Novel electric spiral sampling head

Abstract

The utility model relates to the field of coal and ore sampling accessory devices, and discloses a novel electric spiral sampling head which comprises a main body frame, a lifting driving assembly is arranged at the top end of the outer wall of the main body frame, a lifting chain is arranged on an output shaft of the lifting driving assembly, and a spiral sampling cylinder is connected to the inner wall of the main body frame in a sliding mode. A tie bar is fixedly connected to the bottom end of the outer wall of the joist, a lifting protective cover is fixedly connected to the bottom end of the outer wall of the tie bar, a lifting cloth curtain is fixedly connected to the outer wall of the top end of the spiral sampling cylinder, and a pressure sensor is fixedly connected to the outer wall of the left side of the spiral sampling cylinder. According to the utility model, the lifting shield and the lifting cloth curtain can ascend and descend along with the spiral sampling cylinder, the lifting shield stops after descending to the top of materials of a vehicle, material dust returning to a carriage in the sampling process can be blocked by the lifting shield, and the upper part of the material dust can be blocked by the lifting cloth curtain and the main body frame, so that dust dissipation is effectively inhibited.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary devices for coal and ore sampling, in particular to a new type of electric spiral sampling head. Background Technique

[0002] At present, for the sample collection devices of bulk materials transported by vehicles such as cars and trains, except for simple manual shoveling sampling, most of them adopt mechanical spiral sampling. The spiral sampling device is the key equipment of the coal and ore full-section sampling device.

[0003] However, there are still some problems with the existing spiral sampling devices. Firstly, it is the environmental temperature. In the cold regions of northern China, the temperature is too low in winter. During the sampling process, the materials freeze, causing the equipment to malfunction. Seasonal use brings a lot of troubles to the equipment manufacturers. And the spiral sampling device takes coal or ore materials from the vehicle. During the sampling process, some coal samples need to return to the carriage, and a large amount of dust and smoke fly up, causing environmental pollution and increasing the environmental protection pressure on the manufacturers. Also, in order to ensure the representativeness of sampling, the full section is required. However, due to the great differences in vehicles, problems such as the height of the vehicle bottom and the arrangement of the tension bars, the spiral sampling head often pierces through the vehicle bottom and hits the tension bars, vehicle sides, etc., easily causing damage to the vehicle or the equipment, resulting in certain losses to the using manufacturers. For this reason, a new type of electric spiral sampling head is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a new type of electric spiral sampling head, aiming to improve the problems of seasonal applicability, dust dispersion and accidental damage to the vehicle body in the existing technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A new type of electric spiral sampling head, including a main body frame, a lifting drive assembly is arranged at the top end of the outer wall of the main body frame, a lifting chain is arranged on the output shaft of the lifting drive assembly, a spiral sampling cylinder is slidably connected to the inner wall of the main body frame, a supporting beam is in contact with the top end of the outer wall of the spiral sampling cylinder, a tension bar is fixedly connected to the bottom end of the outer wall of the supporting beam, a lifting protective cover is fixedly connected to the bottom end of the outer wall of the tension bar, a lifting cloth curtain is fixedly connected to the top end of the outer wall of the spiral sampling cylinder, a pressure sensor is fixedly connected to the outer wall of the left side of the spiral sampling cylinder, a sampling cylinder heating belt is arranged on the inner wall of the spiral sampling cylinder, a temporary storage hopper is fixedly connected to the top end of the outer wall of the spiral sampling cylinder, and a hopper heating plate is arranged on the outer wall of the temporary storage hopper.

[0006] As a further description of the above technical solution:

[0007] One end of the lifting chain away from the lifting drive assembly is rotatably connected to the inner wall of the bottom end of the main body frame.

[0008] As a further description of the above technical solution:

[0009] The bottom end of the outer wall of the lifting cloth curtain is fixedly connected to the bottom end of the outer wall of the main frame.

[0010] As a further description of the above technical solution:

[0011] One end of the lifting chain is fixedly connected to the top end of the left outer wall of the spiral sampling cylinder, and the other end of the lifting chain is fixedly connected to the bottom end of the outer wall of the pressure sensor.

[0012] As a further description of the above technical solution:

[0013] The lifting protective cover is slidably connected to the outer wall of the main frame.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the lifting protective cover and the lifting cloth curtain can rise and fall with the spiral sampling cylinder. After the lifting protective cover descends to the top of the vehicle's material and stops, the material dust returning to the carriage during the sampling process will be blocked by the lifting protective cover, and the upper part will be blocked by the lifting cloth curtain and the main frame, effectively suppressing the dust dispersion and protecting the environment.

[0016] 2. In the utility model, heating belts are added to both the spiral sampling cylinder and the upper temporary storage hopper. For the cold northern regions, the heating function can be turned on in winter to protect the temperature of the two parts where material freezing is likely to occur, avoiding freezing failures due to too low temperature and improving the equipment applicability.

[0017] 3. In the utility model, when the spiral sampling cylinder touches the vehicle bottom, or the tension bars or the car body of the carriage, the spiral sampling cylinder can no longer descend smoothly, the pressure of the equipment drive mechanism rises, the pressure sensor gives a set value signal, the spiral sampling head stops descending, and the sampling point is changed to continue working, effectively preventing sampling accidents, protecting the vehicle and the equipment, and improving the equipment safety and service life. Description of the Drawings

[0018] Figure 1 It is the overall front view schematic diagram of a new type of electric spiral sampling head proposed by the utility model;

[0019] Figure 2 It is the side view schematic diagram of the main frame of a new type of electric spiral sampling head proposed by the utility model;

[0020] Figure 3 It is the sectional view schematic diagram of the sampling heating belt of a new type of electric spiral sampling head proposed by the utility model.

[0021] Legend Explanation:

[0022] 1. Main frame; 2. Temporary storage hopper; 3. Hopper heating plate; 4. Pressure sensor; 5. Lifting chain; 6. Spiral sampling cylinder; 7. Lifting drive assembly; 8. Support beam; 9. Bracing; 10. Sampling cylinder heating tape; 11. Lifting shield; 12. Lifting curtain. Detailed implementation

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Refer to Figures 1-3 , an embodiment provided by the present invention: a new type of electric spiral sampling head, including a main frame 1. The main frame 1 is U-shaped, with a cavity on its surface, so that the spiral sampling cylinder 6 can move up and down on its inner wall, and it is convenient to temporarily store the sampled material at the temporary storage hopper 2. At the top of the outer wall of the main frame 1, there is a lifting drive assembly 7. The lifting drive assembly 7 is a drive motor. By rotating the rotor inside the drive motor, the lifting chain 5 can be driven to rotate inside the main frame 1. And at the bottom of the main frame 1, there is a gear, and the lifting chain 5 rotates on the surface of the gear, thereby driving the spiral sampling cylinder 6 to rise. The output shaft of the lifting drive assembly 7 is provided with the lifting chain 5. One end of the lifting chain 5 away from the lifting drive assembly 7 is rotatably connected to the inner wall of the bottom end of the main frame 1. The spiral sampling cylinder 6 is slidably connected to the inner wall of the main frame 1. The spiral sampling cylinder 6 is a prior art, with a material taking auger inside and a motor at the top, which can control the material taking auger to rotate, thereby rotating and extracting the sample of the material. The top of the outer wall of the spiral sampling cylinder 6 contacts the support beam 8. When the spiral sampling cylinder 6 rises following the lifting chain 5, it will drive the support beam 8 to rise synchronously. When the spiral sampling cylinder 6 descends, the support beam 8 will follow it down due to gravity.

[0025] Refer to Figures 1-2, a tension bar 9 is fixedly connected to the bottom end of the outer wall of the bearing beam 8, and a lifting protective cover 11 is fixedly connected to the bottom end of the outer wall of the tension bar 9. The overall shape of the lifting protective cover 11 is in the shape of a rectangle with an opening in the middle, which protects and shields the entire bottom end of the main frame 1. The lifting protective cover 11 is slidably connected to the outer wall of the main frame 1. A lifting cloth curtain 12 is fixedly connected to the outer wall of the top end of the spiral sampling tube 6. The lifting cloth curtain 12 is made of a flexible material. During the up and down movement of the spiral sampling tube 6, the entire lifting cloth curtain 12 will contract or expand. The bottom end of the outer wall of the lifting cloth curtain 12 is fixedly connected to the bottom end of the outer wall of the main frame 1. A pressure sensor 4 is fixedly connected to the outer wall of the left side of the spiral sampling tube 6. One end of the lifting chain 5 is fixedly connected to the top end of the outer wall of the left side of the spiral sampling tube 6, and the other end of the lifting chain 5 is fixedly connected to the bottom end of the outer wall of the pressure sensor 4. By setting the pressure sensor 4, after the spiral sampling tube 6 comes into contact with the bottom end of the carriage, it can transmit a set value signal, so that the spiral sampling tube 6 stops descending.

[0026] Refer to Figure 1 - and Figure 3 , a sampling tube heating belt 10 is arranged inside the inner wall of the spiral sampling tube 6. The sampling tube heating belt 10 is arranged inside the sandwich layer of the barrel wall of the spiral sampling tube 6, so as to avoid damage caused by the rotation of the feeding auger. A temporary storage hopper 2 is fixedly connected to the top end of the outer wall of the spiral sampling tube 6. By setting the temporary storage hopper 2, the materials taken out by the material taking auger inside the spiral sampling tube 6 can be temporarily placed, which is convenient for the staff to detect the materials. A hopper heating plate 3 is arranged on the outer wall of the temporary storage hopper 2. By setting the hopper heating plate 3 and the sampling tube heating belt 10, the anti-freezing effect of the coal sample channel of the sampling equipment is guaranteed, the winter applicability of the equipment is effectively improved, the equipment failure rate is reduced, and the equipment efficiency is improved.

[0027] Working principle: When taking samples of the materials in the carriage, when the spiral sampling tube 6 descends inside the main frame 1, the bearing beam 8 contacted by its top end will be driven by gravity to descend synchronously, and thus drive the lifting protective cover 11 to descend synchronously through the tension bar 9. At the same time, the lifting cloth curtain 12 can be folded or unfolded as the spiral sampling tube 6 rises and falls. The lifting protective cover 11, the main frame 1, and the lifting cloth curtain 12 together form a sampling space that is closed on all sides. The dust during the sampling process is effectively suppressed in the space, protecting the external environment.

[0028] Meanwhile, a hopper heating plate 3 is installed on the temporary storage hopper 2 of the spiral sampling cylinder 6, and a sampling cylinder heating belt 10 is installed in the inner sandwich layer of the spiral sampling cylinder 6. The heating functions of these two components ensure the anti-freezing effect of the coal sample channel of the sampling equipment, effectively improve the winter applicability of the equipment, reduce the equipment failure rate, improve the equipment efficiency. The material taken out by the spiral sampling cylinder 6 will be placed inside the temporary storage hopper 2, and a pressure sensor 4 is installed on the main body frame 1 through a lifting chain 5 and a lifting drive assembly 7. When the spiral sampling cylinder 6 touches the bottom of the vehicle, or the reinforcing ribs and the car body at the bottom of the carriage, the spiral sampling cylinder 6 can no longer descend smoothly, the pressure of the equipment drive mechanism rises, the pressure sensor 4 gives a set value signal, the spiral sampling cylinder 6 stops descending, and the sampling point is changed to continue working, effectively preventing sampling accidents, protecting the vehicle and the equipment, and improving the equipment safety and service life.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel electric spiral sampling head, comprising a main frame (1), characterized in that: A lifting drive assembly (7) is arranged at the top of the outer wall of the main frame (1), and a lifting chain (5) is arranged on the output shaft of the lifting drive assembly (7). A spiral sampling barrel (6) is slidably connected to the inner wall of the main frame (1), and the top of the outer wall of the spiral sampling barrel (6) contacts a support beam (8), and the bottom end of the outer wall of the support beam (8) is fixedly connected to a tie rod (9), and the bottom end of the outer wall of the tie rod (9) is fixedly connected to a lifting shield (11). The outer wall of the top of the spiral sampling barrel (6) is fixedly connected to a lifting curtain (12), and the outer wall of the left side of the spiral sampling barrel (6) is fixedly connected to a pressure sensor (4). The inner wall of the spiral sampling barrel (6) is provided with a sampling barrel heating belt (10), and the top of the outer wall of the spiral sampling barrel (6) is fixedly connected to a temporary storage hopper (2), and the outer wall of the temporary storage hopper (2) is provided with a hopper heating plate (3).

2. A novel electric spiral sampling head according to claim 1, characterized in that: One end of the lifting chain (5) away from the lifting drive assembly (7) is rotatably connected to the inner wall of the bottom end of the main frame (1).

3. The novel electric spiral sampling head according to claim 1 is characterized in that: The bottom end of the outer wall of the lifting curtain (12) is fixedly connected to the bottom end of the outer wall of the main frame (1).

4. The novel electric spiral sampling head according to claim 1 is characterized in that: One end of the lifting chain (5) is fixedly connected to the top end of the left outer wall of the spiral sampling cylinder (6), and the other end of the lifting chain (5) is fixedly connected to the bottom end of the outer wall of the pressure sensor (4).

5. The novel electric spiral sampling head according to claim 1 is characterized in that: The lifting shield (11) is slidably connected to the outer wall of the main frame (1).

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