Battery box battery replacing device

Abstract

The invention relates to a battery box battery replacing device which comprises a stand column, a lifting mechanism running on the stand column up and down and a grabbing device installed on the lifting mechanism, and the grabbing device comprises a hanging frame and a grabbing mechanism running in the hanging frame in a sliding mode. The grabbing mechanism comprises a machine shell, a first fork plate, a second fork plate and a grabbing driving mechanism, wherein the first fork plate and the second fork plate are installed on the upper portion and the lower portion of the machine shell respectively, and the grabbing driving mechanism drives the first fork plate and the second fork plate to move up and down. According to the battery changing device for the battery box, the problems that the reserved space of a charging bin position is large and the rigidity of a mechanical arm needs to be high are effectively solved, and the use cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of electric vehicle charging and battery replacement, and in particular to a battery box battery replacement device. Background Art

[0002] With the development of new energy vehicles, electric vehicles have an increasingly urgent demand for electricity. Battery boxes provide them with power. In order to solve the endurance problem, battery swap stations for electric vehicles have emerged. When the battery needs to be replaced, the battery swap robot needs to remove the battery box to be charged from the vehicle and place it in the station for charging. Then the fully charged battery box is taken out of the station and placed on the vehicle to be replaced to complete the battery replacement.

[0003] In the prior art, when the robot's grasping mechanism grasps the battery box, a hoisting and lifting mechanism or a lead screw is generally used to drive the grasping mechanism to lift and lower the battery box, thereby lifting or lowering the battery box. The grasping mechanisms generally used at present must be placed on the top of the battery box, or the overall height of the grasping mechanism must be greater than the height of the battery box when grasping the battery box, resulting in a large space between the lower surface of the upper layer of the battery box charging position and the top of the lower layer of the battery box. Secondly, the entire box is hoisted, or the structure of the robotic arm as a cantilever beam has high requirements on the rigidity of the robotic arm. Summary of the invention

[0004] In view of the above, it is necessary to provide a battery box replacement device that occupies a small space, has low cost, and solves the problem of requiring a large space to be reserved and requiring high rigidity of the robotic arm.

[0005] To this end, the present disclosure provides a battery box replacement device, including a column, a lifting mechanism running up and down on the column, and a grabbing device installed on the lifting mechanism, the grabbing device includes a hanging frame and a grabbing mechanism sliding in the hanging frame, the grabbing mechanism includes a casing, a first fork plate and a second fork plate respectively installed on the upper and lower parts of the casing, and a grabbing drive mechanism that drives the first fork plate and the second fork plate to move up and down.

[0006] According to the battery box replacement device, the grabbing drive mechanism includes a fixed seat, a guide rod, a sliding seat sliding on the guide rod, and a driving assembly driving the sliding seat to operate. The fixed seat is respectively installed on the upper and lower parts of the casing, the two ends of the guide rod are respectively installed on the fixed seat, and the sliding seat is respectively fixedly installed on the first fork plate and the second fork plate.

[0007] According to the battery box replacement device, the driving component is an electric push rod, a cylinder or a screw driving component.

[0008] According to the battery box replacement device, a thrust seat is provided at the front end of the casing.

[0009] According to the battery box battery replacement device, the thrust seat includes a baffle, a push rod passing through the baffle, and a return spring sleeved outside the push rod.

[0010] According to the battery box replacement device, the gripping device also includes a telescopic driving mechanism for driving the gripping mechanism to operate.

[0011] According to the battery box replacement device, the telescopic driving mechanism includes a rack installed on the hanging frame, a gear installed on the grabbing mechanism, and a telescopic motor that drives the gear to rotate.

[0012] According to the battery box battery replacement device, the telescopic driving mechanism also includes a guiding mechanism, which includes a guide rail arranged on the hanging frame and a slider arranged on the bottom of the casing, and the slider slides on the guide rail.

[0013] According to the battery box replacement device, the grabbing device also includes a steering drive mechanism for driving the hanging frame to rotate, the steering drive mechanism includes a rotating motor, a first gear transmission-connected to the output end of the rotating motor, and a second gear installed between the top of the hanging frame and the lifting mechanism, the first gear meshing with the second gear.

[0014] According to the battery box replacement device, the lifting mechanism includes a lifting frame, and the hanging frame is suspended on the lifting frame.

[0015] Compared with the prior art, the above-mentioned battery box replacement device uses the first fork plate and the second fork plate to grab the battery box into the hanging frame and move it in the hanging frame to achieve charging and replacement, avoiding the use of a longer manipulator to grab the battery box, which not only reduces the occupied space, but also reduces the stiffness requirements of the manipulator arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation method, the drawings required for use in the description of the implementation method will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the battery box battery replacement device of the present invention.

[0018] Figure 2 It is a schematic diagram of the first angle structure of the grabbing mechanism of the battery box replacement device of the present invention.

[0019] Figure 3 It is a second angle structural diagram of the grabbing mechanism of the battery box battery replacement device of the present invention.

[0020] Figure 4 It is a cross-sectional view of the grabbing mechanism of the battery box replacement device of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the battery box replacement device of the present invention in the grasping state;

[0022] Figure 6 It is a schematic diagram of the side structure of the battery box replacement device of the present invention in the grabbing state.

[0023] Main component symbols

[0024] 1-column; 2-lifting mechanism; 3-hanging frame; 4-grasping mechanism; 5-housing; 6-first fork plate; 7-second fork plate; 8-battery box;

[0025] 9-fixed fork plate; 10-fixed seat; 11-guide rod; 12-sliding seat; 13-electric push rod; 14-laser rangefinder; 15-thrust seat;

[0026] 16- baffle; 17- push rod; 18- return spring; 19- rack; 20- telescopic motor; 21- guide rail; 22- slider; 23- rotating motor;

[0027] 24- first gear; 25- second gear.

[0028] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] In each embodiment, for the convenience of description and not to limit the present invention, the term "connection" used in the patent application specification and claims of the present invention is not limited to physical or mechanical connection, but may include electrical connection, whether direct or indirect. "Up", "down", "below", "left", "right", etc. are only used to indicate relative position relationship. When the absolute position of the described object changes, the relative position relationship also changes accordingly.

[0032] like Figures 1 to 6 As shown, a battery box replacement device includes a column 1, a lifting mechanism 2 running up and down on the column 1, and a grabbing device installed on the lifting mechanism 2, the grabbing device includes a hanging frame 3 and a grabbing mechanism 4 slidingly running in the hanging frame 3, the grabbing mechanism 4 includes a housing 5, a first fork plate 6 and a second fork plate 7 respectively installed at the upper and lower parts of the housing 5, and a grabbing driving mechanism driving the first fork plate 6 and the second fork plate 7 to run up and down. A fixed fork plate 9 adapted to the first fork plate 6 and the second fork plate 7 is provided on the outside of the battery box 8.

[0033] The grab driving mechanism includes a fixed seat 10, a guide rod 11, a sliding seat 12 slidingly running on the guide rod 11, and a driving component driving the sliding seat 12 to run. The fixed seat 10 is respectively installed at the upper and lower parts of the housing 5, the two ends of the guide rod 11 are respectively installed on the fixed seat 10, and the sliding seat 12 is respectively fixedly installed on the first fork plate 6 and the second fork plate 7. The driving component is an electric push rod, a cylinder or a screw driving component. Of course, as a specific embodiment, the fixed seat 10 can be a bearing seat, the sliding seat 12 is a linear bearing, the guide rod 11 is an optical axis, and the driving component is an electric push rod 13.

[0034] The housing 5 is provided with a laser rangefinder 14 for identifying the distance between the grabbing mechanism 4 and the battery box 8 .

[0035] A thrust seat 15 is provided at the front end of the housing 5. The thrust seat 15 includes a baffle 16, a push rod 17 passing through the baffle 16, and a return spring 18 sleeved outside the push rod 17. The thrust seat 15 is fixed to the front surface of the housing 5 by bolts, and will provide pressure and thrust during operation.

[0036] The grabbing device further comprises a telescopic driving mechanism for driving the grabbing mechanism 4 to operate.

[0037] The telescopic driving mechanism comprises a rack 19 mounted on the hanging frame 3, a gear mounted on the grabbing mechanism 4 and a telescopic motor 20 for driving the gear to rotate.

[0038] The telescopic driving mechanism further includes a guiding mechanism, which includes a guide rail 21 arranged on the hanging frame 3 and a slider 22 arranged at the bottom of the housing 5 , and the slider 22 slides on the guide rail 21 .

[0039] The grabbing device also includes a steering drive mechanism for driving the hanging frame 3 to rotate. The steering drive mechanism includes a rotating motor 23, a first gear 24 that is transmission-connected to the output end of the rotating motor 23, and a second gear 25 installed between the top of the hanging frame 3 and the lifting mechanism 2. The first gear 24 is meshed with the second gear 25.

[0040] The lifting mechanism 2 comprises a lifting frame, and the hanging frame 3 is suspended on the lifting frame.

[0041] The column 1 is fixedly connected to the slide rail by bolts, and the travel motor provides travel power to the whole through chain transmission. The lifting mechanism is bound and connected to the column 1 through the slide rail, and the lifting motor drives the chain transmission to realize the up and down movement of the lifting mechanism 2. The top of the hanging frame 3 is fixedly connected to the rotary support plate of the lifting mechanism 2 by bolts, and the first gear 24 is driven to rotate by the rotating motor 23 to make the hanging frame 3 rotate. Among them, the travel motor, the lifting motor, and the telescopic motor 20 provide movement in the X, Y, and Z directions respectively. The rotating motor 23 is used to adjust the manipulator to adjust the battery box 8 to the corresponding direction of the other side after taking out the battery box 8.

[0042] Working principle: the column 1 and the lifting mechanism 2 run to the preset position, the grabbing mechanism 4 moves outward in the hanging frame 3 through the telescopic driving mechanism, and the first fork plate 6 and the second fork plate 7 are controlled to move by the electric push rod to grab the battery box 8 from the battery exchange position. After being grabbed, the battery box 8 is directly pulled into the hanging frame 3, and at the same time, the battery box 8 contacts the thrust seat 15 so that the thrust seat 15 is squeezed, and the hanging frame 3 is driven to rotate 180 degrees by the rotating motor 23, and then the battery box 8 is pushed into the battery exchange cart through the telescopic driving mechanism. The electric push rod telescopes and controls the first fork plate 6 and the second fork plate 7 to move on the guide rod 11 to release the battery box 8, and the battery box 8 is separated from the grabbing mechanism 4 due to the action of the thrust seat 15.

[0043] In the several specific embodiments provided by the present invention, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

[0044] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A battery box replacement device, characterized in that: It includes a column, a lifting mechanism running up and down on the column, and a grabbing device installed on the lifting mechanism. The grabbing device includes a hanging frame and a grabbing mechanism slidingly running in the hanging frame. The grabbing mechanism includes a casing, a first fork plate and a second fork plate respectively installed on the upper and lower parts of the casing, and a grabbing driving mechanism that drives the first fork plate and the second fork plate to move up and down.

2. The battery box replacement device according to claim 1, characterized in that: The grabbing drive mechanism includes a fixed seat, a guide rod, a sliding seat sliding on the guide rod, and a driving component driving the sliding seat to operate. The fixed seat is respectively installed on the upper and lower parts of the casing, the two ends of the guide rod are respectively installed on the fixed seat, and the sliding seat is respectively fixedly installed on the first fork plate and the second fork plate.

3. The battery box replacement device according to claim 2, characterized in that: The driving assembly is an electric push rod, a cylinder or a screw driving assembly.

4. The battery box replacement device according to claim 1, characterized in that: A thrust seat is arranged at the front end of the casing.

5. The battery box replacement device according to claim 4, characterized in that: The thrust seat comprises a baffle, a push rod passing through the baffle, and a return spring sleeved outside the push rod.

6. The battery box replacement device according to claim 1, characterized in that: The grabbing device also includes a telescopic driving mechanism for driving the grabbing mechanism to operate.

7. The battery box replacement device according to claim 6, characterized in that: The telescopic driving mechanism comprises a rack installed on the hanging frame, a gear installed on the grabbing mechanism and a telescopic motor driving the gear to rotate.

8. The battery box replacement device according to claim 6, characterized in that: The telescopic driving mechanism also includes a guiding mechanism, which includes a guide rail arranged on the hanging frame and a sliding block arranged at the bottom of the housing, and the sliding block slides on the guide rail.

9. The battery box replacement device according to claim 1, characterized in that: The grabbing device also includes a steering drive mechanism for driving the hanging frame to rotate, the steering drive mechanism includes a rotating motor, a first gear transmission-connected to the output end of the rotating motor, and a second gear installed between the top of the hanging frame and the lifting mechanism, the first gear meshing with the second gear.

10. The battery box replacement device according to claim 1, characterized in that: The lifting mechanism comprises a lifting frame, and the hanging frame is suspended on the lifting frame.

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