CN215924158U - Hoisting mechanism for battery pack - Google Patents

Abstract

The utility model discloses a hoisting mechanism applied to a battery pack, wherein clamping parts protruding outwards are arranged on two opposite sides of the battery pack, and clamping holes are formed in the clamping parts; hoisting machine constructs including frame, a pair of guide arm and three clamping jaw mechanism at least: the guide rods are movably connected to the machine frame in parallel; at least three clamping jaw mechanism sets up respectively on the guide arm of difference and along the length slidable connection of guide bar in the guide arm, and clamping jaw mechanism is used for cooperating the centre gripping hole in order to snatch the clamping part. The distance between the clamping jaw mechanisms can be adjusted, and the clamping jaw mechanisms can be movably connected to the rack, so that the battery packs with different widths or lengths can be grabbed, and the adaptability is strong.

Description

Hoisting mechanism for battery pack

Technical Field

The utility model relates to the field of assembly of secondary battery packs, in particular to a hoisting mechanism for a battery pack.

Background

In the secondary battery manufacturing industry, the box body of the battery pack occupies a large space and has a large self weight, and a manual carrying method is not practical, so that different hoisting mechanisms are developed to carry the upper line of the box body of the battery pack. The traditional hoisting mechanism is generally designed into a structure for grabbing enveloping characteristic points of the appearance of the battery pack to ensure the accuracy and stability of hoisting, and is positioned and locked X, Y, Z shafts in three directions, the limiting in the three directions is limited by a plurality of limiting blocks, the contact area between the limiting mechanism and the battery pack box body is large, the structure is complex, the battery pack box body is easily scratched and the hoisting mechanism is worn in the hoisting process, the hoisting mechanism cannot be reused after the battery pack box body is worn, and the cost is greatly wasted; meanwhile, the limit block is only designed for one product, so that the compatibility is poor, and the value-added modification cost of later-stage projects is high. On the other hand, the traditional hoisting mechanism does not consider the hoisting safety and fool-proofing, and accidents are easily caused if manual operation fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hoisting mechanism for a battery pack, which aims to solve the problems in the prior art.

In order to solve the above problems, according to one aspect of the present invention, there is provided a hoisting mechanism, which is applied to grabbing a battery pack, wherein two opposite sides of the battery pack are provided with clamping portions protruding outwards, the clamping portions are provided with clamping holes, and the hoisting mechanism can grab the battery pack through the clamping holes. The hoisting mechanism comprises a frame, a pair of guide rods and at least three clamping jaw mechanisms. The guide rods are movably connected to the frame in parallel; at least three clamping jaw mechanisms, at least three clamping jaw mechanisms set up respectively in the difference on the guide arm and along the length of guide bar slidable connection in the guide arm, just clamping jaw mechanism is used for cooperating the centre gripping hole snatchs the clamping part.

In one embodiment, the clamping jaw mechanism comprises a connecting part, the connecting part is provided with a mounting hole, and the guide rod is arranged in the mounting hole in a penetrating mode, so that the connecting part can slide along the guide rod.

In one embodiment, the connecting portion is provided with a threaded hole penetrating from the outside of the connecting portion to the mounting hole, and the clamping jaw mechanism further comprises a bolt, wherein the bolt can penetrate through the threaded hole and abut against the guide rod, so that the clamping jaw mechanism is fixed to the guide rod.

In one embodiment, the hoisting mechanism further comprises a pair of split rings, and the split rings are respectively arranged on the guide rods on two sides of each clamping jaw mechanism. The inner circumference of the split ring is smaller than or equal to the circumference of the guide rod, and the two ends of the split ring are provided with tightening pieces which can enable the two ends of the split ring to be close to or far away from each other;

in the closed position, the constriction may secure the split ring to the guide rod;

in the remote state, the split ring is slidable along the guide bar.

In one embodiment, the two ends of the split ring are provided with through threaded holes which are opened towards the end face of the split ring and are aligned with each other, and the tightening piece is a screw rod.

In one embodiment, the jaw mechanism further comprises:

a pin seat connected to the connection part, the pin seat being provided with two extensions extending toward the other guide bar and spaced apart from each other, the two extensions being provided with pin holes aligned with each other;

and the bolt can be inserted into the bolt hole.

In one embodiment, the bolt is a hollow tube, and the side wall of the bolt is provided with fool-proof holes with opposite diameters;

a pair of balls are arranged in the hollow pipe, the diameter of each ball is larger than the inner diameter of the foolproof hole, and the balls are respectively arranged in the foolproof holes;

a spring positioned between the pair of balls and having both ends respectively connected to the pair of balls to urge the pair of balls toward the fool-proof hole;

and one end of the driving rod is positioned in the hollow pipe, the other end of the driving rod extends out of the hollow pipe, the driving rod can move between a first position and a second position, in the first position, one end of the driving rod is far away from the spring, in the second position, one end of the driving rod pushes the spring, and therefore the pair of balls deviate from the fool-proof hole.

In one embodiment, a reset piece is further arranged in the hollow tube, the reset piece is positioned on one side of the spring opposite to the driving rod, one end of the reset piece abuts against the spring, the other end of the reset piece is connected to the hollow tube through an elastic piece, and the elastic piece pushes the reset piece towards the spring.

In one embodiment, the guide rod is connected to the frame by a flexible cable, one end of which is connected to the guide rod and the other end of which is connected to the frame.

Drawings

Figure 1 is a perspective view of a hoisting mechanism according to one embodiment of the utility model.

Figure 2 is an exploded view of a jaw mechanism of one embodiment of the present invention.

FIG. 3 is a schematic view of a fool-proofing device of one embodiment of the present invention.

Fig. 4 is a schematic view of a split ring of one embodiment of the present invention.

Reference numerals: 100. a hoisting mechanism; 1. a frame; 2. a guide bar; 3. a jaw mechanism; 31. a connecting portion; 311. mounting holes; 312. a threaded hole; 32. a bolt; 33. a bolt seat; 331. an extension portion; 332; a pin hole; 34. a bolt; 341. a side wall of the plug; 342. a fool-proof hole; 343. an open end; 344. a closed end; 35. a fool-proof device; 351. a ball bearing; 352. a spring; 353. a drive rod; 354. a reset member; 355. An elastic member; 4. a split ring; 41. a compression member; 42. two ends of the split ring; 5. and (4) a soft rope.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the utility model can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms.

The present invention relates to a sling mechanism 100 for a battery pack (not shown). The battery pack is generally shaped like a rectangular parallelepiped, and opposite sides of the battery pack are provided with clamping portions protruding outward, and the clamping portions are provided with clamping holes. In some embodiments, the battery pack includes a secondary battery. In some embodiments, the battery pack includes a lithium ion secondary battery. The hoisting mechanism 100 comprises a frame 1, a pair of guide rods 2 and at least three clamping jaw mechanisms 3. A pair of guide rods 2 are movably connected to the frame 1 in parallel with each other. At least three gripper mechanisms 3 set up respectively on different guide arms 2 and along the length slidable connection of guide arm 2 in guide arm 2, and gripper mechanisms 3 are used for cooperating the centre gripping hole in order to snatch the clamping part. In the embodiment shown in fig. 1, a pair of guide rods 2 are connected to two ends of the frame 1, and two gripper mechanisms 3 are respectively arranged on the pair of guide rods 2, and the two gripper mechanisms 3 can slide along the guide rods 2, i.e. the distance between the two gripper mechanisms 3 is adjustable. Because different battery packs are different in size, the distance between the clamping parts on the two sides of the outside of the battery pack is different, and the spacing distance of the clamping holes is possibly different, the distance between the clamping jaw mechanisms 3 can be adjusted, and the clamping jaw mechanisms can be movably connected to the rack 1, so that the battery packs with different widths or lengths can be grabbed, and the adaptability is strong.

The guide rod 2 has a certain length, and the length direction is uniform and consistent. The cross-sectional shape of the guide rod 2 may be square or circular, or may be other irregular shapes, preferably circular, that is, the guide rod 2 is a cylinder as a whole. The outer circumference of the guide bar 2 has a certain smoothness to facilitate the sliding and fixing of the jaw mechanism 3. Two ends of the guide rod 2 are movably connected to the frame 1. It will be appreciated that the guide bar 2 may be movably connected to the chassis 1 in a number of ways. In the illustrated preferred embodiment, the guide bar 2 is connected to the frame 1 by a flexible cord 5, i.e., the flexible cord 5 is connected to one end of the guide bar 2 at one end and to the frame 1 at the other end, thereby facilitating the insertion of the battery pack between the two guide bars 2. It is to be understood that the two ends of the guide bar 2 may also be hinged to the frame 1 by means of, for example, a link. It can be further understood that the lengths of the flexible cables 5 of the pair of guide rods 2 are consistent, the distances between the pair of guide rods 2 and the rack 1 are consistent, and when the hoisting mechanism 100 is operated, the pair of guide rods 2 are in the same horizontal plane, so that the battery pack can be more stably grabbed.

The jaw mechanism 3 includes a connecting portion 31, a latch base 33, and a latch 34. The connecting portion 31 is connected to the latch base 33 and has a mounting hole 311, and the guide rod 2 is inserted into the mounting hole 311, so that the connecting portion 31 can slide along the guide rod 2. The connecting portion 31 may have any shape, and the mounting hole 311 may be directly provided in the latch base 33. In the embodiment shown in fig. 1 and 2, the connection portion 31 is a connection rod, one end of the connection rod is connected to the top of the latch base 33, the other end extends in a direction perpendicular to the connection rod, and the mounting hole 311 is provided at a portion of the other end of the connection rod extending perpendicular to the connection rod. It is understood that the mounting hole 311 may be disposed at any other position of the connecting rod, and the shape of the mounting hole 311 is not limited, and may be square or circular. In the embodiment shown in fig. 2, the mounting holes 311 are circular holes matching the shape of the guide bar. It will be appreciated that the size of the mounting hole 311 should be larger than the outer circumferential profile of the guide bar 2.

Further, the connecting portion 31 may be fixed to the guide bar 2 when the battery pack needs to be grasped. Specifically, the connecting portion 31 is provided with a threaded hole 312 penetrating from the outside of the connecting portion 31 to the mounting hole 311, and an opening of the threaded hole 312 may be provided at any position outside the connecting portion 31. In the embodiment shown in FIG. 2, a threaded bore 312 is provided at the top of the connecting rod. The jaw mechanism 3 further comprises a bolt 32, the bolt 32 being adapted to pass through the threaded bore 312 and abut the guide bar 2 to secure the jaw mechanism 3 to the guide bar 2. The size of the screw 32 matches the threaded hole 312 and can be pressed against the guide bar 2 by continued rotation into the threaded hole 312 and presses the guide bar 2, so that the entire connecting portion 31 is fixed to the guide bar 2. The whole clamping jaw mechanism 3 and the guide rod 2 are relatively stable in position, and the battery pack can be conveniently grabbed.

Further, the connecting portion 31 may be fixed to the guide bar 2 by other means. Specifically, the hoisting mechanism 100 further comprises a pair of split rings 4, and the pair of split rings 4 are respectively arranged on the guide rods 2 at two sides of the clamping jaw mechanism 3. The ends 42 of the split ring are provided with constrictions 41 to allow the ends 42 of the split ring to move towards and away from each other, thereby allowing the split ring 4 to be fixedly or movably connected to the guide bar 2. Specifically, as shown in fig. 4, the inner circumference of the split ring 4 is smaller than or equal to the circumference of the guide rod, the two ends 42 of the split ring are provided with through threaded holes 312 which are open towards the end face of the split ring 4 and are aligned with each other, the tightening piece 41 is a screw rod which can be screwed into the threaded holes 312 from one end to the other end in a rotating manner, and the two ends 42 of the split ring are continuously closed by continuously screwing until the split ring 4 is fixed to the guide rod 2; or the two ends 42 of the split ring are gradually opened by reversely rotating the screw rod until the two ends 42 of the split ring are in a far state, and the split ring 4 can slide along the guide rod 2. It will be appreciated that the two ends 42 of the split ring may also extend perpendicularly outwards along the periphery, the threaded hole 312 may be provided at a position extending outwards from the split ring, the distance between the two ends may also be closer or farther by the bolt 32 and the nut, the two ends may also be fixed by providing a snap, and the tightening part 41 of the split ring 4 may be in various ways without being limited by the above examples.

The pin holder 33 is fixedly connected to the connecting portion 31, and the pin holder 33 is provided with two extensions 331 extending toward the other guide bar 2 and spaced apart from each other, and the two extensions 331 are provided with pin holes 332 aligned with each other. Specifically, as shown in fig. 2, the latch base 33 includes a side portion, two extensions 331 are disposed at the top and bottom of the side portion, and the two extensions 331 are identical in shape and aligned with each other, and both extend in the same direction perpendicular to the side portion, i.e., in the direction toward the other guide bar 2, the two extensions 331 and the side portion form a U-shaped jaw, the opening of the U-shaped jaw faces the other guide bar 2, latch holes 332 are disposed on the two extensions 331 and aligned from top to bottom, and the latch 34 can be inserted into the clamping hole of the battery pack along the latch hole 332 at the top and into the latch hole 332 at the bottom, thereby clamping the clamping portion of the battery pack. It is to be understood that the shape of the pin base 33 is not limited, and the shape of the extension 331 is also not limited, and may be any shape as long as the extending direction of the two extensions 331 and the pin hole 332 are aligned.

Further, the latch 34 is provided with a fool-proof device 35. Specifically, the fool-proofing device 35 includes a pair of balls 351, a spring 352, and an actuating lever 353. The pin 34 is a hollow tube with an open end 343 at one end and a closed end 344 at the other end. The side wall 341 of the plug is provided with a fool-proof hole 342 with opposite diameters, the fool-proof hole 342 is disposed at a position close to the closed end 344 along the length direction of the plug 34, and the fool-proof hole 342 may have any shape, preferably a circular shape. The size of fool-proof hole 342 is set according to the diameter size of ball 351, and the diameter of fool-proof hole 342 is at least less than the diameter of ball 351, and will guarantee that the roll can stretch out to the outside of bolt 34 through fool-proof hole 342, stretch out to the outside size of bolt 34 plus the diameter of bolt 34 need be greater than the diameter of bolt hole 332.

The pair of balls 351 are disposed in the hollow tube, and the diameter of the pair of balls 351 is larger than that of the fool-proof hole 342 and is disposed in the fool-proof hole 342, respectively. The two fool-proof holes 342 are identical in size, and the diameters of the balls 351 are identical and larger than the diameters of the fool-proof holes 342. The spring 352 is located between the pair of balls 351 and has both ends connected to the pair of balls 351, respectively, to urge the pair of balls 351 toward the fool-proof hole 342.

One end of the drive rod 353 is located within the hollow tube and the other end extends out of the hollow tube. Specifically, the drive rod 353 is located within the hollow tube and has one end extending out of the open end 343 and the other end adjacent the spring 352. The driving lever 353 is movable between a first position in which one end is away from the spring 352 and a second position in which the one end pushes the spring 352, thereby biasing the pair of balls 351 away from the fool-proof hole 342. It will be appreciated that the movement of the actuator arm 353 can be actuated in a variety of ways, such as by providing an actuator and connecting the actuator to a control device, which can automatically apply a force to the actuator arm 353, and can also actuate the actuator arm 353 in a bluetooth remote manner.

Further, the fool-proofing device 35 also includes a reset piece 354, the reset piece 354 being located inside the hollow tube on the opposite side of the drive rod 353, i.e., near the closed end 344 of the hollow tube. One end of the return member 354 abuts against the spring 352 and the ball 351 and the other end is connected to the hollow tube closed end 344 by a resilient member 355, and the resilient member 355 urges the return member 354 toward the spring 352. The restoring member 354 may also provide a supporting force for the spring 352 and the balls 351 so that the two balls 351 are respectively located in the fool-proof holes 342. When the plug pin 34 needs to be pulled out of the plug pin seat 33, the driving rod 353 is forced to move towards the spring 352 and the reset piece 354 towards the closed end 344 by the driving rod 353, so that the elastic two ends drive the balls to be away from the foolproof opening, and the plug pin 34 can be pulled out of the plug pin hole 332 smoothly. In the embodiment of fig. 3, the return member 354 is also a spring, it being understood that the resilient member 355 is not yet another substance, such as a magnet. Two repelling magnets are disposed on the restoring member 354 adjacent to the closed end 344, and one is disposed at the closed end 344, and the repelling of the two magnets also causes the restoring member 354 to have a direction of pushing against the ball 351.

The clamping jaw mechanism 3 of the hoisting mechanism 100 can slide along the guide rod 2, the guide rod 2 can be movably connected to the rack 1, the displacement among the clamping jaw mechanisms 3 can be adjusted, so that the hoisting mechanism 100 can adapt to battery packs of different sizes, and the clamping jaw mechanism 3 is further provided with the fool-proof device 35, so that the clamping jaw mechanism 3 can stably grab the battery packs and place damages of the battery packs.

While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that various changes and modifications of the utility model can be effected therein by those skilled in the art after reading the above teachings of the utility model. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims (9)

1. The utility model provides a hoisting machine constructs for battery package, the relative both sides of battery package are equipped with outside convex clamping part, be equipped with the centre gripping hole on the clamping part, its characterized in that, hoisting machine constructs and includes:

a frame;

a pair of guide rods movably connected to the frame in parallel with each other; and

at least three clamping jaw mechanisms, at least three clamping jaw mechanisms set up respectively in the difference on the guide arm and along the length of guide bar slidable connection in the guide arm, just clamping jaw mechanism is used for cooperating the centre gripping hole snatchs the clamping part.

2. A hoisting mechanism according to claim 1 wherein said jaw mechanism comprises a connecting portion provided with a mounting hole and said guide rod is inserted into said mounting hole such that said connecting portion can slide along said guide rod.

3. The hoisting mechanism of claim 2 wherein said connecting portion has a threaded hole extending through said connecting portion to said mounting hole, said jaw mechanism further comprising a bolt adapted to pass through said threaded hole and abut said guide rod to secure said jaw mechanism to said guide rod.

4. The hoisting mechanism according to claim 1, further comprising a pair of split rings, said split rings being respectively disposed on said guide rods on both sides of each of said jaw mechanisms, the inner circumference of said split rings being less than or equal to the circumference of said guide rods, and tightening members being provided at both ends of said split rings, said tightening members being capable of moving both ends of said split rings toward and away from each other;

in the closed position, the constriction may secure the split ring to the guide rod;

in the remote state, the split ring is slidable along the guide bar.

5. A hoisting mechanism according to claim 4, characterized in that said open ring is provided at both ends with through threaded holes opening towards the end face of said open ring and aligned with each other, said constriction being a screw.

6. The hoisting mechanism of claim 2 wherein said jaw mechanism further comprises:

a pin seat connected to the connection part, the pin seat being provided with two extensions extending toward the other guide bar and spaced apart from each other, the two extensions being provided with pin holes aligned with each other; and

and the bolt can be inserted into the bolt hole.

7. A hoisting mechanism according to claim 6,

the bolt is a hollow tube, and foolproof holes with opposite diameters are formed in the side wall of the bolt;

a pair of balls are arranged in the hollow pipe, the diameter of each ball is larger than the inner diameter of the foolproof hole, and the balls are respectively arranged in the foolproof holes;

a spring positioned between the pair of balls and having both ends respectively connected to the pair of balls to urge the pair of balls toward the fool-proof hole;

and one end of the driving rod is positioned in the hollow pipe, the other end of the driving rod extends out of the hollow pipe, the driving rod can move between a first position and a second position, in the first position, one end of the driving rod is far away from the spring, in the second position, one end of the driving rod pushes the spring, and therefore the pair of balls deviate from the fool-proof hole.

8. A hoisting mechanism according to claim 7, characterized in that a return element is further provided inside said hollow tube, said return element being located on the opposite side of said spring to said drive rod and having one end abutting against said spring and the other end connected to said hollow tube by means of an elastic element urging said return element towards said spring.

9. The hoisting mechanism of claim 1 wherein said guide rod is connected to said frame by a flexible cable, one end of said flexible cable being connected to said guide rod and the other end of said flexible cable being connected to said frame.

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