Conveying device for coal mine transportation

Abstract

The utility model relates to the technical field of coal mine carts for coal cinder transportation, in particular to a conveying device for coal mine transportation. According to the device, a scraper is arranged in a carriage, the two sides of the scraper make contact with the inner walls of the two sides of the carriage respectively, the bottom of the scraper makes contact with the inner wall of the bottom of the carriage, the scraper can automatically move to the front end from the rear end of the carriage through a guide mechanism, and a pulling mechanism is arranged on one side of the scraper and can drive the scraper to move to the rear end of the carriage from the front end of the carriage. And during coal unloading, the scraper can automatically scrape residual coal cinder in the carriage and push the coal cinder out of an opening in the front end of the carriage.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine trolleys for transporting cinder, and specifically to a conveying device for coal mine transportation. Background Art

[0002] Currently, in the process of coal mine production, it is usually necessary to transport coal, rock or other mining materials from the excavation face or other production areas to the processing equipment or temporary storage areas. When the transportation passage is narrow or inconvenient to pass, in order to improve the transportation efficiency, a hand-pushed transport vehicle is generally used. When the existing hand-pushed coal mine transport vehicle dumps coal mine, there will be a problem that cinder adheres to the inner wall of the transport vehicle, resulting in incomplete dumping of cinder. When encountering this problem, the residual cinder is generally removed manually, consuming labor costs.

[0003] The Chinese invention patent with the publication number CN114919608A provides a transport vehicle for coal mine production. By setting a strip-shaped groove on the side wall of the hopper and then setting an automatic scraping mechanism inside the strip-shaped groove, the scraping of the residual cinder inside the hopper is realized through the movement of the scraper. The scraping mechanism adopted by this transport vehicle can indeed remove the residual cinder inside the hopper. However, since the opening of the strip-shaped groove is on the surface of the hopper, when coal is manually added to the hopper, it is very easy to block the strip-shaped groove, thereby causing the automatic scraping mechanism of this device to fail. Moreover, the implementation of this device requires installing a motor and a battery on the transport vehicle body, which will greatly increase the weight of the vehicle body. And this device is also provided with a metal counterweight block, which will further increase the difficulty of manual transportation.

[0004] Therefore, there is an urgent need for a coal mine transportation device that can not only automatically scrape the cinder adhering to the inner wall of the transport vehicle but also does not increase the transportation difficulty of the operator. Utility Model Content

[0005] The purpose of the present utility model is to solve the deficiencies existing in the prior art, and provides a coal mine transportation device that can automatically scrape the cinder adhering to the inner wall of the transport vehicle.

[0006] The present utility model is achieved through the following technical solutions:

[0007] A conveying device for coal mine transportation, comprising a carriage, wheels and a handle. The wheels are rotatably arranged at the bottom of the carriage, and the handle is arranged on the outer side wall at the rear end of the carriage. It further includes a scraper arranged inside the carriage. Both sides of the scraper are in contact with the inner walls on both sides of the carriage, and the bottom of the scraper is in contact with the inner wall of the carriage bottom. The scraper can automatically move from the rear end of the carriage to the front end through a guiding mechanism. A pulling mechanism is arranged on one side of the scraper, and the pulling mechanism can drive the scraper to move from the front end of the carriage to the rear end of the carriage. Both sides of the upper end of the scraper are provided with first connecting rods. Fixed columns are arranged at the ends of the two first connecting rods far away from the scraper. Both fixed columns are connected to the guiding mechanism. The scraper can be driven by the guiding mechanism to automatically move from the rear end of the carriage to the front end. When the rear end of the transport vehicle is lifted manually to unload coal, most of the coal will automatically slide out of the transport vehicle. However, a small amount of coal slag will adhere to the inner wall of the carriage and is difficult to unload. Usually, manual labor is required to clean out the coal slag. This device is provided with an automatic scraper, which can automatically scrape off the coal slag and push it out of the carriage, saving a large amount of labor costs.

[0008] Further, there are two guiding mechanisms, which are respectively arranged on the outer side walls of both sides of the carriage. The guiding mechanism includes a second guiding tube and a guiding spring. The second guiding tube is horizontally arranged, and the end of the second guiding tube away from the handle is closed. One end of the guiding spring is connected to the closed end of the second guiding tube. A second connecting rod is arranged on the outer side wall of the fixed column. The other end of the guiding spring is connected to the fixed column through the second connecting rod. The side wall of the second guiding tube is provided with a first opening for the movement of the second connecting rod.

[0009] The guiding mechanism includes a guiding spring; one end of the guiding spring is connected to the second guiding tube, and the other end is connected to the fixed column; the two guiding mechanisms are respectively arranged on the outer side walls of both sides of the carriage, which can ensure the balance of the scraper during the movement process. The guiding mechanism is driven by the guiding spring, avoiding the use of motors in the prior art, which can save production costs and reduce the weight of the transport vehicle.

[0010] Furthermore, there are two guiding mechanisms, which are respectively arranged on the outer side walls of both sides of the carriage. The guiding mechanism includes a second guiding tube, a first guiding tube and a guiding spring. The first guiding tube can slide inside the second guiding tube. The end of the first guiding tube close to the handle is closed. The second guiding tube is horizontally arranged. A third connecting rod is provided on the inner wall of the end of the second guiding tube away from the handle. A guiding spring fixing block is provided at the end of the third connecting rod away from the second guiding tube. One end of the guiding spring is connected to the closed end of the first guiding tube, and the other end is connected to the guiding spring fixing block. An opening for the third connecting rod to pass through is provided on the side wall of the first guiding tube. A second connecting rod is provided on the outer side wall of the fixed column, and the second connecting rod is connected to the outer side wall of the end of the first guiding tube away from the handle. A first opening for the second connecting rod to move is provided on the side wall of the second guiding tube. The first guiding tube can play a role in extension, offsetting the length of the guiding spring itself, enabling the scraper to move forward to the opening of the carriage and ensuring that the cinder can be completely unloaded from the carriage.

[0011] Furthermore, the pulling mechanism is a pull rope connected to the side wall of the scraper close to the handle. A through hole is provided on the side wall of the rear end of the carriage. The end of the pull rope away from the scraper is arranged outside the carriage through the through hole. A second fixing rod is provided on the outer side wall of the rear end of the carriage. A first fixing rod perpendicular to the second fixing rod is provided at the end of the second fixing rod away from the carriage. Manually pulling the pull rope can quickly pull the scraper from the front end of the carriage back to the rear end of the carriage. The first fixing rod and the second fixing rod can fix the pull rope, thereby fixing the scraper, avoiding the scraper moving towards the front end of the carriage when the transport vehicle is loading coal and affecting the coal loading.

[0012] Furthermore, a number of convex blocks are provided on the upper surfaces of both side walls of the carriage. A first groove is provided on the lower surface of the first connecting rod. When the fixed column moves to the corresponding position of the convex block, the top of the convex block can contact the bottom of the first groove. When the fixed column moves to the corresponding position of the convex block, the cooperation of the convex block and the first groove can drive the scraper to vibrate. When the scraper vibrates, the cinder adhering to the scraper can be shaken off, ensuring the cleanliness of the scraper.

[0013] Furthermore, an opening is provided at the front end of the carriage. Front plates are hinged to the front ends of both side walls of the carriage. The opening can be opened and closed by the rotation of the two front plates. Second grooves are provided on the upper surfaces of the two front plates, and a first U-shaped locking rod is provided between the two second grooves. The two front plates can be locked through the cooperation of the two second grooves and the first U-shaped locking rod. A third groove is provided on the upper surface of the front plate, and a fourth groove is provided on the upper surfaces of both side walls of the carriage. A second U-shaped locking rod is provided between the third groove and the fourth groove. After the front plate is opened, it is fixed through the cooperation of the third groove, the fourth groove, and the second U-shaped locking rod. There is an opening at the front end of the carriage, and the front plates are hinged to the front end of the carriage. When loading coal, the front plates are locked by the first U-shaped locking rod to prevent coal from slipping out of the opening. When the transport vehicle needs to unload coal, the front plates are opened and locked to the side walls of the carriage, which can prevent coal from accumulating at the dead corner between the front plates and the carriage when sliding.

[0014] Furthermore, there are two second fixing rods, and the two second fixing rods are respectively arranged at both ends of the first fixing rod. The spaced arrangement of the second fixing rods can save the time for manually winding the pulling rope around the second fixing rods.

[0015] Furthermore, the contact parts between the scraping plates and the inner wall of the carriage are all made of rubber material. The rubber material can prevent the scraping plates from scratching the inner wall of the carriage.

[0016] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0017] 1. In the device of the present utility model, the front end of the transport vehicle is hinged with a front plate. When unloading coal, the front plate is fixed to both sides of the transport vehicle, which can prevent dead corners between the front plate and the side wall of the carriage, thus avoiding the accumulation of coal slag during unloading and unable to be unloaded smoothly.

[0018] 2. A scraping plate is arranged inside the transport vehicle. Driven by the guiding mechanism, the scraping plate can automatically move from the rear end of the carriage to the front end during coal unloading, and then automatically scrape the residual coal slag inside the carriage and push it out through the opening at the front end of the carriage.

[0019] 3. A first groove is provided on the lower surface of the first connecting rod, and a convex block is provided on the upper surface of the side wall of the carriage. When the first connecting rod moves to the convex block, the scraping plate vibrates, which can shake off the coal slag adhering to the scraping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model, where:

[0021] Figure 1 is the left view of the present utility model;

[0022] Figure 2It is the top view of the device of the present utility model;

[0023] Figure 3 It is Figure 2 the schematic diagram of part A in

[0024] Figure 4 It is the cross-sectional view of the guiding mechanism;

[0025] Figure 5 It is the schematic diagram of the scraper.

[0026] Marks in the attached drawings and corresponding names of parts:

[0027] 1 - carriage, 2 - handle, 3 - first guiding tube, 4 - second guiding tube, 5 - guiding spring, 6 - bump, 7 - front plate, 8 - first U-shaped locking rod, 9 - fourth groove, 10 - guiding spring fixing block, 11 - wheel, 12 - first fixing rod, 13 - second fixing rod, 14 - pull rope, 15 - scraper, 16 - fixing column, 17 - third connecting rod, 18 - first connecting rod, 19 - second connecting rod. Specific embodiments

[0028] To make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following combines embodiments to further elaborate on the present utility model. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and do not serve as a limitation to the present utility model.

[0029] As Figures 1-4 shown, a conveying device for coal mine transportation includes a carriage 1, wheels 11 and a handle 2. The wheels 11 are rotatably arranged at the bottom of the carriage 1, and the handle 2 is arranged on the outer side wall at the rear end of the carriage 1. It is characterized in that it further includes a scraper 15 arranged inside the carriage 1. Both sides of the scraper 15 are in contact with the inner walls on both sides of the carriage 1, and the bottom of the scraper 15 is in contact with the inner wall of the bottom of the carriage 1. The scraper 15 can automatically move from the rear end of the carriage 1 to the front end through a guiding mechanism. A pulling mechanism is arranged on one side of the scraper 15, and the pulling mechanism can drive the scraper 15 to move from the front end of the carriage 1 to the rear end of the carriage 1; both sides of the upper end of the scraper 15 are provided with first connecting rods 18, and fixed columns 16 are arranged at the ends of the two first connecting rods 18 away from the scraper 15, and the two fixed columns 16 are both connected to the guiding mechanism.

[0030] In the above technical solution, a scraper 15 is provided inside the carriage 1. Since the two side walls and the bottom of the scraper 15 are respectively in contact with the two inner side walls of the carriage 1 and the upper surface of the bottom of the carriage 1, when the scraper 15 automatically moves from the rear end of the carriage 1 to the front end of the carriage 1 through the guiding mechanism, the scraper 15 can scrape the cinder residues remaining on the inner wall of the carriage 1 clean. And as the scraper 15 moves, the cinder can be pushed to the front end of the carriage 1. Since a pulling mechanism is also provided on the side wall of the scraper 15, the operator can pull the scraper 15 from the front end of the carriage 1 to the rear end of the carriage 1 through the pulling mechanism and lock it, which is convenient for the operator to add coal into the carriage 1.

[0031] As Figures 1-3 shown, there are two guiding mechanisms, and they are respectively arranged on the two outer side walls of the carriage 1. The guiding mechanism includes a second guiding tube 4 and a guiding spring 5. The second guiding tube 4 is horizontally arranged, and the end of the second guiding tube 4 away from the handle 2 is closed. One end of the guiding spring 5 is connected to the closed end of the second guiding tube 4. A second connecting rod 19 is provided on the outer side wall of the fixed column 16. The other end of the guiding spring 5 is connected to the fixed column 16 through the second connecting rod 19. The side wall of the second guiding tube 4 is provided with a first opening for the second connecting rod 19 to move.

[0032] There are two guiding mechanisms, and they are respectively arranged on the two outer side walls of the carriage 1. The guiding mechanism includes a second guiding tube 4, a first guiding tube 3 and a guiding spring 5. The first guiding tube 3 can slide inside the second guiding tube 4. The end of the first guiding tube 3 close to the handle 2 is closed. The second guiding tube 4 is horizontally arranged. A third connecting rod 17 is provided on the inner wall of the end of the second guiding tube 4 away from the handle 2. A guiding spring fixing block 10 is provided at the end of the third connecting rod 17 away from the second guiding tube 4. One end of the guiding spring 5 is connected to the closed end of the first guiding tube 3, and the other end of it is connected to the guiding spring fixing block 10. The side wall of the first guiding tube 3 is provided with an opening for the third connecting rod 17 to pass through. A second connecting rod 19 is provided on the outer side wall of the fixed column 16. The second connecting rod 19 is connected to the outer side wall of the end of the first guiding tube 3 away from the handle 2. The side wall of the second guiding tube 4 is provided with a first opening for the second connecting rod 19 to move.

[0033] The above technical solution defines two implementation manners of the guiding mechanism. In the first implementation manner, the guiding mechanism is only composed of the second guiding tube 4 and the guiding spring 5. Since one end of the guiding spring 5 is fixed to the second connecting rod 19 connected to the outer wall of the fixed column 16, before the coal in the transport vehicle is dumped outwards, the operator first releases the pulling mechanism. When the coal is dumped outwards, the scraper 15 loses the acting force of the coal and can move from the rear end of the carriage 1 to the front end of the carriage 1 under the drive of the guiding mechanism, and at the same time, the cinder is pushed out of the carriage 1. However, since the guiding spring 5 itself has a certain length, the scraper 15 cannot move to the opening at the frontmost end of the carriage 1, and thus it is impossible to completely push the cinder out of the carriage 1. The second implementation manner improves the first implementation manner. The first guiding tube 3 is added to the guiding mechanism, and the fixed column 16 is connected to one end of the first guiding tube 3 close to the front end of the carriage 1, and the guiding spring 5 is connected to one end of the first guiding tube 3 close to the handle 2. This setting can absorb the length of the guiding spring 5 itself, and the scraper 15 can move to the opening at the front end of the carriage 1 to completely push the cinder out of the carriage 1. More specifically, in order to enhance the smoothness of the movement of the scraper 15, two sets of guiding mechanisms can be provided on the same side wall of the carriage 1. More specifically, in the first implementation manner, when the scraper 15 moves to the rearmost end of the carriage 1, the length of the second guiding tube 4 should be such that the end of the guiding spring 5 is not exposed. In the second implementation manner, limiting blocks are provided on the inner walls of the first guiding tube 3 and the second guiding tube 4 to prevent the first guiding tube 3 from sliding out of the second guiding tube 4 when the scraper 15 moves to the rearmost end of the carriage 1. More specifically, the opening on the side wall of the first guiding tube 3 should be large enough to prevent the first guiding tube 3 from displacing during the movement, and a too small opening cannot allow the third connecting rod 17 to pass through smoothly.

[0034] As Figures 1-2 shown, the pulling mechanism is a pull rope 14 connected to the side wall of the scraper 15 close to the handle 2. A through hole is provided on the side wall at the rear end of the carriage 1. The end of the pull rope 14 away from the scraper 15 is arranged outside the carriage 1 through the through hole. A second fixing rod 13 is provided on the outer side wall at the rear end of the carriage 1. One end of the second fixing rod 13 away from the carriage 1 is provided with a first fixing rod 12 perpendicular to the second fixing rod 13. There are two second fixing rods 13, and the two second fixing rods 13 are respectively arranged at both ends of the first fixing rod 12.

[0035] In the above technical solution, the specific structure of the pulling mechanism is defined. The scraper 15 moves to the front end of the carriage 1 driven by the guiding mechanism. After the coal unloading work is completed, the operator can pull the pulling rope 14 to pull the scraper 15 to the rear end of the carriage 1, and wind the pulling rope 14 around the two second fixing rods 13 for fixation. The first fixing rod 12 can prevent the pulling rope 14 from falling off the second fixing rod 13. When the transport vehicle needs to unload coal, the operator unties the pulling rope 14. When the scraper 15 moves, the pulling rope 14 will move along the through hole. More specifically, the pulling mechanism can be set as a folding rod that can be self-locked by a ratchet and pawl, which can further save the operation time of the operator. More specifically, in order to ensure the stability of the scraper 15 when it is pulled back, the pulling rope 14 is arranged at the center of the scraper 15, or the number of pulling ropes 14 is increased.

[0036] As Figures 1-2 shown, a plurality of bumps 6 are provided on the upper surfaces of both side walls of the carriage 1. A first groove is provided on the lower surface of the first connecting rod 18. When the fixing column 16 moves to the corresponding position of the bump 6, the top of the bump 6 can contact the bottom of the first groove.

[0037] An opening is provided at the front end of the carriage 1. Front plates 7 are hinged to the front ends of both side walls of the carriage 1. The opening can be opened and closed by the rotation of the two front plates 7.

[0038] Second grooves are provided on the upper surfaces of the two front plates 7. A first U-shaped locking rod 8 is provided between the two second grooves. The two front plates 7 can be locked by the cooperation of the two second grooves and the first U-shaped locking rod 8.

[0039] A third groove is provided on the upper surface of the front plate 7. Fourth grooves 9 are provided on the upper surfaces of both side walls of the carriage 1. A second U-shaped locking rod is provided between the third groove and the fourth groove 9. After the front plate 7 is opened, it is fixed by the cooperation of the third groove, the fourth groove 9 and the second U-shaped locking rod; the contact surfaces between the scraper 15 and the inner wall of the carriage 1 are all made of rubber.

[0040] In the above technical solution, through the cooperation of the bump 6 and the first groove, it is possible to generate intermittent vibration when the scraper 15 moves, thereby shaking off the coal cinder adhered to the surface of the scraper 15; the front plate 7 of the carriage 1 is hinged to the front end of the carriage 1. During coal loading, the front plate 7 is locked by the first U-shaped locking rod 8. During coal unloading, the front plate 7 is fixed to both sides of the carriage 1 by the cooperation of the third groove, the fourth groove 9 and the second U-shaped locking rod, avoiding the front plate 7 from affecting the coal unloading work.

[0041] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A conveying device for coal mine transportation, comprising a carriage (1), wheels (11) and a handle (2), wherein the wheels (11) are rotatably arranged at the bottom of the carriage (1), and the handle (2) is arranged on the outer side wall at the rear end of the carriage (1), characterized in that: It also includes a scraper (15) arranged inside the carriage (1), the two sides of the scraper (15) respectively contact the inner walls of the two sides of the carriage (1), and the bottom of the scraper (15) contacts the bottom inner wall of the carriage (1), the scraper (15) can automatically move from the rear end to the front end of the carriage (1) through a guide mechanism, and a pulling mechanism is provided on one side of the scraper (15), and the pulling mechanism can drive the scraper (15) to move from the front end of the carriage (1) to the rear end of the carriage (1); First connecting rods (18) are provided on both sides of the upper end of the scraper (15), and two ends of the first connecting rods (18) away from the scraper (15) are provided with fixing columns (16), and the two fixing columns (16) are connected to the guide mechanism.

2. The conveying device for coal mine transportation according to claim 1, characterized in that: There are two guide mechanisms, which are respectively arranged on the two outer side walls of the carriage (1). The guide mechanism comprises a second guide tube (4) and a guide spring (5). The second guide tube (4) is arranged horizontally. The end of the second guide tube (4) away from the handle (2) is closed. One end of the guide spring (5) is connected to the closed end of the second guide tube (4). A second connecting rod (19) is arranged on the outer side wall of the fixed column (16). The other end of the guide spring (5) is connected to the fixed column (16) through the second connecting rod (19). The side wall of the second guide tube (4) is provided with a first opening for the second connecting rod (19) to move.

3. The conveying device for coal mine transportation according to claim 1, characterized in that: There are two guide mechanisms, which are respectively arranged on the two outer side walls of the carriage (1). The guide mechanisms include a second guide tube (4), a first guide tube (3) and a guide spring (5). The first guide tube (3) can slide inside the second guide tube (4). The end of the first guide tube (3) close to the handle (2) is closed. The second guide tube (4) is arranged horizontally. A third connecting rod (17) is arranged on the inner wall of the end of the second guide tube (4) away from the handle (2). A guide spring fixing block (10) is arranged on the end of the third connecting rod (17) away from the second guide tube (4). One end of the guide spring (5) is connected to the closed end of the first guide tube (3), and the other end is connected to the guide spring fixing block (10). The side wall of the first guide tube (3) is provided with an opening for the third connecting rod (17) to pass through. A second connecting rod (19) is provided on the outer side wall of the fixing column (16), and the second connecting rod (19) is connected to the outer side wall of the first guide tube (3) away from the end of the handle (2); and a first opening is provided on the side wall of the second guide tube (4) for the second connecting rod (19) to move.

4. The conveying device for coal mine transportation according to claim 3 is characterized in that: The pulling mechanism is a pull rope (14) connected to the side wall of the scraper (15) close to the handle (2); a through hole is provided on the side wall at the rear end of the carriage (1); an end of the pull rope (14) away from the scraper (15) is arranged outside the carriage (1) through the through hole; a second fixing rod (13) is provided on the outer side wall at the rear end of the carriage (1); and a first fixing rod (12) perpendicular to the second fixing rod (13) is provided at the end of the second fixing rod (13) away from the carriage (1).

5. The conveying device for coal mine transportation according to claim 4, characterized in that: A plurality of protrusions (6) are provided on the upper surfaces of the two side walls of the carriage (1), a first groove is provided on the lower surface of the first connecting rod (18), and when the fixing column (16) moves to a corresponding position of the protrusion (6), the top of the protrusion (6) can contact the bottom of the first groove.

6. The conveying device for coal mine transportation according to claim 1, characterized in that: The front end of the carriage (1) is provided with an opening, and the front ends of both side walls of the carriage (1) are hinged with front panels (7), and the opening can be opened and closed by rotating the two front panels (7).

7. The conveying device for coal mine transportation according to claim 6, characterized in that: The upper surfaces of the two front plates (7) are each provided with a second groove, a first U-shaped locking rod (8) is provided between the two second grooves, and the two front plates (7) can be locked by the cooperation between the two second grooves and the first U-shaped locking rod (8).

8. The conveying device for coal mine transportation according to claim 7, characterized in that: A third groove is provided on the upper surface of the front plate (7), and fourth grooves (9) are provided on the upper surfaces of the two side walls of the carriage (1). A second U-shaped locking rod is provided between the third groove and the fourth groove (9). After the front plate (7) is opened, it is fixed by the cooperation of the third groove, the fourth groove (9) and the second U-shaped locking rod.

9. The conveying device for coal mine transportation according to claim 4, characterized in that: There are two second fixing rods (13), and the two second fixing rods (13) are respectively arranged at two ends of the first fixing rod (12).

10. The conveying device for coal mine transportation according to any one of claims 1 to 9, characterized in that: The contact points between the scraper (15) and the inner wall of the carriage (1) are both made of rubber.

Images