Vertical belt middle sampling head

A sampling head and belt technology, applied in the field of sampling equipment, can solve the problems of representative deviation, residual material, large volume of the transmission mechanism, etc., and achieve the effect of complete sampling section, no residual material, and flexible installation position.

Active Publication Date: 2009-10-07
浙江杭钻机械制造股份有限公司
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AI-Extracted Technical Summary

Problems solved by technology

The workload of the sampling volume increases, the opening width of the sampling bucket increases with the increase of the sampling particle size, the transmission power increases, the transmission mechanism is bulky, and the installation space of the horizontal structure direct drive is limited, which cannot meet the needs of larger belt conveyors. sampling requirements
Generally, the supporting rollers of the belt conveyor ...
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Method used

In conjunction with Fig. 1 Fig. 2 and Fig. 5, sampling bucket 2 both sides adopt multi-roller support, two groups of arc idler rollers 3 constitute multi-idle roller support structure, make the belt forming of sampling position closer to circular arc, more in line with The trajectory of the sampling hopper, the sampling section of the sampling hopper is more complete, leaving no residual material. The number of a single set of idler rollers is determined according to the belt width, and can range from 5 idler rollers to 11 idler rollers (the structure shown in the figure is in the form of 9 idler rollers).
Sampling head frame 1 can adopt steel plate flanging molding process, and materials ...
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Abstract

The invention provides a vertical belt middle sampling head, which comprises a frame structure, a sampling bucket structure and a multiple supporting rollers supporting construction; the sampling head frame is formed into door frame type structure; the sampling bucket is connected to the connection plate on the transmission shaft by a bolt; the transmission shaft is suspended in the middle position on the inner side of the frame by an integrated vertical bearing seat; multiple supporting rollers support is adopted on both sides of the sampling bucket; the belt on the sampling position is shaped more approaching to arc; a discharging opening is disposed on outer side of the supporting rollers. The sampling buckets rotates around the shaft to obtain the materials from the whole section, and dumps to the discharging opening; and completes one sampling period once rotating one cycle. The invention adopts vertical door frame structure, has a flexible mounting position, can be mounted in the whole working intermediate section of the belt conveyor, is not influenced by the central rack of the belt support, is suitable for large-width belt; and the belt is shaped more approaching to arc accordance with the sampling bucket movement track, thus the sampling bucket sampling section is more perfect to has no surplus material.

Application Domain

Technology Topic

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  • Vertical belt middle sampling head
  • Vertical belt middle sampling head
  • Vertical belt middle sampling head

Examples

  • Experimental program(1)

Example Embodiment

[0016] The specific embodiments of the present invention will be described below in conjunction with the drawings. Such as figure 1 , figure 2 As shown, the central sampling head of the vertical belt of the present invention includes a multi-roller support structure composed of a frame 1, a sampling bucket 2, and two sets of arcuate rollers 3.
[0017] The frame 1 is installed on an independent floor stand, and is not affected by the belt conveyor bracket and the intermediate frame.
[0018] Combine Figure 1 to Figure 4 , The sampling bucket body 26 is connected to the connecting plate on the transmission shaft 23 through the connecting bolt 22, and the integral vertical bearing unit 24 is used to suspend the transmission shaft in the inner middle of the frame 1. The transmission reduction device 4 is installed on one side of the frame 1, and the sampling bucket 2 is driven to rotate around the transmission shaft 23 through a belt or chain transmission.
[0019] Combine figure 1 figure 2 with Figure 5 , Sampling bucket 2 is supported by multiple rollers on both sides. Two sets of arc rollers 3 form a multiple roller support structure, so that the belt shape of the sampling part is closer to the arc, which is more in line with the movement trajectory of the sampling bucket, and the sampling section of the sampling bucket is more Complete and leave no remaining material. The number of a single set of rollers is determined by the belt width, from 5 rollers to 11 rollers (the structure shown in the figure is 9 rollers).
[0020] image 3 with Figure 4 It is the structure of sampling bucket 2. The upper part is the counterweight 21, the sampling bucket 26 is connected to the connecting plate on the transmission shaft 23 through the connecting bolt 22, the sampling bucket 26 is provided with a liner 25 on the inside, and a scraper 28 is installed on the outside of the lower part through a pressure plate 27, The scraper plate 28 is in direct contact with the conveyor belt 6.
[0021] The transmission deceleration device 4 drives the sampling hopper 2 to rotate around the drive shaft 23, the scraper 28 moves along the conveyor belt 6, and the sampling hopper body 26 pushes a complete section of material 5 equal to its own width into the discharge port 7, completing a sampling cycle. The transmission mechanism is equipped with a braking device, and the start and braking of the sampling bucket are controlled by sensors and PLC. The sampling period can be adjusted within the range of 0-30min.
[0022] Sampling head frame 1 can be formed by steel plate hemming, which saves materials and is light in weight. It adopts a portal structure and has good overall rigidity; the inner side of the frame through which the materials pass is lined with replaceable antifriction polymer materials, which reduces Viscous materials stick to the inner wall and cause channel blockage; the installation position is flexible, and it can be installed in the middle of the belt conveyor. It can be installed on an independent floor stand without being affected by the belt conveyor stand and intermediate stand;
[0023] The sampling bucket can adopt a welded structure, made of lightweight materials, with a light structure, a small moment of inertia, and corrosion resistance.
[0024] The belt sampling head is suitable for belt width ≥1400mm and material size ≤350mm.
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Description & Claims & Application Information

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