Elastic hoisting clamp for lithium battery module

Abstract

The utility model discloses an elastic hoisting clamp for a lithium battery module, which realizes the function of quickly locking and quickly detaching the battery module by a grabbing table through the matching between an elastic rope and a rigid rope, and meanwhile, the elastic rope is matched with the rigid rope, so that the hoisting flexibility is improved, and different modules are conveniently clamped; and in the lifting process, stress of the lifting holes in the two ends of the module can be balanced and buffered to a certain extent, and deformation caused by uneven stress and large impact force of the lifting holes in the two ends during lifting is prevented. And the operation hand feeling is also improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, and in particular to an elastic lifting fixture for a lithium battery module. Background Art

[0002] Hoisting is an indispensable part of industrial production. In industrial production, a product needs to go through many processes from raw materials to finished products, and the transfer of products from the previous process to the next process requires hoisting and clamping.

[0003] Now with the development of new energy, the battery field has also developed rapidly, and batteries have also developed from lower energy density to higher energy density.

[0004] Therefore, manufacturers are paying more and more attention to safety issues during the process of hoisting battery modules. However, existing clamps for hoisting battery modules have problems such as not clamping tightly enough or requiring greater pressure to be applied to the battery to clamp the battery module.

[0005] For example, the "Lifting and Clamping Device Used in the Production and Processing of Lithium Batteries" in announcement number CN211545679U has a spring in the clamping part, which applies pressure to the battery module to clamp the module by static friction. On the one hand, this solution requires the use of other power sources when clamping the battery module, and the high force applied to the battery during clamping can easily damage it. For larger battery modules, the problem of battery module slippage is still easy to occur. The speed of adjusting the size of the clamp for battery modules of different sizes is also slow, and production efficiency is low. Utility Model Content

[0006] To address the shortcomings of the existing technology, the present invention provides an elastic lifting fixture for lithium battery modules. This fixture can quickly adapt to and secure battery modules of varying lengths. The lifting bracket, along with the battery module, can be quickly transferred using the rail's lifting rings. This rapid adaptation allows for adapting to the length of the battery module, allowing the distance between the gripping platforms to be quickly adjusted to the module's length by moving the slider. Furthermore, after positioning the battery module, the clamping column can be quickly locked into place on the module by pulling the elastic cord, quickly locking the fixture to the module. The combination of the elastic cord and the rigid cord not only increases lifting flexibility and facilitates clamping of different modules, but also balances and cushions the forces acting on the lifting holes at both ends of the module during the lifting process, preventing deformation caused by uneven forces and high impact during lifting. This also significantly improves the user experience. This fixture can improve the handling efficiency of battery modules and enhance production efficiency.

[0007] The utility model achieves the above technical objectives through the following technical means.

[0008] A lithium battery module elastic lifting fixture, the slide rail is rod-shaped, the middle part of the slide rail is provided with a plurality of bosses extending outwards in all directions, and the middle part of the slide rail is provided with a slide rail lifting hole between the first slot and the third slot.

[0009] The slide rail is sleeved with a slider, and the slide rail hoisting hole is installed with a slide rail lifting ring.

[0010] Furthermore, a first slot is provided between the first boss and the second boss in the boss, a limit block is provided at the upper end of the first boss and the second boss to fit with the slide rail surface, and a slide rail mounting hole is provided in the middle of the slide rail to pass through the slide rail.

[0011] Furthermore, a slider ring is provided at the center of the lower end surface of the slider, and the slider ring is fitted with the ring portion of the mixing part. The mixing part is composed of a rigid rope and an elastic rope, and the upper and lower sections of the mixing part are connected by the rigid rope and the elastic rope.

[0012] Furthermore, a locking pin is provided on the side of the slider, and the locking pin passes through the side wall of the slider. The small end of the locking pin is located in a second slot provided between the second boss and the third boss in the boss.

[0013] Furthermore, three holes are provided on the slide rail and are perpendicular to the rod portion of the slide rail. The hole in the middle of the slide rail cooperates with the rod portion of the slide rail hanging ring, and the holes at both ends are symmetrically distributed.

[0014] Furthermore, the limit block is provided with a through hole, and the holes provided at both ends of the slide rail are limit pin holes. The limit block and the limit pin holes of the slide rail are connected through limit pins, and the limit block and the limit pins are symmetrically distributed on both sides of the slide rail.

[0015] Furthermore, a slider ring is provided below the slider, and the slider ring is divided into a rod portion and a ring portion. The rod portion passes through the lower end surface of the slider to the interior of the slider and is located in a third slot provided between the third boss and the fourth boss in the boss.

[0016] Furthermore, the length of the rigid rope located between the upper and lower sections of the mixing part is greater than that of the elastic rope, and the ring portion of the mixing part located in the lower section is fitted with the lifting ring of the grabbing platform.

[0017] Furthermore, a grabbing platform is provided below the grabbing platform lifting ring, the grabbing platform is C-shaped, the rod of the grabbing platform lifting ring passes through the top of the grabbing platform, and a clamping column is provided at the bottom of the grabbing platform.

[0018] The utility model has the following gain effects:

[0019] This elastic lithium battery module lifting fixture can quickly adapt to and secure battery modules of varying lengths. The slide rail eyelets on the slide rails allow for rapid transfer of the battery module along with the lifting fixture. This rapid adaptation allows for adapting to the length of the battery module, allowing the distance between the gripping platforms to be quickly adjusted to the module's length by moving the slider. Furthermore, after positioning the battery module, the clamping column can be quickly snapped into place on the module by pulling the elastic cord, quickly locking the lifting fixture to the module. The combination of the elastic cord and the rigid cord not only increases lifting flexibility and facilitates clamping of different modules, but also balances and cushions the forces acting on the lifting holes at both ends of the module during the lifting process, preventing deformation caused by uneven forces and high impact during lifting. This also significantly improves operational feel, enhancing the handling efficiency of battery modules and boosting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main schematic diagram of the utility model.

[0021] Figure 2 This is a schematic diagram of the assembly of the slide rail part of the utility model.

[0022] Figure 3 This is a schematic diagram of the main cross-sectional structure of the present utility model.

[0023] In the figure, 1- slide rail, 2- slider, 3- limit block, 4- slide rail lifting ring, 5- slider lifting ring, 6- rigid rope, 7- elastic rope, 8- grabbing platform lifting ring, 9- grabbing platform, 10- mixing part, 11- clamping column, 12- first boss, 13- second boss, 14- third boss, 15- fourth boss, 16- locking pin, 17- first slot, 18- second slot, 19- third slot, 20- fourth slot, 21- slide rail mounting hole, 22- limit pin, 23- limit pin hole, 24- slide rail lifting hole. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0025] Example:

[0026] like Figures 1 to 3 The utility model shown relates to an elastic lifting fixture for a lithium battery module. A slide rail 1 is horizontally arranged above the utility model. The slide rail 1 is the main force-bearing and supporting component of the elastic lifting fixture for the lithium battery module. The lifting ring used to lift the entire elastic lifting fixture for the lithium battery module is also installed on the slide rail 1.

[0027] When the slide rail 1 is observed from the front, it is rod-shaped and the length of the slide rail 1 is relatively long. When observed from the side, the end face structure of the slide rail 1 is relatively complex. It can be seen that the slide rail 1 extends from the middle main body to the surrounding areas, especially the four corners of the slide rail 1, with several bosses extending outward from the central main body, similar to a tic-tac-toe shape. The central body of the end face of the slide rail 1 is rectangular, extending along the two diagonals of the slide rail 1, and four bosses extend obliquely outward from the four corners of the slide rail 1. The boss in the upper left corner is defined here as the first boss 12. After the bosses are arranged clockwise, the remaining three bosses are the second boss 13, the third boss 14, and the fourth boss 15. The area size and shape of the bosses are the same, and the bosses are axially symmetrical.

[0028] Slots are provided between the bosses of the slide rail 1, with a slot provided between every two bosses. For example, a first slot 17 is provided between the first boss 12 and the second boss 13; a second slot 18 is provided between the second boss 13 and the third boss 14; a third slot 19 is provided between the third boss 14 and the fourth boss 15; and a fourth slot 20 is provided between the fourth boss 15 and the first boss 12. In the slide rail 1, the boss is a protruding portion, and the slot is a recessed portion. Therefore, the boss is used for contact and support, and is responsible for bearing the weight of the components in contact with the slide rail 1, thus playing a load-bearing role; the slot is used to engage, limit, and lock the components on the slide rail 1. Therefore, the slot of the slide rail 1 plays a role in limiting and locking.

[0029] On the middle main part of the slide rail 1, a slide rail mounting hole 21 is provided at the center of the main part of the slide rail 1 and runs through the entire slide rail 1. The slide rail mounting hole 21 can be used to install clamping plates on the two end faces of the slide rail 1, so as to limit the components installed on the slide rail 1 to be able to remain on the rod of the slide rail 1.

[0030] From the cross-section of the slide rail 1, it is easy to find that the shapes of the cross-sections of the slide rail 1 are uniform and the same at all locations. Therefore, the slide rail 1 is a profile, and the metal can be extruded through a die to form the shape of the slide rail 1. At the same time, making the slide rail 1 by die extrusion is also a better processing and manufacturing method for the slide rail 1.

[0031] If the slide rail 1 is milled from a square piece of metal using traditional milling, it is easy to find that the slide rail 1 is very long and difficult to clamp and secure on the machine tool. If only one end of the slide rail 1 is fixed, the other end of the slide rail 1, if left suspended, is very likely to bend and deform, affecting the subsequent machining accuracy. In addition, due to the long rod length of the slide rail 1, it is difficult and costly to machine the first, second, third, and fourth slots 17, 18, 19, and 20 on the slide rail 1. Furthermore, the machining accuracy is difficult to ensure, and it is difficult to ensure that each slot has good linearity.

[0032] In particular, the rail mounting hole 21 at the center of the rail 1 is a long hole with a relatively small diameter. In production, if a long hole with a relatively small diameter is to be machined, the drill bit must be very long and thin, requiring a customized drill bit, which is costly. Moreover, during the drilling process, the drill bit is easily unable to withstand the stress and breaks due to its large length and small diameter. Therefore, the best way to machine the rail 1 here is to use a metal block or metal plate at a high temperature and extrude it through a mold into the shape of the rail 1 of the present invention. This machining method is simple and the cost is much lower than that of cutting processing by machine tools. It is also more conducive to mass production, and the linearity of the produced rail 1 is also easier to maintain.

[0033] Three vertical holes are longitudinally machined on the slide rail 1. One end of the three vertical holes is located in the middle of the bottom of the first slot 17 between the first boss 12 and the second boss 13, and the other end of the three vertical holes is located in the middle of the bottom of the third slot 19 between the third boss 14 and the fourth boss 15. The three vertical holes are perpendicular to the bottom planes of the first slot 17 and the third slot 19.

[0034] Of the three vertical holes, two serve as stop pin holes 23, and the other serves as a rail hoisting hole 24. The rail hoisting hole 24 is located in the middle of the rail 1, and the rails on either side of the hole are the same length. The rail hoisting holes 24 are reserved for mounting the rail hoisting rings 4 on the rail 1, allowing the rail 1 to be more easily lifted via the rail hoisting rings 4, thereby enabling the battery module to be moved along with it.

[0035] Therefore, there are high requirements for the opening position of the slide rail hoisting hole 24 on the slide rail 1. The slide rail hoisting hole 24 must not deviate from the center position of the slide rail. When the slide rail 1 is lifted by the slide rail lifting ring 4, the slide rail 1 will not deflect or tilt significantly. At the same time, the slide rail 1 can be rotated within a certain angle range by the slide rail lifting ring 4 to adjust the stacking angle and position of the battery module after it is lifted and transported to the specified position by the lithium battery module elastic lifting fixture.

[0036] The two limit pin holes 23 on the slide rail 1 are symmetrically located above the slide rail mounting hole 24. These holes are used to mount the limit blocks 3, which in turn restrict the movement of the slider 2 on the slide rail 1. This prevents the slider 2 from falling off the slide rail 1 during installation, potentially causing damage or loss.

[0037] After describing the structure and function of the slide rail 1 in detail, the specific installation and connection methods of the components connected to the slider 1 will be described next.

[0038] The rail eye 4, mounted on the rail mounting hole 24 of the rail 1, has a circular head and a cylindrical shank. After passing through the rail mounting hole 24, it is secured to the rail 1 via a nut. The nut is larger than the third retaining groove 19, and the upper end of the nut partially contacts the lower end of the third and fourth bosses 14, 15. Before the rail 1 is lifted by the eye 4, the nut on the shank of the eye 4 does not contact the rail 1, resulting in minimal friction. At this point, the eye 4 can rotate relative to the rail 1, adjusting the angle of the lift.

[0039] After the slide rail lifting ring 4 is lifted, thereby driving the entire lithium battery module elastic lifting fixture to be lifted, the slide rail 1, under the action of gravity, the lower end surfaces of the third boss 14 and the fourth boss 15 come into contact with the nut on the handle of the slide rail lifting ring 4. At this time, because the battery module is lifted, a large friction force is generated between the slide rail 1 and the nut. At this time, the slide rail lifting ring 4 will not rotate relative to the slide rail 1, and the slide rail lifting ring 4 will maintain the angle when it just contacts the slide rail 1 to lift the battery module.

[0040] The slider 2 is in the shape of a hollow ring. The slider 2 is mounted on the rod of the slide rail 1. The upper end surface of the inner wall of the slider 2 is in full contact with the upper end surfaces of the first boss 12 and the second boss 13 during the lifting process. A locking pin 16 is inserted into the side of the slider. The locking pin 16 is located in the second slot 18 between the second boss 13 and the third boss 14. The locking pin 16 is used to move the slider 2 to the corresponding position on the slide rail 1 according to the length of the battery module. After matching the battery module, the locking pin 16 is screwed into the second slot 18 until the locking pin 16 hits the inner wall of the second slot 18, thereby fixing the slider 2 there. This prevents the slider 2 from sliding during the process of lifting and transporting the battery module after it is lifted. This would cause the force applied to the battery module during lifting to be unstable and fluctuating.

[0041] The inner walls of the slider 2 sandwich the first and second bosses 12, 13, third and fourth bosses 14, 15. The width of the inner walls of the slider 2 is slightly greater than the width of the rail 1. A hole is provided in the center of the bottom of the slider 2 for secure connection with the handle of the slider eye 5. The handle of the slider eye 5 terminates in a third slot 19 between the third and fourth bosses 14, 15.

[0042] Limit blocks 3 are mounted on the upper surfaces of the first and second bosses 12 and 13 at the limit pin holes 23 at both ends of the slide rail 1. Limit blocks 3 are inserted through the limit pin holes 23 via limit pins 22 and secured to the slide rail 1 via nuts. Limit blocks 3 are installed after the slider 2 is positioned on the slide rail 1. Once the slider 2 is positioned on the slide rail 1, limit blocks 3 are fixed at both ends of the slide rail 1 to prevent the slider 2 from falling off the rail 1 while sliding on it. This limits the range of motion of the slider 2 on the rail 1.

[0043] At the top of the slider's eye 5, where the slider 2 is mounted, a loop is connected to the top of the slider's eye 5, formed by a flexible combination of rigid rope 6 and elastic rope 7. Below this loop is a section 10 formed by the combination of rigid rope 6 and elastic rope 7. This section 10 is considered rigid. At the bottom of this section 10, the rigid rope 6 and elastic rope 7 separate, each extending a section of the rigid rope 6 and elastic rope 7. Because the elastic rope 7 is elastic and retractable, this section of the rigid rope 6 is longer than the elastic rope 7. The sections of the rigid rope 6 and elastic rope 7 eventually meet again and merge again, forming a second section 10. At the other end of this section 10, a loop is also looped over the top of the grabbing platform's eye 8.

[0044] The handle of the grabbing platform lifting ring 8 passes through the middle of the upper plate of the grabbing platform 9 and is fixed to the grabbing platform 9 by nuts. Similarly, the grabbing platform lifting ring 8 and the slide rail lifting ring 4 can be rotated by the handle of the lifting ring before the battery module is hoisted. After the hoisting begins, the slide rail lifting ring 4 and the grabbing platform lifting ring 8 will no longer rotate. Unlike the slide rail lifting ring 4, after the slide rail lifting ring 4 is rotated, the slide rail 1 can maintain the rotated angle for hoisting and transportation. However, after the grabbing platform 9 and the battery module are locked, the grabbing platform 9 will always maintain an angle that matches the battery module for hoisting, rather than changing due to changes in the rotation angle of the grabbing platform lifting ring 8.

[0045] The gripping platform 9 is C-shaped and open, making it easy to locate the battery module and thus clamp and lift it. The center of the upper plate of the gripping platform 9 has an opening that connects to the handle of the gripping platform lifting ring 8, while the center of the lower plate of the gripping platform 9 has a threaded hole that can be installed with a clamping column 11 of different lengths. The clamping column 11 mates with the clamping hole on the battery module to lock the battery module to the gripping platform 9.

[0046] Before the lifting process begins, assemble the elastic lifting fixture for the lithium battery module. First, secure the rail eye 4 to the rail mounting hole 24 of the slide rail 1 with a nut. Before placing the slider 2 onto the slide rail 1 and before installing the slider 2 onto the slide rail 1, install the slider eye 8 onto the slider 2. Then, with the end of the slider eye 8 facing downward, place the slider 2 onto the rod of the slide rail 1. Screw the locking pin 16 into the mounting hole on the side of the slider 2 to the length of the end, ensuring that most of the locking pin 16 is located inside the second slot 17, with a small portion exposed. Ensure that the locking pin 16 does not come into contact with the slide rail 1.

[0047] Move the slider 2 inward on the slide rail 1 to expose the limit pin hole 23. Then, attach the limit block 3 to the slide rail 1, ensuring that the edge of the limit block 3 is parallel to the edge of the slide rail 1. At this time, pass the limit pin 22 through the limit block 3 and the limit pin hole 23, and fix the limit block to the slide rail 1 with a nut to ensure that the limit block 3 cannot rotate relative to the slide rail 1.

[0048] Then, put the rope loop on the fusion part of the rope on the head of the slider ring 5, and put the rope loop on the other fusion part of the same rope on the grabbing platform ring 8. The grabbing platform ring is installed on the upper plate of the grabbing platform 9 through a nut, and the clamping column 11 is screwed into the threaded hole of the lower plate of the ring 9. At this point, the elastic lifting fixture of the lithium battery module in the present invention is assembled.

[0049] Here we describe how the present invention hoists the battery module. When starting to hoist, first lift the elastic hoisting clamp of the lithium battery module and keep the grabbing platform 9 in a suspended state. At this time, align the clamping column 11 of the grabbing platform 9 with the corresponding clamping hole on the battery module, insert the clamping column 11 into the clamping hole, adjust the position of the slider 2 on the slide rail 1, and ensure that the rope remains vertical during the hoisting process. After the slider 2 slides to the appropriate position, the locking pin 16 on the side wall of the slider 2 can be rotated to fit the inner wall of the second clamping groove 18 of the slide rail 1. After locking the slider 2 in the position of the slide rail 1, the height of the battery module can be raised by the slide rail lifting ring 4, and the battery module can be moved to the required position and then lowered.

[0050] It is also very convenient to lift the battery module by contact. You only need to pull the grabbing platform 9, separate the clamping column 11 from the clamping hole on the battery module, and then move the grabbing platform 9 to one side, and the battery module will be released from the lifting.

[0051] The utility model realizes the quick lock and quick release function of the grabbing platform 9 to the battery module through the cooperation between the elastic rope 7 and the rigid rope 6. At the same time, the cooperation between the elastic rope 7 and the rigid rope 6 not only increases the flexibility of the hoisting and facilitates the clamping of different modules, but also can balance and buffer the force on the hoisting holes at both ends of the module during the hoisting and rising process, preventing the hoisting holes at both ends from being deformed due to uneven force and large impact during hoisting. It also improves the operating feel to a certain extent.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lithium battery module elastic lifting fixture, characterized in that: The slide rail (1) is rod-shaped, and a plurality of bosses are provided in the middle of the slide rail (1) and extend outward in all directions. A slide rail hoisting hole (24) is provided in the middle of the slide rail (1) and between the first clamping groove (17) and the third clamping groove (19). The slide rail (1) is sleeved with a slider (2), and a slide rail lifting ring (4) is installed at the slide rail lifting hole (24).

2. The elastic lifting fixture for lithium battery module according to claim 1, characterized in that: A first clamping groove (17) is provided between the first boss (12) and the second boss (13) in the boss, and a limit block (3) is provided at the upper end of the first boss (12) and the second boss (13) to fit the surface of the slide rail (1), and a slide rail mounting hole (21) is provided in the middle of the slide rail (1) to pass through the slide rail (1).

3. The elastic lifting fixture for lithium battery module according to claim 1, characterized in that: A slider ring (5) is provided at the center of the lower end surface of the slider (2), and the slider ring (5) is fitted with the ring portion of the mixing portion (10). The mixing portion (10) is composed of a rigid rope (6) and an elastic rope (7), and the upper and lower sections of the mixing portion (10) are connected by the rigid rope (6) and the elastic rope (7).

4. A lithium battery module elastic lifting fixture according to claim 1 or 3, characterized in that: A locking pin (16) is provided on the side of the slider (2), and the locking pin (16) passes through the side wall of the slider (2). The small end of the locking pin (16) is located in a second slot (18) provided between the second boss (13) and the third boss (14) in the boss.

5. The elastic lifting fixture for lithium battery module according to claim 1, 2 or 3, characterized in that: The slide rail (1) is provided with three holes extending through a rod perpendicular to the slide rail (1). The hole in the middle of the slide rail (1) cooperates with the rod of the slide rail hanging ring (4), and the holes at both ends are symmetrically distributed.

6. The elastic lifting fixture for lithium battery module according to claim 2, characterized in that: The limit block (3) is provided with a through hole, and the holes provided at both ends of the slide rail (1) are limit pin holes (23). The limit block (3) and the limit pin hole (23) of the slide rail (1) are connected through a limit pin (22), and the limit block (3) and the limit pin (22) are symmetrically distributed on both sides of the slide rail (1).

7. The elastic lifting fixture for lithium battery module according to claim 1, 2 or 3, characterized in that: A slider hanging ring (5) is provided below the slider (2), and the slider hanging ring (5) is divided into a rod portion and a ring portion. The rod portion passes through the lower end surface of the slider (2) to the interior of the slider (2) and is located in a third slot (19) provided between a third boss (14) and a fourth boss (15) in the boss.

8. The elastic lifting fixture for lithium battery module according to claim 3, characterized in that: The rigid rope (6) located between the upper and lower sections of the mixing part (10) is longer than the elastic rope (7), and the ring part of the mixing part (10) located in the lower section is fitted with the grabbing platform ring (8).

9. The elastic lifting fixture for lithium battery module according to claim 8, characterized in that: A grabbing platform (9) is provided below the grabbing platform lifting ring (8), and the grabbing platform (9) is C-shaped. The rod of the grabbing platform lifting ring (8) passes through the top of the grabbing platform (9), and a clamping column (11) is provided at the bottom of the grabbing platform (9).

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