Gravity energy storage train

Abstract

The invention discloses a gravity energy storage train which comprises a transport train and a transport track matched with the transport train, the transport train comprises multiple groups of transport carriages and universal joints used for sequentially connecting the multiple groups of transport carriages, driving plates are arranged on the two sides of a track undercarriage of each group of transport carriages respectively, and a switching mechanism matched with the driving plates is arranged in the track undercarriage; the conversion mechanism can convert the driving plate into a rail transportation driving plate or a storage yard stopping driving plate, and the storage yard stopping driving plate is used for being matched with a corresponding storage yard driving station to perform stopping driving and start transportation when entering a loading and unloading rail; and the rail transportation driving plate is used for friction fit transportation with a transportation driving station on the transportation rail. According to the invention, the wheel type smooth transportation on the transportation track is realized, and the accurate stopping of the transportation train on the loading and unloading track is also realized.

Description

Technical Field

[0001] This invention relates to the field of gravity energy storage system technology, specifically gravity energy storage trains. Background Technology

[0002] Gravity energy storage technology, as a highly efficient energy storage and release method, is widely used in power system peak shaving and frequency regulation. This technology stores gravitational potential energy by lifting an object to a high altitude; when energy needs to be released, this potential energy is converted into kinetic energy, which is then converted into electrical energy or other forms of energy through an energy conversion device. However, existing gravity energy storage devices still have many limitations in the energy conversion process, affecting the economic efficiency and reliability of their large-scale application. During the transfer of stacked blocks, the transport train needs to stop at the loading and unloading tracks of the upper and lower stockpiles for loading and unloading. After loading and unloading, it starts transporting on the transport track. The transport train drive method disclosed by the applicant in the previous paper all uses the drive wheel of the drive station and the drive plate of the transport train to achieve drive through friction. This structure can meet the normal operation on the transport track. However, when stopping at the upper and lower stockpiles, due to the friction transmission of the drive wheel and drive plate, there are problems such as inaccurate stopping position and easy slippage of the drive plate. Summary of the Invention

[0003] In view of the above-mentioned shortcomings in the existing technology, the purpose of this invention is to provide a gravity energy storage train.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows: The gravity energy storage train includes a transport train and transport tracks that cooperate with the transport train. The transport tracks include uphill tracks, downhill tracks, high-altitude connecting tracks, and low-altitude connecting tracks. The transport train includes multiple sets of transport carriages. The high-altitude and low-altitude connecting tracks are both connected to loading and unloading tracks. Multiple transport drive stations are arranged on the transport tracks, and at least one set of yard drive stations is provided on the loading and unloading tracks. Each set of transport carriages includes a railcar platform and a switching mechanism, wherein the railcar platform cooperates with the transport rails and loading / unloading rails. The track vehicle is provided with drive plates on both sides. The track vehicle is equipped with a conversion mechanism inside in conjunction with the drive plates. The conversion mechanism can convert the drive plates into track transport drive plates or yard docking drive plates. The yard docking drive plate is used to cooperate with the corresponding yard drive station to dock and start transport when entering the loading and unloading track. The track transport drive plate is used to frictionally cooperate with the transport drive station on the transport track for transport.

[0005] Furthermore, it also includes a first drive mechanism and a second drive mechanism, wherein the first drive mechanism is located in the starting area of ​​the loading and unloading track, and the second drive mechanism is located in the ending area of ​​the loading and unloading track; The first drive mechanism, the second drive mechanism, and the conversion mechanism cooperate with each other. The first drive mechanism can drive the conversion mechanism to convert the drive plate into a yard parking drive plate, and the second drive mechanism can drive the conversion mechanism to convert the drive plate into a rail transport drive plate.

[0006] Furthermore, the conversion mechanism includes a bidirectional motion module and a gear table. The track vehicle disc has a cavity inside, and the bidirectional motion module is housed inside the cavity. The bidirectional motion module includes two sets of motion tables capable of bidirectional linear motion. The drive plate is provided with multiple sets of tooth holes, and each set of the moving platform is fixedly connected to the tooth platform through a connecting frame. The tooth platform is provided with teeth corresponding to each set of tooth holes. The first drive mechanism, the second drive mechanism and the bidirectional motion module cooperate to enable the bidirectional motion module to drive the gear table to move. When the track transport drive plate is in operation, the teeth extend into the interior and the drive plate is flat. When the yard stops the drive plate, the teeth pass through the tooth holes and the drive plate is rack-shaped. The yard drive station includes a drive gear that engages with the yard docking drive plate, and the transport drive station includes a flyboard that engages with the rail transport drive plate.

[0007] Furthermore, the bidirectional motion module also includes a guide post, a first lead screw, and a second lead screw. The guide post is fixedly connected inside the cavity, and two sets of motion tables are slidably connected to the guide post. The first lead screw is threadedly connected to one set of motion tables, and the second lead screw is threadedly connected to the other set of motion tables. The first lead screw and the second lead screw are fixedly connected by a connecting shaft. The connecting shaft is powered by a power input component, which cooperates with the first drive mechanism and the second drive mechanism.

[0008] Furthermore, the power input component includes a worm gear, a worm, an extension shaft, an input shaft, and a gear. The worm gear is fixedly connected to the connecting shaft, and the worm is rotatably connected to the cavity. The worm meshes with the worm gear, and the extension shaft is fixedly connected to the worm. The input shaft is rotatably connected to the track vehicle panel, and the input shaft is poweredly connected to the extension shaft. One end of the input shaft is fixedly connected to the gear. The first driving mechanism includes a first rack that meshes with the gear, and the second driving mechanism includes a second rack that meshes with the gear. The direction of rotation of the gear when it passes the first rack is opposite to the direction of rotation of the gear when it passes the second rack.

[0009] Furthermore, the yard drive station also includes a first base, a first moving frame, a first telescopic drive component, and a first drive motor. The first moving frame is slidably connected to the first base, and the first telescopic drive component is fixedly connected to the first base. The first telescopic drive component cooperates with the first moving frame. The first drive motor is fixedly connected to the first moving frame, and the drive gear is rotatably connected to the first moving frame. The drive motor and the drive gear are poweredly connected.

[0010] Furthermore, the transport drive station also includes a second base, a second motion frame, a second telescopic drive component, and a second drive motor. The second motion frame is slidably connected to the second base, and the second telescopic drive component is fixedly connected to the second base. The second telescopic drive component cooperates with the second motion frame. The second drive motor is fixedly connected to the second motion frame, and the flying disc is rotatably connected to the second motion frame. The second drive motor is poweredly connected to the flying disc.

[0011] Furthermore, multiple transport carriages are connected in sequence via universal joints.

[0012] Furthermore, the track carriage is provided with a placement slot for placing blocks. The beneficial effects of this invention are: 1. This invention arranges a transport drive station on the transport track and a yard drive station on the loading and unloading track. A conversion mechanism allows the drive plate to be converted into a track transport drive plate or a yard docking drive plate. When the transport train travels on the transport track, its drive plate is connected to the transport drive station via friction transmission in the form of a track transport drive plate. When the transport train enters the loading and unloading section, the drive plate is connected to the yard drive station in the form of a yard docking drive plate for docking and starting transport after loading and unloading. This arrangement satisfies both the requirements of smooth wheeled transport on the transport track and the use of gear and rack transmission for docking on the loading and unloading track. Gear transmission reduces the problems of low docking accuracy and slippage during starting that occur with wheel friction transmission. Gear transmission can precisely control the transmission accuracy of the gear and rack through the drive motor, thereby improving the docking accuracy of the train on the loading and unloading track. Furthermore, the gear and rack method also avoids slippage between the drive wheel and the drive plate when the transport train starts with high power.

[0013] 2. When the transport train passes the first drive mechanism, the first drive mechanism can replace the drive plate with the yard parking drive plate. When the transport train passes the second drive mechanism, the second drive mechanism replaces the drive plate with the rail transport drive plate. In this way, through the setting of the first drive mechanism and the second drive mechanism, the conversion mechanism can be automatically controlled, reducing operations and increasing efficiency. 3. The conversion mechanism includes gears, the first drive mechanism includes a first rack that cooperates with it, and the second drive mechanism includes a second rack that cooperates with it. By using the driving force of the drive station on the transport train, the gear can pass through the first rack to complete the loading and unloading. After starting the transport, the gear can pass through the second rack, thus realizing the operation of the conversion mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the transport train structure in this invention; Figure 3 This is a schematic diagram of the structure of the placement groove in this invention; Figure 4 This is a schematic diagram of the conversion mechanism in this invention; Figure 5 This is a schematic diagram of the structure of the yard drive station and the transport car in this invention. Figure 6 for Figure 5 Detailed structural diagram of the middle C section; Figure 7 This is a schematic diagram of the structure of the transport drive station and the transport carriage in this invention. Figure 8 for Figure 7 Detailed structural diagram of part b in the middle; Figure 9 This is a schematic diagram of the structure of the transport carriage when it passes the first drive mechanism in this invention; Figure 10 This is a schematic diagram of the structure of the transport carriage when it passes the second drive mechanism in this invention. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1 , Figure 2The existing gravity energy storage system includes a high-altitude stockpile 100, a low-altitude stockpile 200, a transport track 300, a transport train 400, a transport drive station 600, and a power station. The transport track 300 is located between the high-altitude stockpile 100 and the low-altitude stockpile 200. Both the high-altitude stockpile 100 and the low-altitude stockpile 200 are equipped with corresponding loading and unloading tracks 800 for the transport train 400 to stop at the loading and unloading positions and complete loading and unloading. The transport track 300 includes an uphill track 301, a downhill track 302, a high-altitude connecting track 303, and a low-altitude connecting track 304. The high-altitude connecting track 303 corresponds to the high-altitude stockpile 100, and the low-altitude connecting track 304 corresponds to the low-altitude stockpile. Corresponding to 200, a transport train 400 is provided on the transport track 300. The transport train 400 includes multiple sets of transport carriages 401 and universal joints 402 for sequentially connecting the multiple sets of transport carriages 401. The uphill track 301, the high-altitude connecting track 303 and the low-altitude connecting track 304 are provided with transport drive stations 600. The transport train 400 is driven to the high-altitude stockpile 100 or the low-altitude stockpile 200 through the transport drive stations 600. When entering the high-altitude stockpile 100 or the low-altitude stockpile 200, the transport train 400 stops at the loading and unloading station area. The side of the downhill track 302 is equipped with a power station. When the transport train 400 slides down from the high-altitude stockpile 100 by gravity, the power station can generate electricity. In summary, when power is sufficient, the transport train 400 carries blocks from the low-altitude stockpile 200 to the high-altitude stockpile 100 via the uphill track 301 and unloads them, completing the gravity energy storage mode. When power is scarce during peak periods, the transport train 400 loads blocks from the high-altitude stockpile 100, and after the transport train 400 carries the blocks downhill via the downhill track 302 to generate electricity, it is transported to the low-altitude stockpile for unloading, completing the power generation mode. Please see Figures 2-4 This embodiment discloses a gravity energy storage train applied to a gravity energy storage system. Both the high-altitude connecting track 303 and the low-altitude connecting track 304 are connected to loading and unloading tracks 800. Multiple transport drive stations 600 are arranged on the transport track 300, and at least one set of storage yard drive stations 500 are provided on the loading and unloading track 800. Based on this, each set of transport carriages 401 includes a railcar 4011 and a conversion mechanism 700. The railcar 4011 cooperates with the transport track 300, and its railcar 4011 is provided with a placement groove 4013. The placement groove 4013 can be used to place blocks, and the edge of the blocks is limited by the placement groove 4013. The railcar 4011 has a drive plate 4012 on each side. Inside the 4011, there is a conversion mechanism 700 that works with the drive plate 4012. The conversion mechanism 700 can convert the drive plate 4012 into a rail transport drive plate A or a yard docking drive plate B. The yard docking drive plate B is used to cooperate with the corresponding yard drive station 500 to dock and start transport when entering the loading and unloading rail 800. The rail transport drive plate A is used to connect with the transport drive station 600 on the transport rail 300 through friction transmission.

[0017] Specifically, the conversion mechanism 700 includes a bidirectional motion module and a gear table 711, that is, a cavity is provided inside the railcar plate 4011, and a bidirectional motion module is provided inside the cavity. The bidirectional motion module includes a motion table 701, a guide column 702, a first lead screw 703, and a second lead screw 704. Specifically, the guide column 702 is fixedly connected inside the cavity, and two sets of motion tables 701 are slidably connected to the guide column 702. One set of motion tables 701 is threadedly connected to the first lead screw 703, and the other set of motion tables 701 is threadedly connected to the second lead screw 704. The first lead screw 703 and the second lead screw 704 are fixedly connected by a connecting shaft. When the first lead screw 703 and the second lead screw 704 rotate, the two sets of motion tables 701 can move away from or towards each other. Furthermore, a power input component is connected to the connecting shaft to transmit power to the connecting shaft. In this embodiment, the power input component includes a worm gear 705, a worm 706, an extension shaft 707, an input shaft 708, and a gear 709. Specifically, a worm gear 705 is fixedly connected to the connecting shaft, a worm 706 is rotatably connected to the cavity, the worm 706 meshes with the worm gear 705, an extension shaft 707 is fixedly connected to the worm 706, and an input shaft 708 is rotatably connected to the railcar disc 4011. 8 is powered by the extension shaft 707. One end of the input shaft 708 is fixedly connected to a gear 709. When the gear 709 rotates, the power is transmitted to the extension shaft 707 through the input shaft 708, and then to the worm gear 706. The worm gear 706 drives the worm wheel 705 to rotate. The power connection between the input shaft 708 and the extension shaft 707 can be achieved by multiple sets of bevel gears and mating shafts, so that the gear 709 is located on the side of the railcar disc 4011 and close to the upper part to avoid interference with the drive plate 4012. Furthermore, the drive plate 4012 is provided with multiple sets of toothed holes 4014. Each set of motion tables 701 is fixedly connected to a toothed platform 711 via a connecting frame 710. The toothed platform 711 is provided with teeth 712 corresponding to each set of toothed holes 4014. Through the bidirectional motion module, the two sets of motion tables 701 can be driven to move linearly in opposite directions, thereby causing the two sets of toothed platforms 711 to move in opposite directions. When the teeth 712 extend into the interior, the drive plate 4012 is flat, which is the rail transport drive plate A; when the teeth 712 protrude out of the toothed holes 4014, the drive plate 4012 is rack-shaped, which is the yard parking drive plate B. To correspond with the above structure, please refer to the following embodiment: Figure 5 , Figure 6 The yard drive station 500 includes a drive gear 501, a first base 502, a first moving frame 503, a first telescopic drive component 504, and a first drive motor 505. Specifically, the first moving frame 503 is slidably connected to the first base 502, and the first telescopic drive component 504 (electric telescopic cylinder, hydraulic telescopic cylinder, etc.) is fixedly connected to the first base 502. The first telescopic drive component 504 cooperates with the first moving frame 503. The first drive motor 505 is fixedly connected to the first moving frame 503, and the drive gear 501 is rotatably connected to the first moving frame 503. The motor 505 is powered by the drive gear 501. When the transport train 400 enters the loading and unloading track 800, the drive plate 4012 is converted into a yard parking drive plate B through the conversion mechanism 700. At this time, the drive plate 4012 is rack-shaped and meshes with the drive gear 501. The gear transmission reduces the problem of low parking accuracy caused by wheel friction transmission. The rack transmission can precisely control the transmission accuracy of the gear and rack through the drive motor, thereby improving the parking accuracy on the loading and unloading track. In addition, the use of the rack and rack can also improve the starting power of the transport train.

[0018] Please see Figure 7 , Figure 8The transport drive station 600 includes a flying disc 601, a second base 602, a second motion frame 603, a second telescopic drive component 604, and a second drive motor 605. Specifically, the second motion frame 603 is slidably connected to the second base 602, the second telescopic drive component 604 is fixedly connected to the second base 602 and cooperates with the second motion frame 603, a generator 605 is fixedly connected to the second motion frame 603, and the flying disc 601 is rotatably connected to the second motion frame 603. The second drive motor 605 is connected to the flying disc 601. The disc 601 is connected by friction drive. When the transport train 400 is transporting on the transport track 300, the disc 601 of the transport drive station 600 is connected to the drive plate by friction drive, which drives the transport train 400 to circulate between the low-altitude stockpile 200 and the high-altitude stockpile 100. The disc wheel drive on the transport track reduces the jamming caused by other drive methods such as rack and pinion, and the transport train always maintains continuous transport on the transport track 3. Therefore, the use of wheel friction drive not only ensures its smooth power transmission, but also meets the power requirements.

[0019] To go further, please refer to Figure 1 , Figure 9 , Figure 10 To achieve automatic conversion of the conversion mechanism 700, it also includes a first drive mechanism 900 and a second drive mechanism 1000, wherein the first drive mechanism 900 is located in the starting area of ​​the loading and unloading track, and the second drive mechanism 1000 is located in the ending area of ​​the loading and unloading track. Furthermore, the first drive mechanism 900 and the second drive mechanism 1000 cooperate with the conversion mechanism 700 so that the first drive mechanism 900 can drive the conversion mechanism 700 to convert the drive plate 4012 into a yard parking drive plate B, and the second drive mechanism 1000 can drive the conversion mechanism 700 to convert the drive plate 4012 into a rail transport drive plate A. Specifically, the first drive mechanism 900 includes a first rack 901 that meshes with the gear 709, and the second drive mechanism 1000 includes a second rack 1001 that meshes with the gear 709. The rotation direction of the gear 709 when passing the first rack 901 is opposite to the rotation direction of the gear 709 when passing the second rack 1001. For example, the first rack 901 is located above the gear 709, and the second rack 1001 is located below the gear 709. When the first gear 706 moves in the same direction, the rotation direction of the gear 709 is opposite. In summary, when the transport train 400 moves from the high-altitude connecting track 303 to the low-altitude connecting track 304 and from the low-altitude connecting track 304 to the high-altitude connecting track 303 on the transport track 300, its drive plate 4012 adopts the form of track transport drive plate A, which is planar, and the corresponding drive wheel of the transport drive station 600 is a flying disc 601 structure, thereby realizing wheel friction transmission transport. When the transport train 400 enters the starting area of ​​the loading / unloading track 800 of the corresponding low-altitude stockpile 200 or high-altitude stockpile 100 from the low-altitude connecting track 304 or the high-altitude connecting track 303, the first drive mechanism 900 can drive the conversion mechanism 700 to convert the drive plate 4012 into the stockpile docking drive plate B. This realizes that the drive plate of the transport car 401 of the transport train 400 is sequentially switched to the stockpile docking drive plate B, which is rack-shaped and meshes with the drive gear 501 of the stockpile drive station 500 to achieve its gear transmission. When docking at the loading / unloading point... When the material is at the work station, the speed of the first drive motor 505 is controlled to precisely drive the transport train 400 to stop at the work station position through gear transmission. After loading and unloading are completed, the yard drive station 500 drives the transport train 400 to start through gear transmission. When the transport train travels to the end area of ​​the loading and unloading track, the second drive mechanism 1000 drives the conversion mechanism 700 to convert the drive plate 4012 into the track transport drive plate A, so that the drive plate of the transport car 401 is switched to the track transport drive plate A in sequence. It is a planar form and works with the transport drive station to realize its wheel transmission transport.

[0020] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gravity energy storage train, comprising a transport train (400) and a transport track (300) cooperating with the transport train, the transport track (300) comprising an uphill track (301), a downhill track (302), a high-altitude connecting track (303), and a low-altitude connecting track (304), the transport train (400) comprising multiple sets of transport carriages (401), characterized in that: The high-altitude connecting track (303) and the low-altitude connecting track (304) are both connected to loading and unloading tracks (800). Multiple transport drive stations (600) are arranged on the transport track (300), and at least one set of yard drive stations (500) are set on the loading and unloading track. Each of the transport carriages (401) includes a railcar (4011) and a conversion mechanism (700), wherein the railcar (4011) cooperates with the transport rail (300) and the loading / unloading rail (800). The track vehicle plate (4011) is provided with drive plates (4012) on both sides. The track vehicle plate (4011) is provided with the conversion mechanism (700) in cooperation with the drive plates (4012). The conversion mechanism (700) can convert the drive plate (4012) into a track transport drive plate (A) or a yard docking drive plate (B). The yard docking drive plate (B) is used to cooperate with the corresponding yard drive station (500) to dock and start transport when entering the loading and unloading track (800). The track transport drive plate (A) is used to cooperate with the transport drive station (600) on the transport track (300) for friction transport.

2. The gravity energy storage train according to claim 1, characterized in that: It also includes a first drive mechanism (900) and a second drive mechanism (1000), wherein the first drive mechanism (900) is located in the starting area of ​​the loading and unloading track (800) and the second drive mechanism (1000) is located in the ending area of ​​the loading and unloading track (800); The first drive mechanism (900), the second drive mechanism (1000), and the conversion mechanism (700) cooperate with each other. The first drive mechanism (900) can drive the conversion mechanism (700) to convert the drive plate (4012) into a yard parking drive plate (B), and the second drive mechanism (1000) can drive the conversion mechanism (700) to convert the drive plate (4012) into a rail transport drive plate (A).

3. The gravity energy storage train according to claim 2, characterized in that: The conversion mechanism (700) includes a bidirectional motion module and a gear table (711). The track plate (4011) has a cavity inside, and the bidirectional motion module is provided inside the cavity. The bidirectional motion module includes two sets of motion tables (701) capable of bidirectional linear motion. The drive plate (4012) is provided with multiple sets of tooth holes (4014), and each set of motion table (701) is fixedly connected to the tooth platform (711) through the connecting frame (710). The tooth platform (711) is provided with teeth (712) corresponding to each set of tooth holes (4014). The first drive mechanism (900), the second drive mechanism (1000) cooperate with the bidirectional motion module so that the bidirectional motion module can drive the gear table (711) to move. When the track transport drive plate (A) is in motion, the teeth (712) extend into the interior. The drive plate (4012) is flat. When the yard docking drive plate (B) is in motion, the teeth (712) pass through the tooth hole (4014). The drive plate (4012) is rack-shaped. The yard drive station (500) includes a drive gear (501) that cooperates with the yard docking drive plate (B), and the transport drive station (600) includes a fly disc (601) that cooperates with the rail transport drive plate (A).

4. The gravity energy storage train according to claim 3, characterized in that: The bidirectional motion module further includes a guide post (702), a first lead screw (703), and a second lead screw (704). The guide post (702) is fixedly connected inside the cavity. Two sets of motion tables (701) are slidably connected to the guide post (702). The first lead screw (703) is threadedly connected to one set of motion tables (701), and the second lead screw (704) is threadedly connected to the other set of motion tables (701). The first lead screw (703) and the second lead screw (704) are fixedly connected by a connecting shaft. The connecting shaft is powered by a power input component, which cooperates with the first drive mechanism (900) and the second drive mechanism (1000).

5. The gravity energy storage train according to claim 4, characterized in that: The power input component includes a worm gear (705), a worm (706), an extension shaft (707), an input shaft (708), and a gear (709). The worm gear (705) is fixedly connected to the connecting shaft, and the worm (706) is rotatably connected to the cavity. The worm (706) meshes with the worm gear (705), and the extension shaft (707) is fixedly connected to the worm (706). The input shaft (708) is rotatably connected to the track carriage (4011), and the input shaft (708) is poweredly connected to the extension shaft (707). One end of the input shaft (708) is fixedly connected to the gear (709). The first drive mechanism (900) includes a first rack (901) that meshes with the gear (709), and the second drive mechanism (1000) includes a second rack (1001) that meshes with the gear (709). The rotation direction of the gear (709) when passing the first rack (901) is opposite to the rotation direction of the gear (709) when passing the second rack (1001).

6. The gravity energy storage train according to claim 5, characterized in that: The yard drive station (500) further includes a first base (502), a first moving frame (503), a first telescopic drive component (504), and a first drive motor (505). The first moving frame (503) is slidably connected to the first base (502), and the first telescopic drive component (504) is fixedly connected to the first base (502). The first telescopic drive component (504) cooperates with the first moving frame (503). The first drive motor (505) is fixedly connected to the first moving frame (503), and the drive gear (501) is rotatably connected to the first moving frame (503). The drive motor (505) is poweredly connected to the drive gear (501).

7. The gravity energy storage train according to claim 6, characterized in that: The transport drive station (600) further includes a second base (602), a second motion frame (603), a second telescopic drive member (604), and a second drive motor (605). The second motion frame (603) is slidably connected to the second base (602), and the second telescopic drive member (604) is fixedly connected to the second base (602). The second telescopic drive member (604) cooperates with the second motion frame (603). The second drive motor (605) is fixedly connected to the second motion frame (603), and the flying disc (601) is rotatably connected to the second motion frame (603). The second drive motor (605) is poweredly connected to the flying disc (601).

8. The gravity energy storage train according to claim 1, characterized in that: Multiple transport carriages (401) are connected in sequence via universal joints (402).

9. The gravity energy storage train according to claim 1, characterized in that: The track carriage (4011) is provided with a placement slot (4013) for placing blocks.

Images