Pit impact device for automobile tire test

Abstract

A pit impact device for automobile tire testing relates to the technical field of tire testing and comprises a concrete pavement, a first pit mechanism and a second pit mechanism, the first pit mechanism and the second pit mechanism are arranged on two sides of the middle of the concrete pavement, and the first pit mechanism and the second pit mechanism are identical in structure and are respectively composed of a pit body and an assembly module arranged in the pit body. By arranging the first pit mechanism and the second pit mechanism, tires on the two sides of an automobile can simultaneously enter the pit body or independently enter the pit body to be subjected to a simulation test, pit bodies of various shapes can be simulated by arranging the splicing module, the pit impact is closer to pit impact of actual road conditions, and therefore the test efficiency is improved. And the tire performance during pit collision in actual use of the automobile can be detected more conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of tire testing, in particular to a pit impact device for automobile tire testing. Background Art

[0002] Automobile tires are one of the important parts of automobiles. They are in direct contact with the road surface and work together with the automobile suspension to mitigate the impact of the automobile when driving, ensuring good riding comfort and driving smoothness, ensuring good adhesion between the wheels and the road surface, and improving the traction, braking and passability of the automobile. Automobile tires also bear the weight of the automobile. The important role played by tires in automobiles is increasingly valued by people, so tires need to be tested. At present, tires are generally tested separately, which can only test the basic quality of tires, and it is impossible to observe the actual use of tires during the driving process of the car.

[0003] To this end, the utility model with application number CN202121459127.1 discloses a pit impact device for automobile tire testing, including a concrete pavement; a test pit is arranged on the concrete pavement; two symmetrically distributed fixed plates are arranged on the inner wall of one side of the test pit; an adjustment box is arranged between the two fixed plates; a concrete base plate is arranged at the bottom of the test pit; a steel plate is arranged on the top of the concrete base plate; an angle iron is arranged on the inner wall of the test pit away from the adjustment box, one end of the angle iron is connected and fixed to the concrete pavement, and the other end is connected and fixed to the inner wall of the test pit. The utility model arranges a test pit and an adjustment box on the concrete pavement, and the car drives into the test pit and drives out from the other side of the test pit. The changes of the automobile tires in the actual driving process can be intuitively understood, and the pit impact test of the automobile tires can be realized, which is convenient for the staff to perform tire testing.

[0004] However, in reality, most potholes on the road are irregular in shape, and when a car is driving on the road, sometimes one side of the tire enters the pot, and sometimes both sides of the tire enter the pot. When one side of the tire enters the pot, the car will tilt at a certain angle, and the impact of the pot on the tire is obviously different from that when both sides of the tire enter the pot. For the above various actual usage situations, this document cannot perform simulation tests. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0005] The present invention provides a pit impact device for automobile tire testing, the purpose of which is to solve the problems existing in the prior art: in reality, most of the pits on the road are irregular in shape, and when the car is driving on the road, sometimes the tire on one side enters the pit, and sometimes the tires on both sides enter the pit. When the tire on one side enters the pit, the car will tilt at a certain angle, and the impact of the pit on the tire is obviously different from that when the tires on both sides enter the pit. For the above various actual usage situations, the document cannot perform simulation tests.

[0006] To achieve the above purpose, the technical solution of this novel invention is:

[0007] A pit impact device for testing automobile tires comprises a concrete pavement, a first pit mechanism and a second pit mechanism arranged on both sides of the middle of the concrete pavement, wherein the first pit mechanism and the second pit mechanism have the same structure and are both composed of a pit body and an assembly module arranged in the pit body.

[0008] Preferably, a concrete embedded block is provided below the pit body, a groove structure is provided on the top of the concrete embedded block, and the side wall of the groove structure extends upward to the upper end of the concrete pavement and constitutes the pit body.

[0009] Preferably, the assembly module includes a plurality of steel casings arranged in a matrix and arranged longitudinally within the pit body, the steel casing having a rectangular cross-section, the lower portion of the steel casing being pre-embedded in a concrete pre-embedded block at the bottom of the groove structure, the outer walls of the steel casing being tightly abutted against each other, a cubic filling block being cast in the steel casing, a sleeve being pre-embedded at the axis of the filling block, the sleeve being provided with an internal thread, a first mounting block having the same cross-sectional size as the steel casing being provided at the top end, the first mounting block being fixedly connected to the filling block by a screw, and the top end of the first mounting block being flush with the concrete pavement.

[0010] Preferably, a through hole is provided at the axis of the first mounting block, the screw rod passes through the through hole and is threadedly connected with the sleeve, and a hexagonal screw groove is provided at the top end of the screw rod.

[0011] Preferably, a second mounting block is also arranged on the top of the steel casing located at the edge of the pit body, and the structural difference between the second mounting block and the first mounting block is that the top of the second mounting block is an inclined surface, the lower end of the inclined surface faces the inner side of the pit body, and the high end faces the side wall of the pit body.

[0012] Preferably, the second mounting block is provided with several models according to different inclinations of the inclined surface.

[0013] Preferably, the length of the screw is greater than the height of the first mounting block or the second mounting block, and less than the height of the sleeve.

[0014] Preferably, the first mounting block and the second mounting block are made of metal material or concrete material.

[0015] Preferably, the width and length of the dimple body are both larger than the outer diameter of the automobile tire to be tested, and the distance between the first dimple mechanism and the second dimple mechanism matches the distance between the tires on both sides of the automobile.

[0016] The novel pit impact device for automobile tire testing has the following beneficial effects:

[0017] The present invention can simulate the test of both tires on the vehicle entering the pit body simultaneously or separately by setting the first pit mechanism and can simulate the pit bodies of various shapes by setting the assembly modules, which is closer to the pit impact of actual road conditions. Therefore, it is more convenient to detect the tire performance when the car is actually used in a pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 , a top view of the layout of the new model;

[0019] Figure 2 , a partial cross-sectional view of the novel device along the AA direction;

[0020] Figure 3 , a top view of an implementation method of the novel automobile tire pit impact test;

[0021] Figure 4 , a cross-sectional view of the present invention in which the first mounting block and the second mounting block are used to fill the pit body;

[0022] 1: concrete pavement, 2: first pit mechanism, 3: second pit mechanism, 4: steel casing, 5: filling block, 6: sleeve, 7: concrete embedded block, 8: groove structure, 9: the first mounting block fills the pit body on one side, 10: the pit body on the other side is not filled, 11: first mounting block, 12: through hole, 13: screw, 14: hexagonal screw groove, 15: second mounting block, 16: inclined surface, 17: irregularly shaped pit. DETAILED DESCRIPTION

[0023] The following is a detailed description of the implementation method of the present invention in a step-by-step manner. The description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only used to describe the present invention and simplify the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0025] The following embodiments may be understood as explaining part of the structure of the present invention individually, or may be understood as a combination of multiple embodiments to illustrate the structure of the present invention in a wider range.

[0026] Example 1

[0027] A pit impact device for testing automobile tires, such as Figure 1-4 As shown, it includes a concrete pavement 1, a first pit mechanism 2 and a second pit mechanism 3 arranged on both sides of the middle of the concrete pavement 1, and the first pit mechanism 2 and the second pit mechanism 3 have the same structure, both of which are composed of a pit body and an assembly module arranged in the pit body.

[0028] In this embodiment, by setting the first pit mechanism and the second pit mechanism, a simulation test can be performed on the tires on both sides of the car entering the pit body simultaneously or separately. By setting the assembly module, pit bodies of various shapes can be simulated, which is closer to the pit impact of actual road conditions. Therefore, the tire performance in actual use of the car can be better detected.

[0029] Example 2

[0030] like Figure 2 As shown, a concrete embedded block 7 is provided below the pit body, a groove structure 8 is provided on the top of the concrete embedded block 7, and the side wall of the groove structure 8 extends upward to the upper end of the concrete pavement 1 and constitutes the pit body.

[0031] In this embodiment, the embedded concrete blocks 7 are provided to ensure the firmness of the assembled module structure and avoid loosening during the test process.

[0032] Example 3

[0033] like Figure 1 , 2As shown in Figure 4, the assembly module includes a plurality of steel casings 4 arranged in a matrix in the pit body and arranged longitudinally. The cross-section of the steel casing 4 is rectangular. The lower part of the steel casing 4 is embedded in the concrete embedded block 7 at the bottom of the groove structure 8, so as to ensure the structural stability of the steel casing 4. The outer walls of the steel casing 4 are tightly abutted against each other. A cubic filling block 5 is cast in the steel casing 4. A sleeve 6 is embedded at the axis of the filling block 5. The sleeve 6 is provided with an internal thread. The top of the steel casing 4 is provided with a first mounting block 11 consistent with the cross-sectional size of the steel casing 4. The first mounting block 11 is fixedly connected to the filling block 5 by a screw 13. The top of the first mounting block 11 is flush with the concrete pavement 1.

[0034] This embodiment discloses a first mounting block 11, which is mounted on the top of the filling block to form a detachable module. By adjusting the number and position of the first mounting blocks 11, various regular or irregular shaped pits 17 can be formed. Figure 3 As shown, when the first mounting block fills the pit body on one side 9, and the pit body on the other side is not filled 10, the pit impact test of the tire on one side of the vehicle can be carried out.

[0035] Example 4

[0036] like Figure 2 , 3 As shown in 4, a through hole 12 is provided at the axis of the first mounting block 11, and the screw rod 13 passes through the through hole 12 and is screwed to the sleeve 6. A hexagonal screw groove 14 is provided at the top of the screw rod 13 to facilitate screwing the screw rod 13 with a tool.

[0037] Example 5

[0038] like Figure 4 As shown, a second mounting block 15 is also arranged on the top of the steel casing 4 located at the edge of the pit body. The structural difference between the second mounting block 15 and the first mounting block 11 is that the top of the second mounting block 15 is an inclined surface 16, and the lower end of the inclined surface 16 faces the inner side of the pit body, and the high end faces the side wall side of the pit body.

[0039] like Figure 4 As shown, the second mounting block 15 has several models according to the different inclinations of the inclined surface 16 .

[0040] In this embodiment, by providing the second mounting block, slopes of various inclinations can be simulated at the edge of the pit body, so that the tire pit impact test is closer to the actual road conditions.

[0041] Example 6

[0042] like Figure 2 , 4As shown, the length of the screw 13 is greater than the height of the first mounting block 11 or the second mounting block 15 (for convenience of connection with the sleeve), and is less than the height of the sleeve 6. When the first mounting block 11 and the second mounting block 15 are not set on the top of the steel casing 4, the screw 13 can be screwed into the sleeve so that the top of the screw 13 is flush with the top of the sleeve 6, which plays a filling role to better simulate the road conditions in the pit.

[0043] Example 7

[0044] like Figure 1-4 As shown, the first mounting block 11 and the second mounting block 15 are made of metal material or concrete material.

[0045] like Figure 1 , 3 As shown, the width and length of the dimple body are both larger than the outer diameter of the automobile tire to be tested, and the distance between the first dimple mechanism and the second dimple mechanism matches the tire spacing on both sides of the automobile.

[0046] When this new type is used, Figure 3 As shown, the pit body on one side can be filled with the first mounting block, and the pit body on the other side can remove part of the first mounting block to simulate the impact of the pit on one side of the car tire. At the same time, the number and position of the first mounting blocks removed can be selected to simulate the impact of irregular pits. The pit bodies on both sides can also be formed by removing the first mounting blocks, so as to perform pit impact tests on both sides of the car tires at the same time. Figure 4 It is understandable that the present invention can also select a second mounting block to be mounted on the outer edge of the pit body to simulate a road condition where a slope is provided at the edge of the pit body. By selecting a second mounting block of different models, the slope of the slope can be changed, making the simulation test closer to the actual road condition.

Claims

1. A pit impact device for automobile tire testing, characterized by: It includes a concrete pavement, a first pit mechanism and a second pit mechanism arranged on both sides of the middle of the concrete pavement. The first pit mechanism and the second pit mechanism have the same structure, and are both composed of a pit body and an assembly module arranged in the pit body.

2. A pit impact device for automobile tire testing as claimed in claim 1, characterized in that: A concrete embedded block is arranged below the pit body, a groove structure is arranged on the top of the concrete embedded block, and the side wall of the groove structure extends upward to the upper end of the concrete pavement and constitutes the pit body.

3. A pit impact device for automobile tire testing as claimed in claim 2, characterized in that: The assembly module includes a plurality of steel casings arranged in a matrix and arranged longitudinally in the pit body. The cross-section of the steel casing is rectangular. The lower part of the steel casing is embedded in the concrete embedded block at the bottom of the groove structure. The outer walls of the steel casing are tightly abutted against each other. A cubic filling block is cast in the steel casing. A sleeve is embedded at the axis of the filling block. The sleeve is provided with an internal thread. A first mounting block consistent with the cross-sectional size of the steel casing is provided at the top of the steel casing. The first mounting block is fixedly connected to the filling block by a screw, and the top of the first mounting block is flush with the concrete pavement.

4. A pit impact device for automobile tire testing as claimed in claim 3, characterized in that: A through hole is arranged at the axis of the first mounting block, the screw rod passes through the through hole and is threadedly connected with the sleeve, and a hexagonal screw groove is arranged at the top end of the screw rod.

5. A pit impact device for automobile tire testing as claimed in claim 4, characterized in that: A second mounting block is also arranged on the top of the steel casing located at the edge of the pit body. The structural difference between the second mounting block and the first mounting block is that the top of the second mounting block is an inclined surface, the lower end of the inclined surface faces the inner side of the pit body, and the high end faces the side wall of the pit body.

6. A pit impact device for automobile tire testing as claimed in claim 5, characterized in that: The second mounting block is provided with several models according to different inclinations of the inclined surface.

7. A pit impact device for automobile tire testing as claimed in claim 6, characterized in that: The length of the screw rod is greater than the height of the first mounting block or the second mounting block, and less than the height of the sleeve.

8. A pit impact device for automobile tire testing as claimed in claim 7, characterized in that: The first mounting block and the second mounting block are made of metal material or concrete material.

9. A pit impact device for automobile tire testing as claimed in claim 8, characterized in that: The width and length of the pit body are both greater than the outer diameter of the automobile tire to be tested, and the distance between the first pit mechanism and the second pit mechanism matches the tire spacing on both sides of the automobile.

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