A mining scraper conveyor

Abstract

The present invention relates to the technical field of scraper conveying, and discloses a mine scraper conveyor, which includes a support frame. A material guiding groove is arranged on the support frame, and the material guiding groove extends outside the support frame on one side of the discharge end of the scraper conveyor. It also includes a rotating mechanism and a pressing-down mechanism. The rotating mechanism includes a support column arranged on the side of the support frame away from the discharge end of the scraper conveyor. One end of the support column is rotatably connected to one end of a deflection bracket, and the other end of the deflection bracket is provided with a first rotating shaft. A first winding wheel is arranged on the first rotating shaft. A fixed bracket is fixedly connected to the side of the support frame close to the discharge end of the scraper conveyor. A second rotating shaft is arranged at the end of the fixed bracket, and a second winding wheel is arranged on the second rotating shaft. The two sides of a traction chain are respectively connected to the first winding wheel and the second winding wheel. By arranging the traction chain and the scraper integrally above the material guiding groove, the present invention enables sufficient space to be left at the right end of the material guiding groove for connection with subsequent processing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of scraper conveying, and specifically relates to a mining scraper conveyor. Background Art

[0002] A conveyor that uses a scraper chain to tow and transport bulk materials in a trough is called a scraper conveyor. In the current coal mining face, the function of the scraper conveyor is not only to transport coal and materials, but also to be the running track of the shearer. Therefore, it has become an indispensable main equipment in modern coal mining technology.

[0003] However, in existing scraper conveyors, a ring-shaped traction chain is wrapped around the outside of the material guiding trough, and the traction chain drives the scraper to move above the material guiding trough. This causes the scraper to move at both ends of the material guiding trough, and the ends of the material guiding trough cannot be directly connected to subsequent material conveying equipment, affecting material transfer. Therefore, it needs to be improved. Summary of the Invention

[0004] The present invention provides a mining scraper conveyor to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mining scraper conveyor includes a support frame. A material guiding trough is arranged on the support frame, and the material guiding trough extends outside the support frame on one side of the discharge end of the scraper conveyor. It also includes a rotating mechanism and a pressing mechanism; the rotating mechanism includes a support column arranged on the side of the support frame away from the discharge end of the scraper conveyor. One end of the support column is rotatably connected to one end of a deflection bracket. The other end of the deflection bracket is provided with a first rotating shaft, and a first winding wheel is arranged on the first rotating shaft. A fixed bracket is fixedly connected to the side of the support frame close to the discharge end of the scraper conveyor. The end of the fixed bracket is provided with a second rotating shaft, and a second winding wheel is arranged on the second rotating shaft. The first winding wheel and the second winding wheel are respectively connected to both sides of the traction chain. A scraper cooperating with the material guiding trough is arranged on the outside of the traction chain; the pressing mechanism includes a lifting bracket arranged on the side of the support frame. The end of the lifting bracket is provided with an annular pressing frame cooperating with the scraper, and the annular pressing frame is arranged parallel to the material guiding trough.

[0007] As a preferred technical solution of the present invention, the end of the deflection bracket away from the ground is inclined towards the side away from the support frame. A groove with a trapezoidal cross-section is arranged on the surface of the material guiding trough, a protrusion cooperating with the groove is arranged on the scraper, and both ends of the annular pressing frame are arc-shaped structures.

[0008] As a preferred technical solution of the present invention, a first driving motor is arranged on the fixed bracket. The output shaft of the first driving motor is fixedly connected to a first helical gear, and the first helical gear meshes with a second helical gear fixedly connected to the second rotating shaft.

[0009] As a preferred technical solution of the present invention, guide posts are provided on the side walls of the support frame. The guide posts are slidably connected to the lifting brackets, and a lifting drive assembly for adjusting the height of the lifting brackets is provided inside the support frame. The lifting drive assembly includes a fixed beam fixedly connected to the support frame. A lifting screw rod is rotatably connected to the middle of the fixed beam. A cross beam fixedly connected to the lifting bracket is threadedly connected to the middle of the lifting screw rod. A second drive motor is provided on the fixed beam. The output shaft of the second drive motor is fixedly connected with a third bevel gear, and the third bevel gear is meshed with a fourth bevel gear fixedly connected to the end of the lifting screw rod.

[0010] As a preferred technical solution of the present invention, a fixed seat is provided on the lifting bracket on the side away from the discharge end of the scraper conveyor. A feed trough is provided on the fixed seat, and the feed trough is higher than the annular pressing frame.

[0011] As a preferred technical solution of the present invention, a buffer pad is provided between the support frame and the material guiding trough.

[0012] The present invention has the following beneficial effects:

[0013] By integrally arranging the traction chain and the scraper above the material guiding trough, sufficient space can be left at the right end of the material guiding trough for connection with subsequent processing equipment, so that the ore can be more stably transferred from the material guiding trough to the subsequent processing equipment. And because the deflection bracket is inclined upward to the upper left, when the annular pressing frame moves upward, the scraper moves upward, so that the material guiding trough and the scraper can be more conveniently cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for describing the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of a mining scraper conveyor.

[0016] Figure 2 It is a front view of a mining scraper conveyor.

[0017] Figure 3 It is a schematic structural diagram of the material guiding trough in a mining scraper conveyor.

[0018] Figure 4 It is a schematic structural diagram of the rotating mechanism in a mining scraper conveyor.

[0019] Figure 5 ForFigure 4 Partial enlarged schematic diagram of A.

[0020] Figure 6 It is a schematic structural diagram of a deflection bracket in a mining scraper conveyor.

[0021] Figure 7 It is a schematic structural diagram of the cooperation between a scraper and a material guiding trough in a mining scraper conveyor.

[0022] Figure 8 It is a schematic structural diagram of a downward pressing mechanism in a mining scraper conveyor.

[0023] Figure 9 is Figure 8 right view of.

[0024] Figure 10 It is a schematic structural diagram of a lifting drive assembly in a mining scraper conveyor.

[0025] In the figure: 1, support frame; 2, material guiding trough; 3, downward pressing mechanism; 4, rotating mechanism; 5, buffer pad; 6, support column; 7, deflection bracket; 8, first rotating shaft; 9, first winding wheel; 10, traction chain; 11, scraper; 12, fixed bracket; 13, second rotating shaft; 14, second winding wheel; 15, first driving motor; 16, first helical gear; 17, second helical gear; 18, guiding column; 19, lifting bracket; 20, fixed seat; 21, feeding trough; 22, annular pressing frame; 23, lifting drive assembly; 24, cross beam; 25, fixed beam; 26, lifting screw rod; 27, fourth helical gear; 28, third helical gear; 29, second driving motor. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In one embodiment, please refer to Figures 1 - 10, a mining scraper conveyor, including a support frame 1. The support frame 1 is a frame-shaped structure, assembled by welding plates or bolt connection, and there are also auxiliary reinforcing ribs and other structures in the middle to make the structure of the entire scraper conveyor more stable. The support frame 1 can be directly placed on the ground and kept stable by bolt connection. A material guiding chute 2 is arranged above the support frame 1. The material guiding chute 2 is placed in the left-right direction. Assuming the right side of the scraper conveyor is the discharge end and the material is discharged from the right side of the scraper conveyor, the right end of the material guiding chute 2 extends to the right, that is, the right end of the material guiding chute 2 is further to the right than the right side of the support frame 1. A buffer pad 5 is arranged between the support frame 1 and the material guiding chute 2. The buffer pad 5 is made of rubber material and can play a role in shock absorption and buffering. Moreover, the inclination angle of the material guiding chute 2 can be adjusted by the thickness of the buffer pad 5, so that the material guiding chute 2 can achieve the effect of transferring materials at different heights. It also includes a rotating mechanism 4 and a pressing mechanism 3;

[0028] The rotating mechanism 4 includes a support column 6 arranged at the left end of the support frame 1. The support column 6 is arranged in the front-back direction. The front and rear ends of the support column 6 are rotatably connected to the lower ends of the deflection brackets 7. The upper ends of the deflection brackets 7 are rotatably connected to the front and rear ends of the first rotating shaft 8. And the deflection brackets 7 are arranged obliquely upward to the left. Therefore, the deflection brackets 7 always tend to rotate counterclockwise under the action of their own weight. On both the front and rear sides of the first rotating shaft 8, there are first winding wheels 9. At the right end of the support frame 1, the lower end of a fixed bracket 12 is fixedly connected. The fixed bracket 12 is a U-shaped structure with an upward opening. The fixed bracket 12 is arranged vertically. And the upper end of the fixed bracket 12 is rotatably connected to the front and rear ends of a second rotating shaft 13 arranged in the front-back direction. On both the front and rear sides of the second rotating shaft 13, there are second winding wheels 14. A traction chain 10 is wrapped around the outside of the first winding wheels 9 and the second winding wheels 14. That is to say, there are annular traction chains 10 arranged on both the front and rear sides of the scraper conveyor. A scraper 11 is arranged outside the traction chain 10. The scraper 11 is arranged in the front-back direction. And the front and rear sides of the scraper 11 are respectively connected to the front and rear two traction chains 10. The front and rear two traction chains 10 rotate at the same speed. Therefore, the scraper 11 can rotate counterclockwise in the front-back direction;

[0029] The pressing mechanism 3 includes a lifting bracket 19 arranged on the side of the support frame 1. The lifting bracket 19 is a U-shaped structure with an upward opening. The front and rear sides of the lifting bracket 19 are two vertically arranged vertical plates located on the front and rear sides of the support frame 1. The two lifting brackets 19 are distributed on the left and right sides of the support frame 1. And annular pressing frames 22 arranged horizontally are provided at the upper ends of the front sides and the upper ends of the rear sides of the two lifting brackets 19. The annular pressing frame 22 is composed of a rectangle and semi-circular structures arranged at both ends of the rectangle. Therefore, the left and right ends of the annular pressing frame 22 are arc surfaces, and the lower surface of the annular pressing frame 22 presses above the lower scraper 11. Therefore, when the left scraper 11 moves downward along with the traction chain 10, it will contact the left side of the annular pressing frame 22, and the scraper 11 will move along the arc-shaped side surface of the annular pressing frame 22 to the lower surface of the annular pressing frame 22. When the scraper 11 moves to the right side of the annular pressing frame 22, it will move upward again. Thus, the position of the lower part in the annular structure formed by the scraper 11 is a plane, and the annular pressing frame 22 and the material guiding groove 2 are arranged in parallel. Thus, the lower scraper 11 can move from left to right along the surface of the material guiding groove 2, thereby achieving the effect of scraping materials.

[0030] In one case of this embodiment, a groove with a trapezoidal cross-section is provided on the surface of the material guiding groove 2, and a protrusion cooperating with the groove is provided on the scraper 11. The two ends of the pressing frame are arc-shaped structures. By providing a groove above the material guiding groove 2, it is ensured that the ore does not fall from the front and rear sides of the material guiding groove 2 when moving inside the material guiding groove 2, achieving the effect of material collection.

[0031] In one case of this embodiment, a first driving motor 15 is provided on the fixed bracket 12. The output shaft of the first driving motor 15 is fixedly connected with a first helical gear 16, and the first helical gear 16 is meshed and connected with a second helical gear 17 fixedly connected with the second rotating shaft 13. The first driving motor 15 is arranged above the front side of the fixed bracket 12. The first driving motor 15 drives the second rotating shaft 13 to rotate through gear transmission, so that the traction chain 10 rotates counterclockwise, and thus the scraper 11 rotates counterclockwise along with the traction chain 10, completing the power driving process of the scraper 11.

[0032] In a case of this embodiment, a guide post 18 is provided on the side wall of the support frame 1. The guide post 18 is slidably connected to the lifting bracket 19. An elevating drive assembly 23 for adjusting the height of the lifting bracket 19 is provided inside the support frame 1. The guide post 18 is vertically arranged on the side of the support frame 1, so that the lifting bracket 19 can move up and down along the guide post 18. When the lifting bracket 19 moves upward, the traction chain 10 will become slack. However, at this time, the deflection bracket 7 continuously rotates counterclockwise, so that the traction chain 10 always remains in a tensioned state, so that the lower scraper 11 closely adheres to the annular pressing frame 22 and moves upward, so that the lower scraper 11 moves upward and disengages from the material guide groove 2. And in order to facilitate the operator to add materials, a fixed seat 20 is provided on the left lifting bracket 19. A feed chute 21 is provided on the fixed seat 20. The lower end of the feed chute 21 is inclined toward the direction of the material guide groove 2, and the feed chute 21 moves up and down with the lifting bracket 19. When the ore is placed in the feed chute 21, the ore will slide down along the feed chute 21 into the material guide groove 2 to achieve the effect of feeding.

[0033] In a case of this embodiment, the elevating drive assembly 23 includes a cross beam 24 arranged in the left-right direction. The left and right ends of the cross beam 24 are fixedly connected to the middle parts of the lower ends of the lifting brackets 19. And fixedly connected to the upper and lower sides of the middle part of the support frame 1 are fixed beams 25 arranged in the front-rear direction. The middle parts of the fixed beams 25 are rotatably connected to the upper and lower sides of the lifting screw rod 26. The middle part of the lifting screw rod 26 is threadedly connected to the middle part of the cross beam 24. And a second drive motor 29 is provided at the rear side of the lower fixed beam 25. The output shaft of the second drive motor 29 is fixedly connected to a third bevel gear 28. The third bevel gear 28 meshes with a fourth bevel gear 27. The fourth bevel gear 27 is fixedly connected to the lower end of the lifting screw rod 26. Therefore, the second drive motor 29 can drive the lifting screw rod 26 to rotate by means of gear transmission. The lifting screw rod 26 can drive the cross beam 24 to move up and down, so that the left and right lifting brackets 19 move up and down, so that the annular pressing frame 22 moves up and down.

[0034] During the implementation of this embodiment, the support frame 1 is stably placed on the ground, and the support frame 1 is fixed. At the same time, the right end of the material guiding groove 2 is connected to relevant subsequent processing equipment. At this time, the second driving motor 29 is started, and the output shaft of the second driving motor 29 drives the annular pressing frame 22 to move downward through gear transmission. At this time, the middle part of the traction chain 10 is pressed downward, and the scraper 11 falls into the material guiding groove 2. The first driving motor 15 is started, and the first driving motor 15 drives the traction chain 10 to rotate counterclockwise through gear transmission. At this time, the scraper 11 moves along the material guiding groove 2 from left to right. The operator continuously pours ore into the material guiding groove 2 through the feeding groove 21. The scraper 11 continuously pushes the ore to the right. At this time, the ore moves to the right along the material guiding groove 2. When the ore moves to the rightmost end of the material guiding groove 2, it will enter the subsequent processing equipment for processing.

[0035] For cleaning, stop the first driving motor 15, the traction chain 10 stops rotating, start the second driving motor 29 in reverse, the lifting screw rod 26 moves upward, the annular pressing frame 22 moves upward, and the lower traction chain 10 drives the lower scraper 11 to move upward. The scraper 11 disengages from the material guiding groove 2. At this time, the material guiding groove 2 can be cleaned, and the first driving motor 15 is slowly started. The traction chain 10 slowly drives the scraper 11 to move. At this time, the scraper 11 transferred to the lower part can be cleaned.

[0036] The present invention is applicable to a mine scraper. By integrally arranging the traction chain 10 and the scraper 11 above the material guiding groove 2, enough space can be left at the right end of the material guiding groove 2 to be connected to subsequent processing equipment, so that the ore can be more stably transferred from the material guiding groove 2 to the subsequent processing equipment. And because the deflection bracket 7 is inclined upward to the left, when the annular pressing frame 22 moves upward, the scraper 11 moves upward, so that the material guiding groove 2 and the scraper 11 can be more conveniently cleaned.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A mining scraper conveyor, comprising a support frame, on which a material guiding trough is arranged, characterized in that, The material guiding trough extends outside the support frame on one side of the discharge end of the scraper conveyor, and further includes a rotating mechanism and a pressing-down mechanism; The rotating mechanism includes a support column arranged on the side of the support frame away from the discharge end of the scraper conveyor. One end of the support column is rotatably connected to one end of a deflection bracket. The other end of the deflection bracket is provided with a first rotating shaft, and a first winding wheel is arranged on the first rotating shaft. A fixed bracket is fixedly connected to the side of the support frame close to the discharge end of the scraper conveyor. The end of the fixed bracket is provided with a second rotating shaft, and a second winding wheel is arranged on the second rotating shaft. The two sides of a traction chain are respectively connected to the first winding wheel and the second winding wheel. A scraper cooperating with the material guiding trough is arranged on the outer side of the traction chain. The end of the deflection bracket away from the ground is inclined towards the side away from the support frame; The pressing-down mechanism includes a lifting bracket arranged on the side wall of the support frame. The end of the lifting bracket is provided with an annular pressing frame cooperating with the scraper. The annular pressing frame is arranged parallel to the material guiding trough. A guiding column is arranged on the side wall of the support frame, and the guiding column is slidably connected to the lifting bracket. A lifting driving assembly for adjusting the height of the lifting bracket is arranged inside the support frame; The lower surface of the annular pressing frame presses on the upper side of the lower scraper. When the lifting bracket moves upward, the deflection bracket continuously rotates counterclockwise, so that the traction chain always remains in a tensioned state, so that the lower scraper closely adheres to the annular pressing frame and moves upward, so that the lower scraper moves upward and disengages from the material guiding trough, so that the material guiding trough and the scraper can be more conveniently cleaned.

2. The armoured face conveyor according to claim 1, wherein, A groove with a trapezoidal cross-section is arranged on the surface of the material guiding trough, a protrusion cooperating with the groove is arranged on the scraper, and both ends of the annular pressing frame are of an arc structure.

3. A mining scraper conveyor according to claim 1, characterized in that, A first driving motor is arranged on the fixed bracket. The output shaft of the first driving motor is fixedly connected with a first helical gear, and the first helical gear meshes with a second helical gear fixedly connected with the second rotating shaft.

4. A mining scraper according to claim 1, characterized in that, A fixed seat is arranged on the lifting bracket on the side away from the discharge end of the scraper conveyor. A feed trough is arranged on the fixed seat, and the feed trough is higher than the annular pressing frame.

5. A mining scraper conveyor according to claim 1, characterized in that, The lifting driving assembly includes a fixed beam fixedly connected with the support frame. A lifting lead screw is rotatably connected to the middle of the fixed beam. A cross beam fixedly connected with the lifting bracket is threadedly connected to the middle of the lifting lead screw. A second driving motor is arranged on the fixed beam. The output shaft of the second driving motor is fixedly connected with a third helical gear, and the third helical gear meshes with a fourth helical gear fixedly connected with the end of the lifting lead screw.

6. The armoured face conveyor according to claim 1, wherein A buffer pad is arranged between the support frame and the material guiding trough.

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