Large automatic ore unloading device

Abstract

The utility model provides a large-scale automatic ore unloading device, and relates to the technical field of mine tunnel mine car equipment, the large-scale automatic ore unloading device comprises a curved rail side unloading type mine car, a mine car rail and an ore unloading rail, a groove is formed in the top of the ore unloading rail, a matched lower limiting rail is arranged in the groove, a connecting frame is fixedly installed on the back face of the lower limiting rail, and a connecting rod is fixedly installed on the connecting frame. And an upper limiting rail is fixedly mounted at the front end of the connecting frame. The lower limiting rail and the upper limiting rail are driven by the hydraulic telescopic rod to move synchronously, the movement track is dynamically matched with the turning angle of the car hopper in cooperation with accurate guiding of the arc-shaped guiding plate and the guiding hole, and accurate regulation and control of the turning angle are achieved; meanwhile, the car hopper is actively controlled to shake through reciprocating stretching and retracting of the hydraulic telescopic rod, the complex working conditions of high ore humidity, high viscosity and the like can be effectively adapted, and the discharging efficiency and operation reliability are remarkably improved; the whole structural design is reasonable, control is flexible, adaptability is high, and the automation degree and adaptability of ore unloading operation are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mine roadway and mine car equipment technology, and more specifically, to a large-scale automatic ore unloading device. Background Technology

[0002] In mining operations, the transportation and unloading of ore are crucial links in the production process. Currently, large mining cars used for underground or open-pit mine transportation mainly rely on fixed unloading stations such as tippers, or on self-unloading mining cars operated with manual assistance, for unloading.

[0003] For example, the "Automatic Ore Unloading Device" disclosed in Chinese Utility Model Patent (Publication No.: CN218231068U) includes a curved-rail side-discharging mine car, a mine car track, and an unloading platform. The mine car track passes through the unloading platform, and a curved unloading rail is provided on the unloading platform. The curved unloading rail includes an upper rail, a flat rail, and a lower rail, with a concave arc-shaped lower curved rail provided on the flat rail. The concave arc-shaped lower curved rail can cause the mine car to vibrate to a certain extent when the curved-rail side-discharging mine car is lifted by the unloading curved rail, avoiding the ore getting stuck during the unloading process and effectively improving the unloading efficiency. At the same time, the arc-shaped lower curved rail can effectively reduce the vibration when the mine car moves, avoiding damage to the mine car and the track.

[0004] Regarding the aforementioned technologies, this device has some shortcomings. In actual use, its ore unloading shaking mechanism mainly relies on the passive action of the curved lower track, lacking active control methods. It is difficult to effectively cope with complex working conditions such as high ore moisture and high viscosity, which can easily lead to ore jamming and poor unloading, affecting unloading efficiency and operational reliability.

[0005] Therefore, we have made improvements to this and proposed a large-scale automatic ore unloading device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a large-scale automatic ore unloading device, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A large-scale automatic ore unloading device includes a curved rail side-discharge mine car, a mine car track, and an unloading track. The top of the unloading track has a groove, and a matching lower limit rail is provided inside the groove. A connecting frame is fixedly installed on the back of the lower limit rail, and an upper limit rail is fixedly installed on the front end of the connecting frame. A rear plate is fixedly installed on the back of the unloading track, and a hydraulic telescopic rod is hinged to the top of the rear plate. The driving end of the hydraulic telescopic rod is hinged to the back of the connecting frame.

[0009] Several arc-shaped guide plates are fixedly installed at the bottom of the lower limit rail, and the arc-shaped guide plates penetrate the bottom of the inner wall of the groove. A limit component is provided at the top of the upper limit rail.

[0010] As a preferred technical solution of this application, the limiting component includes a plurality of limiting rods fixedly installed on the top of the upper limit rail. A support plate is fixedly installed on the top of the limiting rods. A lead screw is rotatably installed between the bottom of the support plate and the top of the upper limit rail. A driving component is provided on the top of the support plate. A movable seat is sleeved on the outer wall of the lead screw. A symmetrically distributed positioning plate is fixedly installed on the bottom of the movable seat. A positioning hole corresponding to the position and number of the positioning plate is opened on the top of the upper limit rail. The positioning hole is adapted to the positioning plate.

[0011] As a preferred technical solution of this application, the drive assembly includes a fixed frame fixedly installed on the top of the support plate, a worm gear rotatably installed inside the fixed frame, the top end of the lead screw passing through the support plate and extending into the interior of the fixed frame, a worm wheel fixedly installed at the top end of the lead screw, the worm gear meshing with the worm wheel, a servo motor fixedly installed on one side inside the fixed frame, and the drive end of the servo motor fixedly connected to one end of the worm gear.

[0012] As a preferred technical solution of this application, a protective cover is fixedly installed on the top of the support plate, and the drive component is located inside the protective cover.

[0013] As a preferred technical solution of this application, the positioning plate is provided with a threaded hole adapted to the lead screw, and the positioning plate is threadedly connected to the lead screw through the threaded hole.

[0014] As a preferred technical solution of this application, the movable seat is provided with sliding holes corresponding to the position and number of the limiting rods, and the movable seat is slidably connected to the limiting rods through the sliding holes provided thereon.

[0015] As a preferred technical solution of this application, the bottom of the inner wall of the groove is provided with guide holes corresponding to the position and number of the arc-shaped guide plate. The guide holes are slidably inserted into the arc-shaped guide plate, and the origin of the arc-shaped guide plate is adapted to the hinge point of the upper bucket of the curved rail side-discharge mine car.

[0016] As a preferred technical solution of this application, the top of the protective cover is provided with a number of heat dissipation holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] 1. Through the coordinated use of the unloading track, lower limit rail, rear plate, hydraulic telescopic rod, connecting frame, upper limit rail, arc guide plate, groove, and guide hole, the lower limit rail and upper limit rail are driven to move synchronously by the hydraulic telescopic rod. With the precise guidance of the arc guide plate and guide hole, the movement trajectory is dynamically matched with the tipping angle of the truck bed, achieving precise control of the tipping angle. At the same time, the reciprocating extension and retraction of the hydraulic telescopic rod actively controls the shaking of the truck bed, which can effectively adapt to complex working conditions such as high ore moisture and high viscosity, significantly improving unloading efficiency and operational reliability. The overall structural design is reasonable, the control is flexible, and the adaptability is strong, greatly improving the automation level and adaptability of the unloading operation.

[0020] 2. Through the coordinated use of the set limit components, servo motor, worm gear, limit rod, positioning plate, positioning hole, lead screw, movable seat, support plate, fixed frame, and worm gear, after the tipping wheel enters between the lower limit rail and the upper limit rail, the servo motor can be controlled to drive the worm gear to mesh with the worm wheel, causing the lead screw to rotate, so that the movable seat slides vertically along the limit rod, thereby driving the positioning plate to pass through the positioning hole and abut against both sides of the tipping wheel, achieving a firm positioning; effectively preventing the tipping wheel from shaking during the unloading process, significantly improving operational stability and safety. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of a large-scale automatic ore unloading device provided in this application;

[0022] Figure 2 A rear view structural schematic diagram of a large-scale automatic ore unloading device provided in this application;

[0023] Figure 3 A schematic diagram of the connection structure between the rear plate and the connecting frame in a large-scale automatic ore unloading device provided in this application;

[0024] Figure 4 This application provides a schematic diagram of the structure of the unloading track in a large-scale automatic unloading device;

[0025] Figure 5 This is a schematic diagram of the limiting component in a large-scale automatic ore unloading device provided in this application.

[0026] The image shows:

[0027] 1. Unloading track; 2. Lower limit rail; 3. Limiting component; 4. Protective cover; 5. Rear plate; 6. Hydraulic telescopic rod; 7. Connecting frame; 8. Upper limit rail; 9. Arc-shaped guide plate; 10. Groove; 11. Guide hole; 12. Servo motor; 13. Worm gear; 14. Limiting rod; 15. Positioning plate; 16. Positioning hole; 17. Lead screw; 18. Movable seat; 19. Support plate; 20. Fixed frame; 21. Worm gear. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Example 1

[0033] Please refer to Figures 1-5 A large-scale automatic ore unloading device includes a curved rail side-discharge mine car, a mine car track and an unloading track 1. The top of the unloading track 1 is provided with a groove 10. A matching lower limit rail 2 is provided inside the groove 10. A connecting frame 7 is fixedly installed on the back of the lower limit rail 2. An upper limit rail 8 is fixedly installed on the front end of the connecting frame 7. A rear plate 5 is fixedly installed on the back of the unloading track 1. A hydraulic telescopic rod 6 is hinged to the top of the rear plate 5. The driving end of the hydraulic telescopic rod 6 is hinged to the back of the connecting frame 7.

[0034] Several arc-shaped guide plates 9 are fixedly installed at the bottom of the lower limit rail 2. The arc-shaped guide plates 9 penetrate the bottom of the inner wall of the groove 10. A limit component 3 is provided at the top of the upper limit rail 8.

[0035] Furthermore, the bottom of the inner wall of the groove 10 is provided with guide holes 11 corresponding to the position and number of the arc-shaped guide plate 9. The guide holes 11 are slidably inserted into the arc-shaped guide plate 9, which can provide precise guidance for the movement of the lower limit rail 2. The origin of the arc-shaped guide plate 9 is matched with the hinge point of the upper bucket of the curved rail side-discharge mine car, ensuring that the movement trajectory is consistent with the tilting angle of the bucket, thereby improving the stability and control accuracy of the unloading process.

[0036] Example 2

[0037] The large-scale automatic ore unloading device provided in Embodiment 1 is further optimized. Specifically, the limiting component 3 includes several limiting rods 14 fixedly installed on the top of the upper limit rail 8. A support plate 19 is fixedly installed on the top of the limiting rod 14. A lead screw 17 is rotatably installed between the bottom of the support plate 19 and the top of the upper limit rail 8. A driving component is provided on the top of the support plate 19. A movable seat 18 is sleeved on the outer wall of the lead screw 17. A symmetrically distributed positioning plate 15 is fixedly installed on the bottom of the movable seat 18. A positioning hole 16 corresponding to the position and number of the positioning plate 15 is opened on the top of the upper limit rail 8. The positioning hole 16 is adapted to the positioning plate 15.

[0038] Furthermore, the drive assembly includes a fixed frame 20 fixedly mounted on the top of the support plate 19. A worm gear 21 is rotatably mounted inside the fixed frame 20. The top end of a lead screw 17 passes through the support plate 19 and extends into the interior of the fixed frame 20. A worm wheel 13 is fixedly mounted on the top end of the lead screw 17, and the worm gear 21 meshes with the worm wheel 13. A servo motor 12 is fixedly mounted on one side inside the fixed frame 20, and the drive end of the servo motor 12 is fixedly connected to one end of the worm gear 21. The servo motor 12 drives the worm gear 21 to rotate, and the meshing transmission between the worm gear 21 and the worm wheel 13 drives the lead screw 17 to rotate. The overall structure is compact and the transmission is smooth. Moreover, the worm gear mechanism has a self-locking characteristic, which can effectively prevent the lead screw 17 from rotating in the opposite direction, thereby ensuring the stability of the positioning plate 15 in the limited position.

[0039] Furthermore, a protective cover 4 is fixedly installed on the top of the support plate 19, and the drive assembly is located inside the protective cover 4. Encapsulating the drive assembly inside it can effectively prevent dust, impact, and provide isolation protection, significantly improving the safety and service life of the equipment.

[0040] Furthermore, the positioning plate 15 has a threaded hole that matches the lead screw 17, and the positioning plate 15 is threadedly connected to the lead screw 17 through the threaded hole.

[0041] Furthermore, the movable seat 18 is provided with sliding holes corresponding to the position and number of the limiting rods 14. The movable seat 18 is slidably connected to the limiting rods 14 through the sliding holes. This effectively ensures the stability and guiding accuracy of the movable seat 18 during vertical movement, and avoids deviation or jamming.

[0042] Furthermore, the top of the protective cover 4 is equipped with several heat dissipation holes. This effectively promotes the dissipation of internal heat, preventing the drive components from being affected by excessive temperature rise, thereby ensuring the long-term stability and reliability of the equipment.

[0043] The usage process of the large-scale automatic ore unloading device provided by this utility model is as follows:

[0044] In operation, the mine car track runs through the unloading track 1. The curved-rail side-discharge mine car drives into the unloading track 1 along the mine car track. Its tipping wheel is guided by the unloading track 1 into the lower limit rail 2 and is precisely positioned between the lower limit rail 2 and the upper limit rail 8. Then, the hydraulic telescopic rod 6 is activated. Its drive end drives the lower limit rail 2 and the upper limit rail 8 to move simultaneously through the connecting frame 7. When the lower limit rail 2 moves, the arc-shaped guide plate 9 slides along the guide hole 11 on the unloading track 1. Through the cooperation of the arc-shaped guide plate 9 and the guide hole 11, the movement trajectory of the lower limit rail 2 and the upper limit rail 8 is precisely guided, ensuring that the tilting angle of the curved-rail side-discharge mine car bucket is dynamically matched. As the drive end of the hydraulic telescopic rod 6 continues to extend, the tipping wheel drives the bucket to tilt upward. Its tilting angle is precisely controlled by the extension and retraction of the hydraulic telescopic rod 6. The bucket shaking can be actively controlled by the reciprocating extension and retraction of the drive end, effectively adapting to complex working conditions such as high ore moisture and high viscosity, and significantly improving unloading efficiency and operational reliability.

[0045] When the tipping wheels of the curved-rail side-discharge mine car are limited by the upper limit rail 8 and the lower limit rail 2, the servo motor 12 on the limit assembly 3 can be started. Its drive end drives the worm 21 to rotate. Through the meshing transmission between the worm 21 and the worm wheel 13, the worm wheel 13 drives the lead screw 17 to rotate. With the help of the threaded engagement between the lead screw 17 and the movable seat 18, and the sliding guide between the movable seat 18 and the limit rod 14, the movable seat 18 smoothly drives the positioning plate 15 to move vertically, so that the two positioning plates 15 pass through the positioning holes 16 on the upper limit rail 8 and enter the lower limit rail. The lower limit rail 2 is precisely positioned between the upper limit rail 8 and the upper limit rail 8, thus ensuring the positional stability of the tipping wheel when the hydraulic telescopic rod 6 drives the mine car to unload ore, preventing it from shaking between the lower limit rail 2 and the upper limit rail 8, thereby significantly improving the safety of the unloading process. After unloading is completed, the control positioning plate 15 is reset, and the lower limit rail 2 is reset to the groove 10 at the top of the unloading track 1. The curved rail side unloading mine car can then be guided smoothly back to the mine car track via the unloading track 1.

[0046] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A large-scale automatic ore unloading device, characterized in that, The system includes a curved track side-discharge mine car, a mine car track and an unloading track (1). The top of the unloading track (1) is provided with a groove (10). A matching lower limit rail (2) is provided inside the groove (10). A connecting frame (7) is fixedly installed on the back of the lower limit rail (2). An upper limit rail (8) is fixedly installed on the front end of the connecting frame (7). A rear plate (5) is fixedly installed on the back of the unloading track (1). A hydraulic telescopic rod (6) is hinged to the top of the rear plate (5). The driving end of the hydraulic telescopic rod (6) is hinged to the back of the connecting frame (7). The bottom of the lower limit rail (2) is fixedly equipped with several arc-shaped guide plates (9), which penetrate the bottom of the inner wall of the groove (10). The top of the upper limit rail (8) is provided with a limit component (3).

2. A large automatic mine unloading device according to claim 1, characterized in that, The limiting component (3) includes several limiting rods (14) fixedly installed on the top of the upper limit rail (8). A support plate (19) is fixedly installed on the top of the limiting rod (14). A lead screw (17) is rotatably installed between the bottom of the support plate (19) and the top of the upper limit rail (8). A driving component is provided on the top of the support plate (19). A movable seat (18) is sleeved on the outer wall of the lead screw (17). A symmetrically distributed positioning plate (15) is fixedly installed on the bottom of the movable seat (18). A positioning hole (16) corresponding to the position and number of the positioning plate (15) is opened on the top of the upper limit rail (8). The positioning hole (16) is adapted to the positioning plate (15).

3. A large automatic mine unloading device according to claim 2, characterized in that The drive assembly includes a fixed frame (20) fixedly mounted on the top of the support plate (19). A worm gear (21) is rotatably mounted inside the fixed frame (20). The top end of the lead screw (17) passes through the support plate (19) and extends into the interior of the fixed frame (20). A worm wheel (13) is fixedly mounted on the top end of the lead screw (17). The worm gear (21) meshes with the worm wheel (13). A servo motor (12) is fixedly mounted on one side inside the fixed frame (20). The drive end of the servo motor (12) is fixedly connected to one end of the worm gear (21).

4. A large automatic mine unloading device according to claim 3, characterized in that A protective cover (4) is fixedly installed on the top of the support plate (19), and the drive assembly is located inside the protective cover (4).

5. A large automatic mine unloading device according to claim 2, characterized in that, The positioning plate (15) has a threaded hole that matches the lead screw (17), and the positioning plate (15) is threadedly connected to the lead screw (17) through the threaded hole.

6. A large automatic mine unloading device according to claim 2, characterized in that, The movable seat (18) has sliding holes corresponding to the position and number of the limiting rod (14), and the movable seat (18) is slidably connected to the limiting rod (14) through the sliding holes.

7. A large automatic mine unloading device according to claim 1, characterized in that, The bottom of the inner wall of the groove (10) is provided with guide holes (11) corresponding to the position and number of the arc-shaped guide plate (9). The guide holes (11) are slidably inserted into the arc-shaped guide plate (9). The origin of the arc-shaped guide plate (9) is adapted to the hinge point of the upper bucket of the curved rail side-discharge mine car.

8. A large automatic mine unloading device according to claim 4, characterized in that, The top of the protective cover (4) is provided with several heat dissipation holes.

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