Spiral chassis testing device

Abstract

The utility model discloses a spiral chassis testing device which comprises a testing frame (1) used for placing sandy soil, a testing vehicle body (2) is arranged in the testing frame (1), driving motors (3) are symmetrically arranged in the testing vehicle body (2), a shaft body (4) is arranged at the bottom of the testing vehicle body (2), the end portion of the shaft body (4) is connected with the testing vehicle body (2) through a fixing nut, a sleeve (5) is arranged on the shaft body (4), and the sleeve (5) is connected with the testing vehicle body (2). The sleeve (5) is connected with the output end of the driving motor (3) through a transmission part; a polygonal three-dimensional block (6) is arranged at one end of the sleeve (5), a replaceable spiral roller (7) is arranged on the shaft body (4), and a polygonal groove (8) matched with the polygonal three-dimensional block (6) is formed in one end of the spiral roller (7). According to the utility model, the replacement of different specifications or types of spiral drums is realized through the quick release structure, and the diversified test requirements of the spiral drums of different specifications are met.

Description

Technical Field

[0001] This utility model relates to the field of waste screening devices, specifically to a spiral chassis testing device. Background Technology

[0002] Litter left on beaches pollutes and damages the coastal environment, necessitating beach cleanup. Existing cleanup devices employ helical drive mechanisms. For example, Chinese invention patent CN115387423A discloses a helical-propelled amphibious intelligent garbage-cleaning robot, relating to the field of environmental remediation technology. This robot includes a microcontroller core control processor, a vision processing module, a satellite positioning module, a bucket mechanism, a conveyor belt mechanism, a garbage hopper mechanism, and a drive mechanism. In complex terrain, soft sand, and other special environments, this robot demonstrates strong maneuverability thanks to its unique propulsion method via its helical chassis. However, current research and testing of the helical chassis performance still faces numerous challenges. Existing helical chassis testing devices have significant limitations; their structures are often relatively fixed, and changing different specifications or types of helical rollers is complex, time-consuming, and labor-intensive, even difficult to implement in some devices. This situation prevents the fulfillment of diverse testing needs and, to some extent, limits in-depth research on the performance of helical chassis with different parameters. Utility Model Content

[0003] The purpose of this invention is to provide a spiral chassis testing device. This invention utilizes a quick-release structure to allow for the replacement of spiral rollers of different specifications or types, thus meeting the diverse testing needs of spiral rollers of different specifications.

[0004] The technical solution of this utility model is as follows: A spiral chassis testing device includes a test frame for placing sand, a test vehicle body inside the test frame, symmetrically arranged motor seats inside the test vehicle body, a drive motor inside the motor seats, a shaft body at the bottom of the test vehicle body, an end of the shaft body connected to the test vehicle body via a fixing nut, a sleeve on the shaft body, and the sleeve connected to the output end of the drive motor via a transmission component; one end of the sleeve has a polygonal solid block, and a replaceable spiral roller is provided on the shaft body, one end of the spiral roller has a polygonal groove that fits with the polygonal solid block, and the other end of the spiral roller is connected to the shaft body via a bearing; a movable scraper assembly is provided on the upper part of the test frame, and the upper end of the test vehicle body is connected to the scraper assembly.

[0005] In the aforementioned spiral chassis testing device, the test vehicle body includes a main frame, the spiral roller is disposed at the lower end of the main frame, a flat plate is disposed at the upper end of the main frame, a through groove is disposed on the flat plate, the motor base is disposed on the flat plate and passes through the through groove, the drive motor is located below the flat plate, multiple upright members are disposed on the flat plate, and a top plate is disposed at the upper end of the upright members.

[0006] In the aforementioned spiral chassis testing device, both the flat plate and the top plate are provided with multiple holes to facilitate the installation of modules.

[0007] In the aforementioned spiral chassis testing device, the column component includes a main body mounted on a flat plate, the upper end of the main body having a protrusion that matches a through groove on the top plate; and a reinforcing rod connecting adjacent main bodies via bolts.

[0008] In the aforementioned spiral chassis testing device, the output end of the drive motor is connected to the sleeve via chain drive.

[0009] In the aforementioned spiral chassis testing device, the scraper assembly includes a slider that is mounted on the upper end of the test frame via a sliding groove, and a crossbar is provided between the sliders on both sides; a hinge seat is provided on the top plate, and a first connecting rod is provided between the hinge seat and the crossbar; a second connecting rod is also provided on the crossbar, and a scraper is provided at the end of the second connecting rod.

[0010] In the aforementioned spiral chassis testing device, the second connecting rod has multiple adjustment holes for adjusting the position of the scraper.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. In actual testing scenarios, the drive motor precisely transmits power to the sleeve through the transmission mechanism, causing the sleeve to rotate stably. Because the polygonal block at one end of the sleeve fits tightly with the polygonal groove at one end of the spiral roller, the sleeve can reliably drive the spiral roller to rotate synchronously. When it is necessary to replace the spiral roller with a different specification or type, the operator only needs to unscrew the fixing nut at one end of the shaft, easily remove the shaft from the test vehicle, and move the sleeve out of the polygonal groove to conveniently replace it with a new spiral roller. This quick-release structure greatly simplifies the roller replacement process, not only quickly meeting diverse testing needs, but also significantly shortening the test preparation time, effectively improving testing efficiency and convenience.

[0013] 2. The plate and top plate are provided with holes, which facilitate the subsequent installation of more modules. This modular design allows the device to flexibly add or replace functional modules according to different testing purposes, effectively improving testing efficiency and expanding the testing range.

[0014] 3. The scraper assembly can level the sand in the test frame when the test vehicle moves, which can adjust the flatness of the test sand and ensure the consistency of the sand environment in each test. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2A schematic diagram of the main framework;

[0017] Figure 3 This is a schematic diagram of the motor mount;

[0018] Figure 4 This is a schematic diagram of the motor;

[0019] Figure 5 This is a schematic diagram of a polygonal 3D block;

[0020] Figure 6 A schematic diagram of the shaft;

[0021] Figure 7 This is a schematic diagram of the scraper assembly.

[0022] The markings in the attached diagram are as follows: 1-Test frame, 2-Test vehicle body, 3-Drive motor, 4-Shaft, 5-Sleeve, 6-Polygonal solid block, 7-Spiral roller, 8-Polygonal groove, 9-Scraper assembly, 10-Main frame, 11-Plate, 12-Through groove, 13-Column, 14-Top plate, 15-Hole, 16-Main body, 17-Protrusion, 18-Reinforcing rod, 19-Slider, 20-Horizontal bar, 21-Hinge seat, 22-First connecting rod, 23-Second connecting rod, 24-Scraper, 25-Adjusting hole, 26-Motor base. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0024] Example: A spiral chassis testing device, including a test frame 1 for placing sand, as shown in the attached diagram. Figure 1 As shown, the test frame 1 contains a test vehicle body 2, and the test vehicle body 2 contains symmetrically arranged motor mounts 26. A drive motor 3 is installed in each motor mount 26, and a shaft 4 is installed at the bottom of the test vehicle body 2. (See attached diagram.) Figure 6 As shown, the end of the shaft 4 is connected to the test vehicle body 2 via a fixing nut. One end of the shaft has a nut head that fits snugly against the test vehicle body, and the fixing nut is screwed on and tightened at the other end to complete the shaft installation. A sleeve 5 is installed on the shaft 4. The sleeve 5 is connected to the output end of the drive motor 3 via a transmission component. The sleeve is connected to the shaft via a bearing. The output end of the drive motor 3 is connected to the sleeve 5 via a chain drive, which ensures high transmission efficiency. One end of the sleeve 5 has a polygonal solid block 6, as shown in the attached figure. Figure 5As shown, a replaceable spiral roller 7 is mounted on the shaft 4. One end of the spiral roller 7 has a polygonal groove 8 that fits into the polygonal solid block 6. The drive motor transmits power to the sleeve via chain drive, and then the polygonal structure drives the spiral roller to rotate. The other end of the spiral roller 7 is connected to the shaft 4 via a bearing. The differences between different specifications of spiral rollers mainly lie in their different helix angle, number of spirals, and tooth flank angle, etc., all of which affect the propulsion transmission efficiency of the spiral roller. The test vehicle body 2 includes a main frame 10, as shown in the attached figure. Figure 2 As shown, the spiral roller 7 is located at the lower end of the main frame 10, and a flat plate 11 is mounted on the upper end of the main frame 10. The flat plate 11 has a through groove 12, and the motor base 26 is mounted on the flat plate 11 and passes through the through groove 12, as shown in the attached figure. Figure 3 and 4 As shown, the drive motor 3 is located below the plate 11. The plate 11 has multiple uprights 13, and a top plate 14 is mounted on the upper end of each upright 13. Both the plate 11 and the top plate 14 have multiple holes 15 for easy module installation. These holes facilitate the subsequent installation of more modules. This modular design allows the device to flexibly add or replace functional modules according to different testing purposes, effectively improving testing efficiency and expanding the testing range. Each upright 13 includes a main body 16 mounted on the plate 11. The upper end of the main body 16 has a protrusion 17 that matches a through groove 12 on the top plate 14. Adjacent main bodies 16 are connected by bolts with reinforcing rods 18. The main body consists of four plates. The upper ends of the plates are connected to the flat plate via mortise and tenon joints, reducing the use of bolts. A reinforcing column is located at the end of the main body, inside the right angle formed by adjacent plates, and the shaft passes through this reinforcing column. Adjacent main bodies on the front and rear sides of the main frame are connected by double rods, while adjacent main bodies on the left and right sides are connected by single rods. During testing, parameters such as the propulsion force of the spiral roller, settlement amount, wear condition, and overall heat generation of the device are compared.

[0025] A movable scraper assembly 9 is installed on the upper part of the test frame 1, as shown in the attached figure. Figure 7As shown, the upper end of the test vehicle body 2 is connected to the scraper assembly 9. The scraper assembly 9 includes a slider 19 mounted on the upper end of the test frame 1 via a sliding groove, and a crossbar 20 installed between the sliders 19 on both sides; a hinge seat 21 is provided on the top plate 14, and a first connecting rod 22 is installed between the hinge seat 21 and the crossbar 20; a second connecting rod 23 is also installed on the crossbar 20, and a scraper 24 is installed at the end of the second connecting rod 23. When the test vehicle moves, the slider at the end of the crossbar moves at the top of the test frame. The top of the test frame has a scale, which indicates the distance the slider has moved. The scraper assembly can level the sand in the test frame when the test vehicle moves, which can adjust the flatness of the test sand and ensure the consistency of the sand environment in each test, greatly improving the accuracy and reliability of the test results. The second connecting rod 23 has multiple adjustment holes 25 for adjusting the position of the scraper 24. The upper end of the scraper has a connecting part, which cooperates with the adjustment holes at different positions along the rod and is connected by bolts. The height of the scraper is adjusted, changing the thickness of the sand layer scraped by the scraper.

[0026] The working principle of this utility model is as follows: At the start of the test, the drive motor 3, symmetrically arranged inside the test vehicle body 2, starts. The output end of the drive motor 3 transmits power to the sleeve 5 through a chain drive, a highly efficient transmission method, so that the sleeve 5 rotates stably. Since the polygonal block 6 at one end of the sleeve 5 fits tightly with the polygonal groove 8 at one end of the spiral roller 7, the rotation of the sleeve 5 can reliably drive the spiral roller 7 to rotate synchronously. The spiral roller 7 rotates in the sand in the test frame 1, generating propulsion force through its interaction with the sand, thereby driving the test vehicle body 2 to move on the sand. When it is necessary to replace the spiral roller 7 with a different specification or type, the operator only needs to simply unscrew the fixing nut at one end of the shaft 4, easily remove the shaft 4 from the test vehicle body 2, and move the sleeve 5 out of the polygonal groove 8, so that a new spiral roller 7 can be easily replaced.

[0027] The above embodiments merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. Furthermore, in these embodiments, "up," "down," "left," "right," "front," and "back" represent relative positions only, not absolute positions. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A spiral chassis testing device, comprising a test frame (1) for placing sand, characterized in that: The test frame (1) is provided with a test vehicle body (2), and the test vehicle body (2) is provided with symmetrically arranged motor seats (26). The motor seats (26) are provided with a drive motor (3). The bottom of the test vehicle body (2) is provided with a shaft (4). The end of the shaft (4) is connected to the test vehicle body (2) via a fixing nut. The shaft (4) is provided with a sleeve (5). The sleeve (5) is connected to the output end of the drive motor (3) via a transmission component. One end of the sleeve (5) has a polygonal solid block (6). The shaft (4) is provided with a replaceable spiral roller (7). One end of the spiral roller (7) has a polygonal groove (8) that fits with the polygonal solid block (6). The other end of the spiral roller (7) is connected to the shaft (4) via a bearing. The upper part of the test frame (1) is provided with a movable scraper assembly (9). The upper end of the test vehicle body (2) is connected to the scraper assembly (9).

2. The spiral chassis testing device according to claim 1, characterized in that: The test vehicle body (2) includes a main frame (10), the spiral roller (7) is located at the lower end of the main frame (10), the upper end of the main frame (10) is provided with a plate (11), the plate (11) is provided with a through groove (12), the motor seat (26) is located on the plate (11) and the motor seat (26) passes through the through groove (12), the drive motor (3) is located below the plate (11), the plate (11) is provided with multiple column members (13), and the upper end of the column member (13) is provided with a top plate (14).

3. The spiral chassis testing device according to claim 2, characterized in that: Both the flat plate (11) and the top plate (14) are provided with multiple holes (15) to facilitate the installation of modules.

4. The spiral chassis testing device according to claim 2, characterized in that: The column component (13) includes a main body (16) set on a flat plate (11), the upper end of the main body (16) has a protrusion (17), the protrusion (17) matches the through groove (12) on the top plate (14); and a reinforcing rod (18) is connected between adjacent main bodies (16) by bolts.

5. The spiral chassis testing device according to claim 1, characterized in that: The output end of the drive motor (3) is connected to the sleeve (5) via chain drive.

6. The spiral chassis testing device according to claim 2, characterized in that: The scraper assembly (9) includes a slider (19) set at the upper end of the test frame (1) via a groove, and a crossbar (20) is provided between the two sliders (19); a hinge seat (21) is provided on the top plate (14), and a first connecting rod (22) is provided between the hinge seat (21) and the crossbar (20); a second connecting rod (23) is also provided on the crossbar (20), and a scraper (24) is provided at the end of the second connecting rod (23).

7. The spiral chassis testing device according to claim 6, characterized in that: The second connecting rod (23) has multiple adjustment holes (25) for adjusting the position of the scraper (24).

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