Auxiliary positioning device

Abstract

The present invention discloses an auxiliary positioning device, which relates to the field of crane technology. The auxiliary positioning device includes a base, a first limiting plate, a second limiting plate and a first pushing mechanism. The first limiting plate and the second limiting plate are both fixedly connected to the base, and a limiting cavity for the spreader plate hook to extend into is formed between the first limiting plate and the second limiting plate. The first pushing mechanism is installed on the first limiting plate, and the first pushing mechanism is used to push the spreader plate hook toward the second limiting plate when the spreader plate hook is in contact with the base, so as to assist in adjusting the position of the spreader plate hook. Compared with the prior art, the auxiliary positioning device provided by the present invention adopts the limiting cavity provided between the first limiting plate and the second limiting plate and the first pushing mechanism installed on the first limiting plate, so that the position of the spreader plate hook can be automatically adjusted, with a high degree of mechanization, time and labor saving, high positioning efficiency, and safety and reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and in particular to an auxiliary positioning device. Background Art

[0002] Bridge cranes are lifting equipment installed above workshops, warehouses, and material yards to lift materials. They are widely used in scenarios where materials need to be transported. Today's bridge cranes first use multiple spreader hooks hung on the beam to lift the materials, and then transport the materials by moving the beam. In this process, due to the different sizes of different materials, it is necessary to adjust the spacing between adjacent spreader hooks to meet the lifting needs of different materials. The current method of adjusting the position of the spreader hook is usually done manually. The staff needs to stand on a ladder and apply a thrust to the spreader hook to assist in adjusting the position of the spreader hook. However, this is time-consuming and labor-intensive, with low adjustment efficiency and poor safety.

[0003] In view of this, it is particularly important to design and manufacture an auxiliary positioning device with high positioning efficiency, especially in the application of bridge cranes. Summary of the Invention

[0004] The object of the present invention is to provide an auxiliary positioning device that can realize automatic adjustment of the position of the spreader plate hook, has a high degree of mechanization, saves time and labor, has high positioning efficiency, and is safe and reliable.

[0005] The present invention is achieved by adopting the following technical solutions.

[0006] An auxiliary positioning device is used to assist the spreader plate hook of a bridge crane in position adjustment. The auxiliary positioning device includes a base, a first limit plate, a second limit plate and a first pushing mechanism. The first limit plate and the second limit plate are both fixedly connected to the base. A limit cavity for the spreader plate hook to extend into is formed between the first limit plate and the second limit plate. The first pushing mechanism is installed on the first limit plate. The first pushing mechanism is used to push the spreader plate hook toward the second limit plate when the spreader plate hook is in contact with the base, so as to assist in adjusting the position of the spreader plate hook.

[0007] Optionally, the first pushing mechanism includes a first driving member, a mounting frame and a pushing member. The first driving member is installed on the first limiting plate and is transmission-connected to the mounting frame. The mounting frame is fixedly connected to the pushing member. The pushing member is arranged on the top of the first limiting plate. The pushing member is used to push the sling plate hook.

[0008] Optionally, the pushing member includes a fixed shaft and a roller, the mounting frame is fixedly connected to the fixed shaft, the roller is rotatably mounted outside the fixed shaft, and the roller is used to guide the spreader plate hook when the spreader plate hook descends to the limiting cavity.

[0009] Optionally, the first driving member is a pneumatic cylinder, a hydraulic cylinder or an electric push rod.

[0010] Optionally, the auxiliary positioning device also includes a second pushing mechanism, which is installed on the second limiting plate. The second pushing mechanism is used to push the sling plate hook toward the first limiting plate when the sling plate hook is in contact with the base to assist in adjusting the position of the sling plate hook.

[0011] Optionally, the auxiliary positioning device also includes a jacking mechanism, the base is provided with a mounting groove connected to the limiting cavity, the jacking mechanism is installed in the mounting groove, and the jacking mechanism is used to lift the sling plate hook upward when the sling plate hook is in contact with the base.

[0012] Optionally, the lifting mechanism includes a second driving member and a lifting plate, the second driving member is transmission-connected to the lifting plate, the lifting plate is arranged in the installation groove, and the lifting plate is provided with a limiting groove, which is used to limit the sling plate hook.

[0013] Optionally, the auxiliary positioning device further includes a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is fixedly connected between the base and the first limiting plate, and the second reinforcing rib is fixedly connected between the base and the second limiting plate.

[0014] Optionally, the auxiliary positioning device also includes a first guide plate and a second guide plate, the first guide plate is fixedly connected to the first limit plate, and the second guide plate is fixedly connected to the second limit plate, and the first guide plate and the second guide plate are used to guide the sling plate hook when the sling plate hook extends laterally into the limit cavity.

[0015] Optionally, the auxiliary positioning device also includes a cleaning mechanism and a lubricating mechanism. The cleaning mechanism is installed on the first limiting plate and is used to clean the spreader plate hook. The lubricating mechanism is installed on the second limiting plate and is used to inject lubricating oil into the spreader plate hook.

[0016] The auxiliary positioning device provided by the present invention has the following beneficial effects:

[0017] The auxiliary positioning device provided by the present invention has a first limiting plate and a second limiting plate both fixedly connected to the base, a limiting cavity for the spreader plate hook to extend into is formed between the first limiting plate and the second limiting plate, and a first pushing mechanism is installed on the first limiting plate. The first pushing mechanism is used to push the spreader plate hook toward the second limiting plate when the spreader plate hook abuts against the base, so as to assist in adjusting the position of the spreader plate hook. Compared with the prior art, the auxiliary positioning device provided by the present invention can realize automatic adjustment of the position of the spreader plate hook due to the use of the limiting cavity provided between the first limiting plate and the second limiting plate and the first pushing mechanism installed on the first limiting plate. It has a high degree of mechanization, saves time and effort, has high positioning efficiency, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 An axonometric view of an auxiliary positioning device provided in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of the coordination between the spreader plate hook and the crossbeam applied to the auxiliary positioning device provided in an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a spreader plate hook applied to the auxiliary positioning device provided in an embodiment of the present invention;

[0022] Figure 4 A front view of the auxiliary positioning device provided by an embodiment of the present invention;

[0023] Figure 5 A schematic structural diagram of a first pushing mechanism in an auxiliary positioning device provided in an embodiment of the present invention;

[0024] Figure 6 This is a structural schematic diagram of the jacking mechanism in the auxiliary positioning device provided by an embodiment of the present invention.

[0025] Icons: 100- auxiliary positioning device; 110- base; 111- mounting groove; 112- lifting ring; 120- first limiting plate; 121- limiting cavity; 130- second limiting plate; 140- first pushing mechanism; 141- first driving member; 142- mounting frame; 143- pushing member; 144- fixed shaft; 145- roller; 150- second pushing mechanism; 160- lifting mechanism; 161- second driving member; 162- lifting plate; 163- limiting groove; 170- first reinforcing rib; 180- second reinforcing rib; 190- first guide plate; 191- second guide plate; 200- sling plate hook; 210- axle pin; 300- crossbeam; 310- arc groove; 311- first end portion; 312- second end portion. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the terms "inner," "outer," "upper," "lower," and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 An embodiment of the present invention provides an auxiliary positioning device 100 for assisting in adjusting the position of a spreader hook 200 of a bridge crane (not shown). This device automatically adjusts the position of the spreader hook 200, providing a high degree of mechanization, time-saving and labor-saving operation, high positioning efficiency, and safety and reliability.

[0033] It should be noted that the auxiliary positioning device 100 is applied to a bridge crane. The bridge crane is provided with a movable crossbeam 300. The crossbeam 300 is provided with an arcuate slot 310, the opening of which is arranged vertically downward. The sling plate hook 200 is hung in the arcuate slot 310. The sling plate hook 200 is used to lift materials. Specifically, the sling plate hook 200 is provided with an axle pin 210, which is provided through the arcuate slot 310 and slides with the arcuate slot 310. The crossbeam 300 can carry the sling plate hook 200 through the cooperation of the axle pin 210 and the arcuate slot 310, thereby lifting the materials and realizing the material lifting function.

[0034] In this embodiment, the arcuate slot 310 is relatively provided with a first end 311 and a second end 312. When the axle pin 210 is engaged with the first end 311, the sling plate hook 200 is located in the first position, and when the axle pin 210 is engaged with the second end 312, the sling plate hook 200 is located in the second position. During the actual use of the bridge crane, due to the different sizes of materials, it is necessary to control the axle pin 210 to slide between the first end 311 and the second end 312, that is, to control the sling plate hook 200 to flexibly switch between the first position and the second position to meet the lifting requirements of different materials. During this process, the auxiliary positioning device 100 is used to assist the sling plate hook 200 in position adjustment. In conjunction with the displacement of the crossbeam 300 under electronic control operation, the position of the sling plate hook 200 can be automatically adjusted. This has a high degree of mechanization, saves time and effort, has high positioning efficiency, and is safe and reliable.

[0035] The auxiliary positioning device 100 includes a base 110, a first limiting plate 120, a second limiting plate 130, a first pushing mechanism 140, a second pushing mechanism 150, a lifting mechanism 160, a first reinforcing rib 170, a second reinforcing rib 180, a first guide plate 190, a second guide plate 191, a cleaning mechanism (not shown), and a lubricating mechanism (not shown). The first limiting plate 120 and the second limiting plate 130 are both fixedly connected to the base 110. A limiting cavity 121 is formed between the first limiting plate 120 and the second limiting plate 130 for the spreader plate hook 200 to extend into. The first limiting plate 120 and the second limiting plate 130 work together to limit the spreader plate hook 200 and prevent it from falling out of the limiting cavity 121. The first pushing mechanism 140 is mounted on the first limiting plate 120. The first pushing mechanism 140 is used to push the spreader plate hook 200 toward the second limiting plate 130 when the spreader plate hook 200 abuts the base 110, thereby assisting in adjusting the position of the spreader plate hook 200. The second pushing mechanism 150 is mounted on the second limiting plate 130. The second pushing mechanism 150 is used to push the spreader plate hook 200 toward the first limiting plate 120 when the spreader plate hook 200 abuts the base 110, thereby assisting in adjusting the position of the spreader plate hook 200.

[0036] In this embodiment, the distance between the first limiting plate 120 and the second limiting plate 130 is greater than the thickness of the spreader plate hook 200, so that the crossbeam 300 can drive the spreader plate hook 200 to extend into the limiting cavity 121. Specifically, the crossbeam 300 can drive the spreader plate hook 200 to extend into the limiting cavity 121 from top to bottom, and can also drive the spreader plate hook 200 to extend into the limiting cavity 121 horizontally from the sides of the first limiting plate 120 and the second limiting plate 130. The direction in which the spreader plate hook 200 extends into the limiting cavity 121 is not specifically limited.

[0037] It should be noted that the first end 311 of the arcuate slot 310 is disposed above the first limiting plate 120, and the second end 312 of the arcuate slot 310 is disposed above the second limiting plate 130. When the axle pin 210 of the sling plate hook 200 is engaged with the first end 311, the sling plate hook 200 is located in the first position. At this time, if the position of the sling plate hook 200 is to be adjusted to the second position, the first pushing mechanism 140 is controlled to push the sling plate hook 200 toward the second limiting plate 130, so that the first pushing mechanism 140 applies a thrust to the sling plate hook 200, thereby causing the axle pin 210 of the sling plate hook 200 to have a tendency to slide toward the second end 312. Then, the crossbeam 300 is controlled to move in the direction from the second end 312 toward the first end 311, thereby easily achieving the position adjustment of the sling plate hook 200. When the axle pin 210 of the sling plate hook 200 cooperates with the second end 312, the sling plate hook 200 is in the second position. At this time, if the position of the sling plate hook 200 is to be adjusted to the first position, the second pushing mechanism 150 is controlled to push the sling plate hook 200 in the direction close to the first limit plate 120, so that the second pushing mechanism 150 applies a thrust to the sling plate hook 200, thereby making the axle pin 210 of the sling plate hook 200 have a tendency to slide toward the first end 311. At this time, the crossbeam 300 is controlled to move in the direction from the first end 311 toward the second end 312, so that the position adjustment of the sling plate hook 200 can be easily achieved.

[0038] The first driving mechanism 140 includes a first driving member 141, a mounting bracket 142, and a pushing member 143. The first driving member 141 is mounted on the first limiting plate 120 and is in transmission connection with the mounting bracket 142. The first driving member 141 is capable of driving the mounting bracket 142 to move. The mounting bracket 142 is fixedly connected to the pushing member 143, which is disposed at the top of the first limiting plate 120 and is used to push the spreader plate hook 200. Specifically, the first driving member 141, via the mounting bracket 142, can drive the pushing member 143 toward or away from the second limiting plate 130, thereby pushing or resetting the spreader plate hook 200.

[0039] Please refer to Figure 5The pusher 143 includes a fixed shaft 144 and a roller 145. The mounting frame 142 is fixedly connected to the fixed shaft 144, and the roller 145 is rotatably mounted on the fixed shaft 144. The roller 145 is used to guide the sling plate hook 200 when it descends into the limiting cavity 121. Specifically, as the sling plate hook 200 extends from top to bottom into the limiting cavity 121, since the roller 145 is disposed on the top of the first limiting plate 120 and is disposed close to the limiting cavity 121, the roller 145 can roll with the sling plate hook 200 to limit and guide the sling plate hook 200, thereby preventing the sling plate hook 200 from being worn.

[0040] In this embodiment, the specific structure of the second pushing mechanism 150 is the same as that of the first pushing mechanism 140 , and will not be described in detail herein.

[0041] Please refer to Figure 6 It is worth noting that the base 110 is provided with a mounting groove 111 that is in communication with the limiting cavity 121. The lifting mechanism 160 is installed in the mounting groove 111. The lifting mechanism 160 is used to lift the sling plate hook 200 upward when the sling plate hook 200 is in contact with the base 110, so that the shaft pin 210 is suspended between the top wall and the bottom wall of the arc-shaped groove 310, thereby reducing the friction of the shaft pin 210 sliding in the arc-shaped groove 310, and facilitating the position adjustment function of the sling plate hook 200. Specifically, the lifting height of the lifting mechanism 160 first increases and then decreases to fit the shape of the arc-shaped groove 310, so that the shaft pin 210 will never generate a large friction force with the side wall of the arc-shaped groove 310 during the position adjustment process of the sling plate hook 200, thereby ensuring that the position adjustment process is stable and reliable and avoiding wear between the shaft pin 210 and the side wall of the arc-shaped groove 310.

[0042] The lifting mechanism 160 includes a second drive member 161 and a lifting plate 162. The second drive member 161 is in transmission connection with the lifting plate 162, and can drive the lifting plate 162 upward or downward to lift or reset the spreader plate hook 200. Specifically, the lifting plate 162 is disposed within the mounting groove 111, which is used to accommodate and conceal the lifting plate 162. The lifting plate 162 defines a limiting groove 163, which is used to limit the spreader plate hook 200 to prevent it from disengaging from the lifting plate 162.

[0043] In this embodiment, the first driving member 141 and the second driving member 161 are both cylinders, but this is not limited to this. In other embodiments, the first driving member 141 and the second driving member 161 can both be hydraulic cylinders or electric push rods, and there is no specific limitation on the driving method of the first driving member 141 and the second driving member 161.

[0044] Please continue to refer to Figure 1 It should be noted that the first reinforcing rib 170 is fixedly connected between the base 110 and the first limiting plate 120. The first reinforcing rib 170 is disposed on the side of the first limiting plate 120 away from the second limiting plate 130. The first reinforcing rib 170 is used to improve the connection strength between the first limiting plate 120 and the base 110, preventing the first limiting plate 120 from being displaced or deformed relative to the base 110. The second reinforcing rib 180 is fixedly connected between the base 110 and the second limiting plate 130. The second reinforcing rib 180 is disposed on the side of the second limiting plate 130 away from the first limiting plate 120. The second reinforcing rib 180 is used to improve the connection strength between the second limiting plate 130 and the base 110, preventing the second limiting plate 130 from being displaced or deformed relative to the base 110.

[0045] Furthermore, the first guide plate 190 is fixedly connected to the first limiting plate 120 and is disposed on a side surface of the first limiting plate 120. The second guide plate 191 is fixedly connected to the second limiting plate 130 and is disposed on a side surface of the second limiting plate 130. The first guide plate 190 and the second guide plate 191 are configured in a flared shape. The first guide plate 190 and the second guide plate 191 are used to guide the sling plate hook 200 when the sling plate hook 200 laterally extends into the limiting cavity 121. Specifically, when the sling plate hook 200 extends horizontally from the side surfaces of the first limiting plate 120 and the second limiting plate 130 into the limiting cavity 121, the first guide plate 190 and the second guide plate 191 can both limit and guide the sling plate hook 200, so as to facilitate feeding the sling plate hook 200 into the limiting cavity 121.

[0046] In this embodiment, a cleaning mechanism is mounted on the first limiting plate 120 and is used to clean the spreader plate hook 200 to remove debris and dust on the spreader plate hook 200. A lubricating mechanism is mounted on the second limiting plate 130 and is used to apply lubricating oil to the spreader plate hook 200 to improve the lubrication of the hinge of the spreader plate hook 200.

[0047] In this embodiment, a lifting ring 112 is provided on the base 110 , and the lifting ring 112 is used for lifting by a hook or a wire rope to facilitate the transportation and movement of the auxiliary positioning device 100 .

[0048] It should be noted that, during the adjustment process of the spreader plate hook 200, the position of the base 110 is first fixed so that the first limit plate 120 and the second limit plate 130 are arranged parallel to the spreader plate hook 200; then the crossbeam 300 is used to drive the spreader plate hook 200 to extend into the limit cavity 121. During this process, the roller 145 or the first guide plate 190 and the second guide plate 191 can guide the spreader plate hook 200; when the spreader plate hook 200 moves to the middle of the limit cavity 121 and abuts against the base 110, the first pushing mechanism 140 or The second pushing mechanism 150 applies a thrust to the spreader plate hook 200, and the jacking mechanism 160 lifts the spreader plate hook 200 upward, and at the same time the crossbeam 300 is displaced so that the axle pin 210 of the spreader plate hook 200 slides in the arc groove 310; when the axle pin 210 slides into place, the axle pin 210 cooperates with the first end 311 or the second end 312, and the spreader plate hook 200 is now in the first position or the second position; thereafter, the crossbeam 300 drives the spreader plate hook 200 to extend out of the limiting cavity 121, and the position adjustment action of the spreader plate hook 200 is completed.

[0049] In the auxiliary positioning device 100 provided in an embodiment of the present invention, a first limiting plate 120 and a second limiting plate 130 are both fixedly connected to the base 110. A limiting cavity 121 for inserting the sling plate hook 200 is formed between the first limiting plate 120 and the second limiting plate 130. A first pushing mechanism 140 is mounted on the first limiting plate 120. The first pushing mechanism 140 is used to push the sling plate hook 200 toward the second limiting plate 130 when the sling plate hook 200 abuts against the base 110, thereby assisting in adjusting the position of the sling plate hook 200. Compared with the prior art, the auxiliary positioning device 100 provided by the present invention can automatically adjust the position of the sling plate hook 200 due to the use of the limiting cavity 121 disposed between the first limiting plate 120 and the second limiting plate 130 and the first pushing mechanism 140 mounted on the first limiting plate 120. This has a high degree of mechanization, saves time and effort, has high positioning efficiency, and is safe and reliable.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An auxiliary positioning device for assisting the position adjustment of a spreader hook (200) of a bridge crane, characterized in that: The auxiliary positioning device includes a base (110), a first limiting plate (120), a second limiting plate (130) and a first pushing mechanism (140), wherein the first limiting plate (120) and the second limiting plate (130) are both fixedly connected to the base (110), a limiting cavity (121) for the sling plate hook (200) to extend therein is formed between the first limiting plate (120) and the second limiting plate (130), and the first pushing mechanism (140) is installed on the first limiting plate (120), and the first pushing mechanism (140) is used to push the sling plate hook (200) toward the second limiting plate (130) when the sling plate hook (200) is in contact with the base (110), so as to assist in adjusting the position of the sling plate hook (200); The first pushing mechanism (140) includes a first driving member (141), a mounting frame (142) and a pushing member (143); the first driving member (141) is mounted on the first limiting plate (120) and is transmission-connected to the mounting frame (142); the mounting frame (142) is fixedly connected to the pushing member (143); the pushing member (143) is disposed on the top of the first limiting plate (120); and the pushing member (143) is used to push the spreader plate hook (200); The pushing member (143) includes a fixed shaft (144) and a roller (145), the mounting frame (142) is fixedly connected to the fixed shaft (144), and the roller (145) is rotatably sleeved outside the fixed shaft (144). The roller (145) is used to guide the spreader plate hook (200) when the spreader plate hook (200) descends to the limiting cavity (121).

2. The auxiliary positioning device according to claim 1, characterized in that: The first driving member (141) is a cylinder, a hydraulic cylinder or an electric push rod.

3. The auxiliary positioning device according to claim 1, characterized in that: The auxiliary positioning device also includes a second pushing mechanism (150), which is installed on the second limiting plate (130). The second pushing mechanism (150) is used to push the spreader plate hook (200) toward the first limiting plate (120) when the spreader plate hook (200) is in contact with the base (110), so as to assist in adjusting the position of the spreader plate hook (200).

4. The auxiliary positioning device according to claim 1, characterized in that: The auxiliary positioning device further includes a lifting mechanism (160), the base (110) is provided with a mounting groove (111) connected to the limiting cavity (121), the lifting mechanism (160) is installed in the mounting groove (111), and the lifting mechanism (160) is used to lift the spreader plate hook (200) upward when the spreader plate hook (200) is in contact with the base (110).

5. The auxiliary positioning device according to claim 4, characterized in that: The lifting mechanism (160) includes a second driving member (161) and a lifting plate (162), wherein the second driving member (161) is transmission-connected to the lifting plate (162), the lifting plate (162) is arranged in the installation groove (111), and the lifting plate (162) is provided with a limiting groove (163), and the limiting groove (163) is used to limit the spreader plate hook (200).

6. The auxiliary positioning device according to claim 1, characterized in that: The auxiliary positioning device further comprises a first reinforcing rib (170) and a second reinforcing rib (180), wherein the first reinforcing rib (170) is fixedly connected between the base (110) and the first limiting plate (120), and the second reinforcing rib (180) is fixedly connected between the base (110) and the second limiting plate (130).

7. The auxiliary positioning device according to claim 1, characterized in that: The auxiliary positioning device also includes a first guide plate (190) and a second guide plate (191), wherein the first guide plate (190) is fixedly connected to the first limiting plate (120), and the second guide plate (191) is fixedly connected to the second limiting plate (130), and the first guide plate (190) and the second guide plate (191) are used to guide the spreader plate hook (200) when the spreader plate hook (200) extends laterally into the limiting cavity (121).

8. The auxiliary positioning device according to claim 1, characterized in that: The auxiliary positioning device further comprises a cleaning mechanism and a lubricating mechanism, wherein the cleaning mechanism is mounted on the first limiting plate (120) and is used to clean the spreader plate hook (200), and the lubricating mechanism is mounted on the second limiting plate (130) and is used to inject lubricating oil into the spreader plate hook (200).

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