WO2021169737A1 - Sand dune gravitational potential energy power generation device - Google Patents

Abstract

A sand dune gravitational potential energy power generation device comprising a crawler (1) and a generator set, the generator set being provided at a front portion of the crawler (1); the generator set comprises a large wheel disc (2), a front support column (14), a support column (11), a variator (5), and a generator (6); a plurality of sand hoppers (3) that can receive sand are circumferentially arranged at intervals on the large wheel disc (2); the large wheel disc (2) is fixed on the crawler (1) by means of the front support column (14) and the support column (11); and when rotating, the large wheel disc (2) can enable the generator (6) to generate electricity by means of the variator (5). The sand dune gravitational potential energy power generation device can transform the gravitational potential energy of sand into rotational energy of a set wheel disc, and then drives the generator to emit electric potential energy. The sand dune gravitational potential energy power generation device has a simple construction, is easy to fabricate, convenient to move in the desert, can provide new energy for the motherland, and reduces fossil energy.

Description

Sand dune gravity potential energy power generation equipment

Related application

This application requires the priority of a Chinese utility model patent with a patent application number of 202020224939.7, an application date of February 28, 2020, and a utility model titled "A kind of sand dune gravity potential energy power generation equipment".

Technical field

This application relates to a sand dune gravity potential energy power generation device.

Background technique

Electricity has become an indispensable energy source for mankind, and the existing electric energy is inadequate and has some shortcomings. For example, thermal power generation consumes a lot of precious fossil energy and emits harmful carbon dioxide. Although solar power generation and wind power generation are non-polluting, they have a large investment and long power generation interruptions. Nuclear power generation has a certain degree of pollution and limited raw materials. Hydropower generation is limited by water resources.

Application content

In order to utilize desert resources, this application provides a sand dune gravitational potential energy power generation device. The sand dune gravitational potential energy power generation device can convert the gravitational potential energy generated when the sand of the dune falls into the rotation energy of the large roulette of the generator set, and then the rotation energy can be passed through The generator is converted into electrical energy.

The technical solution adopted by this application to solve its technical problem is: a sand dune gravitational potential energy power generation equipment, including a crawler vehicle and a generator set, the generator set is arranged at the front of the crawler vehicle, and the generator set includes a large wheel and a front support column , Support columns, speed changers and generators. There are a number of sand buckets that can hold sand arranged on the large roulette at intervals along the circumference. The large roulette is fixed on the tracked vehicle through the front support column and the support column. When rotating, the generator can generate electricity through the speed changer.

The beneficial effect of this application is that the sand dune gravitational potential energy power generation equipment will create cheap sand dune energy for humans, save a lot of precious fossil energy, and reduce carbon dioxide emissions, for the benefit of mankind. For example, a generator set with a large wheel diameter of 50m can be used Power generation is 630,000 KW, 36 units can generate 22.7 million KW, which is equivalent to the installed capacity of the Three Gorges Hydropower Station (22.5 million KW). If the number of generator sets is increased, several Three Gorges hydropower stations will be generated. Reservoir does not require immigration, equipment investment is small, and construction is fast. After the generator set is completed, it can be installed in the sand dunes and connected to the power grid. It can be put into production in a few days. There are 700,000 square kilometers of desert in our country alone. There are large and small sand dunes in the desert. The height of the sand dunes ranges from tens of meters to hundreds of meters, and there are sand hills as high as more than one thousand meters. These sand dunes are formed by wind for tens of thousands of years. It is a precious energy gifted by nature to mankind, but unfortunately it has not been developed and used. If these dunes are developed and used and leveled, new dunes will be formed due to the action of desert wind, which can be reused.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application.

Fig. 1 is a schematic side view of the sand dune gravity potential energy power generation equipment according to the present application.

Fig. 2 is a schematic front view of the sand dune gravity potential energy power generation equipment according to the present application.

Figure 3 is a schematic diagram of a sand bucket.

Figure 4 is a front view of the spring pin stuck to the spring door.

Figure 5 is a top view of the spring pin stuck to the spring door.

Fig. 6 is a front view of the spring pin opening the spring door.

Fig. 7 is a plan view of the spring pin opening the spring door.

Fig. 8 is a schematic side view of a loader and a conveyor supplying sand to the sand dune gravity potential energy power generation equipment.

Figure 9 is a schematic plan view of four loaders and one conveyor supplying sand to the sand dune gravity potential energy power generation equipment.

Fig. 10 is a schematic side view of the continuous operation of three sand dune gravity potential energy power generation equipment described in the present application.

Detailed ways

It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with the embodiments.

A sand dune gravitational potential energy power generation equipment includes a crawler vehicle 1 and a generator set. The generator set is arranged at the front of the crawler vehicle 1. The generator set includes a large wheel 2, a support column 11, a front support column 14, a speed changer 5 and The generator 6, the large wheel 2 is arranged with a plurality of sand buckets 3 that can hold sand at intervals in the circumferential direction. The large wheel 2 is fixed on the crawler vehicle 1 through the front support column 14 and the support column 11. The large wheel disk 2 When rotating, the generator 6 can be generated by the transmission 5, as shown in Figs. 1 and 2.

In this embodiment, the sand dune gravitational potential energy power generation equipment adopts a crawler vehicle 1 for convenient movement. The crawler vehicle 1 includes a carrying frame, a crawler belt, and a power system. The load-bearing frame, crawler belt and power system of the crawler vehicle 1 can adopt existing technologies. According to the weight and working conditions of the sand dune gravitational potential energy power generation equipment, a suitable crawler 1 is selected. The crawler 1 is suitable for operation in the desert. When the sand of a dune is used up for power generation, it is convenient to move the generator set to Another sand dune continues to generate electricity.

In this embodiment, the crawler vehicle 1 includes a control system that can control the operation of the crawler vehicle 1 and the generator set. The crawler vehicle 1 is provided with a closed and relatively independent living warehouse 12, the large wheel 2 is located in front of the living warehouse 12, and the large wheel 2 is installed in the front of the crawler vehicle 1, which is beneficial for landing installation close to the sand dune 10. The living bin 12 is fixed on the carrying frame of the crawler vehicle 1, and the control system may be located in the living bin 12. The living warehouse 12 is equipped with daily necessities and household items, which can facilitate the life and rest of the operator, and can also prevent the attack of wind and sand, as shown in Figure 1.

In this embodiment, the big wheel 2 is connected to the front support column 14 and the support column 11 through the center shaft 13. The big wheel 2 has a circular structure, and the axis of the big wheel 2 coincides with the axis of the center shaft 13. The disc 2 is connected and fixed with the central shaft 13, the large wheel disc 2 can be rotated about the central shaft 13, a bearing is provided between the central shaft 13 and the support column 11, and a bearing is also provided between the central shaft 13 and the front support column 14. The speed changer 5 and the generator 6 are both fixed with respect to the support column 11, and the speed changer 5 and the generator 6 are both fixed on the support column 11. The tracked vehicle 1 is also provided with a power generation warehouse 7, and the transmission 5 and the generator 6 are both located in the power generation warehouse 7. The power generation warehouse 7 can be used to protect the transmission 5 and the generator 6, and the power generation warehouse 7 and the living warehouse 12 are arranged up and down. Both the power generation warehouse 7 and the living warehouse 12 are provided with stairs.

In this embodiment, one end of the center shaft 13 is connected to the middle of the front support column 14. The center shaft 13 passes through the top of the support column 11 and the center of the big wheel 2, and the other end of the center shaft 13 is connected to the center through the first transmission mechanism. The input shaft of the transmission 5 is connected, and the output shaft of the transmission 5 is connected with the input shaft of the generator 6 through a second transmission mechanism. When the big wheel 2 rotates with the middle shaft 13 as the axis, the middle shaft 13 rotates synchronously with the big wheel 2, driving the input shaft and output shaft of the speed changer 5 to rotate, thereby driving the input shaft of the generator 6 to rotate, but the front support Both the upright post 14 and the support upright post 11 remain stationary.

In this embodiment, the big roulette 2 is located between the front support post 14 and the support post 11, the support post 11 is located between the big roulette 2 and the living room 12, and the front support post 14 and the support post 11 are arranged in front and rear parallel. The lower part of the support column 14 can be connected to the load-bearing frame of the crawler vehicle 1 through a crossbeam. The lower end of the front support column 14 is connected with a floor stand 4. The front support column 14 and the floor stand 4 can stabilize the generator set on the ground in the desert. Facilitate the stable operation of the generator set.

In this embodiment, the upper end of the front support column 14 is higher than the upper end of the big wheel 2. In use, the upper end of the front support column 14 can be connected with the output end of the conveyor 8 to guide the sand conveyed by the conveyor 8. Enter the sand bucket 3 on the big roulette 2. The floor stand 4 has an inverted U-shaped structure, and the lower end of the floor stand 4 is located on the ground of the desert, so that the generator set is stable.

In this embodiment, the sand bucket 3 is a bucket-shaped structure with an open upper end and a closed bottom end. The sand bucket 3 may include side walls and a bottom plate connected up and down. Both sides of the upper part of the sand bucket 3 are provided with trunnions, and the sand bucket 3 By connecting the trunnion and the bearing to the big wheel 2, the sand bucket 3 can rotate with the trunnion as an axis, as shown in FIG. 3. The sand bucket 3 can be used to unload the sand with the structure of the existing automatic dump bucket and the method of dumping sand. At this time, each sand bucket 3 is connected with a bucket turning mechanism, which can make the sand bucket 3 wrap around the ear. The shaft rotates. Alternatively, the sand bucket 3 can also adopt the existing automatic unloading structure at the bottom of the excavator bucket and the automatic sand discharge method at the bottom of the sand bucket. At this time, each sand bucket 3 is connected with a bottom plate opening and closing mechanism. The bottom plate can be moved or rotated.

When the sand bucket 3 is at the upper end of the big wheel 2, the sand bucket 3 is in a state where the upper end is open and the lower end is closed; when the sand bucket 3 descends, the sand bucket 3 always keeps the upper end open and the lower end closed; when the sand bucket 3 is at the big wheel At the lower end of the roulette 2, the lower end of the sand bucket 3 is in an open state, so that the sand contained in the sand bucket 3 is poured out. The rotation speed around the big wheel 2 should be controlled at 0.5m/sec, the opening size of the upper end of the sand bucket 3 is 4.5m×4.5m, and the feeding time of each sand bucket 3 is 4.5m÷O.5m/sec=9 Second, if the big wheel 2 rotates too fast, the sand will not easily enter the sand bucket 3.

In this embodiment, along the circumferential direction of the big wheel 2, the distance between two adjacent sand buckets 3 should be small to prevent sand from leaking out of the sand bucket 3 during continuous sand feeding. The lower part of the supporting column 11 is provided with a position sensor (such as an infrared sensor). The position of the position sensor corresponds to the position of the sand bucket 3. The position sensor can monitor which sand bucket 3 is located at the lower end of the big wheel 2. The position sensor Connected with the above-mentioned control system, the above-mentioned sand bucket turning mechanism or the bottom plate opening and closing mechanism is also connected with the control system. When a certain sand bucket 3 is located at the lower end of the big wheel 2, the position sensor of the control system can send a signal to the control system, and the control system opens the bucket turning mechanism or the bottom plate of the sand bucket 3 at the lower end of the big wheel 2 The closing mechanism sends an action signal, so that the sand contained in the sand bucket 3 can be discharged.

Or, in this embodiment, the sand bucket 3 includes a side wall and a spring door 35 connected up and down. The spring door 35 can be connected to the side wall through a door shaft and a torsion spring. The spring door 35 can rotate and automatically reset. When the spring door 35 is in a closed state, the lower end of the sand bucket 3 is in a closed state; when the spring door 35 is in an open state, the lower end of the sand bucket 3 is in an open state. When the sand bucket 3 is located at the lower end of the big wheel 2 and the sand bucket 3 is at the sand-out position, the spring door 35 will be in an open state. When the sand bucket 3 is located in other positions of the big wheel 2 and the sand bucket 3 is in the sand loading position, the spring door 35 will be in a closed state.

In this embodiment, a door opening mechanism is provided outside the lower end of the side wall of the sand bucket 3, and the door opening mechanism includes a spring pin holder 31, a spring pin 32, and a spring 33. The sand dune gravity potential energy power generation equipment also includes an overhead key 34, as shown in Figures 4 to 7. The overhead key 34 is located at the lower end of the big roulette 2. The overhead key 34 corresponds to the sand-out position of the sand bucket 3. The overhead key 34 can be located between the big roulette 2 and the support column 11. The overhead key 34 can be fixed on the ground or connected to the The carrier frame of the crawler vehicle 1 is fixed, the overhead key 34 is a strip-shaped plate structure, and one end of the overhead key 34 is provided with a sharp corner. As shown in FIG. 5, the spring pin frame 31 is fixed to the side bucket of the sand bucket 3. Outside the lower end of the wall, the spring pin 32 and the spring 33 are both connected with the spring pin holder 31. The spring pin 32 can move along the axis of the big wheel 2, that is, the spring pin 32 can move along the left and right directions in FIG. In the lying L-shaped structure, one end of the spring pin 32 is provided with an upward bending section, and the spring 33 can reset the spring pin 32. The spring pin 32 at the bottom of the sand bucket 3 bears great pressure when the sand bucket 3 is filled with sand. When the spring pin 32 moves, the friction force will be large. A pulley can be added to the contact part of the spring pin 32 and the spring door 35. To reduce friction.

When the sand bucket 3 is in the sand loading position, the spring door 35 is in a closed state, and the spring door 35 is connected up and down with the other end of the spring pin 32. The spring pin 32 can block the rotation of the spring door 35. That is, due to the blocking of the spring pin 32, the spring door 35 can not rotate, so that the spring door 35 is always kept closed. When the sand bucket 3 rotates with the big wheel 2 to the sand discharge position, the upward bending section of the spring pin 32 touches the sharp corner of the overhead key 34, so that the spring pin 32 can be separated from the spring door 35, that is, the spring pin 32 is in Moving to the right in Figures 4 and 5, the spring pin 32 can no longer block the rotation of the spring door 35, the spring door 35 rotates downward under the gravity of the sand in the sand bucket 3, and the spring door 35 rotates from the closed state to the open state. The sand in the sand bucket 3 will be discharged from the lower end of the sand bucket 3. After the sand is released, the spring door 35 will return to the closed state due to the loss of the gravity of the sand. At this time, the upward bending section of the spring pin 32 is just out of the overhead key 34 , The spring pin 32 is reset under the action of the spring 33 (the spring pin 32 moves to the left in Figures 4 and 5), the spring door 35 and the other end of the spring pin 32 are reconnected up and down, and the spring pin 32 can block the rotation of the spring door 35 , The spring door 35 is in the closed state again.

In this embodiment, the crawler vehicle 1 is provided with a sand discharging mechanism 9. The sand discharging mechanism 9 can adopt an existing transmission belt. The sand unloaded by the sand bucket 3 is transported to the set open area to prevent the sand unloaded by the sand bucket 3 from accumulating under the big wheel 2. In addition, the generator 6 can be connected to the grid, and the electric energy generated by the generator 6 can be supplied to the grid.

The following describes the power generation principle of the sand dune gravity potential energy power generation equipment.

When an object falls from a high place, due to the action of the earth's gravity, it will generate gravitational potential energy, also known as potential energy (EP=mgh). This application is to transform the gravitational potential energy generated when the sand of the dune falls into a big wheel through the sand bucket 3 The rotation energy of 2 drives the generator 6 to transform into electric energy. The principle of sand dune power generation is the same as that of hydropower. Both use the potential energy of water or sand at high places to generate electricity. The difference is that the water for hydroelectric power generation automatically flows into the turbine to perform work, while the sand needs to be sent into the generator set by a conveyor 8 (which can be an existing conveyor belt).

The ancient waterwheel used a big wheel with a bucket around the wheel. Water flows into the bucket on the upper part of the wheel. Due to the potential energy of the water, the wheel is pushed and rotated. The center axis of the wheel is Then drive the stone mill and other tools to work. A sand bucket 3 is installed around the big wheel 2 of the generator set of this application, and the position energy of the sand is used to drive the big wheel 2 to rotate, and then drive the generator 6 to generate electricity. Like the waterwheel, this waterwheel has been used for thousands of years and is a very mature technology. The specific gravity of sand is 2.5, which is 2.5 times that of water. When water and sand are at the same height and volume, the potential energy power generated by sand is 2.5 times that of water. Sand potential energy generation has greater advantages.

The following describes the power generation process of the sand dune gravity potential energy power generation equipment:

Sand at the height of the dune → loader 15 digs the sand → conveyor 8 conveys the sand → the sand bucket 3 of the generator set accepts the sand → the big wheel 2 is forced to generate a rotational torque to rotate → the sand reaches the lower end of the big wheel 2 and is poured out → out Sand agency 9 accepts sand → delivers sand to other spaces at the bottom of the dune.

The following describes the power generation process of the sand dune gravity potential energy power generation equipment:

The gravitational potential energy of the sand → the rotational energy of the big wheel 2 → the rotational energy of the speed changer 5 → the rotation of the generator 6 to generate electricity

The following describes the power generation technology of the sand dune gravity potential energy power generation equipment:

The gravitational potential energy when the sand falls from a high place is used to drive the big wheel 2 of the generator set to rotate, generate the rotation energy of the big wheel 2, and then drive the generator 6 to generate electricity.

The specific implementation method is: load the sand into the conveyor 8 with the loader 15, and transport the sand from the height into the sand bucket 3 at the upper end of the large wheel 2 of the generator set. Due to the gravity potential energy of the sand, the large wheel 2 Keep turning, the sand will also be continuously sent into the sand buckets 3 of the big wheel 2 one after another. When the sand bucket 3 turns to the lower end of the big wheel 2, pour the sand in each sand bucket 3 The sand is transported away from the sand discharge mechanism 9 below, so that the sand is continuously fed into the sand bucket 3 on the upper part of the big roulette 2, and when the sand bucket 3 reaches the lower end of the big roulette 2, the sand is poured out again to form the big roulette 2. There is sand in the sand bucket 3 on one side of the wheel, and there is gravitational potential energy, and the sand bucket 3 on the other side of the big wheel 2 has no sand and no gravitational potential energy. Therefore, when the weight on both sides of the big roulette 2 is not equal, the big roulette 2 is continuously rotated in one direction, so that the big roulette 2 generates rotational energy, and the central shaft 13 connected to the big roulette 2 drives it. The input shaft and output shaft of the speed changer 5 rotate, and then the input shaft of the generator 6 is driven to rotate to generate electric energy, so that the sand dune gravity potential energy power generation device completes the function of generating electricity.

The following describes the sand supply and sand discharge of the sand dune gravity potential energy power generation equipment:

The sand dune gravitational potential energy power generation is completed by the gravitational potential energy of the sand at the height of the sand dune. The sand must be continuously fed into the generator set to make the unit run normally. Multiple loaders 15 can be used in combination, for example, multiple loaders 15 The sand is mounted on the conveyor 8, and the conveyor 8 sends the sand into the sand bucket 3 of the large wheel 2 of the generator set, so that the generator set continues to run, as shown in Figs. 8-10. When the nearby sand is used up, it is necessary to add a conveyor 8 to transport the sand from a distance. In order to save energy, raise the far end of the conveyor 8 by an angle of 20°-30°, and let the sand move from high to low. Go downstream and reduce resistance. The loader 15 can be an existing crab-claw loader, and of course, a more advanced loader can also be used. After the sand has done work, it reaches the conveyor at the lower end of the unit and must be immediately transported to the open space set aside in advance to prevent it from accumulating near the unit.

Improve the efficiency of the sand dune gravitational potential energy generator set, making the application of the sand dune gravitational potential energy power generation more feasible:

Assuming that the diameter of the big wheel 2 in the generator set is 50m, it can generate 630,000 KW. If the diameter of the big wheel 2 is increased, it is equal to increasing the potential energy of the sand, and the generating power of the generator set will increase accordingly. However, the roulette of the unit is enlarged, and the crawler and other facilities must be correspondingly enlarged, which will also bring some defects. If multiple sets of the dune gravity potential energy generation equipment are used for continuous operation, it will not increase the sand in and out of the situation. , Increase the power generation. As shown in Figure 5, the continuous operation of three sets of the sand dune gravity potential energy power generation equipment can increase the power generation power by three times, while only one set of sand inlet and outlet equipment is used, which saves two-thirds of the energy consumption of sand inlet and outlet. Some desert dunes are as high as several hundred meters, and there are also sand hills as high as more than one thousand meters. 10 or 20 sets of gravity potential energy power generation equipment of this dune can be used for continuous operation, and the equipment and energy consumption of sand entering and exiting should be reduced to One-tenth, one-twentieth, the operation of continuous power generation makes the application of sand dune gravity potential energy power generation more feasible.

Power calculation of sand dune gravitational potential energy power generation:

a. Sand weight (m)

Suppose: the diameter of the big wheel 2 of the sand dune gravity potential energy generator set is 50m, the circumference of the big wheel 2 is 50mxπ=157m, the length×width×height of each sand bucket 3=4.5m×4.5m×3.5m=70.8 m ³ , it can hold 70.8×2.5=177t of sand (the specific gravity of sand is calculated at 2.5t/m ³ ). A sand bucket 3 is hung on the periphery of the big wheel 2 every 4.6m, and 157÷4.6m=34 sand buckets 3 can be hung, and one side of the sand bucket 3 can hold sand 34×177t×1/2=3009t=3009000kg.

b. The descending height of sand is 50m (H)

The big roulette 2 is 50m high.

c. The sand falling speed is 0.5m/sec (V)

It takes 100 seconds for the sand to fall 50 meters.

d.1 horsepower=75kg, m/sec=0.74kw

e. Generating power of the machine (w)

w=742,000 kw

f. Generator efficiency 95%

The generator set loss is 5%.

Loaders, conveyors, etc. consume 5% of energy.

The total power loss is 15% of the generated power.

The actual power generation is:

742,000 kW × 85% = 630,000 kW.

g. 36 units can generate 630,000 kw×36 = 22.7 million kw.

Equivalent to the installed capacity of the Three Gorges Hydropower Station (22.5 million kw).

Can the sand dune gravitational potential energy generator set maintain continuous power generation:

This unit can generate electricity 24 hours a day. When the sand in one dune is used up, it needs to be switched to another dune, which takes several hours. Several units must be installed to generate electricity at the dune level, which can cooperate with each other to avoid Intermittent power generation problem.

In this application, the sand at the height of the desert dune is used to generate electricity by using the gravitational potential energy of the sand when the position of the sand is lowered. When the sand passes through the sand dune gravitational potential energy generator set, it converts the gravitational potential energy of the sand into the rotation energy of the wheel disc of the unit, and then drives the generator to generate electric potential energy. The sand dune gravitational potential energy generates electricity. The main equipment is the sand dune gravity potential energy generator set. The structure of the unit is Simple and easy to manufacture, the unit is installed on a crawler, which is convenient to move in the desert. In addition, conventional loaders, conveyors and other facilities are required. After the generator set is installed in the desert, the power grid can be repaired to generate electricity. Each unit can generate 630,000 KW. There are 700,000 square kilometers of deserts in our country, and the dune energy is vast. It needs to be developed by the power sector to provide the motherland with new energy and save fossil energy.

The above are only specific examples of this application, and cannot be used to limit the scope of implementation of the application. Therefore, replacement of equivalent components or equivalent changes and modifications made in accordance with the scope of patent protection of this application should still be covered by this patent. Category. In addition, the technical features and technical features, between technical features and technical solutions, and between technical solutions and technical solutions in this application can be freely combined for use.

Claims (10)

A sand dune gravitational potential energy power generation equipment, characterized in that the sand dune gravitational potential energy power generation equipment includes a crawler vehicle (1) and a generator set, the generator set is arranged at the front of the crawler vehicle (1), and the generator set contains a large wheel disc (2) The front support column (14), the support column (11), the speed changer (5) and the generator (6), the large wheel (2) is arranged at intervals along the circumferential direction with a number of capable of holding sand The sand bucket (3), the big wheel (2) are fixed on the crawler vehicle (1) through the front support column (14) and the support column (11). When the big wheel (2) rotates, it can be turned by the speed changer (5). The generator (6) generates electricity. The sand dune gravitational potential energy power generation equipment according to claim 1, characterized in that the crawler vehicle (1) contains a carrying frame, a crawler belt and a power system, and the crawler vehicle (1) is provided with a closed living room (12), large wheels The tray (2) is located in front of the living room (12). The sand dune gravitational potential energy power generation equipment according to claim 2, characterized in that the big wheel (2) is connected to the front support column (14) and the support column (11) through the central shaft (13), and the big wheel (2) The center shaft (13) can be used as the axis to rotate, and the speed changer (5) and the generator (6) are both fixed relative to the supporting column (11). The sand dune gravitational potential energy power generation equipment according to claim 2, characterized in that a power generation warehouse (7) is provided on the crawler vehicle (1), and the speed changer (5) and the generator (6) are both located in the power generation warehouse (7) , The power generation warehouse (7) and the living warehouse (12) are set up and down. The sand dune gravitational potential energy power generation equipment according to claim 3, characterized in that one end of the central shaft (13) is connected to the front supporting column (14), the central shaft (13) passes through the supporting column (11), and the central shaft (13) The other end of) is connected with the input shaft of the speed changer (5) through a transmission mechanism. The sand dune gravitational potential energy power generation equipment according to claim 5, characterized in that the big wheel (2) is located between the front support column (14) and the support column (11), the front support column (14) and the support column (11) ) Parallel arrangement before and after. The sand dune gravitational potential energy power generation equipment according to claim 5, characterized in that the lower end of the front support column (14) is connected with a floor stand (4), and the upper end of the front support column (14) is higher than that of the big wheel (2). At the upper end, the floor stand (4) has an inverted U-shaped structure. The sand dune gravitational potential energy power generation equipment according to claim 1, characterized in that the sand bucket (3) contains side bucket walls and a bottom plate connected up and down, and both sides of the upper part of the sand bucket (3) are provided with trunnions. (3) By connecting the trunnion to the big wheel (2), the sand bucket (3) can rotate around the trunnion; Each sand bucket (3) is connected with a sand bucket turning mechanism, and the sand bucket turning mechanism can make the sand bucket (3) rotate around the trunnion; Or, each sand bucket (3) is connected with a bottom plate opening and closing mechanism, and the bottom plate opening and closing mechanism can move or rotate the bottom plate. The sand dune gravitational potential energy power generation equipment according to claim 1, characterized in that the sand bucket (3) contains side bucket walls connected up and down and a spring door (35), the spring door (35) can rotate and automatically reset, and the side A door opening mechanism is provided outside the lower end of the bucket wall. The door opening mechanism includes a spring pin frame (31), a spring pin (32) and a spring (33). The sand dune gravity potential energy generation equipment also includes an overhead key (34), an overhead key ( 34) Located at the lower end of the big wheel (2), the overhead key (34) corresponds to the sand discharge position of the sand bucket (3), the spring pin holder (31) is fixed outside the lower end of the side bucket wall, and the spring pin ( 32) and the spring (33) are both connected with the spring pin holder (31), the spring pin (32) can move along the axis of the big wheel (2), the spring pin (32) has an L-shaped structure, and the spring pin (32) One end is provided with an upward bending section, and the spring (33) can reset the spring pin (32); When the sand bucket (3) is in the sand loading position, the spring door (35) is in a closed state, the spring door (35) and the other end of the spring pin (32) are connected up and down, and the spring pin (32) can block the spring door (35) Rotate When the sand bucket (3) is in the sand-out position, the upper bend section of the spring pin (32) touches the overhead key (34) to make the spring pin (32) separate from the spring door (35), and the spring door (35) is at The sand bucket (3) rotates from the closed state to the open state under the action of the gravity of the sand in the sand bucket (3). The sand dune gravitational potential energy power generation equipment according to claim 1, characterized in that the crawler vehicle (1) is provided with a sand discharging mechanism (9), and the entrance of the sand discharging mechanism (9) is located at the front of the big wheel (2). Below, the sand discharging mechanism (9) can transport the sand unloaded from the sand bucket (3).

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