Movable bearing chassis for automatic driving test

Abstract

The invention discloses an automatic driving test mobile bearing chassis, and relates to the technical field of mobile bearing chassis, the automatic driving test mobile bearing chassis comprises a main body mechanism, and the top of the main body mechanism is fixedly provided with a buffer mechanism. When the mobile bearing chassis is collided due to calculation errors of the automatic driving system, force generated by collision can be transmitted to the fixing frame, so that the fixing frame moves up and down in the box body, at the moment, under the action of structures such as a compression spring, a second damper and a linkage rod, the fixing frame can be buffered, and the safety of the mobile bearing chassis is improved. In addition, due to collision, a movable plate can move in a sliding groove, under cooperation of a power source, an electromagnet, a magnetic transmission plate, a fourth damper and other structures, the movement amplitude of the movable plate can be reduced, and therefore the automatic driving system is buffered, the situation that the automatic driving system is damaged due to large collision force is avoided, and the service life of the automatic driving system is prolonged. Therefore, the continuity of the automatic driving test is improved, and the cost consumption is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile load-bearing chassis, and in particular to a mobile load-bearing chassis for autonomous driving testing. Background Art

[0002] With the rapid development of science and technology, autonomous driving technology, as an important direction for future travel, is increasingly attracting widespread attention from all walks of life. Whether in the automotive manufacturing industry, traffic management, urban planning, or public safety, autonomous driving technology heralds the arrival of a travel revolution. In order to promote the healthy development of autonomous driving technology, various test platforms have emerged. Among them, the emergence of mobile load-bearing chassis for autonomous driving tests has become an important tool for verifying autonomous driving algorithms, sensors, and system performance.

[0003] In the prior art, when using a mobile load-bearing chassis to test an autonomous driving system, the autonomous driving system may make calculation errors or large errors when running calculations, causing the mobile load-bearing chassis to collide during movement. Since the mobile load-bearing chassis does not have a good buffer device, the autonomous driving system installed on top of the mobile load-bearing chassis may be damaged due to collision during long-term use, thereby affecting subsequent testing and increasing costs. Summary of the invention

[0004] The purpose of the present invention is to provide a mobile load-bearing chassis for autonomous driving testing, so as to solve the problem that in the traditional test proposed in the above background, the autonomous driving system is damaged because the mobile load-bearing chassis cannot buffer the impact force received.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a mobile bearing chassis for autonomous driving test, comprising a main body mechanism, a buffer mechanism is fixedly installed on the top of the main body mechanism;

[0006] The buffer mechanism includes a box body, two movable grooves are provided at the bottom of the inner wall of the box body, and two movable blocks are movably embedded in the inner walls of the two movable grooves, two compression springs are provided on the inner walls of the two movable grooves, and one side of the outer wall of the compression spring is fixedly connected to one side of the outer wall of the movable block, the inner walls of the four compression springs are provided with a second damper, the outer walls of the four movable blocks are movably sleeved with a connecting rod, the inner walls of the four connecting rods are movably connected to a fixed block, and a fixing frame is fixedly installed between the tops of the four fixed blocks, the outer wall of the fixing frame is provided with two embedded grooves, the inner walls of the two embedded grooves are movably embedded with movable frames, and one side of the outer wall of the movable frame is fixedly connected to one side of the inner wall of the box body, the inner walls of the two embedded grooves are provided with a second buffer spring, and one side of the outer wall of the second buffer spring is fixedly connected to one side of the outer wall of the movable frame.

[0007] Preferably, the inner walls of the two second buffer springs are each provided with a third damper, a magnetic transfer plate is fixedly installed on the bottom of the inner wall of the fixing frame, an electromagnet is fixedly installed on the bottom of the inner wall of the magnetic transfer plate, a power supply is fixedly installed on the bottom of the inner wall of the fixing frame, and the outer wall of the power supply is electrically connected to the outer wall of the electromagnet.

[0008] Preferably, two first magnetic plates are fixedly mounted on the inner surface wall of the magnetic transfer plate, two slide grooves are provided on the inner surface wall of the fixing frame, and a movable plate is movably embedded between the inner surface walls of the two slide grooves.

[0009] Preferably, two fourth dampers are provided on the inner walls of the two slide grooves, and the telescopic ends of the fourth dampers are fixedly connected to the outer wall of the movable plate, and the second magnetic plate is fixedly mounted on the outer wall of the movable plate.

[0010] Preferably, the outer wall of the box body is provided with two installation grooves, the inner walls of the two installation grooves are both movably embedded with two limit blocks, the inner walls of the two installation grooves are both provided with limit springs, and the outer wall side of the limit spring is fixedly connected to the outer wall side of the limit block.

[0011] Preferably, the inner surface walls of the two mounting grooves are movably inserted with mounting racks, the inner surface walls of the two mounting racks are fixedly mounted with a group of filter plates, and the inner surface wall of one of the two mounting racks is fixedly mounted with two fans.

[0012] Preferably, a top cover is fixedly mounted on the top of the box body, and two sealing rings are provided on the outer wall of the top cover.

[0013] Preferably, the main body mechanism comprises a chassis body, and two fixing plates are fixedly mounted on the outer wall of the chassis body, and two first buffer springs are fixedly mounted on one side of the outer wall of the two fixing plates.

[0014] Preferably, the inner surface walls of the four first buffer springs are each provided with a first damper, and a buffer plate is fixedly installed between the outer surface walls of every two of the four first buffer springs.

[0015] Preferably, the top of the chassis body is fixedly connected to the bottom of the box body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the use of the present invention, when an error occurs in the calculation of the automatic driving system and causes a collision of the mobile bearing chassis, the force generated by the collision will be transmitted to the fixed frame, causing the fixed frame to move up and down inside the box body. At this time, under the action of the compression spring, the second damper, the connecting rod and other structures, a buffering effect can be played on the fixed frame. At the same time, under the interaction of the movable frame, the second buffer spring and the third damper, a buffering effect can also be played on the fixed frame. Due to the collision, the movable plate will move inside the slide groove. With the cooperation of the power supply, the electromagnet, the magnetic transfer plate, the fourth damper and other structures, the movement amplitude of the movable plate can be reduced and a buffering effect can be achieved. The above structure and method can buffer the automatic driving system during use to avoid damage to the automatic driving system due to a large impact force, thereby improving the continuity of the automatic driving test and greatly reducing the cost consumption.

[0018] 2. During use of the present invention, when the automatic driving system is tested, the electronic components of the automatic driving system inside the housing will generate heat after long-term use. At this time, under the action of the fan, the external air will pass through the filter plate into the interior of the housing, absorb the heat generated by the automatic driving system, and then be discharged from another filter plate, thereby realizing rapid air circulation to achieve the effect of heat dissipation. When the air enters the interior of the housing, the filter plate can prevent external dust and impurities from entering the interior of the housing, thereby protecting the automatic driving system inside and avoiding damage due to the influence of dust and impurities.

[0019] 3. During use of the present invention, when a collision occurs when the mobile load-bearing chassis is used to test the automatic driving system, the impact force can be buffered and weakened through the cooperation of the buffer plate, the first buffer spring and the first damper, thereby preventing the mobile load-bearing chassis from being damaged due to excessive impact force, thereby protecting the mobile load-bearing chassis, avoiding damage during use and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a mobile supporting chassis for autonomous driving testing according to the present invention;

[0021] Figure 2 This is a three-dimensional diagram of the main mechanism in a mobile supporting chassis for autonomous driving testing of the present invention;

[0022] Figure 3 This is a disassembled diagram of the main mechanism in a mobile carrying chassis for autonomous driving testing of the present invention;

[0023] Figure 4 This is a cross-sectional view of a buffer mechanism in a mobile supporting chassis for an autonomous driving test according to the present invention;

[0024] Figure 5 This is a disassembled stereoscopic diagram of a buffer mechanism in a mobile supporting chassis for an autonomous driving test according to the present invention;

[0025] Figure 6 This is a cross-sectional exploded view of a buffer mechanism in a mobile supporting chassis for an autonomous driving test according to the present invention;

[0026] Figure 7 This is a partial cross-sectional exploded view of a buffer mechanism in a mobile supporting chassis for an autonomous driving test according to the present invention;

[0027] Figure 8 This is a partial disassembled diagram of a buffer mechanism in a mobile supporting chassis for autonomous driving testing according to the present invention.

[0028] In the figure: 1, main body; 101, chassis body; 102, fixing plate; 103, first buffer spring; 104, first damper; 105, buffer plate; 2, buffer mechanism; 201, box; 202, mounting groove; 203, limit block; 204, limit spring; 205, mounting frame; 206, fan; 207, filter plate; 208, top cover; 209, sealing ring; 210, movable groove; 211, movable block; 2 12. Compression spring; 213. Second damper; 214. Linking rod; 215. Fixed block; 216. Fixed frame; 217. Embedded groove; 218. Movable frame; 219. Second buffer spring; 220. Third damper; 221. Magnetic transfer plate; 222. Electromagnet; 223. Power supply; 224. First magnetic plate; 225. Slide groove; 226. Movable plate; 227. Fourth damper; 228. Second magnetic plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1, refer to Figure 1-Figure 8 As shown: The present invention provides a mobile bearing chassis for autonomous driving testing, comprising a main body mechanism 1, a buffer mechanism 2 is fixedly installed on the top of the main body mechanism 1;

[0031] The buffer mechanism 2 includes a box body 201, and two movable grooves 210 are provided at the bottom of the inner wall of the box body 201. Two movable blocks 211 are movably embedded in the inner surface walls of the two movable grooves 210. Two compression springs 212 are provided on the inner surface walls of the two movable grooves 210, and one side of the outer wall of the compression spring 212 is fixedly connected to one side of the outer wall of the movable block 211. The inner surface walls of the four compression springs 212 are each provided with a second damper 213, and the outer walls of the four movable blocks 211 are each provided with a second damper 213. The movable sleeve is provided with a connecting rod 214, and the inner surface walls of the four connecting rods 214 are all movably connected with a fixed block 215, and a fixed frame 216 is fixedly installed between the tops of the four fixed blocks 215. The outer wall of the fixed frame 216 is provided with two embedded grooves 217, and the inner surface walls of the two embedded grooves 217 are both movably embedded with a movable frame 218, and one side of the outer wall of the movable frame 218 is fixedly connected to one side of the inner wall of the box body 201, and the inner surface walls of the two embedded grooves 217 are both provided with a second buffer spring 219, and one side of the outer wall of the second buffer spring 219 is fixedly connected to one side of the outer wall of the movable frame 218, the inner walls of the two second buffer springs 219 are each provided with a third damper 220, a magnetic transfer plate 221 is fixedly installed at the bottom of the inner wall of the fixed frame 216, an electromagnet 222 is fixedly installed at the bottom of the inner wall of the magnetic transfer plate 221, a power supply 223 is fixedly installed at the bottom of the inner wall of the fixed frame 216, and the outer wall of the power supply 223 is electrically connected to the outer wall of the electromagnet 222, two first magnetic plates 224 are fixedly installed on the inner wall of the magnetic transfer plate 221, two slide grooves 225 are provided on the inner wall of the fixed frame 216, a movable plate 226 is movably embedded between the inner walls of the two slide grooves 225, two fourth dampers 227 are provided on the inner walls of the two slide grooves 225, and the telescopic end of the fourth damper 227 is fixedly connected to the outer wall of the movable plate 226, and a second magnetic plate 228 is fixedly installed on the outer wall of the movable plate 226.

[0032] In this embodiment, the automatic driving system is tested using a mobile load-bearing chassis. When a collision occurs due to calculation errors of the automatic driving system, the force generated by the collision will be transmitted to the fixed frame 216, causing the fixed frame 216 to move up and down inside the box 201. When the fixed frame 216 moves downward, the movable block 211 will move to both sides inside the movable groove 210 under the action of the fixed block 215 and the connecting rod 214, and the compression spring 212 will be compressed. At the same time, under the action of the movable frame 218, the second buffer spring 219 will be compressed. When the compression spring 212 and the second buffer spring 219 are compressed to a certain extent, the compression spring 212 and the second buffer spring 219 will generate a large rebound force. At this time, under the action of the second damper 213 and the third damper 220, the rebound force generated by the compression spring 212 and the second buffer spring 219 can be partially absorbed and weakened to avoid a large rebound. The elastic force will act on the fixed frame 216 again, thereby buffering the fixed frame 216. When a certain load-bearing chassis is hit, its impact force will also act on the movable plate 226, causing the movable plate 226 to move inside the slide groove 225. At this time, the electromagnet 222 is powered by the power supply 223, causing the electromagnet 222 to generate magnetism, and under the action of the magnetic transfer plate 221, the magnetism is transferred to the first magnetic plate 224, and the second magnetic plate 228 itself will generate the same magnetism as the electromagnet 222, so that through the principle of mutual repulsion of the two magnetisms, the movable plate 226 will reciprocate inside the slide groove 225. At this time, under the action of the fourth damper 227, the reciprocating force on the movable plate 226 can be partially absorbed, thereby achieving a buffering effect on the movable plate 226, protecting the automatic driving system and avoiding damage to the automatic driving system due to excessive impact force during use.

[0033] Embodiment 2, according to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As shown, the outer wall of the box body 201 is provided with two installation grooves 202, the inner walls of the two installation grooves 202 are movably embedded with two limit blocks 203, the inner walls of the two installation grooves 202 are provided with limit springs 204, and one side of the outer wall of the limit spring 204 is fixedly connected to one side of the outer wall of the limit block 203, the inner walls of the two installation grooves 202 are movably inserted with installation frames 205, the inner walls of the two installation frames 205 are fixedly installed with a group of filter plates 207, the inner wall of one of the two installation frames 205 is fixedly installed with two fans 206, and a top cover 208 is fixedly installed on the top of the box body 201, and the outer wall of the top cover 208 is provided with two sealing rings 209.

[0034] In this embodiment, when the automatic driving system is used for a long time, the electronic components inside it will generate a lot of heat. At this time, the external air can be transported to the inside of the box 201 under the action of the fan 206. When the air enters the box 201, it absorbs the heat generated by the automatic driving system inside it, and then it is discharged from the filter plate 207 on the other side of the box 201, so that the air inside the box 201 can circulate quickly, thereby achieving the purpose of cooling the automatic driving system and avoiding damage due to excessive temperature. At the same time, when the air enters the box 201, it is filtered out by the filter plate 207. Under the action of plate 207, dust and impurities in the air can be filtered and adsorbed to prevent dust and impurities from entering the interior of the box 201 along with the air, thereby further protecting the automatic driving system and preventing it from being affected by dust and becoming unusable, thereby extending its service life. After a long period of use, a large amount of dust will adhere to the outer wall of the filter plate 207. At this time, the mounting frame 205 can be disassembled under the action of the limit block 203 and the limit spring 204, making it easier for the staff to replace or clean the filter plate 207, thereby greatly improving work efficiency.

[0035] Embodiment 3, according to Figure 1 , Figure 2 as well as Figure 3 As shown, the main mechanism 1 includes a chassis body 101, and two fixing plates 102 are fixedly installed on the outer wall of the chassis body 101, and two first buffer springs 103 are fixedly installed on one side of the outer wall of the two fixing plates 102, and the inner walls of the four first buffer springs 103 are provided with first dampers 104, and a buffer plate 105 is fixedly installed between the outer walls of every two of the four first buffer springs 103, and the top of the chassis body 101 is fixedly connected to the bottom of the box body 201.

[0036] In this embodiment, when the automatic driving system is tested using a mobile supporting chassis, the mobile supporting chassis may collide due to calculation errors. When the mobile supporting chassis collides, the buffer plate 105 will be instantly subjected to force and compress the first buffer spring 103. When the first buffer spring 103 is compressed to a certain extent, a large rebound force will be generated. At this time, the rebound force will be partially absorbed by the first damper 104, thereby buffering the impact force received by the mobile supporting chassis, avoiding damage to the mobile supporting chassis during long-term use and extending its service life.

[0037] The working principle of the whole mechanism is as follows: the automatic driving system is tested on a mobile load-bearing chassis. Due to calculation errors of the automatic driving system, the mobile load-bearing chassis may collide. When the mobile load-bearing chassis collides, the buffer plate 105 is instantly subjected to force and compresses the first buffer spring 103. When the first buffer spring 103 is compressed to a certain extent, a large rebound force will be generated. At this time, the rebound force will be partially absorbed under the action of the first damper 104, thereby buffering the impact force received by the mobile load-bearing chassis and avoiding damage to the mobile load-bearing chassis during long-term use. Subsequently, the force generated by the collision will be transmitted to the fixed frame 216, causing the fixed frame 216 to move up and down inside the box body 201. When the fixed frame When 216 moves downward, under the action of the fixed block 215 and the connecting rod 214, the movable block 211 moves to both sides inside the movable groove 210 and compresses the compression spring 212. At the same time, under the action of the movable frame 218, the second buffer spring 219 is compressed. When the compression spring 212 and the second buffer spring 219 are compressed to a certain extent, the compression spring 212 and the second buffer spring 219 will generate a large rebound force. At this time, under the action of the second damper 213 and the third damper 220, the rebound force generated by the compression spring 212 and the second buffer spring 219 can be partially absorbed and weakened to prevent the large rebound force from acting on the fixed frame 216 again, thereby buffering the fixed frame 216. When a certain load-bearing chassis is impacted, its impact force will also act on the movable plate 226, so that the movable plate 226 will move inside the slide groove 225. At this time, the electromagnet 222 is powered by the power supply 223, so that the electromagnet 222 generates magnetism, and under the action of the magnetic transfer plate 221, the magnetism is transferred to the first magnetic plate 224, and the second magnetic plate 228 itself will generate the same magnetism as the electromagnet 222, so that the movable plate 226 will reciprocate inside the slide groove 225 through the principle of mutual repulsion of the two magnetisms. At this time, under the action of the fourth damper 227, the reciprocating force on the movable plate 226 can be partially absorbed, thereby achieving a buffering effect on the movable plate 226, which is beneficial to the automatic driving system. The automatic driving system plays a protective role. During the long-term use of the automatic driving system, the electronic components inside it will generate a lot of heat. At this time, the external air can be transported to the inside of the box 201 through the action of the fan 206. When the air enters the box 201, it absorbs the heat generated by the automatic driving system inside it, and then is discharged from the filter plate 207 on the other side of the box 201, so that the air inside the box 201 can circulate quickly, thereby achieving the purpose of cooling the automatic driving system and avoiding damage due to excessive temperature. At the same time, when the air enters the box 201, the dust and impurities in the air can be filtered and adsorbed through the filter plate 207, so as to avoid dust and impurities entering the box 201 with the air.This further protects the automatic driving system, preventing it from being affected by dust and becoming unusable, thereby extending its service life. After long-term use, a large amount of dust will adhere to the outer wall of the filter plate 207. At this time, the mounting frame 205 can be disassembled under the action of the limit block 203 and the limit spring 204, making it easier for the staff to replace or clean the filter plate 207, greatly improving the efficiency of cleaning and installation.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile load-bearing chassis for autonomous driving testing, characterized in that: It comprises a main body mechanism (1), a buffer mechanism (2) being fixedly mounted on the top of the main body mechanism (1); The buffer mechanism (2) comprises a box body (201), the bottom of the inner wall of the box body (201) is provided with two movable grooves (210), the inner surface walls of the two movable grooves (210) are both movably embedded with two movable blocks (211), the inner surface walls of the two movable grooves (210) are both provided with two compression springs (212), and one side of the outer wall of the compression spring (212) is fixedly connected to one side of the outer wall of the movable block (211), the inner surface walls of the four compression springs (212) are both provided with a second damper (213), the outer surface walls of the four movable blocks (211) are both movably sleeved with a connecting rod (214), and the four connecting rods (214) are both provided with a second damper (213). The inner surface wall of the rod (214) is movably connected with a fixed block (215), a fixed frame (216) is fixedly installed between the tops of the four fixed blocks (215), the outer surface wall of the fixed frame (216) is provided with two embedded grooves (217), the inner surface walls of the two embedded grooves (217) are movably embedded with a movable frame (218), and one side of the outer wall of the movable frame (218) is fixedly connected to one side of the inner wall of the box body (201), and the inner surface walls of the two embedded grooves (217) are provided with a second buffer spring (219), and one side of the outer wall of the second buffer spring (219) is fixedly connected to one side of the outer wall of the movable frame (218).

2. The mobile supporting chassis for autonomous driving test according to claim 1, characterized in that: The inner walls of the two second buffer springs (219) are each provided with a third damper (220); a magnetic transfer plate (221) is fixedly mounted on the bottom of the inner wall of the fixing frame (216); an electromagnet (222) is fixedly mounted on the bottom of the inner wall of the magnetic transfer plate (221); a power source (223) is fixedly mounted on the bottom of the inner wall of the fixing frame (216); and the outer wall of the power source (223) is electrically connected to the outer wall of the electromagnet (222).

3. The mobile supporting chassis for autonomous driving test according to claim 2, characterized in that: Two first magnetic plates (224) are fixedly mounted on the inner surface wall of the magnetic transfer plate (221), two slide grooves (225) are provided on the inner surface wall of the fixing frame (216), and a movable plate (226) is movably embedded between the inner surface walls of the two slide grooves (225).

4. The mobile supporting chassis for autonomous driving test according to claim 3, characterized in that: Two fourth dampers (227) are provided on the inner walls of the two slide grooves (225), and the telescopic ends of the fourth dampers (227) are fixedly connected to the outer wall of the movable plate (226), and the outer wall of the movable plate (226) is fixedly mounted with a second magnetic plate (228).

5. The mobile supporting chassis for autonomous driving test according to claim 4, characterized in that: The outer wall of the box body (201) is provided with two installation grooves (202), the inner walls of the two installation grooves (202) are both movably embedded with two limit blocks (203), the inner walls of the two installation grooves (202) are both provided with limit springs (204), and one side of the outer wall of the limit spring (204) is fixedly connected to one side of the outer wall of the limit block (203).

6. The mobile supporting chassis for autonomous driving test according to claim 5, characterized in that: The inner surface walls of the two mounting grooves (202) are both movably inserted with mounting frames (205), the inner surface walls of the two mounting frames (205) are both fixedly mounted with a group of filter plates (207), and the inner surface wall of one of the two mounting frames (205) is fixedly mounted with two fans (206).

7. The mobile supporting chassis for autonomous driving test according to claim 6, characterized in that: A top cover (208) is fixedly mounted on the top of the box body (201), and two sealing rings (209) are arranged on the outer wall of the top cover (208).

8. The mobile supporting chassis for autonomous driving test according to claim 7, characterized in that: The main body mechanism (1) comprises a chassis body (101), the outer wall of the chassis body (101) having two fixed plates (102) fixedly mounted thereon, and two first buffer springs (103) fixedly mounted on one side of the outer wall of the two fixed plates (102).

9. The mobile supporting chassis for autonomous driving test according to claim 8, characterized in that: The inner surface walls of the four first buffer springs (103) are each provided with a first damper (104), and a buffer plate (105) is fixedly installed between the outer surface walls of every two of the four first buffer springs (103).

10. The mobile supporting chassis for autonomous driving test according to claim 9, characterized in that: The top of the chassis body (101) is fixedly connected to the bottom of the box body (201).

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