Automatic sampling device for pretreatment before coal detection

Abstract

The invention belongs to the technical field of coal detection pretreatment equipment, and particularly relates to an automatic sample feeding device for pretreatment before coal detection, which comprises a main body frame, a first motor, a blanking hopper and a stirring rod, the first motor is arranged on the upper end face of the main body frame, the blanking hopper is arranged on the same side end face of the upper end of the main body frame, and the stirring rod is arranged on the inner side of the blanking hopper. By arranging the shaping roller, the limiting frame, the conveying transmission wheel, the conveying belt, the limiting shaft and the tail end supporting shaft, coal is poured into the discharging hopper, the stirring rod controlled by the first motor stirs the coal in the discharging hopper, blockage is prevented, and then the coal falls into the limiting frame; the coal pretreatment feeding efficiency is improved, meanwhile, the automation degree of the step is greatly improved, the steps of discharging, conveying, shaping and discharging are integrated, the coal pretreatment sampling process is faster, and the labor cost input is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of coal detection pretreatment equipment, in particular to an automatic sampling device for pretreatment of coal before detection. Background Art

[0002] Coal testing refers to the testing and analysis of various indicators of coal to determine whether its quality, calorific value, ash content, sulfur content and other indicators meet the standards, and provide data support for subsequent processing. The main contents of coal testing include basic parameters, content information and combustion performance information of coal, and pre-treatment sampling devices are often used before coal testing to keep the shape and position of coal fixed.

[0003] The prior art has the following deficiencies: the prior art "A coal automatic sampling device and coal detection system" with publication number CN118877434A "includes a support assembly, a conveying assembly and a pallet assembly are provided in the support assembly, the support assembly includes a support shell, a plurality of limit holes and a plurality of adjustment assemblies are provided on both sides of the support shell, the upper end surface of the support assembly is provided with a feeding port, a shaping position and a detection position in sequence along the feeding direction, the shaping position is provided with a shaping assembly, and the detection position is provided with a detection assembly; the pallet assembly includes a steel plate and a plurality of limit rods, the two ends of the limit rods are suitable for inserting into the limit holes and moving along the center line of the limit holes; the conveying assembly includes a driving wheel, a driven wheel and a transport belt, and the transport belt is in contact with the steel plate; the adjustment assembly includes a support frame, a nut and a screw, the screw can be against the two ends of the limit rod and can adjust the position of the limit rod."

[0004] The above structure completes the automatic sampling of coal by setting up a supporting component and a detection component. However, since the coal is relatively loose during sampling, the overall shape of the coal needs to be adjusted to achieve a shape suitable for sampling. The above structure does not make any improvements to this step. The traditional method of manually changing the sampling state is time-consuming and labor-intensive, and the degree of automation is low. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automated sampling device for pre-treatment of coal before testing, which solves the current problems of lack of shaping steps and low degree of automation of the overall operation due to the dispersion of multiple steps.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic sampling device for pretreatment of coal before testing, comprising a main frame, a first motor, the lower hopper and a stirring rod, wherein the first motor is arranged on the upper end face of the main frame, the lower hopper is arranged on the same side end face of the upper end of the main frame, and the stirring rod is arranged on the inner side of the lower hopper.

[0007] A shaping roller is arranged inside the main frame, a conveying drive wheel is also arranged inside the main frame, and a third motor is arranged on the side of the conveying drive wheel.

[0008] The shaping roller also includes a series connection shaft, a transmission chain and a second motor. The series connection shaft runs through the shaping roller and establishes a movable connection relationship with the shaping roller. The transmission chain is sleeved on the outer periphery of the series connection shaft. The second motor is movably connected to the series connection shaft.

[0009] In some of the embodiments, the shaping rollers except the second motor and the transmission chain are provided in two groups and are connected by the transmission chain.

[0010] In some embodiments, the main frame further includes a protective cover, a discharge bin and a limiting frame, the protective cover is welded to the upper end of the main frame, and the discharge bin is fixedly installed at the end of the main frame close to the conveying drive wheel.

[0011] In some of the embodiments, the limiting frame is fixedly mounted on the lower end of the lower hopper, and the stirring rod passes through the side wall of the lower hopper, and the other end is movably connected to the first motor.

[0012] In some embodiments, the conveying transmission wheel also includes a conveyor belt, a limiting shaft and an end support shaft. The conveyor belt is sleeved on the outer periphery of the conveying transmission wheel, the limiting shaft is movably connected to the inner side of the main frame, and the end support shaft is inserted at both ends of the inner side of the main frame.

[0013] In some of the embodiments, the conveyor belt is sleeved between the conveying drive wheel and the end support shaft, and an axial structure penetrating both ends is provided in the middle of the conveying drive wheel and is in active connection with the main frame.

[0014] In some embodiments, the limiting frame as a whole is a rectangular slot structure with a through middle portion.

[0015] Compared with the prior art, the present invention provides an automatic sampling device for pretreatment of coal before detection:

[0016] An automatic sampling device for pre-treatment of coal before testing is provided. By setting a shaping roller, a limit frame, a conveying transmission wheel, a conveyor belt, a limit shaft and a terminal support shaft, when the device is used, an operator controls a first motor, a second motor and a third motor through an external control unit, firstly pours the coal through a lower hopper, and a stirring rod controlled by the first motor stirs the coal inside the lower hopper to prevent blockage, and then the coal falls into the limit frame, at which time the third motor drives the conveying transmission wheel to rotate, and the conveyor belt is driven at the same time under the support of the terminal support shaft, and the coal moves forward, when the coal passes the position of the shaping roller, the second motor controls the series connection shaft to drive the shaping roller to rotate, and drives another group of shaping rollers to rotate synchronously through a transmission chain, the shaping roller shapes the conveyed coal into a fixed shape, and moves at a uniform speed under the conveyance of the conveyor belt until it reaches the discharge bin position and is discharged;

[0017] The above settings and processes can make the device have the following beneficial effects:

[0018] Through the coordination of shaping rollers, conveying drive wheels, conveyor belts and limit shafts, the coal can be operated in a fully automated mode from feeding to shaping to discharge from the equipment. While improving the feeding efficiency of coal pretreatment, the degree of automation of this step is also greatly improved. The feeding, conveying, shaping and discharging steps are integrated to make the coal pretreatment feeding process faster and reduce the investment in labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation position structure of the limit frame of the present invention;

[0021] Figure 3 This is a schematic diagram of the external frame structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the connection position structure of the shaping roller and the serial shaft of the present invention;

[0023] Figure 5 It is a schematic diagram of the overall structure of the conveyor belt of the present invention;

[0024] Figure 6 This is a schematic diagram of the overall structural details of the shaping roller of the present invention;

[0025] Figure 7 This is a schematic diagram of the bottom position structure of the storage bin of the present invention.

[0026] In the figure: 1. Main frame; 101. Protective cover; 102. Discharge bin; 103. Limit frame; 2. First motor; 3. Lower hopper; 4. Stirring rod; 5. Shaping roller; 501. Serial shaft; 502. Transmission chain; 503. Second motor; 6. Conveying drive wheel; 601. Conveyor belt; 602. Limit shaft; 603. End support shaft; 7. Third motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present embodiment: an automatic sampling device for pretreatment of coal before testing, including a main frame 1, a first motor 2, a lower hopper 3 and a stirring rod 4, the first motor 2 is arranged on the upper end face of the main frame 1, the lower hopper 3 is arranged on the same side end face of the upper end of the main frame 1, and the stirring rod 4 is arranged on the inner side of the lower hopper 3.

[0031] A shaping roller 5 is arranged inside the main frame 1 , a conveying drive wheel 6 is also arranged inside the main frame 1 , and a third motor 7 is arranged on the side of the conveying drive wheel 6 .

[0032] The shaping roller 5 also includes a series shaft 501, a transmission chain 502 and a second motor 503. The series shaft 501 passes through the shaping roller 5 and establishes a movable connection relationship therewith. The transmission chain 502 is sleeved on the outer periphery of the series shaft 501. The second motor 503 is movably connected to the series shaft 501.

[0033] In this embodiment, the shaping roller 5 excluding the second motor 503 and the transmission chain 502 is provided with two groups, and a connection is established through the transmission chain 502; the main frame 1 also includes a protective cover 101, a discharge bin 102 and a limiting frame 103, the protective cover 101 is welded to the upper end of the main frame 1, and the discharge bin 102 is fixedly installed at the end of the main frame 1 close to the conveying drive wheel 6.

[0034] Specifically, Figure 1 and Figure 3 as well as Figure 5 As shown, by connecting the shaping rollers 5 to each other through the transmission chain 502, the two groups of shaping rollers 5 can work synchronously, thereby improving the shaping efficiency.

[0035] In this embodiment, the limit frame 103 is fixedly installed at the lower end of the lower hopper 3, and the stirring rod 4 passes through the side wall of the lower hopper 3, and the other end is movably connected to the first motor 2; the conveying drive wheel 6 also includes a conveyor belt 601, a limit shaft 602 and an end support shaft 603, the conveyor belt 601 is sleeved on the outer periphery of the conveying drive wheel 6, the limit shaft 602 is movably connected to the inner side of the main frame 1, and the end support shaft 603 is inserted at both ends of the inner side of the main frame 1.

[0036] Specifically, Figure 2 , Figure 4 , Figure 6 as well as Figure 7 As shown, the third motor 7 drives the conveying driving wheel 6 to rotate, and the conveying driving wheel 6 transports the coal through the externally sleeved conveyor belt 601, and the limiting shaft 602 increases the friction between the conveyor belt 601 and the conveying driving wheel 6, thereby improving the smoothness of transportation.

[0037] In this embodiment, the conveyor belt 601 is sleeved between the conveying drive wheel 6 and the end support shaft 603, and an axis structure passing through both ends is provided in the middle of the conveying drive wheel 6, and establishes a movable connection relationship with the main frame 1; the limiting frame 103 is a rectangular trough structure with a through middle.

[0038] The working principle and use process of the present invention are as follows: when the equipment is in use, the operator controls the first motor 2, the second motor 503 and the third motor 7 through the external control unit, firstly pours the coal through the lower hopper 3, and the stirring rod 4 controlled by the first motor 2 stirs the coal inside the lower hopper 3 to prevent blockage, and then the coal falls into the limit frame 103. At this time, the third motor 7 drives the conveying transmission wheel 6 to rotate, and the conveyor belt 601 is driven at the same time under the support of the end support shaft 603, and the coal moves forward. When the coal passes the position of the shaping roller 5, the second motor 503 controls the serial shaft 501 to drive the shaping roller 5 to rotate, and drives another group of shaping rollers 5 to rotate synchronously through the transmission chain 502. The shaping roller 5 shapes the conveyed coal into a fixed shape, and moves at a constant speed under the conveyance of the conveyor belt 601 until it reaches the position of the discharge bin 102 and is discharged.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic sampling device for pre-treatment of coal before detection, comprising a main frame (1), a first motor (2), a lower hopper (3) and a stirring rod (4), wherein the first motor (2) is arranged on the upper end surface of the main frame (1), the lower hopper (3) is arranged on the same side end surface of the upper end of the main frame (1), and the stirring rod (4) is arranged on the inner side of the lower hopper (3), characterized in that: A shaping roller (5) is arranged inside the main frame (1), a conveying drive wheel (6) is also arranged inside the main frame (1), and a third motor (7) is arranged on the side of the conveying drive wheel (6); The shaping roller (5) further comprises a serial shaft (501), a transmission chain (502) and a second motor (503); the serial shaft (501) passes through the interior of the shaping roller (5) and establishes a movable connection therewith; the transmission chain (502) is sleeved on the outer periphery of the serial shaft (501); and the second motor (503) is movably connected to the serial shaft (501).

2. The automatic sampling device for pre-treatment of coal before detection according to claim 1 is characterized by: The shaping rollers (5) except for the second motor (503) and the transmission chain (502) are provided in two groups, and are connected via the transmission chain (502).

3. The automatic sampling device for coal pretreatment before detection according to claim 1 is characterized by: The main frame (1) further comprises a protective cover plate (101), a discharge bin (102) and a limit frame (103); the protective cover plate (101) is welded to the upper end of the main frame (1); and the discharge bin (102) is fixedly mounted at the end of the main frame (1) close to the conveying drive wheel (6).

4. The automatic sampling device for pre-treatment of coal before detection according to claim 3 is characterized by: The limiting frame (103) is fixedly mounted on the lower end of the lower hopper (3), and the stirring rod (4) passes through the side wall of the lower hopper (3), while the other end is movably connected to the first motor (2).

5. The automatic sampling device for coal pretreatment before detection according to claim 1 is characterized in that: The conveying drive wheel (6) further comprises a conveying belt (601), a limiting shaft (602) and an end support shaft (603); the conveying belt (601) is sleeved on the outer periphery of the conveying drive wheel (6); the limiting shaft (602) is movably connected to the inner side of the main frame (1); and the end support shaft (603) is plugged into the two ends of the inner side of the main frame (1).

6. The automatic sampling device for coal pretreatment before detection according to claim 5 is characterized by: The conveyor belt (601) is sleeved between the conveying drive wheel (6) and the terminal support shaft (603), and an axial structure penetrating both ends is provided in the middle of the conveying drive wheel (6) and is in active connection with the main frame (1).

7. The automatic sampling device for coal pretreatment before detection according to claim 3 is characterized by: The limiting frame (103) is a rectangular slot structure with a through middle.

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