CN116119523A - Lifting jaw mechanism - Google Patents

Abstract

The application discloses hoist and mount clamping jaw mechanism, including first mounting and clamping jaw device, clamping jaw device includes the pull rod and a plurality of clamping piece, the pull rod is connected in first mounting and with first mounting swing joint, the one end and the first mounting of clamping piece are connected, the pull rod includes first pole portion, the one end of pull rod is located to first pole portion, in the axial of pull rod and keep away from the direction of first mounting, the cross-sectional area of partial first pole portion increases gradually, the circumferential surface of the common centre gripping pull rod of a plurality of clamping pieces, when hoist and mount group battery, first pole portion upwards slides, each clamping piece is strutted by first pole portion for the central axis of pull rod is kept away from to the clamping piece removes, makes each clamping piece all support with the inner wall of lifting hole and holds, hoist and mount clamping jaw mechanism's structure has been reduced hoist and mount clamping jaw mechanism's manufacturing cost, the in-process device to group battery's of hoist and mount has improved hoist and mount group battery's stability, and can realize the auto-lock, the security has been improved.

Description

Lifting jaw mechanism

technical field

The present application relates to the technical field of battery pack handling, in particular to a hoisting claw mechanism.

Background technique

With the gradual maturity of new energy technology, power batteries have been widely used in various fields. In the power battery assembly line, it is usually necessary to move the battery pack into the box for subsequent work. The existing battery packs are large in size. During the automatic production process of power battery boxes, electric or pneumatic components are usually used to drive the grippers to clamp the two sides of the module to realize the clamping function, so as to carry out the hoisting of the battery pack.

However, the design and manufacture cost of the existing hoisting jaw mechanism is high, the mechanism and action are complicated, and the control and debugging costs are high. Therefore, how to simplify the structure of the hoisting jaw mechanism and reduce the manufacturing cost of the hoisting jaw mechanism has become an urgent problem. question.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. Therefore, the present application proposes a hoisting jaw mechanism, which simplifies the structure of the hoisting jaw mechanism and reduces the manufacturing cost of the hoisting jaw mechanism.

The hoisting jaw mechanism according to the embodiment of the present application is used for hoisting a battery pack, the battery pack is provided with a hoisting hole, the hoisting jaw mechanism includes a first fixing member and a jaw device, and the jaw device includes a pull rod and a plurality of clamping pieces, the pull rod is connected to the first fixing piece and is movably connected with the first fixing piece, one end of the clamping piece is connected to the first fixing piece, and the pull rod includes a first A rod part and a second rod part, the first rod part is connected to one end of the second rod part, at least part of the first rod part is The cross-sectional area of a rod part gradually increases, and a plurality of clamping parts jointly clamp the circumferential surface of the pull rod; wherein, the first rod part and the clamping part are far away from the first fixing part One end of the first rod can be accommodated in the lifting hole, and the first rod can slide relative to the clamping part along the axial direction of the tie rod, so that at least part of the clamping part moves away from the center of the tie rod The direction of the axis is moved, so that each of the clamping pieces respectively abuts against the inner wall of the lifting hole.

The hoisting jaw mechanism according to the embodiment of the present application has at least the following beneficial effects: a plurality of clamping pieces of the clamping jaw device are clamped on the circumferential surface of the pull rod, and the clamping pieces are fixed to the first fixing piece. , insert the end of the first rod and the clamping part away from the first fixing part into the lifting hole of the battery pack, pull the pull rod upward, the first rod slides upward relative to the clamp along the axial direction of the pull rod, and the first rod In the axial direction of the pull rod and in the direction away from the first fixing part, the outer diameter of part of the first rod part gradually increases, and each clamping part is stretched by the first rod part, so that the clamping part slides away from the central axis of the pull rod, Each of the clamping parts is made to resist the inner wall of the hoisting hole, which simplifies the structure of the hoisting jaw mechanism and reduces the manufacturing cost of the hoisting jaw mechanism.

In some embodiments, the circumferential surface of the pull rod is provided with a plurality of first grooves, the first grooves are arranged along the axial direction of the pull rod, and each of the clamping pieces is matched with each other one by one. The first groove part.

In some embodiments, the first rod part has a first slope, on the side of the first fixing part close to the clamping part, along the axial direction of the pull rod and away from the side of the first fixing part In the direction, the first slope extends in a direction away from the central axis of the pull rod, and the first slope can slide relative to the clamping member.

In some embodiments, the clamping member has a first clamping surface and a second clamping surface connected to each other, the first clamping surface extends along the axial direction of the tie rod, and And in a direction away from the first fixing member, the second clamping face extends in a direction away from the central axis of the tie rod;

Wherein, the first clamping surface is in contact with the surface of the pull rod and can slide relatively, and the second clamping surface is in contact with the first inclined surface and can slide relatively.

In some embodiments, the jaw device further includes a second fixing piece and a positioning piece, the second fixing piece is fixedly connected with the first fixing piece, and the second fixing piece is provided with a first mounting hole and a positioning piece. The second installation hole, the pull rod is passed through the first installation hole, there is a gap between the pull rod and the inner wall of the first installation hole, and the positioning member is passed through the second installation hole and connected to the first installation hole. The clamping piece is connected, and there is a gap between the positioning piece and the inner wall of the second installation hole.

In some embodiments, the jaw device further includes a first elastic member, and the pull rod is provided with a first boss, and the first boss is arranged on a side of the second fixing member far away from the clamping member. side, the first elastic member is wound around the pull rod, one end of the first elastic member is in contact with the first boss, and the other end of the first elastic member is in contact with the second fixing member. hold.

In some embodiments, the jaw device further includes a second elastic member, and the pull rod is provided with a second boss, and the second boss is arranged on the second fixing member close to the first rod. One side, and the second boss is against the second fixing part, and the clamping part is provided with a third boss, and the third boss is arranged on the side of the clamping part away from the pull rod. On one side, the second elastic member is wound around the circumferential surface of the combination of the pull rod and the plurality of clamping members, and one end of the second elastic member is in contact with the second boss, so that The other end of the second elastic member is against the third boss.

In some embodiments, the lifting jaw mechanism further includes a third fixing part and a power part, the third fixing part is located on the side of the first fixing part away from the clamping part, and the power part is installed In one of the first fixing member and the third fixing member, the output end of the power member is connected to the other of the first fixing member and the third fixing member, and the pull rod is connected to the third fixing member. The third fixing member is connected.

In some embodiments, the third fixing member is provided with a fourth installation hole, the pull rod passes through the fourth installation hole, and there is a gap between the pull rod and an inner wall of the fourth installation hole.

In some embodiments, multiple jaw devices are provided, and the first fixing member is connected to multiple jaw devices for hoisting the battery pack.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present application is described further, wherein:

Fig. 1 is the structural representation of the hoisting jaw mechanism of the embodiment of the present application;

Fig. 2 is a structural schematic diagram of another perspective of the hoisting jaw mechanism in Fig. 1;

Fig. 3 is a partial enlarged view of place A in Fig. 2;

Fig. 4 is a partial enlarged view of place B in Fig. 2;

Fig. 5 is a schematic structural view of the pull rod in Fig. 1;

Fig. 6 is a schematic structural view of the clamping member in Fig. 1;

Fig. 7 is a schematic structural diagram of the second fixing member in Fig. 1;

FIG. 8 is a schematic structural diagram of a third fixing member in FIG. 1 .

Reference signs: first fixing piece 100, pull rod 200, first rod portion 210, first groove portion 211, first slope 212, first boss 213, first elastic member 214, second boss 215, second Elastic piece 216, second rod portion 220, clamping piece 300, first clamping surface 310, second clamping surface 320, third mounting hole 330, positioning piece 331, third boss 340, second fixing piece 400 , the first installation hole 410 , the second installation hole 420 , the third fixing member 500 , the fourth installation hole 510 , the power member 600 , the jaw device 700 , the battery pack 800 , and the hoisting hole 810 .

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, are only for explaining the present application, and should not be construed as limiting the present application.

In the description of the present application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the application and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.

In the description of the present application, several means more than one, and multiple means more than two. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of this application, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution.

In the description of this application, reference to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" is intended to mean that the embodiments Specific features, structures, materials, or characteristics described in or examples are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic structural view of the hoisting jaw mechanism of the embodiment of the present application; Fig. 2 is a structural schematic diagram of another perspective of the hoisting jaw mechanism in Fig. 1; Fig. 3 is a partial enlarged view of A in Fig. 2; Fig. 4 It is a partial enlarged view of B in Fig. 2;

Fig. 5 is a schematic diagram of the structure of the pull rod in Fig. 1; Fig. 6 is a schematic diagram of the structure of the clamping part in Fig. 1; Fig. 7 is a schematic diagram of the structure of the second fixing part in Fig. 1; Fig. 8 is a structure diagram of the third fixing part in Fig. 1 schematic diagram. Wherein, in FIG. 2, the battery pack is cut along the central axis of the hoisting hole, so as to expose the specific structure of the first rod part. FIG. 7 and FIG. 8 retain part of the structure of the tie rod.

Refer to Figure 1 and Figure 2. The embodiment of the present application provides a hoisting jaw mechanism for hoisting a battery pack 800. The battery pack 800 is provided with a hoisting hole 810. The hoisting jaw mechanism includes a first fixing member 100 and a jaw device 700. The jaw device 700 It includes a pull rod 200 and a plurality of clamping parts 300. The pull rod 200 is connected to the first fixing part 100 and is movably connected with the first fixing part 100. One end of the clamping part 300 is connected to the first fixing part 100. The pull rod 200 includes interconnected The first rod part 210 and the second rod part 220, the first rod part 210 is connected to one end of the second rod part 220, in the axial direction of the pull rod 200 and the direction away from the first fixing part 100, the first rod part 210 The cross-sectional area of one end increases gradually, and this part of the first rod part 210 is connected with the second rod part 220, and a plurality of clamping parts 300 jointly clamp the circumferential direction of the part of the first rod part 210 and the second rod part 220. surface. Wherein, when the battery pack 800 is hoisted, the pull rod 200 is placed vertically, the first rod portion 210 is located at the lower end of the pull rod 200, and the first rod portion 210, part of the second rod portion 220 and part of the clamping member 300 are accommodated in the lifting hole 810 , the pull rod 200 slides relative to the clamping member 300 along the axial direction of the pull rod 200, and the part of the first rod portion 210 whose cross-sectional area gradually increases slides relative to the clamping member 300 along the axial direction of the pull rod 200, so that at least part of the clamping The member 300 moves away from the central axis of the tie rod 200 , so that each clamping member 300 respectively abuts against the inner wall of the lifting hole 810 .

Refer to Figure 1 and Figure 2. Specifically, in some embodiments, the pull rod 200 is connected to one side of the first fixing member 100 , and the pull rod 200 is movably connected to the first fixing member 100 . The connection method between the tie rod 200 and the first fixing member 100 is not limited thereto, and the tie rod 200 can also pass through the first fixing member 100 and be movably connected with the first fixing member 100 .

Specifically, in some embodiments, the battery pack 800 is a battery module, and the hoisting hole 810 is disposed on the module end plate of the battery module. The embodiment of the battery pack is not limited thereto, the battery pack 800 may also be a battery module, and the hoisting hole 810 is disposed on a structural member at an end of the battery module. Alternatively, the battery pack 800 may also be a battery pack, and the lifting holes 810 are provided on the lifting ears of the battery box.

Specifically, in some embodiments, when the battery pack 800 is hoisted, the pull rod 200 is placed vertically, the first rod portion 210 is located at the lower end of the pull rod 200, the first rod portion 210, part of the second rod portion 220 and part of the clamping member 300 is accommodated in the hoisting hole 810, the tie rod 200 slides relative to the clamping part 300 along the axial direction of the tie rod 200, and the part of the first rod part 210 whose cross-sectional area gradually increases slides relative to the clamping part 300 along the axial direction of the tie rod 200 , along the axial direction of the pull rod 200 , the clips 300 move downwards relative to the pull rod 200 as a whole, so that each clip 300 respectively abuts against the inner wall of the lifting hole 810 .

A plurality of clamping parts 300 of the clamping jaw device 700 are clamped on the circumferential surface of the pull rod 200, and the clamping parts 300 are fixed to the first fixing part 100. When the battery pack 800 is hoisted, the first rod part 210 and the clamping parts 300 is inserted into the hoisting hole 810 of the battery pack 800 at the end away from the first fixing member 100, and the pull rod 200 is pulled upward, the first rod part 210 slides upward relative to the clamping part 300 along the axial direction of the pull rod 200, and the first rod part 210 In the axial direction of the tie rod 200 and away from the first fixing part 100, the cross-sectional area of a part of the first rod part 210 gradually increases, and each clamping part 300 is stretched by the first rod part 210, so that the clamping part 300 is far away from The central axis of the pull rod 200 slides, so that each clamping member 300 is opposed to the inner wall of the hoisting hole 810, which simplifies the structure of the hoisting jaw mechanism, reduces the manufacturing cost of the hoisting jaw mechanism, and realizes the process of hoisting the battery pack 800 at the same time The fixing of the battery pack 800 by the middle jaw device 700, due to the action of gravity, the battery pack 800 has a tendency to slide downwards, and the clamping part 300 resists the inner wall of the hoisting hole 810, so that the clamping part 300 also moves along with the battery pack 800. The trend of sliding down, and because the first rod 210 slides upward relative to the clamping part 300 will make the clamping part 300 open, so the fixing of the clamping claw device 700 to the battery pack 800 is more firm due to the action of gravity, which improves the Stability of hoisting battery pack 800.

When the clamping part 300 breaks, the broken part of the clamping part 300 and the first rod part 210 are still in the hoisting hole 810, and the clamping part 300 has a tendency to slide downward along with the battery pack 800, so that the clamping part 300 will slide downward due to gravity. The claw device 700 fixes the battery pack 800 more firmly, which prevents the battery pack 800 from falling during hoisting, realizes the self-locking function of the clamping claws, improves safety, and ensures the quality of the battery pack 800 .

Specifically, in some embodiments, the arrangement of multiple clamping parts 300 is evenly distributed around the central axis of the tie rod 200. The circumferential surface of the tie rod 200 makes the force more uniform, thereby improving the stability of the hoisting jaw device 700 when hoisting the battery pack 800 .

The specific implementation manner in which the pull rod 200 and the clamping member 300 slide relative to each other will be specifically described below, and the states described are all states during hoisting.

Refer to Figure 1, Figure 2 and Figure 5. Specifically, in some embodiments, the circumferential surface of the pull rod 200 is provided with a plurality of first grooves 211, and the first grooves 211 are arranged along the axial direction of the pull rod 200, and each clamping piece 300 is matched with each other one by one. The first groove portion 211 . Wherein, each first groove portion 211 is arranged on the circumferential surface of part of the first rod portion 210 and part of the second rod portion 220, the cross-sectional area of the part of the first rod portion 210 gradually increases, and by setting the first groove portion 211 corresponds to the clamping piece 300 one by one, and the inner wall of the first groove 211 parallel to the central axis of the pull rod 200 is against the clamping piece 300 so that the pull rod 200 can slide relative to the clamping piece 300 along the axial direction of the pull rod 200 , the direction in which the pull rod 200 and the clamping member 300 slide relative to each other is limited, so that the clamping member 300 is stretched apart by the first rod portion 210 , which improves the stability of the hoisting jaw device 700 when hoisting the battery pack 800 .

Refer to Figure 1, Figure 2, Figure 4, Figure 5. More specifically, in some embodiments, the first rod portion 210 has a first slope 212 , on the side of the first fixing member 100 close to the clamping member 300 , along the axial direction of the pull rod 200 and away from the first fixing member 100 . direction, the first inclined surface 212 extends away from the central axis of the tie rod 200, so that the cross-sectional area of the part of the first rod portion 210 corresponding to the first inclined surface 212 gradually increases, and the first inclined surface 212 can be clamped with The member 300 slides relatively. Wherein, the first inclined surface 212 is in contact with the bottom wall of the first groove portion 211 located on the second rod portion 220 , when the battery pack 800 is hoisted, the pull rod 200 is pulled upward, and the first rod portion 210 is relative to the clip along the axial direction of the pull rod 200 . The holder 300 slides upwards, the first slope 212 slides relative to the holder 300, and each holder 300 is stretched, so that the holder 300 slides away from the central axis of the pull rod 200, so that each holder 300 is aligned with the lifting hole The inner wall of 810 resists to realize the fixing of the battery pack 800 by the jaw device 700 in the process of hoisting the battery pack 800 , and improves the stability of the hoisting battery pack 800 .

Refer to Figure 1, Figure 2, Figure 4 to Figure 6. Specifically, in some embodiments, the clamping member 300 has a first clamping surface 310 and a second clamping surface 320 connected to each other, and the first clamping surface 310 extends along the axial direction of the tie rod 200 , and along the axis of the tie rod 200 In a direction toward and away from the first fixing member 100 , the second clamping surface 320 extends in a direction away from the central axis of the pull rod 200 . Wherein, the pull rod 200 slides upward relative to the clamping member 300 in the axial direction, the first clamping surface 310 resists and slides relative to the surface of the pull rod 200, the surface of the pull rod 200 is the bottom wall of the first groove portion 211, the second The clamping surface 320 resists and slides relative to the first inclined surface 212, which improves the smoothness of the relative sliding of the pull rod 200 and the clamping member 300, reduces the degree of wear of the pull rod 200 and the clamping member 300 during sliding, and prolongs the lifting of the clamping jaws. service life of the mechanism.

Refer to Figures 1 to 7. Specifically, in some embodiments, the jaw device 700 further includes a second fixing part 400 and a positioning part 331, the second fixing part 400 is fixedly connected with the first fixing part 100, and the second fixing part 400 is provided with a first mounting hole 410 and the second installation hole 420 , the tie rod 200 passes through the first installation hole 410 , there is a gap between the tie rod 200 and the inner wall of the first installation hole 410 , and the tie rod 200 can move in the first installation hole 410 within the range of the gap. The positioning piece 331 is penetrated through the second mounting hole 420 and connected with the clamping piece 300. There is a gap between the positioning piece 331 and the inner wall of the second mounting hole 420, and the clamping piece 300 can follow the positioning piece 331 in the second mounting hole within the range of the gap. Move within 420. More specifically, in some embodiments, the second fixing member 400 further includes a second groove portion 430 communicating with the first installation hole 410 and the second installation hole 420, one end of the clamping member 300 is connected with the fixing member 400, and It is accommodated in the second groove portion 430 . Wherein, the range of the gap is 0-0.5mm.

Refer to Figures 1 to 7. More specifically, in some embodiments, the clamping member 300 is provided with a third installation hole 330, and the positioning member 331 is penetrated through the second installation hole 420 and the third installation hole 330 at the same time, so as to realize the clamping member 300 and the second fixing The connection of the part 400 is fixed, and the operation is convenient. Specifically, in some embodiments, the fixing method of the positioning piece 331 is not limited thereto, the positioning piece 331 can also be integrally formed with the clamping piece 300 or the positioning piece 331 can be directly welded on the clamping piece 300, avoiding clamping The opening of the member 300 affects the structural strength and improves the strength of the clamping member 300 .

Refer to Figures 1, 2, 5 and 6. Specifically, in some embodiments, the jaw device 700 further includes a first elastic member 214, the pull rod 200 is provided with a first boss 213, and the first boss 213 is arranged on a side of the second fixing member 400 away from the clamping member 300. side, the first boss 213 is arranged between the second fixing member 400 and the first fixing member 100, the first elastic member 214 is wound around the pull rod 200, and one end of the first elastic member 214 is against the first boss 213, The other end of the first elastic member 214 is against the second fixing member 400 . Wherein, when the pull rod 200 is inserted into the hoisting hole 810, the first elastic member 214 is compressed, the pull rod 200 is released, and the elastic force of the first elastic member 214 returns to the normal state to push back the first boss 213 upward, and the pull rod 200 moves upward. The first inclined surface 212 is in contact with the second clamping surface 320, and the pull rod 200 spreads the abutting member to realize the pre-resistance between the clamping member 300 and the inner wall of the hoisting hole 810, thereby avoiding the failure of the clamping member 300 when the battery pack 800 is hoisted. Contact with the inner wall of the hoisting hole 810 , so the hoisting force is too large, so that the pull rod 200 and the clamping member 300 are directly pulled out from the hoisting hole 810 during hoisting. The first elastic member 214 is provided to realize rebound pre-resistance, which makes hoisting the battery pack 800 more convenient, avoids hoisting failure due to strength during hoisting, improves convenience, and ensures hoisting stability.

Refer to Figures 1, 2, 5 and 6. Specifically, in some embodiments, the jaw device 700 further includes a second elastic member 216, the pull rod 200 is provided with a second boss 215, and the second boss 215 is arranged on the second fixing member 400 close to the first rod portion 210. One side, and the second boss 215 is opposed to the second fixing part 400, the clamping part 300 is provided with a third boss 340, the third boss 340 is arranged on the side of the clamping part 300 away from the pull rod 200, the second The elastic member 216 is wound around the circumferential surface of the combination of the pull rod 200 and the plurality of clamping members 300, the second elastic member 216 binds the pull rod 200 and the clamping members 300 together, and one end of the second elastic member 216 is connected to the first The two bosses 215 are in contact with each other, and the other end of the first elastic member 214 is in contact with the third boss 340 . The principle is the same as that of the first elastic member 214, wherein, when the pull rod 200 is inserted into the lifting hole 810, the second elastic member 216 is compressed, and the pull rod 200 is released, the elastic force of the second elastic member 216 returning to the normal state pushes the second boss 215 pushes back upwards, the pull rod 200 moves upwards, the first inclined surface 212 is opposed to the second clamping surface 320, and the pull rod 200 spreads the abutting part to realize the pre-resistance between the clamping part 300 and the inner wall of the hoisting hole 810, avoiding When the battery pack 800 is hoisted, the clip 300 is not in contact with the inner wall of the hoisting hole 810 , so the hoisting force is too large, so that the pull rod 200 and the clip 300 are directly pulled out of the hoisting hole 810 during hoisting. Rebound pre-resistance is realized by setting the second elastic member 216, which makes hoisting the battery pack 800 more convenient, avoids hoisting failure due to strength during hoisting, improves convenience, and ensures hoisting stability. In addition, providing the first elastic member 214 and the second elastic member 216 at the same time can enhance the stability of the battery pack 800 for hoisting.

Refer to Figure 1. Specifically, in some embodiments, the lifting jaw mechanism further includes a third fixing part 500 and a power part 600, the third fixing part 500 is located on the side of the first fixing part 100 away from the clamping part 300, and the power part 600 is installed on One of the first fixing member 100 and the third fixing member 500 , the output end of the power member 600 is connected to the other of the first fixing member 100 and the third fixing member 500 , and the pull rod 200 is connected to the third fixing member 500 . More specifically, in some embodiments, the power element 600 is installed on the first fixing element 100 , and the output end of the power element 600 is connected to the third fixing element 500 . In the axial direction of the pull rod 200, the power member 600 can drive the third fixing member 500 to move away from the first fixing member 100, and the third fixing member 500 drives the pull rod 200 to move away from the second fixing member relative to the first fixing member 100. 400, and the clamping part 300 is fixedly connected with the second fixing part 400, the pull rod 200 slides relative to the clamping part 300 along the axial direction of the pull rod 200, and the part of the first rod part 210 whose cross-sectional area gradually increases along the pull rod The axial direction of the 200 slides relative to the clamping parts 300 , so that at least part of the clamping parts 300 move away from the central axis of the tie rod 200 , so that each clamping part 300 respectively abuts against the inner wall of the lifting hole 810 . The pull rod 200 slides relative to the clamping member 300 along the axial direction of the pull rod 200, and the first rod portion 210 with a gradually increasing cross-sectional area slides relative to the clamping member 300 along the axial direction of the pull rod 200, and each clamping member 300 is supported. open, so that the clamping pieces 300 slide away from the central axis of the tie rod 200 , so that each clamping piece 300 abuts against the inner wall of the lifting hole 810 . The power part 600 provides the power to expand the clamping part 300, saving manpower.

In addition, referring to FIG. 1 and FIG. 8 , specifically, in some embodiments, the third fixing member 500 is provided with a fourth mounting hole 510, the pull rod 200 is passed through the fourth mounting hole 510, and the pull rod 200 and the fourth mounting hole 510 There is a gap in the inner wall. The pull rod 200 passes through the fourth installation hole 510 , there is a gap between the pull rod 200 and the inner wall of the fourth installation hole 510 , and the pull rod 200 can move in the first installation hole 410 within the range of the gap.

More specifically, in some embodiments, both the first fixing part 100 and the third fixing part 500 are plate parts, the tie rod 200 is connected to the first fixing part 100 and connected to the third fixing part 500, and the power part 600 is installed on the first fixing part 500. One of the first fixing part 100 and the third fixing part 500, the first fixing part 100 and the third fixing part 500 are set as plate parts to make the installation more convenient, and the installation of the power part 600 is more stable.

The arrangement form of the first fixing member 100 and the third fixing member 500 is not limited to the above-mentioned manner, specifically, in some embodiments, the first fixing member 100 and the third fixing member 500 are rod members, and the tie rod 200 is connected to the first The fixing part 100 is connected with the third fixing part 500, the first fixing part 100 and the third fixing part 500 are set as rods, so that in the process of hoisting the battery pack 800, the first fixing part 100 and the third fixing part 500 Higher strength, not easy to break, improving safety and reliability.

In addition, specifically, in some embodiments, one of the first fixing member 100 and the third fixing member 500 is a plate member, and the other is a rod member.

Refer to Figure 1. Specifically, in some embodiments, multiple jaw devices 700 are provided, and the first fixing member 100 is connected to the multiple jaw devices 700 for hoisting the battery pack 800 . More specifically, in some embodiments, there are generally four clamping jaw devices 700, and the four clamping jaw devices 700 respectively hoist the four corners of the outer contour of the battery pack 800, which improves the hoisting force when hoisting the battery pack 800, and at the same time The four corners of the battery pack 800 are hoisted, so that the hoisting force is evenly distributed, and the stability of the hoisted battery pack 800 is improved.

The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned embodiments, and within the scope of knowledge of those of ordinary skill in the art, various modifications can be made without departing from the purpose of the present application. Variety. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other under the condition of no conflict.

Claims (10)

1. The hoisting claw mechanism is used for hoisting the battery pack, and the battery pack is provided with a hoisting hole, and it is characterized in that the hoisting claw mechanism includes: first fixture; A jaw device, the jaw device includes a pull rod and a plurality of clamping parts, the pull rod is connected to the first fixing part and is movably connected with the first fixing part, and one end of the clamping part is connected to the The first fixing part is connected, and the pull rod includes a first rod part and a second rod part, and the first rod part is connected to one end of the second rod part, in the axial direction of the pull rod and away from the first rod part. In the direction of the fixing piece, the cross-sectional area of at least part of the first rod portion increases gradually, and a plurality of the clamping pieces jointly clamp the circumferential surface of the tie rod; Wherein, the first rod part and the end of the clamping part away from the first fixing part can be accommodated in the lifting hole, and the first rod part can be relative to the pull rod in the axial direction. The clamping pieces are slid to move at least part of the clamping pieces in a direction away from the central axis of the pull rod, so that each of the clamping pieces respectively abuts against the inner wall of the lifting hole. 2. The hoisting jaw mechanism according to claim 1, wherein a plurality of first grooves are provided on the circumferential surface of the pull rod, and the first grooves are arranged along the axial direction of the pull rod, each The clamping pieces are matched with each of the first grooves one by one. 3. The hoisting jaw mechanism according to claim 1, wherein the first rod portion has a first slope, on the side of the first fixing member close to the clamping member, along the pull rod In the axial direction and away from the first fixing part, the first slope extends in a direction away from the central axis of the pull rod, and the first slope can slide relative to the clamping part. 4. The lifting jaw mechanism according to claim 3, wherein the clamping member has a first clamping surface and a second clamping surface connected to each other, and the first clamping surface is along the The axial extension of the pull rod is along the axial direction of the pull rod and away from the first fixing member, and the second clamping face extends away from the central axis of the pull rod; Wherein, the first clamping surface is in contact with the surface of the pull rod and can slide relatively, and the second clamping surface is in contact with the first inclined surface and can slide relatively. 5. The hoisting jaw mechanism according to claim 1, wherein the jaw device further comprises a second fixing piece and a positioning piece, the second fixing piece is fixedly connected with the first fixing piece, and the The second fixing member is provided with a first installation hole and a second installation hole, the pull rod is passed through the first installation hole, there is a gap between the pull rod and the inner wall of the first installation hole, and the positioning member passes through the first installation hole. It is arranged in the second installation hole and connected with the clamping member, and there is a gap between the positioning member and the inner wall of the second installation hole. 6. The hoisting jaw mechanism according to claim 5, wherein the jaw device further comprises a first elastic member, the pull rod is provided with a first boss, and the first boss is arranged on the The second fixing piece is away from the side of the clamping piece, the first elastic piece is wound around the pull rod, one end of the first elastic piece is against the first boss, and the first elastic piece The other end of the piece is against the second fixing piece. 7. The hoisting jaw mechanism according to claim 5, wherein the jaw device further comprises a second elastic member, the pull rod is provided with a second boss, and the second boss is arranged on the The second fixing part is close to the side of the first rod part, and the second boss is against the second fixing part, and the clamping part is provided with a third boss, and the third boss is It is arranged on the side of the clamping member away from the pull rod, the second elastic member is wound around the circumferential surface of the combination of the pull rod and a plurality of the clamping members, and the second elastic member One end is against the second boss, and the other end of the second elastic member is against the third boss. 8. The lifting jaw mechanism according to claim 1, characterized in that, the lifting jaw mechanism further comprises a third fixing element and a power element, and the third fixing element is located away from the first fixing element. One side of the clamping part, the power part is installed on one of the first fixing part and the third fixing part, the output end of the power part is connected to the first fixing part and the third fixing part The other of the fixing parts is connected, and the pull rod is connected with the third fixing part. 9. The hoisting jaw mechanism according to claim 8, wherein the third fixing member is provided with a fourth mounting hole, the pull rod is passed through the fourth mounting hole, and the pull rod is connected to the fourth mounting hole. There is a gap in the inner wall of the fourth installation hole. 10. The hoisting jaw mechanism according to claim 1, wherein there are multiple jaw devices, and the first fixing member is connected to multiple jaw devices for hoisting the battery Group.

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