A kind of spiral sampling thief
Technical field
The utility model relates to a kind of sampling thief, especially a kind of spiral sample collector that is applicable to automobile and train transportation bulk material.
Background technology
The sample collecting device that is used for the bulk material of transportations such as automobile and train at present, except that sampling with simple artificial spade, all adopt mechanical spiral sampling mostly, the form of spiral sampling thief is top symmetric sampling and division, and promptly the sample bucket of this sampling thief expects that with abandoning chute is symmetrically arranged on the top of spiral sampling thief.Exist sample splitting narrower, abandon material and shed seriously, sampling location and the serious deficiency of ambient air contamination than range of adjustment.
Summary of the invention
The purpose of this utility model is at the problem that exists in the prior art, provides a kind of simple in structure, and sample splitting is wideer than range of adjustment, does not have to abandon and expects to shed, and reduces the spiral sampling thief to sampling location and ambient air contamination.
The technical solution of the utility model: comprise the spiral drill tube, the top of spiral drill tube is provided with the driving head that is made of motor and speed reducer or oil motor, spiral drill tube top is provided with the sample bucket by downward-sloping setting, be located at open and close door and the electric pushrod of control open and close door or the sample control device that hydraulic jack constitutes in sample bucket exit, be provided with the spiral drill pipe that links to each other with driving head in the spiral drill tube, the spiral drill drum outer wall of described sample bucket below is provided with the division mouth, the top of division mouth is provided with adjustable plate, and division mouth top is provided with the anti-material of abandoning that is fixed on the spiral drill drum outer wall and sheds guard shield.
Described division mouth is at least one; The described anti-material of abandoning is shed guard shield and is made of rigidity guard shield, the sealed disc that is connected the extensible cover of rigidity guard shield bottom and is connected the extensible cover bottom; Described rigidity guard shield is axial opposite opened guard shield.
Beneficial effect: the utility model adopts and offer the division mouth on the spiral drill barrel of rigidity guard shield inboard, and division mouth top is provided with adjustable plate outside the spiral drill tube, by regulating the adjustable plate of control division mouth size, realize the division ratio of adjustable screw sampling thief, to adapt to the requirement of different material to the sample splitting ratio; Employing is fixed with extensible cover in rigidity guard shield lower end, and be provided with sealed disc in the extensible cover lower end, guarantee on the spiral sampling thief in the down-sampling operational process, sealed disc keeps and excellent sealing above the bed of material, guarantee not have to abandon and expect to shed, minimizing is to the pollution of sampling location and surrounding air, and it is simple in structure, division is wideer than range of adjustment, reliability is high, result of use good, has practicality widely.
Description of drawings
Fig. 1 is the structural drawing of the utility model spiral sampling thief.
Fig. 2 is the utility model spiral sampling thief division mouth schematic partial sectional view.
Among the figure: 1-driving head, 2-sample bucket, 3-spiral drill pipe, 4-spiral drill tube, 5-rigidity guard shield, 6-adjustable plate, 7-division mouth, 8-extensible cover, 9-sealed disc
Embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in Figure 1, the utility model mainly by driving head 1, sample control device, spiral drill pipe 3, spiral drill tube 4, adjustable plate 6, division mouth 7, anti-ly abandon that material is shed guard shield, sealed disc 9 constitutes.Driving head 1 is made of motor and speed reducer or oil motor; The sample control device is located at the open and close door in sample bucket 2 exits and the electric pushrod or the hydraulic jack of control open and close door and is constituted by the sample bucket 2 of downward-sloping setting; The anti-material of abandoning is shed guard shield and is made of rigidity guard shield 5, the sealed disc 9 that is connected the extensible cover 8 of rigidity guard shield 5 bottoms and is connected extensible cover 8 bottoms, and rigidity guard shield 5 is axial opposite opened guard shield.Driving head 1 is located at the top of spiral drill tube 4, and driving head 1 is made of motor reducer, and the transmission shaft of driving head 1 links to each other with spiral drill pipe 3 by shaft coupling, drives spiral drill pipes 3 rotations in the spiral drill tube 4.Sample bucket 2 is located on the spiral drill tube 4 upper outside walls, rigidity guard shield 5 is located at the below of the adjacent sample bucket 2 in spiral drill tube 4 outsides, the wall of the spiral drill tube 4 of rigidity guard shield 5 inboards is provided with division mouth 7, division mouth 7 is two, according to on-site actual situations, division mouth 7 can be for a plurality of, and the top of division mouth 7 is provided with the adjustable plate 6 of regulating division mouth 7 openings of sizes, and is shown in Figure 2.Rigidity guard shield 5 lower ends are fixed with extensible cover 8, and extensible cover 8 lower ends are fixed with sealed disc 9.
The course of work: the spiral sampling thief placed adopted material top, material is gathered in driving head 1 drving sprial drilling rod, 3 rotations operation downwards, the material sample is through 7 divisions of division mouth, a part is returned above the bed of material along the extensible cover 8 of rigidity guard shield 5 and lower end thereof and the toroidal cavity between spiral drill tube 4 outsides as abandoning material, be advanced into sample bucket 2 on another part continues, once sampling is finished in the circulation that moves up and down of spiral sampling thief.The sealed disc 9 of extensible cover 5 lower ends in the down-sampling operational process, keeps and good seal above the bed of material on the spiral sampling thief, guarantees not have to abandon and expects to shed, and reduces the pollution to sampling location and surrounding air.