New energy automobile chassis maintenance manipulator

Abstract

The invention belongs to the technical field of manipulators, and particularly relates to a new energy automobile chassis maintenance manipulator which comprises a manipulator and a moving vehicle, and the moving vehicle is provided with a frame, a roller assembly and a locking assembly. A shaft tube of the frame is connected with the handle tube and the mounting plate, the manipulator is mounted on the mounting plate, and a wheel shaft of the roller component is arranged in the shaft tube and provided with rollers at two ends. The locking assembly is provided with two sets of corresponding handle pipes, the driving pistons slide in the vertical sections of the handle pipes, the locking pistons can be driven through hydraulic oil in the transverse sections, the front end inserting parts of the locking pistons can be inserted into tooth seams of the gears, and the elastic pieces assist the locking pistons in acting. The mechanical arm can automatically lock the rolling wheels to prevent sliding when placed, the state is switched by lifting and placing the handle pipe when moving, and operation is convenient and fast. The new energy automobile chassis maintenance device improves safety and use efficiency, meets the new energy automobile chassis maintenance requirement, achieves stable placement and moving function switching, is reasonable in structural design, has a good synergistic effect of all assemblies, and powerfully promotes industry development.

Description

Technical Field

[0001] The invention belongs to the technical field of manipulators, and in particular relates to a new energy vehicle chassis maintenance manipulator. Background Art

[0002] As the number of new energy vehicles continues to rise, the demand for chassis maintenance is also increasing. At present, the power battery pack is the largest component installed on the chassis of new energy vehicles, and the fixing bolts need to be removed during maintenance and disassembly. When maintenance personnel operate under the car, there is a risk of the power battery pack falling during the disassembly process, which can easily injure people. Therefore, the use of a manipulator for disassembly is considered, but this requires moving the manipulator to the bottom of the car for operation and then moving it away after completion. However, the manipulator under the existing technology lacks a reasonable mobile structure, and it is quite inconvenient to move. In view of this, we propose a new energy vehicle chassis maintenance manipulator.

[0003] The methods described in this section are not necessarily methods that have been previously conceived or employed. Unless otherwise indicated, it should not be assumed that any method described in this section is considered to be prior art simply because it is included in this section. Similarly, unless otherwise indicated, the issues mentioned in this section should not be considered to have been recognized in any prior art. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present invention discloses a new energy vehicle chassis maintenance manipulator.

[0005] To achieve the above object, a technical solution adopted by the present invention is:

[0006] A new energy vehicle chassis maintenance manipulator, comprising a manipulator and a mobile vehicle, the mobile vehicle comprising a vehicle frame, a roller assembly and a locking assembly, the vehicle frame comprising an axle tube, a handle tube and a mounting plate, the handle tube having two, the handle tube comprising a handle tube vertical section and a handle tube horizontal section connected to the upper end of the handle tube vertical section, the two handle tube horizontal sections being arranged side by side at intervals and the front ends thereof being fixedly connected and connected to the axle tube, the mounting plate being fixedly connected between the two handle tube horizontal sections, and the manipulator being mounted on the mounting plate;

[0007] The roller assembly comprises a wheel axle rotatably connected to the shaft tube and two rollers respectively fixed to two ends of the wheel axle;

[0008] The locking assembly has two groups, which are installed corresponding to the two handle tubes respectively. The locking assembly includes a driving piston, a first limit member, a locking piston, an elastic member and a gear. The driving piston is sealingly slidably connected in the vertical section of the handle tube and can extend downwardly from the lower end of the vertical section of the handle tube. The first limit member is arranged at the lower end of the vertical section of the handle tube to limit the locking piston from fully extending out of the vertical section of the handle tube. The locking piston is sealingly slidably connected in the horizontal section of the handle tube and can extend forward into the shaft tube. The front end of the locking piston has a plug-in portion that can be inserted into the tooth gap of the gear. The elastic member is arranged on the frame to push the locking piston backward. The gear is fixed to the wheel axle and corresponds to the position of the plug-in portion. The portion of the handle tube between the locking piston and the driving piston is filled with hydraulic oil.

[0009] Furthermore, the driving piston includes a first piston body and a top block, wherein the top block is fixedly connected to the lower end of the first piston body, the diameter of the top block is smaller than the diameter of the first piston body, the first piston body is sealingly and slidably connected in the vertical section of the handle tube, and the first limiting member is used to abut against the lower end of the first piston body to limit the first piston body from sliding downward out of the vertical section of the handle tube.

[0010] Furthermore, the first limiting member is an annular structure, and its inner diameter is smaller than the outer diameter of the first piston body and larger than the inner diameter of the top block.

[0011] Furthermore, a friction pad is fixedly connected to the lower end of the top block.

[0012] Furthermore, the locking piston also includes a second piston body and a slider, the slider is fixedly connected to the front end of the second piston body, the diameter of the slider is smaller than the diameter of the second piston body, the second piston body is sealingly and slidingly connected in the handle tube cross section, the plug-in portion is arranged at the front end of the slider, and the elastic member abuts against the front end of the second piston body to push the second piston body to move backward.

[0013] Furthermore, the locking assembly also includes a second limit member, which is an annular structure. The second limit member is sleeved on the outside of the slider and fixedly connected to the handle tube cross section. The elastic member is arranged between the second piston body and the second limit member.

[0014] Furthermore, a sliding groove extending along the sliding direction of the sliding block is provided on the side surface of the sliding block, and a protrusion extending into the sliding groove is provided on the inner side of the second limiting member.

[0015] Furthermore, the handle tube transverse section and the handle tube vertical section are connected via a handle arc section, and the handle tube vertical section, the handle tube transverse section and the handle arc section are an integral structure.

[0016] Furthermore, a soft sleeve is provided on one side of the horizontal section of the handle pipe close to the vertical section of the handle pipe.

[0017] Furthermore, bearings are installed on the inner sides of both ends of the shaft tube, and the wheel axle is installed in the bearings on both sides.

[0018] The new energy vehicle chassis maintenance manipulator has many significant beneficial effects. From a safety perspective, the locking assembly automatically limits the rotation of the roller when placed, effectively preventing random sliding and avoiding the danger caused by accidental sliding during maintenance; the mobile state switching is convenient, which can be achieved by lifting or lowering the handle tube without additional complex operations, greatly improving the use efficiency and facilitating maintenance personnel to quickly move it to a suitable position for maintenance or storage. Structurally, the shaft tube provides a stable installation foundation for the roller assembly, and the one-piece handle tube enhances the overall strength and rigidity, ensuring effective force transmission and not easy to deform and damage; the mounting plate position is conducive to lifting the manipulator and reducing the number of maintenance personnel entering the vehicle to improve safety. The soft cover improves grip comfort and anti-slip properties, and the friction pad increases friction, protects components and reduces noise. The design of the roller assembly makes it flexible and adaptable to different ground surfaces. The precise coordination of the locking assembly realizes stable placement and mobile function switching, which overall meets the needs of new energy vehicle chassis maintenance and promotes the development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0023] Figure 4 for Figure 2 A schematic diagram of the structure enlarged at B in the middle;

[0024] Figure 5 It is a schematic diagram of the cooperation between the locking piston and the gear in one embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the second limiter in one embodiment of the present invention.

[0026] The meanings of the symbols in the accompanying drawings are:

[0027] Manipulator 1, mobile vehicle 2, frame 21, shaft tube 211, bearing 2111, handle tube 212, handle tube vertical section 2121, handle tube horizontal section 2122, handle arc section 2123, soft cover 2124, mounting plate 213, roller assembly 22, axle 221, roller 222, locking assembly 23, driving piston 231, first piston body 2311, top block 2312, friction pad 2313, first limiting member 232, locking piston 233, plug-in part 2331, second piston body 2332, slider 2333, slide groove 2334, elastic member 234, gear 235, second limiting member 236, protrusion 2361. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Reference Figure 1-Figure 6 As shown, the new energy vehicle chassis maintenance manipulator of this embodiment includes a manipulator 1 and a mobile vehicle 2.

[0030] In this embodiment, the mobile vehicle 2 includes a vehicle frame 21 , a roller assembly 22 and a locking assembly 23 .

[0031] The frame 21 includes an axle tube 211, a handle tube 212 and a mounting plate 213. The handle tube 212 has two handle tubes, each of which includes a handle tube vertical section 2121 and a handle tube horizontal section 2122 connected to the upper end of the handle tube vertical section 2121. The two handle tube horizontal sections 2122 are arranged side by side and spaced apart from each other, and the front ends are fixedly connected and connected to the axle tube 211. The mounting plate 213 is fixedly connected between the two handle tube horizontal sections 2122, and the manipulator 1 is installed on the mounting plate 213.

[0032] The roller assembly 22 includes an axle 221 rotatably connected to the shaft tube 211 and two rollers 222 respectively fixed to two ends of the axle 221 .

[0033] The shaft tube 211 serves as the main load-bearing component and provides a mounting base for the roller assembly 22 , ensuring that the wheel axle 221 can be stably mounted therein and can withstand various forces from the vehicle body, the manipulator 1 and during movement.

[0034] The handle tube 212 facilitates maintenance personnel to push or pull the mobile vehicle 2. The handle tube vertical section 2121 provides a space for the drive piston 231 to be installed and slide, and cooperates with the handle tube horizontal section 2122 to form a hydraulic oil channel inside. The handle tube horizontal section 2122 connects the shaft tube 211 and the handle tube vertical section 2121, and plays a role in force transmission and structural support.

[0035] The mounting plate 213 is fixed between the handle tube cross sections 2122, and its main function is to carry the manipulator 1 and ensure that the manipulator 1 maintains a stable position during movement and operation. In this embodiment, the mounting plate 213 is closer to the shaft tube 211, so that the length of the booster arm can be extended so that the maintenance personnel can easily lift the manipulator 1. In addition, the maintenance personnel can push the manipulator 1 to the bottom of the vehicle when they are on the side of the vehicle, so as to reduce the number of times the maintenance personnel enter under the vehicle, thereby improving safety.

[0036] The axle 221 acts as a rotating hub in the roller assembly 22. The axle 221 can rotate smoothly through the bearings 2111 installed at both ends of the shaft tube 211, reducing the friction resistance between the axle tube 211 and the shaft tube 211, making the mobile vehicle 2 more flexible during movement. The roller 222 is a component that directly contacts the ground, and the position of the mobile vehicle 2 is moved by its rolling. The material and shape design of the roller 222 need to have a certain wear resistance and grip to adapt to different ground conditions, ensure stability and reliability during movement, and be able to bear the weight of the entire maintenance manipulator.

[0037] In this embodiment, the locking assembly 23 has two groups, which are respectively installed corresponding to the two handle tubes 212. The locking assembly 23 includes a driving piston 231, a first limiter 232, a locking piston 233, an elastic member 234 and a gear 235.

[0038] The driving piston 231 is sealingly and slidably connected in the handle tube vertical section 2121 and can extend downward from the lower end of the handle tube vertical section 2121. The first limiter 232 is provided at the lower end of the handle tube vertical section 2121 to limit the locking piston 233 from fully extending from the handle tube vertical section 2121.

[0039] Specifically, the driving piston 231 includes a first piston body 2311 and a top block 2312. The top block 2312 is fixedly connected to the lower end of the first piston body 2311. The diameter of the top block 2312 is smaller than the diameter of the first piston body 2311. The first piston body 2311 is sealingly and slidably connected in the handle pipe vertical section 2121. The first stopper 232 is used to abut against the lower end of the first piston body 2311 to limit the first piston body 2311 from sliding downward out of the handle pipe vertical section 2121. In this embodiment, the first stopper 232 is specifically an annular structure, and its inner diameter is smaller than the outer diameter of the first piston body 2311 and larger than the inner diameter of the top block 2312.

[0040] The locking piston 233 is sealingly and slidingly connected in the handle tube cross section 2122 and can extend forward into the shaft tube 211. The front end of the locking piston 233 has an inserting portion 2331 that can be inserted into the tooth gap of the gear 235. The elastic member 234 is provided on the frame 21 to push the locking piston 233 backward. The gear 235 is fixedly connected to the wheel axle 221 and corresponds to the position of the inserting portion 2331. The portion of the handle tube 212 located between the locking piston 233 and the driving piston 231 is filled with hydraulic oil.

[0041] Specifically, the locking piston 233 also includes a second piston body 2332 and a slider 2333. The slider 2333 is fixedly connected to the front end of the second piston body 2332. The diameter of the slider 2333 is smaller than the diameter of the second piston body 2332. The second piston body 2332 is sealingly and slidably connected in the handle tube cross section 2122. The plug-in portion 2331 is arranged at the front end of the slider 2333. The elastic member 234 abuts against the front end of the second piston body 2332 to push the second piston body 2332 to move backward.

[0042] The locking assembly 23 also includes a second limiting member 236, which is an annular structure. The second limiting member 236 is sleeved on the outside of the slider 2333 and fixedly connected to the handle tube cross section 2122. The elastic member 234 is disposed between the second piston body 2332 and the second limiting member 236. The elastic member 234 is specifically a coil spring, which can cooperate with the second limiting member 236 to push the second piston body 2332 backward.

[0043] In addition, a sliding groove 2334 extending along its sliding direction is formed on the side of the slider 2333, and a protrusion 2361 extending into the sliding groove 2334 is provided on the inner side of the second limiting member 236, so that the locking piston 233 can be limited to rotate in the handle tube cross section 2122, so that the plug-in portion 2331 and the tooth gap of the gear 235 remain parallel.

[0044] The maintenance robot has two states, namely a placement state and a moving state.

[0045] When in the placement state, the mobile vehicle 2 is placed flat on the ground, with its front end supported by the two rollers 222 in contact with the ground, and its rear end supported by the two driving pistons 231 in contact with the ground. Under the pressure of the mobile vehicle 2, the driving piston 231 will be subjected to an upward thrust relative to the vertical section 2121 of the handle tube, so that the locking piston 233 will be pushed forward by the hydraulic oil to overcome the elastic force of the elastic member 234, so that the plug-in portion 2331 on the locking piston 233 is inserted into one of the tooth gaps of the gear 235, so that the gear 235 can be restricted from rotating, that is, the rotation of the wheel axle 221 and the two rollers 222 is restricted. In this way, the maintenance manipulator in this state can be placed stably on the ground without sliding at will, and has a high placement stability.

[0046] When switching the maintenance manipulator in the placed state to the mobile state, the handle tube 212 is held after use, and then lifted to make the driving piston 231 leave the ground, so that the entire mobile vehicle 2 is in contact with the ground only through the two rollers 222. In this state, the elastic member 234 rebounds and pushes the locking piston 233 to move backward, so that the plug-in portion 2331 is pulled out from the tooth gap of the gear 235, and the roller 222 resumes the free rotation state. At this time, the maintenance manipulator is switched to the mobile state.

[0047] The maintenance manipulator in the mobile state can be moved by the push and pull of the user, such as moving to a suitable maintenance position under the chassis of the new energy vehicle, or moving to other positions for storage or preparing for the next maintenance operation. The moving process is simple and convenient. After moving to the target position, the handle tube 212 is put down to make the driving piston 231 contact the ground. In this way, the maintenance manipulator can automatically switch to the placement state under the action of gravity. The user does not need to perform additional locking operations. The maintenance manipulator can be placed stably on the ground, which is convenient to use. When the maintenance manipulator needs to be moved, the handle tube 212 can be lifted, and the user does not need to perform additional unlocking operations, which is conducive to the user to move it quickly.

[0048] It is worth mentioning that when the maintenance manipulator is in the placed state, the handle tube vertical section 2121 will lift the handle tube horizontal section 2122 off the ground to leave space for the user to hold the handle tube horizontal section 2122 .

[0049] In this embodiment, a friction pad 2313 is fixedly connected to the lower end of the top block 2312, and the friction pad 2313 can increase the friction between the top block 2312 and the ground to prevent slipping. At the same time, it can protect the top block 2312 and prevent it from being worn. In addition, it can also avoid the impact noise generated when it contacts the ground, meet the noise control requirements of the workplace, and create a comfortable working environment.

[0050] In this embodiment, the handle tube horizontal section 2122 is connected to the handle tube vertical section 2121 through the handle arc section 2123, and the handle tube vertical section 2121, the handle tube horizontal section 2122 and the handle arc section 2123 are an integrated structure. Such a configuration can reduce weak links such as connection gaps and welding points between components. Compared with the method of splicing multiple components, the integrated structure significantly improves the overall strength and rigidity of the handle tube. When maintenance personnel operate the mobile vehicle, whether pushing, pulling or applying force during the locking process, the handle tube can withstand greater stress and is not easily deformed or damaged, ensuring the effective transmission of force during operation, so that the maintenance personnel's operating intentions can be accurately converted into the movement of the mobile vehicle.

[0051] A soft cover 2124 is provided on one side of the handle tube horizontal section 2122 close to the handle tube vertical section 2121. The material of the soft cover is usually soft and elastic rubber or silicone. When the maintenance personnel hold the handle tube to operate, the soft cover can fit the shape of the hand, reduce the discomfort caused by direct contact between the hand and the metal handle tube, and reduce the hand fatigue caused by long-term operation. Especially in maintenance operations that require frequent movement of the dolly to adjust the position, a comfortable grip can improve the work efficiency of the maintenance personnel.

[0052] In summary, the new energy vehicle chassis maintenance manipulator has many significant beneficial effects. From a safety perspective, the locking assembly automatically limits the rotation of the roller in the placement state, effectively preventing random sliding and avoiding the danger caused by accidental sliding during maintenance; the mobile state switching is convenient, which can be achieved by lifting or lowering the handle tube, without additional complex operations, greatly improving the use efficiency, and facilitating maintenance personnel to quickly move it to a suitable position for maintenance or storage. Structurally, the shaft tube provides a stable installation foundation for the roller assembly, and the one-piece handle tube enhances the overall strength and rigidity, ensuring effective force transmission and not easy to deform and damage; the mounting plate position is conducive to lifting the manipulator and reducing the number of maintenance personnel entering the vehicle to improve safety. The soft cover improves grip comfort and anti-slip properties, and the friction pad increases friction, protects components and reduces noise. The design of the roller assembly makes it flexible and adaptable to different ground surfaces. The precise coordination of the locking assembly realizes stable placement and mobile function switching, which overall meets the needs of new energy vehicle chassis maintenance and promotes the development of the industry.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A new energy vehicle chassis maintenance manipulator, comprising a manipulator and a mobile vehicle, characterized in that: The mobile vehicle comprises a vehicle frame, a roller assembly and a locking assembly, the vehicle frame comprises an axle tube, a handle tube and a mounting plate, the handle tube has two, the handle tube comprises a handle tube vertical section and a handle tube horizontal section connected to the upper end of the handle tube vertical section, the two handle tube horizontal sections are arranged side by side at intervals and the front ends are fixedly connected and connected to the axle tube, the mounting plate is fixedly connected between the two handle tube horizontal sections, and the manipulator is mounted on the mounting plate; The roller assembly comprises a wheel axle rotatably connected to the shaft tube and two rollers respectively fixed to two ends of the wheel axle; The locking assembly has two groups, which are installed corresponding to the two handle tubes respectively. The locking assembly includes a driving piston, a first limit member, a locking piston, an elastic member and a gear. The driving piston is sealingly slidably connected in the vertical section of the handle tube and can extend downwardly from the lower end of the vertical section of the handle tube. The first limit member is arranged at the lower end of the vertical section of the handle tube to limit the locking piston from fully extending out of the vertical section of the handle tube. The locking piston is sealingly slidably connected in the horizontal section of the handle tube and can extend forward into the shaft tube. The front end of the locking piston has a plug-in portion that can be inserted into the tooth gap of the gear. The elastic member is arranged on the frame to push the locking piston backward. The gear is fixed to the wheel axle and corresponds to the position of the plug-in portion. The portion of the handle tube between the locking piston and the driving piston is filled with hydraulic oil.

2. The new energy vehicle chassis maintenance manipulator according to claim 1 is characterized in that: The driving piston includes a first piston body and a top block, wherein the top block is fixedly connected to the lower end of the first piston body, the diameter of the top block is smaller than the diameter of the first piston body, the first piston body is sealingly and slidably connected in the vertical section of the handle tube, and the first limiting member is used to abut against the lower end of the first piston body to limit the first piston body from sliding downward out of the vertical section of the handle tube.

3. A new energy vehicle chassis maintenance manipulator according to claim 2, characterized in that: The first limiting member is an annular structure, and the inner diameter thereof is smaller than the outer diameter of the first piston body and larger than the inner diameter of the top block.

4. The new energy vehicle chassis maintenance manipulator according to claim 2 is characterized in that: The lower end of the top block is fixedly connected with a friction pad.

5. The new energy vehicle chassis maintenance manipulator according to claim 1 is characterized in that: The locking piston also includes a second piston body and a slider, wherein the slider is fixedly connected to the front end of the second piston body, the slider has a diameter smaller than the diameter of the second piston body, the second piston body is sealingly and slidably connected in the handle tube cross section, the plug-in portion is arranged at the front end of the slider, and the elastic member abuts against the front end of the second piston body to push the second piston body to move backward.

6. The new energy vehicle chassis maintenance manipulator according to claim 5 is characterized in that: The locking assembly also includes a second limiting member, which is an annular structure. The second limiting member is sleeved on the outside of the sliding block and fixedly connected to the handle tube cross section. The elastic member is arranged between the second piston body and the second limiting member.

7. The new energy vehicle chassis maintenance manipulator according to claim 6 is characterized by: A sliding groove extending along the sliding direction is formed on the side of the sliding block, and a protrusion extending into the sliding groove is formed on the inner side of the second limiting member.

8. The new energy vehicle chassis maintenance manipulator according to claim 1 is characterized by: The handle tube horizontal section is connected to the handle tube vertical section through a handle arc section, and the handle tube vertical section, the handle tube horizontal section and the handle arc section are an integrated structure.

9. The new energy vehicle chassis maintenance manipulator according to claim 1 is characterized by: A soft sleeve is sleeved on one side of the handle pipe transverse section close to the handle pipe vertical section.

10. The new energy vehicle chassis maintenance manipulator according to claim 1, characterized in that: The inner sides of both ends of the shaft tube are equipped with bearings, and the wheel axle is assembled in the bearings on both sides.

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