Suspension arm for battery replacing vehicle and battery replacing vehicle

Abstract

The embodiment of the utility model provides a battery replacing vehicle and a suspension arm for the battery replacing vehicle, and relates to the technical field of battery replacing suspension arms for electric ships. The battery replacing vehicle comprises a suspension arm, the suspension arm comprises a rotating base, an arm set and a driving assembly, the arm set comprises a reference arm, a connecting arm and a telescopic arm which are sequentially connected, the reference arm is installed on the rotating base and provided with a first driving oil cylinder, the first driving oil cylinder can drive the connecting arm to swing in a pitching mode relative to the reference arm, and the connecting arm is provided with a second driving oil cylinder; the telescopic arm comprises a telescopic shell and a sub-telescopic arm, the second driving oil cylinder can drive the telescopic shell to swing in a pitching mode relative to the connecting arm, the sub-telescopic arm can stretch out and draw back relative to the telescopic shell, the driving assembly comprises a hydraulic oil tank, a hydraulic pump and a driving motor, and the driving motor is used for controlling the hydraulic pump to start and stop so as to control start and stop of the first driving oil cylinder and the second driving oil cylinder. The driving motor can accurately control the output flow of the hydraulic pump. And the flexibility of driving the arm group to start and stop by the driving assembly is improved. Therefore, the battery hoisting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric ship battery replacement jib technical field, specifically, relate to a jib and battery replacement vehicle for battery replacement vehicle. BACKGROUND

[0002] With the increasing demand for clean energy and sustainable transportation worldwide, the ship industry is facing unprecedented challenges and opportunities. Traditional ships mainly rely on fossil fuels, which not only leads to serious environmental pollution problems, but also raises questions about their economic viability as resources become increasingly depleted. Therefore, the development of new clean energy ships, especially battery replacement ships, has become an inevitable trend in the industry. When replacing the battery of a ship, it is necessary to transfer the battery on the shore to the electric ship. Here, battery replacement vehicles are needed. During the process of battery hoisting, the jib drives the hoisting device to transfer the battery, so as to realize the hoisting and transfer of the battery on the battery replacement vehicle to the target position.

[0003] The inventor found that the efficiency of the jib on some existing battery replacement vehicles is low when hoisting the battery. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a jib and battery replacement vehicle, which can improve the efficiency of hoisting the battery.

[0005] The embodiments of the utility model can be implemented as follows:

[0006] In a first aspect, the utility model provides a jib for a battery replacement vehicle, comprising:

[0007] The rotating base is used to install the vehicle body of the battery replacement vehicle and can rotate relative to the vehicle body around a preset axis;

[0008] The arm group comprises a reference arm, a connecting arm and a telescopic arm connected in sequence. The reference arm is installed on the rotating base, and the reference arm is provided with a first drive oil cylinder. The connecting arm is hinged to the reference arm and can swing relative to the reference arm around a first axis. The driving end of the first drive oil cylinder is hinged to the connecting arm. The connecting arm is provided with a second drive oil cylinder. The telescopic arm comprises a telescopic shell and a sub-telescopic arm installed in the telescopic shell. The telescopic shell is hinged to the connecting arm away from the reference arm and can swing around a second axis relative to the connecting arm. The driving end of the second drive oil cylinder is hinged to the telescopic shell. The sub-telescopic arm can be telescoped relative to the telescopic shell. The sub-telescopic arm is connected to the hoisting device. The preset axis is perpendicular to the horizontal plane, and the first axis and the second axis are parallel to the horizontal plane.

[0009] The driving assembly comprises a hydraulic oil tank, a hydraulic pump and a driving motor, the driving motor is in transmission connection with the hydraulic pump, the hydraulic oil tank is connected with the hydraulic pump, the first driving oil cylinder and the second driving oil cylinder are connected with the hydraulic pump, and the driving motor controls the start and stop of the hydraulic pump to control the start and stop of the first driving oil cylinder and the second driving oil cylinder.

[0010] In an optional embodiment, the telescopic shell is provided with a telescopic oil cylinder for driving the sub telescopic arm to telescope relative to the telescopic shell, and the telescopic oil cylinder is connected with the hydraulic oil tank and the hydraulic pump.

[0011] In an optional embodiment, a first sensor is mounted on the end of the reference arm away from the rotating base, the first sensor is in communication connection with the rotating base, and the first sensor is used for detecting the rotation angle of the reference arm.

[0012] In an optional embodiment, a second sensor is mounted on the end of the connecting arm away from the reference arm, and the second sensor is used for detecting the swing angle of the connecting arm.

[0013] In an optional embodiment, a third sensor is mounted on the telescopic shell, and the third sensor is used for detecting the telescoping length of the sub telescopic arm.

[0014] In an optional embodiment, the driving assembly further comprises a heat exchange module for adjusting the temperature of the hydraulic oil in the hydraulic oil tank.

[0015] In an optional embodiment, the heat exchange module comprises a heat dissipation fan mounted on the hydraulic oil tank, and the heat exchange module adjusts the temperature of the hydraulic oil in the hydraulic oil tank through the heat dissipation fan.

[0016] In an optional embodiment, at least one of the reference arm, the connecting arm and the telescopic shell is provided with a reinforcing rib.

[0017] In an optional embodiment, the hydraulic pump is connected with the first driving oil cylinder through a first pipeline, an accumulator is mounted on the first pipeline, or a proportional valve or a servo valve is mounted on the first pipeline;

[0018] And / or, the hydraulic pump is connected with the second driving oil cylinder through a second pipeline, an accumulator is mounted on the second pipeline, or a proportional valve or a servo valve is mounted on the second pipeline;

[0019] And / or, an accumulator is mounted on the oil inlet of the hydraulic pump.

[0020] In a second aspect, the utility model provides a kind of battery replacement vehicle, including the jib of any one of the foregoing embodiments of battery replacement vehicle.

[0021] The utility model discloses a kind of battery replacement vehicles and the boom for battery replacement vehicle, boom includes rotating base, arm group and drive assembly, arm group includes benchmark arm, connecting arm and telescopic arm connected in turn, benchmark arm is installed in rotating base and is equipped with first drive cylinder, first drive cylinder can drive connecting arm to pitch oscillation relative to benchmark arm, connecting arm is equipped with second drive cylinder, telescopic arm includes telescopic shell and sub telescopic arm, second drive cylinder can drive telescopic shell to pitch oscillation relative to connecting arm, sub telescopic arm can be telescopic relative to telescopic shell, drive assembly includes hydraulic oil tank, hydraulic pump and drive motor, drive motor is used to control the start-stop of hydraulic pump, to control the start-stop of first drive cylinder and second drive cylinder.The drive motor can realize the accurate control of hydraulic pump output flow. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings.

[0023] Figure 1 The structural schematic diagram of battery replacement vehicle provided for the embodiment is shown in the figure.

[0024] Figure 2 The partial enlarged view of Figure 1 .

[0025] Figure: 1-battery replacement vehicle;100-car body;200-boom;210-rotating base;220-arm group;221-benchmark arm;222-connecting arm;223-telescopic arm;2231-telescopic shell;2232-sub telescopic arm;224-first drive cylinder;225-second drive cylinder;226-telescopic oil cylinder;230-first sensor;240-second sensor;250-third sensor;260-drive assembly;261-hydraulic oil tank;262-hydraulic pump;263-drive motor;264-heat exchange module;270-stiffener;300-industrial computer;400-hoisting device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clearly, the following will be combined with the drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0028] It should be noted that: similar numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, only for the convenience of describing the present application and simplifying the description, and it does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0032] The specific structure of the boom for the battery replacement vehicle 1 and the corresponding technical effects brought by the boom will be described in detail below with reference to the patent drawings.

[0033] Please refer to Figures 1-2The utility model embodiment provides a kind of crane 1 of battery replacement car 1's boom 200, including rotating base 210, arm group 220 piece and drive assembly 260.Arm group 220 includes reference arm 221, connecting arm 222 and telescopic arm 223 connected in sequence, reference arm 221 is installed in rotating base 210, reference arm 221 is equipped with first drive cylinder 224, connecting arm 222 is hinged with reference arm 221 and can swing around first axis relative to reference arm 221, the drive end of first drive cylinder is hinged with connecting arm, connecting arm is equipped with second drive cylinder 225, telescopic arm 223 includes telescopic shell 2231 and the sub telescopic arm 2232 installed in telescopic shell 2231, telescopic shell 2231 is hinged with the end of connecting arm 222 away from telescopic reference arm 221 and can swing around second axis around telescopic connecting arm, the drive end of second drive cylinder 225 is hinged with telescopic shell 2231, sub telescopic arm 2232 can be telescopic relative to telescopic shell 2231, sub telescopic arm 2232 is used to be connected with hoisting device 400;

[0034] Drive assembly 260 includes hydraulic oil tank 261, hydraulic pump 262 and drive motor 263, drive motor 263 is drivingly connected with hydraulic pump 262, hydraulic oil tank 261 is connected with hydraulic pump 262, first drive cylinder 224 and second drive cylinder 225 are connected with hydraulic pump 262, drive motor 263 controls the start-stop of hydraulic pump 262, to control the start-stop of first drive cylinder 224 and second drive cylinder 225.

[0035] It can be understood that, in the embodiment, the start-stop of hydraulic pump 262 is driven by drive motor 263, so as to control the start-stop of first drive cylinder 224 and second drive cylinder 225, by driving hydraulic pump 262 by drive motor 263, drive motor 263 can be stepless speed-regulated by frequency converter (VFD), so as to realize accurate control of the output flow of hydraulic pump 262. Thus, the pressure and flow rate of the hydraulic system can be dynamically adjusted according to actual needs, improving the flexibility and responsiveness of drive assembly 260 in driving arm group 220 to start and stop. Moreover, the motor drive system can quickly respond to changes under different working conditions, whether it is starting, stopping or speed changing operation, it can quickly reach a stable state, meeting the needs of various complex applications. Thus, the efficiency of hoisting battery is improved.

[0036] Compared with internal combustion engine or other mechanical transmission mode, the system structure of drive motor 263 directly driving hydraulic pump 262 is more simple and compact, reduces the number and complexity of vulnerable parts, and reduces the failure rate and maintenance workload.

[0037] And, in the embodiment, the preset axis is perpendicular to the horizontal plane, and the first axis and the second axis are parallel to the horizontal plane, that is, the rotating base 210 can drive the arm group 220 to rotate in the horizontal direction, improving the coverage range of the arm group 220, and the connecting arm 222 can swing relative to the reference arm 221 around the first axis, and the telescopic shell 2231 can also rotate relative to the connecting arm 222 around the second axis, so that the connecting arm 222 and the telescopic shell 2231 can be made to pitch, that is, two-stage pitching can improve the coverage range of the sub-telescopic arm 2232, thereby ensuring the coverage range of the hoisting device 400 connected with the sub-telescopic arm 2232, to improve the efficiency of the hoisting device 400 in hoisting the battery. Through the arrangement of the sub-telescopic arm 2232, the length of the sub-telescopic arm 2232 in the extended and retracted state further improves the coverage range of the hoisting device 400, to improve the efficiency of the hoisting device 400 in hoisting the battery.

[0038] And, the connecting arm 222 and the telescopic arm 223 can be respectively accommodated or unfolded under the action of the first drive oil cylinder 224 and the second drive oil cylinder 225, so as to ensure that the arm group 220 has a smaller occupied space in a non-working state.

[0039] In detail, in the embodiment, the telescopic shell 2231 is provided with a telescopic oil cylinder 226, which is used to drive the sub-telescopic arm 2232 to telescope relative to the telescopic shell 2231. The telescopic oil cylinder 226 is connected with the hydraulic oil tank 261 and the hydraulic pump 262. It can be understood that the hydraulic pump 262 can pass hydraulic oil into the telescopic oil cylinder 226, so that the driving end of the telescopic oil cylinder 226 drives the sub-telescopic arm 2232 to extend. It can be understood that the hydraulic oil in the telescopic oil cylinder 226 can also flow back to the hydraulic oil tank 261. Through the arrangement of the telescopic oil cylinder 226, sufficient force can be ensured to drive the sub-telescopic arm 2232 to telescope relative to the telescopic shell 2231.

[0040] It should be noted that the hydraulic pump 262 can be connected with the first drive oil cylinder 224 through a first pipeline, wherein the first pipeline can be provided with a first valve body, and the oil flow to the first drive oil cylinder 224 can be adjusted through the first valve body. The hydraulic pump 262 can be connected with the second drive oil cylinder 225 through a second pipeline, and the second pipeline can be provided with a second valve body. Similarly, the oil flow to the second drive oil cylinder 225 can be adjusted through the second valve body. The hydraulic pump 262 can be connected with the telescopic oil cylinder 226 through a third pipeline, and the third pipeline can be provided with a third valve body. Similarly, the oil flow to the telescopic oil cylinder 226 can be adjusted through the third valve body.

[0041] It can be understood that, in order to ensure the accuracy of the hoisting device 400 in hoisting the battery and improve the hoisting efficiency of the battery, it is necessary to ensure the stability of the arm group 220 during operation, that is, to reduce the shaking of the arm group 220 during movement.

[0042] Optionally, in some embodiments, a proportional valve or a servo valve is installed on the first pipeline, that is, the first valve body is a proportional valve or a servo valve, and the response speed of the first valve body can be improved to reduce the delay and reduce the jitter of the entire arm group 220 when the connecting arm 222 moves.

[0043] Optionally, in some embodiments, a proportional valve or a servo valve is installed on the second pipeline, that is, the second valve body is a proportional valve or a servo valve, and the response speed of the second valve body can be improved to reduce the delay and reduce the jitter of the entire arm group 220 when the telescopic shell 2231 moves.

[0044] In some other embodiments, at least one of the first pipeline, the second pipeline, or the oil inlet of the hydraulic pump 262 is provided with an accumulator. It can be understood that the accumulator can absorb transient pressure fluctuations, thereby reducing the jitter amplitude of the arm group 220 during operation.

[0045] Of course, in some other embodiments, in order to reduce the jitter amplitude of the arm group 220 during operation, a hydraulic damper or a rubber shock absorber can also be installed on at least one of the connecting arm 222, the reference arm 221, and the rotating base 210 to absorb the vibration energy of the connecting arm 222 or the telescopic shell 2231 during swinging.

[0046] Optionally, at least one of the reference arm 221, the connecting arm 222, and the telescopic shell 2231 is provided with a reinforcing rib 270. In this embodiment, the reference arm 221, the connecting arm 222, and the telescopic shell 2231 are all provided with reinforcing ribs 270. It can be understood that the reinforcing ribs 270 can increase the rigidity of the reference arm 221, the connecting arm 222, or the telescopic shell 2231 to reduce the jitter of the arm group 220 during operation.

[0047] Of course, in some embodiments, a wind speed sensor can also be installed on the telescopic shell 2231, and the wind speed sensor is used to detect the wind speed. It can be understood that when the wind speed sensor detects that the wind speed exceeds a safety threshold, the battery replacement vehicle 1 can be controlled to stop the lifting operation.

[0048] In detail, in this embodiment, the reference arm 221 is provided with a first sensor 230 at the end away from the rotating base 210, the first sensor 230 is in communication connection with the rotating base 210, and the first sensor 230 is used to detect the rotation angle of the reference arm 221.

[0049] It can be understood that the rotating base 210 comprises a base body and a rotating driving member, both of which are used to be mounted on the vehicle body 100, and the rotating driving member is used to drive the base body to rotate around a preset axis, wherein the reference arm 221 is mounted on the base body, the rotating driving member is in communication connection with the first sensor 230, and the rotating driving member can drive the base body to drive the arm group 220 to rotate to a target angle with high precision.

[0050] Optionally, in some embodiments, the second sensor 240 is mounted at one end of the connecting arm 222 away from the reference arm 221, and the second sensor 240 is used to detect the swing angle of the connecting arm 222. Through the arrangement of the second sensor 240, the angle of the connecting arm 222 relative to the first axis can be fed back, so as to ensure the accuracy of the hoisting device 400 for hoisting the battery, thereby improving the efficiency of the hoisting device 400 for hoisting the battery.

[0051] It can be understood that the first sensor 230 and the second sensor 240 are both angle sensors.

[0052] Optionally, in some embodiments, an angle sensor can also be mounted at one end of the telescopic shell 2231 away from the connecting arm 222.

[0053] Optionally, in the embodiment, the third sensor 250 is mounted on the telescopic shell 2231, and the third sensor 250 is used to detect the telescopic length of the sub-telescopic arm 2232. Through the arrangement of the third sensor 250, the telescopic length of the sub-telescopic arm 2232 relative to the telescopic shell 2231 can be fed back, so as to ensure the accuracy of the hoisting device 400 for hoisting the battery.

[0054] In detail, in the embodiment, the driving assembly 260 comprises a heat exchange module 264, which is used to adjust the temperature of the hydraulic oil in the hydraulic oil tank 261. It can be understood that, through the arrangement of the heat exchange module 264, the over-heating or over-cooling of the hydraulic oil in the hydraulic oil tank 261 can be avoided, and the normal operation of the arm group 220 driven by the driving assembly 260 is ensured.

[0055] Optionally, in some embodiments, the heat exchange module 264 comprises a heat dissipation fan, which is mounted on the hydraulic oil tank 261. The heat exchange module 264 adjusts the temperature of the hydraulic oil in the hydraulic oil tank 261 through the heat dissipation fan. In the process of returning the hydraulic oil in the first driving oil cylinder 224, the second driving oil cylinder 225 or the telescopic oil cylinder 226 to the hydraulic oil tank 261 through the return pipe, the heat dissipation fan can heat exchange with the return pipe to reduce the temperature of the hydraulic oil in the return pipe, thereby reducing the temperature of the hydraulic oil in the hydraulic oil tank 261.

[0056] Of course, in some other embodiments, the heat exchange module 264 can also include a heating element, which can be a PTC heating element, so as to heat the hydraulic oil in the hydraulic oil tank 261, avoid the hydraulic oil in the hydraulic oil tank 261 from being supercooled, and ensure that the arm group 220 normally operates under the driving of the driving assembly 260.

[0057] The utility model embodiment further provides a battery replacement vehicle 1, and the battery replacement vehicle 1 comprises the above-mentioned lifting arm 200 for battery replacement vehicle 1. In detail, the battery replacement vehicle 1 further comprises a vehicle body 100 and an industrial computer 300, the base body, the driving assembly 260 and the industrial computer 300 in the lifting arm 200 are all installed on the vehicle body 100, the end of the sub-telescopic rod in the lifting arm 200 is connected with a hoisting device 400, and the industrial computer 300 can be in communication connection with the above-mentioned first valve body, second valve body, third valve body, first sensor 230, second sensor 240, third sensor 250 and driving motor 263.

[0058] In summary, the utility model embodiment provides a battery replacement vehicle 1 and a lifting arm 200 for battery replacement vehicle 1, and the battery replacement vehicle 1 comprises the lifting arm 200, the lifting arm 200 comprises a rotating base 210, an arm group 220 and a driving assembly 260, the arm group 220 comprises a reference arm 221, a connecting arm 222 and a telescopic arm 223 connected in sequence, the reference arm 221 is installed on the rotating base 210 and is installed with a first driving oil cylinder 224, the first driving oil cylinder 224 can drive the connecting arm 222 to swing in pitching relative to the reference arm 221, the connecting arm 222 is installed with a second driving oil cylinder 225, the telescopic arm 223 comprises a telescopic shell 2231 and a sub-telescopic arm 2232, the second driving oil cylinder 225 can drive the telescopic shell 2231 to swing in pitching relative to the connecting arm 222, and the sub-telescopic arm 2232 can be telescopic relative to the telescopic shell 2231, the driving assembly 260 comprises a hydraulic oil tank 261, a hydraulic pump 262 and a driving motor 263, the driving motor 263 is used for controlling the hydraulic pump 262 to start and stop, so as to control the first driving oil cylinder 224 and the second driving oil cylinder 225 to start and stop. The driving motor 263 can realize accurate control on the output flow of the hydraulic pump 262. The flexibility and responsiveness of the driving assembly 260 driving the arm group 220 to start and stop are improved. Therefore, the efficiency of hoisting the battery is improved.

[0059] The above merely provides a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, and any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A boom for a battery swapping vehicle, characterized in that, include: A rotating base is used to be installed on the body of the battery swapping vehicle and can rotate relative to the body about a preset axis. The boom assembly includes a reference boom, a connecting boom, and a telescopic boom connected in sequence. The reference boom is mounted on the rotating base and is equipped with a first drive cylinder. The connecting boom is hinged to the reference boom and can swing relative to the reference boom around a first axis. The drive end of the first drive cylinder is hinged to the connecting boom. The connecting boom is equipped with a second drive cylinder. The telescopic boom includes a telescopic housing and a sub-telescopic boom installed in the telescopic housing. The telescopic housing is hinged to the end of the connecting boom away from the telescopic reference boom and can swing around the telescopic connecting boom around a second axis. The drive end of the second drive cylinder is hinged to the telescopic housing. The sub-telescopic boom can extend and retract relative to the telescopic housing. The sub-telescopic boom is connected to a lifting device. The preset axis is perpendicular to the horizontal plane, and the first axis and the second axis are parallel to the horizontal plane. The drive assembly includes a hydraulic tank, a hydraulic pump, and a drive motor. The drive motor is connected to the hydraulic pump, the hydraulic tank is connected to the hydraulic pump, a first drive cylinder and a second drive cylinder are connected to the hydraulic pump, and the drive motor controls the start and stop of the hydraulic pump to control the start and stop of the first drive cylinder and the second drive cylinder.

2. The boom for the battery swapping vehicle according to claim 1, characterized in that: The telescopic shell is equipped with a telescopic cylinder, which is used to drive the sub-telescopic arm to extend and retract relative to the telescopic shell. The telescopic cylinder is connected to the hydraulic oil tank and the hydraulic pump.

3. The boom for the battery swapping vehicle according to claim 1, characterized in that: A first sensor is installed on the end of the reference arm away from the rotating base. The first sensor is communicatively connected to the rotating base and is used to detect the rotation angle of the reference arm.

4. The boom for the battery swapping vehicle according to claim 1, characterized in that: A second sensor is installed at the end of the connecting arm away from the reference arm. The second sensor is used to detect the swing angle of the connecting arm.

5. The boom for the battery swapping vehicle according to claim 1, characterized in that: A third sensor is installed on the telescopic shell, which is used to detect the telescopic length of the sub-telescopic arm.

6. The boom for the battery swapping vehicle according to claim 1, characterized in that: The drive assembly also includes a heat exchange module, which is used to regulate the temperature of the hydraulic oil in the hydraulic tank.

7. The boom for the battery swapping vehicle according to claim 6, characterized in that: The heat exchange module includes a cooling fan, which is installed in the hydraulic oil tank. The heat exchange module regulates the temperature of the hydraulic oil in the hydraulic oil tank through the cooling fan.

8. The boom for the battery swapping vehicle according to claim 1, characterized in that: At least one of the reference arm, the connecting arm, and the telescopic shell is provided with a reinforcing rib.

9. The boom for the battery swapping vehicle according to claim 1, characterized in that: The hydraulic pump is connected to the first drive cylinder through a first pipeline, and an accumulator is installed on the first pipeline, or a proportional valve or servo valve is installed on the first pipeline. And / or, the hydraulic pump is connected to the second drive cylinder via a second pipeline, an accumulator is installed on the second pipeline, or a proportional valve or servo valve is installed on the second pipeline; And / or an accumulator is installed at the oil inlet of the hydraulic pump.

10. A battery swapping vehicle, characterized in that, Includes the boom for the battery swapping vehicle as described in any one of claims 1-9.

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