A control method for pressure-engaged conveyor rollers and a battery rack / warehouse

Abstract

This invention discloses a control method for a pressure-engaged conveyor roller conveyor, as well as a battery storage rack and warehouse, relating to the technical fields of conveyor rollers, battery storage racks, and battery storage warehouses. This pressure-engaged conveyor roller conveyor solves the problem of increased energy consumption caused by the rotation (idling) of rollers without loads on traditional conveyor rollers, where the rollers are directly connected to the drive structure and not all rollers are transporting objects. The battery storage rack addresses the issue that existing battery storage racks lack conveyor equipment, requiring manual stacking of batteries. Furthermore, if the battery storage rack directly uses the structure of a traditional conveyor roller conveyor for position movement, batteries located further inside the rack cannot move (e.g., close to the back panel), leading to system malfunctions.

Description

Technical Field

[0001] This invention relates to the technical fields of transport rollers, battery racks, and battery storage warehouses, specifically a control method for pressure-engaged transport roller conveyors and a battery rack and warehouse. Background Technology

[0002] A storage battery is a device that directly converts chemical energy into electrical energy. It is designed for rechargeability. Storage batteries typically use a lead-based grid (also called a lattice) filled with spongy lead as the negative electrode and a lead-based grid filled with lead dioxide as the positive electrode. Dilute sulfuric acid with a density of 1.26-1.33 g / ml is used as the electrolyte. During discharge, metallic lead, acting as the negative electrode, undergoes oxidation to produce lead sulfate; lead dioxide, acting as the positive electrode, undergoes reduction to produce lead sulfate. When charged with direct current, elemental lead and lead dioxide are generated at the two electrodes, respectively. After the power source is removed, it returns to its state before discharge, forming a chemical cell.

[0003] Conveyor rollers are devices commonly used for transporting objects. In traditional roller conveyors, the rollers are directly connected to the drive structure. However, not all rollers on the roller conveyor are transporting objects. Therefore, the rotation (idling) of rollers that are not carrying objects will inevitably increase the energy consumption of the system.

[0004] Because existing battery racks lack transportation equipment, the stacking of batteries mainly relies on manual labor. If the battery racks directly adopt the structure of traditional conveyor rollers to achieve position movement, the batteries located inside the racks cannot be moved (e.g., close to the back panel), which will lead to system malfunction.

[0005] Existing battery racks are mostly multi-layered, but batteries are usually handled on one layer during transport. Therefore, setting up a power system on each layer would increase the overall investment cost of the system.

[0006] When bevel gears and drive shafts are used to connect multiple layers of frames, the transport directions of the roller conveyors of adjacent layers (odd-numbered layers and even-numbered layers) are opposite without changing the direction of the power system. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a control method for pressure-engaged conveyor rollers, solving the following problems:

[0009] 1. In traditional roller conveyors, the rollers are directly connected to the drive structure. However, not all rollers on the roller conveyor are transporting objects. Therefore, the rotation (idling) of rollers that are not carrying objects will inevitably cause the system's energy consumption to increase.

[0010] 2. When an object does not move on the roller, the power system of that roller should be disconnected in time to avoid the jamming of a single roller causing the entire roller conveyor to malfunction.

[0011] To address the shortcomings of existing technologies, this invention provides a battery storage rack, which solves the following technical problems:

[0012] 1. Due to the lack of transportation equipment, the stacking of batteries in existing battery racks mainly relies on manual labor. If the battery racks directly adopt the structure of traditional conveyor rollers to achieve position movement, the batteries located in the inner part of the racks cannot be moved (such as being close to the back panel), which will lead to system malfunction.

[0013] 2. Existing battery racks are mostly multi-layered, but batteries are usually handled on one layer during transport. Therefore, setting up a power system on each layer would increase the overall investment cost of the system.

[0014] 3. When bevel gears and drive shafts are used to connect multi-layer frames, the transport directions of the roller conveyors of adjacent layers (odd-numbered layers and even-numbered layers) are opposite without changing the direction of the power system.

[0015] (II) Technical Solution

[0016] To achieve the above objectives, the present invention provides the following technical solution: a pressure-engaged conveyor roller conveyor for transporting objects, comprising a roller structure;

[0017] The roller structure includes a roller, a gear shaft, a roller gear, and an elastic structure;

[0018] The roller is mounted above the gear shaft, and the roller is connected to the roller gear.

[0019] Gear A is fitted onto the gear shaft;

[0020] The roller is mounted on an elastic structure. When the roller is compressed, the elastic structure contracts and enables the roller gear to mesh with gear A.

[0021] Preferably, there are multiple roller structures, which are connected side by side through a transmission structure A.

[0022] Preferably, the roller is sleeved on the roller shaft and can rotate relative to the roller shaft, and the elastic structure includes a spring, the upper end of which is connected to the roller shaft and the lower end of which is connected to the limiting block.

[0023] A battery rack includes a multi-layer rack, which includes a middle plate and a right side plate. The middle plate is disposed to the left of the right side plate. The multi-layer rack includes an odd-numbered rack and an even-numbered rack. The odd-numbered rack includes a pressure-engaged conveyor roller. The roller shaft is mounted between the middle plate and the right side plate. The gear shaft is mounted between the middle plate and the right side plate. The middle plate and the right side plate have sliding holes for the roller shaft to move relative to the gear shaft.

[0024] Preferably, the even-numbered layer frame includes an even-numbered layer roller structure, which includes an even-numbered layer roller, an even-numbered layer gear shaft, an even-numbered layer roller gear, and an elastic structure. The even-numbered layer roller is mounted above the even-numbered layer gear shaft, the even-numbered layer roller is connected to the even-numbered layer roller gear, and an even-numbered layer gear A is sleeved on the even-numbered layer gear shaft.

[0025] The even-numbered rollers are mounted on an elastic structure. When the even-numbered rollers are compressed, the elastic structure contracts and enables the even-numbered gear A to drive the even-numbered roller gear to rotate.

[0026] It includes an even number of roller shafts, wherein the even number of rollers are sleeved on the even number of roller shafts and are rotatable relative to the even number of roller shafts;

[0027] The even-numbered roller structure consists of multiple layers, which are connected side by side through an even-numbered layer transmission structure A.

[0028] The even-numbered layer rollers and even-numbered layer gears are both mounted between the middle plate and the right side plate;

[0029] The middle plate and the right side plate are provided with even-numbered sliding holes for the even-numbered layer roller shafts to move relative to the even-numbered layer gear shafts.

[0030] The even-numbered gear shafts are connected to each other via transmission structure B.

[0031] Preferably, the transmission structure B includes a bevel gear A and an even-numbered layer of bevel gears A. The bevel gear A and the even-numbered layer of bevel gears A are respectively sleeved on the left end of the gear shaft and the even-numbered layer of gear shaft. A transmission shaft A is provided between the bevel gear A and the even-numbered layer of bevel gears A. The upper and lower ends of the transmission shaft A are respectively connected to bevel gear C and bevel gear B. The bevel gear C and bevel gear B mesh with the even-numbered layer of bevel gears A and bevel gear A, respectively.

[0032] Preferably, it includes a drive shaft, which is mounted between the even-numbered layer rollers and the even-numbered layer gear shaft. A drive gear is sleeved on the drive shaft, and the drive gear meshes with the even-numbered layer gear A. When the even-numbered layer rollers are compressed, the elastic structure contracts and enables the even-numbered layer roller gear to mesh with the drive gear (91a).

[0033] Preferably, the transmission structure A includes pulley A and pulley B, which are sleeved on the gear shaft. The four consecutive adjacent roller structures are roller A, roller B, roller C, and roller D. Roller B and roller C are driven by pulley A and belt. Roller B and roller A, as well as roller C and roller D, are driven by pulley B and belt.

[0034] Preferably, an electromagnetic clutch is provided between the transmission structure A and the gear A, and an even-numbered layer electromagnetic clutch is provided between the even-numbered layer transmission structure A and the even-numbered layer gear A. Each layer of the multi-layer frame is provided with an object sensor, and the object sensor of each layer is electrically connected to the electromagnetic clutch of the corresponding layer. When an object moves to a preset position, the object sensor can send a signal to put the electromagnetic clutch into a non-interlocking state.

[0035] A battery storage warehouse is provided, in which battery racks are placed side by side with their openings facing the same direction. A guide rail is provided in front of the battery racks, and a battery handling robot is mounted on the guide rail. The battery handling robot includes a lifting rod, and a robotic arm is connected to the lifting rod.

[0036] (III) Beneficial Effects

[0037] This invention provides a pressure-engaged conveyor roller conveyor. It has the following advantages:

[0038] The pressure-engaged conveyor rollers use a pressure-triggered gear engagement method, which allows the rollers to rotate only when they are under load, avoiding the idling of unloaded rollers and effectively improving the system's working efficiency.

[0039] This invention provides a battery storage rack. It has the following advantages:

[0040] (1) The battery rack uses a roller conveyor structure to transport the batteries on the rack. The odd-numbered layers are connected by a rotating shaft and a bevel gear. A gear is added below the rollers of the even-numbered layers to change the rotation direction of the rollers of the even-numbered layers so that the rotation direction of the even-numbered layers is the same as that of the odd-numbered layers.

[0041] (2) This battery rack utilizes a combination of physical sensors and an electromagnetic clutch. After an object is transported to a preset position, the electromagnetic clutch can be de-engaged, allowing the roller carrying the object to disengage from the power system. By controlling the engagement and disengagement of the electromagnetic clutch connected to the transmission system on a certain layer, the power transmission and non-transmission of power to that layer of roller conveyor can be controlled. Attached Figure Description

[0042] Figure 1This is a front view of the battery rack structure of the present invention;

[0043] Figure 2 for Figure 1 Enlarged view of section A in the image;

[0044] Figure 3 for Figure 1 Enlarged view of section B in the image;

[0045] Figure 4 for Figure 1 View A in the middle;

[0046] Figure 5 for Figure 1 View B in the middle;

[0047] Figure 6 for Figure 1 The C-direction view in the middle;

[0048] Figure 7 for Figure 1 AA section diagram;

[0049] Figure 8 This is a left view of the battery rack structure of the present invention;

[0050] Figure 9 This is a schematic diagram illustrating the connection between the electromagnetic clutch and the object sensor of the present invention.

[0051] Figure 10 This is a schematic diagram illustrating the connection method between the electromagnetic clutch and the object sensor with a controller according to the present invention.

[0052] Figure 11 This is a schematic diagram of the battery storage warehouse structure of the present invention.

[0053] In the diagram: 1. Gear shaft; 11. Gear A; 12. Bevel gear A; 13. Pulley A; 14. Pulley B; 15. Electromagnetic clutch; 2. Roller shaft; 21. Roller gear; 22. Roller; 23. Spring; 24. Limiting block; 3. Drive shaft A; 31. Bevel gear B; 32. Bevel gear C; 33. Bearing bracket A; 4. Drive shaft B; 41. Bevel gear D; 42. Bevel gear E; 43. Bearing bracket B; 5. Left side plate; 6. Middle plate; 61. Sliding hole; 7. Right side plate; 8. Back plate; 10. Object sensor.

[0054] 1a, even-numbered layer gear shaft; 11a, even-numbered layer gear A; 12a, even-numbered layer bevel gear A; 13a, even-numbered layer pulley A; 14a, even-numbered layer pulley B; 15a, even-numbered layer electromagnetic clutch; 2a, even-numbered layer roller shaft; 21a, even-numbered layer roller gear; 22a, even-numbered layer roller; 23a, even-numbered layer spring; 24a, even-numbered layer limit block; 9a, drive shaft; 61a, even-numbered layer sliding hole; 91a, drive gear. Detailed Implementation

[0055] 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.

[0056] Example 1: A basic structure to address the problem that in traditional roller conveyors, the rollers are directly connected to the drive structure, but not all rollers on the conveyor are transporting objects. Therefore, the rotation of rollers without load inevitably increases the system's energy consumption.

[0057] A pressure-engaged conveyor roller for transporting objects includes a roller structure comprising a roller 22, a gear shaft 1, a roller gear 21, and an elastic structure.

[0058] Roller 22 is mounted above gear shaft 1 and is connected to roller gear 21;

[0059] Gear A11 is fitted onto gear shaft 1;

[0060] Roller 22 is mounted on an elastic structure. When roller 22 is compressed, the elastic structure contracts and enables roller gear 21 to mesh with gear A11.

[0061] in:

[0062] The roller structure consists of multiple rollers, which are connected side by side through a transmission structure A;

[0063] It includes a roller shaft 2, a roller 22 sleeved on the roller shaft 2 and capable of rotating relative to the roller shaft 2, and the elastic structure can be a spring structure: including a spring 23, the upper end of the spring 23 is connected to the roller shaft 2 and the lower end is connected to the limiting block 24.

[0064] Roller 2 and gear shaft 1 can be mounted on two plate structures, and the plate structures need to have structures (such as sliding holes, sliding grooves, etc.) to cooperate with the movement of roller 2.

[0065] Example 2: A basic structure to address the problem that existing battery racks are mostly multi-layered, but since batteries are typically handled on a single layer during transport, installing a power system on each layer would increase the overall system investment cost.

[0066] A battery rack includes a multi-layer rack, which includes a middle plate 6 and a right side plate 7. The middle plate 6 is located to the left of the right side plate 7. The multi-layer rack includes an odd-numbered rack and an even-numbered rack. The odd-numbered rack includes a pressure-engaged conveyor roller. A roller shaft 2 is mounted between the middle plate 6 and the right side plate 7. A gear shaft 1 is mounted between the middle plate 6 and the right side plate 7. The middle plate 6 and the right side plate 7 are provided with sliding holes 61 for the roller shaft 2 to move relative to the gear shaft 1.

[0067] The even-numbered layer frame includes an even-numbered layer roller structure, which includes an even-numbered layer roller 22a, an even-numbered layer gear shaft 1a, an even-numbered layer roller gear 21a, and an elastic structure. The even-numbered layer roller 22a is mounted above the even-numbered layer gear shaft 1a and is connected to the even-numbered layer roller gear 21a. An even-numbered layer gear A11a is sleeved on the even-numbered layer gear shaft 1a.

[0068] The even-numbered layer rollers 22a are mounted on an elastic structure. When the even-numbered layer rollers 22a are compressed, the elastic structure contracts and enables the even-numbered layer gear A11a to drive the even-numbered layer roller gear 21a to rotate.

[0069] It includes an even-numbered layer of roller shafts 2a, and an even-numbered layer of rollers 22a sleeved on the even-numbered layer of roller shafts 2a and capable of rotating relative to the even-numbered layer of roller shafts 2a;

[0070] There are multiple even-numbered roller structures, which are connected side by side through an even-numbered transmission structure A;

[0071] Transmission structure A includes pulley A13 and pulley B14, which are mounted on gear shaft 1. The four consecutive adjacent roller structures are roller A, roller B, roller C, and roller D. Roller B and roller C are driven by pulley A13 and belt, while roller B and roller A, as well as roller C and roller D, are driven by pulley B14 and belt.

[0072] Even-numbered layer roller shafts 2a and even-numbered layer gear shafts 1a are both mounted between the middle plate 6 and the right side plate 7;

[0073] The middle plate 6 and the right side plate 7 are provided with even-numbered sliding holes 61a for even-numbered layer roller shafts 2a to move relative to even-numbered layer gear shafts 1a.

[0074] The even-numbered gear shaft 1a is connected to the gear shaft 1 via a transmission structure B.

[0075] The transmission structure B includes a bevel gear A12 and an even-numbered layer bevel gear A12a. The bevel gear A12 and the even-numbered layer bevel gear A12a are respectively sleeved on the left end of the gear shaft 1 and the even-numbered layer gear shaft 1a. A transmission shaft A3 is provided between the bevel gear A12 and the even-numbered layer bevel gear A12a. The upper and lower ends of the transmission shaft A3 are respectively connected to bevel gear C32 and bevel gear B31. The bevel gear C32 and bevel gear B31 mesh with the even-numbered layer bevel gear A12a and bevel gear A12a, respectively.

[0076] In this embodiment, even-numbered layers are connected to adjacent odd-numbered layers by bevel gears and drive shafts. When gear shaft 1 rotates clockwise, it drives drive shaft A3 to rotate to the right. Drive shaft A3 drives gear shaft 1a to rotate counterclockwise. As a result, even if the direction of the power structure remains unchanged, the transport directions of odd-numbered layers and even-numbered layers are different. This problem will be solved in embodiment 3.

[0077] Example 3: Basic structure for solving the problem of opposite transport directions of adjacent odd-numbered and even-numbered roller conveyors when using bevel gears and drive shafts to connect multi-layer frames without changing the direction of the power system.

[0078] Based on embodiment 2, a drive shaft 9a is included, which is mounted between the even-numbered layer rollers 22a and the even-numbered layer gear shaft 1a. A drive gear 91a is sleeved on the drive shaft 9a, and the drive gear 91a meshes with the even-numbered layer gear A11a. When the even-numbered layer rollers 22a are compressed, the elastic structure contracts and enables the even-numbered layer roller gear 21a to mesh with the drive gear 91a.

[0079] In this embodiment, a transmission gear 91a is added between the even-numbered layer gear A11a and the roller gear 21a, which can change the direction of rotation of the roller gear 21a, thereby making the roller conveyor transport directions of the even-numbered layer and the odd-numbered layer consistent.

[0080] Example 4: Addressing the issue that existing battery racks rely heavily on manual stacking due to a lack of transport equipment. If the racks were to use traditional conveyor rollers for movement, batteries located deeper within the rack would be unable to move properly, potentially causing system malfunctions.

[0081] The difference from Embodiment 2 is that: an electromagnetic clutch 15 is provided between the transmission structure A and the gear A11, an even-numbered layer electromagnetic clutch 15a is provided between the even-numbered layer transmission structure A and the even-numbered layer gear A11a, and an object sensor is provided on each layer of the multi-layer frame. Each layer object sensor is electrically connected to the electromagnetic clutch of the corresponding layer. When an object moves to a preset position, the object sensor can send a signal to put the electromagnetic clutch in a non-interlocking state.

[0082] The object sensor can be an infrared transceiver. Besides controlling the electromagnetic clutch's engagement and disengagement states through preset positions, it can also be paired with a controller and the following algorithm to control the electromagnetic clutch. The object sensor is connected to the controller, and the controller is connected to the electromagnetic clutch. The algorithm is as follows:

[0083] Step 1: The object sensor detects whether there is an object on the corresponding roller. If there is, proceed to Step 2; otherwise, continue the detection.

[0084] Step 2: The object sensor transmits a signal to the controller. The controller calculates the time the object stays. If the time the object stays is greater than the object length divided by the linear speed of the roller's outer diameter, proceed to Step 3; otherwise, return to Step 1.

[0085] Step 3: After a certain delay or without delay, the controller controls the corresponding electromagnetic clutch to put it into a non-interlocked state.

[0086] Because the electromagnetic clutch is located between the pulley and the gear shaft, the rotation of other gear shafts will not be affected when one electromagnetic clutch is in a non-interlocking state.

[0087] This example can use an electromagnetic clutch to control the transport of different layers. When the electromagnetic clutch of the gear shaft 1 or the even-numbered layer gear shaft 1a directly connected to the drive shaft A3 is in a non-interlocking state, the transmission to other gear shafts 1 or even-numbered layer gear shafts 1a in this layer will also stop.

[0088] Example 5: A warehouse containing the battery rack of the present invention

[0089] A battery storage warehouse is provided, in which a battery rack is placed. The battery racks are placed side by side with their openings facing the same direction. A guide rail is provided in front of the battery racks, and a battery handling robot is mounted on the guide rail. The battery handling robot includes a lifting rod, and a robotic arm is connected to the lifting rod.

[0090] This embodiment is one application scenario of the battery rack. Other similar application scenarios using the battery rack of this invention should also be within the protection scope of this invention.

[0091] It should be noted that in the description of the invention, the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the description of the structure of the invention shown in the accompanying drawings. They are only for the convenience of describing the invention 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. Therefore, they should not be construed as limitations on the invention.

[0092] The terms "first" and "second" in this technical solution are merely designations for corresponding structures that are identical or similar, or that perform similar functions. They do not represent an arrangement of the importance of these structures, nor do they imply any ranking, comparison of size, or other meaning.

[0093] Furthermore, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two structures. Those skilled in the art can understand the specific meaning of the above terms in this invention by considering the overall concept of the invention and the specific context of the solution.

Claims

1. A control method for a pressure-engaged conveyor roller conveyor for transporting objects, comprising a roller structure and a power mechanism, characterized in that: The roller structure includes a roller (22), a gear shaft (1), a roller gear (21), and an elastic structure; The roller (22) is mounted above the gear shaft (1), and the roller (22) is connected to the roller gear (21); Gear A (11) is fitted on the gear shaft (1). The power mechanism is used to provide power to the gear shaft (1); The roller (22) is mounted on an elastic structure. When the roller (22) is compressed, the elastic structure contracts and enables the roller gear (21) to mesh with gear A (11). An electromagnetic clutch (15) is provided on the gear shaft (1). The electromagnetic clutch (15) is used to control the separation and connection of the gear shaft (1) and the power mechanism; Including the controller; An object sensor (10) is provided above the roller (22). The object sensor (10) is electrically connected to the controller, and the controller is electrically connected to the electromagnetic clutch (15). The control method includes the following steps: Step 1: The object sensor (10) detects whether there is an object on the roller (22). If there is, proceed to step 2; otherwise, continue the detection. Step 2: The object sensor (10) transmits the signal to the controller. The controller calculates the time the object stays. If the time the object stays is greater than the object length divided by the outer diameter linear velocity of the roller (22), then proceed to step 3; otherwise, return to step 1. Step 3: After a certain delay or without delay, the controller controls the corresponding electromagnetic clutch (15) to put it in a non-interlocked state.

2. The control method for a pressure-engaged conveyor roller according to claim 1, characterized in that: The roller structure comprises multiple rollers, which are connected side-by-side via a transmission structure A.

3. The control method for a pressure-engaged conveyor roller conveyor according to claim 1, characterized in that: The elastic structure includes a spring (23), the upper end of which is connected to the roller (2) and the lower end of which is connected to the limiting block (24).

4. A battery rack, comprising a multi-layer rack, the multi-layer rack including a middle plate (6) and a right side plate (7), the middle plate (6) being disposed to the left of the right side plate (7), the multi-layer rack including an odd-numbered rack and an even-numbered rack, characterized in that: The odd-numbered shelf includes a control method for a pressure-engaged conveyor roller as described in claim 3, wherein the roller shaft (2) is mounted between the middle plate (6) and the right side plate (7), the gear shaft (1) is mounted between the middle plate (6) and the right side plate (7), and the middle plate (6) and the right side plate (7) are provided with sliding holes (61) for the roller shaft (2) to move relative to the gear shaft (1).

5. A battery rack according to claim 4, characterized in that: The even-numbered layer frame includes an even-numbered layer roller structure, which includes an even-numbered layer roller (22a), an even-numbered layer gear shaft (1a), an even-numbered layer roller gear (21a), and an elastic structure. The even-numbered layer roller (22a) is mounted above the even-numbered layer gear shaft (1a), and the even-numbered layer roller (22a) is connected to the even-numbered layer roller gear (21a). An even-numbered layer gear A (11a) is sleeved on the even-numbered layer gear shaft (1a). The even-numbered rollers (22a) are mounted on an elastic structure. When the even-numbered rollers (22a) are compressed, the elastic structure contracts and enables the even-numbered gear A (11a) to drive the even-numbered roller gear (21a) to rotate. It includes an even-numbered layer of roller shafts (2a), wherein the even-numbered layer of rollers (22a) are sleeved on the even-numbered layer of roller shafts (2a) and are rotatable relative to the even-numbered layer of roller shafts (2a); The even-numbered roller structure consists of multiple layers, which are connected side by side through an even-numbered layer transmission structure A. The even-numbered layer roller shafts (2a) and even-numbered layer gear shafts (1a) are both mounted between the middle plate (6) and the right side plate (7); The middle plate (6) and the right side plate (7) are provided with even-numbered sliding holes (61a) for even-numbered layer roller shafts (2a) to move relative to even-numbered layer gear shafts (1a). The even-numbered gear shaft (1a) is connected to the gear shaft (1) via a transmission structure B.

6. A battery rack according to claim 5, characterized in that: The transmission structure B includes a bevel gear A (12) and an even-numbered layer bevel gear A (12a). The bevel gear A (12) and the even-numbered layer bevel gear A (12a) are respectively sleeved on the left end of the gear shaft (1) and the even-numbered layer gear shaft (1a). A transmission shaft A (3) is provided between the bevel gear A (12) and the even-numbered layer bevel gear A (12a). The upper and lower ends of the transmission shaft A (3) are respectively connected to bevel gear C (32) and bevel gear B (31). The bevel gear C (32) and bevel gear B (31) mesh with the even-numbered layer bevel gear A (12a) and bevel gear A (12).

7. A battery rack according to claim 6, characterized in that: It includes a drive shaft (9a), which is mounted between an even-numbered layer roller (22a) and an even-numbered layer gear shaft (1a). A drive gear (91a) is sleeved on the drive shaft (9a), and the drive gear (91a) meshes with the even-numbered layer gear A (11a). When the even-numbered layer roller (22a) is compressed, the elastic structure contracts and enables the even-numbered layer roller gear (21a) to mesh with the drive gear (91a).

8. A battery rack according to claim 7, characterized in that: The transmission structure A includes pulley A (13) and pulley B (14). The pulley A (13) and pulley B (14) are mounted on the gear shaft (1). The four adjacent roller structures are roller A, roller B, roller C and roller D. The roller B and roller C are driven by pulley A (13) and belt. The roller B and roller A, as well as the roller C and roller D, are driven by pulley B (14) and belt.

9. A battery rack according to claim 7, characterized in that: The electromagnetic clutch (15) is disposed between the transmission structure A and the gear A (11), and an even-numbered layer electromagnetic clutch (15a) is disposed between the even-numbered layer transmission structure A and the even-numbered layer gear A (11a).

10. A storage warehouse for batteries, characterized in that: The warehouse contains a battery rack as described in any one of claims 4 to 9. The battery racks are placed side by side with their openings facing the same direction. A guide rail is provided in front of the battery racks, and a battery handling robot is mounted on the guide rail. The battery handling robot includes a lifting rod, and a robotic arm is connected to the lifting rod.

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