CN116969305B

CN116969305B - Lifting appliance, using method thereof and battery production line

Info

Publication number: CN116969305B
Application number: CN202311232749.4A
Authority: CN
Inventors: 吴凯; 邱世平
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2023-12-26
Anticipated expiration: 2043-09-22
Also published as: CN116969305A

Abstract

The application discloses a lifting appliance, a using method thereof and a battery production line. The hoist includes the support body, first gallows, the second gallows, adjusting part and coupling assembling, first gallows and second gallows separate the interval ground and erect in the support body in first direction and first gallows and second gallows extend along the second direction that intersects with first direction respectively, both ends in the second direction of first gallows and both ends in the second direction of second gallows are equipped with at least one coupling assembling respectively, coupling assembling is used for being connected with hoist and mount work piece, adjusting part includes first adjusting part and second adjusting part, at least one of first gallows and second gallows is connected with the support body through first adjusting part, first adjusting part is used for adjusting the interval along first direction between first gallows and the second gallows, at least one of first gallows and second gallows is provided with second adjusting part, second adjusting part is used for adjusting the relative position along the second direction between coupling assembling each other.

Description

Lifting appliance, using method thereof and battery production line

Technical Field

The application relates to the technical field of batteries, in particular to a lifting appliance, a using method thereof and a battery production line.

Background

In a production process such as a battery, it is often necessary to hoist a battery module, a battery pack, or the like, in which battery cells have been put into a box. The lifting may be performed, for example, by means of a lifting appliance. In this case, the size of the battery module or the battery pack case to be hoisted, the portion to be connected to the hoist, and the like may be changed, and accordingly, the hoist may be adjusted or replaced to accommodate various changes. In addition, for production of, for example, a battery, improvement in production efficiency is one of the targets that the industry continues to pursue. Therefore, how to rapidly hoist workpieces of different sizes is one of the developing directions in the industry.

Disclosure of Invention

In view of the technical problems, the application provides a lifting appliance, a battery production line and a using method of the lifting appliance, so that the lifting appliance can be quickly adjusted to meet the lifting demands of workpieces with different specifications.

In a first aspect, the present application provides a lifting appliance, the lifting appliance includes a frame body, a first lifting frame, a second lifting frame, an adjusting component, a connecting component and a weighing device, the first lifting frame and the second lifting frame are erected on the frame body at intervals in a first direction, the first lifting frame and the second lifting frame extend along a second direction intersecting with the first direction respectively, at least one connecting component is respectively arranged at two ends of the first lifting frame in the second direction and at two ends of the second lifting frame in the second direction, the connecting component is used for being connected with a lifting workpiece, the adjusting component comprises a first adjusting component and a second adjusting component, at least one of the first lifting frame and the second lifting frame is connected with the frame body through the first adjusting component, the first adjusting component is used for adjusting a distance between the first lifting frame and the second lifting frame along the first direction, at least one of the first lifting frame and the second lifting frame is provided with the second adjusting component is used for adjusting a position between the second lifting frame and the second adjusting component along the second direction.

Because the two ends of the first hanging bracket and the two ends of the second hanging bracket are respectively provided with at least one connecting component, the connecting components can at least connect the hanging workpieces in four directions, and stable connection is provided. Because can be used for the relative position each other with the coupling assembling that hoist and mount work piece is connected through adjusting the subassembly, consequently when the specification etc. of hoist and mount work piece changes and need adjust the position of coupling assembling that is connected with hoist and mount work piece, can realize through adjusting the subassembly to can adjust hoist fast in order to satisfy the hoist and mount demand of the work piece of different specifications. Since the first hanger is connected to the frame body by the first adjusting assembly and/or the second hanger is connected to the frame body by the first adjusting assembly, the position of the first hanger and/or the second hanger in the first direction relative to the frame body can be adjusted by the first adjusting assembly. That is, the spacing in the first direction between the first hanger and the second hanger may be changed by the first adjustment assembly. Therefore, the relative positions (including the distances) between the connecting components can be easily matched with the workpieces to be hoisted, so that the workpieces such as battery box bodies with different specifications can be hoisted by the hoisting tool without replacing the hoisting tool, and the operation time is saved compared with the replacement of the hoisting tool. The second adjusting component can adjust the relative positions of the connecting components along the second direction, so that the compatibility of hoisting workpieces with different specifications can be further improved.

In some embodiments, the first adjustment assembly includes a slide rail, a slide seat, a locating pin, and a plurality of first engagement portions; the sliding rail is arranged on the frame body; the sliding seat is arranged on the first hanging bracket or the second hanging bracket and can slide along the sliding rail, a pin hole for inserting the positioning pin is formed in the sliding seat, a plurality of first embedded parts are arranged on the frame body, and the positioning pin can be inserted into any one of the first embedded parts and the pin hole.

The sliding seat can freely slide on the sliding rail, and the first hanging bracket or the second hanging bracket connected with the sliding seat changes the position along with the sliding of the sliding seat, so that the positions of the first hanging bracket and the second hanging bracket relative to the bracket body can be easily changed through the matching of the sliding rail and the sliding seat with a simple structure. A plurality of first jogged parts are laid on the support body, and the pinhole has been seted up on the sliding seat, and the locating pin can insert pinhole and first jogged part, can realize the fixed of sliding seat position with simple structure from this to fix the position of first gallows, second gallows for the support body. Because the positioning and the fixing are carried out through the matching of the positioning pin, the pin hole and the first embedded part, the insertion and the extraction are convenient and quick, and the relative position and the distance between the connecting components of the lifting appliance can be quickly adjusted.

In some embodiments, the plurality of first engaging portions are disposed on the frame along an extending direction of the sliding rail, and the first engaging portions are spaced apart from each other.

Because the first jogged portion is equipped with a plurality of, and adjacent first jogged portion separates the interval, therefore first gallows, second gallows have big accommodation, and can select the position that the locating pin should insert rapidly, make the regulation to hoist simple.

In some embodiments, the first fitting portion includes a through hole that penetrates the housing.

The long positioning pins are inserted into the pin holes and the through holes, so that the positions of the first hanging bracket and the second hanging bracket can be fixed relative to the bracket body, and the operation is simple and time-saving. In addition, the sliding seat of the first hanging bracket and the sliding seat of the second hanging bracket can be fastened on the bracket body through the threaded fit of the nut and the locating pin, so that accidental sliding risks, safety risks and the like caused by accidental falling of the locating pin are avoided.

In some embodiments, the sliding seat includes a first connecting piece connected with the first hanger or the second hanger, a sliding rail clamping portion provided on the first connecting piece, and a second connecting piece provided to connect with the first connecting piece, where the sliding rail clamping portion is clamped to the sliding rail and can slide along the sliding rail, and at least one pin hole is provided on the second connecting piece.

Because the first connecting piece is provided with the slide rail clamping part, the first connecting piece can slide on the slide rail, and the first connecting piece is connected with the first hanging frame or the second hanging frame, and the first connecting piece drives the first hanging frame or the second hanging frame to slide when sliding, the position of the first hanging frame or the second hanging frame relative to the frame body can be easily changed based on a simple structure. The first connecting piece is also connected with the second connecting piece, a pin hole is arranged on the second connecting piece, and the locating pin is inserted into the pin hole and the first embedded part to fix the position of the second connecting piece together with the first hanging bracket or the second hanging bracket relative to the frame. In addition, since the first connecting piece and the second connecting piece are provided in connection, the first connecting piece and the second connecting piece can be handled as one member, the number of members is reduced, and the mounting is easy.

In some embodiments, at least one of the connection assemblies provided to the first hanger is connected to the first hanger by the second adjustment assembly, and/or at least one of the connection assemblies provided to the second hanger is connected to the second hanger by the second adjustment assembly.

Since the at least one connecting component is connected with the first hanging bracket through the second adjusting component, the position of the connecting component relative to the first hanging bracket is adjusted through the second adjusting component; since the at least one connecting component is connected with the second hanging bracket through the second adjusting component, the position of the connecting component relative to the second hanging bracket is adjusted through the second adjusting component; thereby adjust the relative position along the second direction of coupling assembling each other, consequently can further improve the compatibility to the hoist and mount work piece of different specifications.

In some embodiments, the first hanger and the second hanger are connected to the frame by the first adjustment assembly, respectively; and the two ends of the first hanging bracket and the two ends of the second hanging bracket are respectively connected with one connecting component through the second adjusting component.

Because both the first hanging bracket and the second hanging bracket are provided with the first adjusting component and the second adjusting component, the relative positions of the connecting components can be adjusted in the first direction and the second direction, the adjustable range of the connecting components is increased, and the compatible range of the hanging workpieces with different specifications is further improved.

In some embodiments, the second adjusting component includes a fixing member, a bolt, and a plurality of second engaging portions, a bolt hole into which the bolt is inserted is formed in the fixing member, the plurality of second engaging portions are disposed at the first hanger or the second hanger, the bolt can be inserted into any one of the plurality of second engaging portions and the bolt hole, and the connecting component is connected to the fixing member.

The bolt is inserted into the second embedded part and the bolt hole formed in the fixing piece, and the connecting component is connected to the fixing piece, so that the position of the connecting component relative to the first hanging frame or the second hanging frame can be fixed. The bolt is pulled out, the bolt hole on the fixing piece is aligned with the second embedded part at any position, and the bolt is inserted again, so that the connection position of the connecting component relative to the first hanging frame or the second hanging frame, namely the relative position of the connecting components, can be easily adjusted, and the hoisting device can be rapidly suitable for hoisting workpieces of different specifications.

In some embodiments, the plurality of second engaging portions are provided at intervals to the first hanger or the second hanger.

Because the second jogged portion is equipped with a plurality of, separates the interval between adjacent second jogged portion, therefore coupling assembling's regulation scope on first gallows or second gallows is big, and can select the position that the bolt should be inserted promptly for the regulation to hoist is simple.

In some embodiments, the second fitting portion includes a through hole.

By inserting the long bolt into the bolt hole and the through hole, the fixing member can be fixed to the second fitting portion, and the position of the connection assembly with respect to the first hanger or the second hanger can be easily fixed. In addition, the fixing piece can be fastened to the first hanging frame or the second hanging frame through the threaded fit of the nut and the bolt, so that the risk that the bolt, the connecting assembly and even the hanging workpiece accidentally fall off and the safety risk brought by the risk are avoided.

In some embodiments, the connection assembly is connected to the fixture by a strap.

Because coupling assembling connects in the mounting through the ribbon that has certain length, consequently, can provide great hoist and mount space for hoist and mount work piece, avoid hoist and mount work piece and support body etc. to interfere, can design coupling assembling to be less moreover, alleviateed the dead weight of hoist itself. And when the connecting component is connected with the hoisting workpiece, the position of the connecting component can be flexibly changed, so that the lifting appliance can be quickly connected.

In some embodiments, the hanger further comprises a hanger rope for suspending the frame body and the first hanger and the second hanger, the hanger rope being connected to the first hanger and the second hanger, and/or the hanger rope being connected to the frame body.

The whole spreader can be suspended in place by means of spreader lifting ropes connected to a crane, hoist or the like.

In some embodiments, the spreader further comprises a weight scale for weighing the hoisted workpiece, the weight scale being connected to the spreader hoist rope.

By adding the weighing device to the lifting appliance, the weight of the lifted workpiece can be measured while the lifting appliance is lifted, additional weighing is not needed, and the operation time and the operation steps are saved. Moreover, whether the lifted workpiece meets the related weight requirement can be judged through the measured weight. Because the weight counter is connected with the lifting rope of the lifting appliance, the weight counter is lifted by the crane, the crane and the like, and the weight counter lifts the frame body, the first lifting frame, the second lifting frame and the like of the lifting appliance and lifts the workpiece through the lifting rope of the lifting appliance, so that the weight of the workpiece can be weighed while the workpiece is lifted, and only one weight counter is needed to be arranged.

In some embodiments, the weight meter comprises a transmitting means for transmitting information about the measured weight.

This enables the subsequent processing based on the information about the weighed weight transmitted by the weighing machine.

In some embodiments, the frame includes a handle.

Therefore, a user of the lifting appliance can hold the handle to control the lifting appliance to be in the air, and can also pull the handle to adjust the relative position relationship between the frame body and the first lifting frame and the second lifting frame, so that the lifting appliance is convenient to operate.

In a second aspect, the present application provides a method for using a lifting appliance as described above, the lifting appliance including a frame body, a first lifting frame, a second lifting frame, an adjusting assembly and a connecting assembly, the first lifting frame and the second lifting frame being mounted on the frame body at intervals in a first direction and extending in a second direction intersecting the first direction, at least one of the connecting assemblies being provided at both ends of the first lifting frame in the second direction and at both ends of the second lifting frame in the second direction, respectively, the connecting assembly being for connecting with a lifting workpiece, the adjusting assembly including a first adjusting assembly and a second adjusting assembly, at least one of the first lifting frame and the second lifting frame being connected with the frame body by the first adjusting assembly, the first adjusting assembly being for adjusting a distance between the first lifting frame and the second lifting frame in the first direction, the second adjusting assembly being provided at least one of the first lifting frame and the second lifting frame being for connecting with the second adjusting assembly in the second direction; the using method of the lifting appliance comprises the following steps: and an adjusting step, wherein the relative positions of the connecting components are adjusted through the first adjusting component and/or the second adjusting component.

Because the distance between the connecting components used for being connected with the hoisting workpiece along the first direction can be adjusted through the first adjusting component, the distance between the connecting components used for being connected with the hoisting workpiece along the second direction can be adjusted through the second adjusting component, when the specification of the hoisting workpiece changes and the position of the connecting components connected with the hoisting workpiece needs to be adjusted, the lifting device can be realized through the first adjusting component and the second adjusting component, and therefore the lifting device can be quickly adjusted to meet the lifting demands of workpieces with different specifications through simple operation.

In some embodiments, the first adjusting component includes a sliding rail provided on the frame body, a sliding seat provided on the first hanger or the second hanger, a positioning pin capable of being inserted into a pin hole provided on the sliding seat, and a plurality of first engaging portions arranged on the frame body, and the adjusting step includes: releasing the insertion state of the positioning pin in the first adjustment assembly connected to the first hanger or the second hanger and the first fitting part located at the first position among the plurality of first fitting parts; moving the first hanger or the second hanger connected to the first adjustment assembly, which is released from the inserted state, relative to the frame body in a first direction until the pin hole on the sliding seat on the moved first hanger or the second hanger is aligned with the first fitting portion at a second position among the plurality of first fitting portions; the positioning pin is inserted into the aligned pin hole and the first fitting portion at the second position.

Therefore, through the plug operation of the locating pin and the moving operation of the first hanging bracket and/or the second hanging bracket relative to the frame body, the relative position of the connecting component in the hanging bracket can be adjusted to adapt to the hanging workpieces with different specifications. The operation is simple and time-saving, and the flexibility and the operation efficiency of the hoisting link and even the whole production line are improved.

In some embodiments, at least one of the connection assemblies provided to the first hanger is connected to the first hanger by the second adjustment assembly, and/or at least one of the connection assemblies provided to the second hanger is connected to the second hanger by the second adjustment assembly, the second adjustment assembly including a fixture, a bolt, and a plurality of second engagement portions; the fixing member is provided with a bolt hole into which the bolt is inserted, a plurality of second embedded parts are arranged on the first hanging frame or the second hanging frame, the bolt can be inserted into one of the second embedded parts and the bolt hole, the connecting assembly is connected with the fixing member, and the adjusting step comprises the following steps: releasing the state of insertion of the bolt in the second adjustment assembly connected to the first hanger or the second hanger and the second fitting part located at the third position among the plurality of second fitting parts; moving the connection assembly connected to the second adjustment assembly, which is released from the inserted state, in a second direction with respect to the first hanger or the second hanger until the bolt hole on the fixing member to which the moved connection assembly is connected is aligned with a second fitting portion located at a fourth position among the plurality of second fitting portions; the bolt is inserted into the aligned bolt hole and the second fitting portion at the fourth position.

From this, can adjust the relative position between the coupling assembling through the second adjusting part, further improve the hoist and mount link and even the flexibility and the operating efficiency of whole production line.

In a third aspect, the present application provides a battery production line, comprising: at least one spreader provided in the first aspect of the present application; and the tray is positioned below the frame body and at a preset position between the first hanging frame and the second hanging frame, the hanging workpiece comprises a battery box body, and the connecting component of the hanging tool is connected to the hanging position of the battery box body and places the battery box body on the tray or removes the battery box body from the tray.

The lifting appliance is arranged in the battery production line, so that the lifting appliance can adapt to lifting workpieces of various specifications in the battery production line without replacement, and the flexibility of the battery production line is improved. Particularly, under the condition that the battery production line is used for producing batteries with various specifications, the lifting appliance is not required to be replaced in the lifting link, and the lifting appliance is only required to be adjusted to adapt to the produced battery box bodies of batteries with different specifications, so that the battery box bodies are fed to the tray or are separated from the tray, the flexibility of the battery production line is improved, the operation is simple and convenient, the downtime can be reduced, and the production efficiency of the battery production line is improved.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more readily understood, the following detailed description of the present application is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

fig. 1 is a schematic structural view of a spreader provided in some embodiments of the present application;

fig. 2 is a schematic bottom view of a hanger body and hanger provided in some embodiments of the present application;

FIG. 3 is a schematic perspective view illustrating the structure of a first adjustment assembly provided in some embodiments of the present application;

FIG. 4 is a side view schematic diagram illustrating the structure of a first adjustment assembly provided by some embodiments of the present application;

FIG. 5 is a schematic perspective view illustrating the structure of a second adjustment assembly provided in some embodiments of the present application;

FIG. 6 is a side view schematic diagram illustrating the structure of a spreader provided by some embodiments of the present application;

fig. 7 is a schematic view showing a state in which a hanger provided in some embodiments of the present application lifts a battery;

fig. 8 is a perspective view illustrating a structure of a connection assembly of a spreader provided in some embodiments of the present application;

FIG. 9 is a schematic diagram of a weight scale and controller provided in some embodiments of the present application;

FIG. 10 is a schematic illustration of a hoisting station provided in some embodiments of the present application;

fig. 11 is a flow chart of a method of using a spreader according to some embodiments of the present application;

FIG. 12 is one of the flow charts of the adjustment steps in the method of use of the spreader provided in some embodiments of the present application;

fig. 13 is a second flow chart of the adjusting step in the method for using the lifting appliance according to some embodiments of the present application.

Description of the reference numerals

1. A lifting appliance; 10. a frame body; 111. a first frame member; 112. a second frame member; 113. a third frame member; 114. a reinforcing plate; 12. a first hanger; 14. a second hanger; 16. a first adjustment assembly; 161. a slide rail; 162. a sliding seat; 163. a positioning pin; 164. a first fitting portion; 165. a first connecting piece; 166. a second connecting piece; 167. a slide rail engaging portion; 168. installing a gasket; 18. a connection assembly; 181. a work piece connecting hook; 182. a latch handle; 183. a plug pin; 184. a connecting plate; 185. connecting a retaining ring; 20. a second adjustment assembly; 201. a fixing member; 202. a bolt; 203. a second fitting portion; 204. a connecting pin; 22. a band; 23. lifting rings of the lifting tool; 24. a lifting rope of the lifting appliance; 26. a weight counter; 27. a transmitting device; 28. a handle; 100. a battery; 101. a battery case; 102. a hoisting hole; 200. a controller; 300. a hoisting station; 301. and a tray.

Detailed Description

Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion.

In the description of the embodiments of the present application, the technical terms "first," "second," "third," "fourth," etc. are used merely to distinguish between different objects and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" generally indicates that the associated object is an "or" relationship.

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are orientation or positional relationship based on the drawings, and are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured, operated, or used in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the term "contact" is to be understood in a broad sense as either direct contact or contact across an intermediate layer, as either contact with substantially no interaction force between the two in contact or contact with interaction force between the two in contact.

The present application will be described in detail below.

In a production process such as a battery, it is often necessary to hoist a battery module, a battery pack, or the like, in which battery cells have been put into a box. The hoisting is usually performed by means of a hoist, for example, a work piece connection hook of the hoist is engaged with a hoist hole in the battery box, and the hoist is suspended, transferred to hoist the battery box, and transferred to a predetermined position. There are cases where the position of the hanging hole on the battery box varies according to the specification and model of the battery module, the battery pack, and the like. To cope with this, the slings are usually customized for different specifications of battery modules and battery packs, and replaced according to the use situation.

The inventor of the application notes that the method of customizing the lifting appliance and adapting to the battery modules or the battery packs with different specifications by replacing the lifting appliance cannot meet the requirements of improving the compatibility of the battery production line and further improving the production efficiency of the battery in the industry. The existing lifting appliance has the defects of complex structure, complicated dismounting operation, long time consumption of lifting appliance type changing operation and the like, and is one of factors restricting the improvement of the production efficiency of the battery.

In view of the above-mentioned drawbacks of the prior art, the inventors of the present application have found that if the relative positions of the connection assemblies of the spreader for connection with the workpiece can be quickly changed and positioned, the hoisting requirements of battery boxes of different specifications can be quickly satisfied without time-consuming and labor-consuming replacement of the spreader.

Based on such design concept, the inventor of the present application devised a spreader including a frame body, a first spreader, a second spreader, an adjusting assembly, a connecting assembly, and a weight, the first spreader and the second spreader being erected on the frame body with a space therebetween in a first direction and extending in a second direction intersecting the first direction, respectively, at least one connecting assembly being provided at both ends of the first spreader in the second direction and at both ends of the second spreader in the second direction, respectively, the connecting assembly being for connection with a hoisted workpiece, the adjusting assembly including a first adjusting assembly and a second adjusting assembly, at least one of the first spreader and the second spreader being connected with the frame body through the first adjusting assembly, the first adjusting assembly being for adjusting a distance between the first spreader and the second spreader in the first direction, at least one of the first spreader and the second spreader being provided with the second adjusting assembly, the second adjusting assembly being for adjusting a relative position of the connecting assemblies with each other in the second direction.

Because the two ends of the first hanging bracket and the two ends of the second hanging bracket are respectively provided with at least one connecting component, the connecting components can at least connect the hanging workpieces in four directions, and stable connection is provided. Because the adjusting component is used for adjusting the relative positions of the connecting components connected with the hoisting workpiece, when the specification and the like of the hoisting workpiece change and the positions of the connecting components connected with the hoisting workpiece need to be adjusted, the adjusting component can be used for realizing the adjustment, so that the lifting appliance can be quickly adjusted to meet the hoisting demands of workpieces with different specifications. Since the first hanger is connected to the frame body by the first adjusting assembly and/or the second hanger is connected to the frame body by the first adjusting assembly, the position of the first hanger and/or the second hanger in the first direction relative to the frame body can be adjusted by the first adjusting assembly. That is, the spacing in the first direction between the first hanger and the second hanger may be changed by the first adjustment assembly. Therefore, the relative positions (including the distances) between the connecting components can be easily matched with the workpieces to be hoisted, so that the workpieces such as battery box bodies with different specifications can be hoisted by the hoisting tool without replacing the hoisting tool, and the operation time is saved compared with the replacement of the hoisting tool. The second adjusting component can adjust the relative positions of the connecting components along the second direction, so that the compatibility of hoisting workpieces with different specifications can be further improved.

The lifting appliance provided by the embodiment of the application can be used for lifting battery boxes, but is not limited to, and can also be used for lifting other suitable lifting workpieces. The battery case includes a case in which a battery is stored, a case in which a battery is not stored, and the like.

The battery referred to by embodiments of the present application may be a single physical module that includes one or more battery cells to provide higher voltage and capacity. When a plurality of battery cells are provided, the plurality of battery cells are connected in series, in parallel or in series-parallel through the converging component.

In some embodiments, the battery may be a battery module, and when there are a plurality of battery cells, the plurality of battery cells are arranged and fixed to form one battery module.

In some embodiments, the battery may be a battery module or a battery pack including a case and a battery cell, the battery cell or the battery module being accommodated in the case. In this embodiment of the present application, the battery cell may be a secondary battery, and the secondary battery refers to a battery cell that can activate the active material by charging after discharging the battery cell and continue to use. The battery cell may be a lithium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, or the like, which is not limited in the embodiment of the present application.

The lifting appliance provided by the embodiment of the application can be used in a production line such as a battery production line, and is used for lifting and conveying workpieces in the middle link of production, completing processing and conveying the workpieces in other places from the production line; the device can also be used in a transportation scene, and workpieces and the like are transported by hoisting and carrying; but also in the context of weighing large workpieces.

The following description refers to the accompanying drawings.

Fig. 1 is a schematic structural view of a spreader provided in some embodiments of the present application; fig. 2 is a schematic bottom view of a hanger body and hanger provided in some embodiments of the present application; FIG. 3 is a schematic perspective view illustrating the structure of a first adjustment assembly provided in some embodiments of the present application; FIG. 4 is a side view schematic diagram illustrating the structure of a first adjustment assembly provided by some embodiments of the present application; FIG. 5 is a schematic perspective view illustrating the structure of a second adjustment assembly provided in some embodiments of the present application; FIG. 6 is a side view schematic diagram illustrating the structure of a spreader provided by some embodiments of the present application; fig. 7 is a schematic view showing a state in which a hanger provided in some embodiments of the present application lifts a battery; fig. 8 is a perspective view illustrating a structure of a connection assembly of a spreader provided in some embodiments of the present application; fig. 9 is a schematic diagram of a weight scale and a controller provided in some embodiments of the present application.

As shown in fig. 1, the spreader 1 includes a frame body 10, a first hanger 12, a second hanger 14, an adjustment assembly, a connection assembly 18, and a weight scale 26. The first hanger 12 and the second hanger 14 are erected on the frame body 10 at intervals in a first direction, the first hanger 12 and the second hanger 14 extend along a second direction crossing the first direction, at least one connecting component 18 is arranged at two ends of the first hanger 12 in the second direction and two ends of the second hanger 14 in the second direction respectively, the connecting component 18 is used for being connected with a hoisting workpiece, the adjusting component comprises a first adjusting component 16 and a second adjusting component 20, at least one of the first hanger 12 and the second hanger 14 is connected with the frame body 10 through the first adjusting component 16, the first adjusting component 16 is used for adjusting the distance between the first hanger 12 and the second hanger 14 along the first direction, at least one of the first hanger 12 and the second hanger 14 is provided with the second adjusting component 20, and the second adjusting component 20 is used for adjusting the relative position between the connecting components 18 along the second direction.

The first direction and the second direction according to the embodiments of the present application are two directions that spatially intersect each other, and the intersection includes a vertical intersection. Here, for convenience of explanation, an example will be described in which the extending direction of the first frame member 111 in the frame 10 is taken as a first direction and the extending direction of the second frame member 112 in the frame 10 is taken as a second direction, wherein the first direction and the second direction are perpendicular. It will be appreciated by a person skilled in the art that the first and second directions are not limited to the examples described above, as long as the spreader 1 of the embodiments of the present application is able to perform the respective functions.

The hanger 1 of the embodiment of the present application is used for lifting a workpiece to bring the workpiece into a partially suspended or fully suspended state. The spreader 1 according to the embodiment of the present application may be made of a material commonly used for known spreaders, such as steel, aluminum alloy.

As shown in fig. 2, the frame 10 includes two first frame members 111 and two second frame members 112, and the first frame members 111 and the second frame members 112 are connected to each other to form a frame shape. In the specific embodiment shown in fig. 2, two first frame members 111 extend in a first direction and are arranged parallel to each other, and two second frame members 112 extend in a second direction and are arranged parallel to each other, whereby the two first frame members 111 and the two second frame members 112 enclose a substantially rectangular frame. Here, the substantially rectangular frame is only an example, and the two first frame members 111 and the two second frame members 112 may be formed into frames of other shapes, such as square, trapezoid, and "#" shape, etc., as long as the frame having a load-bearing effect can be formed, and the shape of the frame is not particularly limited in the embodiment of the present application.

As shown in fig. 2, the frame 10 may further include at least one third frame member 113, and the third frame member 113 may be installed between the two first frame members 111 or between the two second frame members 112 to play a role of structural reinforcement. In the example shown in fig. 2, two third frame members 113 are erected in parallel between the two first frame members 111 so as to extend in the second direction. The third frame member 113 may be directly connected to the first frame member 111, or may be connected to the first frame member 111 through a reinforcing plate 114 as shown in fig. 2. For example, the third frame member 113 and the first frame member 111 may be connected to each other by welding both the first frame member 111 and the third frame member 113 to the reinforcing plate 114. The shape of the reinforcing plate 114 is not particularly limited, and may be, for example, an L-shaped plate, a triangular plate, a rectangular plate, or the like, and in the specific example shown in fig. 1 and 2, the reinforcing plate 114 has a substantially chamfered square shape.

As shown in fig. 1 and 2, the first hanger 12 and the second hanger 14 are each formed in a straight strip shape extending in the second direction. The first hanger 12 and the second hanger 14 are erected in parallel to each other on the two first frame members 111 with a space therebetween in the first direction. Here, the shapes and the positional relationship parallel to each other of the first hanger 12 and the second hanger 14 shown in the drawings are only one example, and the hangers may be a structure having a bent portion, and the two hangers may be a structure having different shapes from each other, and the two hangers may not be necessarily disposed in parallel, as long as the hangers have a desired load bearing capacity and are capable of smoothly lifting the lifting work by a lifting rope, a lifting hook, a connection assembly, or the like, and the present application is not particularly limited. In the embodiment shown in fig. 1 and 2, the first hanger 12 and the second hanger 14 are erected on the frame body 10 from above the frame body 10 and form an axisymmetric structure.

As shown in fig. 1 and 2, the first hanger 12 mounted on the frame body 10 (specifically, the first frame body members 111) has an intermediate section between the two first frame body members 111 and extension sections (which may also be referred to as "both end sections") respectively located at both ends of the intermediate section, and at least one connection assembly 18 for connecting with the hanging workpiece is provided on each of the extension sections. In the illustrated embodiment, one connection assembly 18 is provided at each extension. In the present embodiment, the second hanger 14 has the same structure as the first hanger 12, and thus one connection assembly 18 is also provided at each of the two projecting sections (both end portions) of the second hanger 14. That is, the spreader 1 of the present embodiment includes 4 connection assemblies 18 in total for connecting and lifting with 4 positions for lifting a workpiece.

Here, the number of the connection assemblies 18 and the positions on the first hanger 12 and the second hanger 14 are only examples, and may be specifically set according to the shape of the workpiece to be lifted, and the like. For example, a three-point hoist may be provided for hoisting a workpiece by 3 link assemblies 18, in which case two link assemblies 18 may be provided in one of the first hanger 12 and the second hanger 14, and one link assembly 18 may be provided in the other at about the center. In addition, the hoisting work may be hoisted by two connection assemblies 18, in which case one connection assembly 18 may be provided at each of the first hanger 12 and the second hanger 14.

In addition, optionally, the lifting appliance 1 of the embodiment of the application may further include, in addition to the first lifting frame 12 and the second lifting frame 14, one or more intermediate lifting frames, for example, may be added between the first lifting frame 12 and the second lifting frame 14, and a connection assembly is further provided on the intermediate lifting frames, where the intermediate lifting frames may be fixedly connected to the frame body 10, and may also be movably connected to the frame body 10 relative to the frame body 10.

In addition, the first hanger 12 and/or the second hanger 14 are provided with adjustment assemblies for adjusting the relative positions of the connection assemblies 18 with respect to each other. The adjustment assembly may include a first adjustment assembly 16 that adjusts the position of the connection assemblies 18 relative to each other in a first direction or a second adjustment assembly 20 that adjusts the position of the connection assemblies 18 relative to each other in a second direction, although both the first adjustment assembly 16 and the second adjustment assembly 20 may be included. In addition, one of the first hanger 12 and the second hanger 14 may be provided with the first adjustment assembly 16, or both may be provided with the first adjustment assembly 16. In this case, the distance between the first hanger 12 and the second hanger 14 may be adjusted, and accordingly, the relative position in the first direction between the connection assembly 18 provided to the first hanger 12 and the connection assembly 18 provided to the second hanger 14 may be adjusted. In addition, one of the first hanger 12 and the second hanger 14 may be provided with the second adjustment assembly 20, or both may be provided with the second adjustment assembly 20. In this case, the relative position in the second direction between the connection members 18 provided to the first hanger 12 and the connection members 18 provided to the second hanger 14, and/or the relative position in the second direction between the connection members 18 provided to the first hanger 12, and/or the relative position in the second direction between the connection members 18 provided to the second hanger 14 may be adjusted. Further, one hanger (either the first hanger 12 or the second hanger 14) may be provided with one of the first adjustment assembly 16 and the second adjustment assembly 20, or may be provided with both the first adjustment assembly 16 and the second adjustment assembly 20. In this case, the relative position between the connection assemblies 18 in the first direction and/or the relative position between the connection assemblies 18 in the second direction may be adjusted. The device can be set according to specific conditions such as the condition of hoisting the workpiece, the condition of hoisting positions on the hoisting workpiece for being connected with the connecting assembly, the variable range of the specification of the hoisting workpiece and the like.

Since the relative positions of the connecting assemblies 18 for connecting with the hoisting workpieces can be adjusted by the adjusting assemblies, when the positions of the connecting assemblies 18 connected with the hoisting workpieces need to be adjusted due to the change of the specifications of the hoisting workpieces, the lifting appliance 1 can be quickly adjusted to meet the hoisting requirements of the workpieces with different specifications.

In some embodiments of the present application, the adjustment assembly may include a first adjustment assembly 16, the first adjustment assembly 16 for adjusting the relative position of the connection assemblies 18 with respect to each other in a first direction. At least one of the first hanger 12 and the second hanger 14 is connected to the frame body 10 by a first adjustment assembly 16.

In the embodiment shown in fig. 1 and 2, the first hanger 12 and the second hanger 14 are connected to a first frame member 111 of the frame 10 by a first adjustment assembly 16, respectively. As shown in fig. 1 and 2, the spreader 1 is provided with first adjustment assemblies 16 at 4 positions. By means of the first adjusting assembly 16, the first hanger 12 and the second hanger 14 can be respectively and independently moved along the first frame member 111 in the first direction, and the first hanger 12 and the second hanger 14 in the moving process can be mutually moved close to or away from or translate.

In addition, alternatively, one of the first hanger 12 and the second hanger 14 is connected with the first frame member 111 of the frame 10 by the first adjustment assembly 16, and the other is fixedly connected with respect to the first frame member 111. Such a configuration may also allow for a change in the spacing between the first hanger 12 and the second hanger 14, and thus a change in the relative position between the connection assembly 18 provided to the first hanger 12 and the connection assembly 18 provided to the second hanger 14.

In practical use of the hanger 1 according to the embodiment of the present application shown in fig. 1 and 2, the positions of the first hanger 12 and the second hanger 14 relative to the frame 10 may be adjusted by 4 first adjusting assemblies 16 according to the size of the lifted workpiece, so that the two connecting assemblies 18 provided on the first hanger 12 and the two connecting assemblies 18 provided on the second hanger 14 are respectively adapted to the lifting positions on the lifted workpiece (for example, the lifting holes 102 on the battery case 101 of the battery 100 shown in fig. 7). The lifting appliance 1 is lowered to a height capable of connecting the connecting component 18 with a lifting position on a lifting workpiece by using a crane, a crane and the like, and the frame body 10 is lifted and moved after the connecting component 18 is connected with the lifting position on the lifting workpiece, so that the lifting and carrying of the lifting workpiece are realized.

Thus, in the present embodiment, the first hanger 12 is connected to the frame 10 by the first adjustment assembly 16, and/or the second hanger 14 is connected to the frame 10 by the first adjustment assembly 16, and thus, the position of the first hanger 12 and/or the second hanger 14 in the first direction relative to the frame 10 may be adjusted by the first adjustment assembly 16. That is, the spacing in the first direction between the first hanger 12 and the second hanger 14 may be varied by the first adjustment assembly 16. Thereby, the relative position (including distance) between the connection members 18 can be easily matched with the hoisted workpiece, so that the hoisting of workpieces of different specifications such as battery boxes by the hoisting tool 1 can be realized without replacing the hoisting tool 1, and the operation time is saved compared with the replacement of the hoisting tool 1.

In some embodiments, as shown in fig. 3 and 4, the first adjustment assembly 16 includes a slide rail 161, a slide seat 162, a locating pin 163, and a plurality of first engagement portions 164. The slide rail 161 is provided in the frame 10. The slide block 162 is provided on the first hanger 12 or the second hanger 14 and is slidable along the slide rail 161, and a pin hole into which the positioning pin 163 is inserted is formed in the slide block 162. The plurality of first fitting portions 164 are arranged on the frame body 10, and the positioning pins 163 can be inserted into any one of the plurality of first fitting portions 164 and the pin holes.

In the specific example shown in fig. 3 and 4, the slide rail 161 is provided along the first frame member 111 in the frame 10, and is provided on the upper surface of the first frame member 111. The slide rail 161 may be continuously provided over the entire length of the first frame member 111 in the first direction, or may be intermittently provided over the entire length of the first frame member 111 in the first direction. As can be seen from fig. 1, in the embodiment of the present application, the slide rail 161 is intermittently provided to the first frame member 111 in the frame 10. Specifically, one length of the slide rail 161 is provided at each of the two ends of one first frame member 111 in the first direction in the frame 10, and no slide rail 161 is provided at a portion of the first frame member 111 located between the two lengths of the slide rail 161. The two first frame members 111 of the frame 10 have the same structure, and thus the description will not be repeated for the other first frame member 111. The length of the first slide rail 161 is set according to the length range in the first direction to be adjusted, and is not particularly limited here.

As shown in fig. 3 and 4, the slide block 162 is attached to the slide rail 161 from above, and is slidable along the slide rail 161 in the first direction. When both the slide holders 162 provided on the first hanger 12 are slidable with respect to the slide rail 161, the position of the first hanger 12 with respect to the frame body 10 in the first direction can be adjusted. Similarly, when both the slide holders 162 provided on the second hanger 14 are slidable with respect to the slide rail 161, the position of the second hanger 14 with respect to the frame body 10 in the first direction can be adjusted. The slide holder 162 is provided with a pin hole (not shown) into which the positioning pin 163 is inserted from the outside (right side in fig. 4).

The plurality of first fitting portions 164 are disposed in the housing 10, specifically, in a region of the first housing member 111 of the housing 10 corresponding to the region where the slide rail 161 is located. As shown in fig. 3, the plurality of first fitting portions 164 are disposed in a range corresponding to a region where the slide rail 161 is located, of the side surfaces of the first frame member 111 in the second direction. In this way, the slide block 162, which is capable of sliding along the slide rail 161 to change its position, can be fixed to the first frame member 111 by engagement of the positioning pin 163 with the pin hole in the slide block 162 and the first fitting portion 164.

By providing the plurality of first fitting portions 164, a plurality of fixing positions can be preset for the slide holder 162, and the first hanger 12 and the second hanger 14 can be fixed at a plurality of positions, respectively, so that the intervals between the plurality of first hangers 12 and the second hanger 14 and the relative positions in the first direction between the connection members 18 can be preset, and thus the slide holder can be applied to workpieces (for example, battery cases of batteries) of various specifications.

The outer diameter of the positioning pin 163 is not particularly limited as long as it can be inserted into the first fitting portion 164. Alternatively, in the case where a plurality of spreaders 1 are provided in the production line, it may be set such that the outer diameter size of the positioning pin 163 is smaller than the inner diameter size of the pin hole of all spreaders 1 or the inner diameter size of the pin hole is larger than the outer diameter size of the positioning pin 163 used for all spreaders 1, whereby the versatility of the positioning pin 163 among the plurality of spreaders 1 can be achieved, and the compatibility of the positioning pin 163 can be achieved.

Since the slide holder 162 is freely slidable on the slide rail 161, the first hanger 12 or the second hanger 14 connected to the slide holder 162 changes position according to the sliding of the slide holder 162, and thus the positions of the first hanger 12 and the second hanger 14 with respect to the frame body 10 can be easily changed with a simple structure by the cooperation of the slide rail 161 and the slide holder 162. The plurality of first engaging portions 164 are disposed on the frame body 10, and the slide holder 162 is provided with pin holes, so that the positioning pins 163 can be inserted into the pin holes and the first engaging portions 164, thereby fixing the positions of the slide holder 162 and fixing the positions of the first hanger 12 and the second hanger 14 with respect to the frame body 10 with a simple structure. Since the positioning and fixing are performed by the engagement of the positioning pin 163 with the pin hole and the first fitting portion 164, the insertion and extraction are convenient and quick, and thus the relative position and distance between the connection members 18 of the spreader 1 can be quickly adjusted.

In some embodiments, as shown in fig. 1 and 3, a plurality of first engaging portions 164 are provided on the frame body 10 along the extending direction of the sliding rail 161, and the first engaging portions 164 are spaced apart from each other.

As shown in fig. 1, the embodiment of the present application shows that the lifting appliance 1 has the first adjusting assemblies 16 at 4 positions, and the structures of the first adjusting assemblies 16 are identical, wherein the first engaging portions 164 provided on the frame body 10 are also identical, and thus, the first adjusting assembly 16 at one position shown in fig. 3 is taken as an example for explanation. Of course, the first adjustment assembly 16 may not be exactly the same structure throughout.

In fig. 3, the plurality of first fitting portions 164 are arranged on the first frame member 111 along the extending direction (i.e., the first direction) of the slide rail 161. The first fitting portions 164 are provided at intervals not exceeding the extension length range of the slide rail 161. Here, the intervals may be uniformly spaced, or the intervals may not be exactly the same, and may be specifically set according to the change in the specification of the hoisting workpiece to be hoisted.

Alternatively, the first fitting portion 164 may be implemented by providing a plurality of recessed portions in the first frame member 111 of the frame 10. In this case, after the positioning pin 163 is inserted into the pin hole and the recess, the slide block 162 is locked to the first frame member 111 of the frame 10, and cannot move.

Also alternatively, the first fitting portion 164 includes a through hole penetrating the frame body 10. Specifically, the first fitting portion 164 formed of a through hole penetrates the first frame member 111 of the frame 10 in the second direction. After the positioning pin 163 is inserted into the lock hole and the through hole, the slide block 162 is locked to the first frame member 111 of the frame 10, and cannot be moved.

The positioning pin 163 may be a cylindrical pin, or may be a pin of another shape, and the shape thereof is not particularly limited as long as it can be inserted into the pin hole and the respective first fitting portions 164. The positioning pin 163 may have a flange portion having a larger outer diameter at one end portion thereof for the operator to grip. The positioning pin 163 may have a screw structure on the surface, and when the positioning pin 163 sequentially passes through the slide seat 162 and the first fitting portion 164 formed of a through hole and then the end portion is exposed, screw fastening may be performed by connecting a nut to an external screw on the surface of the end portion. In the example shown in fig. 3 and 4, the positioning pin 163 is inserted into the slide block 162 and the first fitting portion 164 in order from the outside (right side in fig. 4) of the frame body 10, but the positioning pin 163 may be inserted into the first fitting portion 164 and the slide block 162 in order from the inside (left side in fig. 4 of the first frame body member 111) of the frame body 10.

As described above, since the plurality of first fitting portions 164 are provided, the adjacent first fitting portions 164 are spaced apart from each other, the first hanger 12 and the second hanger 14 have a large adjustment range, and the position where the positioning pin 163 should be inserted can be quickly selected, so that adjustment of the spreader 1 is simple. In addition, since the positions of the first hanger 12 and the second hanger 14 can be fixed to the frame body 10 by inserting the long positioning pins 163 through the pin holes and the through holes, the operation is simple and time-saving. In addition, the sliding seat 162 of the first hanger 12 and the sliding seat 162 of the second hanger 14 can be fastened to the frame body 10 by matching the nuts with the threads on the positioning pins 163, so that the risk of unexpected sliding and the safety risk caused by unexpected falling of the positioning pins 163 can be avoided.

In some embodiments, as shown in fig. 4, the sliding seat 162 includes a first connection piece 165 connected to the first hanger 12 or the second hanger 14, a slide rail engaging portion 167 provided to the first connection piece 165, and a second connection piece 166 provided to connect to the first connection piece 165. The rail engaging portion 167 is engaged with the rail 161 and is slidable along the rail 161, and at least one pin hole is provided in the second connecting piece 166.

In the example shown in fig. 4, the first connecting piece 165 and the second connecting piece 166 are connected in a substantially right angle manner to form a unitary structure, and the first connecting piece 165 is mounted to the lower surface of the first hanger 12. Optionally, first connecting tab 165 is mounted to the lower surface of first hanger 12 by mounting washer 168. A rail engaging portion 167 for engaging with the rail 161 and capable of sliding along the rail 161 is attached to a lower surface (a surface facing the first frame member 111 side of the frame 10) of the first connecting piece 165. In addition, the positioning pin 163 may penetrate a pin hole (not shown) provided in the second connecting piece 166.

Since the first link 165 is provided with the rail engaging portion 167, the first link 165 is slidable on the rail 161, and the first link 165 is connected to the first hanger 12 or the second hanger 14, the first link 165 slides to drive the first hanger 12 or the second hanger 14 to slide, so that the position of the first hanger 12 or the second hanger 14 with respect to the frame body 10 can be easily changed based on a simple structure. The first connecting piece 165 is further connected to the second connecting piece 166, a pin hole is formed in the second connecting piece 166, and a positioning pin 163 is inserted into the pin hole and the first fitting portion 164 to fix the position of the second connecting piece 166 together with the first hanger 12 or the second hanger 14 with respect to the frame body 10. In addition, since the first connecting piece 165 is provided in connection with the second connecting piece 166, it can be handled as one member, the number of members is reduced, and the mounting is easy.

In some embodiments, as shown in fig. 1 and 5, the adjustment assembly further includes a second adjustment assembly 20. The second adjustment assembly 20 is used to adjust the relative position of the connection assemblies 18 with respect to each other in the second direction. At least one of the connection assemblies 18 provided to the first hanger 12 is connected to the first hanger 12 by a second adjustment assembly 20 and/or at least one of the connection assemblies 18 provided to the second hanger 14 is connected to the second hanger 14 by a second adjustment assembly 20.

In the example shown in fig. 1, the first hanger 12 is connected to one connection assembly 18 at each end, and the two connection assemblies 18 are connected to the first hanger 12 through the second adjustment assemblies 20, respectively. Similarly, the second hanger 14 is also connected at both ends to one connection assembly 18, and the two connection assemblies 18 are connected to the second hanger 14 through the second adjustment assemblies 20, respectively. That is, in the example shown in fig. 1, 4 connection assemblies 18 are connected in total, and 4 second adjustment assemblies 20 are provided for each connection assembly 18 in total. In this example, by means of the second adjustment assembly 20 at 4, the relative position of the two connection assemblies 18 connected to the first hanger 12 with respect to each other, the relative position of the two connection assemblies 18 connected to the second hanger 14 with respect to each other, and the relative position in the second direction between the connection assemblies 18 connected to the first hanger 12 and the connection assemblies 18 connected to the second hanger 14 can be adjusted.

Since the second adjusting assembly 20 can adjust the relative positions of the connecting assemblies 18 in the second direction with respect to each other, compatibility with respect to the hoisting workpieces of different specifications can be further improved.

In some embodiments of the present application, as shown in fig. 1, a first hanger 12 and a second hanger 14 are connected to the frame 10 by a first adjustment assembly 16, respectively; one connection assembly 18 is connected to each of the two ends of the first hanger 12 and the two ends of the second hanger 14 via a second adjustment assembly 20.

Since both the first adjusting assembly 16 and the second adjusting assembly 20 are provided for the first hanger 12 and the second hanger 14, the relative positions of the connecting assemblies 18 can be adjusted in both the first direction and the second direction, the adjustable range of the connecting assemblies 18 is increased, and the compatible range of the hoisting workpieces with different specifications is further improved.

In some embodiments, as shown in fig. 5, the second adjustment assembly 20 includes a fixture 201, a bolt 202, and a plurality of second engagement portions 203. The fixing member 201 is provided with bolt holes into which the bolts 202 are inserted, and the plurality of second fitting portions 203 are arranged on the first hanger 12 or the second hanger 14, so that the bolts 202 can be inserted into any one of the plurality of second fitting portions 203 and the bolt holes. The connection assembly 18 is connected to the fixing member 201.

Referring to fig. 5, a structure in which the second hanger 14 is connected to one of the connection members 18 through the second adjustment member 20 will be described in detail.

The structure in which the second hanger 14 is connected to the additional connection member 18 through the second adjustment member 20, and the structure in which the first hanger 12 is connected to the connection member 18 through the second adjustment member 20 may be the same as that of this example. As shown in fig. 5, the second adjusting assembly 20 comprises, for example, two plate-shaped fixing members 201, the two fixing members 201 being connected at one end by a connecting pin 204 and at the other end by a bolt 202 to the second hanger 14. The connection unit 18 is connected to the second hanger 14 by, for example, connecting the strap 22 (described in detail later) to the connection pin 204 to connect the two fixtures 201 together. Here, the two fixing members 201 are separate members, and may be formed as an integral member with one end connected.

The plurality of second fitting portions 203 are disposed in the second hanger 14, specifically, in an end region of the second hanger 14 that protrudes outward from the frame body 10 (for example, in fig. 2, a portion above and a portion below the frame body 10 in the first hanger 12 and the second hanger 14). The length in the second direction of the region where the plurality of second fitting portions 203 are arranged may be set according to the adjustable range in the second direction required for the connection assembly 18. Specifically, this can be achieved by setting the number of the second fitting portions 203, the pitches between the plurality of second fitting portions 203, and the like.

In this way, after the bolts 202 are sequentially inserted into the bolt holes of the fixing piece 201 located at one side of the second hanger 14, one of the plurality of second fitting portions 203 provided to the second hanger 14, and the bolt holes of the fixing piece 201 located at the other side of the second hanger 14, the connection assembly 18 is connected to the second hanger 14 and the connection position with the second hanger 14 is fixed. After the bolts 202 are pulled out from the bolt holes of the fixing members 201 and the second fitting portions 203 located on both sides of the second hanger 14, the connection relation of the connection member 18 and the second hanger 14 is released, the movable fixing member 201 with the connection member 18 connected thereto is changed to another one of the plurality of second fitting portions 203, the connection position of the connection member 18 on the second hanger 14 is changed, and the bolts 202 are inserted again to fix the connection position.

Alternatively, a nut may be sleeved on the end of the bolt 202 away from the head of the bolt, and the fixing member 201 may be prevented from falling off by the cooperation of the nut and the bolt 202, and the fixing member 201 may be fastened to the second hanger 14, so as to prevent the fixing member 201 from rotating accidentally relative to the second hanger 14. Of course, the fixing member 201 may be allowed to rotate with respect to the second hanger 14.

The above-described structure may be similarly provided at the other end of the second hanger 14 and the first hanger 12. Thus, the bolt 202 is inserted into the second fitting portion 203 and the bolt hole formed in the fixing member 201, and the connection block 18 is connected to the fixing member 201, so that the position of the connection block 18 with respect to the first hanger 12 or the second hanger 14 can be fixed. The bolt 202 is pulled out, the bolt hole on the fixing member 201 is aligned with the second fitting portion 203 at an arbitrary position, and the bolt 202 is inserted again, so that the connection position of the connection assembly 18 relative to the first hanger 12 or the second hanger 14, that is, the relative positions of the connection assemblies 18, can be easily adjusted, and the hoisting of the hoisting workpieces of different specifications can be quickly adapted.

In some embodiments, as shown in fig. 1, 5 to 7, the plurality of second fitting portions 203 are provided at intervals to the first hanger 12 or the second hanger 14.

Specifically, a plurality of second fitting portions 203 spaced apart from each other may be provided at least one of the two end portions of the first hanger 12, and a plurality of second fitting portions 203 spaced apart from each other may be provided at least one of the two end portions of the second hanger 14. The intervals between the second fitting portions 203 may be the same or different.

In some embodiments, as shown in fig. 2 and 5, the second fitting portion 203 includes a through hole.

As described above, since the second fitting portions 203 are provided in plurality and the adjacent second fitting portions 203 are spaced apart from each other, the adjustment range of the connection assembly 18 on the first hanger 12 or the second hanger 14 is wide, and the position where the bolt 202 should be inserted can be quickly selected, so that the adjustment of the spreader 1 is simple.

Further, since the second fitting portion 203 is a through hole penetrating the first hanger 12 or the second hanger 14 in the first direction, the fixing member 201 can be fixed to the second fitting portion 203 by inserting the long bolt 202 into the bolt hole and the through hole, and the position of the connection unit 18 with respect to the first hanger 12 or the second hanger 14 can be easily fixed. In addition, the fixing piece 201 can be fastened to the first hanger 12 or the second hanger 14 through the cooperation of the nuts and the threads on the bolts 202, so that the risk of unexpected falling off of the bolts 202, the connecting assembly 18 and even the hanging workpiece, and the safety risk caused by the risk, and the like are avoided.

In the above-described embodiment, the fixing member 201 of the second adjusting unit 20 is suspended downward in a state of being attached to the first hanger 12 or the second hanger 14 as shown in fig. 5 to 7, but the second adjusting unit 20 of the embodiment of the present application is not limited to this configuration, and may be formed in a substantially inverted U-shape and may be disposed astride the first hanger 12 or the second hanger 14 from above.

In some embodiments, as shown in fig. 5-8, the connection assembly 18 is connected to the mount 201 by a strap 22.

The structure of the connection assembly 18 will be described with reference to fig. 8. The configuration of the connection assembly 18 is exemplary only, and other suitable configurations for the connection assembly 18 are possible.

As shown in fig. 8, the connection assembly 18 includes a work connection hook 181 and a latch 183 inserted into the work connection hook 181. In a state where the work connection hook 181 is overlapped with the plate surface of the hoist work provided with the hoist hole 102 (see fig. 7), the latch 183 is sequentially inserted into the hole on the upper side in the work connection hook 181, the hoist hole 102 (see fig. 7) and the hole on the lower side in the work connection hook 181, and both the work connection hooks 181 can be connected with the hoist work. The latch 183 is, for example, in the shape of a bolt, and the head of the latch 183 is larger than the aperture (diameter) of the upper hole in the work attachment hook 181, so that the latch 183 does not fall through the hole. In addition, a latch handle 182 is connected to the head of the latch 183, and is adapted to be held by an operator when the latch 183 is inserted and removed. Alternatively, the latch handle 182 is provided to be long in the up-down direction, so that the operator can operate it conveniently.

Further, a connection plate 184 is connected to the work connection hook 181, and as shown in fig. 5, the connection plate 184 has a substantially inverted U-shape. A connecting buckle 185 is connected to the connecting plate 184. A connecting buckle 185 is used to connect with the webbing 22. The connecting buckle 185 may be one annular member or a plurality of annular members connected in sequence.

The strap 22 has a closed loop configuration that is sleeved over the connecting pin 204 of the securing member 201 and connected to the connecting buckle 185, thereby connecting the securing member 201 to the connecting assembly 18. The band 22 may be integrally formed as a closed loop structure or may have a closed loop structure at each end as shown in fig. 8, with the two closed loop structures being connected by a flat band therebetween.

Because the connecting component 18 is connected to the fixing piece 201 through the strip-shaped piece 22 with a certain length, a larger hoisting space can be provided for hoisting the workpiece, interference between the hoisting workpiece and the frame body 10 and the like is avoided, the connecting component 18 can be designed to be small, and the self weight of the lifting appliance 1 is reduced. And the position of the connecting component 18 can be flexibly changed when the connecting component 18 is connected with the hoisting workpiece, so that the lifting appliance 1 can be quickly connected.

In some embodiments, as shown in fig. 6 and 7, the hanger 1 further includes a hanger rope 24 for making the frame body 10 and the first hanger 12 and the second hanger 14 in a suspended state, the hanger rope 24 being connected to the first hanger 12 and the second hanger 14, and/or the hanger rope 24 being connected to the frame body 10.

Optionally, at least one of the first hanger 12, the second hanger 14 and the frame body 10 is provided with a hook or a sling for lifting the hanger 1 by the hook of the hanger sling 24.

Optionally, at least one of the first hanger 12, the second hanger 14 and the frame body 10 is provided with a pin for hooking, and the hanger hoist rope 24 has a hook or a hoist ring hooked to the pin.

Thereby, the whole spreader 1 can be suspended in a suitable position by means of the spreader hoist rope 24 connected to a crane, hoist or the like.

In some embodiments, as shown in fig. 6 and 7, the spreader 1 further comprises a weight 26 for weighing the hoisted workpiece.

Optionally, the weight 26 is arranged between the hook of a lifting device of a crane, hoist or the like and the spreader 1, for example between the hook of the lifting device and the spreader hoist rope 24. The lifting rope 24 is connected with the weight meter 26 through the lifting ring 23. The weighing machine 26 may be, for example, an electronic scale.

Thus, by adding the weighing machine 26 to the hanger 1, the weight of the lifted workpiece can be weighed while being lifted, no additional weighing is required, and the working time and the working steps are saved. Moreover, whether the lifted workpiece meets the related weight requirement can be judged through the measured weight. Since the weight scale 26 is connected to the hoist rope 24, the weight scale 26 is lifted by a crane, a hoist, or the like, and the weight scale 26 lifts the frame body 10, the first hoist frame 12, the second hoist frame 14, or the like, of the hoist 1 and the work by the hoist rope 24, so that the weight of the work can be weighed while the work is lifted, and only one weight scale 26 needs to be provided.

Further, as shown in fig. 9, the weight meter 26 may include a transmitting means 27 for transmitting information about the weighed weight. For example, the sending device 27 may send the weighed weight to the controller 200, and the controller 200 determines whether the weight meets the relevant weight requirement, and if so, sends a signal for allowing the hoisted workpiece to be carried to other positions, for example, sends a signal for allowing the hoisted workpiece to be taken off the line from the production line; if the lifting work piece is not in accordance with the requirements, an alarm is sent out, or a signal for conveying the lifting work piece to a station of a defective product is sent out. The transmitter 27 may directly transmit a signal indicating whether the weight is acceptable or unacceptable, and the controller 200 may perform a corresponding process based on the signal.

Thus, the subsequent processing can be performed based on the information about the weighed weight sent by the weighing machine 26.

In some embodiments, as shown in fig. 1, 2, 6, and 7, the frame 10 includes a handle 28.

The handle 28 may be provided in plural, for example, 4 handles 28 are provided in the example shown in fig. 1, 2, 6, 7. A handle 28 is provided on the surface of the frame body 10 facing the outside.

Therefore, a user of the lifting appliance 1 can hold the handle 28 to control the lifting appliance 1 to be in the air, and can also pull the handle 28 to adjust the relative position relationship between the frame body 10, the first lifting frame 12 and the second lifting frame 14, so that the lifting appliance 1 is convenient to operate.

The embodiment of the application also provides a battery production line. The battery production line comprises at least one spreader 1 of the presently filed embodiment of the first aspect and a pallet 301 located below the frame body 10 and at a preset position between the first hanger 12 and the second hanger 14. The hoisting work piece includes the battery box 101, and the connection assembly 18 of the hoist is connected to the hoisting position of the battery box 101 and places the battery box 101 on the tray 301 or removes the battery box 101 from the tray 301.

The lifting appliance 1 can be used for lifting various workpieces in a battery production line. The connection assembly 18 in the spreader 1 may be directly connected to a workpiece in battery production (e.g. a battery box for housing a battery) or may be lifted via an intermediate (e.g. a tray 301). In case of a change in the specifications of the hoisting work piece, the hoisting position for connection with the connection assembly 18, etc., the relative position of the connection assembly 18 can be adjusted by means of the first adjustment assembly 16, the second adjustment assembly 20, etc. in the spreader 1 in order to adapt to the target hoisting work piece.

In addition, 1 spreader 1 may be disposed at the lifting station 300, or 2 or more spreaders 1 may be disposed. Fig. 10 is a schematic illustration of a lifting station provided in some embodiments of the present application. In the example shown in fig. 10, 4 spreaders 1 are arranged at the hoisting station 300.

The pallet 301 may be transported by a logistics line or automated guided vehicle (Automated Guided Vehicle, AGV for short) to a preset position below the frame 10 between the first hanger 12 and the second hanger 14. The battery box 101 can be transported to the position below the lifting station 300 through the tray 301, the battery box 101 on the tray is lifted through the lifting appliance 1, and the battery box 101 is moved to a processing line by driving the lifting appliance 1 through a crane. Also alternatively, the lifting appliance 1 drives the battery box 101 to move to the lifting station 300, and the battery box 101 is placed on the tray 301 to realize feeding. The lifting appliance 1 can drive the battery box body 101 to be close to the tray 301 so as to place the battery box body 101 on the tray 301, thereby realizing feeding; the lifting appliance 1 can also be far away from the tray 301 to lift the battery box 101 for transferring. The moving requirement of the battery box body 101 on the production line flow is met, and the tray 301 drives the battery box body 101 to carry out subsequent assembly processing.

Because the lifting appliance 1 is arranged in the battery production line, the lifting appliance 1 can adapt to lifting workpieces with various specifications in the battery production line without replacement, and the flexibility of the battery production line is improved.

As shown in fig. 7, the hoisting work includes a battery case 101. Here, the battery case 101 includes a case in which a battery is housed, a case in which a battery is not housed, and the like. As a specific example, as shown in fig. 7, a battery case 101 is a case in which a plurality of battery cells are housed to form a battery 100. These battery housings may be identical or different housings, where the same or different include the same or different specifications and sizes of the housings, and the same or different hoisting locations on the housings for connection of the connection assemblies 18.

Under the condition that the battery box body 101 is used for producing batteries with various specifications in a battery production line, the lifting appliance 1 is not required to be replaced in a lifting link, and the lifting appliance 1 is only required to be adjusted to adapt to the produced batteries 100 with different specifications, so that the flexibility of the battery production line is improved, the operation is simple and convenient, the downtime can be reduced, and the production efficiency of the battery production line is improved.

Next, a method for using the lifting appliance according to the embodiment of the present application will be described with reference to the accompanying drawings.

Fig. 11 is a flow chart of a method of using a spreader according to some embodiments of the present application; FIG. 12 is one of the flow charts of the adjustment steps in the method of use of the spreader provided in some embodiments of the present application; fig. 13 is a second flow chart of the adjusting step in the method for using the lifting appliance according to some embodiments of the present application.

In addition, the application also provides a using method of the lifting appliance, the lifting appliance 1 comprises a frame body 10, a first lifting frame 12, a second lifting frame 14, an adjusting assembly and a connecting assembly 18, the first lifting frame 12 and the second lifting frame 14 are erected on the frame body 10 at intervals in a first direction, the first lifting frame 12 and the second lifting frame 14 respectively extend along a second direction crossing the first direction, at least one connecting assembly 18 is respectively arranged at two ends of the first lifting frame 12 in the second direction and two ends of the second lifting frame 14 in the second direction, the connecting assembly 18 is used for being connected with a lifting workpiece, the adjusting assembly comprises a first adjusting assembly 16 and a second adjusting assembly 20, at least one of the first lifting frame 12 and the second lifting frame 14 is connected with the frame body 10 through the first adjusting assembly 16, the first adjusting assembly 16 is used for adjusting the distance between the first lifting frame 12 and the second lifting frame 14 along the first direction, at least one of the first lifting frame 12 and the second lifting frame 14 is provided with the second adjusting assembly 20, and the second adjusting assembly 20 is used for adjusting the position of the connecting assembly 18 along the second direction relative to each other.

As shown in fig. 11, the method for using the hanger includes:

s100: and an adjusting step, wherein the relative positions of the connecting components are adjusted through the first adjusting component and/or the second adjusting component.

In embodiments of the present application, the first adjustment assembly 16 and/or the second adjustment assembly 20 may be manually utilized by an operator to adjust the relative position of the connection assemblies 18 to one another. Of course, a driving device such as a motor may be additionally provided to perform electric adjustment. As one example, the first hanger 12, the second hanger 14 may be driven to move on the frame body 10 in the first direction by a motor.

Since the distance between the connection assemblies 18 for connection with the lifting workpiece in the first direction can be adjusted by the first adjustment assembly 16 and the distance between the connection assemblies 18 for connection with the lifting workpiece in the second direction can be adjusted by the second adjustment assembly 20, when the specification of the lifting workpiece or the like is changed and the position of the connection assemblies 18 for connection with the lifting workpiece needs to be adjusted, the adjustment of the lifting appliance 1 can be quickly performed by the first adjustment assembly 16 and the second adjustment assembly 20, so that the lifting requirements of workpieces of different specifications can be satisfied by simple operation.

In some embodiments, the first adjusting assembly 16 includes a sliding rail 161 provided on the frame 10, a sliding seat 162 provided on the first hanger 12 or the second hanger 14, a positioning pin 163 capable of being inserted into a pin hole formed in the sliding seat 162, and a plurality of first engaging portions 164 disposed on the frame 10.

As shown in fig. 12, the adjusting step S100 may include the following steps.

S1001: releasing the insertion state of the positioning pin in the first adjusting assembly connected with the first hanging bracket or the second hanging bracket and the first embedded part positioned at the first position in the first embedded parts;

s1002: moving the first hanger or the second hanger connected to the first adjusting member in which the inserted state is released, relative to the frame body in the first direction until the pin hole on the sliding seat on the moved first hanger or second hanger is aligned with the first fitting portion located at the second position among the plurality of first fitting portions;

s1003: the positioning pin is inserted into the aligned pin hole and the first fitting portion is positioned at the second position.

Thus, by the insertion and extraction operations of the positioning pins 163 and the moving operations of the first hanger 12 and/or the second hanger 14 with respect to the frame body 10, the adjustment of the relative position of the connection assembly 18 in the hanger 1 can be realized to adapt to the hanging workpieces of different specifications. The operation is simple and time-saving, and the flexibility and the operation efficiency of the hoisting link and even the whole production line are improved.

In some embodiments, at least one of the connection assemblies 18 provided to the first hanger 12 is connected to the first hanger 12 by a second adjustment assembly 20, and/or at least one of the connection assemblies 18 provided to the second hanger 14 is connected to the second hanger 14 by a second adjustment assembly 20, the second adjustment assembly 20 including a fixture 201, a bolt 202, and a plurality of second engagement portions 203; the fixing member 201 is provided with a bolt hole into which the bolt 202 is inserted, a plurality of second fitting portions 203 are arranged on the first hanger 12 or the second hanger 14, the bolt 202 can be inserted into one of the plurality of second fitting portions 203 and the bolt hole, and the connection unit 18 is connected to the fixing member 201.

As shown in fig. 13, the adjusting step S100 may include the following steps.

S1004: releasing the state of insertion of the bolt in the second adjusting assembly connected with the first hanger or the second hanger and the second fitting part located at the third position in the plurality of second fitting parts;

s1005: moving the connection assembly connected to the second adjustment assembly, which is released from the inserted state, in a second direction with respect to the first hanger or the second hanger until the bolt hole on the fixing member to which the moved connection assembly is connected is aligned with a second fitting portion located at a fourth position among the plurality of second fitting portions;

S1006: the bolt is inserted into the aligned bolt hole and the second fitting portion is positioned at the fourth position.

The adjustment step may include all or some of the above steps, and may include, for example, only step S1001, step S1002, step S1003, or only step S1004, step S1005, step S1006, or may include step S1001, step S1002, step S1003, step S1004, step S1005, and step S1006.

Therefore, the relative positions between the connecting assemblies 18 can be adjusted through the second adjusting assemblies 20, and the flexibility and the operation efficiency of the hoisting link and even the whole production line are further improved.

Next, specific examples of embodiments of the present application will be described. The battery production line is described as an example.

4 spreaders 1 are arranged at the hoisting station 300 to meet the high beat requirement of the battery production line. And when the produced batteries are different in specification, performing switching and pulling type conversion. In this case, the first adjusting assembly 16 may be adjusted to adjust the positions of the first hanger 12 and the second hanger 14 with respect to the frame body 10 according to the battery case 101 of the different batteries 100 to be hoisted, and in addition, the second adjusting assembly 20 is adjusted, thereby achieving that the latch 183 of the connecting assembly 18 corresponds to a hoisting position (e.g., the hoist hole 102) in the battery case 101.

Then, after the latch handle 182 is pulled to vertically lift the latch 183, the hole on the work coupling hook 181 of the coupling assembly 18 is aligned with the hoist hole 102 and the latch 183 is inserted.

Next, the hanger 1 is moved to the position of the material rack of the battery box 101 by the handle 28. During the process of moving the lifting appliance 1 and the lifted battery box 101, the weight meter 26 (e.g., an electronic scale) automatically weighs the battery box 101, and determines whether the weight is acceptable through the controller 200. And if the weight is qualified, automatically uploading the weight to a management system. Thereby completing the entire lifting action.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the present application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A lifting appliance is characterized by comprising a frame body, a first lifting frame, a second lifting frame, an adjusting component, a connecting component and a weight counter,

the first hanging bracket and the second hanging bracket are erected on the frame body at intervals in a first direction, and extend along a second direction crossing the first direction respectively,

at least one connecting component is respectively arranged at two ends of the first hanging bracket in the second direction and two ends of the second hanging bracket in the second direction, the connecting component is used for connecting with a hanging workpiece,

the adjustment assembly includes a first adjustment assembly and a second adjustment assembly,

the first hanging bracket and the second hanging bracket are respectively connected with the bracket body through the first adjusting component, the first adjusting component is used for adjusting the distance between the first hanging bracket and the second hanging bracket along the first direction,

at least one of the first hanger and the second hanger is provided with the second adjusting assembly for adjusting the relative position of the connecting assemblies to each other in the second direction;

at least one of the connection assemblies provided to the first hanger is connected to the first hanger through the second adjustment assembly, and at least one of the connection assemblies provided to the second hanger is connected to the second hanger through the second adjustment assembly;

The first adjusting component comprises a sliding rail, a sliding seat, a positioning pin and a plurality of first embedded parts,

the sliding rail is arranged on the frame body,

the sliding seat is arranged on the first hanging bracket or the second hanging bracket and can slide along the sliding rail, the sliding seat is provided with a pin hole for inserting the positioning pin,

the plurality of first fitting portions are arranged on the frame body, and the positioning pin can be inserted into any one of the plurality of first fitting portions and the pin hole;

the sliding seat comprises a first connecting piece connected with the first hanging bracket or the second hanging bracket, a sliding rail clamping part arranged on the first connecting piece and a second connecting piece connected with the first connecting piece,

the sliding rail clamping part is clamped on the sliding rail and can slide along the sliding rail,

at least one pin hole is arranged on the second connecting sheet;

the second adjusting component comprises a fixing piece, a bolt and a plurality of second embedded parts,

the fixing piece is provided with a bolt hole for inserting the bolt, a plurality of second embedded parts are arranged on the first hanging bracket or the second hanging bracket, the bolt can be inserted into any one of the second embedded parts and the bolt hole, and the connecting component is connected with the fixing piece;

The connecting component comprises a workpiece connecting hook and a bolt inserted into the workpiece connecting hook;

sequentially inserting the bolt into a hole on the upper side of the workpiece connecting hook, a lifting hole arranged on the lifting workpiece and a hole on the lower side of the workpiece connecting hook, and connecting the workpiece connecting hook with the lifting workpiece;

the frame body is connected with the weighing device for weighing the lifting workpiece through the lifting rope, and the frame body, the first lifting frame and the second lifting frame are all in a hanging state through the lifting rope.

2. The spreader of claim 1, wherein the spreader comprises a frame,

the plurality of first jogged parts are arranged on the frame body along the extending direction of the sliding rail, and the first jogged parts are separated from each other at intervals.

3. The spreader of claim 1, wherein the spreader comprises a frame,

the first fitting portion includes a through hole penetrating the frame body.

4. The spreader of claim 1, wherein the spreader comprises a frame,

the plurality of second fitting portions are provided to the first hanger or the second hanger at a distance from each other.

5. The spreader of claim 1, wherein the spreader comprises a frame,

the second fitting portion includes a through hole.

6. The spreader of claim 1, wherein the spreader comprises a frame,

the connecting assembly is connected to the fixing member by a belt member.

7. The spreader of claim 1, wherein the spreader comprises a frame,

the weight meter comprises transmitting means for transmitting information about the measured weight.

8. The spreader of claim 1, wherein the frame comprises a handle.

9. A method of using a spreader according to any one of claims 1 to 8, comprising:

and an adjusting step, wherein the relative positions of the connecting components are adjusted through the first adjusting component and/or the second adjusting component.

10. The method of using a spreader according to claim 9, wherein the adjusting step comprises:

releasing the insertion state of the positioning pin in the first adjustment assembly connected to the first hanger or the second hanger and the first fitting part located at the first position among the plurality of first fitting parts;

moving the first hanger or the second hanger connected to the first adjustment assembly, which is released from the inserted state, relative to the frame body in a first direction until the pin hole on the sliding seat on the moved first hanger or the second hanger is aligned with the first fitting portion at a second position among the plurality of first fitting portions;

The positioning pin is inserted into the aligned pin hole and the first fitting portion at the second position.

11. The method of using a spreader according to claim 9 or 10, wherein the adjusting step comprises:

releasing the state of insertion of the bolt in the second adjustment assembly connected to the first hanger or the second hanger and the second fitting part located at the third position among the plurality of second fitting parts;

moving the connection assembly connected to the second adjustment assembly, which is released from the inserted state, in a second direction with respect to the first hanger or the second hanger until the bolt hole on the fixing member to which the moved connection assembly is connected is aligned with a second fitting portion located at a fourth position among the plurality of second fitting portions;

the bolt is inserted into the aligned bolt hole and the second fitting portion at the fourth position.

12. A battery production line, comprising:

at least one spreader according to any one of claims 1 to 8; and

a tray which is positioned below the frame body and at a preset position between the first hanging bracket and the second hanging bracket,

The hoisting workpiece comprises a battery box body, and the connecting component of the hoisting tool is connected to the hoisting position of the battery box body and used for placing the battery box body on the tray or removing the battery box body from the tray.