Crawler-mounted twin-drum mining machine and stripping mechanism for surface mining machine

Abstract

The utility model provides a kind of open pit mining machine unloading mechanism, including machine body, the unloading mechanism of the unloading end of machine body;Still include the rotary frame between machine body and unloading structure, rotary frame has the first support part of being supported to the top of machine body transversely rotatable, and the second support part that extends to the feed end of unloading mechanism, the feed end of unloading mechanism is connected with second support part;Rotary frame still extends the hoisting device connected to the discharge end of unloading mechanism on it.Unloading device is supported by rotary frame in the unloading end of machine body, and can be while receiving the material output by mining machine, through rotary frame adjustment the discharging direction of unloading device, eliminates self-moving type transfer machine, simple structure, small space occupation.The utility model further provides a kind of crawler-type walking double-drum mining machine.

Description

Technical Field

[0001] This utility model relates to the field of mining machine technology, and more specifically, to a tracked double-drum mining machine and an unloading mechanism for an open-pit mining machine. Background Technology

[0002] Open-pit coal mining still primarily relies on intermittent mining techniques combining single-bucket excavators and truck transportation. Before mining, drilling and blasting are required, but the resulting coal particles are too large and must be further crushed by a crusher. This mining method is relatively simple, but it suffers from low production efficiency, poor safety, high dust levels, and is detrimental to the environment. Transportation costs are extremely high, especially in recent years with international tensions and rising fuel prices, which have significantly increased mining costs for companies.

[0003] Continuous mining has been achieved to some extent through the use of bucket wheel excavators and horizontal roller open-pit mines. However, bucket wheel excavators have limited cutting capabilities, are only suitable for mining soft rock and soft coal, have poor flexibility, and are not adaptable to climatic conditions. They are mostly imported, resulting in high costs. Horizontal roller open-pit mines, while having strong cutting capabilities, have low cutting efficiency and low production capacity, which cannot meet the production capacity requirements of open-pit mines. Therefore, neither of these two types of equipment has been widely used in open-pit mines in China.

[0004] Existing technologies for continuous transport mining in open-pit mines employ a combination of open-pit mining machines, self-propelled transfer conveyors, and moving belt conveyors. Due to the large size and number of equipment, as well as their large lateral dimensions (transfer direction), this method requires a wide platform to accommodate the equipment in the open-pit mine. This disrupts the overall mine layout, necessitating adjustments to the width of other platforms or benches. In turn, the width of these platforms or benches affects the layout of other mining faces and the passage of transport vehicles.

[0005] Therefore, how to reduce the space occupied by continuous mining processes is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a tracked double-drum mining machine and an open-pit mining machine unloading mechanism to reduce the space occupied by continuous mining processes.

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

[0008] An unloading mechanism for an open-pit mining machine, wherein the unloading end of the machine body is equipped with an unloading mechanism;

[0009] A rotating frame is provided between the machine body and the unloading mechanism. The rotating frame has a first support part that can be rotatably supported on the top of the machine body, and a second support part that extends to the feed end of the unloading mechanism. The feed end of the unloading mechanism is connected to the second support part.

[0010] The rotating frame also extends a hoisting device that is connected to the discharge end of the unloading mechanism.

[0011] Preferably, in the above-mentioned unloading mechanism of the open-pit mining machine, the unloading mechanism includes a truss mechanism extending along the material conveying direction, and a transfer belt conveyor disposed within the truss mechanism, wherein the pitch height of the transfer belt conveyor is adjustable.

[0012] Preferably, in the above-mentioned unloading mechanism of the open-pit mining machine, a body connecting seat is fixedly installed on the machine body, and the first support is rotatably installed on the body connecting seat.

[0013] Preferably, in the above-mentioned unloading mechanism of the open-pit mining machine, a slewing bearing is arranged on the top of the machine body connecting seat, and the first support is installed on the slewing bearing.

[0014] Preferably, in the above-mentioned unloading mechanism of the open-pit mining machine, a transverse conveyor is provided at the unloading end of the machine body, and a rotary shaft is provided at the lower part of the transverse conveyor to support the rotation of the truss mechanism.

[0015] Preferably, in the above-mentioned open-pit mining machine unloading mechanism, the hoisting device includes a cable-stayed steel cable for hoisting the discharge end of the truss mechanism, and a length adjustment device for adjusting the hoisting length of the cable-stayed steel cable.

[0016] Preferably, in the above-mentioned unloading mechanism of the open-pit mining machine, the length adjustment device is a variable amplitude hydraulic cylinder.

[0017] Preferably, in the above-mentioned unloading mechanism of the open-pit mining machine, the slewing bearing is a worm gear slewing bearing.

[0018] Preferably, the above-mentioned open-pit mining machine unloading mechanism includes a machine body equipped with a tracked walking mechanism, a transverse conveyor for conveying the materials collected by the machine body, and the machine body is further provided with an open-pit mining machine unloading mechanism as described above located at the output end of the transverse conveyor.

[0019] Preferably, the above-mentioned open-pit mining machine unloading mechanism further includes a movable belt conveyor located at the discharge end of the unloading structure and arranged in parallel with the walking direction of the machine body, and a track-type hopper car that travels above the movable belt conveyor to transport the material output from the unloading structure.

[0020] The unloading mechanism for an open-pit mining machine provided by this utility model includes a machine body and an unloading mechanism located at the unloading end of the machine body; it also includes a rotating frame located between the machine body and the unloading mechanism. The rotating frame has a first support part that is laterally rotatably supported on the top of the machine body, and a second support part that extends to the feed end of the unloading mechanism. The feed end of the unloading mechanism is connected to the second support part. A hoisting device extends from the rotating frame and connects to the discharge end of the unloading mechanism. The unloading mechanism is further arranged at the unloading end of the open-pit mining machine body. The rotating frame is installed on the machine body and is mounted on the top of the machine body through the first support part. The rotating frame is arranged to rotate. The rotating frame is connected to the feed end of the unloading mechanism through the second support part and to the discharge end of the unloading mechanism through the hoisting device. This allows the entire unloading device to be supported by the rotating frame at the unloading end of the machine body. While receiving the output material from the mining machine, the discharge direction of the unloading device can be adjusted by the rotating frame, eliminating the need for a self-propelled transfer machine. The structure is simple and occupies little space. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 The structural layout diagram of the unloading mechanism of the open-pit mining machine provided by this utility model. Detailed Implementation

[0023] This utility model discloses a tracked double-drum mining machine and an open-pit mining machine unloading mechanism, which reduces the space occupied by continuous mining processes.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 As shown, Figure 1 The structural layout diagram of the unloading mechanism of the open-pit mining machine provided by this utility model.

[0026] This application provides an unloading mechanism for an open-pit mining machine, including a machine body 1 and an unloading mechanism disposed at the unloading end of the machine body 1; it also includes a rotating frame 2 disposed between the machine body 1 and the unloading mechanism, the rotating frame 2 having a first support part 21 that is laterally rotatably supported on the top of the machine body, and a second support part 22 extending to the feeding end of the unloading mechanism, the feeding end of the unloading mechanism being connected to the second support part 22; a hoisting device extending from the rotating frame 2 and connected to the discharge end of the unloading mechanism is also provided. The unloading end of the body 1 of the open-pit mining machine is further arranged with an unloading mechanism. A rotating frame 2 is installed on the body 1. The rotating frame 2 is installed on the top of the body 1 through the first support 21. The rotating frame 2 is arranged to rotate. The rotating frame 2 is connected to the feed end of the unloading mechanism through the second support 22, and is connected to the discharge end of the unloading device through the hoisting device. This makes the unloading device as a whole supported by the rotating frame on the unloading end of the body. At the same time as receiving the output material of the mining machine, the discharge direction of the unloading device can be adjusted by the rotating frame. This eliminates the need for a self-moving transfer machine, and the structure is simple and occupies little space.

[0027] In a specific embodiment of this case, the unloading structure includes a truss mechanism 7 extending along the material conveying direction, and a transfer conveyor belt 8 disposed within the truss mechanism 7. The pitch height of the transfer conveyor belt 8 is adjustable. The unloading structure is arranged at the unloading end of the open-pit mining machine to further convey the material collected by the open-pit mining machine. Since the unloading mechanism is arranged on the machine body 1 via a rotating frame 2, and is truss-lifted via the support structure and hoisting structure on the rotating frame 2, the unloading structure is extended using the truss mechanism 7 to ensure its load-bearing capacity. The transfer conveyor belt 8 is arranged inside the truss mechanism 7 for continuous material conveying. The truss mechanism 7 increases the structural strength of the unloading mechanism and improves its conveying capacity.

[0028] In one specific embodiment of this case, a fuselage connecting seat 12 is fixedly installed on the body 1, and a first support portion 21 is rotatably installed on the fuselage connecting seat 12. The rotating frame 2 is connected to the body 1 of the open-pit mining machine, and the fuselage connecting seat 12 extends from the body 1. The fuselage connecting seat 12 can be configured as a fuselage connecting seat 12 extending from the frame of the open-pit mining machine, thereby ensuring the load-bearing capacity of the body. The first support portion 21 of the rotating frame 2 is rotatably installed on the fuselage connecting seat 12, and the body 1 of the open-pit mining machine serves as the counterweight of the truss mechanism 7, thereby improving the load-bearing capacity of the truss mechanism 7.

[0029] In one specific embodiment of this case, a slewing bearing 3 is arranged on the top of the fuselage connecting seat 12, and the first support part 21 is mounted on the slewing bearing 3. The rotating frame 2 is mounted on the machine body connecting seat 12. The rotating frame 2 is connected to the feed end of the truss mechanism 7 through the second support part 22 and to the discharge end of the truss mechanism 7 through the hoisting device. The first support part 21 of the rotating frame 2 and the machine body connecting seat 12 serve as a load-bearing fulcrum and a rotation fulcrum, and need to meet the load-bearing capacity for material conveying. A slewing bearing 3 is set between the rotating frame 2 and the machine body connecting seat 12. Preferably, a slewing bearing with a worm gear is used. The worm gear slewing bearing is usually called a slewing gear, slewing bearing, worm wheel or worm drive. It is a complete, ready-to-install system consisting of ball or roller slewing ring bearings, a transmission system and a fully enclosed housing. At the same time, hydraulic or electric motors, brakes, planetary gearboxes, corrosion protection and many other options can be customized to meet the working conditions of open-pit mining machines. It can also drive the truss to rotate through the power system arranged inside to meet the requirements of lateral material conveying.

[0030] In a specific embodiment of this case, a transverse conveyor 13 is provided at the unloading end of the machine body 1, and a rotary shaft 11 is provided at the lower part of the transverse conveyor 13 to support the rotation of the truss mechanism. When the open-pit mining machine is performing mining operations, it cuts the material by moving laterally, and the cut material is simultaneously transported out from its unloading end. That is, the transverse conveyor 13 is arranged inside the open-pit mining machine, and the unloading end of the transverse conveyor 13 is further arranged with a truss mechanism 7. Since the truss mechanism 7 is driven to rotate by the rotary shaft 11, it is necessary to ensure a continuous conveying connection between the feeding end of the truss mechanism 7 and the unloading end of the transverse conveyor 13. The rotary shaft 11 is set between the transverse conveyor 13 and the truss mechanism 7, so that when the truss mechanism 7 is driven to rotate by the rotating frame 2, the truss mechanism 7 and the transverse conveyor 13 are always supported by the rotary shaft 11, ensuring the continuity of material conveying and the stability of the support structure.

[0031] In a specific embodiment of this case, the hoisting device includes a cable 5 for hoisting the discharge end of the truss mechanism 7, and a length adjustment device for adjusting the hoisting length of the cable 5. Preferably, the length adjustment device is a luffing cylinder 4. The luffing cylinder 4 is typically composed of a cylinder body, a cylinder piston, a cylinder rod, a cylinder head, a thrust plate, and other components. The cylinder body is the part that bears the internal pressure and is filled with hydraulic oil. The control of the object is achieved through the pushing and pulling motion of the cylinder piston. In this application, the luffing cylinder is arranged on the top of the rotating frame and connected to the cable 5 at its extended end. The cable 5 is connected to the discharge end of the truss structure. By adjusting the extended length of the luffing cylinder, the hoisting length of the truss structure is adjusted, thereby adjusting the angle of the truss mechanism in the height direction, that is, adjusting the conveying pitch angle of the conveyor belt within the truss mechanism.

[0032] Furthermore, a balance frame 6 is also provided between the cable-stayed steel cable 5 and the truss mechanism 7. Since the span of the truss mechanism 7 is relatively long, the excessively long cable-stayed steel cable 5 will cause the hoisting of the truss mechanism 7 to be unstable. By setting up the balance frame 6, including the front support and the rear support, which are connected in the front and rear directions of the truss mechanism 7, the front support, the rear support and the truss mechanism 7 form a triangular support structure, which is connected to the balance frame 6 by the cable-stayed steel cable 5, thereby improving stability.

[0033] Based on the unloading mechanism of the open-pit mining machine provided in the above embodiments, this utility model also provides a tracked walking double-drum mining machine, including a body equipped with a tracked walking mechanism, a transverse conveyor for conveying the material collected by the body, and the output end of the transverse conveyor on the tracked walking double-drum mining machine is equipped with the unloading mechanism of the open-pit mining machine provided in the above embodiments.

[0034] Since the tracked double-drum mining machine adopts the unloading mechanism of the open-pit mining machine described in the above embodiment, please refer to the above embodiment for the beneficial effects brought by the unloading mechanism of the open-pit mining machine.

[0035] This tracked double-drum mining machine also includes a movable belt conveyor 10 located at the discharge end of the unloading structure and arranged parallel to the walking direction of the machine 1, and a track-mounted hopper car 14 that travels above the movable belt conveyor 10 to transport the material output from the unloading structure. The position of the movable belt conveyor 10 is adjustable to meet the position adjustment requirements of the tracked double-drum mining machine during mining. The track-mounted hopper car 14 is installed on the movable belt conveyor 10, moves synchronously with the tracked double-drum mining machine, receives the material fed in by the truss device, and transports it to the movable belt conveyor for conveying.

[0036] By adding an additional unloading mechanism at the rear of the horizontal conveyor of the open-pit mining machine, the self-propelled transfer machine is eliminated. One end of the unloading mechanism is connected to the open-pit mining machine through the machine body connecting seat, rotating frame, etc., and the other end unloads the material onto the movable belt conveyor through the unloading hopper. The unloading mechanism can rotate left and right and change up and down, which can adapt to the changes in distance between the open-pit mining machine and the movable belt conveyor after the cutting machine advances, making the transportation and transfer process simpler and more efficient.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material unloading mechanism for an open-pit mining machine, characterized in that, The unloading end of the machine body is equipped with an unloading mechanism; A rotating frame is provided between the machine body and the unloading mechanism. The rotating frame has a first support part that can be rotatably supported on the top of the machine body, and a second support part that extends to the feed end of the unloading mechanism. The feed end of the unloading mechanism is connected to the second support part. The rotating frame also extends a hoisting device that is connected to the discharge end of the unloading mechanism.

2. The unloading mechanism of the open-pit mining machine according to claim 1, characterized in that, The unloading mechanism includes a truss mechanism extending along the material conveying direction, and a transfer belt conveyor disposed within the truss mechanism, wherein the pitch height of the transfer belt conveyor is adjustable.

3. The unloading mechanism for an open-pit mining machine according to claim 2, characterized in that, A fuselage connecting seat is fixedly installed on the body, and the first support is rotatably mounted on the fuselage connecting seat.

4. The unloading mechanism for an open-pit mining machine according to claim 3, characterized in that, A slewing bearing is arranged on the top of the fuselage connecting seat, and the first support is mounted on the slewing bearing.

5. The unloading mechanism for an open-pit mining machine according to claim 4, characterized in that, The unloading end of the machine body is equipped with a transverse conveyor, and the lower part of the transverse conveyor is equipped with a rotary shaft to support the rotation of the truss mechanism.

6. The unloading mechanism for an open-pit mining machine according to any one of claims 4 or 5, characterized in that, The hoisting device includes a cable-stayed steel cable for hoisting the discharge end of the truss mechanism, and a length adjustment device for adjusting the hoisting length of the cable-stayed steel cable.

7. The unloading mechanism for an open-pit mining machine according to claim 6, characterized in that, The length adjustment device is a variable amplitude hydraulic cylinder.

8. The unloading mechanism for an open-pit mining machine according to claim 4, characterized in that, The slewing bearing is a worm gear slewing bearing.

9. A tracked double-drum mining machine, characterized in that, The invention includes a body equipped with a tracked walking mechanism, a transverse conveyor for conveying materials collected by the body, and an open-pit mining machine unloading mechanism as described in any one of claims 1-8 located at the output end of the transverse conveyor.

10. The tracked double-drum mining machine according to claim 9, characterized in that, It also includes a movable belt conveyor located at the discharge end of the unloading structure and arranged in parallel with the traveling direction of the machine body, and a track-type hopper car traveling above the movable belt conveyor to transport the material output from the unloading structure.

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