Steering machine, steering unit and photovoltaic cell screen separation system

Abstract

The application provides a steering machine, a steering unit and a photovoltaic cell screen printing system, belongs to the field of photovoltaic cell production equipment, and can improve the horizontal transmission stability of the steering machine. The steering machine comprises a main conveying mechanism, a horizontal conveying mechanism and a rack. The horizontal conveying mechanism comprises a horizontal output shaft extending in a horizontal conveying direction, a horizontal transmission shaft extending in a main conveying direction and a horizontal conveying member; the horizontal conveying direction is perpendicular to the main conveying direction, and the horizontal output shaft is engaged with the horizontal transmission shaft; the horizontal transmission shaft is in transmission connection with the horizontal conveying member, so that the horizontal conveying member outputs horizontal conveying direction movement. The main conveying mechanism comprises a main conveying member and a main transmission member in transmission connection with the main conveying member, so that the main conveying member outputs main conveying direction movement. The rack comprises a main mounting rack provided with the main transmission member, a horizontal mounting rack provided with the horizontal output shaft and a lifting structure between the two; the lifting structure enables the horizontal conveying member to have a state lower than the main conveying member and a state higher than the main conveying member.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell production equipment, and more specifically, to a steering mechanism, a steering unit, and a photovoltaic cell wire mesh sorting system. Background Technology

[0002] The existing screen sorting machines for photovoltaic cells such as heterojunction cells are relatively long, and usually require a 90° turning transition machine to achieve a U-shaped layout of the machine, so that the printing section and the subsequent sorting section are arranged in two parallel rows.

[0003] Current steering systems typically have the output shaft and drive shaft of the lateral transmission mechanism vertically aligned, and then connected by a figure-eight belt. During operation, the belt exhibits elasticity slack, frequently causing it to slip off the pulley during movement. This results in a loss of motor drive force, leading to incomplete lateral transmission of the solar cells, ultimately causing cell blockage, fragmentation, and scratches on the silicon wafers. Summary of the Invention

[0004] The purpose of this application is to provide a steering gear, steering unit, and photovoltaic cell wire mesh sorting system that can effectively improve the stability of the lateral transmission of the steering gear.

[0005] The embodiments of this application are implemented as follows:

[0006] In a first aspect, embodiments of this application provide a steering gear, including: a main conveying mechanism, a lateral conveying mechanism, and a frame.

[0007] The transverse conveying mechanism includes a transverse output shaft, a transverse drive shaft, and a transverse conveying component; the transverse output shaft extends along the transverse conveying direction, the transverse drive shaft extends along the main conveying direction, the transverse conveying direction is perpendicular to the main conveying direction, and the transverse output shaft meshes with the transverse drive shaft; the receiving surface of the transverse conveying component is located at the top of the transverse conveying mechanism; the transverse drive shaft is connected to the transverse conveying component, and the receiving surface of the transverse conveying component can output movement in the transverse conveying direction.

[0008] The transverse conveying mechanism includes a main drive component and a main conveying component; the receiving surface of the main conveying component is located at the top of the main conveying mechanism; the main drive component is connected to the main conveying component in a driving connection, enabling the receiving surface of the main conveying component to output movement in the main conveying direction.

[0009] The frame includes a main mounting frame, a transverse mounting frame, and a lifting structure. The main transmission component is mounted on the main mounting frame, the transverse output shaft is mounted on the transverse mounting frame, and the lifting structure is located between the main mounting frame and the transverse mounting frame, such that the receiving surface of the transverse transmission component has a first state that is lower than the receiving surface of the main transmission component and a second state that is higher than the receiving surface of the main transmission component.

[0010] In the above technical solution, the lateral output shaft and the lateral transmission shaft are rigidly contacted by meshing, which makes the transmission between the two more stable and thus effectively improves the stability of the lateral transmission of the steering gear.

[0011] In some alternative implementations, the lateral output shaft and the lateral drive shaft are engaged by a turbine drive structure.

[0012] In the above technical solution, a turbine transmission structure is used for meshing, which is simple in structure and easy to set up; at the same time, it has a high transmission ratio and load-bearing capacity, making the transmission between the transverse output shaft and the transverse transmission shaft smoother.

[0013] In some alternative implementations, a turbine is provided on the transverse output shaft and a worm is provided on the transverse drive shaft, with the turbine meshing with the worm.

[0014] In the above technical solution, the transverse drive shaft can provide a larger installation area, making the worm gear installation more convenient; at the same time, it helps to reduce the axial extension length of the transverse drive shaft, thereby effectively saving space.

[0015] In some alternative implementations, the turbine drive structure is made of carbon structural steel or low-alloy high-strength structural steel.

[0016] In the above technical solution, the turbine transmission structure has good strength, toughness and corrosion resistance, which is conducive to better maintaining the transmission stability between the transverse output shaft and the transverse transmission shaft.

[0017] In some alternative implementations, a first bevel gear is provided on the transverse output shaft, and a second bevel gear is provided between the transverse drive shafts, with the first and second bevel gears meshing.

[0018] In the above technical solution, bevel gears are used for meshing, which has a simple and compact structure and is easy to set up; at the same time, it has high transmission efficiency and stable transmission ratio, making the transmission between the transverse output shaft and the transverse transmission shaft more efficient and reliable.

[0019] In some alternative implementations, there is a meshing clearance between the transverse output shaft and the transverse drive shaft, and the meshing clearance is <1mm.

[0020] In the above technical solution, there is a suitable meshing clearance between the transverse output shaft and the transverse transmission shaft to ensure that the transverse output shaft and the transverse transmission shaft can rotate smoothly during transmission; at the same time, the meshing parts between the transverse output shaft and the transverse transmission shaft can make full contact, so as to have good stability during transmission.

[0021] In some alternative implementations, the lateral output shaft is located on the side of the lateral drive shaft near the bottom of the frame.

[0022] In the above technical solution, the transverse output shaft is closer to the bottom of the frame than the transverse transmission shaft, so that the transverse output motor connected to the transverse output shaft is close to the bottom of the frame, which facilitates fixing the transverse output motor, lowers the center of gravity, and helps improve the overall stability of the equipment.

[0023] In some alternative implementations, both the main conveyor and the lateral conveyor are belts.

[0024] In the above technical solutions, belt conveyor is simple in structure, easy to set up, and provides stable transmission.

[0025] Secondly, embodiments of this application provide a steering unit, including: a first steering gear and a lateral transmission device as provided in the first aspect embodiment, and a second steering gear as provided in the first aspect embodiment.

[0026] The lateral transmission device is located on the output side of the lateral transmission component of the first steering gear and is capable of outputting movement in the lateral transmission direction.

[0027] The input side of the lateral transmission component of the second steering gear corresponds to the output side of the lateral transmission device.

[0028] In the above technical solution, the steering gear used has good stability in lateral transmission, which helps to improve the problem of incomplete lateral transmission.

[0029] Thirdly, embodiments of this application provide a photovoltaic cell screen sorting system, including: a turning unit, a printing unit, and a sorting unit as provided in the third aspect embodiments.

[0030] The printing unit is located on the input side of the main conveyor of the first steering gear, and multiple working devices in the printing unit are arranged side by side along the main conveying direction.

[0031] The sorting unit is located on the output side of the main transmission component of the first steering gear, and multiple working devices in the sorting unit are arranged side by side in the main transmission direction.

[0032] In the above technical solution, the steering unit used for lateral transmission transition can effectively improve the problem of incomplete lateral transmission, thereby effectively improving the phenomena of cell blockage, fragmentation, and silicon wafer scratches in the U-shaped photovoltaic cell wire mesh sorting system. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the steering gear provided in Embodiment 1 of this application;

[0035] Figure 2 This is a partial structural diagram of section II in Embodiment 1 of this application;

[0036] Figure 3 This is a schematic diagram of the steering unit provided in Embodiment 2 of this application;

[0037] Figure 4 This is a schematic diagram of the structure of the photovoltaic cell wire mesh sorting system provided in Embodiment 3 of this application.

[0038] Icons: 100-Steering mechanism; 110-Transverse conveyor mechanism; 111-Transverse output shaft; 112-Transverse drive shaft; 113-Transverse conveyor component; 120-Main conveyor mechanism; 121-Main drive component; 122-Main conveyor component; 130-Frame; 131-Main mounting frame; 132-Transverse mounting frame; 133-Lifting structure; 1000-Steering unit; 200-Transverse conveyor device; 10000-Photovoltaic cell screen sorting system; 2000-Printing unit; 210 0 - Feeding machine; 2200 - First printing machine; 2300 - First drying oven; 2400 - Second printing machine; 2500 - Second drying oven; 2600 - Third printing machine; 2700 - Third drying oven; 2800 - Fourth printing machine; 3000 - Sorting unit; 3100 - Curing oven; 3200 - Test feeding machine; 3300 - Front and back inspection machine; 3400 - Test machine; 3500 - Sorting machine; a - Main conveying direction; b - Lateral conveying direction. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of this application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, terms such as "vertical" and "parallel" do not imply that the parts must be absolutely perpendicular or parallel, but rather that they can be slightly tilted.

[0044] In addition, the terms “first,” “second,” “third,” “fourth,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0045] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] The inventors discovered that when using a figure-eight belt for transmission, the same abnormality would still occur after testing even if the elastic belt material was changed; and that the same abnormality would recur after a week of testing by adding a belt pretensioning mechanism.

[0047] Example 1

[0048] Please see Figures 1-2 This embodiment provides a steering gear 100, including a main transmission mechanism 120, a lateral transmission mechanism 110, and a frame 130.

[0049] The transverse conveying mechanism 110 includes a transverse output shaft 111, a transverse drive shaft 112, and a transverse conveying element 113. The transverse output shaft 111 is used for drive connection with the transverse output motor, and the transverse output shaft 111 is drive connection with the transverse drive shaft 112 so that the transverse output shaft 111 can transmit the power output by the transverse output motor to the transverse drive shaft 112.

[0050] To save installation space for the transverse conveying mechanism 110, the transverse output shaft 111 extends along the transverse conveying direction b, and the transverse transmission shaft 112 extends along the main conveying direction a. To achieve stable transmission between the transverse output shaft 111 and the transverse transmission shaft 112, a meshing transmission connection is adopted between the transverse output shaft 111 and the transverse transmission shaft 112.

[0051] The receiving surface of the transverse conveyor 113 is located at the top of the transverse conveying mechanism 110 and is used to receive and convey materials. The transverse drive shaft 112 is connected to the transverse conveyor 113, and enables the receiving surface of the transverse conveyor 113 to output movement in the transverse conveying direction b, so that the receiving surface of the transverse conveyor 113 can convey the material to be conveyed in the transverse conveying direction b.

[0052] The main transmission mechanism 120 includes a main drive component 121 and a main transmission component 122. The main transmission mechanism 120 is used for transmission connection with the main output power mechanism.

[0053] The receiving surface of the main conveyor 122 is located on top of the main conveying mechanism 120 and is used to receive and convey materials. The main drive component 121 is connected to the main conveyor 122 in a driving connection, so that the receiving surface of the main conveyor 122 can output movement in the main conveying direction a, so that the receiving surface of the main conveyor 122 can convey the material to be conveyed in the main conveying direction a.

[0054] The frame 130 includes a main mounting frame 131, a transverse mounting frame 132, and a lifting structure 133. The main mounting frame 131 mounts a main conveyor mechanism 120, which is mounted on the main mounting frame 131 via a main drive member 121. The transverse mounting frame 132 mounts a transverse conveyor mechanism 110, which is mounted on the transverse mounting frame 132 via a transverse output shaft 111. The lifting structure 133 is positioned between the main mounting frame 131 and the transverse mounting frame 132, such that the receiving surface of the transverse conveyor 113 has a first state lower than the receiving surface of the main conveyor 122 and a second state higher than the receiving surface of the main conveyor 122.

[0055] The working principle of the steering gear 100 provided in this application is as follows:

[0056] When conveying materials in the main conveying direction a via the main conveying mechanism 120, the lifting structure 133 is controlled to position the receiving surface of the transverse conveyor 113 in a first state, allowing materials to be received and conveyed via the receiving surface of the main conveyor 122. When conveying materials in the transverse conveying direction b via the transverse conveying mechanism 110, the lifting structure 133 is controlled to position the receiving surface of the transverse conveyor 113 in a second state, allowing materials to be received and conveyed via the receiving surface of the transverse conveyor 113.

[0057] The steering gear 100 provided in this application has a rigid contact between the lateral output shaft 111 and the lateral transmission shaft 112 through meshing, which makes the transmission between the two have good stability, thereby effectively improving the stability of the lateral transmission of the steering gear 100.

[0058] Considering that the lateral output motor of the lateral conveying mechanism 110 is connected to the lateral output shaft 111, in some optional embodiments, to facilitate the fixing of the lateral output motor, the lateral output shaft 111 is located on the side of the lateral transmission shaft 112 near the bottom of the frame 130. This arrangement also lowers the center of gravity, which helps improve the overall stability of the equipment.

[0059] Considering that the meshing between the transverse output shaft 111 and the transverse transmission shaft 112 is a hard contact, in order to ensure that the transverse output shaft 111 and the transverse transmission shaft 112 can rotate smoothly during transmission, there needs to be a certain gap between the transverse output shaft 111 and the transverse transmission shaft 112; and in order to ensure that the transverse output shaft 111 and the transverse transmission shaft 112 can transmit power stably during transmission, the meshing parts between the transverse output shaft 111 and the transverse transmission shaft 112 need to be in full contact.

[0060] Based on the above considerations, in some optional embodiments, there is a meshing clearance between the transverse output shaft 111 and the transverse transmission shaft 112, and the meshing clearance is <1mm, for example, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, or 0.9mm. In this configuration, the transverse output shaft 111 and the transverse transmission shaft 112 have a suitable meshing clearance, ensuring smooth rotation of both during transmission, while also allowing sufficient contact between the meshing parts of the transverse output shaft 111 and the transverse transmission shaft 112.

[0061] It is understood that in this application, the meshing method between the transverse output shaft 111 and the transverse transmission shaft 112 is not limited, as long as power transmission in the vertical direction can be achieved.

[0062] As a first example, the lateral output shaft 111 and the lateral drive shaft 112 are engaged via a worm gear transmission structure. The worm's axis of rotation is perpendicular to the worm wheel's axis of rotation; and from the top to the bottom of the steering gear 100, the worm's axis of rotation projects onto the worm wheel. Using a worm gear transmission structure for engagement simplifies the structure and makes installation convenient; it also provides a high transmission ratio and load-bearing capacity, resulting in smoother transmission between the lateral output shaft 111 and the lateral drive shaft 112.

[0063] Furthermore, considering that the transverse drive shaft 112 can provide a large installation area, a worm gear is provided on the transverse drive shaft 112, making the installation of the worm gear more convenient. A turbine is provided on the transverse output shaft 111, which helps to reduce the axial extension length of the transverse drive shaft 112, thereby effectively saving space.

[0064] It should be noted that in other embodiments of this application, the worm gear may be mounted on the transverse output shaft 111 and the turbine may be mounted on the transverse transmission shaft 112.

[0065] Considering that the meshing between the transverse output shaft 111 and the transverse drive shaft 112 is a hard contact, in some optional embodiments, the turbine drive structure is made of carbon structural steel or low-alloy high-strength structural steel. Turbine drive structures made of these materials have good strength, toughness, and corrosion resistance, which helps to better maintain the stability of the transmission between the transverse output shaft 111 and the transverse drive shaft 112.

[0066] For example, the turbine drive structure is model Q235 / Q275 or Q345 / Q375.

[0067] As a second example, a first bevel gear is provided on the transverse output shaft 111, and a second bevel gear is provided between the transverse transmission shafts 112, with the first and second bevel gears meshing. Using bevel gears for meshing results in a simple, compact structure that is easy to install; simultaneously, it offers high transmission efficiency and a stable transmission ratio, making the transmission between the transverse output shaft 111 and the transverse transmission shaft 112 more efficient and reliable.

[0068] It is understood that, in this application, except for the meshing method between the transverse output shaft 111 and the transverse transmission shaft 112, the structures of the transverse transmission mechanism 110 and the frame 130 can be configured in a manner conventional in the art.

[0069] To stably achieve the lifting and lowering of the horizontal mounting bracket 132, as an example, the lifting structure 133 is configured as a cylinder.

[0070] To facilitate the setup of the main output power mechanism and the power output of the main transmission component 121, as an example, the main transmission component 121 is a main transmission shaft extending along the lateral transmission direction b. Both the lateral transmission component 113 and the main transmission component 122 adopt shaft transmission, which simplifies the overall transmission structure of the steering gear 100 and ensures stable transmission.

[0071] When both the transverse conveyor 113 and the main conveyor 122 employ shaft drives, in some optional embodiments, both the main conveyor 122 and the transverse conveyor 113 are belts. Belt conveying is simple in structure, easy to set up, and provides stable transmission.

[0072] It should be noted that in other embodiments of this application, the main transmission member 122 and the transverse transmission member 113 may also be configured with the corresponding transmission members in the form of sprocket chain drive and gear rack drive, etc.

[0073] Example 2

[0074] Please see Figure 3 This embodiment provides a steering unit 1000, including a transverse transmission device 200 and steering gears 100 located at both ends of the transverse transmission device 200 in the transmission direction, referred to as the first steering gear 100 and the second steering gear 100, respectively.

[0075] The first steering gear 100, the lateral transmission device 200, and the second steering gear 100 are arranged side by side along the lateral transmission direction b. The lateral transmission device 200 is located on the output side of the lateral transmission member 113 of the first steering gear 100 and is capable of outputting movement in the lateral transmission direction b. The input side of the lateral transmission member 113 of the second steering gear 100 corresponds to the output side of the lateral transmission device 200.

[0076] It is understood that the configuration of the transverse transmission device 200 is not limited in this application, such as a rotational transmission method or a sliding transmission method.

[0077] As an example, the transverse transmission device 200 is configured as a belt conveyor.

[0078] The working principle of the steering unit 1000 provided in this application is as follows:

[0079] When the U-shaped workpiece reaches the first steering mechanism 100, firstly, the receiving surface of the transverse conveyor 113 is controlled to be in a first state, and the material is conveyed to its position in the main conveying direction a via the main conveyor. Then, the receiving surface of the transverse conveyor 113 is controlled to be in a second state, and the material is conveyed to the inlet / outlet side of the transverse conveyor 200 in the transverse conveying direction b via the transverse conveyor 200. Subsequently, the material is conveyed in the transverse conveying direction b via the transverse conveyor 200 to the input end of the transverse conveyor 113 of the second steering mechanism 100. At this time, the receiving surface of the transverse conveyor 113 is controlled to be in the second state, and the material is conveyed to its position in the transverse conveying direction b via the transverse conveyor. Finally, the receiving surface of the transverse conveyor 113 is controlled to be in a first state, and the material is conveyed in the main conveying direction a via the main conveyor to the output side of the main conveyor.

[0080] The steering unit 1000 provided in this application uses a steering gear 100 with good lateral transmission stability, which helps to improve the problem of incomplete lateral transmission.

[0081] Example 3

[0082] Please see Figure 4 This embodiment provides a photovoltaic cell screen sorting system 10000, including a turning unit 1000, a printing unit 2000 and a sorting unit 3000.

[0083] The printing unit 2000 is located on the input side of the main conveyor 122 of the first steering mechanism 100, and multiple working devices in the printing unit 2000 are arranged side by side along the main conveying direction a.

[0084] As an example, in the vector direction from away from the first steering machine 100 to near the first steering machine 100, the multiple working devices in the printing unit 2000 include a feeder 2100, a first printing press 2200, a first drying oven 2300, a second printing press 2400, a second drying oven 2500, a third printing press 2600, a third drying oven 2700, and a fourth printing press 2800 arranged sequentially.

[0085] The sorting unit 3000 is located on the output side of the main conveyor 122 of the first steering gear 100, and the multiple working devices in the sorting unit 3000 are arranged side by side in the main conveying direction a.

[0086] As an example, in the vector direction from near the second steering gear 100 to away from the second steering gear 100, the multiple working devices in the sorting unit 3000 include a curing oven 3100, a test feeder 3200, a front and back inspection machine 3300, a tester 3400, and a sorting machine 3500 arranged in sequence.

[0087] The working principle of the photovoltaic cell wire mesh sorting system 10000 provided in this application is as follows:

[0088] The materials to be screen printed and sorted first pass through the feeding machine 2100, the first printing machine 2200, the first drying oven 2300, the second printing machine 2400, the second drying oven 2500, the third printing machine 2600, the third drying oven 2700, and the fourth printing machine 2800 in sequence. Then, they are conveyed and turned by the turning unit 1000, and then pass through the curing oven 3100, the testing feeding machine 3200, the front and back inspection machine 3300, the testing machine 3400, and the sorting machine 3500 in sequence.

[0089] The photovoltaic cell screen sorting system 10000 provided in this application achieves a U-shaped distribution of the printing unit 2000, the steering unit 1000, and the sorting unit 3000 through the steering unit 1000, which can reduce the length requirements of the workshop when installing the photovoltaic cell screen sorting system 10000. The steering unit 1000 used for lateral transmission, through the improvement of the steering mechanism 100 in this application, can effectively improve the problem of incomplete lateral transmission, thereby effectively improving the phenomena of wafer blockage, fragmentation, and silicon wafer scratches in the photovoltaic cell screen sorting system 10000.

[0090] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steering gear, characterized in that, include: A transverse conveying mechanism includes a transverse output shaft, a transverse drive shaft, and a transverse conveying component. The transverse output shaft extends along the transverse conveying direction, and the transverse drive shaft extends along the main conveying direction, which is perpendicular to the main conveying direction. The transverse output shaft meshes with the transverse drive shaft. There is a meshing gap between the transverse output shaft and the transverse drive shaft, and the meshing gap is <1mm. The receiving surface of the transverse conveying component is located at the top of the transverse conveying mechanism. The transverse drive shaft is drivenly connected to the transverse conveying component, enabling the receiving surface of the transverse conveying component to output movement in the transverse conveying direction. The main conveying mechanism includes a main drive component and a main conveying component; the receiving surface of the main conveying component is located at the top of the main conveying mechanism. The main drive component is connected to the main transmission component, and the receiving surface of the main transmission component can output the movement in the main transmission direction. as well as The frame includes a main mounting frame, a transverse mounting frame, and a lifting structure. The main transmission component is disposed on the main mounting frame, the transverse output shaft is disposed on the transverse mounting frame, and the lifting structure is disposed between the main mounting frame and the transverse mounting frame, such that the receiving surface of the transverse transmission component has a first state lower than the receiving surface of the main transmission component and a second state higher than the receiving surface of the main transmission component; the transverse output shaft is located on the side of the transverse transmission shaft near the bottom of the frame.

2. The steering gear according to claim 1, characterized in that, The lateral output shaft and the lateral transmission shaft are engaged by a turbine transmission structure.

3. The steering gear according to claim 2, characterized in that, A turbine is provided on the transverse output shaft, and a worm is provided on the transverse transmission shaft. The turbine meshes with the worm.

4. The steering gear according to claim 2, characterized in that, The turbine drive structure is made of carbon structural steel or low-alloy high-strength structural steel.

5. The steering gear according to claim 1, characterized in that, A first bevel gear is provided on the transverse output shaft, and a second bevel gear is provided between the transverse transmission shafts, wherein the first bevel gear and the second bevel gear mesh.

6. The steering gear according to claim 1, characterized in that, Both the main conveyor and the transverse conveyor are belts.

7. A steering unit, characterized in that, include: The first steering gear as described in any one of claims 1 to 6; The lateral transmission device, located on the output side of the lateral transmission member of the first steering gear, is capable of outputting movement in the lateral transmission direction; as well as The second steering gear as described in any one of claims 1 to 6, wherein the input side of the lateral transmission member of the second steering gear corresponds to the output side of the lateral transmission device.

8. A photovoltaic cell wire mesh sorting system, characterized in that, include: The steering unit as described in claim 7; A printing unit located on the input side of the main conveyor of the first steering gear, wherein multiple working devices in the printing unit are arranged side by side along the main conveying direction; as well as A sorting unit located on the output side of the main conveyor of the first steering gear, wherein multiple working devices in the sorting unit are arranged side by side in the main conveying direction.

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