Production equipment for fastening belt of power battery module

Abstract

The invention relates to the technical field of power batteries, in particular to production equipment of a power battery module fastening belt. Comprising a first motor installed on a shell, an output shaft of the first motor is fixedly connected with a rotating shaft rotationally connected with the shell, the rotating shaft is rotationally connected with two fixing discs which are symmetrically distributed and fixedly connected to the shell, and the fixing discs are slidably connected with a plurality of sliding blocks which are evenly distributed in the circumferential direction; a clamping block is arranged between every two adjacent sliding blocks on the different fixing discs. A steel belt is limited through the clamping blocks, when the steel belt tends to be scattered towards the periphery due to the fact that the steel belt is pulled to be broken, the steel belt roll extrudes the clamping blocks to move, the clamping blocks buffer the breaking force of the steel belt roll, and in the storage process, the steel belt roll is clamped through the clamping blocks distributed in the circumferential direction, so that the steel belt roll is prevented from being broken. The probability that the steel strip coil is broken is reduced, and therefore the using safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power battery, in particular to a production equipment of power battery module fastening belt. BACKGROUND

[0002] With the rapid development of new energy automobile industry, the safety requirement of power battery module is increasingly improved, and the production quality of fastening belt as a key structural part of battery module directly affects the structural stability of battery pack. In the production and research process, the present application finds that the existing fastening belt has significant shortcomings in the winding and storage equipment of the fastening belt raw material (usually steel strip roll). The fastening belt raw material is a slender steel strip, and needs to be wound and unwound during use. If the steel strip is broken due to its insufficient strength, excessive tension or other factors, the wound steel strip roll will be broken, and the existing steel strip roll is generally only fixed at the outer end during storage and transportation, which will cause uneven stress distribution around the steel strip roll. Once the steel strip roll is bumped during transportation, the internal stress of the steel strip roll will be excited, which will cause the steel strip roll to break and spread around, easily scratching and damaging the operator, and affecting the safety of the fastening belt production process. SUMMARY

[0003] In order to overcome the shortcomings pointed out in the background, the present application provides a production equipment of power battery module fastening belt.

[0004] The technical implementation of the present application is: a production equipment of power battery module fastening belt, comprising a first motor mounted on an outer shell, an output shaft of the first motor being fixedly connected with a rotating shaft rotatably connected with the outer shell, the rotating shaft being rotatably connected with two fixed discs symmetrically distributed and fixedly connected with the outer shell, the fixed discs being slidably connected with a plurality of sliding blocks uniformly distributed in the circumferential direction, and a clamping block being provided between adjacent two sliding blocks on different fixed discs.

[0005] As a preferred, a first elastic member is provided between the sliding block and the adjacent fixed disc.

[0006] As a preferred, the elastic coefficients of all the first elastic members increase in turn along the circumferential direction from the upper side of the first elastic member.

[0007] As a preferred, a clamping belt is provided in the upper clamping block, a second motor is mounted on the upper clamping block, an output shaft of the second motor is fixedly connected with a gear, the clamping block is slidably connected with two center-symmetrically distributed racks, the two racks are meshed with adjacent gears, and the two ends of the clamping belt are fixedly connected with adjacent racks.

[0008] As preferred, the clamping belt is fixed with a flexible pad.

[0009] As preferred, the flexible pad is provided with a rough surface towards the side adjacent to the clamping block.

[0010] As preferred, the upper clamping block is rotatably connected with two adjacent sliding blocks, and the rest of the clamping blocks are fixedly connected with two adjacent sliding blocks, one of the upper sliding blocks is provided with a third motor, and the output shaft of the third motor is fixedly connected with the adjacent clamping block.

[0011] As preferred, the upper clamping block is fixedly connected with a pressing block.

[0012] As preferred, the shell is provided with a fourth motor, the output shaft of the fourth motor is fixedly connected with a screw telescopic rod, the telescopic part of the screw telescopic rod is fixedly connected with a push plate, the push plate slides on two fixed discs, the two ends of the first elastic member close to the push plate are fixedly connected with the adjacent sliding block and the push plate respectively, the two ends of the rest of the first elastic member are fixedly connected with the adjacent sliding block and the adjacent fixed disc respectively, and the push plate is used to push the adjacent two first elastic members.

[0013] As preferred, the fixed part of the screw telescopic rod is fixedly connected with a rotating ring, the rotating ring is provided with a plurality of limiting blocks distributed in a circumferential direction, the fixed disc is slidingly connected with an extrusion frame, the extrusion frame is provided with a limiting pin, all the limiting blocks are used to extrude the two limiting pins in turn, and the second elastic member is fixedly connected between the two extrusion frames.

[0014] The present application has the following advantages: the present application limits the steel belt through the clamping block, when the steel belt is broken due to tension, the steel belt roll moves to extrude the clamping block, the clamping block buffers the force of the steel belt roll collapse, and during storage, the steel belt roll is clamped through the circumferentially distributed clamping blocks to reduce the probability of the steel belt roll collapse, thereby improving the safety of the device, during the winding of the steel belt, the compression amount of all the first elastic members decreases in turn along the rotation direction of the winding of the steel belt, so that the steel belt is gradually curved towards the axis of the rotating shaft from the upper side along the rotation direction of the winding, thereby reducing the probability of the steel belt collapse due to sudden bending during winding, and further improving the safety of the steel belt during winding, the rough surface of the flexible pad is used to press the steel strip, thereby reducing the probability of the displacement of the outer end of the steel belt, and the pressing block is used to press the area near the outer end of the steel strip towards the direction of the axis of the rotating shaft, so that the outer end of the steel strip is raised away from the axis of the rotating shaft, thereby reducing the probability of the outer end of the steel belt popping out, and further ensuring the stability of the storage of the steel belt roll. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a sectional view of the three-dimensional structure of the fixing disc of the present application; Figure 3 is a schematic view of the three-dimensional structure of the pressing block of the present application; Figure 4 is a schematic view of the three-dimensional structure of the clamping belt of the present application; Figure 5 is a schematic view of the three-dimensional structure of the screw telescopic rod of the present application; Figure 6 is a schematic view of the three-dimensional structure of the rotating ring and the extrusion frame of the present application.

[0016] The labels of the components in the drawings are as follows: 1: housing, 2: first motor, 3: rotating shaft, 301-steel strip roll, 4: fixing disc, 5: sliding block, 6: clamping block, 7: first elastic member, 8: clamping belt, 9: second motor, 10: gear, 11: rack, 12: flexible pad, 13: third motor, 14: pressing block, 15: fourth motor, 16: screw telescopic rod, 17: push plate, 18: rotating ring, 1801: limiting block, 19: extrusion frame, 1901: limiting pin, 20: second elastic member. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application will be further described below.

[0018] Example 1

[0019] In the process of winding the steel strip by the existing fastening belt raw material winding equipment, if the steel strip is broken due to factors such as not meeting the standard of its own strength, excessive tension, etc., the wound steel strip roll will be broken and scattered, which will easily scratch and injure the operator, and affect the safety of the fastening belt production process.

[0020] A kind of power battery module fastening belt production equipment, as shown in Figures 1-3 Fig. 1, comprising first motor 2 installed in housing 1, housing 1 is provided with control terminal, first motor 2 is electrically connected with control terminal, the output shaft of first motor 2 is fixedly connected with rotating shaft 3 rotationally connected with housing 1, when producing fastening belt, one end of fastening belt raw material (i.e. steel strip) is fixed on rotating shaft 3 by screw, the output shaft of first motor 2 is used to drive rotating shaft 3 to rotate, so that the steel strip is wound on rotating shaft 3, and the steel strip is wound on rotating shaft 3 in the form of a roll. Figure 1The main view is the reference of the rotating direction. When the output shaft of the first motor 2 drives the rotating shaft 3 to rotate counterclockwise, the rotating shaft 3 winds the steel strip, and the steel strip gradually forms a steel strip roll 301 wound on the rotating shaft 3. When the output shaft of the first motor 2 drives the rotating shaft 3 to rotate clockwise, the rotating shaft 3 unwinds the steel strip. The rotating shaft 3 is rotationally connected to two fixed discs 4 that are symmetrically distributed front and back and are fixed to the shell 1. The fixed disc 4 is slidingly connected to a plurality of sliding blocks 5 that are uniformly distributed in the circumferential direction. In the figure, the number of sliding blocks 5 on the same fixed disc 4 is four as an example. A clamping block 6 is arranged between the adjacent two sliding blocks 5 on different fixed discs 4. In this embodiment, the clamping block 6 is fixed to the adjacent two sliding blocks 5. The upper clamping block 6 presses the steel strip during winding and unwinding by its own gravity. A first elastic member 7 is arranged between the sliding block 5 and the adjacent fixed disc 4. In this embodiment, the first elastic member 7 is a compression spring. The two ends of the first elastic member 7 are fixed to the adjacent sliding block 5 and the adjacent fixed disc 4, respectively. The elastic coefficients of all first elastic members 7 gradually increase in the counterclockwise direction from the upper first elastic member 7. The elastic coefficient of the upper first elastic member 7 is the smallest, and the elastic coefficient of the right first elastic member 7 is the largest.

[0021] The specific working principle is as follows: During the use of the device to wind the fastening belt raw material (i.e. the steel strip), the operator fixes one end of the steel strip to the rotating shaft 3 and makes the part of the steel strip near the rotating shaft 3 located below the upper clamping block 6. Then the operator starts the first motor 2 through the control terminal, and the output shaft of the first motor 2 drives the rotating shaft 3 to rotate counterclockwise. The rotating shaft 3 winds the steel strip (during the winding process of the steel strip, the diameter of the steel strip roll 301 gradually increases, the steel strip roll 301 presses and moves the clamping block 6, the clamping block 6 drives the sliding block 5 to move, and the first elastic member 7 is gradually compressed). When the steel strip needs to be used, the output shaft of the first motor 2 drives the rotating shaft 3 to rotate clockwise through the control terminal, so that the steel strip is unwound (during the unwinding process of the steel strip, the diameter of the steel strip roll 301 gradually decreases, the clamping block 6 moves to the axis of the rotating shaft 3, the clamping block 6 drives the sliding block 5 to move, and the first elastic member 7 gradually rebounds).

[0022] In the process of winding and unwinding the steel strip, the upper clamping block 6 is pressed against the steel strip under the influence of its own gravity, the left and right clamping blocks 6 and the lower clamping block 6 block the steel strip, if the steel strip is pulled and broken, the clamping block 6 limits the steel strip to reduce the probability of the wound steel strip coil 301 collapsing, and when the steel strip breaks and the steel strip coil 301 tends to spread out, the steel strip coil 301 presses the clamping block 6 to move, the clamping block 6 drives the sliding block 5 to move, so that the first elastic member 7 is gradually compressed (in the process of winding the steel strip coil 301, all the first elastic members 7 are in a force storage compression state, the steel strip coil 301 is clamped by the circumferentially distributed clamping blocks 6 to reduce the probability of the steel strip coil 301 collapsing and improve the safety of the steel strip coil 301 storage), the force of the steel strip coil 301 collapsing is buffered, thereby improving the safety of the device.

[0023] In the process of winding the steel strip, since the upper first elastic member 7 has the smallest elastic coefficient, and the elastic coefficients of all the first elastic members 7 gradually increase in the counterclockwise direction, the upper first elastic member 7 is compressed to the greatest extent, and the compression degrees of all the first elastic members 7 gradually decrease in the counterclockwise direction, so that the steel strip gradually bends toward the axis of the rotating shaft 3 from the upper side in the counterclockwise direction, reducing the probability of the steel strip collapsing due to sudden bending when winding, thereby improving the safety of the steel strip when winding.

[0024] When the steel strip is wound or unwound, the operator turns off the first motor 2 through the control terminal.

[0025] Embodiment 2

[0026] Based on embodiment 1, as shown in Figure 4 the upper clamping block 6 is provided with a clamping belt 8, the upper clamping block 6 is provided with a second motor 9 electrically connected with the control terminal, the output shaft of the second motor 9 is fixedly connected with a gear 10, the clamping block 6 is slidably connected with two center-symmetrically distributed racks 11, the two racks 11 are engaged with the adjacent gears 10, and the two ends of the clamping belt 8 are fixedly connected with the adjacent racks 11. When the steel strip needs to be wound, the steel strip is inserted between the clamping block 6 and the clamping belt 8, and when the steel strip is wound, if the steel strip needs to be fixed, the second motor 9 is turned on through the control terminal, the output shaft of the second motor 9 drives the two racks 11 to move oppositely through the gear 10, so that the two ends of the clamping belt 8 move, the clamping belt 8 is fixedly connected with a flexible pad 12, the upper side of the flexible pad 12 is provided with a rough surface to increase the resistance of the flexible pad 12 to the movement of the steel strip, the clamping belt 8 drives the flexible pad 12 to move during the movement process, so that the rough surface on the upper side of the flexible pad 12 presses the steel strip, reducing the probability of displacement of the outer end of the steel strip, thereby ensuring the stability of the storage of the steel strip coil 301, and when the flexible pad 12 presses the steel strip, the operator turns off the second motor 9 through the control terminal.

[0027] Example 3

[0028] Based on Example 2, such as Figures 3-5 As shown, in the above embodiment, the clamping block 6 is fixedly connected to two adjacent sliding blocks 5. In this embodiment, the upper clamping block 6 is rotatably connected to two adjacent sliding blocks 5, and the remaining clamping blocks 6 are fixedly connected to two adjacent sliding blocks 5. The upper rear sliding block 5 is equipped with a third motor 13 electrically connected to the control terminal. The output shaft of the third motor 13 is fixedly connected to the adjacent clamping block 6. When the steel strip is wound up and the flexible pad 12 presses the outer end of the steel strip, the operator starts the third motor 13 through the control terminal. The output shaft of the third motor 13... Used to drive the adjacent clamping block 6 to rotate, the upper clamping block 6 has a pressure block 14 fixedly connected to its left side. When the upper clamping block 6 rotates counterclockwise, the upper clamping block 6 drives the pressure block 14 to rotate. The pressure block 14 presses the outer end of the steel strip coil, causing the pressure block 14 to press the area near the outer end of the steel strip towards the axis of the rotating shaft 3. The outer end of the steel strip tilts away from the axis of the rotating shaft 3, reducing the probability of the outer end of the steel strip popping out, thereby ensuring the stability of the steel strip coil 301 during storage. Finally, the third motor 13 is turned off through the control terminal.

[0029] Example 4

[0030] Based on Example 3, such as Figure 1 , Figure 5 and Figure 6 As shown, the outer casing 1 is equipped with a fourth motor 15 electrically connected to the control terminal. A threaded telescopic rod 16 is fixedly connected to the output shaft of the fourth motor 15. A push plate 17 is fixedly connected to the telescopic part of the threaded telescopic rod 16. Figure 1 The right view is the reference for the direction of rotation. When the fixed part of the threaded telescopic rod 16 rotates clockwise, the telescopic part of the threaded telescopic rod 16 extends to the left. When the fixed part of the threaded telescopic rod 16 rotates counterclockwise, the telescopic part of the threaded telescopic rod 16 retracts to the right. The push plate 17 slides on the two fixed disks 4. In the above embodiment, the two ends of the first elastic member 7 are respectively fixed to the adjacent sliding block 5 and the adjacent fixed disk 4. In this embodiment, the two ends of the right first elastic member 7 are respectively fixed to the adjacent sliding block 5 and the push plate 17, and the two ends of the other first elastic members 7 are respectively fixed to the adjacent sliding block 5 and the adjacent fixed disk 4. The push plate 17 is used to push the two adjacent first elastic members 7 so that the two adjacent first elastic members 7 are compressed.

[0031] like Figure 5 and Figure 6As shown, the fixed part of the threaded telescopic rod 16 is fixedly connected with a rotating ring 18, the rotating ring 18 is provided with a plurality of limiting blocks 1801 distributed in a circumferential direction, when the fixed part of the threaded telescopic rod 16 rotates, the fixed part of the threaded telescopic rod 16 drives the rotating ring 18 to rotate, so that all the limiting blocks 1801 rotate, the fixed disc 4 is slidingly connected with an extrusion frame 19, the extrusion frame 19 is provided with a limiting pin 1901, in the process of rotation of all the limiting blocks 1801, all the limiting blocks 1801 extrude the two limiting pins 1901 in turn, so that the two limiting pins 1901 move away from each other, the two extrusion frames 19 move away from each other, the second elastic element 20 is fixedly connected between the two extrusion frames 19, wherein the second elastic element 20 is a tension spring, in the process of moving away from each other of the two extrusion frames 19, the second elastic element 20 is stretched, when the limiting blocks 1801 rotate to lose contact with the adjacent limiting pins 1901, the second elastic element 20 rebounds, the two limiting pins 1901 move towards each other, so that the two extrusion frames 19 move towards each other, and the two extrusion frames 19 clamp the steel strip coil in the winding process.

[0032] The specific working principle is as follows: In the process of winding the steel strip, the operator starts the fourth motor 15 through the control terminal, so that the output shaft of the fourth motor 15 drives the fixed part of the threaded telescopic rod 16 to rotate clockwise, so that the telescopic part of the threaded telescopic rod 16 extends to the left to the limit state, the telescopic part of the threaded telescopic rod 16 drives the push plate 17 to move to the left, so that the right two first elastic elements 7 are compressed, increasing the resistance of the right two sliding blocks 5 to move to the right, thereby increasing the resistance of the right clamping block 6 to move to the right, with the increase of the diameter of the steel strip coil in the winding process, the right two sliding blocks 5 and the right clamping block 6 cannot move to the right any more, and the right two first elastic elements 7 are compressed to the limit state, at this time, the operator controls the output shaft of the fourth motor 15 to reverse through the control terminal, and the output shaft of the fourth motor 15 drives the fixed part of the threaded telescopic rod 16 to rotate counterclockwise, so that the telescopic part of the threaded telescopic rod 16 contracts to the right, and the telescopic part of the threaded telescopic rod 16 drives the push plate 17 to move to the right.

[0033] In the process of moving the push plate 17 to the right, the rotating shaft 3 gradually winds the steel strip, the right end of the right two first elastic elements 7 gradually moves to the right, so that the first elastic element 7 always maintains a tense state, increases the resistance of the right two sliding blocks 5 and the right clamping block 6 to move to the right, thereby increasing the stability of the steel strip coil after winding.

[0034] In the process of rotating the fixed part of the threaded telescopic rod 16, the fixed part of the threaded telescopic rod 16 drives the rotating ring 18 to rotate, the rotating ring 18 drives all the limiting blocks 1801 thereon to rotate, all the limiting blocks 1801 extrude the two limiting pins 1901 in turn, when the limiting blocks 1801 extrude the adjacent limiting pins 1901, the two limiting pins 1901 move away, the second elastic member 20 is stretched, when the limiting blocks 1801 rotate to lose contact with the adjacent limiting pins 1901, the second elastic member 20 rebounds, the two limiting pins 1901 move towards each other, repeat the above steps, with the rotation of the rotating ring 18, the two limiting pins 1901 reciprocate and move towards each other.

[0035] In the process of reciprocating and moving towards each other of the two limiting pins 1901, the two extrusion frames 19 reciprocate and move towards each other, the two extrusion frames 19 intermittently clamp the steel strip roll in the rolling process, so as to reduce the probability of dislocation of the steel strip roll in the rolling process and improve the stability of the steel strip roll rolling.

[0036] When the steel strip is rolled up, the operator closes the fourth motor 15 through the control terminal, and closes the device through the above steps.

[0037] To sum up, the above is only a preferred embodiment of the present application, not for limiting the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A production equipment for fastening straps of power battery modules, comprising a first motor (2) mounted on a housing (1), wherein the output shaft of the first motor (2) is fixedly connected to a rotating shaft (3) rotatably connected to the housing (1), characterized in that, The rotating shaft (3) is rotatably connected to two fixed disks (4) that are symmetrically distributed and fixed to the outer shell (1). The fixed disks (4) are slidably connected to a number of sliding blocks (5) that are evenly distributed in the circumference. A clamping block (6) is provided between two adjacent sliding blocks (5) on different fixed disks (4).

2. The production equipment for a power battery module fastening strap according to claim 1, characterized in that, A first elastic element (7) is provided between the sliding block (5) and the adjacent fixed disk (4).

3. The production equipment for a power battery module fastening strap according to claim 2, characterized in that, Starting from the first elastic element (7) on the upper side, the elastic coefficient of all the first elastic elements (7) increases sequentially along the circumferential direction.

4. The production equipment for a power battery module fastening strap according to claim 1, characterized in that the upper side... The clamping block (6) is provided with a clamping band (8). The upper clamping block (6) is equipped with a second motor (9). The output shaft of the second motor (9) is fixedly connected to a gear (10). The clamping block (6) is slidably connected to two centrally symmetrically distributed racks (11). Both racks (11) mesh with the adjacent gears (10). The two ends of the clamping band (8) are fixedly connected to the adjacent racks (11).

5. The production equipment for a power battery module fastening strap according to claim 4, characterized in that, The clamping band (8) is fixed with a flexible pad (12).

6. The production equipment for a power battery module fastening strap according to claim 5, characterized in that, The flexible pad (12) has a rough surface on the side facing the adjacent clamping block (6).

7. A production equipment for a power battery module fastening strap according to claim 6, characterized in that the upper side... The clamping block (6) is rotatably connected to the two adjacent sliding blocks (5), and the remaining clamping blocks (6) are fixedly connected to the two adjacent sliding blocks (5). A third motor (13) is installed on one of the upper sliding blocks (5), and the output shaft of the third motor (13) is fixedly connected to the adjacent clamping block (6).

8. The production equipment for a power battery module fastening strap according to claim 7, characterized in that, The clamping block (6) on the upper side is fixedly connected to the pressure block (14).

9. A production equipment for a power battery module fastening strap according to claim 3, characterized in that, The outer casing (1) is equipped with a fourth motor (15), the output shaft of the fourth motor (15) is fixedly connected to a threaded telescopic rod (16), the telescopic part of the threaded telescopic rod (16) is fixedly connected to a push plate (17), the push plate (17) slides on the two fixed disks (4), the two ends of the first elastic element (7) near the push plate (17) are fixedly connected to the adjacent sliding block (5) and the push plate (17) respectively, the two ends of the remaining first elastic elements (7) are fixedly connected to the adjacent sliding block (5) and the adjacent fixed disk (4) respectively, and the push plate (17) is used to push the two adjacent first elastic elements (7).

10. A production equipment for a power battery module fastening band according to claim 9, characterized in that, The fixed part of the threaded telescopic rod (16) is fixedly connected to a rotating ring (18), the rotating ring (18) is provided with a plurality of circumferentially spaced limiting blocks (1801), the fixed disk (4) is slidably connected to a pressing frame (19), the pressing frame (19) is provided with a limiting pin (1901), all the limiting blocks (1801) are used to press the two limiting pins (1901) in sequence, and a second elastic element (20) is fixedly connected between the two pressing frames (19).

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