Power battery pack on-line hoisting device

Abstract

The invention discloses a power battery pack on-line lifting device which comprises a lifting appliance body framework (1), a first lifting claw mechanism is movably installed at one end of the lifting appliance body framework (1), a second lifting claw mechanism is movably installed at the other end of the lifting appliance body framework (1), and a mounting support (2) is fixedly arranged in the middle of the lifting appliance body framework (1). A first positioning pin (3) is fixedly arranged on the mounting bracket (2), a second positioning pin (4) is fixedly arranged at one end of the lifting appliance body framework (1), a first positioning seat (5) and a second positioning seat (6) are fixedly arranged on a battery pack falling station, the first positioning pin (3) is matched with the first positioning seat (5) in an inserting manner, and the second positioning pin (4) is matched with the second positioning seat (6) in an inserting manner. The power battery pack lifting and falling positioning device can meet the requirement for accurate positioning of lifting and falling of a power battery pack, and labor-saving operation during grabbing of lifting claws of the lifting appliance is achieved.

Description

Technical Field

[0001] The invention relates to a hoisting device, in particular to an online hoisting device for a power battery pack. Background Art

[0002] In the assembly workshop of new energy passenger vehicles, the power battery pack needs to be lifted from the material frame and transferred to the battery pack assembly conveyor line. During lifting and transfer, the initial drop position of the power battery pack on the conveyor line needs to be positioned to ensure that the drop position and angle meet the conveying requirements of the conveyor line. At the same time, during the drop process, it is convenient for operators to perform precise operations and avoid collisions with non-power battery pack bearing parts of the conveyor line.

[0003] The existing technical solution is to manually assemble the power battery pack and the vehicle chassis, which is not an automated assembly. There is no precise positioning requirement for the initial position of the power battery pack. The power battery pack can be placed in an approximate position during the lifting and transportation process. The lifting device has no auxiliary positioning device. The lifting claws of the lifting device are manually operated, which is labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide a power battery pack online hoisting device to solve the technical problems in the prior art. It can meet the requirements of precise positioning of the power battery pack during hoisting and placement, and realize labor-saving operation when the hoisting claw grabs the power battery pack.

[0005] The present invention provides an online lifting device for a power battery pack, comprising a lifting device body frame, a first lifting claw mechanism is movably mounted on one end of the lifting device body frame, a second lifting claw mechanism is movably mounted on the other end of the lifting device body frame, a mounting bracket is fixedly provided in the middle of the lifting device body frame, a first locating pin is fixedly provided on the mounting bracket, a second locating pin is fixedly provided at one end of the lifting device body frame, a first locating seat and a second locating seat are fixedly provided on a battery pack dropping station, the first locating pin is plug-fitted with the first locating seat, and the second locating pin is plug-fitted with the second locating seat.

[0006] In the aforementioned power battery pack online hoisting device, preferably, the hoist body frame is a rectangular frame welded by two first beams and two second beams, and the length of the two first beams is less than the length of the two second beams.

[0007] In the aforementioned power battery pack online lifting device, preferably, the first lifting claw mechanism is fixedly provided on one of the first crossbeams, and the second lifting claw mechanism is fixedly provided on another of the first crossbeams, the first lifting claw mechanism and the second lifting claw mechanism are completely identical in structure, and the first lifting claw mechanism and the second lifting claw mechanism are symmetrically arranged.

[0008] In the aforementioned power battery pack online lifting device, preferably, the first lifting claw mechanism and the second lifting claw mechanism both include a telescopic cylinder and two lifting claws, a guide rod is vertically arranged at each end of the first crossbeam, and a lifting claw is slidably mounted on each of the two guide rods, and the two lifting claws are fixedly connected by a lifting claw connecting rod, the telescopic cylinder is fixed on the first crossbeam, and the telescopic end of the telescopic cylinder is fixedly connected to the lifting claw connecting rod.

[0009] In the aforementioned power battery pack online hoisting device, preferably, a battery pack slot is formed at the lower end of the hoisting claw, and a rubber protective pad is fixed in the battery pack slot.

[0010] In the aforementioned power battery pack online hoisting device, preferably, the ends of the two guide rods are fixedly connected by a manual handrail, and a controller is installed on the manual handrail.

[0011] In the aforementioned power battery pack online hoisting device, preferably, two mounting rods are fixedly provided on the hoist body skeleton, the two mounting rods are located on both sides of the mounting bracket, and a support block is fixedly provided at the bottom of each of the two mounting rods.

[0012] Compared with the prior art, the present invention includes a sling body frame, a first lifting claw mechanism is movably mounted on one end of the sling body frame, a second lifting claw mechanism is movably mounted on the other end of the sling body frame, a mounting bracket is fixedly mounted in the middle of the sling body frame, a first positioning pin is fixedly mounted on the mounting bracket, a second positioning pin is fixedly mounted on one end of the sling body frame, a first positioning seat and a second positioning seat are fixedly mounted on the battery pack drop station, the first positioning pin is plugged in with the first positioning seat, and the second positioning pin is plugged in with the second positioning seat. The present invention cooperates with the first positioning pin and the first positioning seat, and the second positioning pin and the second positioning seat, so that the battery pack can be accurately aligned with the vehicle body on the station during the descent process, thereby achieving rapid assembly and effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0014] Figure 2 It is a partial structural axonometric diagram of the present invention.

[0015] Explanation of the reference numerals: sling body frame 1, mounting bracket 2, first locating pin 3, second locating pin 4, first locating seat 5, second locating seat 6, first cross beam 7, second cross beam 8, telescopic cylinder 9, lifting claw 10, guide rod 11, lifting claw connecting rod 12, battery pack slot 13, rubber protective pad 14, manual handrail 15, controller 16, mounting rod 17, support block 18, lifting ring 19. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0017] Embodiments of the present invention: Figure 1 and Figure 2 As shown, a power battery pack online lifting device includes a lifting device body frame 1, one end of the lifting device body frame 1 is movably mounted with a first lifting claw mechanism, the other end of the lifting device body frame 1 is movably mounted with a second lifting claw mechanism, a mounting bracket 2 is fixedly provided in the middle of the lifting device body frame 1, a first positioning pin 3 is fixedly provided on the mounting bracket 2, a second positioning pin 4 is fixedly provided at one end of the lifting device body frame 1, a first positioning seat 5 and a second positioning seat 6 are fixedly provided on the battery pack dropping station, the first positioning pin 3 is plug-fitted with the first positioning seat 5, and the second positioning pin 4 is plug-fitted with the second positioning seat 6.

[0018] By cooperating the first positioning pin 3 with the first positioning seat 5 and the second positioning pin 4 with the second positioning seat 6, the battery pack can be accurately aligned with the vehicle body on the battery pack drop-down station during the descent process, without the need for manual alignment by workers, thereby achieving rapid installation of the battery pack.

[0019] In this embodiment, the first positioning seat 5 and the second positioning seat 6 are fixed on the ground of the battery pack drop-down station, and their positions do not change after being fixed. In order to improve the success rate of docking with the first positioning pin 3 and the second positioning pin 4, the upper ends of the first positioning seat 5 and the second positioning seat 6 are designed as a bell-mouth structure, so that if the positions of the first positioning pin 3 and the second positioning pin 4 are slightly offset, the positions can be corrected through the bell-mouth structure, so that the first positioning pin 3 can be smoothly inserted into the first positioning seat 5, and the second positioning pin 4 can be smoothly inserted into the second positioning seat 6.

[0020] In a specific implementation, the sling body frame 1 is a rectangular frame formed by welding two first cross beams 7 and two second cross beams 8 , and the length of the two first cross beams 7 is less than the length of the two second cross beams 8 .

[0021] The function of the sling body frame 1 is to provide a mounting carrier for the first lifting claw mechanism, the second lifting claw mechanism, the mounting bracket 2 and the second positioning pin 4. The sling body frame 1 needs to have sufficient structural strength.

[0022] The mounting bracket 2 is a rectangular frame. The main function of the mounting bracket 2 is to install the first positioning pin 3. One end of the mounting bracket 2 is fixedly connected to one of the second beams 8, the middle of the mounting bracket 2 is fixedly connected to the other second beam 8, and the other end of the mounting bracket 2 extends to the outside of the sling body frame 1. The first positioning pin 3 is a cylindrical structure, and its lower end is conical. The upper end of the first positioning pin 3 is fixed by a connecting seat.

[0023] The second positioning pin 4 is also a cylindrical structure with a conical lower end. The second positioning pin 4 is fixed to the first crossbeam 7 through a connecting seat.

[0024] Furthermore, a first lifting claw mechanism is fixedly provided on one of the first cross beams 7, and a second lifting claw mechanism is fixedly provided on the other first cross beam 7. The first lifting claw mechanism and the second lifting claw mechanism have completely the same structure, and the first lifting claw mechanism and the second lifting claw mechanism are symmetrically arranged.

[0025] The first lifting claw mechanism and the second lifting claw mechanism both include a telescopic cylinder 9 and two lifting claws 10. A guide rod 11 is vertically arranged at both ends of the first crossbeam 7. A lifting claw 10 is slidably mounted on each of the two guide rods 11. The two lifting claws 10 are fixedly connected by a lifting claw connecting rod 12. The telescopic cylinder 9 is fixedly arranged on the first crossbeam 7, and the telescopic end of the telescopic cylinder 9 is fixedly connected to the lifting claw connecting rod 12.

[0026] The guide rod 11 is parallel to the second crossbeam 8 . The guide rod 11 is used to install the lifting claw 10 . The lifting claw 10 can slide on the guide rod 11 . The telescopic cylinder 9 is used to drive the lifting claw 10 to move, so as to clamp or release the battery pack through the lifting claw 10 .

[0027] Furthermore, the hanging claw 10 is a rectangular block, and a battery pack slot 13 is formed at the lower end of the hanging claw 10 . The opening of the battery pack slot 13 faces the horizontal direction, and a rubber protective pad 14 is fixed in the battery pack slot 13 .

[0028] The tops of the two lifting claws 10 of the first lifting claw mechanism and the tops of the two lifting claws 10 of the second lifting claw mechanism are both threadedly connected with lifting rings 19, and the lifting rings 19 are used to connect with the electric hoist. The electric hoist can realize the lifting and horizontal movement of the power battery pack online lifting device.

[0029] The rubber protection pad 14 can effectively protect the battery pack and prevent the battery pack from being deformed by the battery pack clamping slot 13 on the hanging claw 10 .

[0030] Furthermore, the ends of the two guide rods 11 are fixedly connected via a manual handrail 15 , and a controller 16 is mounted on the manual handrail 15 .

[0031] The controller 16 is used to control the extension and contraction of the telescopic cylinder 9. Both the first lifting claw mechanism and the second lifting claw mechanism are provided with the controller 16. Since the size of the power battery pack on-line lifting device is relatively large, two staff members need to stand at both ends to control the controllers 16 on the first lifting claw mechanism and the second lifting claw mechanism respectively, so as to ensure that the lifting claw 10 clamps the battery pack without damaging the battery pack.

[0032] The first lifting claw mechanism and the second lifting claw mechanism of the present invention are electrically controlled, replacing the manual clamping mechanism in the prior art, saving time and effort, and effectively reducing the labor intensity of the staff.

[0033] Furthermore, two mounting rods 17 are fixedly provided on the sling body frame 1 , and the two mounting rods 17 are located on both sides of the mounting bracket 2 , and a supporting block 18 is fixedly provided at the bottom of each of the two mounting rods 17 .

[0034] The support block 18 is made of rubber. When the power battery pack online hoisting device moves to the top of the power battery pack and falls to grab the power battery pack, the support block 18 first contacts the upper surface of the power battery pack to support the hoisting device so that the hoist body skeleton 1 will not collide with the power battery pack. At the same time, the support block 18 also plays a role in vertical positioning, so that the four lifting claws 10 can be closed on the side of the power battery pack, and the power battery pack can be better inserted into the battery pack slot 13 on the lifting claw 10.

[0035] The working principle of the present invention is as follows: during operation, the electric hoist is operated to move the online lifting device of the power battery pack to directly above the power battery pack, and then the electric hoist is operated to lower the online lifting device of the power battery pack until the support block 18 contacts the top surface of the power battery pack. At this time, two workers respectively operate the controllers 16 on the first lifting claw mechanism and the second lifting claw mechanism, and the two controllers 16 respectively control the telescopic cylinders 9 on the first lifting claw mechanism and the second lifting claw mechanism to retract until the two ends of the power battery pack are inserted into the battery pack slots 13 on the lifting claws 10. At this time, the power battery pack is connected to the sling body frame 1 as a whole through four lifting claws 10, and is lifted and moved to the battery pack placement station by an electric hoist, and then the power battery pack online lifting device is lowered. During the unloading project, two workers hold the manual handrails 15 on the first lifting claw mechanism and the second lifting claw mechanism respectively, to assist the first locating pin 3 to be aligned and inserted with the first locating seat 5, and the second locating pin 4 to be aligned and inserted with the second locating seat 6. After falling into place, the battery pack is accurately docked with the vehicle body, and the two workers control the extension of the telescopic cylinder 9 through the controller 16, and the two lifting claws 10 on the first lifting claw mechanism and the two lifting claws 10 on the second lifting claw mechanism move away from each other and release the battery pack.

[0036] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A power battery pack online hoisting device, comprising a hoist body frame (1), characterized in that: A first lifting claw mechanism is movably mounted on one end of the sling body frame (1), and a second lifting claw mechanism is movably mounted on the other end of the sling body frame (1). A mounting bracket (2) is fixedly mounted in the middle of the sling body frame (1), and a first positioning pin (3) is fixedly mounted on the mounting bracket (2). A second positioning pin (4) is fixedly mounted on one end of the sling body frame (1), and a first positioning seat (5) and a second positioning seat (6) are fixedly mounted on the battery pack placement station. The first positioning pin (3) is plug-fitted with the first positioning seat (5), and the second positioning pin (4) is plug-fitted with the second positioning seat (6).

2. The power battery pack online hoisting device according to claim 1, characterized in that: The sling body frame (1) is a rectangular frame formed by welding two first cross beams (7) and two second cross beams (8), and the length of the two first cross beams (7) is smaller than the length of the two second cross beams (8).

3. The power battery pack online hoisting device according to claim 2, characterized in that: The first lifting claw mechanism is fixedly arranged on one of the first cross beams (7), and the second lifting claw mechanism is fixedly arranged on the other first cross beam (7); the first lifting claw mechanism and the second lifting claw mechanism are completely identical in structure, and the first lifting claw mechanism and the second lifting claw mechanism are symmetrically arranged.

4. The power battery pack online hoisting device according to claim 3, characterized in that: The first lifting claw mechanism and the second lifting claw mechanism both comprise a telescopic cylinder (9) and two lifting claws (10); a guide rod (11) is vertically arranged at each end of the first crossbeam (7); a lifting claw (10) is slidably mounted on each of the two guide rods (11); the two lifting claws (10) are fixedly connected via a lifting claw connecting rod (12); the telescopic cylinder (9) is fixedly arranged on the first crossbeam (7); and the telescopic end of the telescopic cylinder (9) is fixedly connected to the lifting claw connecting rod (12).

5. The power battery pack online hoisting device according to claim 4, characterized in that: A battery pack slot (13) is formed at the lower end of the hanging claw (10), and a rubber protection pad (14) is fixedly arranged in the battery pack slot (13).

6. The power battery pack online hoisting device according to claim 4, characterized in that: The ends of the two guide rods (11) are fixedly connected via a manual handrail (15), and a controller (16) is mounted on the manual handrail (15).

7. The power battery pack online hoisting device according to claim 2, characterized in that: Two mounting rods (17) are fixedly disposed on the sling body frame (1), the two mounting rods (17) are located on both sides of the mounting bracket (2), and a support block (18) is fixedly disposed at the bottom of each of the two mounting rods (17).

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