A discarded material return device for coal sampling machine

Abstract

The present invention relates to a discarded material return device for a coal sampling machine, which belongs to the field of coal sampling; it comprises a conveying cabinet with a first conveying roller arranged inside and an extension cabinet with a second conveying roller arranged inside, the extension cabinet being slidably mounted on the bottom of the conveying cabinet, and 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; it also comprises: a telescopic component, the telescopic component is fixedly mounted on the upper end of the conveying cabinet, and a connecting plate is fixedly mounted on the right side wall of the extension cabinet, and the upper ends of the two connecting plates are extended to be fixedly connected to the telescopic component; a rotating component, the outer walls on both sides of the conveying cabinet are fixedly connected to fixed plates, and the rotating component is fixedly connected to the rotating component through the fixed plates, the extension cabinet passes through the middle of the rotating component, and the conveying cabinet and the extension cabinet adjust their directions through the rotating component; it has the advantages of simple structure, two working modes, and large conveying capacity.

Description

Technical Field

[0001] The invention relates to a discarded material returning device for a coal sampling machine, belonging to the field of coal sampling. Background Art

[0002] During the sampling process, the coal sampling machine must reduce the sample to a certain extent. After the reduction, the required sample is placed in the sample collection device, and the excess sample is discarded. With the development of technology, we have gradually abandoned the "centralized collection" and "random throwing" methods. In most cases, the waste material is returned to the coal truck using a transfer device.

[0003] For example, the invention patent with Chinese patent announcement number: CN103029969B provides a waste material return device for a coal sampling machine, including a fixed rotating support, a rotating support seat, a rotating push-pull cylinder, a first-stage spiral waste material mechanism and a second-stage spiral waste material mechanism. The first-stage spiral waste material mechanism is hinged on the rotating support seat and the rotating push-pull cylinder, and rotates around the rotating support seat under the action of the rotating push-pull cylinder. The second-stage spiral waste material mechanism is slidably connected to the first-stage spiral waste material mechanism and rotates together with the first-stage spiral waste material mechanism. The overall structure of the waste material return device described in the present invention occupies a small space and is not too high, too long, or too wide. At the same time, the spiral waste material mechanisms at all levels are stretched out to have a long waste material distance, which can very conveniently realize the waste material return of collected coal samples.

[0004] In the above-mentioned waste material return device, the arrangement of the first-stage spiral waste material mechanism and the second-stage spiral waste material mechanism effectively extends the length of the waste material return device, and can very conveniently realize the waste material return for collecting coal samples. However, in actual application, we found that it still has certain shortcomings, such as: the above-mentioned waste material return device has only one "extended working" mode. For coal trucks parked relatively close, an excessively long return distance will cause the waste material to be transported outside the vehicle; in addition, the two conveying rollers of the above-mentioned waste material return device respectively use two sets of drive systems, which is not only complex in structure but also high in cost. Summary of the Invention

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

[0006] The technical solutions of the present invention are as follows:

[0007] The conveyor belt conveyor is provided with a first conveying roller and a second conveying roller, and the conveyor belt conveyor is provided with a first discharge port and a second discharge port, respectively. The conveyor belt conveyor is provided with a first feed pipe and a second feed pipe, respectively. The conveyor belt conveyor is provided with a first feed pipe and a second feed pipe, respectively. The conveyor belt conveyor is provided with a first feed pipe and a second feed pipe, respectively. The conveyor belt conveyor is provided with a first feed pipe and a second feed pipe, respectively. The conveyor belt conveyor is provided with a first feed pipe and a second feed pipe, respectively.

[0008] Among them, the telescopic assembly includes a telescopic arm and a push block, the fixed end of the telescopic arm is fixedly installed on the top of the conveying cabinet, and 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 connecting plate.

[0009] Among them, 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 fixed plates on both sides of the conveying cabinet, and the bottom end of the U-shaped plate is rotatably set on the bottom plate through the rotating shaft.

[0010] Wherein, a driving gear is installed on the outer wall of the rotating shaft.

[0011] Among them, an inner shaft is provided inside the second conveying roller, the left end of the inner shaft extends to the outside of 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, and the left end of the first conveying roller extends through the conveying cabinet and the mounting plate in sequence and is fixedly connected to the output end of the drive motor.

[0012] Wherein, a first gear is fixedly mounted on the inner shaft, a second gear is fixedly mounted on the second conveying roller, and the first gear and the second gear are meshed with each other.

[0013] The outer wall of the inner shaft is evenly provided with splines, and the inner wall of the second conveying roller is evenly provided with flower grooves matching the splines.

[0014] Wherein, rails are provided on the long sides of the upper surface of the extension cabinet and the long sides of the lower surface of the conveying cabinet.

[0015] Among them, L-shaped slides are fixedly installed on the front and back sides of the left top of the extension cabinet. The horizontal end of the L-shaped slide is fixed to the extension cabinet, and the vertical section is connected to a pulley located on the extension cabinet track, and the pulley also cooperates with the track on the conveying cabinet.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention provides a waste material return device for a coal sampling machine. When the extension cabinet is in a retracted state, waste materials can be put in through the feed pipe and the L-shaped pipe. The put-in waste materials are discharged through the first discharge port and the second discharge port respectively and fall into the coal truck. The device is suitable for working conditions where the coal truck is close to the coal sampling machine. At the same time, the waste material transportation volume is also larger, which significantly improves the waste material recovery efficiency.

[0018] 2. The present invention provides a waste material return device for a coal sampling machine. When the extension cabinet is in an extended state, waste materials are input through a feed pipe. The input waste materials are first transported by a first conveyor roller, then enter the extension cabinet through a first discharge port and a connecting port, and then are transported by a second conveyor roller, and finally discharged from the second discharge port. The device is suitable for working conditions where the coal truck is far away from the coal sampling machine.

[0019] 3. The present invention provides a waste material return device for a coal sampling machine, which is provided with an L-shaped slide plate on the front and rear sides of the left end of the extension cabinet. The pulley on the L-shaped slide plate is located on the track of the conveying cabinet and the extension cabinet. The sliding setting of the pulley on the conveying cabinet can make the left and right movement of the extension cabinet smoother and the force more balanced.

[0020] 4. The present invention provides a waste material return device for a coal sampling machine. By setting a rotating assembly, the entire waste material return device is driven to rotate by rotating a U-shaped plate to adjust the direction of the waste material return device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a discarded material return device for a coal sampling machine according to the present invention;

[0022] Figure 2 This is a structural schematic diagram of a conveying cabinet in a waste material return device for a coal sampling machine according to the present invention;

[0023] Figure 3 This is a cross-sectional view of a conveying cabinet in a waste material return device for a coal sampling machine according to the present invention;

[0024] Figure 4 This is a structural schematic diagram of an installation plate in a waste material return device for a coal sampling machine according to the present invention;

[0025] Figure 5 This is a schematic structural diagram of an extended cabinet of a waste material return device for a coal sampling machine according to the present invention after extension;

[0026] Figure 6 The present invention is a structural schematic diagram of a U-shaped plate in a waste material return device for a coal sampling machine.

[0027] The reference numerals in the figures are as follows:

[0028] 1. Conveyor cabinet; 2. Feed pipe; 3. First discharge port; 4. First conveyor roller; 5. Extension cabinet; 6. Second conveyor roller; 7. L-shaped pipe; 8. Connecting port; 9. Second discharge port; 10. Telescopic arm; 11. Push block; 12. Connecting plate; 13. Slide plate; 14. Drive 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. Drive gear. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-5 The lifting mechanism that lifts up and down is that lifting gear 3 is lifted up and down, and the ...

[0031] Specifically, when the extension cabinet 5 is in the retracted state, waste materials can be put in through the feed pipe 2 and the L-shaped tube 7. The put-in waste materials pass through the first discharge port 3 and the second discharge port 9 respectively and fall into the coal truck. This is suitable for working conditions where the coal truck is close to the coal sampling machine. At the same time, the waste material transportation volume is also larger, and the waste material rotation efficiency is also improved.

[0032] When the extension cabinet 5 is in the extended state, the connecting port 8 on the extension cabinet 5 corresponds to the first discharge port 3, and the waste material is put into the extension cabinet 5 through the feeding pipe 2. The put-in waste material is first transported by the first conveying roller 4, and then enters the extension cabinet 5 through the first discharge port 3 and the connecting port 8, and is then transported by the second conveying roller 6, and finally discharged from the second discharge port 9. It is suitable for working conditions where the coal truck is far away from the coal sampling machine.

[0033] The extension cabinet 5 is slidably arranged at the bottom of the conveying cabinet 1, and its drive is achieved by a telescopic component. The telescopic component is connected to the extension cabinet 5 through a connecting plate 12. When the telescopic component is working, it will drive the extension cabinet 5 to slide at the bottom of the conveying cabinet 1; the entire waste material return device can be driven to rotate through the rotating component to facilitate the adjustment of the direction of the waste material return device.

[0034] like Figure 1 As shown, the telescopic assembly includes a telescopic arm 10 and a push block 11. The fixed end of the telescopic arm 10 is fixedly installed on the top of the conveying cabinet 1, and 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 connecting plate 12.

[0035] Specifically, a multi-stage telescopic arm 10 is installed on the top of the conveying cabinet 1, and the output end of the telescopic arm 10 is fixedly connected to the push block 11, and the push block 11 is fixedly connected to the connecting plate 12. When the telescopic arm 10 is extended or retracted, the extension cabinet 5 is driven to move through the push block 11 and the connecting plate 12, thereby adjusting the retraction or extension state of the extension cabinet 5.

[0036] like Figure 6 As shown, the rotating assembly includes a U-shaped plate 21, a rotating shaft 22 and a base 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 conveying cabinet 1, and the bottom end of the U-shaped plate 21 is rotatably set on the base plate 23 through the rotating shaft 22; a driving gear 24 is installed on the outer wall of the rotating shaft 22.

[0037] Specifically, the outer wall of the conveying cabinet 1 is fixedly connected to the U-shaped plate 21 through the fixed plate 20, and the U-shaped plate 21 is rotatably set on the bottom plate 23 through the rotating shaft 22. The bottom plate 23 is fixedly installed on the frame plane of the coal mining and sampling machine. The outer wall of the driving gear 24 is engaged with a driving wheel, and the driving wheel is fixedly installed on the output shaft of the adjusting motor; the operation of the adjusting motor drives the driving wheel to rotate, and the rotation of the driving wheel drives the driving gear 24 to rotate, thereby driving the rotating shaft 22 and the U-shaped plate 21 to rotate, and then driving the entire device to rotate, so as to facilitate the adjustment of the direction of the waste material return device.

[0038] like Figure 3 、 4 As shown in Figures 5 and 6, an inner shaft 18 is provided inside the second conveyor roller 6, and the left end of the inner shaft 18 extends to the outside of the extension cabinet 5 and is rotatably connected to the mounting plate 15; the left side of the mounting plate 15 is fixedly connected to the drive motor 14, and the left end of the first conveyor roller 4 extends through the conveyor cabinet 1 and the mounting plate 15 in sequence and is fixedly connected to the output end of the drive motor 14; a first gear 16 is fixedly mounted on the inner shaft 18, and a second gear 17 is fixedly mounted on the second conveyor roller 6, and the first gear 16 and the second gear 17 are engaged with each other; splines 19 are evenly provided on the outer wall of the inner shaft 18, and flower grooves matching the splines 19 are evenly opened on the inner wall of the second conveyor roller 6.

[0039] Specifically, when the coal truck is close to the coal sampling machine, the drive motor 14 is turned on to drive the first gear 16 to rotate, thereby driving the first conveyor roller 4 to rotate. Since the first gear 16 is engaged with the second gear 17, the inner shaft 18 is also driven to rotate. The outer wall of the inner shaft 18 and the inner wall of the second conveyor roller 6 are respectively provided with splines 19 and flower grooves that cooperate with each other. The rotation of the inner shaft 18 can drive the second conveyor roller 6 to rotate.

[0040] The first conveying roller 4 and the second conveying roller 6 can be driven by a driving motor 14, so the control system is simpler and the cost is lower.

[0041] Since the inner shaft 18 and the second conveyor roller 6 cooperate with each other through the spline 19 and the flower groove, the inner shaft 18 can translate (insert and withdraw) left and right relative to the second conveyor roller 6, and at the same time, the inner shaft 18 can always drive the second conveyor roller 6 to rotate.

[0042] like Figure 2 As shown, tracks are provided on the long sides of the upper surface of the extension cabinet 5 and the long sides of the lower surface of the conveying cabinet 1; L-shaped slides 13 are fixedly installed on the front and back sides of the left top of the extension cabinet 5, and the horizontal section end of the L-shaped slide 13 is fixed to the extension cabinet 5, and the vertical section is connected to a pulley located on the track of the extension cabinet 5, and the pulley also cooperates with the track on the conveying cabinet 1.

[0043] By sliding the L-shaped slide plate 13 on the conveying cabinet 1 and the extension cabinet 5 , the left and right movement of the extension cabinet 5 can be made smoother and the force applied can be more balanced.

[0044] Working principle of the present invention:

[0045] (1) When the coal truck is close to the coal sampling machine, the extension cabinet 5 is in a retracted state, and the feed pipe 2 and the L-shaped pipe 7 can both be used to put in the waste material. The drive motor 14 is turned on to drive the first gear 16 to rotate, thereby driving the first conveying roller 4 to rotate, and the waste material is transported to the first discharge port 3 for discharge; since the first gear 16 and the second gear 17 are engaged, the rotation of the first gear 16 will drive the rotation of the second gear 17, thereby driving the rotation of the inner shaft 18. The inner shaft 18 and the second conveying roller 6 are matched through the spline 19 and the flower groove. When the inner shaft 18 rotates, it will drive the second conveying roller 6 to rotate, and the waste material in the extension cabinet 5 will be transported to the second discharge port 9 for discharge.

[0046] (2) When the coal truck is far away from the coal sampling machine, the telescopic device is started, the telescopic arm 10 is extended to drive the push block 11 to move, and the extension cabinet 5 is extended through the connecting plate 12, so that the connecting port 8 corresponds to the first discharge port 3; the waste material is put into the feed pipe 2, and the put-in waste material is first transported to the first discharge port 3 by the first conveying roller 4, enters the extension cabinet 5 through the connecting port 8, and is then transported to the second discharge port 9 by the second conveying roller 6 for discharge.

[0047] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A waste material return device for a coal sampling machine, comprising a conveying cabinet (1) with a first conveying roller (4) provided therein and an extension cabinet (5) with a second conveying roller (6) provided therein, wherein the extension cabinet (5) is slidably mounted on the bottom of the conveying cabinet (1), a feed pipe (2) is connected to the left side of the top of the conveying cabinet (1), and a first discharge port (3) is provided on the right side of the bottom of the conveying cabinet (1); a connecting port (8) matching the first discharge port (3) is provided on the left side of the top of the extension cabinet (5), and a second discharge port (9) is provided on the right side of the bottom; the characteristics are: The left end side wall of the extension cabinet (5) is connected to an L-shaped pipe (7), and when the extension cabinet (5) is not extended, the extension cabinet (5) is located on the left side of the first discharge port (3) of the conveying cabinet (1); and further comprising: A telescopic assembly, wherein the telescopic assembly is fixedly mounted on the upper end of the conveying cabinet (1), and a connecting plate (12) is fixedly mounted on the right side wall of the extension cabinet (5), and the upper ends of the two connecting plates (12) are extended to be fixedly connected to the telescopic assembly; The outer walls of both sides of the conveying cabinet (1) are fixedly connected with fixed plates (20), and the rotating assembly is fixedly connected through the fixed plates (20); the extension cabinet (5) passes through the middle of the rotating assembly; the conveying cabinet (1) and the extension cabinet (5) adjust their directions through the rotating assembly.

2. A waste material return device for a coal sampling machine according to claim 1, characterized in that: The telescopic assembly comprises a telescopic arm (10) and a push block (11); the fixed end of the telescopic arm (10) is fixedly mounted on the top of the conveying 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 the connecting plate (12).

3. The waste material return device for a coal sampling machine according to claim 1, characterized in that: The rotating assembly comprises 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 respectively fixedly connected to the fixed plates (20) on both sides of the conveying cabinet (1). The bottom end of the U-shaped plate (21) is rotatably arranged on the bottom plate (23) via the rotating shaft (22).

4. A waste material return device for a coal sampling machine according to claim 3, characterized in that: A driving gear (24) is mounted on the outer wall of the rotating shaft (22).

5. The waste material return device for a coal sampling machine according to claim 1, characterized in that: An inner shaft (18) is provided inside the second conveying roller (6), the left end of the inner shaft (18) extends to the outside of 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), and the left end of the first conveying roller (4) extends through the conveying cabinet (1) and the mounting plate (15) in sequence and is fixedly connected to the output end of the drive motor (14).

6. A waste material return device for a coal sampling machine according to claim 5, characterized in that: A first gear (16) is fixedly mounted on the inner shaft (18), and a second gear (17) is fixedly mounted on the second conveying roller (6); the first gear (16) and the second gear (17) are meshed with each other.

7. A waste material return device for a coal sampling machine according to claim 6, characterized in that: The outer wall of the inner shaft (18) is evenly provided with splines (19), and the inner wall of the second conveying roller (6) is evenly provided with flower grooves matching the splines (19).

8. The waste material return device for a coal sampling machine according to claim 1, characterized in that: Tracks are provided on the long sides of the upper surface of the extension cabinet (5) and the long sides of the lower surface of the conveying cabinet (1).

9. A waste material return device for a coal sampling machine according to claim 8, characterized in that: An L-shaped slide plate (13) is fixedly installed on both the front and rear sides of the left top of the extension cabinet (5), and the horizontal end of the L-shaped slide plate (13) is fixed to the extension cabinet (5). The vertical section of the L-shaped slide plate (13) is connected to a pulley located on the track of the extension cabinet (5), and the pulley also cooperates with the track on the conveying cabinet (1).

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