-resistant high-molecular-weight polyethylene with a smooth surface.

Furthermore, rubber friction plates are arranged on the contact surfaces of the limiting sliding block, the limiting fixed baffle and the limiting movable baffle and used for locking the limiting sliding block through friction force generated when the friction plates are tightly pressed.

Furthermore, a circle of wear-resistant rubber is arranged in the middle of the limiting sliding block through a mounting hole.

The invention has the advantages and characteristics that: 1. the structure is practical and reliable; 2. the materials on the belt are accurately adjusted according to the required proportion to be distributed, and the precision is high. The material distributing system can be widely applied to belt conveying projects.

Drawings

FIG. 1 is a schematic top view of the preferred embodiment of the present invention;

FIG. 2 is a schematic side view of the embodiment of FIG. 1;

FIG. 3 is a schematic perspective view of FIG. 1;

FIG. 4 is an enlarged schematic view of FIG. 3 at the dashed line;

FIG. 5 is a schematic view of the structure of FIG. 3 from another angle;

FIG. 6 is a schematic perspective view of a material separating scraper (with a rear end fixed rotating shaft and a front end supporting shaft) according to a preferred embodiment of the present invention;

fig. 7 and 8 are calculation demonstration diagrams of conversion of a material distribution scraping angle and a material distribution ratio on a belt under two working conditions according to the embodiment of the invention;

FIG. 9 is a control schematic of the preferred embodiment of the present invention;

The reference numbers in the figures denote: 1-a scaffold; 2-a working platform; 3-driving a servo motor; 4-a bearing support; 5-a worm; 6-a worm gear; 7-limiting a driving motor; 8-fixing a rotating shaft at the rear end; 9-material separation scraping; 10-a rack; 11-a gear; 12-a limit movable baffle; 13-a limiting slide block; 14-a housing; 15-front end support shaft; 16-a limit fixed baffle; 17-rack limiting plate, 18-arc groove, 19-control system and 20-U-shaped clamping groove.

Detailed Description

The invention is further illustrated with reference to the accompanying drawings: