A sling device and a loading system

Abstract

The lifting device disclosed by the application is used for realizing automatic clamping of a hoisted piece, and comprises a lifting device connecting frame and a clamping mechanism. The lifting device connecting frame is used for being connected with a hoisting trolley to drive the hoisted piece to be transported by the hoisting trolley. The clamping mechanism is connected with the lifting device connecting frame, and the clamping mechanism is provided with a clamping component used for clamping the hoisted piece. In a first state, the clamping component is connected with the hoisted piece; in a second state, the clamping component is separated from the hoisted piece. The lifting device disclosed by the application can realize automatic clamping and unclamping of the hoisted piece, improve hoisting operation efficiency, and reduce labor operation cost.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, and more specifically, to a lifting device and a loading system. Background Technology

[0002] As the requirements for automation in high-temperature gas-cooled reactors increase, the demands for fuel transportation efficiency also rise. Currently, fuel storage and transfer are mainly done manually, which is inefficient and time-consuming, failing to meet automation requirements.

[0003] Therefore, how to achieve automated loading of fuel to improve transfer efficiency has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a lifting device to realize automatic lifting of fuel and improve transfer efficiency.

[0005] Another object of the present invention is to provide a loading system comprising the above-described lifting device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lifting device for automatically clamping components to be lifted, comprising:

[0008] Spreader connecting frame, used for connecting to the lifting trolley;

[0009] The clamping mechanism is connected to the lifting device connecting frame and is provided with clamping components. In a first state, the clamping components are connected to the part to be lifted, and in a second state, the clamping components are separated from the part to be lifted.

[0010] Optionally, in the above-described lifting device, a rotating mechanism is connected between the lifting device connecting frame and the clamping mechanism, the rotating mechanism comprising:

[0011] The first rotating part is connected to the lifting device connecting frame;

[0012] The second rotating part is connected to the mounting mechanism, and the second rotating part is rotatably connected to the first rotating part;

[0013] The first driving member is connected to the second rotating part in a transmission connection to drive the second rotating part to rotate relative to the first rotating part.

[0014] Optionally, in the above-described lifting device, the clamping mechanism includes:

[0015] The mounting body is connected to the second rotating part;

[0016] The mounting component is disposed on the mounting body. The mounting component is a telescopic pin. In the first state, the telescopic pin extends out of the mounting body and engages with the part to be lifted. In the second state, the telescopic pin retracts into the mounting body and separates from the part to be lifted.

[0017] The second driving component is disposed on the mounting body and is connected to the mounting component in a transmission manner to drive the mounting component to switch between the first state and the second state.

[0018] Optionally, in the above-described lifting device, the clamping components are multiple components symmetrically arranged on the clamping body, and a synchronous transmission assembly for driving each clamping component to extend and retract synchronously is provided between the second driving member and the clamping components.

[0019] Optionally, in the above-described lifting device, the synchronous transmission assembly includes:

[0020] A synchronous transmission gear is connected to the second driving component for transmission.

[0021] The first transmission component meshes with the synchronous transmission gear;

[0022] The second transmission component meshes with the synchronous transmission gear, and the mounting components are symmetrically arranged on the first transmission component and the second transmission component.

[0023] Optionally, in the above-mentioned lifting device, the clamping body is provided with a safety locking member, and both the first transmission member and the second transmission member are provided with safety grooves. In the first state, the safety locking member is embedded in the safety groove to prevent the clamping component from retracting.

[0024] Optionally, in the above-described lifting device, the first transmission component includes a first transmission part and a first mounting part. The first transmission part is provided with a first transmission rack for meshing with the synchronous transmission gear, and the first mounting part is provided with the mounting component. The first transmission part and the first mounting part are connected.

[0025] The second transmission component includes a second transmission part and a second mounting part. The second transmission part is provided with a second transmission rack for meshing with the synchronous transmission gear, and the second mounting part is provided with the mounting component. The second transmission part and the second mounting part are connected.

[0026] Optionally, in the above-described lifting device, the first transmission member and the second transmission member are arranged in a centrally symmetrical manner with respect to the synchronous transmission gear.

[0027] Optionally, in the above-described lifting device, a first guide and a second guide are provided at the end of the mounting body away from the lifting device connecting frame;

[0028] There are multiple first guide members, and each first guide member forms a guide channel for the object to be hoisted to enter. The cross-sectional area of ​​the guide channel near the mounting body is smaller than the cross-sectional area away from the mounting body.

[0029] There are multiple second guide members, each of which is used to fit against the inner wall of the hoisting part of the object to be hoisted and to guide it.

[0030] Optionally, in the above-described lifting device, a sliding support is provided at the end of the mounting body away from the lifting device connecting frame.

[0031] Optionally, in the above-described lifting device, a flexible chain is connected between the clamping body and the second rotating part.

[0032] A loading system includes the aforementioned lifting device.

[0033] The lifting device provided by this invention is used to automatically clamp the workpiece to be lifted. The lifting device includes a lifting device connecting frame and a clamping mechanism. The lifting device connecting frame is used to connect to a lifting trolley so that the lifting trolley can move the workpiece to be lifted. The clamping mechanism is connected to the lifting device connecting frame and is provided with clamping components for clamping the workpiece to be lifted. In a first state, the clamping components are connected to the workpiece to be lifted; in a second state, the clamping components are separated from the workpiece to be lifted.

[0034] During hoisting, the lifting device is brought close to the hoisting position of the component to be hoisted. The clamping mechanism is then positioned in its first state, establishing a clamping connection with the component. At this point, the hoisting trolley can move the component to be hoisted. After moving to the designated location, the clamping mechanism is then positioned in its second state, separating from the component and completing the hoisting and transport operation. The clamping components can be telescopic pins, jaws, or other structures, with corresponding clamping structures, such as lifting lugs or hoisting holes, provided on the component to be hoisted.

[0035] Compared with existing technologies, the lifting device provided by this invention can automatically load and unload the components to be lifted, thereby improving lifting efficiency and reducing labor costs.

[0036] The loading system provided by the present invention includes the above-mentioned lifting device, which can realize the automatic loading of the parts to be lifted, and therefore has the same advantages as described above, which will not be repeated here. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the lifting device disclosed in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the internal structure of the lifting device disclosed in an embodiment of the present invention;

[0040] Figure 3 for Figure 2 A partial structural diagram;

[0041] Figure 4 This is a bottom view of the lifting device disclosed in an embodiment of the present invention.

[0042] Among them, 100 is the lifting device connecting frame;

[0043] 200 is the mounting mechanism, 210 is the mounting body, 211 is the rigid cylinder, 212 is the outer shell, 213 is the first guide, 214 is the sliding support, 215 is the second guide, 220 is the second drive, 230 is the mounting component, 231 is the anti-torsion assembly, 240 is the synchronous transmission assembly, 241 is the first transmission component, 242 is the second transmission component, and 243 is the safety locking component.

[0044] 300 is a rotating mechanism, 310 is a first rotating part, 311 is an internal gear, 312 is a bearing structure, 320 is a second rotating part, 321 is a rotating gear, 330 is a flexible chain, 331 is an eye bolt, 332 is a ring chain, and 333 is a D-ring. Detailed Implementation

[0045] The core of this invention is to disclose a lifting device to achieve automatic lifting of fuel and improve transfer efficiency.

[0046] Another key aspect of this invention is the disclosure of a loading system, which includes the aforementioned lifting device.

[0047] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations represented in the embodiments below are not limited to those necessary for the solution of the invention described in the claims.

[0048] Combination Figure 1The lifting device disclosed in this embodiment of the invention is used to automatically clamp the workpiece to be lifted. The lifting device includes a lifting device connecting frame 100 and a clamping mechanism 200. The lifting device connecting frame 100 is used to connect to a lifting trolley so that the workpiece to be lifted can be transported by the lifting trolley. The clamping mechanism 200 is connected to the lifting device connecting frame 100 and is provided with a clamping component 230 for clamping the workpiece to be lifted. In a first state, the clamping component 230 is connected to the workpiece to be lifted; in a second state, the clamping component 230 is separated from the workpiece to be lifted.

[0049] During hoisting, the lifting device is brought close to the hoisting position of the part to be hoisted, and then the clamping mechanism 200 is controlled to be in the first state to achieve clamping connection with the part to be hoisted. At this time, the hoisting trolley can drive the part to be hoisted for transfer. After moving to the designated position, the clamping mechanism 200 is controlled to be in the second state to achieve separation from the part to be hoisted, thus completing the hoisting and transfer operation.

[0050] Specifically, the mounting component 230 can be a telescopic pin, a claw, or other structure. Correspondingly, there are mounting structures on the part to be lifted for the mounting component 230 to mount, such as lifting lugs or lifting holes.

[0051] Compared with the prior art, the lifting device disclosed in this embodiment of the invention can realize automatic loading and unloading of the parts to be lifted, thereby improving the efficiency of lifting operations and reducing the cost of manual operation.

[0052] Because there may be a positional error between the clamping mechanism 200 and the object to be lifted when the lifting device is close to it, the clamping component 230 and the clamping structure of the object to be lifted cannot be aligned. Therefore, in a specific embodiment of the present invention, a rotating mechanism 300 is connected between the lifting device connecting frame 100 and the clamping mechanism 200. The rotating mechanism 300 can realize the rotation of the relative positions of the lifting device connecting frame 100 and the clamping mechanism 200 so that the clamping component 230 can be aligned with the clamping structure and the clamping connection between the two can be realized.

[0053] Specifically, the rotating mechanism 300 includes a first rotating part 310, a second rotating part 320, and a first driving member. The first rotating part 310 is connected to the lifting device connecting frame 100, and the second rotating part 320 is connected to the clamping mechanism 200, with the second rotating part 320 rotatably connected to the first rotating part 310. The first driving member is drively connected to the second rotating part 320 to drive the second rotating part 320 to rotate relative to the first rotating part 310, thereby allowing the clamping mechanism 200 to rotate relative to the lifting device connecting frame 100 and aligning the clamping component 230 with the clamping structure of the part to be lifted.

[0054] The first rotating part 310 includes an internal gear 311 and a first mounting member. The internal gear 311 is connected to the first mounting member, and the lifting device connecting frame 100 is connected to the first mounting member. The second rotating part 320 includes a rotating gear 321 (ordinary gear) for meshing with the internal gear 311 and a second mounting member. The rotating gear 321 is connected to the second mounting member (engaged). Figure 3 (The rotating gear 321 is eccentrically arranged relative to the second mounting component), and the mounting mechanism 200 is connected to the second mounting component.

[0055] like Figure 3 As shown, a bearing structure 312 for reducing friction is provided between the second mounting member and the first mounting member at the portion where the second mounting member is embedded.

[0056] The first driving component is a drive motor. After the part to be hoisted is locked in place, to prevent the first rotating part 310 and the second rotating part 320 from rotating relative to each other during the transfer process, the first driving component can be self-locking. The angle of mutual rotation between the first rotating part 310 and the second rotating part 320 can be set according to actual needs, for example, ±10°.

[0057] In a specific embodiment of the present invention, the clamping mechanism 200 includes a clamping body 210, a clamping component 230, and a second driving component 220. The clamping body 210 is connected to the second rotating part 320. The clamping component 230 is disposed on the clamping body 210 and is a telescopic pin. In a first state, the telescopic pin extends out of the clamping body 210 and engages with the component to be lifted. In a second state, the telescopic pin retracts into the clamping body 210 and separates from the component to be lifted, thus preventing collisions or snagging with other equipment during shutdown.

[0058] The second driving component 220 is disposed on the mounting body 210 and is connected to the mounting component 230 in a transmission manner to drive the mounting component 230 to switch between the first state and the second state.

[0059] Combination Figure 2 A rigid cylinder 211 is bolted to one end of the mounting body 210 near the lifting device connecting frame 100. The rigid cylinder 211 is coaxially arranged with the second rotating part 320, and the second driving member 220 is installed inside the rigid cylinder 211. The second driving member 220 can be a drive motor. Furthermore, structural holes for weight reduction can be formed on the rigid cylinder 211.

[0060] The aforementioned clamping component 230 can also be replaced with a gripper for clamping the part to be lifted, or a pallet with a slot for supporting the part to be lifted, as long as it can clamp the part to be lifted. The clamping component 230 can slide telescopically within the side hole of the clamping body 210.

[0061] like Figure 4 As shown, multiple telescopic pins are symmetrically arranged on the mounting body 210, and a synchronous transmission assembly 240 is provided between the second driving member 220 and the mounting component 230 to drive the synchronous extension and retraction of each mounting component 230, so as to realize the synchronous switching of the telescopic pins between the first state and the second state.

[0062] The synchronous transmission assembly 240 includes a synchronous transmission gear, a first transmission member 241, and a second transmission member 242. The synchronous transmission gear is connected to the second driving member 220 and is driven to rotate by the second driving member 220. Mounting components 230 are symmetrically arranged on the first transmission member 241 and the second transmission member 242, and both the first transmission member 241 and the second transmission member 242 mesh with the synchronous transmission gear to achieve telescopic drive of each mounting component 230.

[0063] like Figure 4 As shown, the first transmission component 241 is a sliding linkage structure, and includes a first transmission part and a first mounting part. The first transmission part is provided with a first transmission rack for meshing with a synchronous transmission gear, and the first mounting part is fixedly connected to a mounting component 230. The first transmission part and the first mounting part are fixedly connected.

[0064] The first mounting part can be arranged perpendicular to the extension direction of the first transmission part, and two telescopic pins can be symmetrically arranged on the first mounting part. Furthermore, in order to guide the transmission of the first transmission member 241, a first slide rail is provided on the mounting body 210. The first slide rail extends along the moving direction of the first transmission part and slides in cooperation with the first transmission part.

[0065] The second transmission member 242 can be configured as a sliding linkage structure identical to that of the first transmission member 241. Specifically, the second transmission member 242 includes a second transmission section and a second mounting section. The second transmission section is equipped with a second transmission rack for meshing with a synchronous transmission gear, and the second mounting section is equipped with a mounting component 230. The second transmission section and the second mounting section are connected. The second mounting section is arranged perpendicular to the extension direction of the second transmission section, and two telescopic pins are symmetrically arranged on the second mounting section. A second slide rail is provided on the mounting body 210, extending along the movement direction of the second transmission section and slidingly engaging with it.

[0066] When the second transmission component 242 and the first transmission component 241 have the same structure, they can be arranged in a centrally symmetrical manner relative to the synchronous transmission gear. When mounting the part to be lifted, the synchronous transmission gear rotates, and the first transmission component 241 and the second transmission component 242 respectively drive the telescopic pin to extend axially at both ends and engage with the part to be lifted.

[0067] To prevent the telescopic pin from retracting after the component to be hoisted is clamped, a safety locking element 243 is provided on the clamping body 210, and a safety groove is provided on the synchronous transmission assembly 240. In the first state (the state where the clamping component 230 is clamped to the component to be hoisted), the safety locking element 243 is embedded in the safety groove, preventing the first transmission component 241 and the second transmission component 242 from moving, thereby preventing the synchronous transmission assembly 240 from driving and achieving state locking. Specifically, the safety groove can be simultaneously provided on the first transmission component 241 and the second transmission component 242, and there are two corresponding safety locking elements 243 to lock the states of the first transmission component 241 and the second transmission component 242 respectively.

[0068] The safety locking element 243 can also be a single unit, as long as it can simultaneously restrict the movement of the first transmission element 241 and the second transmission element 242.

[0069] like Figure 1 As shown, the mounting body 210 is also provided with anti-torsion components 231 to prevent the telescopic pin from rotating. Multiple sets of anti-torsion components 231 correspond one-to-one with the telescopic pin. In a specific embodiment, each set of anti-torsion components 231 includes a fixed shaft and a fixed plate. The fixed shaft consists of two shafts that slide in conjunction with the mounting body 210 and are arranged parallel to the telescopic pin. Both the fixed shaft and the telescopic pin are fixedly connected to the fixed plate, and the mounting end of the telescopic pin is exposed on the fixed plate. As the telescopic pin extends and retracts, the fixed shaft and the fixed plate move synchronously, effectively preventing the telescopic pin of the cylindrical structure from torsion.

[0070] When the telescopic pin is a square shaft, the anti-torsion component 231 mentioned above can also play the role of anti-torsion, and the square hole of the mounting body 210 for sliding of the telescopic pin can also limit the torsion of the telescopic pin.

[0071] To facilitate the alignment and clamping of the clamping mechanism 200 with the component to be lifted, such as Figure 2 As shown, the end of the mounting body 210 away from the lifting device connecting frame 100 is provided with a first guide member 213 and a second guide member 215. There are multiple first guide members 213, each forming a guide channel for the part to be lifted to enter. The cross-sectional area of ​​the guide channel near the mounting body 210 is smaller than the cross-sectional area away from the mounting body 210, so as to conform to the outer wall of the part to be lifted for alignment. When the lifting device approaches the part to be lifted from above, the part enters through the guide channel and gradually approaches the telescopic pin. When there is a positional deviation between the mounting mechanism 200 and the part to be lifted, the first guide member 213 drives the mounting body 210 to rotate or move, gradually correcting the positional deviation. The alignment of the first guide member 213 includes relative rotation and relative movement between 211 and the second rotating part 320.

[0072] In one specific embodiment, the mounting body 210 is a square frame steel structure fabricated after double-layer welding, and the first guide member 213 consists of eight thin-walled structures evenly arranged circumferentially on the mounting body 210. Each first guide member 213 includes a first guide section and a second guide section. The first guide section extends along the extension direction of the mounting body 210 and is connected to the mounting body 210. The second guide section is connected to the first guide section, and the second guide section is inclined in a direction away from each other. The first guide member 213 can assist the lifting device in completing the positioning.

[0073] There are multiple second guide members 215, and each second guide member 215 is used to fit against the inner wall of the part to be lifted. Figure 1 As the lifting device approaches the object to be lifted, the object is first guided by the first guide 213, and then the second guide 215 comes into contact with the inner wall of the lifting part of the object to be lifted, further guiding the object to be lifted.

[0074] like Figure 2 As shown, a sliding support 214 is provided at the end of the mounting body 210 away from the lifting device connecting frame 100. There are four sliding supports 214 symmetrically arranged on the mounting body 210, which facilitates the adjustment of the position of the mounting body 210 relative to the lifting device.

[0075] Combination Figure 2 A floating gap for adjustment is provided between the second mounting part of the second rotating part 320 and the rigid cylinder 211, which allows the clamping mechanism 200 to rotate or move relative to the object to be lifted, thereby adjusting its position.

[0076] like Figure 1 As shown, a flexible chain 330 for flexible connection is connected between the mounting body 210 and the second rotating part 320, and the flexible chain 330 is connected to the second mounting member and the mounting body 210 respectively, thereby facilitating the mounting mechanism 200 to float relative to the second rotating part 320.

[0077] Specifically, the flexible chain 330 includes eye bolts 331, chain links 332, and D-rings 333. The D-rings 333 are connected to the mounting body 210, the eye bolts 331 are connected to the second mounting component, and the chain links 332 are connected between the eye bolts 331 and the D-rings 333. There are four flexible chains 330 symmetrically connected between the mounting body 210 and the second mounting component.

[0078] like Figure 2 As shown, a protective outer shell 212 is provided on the mounting body 210. One end of the outer shell 212 is sleeved on the first rotating part 310, and a floating gap is left between the outer shell 212 and the first rotating part 310. The second end of the outer shell 212 can be welded or bolted to the mounting body 210.

[0079] The aforementioned components to be lifted can be fuel storage containers used in high-temperature gas-cooled reactors, in order to achieve automatic lifting of fuel and improve transfer efficiency.

[0080] The loading system disclosed in this embodiment of the invention includes the above-mentioned lifting device, which can realize the automatic clamping of the parts to be lifted, and therefore also has the above-mentioned advantages, which will not be repeated here.

[0081] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0082] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0083] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A lifting device for automatically clamping components to be lifted, characterized in that, include: A spreader connecting frame (100) is used to connect to a lifting trolley; The clamping mechanism (200) is connected to the lifting device connecting frame (100) and is provided with a clamping component (230). In a first state, the clamping component (230) is connected to the part to be lifted, and in a second state, the clamping component (230) is separated from the part to be lifted. A rotating mechanism (300) is connected between the lifting device connecting frame (100) and the mounting mechanism (200). The rotating mechanism (300) includes a first rotating part (310), a second rotating part (320), and a first driving member. The first rotating part (310) is connected to the lifting device connecting frame (100); the second rotating part (320) is connected to the mounting mechanism (200), and the second rotating part (320) is rotatably connected to the first rotating part (310); the first driving member is drively connected to the second rotating part (320) to drive the second rotating part (320) to rotate relative to the first rotating part (310). The first rotating part (310) includes an internal gear (311) and a first mounting member. The internal gear (311) is connected to the first mounting member, and the lifting device connecting frame (100) is connected to the first mounting member. The second rotating part (320) includes a rotating gear (321) and a second mounting member. The rotating gear (321) meshes with the internal gear (311) and is connected to the second mounting member. The rotating gear (321) is eccentrically arranged relative to the second mounting member, and the clamping mechanism (200) is connected to the second mounting member. The mounting mechanism (200) includes a mounting body (210), and a sliding support (214) is provided at one end of the mounting body (210) away from the lifting device connecting frame (100). The mounting body (210) is provided with a first guide (213) and a second guide (215) at the end away from the lifting device connecting frame (100); there are multiple first guides (213), each first guide (213) forming a guide channel for the part to be lifted to enter, and the cross-sectional area of ​​the guide channel near the mounting body (210) is smaller than the cross-sectional area away from the mounting body (210); there are multiple second guides (215), each second guide (215) is used to fit against the inner wall of the lifting part of the part to be lifted and to guide it; A flexible chain (330) is connected between the second mounting component and the mounting body (210).

2. The lifting device as described in claim 1, characterized in that, The mounting mechanism (200) includes: The mounting body (210) is connected to the second rotating part (320); The mounting component (230) is disposed on the mounting body (210). The mounting component (230) is a telescopic pin. In the first state, the telescopic pin extends out of the mounting body (210) and engages with the part to be hoisted. In the second state, the telescopic pin retracts into the mounting body (210) and separates from the part to be hoisted. The second driving member (220) is disposed on the mounting body (210) and is connected to the mounting component (230) in a transmission manner to drive the mounting component (230) to switch between the first state and the second state.

3. The lifting device as described in claim 2, characterized in that, The mounting components (230) are multiple symmetrically arranged on the mounting body (210), and a synchronous transmission assembly (240) for driving each mounting component (230) to extend and retract synchronously is provided between the second driving member (220) and the mounting components (230).

4. The lifting device as described in claim 3, characterized in that, The synchronous transmission assembly (240) includes: Synchronous transmission gears are connected to the second driving member (220) in a transmission connection; The first transmission component (241) meshes with the synchronous transmission gear; The second transmission component (242) meshes with the synchronous transmission gear, and the mounting component (230) is symmetrically arranged on the first transmission component (241) and the second transmission component (242).

5. The lifting device as described in claim 4, characterized in that, The mounting body (210) is provided with a safety locking member (243). The first transmission member (241) and the second transmission member (242) are both provided with safety grooves. In the first state, the safety locking member (243) is embedded in the safety groove to prevent the mounting component (230) from retracting.

6. The lifting device as described in claim 4, characterized in that, The first transmission component (241) includes a first transmission part and a first mounting part. The first transmission part is provided with a first transmission rack for meshing with the synchronous transmission gear, and the first mounting part is provided with the mounting component (230). The first transmission part and the first mounting part are connected. The second transmission component (242) includes a second transmission part and a second mounting part. The second transmission part is provided with a second transmission rack for meshing with the synchronous transmission gear, and the second mounting part is provided with the mounting component (230). The second transmission part and the second mounting part are connected.

7. The lifting device as described in claim 4, characterized in that, The first transmission member (241) and the second transmission member (242) are arranged in a centrally symmetrical manner with respect to the synchronous transmission gear.

8. A loading system, characterized in that, Includes the lifting device as described in any one of claims 1 to 7.

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