Gravel conveying device for mining engineering

Abstract

The invention belongs to the technical field of mining engineering, and particularly discloses a broken stone conveying device for mining engineering, which comprises a screw conveyor, a blanking bin is arranged above the front end of the screw conveyor, a bracket is mounted below the front end of the screw conveyor, and a driving mechanism is mounted on the surface of the bracket. The device comprises a discharging bin, a turnover mechanism is arranged in the discharging bin, a lifting mechanism is arranged below the turnover mechanism, a positioning block is fixedly installed on the surface of the discharging bin, a cylindrical rod is slidably installed in the positioning block, and a matching rod is fixedly installed at the top of the cylindrical rod. The lifting mechanism and the overturning mechanism are arranged in the discharging bin, the overturning mechanism can discharge large stones and prevent the large stones from falling into the spiral conveyor, the lifting mechanism can play a buffering role, impact force generated when materials fall can be effectively absorbed, vibration and friction of the conveying belt are reduced, and the conveying efficiency is improved. Therefore, the service life of the conveying belt is prolonged.

Description

Technical Field

[0001] The invention belongs to the field of mining engineering, and specifically discloses a crushed stone conveying device for mining engineering. Background Art

[0002] The high-altitude cold regions in western my country are rich in metal mineral resources and are important strategic resource reserves for the country. Most of the newly added mineral resource bases are distributed in the high-altitude cold regions in the west. Gravel transportation in mining engineering refers to the process of transporting the mined gravel from the mining site to the designated location. Gravel transportation plays a vital role in mining engineering. It ensures the efficient and safe transportation of ore, thus affecting the efficiency and cost of the entire mining operation.

[0003] Existing gravel conveying devices used in mining projects are unable to filter large volumes of gravel, and when the gravel falls, the impact force of the fall can easily damage the surface of the conveying device, causing the vibration and friction of the conveying device to increase significantly when conveying gravel, reducing the service life of the conveying device and increasing the maintenance cost of the conveying device. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a crushed stone conveying device for mining engineering, so as to solve the problem that the prior art cannot filter large volumes of crushed stone, and when the crushed stone falls, the impact force of the fall can easily damage the surface of the conveying device, so that when the conveying device transports the crushed stone, the vibration force and friction force are greatly increased, the service life of the conveying device is reduced, and the maintenance cost of the conveying device is increased.

[0005] To achieve the above objectives, the present invention provides a gravel conveying device for mining engineering, comprising a screw conveyor, a lower bin is arranged above the front end of the screw conveyor, a bracket is installed below the front end of the screw conveyor, a driving mechanism is installed on the surface of the bracket, a turning mechanism is arranged inside the lower bin, a lifting mechanism is arranged below the turning mechanism, a positioning block is fixedly installed on the surface of the lower bin, a cylindrical rod is slidably installed inside the positioning block, a matching rod is fixedly installed on the top of the cylindrical rod, the surface of the matching rod cooperates with the turning mechanism and the lifting mechanism, a rocker is fixedly installed on the bottom of the cylindrical rod, and the rocker cooperates with the driving mechanism.

[0006] In the above technical solution, preferably, the driving mechanism includes a stepper motor, which is installed on the inner wall of the bracket, a cam is installed at the output end of the stepper motor, a sliding groove is provided on the surface of the cam, a sliding pin is fixedly installed at the bottom of the rocker, and the surface of the sliding pin is slidably installed in the sliding groove.

[0007] The gear is engaged with the gear by a toothed connection, and the toothed connection of the gear is connected with the toothed connection of the gear.

[0008] In the above technical solution, preferably, a plurality of guide rods are arranged inside the lower bin, and the guide rods are located below the blocking claws.

[0009] In the above technical solution, preferably, the lifting mechanism includes a buffer plate, which is movably arranged in the lower material bin and is located below the guide rod. An open groove is provided on the surface of the lower material bin, and two protruding columns are symmetrically arranged at the end of the buffer plate. The surface of the protruding column passes through the open groove, and the middle part of the protruding column is connected to the inner wall of the open groove through a rotating shaft. A path groove is provided on the surface of the protruding column on the outer side of the lower material bin, and sliding columns are provided at both ends of the bottom of the mating rod, and the surface of the sliding column is slidably arranged in the path groove.

[0010] In the above technical solution, preferably, both sides of the lower material bin are provided with material dropping openings, and the material dropping openings correspond to the flipping mechanism.

[0011] In the above technical solution, preferably, a first inclined block is arranged inside the lower material bin and between the lifting mechanism and the guide rod, a second inclined block is arranged inside the lower material bin and below the lifting mechanism, and a discharge port is opened on the surface of the screw conveyor and at the bottom of the inclined surface of the second inclined block.

[0012] Compared with the prior art, the present invention has the following beneficial effects: by arranging a lifting mechanism and a turning mechanism inside the lower hopper, and driving the lifting mechanism and the turning mechanism to repeatedly move through a driving mechanism, first the turning mechanism can discharge large stones to prevent large stones from falling into the screw conveyor, and under the action of the lifting mechanism, the falling gravel can be received, and then the gravel is transported to the screw conveyor, the device can effectively absorb the impact force when the gravel falls, reduce the vibration and friction of the screw conveyor, thereby extending the service life of the screw conveyor and reducing maintenance costs, and the gravel can also fall smoothly into the screw conveyor, reducing the downtime caused by material blockage or scattering, and improving the continuity and stability of gravel transmission, and finally reducing the noise and vibration generated by the gravel during the transmission process, and the working environment is more comfortable and quiet. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional view of the lower bin of the present invention; Figure 3 For the present invention Figure 2 Another perspective structural diagram; Figure 4 For the present invention Figure 2 The enlarged view of point A in the middle; Figure 5 For the present invention Figure 2 The enlarged view of point B in the middle; Figure 6 For the present invention Figure 3 Enlarged view of point C in the middle; Figure 7 It is a side structural sectional view of the lower silo of the present invention; Figure 8 For the present invention Figure 7 The enlarged view of point D in the middle; Fig. 9 It is a schematic diagram of the driving mechanism structure of the present invention.

[0014] In the figure: 1. screw conveyor; 2. discharge bin; 3. driving mechanism; 4. cylindrical rod; 5. lifting mechanism; 6. flipping mechanism; 7. stepping motor; 8. cam; 9. slide groove; 10. rocker; 11. sliding pin; 12. buffer plate; 13. opening groove; 14. extension column; 15. path groove; 16. sliding column; 17. matching rod; 18. positioning block; 19. side plate; 20. connecting rod; 21. connecting column; 22. limit block; 23. linear groove; 24. sliding plate; 25. rack; 26. circular groove; 27. gear; 28. light rod; 29. ​​stop claw; 30. drop opening; 31. guide rod; 32. first tilting block; 33. second tilting block; 34. discharge opening. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] like Figure 1 - Fig. 9 The present invention shows a crushed stone conveying device for mining engineering, comprising a screw conveyor 1, a lower bin 2 is arranged above the front end of the screw conveyor 1, a bracket is installed below the front end of the screw conveyor 1, a driving mechanism 3 is installed on the surface of the bracket, a turning mechanism 6 is arranged inside the lower bin 2, a lifting mechanism 5 is arranged below the turning mechanism 6, a positioning block 18 is fixedly installed on the surface of the lower bin 2, a cylindrical rod 4 is slidably installed inside the positioning block 18, a matching rod 17 is fixedly installed on the top of the cylindrical rod 4, the surface of the matching rod 17 cooperates with the turning mechanism 6 and the lifting mechanism 5, and the bottom of the cylindrical rod 4 is fixedly installed. A rocker 10 is fixedly installed, and the rocker 10 cooperates with the driving mechanism 3. By arranging a lifting mechanism 5 and a turning mechanism 6 inside the lower hopper 2, and driving the lifting mechanism 5 and the turning mechanism 6 to repeatedly move through the driving mechanism 3, first the turning mechanism 6 can discharge large stones to prevent large stones from falling into the screw conveyor 1. Under the action of the lifting mechanism 5, the falling gravel can be received, and then the gravel is transported to the screw conveyor 1, which can play a buffering role, can effectively absorb the impact force when the material falls, reduce the vibration and friction of the conveyor belt, and thus extend the service life of the conveyor belt.

[0018] The driving mechanism 3 includes a stepper motor 7, which is installed on the inner wall of the bracket. A cam 8 is installed on the output end of the stepper motor 7. A slide groove 9 is provided on the surface of the cam 8. A sliding pin 11 is fixedly installed on the bottom of the rocker 10. The surface of the sliding pin 11 is slidably installed in the slide groove 9. The cam 8 is driven to rotate by the stepper motor 7. The rotation of the cam 8 causes the sliding pin 11 to move in the slide groove 9, thereby realizing the reciprocating lifting and lowering of the cylindrical rod 4.

[0019] The flip mechanism 6 includes two polished rods 28, which are symmetrically mounted on the top of the inner cavity of the lower hopper 2. A plurality of claws 29 are evenly mounted on the surface of the polished rods 28 by bolts. The claws 29 on the surfaces of the two polished rods 28 correspond to each other in a staggered manner. The claws 29 are in a horizontal state under normal conditions. The claws 29 can block larger stones to prevent large stones from falling into the screw conveyor 1. Two straight grooves 23 are symmetrically arranged on the outer surface of the lower hopper 2. A circular groove 26 is arranged below the straight groove 23. The inner part of the circular groove 26 A gear 27 is rotatably installed, and the end of the light rod 28 is fixedly connected to the gear 27. A sliding plate 24 is slidably arranged inside the linear groove 23. A rack 25 is arranged at the bottom of the sliding plate 24. The rack 25 meshes with the gear 27. A limit groove is provided above the linear groove 23. A limit block 22 is installed on the top of the sliding plate 24. The limit block 22 is slidably arranged in the limit groove to enhance the stability of the sliding plate 24 when sliding. Side plates 19 are installed on both sides of the top of the matching rod 17. The surface of the side plate 19 close to the lower bin 2 is passed through The shaft is provided with a connecting rod 20, and the other end of the connecting rod 20 is provided with a connecting column 21. The end of the connecting column 21 is connected to the sliding plate 24 through the shaft. When the matching rod 17 is lifted upward, one end of the connecting rod 20 connected to the side plate 19 will move upward, and at the same time, the other end of the connecting rod 20 will drive the sliding plate 24 to move toward the middle of the lower silo 2. While the sliding plate 24 moves, it will drive the gear 27 to rotate forward, and the gear 27 will also drive the light rod 28 to rotate forward, so that when the light rod 28 rotates forward, the blocking claw 29 will be lifted upward. The claw 29 is in an inclined state, and larger stones will roll down to the two sides of the lower silo 2 along the inclined angle of the claw 29. Then, when the matching rod 17 moves downward, one end of the connecting rod 20 connected to the side plate 19 will move downward, and at the same time, the other end of the connecting rod 20 will drive the sliding plate 24 to move to the side of the lower silo 2. While moving, the sliding plate 24 will drive the gear 27 to rotate in the opposite direction, and the gear 27 will drive the light rod 28 to rotate in the opposite direction, so that when the light rod 28 rotates in the opposite direction, the claw 29 will fall and the claw 29 will return to its original state.

[0020] A plurality of guide rods 31 are arranged inside the lower hopper 2 , and the guide rods 31 are located below the blocking claws 29 . The crushed stones can fall from the gaps between the plurality of guide rods 31 , and the crushed stones are further filtered to prevent larger stones from falling directly on the surface of the buffer plate 12 .

[0021] The lifting mechanism 5 includes a buffer plate 12, which is movably arranged in the lower material bin 2, and the buffer plate 12 is below the guide rod 31. One end of the buffer plate 22 extends to the edge of the inner wall of the lower material bin 2, and a baffle is arranged at the other end of the buffer plate 22. The top of the baffle will fit with the bottom surface of the first inclined block 32, so that a sealed space is formed between the buffer plate 12 and the guide rod 31. When the buffer plate 12 is in an inclined state, an outlet will be opened in the sealed space, and the crushed stone will fall into 34 through the outlet. An opening groove 13 is provided on the surface of the lower material bin 2, and two protruding columns 14 are symmetrically arranged at the end of the buffer plate 12. The surface of the protruding column 14 passes through the opening groove 13, and the middle part of the protruding column 14 is connected to the inner wall of the opening groove 13 through a rotating shaft. A path groove 15 is provided on the surface outside the lower bin 2, and sliding columns 16 are provided at both ends of the bottom of the matching rod 17. The surface of the sliding column 16 is slidably arranged in the path groove 15. When the matching rod 17 is lifted upward, the sliding column 16 will drag one end of the protruding column 14 outside the lower bin 2 to move upward. At this time, the other end of the protruding column 14 will move downward, and the buffer plate 12 will be in an inclined state, so that the crushed stone falls along the inclined surface of the buffer plate 12. Then, when the matching rod 17 moves downward, the sliding column 16 will drag one end of the protruding column 14 outside the lower bin 2 to move downward. At this time, the other end of the protruding column 14 will move upward, and the buffer plate 12 will be in a horizontal state, so that the crushed stone can directly fall on the surface of the buffer plate 12, thereby preventing the crushed stone from directly falling into the screw conveyor 1.

[0022] There are drop openings 30 on both sides of the lower silo 2, which correspond to the flip mechanism 6. When the claws 29 are lifted upward, larger stones will roll down to both sides of the lower silo 2 along the inclination angle of the claws 29, so that the larger stones will roll out from the drop openings 30.

[0023] A first inclined block 32 is arranged inside the lower hopper 2 and between the lifting mechanism 5 and the guide rod 31, a second inclined block 33 is arranged inside the lower hopper 2 and below the lifting mechanism 5, a discharge port 34 is provided on the surface of the screw conveyor 1 and at the bottom of the inclined surface of the second inclined block 33, the first inclined block 32 and the second inclined block 33 both have a guiding function, which can guide and constrain the movement trajectory of the crushed stone, and under the action of the first inclined block 32, the crushed stone can slide to the surface of the buffer plate 12 away from the end of the protruding column 14, so as to facilitate the subsequent transportation of the crushed stone, and under the action of the second inclined block 33, the crushed stone can fall into the discharge port 34, so that the crushed stone can be transported to the screw conveyor 1.

[0024] Working principle: First, the staff pours the crushed stones into the lower silo 2, and then drives the cam 8 to rotate through the stepper motor 7. The rotation of the cam 8 makes the sliding pin 11 move in the slide groove 9 to realize the reciprocating lifting of the cylindrical rod 4, and the cylindrical rod 4 can drive the matching rod 17 to reciprocate and lift. Then, when the matching rod 17 is lifted upward, one end of the connecting rod 20 connected to the side plate 19 will move upward, and at the same time, the other end of the connecting rod 20 will drive the sliding plate 24 to move to the middle of the lower silo 2. While moving, the sliding plate 24 will drive the gear 27 to rotate forward, and the gear 27 will also drive the light rod 28 to rotate forward, so that when the light rod 28 rotates forward, the block The claw 29 will be lifted upward, and the claw 29 will be in an inclined state. The larger stones will roll down to the two sides of the lower silo 2 along the inclined angle of the claw 29, and the larger stones will roll out from the drop port 30. Then the gravel can fall from the gaps between the multiple guide rods 31 to further filter the gravel. While the claw 29 moves upward, the sliding column 16 will drag one end of the protruding column 14 on the outside of the lower silo 2 to move upward. At this time, the other end of the protruding column 14 will move downward, and the buffer plate 12 will be in an inclined state, so that the gravel will fall along the inclined surface of the buffer plate 12, and finally the gravel can fall into the drop port 34, so that the gravel can be transported to the screw conveyor 1.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A crushed stone conveying device for mining engineering, comprising a screw conveyor (1), characterized in that: A material lowering bin (2) is arranged above the front end of the screw conveyor (1), a bracket is installed below the front end of the screw conveyor (1), a driving mechanism (3) is installed on the surface of the bracket, a turning mechanism (6) is arranged inside the material lowering bin (2), a lifting mechanism (5) is arranged below the turning mechanism (6), a positioning block (18) is fixedly installed on the surface of the material lowering bin (2), a cylindrical rod (4) is slidably installed inside the positioning block (18), a matching rod (17) is fixedly installed on the top of the cylindrical rod (4), the surface of the matching rod (17) cooperates with the turning mechanism (6) and the lifting mechanism (5), a rocker (10) is fixedly installed on the bottom of the cylindrical rod (4), and the rocker (10) cooperates with the driving mechanism (3).

2. A crushed stone conveying device for mining engineering according to claim 1, characterized in that: The driving mechanism (3) comprises a stepping motor (7), the stepping motor (7) being mounted on the inner wall of the bracket, a cam (8) being mounted on the output end of the stepping motor (7), a sliding groove (9) being provided on the surface of the cam (8), a sliding pin (11) being fixedly mounted on the bottom of the rocker (10), and a surface of the sliding pin (11) being slidably mounted in the sliding groove (9).

3. A crushed stone conveying device for mining engineering according to claim 2, characterized in that: The flip mechanism (6) comprises two polished rods (28), the two polished rods (28) are symmetrically mounted at the top of the inner cavity of the lower material bin (2), a plurality of catches (29) are evenly mounted on the surface of the polished rods (28) by bolts, the catches (29) on the surfaces of the two polished rods (28) correspond to each other in a staggered manner, the outer surface of the lower material bin (2) is symmetrically provided with two linear grooves (23), a circular groove (26) is provided below the linear groove (23), a gear (27) is rotatably mounted inside the circular groove (26), the end of the polished rod (28) is fixedly connected to the gear (27), and a sliding gear (27) is slidably arranged inside the linear groove (23) A plate (24) is provided at the bottom of the sliding plate (24), the rack (25) is meshed with the gear (27), a limit slot is provided above the linear slot (23), a limit block (22) is installed at the top of the sliding plate (24), the limit block (22) is slidably set in the limit slot, side plates (19) are installed on both sides of the top of the matching rod (17), a connecting rod (20) is installed on the surface of the side plate (19) close to the lower bin (2) through a rotating shaft, a connecting column (21) is provided at the other end of the connecting rod (20), and the end of the connecting column (21) is connected to the sliding plate (24) through a rotating shaft.

4. A crushed stone conveying device for mining engineering according to claim 3, characterized in that: A plurality of guide rods (31) are arranged inside the lower material bin (2), and the guide rods (31) are located below the blocking claws (29).

5. A crushed stone conveying device for mining engineering according to claim 4, characterized in that: The lifting mechanism (5) comprises a buffer plate (12), the buffer plate (12) is movably arranged in the lower material bin (2), and the buffer plate (12) is located below the guide rod (31); an opening groove (13) is provided on the surface of the lower material bin (2); two extending columns (14) are symmetrically arranged at the end of the buffer plate (12); the surface of the extending column (14) passes through the opening groove (13); the middle part of the extending column (14) is connected to the inner wall of the opening groove (13) through a rotating shaft; the surface of the extending column (14) on the outer side of the lower material bin (2) is provided with a path groove (15); sliding columns (16) are provided at both ends of the bottom of the matching rod (17); the surface of the sliding column (16) is slidably arranged in the path groove (15).

6. A crushed stone conveying device for mining engineering according to claim 5, characterized in that: The two sides of the material discharge bin (2) are provided with material discharge openings (30), and the material discharge openings (30) correspond to the turnover mechanisms (6).

7. A crushed stone conveying device for mining engineering according to claim 6, characterized in that: A first tilting block (32) is arranged inside the lower material bin (2) and between the lifting mechanism (5) and the guide rod (31); a second tilting block (33) is arranged inside the lower material bin (2) and below the lifting mechanism (5); and a lower material outlet (34) is provided on the surface of the screw conveyor (1) and at the bottom of the tilted surface of the second tilting block (33).

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