Waste sample return device used for coal sampling equipment

Abstract

The present invention relates to a waste sample return device used in coal sampling equipment, belonging to the field of coal sampling, and includes a transport cabinet with a first transport roller installed therein and an extension cabinet with a second transport roller installed therein. The extension cabinet is slidably attached to the bottom of the transport cabinet. When the extension cabinet is not extended, the extension cabinet is located on the left side of the first discharge port of the transport cabinet. Further, a telescopic assembly fixedly attached to the upper end of the transport cabinet, on the right end side wall of the extension cabinet, connection plates are fixedly attached, and the upper ends of the two connection plates are extended so as to be fixedly connected to the telescopic assembly, and a rotation assembly, on the outer walls on both sides of the transport cabinet, fixing plates are fixedly connected, and the rotation assembly is fixedly connected by the fixing plates. The extension cabinet passes through the inside of the rotation assembly, and the transport cabinet and the extension cabinet are adjusted in direction by the rotation assembly. It has the advantages of simple structure, two operating modes, and a large transport volume.

Description

Technical Field

[0001] The present invention relates to a waste sample return device used in coal sampling equipment and belongs to the field of coal sampling.

Background Art

[0002] In the coal sampling equipment, during the sampling process, the collected samples need to be reduced in size to a certain extent. After the reduction, the required samples are put into the sample concentration device, and the surplus samples need to be discarded. With the development of technology, the methods of "centralized collection" and "random scattering" have been gradually abandoned. In many cases, the waste samples are returned to the coal transport vehicle by a transfer device.

[0003] For example, the patent with the Chinese Patent Publication No. CN103029969B provides a waste sample return device for coal sampling equipment, which includes a fixed rotating holder, a rotating support base, a rotating push cylinder, a first-stage spiral sample waste mechanism, and a second-stage spiral sample waste mechanism. The first-stage spiral sample waste mechanism is hinged to the rotating support base and the rotating push cylinder, and rotates around the rotating support base under the action of the rotating push cylinder. The second-stage spiral sample waste mechanism is slidably connected to the first-stage spiral sample waste mechanism and rotates together with the first-stage spiral sample waste mechanism. The entire waste sample return device described in the present invention occupies a small space in terms of structure, and its height, length, and width are not too large. Also, when each stage of the spiral sample waste mechanism is unfolded, the sample waste distance becomes longer, and the waste samples in the collected coal samples can be easily returned.

[0004] In the above waste sample return device, by installing the first-stage spiral sample waste mechanism and the second-stage spiral sample waste mechanism, the length of the waste sample return device is effectively increased, and the waste sample in the collected coal sample can be easily returned. However, in actual applications, it has still been found that there are still some deficiencies to a certain extent. For example, the above waste sample return device only has a "work extension" mode. For a coal transport vehicle parked nearby, if the return distance is too long, the waste sample will instead be transported outside the vehicle. In addition, the two transport rollers of the above waste sample return device each adopt two sets of drive systems, which not only have a complex structure but also a high cost.

Summary of the Invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a waste sample return device used in coal sampling equipment, which has the advantages of simple structure, two operating modes, and a large conveying capacity.

[0006] The technical solution of the present invention is as follows.

[0007] A conveying cabinet with a first conveying roller installed therein and an extension cabinet with a second conveying roller installed therein, wherein the extension cabinet is slidably attached to the bottom of the conveying cabinet, an input pipe communicates with the left side of the top of the conveying cabinet, a first discharge port is opened on the right side of the bottom of the conveying cabinet, the extension cabinet has a communication port opened on the left side of the top that coincides with the first discharge port, and a second discharge port is opened on the right side of the bottom. An L-shaped pipe communicates with the left end side wall of the extension cabinet. When the extension cabinet is not extended, the extension cabinet is located on the left side of the first discharge port of the conveying cabinet. Further, it is a telescopic assembly fixedly attached to the upper end of the conveying cabinet. On the right end side wall of the extension cabinet, connection plates are fixedly attached. The upper ends of the two connection plates are extended so as to be fixedly connected to the telescopic assembly. The telescopic assembly is fixedly connected to the telescopic assembly, and a rotating assembly. On the outer walls on both sides of the conveying cabinet, fixing plates are fixedly connected, and the rotating assembly is fixedly connected by the fixing plates. The extension cabinet passes through the inside of the rotating assembly, and the conveying cabinet and the extension cabinet are rotated by the rotating assembly to adjust the direction. It is a waste sample return device used in a coal sampling facility including the rotating assembly.

[0008] Here, the telescopic assembly includes a telescopic arm and a push block. The fixed end of the telescopic arm is fixedly attached to the top of the conveying cabinet. The output end of the telescopic arm is fixedly connected to the push block. The lower surface of the push block is fixedly connected to the connection plate.

[0009] Here, the rotating assembly includes a U-shaped plate, a rotating shaft, and a bottom plate. The upper sides of the two vertical ends of the U-shaped plate are fixedly connected to the fixing plates on both sides of the conveying cabinet respectively. The bottom end of the U-shaped plate is rotatably installed on the bottom plate by the rotating shaft.

[0010] Here, a driving gear is attached to the outer wall of the rotating shaft.

[0011] Here, an inner shaft is provided inside the second conveying roller. The left end of the inner shaft extends outside the extension cabinet and is rotatably connected to the mounting plate. A drive motor is fixedly connected to the left side of the mounting plate. The left end of the first conveying roller extends through the conveying cabinet and the mounting plate in sequence and is then fixedly connected to the output end of the drive motor.

[0012] Here, a first gear is fixedly attached to the inner shaft, a second gear is fixedly attached to the second conveying roller, and the first gear and the second gear mesh with each other.

[0013] Here, splines are uniformly provided on the outer wall of the inner shaft, and spline grooves that fit with the splines are uniformly opened on the inner wall of the second conveying roller.

[0014] Here, rails are installed on both the long side of the upper surface of the extension cabinet and the long side of the lower surface of the conveying cabinet.

[0015] Here, L-shaped slide plates are fixedly attached to both the front and rear sides of the top of the left end of the extension cabinet. The end of the horizontal part of the L-shaped slide plate is fixed to the extension cabinet, and a pulley located on the rail of the extension cabinet is connected to the vertical part. The pulley also fits with the rail on the conveying cabinet.

Advantages of the Invention

[0016] 1. In the waste sample return device used in the coal sampling equipment of the present invention, when the extension cabinet is in the retracted state, waste samples can be input by the input pipe and the L-shaped pipe. The input waste samples are discharged through the first discharge port and the second discharge port respectively and fall into the coal transport vehicle, making the coal transport vehicle suitable for use in the working situation close to the coal sampling equipment. Also, the waste sample conveying volume is larger, significantly improving the waste sample recovery efficiency.

[0017] 2. In the waste sample return device used in the coal sampling equipment of the present invention, when the extension cabinet is in the extended state, the waste sample is input through the input pipe. The input waste sample is conveyed by the first conveying roller, then enters the extension cabinet through the first discharge port and the communication port, and is further conveyed by the second conveying roller, and finally discharged from the second discharge port, so that it is suitable for use in the working situation where the coal transport vehicle is far from the coal sampling equipment.

[0018] 3. In the waste sample return device used in the coal sampling equipment of the present invention, L-shaped slide plates are installed on both the front and rear sides of the top of the left end of the extension cabinet. The pulleys on the L-shaped slide plates are located on the rails of the conveying cabinet and the extension cabinet. By slidably installing the pulleys on the conveying cabinet, the left and right movement of the extension cabinet can be made more stable, and the force can be received more evenly and balanced.

[0019] 4. In the waste sample return device used in the coal sampling equipment of the present invention, a rotation assembly is installed, and by rotating the U-shaped plate, the whole waste sample return device is driven to rotate so as to adjust the direction of the waste sample return device.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying out the Invention

[0021] Hereinafter, the present invention will be described in detail with reference to the drawings and specific examples.

[0022] As shown in FIGS. 1 to 5, it includes a transport cabinet 1 provided with a first transport roller 4 and an extension cabinet 5 provided with a second transport roller 6. The extension cabinet 5 is slidably attached to the bottom of the transport cabinet 1. An input pipe 2 communicates with the left side of the top of the transport cabinet 1, and a first discharge port 3 is opened on the right side of the bottom of the transport cabinet 1. The extension cabinet 5 has a communication port 8 that coincides with the first discharge port 3 on the left side of the top, and a second discharge port 9 is opened on the right side of the bottom. An L-shaped pipe 7 communicates with the left end side wall of the extension cabinet 5. When the extension cabinet 5 does not extend, the extension cabinet 5 is located on the left side of the first discharge port 3 of the transport cabinet 1. Furthermore, it is a telescopic assembly fixedly attached to the upper end of the transport cabinet 1. Connection plates 12 are fixedly attached to the right end side walls of the extension cabinet 5. The upper ends of the two connection plates 12 extend so as to be fixedly connected to the telescopic assembly, and the telescopic assembly, and a rotation assembly. On the outer walls on both sides of the transport cabinet 1, fixing plates 20 are fixedly connected, and the rotation assembly is fixedly connected by the fixing plates 20. The extension cabinet 5 passes through the inside of the rotation assembly, and the transport cabinet 1 and the extension cabinet 5 are adjusted in direction by the rotation assembly. It is a waste sample return device used in coal sampling equipment.

[0023] Specifically, when the extension cabinet 5 is in the retracted state, the input pipe 2 and the L-shaped pipe 7 can both be used to input waste samples. The input waste samples are discharged through the first discharge port 3 and the second discharge port 9 respectively, and fall into the coal transport vehicle. This makes the coal transport vehicle suitable for use in a working situation close to the coal sampling facility. Also, the amount of waste sample transported is larger, and the rotation efficiency of the waste sample is improved.

[0024] When the extension cabinet 5 is in the extended state, the communication port 8 on the extension cabinet 5 corresponds to the first discharge port 3. The waste sample is input through the input pipe 2. The input waste sample is transported by the first transport roller 4, then enters the extension cabinet 5 through the first discharge port 3 and the communication port 8, and is further transported by the second transport roller 6, and finally discharged from the second discharge port 9. This makes the coal transport vehicle suitable for use in a working situation far from the coal sampling facility.

[0025] The extension cabinet 5 is slidably installed at the bottom of the transport cabinet 1, so that its drive is realized by the telescopic assembly. The telescopic assembly is connected to the extension cabinet 5 by the connection plate 12. When the telescopic assembly is operating, the extension cabinet 5 is driven to slide at the bottom of the transport cabinet 1, and the rotation assembly can drive the entire waste sample return device to rotate. This makes it easy to adjust the orientation of the waste sample return device.

[0026] As shown in FIG. 1, the telescopic assembly includes a telescopic arm 10 and a push block 11. The fixed end of the telescopic arm 10 is fixedly attached to the top of the transport cabinet 1. The output end of the telescopic arm 10 is fixedly connected to the push block 11. The lower surface of the push block 11 is fixedly connected to the connection plate 12.

[0027] Specifically, a multi-stage telescopic arm 10 is attached to the top of the transport cabinet 1. The output end of the telescopic arm 10 is fixedly connected to a push block 11, and the push block 11 is fixedly connected to a connection plate 12. When the telescopic arm 10 extends or retracts, the extension cabinet 5 is driven to move by the push block 11 and the connection plate 12, thereby adjusting the retracted or extended state of the extension cabinet 5.

[0028] As shown in FIG. 6, the rotation assembly includes a U-shaped plate 21, a rotating shaft 22, and a bottom plate 23. The upper sides of the two vertical ends of the U-shaped plate 21 are fixedly connected to the fixed plates 20 on both sides of the transport cabinet 1 respectively. The bottom end of the U-shaped plate 21 is rotatably installed on the bottom plate 23 by the rotating shaft 22, and a driving gear 24 is attached to the outer wall of the rotating shaft 22.

[0029] Specifically, the U-shaped plate 21 is fixedly connected to the outer wall of the transport cabinet 1 by the fixed plate 20. The U-shaped plate 21 is rotatably installed on the bottom plate 23 by the rotating shaft 22. The bottom plate 23 is fixedly attached to the chassis surface of the coal sampling equipment. A driving wheel is meshed with the outer wall of the driving gear 24. The driving wheel is fixedly attached to the output shaft of the adjustment motor. The adjustment motor operates to drive the driving wheel to rotate, and the driving wheel rotates to drive the driving gear 24 to rotate, thereby driving the rotating shaft 22 and the U-shaped plate 21 to rotate, and further driving the entire device to rotate, which facilitates adjusting the orientation of the waste sample return device.

[0030] As shown in FIGS. 3, 4, and 5, an inner shaft 18 is provided inside the second conveying roller 6. The left end of the inner shaft 18 extends outside the extension cabinet 5 and is rotatably connected to the mounting plate 15. A drive motor 14 is fixedly connected to the left side of the mounting plate 15. The left end of the first conveying roller 4 extends through the conveying cabinet 1 and the mounting plate 15 in sequence, and then is fixedly connected to the output end of the drive motor 14. A first gear 16 is fixedly attached to the inner shaft 18, and a second gear 17 is fixedly attached to the second conveying roller 6. The first gear 16 and the second gear 17 mesh with each other. Splines 19 are uniformly provided on the outer wall of the inner shaft 18, and spline grooves that fit with the splines 19 are uniformly formed on the inner wall of the second conveying roller 6.

[0031] Specifically, when the coal transport vehicle is in a working condition close to the coal sampling facility, the drive motor 14 is operated to drive the first gear 16 to rotate, thereby driving the first conveying roller 4 to rotate. Since the first gear 16 and the second gear 17 mesh with each other, the inner shaft 18 is also driven to rotate. Splines 19 and spline grooves that fit with each other are respectively provided on the outer wall of the inner shaft 18 and the inner wall of the second conveying roller 6. When the inner shaft 18 rotates, the second conveying roller 6 can be driven to rotate.

[0032] The first conveying roller 4 and the second conveying roller 6 can be driven by only one drive motor 14, which simplifies the control system and reduces the cost.

[0033] Since the inner shaft 18 and the second conveying roller 6 are fitted by the splines 19 and the spline grooves, the inner shaft 18 can move horizontally left and right (insert and remove) with respect to the second conveying roller 6, and at the same time, the inner shaft 18 can always drive the second conveying roller 6 to rotate.

[0034] As shown in Fig. 2, rails are installed on the long side of the upper surface of the extension cabinet 5 and the long side of the lower surface of the transport cabinet 1. On both the front and rear sides of the top at the left end of the extension cabinet 5, L-shaped slide plates 13 are fixedly attached. The end of the horizontal part of the L-shaped slide plate 13 is fixed to the extension cabinet 5, and a pulley located on the rail of the extension cabinet 5 is connected to the vertical part. The pulley also fits with the rail on the transport cabinet 1.

[0035] By slidably installing the L-shaped slide plate 13 between the transport cabinet 1 and the extension cabinet 5, the left and right movement of the extension cabinet 5 can be made more stable and it can receive force more evenly.

[0036] The operating principle of the present invention is as follows.

[0037] (1) When the coal transport vehicle is in a working situation close to the coal sampling facility, the extension cabinet 5 is in a retracted state. Through the input pipe 2 and the L-shaped pipe 7, waste samples can be input. The drive motor 14 is operated to drive the rotation of the first gear 16, and further drive the rotation of the first transport roller 4 to convey the waste sample to the first discharge port 3 for discharge. Since the first gear 16 and the second gear 17 are engaged, when the first gear 16 rotates, it can drive the rotation of the second gear 17 and drive the rotation of the inner shaft 18. The inner shaft 18 and the second transport roller 6 are fitted by the spline 19 and the spline groove. When the inner shaft 18 rotates, it can drive the rotation of the second transport roller 6 to convey the waste sample in the extension cabinet 5 to the second discharge port 9 for discharge.

[0038] (2) When the coal transport vehicle is in a working condition far from the coal sampling facility, when the telescopic device is activated, the telescopic arm 10 extends and drives to move the push block 11, and drives to extend the extension cabinet 5 by the connecting plate 12, so that the communication port 8 corresponds to the first discharge port 3. Thereby, the waste sample is input through the input pipe 2, and the input waste sample is conveyed to the first discharge port 3 by the first conveying roller 4, then put into the extension cabinet 5 through the communication port 8, and further conveyed to the second discharge port 9 by the second conveying roller 6 and discharged.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made based on the specification and drawings of the present invention, which is directly or indirectly applied to other related technical fields, is also included in the patent protection scope of the present invention.

Explanation of Reference Numerals

[0040] 1. Conveying cabinet; 2. Input pipe; 3. First discharge port; 4. First conveying roller; 5. Extension cabinet; 6. Second conveying roller; 7. L-shaped pipe; 8. Communication port; 9. Second discharge port; 10. Telescopic arm; 11. Push block; 12. Connecting plate; 13. Slide plate; 14. Driving motor; 15. Mounting plate; 16. First gear; 17. Second gear; 18. Inner shaft; 19. Spline; 20. Fixed plate; 21. U-shaped plate; 22. Rotating shaft; 23. Bottom plate; 24. Driving gear.

Claims

1. A waste sample return device for use in a coal sampling facility, comprising a transport cabinet (1) having a first transport roller (4) installed therein and an extension cabinet (5) having a second transport roller (6) installed therein, the extension cabinet (5) being slidably attached to the bottom of the transport cabinet (1), a top left side of the transport cabinet (1) being connected to an input pipe (2), a first discharge port (3) being opened on the right side of the bottom of the transport cabinet (1), the extension cabinet (5) having a communication port (8) that coincides with the first discharge port (3) opened on the left side of the top and a second discharge port (9) opened on the right side of the bottom, an L-shaped pipe (7) being connected to the left end side wall of the extension cabinet (5), and when the extension cabinet (5) is not extended, the extension cabinet (5) is located to the left of the first discharge port (3) of the transport cabinet (1), and further A telescopic assembly fixedly attached to the upper end of the conveying cabinet (1), wherein a connecting plate (12) is fixedly attached to each of the right end side walls of the extension cabinet (5), and the upper ends of the two connecting plates (12) are extended so as to be fixedly connected to the telescopic assembly; A waste sample return device for use in a coal sampling facility, comprising: a rotating assembly, the rotating assembly being fixedly connected to a fixed plate (20) on both outer walls of the transport cabinet (1), the fixed plate (20) fixedly connected to the rotating assembly, the extension cabinet (5) passing through the inside of the rotating assembly, and the transport cabinet (1) and the extension cabinet (5) adjusting their directions by the rotating assembly.

2. The waste sample return device for use in the coal sampling facility according to claim 1, characterized in that the telescopic assembly includes a telescopic arm (10) and a push block (11), the fixed end of the telescopic arm (10) is fixedly attached to the top of the transport cabinet (1), the output end of the telescopic arm (10) is fixedly connected to the push block (11), and the lower surface of the push block (11) is fixedly connected to a connection plate (12).

3. The waste sample return device used in the coal sampling equipment of claim 1, characterized in that the rotating assembly includes a U-shaped plate (21), a rotating shaft (22) and a bottom plate (23), the upper sides of the two vertical ends of the U-shaped plate (21) are fixedly connected to the fixed plates (20) on both sides of the transport cabinet (1), respectively, and the bottom end of the U-shaped plate (21) is rotatably mounted on the bottom plate (23) by the rotating shaft (22).

4. 4. The waste sample return device for use in a coal sampling facility according to claim 3, characterized in that a drive gear (24) is attached to the outer wall of the rotating shaft (22).

5. The waste sample return device for use in the coal sampling facility according to claim 1, characterized in that: an inner shaft (18) is installed in the second conveying roller (6), the left end of the inner shaft (18) extends outside the extension cabinet (5) and is rotatably connected to a mounting plate (15), a drive motor (14) is fixedly connected to the left side of the mounting plate (15), and the left end of the first conveying roller (4) extends to pass through the conveying cabinet (1) and the mounting plate (15) in order, and then is fixedly connected to the output end of the drive motor (14).

6. The waste sample return device for use in a coal sampling facility according to claim 5, characterized in that a first gear (16) is fixedly attached to the inner shaft (18), a second gear (17) is fixedly attached to the second conveying roller (6), and the first gear (16) and the second gear (17) mesh with each other.

7. The waste sample return device used in the coal sampling facility according to claim 6, characterized in that a spline (19) is uniformly provided on the outer wall of the inner shaft (18), and a spline groove that fits with the spline (19) is uniformly provided on the inner wall of the second conveying roller (6).

8. The waste sample return device used in the coal sampling equipment described in claim 1, characterized in that rails are installed on both the long side of the upper surface of the extension cabinet (5) and the long side of the lower surface of the transport cabinet (1).

9. The waste sample return device used in the coal sampling equipment according to claim 8, characterized in that: an L-shaped slide plate (13) is fixedly attached to both the front and rear sides of the top of the left end of the extension cabinet (5), the end of the horizontal part of the L-shaped slide plate (13) is fixed to the extension cabinet (5), and the vertical part is connected to a pulley located on the rail of the extension cabinet (5), and the pulley also fits into the rail on the transport cabinet (1).

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