A bucket-wheel lunar unmanned excavator

Abstract

The application discloses a bucket wheel type moon surface unmanned excavator, which comprises an excavator body, a transfer bucket, a rotating disc, a plurality of shovels and a driving device, the transfer bucket is arranged in the excavator body and is used for containing collected moon soil, the rotating disc is rotatably arranged on one side of the transfer bucket, a plurality of shovels are arranged on the surface of the rotating disc close to the transfer bucket, a first opening is formed in one side of the shovel, a second opening is arranged on the side adjacent to the first opening, and a filter plate is arranged in the first opening; the driving device drives the rotating disc and the plurality of shovels to rotate, the plurality of shovels collect moon soil through the first opening, the moon soil is put into the transfer bucket through the second opening, and the filter screen of the first opening filters stones, the shovel rotates to the top of the transfer bucket, falls into the transfer bucket through the second opening, and collects moon soil, so that the problem that stones enter the transfer bucket and need to be filtered in subsequent use is effectively solved.

Description

A bucket wheel type unmanned excavator for lunar surface Technical Field

[0001] This invention relates to the field of lunar excavation vehicle technology, specifically to a bucket wheel type unmanned lunar excavation vehicle. Background Technology

[0002] The Moon serves as a forward outpost and "natural space station" for humankind's deep space exploration. Due to the exorbitant cost of space transportation, establishing a permanent base on the Moon using space transport is extremely difficult. Current construction methods primarily rely on in-situ resource-based construction techniques, supplemented by materials transported from Earth. Besides being used in situ for lunar base construction, lunar soil is rich in various elements that can be developed and utilized. It contains gaseous elements accumulated from solar wind particles, such as hydrogen, helium, neon, argon, and nitrogen. In addition to these gaseous elements, lunar soil also contains abundant metallic minerals, such as iron, gold, silver, lead, and copper. Furthermore, the helium-3 energy in lunar soil can replenish the energy supply for the lunar base.

[0003] However, when excavators collect lunar soil, there are stones of various sizes in the lunar soil. The excavator's bucket will scoop the stones into the collection bucket. Later, when conducting experiments or using the lunar soil, the stones in the lunar soil need to be filtered, which increases the cost.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a bucket wheel type unmanned lunar excavator, which aims to solve the problem that existing lunar soil excavators dig stones into the collection bucket, and that stones need to be filtered during lunar soil experiments.

[0006] The technical solution adopted by this invention to solve the technical problem is as follows:

[0007] A bucket wheel type unmanned lunar surface excavator, comprising an excavator body, characterized in that it further comprises:

[0008] A transfer bucket, located inside the excavator body, is used to hold lunar soil;

[0009] A rotating disc is rotatably mounted on one side of the central transfer bucket;

[0010] Multiple buckets are arranged radially on the side of the rotating disk near the central transfer bucket. A first opening is provided on one side of each bucket for excavating lunar soil. A filter plate is provided inside the first opening. A second opening is provided on the side adjacent to the first opening for dumping the lunar soil excavated through the first opening into the central transfer bucket.

[0011] A drive device is located on one side of the transfer bucket and connected to the rotating disk, used to drive the rotating disk to rotate.

[0012] According to the above-mentioned technical means, the embodiments of this application drive the rotating disk and multiple buckets to rotate through the driving device. The multiple buckets collect lunar soil through the first opening, put it into the transfer bucket through the second opening, and filter stones through the filter screen of the first opening. The buckets rotate to the top of the transfer bucket and fall into the transfer bucket through the second opening to collect lunar soil. This effectively solves the problem of stones entering the transfer bucket and needing to be filtered for subsequent use.

[0013] Furthermore, a baffle is rotatably provided on one side of the second opening, a first magnet is provided on one side of the second opening, and a second magnet is provided on the side of the baffle close to the second opening. The first magnet and the second magnet attract each other.

[0014] According to the above-mentioned technical means, the embodiment of this application uses a baffle to block the second opening, so as to prevent the bucket and the second opening from tilting when the bucket moves from the bottom to the top of the rotating disk, causing the lunar soil inside the bucket to spill out through the second opening.

[0015] Furthermore, a lead screw is provided at the bottom of the excavator body, and a first motor is coaxially provided on one side of the lead screw. The first motor is located inside the excavator body, and the transfer bucket is threadedly connected to the lead screw.

[0016] According to the above-mentioned technical means, the embodiments of this application use a first motor to drive the lead screw, so that the transfer bucket can move laterally along the lead screw, thereby expanding the digging range of the bucket.

[0017] Furthermore, the lead screw has two sliders threaded into it, and a second motor is provided at the bottom of the sliders. Symmetrical electric telescopic rods are rotatably provided on both sides of the transfer bucket, and the electric telescopic rods are connected to the output shaft of the second motor.

[0018] Based on the above-mentioned technical means, the embodiments of this application further expand the digging range of the bucket by using a second motor in conjunction with the extension and retraction of the electric telescopic rod, thereby improving the collection efficiency of the excavator.

[0019] Furthermore, the excavator body is equipped with a rear bucket, and a third motor is respectively installed on one side of the two electric telescopic rods facing each other. The output shaft of the third motor is connected to the side wall of the transfer bucket.

[0020] According to the above-mentioned technical means, the embodiment of this application can increase the amount of lunar soil collected by the excavator by setting a rear bucket inside the excavator, and drive the transfer bucket to rotate by a third motor to pour the lunar soil in the transfer bucket into the rear bucket.

[0021] Furthermore, a support plate is slidably disposed inside the transfer hopper, and a spring is disposed on the bottom wall of the support plate, with the end of the spring away from the support plate disposed on the inner bottom wall of the transfer hopper.

[0022] Based on the above-mentioned technical means, the embodiments of this application use a support plate in conjunction with a spring to assist the transfer bucket in tilting the lunar soil, preventing lunar soil from remaining in the transfer bucket and reducing the collection efficiency of the excavator.

[0023] Furthermore, a trigger switch is provided on the bottom wall of the transfer hopper.

[0024] Based on the above technical means, the embodiments of this application can determine the amount of lunar soil collected inside the transfer bucket by setting a trigger switch, which facilitates automatic dumping.

[0025] Furthermore, the inner wall of the transfer bucket is provided with a guide block, and the side wall of the support plate is provided with a guide groove, which cooperates with the guide block.

[0026] According to the above technical means, the embodiments of this application effectively prevent the support plate from tilting due to the filling of lunar soil by the cooperation of the guide block and the guide groove, and prevent the support plate from getting stuck with the inner wall of the transfer bucket.

[0027] Furthermore, a first connecting rod and a second connecting rod are provided on both sides of the rear bucket, and a rotating rod is provided on the bottom of the excavator body. The ends of the first connecting rod and the second connecting rod away from the rear bucket are rotatably connected to the rotating rods. A drive motor is provided on the opposite side of the two rotating rods, and the output shaft of the drive motor is connected to the first connecting rod.

[0028] According to the above-mentioned technical means, the embodiments of this application can adjust the position and height of the rear bucket by using a drive motor in conjunction with the first and second connecting rods, thereby preventing obstruction of the transfer bucket from collecting lunar soil and facilitating the transfer bucket to pour the lunar soil into the rear bucket.

[0029] Furthermore, a receiving plate is provided on the side of the transfer hopper near the rotating disk.

[0030] According to the above-mentioned technical means, the embodiments of this application provide a receiving plate on one side of the transfer bucket, which facilitates the bucket to store lunar soil into the transfer bucket through the receiving plate. At the same time, the transfer bucket can be set on the outside of the bucket to expand the internal space of the transfer bucket and hold more lunar soil.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] In this invention, the excavator body is equipped with a transfer bucket for holding collected lunar soil. A rotating disk is mounted on one side of the transfer bucket, and multiple buckets are radially arranged on the surface of the rotating disk near the transfer bucket. A first opening is opened on one side of each bucket for digging lunar soil. A filter plate is installed inside the first opening. A second opening is located on the side adjacent to the first opening, for dumping the lunar soil dug through the first opening into the transfer bucket. A drive device drives the rotating disk and multiple buckets to rotate. The multiple buckets collect lunar soil through the first opening, put it into the transfer bucket through the second opening, and filter out stones through the filter screen of the first opening. The buckets rotate to the top of the transfer bucket and fall into the transfer bucket through the second opening, thus collecting lunar soil. This effectively solves the problem of stones entering the transfer bucket and needing to be filtered for subsequent use. Attached Figure Description

[0033] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 is a schematic diagram of the rotating bucket structure in this invention.

[0035] Figure 3 is a schematic diagram of the rear bucket structure of the present invention.

[0036] Figure 4 is a schematic diagram of the electric telescopic pole structure of the present invention.

[0037] Figure 5 is a schematic diagram of the rotating disk structure of the present invention.

[0038] Figure 6 is a schematic diagram of the support plate structure of the present invention.

[0039] Figure 7 is a schematic diagram of the bucket structure of the present invention.

[0040] Figure 8 is a schematic diagram of the first and second connecting rods of the present invention.

[0041] The numbers in the diagram represent: 1. Excavator body; 11. Lead screw; 12. Slider; 13. Second motor; 14. Electric telescopic rod; 15. Rear bucket; 151. First connecting rod; 152. Second connecting rod; 153. Rotating rod; 154. Drive motor; 16. Third motor; 2. Transfer bucket; 21. Support plate; 22. Spring; 23. Trigger switch; 24. Guide block; 25. Receiving plate; 3. Rotary disc; 4. Bucket; 41. First opening; 42. Second opening; 43. Filter plate; 44. Baffle; 5. Drive device. Detailed Implementation

[0042] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] In view of the shortcomings of the prior art, this embodiment provides a bucket wheel type unmanned lunar excavator, which can be referred to as follows:

[0046] As shown in Figures 1, 2, and 7, a bucket wheel-type unmanned lunar excavator includes an excavator body 1, a transfer bucket 2, a rotating disk 3, multiple buckets 4, and a drive unit 5. The transfer bucket 2 is located inside the excavator body 1 and is used to hold lunar regolith. A rotating disk 3 is rotatably mounted on one side of the transfer bucket 2. Multiple buckets 4 are radially arranged on the rotating disk 3 near the transfer bucket 2, protruding from the outer circumference of the rotating disk 3 to facilitate the excavation of lunar regolith. The multiple buckets 4 are positioned on one side of the rotating disk 3 and form an open cavity on that side. The transfer bucket 2 is placed within this open cavity, and an opening is provided at the top of the transfer bucket 2 to facilitate the excavation of lunar regolith from the buckets 4. The lunar soil is placed into the transfer bucket 2. A first opening 41 is provided on one side of the bucket 4 for digging lunar soil. A filter plate 43 is provided in the first opening 41 for filtering stones in the lunar soil to prevent stones from entering the bucket 4. The size of the filter holes in the filter plate 43 can be opened as needed to facilitate filtering stones of different sizes. A second opening 42 is provided on the side adjacent to the first opening 41. The first opening 41 is used to dig lunar soil, and the second opening 42 is used to pour the lunar soil dug through the first opening 41 into the transfer bucket 2. A drive device 5 is provided on one side of the transfer bucket 2 and is connected to the rotating disk 3 for driving the rotating disk 3 to rotate.

[0047] Specifically, by placing the excavator body 1 on the lunar surface, the excavator body 1 drives the wheels to rotate and move. The bucket 4 at the bottom of the rotating disk 3 is located in the lunar soil. The drive device 5 drives the rotating disk 3 to rotate. Multiple buckets 4 excavate the lunar soil and filter stones under the action of the filter plate 43 to prevent subsequent filtration, which would increase the steps and costs. At the same time, when the bucket 4 of the rotating disk 3 rotates to the top of the rotating disk 3, the lunar soil in the bucket 4 slides down through the second opening 42 and falls into the transfer bucket 2 for storage. The bucket 4 continues to excavate under the action of the rotating disk 3 and the drive device 5 until the transfer bucket 2 is full of lunar soil.

[0048] Furthermore, the excavator body 1 is equipped with a nuclear battery and a controller. The nuclear battery and the controller are electrically connected. The nuclear battery is used to provide power, and the controller is used to control the drive unit 5 and the rotation of the motors in the wheels. A camera is installed at the front of the excavator body 1 to observe the road conditions in front of the excavator body 1. The camera is connected to the nuclear battery and the controller. Four bionic elastic wheels are installed at the bottom of the excavator body 1. The bionic elastic wheels are equipped with motors inside, and the motors are connected to the nuclear battery and the controller.

[0049] Specifically, the camera observes the road conditions in front of the excavator body 1, and the controller can control the speed of the motor in each bionic elastic wheel. By adjusting the speed difference, the direction of travel of the excavator body 1 can be adjusted.

[0050] Furthermore, the second opening 42 faces the center of the rotating disk 3, and the first opening 41 is set perpendicular to the second opening 42. When the bucket 4 rotates to directly above the transfer bucket 2, the second opening 42 is directly opposite the opening of the transfer bucket 2, which facilitates the storage of lunar soil into the transfer bucket 2.

[0051] Furthermore, a vibrator such as a vibrating motor is installed on the side of the filter plate 43 near the bucket 4. The vibrating motor is located inside the bucket 4. When the bucket 4 is digging lunar soil, it vibrates the filter plate 43 to prevent the filter holes of the filter plate 43 from being too small, causing the lunar soil to be squeezed together and unable to enter the bucket 4.

[0052] Furthermore, the transfer bucket 2 can be located on one side of the bucket 4 to increase the internal size of the transfer bucket 2. A slot is provided on the side of the transfer bucket 2 near the bucket 4, and a receiving plate 25 is provided on the slot. The receiving plate 25 is at a certain angle to the side wall of the transfer bucket 2, so that the lunar soil in the bucket 4 falls onto the receiving plate 25. Through the tilt of the receiving plate 25, the lunar soil slides into the transfer bucket 2.

[0053] Furthermore, as shown in Figure 5, a baffle 44 is provided on one side of the second opening 42, a first magnet is provided on one side of the second opening 42, and a second magnet is provided on the side of the baffle 44 near the second opening 42. The first magnet and the second magnet attract each other to block the second opening 42. When the bucket 4 excavates the lunar soil, under the rotation of the rotating disk 3, the bucket 4 will move above the transfer bucket 2. At this time, the gravity of the lunar soil in the bucket 4 will act more on the surface of the baffle 44, thereby causing the baffle 44 to rotate, the first magnet and the second magnet to separate, the second opening 42 to open, and the lunar soil to fall into the transfer bucket 2. The baffle 44 is provided to prevent the second opening 42 of the bucket 4 from slowly tilting under the rotation of the rotating disk 3, so that the lunar soil near the second opening 42 in the bucket 4 will slide out of the vehicle body and not slide into the transfer bucket 2, thus reducing the excavation efficiency of the excavator.

[0054] Furthermore, as shown in Figures 1 and 6, the drive device 5 includes a fixed rod and a motor installed inside the fixed rod. The motor is connected to a controller inside the excavator body 1. One end of the fixed rod is located on one side of the transfer bucket 2, and the other end is rotatably installed with the rotating disk 3. The output shaft of the motor inside the fixed rod is connected to the rotating disk 3. The rotating disk 3 is driven to rotate by the rotation of the motor.

[0055] As shown in Figures 3 and 4, a lead screw 11 is installed at the bottom of the excavator body 1. A first motor is coaxially installed on one side of the lead screw 11. The first motor is located inside the excavator body 1 and is used to drive the lead screw 11 to rotate. The first motor is connected to the controller. The transfer bucket 2 is threadedly connected to the lead screw 11. By driving the lead screw 11 to rotate through the first motor, the lead screw 11 can drive the transfer bucket 2 to move laterally along the lead screw 11, thereby expanding the excavation area and improving excavation efficiency. At the same time, in conjunction with the camera, it avoids obstacles such as large rocks and also prevents the bucket 4 from digging heavy rocks or stones, which could cause the excavator to overturn.

[0056] Furthermore, two sliders 12 are threaded onto the lead screw 11. A second motor 13 is installed at the bottom of the slider 12 and is connected to the controller. Symmetrically arranged electric telescopic rods 14 are mounted on both sides of the transfer bucket 2. The electric telescopic rods 14 are connected to the controller, and the two electric telescopic rods 14 are respectively connected to the output shafts of the two second motors 13. The lead screw 11 is driven to rotate by the first motor, which in turn drives the sliders 12 and the second motors 13 to move. At the same time, the controller controls the second motors 13 to rotate, which in turn drives the electric telescopic rods 14 to rotate. The controller controls the two electric telescopic rods 14 to extend and retract respectively, thereby realizing the left and right offset of the transfer bucket 2, which further expands the digging range and the obstacle avoidance range.

[0057] As shown in Figures 3 and 8, the excavator body 1 is equipped with a rear bucket 15, the internal space of which is larger than that of the transfer bucket 2. The rear bucket 15 is used to store lunar soil. Two electric telescopic rods 14 are respectively equipped with a third motor 16 on one side facing each other. The output shaft of the third motor 16 is connected to the side wall of the transfer bucket 2. The third motor 16 is connected to a controller. The controller controls the rotation of the third motor 16, thereby causing the transfer bucket 2 to rotate until the opening of the transfer bucket 2 faces downward and is located at the top of the opening of the rear bucket 15, so that the lunar soil in the transfer bucket 2 is poured into the rear bucket 15. Then the transfer bucket 2 is restored to its initial state, and the bucket 4 continues to excavate and fill the lunar soil. When the lunar soil inside the transfer bucket 2 is full, it is poured into the rear bucket 15.

[0058] Furthermore, a support plate 21 is slidably installed inside the transfer bucket 2, and a spring 22 is installed on the bottom wall of the support plate 21. The end of the spring 22 away from the support plate 21 is installed on the inner bottom wall of the transfer bucket 2. In the initial state, the spring 22 is in the normal state, and the support plate 21 is located near the opening of the transfer bucket 2. As lunar soil is continuously stored in the transfer bucket 2 from the bucket 4, the support plate 21 in the transfer bucket 2 slides towards the bottom wall of the transfer bucket 2 until the spring 22 is completely compressed and the support plate 21 is close to the inner bottom wall of the transfer bucket 2. At this time, the controller controls the third motor 16 to make the transfer bucket 2 rotate, and dump the lunar soil in the transfer bucket 2 into the rear bucket 15.

[0059] During the pouring process, the support plate 21 is not squeezed by the gravity of the lunar soil. Under the action of the spring 22, it slides towards the opening of the transfer bucket 2 and pushes the lunar soil out of the transfer bucket 2. Through the action of the support plate 21 and the spring 22, the transfer bucket 2 is assisted in pouring the lunar soil and prevents the lunar soil from remaining inside the transfer bucket 2.

[0060] Furthermore, a trigger switch 23 is installed on the bottom wall of the transfer bucket 2. The trigger switch 23 is connected to the controller. When the lunar soil in the transfer bucket 2 is full, the support plate 21 slides down to the bottom wall of the transfer bucket 2 and triggers the trigger switch 23. The trigger switch 23 sends a signal to the controller, and the controller controls the third motor 16 to drive the transfer bucket 2 to rotate.

[0061] Furthermore, the inner wall of the transfer bucket 2 is provided with a guide block 24, and the side wall of the support plate 21 is provided with a guide groove. The guide groove and the guide block 24 cooperate with each other to prevent the support plate 21 from tilting under the pressure of lunar soil and getting stuck, so that it cannot slide inside the transfer bucket 2. At the same time, multiple slots are opened on the bottom wall of the transfer bucket 2 to prevent lunar soil from falling into the bottom of the transfer bucket 2 through the gap between the support plate 21 and the transfer bucket 2. If too much falls into the bottom of the transfer bucket 2, it will cause the trigger switch 23 to be accidentally triggered and the support plate 21 will not be able to fall to the position of the trigger switch 23. At this time, the lunar soil can be discharged through the slots at the bottom of the transfer bucket 2.

[0062] As shown in Figure 8, a first connecting rod 151 and a second connecting rod 152 are symmetrically arranged on both sides of the rear bucket 15. A rotating rod 153 is symmetrically arranged at the bottom of the excavator body 1. The ends of the first connecting rod 151 and the second connecting rod 152 away from the rear bucket 15 are rotatably connected to the rotating rod 153. A drive motor 154 is respectively arranged on the opposite side of the two rotating rods 153. The output shaft of the drive motor 154 is connected to the first connecting rod 151. The drive motor 154 is connected to the controller.

[0063] In the initial state, the rear bucket 15 is located on the side of the transfer bucket 2 away from the rotating disk 3, and a certain distance is set between the two. In order to avoid hindering the use of the transfer bucket 2, after the transfer bucket 2 is filled with lunar soil, it will be driven to rotate. After rotation, in order to make the opening of the transfer bucket 2 correspond to the opening of the rear bucket 15, before driving the transfer bucket 2 to rotate, the drive motor 154 drives the first connecting rod 151 to rotate, so that the rear bucket 15 moves closer to the transfer bucket 2. Under the action of the first connecting rod 151 and the second connecting rod 152, the height of the rear bucket 15 decreases, making it convenient for the transfer bucket 2 to empty the lunar soil. After the lunar soil in the transfer bucket 2 is emptied, the transfer bucket 2 is first rotated at a certain angle to move away from the movement range of the rear bucket 15. Then, the drive motor 154 drives the first connecting rod 151 to reverse, so that the rear bucket 15 returns to the initial state. Finally, the transfer bucket 2 returns to the initial state.

[0064] Furthermore, the excavator body 1 is equipped with a drive rod, and one end of each of the two rotating rods 153 is connected to the drive rod. A fourth motor is coaxially mounted on the drive rod and is located inside the excavator body 1. The fourth motor is connected to a controller, which controls the rotation of the fourth motor to make the drive rod rotate, thereby causing the rotating rods 153 to rotate around the axis of the drive rod, which in turn causes the rear bucket 15 to tip over and dump the lunar soil inside the rear bucket 15.

[0065] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A bucket wheel type unmanned lunar excavator, comprising an excavator body, characterized in that, Also includes: A transfer bucket, located inside the excavator body, is used to hold lunar soil; a rotating disk is rotatably mounted on one side of the transfer bucket; multiple buckets are located on the rotating disk near the transfer bucket and arranged radially, with a first opening on one side of each bucket for excavating lunar soil, a filter plate installed inside the first opening, and a second opening on the side adjacent to the first opening for dumping the lunar soil excavated through the first opening into the transfer bucket; A drive unit is located on one side of the transfer bucket and connected to the rotating disk to drive the rotating disk to rotate. A lead screw is located at the bottom of the excavator body, and a first motor is coaxially mounted on one side of the lead screw. The first motor is located inside the excavator body, and the transfer bucket is threadedly connected to the lead screw. Two sliders are threadedly fitted on the lead screw, and a second motor is located at the bottom of the sliders. Symmetrically mounted electric telescopic rods are rotatably mounted on both sides of the transfer bucket, and the electric telescopic rods are connected to the output shafts of the second motors. A rear bucket is located inside the excavator body, and a third motor is mounted on one side of each of the two electric telescopic rods facing each other. The output shafts of the third motors are connected to the side walls of the transfer bucket. A support plate is slidably mounted inside the transfer bucket, and a spring is mounted on the bottom wall of the support plate. The end of the spring away from the support plate is located on the inner bottom wall of the transfer bucket.

2. The bucket wheel type unmanned lunar excavator according to claim 1, characterized in that, A baffle is rotatably provided on one side of the second opening, a first magnet is provided on one side of the second opening, and a second magnet is provided on the side of the baffle close to the second opening. The first magnet and the second magnet attract each other.

3. The bucket wheel type unmanned lunar excavator according to claim 1, characterized in that, A trigger switch is installed on the bottom wall of the transfer bucket.

4. The bucket wheel type unmanned lunar excavator according to claim 1, characterized in that, The inner wall of the transfer bucket is provided with a guide block, and the side wall of the support plate is provided with a guide groove, which cooperates with the guide block.

5. A bucket wheel type unmanned lunar excavator according to claim 1, characterized in that, The rear bucket is provided with a first connecting rod and a second connecting rod that are symmetrical to each other on both sides. The bottom of the excavator body is provided with a rotating rod that is symmetrical to each other. The ends of the first connecting rod and the second connecting rod away from the rear bucket are rotatably connected to the rotating rods. The two rotating rods are respectively provided with a drive motor on the opposite side. The output shaft of the drive motor is connected to the first connecting rod.

6. A bucket wheel type unmanned lunar excavator according to claim 1, characterized in that, A receiving plate is provided on the side of the transfer hopper near the rotating disk.

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