Battery pack hoisting device and battery replacing trolley

Abstract

The utility model belongs to the technical field of battery replacing equipment, and particularly relates to a battery pack hoisting device and a battery replacing trolley, the battery pack hoisting device comprises a guide part, a first anti-falling part and a power part, and the guide part is parallel to a rotating shaft of a roller; the guide part is sleeved with the first anti-disengaging part in a sliding mode, a first rope groove matched with the steel wire rope is formed in the first anti-disengaging part, and the first anti-disengaging part is right opposite to the winding and unwinding position of the steel wire rope so that the first rope groove and the roller can be spliced to form a rope penetrating channel for the steel wire rope to penetrate through; the power part is connected with the guide part so that the first rope groove can abut against the steel wire rope. In the winding or unwinding process of the steel wire rope, the winding and unwinding positions of the steel wire rope can be changed along the axis of the roller, so that the first anti-disengaging part can be driven to move in the axial direction of the guide part, and under the action of the power part, the first rope groove can abut against the steel wire rope all the time; therefore, the phenomenon that the steel wire rope is disordered in the unwinding or winding process can be avoided, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement equipment, and in particular to a battery pack lifting device and a battery replacement trolley. Background Art

[0002] In heavy equipment and engineering, particularly in battery replacement equipment for electric mining trucks, hoisting mechanisms are used to lift and transport battery packs weighing several tons. As a core component of these hoisting mechanisms, the operating condition of the wire rope directly impacts the efficiency and safety of the hoist.

[0003] However, in actual applications, one end of the wire rope is wound around the drum along the axis of the drum, and the other end is connected to the battery pack through a sling. During the rotation of the drum, the wire rope can be reeled in or unreeled, thereby completing the lifting of the battery pack. During the winding process, the wire rope may overlap or cross due to uneven arrangement, unstable wire rope tension, etc., forming a tangled rope phenomenon, which may cause the wire rope to become derailed or tangled during operation. In addition, the tangled rope will cause uneven force on the wire rope, accelerate wear, reduce the life of the wire rope, and increase the risk of rope breakage, which may easily lead to safety hazards.

[0004] Therefore, the above problems need to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a battery pack lifting device and a battery replacement trolley to avoid the phenomenon of tangled wire ropes during operation.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A battery pack hoisting device includes a drum and a steel wire rope. The drum is rotatable about its own axis. One end of the steel wire rope is wound around the drum along the axial direction of the drum, and the other end is used to hoist the battery pack. The battery pack hoisting device also includes:

[0008] A guide portion is arranged parallel to the rotating shaft of the drum;

[0009] a first anti-slip portion, slidably sleeved on the guide portion, the first anti-slip portion being provided with a first rope groove adapted to the steel wire rope, the first anti-slip portion being aligned with the winding and unwinding positions of the steel wire rope, so that the first rope groove and the drum form a rope passage for passing the steel wire rope;

[0010] The power part is connected to the guide part so as to keep the first rope groove in contact with the wire rope.

[0011] Preferably, the power unit includes:

[0012] Mounting rack;

[0013] a bracket, disposed on the mounting frame, and the guide portion is disposed on the bracket;

[0014] A pushing member is connected to the bracket to push the bracket toward the roller.

[0015] Preferably, the push member is a compression spring, and the compression spring is compressed and arranged between the bracket and the mounting bracket.

[0016] Preferably, a plurality of spiral grooves are provided on the drum at intervals, and the steel wire rope is wound in each spiral groove;

[0017] The first anti-slip portion includes a plurality of anti-slip parts, and the plurality of anti-slip parts are arranged in a one-to-one correspondence with the plurality of spiral grooves.

[0018] Preferably, the anti-slip component is a first anti-slip wheel, and the first rope groove is arranged along the circumference of the first anti-slip wheel.

[0019] Preferably, one of the guide portions and one of the first anti-slip portions constitutes a set of anti-slip components, and a plurality of anti-slip components are provided, and the plurality of anti-slip components are evenly distributed along the circumference of the drum.

[0020] Preferably, the battery pack lifting device further comprises:

[0021] a fixed pulley, arranged on the downstream side of the drum along the extending direction of the wire rope, and having a second rope groove arranged in the circumference of the fixed pulley;

[0022] The second anti-slip portion is opposite to the second rope groove, and the second anti-slip portion is used to close the second rope groove.

[0023] Preferably, the second anti-slip portion includes a plurality of second anti-slip wheels, the axis of any second anti-slip wheel is arranged parallel to the axis of the fixed pulley, and the plurality of second anti-slip wheels are evenly distributed along the circumference of the fixed pulley;

[0024] Each of the second anti-slip wheels can extend to the second rope groove, and both side walls of each of the second anti-slip wheels abut against the groove wall of the second rope groove.

[0025] Preferably, the battery pack hoisting device further includes a detection portion, which is arranged at the end of the stroke of the first anti-slip portion to detect the sliding state of the first anti-slip portion.

[0026] A battery-swapping trolley for replacing batteries in vehicles, comprising:

[0027] The vehicle body moves along a preset direction;

[0028] A hoist is provided below the vehicle body and is used to hoist the battery pack;

[0029] The battery pack lifting device as described above is arranged inside the vehicle body and is used to lift the lifting device.

[0030] Beneficial effects of the utility model:

[0031] In the battery pack lifting device and battery exchange trolley of the present invention, during the process of winding or unwinding the wire rope, the winding and unwinding position of the wire rope will change along the axis of the drum, thereby driving the first anti-slip portion to move axially along the guide portion, and under the action of the power portion, the first rope groove can always be kept in contact with the wire rope, thereby avoiding the phenomenon of tangled wire rope during the unwinding or winding process, thereby improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of the battery-swapping vehicle in an embodiment of the present utility model;

[0033] Figure 2 This is a schematic structural diagram of the vehicle body and battery pack hoisting device in an embodiment of the present utility model;

[0034] Figure 3 This is a structural diagram of the first anti-slip portion, the power portion, and the roller in an embodiment of the present utility model;

[0035] Figure 4 It is a structural schematic diagram of the fixed pulley and the second anti-slip portion in an embodiment of the present utility model.

[0036] In the picture:

[0037] 100, vehicle body; 200, lifting device; 300, battery pack lifting device;

[0038] 1. Roller; 11. Spiral groove;

[0039] 2. Guide part;

[0040] 3. First anti-slip portion; 31. First rope groove;

[0041] 4. Power unit; 41. Mounting frame; 42. Bracket;

[0042] 5. Fixed pulley; 51. Second rope groove;

[0043] 6. Second anti-slip part; 7. Detection part. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0045] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a feature being "above" or "below" a second feature may include being in direct contact with the second feature, or may include being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a feature being "above," "above," and "above" a second feature may include being directly above or obliquely above the second feature, or may simply mean that the feature is higher in level than the second feature. A feature being "below," "below," and "below" a second feature may include being directly below or obliquely below the second feature, or may simply mean that the feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification of operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0048] See also Figure 1This embodiment proposes a battery-swapping trolley for battery swapping on a vehicle (not shown in the figure). The trolley includes a car body 100, a hoist 200, and a battery pack hoisting device 300. The car body 100 moves along a preset direction; the hoist 200 is provided below the car body 100 and is used to hoist the battery pack; the battery pack hoisting device 300 is provided inside the car body 100 and is used to lift the hoist 200. During the battery swap process, the car body 100 moves to a preset position, the hoist 200 can be connected to the battery pack, and the lifting and lowering of the hoist can be controlled under the action of the battery pack hoisting device 300. The battery pack can also be transferred to the vehicle for battery swapping under the action of the car body 100. Moreover, under the action of the battery pack hoisting device 300, the wire rope can be prevented from becoming tangled, thereby improving the safety performance of the battery-swapping trolley during the battery swap process.

[0049] Specifically, the battery pack lifting device 300 includes a drum 1 and a steel wire rope. The drum 1 can be rotated around its own axis and can be set on the vehicle body 100 through a bearing seat. One end of the steel wire rope is wound around the drum 1 along the axial direction of the drum 1, and the other end is used to lift the battery pack, that is, the other end can be connected to the battery pack through a sling to complete the lifting of the battery pack.

[0050] Based on the above, in order to avoid the phenomenon of tangled wire ropes during winding or unwinding, please refer to Figure 2 and Figure 3 In this embodiment, the battery pack lifting device 300 further includes a guide portion 2, a first anti-slip portion 3 and a power portion 4. The guide portion 2 is arranged parallel to the rotating shaft of the drum 1; the first anti-slip portion 3 is slidably sleeved on the guide portion 2, and a first rope groove 31 adapted to the wire rope is provided on the first anti-slip portion 3. The first anti-slip portion 3 is directly opposite to the winding and unwinding position of the wire rope, so that the first rope groove 31 and the drum 1 form a rope threading channel for threading the wire rope; the power portion 4 is connected to the guide portion 2 to keep the first anti-slip portion 3 in contact with the drum 1.

[0051] It can be understood that as the wire rope is wound or unwound, the winding and unwinding position of the wire rope will change along the axis of the drum, thereby driving the first anti-slip portion 3 to move axially along the guide portion 2, and under the action of the power portion 4, the first rope groove 31 can always be in contact with the wire rope, thereby avoiding the phenomenon of tangled ropes during the unwinding or winding process.

[0052] In this embodiment, the power unit 4 includes a mounting frame 41, a bracket 42, and a push-pull member. The mounting frame 41 is mounted on the vehicle body 100; the bracket 42 is mounted on the mounting frame 41, and the guide portion 2 is mounted on the bracket 42. The push-pull member is connected to the bracket 42 to push the bracket 42 toward the drum 1. It is understood that both ends of the guide portion 2 are connected to the bracket 42 so that the guide portion 2 is arranged parallel to the drum 1. The bracket 42 is slidably connected to the mounting frame 41 via a guide rail. Under the action of the push-pull member, the bracket 42 can be moved toward the drum 1. During the operation of the wire rope, the first anti-slip portion 3 can always be in contact with the drum 1, so that the first rope groove 31 and the drum 1 can always form a rope threading channel, thereby ensuring the safety of the wire rope operation.

[0053] Specifically, the push member is a compression spring, which is compressed and arranged between the bracket 42 and the mounting bracket 41. It is understood that the compression spring can adapt to the slight vibration and displacement of the wire rope during operation, thereby avoiding hard contact between the push member and the drum 1, thereby improving the life of the battery pack lifting device 300.

[0054] In this embodiment, the drum 1 is provided with a plurality of spiral grooves 11 at intervals, each of which is wound with a corresponding wire rope; the first anti-slip portion 3 includes a plurality of anti-slip members, each of which is provided in a one-to-one correspondence with the plurality of spiral grooves 11. It is understood that the spiral grooves 11 facilitate winding the wire rope to prevent the wire rope from becoming tangled or falling off during operation, and the anti-slip members are provided in correspondence with the spiral grooves 11, thereby further preventing the wire rope from becoming tangled or falling off during operation.

[0055] Preferably, the anti-slip component is a first anti-slip pulley, and the first rope groove 31 is arranged along the circumference of the first anti-slip pulley. It is understood that during rotation, the drum 1 can drive the first anti-slip pulley to rotate, so that the friction between the first anti-slip pulley and the drum 1 is rolling friction, thereby reducing wear of the wire rope on the drum 1 and the first anti-slip pulley during operation, further improving the service life of the battery pack lifting device 300. Correspondingly, the guide portion 2 is a guide shaft.

[0056] Furthermore, a guide portion 2 and a first anti-slip portion 3 form a set of anti-slip components, and multiple sets of anti-slip components are provided, and the multiple sets of anti-slip components are evenly distributed along the circumference of the drum 1. It can be understood that one set of anti-slip components is connected to the power unit 4 and is named the first anti-slip component, and the remaining anti-slip components can be selectively connected to the power unit 4 and are named the second anti-slip component. During the winding process, the wire rope first passes through the second anti-slip component and finally passes through the first anti-slip component, and is then connected to the fixed pulley 5 on the downstream side of the drum 1. Such an arrangement can further prevent the wire rope from being sloughed off during operation, thereby further improving safety performance.

[0057] Also, see Figure 4 When the wire rope is unwound, it can extend to the downstream side of the drum 1. In order to facilitate the adjustment of the extension direction of the wire rope, the battery pack lifting device 300 also includes a fixed pulley 5 on the downstream side of the drum 1. The fixed pulley 5 is rotatably arranged on the vehicle body 100. A second rope groove 51 is provided in the circumference of the fixed pulley 5 to facilitate the winding of the wire rope. During operation, the wire rope may detach from the second rope groove 51, which may easily cause a safety hazard.

[0058] Therefore, in this embodiment, the battery pack hoisting device 300 further includes a second anti-slip portion 6, which is disposed on the vehicle body 100 and is capable of closing the second rope groove 51. It is understood that the second anti-slip portion 6 and the second rope groove 51 can also be combined to form a rope passage for threading a steel wire rope, thereby preventing the steel wire rope from detaching from the second rope groove 51.

[0059] Specifically, the second anti-slip portion 6 includes a plurality of second anti-slip wheels, which are all rotatably arranged on the vehicle body 100 and are evenly distributed along the circumference of the fixed pulley 5; wherein, each second anti-slip wheel can extend to the second rope groove 51, and the two side walls of each second anti-slip wheel are in contact with the groove wall of the second rope groove 51. It can be understood that during the rotation of the fixed pulley 5, it can drive the plurality of second anti-slip wheels to rotate, so that rolling friction can be generated between the second anti-slip wheel and the fixed pulley 5, thereby reducing the wear of the fixed pulley 5 and the second anti-slip wheel during operation of the wire rope, so as to further improve the service life of the battery pack hoisting device 300. In addition, during the threading process of the wire rope, some of the second anti-slip wheels can play a role in changing the extension direction of the wire rope, thereby further improving the applicability of the battery pack hoisting device 300.

[0060] In this embodiment, the battery pack hoisting device 300 further includes a detection unit 7, which is disposed on the vehicle body 100 to detect the sliding state of the first anti-slip portion 3. It is understood that if the wire rope becomes unstuck or tangled during operation, the sliding state of the first anti-slip portion 3 may change, and the detection unit 7 can detect this change and provide a feedback signal.

[0061] Specifically, the detection part 7 includes a detection part, a controller and an alarm device. The drum 1, the detection part and the alarm device are all electrically connected to the controller. The detection part is used to detect the sliding state of the first anti-slip part 3. When the detection part detects that the sliding state of the first anti-slip part 3 is abnormal, it can feedback a signal to the controller, thereby stopping the rotation of the drum 1, and the controller can control the alarm device to send an alarm signal for the staff to confirm.

[0062] Exemplarily, the detection element is a proximity switch, which is disposed at the end of the guide portion 2. When the first anti-slip portion 3 moves to the end of the guide portion 2 and continues to move, the proximity switch emits a signal. Alternatively, the detection element is a displacement sensor, which outputs a signal when the displacement of the first anti-slip wheel exceeds a threshold value of the displacement sensor.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A battery pack hoisting device, comprising a drum (1) and a steel wire rope, wherein the drum (1) is rotatable about its own axis, one end of the steel wire rope is wound around the drum (1) along the axial direction of the drum (1), and the other end is used for hoisting the battery pack, characterized in that: The battery pack lifting device further includes: A guide portion (2) is arranged parallel to the rotation axis of the roller (1); A first anti-slip portion (3) is slidably sleeved on the guide portion (2), and a first rope groove (31) adapted to the steel wire rope is provided on the first anti-slip portion (3). The first anti-slip portion (3) is aligned with the winding and unwinding positions of the steel wire rope, so that the first rope groove (31) and the drum (1) form a rope passage for passing the steel wire rope; The power part (4) is connected to the guide part (2) so as to keep the first rope groove (31) in contact with the steel wire rope.

2. The battery pack hoisting device according to claim 1, characterized in that: The power unit (4) includes: Mounting frame (41); A bracket (42) is arranged on the mounting frame (41), and the guide portion (2) is arranged on the bracket (42); A pushing member is connected to the bracket (42) to push the bracket (42) toward the roller (1).

3. The battery pack hoisting device according to claim 2, characterized in that: The push-pull member is a compression spring, and the compression spring is compressed and arranged between the bracket (42) and the mounting frame (41).

4. The battery pack hoisting device according to claim 1, characterized in that: The drum (1) is provided with a plurality of spiral grooves (11) at intervals, and the steel wire rope is wound in each of the spiral grooves (11); The first anti-slip portion (3) comprises a plurality of anti-slip parts, and the plurality of anti-slip parts are arranged in a one-to-one correspondence with the plurality of spiral grooves (11).

5. The battery pack hoisting device according to claim 4, characterized in that: The anti-slip component is a first anti-slip wheel, and the first rope groove (31) is arranged along the circumference of the first anti-slip wheel.

6. The battery pack hoisting device according to claim 1, characterized in that: One of the guide parts (2) and one of the first anti-slipping parts (3) forms a set of anti-slipping components. Multiple sets of the anti-slipping components are provided, and the multiple sets of the anti-slipping components are evenly distributed along the circumference of the roller (1).

7. The battery pack hoisting device according to claim 1, characterized in that: The battery pack hoisting device (300) further includes: A fixed pulley (5) is provided on the downstream side of the drum (1) along the extension direction of the steel wire rope, and a second rope groove (51) is provided in the circumference of the fixed pulley (5); The second anti-slip portion (6) is directly opposite to the second rope groove (51), and the second anti-slip portion (6) is used to close the second rope groove (51).

8. The battery pack hoisting device according to claim 7, characterized in that: The second anti-slip portion (6) includes a plurality of second anti-slip wheels, the axis of any of the second anti-slip wheels is arranged parallel to the axis of the fixed pulley (5), and the plurality of second anti-slip wheels are evenly distributed along the circumference of the fixed pulley (5); Each of the second anti-slip wheels can extend to the second rope groove (51), and both side walls of each of the second anti-slip wheels abut against the groove wall of the second rope groove (51).

9. The battery pack hoisting device according to claim 1, characterized in that: The battery pack hoisting device further comprises a detection portion (7), which is arranged at the end of the travel of the first anti-slip portion (3) to detect the sliding state of the first anti-slip portion (3).

10. A battery-swapping vehicle, used for battery swapping in vehicles, characterized in that: include: The vehicle body (100) moves along a preset direction; A hoist (200) is provided below the vehicle body (100) and is used for hoisting the battery pack; The battery pack lifting device (300) according to any one of claims 1 to 9 is arranged inside the vehicle body (100) and is used to lift the lifting device (200).

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