Tire station shaft assembly and tire rigidity testing machine

Abstract

The utility model discloses a tire station shaft assembly and a tire rigidity testing machine, a station shaft is provided with a special-shaped shaft section, and the section contour of the special-shaped shaft section is non-circular; a special-shaped mounting hole is formed in the first fixing seat, and the special-shaped mounting hole is matched with the special-shaped shaft section so as to lock the station shaft; the station shaft is rotationally connected with the second fixing base, and the station shaft can rotate after limiting of the first fixing base to the station shaft is relieved. The station shaft has the rotating state and the locking state, and the locking structure of the station shaft is simple and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire testing technical field especially relates to a tire station axle assembly and tire rigidity testing machine. BACKGROUND

[0002] In the tire rigidity testing machine, in order to meet the rigid test and strength test demand of tire, the station axle needs to realize the demand of fixed non-rotation and rotation. The existing station axle is locked by complex clamping structure, and the clamping structure needs to be configured with driving mechanism, and the structure is complex, and the clamping limiting of station axle is simply relied on, and under the condition of large loading force, the station axle has the risk of rotation.

[0003] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, so it can include prior art known by those skilled in the art. UTILITY MODEL CONTENT

[0004] In view of the problems pointed out in the background art, the utility model provides a tire station axle assembly and tire rigidity testing machine, and the station axle has a rotating state and a locking state. The locking structure of the station axle is simple and reliable.

[0005] To achieve the above-mentioned utility model purposes, the utility model adopts the following technical solutions:

[0006] In some embodiments of the application, a tire station axle assembly is provided, comprising:

[0007] The station axle is configured to install the tire to be tested, and the station axle has a special-shaped shaft section, and the cross-sectional profile of the special-shaped shaft section is non-circular;

[0008] The first fixed seat is formed with a special-shaped mounting hole, and the special-shaped mounting hole is matched with the special-shaped shaft section to lock the station axle;

[0009] The second fixed seat is rotatably connected with the station axle, and after the limiting of the first fixed seat on the station axle is released, the station axle can rotate.

[0010] In some embodiments of the application, the first fixed seat comprises a first sub-fixed seat and a second sub-fixed seat, the first sub-fixed seat and the second sub-fixed seat are detachably connected, and the special-shaped mounting hole is formed between the first sub-fixed seat and the second sub-fixed seat.

[0011] In some embodiments of the application, the second sub-fixed seat is detachably arranged above the first sub-fixed seat, the lower wall of the special-shaped mounting hole has a first arc-shaped wall, the outer peripheral wall of the special-shaped shaft section has a second arc-shaped wall, and the first arc-shaped wall and the second arc-shaped wall are matched.

[0012] In some embodiments of the present application, the first sub-fixing base is formed with a first mounting opening, and an inner wall of the first mounting opening has the first arc-shaped wall;

[0013] The second sub-fixing base is formed with a second mounting opening, and the second sub-fixing base is mounted to the first mounting opening, and an inner cavity of the second mounting opening and the first arc-shaped wall enclose the special-shaped mounting hole.

[0014] In some embodiments of the present application, the inner wall of the first mounting opening further has an inclined wall, and the second sub-fixing base cooperates with the inclined wall.

[0015] In some embodiments of the present application, the second sub-fixing base has an extension part, and the extension part is connected to the top of the first sub-fixing base through a connecting piece.

[0016] In some embodiments of the present application, the outer peripheral wall of the special-shaped shaft section includes a bevel section and an arc section.

[0017] In some embodiments of the present application, the outer peripheral wall of the special-shaped shaft section includes two arc sections arranged oppositely in up and down directions and two bevel sections arranged oppositely in left and right directions.

[0018] In some embodiments of the present application, a bearing is arranged on the work station shaft, and the bearing is connected with the second fixing base.

[0019] In some embodiments of the present application, a tire rigidity testing machine is further provided, which includes the tire work station shaft assembly as described above.

[0020] Compared with the prior art, the present application has the following advantages and positive effects:

[0021] In the tire work station shaft assembly disclosed in the present application, the work station shaft has a special-shaped shaft section, the first fixing base is formed with a special-shaped shaft hole, the special-shaped shaft section cooperates with the special-shaped shaft hole, and the work station shaft is rotationally connected with the second fixing base. Through the cooperation between the special-shaped shaft section and the special-shaped shaft hole, the work station shaft is locked. After the first fixing base is released from limiting the work station shaft, the work station shaft is rotated through the rotational connection between the work station shaft and the second fixing base. The work station shaft has a rotating state and a locking state, and the locking structure of the work station shaft is simple and reliable.

[0022] Other features and advantages of the present application will become more apparent after reading the specific embodiments of the present application in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0024] Figure 1 A structural diagram of a tire loading system according to some embodiments;

[0025] Figure 2 A structural diagram of a tire loading system according to some embodiments;

[0026] Figure 3 Another structural diagram of a tire loading system according to some embodiments;

[0027] Figure 4 Another structural diagram of a tire loading system according to some embodiments;

[0028] Figure 5 A sectional view of a tire loading system according to some embodiments;

[0029] Figure 6 A structural diagram of a station shaft assembly according to some embodiments;

[0030] Figure 7 Another structural diagram of a station shaft assembly according to some embodiments;

[0031] Figure 8 A sectional view of a station shaft assembly according to some embodiments;

[0032] Figure 9 A structural diagram of a station shaft according to some embodiments;

[0033] Figure 10 A structural diagram of a first fixing seat according to some embodiments.

[0034] Reference signs:

[0035] 10, tire loading system;

[0036] 20, station shaft assembly;

[0037] 30, rack; 31, second sliding part;

[0038] 40, tire;

[0039] 100, radial loading part; 110, radial loading table; 111, first sliding part; 120, through opening;

[0040] 200, torsion part; 210, torsion table; 211, fourth sliding part; 220, torsion driving part; 221, torsion driving cylinder; 222, crank; 223, connecting part; 2231, connecting shaft; 2232, rotating disc; 230, first sensor;

[0041] 300, longitudinal and transverse loading part; 310, longitudinal and transverse loading table; 311, third sliding part; 320, longitudinal and transverse driving cylinder; 330, second sensor;

[0042] 400, workpiece shaft; 410, special-shaped shaft segment; 411, shaft curved surface segment; 412, shaft inclined surface segment; 420, bearing;

[0043] 500, first fixed seat; 510, special-shaped mounting hole; 511, hole curved surface segment; 512, hole inclined surface segment; 520, first sub-fixed seat; 521, inclined wall; 530, second sub-fixed seat; 531, extension part;

[0044] 600, second fixed seat. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0047] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0048] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0049] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] The following disclosure provides many different embodiments or examples for implementing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can refer to the same reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0051] In some embodiments of the application, a tire rigidity testing machine is provided, referring to Figure 1 The tire rigidity testing machine can perform radial rigidity test, longitudinal rigidity test, transverse rigidity test, torsional rigidity test, static load test, strength test, etc. The outer diameter of the tire that can be tested can be up to 4200mm, which is a giant tire for engineering. The tire rigidity testing machine of the application is a horizontal structure.

[0052] The tire rigidity testing machine comprises a station shaft assembly 20. The station shaft assembly 20 comprises a station shaft 400. The station shaft 400 is horizontally arranged. The station shaft 400 is configured to mount the tire 40 to be tested. Figure 6 A structural view of the station shaft assembly 20 is shown in Figure 8 A sectional view of the station shaft assembly 20 is shown in Figure 9A structure diagram of the station shaft 400.

[0053] In some embodiments of the present application, with reference to Figure 9 The station shaft 400 is provided with a special-shaped shaft segment 410. The cross-sectional profile of the special-shaped shaft segment 410 is non-circular.

[0054] With reference to Figure 6 The station shaft assembly 20 further comprises two oppositely arranged first fixing seats 500. The first fixing seats 500 are arranged on the rack 30. Figure 10 A structure diagram of the first fixing seat 500. The first fixing seat 500 is formed with a special-shaped mounting hole 510. The special-shaped mounting hole 510 is adapted to the special-shaped shaft segment 410, so that the station shaft 400 is kept in a locked state. When the station shaft 400 is locked, the station shaft 400 cannot rotate, so as to facilitate the rigid test of the tire 40, such as radial rigidity test, longitudinal rigidity test, lateral rigidity test, torsional rigidity test, etc.

[0055] In some embodiments of the present application, the station shaft assembly 20 further comprises two oppositely arranged second fixing seats 600. The second fixing seats 600 are arranged on the rack 30. The station shaft 400 is rotationally connected with the second fixing seats 600. After the first fixing seat 500 releases the limiting of the station shaft 400, the station shaft 400 can rotate.

[0056] When the tire 40 is subjected to the puncture strength test, and the puncture position is changed, the first fixing seat 500 releases the limiting of the station shaft 400, the station shaft 400 rotates, and rotates to the position where the next puncture point is opposite to the puncture part. Then, the station shaft 400 stops rotating, and the first fixing seat 500 locks the station shaft 400 again.

[0057] The tire station shaft assembly disclosed in the present application comprises a station shaft 400, a first fixing seat 500 and a second fixing seat 600. The station shaft 400 has a special-shaped shaft segment 410. The first fixing seat 500 is formed with a special-shaped shaft hole 510. The special-shaped shaft segment 410 cooperates with the special-shaped shaft hole 510. The station shaft 400 is rotationally connected with the second fixing seat 600. Through the cooperation between the special-shaped shaft segment 410 and the special-shaped shaft hole 510, the station shaft 400 is locked. After the first fixing seat 500 releases the limiting of the station shaft 400, the station shaft 400 rotates through the rotational connection between the station shaft 400 and the second fixing seat 600. The station shaft 400 has a rotating state and a locked state. The locking structure of the station shaft 400 is simple and reliable.

[0058] In some embodiments of the present application, with reference to Figure 6 and Figure 8The bearing 420 is connected with the second fixing seat 600, so that the rotating connection between the work station shaft 400 and the second fixing seat 600 is realized.

[0059] In some embodiments of the present application, referring to Figure 9 The outer peripheral wall of the special-shaped shaft section 410 includes a bevel section and an arc section, which are denoted as a shaft bevel section 412 and a shaft arc section 411 respectively. Correspondingly, referring to Figure 10 The inner wall of the special-shaped mounting hole 510 also includes a bevel section and an arc section, which are denoted as a hole bevel section 512 and a hole arc section 511 respectively. The shaft bevel section 412 and the hole bevel section 512 correspondingly adapt to each other, and the shaft arc section 411 and the hole arc section 511 correspondingly adapt to each other. The bevel section is arranged to realize the limiting locking of the special-shaped mounting hole 510 to the work station shaft 400.

[0060] In some embodiments of the present application, the outer peripheral wall of the special-shaped shaft section 410 includes two shaft arc sections 411 arranged oppositely in up and down directions and two shaft bevel sections 412 arranged oppositely in left and right directions. Correspondingly, the inner wall of the special-shaped mounting hole 510 includes two hole arc sections 511 arranged oppositely in up and down directions and two hole bevel sections 512 arranged oppositely in left and right directions.

[0061] In some embodiments of the present application, referring to Figure 10 The first fixing seat 500 includes a first sub-fixing seat 520 and a second sub-fixing seat 530, and the first sub-fixing seat 520 and the second sub-fixing seat 530 are detachably connected. The special-shaped mounting hole 510 is formed between the first sub-fixing seat 520 and the second sub-fixing seat 530.

[0062] When it is needed to release the locking of the work station shaft 400 by the first fixing seat 500, one of the first sub-fixing seat 520 and the second sub-fixing seat 530 is detached, and at this time, the shaft bevel section 412 and the hole bevel section 512 are disengaged.

[0063] For example, the second sub-fixing seat 530 is detachably arranged above the first sub-fixing seat 520. When it is needed to release the locking of the work station shaft 400 by the first fixing seat 500, the second sub-fixing seat 530 is detached, and referring to Figure 7 .

[0064] In some embodiments of the present application, referring to Figure 10 The lower inner wall of the special-shaped mounting hole 510 has a first arc wall. Referring to Figure 9 The outer peripheral wall of the special-shaped shaft section 410 has a second arc wall, and the first arc wall and the second arc wall adapt to each other. Specifically, the hole arc section 511 located at the lower side is the first arc wall, and the shaft arc section 411 located at the lower side is the second arc wall.

[0065] Thus, when the work station shaft 400 needs to rotate, the second sub fixing seat 530 is disassembled to release the locking and limiting of the work station shaft 400. At this time, the first arc-shaped wall plays a supporting role for the work station shaft 400 and does not interfere with the rotation of the work station shaft 400.

[0066] In some embodiments of the present application, with reference to Figure 10 , the first sub fixing seat 520 is formed with a first mounting opening, and the inner wall of the first mounting opening has a first arc-shaped wall.

[0067] The second sub fixing seat 530 is formed with a second mounting opening, and the second sub fixing seat 530 is mounted to the first mounting opening. The inner cavity of the second mounting opening and the first arc-shaped wall enclose a special-shaped mounting hole 510.

[0068] In some embodiments of the present application, the inner wall of the first mounting opening further has an inclined wall 521, and the second sub fixing seat 530 cooperates with the inclined wall 521 to improve the assembly reliability between the first sub fixing seat 520 and the second sub fixing seat 530.

[0069] In some embodiments of the present application, the second sub fixing seat 530 has an extension 531, and the extension 531 is connected to the top of the first sub fixing seat 520 through a connecting member (for example, a bolt), further improving the assembly reliability between the first sub fixing seat 520 and the second sub fixing seat 530.

[0070] In some embodiments of the present application, the tire rigidity testing machine further comprises a tire loading system 10. The tire loading system 10 is arranged beside the work station shaft 400. In other words, the work station shaft assembly 20 and the tire loading system 10 are arranged in sequence along the horizontal direction. Figure 2 and Figure 3 is a structural view of the tire loading system 10 from different angles, Figure 5 is a sectional view of the tire loading system 10.

[0071] The tire rigidity testing machine further comprises a machine frame 30, and the work station shaft assembly 20 and the tire loading system 10 are arranged on the machine frame 30.

[0072] The tire loading system 10 comprises a radial loading part 100. The radial loading part 100 is configured to move towards or away from the tire 40. The radial loading part 100 is in sliding connection with the machine frame 30, and the radial loading part 100 moves horizontally along the machine frame 30.

[0073] The tire loading system 10 further comprises a torsion part 200. The torsion part 200 is arranged on the radial loading part 100.

[0074] The tire loading system 10 also includes a longitudinal and transverse loading section 300. The longitudinal and transverse loading section 300 is connected to a torsion section 200. The torsion section 200 is configured to drive the longitudinal and transverse loading section 300 to rotate. The torsion section 200 drives the longitudinal and transverse loading section 300 to rotate in a vertical plane.

[0075] The longitudinal and transverse loading section 300 has a first rotational position and a second rotational position. Figure 2 The longitudinal and transverse loading section 300 is in the first rotational position. Figure 4 The longitudinal and transverse loading section 300 is in the second rotation position.

[0076] In one specific embodiment, in the first rotation position, the longitudinal and transverse loading parts 300 are in a vertical state; in the second rotation position, the longitudinal and transverse loading parts 300 are in a horizontal state. The torsion part 200 drives the longitudinal and transverse loading parts 300 to switch between the first rotation position and the second rotation position.

[0077] Reference Figure 2 When the longitudinal and transverse loading section 300 is in the first rotational position, the longitudinal and transverse loading section 300 is configured to move along the first direction to perform a longitudinal stiffness test on the tire 40.

[0078] In one specific embodiment, the first direction is the vertical direction, and when the longitudinal and transverse loading part 300 is in the first rotation position, the longitudinal and transverse loading part 300 is configured to move in the vertical direction to perform a longitudinal rigidity test on the tire 40.

[0079] In other words, when tire 40 undergoes a longitudinal stiffness test, the longitudinal and transverse loading portions 300 are in a state as follows: Figure 2 In the first rotational position shown, the radial loading part 100 moves toward the tire 40, causing the longitudinal and transverse loading parts 300 to move synchronously toward the tire 40 until they come into contact with the tire 40. The longitudinal and transverse loading parts 300 move in the vertical direction to perform a longitudinal rigidity test on the tire 40.

[0080] Reference Figure 4 When the longitudinal and lateral loading section 300 is in the second rotation position, the longitudinal and lateral loading section 300 is configured to move in the second direction to perform a lateral stiffness test on the tire 40.

[0081] In one specific embodiment, the second direction is the horizontal direction. When the longitudinal and transverse loading part 300 is in the second rotation position, the longitudinal and transverse loading part 300 is configured to move in the horizontal direction to perform a transverse stiffness test on the tire 40.

[0082] In other words, when tire 40 undergoes a lateral stiffness test, the longitudinal and lateral loading portions 300 are in a state such as Figure 4In the second rotation position shown, the radial loading part 100 moves towards the tire 40, and the longitudinal and lateral loading part 300 is driven to move towards the tire 40 synchronously, until the tire 40 is abutted, and the longitudinal and lateral loading part 300 moves horizontally to perform a lateral rigidity test on the tire 40.

[0083] In the radial rigidity test on the tire 40, the longitudinal and lateral loading part 300 does not move vertically or horizontally, the radial loading part 100 moves towards the tire 40, and the longitudinal and lateral loading part 300 is driven to move towards the tire 40 synchronously, until the tire 40 is abutted, and the radial loading part 100 continues to press to perform a radial rigidity test on the tire 40.

[0084] The tire loading system 10 includes the radial loading part 100, the torsion part 200, and the longitudinal and lateral loading part 300. The torsion part 200 is arranged on the radial loading part 100, and drives the longitudinal and lateral loading part 300 to rotate in the vertical plane to change the position state of the longitudinal and lateral loading part 300, and then combines the vertical movement and the horizontal movement of the longitudinal and lateral loading part 300 to perform a radial rigidity test, a longitudinal rigidity test, or a lateral rigidity test on the tire 40. The longitudinal loading and the lateral loading are driven by the same loading mechanism, the overall structure of the tire loading system 10 is compact, and the components cooperate with each other to meet the different test requirements of the tire 40.

[0085] In some embodiments of the present application, the workbench shaft 400 has a locking state. When performing a rigidity test on the tire 40, such as a radial rigidity test, a longitudinal rigidity test, a lateral rigidity test, or a torsion rigidity test, the workbench shaft 400 is in the locking state, and the workbench shaft 400 does not rotate.

[0086] The workbench shaft 400 also has a rotating state. When performing a puncture strength test on the tire 40, the workbench shaft 400 is in the rotating state, and the workbench shaft 400 can rotate, and the workbench shaft 400 drives the tire 40 mounted thereon to rotate synchronously.

[0087] The tire loading system 10 also includes a puncture part (not shown). The puncture part is detachably connected with the longitudinal and lateral loading part 300. For example, the puncture part is a puncture rod structure, and the puncture part is connected with the longitudinal and lateral loading part 300 by clamping, bolts, or the like.

[0088] The tire rigidity tester can also perform a puncture strength test on the tire 40. When performing the puncture strength test on the tire 40, the puncture part is mounted on the longitudinal and lateral loading part 300. When the puncture strength test is not needed on the tire 40, the puncture part is removed from the longitudinal and lateral loading part 300.

[0089] When the puncture strength test is performed on the tire 40, the tire 40 is provided with a plurality of puncture test points, for example, five, along the circumferential direction thereof, the puncture part is installed on the longitudinal and transverse loading part 300, the work station shaft 400 is first in the locking state, the radial loading part 100 moves towards the tire 40, driving the longitudinal and transverse loading part 300 to move towards the tire 40 synchronously, the radial loading part 100 continues to press, and the puncture part punctures the first puncture test point of the tire 40 to perform the puncture strength test on the tire 40. After the first puncture test point is tested, the radial loading part 100 moves away from the tire 40, the puncture part is separated from the tire 40, then the work station shaft 400 is switched to the rotating state, the work station shaft 400 drives the tire 40 to rotate, so that the tire 40 is rotated to the second puncture test point opposite to the puncture part, the work station shaft 400 is switched to the locking state again, then the radial loading part 100 moves towards the tire 40 again, so that the puncture part punctures the second puncture test point, and the puncture strength test of the remaining puncture test points is completed in this way.

[0090] The work station shaft 400 is provided with the locking state and the rotating state, so as to meet the use requirement of the tire 40 puncture strength test.

[0091] In some embodiments of the present application, the tire rigidity tester can also perform the torsional stiffness test on the tire 40. When the tire rigidity tester performs the torsional stiffness test on the tire 40, the torsion part 200 drives the longitudinal and transverse loading part 300 to reciprocate within a set angle range.

[0092] Specifically, when the tire 40 performs the torsional stiffness test, the radial loading part 100 moves towards the tire 40, driving the longitudinal and transverse loading part 300 to move towards the tire 40 synchronously, until the longitudinal and transverse loading part 300 abuts against the tire 40, the torsion part 200 drives the longitudinal and transverse loading part 300 to reciprocate within a set angle range, so as to perform the torsional stiffness test on the tire 40.

[0093] Further, the initial position of the longitudinal and transverse loading part 300 is set as the vertical state, that is, the state shown in the figure, when the torsional stiffness test is performed, the torsion part 200 drives the longitudinal and transverse loading part 300 to rotate by a certain angle first, for example, 45°, then the torsion part 200 drives the longitudinal and transverse loading part 300 to reciprocate within a set angle range, for example, within an angle range of plus or minus 15°. Figure 2

[0094] In some embodiments of the present application, the radial loading part 100 comprises a radial loading table 110 and a radial loading cylinder (not shown). The radial loading cylinder drives the radial loading table 110 to move towards or away from the tire 40. Figure 1 For example, the radial loading cylinder is arranged on the right side of the radial loading table 110. ​

[0095] The radial loading platform 110 is in sliding connection with the rack 30. For example, the bottom of the radial loading platform 110 is provided with a first sliding part 111, and the rack 30 is correspondingly provided with a second sliding part 31, and the first sliding part 111 is in sliding connection with the second sliding part 31. For example, the first sliding part 111 is a sliding block, and the second sliding part 31 is a sliding rail.

[0096] In some embodiments of the present application, the torsion part 200 is arranged on the radial loading platform 110.

[0097] In some embodiments of the present application, the torsion part 200 includes a torsion platform 210 and a torsion driving part 220, and the torsion driving part 220 is configured to drive the torsion platform 210 to rotate. The torsion driving part 220 is arranged on the radial loading platform 110, and the torsion platform 210 is fixedly connected with the longitudinal and transverse loading part 300. The torsion driving part 220 drives the torsion platform 210 to rotate, and the torsion platform 210 drives the longitudinal and transverse loading part 300 to rotate synchronously.

[0098] In some embodiments of the present application, referring to Figure 3 and Figure 5 , the torsion driving part 220 includes a torsion driving cylinder 221, the power output end of the torsion driving cylinder 221 is provided with a crank 222, the crank 222 is provided with a connecting part 223, and the torsion platform 210 is fixedly connected with the connecting part 223. The torsion driving cylinder 221 is fixedly arranged on the radial loading platform 110. The connecting part 223 is in rotary connection with the radial loading platform 110.

[0099] The torsion driving cylinder 221 drives the crank 222 to move, the crank 222 drives the connecting part 223 to rotate, the connecting part 223 drives the torsion platform 210 to rotate synchronously, and further drives the longitudinal and transverse loading part 300 to rotate. Figure 3 The dashed line in represents different position states of the crank 222. The force is transmitted through the crank 222, and the structure is compact and reliable.

[0100] In some embodiments of the present application, referring to Figure 5 , the connecting part 223 includes a connecting shaft 2231 and a rotating disc 2232, one end of the connecting shaft 2231 is fixedly connected with the crank 222, and the other opposite end is fixedly connected with the rotating disc 2232. The radial loading platform 110 is provided with a through port 120, and the connecting shaft 2231 and the rotating disc 2232 pass through the through port 120, and the rotating disc 2232 is in rotary connection with the radial loading platform 110.

[0101] The rotary connection mode between the rotating disc 2232 and the radial loading platform 110 is not limited in the embodiment. For example, the rotary connection can be achieved through an annular protrusion and a groove.

[0102] The connecting portion 223 is arranged inside the radial loading table 110, and the overall structure is more compact, reducing the volume. The torsion driving cylinder 221 and the crank 222 are located on one side (for example, the rear side) of the connecting portion 223, and the torsion table 210 is located on the other side (for example, the front side) of the connecting portion 223, which facilitates the connection of the torsion table 210 and the longitudinal and transverse loading portion 300 while realizing force transmission.

[0103] In some embodiments of the present application, the longitudinal and transverse loading portion 300 includes a longitudinal and transverse loading table 310 and a longitudinal and transverse driving cylinder 320. The longitudinal and transverse driving cylinder 320 drives the longitudinal and transverse loading table 310 to move. The longitudinal and transverse driving cylinder 320 is fixedly arranged on the torsion table 210, and the longitudinal and transverse loading table 310 is slidingly arranged on the torsion table 210.

[0104] Specifically, the cylinder body of the longitudinal and transverse driving cylinder 320 is fixedly connected with the torsion table 210, and the power output end of the longitudinal and transverse driving cylinder 320 is fixedly connected with the longitudinal and transverse loading table 310.

[0105] The sliding connection structure between the torsion table 210 and the longitudinal and transverse loading table 310 is not specifically limited in the present embodiment. For example, a third sliding portion 311 is arranged on the longitudinal and transverse loading table 310, and a fourth sliding portion 211 is correspondingly arranged on the torsion table 210. The third sliding portion 311 is slidingly connected with the fourth sliding portion 211. For example, the third sliding portion 311 is a sliding block, and the fourth sliding portion 211 is a sliding rail.

[0106] When the torsion table 210 rotates, it drives the longitudinal and transverse loading table 310 to rotate synchronously, so as to switch the longitudinal and transverse loading table 310 between the first rotation position and the second rotation position, and to rotate the longitudinal and transverse loading table 310 within a set angle range when performing a torsion rigidity test.

[0107] When performing a longitudinal rigidity test, the longitudinal and transverse loading table 310 is in a vertical state as shown in FIG. 4, and the longitudinal and transverse driving cylinder 320 drives the longitudinal and transverse loading table 310 to move up and down. Figure 2

[0108] When performing a transverse rigidity test, the longitudinal and transverse loading table 310 is in a horizontal state as shown in FIG. 5, and the longitudinal and transverse driving cylinder 320 drives the longitudinal and transverse loading table 310 to move horizontally. Figure 4

[0109] In some embodiments of the present application, the puncture portion is detachably connected with the longitudinal and transverse loading portion 300, specifically, the puncture portion is detachably connected with the longitudinal and transverse loading table 310.

[0110] In some embodiments of the present application, the longitudinal and transverse driving cylinders 320 are arranged on opposite sides of the longitudinal and transverse loading table 310, which improves the movement stability of the longitudinal and transverse loading table 310.

[0111] ​​In some embodiments of the present application, the twisting part 200 further comprises a first sensor 230 configured to detect the pushing force of the twisting driving part 220. Figure 3 Specifically, referring to Fig. 2, the first sensor 230 is arranged between the twisting driving cylinder 221 and the crank 222 and configured to detect the pushing force of the twisting driving cylinder 221 on the crank 222. The loading torque is calculated according to the pushing force.

[0112] In some embodiments of the present application, referring to Fig. 3, Figure 2 The longitudinal and transverse driving cylinders 320 are provided with a second sensor 330 configured to detect the longitudinal or transverse loading force.

[0113] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0114] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tire workstation shaft assembly, characterized in that, Including: A workstation shaft, configured to mount a tire to be tested, has an irregularly shaped shaft segment with a non-circular cross-sectional profile. The first fixed seat has an irregularly shaped mounting hole, which is adapted to the irregularly shaped shaft segment to lock the workstation shaft. The second fixed seat is rotatably connected to the workstation shaft. After the first fixed seat releases the restriction on the workstation shaft, the workstation shaft can rotate.

2. The tire workstation shaft assembly according to claim 1, characterized in that, The first fixing base includes a first sub-fixing base and a second sub-fixing base, which are detachably connected, and the irregular mounting hole is formed between the first sub-fixing base and the second sub-fixing base.

3. The tire workstation shaft assembly according to claim 2, characterized in that, The second sub-fixed seat is detachably disposed above the first sub-fixed seat. The lower inner wall of the irregular mounting hole has a first arc-shaped wall, and the outer peripheral wall of the irregular shaft segment has a second arc-shaped wall. The first arc-shaped wall and the second arc-shaped wall are adapted to each other.

4. The tire workstation shaft assembly according to claim 3, characterized in that, The first sub-fixed seat has a first mounting opening, and the inner wall of the first mounting opening has the first arc-shaped wall; The second sub-fixed seat has a second mounting port, and the second sub-fixed seat is installed to the first mounting port. The inner cavity of the second mounting port and the first arc-shaped wall form the irregular mounting hole.

5. The tire workstation shaft assembly according to claim 4, characterized in that, The inner wall of the first mounting port also has an inclined wall, and the second sub-fixed seat cooperates with the inclined wall.

6. The tire workstation shaft assembly according to claim 3, characterized in that, The second sub-fixed base has an extension that is connected to the top of the first sub-fixed base via a connector.

7. The tire workstation shaft assembly according to any one of claims 1 to 6, characterized in that, The outer peripheral wall of the irregular shaft segment includes a sloped section and an arc-shaped section.

8. The tire workstation shaft assembly according to claim 7, characterized in that, The outer peripheral wall of the irregular shaft segment includes two arc-shaped segments arranged vertically opposite each other and two inclined segments arranged horizontally opposite each other.

9. The tire workstation shaft assembly according to any one of claims 1 to 6, characterized in that, A bearing is provided on the workstation shaft, and the bearing is connected to the second fixed seat.

10. A tire rigidity testing machine, characterized in that, It includes the tire workstation shaft assembly as described in any one of claims 1 to 9.

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