Mining scraper conveyor

Abstract

The invention relates to the technical field of scraper conveying, and discloses a mining scraper conveyor which comprises a supporting frame, a guide groove is formed in the supporting frame, the side, located at the discharging end of the scraper conveyor, of the guide groove extends out of the supporting frame, and the mining scraper conveyor further comprises a rotating mechanism and a pressing mechanism; the rotating mechanism comprises a supporting column arranged on the side, away from the discharging end of the scraper, of the supporting frame, the supporting column is rotationally connected with one end of a deflection support, a first rotating shaft is arranged at the other end of the deflection support, a first winding wheel is arranged on the first rotating shaft, and a fixing support is fixedly connected to the side, close to the discharging end of the scraper, of the supporting frame. A second rotating shaft is arranged at the end of the fixing support, a second winding wheel is arranged on the second rotating shaft, and the first winding wheel and the second winding wheel are connected with the two sides of the traction chain respectively. The traction chain and the scraping plate are integrally arranged above the material guide groove, so that enough space can be reserved at the right end of the material guide groove to be connected with subsequent processing equipment.

Description

Technical Field

[0001] The invention relates to the technical field of scraper conveying, in particular to a scraper conveyor for mining. Background Art

[0002] The conveyor that uses a scraper chain to transport bulk materials in a trough is called a scraper conveyor. In the current coal mining face, the role of the scraper conveyor is not only to transport coal and materials, but also to serve as the running track of the coal mining machine, so it has become an indispensable main equipment in the modern coal mining process.

[0003] However, existing scraper conveyors all wrap a ring-shaped traction chain around the outside of the material guide trough, and the traction chain moves the scraper above the material guide trough, which causes the scrapers to move at both ends of the material guide trough. The ends of the material guide trough cannot be directly connected to the subsequent material conveying equipment, and the material transfer is affected, so it needs to be improved. Summary of the invention

[0004] The present invention provides a mining scraper, which solves the problems raised in the above background technology.

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

[0006] A mining scraper comprises a support frame, a material guide trough is arranged on the support frame, the material guide trough is located on one side of the scraper discharging end and extends out of the support frame, and also comprises a rotating mechanism and a pressing mechanism; the rotating mechanism comprises a support column arranged on the side of the support frame away from the scraper discharging end, 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, a first winding wheel is arranged on the first rotating shaft, a fixed bracket is fixedly connected to one side of the support frame close to the scraper discharging end, a second rotating shaft is arranged at the end of the fixed bracket, a second winding wheel is arranged on the second rotating shaft, the first winding wheel and the second winding wheel are respectively connected to two sides of a traction chain, and a scraper matching with the material guide trough is arranged on the outer side of the traction chain; the pressing mechanism comprises a lifting bracket arranged on the side of the support frame, and an annular pressure frame matching with the scraper is arranged at the end of the lifting bracket, and the annular pressure frame is arranged parallel to the material guide trough.

[0007] As a preferred technical solution of the present invention, the end of the deflection bracket away from the ground is inclined toward the side away from the support frame. The surface of the guide trough is provided with a groove with a trapezoidal cross-section, the scraper is provided with a protrusion matching the groove, and the two ends of the annular pressure frame are arc-shaped structures.

[0008] As a preferred technical solution of the present invention, a first drive motor is arranged on the fixed bracket, an output shaft of the first drive motor is fixedly connected to a first bevel gear, and the first bevel gear is meshedly connected to a second bevel gear fixedly connected to the second rotating shaft.

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

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

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

[0012] The present invention has the following benefits:

[0013] By arranging the traction chain and the scraper as a whole above the material guide trough, there is enough space at the right end of the material guide trough for connection with subsequent processing equipment, so that the mineral material can be transferred from the material guide trough to the subsequent processing equipment more stably, and because the deflection bracket is tilted toward the upper left, when the annular pressure frame moves upward, the scraper moves upward, so that the material guide trough and the scraper can be cleaned more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The figure is a schematic diagram of the structure of a mining scraper.

[0016] Figure 2 The figure is a front view of a mining scraper.

[0017] Figure 3 The present invention is a schematic diagram of the structure of a material guide chute in a mining scraper.

[0018] Figure 4 The figure is a schematic diagram of the structure of a rotating mechanism in a mining scraper.

[0019] Figure 5 for Figure 4 A is a partial enlarged schematic diagram of the middle part.

[0020] Figure 6 The figure is a schematic diagram of the structure of a deflection bracket in a mining scraper.

[0021] Figure 7 The present invention is a schematic diagram of the structure of the scraper and the material guide trough in a mining scraper.

[0022] Figure 8 The present invention is a structural schematic diagram of a downward pressure mechanism in a mining scraper.

[0023] Fig. 9 for Figure 8 Right view of .

[0024] Fig.10 The present invention is a schematic diagram of the structure of a lifting drive assembly in a mining scraper.

[0025] In the figure: 1. support frame; 2. material guide trough; 3. 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 drive motor; 16. first bevel gear; 17. second bevel gear; 18. guide column; 19. lifting bracket; 20. fixed seat; 21. feed trough; 22. annular pressure frame; 23. lifting drive assembly; 24. crossbeam; 25. fixed beam; 26. lifting screw; 27. fourth bevel gear; 28. third bevel gear; 29. ​​second drive motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In one embodiment, see Figure 1-Figure 10A mining scraper comprises a support frame 1, which is a frame-shaped structure, assembled by plate welding or bolt connection, and is provided with auxiliary reinforcing ribs and other structures in the middle, so that the structure of the entire scraper is more stable, and the support frame 1 can be directly placed on the ground and kept stable by bolt connection, and a guide trough 2 is arranged above the support frame 1, and the guide trough 2 is placed in a left-right direction. Assuming that the right side of the scraper is the discharging end, the material is discharged from the right side of the scraper, so the right end of the guide trough 2 extends to the right side, that is, the right end of the guide trough 2 is further to the right than the right side of the support frame 1, and a buffer pad 5 is arranged between the support frame 1 and the guide trough 2. The buffer pad 5 is made of rubber material and can play a shock-absorbing and buffering effect, and the inclination angle of the guide trough 2 can be adjusted by the thickness of the buffer pad 5, so that the guide trough 2 can complete the effect of transferring materials at different heights, and 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 a front-to-back direction, the front and rear ends of the support column 6 are rotatably connected to the lower end of the deflection bracket 7, the upper end of the deflection bracket 7 is rotatably connected to the front and rear ends of the first rotating shaft 8, and the deflection bracket 7 is arranged toward the upper left, so the deflection bracket 7 always maintains a counterclockwise rotation trend under the action of its own weight, and a first winding wheel 9 is arranged on both the front and rear sides of the first rotating shaft 8. The lower end of the fixed bracket 12 is fixedly connected to the right end of the support frame 1, and the fixed bracket 12 is a U-shaped structure with an opening upward. The fixed bracket 12 is arranged vertically, and the fixed bracket The upper end of the frame 12 is rotatably connected to the front and rear ends of the second rotating shaft 13 arranged in the front and rear directions. The second rotating shaft 13 is provided with a second winding wheel 14 on both the front and rear sides. The traction chain 10 is wrapped around the outside of the first winding wheel 9 and the second winding wheel 14. That is to say, the traction chain 10 of an annular structure is provided on both the front and rear sides of the scraper. The outside of the traction chain 10 is provided with a scraper 11. The scraper 11 is arranged in the front and rear directions, and the front and rear sides of the scraper 11 are respectively connected to the front and rear traction chains 10. The front and rear traction chains 10 rotate at the same speed, so the scraper 11 can rotate counterclockwise while maintaining the front and rear directions.

[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 opening upward. 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 an annular pressing frame 22 arranged in a left-right direction is arranged at the upper end of the front side and the upper end of the rear side of the two lifting brackets 19. The annular pressing frame 22 is composed of a rectangle and a semicircular structure 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 end of the annular pressing frame 22 The surface is pressed on the scraper 11 below, so the scraper 11 on the left side will contact the left side of the annular pressure frame 22 after the traction chain 10 moves downward, and the scraper 11 will move along the curved side of the annular pressure frame 22 to the lower surface of the annular pressure frame 22. When the scraper 11 moves to the right side of the annular pressure frame 22, it will move upward again, so that the lower position of the annular structure composed of the scraper 11 is a plane, and the annular pressure frame 22 and the material guide trough 2 are arranged in parallel, so that the scraper 11 below can move from left to right along the surface of the material guide trough 2, thereby achieving the scraping effect.

[0030] In one case of this embodiment, the surface of the guide trough 2 is provided with a groove with a trapezoidal cross section, the scraper 11 is provided with a protrusion that matches the groove, and the two ends of the pressure frame are arc-shaped structures. By providing a groove above the guide trough 2, the ore will not fall from the front and rear sides of the guide trough 2 when moving inside the guide trough 2, thereby achieving the effect of material collection.

[0031] In one case of this embodiment, a first drive motor 15 is provided on the fixed bracket 12, and the output shaft of the first drive motor 15 is fixedly connected to a first bevel gear 16, and the first bevel gear 16 is meshedly connected to a second bevel gear 17 fixedly connected to the second rotating shaft 13. The first drive motor 15 is arranged above the front side of the fixed bracket 12, and the first drive motor 15 rotates the second rotating shaft 13 through gear transmission, so that the traction chain 10 rotates counterclockwise, so that the scraper 11 rotates counterclockwise with the traction chain 10, and the power drive processing of the scraper 11 is completed.

[0032] In one case of this embodiment, the side wall of the support frame 1 is provided with a guide column 18, and the guide column 18 is slidably connected to the lifting bracket 19, and a lifting drive assembly 23 for adjusting the height of the lifting bracket 19 is provided inside the support frame 1. The guide column 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 column 18. When the lifting bracket 19 moves upward, the traction chain 10 will be loose, but at this time, the deflection bracket 7 continues to rotate counterclockwise, so that the traction chain 10 always keeps a tensioned state, so that the scraper 11 below moves upward close to the annular pressure frame 22, so that the scraper 11 below moves upward and disengages from the guide trough 2. In order to facilitate the operator to add materials, a fixed seat 20 can be set on the left lifting bracket 19, and a feed trough 21 is set on the fixed seat 20. The lower end of the feed trough 21 is inclined in the direction of the guide trough 2, and the feed trough 21 will move up and down with the lifting bracket 19. When the ore is placed in the feed trough 21, the ore will slide along the feed trough 21 into the guide trough 2, thereby achieving the feeding effect.

[0033] In one case of the present embodiment, the lifting drive assembly 23 includes a horizontal beam 24 arranged in a left-right direction, the left and right ends of the horizontal beam 24 are fixedly connected to the lower end middle part of the lifting bracket 19, and the upper and lower sides of the middle part of the support frame 1 are fixedly connected with fixed beams 25 arranged in a front-back direction, the middle part of the fixed beam 25 is 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 horizontal beam 24, and a second drive motor 29 is arranged on the rear side of the lower fixed beam 25, the output shaft of the second drive motor 29 is fixedly connected to the third bevel gear 28, the third bevel gear 28 is meshedly connected to the fourth bevel gear 27, and the fourth bevel gear 27 is fixedly connected to the lower end of the lifting screw rod 26, so the second drive motor 29 can drive the lifting screw rod 26 to rotate by gear transmission, and the lifting screw rod 26 can drive the horizontal beam 24 to move up and down, thereby making the lifting brackets 19 on the left and right sides move up and down, thereby making the annular pressure frame 22 move up and down.

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

[0035] During cleaning, stop the first drive motor 15, stop the traction chain 10 from rotating, start the second drive motor 29 in reverse, move the lifting screw 26 upward, move the annular pressure frame 22 upward, and the traction chain 10 below will drive the scraper 11 below to move upward. The scraper 11 is disengaged from the material guide trough 2. At this time, the material guide trough 2 can be cleaned, and the first drive 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 bottom can be cleaned.

[0036] The present invention is applicable to a mining scraper, in which the traction chain 10 and the scraper 11 are integrally arranged above the material guide trough 2, so that the right end of the material guide trough 2 can have enough space to be connected with subsequent processing equipment, so that the mineral material can be more stably transferred from the material guide trough 2 to the subsequent processing equipment, and because the deflection bracket 7 is inclined toward the upper left, when the annular pressure frame 22 moves upward, the scraper 11 moves upward, so that the material guide trough 2 and the scraper 11 can be cleaned more conveniently.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A mining scraper, comprising a support frame, a material guide trough is provided on the support frame, characterized in that: The guide trough is located on one side of the discharging end of the scraper conveyor and extends out of the supporting frame, and also includes a rotating mechanism and a pressing mechanism; The rotating mechanism comprises a supporting column arranged on a side of the supporting frame away from the discharging end of the scraper, the supporting column is rotatably connected to one end of the deflection bracket, the other end of the deflection bracket is provided with a first rotating shaft, a first winding wheel is provided on the first rotating shaft, a fixed bracket is fixedly connected to a side of the supporting frame close to the discharging end of the scraper, a second rotating shaft is provided at the end of the fixed bracket, a second winding wheel is provided on the second rotating shaft, the first winding wheel and the second winding wheel are respectively connected to two sides of a traction chain, and a scraper matched with a material guide trough is provided on the outer side of the traction chain; The pressing mechanism comprises a lifting bracket arranged on the side of the supporting frame, an annular pressing frame matched with the scraper is arranged at the end of the lifting bracket, and the annular pressing frame is arranged parallel to the material guide groove.

2. A mining scraper according to claim 1, characterized in that: The end of the deflection bracket away from the ground is tilted toward a side away from the support frame.

3. A mining scraper according to claim 1, characterized in that: The surface of the material guide trough is provided with a groove with a trapezoidal cross section, the scraper is provided with a protrusion matched with the groove, and the two ends of the annular pressure frame are arc-shaped structures.

4. A mining scraper according to claim 1, characterized in that: The fixed bracket is provided with a first driving motor, the output shaft of the first driving motor is fixedly connected with a first bevel gear, and the first bevel gear is meshedly connected with a second bevel gear fixedly connected with the second rotating shaft.

5. A mining scraper according to claim 1, characterized in that: The side wall of the support frame is provided with a guide column, the guide column is slidably connected to the lifting bracket, and the interior of the support frame is provided with a lifting drive component for adjusting the height of the lifting bracket.

6. A mining scraper according to claim 5, characterized in that: A fixed seat is arranged on the lifting bracket at a side far away from the discharging end of the scraper conveyor, and a feed trough is arranged on the fixed seat, and the feed trough is higher than the annular pressure frame.

7. A mining scraper according to claim 5, characterized in that: The lifting drive assembly includes a fixed beam fixedly connected to the supporting frame, a lifting screw rod is rotatably connected to the middle part of the fixed beam, and a cross beam fixedly connected to the lifting bracket is threadedly connected to the middle part of the lifting screw rod, a second driving motor is arranged on the fixed beam, and the output shaft of the second driving motor is fixedly connected to the third bevel gear, and the third bevel gear is meshingly connected to the fourth bevel gear fixedly connected to the end of the lifting screw rod.

8. A mining scraper according to claim 1, characterized in that: A buffer pad is arranged between the support frame and the material guiding trough.

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