An unattended bucket wheel machine with automatic coal stacking and taking function

Abstract

The application discloses an unattended bucket wheel machine with automatic coal stacking and taking functions, which comprises a crane frame, a transmission mechanism arranged on the crane frame and used for transmitting coal materials in a coal yard, a yard monitoring system arranged above the crane frame, the yard monitoring system being used for monitoring a coal pile in the coal yard in real time through a three-dimensional probe, a bucket wheel ring frame rotatably arranged on one side of the crane frame, a reduction gear base fixed on the crane frame, an output end of the reduction gear base being fixed with the bucket wheel ring frame, adjusting buckets distributed on the bucket wheel ring frame, and an outer rotation adjusting assembly installed on the bucket wheel ring frame, one end of the outer rotation adjusting assembly being connected with each adjusting bucket.

Description

Technical Field

[0001] This invention belongs to the technical field of coal mine transportation equipment, specifically an unmanned bucket wheel excavator with automatic coal stacking and reclaiming function. Background Technology

[0002] Currently, the research and application of intelligent monitoring systems for safe construction during the infrastructure phase of most thermal power plants fully utilize 5G technology to build 5G Internet of Things (IoT) systems and combine them with information technologies such as cloud computing, big data, and mobile internet to construct comprehensive intelligent construction site management platforms. In coal yard transportation, bucket wheel excavators are one of the core pieces of equipment, integrating stacking and reclaiming. Existing technologies require multiple drivers for manually operated bucket wheel excavators, resulting in high labor costs. Furthermore, the harsh working environment poses health risks with prolonged operation. Additionally, the single operating mode of bucket wheel excavators makes continuous operation difficult without operators. Therefore, those skilled in the art have developed an unmanned bucket wheel excavator with automatic stacking and reclaiming capabilities to address the problems mentioned in the background. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: an unattended bucket wheel excavator with automatic coal stacking and reclaiming function, comprising:

[0004] Crane frame;

[0005] A transmission mechanism, mounted on the crane frame, is used to transmit coal from the coal yard;

[0006] The stockpile monitoring system is installed above the crane frame. The stockpile monitoring system uses three-dimensional probes to scan and monitor the coal piles in the coal plant in real time.

[0007] The bucket wheel ring frame is rotatably mounted on one side of the crane frame;

[0008] A reduction gear seat is fixed on the crane frame, and the output end of the reduction gear seat is fixed to the bucket wheel ring frame;

[0009] Adjustable bucket bodies, distributed on the bucket wheel ring frame; and

[0010] An external adjustment assembly is installed on the bucket wheel ring frame, and one end of the external adjustment assembly is connected to each of the adjustment buckets.

[0011] Furthermore, preferably, the adjusting bucket body includes:

[0012] Fixed shaft brackets are circumferentially distributed on the bucket wheel ring frame;

[0013] Two sliding sleeves are arranged in parallel and slidably mounted on the fixed shaft bracket. An inner spring is provided between the sliding sleeve and the fixed shaft bracket.

[0014] The bucket is provided in a one-to-one correspondence with each of the sliding sleeves, and one side of the bucket is rotatably connected to the sliding sleeve;

[0015] A shaft tube frame is coaxially fixed to the bucket wheel ring frame, and multiple guide members are axially slidably arranged on the shaft tube frame; and

[0016] The telescopic adjustment rod is vertically rotatably connected to the guide. A ball bearing is fixed on one side of the bucket, and one end of the telescopic adjustment rod is rotatably connected to the ball bearing.

[0017] Furthermore, preferably, the guide can drive each bucket to perform asynchronous axial adjustment under independent sliding, and the deflection angle of the bucket is between 0° and 25°.

[0018] Furthermore, preferably, the external modulation assembly includes:

[0019] An inner sealing cylinder is circumferentially distributed within the shaft tube frame. A plunger is slidably disposed within the inner sealing cylinder, and the plunger is connected to the guide component in the adjusting bucket body via a support rod.

[0020] A limiting spring is disposed between the inner sealing cylinder and the plunger; and

[0021] The air pressure plug is slidably disposed within the inner sealing cylinder.

[0022] Furthermore, as a preferred option, it also includes:

[0023] A shaft disc is disposed inside the shaft tube frame. A connecting disc is rotatably disposed on one side of the shaft disc. The connecting disc is connected to the pneumatic plug through multiple hinge rods.

[0024] A drive motor is fixed on the shaft tube frame, and a mounting guide plate is fixed to the output end of the drive motor. The mounting guide plate is fixed to the shaft disc by multiple rods.

[0025] Furthermore, as a preferred embodiment, the rod frame is configured as a two-section telescopic structure, and each rod frame drives the shaft disk to deflect relative to the mounting guide plate during telescopic movement, with the deflection angle of the shaft disk ranging from -15° to 15°.

[0026] Furthermore, preferably, the drive motor is capable of driving the shaft disk to rotate continuously or remain stationary during operation or when not in operation.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] This invention enables unmanned operation of bucket wheel excavators based on 3D scanning modeling technology, and achieves intelligent coal loading based on coal blending schemes automatically generated by big data technology. The crane frame can control and adjust the bucket to approach the coal pile through lifting, rotation, and walking actions. The adjusted bucket, in conjunction with the external adjustment components, can perform multi-mode operations to ensure safe operation based on the height and density of the coal pile, thereby improving the efficiency and quality of coal stacking and extraction. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the adjusting bucket in this invention;

[0031] Figure 3 This is a schematic diagram of the external modulation assembly in this invention;

[0032] In the diagram: 1. Crane frame; 11. Bucket wheel ring frame; 12. Reduction gear seat; 13. Transmission mechanism; 2. Adjustable bucket body; 21. Fixed shaft frame; 22. Sliding sleeve; 23. Bucket; 24. Guide; 25. Shaft tube frame; 26. Telescopic adjustment rod; 27. Ball shaft component; 3. External rotation adjustment assembly; 31. Shaft disc; 32. Connecting disc; 33. Inner sealing cylinder; 34. Plunger; 35. Air pressure plug; 36. Drive motor; 37. Mounting guide plate. Detailed Implementation

[0033] Please see Figure 1-3 In this embodiment of the invention, an unmanned bucket wheel excavator with automatic coal stacking and reclaiming function includes:

[0034] Crane frame 1;

[0035] The transmission mechanism 13 is mounted on the crane frame 1 and is used to transmit coal from the coal yard.

[0036] A stockpile monitoring system (not shown in the figure) is installed above the crane frame 1. The stockpile monitoring system uses a three-dimensional probe to scan and monitor the coal piles in the coal plant in real time.

[0037] The bucket wheel ring frame 11 is rotatably mounted on one side of the crane frame 1;

[0038] The reduction gear seat 12 is fixed on the crane frame 1, and the output end of the reduction gear seat 12 is fixed to the bucket wheel ring frame 11;

[0039] Adjustable bucket bodies 2 are distributed on the bucket wheel ring frame 11; and

[0040] The external adjustment component 3 is installed on the bucket wheel ring frame 11. One end of the external adjustment component 3 is connected to each of the adjustment bucket bodies 2. The crane frame can cooperate with the telescopic arm, slewing mechanism, etc. to realize the three-dimensional spatial movement of the bucket wheel and various coal taking actions. The telescopic arm can control the working range of the bucket wheel machine, the slewing mechanism can make the bucket wheel rotate in the horizontal direction, and the crane frame can control the height and angle of the bucket wheel (all of the above are existing technologies and will not be described in detail here). When stacking and taking coal, the adjustment bucket body cooperates with the external adjustment component to carry out multiple modes of operation according to the coal pile height, coal pile density, etc., to ensure safe operation.

[0041] In this embodiment, the adjusting bucket 2 includes:

[0042] Fixed shaft brackets 21 are circumferentially distributed on the bucket wheel ring frame 11;

[0043] There are two sliding sleeves 22 arranged in parallel and slidably mounted on the fixed shaft bracket 21. An inner spring is provided between the sliding sleeve 22 and the fixed shaft bracket 21.

[0044] The bucket 23 is provided in a one-to-one correspondence with each of the sliding sleeves 22, and one side of the bucket 23 is rotatably connected to the sliding sleeve 22;

[0045] A shaft tube frame 25 is coaxially fixed on the bucket wheel ring frame 11, and a plurality of guide members 24 are axially slidably arranged on the shaft tube frame 25; and

[0046] The telescopic adjustment rod 26 is vertically rotatably connected to the guide member 24. A ball shaft member 27 is fixed on one side of the bucket 23, and one end of the telescopic adjustment rod 26 is universally rotatably connected to the ball shaft member 27.

[0047] In a preferred embodiment, the guide 24 can drive each of the buckets 23 to perform asynchronous axial adjustment under independent sliding. The deflection angle of the buckets 23 is between 0° and 25°. Specifically, for automatic coal stacking and reclaiming of coal piles with medium or high stack heights (i.e., coal pile height greater than 3m), the adjusting bucket can prioritize tunneling coal reclaiming operations and excavate a coal roadway outside the coal pile. Then, it gradually digs inward from the side within the coal roadway. In this process, each guide can perform axial fine adjustment of the buckets, making each bucket distributed in a stepped manner. This allows for gradual coal reclaiming by the buckets when the coal pile is high and the coal seam is deep, improving the safety of the coal stacking and reclaiming operation and preventing collapse. The buckets are also set to perform synchronous deflection adjustment under the drive of the telescopic adjustment rod, realizing material feeding and reclaiming operations with good coal reclaiming effect, suitable for coal yards with different coal pile densities.

[0048] In this embodiment, the external modulation component 3 includes:

[0049] The inner sealing cylinder 33 is circumferentially distributed within the shaft tube frame 25. A plunger 34 is slidably disposed within the inner sealing cylinder 33. The plunger 34 is connected to the guide member 24 in the adjusting bucket body 2 via a support rod.

[0050] A limiting spring is disposed between the inner sealing cylinder 33 and the plunger 34; and

[0051] The air pressure plug 35 is slidably disposed within the inner sealing cylinder 33. The air pressure plug can push the plunger to make axial displacement under displacement adjustment so that the guide in the bucket can be adjusted accordingly.

[0052] This embodiment also includes:

[0053] A shaft disc 31 is disposed inside the shaft tube frame 25. A connecting disc 32 is rotatably disposed on one side of the shaft disc 31. The connecting disc 32 is connected to the air pressure plug 35 through multiple hinge rods.

[0054] A drive motor 36 is fixed on the shaft tube frame 25. A mounting guide plate 37 is fixed to the output end of the drive motor 36. The mounting guide plate 37 is fixed to the shaft disk 31 through multiple rods 38.

[0055] In this embodiment, the rod frame 38 is configured as a two-section telescopic structure. Each rod frame 38 drives the shaft disk 31 to deflect relative to the mounting guide plate 37 during telescopic movement. The deflection angle of the shaft disk 31 is in the range of -15° to 15°. In particular, when the shaft disk deflects under the telescopic adjustment of each rod frame, the buckets on each fixed shaft frame can be distributed at different points, and multiple buckets can cooperate to form a stepped arrangement, so that they can be dug gradually from the side of the coal pile in the coal roadway.

[0056] In a preferred embodiment, the drive motor 36 can drive the shaft disk 31 to rotate continuously or remain stationary during operation or non-operation. In particular, when the shaft disk is relatively deflected, the buckets can cooperate to form a stepped arrangement. At this time, the bucket wheel ring frame can perform coal extraction through the buckets while rotating. When the drive motor is rotating, the buckets on the fixed shaft frame can continuously adjust their axial reciprocating displacement, thereby achieving displacement reset during coal extraction. This allows the buckets at different points on the bucket wheel ring frame to push materials during coal extraction when extracting coal from medium- and high-density coal piles, thereby quickly cutting into the coal pile from the side while ensuring coal extraction safety.

[0057] Specifically, after the stockpile monitoring system scans the coal pile outline of the coal plant using a 3D probe, the crane frame can work with the telescopic boom and slewing mechanism to move the bucket wheel in three-dimensional space. For coal piles of different heights and density, the bucket body can be adjusted to achieve digging (i.e., digging on the top of the coal pile) or tunneling coal removal (i.e., digging a coal roadway on the outside of the coal pile, and then gradually digging inward from the side within the coal roadway). In this process, the external adjustment component can control the buckets to form a stepped arrangement, ensuring coal removal safety and quickly cutting into the coal pile from the side, which is suitable for coal piles with high height and deep coal seams.

[0058] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An unattended bucket wheel excavator with automatic coal stacking and reclaiming function, characterized in that: It includes: Crane frame (1); A transmission mechanism (13) is installed on the crane frame (1) for transmitting coal from the coal yard; The stockpile monitoring system is installed above the crane frame (1). The stockpile monitoring system uses a three-dimensional probe to scan and monitor the coal piles in the coal plant in real time. The bucket wheel ring frame (11) is rotatably mounted on one side of the crane frame (1); A reduction gear seat (12) is fixed on the crane frame (1), and the output end of the reduction gear seat (12) is fixed to the bucket wheel ring frame (11); Adjust the bucket body (2), which is distributed on the bucket wheel ring frame (11); An external adjustment assembly (3) is installed on the bucket wheel ring frame (11), and one end of the external adjustment assembly (3) is connected to each of the adjustment bucket bodies (2); The regulating bucket (2) includes: Fixed shaft brackets (21) are circumferentially distributed on the bucket wheel ring frame (11); Two sliding sleeves (22) are arranged in parallel and are slidably mounted on the fixed shaft frame (21). An inner spring is provided between the sliding sleeve (22) and the fixed shaft frame (21). The bucket (23) is provided in a one-to-one correspondence with each of the sliding sleeves (22), and one side of the bucket (23) is rotatably connected to the sliding sleeve (22); The shaft tube frame (25) is coaxially fixed on the bucket wheel ring frame (11), and multiple guides (24) are axially slidably arranged on the shaft tube frame (25); The telescopic adjustment rod (26) is vertically rotatably connected to the guide (24). A ball shaft (27) is fixed on one side of the bucket (23). One end of the telescopic adjustment rod (26) is universally rotatably connected to the ball shaft (27).

2. The unattended bucket wheel excavator with automatic coal stacking and reclaiming function according to claim 1, characterized in that: The guide (24) can drive each of the buckets (23) to perform asynchronous axial adjustment under independent sliding, and the deflection angle of the buckets (23) is between 0° and 25°.

3. The unattended bucket wheel excavator with automatic coal stacking and reclaiming function according to claim 1, characterized in that: The external modulation component (3) includes: An inner sealing cylinder (33) is circumferentially distributed within the shaft tube frame (25). A plunger (34) is slidably disposed within the inner sealing cylinder (33). The plunger (34) is connected to the guide (24) in the adjusting bucket body (2) via a support rod. A limiting spring is disposed between the inner sealing cylinder (33) and the plunger (34); and The air pressure plug (35) is slidably disposed within the inner sealing cylinder (33).

4. The unattended bucket wheel excavator with automatic coal stacking and reclaiming function according to claim 3, characterized in that: The external modulation assembly (3) also includes: A shaft disc (31) is disposed inside the shaft tube frame (25). A connecting disc (32) is rotatably disposed on one side of the shaft disc (31). The connecting disc (32) is connected to the air pressure plug (35) through multiple hinge rods. A drive motor (36) is fixed on the shaft tube frame (25). The output end of the drive motor (36) is fixed with a mounting guide plate (37). The mounting guide plate (37) is fixed to the shaft disk (31) through multiple rods (38).

5. An unattended bucket wheel excavator with automatic coal stacking and reclaiming function according to claim 4, characterized in that: The rod frame (38) is configured as a two-section telescopic structure. Each rod frame (38) drives the shaft disk (31) to deflect relative to the mounting guide plate (37) during telescopic movement. The deflection angle of the shaft disk (31) is in the range of -15° to 15°.

6. The unmanned bucket wheel excavator with automatic coal stacking and reclaiming function according to claim 4, characterized in that: The drive motor (36) can drive the shaft disk (31) to rotate continuously or remain stationary when it is working or not working.

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