A battery loading and unloading device and an engineering vehicle

Abstract

The present invention discloses a battery loading and unloading device and an engineering vehicle, belonging to the field of engineering equipment. The battery loading and unloading device of the present invention includes a vehicle frame main body, a hoisting member, and a lifting mechanism. Both ends of the hoisting belt of the hoisting member are detachably connected to the battery main body. The lifting mechanism includes a lifting member hinged to the vehicle frame main body and a driving member; the driving member drives the lifting member to rotate relative to the vehicle frame main body, so that the hoisting member cooperating with the hoisting beam hoists the battery body, and then the battery body moves relative to the vehicle frame main body along with the lifting member, realizing the loading / dismantling of the battery body. The engineering vehicle equipped with the battery loading and unloading device of the present invention does not require an additional assembly vehicle for battery replacement, has relatively low requirements for the working condition environment, and the battery replacement process is simple and has high efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering equipment, and more particularly to a battery loading and unloading device and an engineering vehicle. Background Art

[0002] With the increasing scarcity of energy resources and a growing emphasis on environmental protection, the fossil fuels typically used in construction vehicles, such as gasoline and diesel, are gradually being replaced by power batteries. Consequently, power batteries are poised to become the primary energy supply component for construction vehicles.

[0003] When using power batteries as energy supply components for construction vehicles, on the one hand, construction vehicles have high power and require large-capacity batteries to provide energy; on the other hand, due to the limited capacity of a single battery pack, multiple battery packs are often required to provide power. Therefore, as the number of batteries increases, the volume and weight of the battery pack increase significantly. At the same time, due to the limitations of energy density, the battery's operating time after a full charge is limited, and when the energy consumption reaches a certain level, the battery must be recharged.

[0004] Generally speaking, when directly charging the power battery of an engineering vehicle without replacing the battery pack, the engineering vehicle needs to go to a fixed charging location, and the engineering vehicle cannot continue to work during charging. Therefore, this method greatly reduces the working efficiency of the engineering vehicle.

[0005] To solve the above problems, replacing batteries for construction vehicles is the most economical and effective way. However, for such large and heavy batteries, how to quickly, safely and stably load and replace batteries is a technical problem that needs to be solved urgently in the relevant field.

[0006] Currently, the commonly used loading and unloading methods are lifting equipment or forklifts, both of which require additional equipment. For example, the invention is titled "A battery assembly for engineering vehicles" (application number 2016100240432). The battery assembly in this application includes a battery body, a hooking portion, a limiting portion, a lifting support mechanism, and a rolling mechanism. The hooking portion is provided at one end of the battery body, the limiting portion is provided at the other end of the battery body, and the lifting support mechanism and the rolling mechanism are provided at the bottom of the battery body.

[0007] However, using a crane for lifting requires a large lifting space. Loading and unloading batteries with a forklift requires a relatively flat surface, and the forklift's range of motion is slightly larger. If the forklift is equipped with attachments and the battery is hoisted using a lifting beam, the forklift mast must be raised to a certain height, also requiring a large space. Therefore, using a crane for lifting or forklifts for loading and unloading batteries requires a high working environment, is costly, and is inconvenient.

[0008] In addition, during operation, construction vehicles are subject to significant vibrations and impacts. If the battery is not securely fixed, it is extremely likely to slide relative to the vehicle frame and collide with the surrounding structures, causing damage to the internal components of the battery pack. Conversely, if the battery pack is firmly fixed to the vehicle and tends to be rigidly connected, the vibrations and impacts of the vehicle will be transmitted to the battery pack, which is also likely to cause damage to the internal components. At the same time, if the fixing of the battery pack to the vehicle cannot be quickly released, it will affect the disassembly and replacement of the battery pack and reduce work efficiency. Summary of the Invention

[0009] 1. Technical problems to be solved by the invention

[0010] The purpose of the present invention is to overcome the deficiencies in the prior art that the replacement process of the power battery of construction vehicles has high requirements for working conditions and is not convenient enough, and to provide a battery loading and unloading device. The lifting member of this solution rotates relative to the frame body under the drive of the driving member, so that the lifting beam acts on the lifting belt, thereby lifting the battery body and loading / unloading it at the installation position, completing the replacement of the battery body. The process is simple and the operation is convenient.

[0011] Another purpose of the present invention is to provide a construction vehicle. For the construction vehicle of this solution, a battery loading and unloading device for replacing the battery is provided on the vehicle body. Therefore, there is no need to additionally configure an assembly vehicle for battery replacement. It has low requirements for working conditions, and the replacement process is simple and efficient.

[0012] 2. Technical solution

[0013] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0014] A battery loading and unloading device of the present invention includes:

[0015] A frame body, which has an installation position for placing the battery body;

[0016] A lifting member, with both ends of the lifting belt of the lifting member detachably connected to the battery body;

[0017] A lifting mechanism, which includes a lifting member hinged to the frame body and a driving member;

[0018] The driving member drives the lifting member to rotate relative to the frame body. The lifting beam of the lifting member cooperates with the lifting belt, so that the battery body is lifted and the battery body is transported to the installation position or output from the installation position, thereby realizing the loading / unloading of the battery body relative to the installation position.

[0019] Further, the lifting member includes two support arms hinged on different sides of the mounting position, and both ends of the lifting beam are respectively connected to the free ends of the two support arms; the lifting beam is arranged parallel to the upper side surface of the battery body.

[0020] Further, the support arm includes a first support section, and a second support section and a third support section are arranged at both ends of the first support section. The free end of the second support section extends towards the vehicle frame body and is hinged to the vehicle frame body, and the free end of the third support section extends away from the vehicle frame body and is connected to the lifting beam.

[0021] Further, the support arm is hinged to the moving end of the driving member at a position close to the connection point between the first support section and the second support section.

[0022] Further, it further includes a second fixing member. The second fixing member includes a second fixing portion, and a fixing bracket is arranged at each end of the second fixing portion. The two fixing brackets are respectively hinged to the two support arms; when the second fixing portion is in the fixed position, it has a tendency to force the battery body to be in close contact with the front side wall of the vehicle frame body, that is, at least the part of the second fixing portion in contact with the battery body is made of an elastic material.

[0023] Further, a first fixing member is arranged on the lifting beam. The first fixing member includes a fixing support and a first fixing portion arranged on the fixing support, and the shape of the first fixing portion corresponds to the shape of the upper side edge of the battery body.

[0024] Further, two first fixing members are provided, and the two first fixing members are arranged oppositely, and the two first fixing members have a tendency to clamp the battery body, that is, at least the part of the first fixing portion in contact with the battery body is made of an elastic material.

[0025] Further, a first limiting member is arranged on the inner side surface of the front side wall of the vehicle frame body, and the first limiting member is used to limit the displacement of the battery body in the first direction; and / or,

[0026] A second limiting member is arranged on the inner side surface of the lower side wall of the vehicle frame body, and the second limiting member is used to limit the displacement of the battery body in the third direction.

[0027] Further, the first limiting member and the second limiting member are rubber plates; or,

[0028] A rubber plate is arranged on the side of the first limiting member close to the battery body and on the side of the second limiting member close to the battery body.

[0029] An engineering vehicle is powered by a battery body. The battery loading and unloading device described above is provided on the vehicle body of the engineering vehicle, and the battery body is loaded / unloaded by the battery loading and unloading device.

[0030] 3. Beneficial effects

[0031] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0032] (1) For the battery loading and unloading device of the present invention, the driving member drives the lifting member to rotate relative to the vehicle frame body, so that the lifting member cooperating with the lifting beam lifts the battery body, and then the battery body moves relative to the vehicle frame body along with the lifting member, realizing the loading / unloading of the battery body relative to the installation position. The loading / unloading process of the battery body by the battery loading and unloading device of the present invention is relatively simple, and the loading / unloading efficiency is relatively high, thereby improving the construction efficiency of the engineering vehicle equipped with the battery loading and unloading device of the present invention.

[0033] (2) In the present invention, the fixing bracket of the first fixing member is hinged on the support arm, so that when the battery body is placed at the installation position, the first fixing portion of the first fixing member can rotate relative to the battery body to force the battery body to abut against the first limiting member, realizing the fixing of the battery body in the first direction; the two second fixing members are oppositely arranged on the lifting beam. When the battery body is placed at the installation position, the two second fixing members cooperate to clamp the battery body, realizing the fixing of the battery body in the second direction. At the same time, the second fixing member also has a tendency to abut the battery body against the second limiting member, realizing the fixing of the battery body in the third direction. Therefore, in the present invention, the battery body is fixed in three directions, so that the battery body will not fall off or be damaged due to bumps, vibrations and impacts during the construction process of the engineering vehicle.

[0034] (3) For the engineering vehicle of the present invention, the battery unloading device is provided on the vehicle body, so that it can realize the loading / unloading of the battery body used as a power battery by itself, and there is no need to configure an additional assembly vehicle for battery replacement, enabling the engineering vehicle of the present invention to adapt to a more complex working condition environment, and at the same time, it can also greatly improve the construction efficiency of the engineering vehicle of the present invention. Description of the drawings

[0035] Figure 1 It is a schematic structural diagram of the battery body in the present invention;

[0036] Figure 2 It is a schematic structural diagram of the battery loading and unloading device of the present invention;

[0037] Figure 3 It is a schematic diagram of the lifting method of the lifting member in the present invention;

[0038] Figure 4 Schematic structural diagram of the limit mechanism in the present invention;

[0039] Figure 5 Schematic structural diagram of the lifting mechanism and the fixing mechanism in the present invention;

[0040] Figure 6 Schematic structural diagram of the lifting member in the present invention;

[0041] Figure 7 Schematic structural diagram of the first fixing member in the present invention;

[0042] Figure 8 Schematic structural diagram of the first fixing portion in the present invention;

[0043] Figure 9 Schematic structural diagram of the second fixing member in the present invention;

[0044] Figure 10 Schematic diagram of the loading / dismounting process of the battery loading and unloading device in the present invention.

[0045] Explanation of the reference numerals in the schematic diagram: 100, battery main body; 110, lifting lug; 200, hoisting member; 210, shackle; 220, hoisting belt; 300, vehicle frame main body; 310, second hinge seat; 320, first hinge seat; 400, limit mechanism; 410, first limiting member; 420, second limiting member; 500, lifting mechanism; 510, lifting member; 511, support arm; 512, lifting beam; 520, driving member; 530, first pin shaft; 540, second pin shaft; 550, third pin shaft; 600, fixing mechanism; 610, first fixing member; 611, fixing support; 612, bushing; 613, first fixing portion; 620, second fixing member; 621 fixing bracket; 622, second fixing portion. Detailed implementation manners

[0046] To further understand the content of the present invention, the present invention will be described in detail in combination with the drawings and embodiments.

[0047] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the implementable conditions of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of clear narration and are not used to limit the implementable scope. The change or adjustment of their relative relationships, without substantial change of the technical content, should also be regarded as the implementable scope of the present invention.

[0048] Referring to Figure 1 , in the related art, as a power battery used as an energy supply unit of an engineering vehicle, it generally has a large weight, a large volume, and is difficult to install. Therefore, in order to facilitate the installation of the power battery, corresponding clamping parts or lifting parts can be provided on the battery main body 100 of the power battery. For example, in the present embodiment, lifting lugs 110 can be provided on the upper side surface of the battery main body 100, and the lifting lugs 110 can cooperate with the shackles 210 of the lifting member 200, so that the corresponding lifting mechanism can lift the battery main body 100 by acting on the lifting belt 220 connected between the shackles 210, realizing the loading / dismounting of the battery main body 100.

[0049] In order to prevent the battery main body 100 from being knocked and damaged during lifting, loading and unloading, and improve the stability of the battery main body 100 during lifting, loading and unloading, multiple lifting lugs 110 can be provided on the battery main body 100, for example, four. The four lifting lugs 110 are arranged in pairs on the upper side surface of the battery main body 100. At the same time, the lifting member 200 is provided with two lifting belts 220, and both ends of each lifting belt 220 are respectively connected to one of the four lifting lugs 110, so that the two lifting belts 220 are parallel to each other and parallel to the length direction of the battery main body 100.

[0050] Embodiment 1

[0051] The battery loading and unloading device of the present embodiment can be used as a vehicle-mounted device of an engineering vehicle, and can load / dismount the power battery used as an energy supply unit of the engineering vehicle, so that there is no need to additionally equip an assembly vehicle to replace the battery on the engineering vehicle, reducing the requirements of the engineering vehicle for the working condition environment, and reducing the use of the space around the vehicle and the dependence on auxiliary equipment due to battery replacement.

[0052] Specifically, referring to Figure 2 , the battery loading and unloading device of the present embodiment can include a lifting member 200, a frame main body 300 and a lifting mechanism 500. Among them, the lifting member 200 is detachably installed on the upper side surface of the battery main body 100. Specifically, both ends of the lifting belt 220 of the lifting member 200 are detachably connected to the lifting lugs 110 on the upper side surface of the battery main body 100, for example, the detachable connection is realized through the shackles 210; an installation position for placing the battery main body 100 is provided on the frame main body 300; the lifting mechanism 500 includes a lifting member 510 hinged on the frame main body 300 and a driving member 520 for driving the lifting member 510 to rotate. The driving member 520 can be a cylinder, a motor or a hydraulic cylinder, preferably a hydraulic cylinder. The lifting member 510 has a lifting beam 512 that can cooperate with the lifting belt 220.

[0053] Referring to Figure 2 and Figure 3, for the battery loading and unloading device of this embodiment, the driving member 520 drives the lifting member 510 to rotate relative to the vehicle frame main body 300, so that the lifting beam 512 acts on the lifting belt 220 to lift the battery main body 100. The driving member 520 continues to drive the lifting member 510 actively, and the battery main body 100 is placed on the installation position or lifted off the installation position, thereby completing the loading / unloading of the power battery.

[0054] Referring to Figure 4 , a first hinge seat 320 and a second hinge seat 310 are provided on the vehicle frame main body 300. The first hinge seat 320 is used for hinging with the lifting member 510, and the second hinge seat 310 is used for hinging with the driving member 520.

[0055] Referring to Figure 5 , in this embodiment, the lifting member 510 may specifically include a lifting beam 512 and two support arms 511 located on different sides of the lifting beam 512. At the same time, the two support arms 511 may be located on different sides of the installation position. The two ends of the lifting beam 512 are respectively hinged to the two support arms 511, so that the battery main body 100 is located between the two support arms 511. The lifting beam 512 is arranged parallel to the upper side surface of the battery main body 100 to improve the stability during the loading and unloading of the battery main body 100.

[0056] One end of the support arm 511 far from the lifting beam 512 is hinged to the vehicle frame main body 300, specifically, it can be hinged to the first hinge seat 320 through the first pin shaft 530; each support arm 511 can be driven by a separate driving member 520, and the driving member 520 is hinged to the second hinge seat 310 through the second pin shaft 540. Therefore, two first hinge seats 320 and two second hinge seats 310 are provided on the vehicle frame main body 300. The two first hinge seats 320 can be distributed on both sides of the installation position close to the rear end of the vehicle frame main body 300, and the two second hinge seats 310 can be distributed on both sides of the installation position close to the front end of the vehicle frame main body 300.

[0057] Referring to Figure 6 , the support arm 511 includes a first support section, a second support section and a third support section. The second support section and the third support section are connected to both ends of the first support section. The free end of the second support section extends towards the vehicle frame main body 300 and is hinged to the vehicle frame main body 300, specifically, it is hinged to the first hinge seat 320 through the first pin shaft 530; the free end of the third support section extends away from the vehicle frame main body 300 and is connected to one end of the lifting beam 512. The angles formed between the first support section and the second support section, and between the first support section and the third support section are both obtuse angles, thereby improving the overall strength of the support arm 511 and preventing the support arm 511 from being bent and damaged when lifting the battery main body 100.

[0058] The first support segment is hinged to the moving end of the driving member 520 at a position near the connection point of the first support segment and the second support segment. Specifically, a hinge portion may be provided at a position on the first support segment near the connection point of the first support segment and the second support segment. The hinge portion protrudes from the support arm 511, and the moving end of the driving member 520 is hinged to the hinge portion through a third pin shaft 550.

[0059] This embodiment also provides an engineering vehicle, on which a battery loading and unloading device is provided, enabling the vehicle itself to load / unload the battery main body used as a power battery, without the need to configure an additional assembly vehicle for battery replacement. This makes the engineering vehicle of the present invention capable of adapting to more complex working conditions and greatly improving the construction efficiency of the engineering vehicle of the present invention.

[0060] Embodiment 2

[0061] When the engineering vehicle is working, the vibration and impact are relatively large. If the power battery is not fixed reliably, it is very easy to slide relative to the frame main body 300 and collide with other structures on the frame main body 300, causing damage to the internal components of the battery pack.

[0062] To solve the above problems, the battery loading and unloading device of this embodiment further includes a fixing mechanism 600 for fixing the battery main body 100. The fixing mechanism 600 includes a first fixing member 610 provided on the lifting beam 512 and a second fixing member 620 provided on the support arm 511. The first fixing member 610 is used to restrict the movement of the battery main body 100 in the first direction and the second direction, and the second fixing member 620 is used to restrict the movement of the battery main body 100 in the third direction, thereby fixing the battery main body 100 in three directions and preventing the battery main body 100 from sliding relative to the frame main body 300.

[0063] Among them, the first direction is the direction perpendicular to the lower side wall of the frame main body 300, and the first direction may specifically be the height direction of the battery main body 100; the third direction is the direction perpendicular to the lifting beam 512, and at the same time the third direction is perpendicular to the first direction, and the third direction may specifically be the length direction of the battery main body 100; the second direction is perpendicular to the first direction and perpendicular to the third direction at the same time, and the second direction may specifically be the width direction of the battery main body 100.

[0064] Specifically, referring to Figure 7 and Figure 8, the first fixing member 610 includes a fixing support 611 and a first fixing portion provided on the fixing support 611. The shape of the first fixing portion corresponds to the shape of the upper side edge of the battery body 100. Specifically, the first fixing portion may be L-shaped and includes a first surface parallel to the battery body 100 and a second surface perpendicular to the first surface. When the battery body 100 is placed in the installation position, the first fixing portion contacts the upper side edge of the battery body 100, and at the same time presses the battery body 100 against the lower side wall of the vehicle frame body 300, so as to realize the fixing of the battery body 100 in the first direction.

[0065] A sleeve may be opened on the fixing support 611, and a bushing 612 is arranged in the sleeve. There is an interference connection between the bushing 612 and the inner side wall of the sleeve. The fixing support 611 can be hinged to the lifting beam 512 through the bushing 612, so that under the action of its own gravity, the fixing support 611 can rotate relative to the lifting beam 512 when the lifting beam 512 rotates relative to the vehicle frame body 300, so that the first surface of the fixing support 611 is always parallel to the upper side surface of the battery body 100.

[0066] A flange is arranged on one side of the fixing support 611 close to the lifting belt 220. The flange can prevent the lifting belt 220 from slipping off the lifting beam 512, so as to prevent the battery body 100 from slipping during the loading / unloading process.

[0067] The first fixing member 610 may also be provided with two. The two first fixing members 610 may be arranged oppositely and are respectively located on both sides of the battery body 100. At the same time, the first fixing portion 613 of the first fixing member 610 faces the battery body 100, so that the two first fixing members 610 have a tendency to clamp the battery body 100. Specifically, two L-shaped first fixing portions may press from different sides of the battery body 100 to realize clamping, and further realize the fixing of the battery body 100 in the first direction.

[0068] Refer to Figure 9 , the second fixing member 620 may specifically include a second fixing portion 622 and two fixing brackets 621 located on different sides of the second fixing portion 622. One end of the fixing bracket 621 is connected to the second fixing portion 622, and the other end of the fixing bracket 621 is hinged to the support arm 511, specifically, it may be hinged at the connection of the first support section and the third support section of the support arm 511. The second fixing member 620 as a whole can rotate relative to the support arm 511. When the battery body 100 is placed in the installation position, the second fixing portion 622 rotates to the fixed position and contacts one side surface of the battery body 100, forcing the battery body 100 to press against the front side wall of the vehicle frame body 300, so as to realize the fixing of the battery body 100 in the third direction.

[0069] In addition, if the power battery is firmly fixed to the frame body 300 and tends to be rigidly connected, the vibration and impact of the engineering vehicle will be transmitted to the battery body 100, which is likely to cause damage to its internal components. At the same time, if the fixing mechanism 600 for the battery body 100 cannot be quickly released, the loading / unloading efficiency of the battery body 100 will be affected. Therefore, to solve the above problems, the lower side wall of the first fixing portion 613 of the first fixing member 610 and the side wall of the second fixing portion 622 of the second fixing member 620 in contact with the battery body 100 can both be made of an elastic material, so as to be able to buffer the battery body 100. At the same time, after the first fixing portion 613 and the second fixing portion 622 fix the battery body 100, the amount of compression generated by the first fixing portion 613 and the second fixing portion 622 should be within the elastic deformation range of the elastic material, so as to ensure that the first fixing portion 613 and the second fixing portion 622 can play a good fixing role on the battery body 100.

[0070] Specifically, as a possible implementation manner, the lower side wall of the first fixing portion 613 of the first fixing member 610 and the side wall of the second fixing member 620 in contact with the battery body 100 can both be made of a rubber material, that is, at least the side walls of the first fixing portion 613 of the first fixing member 610 and the second fixing member 620 in contact with the battery body are made of an elastic material.

[0071] As another possible implementation manner, rubber plates can be provided on the lower side wall of the first fixing portion 613 of the first fixing member 610 and the side wall of the second fixing member 620 in contact with the battery body 100, and the hardness of the rubber plates is between 50 and 70A Shore hardness.

[0072] In addition, to further improve the fixing effect of the second fixing member 620 on the battery body, the side wall of the fixing bracket 621 in contact with the battery body 100 can be made of an elastic material, or a rubber plate can be provided on the side wall of the fixing bracket 621 in contact with the battery body 100, so that when the second fixing member 620 is in the fixed position, the two fixing brackets 621 have a tendency to clamp the battery body 100.

[0073] As a further optimization, a limiting mechanism 400 can also be provided on the battery loading and unloading device. When the battery loading and unloading device places the battery body 100 at the installation position, the limiting mechanism 400 can limit the battery body 100, thereby changing the movement direction of the battery body 100 and facilitating the installation of the battery body 100.

[0074] Specifically, refer to Figure 4, the limiting mechanism 400 may specifically include a first limiting member 410 and a second limiting member 420. The first limiting member 410 may be disposed on the inner side surface of the front side wall of the vehicle frame main body 300, and the second limiting member 420 may be disposed on the inner side surface of the lower side wall of the vehicle frame main body 300. The first limiting member 410 is used to limit the displacement of the battery main body 100 in the third direction, and the second limiting member 420 is used to limit the displacement of the battery main body 100 in the first direction.

[0075] The first limiting member 410 and the second limiting member 420 may be made of an elastic material, so as to play a buffering role when the battery main body 100 contacts the first limiting member 410 and the second limiting member 420, preventing the battery main body 100 from being damaged by hitting the vehicle frame main body 300; at the same time, when the battery main body 100 is fixed in the installation position, the first limiting member 410 and the second limiting member 420 can also play a buffering role on the battery main body 100, preventing the vibration impact of the engineering vehicle from damaging the battery main body 100.

[0076] The first limiting member 410 and the second limiting member 420 may be rubber plates made of rubber material, and the hardness of the rubber plate is between 50 and 70A of the Shore hardness, and the compression amount of the first limiting member 410 and the second limiting member 420 is always within the elastic deformation range of the elastic material during the loading process or the fixed state of the battery main body 100.

[0077] In addition, a limiting portion made of an elastic material may be provided on the first limiting member 410 and the second limiting member 420. For example, rubber plates are provided on the side of the first limiting member 410 close to the battery main body 100 and the side of the second limiting member 420 close to the battery main body, and the buffering function is realized through the rubber plates.

[0078] Refer to Figure 10 , the loading process of the battery loading and unloading device of this embodiment for the battery main body may specifically be:

[0079] Step 1. Refer to Figure 10 In the d state in, the battery main body 100 is hoisted from the ground. The lifting beam 512 contacts the lifting belt 220, and the lifting belt 220 is tightened. At this time, the piston rod end cavity of the hydraulic cylinder as the driving member 520 is filled with oil, and the two hydraulic cylinders contract simultaneously to drive the lifting member 510 to rotate upward around the first hinge seat 320. At the same time, the lifting beam 512 will lift the battery main body 100 upward.

[0080] Among them, since the first fixing member 610 can rotate around the lifting beam 512, under the action of its own gravity, the first fixing member 610 remains stationary relative to the battery main body 100, and rotates around the axis of the lifting beam 512 together with the bushing 612, and rises to the highest position along with the lifting beam 512.

[0081] Before the start of Step 1, the second fixing member 620 located at the fixed position needs to be manually rotated to the symmetrical side, that is, the second fixing member 620 is rotated to the side close to the vehicle frame main body 300 to prevent the second fixing member 620 from interfering with the battery main body 100.

[0082] Step 2: Refer to Figure 10 In the c state in [reference], after the lifting mechanism 500 rises to the highest position, the piston rod end cavities of the hydraulic cylinders on both sides continue to be filled with oil, and the lifting beam 512 continues to rotate around the fixed support 611. A balance valve is provided in the oil circuit connected to the rodless cavities of the hydraulic cylinders on both sides, so that the main beam 501 can continue to rotate at a preset angular velocity, and the battery main body 100 begins to gradually descend.

[0083] Step 3: Refer to Figure 10 In the b state in [reference], when the battery main body 100 descends with the lifting mechanism 500 and the fixing mechanism 600, and the side wall of the battery main body 100 contacts the first limiting member 410 of the limiting portion 400, the battery main body 100 moving with the lifting mechanism 500 will be limited and will no longer move in the third direction. Instead, as the lifting mechanism 500 descends in the first direction, the bottom of the battery main body 100 contacts the second limiting member 420, and the movement ends. The battery main body 100 is placed on the installation position of the vehicle frame main body 300.

[0084] After that, the side wall and the bottom of the battery main body 100 will remain in contact with the first limiting member 410 and the second limiting member 420. In addition, during the execution of Step 3, the second fixing member 620 can be manually rotated to the fixed position.

[0085] Step 4: Refer to Figure 10 In the a state in [reference], the battery main body 100 is placed on the installation position and remains stationary. At this time, the rod chambers of the hydraulic cylinders on both sides continue to be filled with oil at the same time, and the lifting beam 512 and the first fixing member 610 of the lifting mechanism 500 continue to descend until the first fixing portion 613 of the first fixing member 610 contacts the upper surface and the side surface of the battery main body 100 and clamps the battery main body 100. At the same time, the second fixing portion 622 is in the installation position.

[0086] After that, the rod chambers of the hydraulic cylinders on both sides continue to be filled with oil at the same time, and the lifting beam 512 drives the first fixing member 610 to apply a certain pressure to the top and the rear side surface of the battery main body 100, so that the first fixing portion 613 is compressed. At the same time, the first limiting member 410 and the second limiting member 420 will also be compressed to a certain extent.

[0087] When the pressure in the rod chambers of the hydraulic cylinders on both sides rises to the preset pressure, the oil inlet is cut off, and the rod chamber oil circuits can be connected to the accumulators, so that the pressure in the rod chambers of the hydraulic cylinders on both sides is stabilized at the preset pressure, firmly fixing the battery main body 100 on the vehicle frame main body 300. At the same time, after the first limiting member 410, the second limiting member 420, the first fixing portion 613, and the second fixing portion 622 are compressed, they play a buffering and protecting role for the battery main body 100, and the accumulators will absorb the vibrations and impacts generated during the operation of the engineering vehicle.

[0088] It should be noted that the accumulator can adopt an accumulator with an energy storage function commonly used in the related field, such as a piston-type accumulator. The structure and implementation manner of the accumulator can be implemented according to the content disclosed in the prior art documents or the manner guided by the manufacturer.

[0089] The disassembly process of the battery loading and unloading device of this embodiment for the battery main body is opposite to its assembly process. During disassembly, the rodless chamber of the hydraulic cylinder is filled with oil, and the piston rod, that is, the moving end of the hydraulic cylinder, pushes the lifting beam 512 and the first fixing member 610 upward, and the first fixing portion 613 of the first fixing member 610 is separated from the surface of the battery main body 100, ending the fixed state of the battery main body 100.

[0090] When the lifting beam 512 contacts and lifts the lifting belt 220, the rodless chamber of the hydraulic cylinder continues to be filled with oil, and the lifting mechanism 500 carries the battery main body 100 and moves outward from the vehicle, that is, moves away from the installation position. When the lifting beam 512 passes the highest position, a balance valve is also provided in the oil circuit connected to the rod chamber of the hydraulic cylinder, so that the lifting beam 512 continues to rotate at a preset angular velocity, and the battery main body 100 begins to gradually descend.

[0091] When the bottom surface of the battery main body 100 contacts the ground or the plane of a handling device such as a tow truck, the battery main body 100 stops moving. At this time, the rodless chamber of the hydraulic cylinder continues to be filled with oil, and the lifting beam 512 continues to descend. The lifting beam 512 no longer has a pulling force on the lifting belt 220, and the lifting belt 220 is no longer taut. At this time, the shackle 210 is manually disassembled to separate the battery main body 100 from the lifting mechanism 500. The battery main body 100 is unloaded onto the handling device and towed away, and the disassembly process ends.

[0092] The above has schematically described the present invention and its implementation manners. This description is not restrictive, and only one of the implementation manners of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A battery loading and unloading device, characterized in that: including, a frame main body (300) having an installation position for placing a battery main body (100); a hoisting member (200) whose two ends of a hoisting belt (220) are detachably connected to the battery main body (100); a lifting mechanism (500) including a lifting member (510) hinged to the frame main body (300) and a driving member (520); the battery loading and unloading device is configured such that the driving member (520) drives the lifting member (510) to rotate relative to the frame main body (300), and a lifting beam (512) of the lifting member (510) cooperates with the hoisting belt (220) to load / unload the battery main body (100) to / from the installation position; a first fixing member (610) is hinged on the lifting beam (512), the first fixing member (610) includes a fixing support (611) and a first fixing portion (613) provided on the fixing support (611), and the shape of the first fixing portion (613) corresponds to the shape of the upper side edge of the battery main body (100); the lifting member (510) includes two support arms (511) hinged on different sides of the installation position; the support arm (511) includes a first support section, and two ends of the first support section are provided with a second support section and a third support section. The free end of the second support section extends towards the frame main body (300) and is hinged to the frame main body (300), and the free end of the third support section extends away from the frame main body (300) and is connected to the lifting beam (512); the angles formed between the first support section and the second support section and between the first support section and the third support section are both obtuse angles; further including a second fixing member (620), the second fixing member (620) includes a second fixing portion (622), and each end of the second fixing portion (622) is provided with a fixing bracket (621), and the two fixing brackets (621) are respectively hinged to the two support arms (511); a first limiting member (410) is provided on the inner side surface of the front side wall of the frame main body (300), and / or a second limiting member (420) is provided on the inner side surface of the lower side wall of the frame main body (300); the first limiting member (410) is used to limit the displacement of the battery main body (100) in a first direction, and the first direction is the height direction of the battery main body; the second limiting member (420) is used to limit the displacement of the battery main body (100) in a third direction, the third direction is perpendicular to the first direction, and the third direction is the length direction of the battery main body.

2. The battery loading and unloading device according to claim 1, wherein: the lifting beam (512) is arranged parallel to the upper side surface of the battery main body (100).

3. The battery loading and unloading device according to claim 2, characterized in that: the support arm (511) is hinged to the moving end of the driving member (520) at a position close to the connection point between the first support section and the second support section.

4. The battery loading and unloading device according to claim 2, characterized in that: when the second fixing portion (622) is in a fixed position, it has a tendency to force the battery main body (100) to be in close contact with the front side wall of the frame main body (300).

5. A battery loading and unloading device according to claim 1, characterized in that: the first fixing members (610) are provided in two, the two first fixing members (610) are arranged oppositely, and the two first fixing members (610) have a tendency to clamp the battery main body (100).

6. The battery loading and unloading device according to claim 1, wherein: The first limiting member (410) and the second limiting member (420) are rubber plates; or, A rubber plate is provided on one side of the first limiting member (410) close to the battery body (100) and on one side of the second limiting member (420) close to the battery body (100).

7. An engineering vehicle powered by a battery main body (100), characterized in that: A battery loading and unloading device according to any one of claims 1 to 6 is provided on the vehicle body of the engineering vehicle, and the battery body (100) is loaded / unloaded by the battery loading and unloading device.

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