Tire test loading force platform and loading device thereof

Abstract

The application relates to the technical field of aerospace tire testing, in particular to a tire testing loading force measuring platform and a loading device thereof, which comprises a force measuring sensor, a force measuring base connected with the force measuring sensor, a force measuring top base connected with an input end of the force measuring sensor and a power mechanism, the power mechanism is in driving connection with the force measuring top base, the force measuring base is in driving connection with a loading head, and the loading head is used for mounting a tire to be tested; the application is beneficial to accurately measuring and controlling the stress of the tire to be tested in the test, can accurately measure the stress of the tire to be tested, and can accurately evaluate the characteristics such as the mechanics, dynamic operation, brake response and friction coefficient of the aerospace tire.

Description

Technical Field

[0001] This invention relates to the field of aerospace tire testing technology, and in particular to a tire testing loading force measurement platform and its loading device. Background Technology

[0002] To ensure the safety of aircraft tires during use, they need to simulate the complex mechanical environment under extreme conditions such as catapult takeoff, ski-jump takeoff, carrier landing, roll, yaw, and aborted takeoff. Therefore, during the research and development and production process, aircraft tires need to undergo high load, high acceleration tire dynamic characteristic tests, tire wear performance tests, tire braking tests, and other tire characteristic tests.

[0003] Because it is difficult to accurately measure the forces acting on the tire under test, it is impossible to accurately evaluate the mechanical properties, dynamic operation, braking response, friction coefficient, and other characteristics of aircraft tires, which makes it inconvenient to provide experimental means for the research of new synthetic rubber materials and other natural rubber tire properties. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a tire testing loading force measurement platform and its loading device, which facilitates accurate measurement and control of the force on the tire under test during the test. It can accurately measure the force on the tire under test and accurately evaluate the mechanical, dynamic operation, braking response, friction coefficient and other characteristics of aircraft tires.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The present invention provides a tire testing loading force measuring platform, including a force measuring base, a force measuring top, a force measuring sensor and a power mechanism connected between the force measuring base and the force measuring top, wherein the power mechanism is driven to the force measuring top, and a loading head is driven to the force measuring base, and the loading head is used to install the tire to be tested.

[0007] The power mechanism includes a yaw mechanism and a main loading mechanism. The yaw mechanism includes a yaw mounting frame, a yaw drive mechanism mounted on the yaw mounting frame, and a yaw rotating body driven and connected to the yaw drive mechanism. The yaw rotating body is driven and connected to the force measuring top seat.

[0008] The yaw rotating body is rotatably connected to the yaw mounting frame, and the yaw drive mechanism is used to drive the yaw rotating body to rotate horizontally.

[0009] The main loading mechanism is connected to the yaw rotating body and is used to drive the yaw rotating body to move up and down.

[0010] The yaw mounting bracket is provided with a first mounting slot and a second mounting slot, and both the first mounting slot and the second mounting slot are provided with bearings. The yaw rotating body is mounted in the first mounting slot and the second mounting slot through the bearings.

[0011] The yaw drive mechanism includes a rotating body drive unit and a yaw limiting body that is driven and connected to the rotating body drive unit. The yaw limiting body is connected to the yaw rotating body.

[0012] The yaw drive mechanism further includes a yaw connecting plate connected to the yaw mounting bracket. The yaw connecting plate is equipped with a first yaw limit block and a second yaw limit block. The yaw limit body moves within the stroke range between the first yaw limit block and the second yaw limit block. The first yaw limit block and the second yaw limit block are used to limit the yaw limit body.

[0013] The tire test loading force measuring platform also includes a loading adjustment mechanism, which is connected to the loading head;

[0014] The loading adjustment mechanism includes a loading adjustment frame, a loading adjustment drive mechanism, a loading locking assembly, and an adjustment pad. The loading adjustment frame is connected to the force measuring base, and the loading adjustment drive mechanism is used to adjust the space between the loading adjustment frame and the loading head to increase or decrease the number of installation adjustment pads.

[0015] The loading locking assembly is used to lock the loading adjustment frame, the adjustment pad, and the loading head to eliminate the gap between the loading adjustment frame, the adjustment pad, and the loading head.

[0016] The loading adjustment drive mechanism includes a loading screw threadedly connected to the loading head and a screw rotation drive unit driven by the loading screw. The screw rotation drive unit is mounted on the loading adjustment frame and drives the loading screw to rotate, thereby causing the loading head to move up and down.

[0017] The adjusting pad has a pad mounting groove and a pad positioning part on each of its two opposite sides. The loading head has a loading mounting groove. The pad positioning part is installed in conjunction with the loading mounting groove. Two adjacent adjusting pads are installed by the pad mounting groove and the pad positioning part cooperating. The loading adjusting frame has an adjusting frame mounting groove. An adjusting frame mounting block is detachably installed in the adjusting frame mounting groove. The adjusting frame mounting block is installed in conjunction with the pad mounting groove.

[0018] The present invention also provides a tire testing loading device, the tire testing loading device comprising a mounting main frame connected to a yaw mounting bracket and a tilting mechanism for driving the mounting main frame to swing;

[0019] The main loading mechanism is connected to the main mounting frame, and the yaw mounting frame is slidably connected to the main mounting frame.

[0020] The tilting mechanism includes a tilting frame and a tilting drive mechanism. The tilting drive mechanism is connected to the tilting frame and is driven to the mounting main frame. The tilting drive mechanism is used to drive the mounting main frame to swing, so that the yaw rotating body swings.

[0021] The tilt mechanism further includes a tilt locking assembly, which includes a tilt separation plate, a connecting plate mounted on the main mounting frame, a locking member for locking the tilt separation plate to the connecting plate, and a fixing member for locking the tilt separation plate to the tilt frame.

[0022] When locked, the locking member releases the locking between the roll separation plate and the connecting plate, and the fixing member locks the roll frame and the roll separation plate; and makes the roll separation plate fit against the roll frame.

[0023] When tilt adjustment is required from the locked state, the fastener releases the locking of the tilt frame and the tilt separation plate, and the locking member locks the tilt separation plate and the connecting plate, so that there is a gap between the tilt separation plate and the tilt frame, and the tilt separation plate and the connecting plate are in contact.

[0024] The tilt locking assembly further includes a tilt guide post. The tilt separation plate is provided with a tilt mating hole. The tilt guide post extends into the tilt mating hole and mates with it. The tilt frame is provided with a tilt guide hole. Both the locking member and the tilt guide post can pass through the tilt guide hole. When the main mounting frame tilts, the tilt guide post moves along the tilt guide hole.

[0025] The tilt frame is provided with multiple tilt locking holes, the tilt separation plate is provided with multiple separation locking holes, and the fastener passes through the tilt locking holes and the separation locking holes to lock the tilt frame and the tilt separation plate.

[0026] The tilt locking assembly also includes a detection switch connected to the connecting plate. The detection switch is used to detect the gap between the tilt separation plate and the connecting plate before the main frame tilts.

[0027] The beneficial effects of this invention are:

[0028] In practical applications, the load is applied to the force-measuring base through the power mechanism, which facilitates the accurate measurement and control of the force on the tire under test during the test. It can accurately measure the force on the tire under test and accurately evaluate the mechanical, dynamic operation, braking response, friction coefficient and other characteristics of aircraft tires. It also provides experimental means for the research of new synthetic rubber materials and other natural rubber tire characteristics. Attached Figure Description

[0029] Figure 1 This is an exploded structural diagram of the load measuring platform for this tire test.

[0030] Figure 2 This is a three-dimensional structural diagram of the power mechanism.

[0031] Figure 3 A three-dimensional structural diagram showing the separation of the yaw mounting bracket and the yaw connector.

[0032] Figure 4 This is an exploded structural diagram of the yaw drive mechanism and the yaw rotating body.

[0033] Figure 5 This is a schematic diagram of the connection structure between the yaw drive mechanism and the yaw connecting plate.

[0034] Figure 6 This is a three-dimensional structural diagram of the loading adjustment mechanism and the tire under test.

[0035] Figure 7 This is an exploded structural diagram of a load adjustment drive mechanism, a load head, and a load adjustment frame.

[0036] Figure 8 This is an exploded structural diagram of a loading adjustment frame, adjustment pad, loading head, and loading locking assembly.

[0037] Figure 9 This is a three-dimensional structural diagram of the tire testing loading device.

[0038] Figure 10 This is a structural sectional view of the main loading mechanism, yaw rotating body, loading head, and mounting frame.

[0039] Figure 11 This is a schematic diagram of the exploded structure of the tilting mechanism.

[0040] Figure 12 This is an exploded structural diagram of the tilt locking assembly.

[0041] Figure 13 This is a sectional view of the tilting frame and the main frame when locked in place.

[0042] 01. The tire to be tested;

[0043] 100. Force sensor; 101. Force base; 102. Force top mount;

[0044] 1. Loading header; 1001. Loading installation slot;

[0045] 2. Power mechanism; 201. Yaw mechanism; 202. Main loading mechanism;

[0046] 21. Yaw mounting bracket; 211. First mounting slot; 212. Second mounting slot;

[0047] 213. Bearings;

[0048] 22. Yaw drive mechanism; 221. Rotating body drive unit; 222. Yaw limiter;

[0049] 223. Yaw connector; 224. First yaw limit block; 225. Second yaw limit block;

[0050] 23. Yaw-rotating body;

[0051] 3. Load the adjustment mechanism;

[0052] 31. Loading adjustment frame; 311. Adjustment frame mounting slot; 312. Adjustment frame mounting block;

[0053] 32. Load adjustment drive mechanism;

[0054] 321. Loading screw; 322. Screw rotation drive unit;

[0055] 33. Load the locking assembly; 34. Adjust the pads;

[0056] 341. Pad mounting groove; 342. Pad positioning part;

[0057] 400. Install the main frame;

[0058] 4. Tilting mechanism;

[0059] 41. Tilt bracket; 411. Tilt guide hole; 412. Tilt locking hole;

[0060] 42. Tilting drive mechanism;

[0061] 43. Tilt locking assembly;

[0062] 431. Side tilt separation plate; 4311. Side tilt mating hole; 4312. Separation locking hole;

[0063] 432. Connecting plate; 433. Locking component; 434. Fixing component;

[0064] 435. Tilt guide column; 436. Detection switch. Detailed Implementation

[0065] To facilitate understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and accompanying drawings. Specific embodiments of the present invention will be described below. It should be noted that, in order to provide a concise description of these embodiments, this specification cannot provide a detailed description of all features of the actual embodiments.

[0066] refer to Figures 1 to 13 As shown, the present invention provides a tire testing loading force measuring platform, including a force measuring base 101, a force measuring top seat 102, a force measuring sensor 100 connected between the force measuring base 101 and the force measuring top seat 102, and a power mechanism 2. The power mechanism 2 is drivenly connected to the force measuring top seat 102, and the force measuring base 101 is drivenly connected to a loading head 1. The loading head 1 is used to install the tire 01 to be tested.

[0067] refer to Figure 1 As shown, in practical applications, the load is applied to the force measuring base 102 by the power mechanism 2. The force is smoothly transmitted to the tire 01 under test through the force measuring base 102, the force sensor 100, the force measuring base 101, and the loading head 1. The force sensor 100 can be a three-component force sensor or a six-component force sensor, which is conducive to accurately measuring and controlling the force on the tire 01 under test during the test. It can accurately measure the force on the tire under test and accurately evaluate the mechanical properties, dynamic operation, braking response, friction coefficient, and other characteristics of aviation tires. It is convenient to provide experimental means for the research of new synthetic rubber materials and other natural rubber tire characteristics.

[0068] refer to Figure 2 As shown, in this embodiment, the power mechanism 2 includes a yaw mechanism 201 and a main loading mechanism 202. The yaw mechanism 201 includes a yaw mounting frame 21, a yaw drive mechanism 22 mounted on the yaw mounting frame 21, and a yaw rotating body 23 drivenly connected to the yaw drive mechanism 22. The yaw rotating body 23 is drivenly connected to the force measuring top seat 102. The yaw rotating body 23 is rotatably connected to the yaw mounting frame 21. The yaw drive mechanism 22 is used to drive the yaw rotating body 23 to rotate horizontally. The main loading mechanism 202 is drivenly connected to the yaw rotating body 23 and is used to drive the yaw rotating body 23 to move up and down.

[0069] In practical applications, the yaw drive mechanism 22 uses a hydraulic cylinder. When a yaw test is conducted, the yaw drive mechanism 22 drives the yaw rotating body 23 to rotate. The force sensor 100 acquires the force on the tire under test 01 during the yaw test, simulating the working condition of an aircraft tire in a yaw state. The main loading mechanism 202 uses a hydraulic cylinder. The main loading mechanism 202 drives the force sensor 100, the yaw rotating body 23, the force measuring base 101, the force measuring top seat 102, and the loading head 1 to move up and down, thereby increasing or decreasing the load on the tire under test 01. The force sensor 100 measures the load applied by the main loading mechanism 202, controls the pressure on the tire under test 01 in the vertical direction, and simulates the pressure on the tire under test 01 when the aircraft lands, making it close to the working condition of an aircraft tire in actual operation, so as to realize the loading test of the tire under test 01.

[0070] refer to Figure 3As shown, in this embodiment, the yaw mounting bracket 21 is provided with a first mounting groove 211 and a second mounting groove 212. Both the first mounting groove 211 and the second mounting groove 212 are provided with bearings 213. The yaw rotating body 23 is mounted on the first mounting groove 211 and the second mounting groove 212 through the bearings 213, so that the yaw rotating body 23 rotates smoothly.

[0071] refer to Figure 4 As shown, in this embodiment, the yaw drive mechanism 22 includes a rotating body drive unit 221 and a yaw limiting body 222 drivenly connected to the rotating body drive unit 221. The yaw limiting body 222 is connected to the yaw rotating body 23. (Reference) Figure 5 As shown, the yaw drive mechanism 22 also includes a yaw connecting plate 223 connected to the yaw mounting bracket 21. The yaw connecting plate 223 is equipped with a first yaw limiting block 224 and a second yaw limiting block 225. The yaw limiting body 222 moves within the stroke range between the first yaw limiting block 224 and the second yaw limiting block 225. The first yaw limiting block 224 and the second yaw limiting block 225 are used to limit the yaw limiting body 222.

[0072] refer to Figure 2 , 3 As shown in Figure 4, the power mechanism 2 cleverly rotates and installs the yaw rotating body 23 onto the yaw mounting frame 21, installs the yaw drive mechanism 22 onto the yaw mounting frame 21, and connects the yaw rotating body 23 with the yaw limiting body 222 to limit the yaw angle, so that the yaw drive mechanism 22 drives the yaw rotating body 23 to rotate, thereby driving the tire 01 to be tested on the loading head 1 to rotate for yaw test.

[0073] refer to Figure 6 As shown, in this embodiment, the tire test loading force measuring platform further includes a loading adjustment mechanism 3, which is connected to the loading head 1. The loading adjustment mechanism 3 includes a loading adjustment frame 31, a loading adjustment drive mechanism 32, a loading locking assembly 33, and an adjusting pad 34. The loading adjustment frame 31 is connected to the force measuring base 101. The loading adjustment drive mechanism 32 is used to adjust the space between the loading adjustment frame 31 and the loading head 1 to increase or decrease the installation of the adjusting pad 34. The loading locking assembly 33 is used to lock the loading adjustment frame 31, the adjusting pad 34, and the loading head 1 to eliminate the gap between them.

[0074] refer to Figure 6 , 7As shown, in practical applications, the installation space between the loading adjustment frame 31 and the loading head 1 is adjusted by the loading adjustment drive mechanism 32, thereby adjusting the number of adjustment pads 34 installed in the installation space, and thus adjusting the installation height of the loading head 1 to accommodate the installation of different sizes of the tires to be tested 01. Specifically, the loading locking assembly 33 uses screws and nuts to lock the loading adjustment frame 31, one or more adjustment pads 34 and the loading head 1 with multiple screws and nuts to eliminate the gap between the loading adjustment frame 31, the adjustment pads 34 and the loading head 1, so as to make its structure stable and facilitate the transmission of force.

[0075] refer to Figure 7 As shown, in this embodiment, the loading adjustment drive mechanism 32 includes a loading screw 321 threadedly connected to the loading head 1 and a screw rotation drive unit 322 driven by the loading screw 321. The screw rotation drive unit 322 is mounted on the loading adjustment frame 31 and drives the loading screw 321 to rotate, so that the loading head 1 moves up and down. Specifically, the screw rotation drive unit 322 can be a motor or a worm gear reducer mechanism that is cranked by a handwheel, which drives the loading screw 321 to rotate.

[0076] refer to Figure 8 As shown, in this embodiment, the two opposite sides of the adjusting pad 34 are respectively provided with pad mounting grooves 341 and pad positioning parts 342. The loading head 1 is provided with a loading mounting groove 1001. The pad positioning part 342 is installed in conjunction with the loading mounting groove 1001. Two adjacent adjusting pads 34 are installed by the pad mounting groove 341 and the pad positioning part 342. The loading adjusting frame 31 is provided with an adjusting frame mounting groove 311. An adjusting frame mounting block 312 is detachably installed in the adjusting frame mounting groove 311. The adjusting frame mounting block 312 is installed in conjunction with the pad mounting groove 341, which makes it convenient to install one or more adjusting pads 34, the loading head 1 and the loading adjusting frame 31. The structure adopts an inlay connection structure of protrusions and grooves, which is stable and eliminates gaps between them, and facilitates the transmission of force.

[0077] refer to Figure 9 As shown, the present invention also provides a tire testing loading device, which includes a main mounting frame 400 connected to a yaw mounting bracket 21 and a tilting mechanism 4 for driving the main mounting frame 400 to swing; the main loading mechanism 202 is connected to the main mounting frame 400, and the yaw mounting bracket 21 is slidably connected to the main mounting frame 400.

[0078] In practical applications, the tilting mechanism 4 drives the mounting frame 400 to swing, causing the force sensor 100, yaw rotating body 23, loading head 1, and the tire under test 01 to swing synchronously. The force sensor 100 measures the force on the tire under test 01 during the tilting test, simulating the working condition of an aircraft tire in a tilting state; Reference Figure 10 As shown, the main loading mechanism 202 drives the yaw rotating body 23 and the yaw mounting bracket 21 to slide on the mounting main frame 400, resulting in a compact structural arrangement.

[0079] refer to Figure 11 As shown, in this embodiment, the tilting mechanism 4 includes a tilting frame 41 and a tilting drive mechanism 42. The tilting drive mechanism 42 is connected to the tilting frame 41 and is drivenly connected to the mounting main frame 400. The tilting drive mechanism 42 is used to drive the mounting main frame 400 to swing, so that the yaw rotating body 23 swings.

[0080] refer to Figure 1 , 2 As shown in Figures 9, 10, and 11, in practical applications, the tilt drive mechanism 42 drives the mounting frame 400 to swing, thereby causing the force sensor 100, yaw rotating body 23, force measuring base 101, force measuring top seat 102, loading head 1, and power mechanism 2 to swing, so that the tire under test 01 swings, simulating the tilt test of an aircraft tire. Specifically, the tilt drive mechanism 42 can be a hydraulic cylinder.

[0081] refer to Figure 12 As shown, in this embodiment, the tilt mechanism 4 further includes a tilt locking assembly 43, which includes a tilt separation plate 431, a connecting plate 432 mounted on the mounting main frame 400, a locking member 433 for locking the tilt separation plate 431 to the connecting plate 432, and a fixing member 434 for locking the tilt separation plate 431 to the tilt frame 41.

[0082] refer to Figure 9 , 11 As shown, in practical applications, the tilt locking assembly 43 can be configured as two sets, respectively connected to both ends of the swing center of the mounting main frame 400, to improve the connection stability of the mounting main frame 400. (Refer to...) Figure 12 As shown, when it is necessary to lock the tilt frame 41 and the tilt separation plate 431, firstly, the locking of the tilt separation plate 431 and the connecting plate 432 is released by the locking member 433, and then the tilt frame 41 and the tilt separation plate 431 are locked by the fixing member 434, so that the tilt separation plate 431 is in contact with the tilt frame 41.

[0083] refer to Figure 13As shown, the gap between the roll separation plate 431 and the roll frame 41 is successfully eliminated, ensuring a tight connection between the roll separation plate 431 and the roll frame 41. The main mounting frame 400 is stably locked to the roll frame 41 via the roll separation plate 431, preventing the main mounting frame 400 and the roll frame 41 from shaking and improving the locking stability of the main mounting frame 400; Reference Figure 12 As shown, when tilt adjustment is required from the locked state, the locking of the tilt frame 41 and the tilt separation plate 431 is first released by the fixing member 434, and then the tilt separation plate 431 and the connecting plate 432 are locked by the locking member 433. This creates a gap between the tilt separation plate 431 and the tilt frame 41, and makes the tilt separation plate 431 fit with the connecting plate 432. By changing the position of the tilt separation plate 431, a space is provided between the mounting main frame 400 and the tilt frame 41 to allow for smooth swinging, preventing friction between the tilt frame 41 and the mounting main frame 400 during the tilting process, reducing the impact of friction on the tilting process, and ensuring the accuracy of the tilt test.

[0084] refer to Figure 12 As shown, in this embodiment, the tilt locking assembly 43 further includes a tilt guide post 435, the tilt separation plate 431 is provided with a tilt mating hole 4311, the tilt guide post 435 extends into the tilt mating hole 4311 and mates with the tilt mating hole 4311, the tilt frame 41 is provided with a tilt guide hole 411, and both the locking member 433 and the tilt guide post 435 can pass through the tilt guide hole 411. When the mounting main frame 400 tilts, the tilt guide post 435 moves along the tilt guide hole 411, smoothly guiding the tilt of the mounting main frame 400.

[0085] refer to Figure 12 , 13As shown, in this embodiment, the tilt frame 41 is provided with a plurality of tilt locking holes 412, and the tilt separation plate 431 is provided with a plurality of separation locking holes 4312. The fixing member 434 passes through the tilt locking holes 412 and the separation locking holes 4312 to lock the tilt frame 41 and the tilt separation plate 431. The tilt locking assembly 43 also includes a detection switch 436, which is connected to the connecting plate 432. The detection switch 436 is used to detect the gap between the tilt separation plate 431 and the connecting plate 432 before the main frame 400 tilts. When the detection switch 436 detects that there is no gap between the tilt separation plate 431 and the connecting plate 432, it indicates that the fixing member 434 has released the locking of the tilt frame 41 and the tilt separation plate 431, and the locking member 433 has locked the tilt separation plate 431 and the connecting plate 432 to prevent the tilt frame 41 and the tilt separation plate 431 from being locked in a locked state. If there is no gap between the tilt separation plate 431 and the tilt frame 41, friction will occur between the tilt separation plate 431 and the tilt frame 41, which could cause the equipment to be damaged by force or fail to start, making the operation of the equipment more reliable.

[0086] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A tire testing loading force measuring platform, characterized in that, It includes a force measuring base (101), a force measuring top seat (102), a force measuring sensor (100) connected between the force measuring base (101) and the force measuring top seat (102), and a power mechanism (2). The power mechanism (2) is driven to the force measuring top seat (102). The force measuring base (101) is driven to be connected to a loading head (1). The loading head (1) is used to install the tire (01) to be tested. The power mechanism (2) includes a yaw mechanism (201) and a main loading mechanism (202). The yaw mechanism (201) includes a yaw mounting bracket (21), a yaw drive mechanism (22) mounted on the yaw mounting bracket (21), and a yaw rotating body (23) drivenly connected to the yaw drive mechanism (22). The yaw rotating body (23) is drivenly connected to the force measuring top seat (102). The yaw rotating body (23) is rotatably connected to the yaw mounting frame (21), and the yaw drive mechanism (22) is used to drive the yaw rotating body (23) to rotate horizontally; The main loading mechanism (202) is driven to connect with the yaw rotating body (23), and the main loading mechanism (202) is used to drive the yaw rotating body (23) to move up and down; The yaw mounting bracket (21) is provided with a first mounting slot (211) and a second mounting slot (212). Both the first mounting slot (211) and the second mounting slot (212) are provided with bearings (213). The yaw rotating body (23) is mounted on the first mounting slot (211) and the second mounting slot (212) through the bearings (213). The yaw drive mechanism (22) includes a rotating body drive unit (221) and a yaw limiter (222) that is driven and connected to the rotating body drive unit (221). The yaw limiter (222) is connected to the yaw rotating body (23). The yaw drive mechanism (22) further includes a yaw connecting plate (223) connected to the yaw mounting bracket (21). The yaw connecting plate (223) is equipped with a first yaw limit block (224) and a second yaw limit block (225). The yaw limit body (222) moves within the travel range between the first yaw limit block (224) and the second yaw limit block (225). The first yaw limit block (224) and the second yaw limit block (225) are used to limit the yaw limit body (222).

2. The tire testing loading force measuring platform according to claim 1, characterized in that, The tire test loading force measuring platform also includes a loading adjustment mechanism (3), which is connected to the loading head (1); The loading adjustment mechanism (3) includes a loading adjustment frame (31), a loading adjustment drive mechanism (32), a loading locking assembly (33), and an adjustment pad (34). The loading adjustment frame (31) is connected to the force measuring base (101). The loading adjustment drive mechanism (32) is used to adjust the space between the loading adjustment frame (31) and the loading head (1) to increase or decrease the installation adjustment pad (34). The loading locking assembly (33) is used to lock the loading adjustment frame (31), the adjustment pad (34) and the loading head (1) to eliminate the gap between the loading adjustment frame (31), the adjustment pad (34) and the loading head (1).

3. The tire testing loading force measuring platform according to claim 2, characterized in that, The loading adjustment drive mechanism (32) includes a loading screw (321) threadedly connected to the loading head (1) and a screw rotation drive unit (322) driven by the loading screw (321). The screw rotation drive unit (322) is mounted on the loading adjustment frame (31). The screw rotation drive unit (322) drives the loading screw (321) to rotate so that the loading head (1) moves up and down.

4. The tire testing loading force measuring platform according to claim 2, characterized in that, The two opposite sides of the adjusting pad (34) are respectively provided with pad mounting groove (341) and pad positioning part (342). The loading head (1) is provided with loading mounting groove (1001). The pad positioning part (342) is installed in cooperation with the loading mounting groove (1001). Two adjacent adjusting pads (34) are installed in cooperation with the pad mounting groove (341) and the pad positioning part (342). The loading adjusting frame (31) is provided with adjusting frame mounting groove (311). The adjusting frame mounting block (312) is detachably installed in the adjusting frame mounting groove (311). The adjusting frame mounting block (312) is installed in cooperation with the pad mounting groove (341).

5. A tire testing loading device, comprising the tire testing loading force measuring platform according to claim 1, characterized in that, The tire test loading device includes a main mounting frame (400) connected to the yaw mounting frame (21) and a tilting mechanism (4) for driving the main mounting frame (400) to swing. The main loading mechanism (202) is connected to the main mounting frame (400), and the yaw mounting frame (21) is slidably connected to the main mounting frame (400).

6. The tire testing loading device according to claim 5, characterized in that, The tilting mechanism (4) includes a tilting frame (41) and a tilting drive mechanism (42). The tilting drive mechanism (42) is connected to the tilting frame (41) and is driven to the mounting frame (400). The tilting drive mechanism (42) is used to drive the mounting frame (400) to swing so that the yaw rotating body (23) swings.

7. The tire testing loading device according to claim 6, characterized in that, The tilt mechanism (4) further includes a tilt locking assembly (43), which includes a tilt separation plate (431), a connecting plate (432) mounted on the mounting main frame (400), a locking member (433) for locking the tilt separation plate (431) to the connecting plate (432), and a fixing member (434) for locking the tilt separation plate (431) to the tilt frame (41). When locked, the locking member (433) releases the locking between the roll separation plate (431) and the connecting plate (432), and the fixing member (434) locks the roll frame (41) and the roll separation plate (431); and makes the roll separation plate (431) fit against the roll frame (41); When it is necessary to adjust the tilt from the locked state, the fixing member (434) releases the locking of the tilt frame (41) and the tilt separation plate (431), and the locking member (433) locks the tilt separation plate (431) and the connecting plate (432) together, so that there is a gap between the tilt separation plate (431) and the tilt frame (41), and so that the tilt separation plate (431) and the connecting plate (432) are in contact.

8. The tire testing loading device according to claim 7, characterized in that, The tilt locking assembly (43) also includes a tilt guide post (435). The tilt separation plate (431) is provided with a tilt mating hole (4311). The tilt guide post (435) extends into the tilt mating hole (4311) and mates with the tilt mating hole (4311). The tilt frame (41) is provided with a tilt guide hole (411). Both the locking member (433) and the tilt guide post (435) can pass through the tilt guide hole (411). When the mounting main frame (400) tilts and swings, the tilt guide post (435) moves along the tilt guide hole (411).

9. The tire testing loading device according to claim 8, characterized in that, The tilt frame (41) is provided with a plurality of tilt locking holes (412), the tilt separation plate (431) is provided with a plurality of separation locking holes (4312), and the fastener (434) passes through the tilt locking holes (412) and the separation locking holes (4312) to lock the tilt frame (41) and the tilt separation plate (431); The tilt locking assembly (43) also includes a detection switch (436) connected to the connecting plate (432). The detection switch (436) is used to detect the gap between the tilt separation plate (431) and the connecting plate (432) before the main frame (400) tilts.

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