Tire testing machine with six-legged assembly
By using a six-legged assembly and a flat strip rolling surface unit on the tire test bench, precise tire movement in different positions is achieved, solving the problem of insufficient simulation of chassis kinematics in existing technologies and providing a resource-saving test bench.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHAFA FRIEDRICH SCHAFFEN CO LTD
- Filing Date
- 2021-12-02
- Publication Date
- 2026-05-29
AI Technical Summary
Existing tire testing benches are inadequate in simulating chassis kinematics during road driving, and they also consume a lot of resources and materials.
By employing a six-legged assembly with six linear drive elements and a rolling surface unit formed by a flat belt segment, the precise movement of the tire in different positions can be achieved by adjusting the length and direction of the linear drive elements, thus simulating actual road conditions.
It provides a robust, material- and resource-saving tire test bench that can better simulate chassis kinematics during road driving, increasing the tire's range of motion during testing.
Smart Images
Figure CN116569017B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a tire testing bench. Background Technology
[0002] Tire test benches are known from the prior art. These tire test benches typically have a frame and a tire retainer. A tire with a tread is mounted on the tire retainer in a manner that allows it to rotate about its axis of rotation. When the tire is rotatably mounted on the tire retainer, the tire can move relative to the frame to different positions.
[0003] A rolling surface unit with a rolling surface, as known in the prior art, is provided in a tire test bench. This rolling surface can move relative to the frame. The rolling surface of the rolling surface unit can also be referred to as a road substitute and is configured to approximate conditions on a road.
[0004] When the tire is rotatably mounted on the tire retainer, the tire can be brought into a contact position in which the tire tread and rolling surface are in contact. When the tire and rolling surface are in contact and the rolling surface moves relative to the tire, the tire can roll on the rolling surface.
[0005] Generally, there is a desire to provide a robust, material- and resource-saving tire test bench that has an optimal space for the tire to move within during testing, which particularly well simulates the actual chassis kinematics when driving on the road. Summary of the Invention
[0006] Therefore, the object of the present invention is to provide a robust, material- and resource-saving tire test bench having a movement space in which the tire can move during testing in an optimal manner, wherein the actual chassis kinematics when driving on a road are particularly well simulated.
[0007] According to the present invention, the aforementioned task is solved by a tire testing stand according to the invention. The tire testing stand has a frame. Furthermore, the tire testing stand has a tire retainer. A tire with a tread can be mounted on the tire retainer in a manner rotatable about its axis of rotation. Furthermore, the tire testing stand has a hexapod assembly (Hexapod-Anordnung) with six linear drive elements. Each of the six linear drive elements is mounted on the frame via a first end and on the tire retainer via a second end. Furthermore, the tire testing stand has a rolling surface unit with a rolling surface. The rolling surface can move relative to the frame. Furthermore, when the tire is rotatably mounted on the tire retainer, the tire can be brought into contact positioning by adjusting the linear drive elements of the hexapod assembly. In contact positioning, the tire tread and the rolling surface are in contact. Furthermore, when the tread and the rolling surface are in contact and the rolling surface moves relative to the tire, the tire rolls on the rolling surface. In the initial configuration, the tangential plane extending parallel to the axis of rotation on the tread and the tangential plane on the rolling surface are identical. Furthermore, in the initial configuration, the tangential velocity of the tread and the tangential velocity of the rolling surface are the same at the contact point between the tread and the rolling surface. Additionally, each force acting on the tire can be decomposed into a lateral force component extending in the tangential plane and parallel to the axis of rotation, a tangential force component extending in the tangential plane and perpendicular to the lateral force component, and a radial force component extending perpendicular to the tangential plane. Furthermore, the six linear drive elements are arranged in the initial configuration such that at least one of the six linear drive elements is arranged such that when this at least one linear drive element applies a force to the tire, the maximum force component of the force is oriented along the direction of the lateral force component. Furthermore, the six linear drive elements are arranged in the initial configuration such that when this at least one linear drive element applies a force to the tire, the maximum force component of the force is oriented along the direction of the tangential force component. Furthermore, the six linear drive elements are arranged in the initial configuration such that at least one of the six linear drive elements is arranged such that when the at least one linear drive element applies a force to the tire, the maximum force component of the force is oriented in the direction of the radial force component.
[0008] The tire test bench has a frame. Various components of the tire test bench can be mounted on the frame, such as the first end of each of the six linear drive elements. Furthermore, operating elements for operating the tire test bench by the operator can be mounted on the frame of the tire test bench as part of these various components.
[0009] In addition, the tire test bench also has a tire retainer. A tire with a tread can be mounted on this tire retainer in a manner that allows it to rotate about its axis of rotation. Therefore, a tire can be mounted on the tire retainer or not. In particular, because the tire retainer can be moved relative to the frame and brought to different positions by adjusting the linear drive element, the tire mounted on the tire retainer can be moved relative to the frame and brought to different positions by adjusting the linear drive element.
[0010] Furthermore, the tire test bench also features a hexapod assembly with six linear drive elements. Specifically, each of the six linear drive elements can be adjusted in length. The hexapod assembly can be referred to as a parallel kinematic mechanism. The advantage of the hexapod assembly is that it can achieve high stiffness with relatively low space requirements compared to conventional adjustment units constructed as serial kinematic mechanisms. Furthermore, the hexapod assembly offers the advantage of higher adjustment accuracy compared to conventional adjustment units constructed as serial kinematic mechanisms. In particular, the tire can be brought into different positions with higher precision compared to conventional adjustment units constructed as serial kinematic mechanisms. Surprisingly, within the scope of this invention, it has been found that the hexapod assembly can better simulate the actual chassis kinematics of a vehicle in a test environment compared to tire test benches known from the prior art.
[0011] Each of the six linear drive elements is mounted on the frame with a first end and on the tire retainer with a second end. The six linear drive elements can be understood as acting in parallel between the frame and the tire retainer, thus the six-legged assembly can be referred to as a parallel kinematic mechanism. In particular, by adjusting the linear drive elements, the tire retainer can be moved relative to the frame and brought into different positions. Preferably, each of the six linear drive elements is pivotally mounted on the frame with a first end and pivotally mounted on the tire retainer with a second end, so that each linear drive element can occupy different orientations by adjusting the linear drive element and pivoting relative to the frame and tire retainer.
[0012] Furthermore, the tire test bench also features a rolling surface unit with a rolling surface. The rolling surface can be formed by a flat section of a belt, which is at least partially wound around two belts rotatably supported on a frame. Preferably, the flat section extends along a tangential plane on the belt such that the contact point between the tire tread and the flat section lies within this tangential plane when the tire is rotatably mounted on a tire retainer and the tire tread is in contact with the flat section. The flatness of the belt section ensures that the tire can roll on the flat rolling surface. In particular, a flat rolling surface formed by a flat section is advantageous compared to a rolling surface formed by the arched outer surface of a drum, because a flat section can better simulate the actual road surface, especially its flat shape, than rolling surfaces known in the prior art, particularly those formed by the outer surface of a drum. It has been particularly proven that the rolling resistance of a tire rolling on a flat section can be significantly reduced compared to an arched rolling surface. Furthermore, compared to the rolling surface of a drum, which is sized to reduce curvature, the combination of belt and guide rollers provides a space-saving rolling surface. Alternatively, the rolling surface can be an arched rolling surface formed by the inner circumferential surface of the drum, which is rotatably supported on the frame. Preferably, the drum can be rotatably driven by a rolling surface drive unit. Alternatively, the rolling surface can be an arched rolling surface formed by the outer circumferential surface of the drum, which is rotatably supported on the frame. Preferably, this drum can also be rotatably driven by a rolling surface drive unit. Using the circumferential surface of a rotatably supported drum as the rolling surface ensures that a particularly large space can be provided for at least one linear drive element, especially a lateral drive element. Providing a particularly large space for at least one linear drive element also ensures sufficient structural space for the robust construction of at least one linear drive element.
[0013] The rolling surface can move relative to the frame. Therefore, the rolling surface can be driven by a rolling surface drive unit.
[0014] Furthermore, when the tire is rotatably mounted on the tire retainer, the tire can be brought into contact positioning by adjusting the linear drive element of the six-legged assembly. As already described, in particular, because the tire retainer can move relative to the frame and be brought into different positions by adjusting the linear drive element, the tire mounted on the tire retainer can move relative to the frame and be brought into different positions due to the adjustment of the linear drive element. In particular, the tire can be brought into contact positioning by adjusting the linear drive element of the six-legged assembly.
[0015] In contact positioning, the tire tread and rolling surface are in contact. Preferably, in addition to this contact positioning, the tire can be brought to another contact positioning by adjusting the linear drive element of the hexapod assembly, thereby adjusting, for example, the tire camber, the tire tilt, the tire load, especially the tire load on the tangential plane perpendicular to the rolling surface where the contact point between the tread and the rolling surface exists, and / or the tire positioning relative to the rolling surface, especially the positioning on the tangential plane parallel to the rolling surface where the contact point between the tread and the rolling surface exists, and the positioning of the rolling surface in the circumferential direction in the region perpendicular to the rolling surface and / or the positioning of the rolling surface in the circumferential direction in the region parallel to the rolling surface.
[0016] Furthermore, when the tread and rolling surface are in contact and the rolling surface moves relative to the tire, the tire rolls on the rolling surface. Preferably, the rolling surface is formed as a flat surface on which the tire can roll. Alternatively, preferably, the rolling surface can also be formed as an arched rolling surface. As already described, in addition to contact positioning, the tire can be brought to another contact positioning by adjusting the linear drive element of the hexapod assembly. If the tire is now rolling on the rolling surface, the tire can be brought to different loading states while rolling. For example, while the tire is rolling on the rolling surface, the tire camber, the tire tilt, the tire load, especially the tire load on the tangential plane perpendicular to the rolling surface where the contact point between the tread and the rolling surface exists, and / or the tire positioning relative to the rolling surface, especially the positioning on the tangential plane parallel to the rolling surface where the contact point between the tread and the rolling surface exists, and the positioning of the rolling surface circumferential direction in the region perpendicular to the rolling surface and / or the positioning of the rolling surface circumferential direction in the region parallel to the rolling surface.
[0017] In the initial configuration, the tangential planes parallel to the axis of rotation on the tire tread and the tangential planes on the rolling surface are identical. Furthermore, in the initial configuration, the tangential velocity of the tire tread and the tangential velocity of the rolling surface are identical at the contact point between the tire tread and the rolling surface. Preferably, in the initial configuration, the steering angle and the camber angle are both zero. In particular, when the steering angle is not zero and the camber angle is zero, the tangential planes extending parallel to the axis of rotation on the tire tread and the tangential planes on the rolling surface remain identical. However, preferably, when the steering angle is not zero and the camber angle is zero, the tangential velocity of the tire tread and the tangential velocity of the rolling surface are not identical at the contact point between the tire tread and the rolling surface. In particular, when the steering angle is not zero and the camber angle is zero, a configuration inconsistent with the initial configuration is occupied by the tire test bench. Furthermore, especially when the camber angle is not zero and the steering angle is zero, the tangential planes extending parallel to the axis of rotation on the tire tread and the tangential planes on the rolling surface are not identical. However, preferably, when the camber angle is not zero and the steering angle is zero, the tangential velocity of the tread and the tangential velocity of the rolling surface are the same at the contact point between the tread and the rolling surface. In particular, when the camber angle is not zero and the steering angle is zero, the tire test bench occupies a configuration inconsistent with the initial configuration. The contact point between the tread and the rolling surface can also be referred to as the wheel contact point.
[0018] Furthermore, each force acting on the tire can be decomposed into a lateral force component extending in the tangential plane and parallel to the axis of rotation, a tangential force component extending in the tangential plane and perpendicular to the lateral force component, and a radial force component extending perpendicular to the tangential plane. In particular, the directions of the lateral force component, the tangential force component, and the radial force component are mutually perpendicular.
[0019] Furthermore, the six linear drive elements are arranged in the initial configuration such that at least one of the six linear drive elements is arranged such that, when the at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the lateral force component. The at least one linear drive element (arranged such that, when the at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the lateral force component) may also be referred to as a lateral drive element. Preferably, the six linear drive elements include one lateral drive element.
[0020] Furthermore, the six linear drive elements are arranged in the initial configuration such that at least one of the six linear drive elements is arranged such that, when the at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the tangential force component. The at least one linear drive element among the six linear drive elements (arranged such that, when the at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the tangential force component) may also be referred to as a tangential drive element. Preferably, the six linear drive elements include one tangential drive element.
[0021] Preferably, the lateral drive element and the tangential drive element are mounted on the tire retainer in a pivotal manner such that a first straight line oriented along the main extension direction of the lateral drive element and a second straight line oriented along the main extension direction of the tangential drive element intersect. Preferably, the first straight line oriented along the main extension direction of the lateral drive element and the second straight line oriented along the main extension direction of the tangential drive element intersect at an angle of 90°. Preferably, the lateral drive element and the tangential drive element are mounted on the tire retainer in a pivotal manner such that the mounting point is arranged such that the distance from the contact point between the tread and the flat strip section is shorter than the width of the rolling surface perpendicular to the rolling surface circumferential direction.
[0022] Furthermore, the six linear drive elements are arranged in the initial configuration such that at least one of the six linear drive elements is arranged such that when the at least one linear drive element applies a force to the tire, the maximum force component of the force is oriented in the direction of the radial force component. The at least one linear drive element (arranged such that when the at least one linear drive element applies a force to the tire, the maximum force component of the force is oriented in the direction of the radial force component) may also be referred to as a radial drive element.
[0023] In summary, it can be clearly understood that the tire test bench has at least one lateral drive element, at least one tangential drive element, and at least one radial drive element. Each of these linear drive elements is designed to perform a specific function, and particularly distinct from other linear drive elements, in terms of the lateral force component, tangential force component, and radial force component. Therefore, the lateral drive element is designed such that, when at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the lateral force component; the tangential drive element is designed such that, when at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the tangential force component; and the radial drive element is designed such that, when at least one linear drive element applies a force to the tire, the maximum force component of that force is oriented along the direction of the radial force component.
[0024] In the hexapod assemblies known in the prior art, the six linear drive elements, especially due to the symmetrical structure of these hexapod assemblies, are not designed such that each of the three linear drive elements can perform a specific function different from the other three linear drive elements, particularly in terms of the lateral force component, tangential force component, and radial force component. The hexapod assemblies known in the prior art have identically constructed linear drive elements, which, for example, have the same length, are arranged symmetrically with each other, form the same angles with each other, and are designed for the same force. In principle, the hexapod assemblies known in the prior art can also be used in tire test benches because they are also capable of realizing the up-and-down movement, lateral movement, and angular movement of the tire retainer. However, the hexapod assemblies known in the prior art must be constructed more robustly than the tire test bench according to the invention so that the same force can be applied to the tire on the tire retainer during testing. Therefore, a tire test bench that is particularly economical in terms of materials and resources can be achieved using at least one lateral drive element, at least one tangential drive element, and at least one radial drive element. Because of the use of at least one lateral drive element, at least one tangential drive element, and at least one radial drive element, it is possible to configure these elements differently, such that their adjustment lengths can vary, for example, depending on which adjustment length is desired for tire positioning. For example, the hexapod assembly according to the invention is therefore designed such that tilt adjustment is greater than camber adjustment, or wheel feed is greater than lateral or tangential adjustment. Thus, a tire test bench with optimal movement space for the tire during testing can be provided. Furthermore, the at least one lateral drive element, at least one tangential drive element, and at least one radial drive element can be designed for the lateral, tangential, and radial force components desired during tire testing, which particularly enables a material- and resource-saving tire test bench.
[0025] In particular, it has been demonstrated within the scope of this invention that, especially compared to the movement space when a six-legged assembly known from the prior art may be applied, the combination of at least one lateral drive element, at least one tangential drive element, and at least one radial drive element can significantly increase the movement space in which the tire can move during testing, while the six-legged assembly does not produce movement singularities that would prevent the adjustment of the linear drive element from causing the desired movement of the tire retainer, thus providing a robust tire test bench.
[0026] Furthermore, within the scope of this invention, it is found that a combination consisting of at least one lateral drive element, at least one tangential drive element, and at least one radial drive element can particularly well simulate the actual chassis kinematics when driving on a road.
[0027] In summary, it can be clearly understood that the present invention provides a robust, material- and resource-saving tire test bench with an optimal space for the tire to move within during testing, wherein the actual chassis kinematics during road driving are simulated particularly well.
[0028] In one embodiment, when the tire is rotatably mounted on a tire retainer and in contact positioning, the at least one linear drive element, arranged such that the maximum force component of the force applied to the tire by the at least one linear drive element is oriented along the direction of the lateral force component, is arranged in a direction extending parallel to the direction of the radial force component. In particular, the lateral drive element is thus arranged in a direction extending parallel to the direction of the radial force component. This arrangement of the lateral drive element in a direction parallel to the radial force component allows it to be positioned near the contact point between the tread and the rolling surface. This arrangement of the lateral drive element near the contact point between the tread and the rolling surface is advantageous, especially with large camber angles, and is particularly advantageous when testing motorcycle tires, because this arrangement ensures optimal and direct force flow from the lateral drive element.
[0029] In one embodiment, two of the six linear drive elements are arranged such that, when these two linear drive elements apply force to the tire, the largest force component of these forces is oriented in the direction of the radial force component. Preferably, the six linear drive elements thus include two radial drive elements. In particular, the radial drive elements are arranged such that the tire is centrally positioned between the radial drive elements. Preferably, the two radial drive elements are arranged symmetrically about the contact point between the tread and the rolling surface. In particular, the symmetrical arrangement of the two radial drive elements with respect to the contact point between the tread and the rolling surface can reduce or even completely avoid bending moments caused by the radial force component. Preferably, each radial drive element is mounted on the frame in a swingable manner using its first end. Preferably, the two swing axes extend along the same straight line, and the contact point is also arranged along this straight line. Thus, when the tire is adjusted to different contact positions, the tire load vector extending along the radial drive element maintains approximately the same distance from the contact point. Furthermore, the radial drive elements are mounted on the tire retainer in a swingable manner using their second ends, wherein the two swing axes extend along the same straight line. Preferably, in the initial configuration, the two radial drive elements are oriented perpendicular to the tangential plane and parallel to each other. Furthermore, preferably, in the initial configuration, the two radial drive elements extend at an angle to each other from the tire retainer section toward the tangential plane, wherein the distance between the two radial drive elements increases from the tire retainer section toward the tangential plane. When the two radial drive elements extend at an angle to each other from the tire retainer section toward the tangential plane in the initial configuration (wherein the distance between the two radial drive elements increases from the tire retainer section toward the tangential plane), the tire test bench is configured to be particularly rigid.
[0030] In one embodiment, when the tire is rotatably mounted on a tire retainer and arranged between two linear drive elements in contact positioning, the linear drive elements are arranged such that, when the two linear drive elements apply forces to the tire, the largest force component of each force is oriented in the direction of the radial force component. Therefore, in contact positioning, the tire is preferably located between the two radial drive elements. In particular, the radial drive elements are arranged such that the tire is centrally positioned between the radial drive elements. Preferably, the two radial drive elements are arranged symmetrically about the contact point between the tread and the rolling surface. In particular, the symmetrical arrangement of the two radial drive elements about the contact point between the tread and the rolling surface can reduce or even completely avoid bending moments caused by radial force components.
[0031] In one embodiment, the two linear drive elements, each arranged such that the maximum force component of each force applied to the tire by the two linear drive elements is oriented in the direction of the radial force component, are initially staggered in the direction of rotation axis. This staggered arrangement of the radial drive elements in the direction of rotation axis (i.e., the direction of the tire's rotation axis in the initial configuration) is particularly advantageous when the tire test bench is horizontally arranged, i.e., when the tire retainer is horizontally arranged next to the rolling surface unit. Because the radial drive elements are staggered in the direction of rotation axis in the initial configuration, the tire can be, for example, brought onto the tire retainer from above and then lifted upwards away from it. Since the radial drive elements can be staggered in the direction of rotation axis in the initial configuration, it is possible to use a crane to mount, and remove, particularly heavy tires, onto the tire test bench.
[0032] In one embodiment, at least one of the six linear drive elements is arranged in an initial configuration such that adjusting this at least one linear drive element enables the tire to pivot about both a horizontal and a vertical axis from its orientation in the initial configuration. This at least one linear drive element (arranged in the initial configuration such that adjusting this at least one linear drive element enables the tire to pivot about both a horizontal and a vertical axis from its orientation in the initial configuration) may also be referred to as a steering / camber drive element. Preferably, the steering / camber drive element is pivotally mounted on the frame using a first end and pivotally mounted on the tire retainer using a second end. Preferably, at least one steering / camber drive element is pivotally mounted on the tire retainer such that the mounting point is arranged further away from the contact point between the tread and the rolling surface than the mounting points of the lateral drive elements and the tangential drive elements, particularly arranged further away from the contact point between the tread and the rolling surface than the length of at least one radial drive element in the initial configuration. At least one steering / camber drive element is mounted on the tire retainer at a point away from the contact point between the tread and the rolling surface, ensuring that relatively little force from at least one steering / camber drive element must be applied to the tire so that the tire can pivot about the horizontal and vertical axes.
[0033] In one embodiment, two of the six linear drive elements are arranged in an initial configuration such that adjusting these two linear drive elements enables the tire to pivot about a horizontal and a vertical axis from its orientation in the initial configuration. These two linear drive elements (arranged in an initial configuration such that adjusting these two linear drive elements enables the tire to pivot about a horizontal and a vertical axis from its orientation in the initial configuration) may also be referred to as steering / camber drive elements.
[0034] In one embodiment, the tire retainer has a first swing arm pivotally mounted on a frame, and a second end of at least one linear drive element is pivotally mounted on the first swing arm. The first linear drive element is arranged in an initial configuration such that adjusting the first linear drive element allows the tire to pivot about a horizontal and vertical axis from its initial position. Therefore, the tire retainer has a first swing arm pivotally mounted on the frame, and a second end of a first steering / camber drive element is pivotally mounted on the first swing arm. Because the tire retainer has a first swing arm pivotally mounted on the frame (with the second end of the first steering / camber drive element pivotally mounted on the first swing arm), the first steering / camber drive element can be constructed to be shorter, as the first swing arm ensures that relatively less force is applied to the tire to pivot it about the horizontal and vertical axes. Preferably, the tire retainer has a first coupling rod pivotally mounted on the first swing arm. In particular, the first coupling rod can be mounted in a pivoting manner on the tire retainer section. Preferably, the second end of the first steering / camber drive element is mounted in a pivoting manner on the first control arm.
[0035] In one embodiment, the tire retainer has a second swing arm pivotally mounted on a frame, and a second end of a second linear drive element, at least one of which is pivotally mounted on the second swing arm. This second linear drive element is arranged in an initial configuration such that adjusting the linear drive element allows the tire to pivot about a horizontal and vertical axis from its orientation in the initial configuration. Therefore, the tire retainer has a second swing arm pivotally mounted on the frame, and a second end of a second steering / camber drive element is pivotally mounted on the second swing arm. Because the tire retainer has a second swing arm pivotally mounted on the frame (with the second end of the second steering / camber drive element pivotally mounted on the second swing arm), the second steering / camber drive element can be constructed to be shorter, as the second swing arm ensures that relatively less force is applied to the tire to pivot it about the horizontal and vertical axes. Preferably, the tire retainer has a second coupling rod pivotally mounted on the second swing arm. In particular, the second coupling rod can be pivotally mounted on a section of the tire retainer. Preferably, the second end of the second steering / tilt drive element is mounted on the second swing arm in a swingable manner.
[0036] Preferably, the first and second coupling rods are arranged parallel to each other. Particularly preferably, the first and second coupling rods extend at an angle to each other from the tire retainer section toward either the first or second swing arm, wherein the distance between the first and second coupling rods increases from the tire retainer section toward either the first or second swing arm. This angled extension of the first and second coupling rods provides a particularly rigid tire test bench.
[0037] Preferably, the first radial drive element and the first coupling rod are mounted on the tire retainer in a pivoting manner, such that a first straight line oriented along the main extension direction of the first radial drive element and a second straight line oriented along the main extension direction of the first coupling rod intersect. Furthermore, preferably, the second radial drive element and the second coupling rod are mounted on the tire retainer in a pivoting manner, such that a first straight line oriented along the main extension direction of the second radial drive element and a second straight line oriented along the main extension direction of the second coupling rod intersect. This provides a relatively large and stable operating range for tire adjustment.
[0038] In one embodiment, the tire retainer has a frame section and a tire section fastened to a frame, the tire being rotatably mounted on the tire section. The frame section and tire section are connected via a force measuring unit. When the tire test bench is in its initial configuration, the force measuring unit has at least one lateral force measuring element extending in the direction of the lateral force component, at least one tangential force measuring element extending in the direction of the tangential force component, and at least one radial force measuring element extending in the direction of the radial force component. By extending at least one lateral force measuring element in the direction of the lateral force component, at least one tangential force measuring element in the direction of the tangential force component, and at least one radial force measuring element in the direction of the radial force component, it is ensured that different force components are preferably detected accurately and independently.
[0039] In one embodiment, at least one linear drive element of the hexapod assembly is configured as a hydraulic cylinder. Configuring at least one linear drive element of the hexapod assembly as a hydraulic cylinder ensures the transmission of relatively high forces. Furthermore, configuring at least one linear drive element of the hexapod assembly as a hydraulic cylinder ensures uniform and precise adjustment movements. In particular, configuring at least one linear drive element of the hexapod assembly as a hydraulic cylinder improves the positioning accuracy of the hexapod assembly. Particularly preferably, each of the linear drive elements of the hexapod assembly is configured as a hydraulic cylinder. The advantages mentioned for at least one linear drive element apply accordingly to each of the linear drive elements.
[0040] In one embodiment, at least one linear drive element of the hexapod assembly is configured as an electromechanical linear drive device. Configuring at least one linear drive element of the hexapod assembly as an electromechanical linear drive device ensures relatively high adjustment speed and high adjustment acceleration for adjusting the linear drive element. Furthermore, configuring at least one linear drive element of the hexapod assembly as an electromechanical linear drive device ensures uniform and precise adjustment movements. In particular, by configuring at least one linear drive element of the hexapod assembly as an electromechanical linear drive device, the positioning accuracy of the hexapod assembly can be improved. Particularly preferably, each linear drive element of the hexapod assembly is configured as an electromechanical linear drive device. The advantages mentioned for at least one linear drive element apply accordingly to each linear drive element.
[0041] In one embodiment, the tire test bench has a tire drive unit that can drive the tire in the circumferential direction when the tire is rotatably mounted on a tire retainer. With the help of the tire drive unit, the tire can be driven in the circumferential direction and thus placed in rotational motion about its axis of rotation. Furthermore, the tire drive unit enables the tire to be accelerated in the circumferential direction while rolling on a flat belt segment, thereby bringing the tire into another loaded state. In the case where the tire test bench does not have a belt drive element, the belt can be driven in the circumferential direction by driving the tire in the circumferential direction and by contact between the tread and the flat belt segment.
[0042] In one embodiment, the tire test bench includes a tire braking unit that can brake the tire in the circumferential direction when the tire is rotatably mounted on a tire retainer. By means of the tire braking unit, the tire can be braked in the circumferential direction, thus slowing its rotational movement about its axis of rotation. The tire's rotational speed can be reduced in the circumferential direction by means of the tire braking unit. Furthermore, the tire braking unit enables the tire to be braked in the circumferential direction while rolling on a flat strip, thereby allowing the tire to be brought into another loaded state. Attached Figure Description
[0043] Other features, advantages, and applications of the invention will become apparent from the following description of embodiments and accompanying drawings. All features described and / or illustrated herein, in themselves and in any combination, form the subject matter of the invention. Furthermore, in these drawings, the same reference numerals are used for the same or similar objects.
[0044] Figure 1 and Figure 2 Schematic views of a first embodiment of the tire testing bench according to the present invention are shown respectively;
[0045] Figure 3 Two schematic views are shown of a frame section, a tire section, and a force measurement unit according to a first embodiment of a tire testing bench based on the present invention;
[0046] Figure 4 and Figure 5 Schematic views of a second embodiment of the tire testing bench according to the present invention are shown respectively;
[0047] Figure 6 and Figure 7 Schematic views of a third embodiment of the tire testing stand according to the present invention are shown respectively; and
[0048] Figure 8 Two schematic views are shown of a fourth embodiment of a tire testing stand according to the present invention. Detailed Implementation
[0049] Figure 1 and Figure 2 The diagram shows schematic views of a first embodiment of the tire testing stand 1 according to the present invention. The tire testing stand 1 has a not-in... Figure 1 and Figure 2 The frame, tire retainer 3, hexapod assembly 5, and rolling surface unit 7 are shown in the diagram. Additionally, the tire test bench 1 also features components not shown in the diagram. Figure 1 and Figure 2 The tire drive unit shown in the image is also not in Figure 1 and Figure 2 The tire braking unit shown in the image and the same one not shown in the image Figure 1 and Figure 2 The rolling surface drive unit is shown in the figure.
[0050] The hexapod assembly 5 has six linear drive elements 9. Each of the six linear drive elements 9 has a first end 11 and a second end 13. Each of the six linear drive elements 9 is mounted on a frame via the first end 11 and on a tire retainer 3 via the second end 13. Figure 1 and Figure 2 In the first embodiment of the tire test bench 1 according to the invention shown, each of the six linear drive elements 9 of the hexapod assembly 5 is configured as an electromechanical linear drive device. Alternatively, each of the six linear drive elements 9 of the hexapod assembly 5 can be modified to be configured as a hydraulic cylinder.
[0051] also, Figure 1 and Figure 2 The diagram shows a tire 15 having a tread 17. The tire 15 is mounted on a tire retainer 3 in a manner rotatable about its axis of rotation 19. A tire drive unit can drive the tire 15, which is rotatably mounted on the tire retainer 3, in the tire circumferential direction Re. A tire braking unit can brake the tire 15, which is rotatably mounted on the tire retainer 3, in the tire circumferential direction Re, thereby reducing the rotational speed of the tire 15 in the tire circumferential direction Re.
[0052] As described above, the tire test bench 1 has a rolling surface unit 7. The rolling surface unit 7 has a flat rolling surface 21. The rolling surface 21 is movable relative to the frame. The tire 15, which is rotatably mounted on the tire retainer 3, can be brought into contact positioning by adjusting the linear drive element 9 of the hexapod assembly 5. Figure 1 and 2 As shown in the diagram, in this contact positioning, the tread 17 and rolling surface 21 of the tire 15 are in contact.
[0053] As described above, the tire test bench 1 has a tire drive unit. The tire drive unit can drive the tire 15, which is rotatably mounted on the tire retainer 3, in the tire circumferential direction Re. The rolling surface drive unit can drive the rolling surface 21 in the rolling surface circumferential direction Ab. Now, when the tread 17 and the rolling surface 21 are in contact and the rolling surface 21 moves relative to the tire 15, the tire 15 rolls on the rolling surface 21.
[0054] exist Figure 1 and Figure 2 In the first embodiment shown, the tire 15 can be positioned about the rolling surface 21 by means of the hexapod assembly 5. Specifically, by adjusting the linear drive element 9 of the hexapod assembly 5, the tire 15 can be brought into a contact position in which the tread 17 of the tire 15 is in contact with the rolling surface 21. Furthermore, by adjusting the linear drive element 9 of the hexapod assembly 5, in addition to… Figure 1 and Figure 2 In addition to the contact positioning shown, tire 15 can also be brought to other contact positioning, in which the tread 17 of tire 15 is also in contact with the rolling surface 21. Now, if tire 15 rolls on the rolling surface 21, tire 15 is brought to different loading states during rolling. When tire 15 rolls on the rolling surface 21, the camber, tilt, tire load, and / or positioning of tire 15 relative to the rolling surface 21 can be adjusted by adjusting the linear drive element 9. Furthermore, tire 15 can be driven in the circumferential direction Re by means of a tire drive unit, or braked in the circumferential direction Re by means of a tire braking unit. Thus, tire 15 can be brought to different loading states during rolling.
[0055] exist Figure 1 and Figure 2 The image shows a tire test bench 1 in its initial configuration. In this initial configuration, the tangential plane extending parallel to the rotation axis 19 on the tread 17 and the tangential plane on the rolling surface 21 are the same. In particular, the contact point 23 between the tread 17 and the rolling surface 21 lies in both tangential planes. Furthermore, in the initial configuration, the tangential velocity of the tread 17 and the tangential velocity of the rolling surface 21 are the same at the contact point 23 between the tread 17 and the rolling surface 21. Each force acting on the tire 15 can be decomposed into a lateral force component 25, a tangential force component 27, and a radial force component 29. The lateral force component 25 extends in the tangential plane and parallel to the rotation axis 19. The tangential force component 27 extends in the tangential plane and perpendicular to the lateral force component 25. The radial force component 29 extends perpendicular to the tangential plane.
[0056] In particular, the arrangement of the six linear drive elements 9 makes the present invention advantageous compared to the prior art, because these six linear drive elements 9 are not arranged symmetrically to each other as in the hexapod assembly known by the prior art.
[0057] Therefore, in Figure 1 and Figure 2 In the initial configuration shown, the six linear drive elements 9 are arranged such that one of the six linear drive elements 9 is arranged such that when this linear drive element 9 applies force to the tire 15, the maximum force component of the force is oriented along the direction of the lateral force component 25. This linear drive element 9 may also be referred to as the lateral drive element 31.
[0058] In addition, Figure 1 and Figure 2 In the initial configuration shown, the six linear drive elements 9 are arranged such that one of the six linear drive elements 9 is arranged such that when the linear drive element 9 applies a force to the tire 15, the maximum force component of the force is oriented in the direction of the tangential force component 27. This linear drive element 9 may also be referred to as the tangential drive element 33.
[0059] In addition, Figure 1 and Figure 2 In the initial configuration shown, the six linear drive elements 9 are arranged such that two of the six linear drive elements 9 are arranged such that when these two linear drive elements 9 apply force to the tire 15, the maximum force component of these forces is oriented along the direction of the radial force component 29. These two linear drive elements 9 can also be referred to as radial drive elements 35. The radial drive elements 35 are arranged such that the tire 15 is centrally located between the radial drive elements 35. Each radial drive element 35 is mounted on the frame in a pivotal manner using its first end 11, wherein two pivot axes extend along the same straight line, and the contact point 23 is also arranged along this straight line. Furthermore, the radial drive element 35 is mounted on the tire retainer 3 in a pivotal manner using its second end 13, wherein two pivot axes extend along the same straight line.
[0060] In addition, Figure 1 and Figure 2 In the initial configuration shown, the six linear drive elements 9 are arranged such that two of the six linear drive elements 9 are arranged in the initial configuration such that, by adjusting these two linear drive elements 9, the tire 15 can be adjusted from its orientation in the initial configuration around a horizontal axis (which is in...). Figure 1 and Figure 2(parallel to the tangential force component 27 and extending in the tangential plane) and the vertical axis (which is in) Figure 1 and Figure 2 (Extending along the radial force component 29) pivots. These two linear drive elements 9 can also be referred to as steering / camber drive elements 37. The tire retainer 3 has a first swing arm 39 pivotally mounted on the frame and a second swing arm 41 pivotally mounted on the frame. Furthermore, the tire retainer 3 has a first coupling rod 43 pivotally mounted on the first swing arm 39 and a second coupling rod 45 pivotally mounted on the second swing arm 41. The first coupling rod 43 and the second coupling rod 45 are each pivotally mounted on a section of the tire retainer 3. The second end 13 of the first steering / camber drive element 37 is pivotally mounted on the first swing arm 39. The second end 13 of the second steering / camber drive element 37 is pivotally mounted on the second swing arm 41.
[0061] exist Figure 1 and Figure 2 In the first embodiment of the tire test bench 1 shown, the two radial drive elements 35 are not oriented perpendicular to the tangential plane and are not oriented parallel to each other. Instead, the two radial drive elements 35 extend at an angle to each other from the section of the tire retainer 3 toward the tangential plane, wherein the distance between the two radial drive elements 35 increases from the section of the tire retainer 3 toward the tangential plane.
[0062] In addition, Figure 1 and Figure 2 In the first embodiment of the tire test bench 1 shown, the first coupling rod 43 and the second coupling rod 45 are not arranged parallel to each other. Instead, the first coupling rod 43 and the second coupling rod 45 extend at an angle from the section of the tire retainer 3 toward the first swing arm 39 or toward the second swing arm 41, wherein the distance between the first coupling rod 43 and the second coupling rod 45 increases from the section of the tire retainer toward the first swing arm 39 or toward the second swing arm 41.
[0063] Furthermore, the lateral drive element 31 and the tangential drive element 33 are mounted on the tire retainer 3 in a swingable manner such that a first straight line oriented along the main extension direction of the lateral drive element 31 and a second straight line oriented along the main extension direction of the tangential drive element 33 intersect.
[0064] Furthermore, the first radial drive element 35 and the first coupling rod 43 are mounted on the tire retainer 3 in a swingable manner such that a first straight line along the main extension direction of the first radial drive element 35 and a second straight line along the main extension direction of the first coupling rod 43 intersect.
[0065] Furthermore, the second radial drive element 35 and the second coupling rod 45 are mounted on the tire retainer 3 in a swingable manner such that a first straight line along the main extension direction of the second radial drive element 35 and a second straight line along the main extension direction of the second coupling rod 45 intersect.
[0066] Figure 3 The first embodiment of the tire test bench 1 according to the present invention shows the frame section 47, the tire section 49, and the force measuring unit 51 of the tire retainer 3. The frame section 47 is fastened to the frame. Figure 1 and 2 As shown, tire 15 is rotatably mounted on tire section 49. Frame section 47 and tire section 49 are connected to each other via force measuring unit 51. Force measuring unit 51 has three lateral force measuring elements 53 that extend along the direction of the lateral force component 25 (see [reference]). Figure 1 and Figure 2 Furthermore, the force measuring unit 51 has two tangential force measuring elements 55 that extend along the direction of the tangential force component 27 (see [link]). Figure 1 and Figure 2 Furthermore, the force measuring unit 51 has a radial force measuring element 57 that extends along the direction of the radial force component 29 (see [link]). Figure 1 and Figure 2 ).
[0067] Figure 4 and Figure 5The diagrams show schematic representations of a second embodiment of the tire test bench 1 according to the present invention. The second embodiment of the tire test bench 1 according to the present invention is substantially consistent with the first embodiment. However, the tire retainer 3 of the second embodiment does not have a first swing arm 39, a second swing arm 41, a first coupling rod 43, and a second coupling rod 45. Instead, two steering / camber drive elements 37 are respectively mounted on the frame in a swingable manner using a first end 11 and on the tire retainer 3 in a swingable manner using a second end 13, particularly on a section of the tire retainer 3. Furthermore, in the second embodiment of the tire test bench 1, the two radial drive elements 35 are oriented perpendicular to the tangential plane and parallel to each other. Furthermore, in the second embodiment of the tire test bench 1, the two steering / camber drive elements 37 are arranged parallel to each other. Furthermore, the first radial drive element 35 and the first steering / camber drive element 37 are mounted on the tire retainer 3 in a swingable manner such that a first straight line oriented along the main extension direction of the first radial drive element 35 and a second straight line oriented along the main extension direction of the first steering / camber drive element 37 intersect. Furthermore, the second radial drive element 35 and the second steering / camber drive element 37 are mounted on the tire retainer 3 in a swingable manner such that a first straight line oriented along the main extension direction of the second radial drive element 35 and a second straight line oriented along the main extension direction of the second steering / camber drive element 37 intersect. Furthermore, the tire retainer 3 according to the second embodiment of the tire test bench 1 of the present invention has... Figure 3 The frame section 47, tire section 49, and force measurement unit 51 shown and described in conjunction with the first embodiment are illustrated.
[0068] The features, technical effects and / or advantages described in the first embodiment of the tire test bench 1 of the present invention are also applicable, at least in a similar manner, to the second embodiment of the tire test bench 1 of the present invention, thereby eliminating the corresponding repetition.
[0069] Figure 6 and Figure 7 The figures show schematic views of a third embodiment of the tire testing bench 1 according to the present invention. The third embodiment of the tire testing bench 1 according to the present invention is substantially consistent with the first embodiment of the tire testing bench 1 according to the present invention. However, in the third embodiment, the rolling surface unit 7 has an arched rolling surface 21 formed by the inner circumferential surface of a drum rotatably mounted on a frame and rotatably driven by a rolling surface drive unit. Furthermore, the lateral drive element 31 of the third embodiment is arranged relative to the radial force component 29 (see...). Figure 1 and Figure 4 The direction in which it extends parallel to the direction of ). Figure 6and Figure 7 In this configuration, the lateral drive element 31 is arranged below the tire 15 and below the rolling surface 21. The arrangement of the lateral drive element 31 extending in a direction parallel to the radial force component 29 provides a particularly space-saving variant of the tire test bench 1. In this respect, it is particularly advantageous to use the surrounding surface of a rotatably supported drum as the rolling surface, as this provides a particularly large space for the lateral drive element 31, allowing it to be constructed accordingly robustly. Furthermore, the radial drive elements 35 are arranged such that the tire 15 is centrally positioned between them. Each radial drive element 35 is mounted on the frame in a swingable manner using its first end 11, wherein two swing axes extend along the same straight line; however, the contact point 23 is not arranged along this straight line. In a third embodiment, the contact point 23 is arranged in a tangential plane, wherein the two swing axes extend along their extending straight line parallel to the tangential plane and are spaced apart from these tangential planes in the direction of the rotation axis 19. Furthermore, the radial drive element 35 is mounted on the tire retainer 3 in a swingable manner via its second end 13, wherein the two swing axes extend along the same straight line. Furthermore, in the third embodiment of the tire test bench 1, the two radial drive elements 35 are oriented perpendicular to the tangential plane and parallel to each other. Furthermore, the tire retainer 3 of the third embodiment of the tire test bench 1 according to the present invention has… Figure 3 The frame section 47, tire section 49, and force measurement unit 51 shown and described in conjunction with the first embodiment are illustrated.
[0070] The features, technical effects, and / or advantages described in the first embodiment of the tire test bench 1 of the present invention, in conjunction with the second embodiment, are also applicable, at least in a similar manner, to the third embodiment of the tire test bench 1 of the present invention, thereby eliminating the corresponding repetition.
[0071] Figure 8 The diagram shows two schematic views of a fourth embodiment of the tire testing bench 1 according to the present invention. The fourth embodiment of the tire testing bench 1 according to the present invention is substantially consistent with the first embodiment of the tire testing bench 1 according to the present invention. Figure 8 The arrangement of the tire test bench 1 shown can also be referred to as a horizontal arrangement. However, in the fourth embodiment, the rolling surface unit 7 has an arched rolling surface 21 formed by the outer peripheral surface of a drum that is rotatably supported on a frame and rotatably driven by a rolling surface drive unit. In the fourth embodiment, the radial drive elements 35 are arranged offset from each other in the direction of the rotation axis 19 (rotation axis direction) in the initial configuration, thereby, for example, in Figure 8In the schematic view on the left, the tire 15 can be brought onto the tire retainer 3 from above and can be pulled upward away from the tire retainer. Since the radial drive elements 35 are arranged offset from each other in the direction of the rotation axis 19 in the initial configuration, heavy-duty tires 15 can be mounted on the tire test bench 1 using a crane and can be removed from the tire test bench.
[0072] The features, technical effects, and / or advantages described in the first, second, and third embodiments of the tire test bench 1 according to the present invention are also applicable, at least in a similar manner, to the fourth embodiment of the tire test bench 1 according to the present invention, thereby eliminating the corresponding repetition.
[0073] It should be further noted that "having" does not exclude other elements or steps, and "a" or "a certain" does not exclude multiple. It should also be noted that the features described with reference to the above embodiments can also be used in combination with other features of the other embodiments described above. Reference numerals should not be considered limiting.
[0074] List of reference numerals
[0075] 1 Tire testing bench
[0076] 3. Tire retainer
[0077] 5. Hexapod Components
[0078] 7 Rolling surface unit
[0079] 9 Linear drive elements
[0080] 11. First end of linear drive element
[0081] 13 The second end of the linear drive element
[0082] 15 tires
[0083] 17 Tread
[0084] 19 Rotation axis
[0085] 21 Rolling surface
[0086] 23 Contact points
[0087] 25. Lateral force component
[0088] 27 Tangential force components
[0089] 29 Radial force components
[0090] 31 Lateral drive element
[0091] 33 Tangential drive element
[0092] 35 Radial drive element
[0093] 37. Steering / Cycling Drive Element
[0094] 39 First swing arm
[0095] 41 Second swing arm
[0096] 43 First coupling rod
[0097] 45 Second coupling rod
[0098] 47 Frame Section
[0099] 49 Tire Section
[0100] 51 Force Measurement Unit
[0101] 53 Lateral force measuring element
[0102] 55 Tangential force measuring element
[0103] 57 Radial force measuring element
[0104] Re: Tire circumference direction
[0105] Ab Rolling surface surrounding direction
Claims
1. A tire testing stand (1), wherein the tire testing stand has frame, A tire retainer (3) is mounted on which a tire (15) having a tread (17) is rotatable about its axis of rotation (19). A hexapod assembly (5) having six linear actuating elements (9), wherein, Each of the six linear drive elements (9) is mounted on the frame via a first end (11) and on the tire retainer (3) via a second end (13), and A rolling surface unit (7) having a rolling surface (21) that can be driven relative to the frame. When the tire (15) is rotatably mounted on the tire retainer (3), the tire (15) can be brought into contact positioning by adjusting the linear drive element (9) of the hexapod assembly (5), in which the tread (17) of the tire (15) is in contact with the rolling surface (21). When the tread (17) and the rolling surface (21) are in contact and the rolling surface (21) is driven relative to the tire (15), the tire (15) rolls on the rolling surface (21). In the initial configuration, the tangential plane extending parallel to the rotation axis (19) on the tread (17) and the tangential plane on the rolling surface (21) are the same. The tangential velocity of the tread (17) and the tangential velocity of the rolling surface (21) are the same at the contact point (23) between the tread (17) and the rolling surface (21). Each force acting on the tire (15) can be decomposed into a lateral force component (25) extending in the tangential plane parallel to the rotation axis (19), a tangential force component (27) extending in the tangential plane perpendicular to the lateral force component (25), and a radial force component (29) extending perpendicular to the tangential plane. The six linear drive elements (9) are arranged in the initial configuration as follows: At least one of the six linear drive elements (9) is arranged such that when the at least one linear drive element (9) applies a force to the tire (15), the largest force component of that force is oriented along the direction of the lateral force component (25). At least one of the six linear drive elements (9) is arranged such that when the at least one linear drive element (9) applies a force to the tire (15), the largest force component of that force is oriented along the direction of the tangential force component (27), and At least one of the six linear drive elements (9) is arranged such that when the at least one linear drive element (9) applies a force to the tire (15), the largest force component of the force is oriented in the direction of the radial force component (29).
2. The tire testing stand (1) according to claim 1, wherein, When the tire (15) is rotatably mounted on the tire retainer (3) and the tire is in contact positioning, the at least one linear drive element (9) is arranged such that when the at least one linear drive element (9) applies a force to the tire (15), the force component with the largest force component is oriented along the direction of the lateral force component (25), and is arranged in a direction parallel to the direction of the radial force component (29).
3. The tire testing stand (1) according to any one of claims 1-2, wherein, Two of the six linear drive elements (9) are arranged such that when the two linear drive elements (9) apply force to the tire (15), the largest force component of these forces is oriented along the direction of the radial force component (29).
4. The tire testing stand (1) according to claim 3, wherein, When the tire (15) is rotatably mounted on the tire retainer (3), the tire (15) is positioned between the two linear drive elements (9) in contact positioning, the two linear drive elements being arranged such that when the two linear drive elements (9) apply forces to the tire (15), the largest force component of each of these forces is oriented in the direction of the radial force component (29).
5. The tire testing stand (1) according to claim 3, wherein, The two linear drive elements (9) are arranged such that when the two linear drive elements (9) apply force to the tire (15) respectively, the largest force component of each of these forces is oriented along the direction of the radial force component (29). In the initial configuration, the two linear drive elements (9) are staggered from each other in the direction of rotation axis.
6. The tire testing stand (1) according to any one of claims 1-2, wherein, At least one of the six linear drive elements (9) is arranged in the initial configuration such that the tire (15) can pivot about a horizontal and a vertical axis from its orientation in the initial configuration by adjusting the at least one linear drive element (9).
7. The tire testing stand (1) according to any one of claims 1-2, wherein, Two of the six linear drive elements (9) are arranged in the initial configuration such that the tire (15) can pivot about the horizontal and vertical axes from its orientation in the initial configuration by adjusting the two linear drive elements (9).
8. The tire testing stand (1) according to claim 6, wherein, The tire retainer (3) includes a first swing arm (39) mounted on the frame in a swingable manner, and a second end (13) of the first linear drive element (9) of the at least one linear drive element (9) is mounted on the first swing arm in a swingable manner. The first linear drive element is arranged in an initial configuration such that the tire (15) can be pivoted about a horizontal axis and a vertical axis from its orientation in the initial configuration by adjusting the linear drive element (9).
9. The tire testing stand (1) according to claim 6, wherein, The tire retainer (3) includes a second swing arm (41) mounted on the frame in a swingable manner, and a second end (13) of the second linear drive element (9) of the at least one linear drive element (9) is mounted on the second swing arm in a swingable manner. The second linear drive element is arranged such that the tire (15) can be pivoted about a horizontal axis and a vertical axis from its orientation in the initial configuration by adjusting the linear drive element (9).
10. The tire testing stand (1) according to any one of claims 1-2, wherein, The tire retainer (3) has a frame section (47) and a tire section (49) fastened to the frame, and the tire (15) can be rotatably mounted on the tire section. The frame section (47) and the tire section (49) are connected via a force measuring unit (51). When the tire test bench (1) is in the initial configuration, the force measuring unit (51) has at least one lateral force measuring element (53) extending in the direction of the lateral force component (25), at least one tangential force measuring element extending in the direction of the tangential force component (27), and at least one radial force measuring element extending in the direction of the radial force component (29).
11. The tire testing stand (1) according to any one of claims 1-2, wherein, At least one of the linear drive elements (9) of the hexapod assembly (5) is configured as a hydraulic cylinder.
12. The tire testing stand (1) according to any one of claims 1-2, wherein, At least one of the linear drive elements (9) of the hexapod assembly (5) is configured as an electromechanical linear drive device.
13. The tire testing stand (1) according to any one of claims 1-2, wherein, The tire test stand (1) has a tire drive unit that can drive the tire in the circumferential direction (Re) when the tire (15) is rotatably mounted on the tire retainer (3).
14. The tire testing stand (1) according to any one of claims 1-2, wherein, The tire test stand (1) has a tire braking unit that can brake the tire in the circumferential direction (Re) when the tire (15) is rotatably mounted on the tire retainer (3).