Battery replacing lifting appliance for power battery box

Abstract

The utility model discloses a battery changing lifting appliance for a power battery box, which comprises a support frame, a rotary lifting hook and a power component, the power component comprises a rotary ring and a driving motor, the rotary ring is connected with two connecting rod transmission mechanisms, each connecting rod transmission mechanism comprises a first connecting rod, a push rod and two two-connecting-rod mechanisms, the middle and the two ends of the push rod are slidably connected with the supporting frame, one end of the first connecting rod is hinged to the rotary ring, the middle of the push rod is hinged to the other end of the first connecting rod, one ends of the two two-connecting-rod mechanisms are hinged to the two ends of the push rod respectively, and the other ends of the two two-connecting-rod mechanisms are connected with the two rotary lifting hooks in a clamped mode respectively. The battery box lifting appliance is reasonable in structural design and convenient to operate, the two connecting rod transmission mechanisms are connected to the rotary ring to drive the four rotary lifting hooks to rotate, locking and unlocking of a battery box are achieved, safe lifting of the battery box is guaranteed, the lifting appliance can be driven by one driving source, the construction cost can be effectively reduced, and the service life can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery box hoisting, and in particular relates to a battery replacement hoist for a power battery box. Background Art

[0002] Heavy-duty trucks have a large demand for battery power. The use of charging technology affects the efficiency of heavy-duty trucks, while the use of battery swapping technology can greatly improve the efficiency of electric heavy-duty trucks. However, there are a large number of batteries on heavy-duty trucks, and a battery swapping hoist is required to replace the battery box when swapping batteries. The multiple hooks on the existing battery swapping hoist are driven by multiple motors or multiple cylinders, that is, multi-source drive. Such a hoist must be equipped with multiple drive sources, which is relatively costly. At present, there are also battery swapping hoists that do not require the use of additional power sources such as hydraulic, pneumatic, and electrical. The hooks need to rely on the elastic force of the elastic body and use a hard extrusion method to hang the battery box. The service life is short and it is unsafe. Therefore, it is necessary to propose a battery swapping hoist for a power battery box that is easy to operate and safe to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a battery replacement hoist for a power battery box in view of the deficiencies in the above-mentioned prior art. The utility model has a reasonable structural design and is easy to operate. By connecting two connecting rod transmission mechanisms on a slewing ring and making each connecting rod transmission mechanism drive two rotating hooks to rotate respectively, the battery box can be locked and unlocked to ensure the safe lifting of the battery box. The hoist can be driven by a driving source, which can effectively reduce construction costs and increase service life.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a battery replacement hanger for a power battery box, characterized in that it includes a support frame, four rotating hooks rotatably mounted on the support frame, and a power assembly arranged on the support frame and used to drive the four rotating hooks to rotate;

[0005] The power assembly includes a slewing ring arranged in the middle of the supporting frame and a driving motor for driving the slewing ring to rotate. Two connecting rod transmission mechanisms are connected to the slewing ring. A single connecting rod transmission mechanism drives the two rotating hooks on the same side of the supporting frame to rotate. Each of the connecting rod transmission mechanisms includes a first connecting rod, a push rod and two two-link mechanisms. The middle and both ends of the push rod are slidably connected to the supporting frame. One end of the first connecting rod is hinged on the slewing ring, and the middle part of the push rod is hinged to the other end of the first connecting rod. One end of the two two-link mechanisms are respectively hinged to the two ends of the push rod, and the other ends of the two two-link mechanisms are respectively engaged with the two rotating hooks.

[0006] The above-mentioned battery replacement hanger for a power battery box is characterized in that: the support frame includes a rectangular outer frame, two cross bars are arranged in the middle of the rectangular outer frame, two longitudinal supports are connected between the two cross bars, support plates are arranged on the upper parts of the two longitudinal supports, and the slewing ring is rotatably mounted on the support plate through a slewing bearing.

[0007] The above-mentioned battery replacement hanger for a power battery box is characterized in that the outer ring of the slewing bearing is an outer gear ring, the drive motor is installed on a side of the longitudinal support, and a gear meshing with the outer gear ring is fixedly mounted on the output shaft of the drive motor.

[0008] The above-mentioned battery replacement hanger for a power battery box is characterized in that three longitudinal bars are connected between each of the horizontal bars and the rectangular outer frame, each of the longitudinal bars is provided with a longitudinal slide rail, and the middle part and both ends of the push rod are respectively slidably matched with the three longitudinal slide rails through sliders.

[0009] The above-mentioned battery replacement hanger for a power battery box is characterized in that: the two-link mechanism includes a second link and a third link, one end of the second link is hinged to a slider at one end of the push rod, one end of the third link is hinged to the other end of the second link, and the other end of the third link is clamped with a rotating hook through a U-shaped clamp.

[0010] The above-mentioned battery replacement hanger for a power battery box is characterized in that: the rotating hook is an L-shaped hook and includes a hook rod and a hook head arranged at the lower end of the hook rod, the hook rod is rotatably passed through one side of the rectangular outer frame and its upper end extends to the top of the supporting frame, a gap is arranged between the top of the hook head and the bottom of the rectangular outer frame, and the U-shaped clip is clamped at the upper end of the hook rod.

[0011] The above-mentioned battery replacement hanger for a power battery box is characterized in that a locking nut is threadedly installed on the hook rod, and the locking nut is located on the upper side of the rectangular outer frame.

[0012] The above-mentioned battery replacement hanger for a power battery box is characterized in that a plurality of lifting ears are arranged on the upper part of the rectangular outer frame.

[0013] The above-mentioned battery replacement hanger for a power battery box is characterized in that a plurality of guide blocks are provided at the lower part of the support frame.

[0014] The above-mentioned battery replacement hanger for a power battery box is characterized in that the push rod is an obtuse-angle V-shaped rod, and an extension rod section for hinged connection of the first connecting rod is provided at the top corner of the push rod.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model connects two connecting rod transmission mechanisms on the slewing ring, and each connecting rod transmission mechanism drives two rotating hooks to rotate respectively. When the driving motor drives the slewing ring to rotate, the two connecting rod transmission mechanisms drive the four rotating hooks to move synchronously to the specified positions, so that the sling can be driven by one driving source, which can effectively reduce the construction cost.

[0017] 2. The utility model installs four rotating hooks on the support frame, and can control the rotation position of the rotating hooks, thereby locking and unlocking the battery box through the four rotating hooks, thereby ensuring the safe lifting of the battery box, convenient operation, and effectively improving the service life of the lifting device.

[0018] To sum up, the utility model has a reasonable structural design and is easy to operate. By connecting two connecting rod transmission mechanisms on the slewing ring and making each connecting rod transmission mechanism drive two rotating hooks to rotate respectively, the battery box can be locked and unlocked to ensure the safe lifting of the battery box. The lifting device can be driven by a driving source, which can effectively reduce construction costs and increase service life.

[0019] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 It is a top view of the utility model when the rotary hook is rotated out.

[0022] Description of reference numerals:

[0023] 1—Support frame; 2—Rectangular outer frame; 3—Crossbar;

[0024] 4—longitudinal support; 5—support plate; 6—slewing ring;

[0025] 7—slewing bearing; 8—driving motor; 9—longitudinal rod;

[0026] 10—longitudinal slide rail; 11—sliding block; 12—first connecting rod;

[0027] 13—push rod; 14—second connecting rod; 15—third connecting rod;

[0028] 16—U-shaped card; 17—swivel hook; 18—locking nut;

[0029] 19—Extension rod section; 20—Lifting eye; 21—Guide block. DETAILED DESCRIPTION

[0030] like Figure 1and Figure 2 As shown, the utility model comprises a support frame 1, four rotating hooks 17 rotatably mounted on the support frame 1, and a power assembly arranged on the support frame 1 and used for driving the four rotating hooks 17 to rotate;

[0031] The power assembly includes a slewing ring 6 arranged in the middle of the support frame 1 and a driving motor 8 for driving the slewing ring 6 to rotate. Two connecting rod transmission mechanisms are connected to the slewing ring 6. A single connecting rod transmission mechanism drives the two rotating hooks 17 on the same side of the support frame 1 to rotate. Each of the connecting rod transmission mechanisms includes a first connecting rod 12, a push rod 13 and two two-link mechanisms. The middle and both ends of the push rod 13 are slidingly connected to the support frame 1. One end of the first connecting rod 12 is hinged on the slewing ring 6, and the middle part of the push rod 13 is hinged to the other end of the first connecting rod 12. One end of the two two-link mechanisms are respectively hinged to the two ends of the push rod 13, and the other ends of the two two-link mechanisms are respectively clamped with the two rotating hooks 17.

[0032] In actual use, by connecting two connecting rod transmission mechanisms on the slewing ring 6, and each connecting rod transmission mechanism drives two rotating hooks 17 to rotate respectively, when the driving motor 8 drives the slewing ring 6 to rotate, the two connecting rod transmission mechanisms drive the four rotating hooks 17 to move synchronously to the specified position, so that the sling can be driven by one driving source, which can effectively reduce construction costs.

[0033] It should be noted that by rotatably installing four rotating hooks 17 on the support frame 1, the rotational position of the rotating hooks 17 can be controlled, and then the battery box can be locked and unlocked through the four rotating hooks 17, thereby ensuring the safe lifting of the battery box, convenient operation, and effectively improving the service life of the lifting equipment.

[0034] In a specific implementation, two hinge shafts for hinge connection of the first connecting rod 12 are arranged on the slewing ring 6 , and the two hinge shafts are symmetrically arranged on the slewing ring 6 , and the two hinge shafts are symmetrically arranged relative to the center line of the slewing ring 6 .

[0035] In this embodiment, the support frame 1 includes a rectangular outer frame 2, two cross bars 3 are arranged in the middle of the rectangular outer frame 2, two longitudinal supports 4 are connected between the two cross bars 3, support plates 5 are arranged on the upper parts of the two longitudinal supports 4, and the slewing ring 6 is rotatably installed on the support plate 5 through a slewing bearing 7.

[0036] In actual use, the cross bar 3 is parallel to the short side of the rectangular outer frame 2 , the longitudinal support 4 is parallel to the long side of the rectangular outer frame 2 , and the support plate 5 is a rectangular steel plate, which is fixed on the two longitudinal supports 4 .

[0037] In specific implementation, the slewing ring 6 and the slewing bearing 7 are coaxially arranged, the inner ring of the slewing bearing 7 is fixed on the support plate 5, the slewing ring 6 is fixed on the outer ring of the slewing bearing 7, and the slewing ring 6 and the outer ring of the slewing bearing 7 rotate synchronously.

[0038] In this embodiment, the outer ring of the slewing bearing 7 is an outer gear ring, the drive motor 8 is installed on a side of the longitudinal support 4, and a gear meshing with the outer gear ring is fixedly mounted on the output shaft of the drive motor 8.

[0039] In actual use, the output shaft of the driving motor 8 is arranged upward, and the output shaft of the driving motor 8 and the supporting plate 5 are perpendicular to each other.

[0040] In specific implementation, after the driving motor 8 is started, the gear fixed on the output shaft of the driving motor 8 rotates, the gear drives the outer gear ring of the slewing bearing 7 to rotate, and the outer gear ring of the slewing bearing 7 drives the slewing ring 6 to rotate.

[0041] In this embodiment, three longitudinal rods 9 are connected between each of the cross rods 3 and the rectangular outer frame 2, and each of the longitudinal rods 9 is provided with a longitudinal slide rail 10. The middle and both ends of the push rod 13 are slidably matched with the three longitudinal slide rails 10 respectively through sliders 11.

[0042] In actual use, each longitudinal slide rail 10 corresponds to a sliding block 11 .

[0043] In this embodiment, the two-link mechanism includes a second link 14 and a third link 15, one end of the second link 14 is hinged on the slider 11 at one end of the push rod 13, one end of the third link 15 is hinged to the other end of the second link 14, and the other end of the third link 15 is clamped with the rotating hook 17 through a U-shaped clamp 16.

[0044] In this embodiment, the rotating hook 17 is an L-shaped hook and includes a hook rod and a hook head arranged at the lower end of the hook rod. The hook rod is rotatably passed through one side of the rectangular outer frame 2 and its upper end extends to the top of the supporting frame 1. A gap is provided between the top of the hook head and the bottom of the rectangular outer frame 2, and the U-shaped clip 16 is clamped at the upper end of the hook rod.

[0045] During actual use, the U-shaped card 16 and the rotating hook 17 rotate synchronously, the hook rod passes through the upper and lower sides of the supporting frame 1, and the hook head is located below the supporting frame 1.

[0046] In this embodiment, a locking nut 18 is threadedly mounted on the hook rod, and the locking nut 18 is located on the upper side of the rectangular outer frame 2 .

[0047] In actual use, the anti-loosening nut 18 is preferably a slotted nut, and the hook rod is provided with a cotter pin that matches the slotted nut.

[0048] In this embodiment, a plurality of lifting ears 20 are provided on the upper portion of the rectangular outer frame 2 .

[0049] In actual use, the number of the hanging ears 20 is preferably four, and the hanging ears 20 are fixed on the rectangular outer frame 2 .

[0050] In this embodiment, a plurality of guide blocks 21 are disposed at the lower portion of the support frame 1 .

[0051] In actual use, a guiding inclined surface is provided on the outer side of the guiding block 21 , and the positioning of the battery box is achieved through the guiding inclined surface of the guiding block 21 .

[0052] During specific implementation, the guide block 21 is fixed at the connection between the rectangular outer frame 2 and the cross bar 3 .

[0053] In this embodiment, the push rod 13 is an obtuse-angle V-shaped rod, and an extension rod section 19 for hinged connection of the first connecting rod 12 is provided at the top corner of the push rod 13 .

[0054] In actual use, the push rod 13 and the extension rod section 19 are fixed in place as a whole, the extension rod section 19 and the longitudinal support 4 are parallel to each other, and the first connecting rod 12 is hinged between the extension rod section 19 and the slewing ring 6.

[0055] When the utility model is actually used, before hoisting the battery box, the four rotating hooks 17 are rotated and retracted to the bottom of the supporting frame 1. When hoisting the battery box, the hoist is first lifted and moved in the direction of the battery box until the supporting frame 1 is located above the frame of the battery box. Then, under the guidance of multiple guide blocks 21, the hoist continues to descend until the top of the rotating hook 17 is lower than the bottom of the frame of the battery box. Then, the driving motor 8 is started to drive the slewing ring 6 to drive the two connecting rod transmission mechanisms to move, thereby driving the four rotating hooks 17 to rotate 90 degrees. At this time, the rotating hook 17 is rotated out and extends to the bottom of the frame of the battery box to complete the locking of the battery box. The battery box is lifted by lifting the hoist. When the battery box is hoisted in place; the driving motor 8 drives the two connecting rod transmission mechanisms to move, thereby driving the four rotating hooks 17 to rotate 90 degrees, and the rotating hook 17 is retracted to the bottom of the supporting frame 1 to complete the unlocking of the battery box.

[0056] It should be noted that when the rotary hook 17 is rotated out, the first connecting rod 12 and the extension rod section 19 are collinear, and the connecting rod transmission mechanism moves to a dead point position to achieve self-locking.

[0057] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A battery replacement hanger for a power battery box, characterized in that: It comprises a supporting frame (1), four rotating hooks (17) rotatably mounted on the supporting frame (1), and a power assembly arranged on the supporting frame (1) and used for driving the four rotating hooks (17) to rotate; The power assembly comprises a slewing ring (6) arranged in the middle of the support frame (1) and a driving motor (8) for driving the slewing ring (6) to rotate. Two connecting rod transmission mechanisms are connected to the slewing ring (6). A single connecting rod transmission mechanism drives two rotating hooks (17) on the same side of the support frame (1) to rotate. Each of the connecting rod transmission mechanisms comprises a first connecting rod (12), a push rod (13) and two two-link mechanisms. The middle and both ends of the push rod (13) are slidably connected to the support frame (1). One end of the first connecting rod (12) is hinged on the slewing ring (6), and the middle part of the push rod (13) is hinged to the other end of the first connecting rod (12). One end of the two two-link mechanisms is respectively hinged to the two ends of the push rod (13), and the other ends of the two two-link mechanisms are respectively clamped to the two rotating hooks (17).

2. A battery replacement hanger for a power battery box according to claim 1, characterized in that: The support frame (1) comprises a rectangular outer frame (2), two cross bars (3) are arranged in the middle of the rectangular outer frame (2), two longitudinal supports (4) are connected between the two cross bars (3), a support plate (5) is arranged on the upper part of the two longitudinal supports (4), and the slewing ring (6) is rotatably mounted on the support plate (5) via a slewing bearing (7).

3. A battery replacement hanger for a power battery box according to claim 2, characterized in that: The outer ring of the slewing bearing (7) is an outer gear ring, the drive motor (8) is installed on the side of one of the longitudinal supports (4), and a gear meshing with the outer gear ring is fixedly mounted on the output shaft of the drive motor (8).

4. A battery replacement hanger for a power battery box according to claim 2, characterized in that: Three longitudinal rods (9) are connected between each of the cross rods (3) and the rectangular outer frame (2), and each of the longitudinal rods (9) is provided with a longitudinal slide rail (10). The middle part and both ends of the push rod (13) are respectively slidably matched with the three longitudinal slide rails (10) through sliders (11).

5. A battery replacement hanger for a power battery box according to claim 4, characterized in that: The two-link mechanism comprises a second link (14) and a third link (15), one end of the second link (14) is hinged on a slider (11) at one end of a push rod (13), one end of the third link (15) is hinged to the other end of the second link (14), and the other end of the third link (15) is clamped to a rotating hook (17) via a U-shaped clamp (16).

6. A battery replacement hanger for a power battery box according to claim 5, characterized in that: The rotating hook (17) is an L-shaped hook and comprises a hook rod and a hook head arranged at the lower end of the hook rod. The hook rod is rotatably inserted into one side of the rectangular outer frame (2) and its upper end extends to the top of the supporting frame (1). A gap is provided between the top of the hook head and the bottom of the rectangular outer frame (2). The U-shaped clip (16) is clipped to the upper end of the hook rod.

7. A battery replacement hanger for a power battery box according to claim 6, characterized in that: A locking nut (18) is threadedly mounted on the hook rod, and the locking nut (18) is located on the upper side of the rectangular outer frame (2).

8. A battery replacement hanger for a power battery box according to claim 2, characterized in that: A plurality of lifting ears (20) are arranged on the upper part of the rectangular outer frame (2).

9. A battery replacement hanger for a power battery box according to claim 1, characterized in that: A plurality of guide blocks (21) are arranged at the lower part of the support frame (1).

10. A battery replacement hanger for a power battery box according to claim 1, characterized in that: The push rod (13) is a blunt-angle V-shaped rod, and an extension rod section (19) for hinged connection of the first connecting rod (12) is arranged at the top corner of the push rod (13).

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