Closed damping self-moving coal slipping device and coal conveying system

Abstract

The invention provides a closed damping self-moving coal slipping device and a coal conveying system, and belongs to the field of coal production.The closed damping self-moving coal slipping device comprises a belt conveyor, a second conveyor of a heading machine is arranged above the belt conveyor, and the closed damping self-moving coal slipping device is arranged between the head of the second conveyor of the heading machine and a self-moving tail slideway of the belt conveyor; the closed damping self-moving coal slipping device comprises a fixing support, trundles are arranged at the lower end of the fixing support, conveyor connecting pieces are arranged on the side faces of the fixing support, a material receiving chute is fixedly installed at the upper end of the fixing support, a coal baffle is hinged to the lower end of each side face of the material receiving chute, and a damping spring is arranged on the outer surface of each coal baffle. The ends, away from the spillplates, of the damping springs are connected with the fixing supports. The coal flow guiding device has the beneficial effects that the coal flow conveyed by the heading machine can be restrained and guided to the belt conveyor all the time, and therefore the coal and gangue scattering condition is avoided.

Description

Technical Field

[0001] The invention belongs to the field of coal production, and in particular relates to a closed shock-absorbing self-moving coal chute device and a coal conveying system. Background Art

[0002] In coal mining operations, the second conveyor of the roadheader serves as a transfer device between the roadheader and the belt conveyor. Its head is placed on the tail slide of the belt conveyor self-moving machine, and can move forward and backward, left and right, and up and down with the movement of the roadheader, thereby conveniently and quickly transferring the coal gangue cut by the roadheader to the belt conveyor.

[0003] Moreover, under ideal operating conditions, that is, when the center lines of the second conveyor of the tunnel boring machine and the belt conveyor precisely coincide, the coal flow unloaded by the second conveyor of the tunnel boring machine will, under the effective control and guidance of the coal baffle plate installed at the head of the second conveyor of the tunnel boring machine, accurately fall on the center line of the belt and be transported forward evenly and steadily along the center line of the belt, thereby ensuring the transportation efficiency of the coal mine and minimizing the possibility of coal gangue spilling and coal dust generation.

[0004] However, in the actual coal mining process, due to the variability of geological conditions, differences in the accuracy of tunnel boring machine operations, and many other uncontrollable factors, there is often a large deviation between the center line of the tunnel boring machine and the center line of the belt conveyor. Moreover, once this deviation occurs, the unloading direction of the second conveyor of the tunnel boring machine will change significantly, making it very easy for the coal gangue it transports to scatter everywhere during the unloading process. At the same time, during the scattering of coal gangue, the collision and friction between the coal gangue and the surrounding environment will produce a large amount of coal dust, which will bring great inconvenience and safety hazards to the operation of the operators; and in severe cases, the continuous scattering of coal gangue and the uneven distribution of coal flow may also cause uneven force on the belt, thereby causing the belt to deviate. Summary of the invention

[0005] The purpose of the present invention is to propose and design a closed shock-absorbing self-moving coal chute device and coal conveying system to address the problem that when the center line of the tunneling machine and the center line of the belt conveyor deviate greatly, coal gangue is easily scattered and coal dust is generated in the second conveyor of the existing tunneling machine. The device can always constrain and guide the coal flow transported by the tunneling machine to the belt conveyor, thereby avoiding the spilling of coal gangue, as well as the problems of sanitary cleaning and belt deviation caused by coal spilling, thereby greatly reducing the labor intensity of workers.

[0006] To achieve the above object, on the one hand, the present invention provides a closed shock-absorbing self-shifting coal chute device, which includes a fixed bracket. Casters are provided at the lower end of the fixed bracket, and a conveyor connecting member is provided on the side of the fixed bracket. A receiving coal chute is fixedly installed at the upper end of the fixed bracket. The shape of the receiving coal chute is a frustum of a pyramid with a larger upper part and a smaller lower part. A coal baffle is hinged at the lower end of each side surface of the receiving coal chute. A shock-absorbing spring is provided on the outer surface of each coal baffle, and the end of the shock-absorbing spring far from the coal baffle is connected to the fixed bracket. At this time, the present invention can be directly installed on the self-shifting tail of the belt conveyor through the fixed bracket and the casters, and the coal flow conveyed by the second conveyor of the roadheader is received and diverted through the closed receiving coal chute, so as to ensure that the coal flow conveyed by the second conveyor of the roadheader can always fall on the belt conveyor. Moreover, in this process, on the one hand, the present invention can be connected to the support trolley of the second conveyor of the roadheader through the conveyor connecting member, so that it can move forward and backward synchronously with the second conveyor of the roadheader, thereby improving the coal receiving effect of the present invention; on the other hand, through the cooperation between the shock-absorbing spring and the coal baffle, the received coal flow can be buffered, so as to achieve the purpose of protecting the coal baffle and reducing the impact of the coal flow on the belt of the belt conveyor.

[0007] Further, the conveyor connecting member includes a connecting rod. One end of the connecting rod is rotatably connected to the fixed bracket, and the other end of the connecting rod is provided with a conveyor connecting portion, and can be connected to the support trolley of the second conveyor of the roadheader through the conveyor connecting portion, so that the closed shock-absorbing self-shifting coal chute device can move forward and backward synchronously with the second conveyor of the roadheader.

[0008] Further, a cleaner is provided at the upper end of the inner side wall of the receiving coal chute, and the conveyor belt of the second conveyor of the roadheader is cleaned through the cleaner to ensure that the coal accumulated on the belt surface of the second conveyor of the roadheader can be completely removed and fall into the receiving coal chute.

[0009] Further, the cleaner includes a brush. The brush is fixedly installed at the upper end of the inner side wall of the receiving coal chute, and the highest point of the brush is higher than the upper end of the receiving coal chute to ensure that it can clean the conveyor belt of the second conveyor of the roadheader.

[0010] On the other hand, the present invention also provides a coal conveying system, which includes a belt conveyor. A second conveyor of the roadheader is provided above the belt conveyor. A closed shock-absorbing self-shifting coal chute device is provided between the head of the second conveyor of the roadheader and the self-shifting tail chute of the belt conveyor, and the coal conveyed by the second conveyor of the roadheader is diverted through the closed shock-absorbing self-shifting coal chute device, so as to ensure that it can always fall on the belt conveyor.

[0011] Further, the discharge port of the enclosed shock-absorbing self-shifting coal chute is smaller than the width of the belt conveyor, and the width of the receiving chute of the enclosed shock-absorbing self-shifting coal chute is greater than the width of the self-shifting tail of the belt conveyor and the width of the second conveyor of the roadheader, so as to ensure that it can catch the coal flow when the head of the second conveyor of the roadheader deviates from the center line of the belt conveyor.

[0012] Further, the conveyor connecting piece of the enclosed shock-absorbing self-shifting coal chute is connected to the support trolley of the second conveyor of the roadheader, and under the action of the conveyor connecting piece, it is ensured that the enclosed shock-absorbing self-shifting coal chute can move back and forth with the second conveyor of the roadheader.

[0013] Further, the cleaner of the enclosed shock-absorbing self-shifting coal chute is located at the overlapping position between the receiving chute and the second conveyor of the roadheader, and the cleaner contacts the conveyor belt of the second conveyor of the roadheader, so as to ensure that it can clean the conveyor belt of the second conveyor of the roadheader.

[0014] From the above technical solutions, it can be seen that the present invention has the following advantages: 1. The present invention can catch the coal flow when the head of the second conveyor of the roadheader deviates from the center line of the belt conveyor, thereby avoiding the situation of coal gangue spilling, and avoiding problems such as sanitation cleaning and belt deviation caused by spilled coal, and thus greatly reducing the labor intensity of workers; 2. The present invention can be connected to the support trolley of the second conveyor of the roadheader through the conveyor connecting piece, so that it can move back and forth synchronously with the second conveyor of the roadheader, thereby improving the coal receiving effect of the present invention; 3. The present invention can buffer the received coal flow through the cooperation between the shock-absorbing spring and the coal baffle, so as to achieve the purpose of protecting the coal baffle and reducing the impact of the coal flow on the belt of the belt conveyor; 4. The present invention can clean the conveyor belt of the second conveyor of the roadheader through the cleaner, ensuring that the accumulated coal on the belt surface of the second conveyor of the roadheader can be completely removed and fall into the receiving chute. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is the front view of the first embodiment in the present invention (the conveyor connecting piece is not drawn); Figure 2 It is the top view of the first embodiment in the present invention (the conveyor connecting piece is not drawn); Figure 3 This is the structural schematic diagram of the second embodiment in the present invention.

[0017] In the figure: 1. Fixed support; 2. Caster; 3. Shock-absorbing spring; 4. Coal baffle; 5. Feeding chute; 6. Cleaner; 7. Belt conveyor; 8. Second conveyor of the roadheader; 9. Support trolley; 10. Conveyor connecting piece; 11. Enclosed shock-absorbing self-propelled coal chute device. Specific implementation manners

[0018] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0019] Embodiment 1 As Figure 1 、 Figure 2 shown, Embodiment 1 of the present invention provides an enclosed shock-absorbing self-propelled coal chute device, which includes a fixed support 1. A caster 2 is provided at the lower end of the fixed support 1, and the device is placed above the self-propelled tail of the belt conveyor 7 through the caster 2. A conveyor connecting piece 10 is provided on the side of the fixed support 1. The conveyor connecting piece 10 includes a connecting rod. One end of the connecting rod is rotatably connected to the fixed support 1, and the other end of the connecting rod is provided with a conveyor connecting portion, and is connected to the support trolley 9 of the second conveyor 8 of the roadheader through the conveyor connecting portion, so that the enclosed shock-absorbing self-propelled coal chute device can move synchronously back and forth with the second conveyor 8 of the roadheader.

[0020] A feeding chute 5 is fixedly installed at the upper end of the fixed support 1. The feeding chute 5 is in the shape of a frustum with a larger upper part and a smaller lower part, and the width of the feeding chute 5 is greater than the width of the self-propelled tail of the belt conveyor 7 and the width of the second conveyor 8 of the roadheader to ensure that it can catch the coal flow when the head of the second conveyor 8 of the roadheader deviates from the center line of the belt conveyor 7. A coal baffle 4 is hinged at the lower end of each side of the feeding chute 5. A shock-absorbing spring 3 is provided on the outer surface of each coal baffle 4. The shock-absorbing spring 3 is horizontally arranged, and the end of the shock-absorbing spring 3 far from the coal baffle 4 is connected to the fixed support 1.

[0021] At this time, when the present invention is installed above the self - moving tail of the belt conveyor 7 and below the head of the second conveyor of the roadheader 8, it can receive and divert the coal flow conveyed by the second conveyor of the roadheader through the closed receiving chute 5, so as to ensure that the coal flow conveyed by the second conveyor of the roadheader always falls on the belt conveyor 7. Moreover, during this process, when the second conveyor of the roadheader moves back and forth, the first embodiment can ensure that it moves back and forth synchronously with the second conveyor of the roadheader 8 through the conveyor connecting piece 10, thereby improving the receiving effect of the first embodiment; when the coal flow falls into the receiving chute 5, the first embodiment can buffer the received coal flow through the cooperation between the shock - absorbing spring 3 and the coal - retaining plate 4, so as to protect the coal - retaining plate 4 and reduce the impact of the coal flow on the belt of the belt conveyor 7.

[0022] In addition, as a preference, in the first embodiment, a cleaner 6 can also be provided at the upper end of the inner side wall of the receiving chute 5, and the cleaner 6 can be in contact with the conveyor belt of the second conveyor of the roadheader 8. In this way, the first embodiment can clean the conveyor belt of the second conveyor of the roadheader 8 through the cleaner 6, ensure that the accumulated coal on the belt surface of the second conveyor of the roadheader 8 can be completely removed and fall into the receiving chute 5, and the cleaner 6 preferably adopts a brush structure.

[0023] Embodiment Two As Figure 3 shown, the second embodiment provides a coal - conveying system, which includes a belt conveyor 7 and a second conveyor of the roadheader 8 arranged above the belt conveyor 7. Moreover, a closed - type shock - absorbing self - moving coal - sliding device 11 as described in the first embodiment is arranged between the head of the second conveyor of the roadheader 8 and the self - moving tail slideway of the belt conveyor 7. The discharge port of the closed - type shock - absorbing self - moving coal - sliding device 11 is smaller than the width of the belt conveyor 7. The width of the receiving chute 5 of the closed - type shock - absorbing self - moving coal - sliding device 11 is greater than the width of the self - moving tail of the belt conveyor 7 and the width of the second conveyor of the roadheader 8. The conveyor connecting piece 10 of the closed - type shock - absorbing self - moving coal - sliding device 11 is connected to the support trolley 9 of the second conveyor of the roadheader 8. The cleaner 6 of the closed - type shock - absorbing self - moving coal - sliding device 11 is located at the overlapping position between the receiving chute 5 and the second conveyor of the roadheader 8, and the cleaner 6 is in contact with the conveyor belt of the second conveyor of the roadheader 8. Thus, it is ensured that the second embodiment can both divert the coal mined by the second conveyor of the roadheader 8 through the above - mentioned closed - type shock - absorbing self - moving coal - sliding device 11 to ensure that it always falls on the belt conveyor 7, and buffer the received coal flow through the shock - absorbing spring 3 to reduce the impact of the coal flow on the belt of the belt conveyor 7; clean the conveyor belt of the second conveyor of the roadheader 8 through the cleaner 6 to ensure that the accumulated coal on the belt surface of the second conveyor of the roadheader 8 can be completely removed and fall into the receiving chute 5.

[0024] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A closed shock-absorbing self-moving coal chute device, comprising a fixed bracket (1), characterized in that: A caster (2) is provided at the lower end of the fixed bracket (1), a conveyor connecting piece (10) is provided on the side of the fixed bracket (1), and a material receiving chute (5) is fixedly installed on the upper end of the fixed bracket (1), the material receiving chute (5) is in the shape of a prism with a larger upper portion and a smaller lower portion, and a coal baffle plate (4) is hingedly connected to the lower end of each side of the material receiving chute (5), and a shock absorbing spring (3) is provided on the outer surface of each coal baffle plate (4), and the end of the shock absorbing spring (3) away from the coal baffle plate (4) is connected to the fixed bracket (1).

2. The closed shock-absorbing self-moving coal chute device according to claim 1 is characterized in that: The conveyor connecting member (10) comprises a connecting rod, one end of which is rotatably connected to the fixed bracket (1), and the other end of the connecting rod is provided with a conveyor connecting portion.

3. The closed shock-absorbing self-moving coal chute device according to claim 1 is characterized in that: A sweeper (6) is provided at the upper end of the inner side wall of the material receiving chute (5).

4. The closed shock-absorbing self-moving coal chute device according to claim 3 is characterized in that: The cleaner (6) comprises a brush which is fixedly mounted on the upper end of the inner side wall of the material receiving chute (5).

5. A coal conveying system, comprising a belt conveyor (7), a second conveyor (8) of a roadheader being arranged above the belt conveyor (7), characterized in that: A closed shock-absorbing self-moving coal chute device according to any one of claims 1 to 4 is arranged between the head of the second conveyor (8) of the roadheader and the self-moving tail slide of the belt conveyor (7).

6. The coal transportation system according to claim 5, characterized in that: The discharge port of the closed shock-absorbing self-moving coal chute device is smaller than the width of the belt conveyor (7), and the width of the receiving chute (5) of the closed shock-absorbing self-moving coal chute device is larger than the width of the self-moving tail of the belt conveyor (7) and the width of the second conveyor (8) of the roadheader.

7. The coal transportation system according to claim 5, characterized in that: The conveyor connection piece (10) of the closed shock-absorbing self-moving coal chute device is connected to the support trolley (9) of the second conveyor (8) of the roadheader.

8. The coal transportation system according to claim 5, characterized in that: The sweeper (6) of the closed shock-absorbing self-moving coal chute device is located at the overlapping position of the material receiving chute (5) and the second conveyor (8) of the roadheader, and the sweeper (6) is in contact with the conveyor belt of the second conveyor (8) of the roadheader.

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