A detection device for compression resistance of automobile axle

Abstract

The application relates to the technical field of axle compression resistance performance detection, and discloses a detection equipment for the compression resistance performance of an automobile axle, which comprises a detection platform, one side of the top of the detection platform is provided with a simulation driving mechanism, the other side of the top of the detection platform is provided with a simulation load mechanism, the simulation driving mechanism comprises a supporting ring, the bottom of the supporting ring is provided with a plurality of groups of buffer supporting components, and the buffer supporting components are limitingly supported on the top of the detection platform; the detection equipment can realize stable evaluation of the compression resistance performance of the automobile axle under different load conditions by configuring adjustable counterweights in the static stage; in the dynamic simulation stage, a rotatable boss assembly is used to push the tires to form ups and downs, the unbalanced stress state of the automobile axle under the bumpy road condition is truly reproduced, so that the changes of stress and shear strength can be shown, and the limitation of single working condition in the traditional detection can be effectively overcome by integrating the static load and the dynamic simulation test.

Description

Technical Field

[0001] This invention relates to the field of axle compressive strength testing technology, and more specifically, to a testing device for the compressive strength of automotive axles. Background Technology

[0002] In the automotive manufacturing industry, the axle is a key load-bearing component, and its compressive strength is directly related to the safety and durability of the entire vehicle. Currently, the industry generally uses static load testing to evaluate the mechanical properties of axles, that is, to collect its stress and shear strength data under fixed pressure. Although this method can reflect the state of the axle under stable working conditions, in actual driving, the axle often faces complex and changing road conditions and dynamic loads, especially the instantaneous unbalanced forces caused by bumpy road sections.

[0003] However, most existing testing methods are difficult to simulate such dynamic working conditions; the testing process is often limited to a single static environment and cannot reproduce the changes in alternating stress and shear force at both ends of the axle due to undulations when the vehicle is driving on a bumpy road; this limitation leads to deviations between the test data and the real working conditions, making it difficult to comprehensively evaluate the compressive strength and structural reliability of the axle under comprehensive load conditions.

[0004] Therefore, effectively simulating the stress state of vehicle axles under dynamic loads, especially in bumpy environments, without leaving the laboratory conditions has become the key to improving the accuracy and comprehensiveness of testing. There is an urgent need for a testing solution that can integrate static pressure testing and dynamic road condition simulation to more realistically reflect the performance of vehicle axles in actual use and provide more sufficient data support for design and improvement. Summary of the Invention

[0005] To overcome the above-mentioned technical problems, the present invention proposes a testing device for the compressive strength of automobile axles.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A testing device for the compressive strength of automotive axles includes a testing platform, a simulated drive mechanism is provided on one side of the top of the testing platform, and a simulated load mechanism is provided on the other side of the top of the testing platform.

[0008] The simulation drive mechanism includes a support ring, and a plurality of buffer support components are provided at the bottom of the support ring. The buffer support components are limited and supported at the top of the detection platform.

[0009] The top of the support ring is provided with several sets of boss assemblies, and the top of the support ring is provided with limiting holes that are compatible with the boss assemblies.

[0010] The simulated load mechanism includes two sets of symmetrically arranged mounting bases. The two sets of mounting bases support the axle to be tested at the middle of one side of each other. A data acquisition device is installed at the bottom of the axle to be tested. Tires are installed at both ends of the axle to be tested. The bottom of one set of tires is supported on the top of a support ring. The top of the testing platform is also provided with a support roller that supports the bottom of the other set of tires.

[0011] As a further optimization of the present invention, the heights of the several groups of boss components are different, and they are boss structures that engage with the support ring. Both sides of the boss components are sloping structures.

[0012] As a further optimization of the present invention, the buffer support assembly includes a support block, the bottom of the support block is provided with a plurality of support rollers, the top of the detection platform is provided with a limiting ring groove that is adapted to the support rollers, the top of the support block is provided with a support piston column, the bottom of the support ring is provided with a piston cavity that is piston-fitted with the support piston column, and the top of the support piston column is also provided with a second spring that is fastened to the top of the piston cavity.

[0013] As a further optimization of the present invention, both sides of the support block are hinged with hinge rods, and the other ends of the two sets of hinge rods are hinged with hinge slides. The bottom of the support ring is provided with a slide groove that matches the hinge slide, and the inside of the slide groove is provided with a limiting slide rod that passes through both sides of the hinge slide. The hinge slide slides outside the limiting slide rod. A third spring is also sleeved on the outside of the limiting slide rod, and the two ends of the third spring are respectively fastened to one side of the hinge slide and the inner wall of the slide groove.

[0014] As a further optimization of the present invention, a support disk is provided in the middle of the support ring, a transmission shaft is provided in the middle of the bottom of the support disk and extends through to the bottom of the detection platform, and a drive motor connected to the transmission shaft is provided at the bottom of the detection platform.

[0015] As a further optimization of the present invention, the detection platform is embedded with a support base that is compatible with the drive shaft. Several sets of support slide rods inserted into the support base are evenly distributed at the bottom edge of the support disc. The upper and lower ends of the support base are provided with through holes that are compatible with the support slide rods. A first spring is sleeved on the outside of the support slide rod, and the two ends of the first spring are respectively connected to the bottom of the support disc and the top of the support base.

[0016] As a further optimization of the present invention, a second limiting groove is provided at both ends of the two sets of mounting seats that are close to each other. A limiting slider is slidably provided inside the second limiting groove. A support shaft is provided between the two sets of limiting sliders located on the same side of the two sets of mounting seats. A support platform is provided in the middle of the outer side of the support shaft, and the support platform is used to support the bottom of the axle to be tested. A fourth spring is provided at both the upper and lower ends of the limiting slider and is fastened to the inner wall of the second limiting groove.

[0017] As a further optimization of the present invention, the support base is sleeved on the outside of the support shaft and can be deflected to both sides, and the two ends of the support shaft are fastened to the limiting slider.

[0018] As a further optimization of the present invention, a first limiting groove is provided in the middle of the two sets of mounting seats that are close to each other. Several sets of support sleeves are provided at the upper and lower ends of the first limiting groove. A counterweight base is provided in the middle of the top of the axle to be tested. The two ends of the counterweight base are sleeved on the outside of the support sleeves. The counterweight base is provided with sliding holes that are adapted to the support sleeves. The diameter of the sliding holes is larger than the diameter of the support sleeves.

[0019] As a further optimization of the present invention, the top of the counterweight base is provided with an adaptable counterweight block, which can be increased or decreased according to the detection requirements.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. In the static stage, this invention achieves stable evaluation of the axle's compressive strength under different load conditions by configuring an adjustable counterweight; in the dynamic simulation stage, a rotatable boss assembly is used to push the tires to generate undulations, realistically reproducing the unbalanced stress state of the axle under bumpy road conditions, thereby revealing the changes in stress and shear strength. By integrating static load and dynamic simulation testing, the limitations of single working conditions in traditional testing are effectively overcome.

[0022] 2. This invention, through the cooperation of a multi-stage spring and articulated support system, effectively absorbs the impact and vibration generated during dynamic testing, ensuring that the support components remain tightly fitted to the axle during deflection, thus guaranteeing the continuity and accuracy of data acquisition. Simultaneously, the height of the boss assembly is adjustable, further expanding the diversity of simulated road conditions and maintaining the stability of the structure during testing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the overall structure of the simulated drive mechanism in this invention;

[0026] Figure 4 This is a cross-sectional view of the overall structure of the simulated drive mechanism in this invention;

[0027] Figure 5 This is an enlarged cross-sectional view of the structure at the support ring in this invention;

[0028] Figure 6 This is an enlarged bottom view of the structure at the support ring in this invention;

[0029] Figure 7 This is an enlarged schematic diagram of the structure at the buffer support component in this invention;

[0030] Figure 8 This is an enlarged schematic diagram of the overall structure of the simulated load mechanism in this invention;

[0031] Figure 9 This is an enlarged schematic diagram of the structure at the axle to be tested and the support platform in this invention;

[0032] Figure 10 This is an enlarged schematic diagram of the structure at the mounting base in this invention.

[0033] In the picture:

[0034] 100. Testing platform; 200. Simulated drive mechanism; 300. Simulated load mechanism; 400. Tire; 500. Axle to be tested;

[0035] 201. Limiting ring groove; 202. Boss assembly; 203. Support ring; 204. Support disc; 205. Drive motor; 206. Buffer support assembly; 207. Support seat; 208. Support slide rod; 209. Drive shaft; 210. First spring; 211. Limiting hole; 212. Piston chamber; 213. Slide groove;

[0036] 2061, Support block; 2062, Support roller; 2063, Hinge rod; 2064, Support piston rod; 2065, Second spring; 2066, Limiting slide rod; 2067, Third spring; 2068, Hinge slide;

[0037] 301. Mounting stand; 302. Support roller; 303. First limiting groove; 304. Support sleeve rod; 305. Counterweight block; 306. Support platform; 307. Support shaft; 308. Limiting slider; 309. Counterweight base; 310. Fourth spring; 311. Second limiting groove. Detailed Implementation

[0038] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0039] Example 1

[0040] like Figures 1 to 10 As shown, a testing device for the compressive strength of automobile axles includes a testing platform 100, a simulated drive mechanism 200 is provided on one side of the top of the testing platform 100, and a simulated load mechanism 300 is provided on the other side of the top of the testing platform 100.

[0041] The simulation drive mechanism 200 includes a support ring 203, and a number of buffer support components 206 are provided at the bottom of the support ring 203. The buffer support components 206 are limited and supported at the top of the detection platform 100.

[0042] The buffer support assembly 206 includes a support block 2061, a plurality of support rollers 2062 are provided at the bottom of the support block 2061, a limiting ring groove 201 that is adapted to the support rollers 2062 is provided at the top of the detection platform 100, a support piston column 2064 is provided at the top of the support block 2061, a piston cavity 212 that is piston-fitted with the support piston column 2064 is provided at the bottom of the support ring 203, and a second spring 2065 that is fastened to the top of the piston cavity 212 is also provided at the top of the support piston column 2064.

[0043] Both sides of the support block 2061 are hinged with hinge rods 2063, and the other ends of the two sets of hinge rods 2063 are hinged with hinge slides 2068. The bottom of the support ring 203 is provided with a slide groove 213 that is compatible with the hinge slide 2068. The slide groove 213 is provided with a limiting slide rod 2066 that passes through both sides of the hinge slide 2068. The hinge slide 2068 slides on the outside of the limiting slide rod 2066. A third spring 2067 is also sleeved on the outside of the limiting slide rod 2066. The two ends of the third spring 2067 are respectively fastened to one side of the hinge slide 2068 and the inner wall of the slide groove 213.

[0044] The top of the support ring 203 is provided with several sets of boss components 202. The top of the support ring 203 is provided with limiting holes 211 that are compatible with the boss components 202. The several sets of boss components 202 have different heights and are boss structures that engage with the support ring 203. Both sides of the boss components 202 are sloping structures.

[0045] A support disc 204 is provided in the middle of the support ring 203. A drive shaft 209 is provided in the middle of the bottom of the support disc 204, which extends to the bottom of the detection platform 100. A drive motor 205 connected to the drive shaft 209 is provided at the bottom of the detection platform 100. A support seat 207 that is compatible with the drive shaft 209 is embedded inside the detection platform 100. Several sets of support slide rods 208 inserted into the support seat 207 are evenly distributed at the bottom edge of the support disc 204. Through holes that are compatible with the support slide rods 208 are provided at the upper and lower ends of the support seat 207. A first spring 210 is sleeved on the outside of the support slide rod 208. The two ends of the first spring 210 are connected to the bottom of the support disc 204 and the top of the support seat 207, respectively.

[0046] The simulated load mechanism 300 includes two sets of symmetrically arranged mounting bases 301. The two sets of mounting bases 301 support the axle under test 500 together at the middle of one side of each other. A data acquisition device is provided at the bottom of the axle under test 500. Tires 400 are provided at both ends of the axle under test 500. The bottom of one set of tires 400 is supported on the top of the support ring 203. The top of the testing platform 100 is also provided with a support roller 302 that supports the bottom of the other set of tires 400.

[0047] Two sets of mounting bases 301 are provided with second limiting grooves 311 at both ends of one side of each other. A limiting slider 308 is slidably provided inside the second limiting groove 311. A support shaft 307 is provided between the two sets of limiting sliders 308 on the same side of the two sets of mounting bases 301. A support platform 306 is provided in the middle of the outer side of the support shaft 307. The support platform 306 is used to support the bottom of the axle 500 to be tested. A fourth spring 310 is provided at both the upper and lower ends of the limiting slider 308 and is fastened to the inner wall of the second limiting groove 311. The support platform 306 is sleeved on the outer side of the support shaft 307 and can be deflected to both sides. The two ends of the support shaft 307 are fastened to the limiting slider 308.

[0048] Two sets of mounting bases 301 are provided with a first limiting groove 303 in the middle of one side of each other. Several sets of support sleeves 304 are provided at the upper and lower ends of the first limiting groove 303. A counterweight base 309 is provided in the middle of the top of the axle to be tested 500. The two ends of the counterweight base 309 are sleeved on the outside of the support sleeves 304. The counterweight base 309 is provided with sliding holes that are compatible with the support sleeves 304. The diameter of the sliding holes is larger than the diameter of the support sleeves 304.

[0049] The top of the counterweight base 309 is provided with an adaptable counterweight block 305, which can be increased or decreased according to the testing requirements.

[0050] The usage process of the testing equipment for the compressive strength of automobile axles proposed in this embodiment is as follows: When the device is in use, the stress and shear strength of the axle 500 to be tested are collected by the data acquisition device and fed back to the control terminal, thereby realizing the function of collecting compressive strength information. The data acquisition device and the control terminal are both sensor devices in the prior art, and their working principle is exactly the same as that of the prior art, which will not be described in detail here.

[0051] When it is necessary to test the compressive strength of the axle 500 to be tested, the tires 400 are mounted on both ends of the axle 500 to be tested, and then the bottom of the axle 500 to be tested is supported by the support base 306.

[0052] At this time, one end of the tire 400 is supported on the top of the support roller 302, and the other end is supported on the top of the support ring 203;

[0053] By pressing the counterweight base 309 onto the top of the axle 500 to be tested, the counterweight base 309 generates a downward load pressure on the top of the axle 500 to be tested. At the same time, according to the actual testing needs, counterweight blocks 305 of different weights can be added to the top of the counterweight base 309, thereby realizing the compressive performance test of the axle 500 under different counterweight conditions.

[0054] During the process of counterweighting the counterweight block 305, the support ring 203 is initially in a stationary state, which in turn makes the axle under test 500 in a stationary state. At this time, data can be collected on the load of the axle under test 500 in a stationary state.

[0055] Then the drive motor 205 is started to drive the support disk 204 at the top of the transmission shaft 209 to rotate, which in turn drives the support ring 203 to rotate. At this time, the top of the support ring 203 is also equipped with several sets of boss assemblies 202.

[0056] As the support ring 203 rotates, the boss assembly 202 rotates synchronously. When the boss assembly 202 rotates to the position of the tire 400, it exerts an upward pushing force on the tire 400, causing the tire 400 to move upward, which in turn causes one end of the axle 500 to be tested to lift up.

[0057] By tilting one end of the axle under test 500, the system simulates the unbalanced load on the left and right sides of the axle under test on a bumpy road section under load. This allows the axle under test 500 to show the changes in stress and shear strength under this condition, thereby achieving data acquisition and improving the comprehensiveness of the test of the axle under test 500.

[0058] Meanwhile, the different compressions exerted on the tire 400 by the boss components 202 of different heights result in different heights of the axle under test 500 being raised at one end, thereby increasing the diversity of the simulation data.

[0059] During the process of the tire 400 being subjected to force, the support ring 203 applies pressure to the hinge slide 2068 in the opposite direction and downward, thereby causing the hinge rod 2063 to extend and move, and causing the hinge slide 2068 to slide inside the slide groove 213. At the same time, the support piston rod 2064 moves up and down inside the piston cavity 212. The rebound force of the second spring 2065 and the third spring 2067 neutralizes the force, thereby maintaining the stability of the position structure of the support ring 203.

[0060] At the same time, the fastening connection between the support disc 204 and the support ring 203 causes the support disc 204 to tilt as well. Through the cooperation of the support slide rod 208 and the first spring 210, the support disc 204 can maintain the stability of its position structure, and thus continue to drive the support ring 203 to rotate.

[0061] During the process of one end of the axle under test 500 being raised, the bottom of the axle under test 500 is supported by the support platform 306, and the support platform 306 is simultaneously subjected to the elastic force of the fourth spring 310, thereby keeping the support platform 306 in contact with the bottom of the axle under test 500. At the same time, the support platform 306 can deflect to the outside of the support shaft 307, thereby making the top of the support platform 306 fit more tightly with the bottom of the axle under test 500, playing a role in stable support.

[0062] Through the cooperation of the above components, the static and dynamic comprehensive compressive performance test of the axle under test was realized, simulating the stress and shear strength changes of the axle under load when driving on a bumpy roadbed, so as to provide more comprehensive test data.

[0063] The specific implementation methods of the embodiments of the present invention have been described above. However, the embodiments of the present invention are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments of the present invention, all of which are within the protection scope of the embodiments of the present invention.

Claims

1. A testing device for the compressive strength of automotive axles, characterized in that, It includes a detection platform (100), a simulated drive mechanism (200) is provided on one side of the top of the detection platform (100), and a simulated load mechanism (300) is provided on the other side of the top of the detection platform (100). The simulation drive mechanism (200) includes a support ring (203), and a plurality of buffer support components (206) are provided at the bottom of the support ring (203). The buffer support components (206) are limited and supported on the top of the detection platform (100). The top of the support ring (203) is provided with a number of boss assemblies (202), and the top of the support ring (203) is provided with limiting holes (211) that are compatible with the boss assemblies (202). The simulated load mechanism (300) includes two sets of symmetrically arranged mounting bases (301). The two sets of mounting bases (301) support the axle to be tested (500) at the middle of one side of each other. A data acquisition device is provided at the bottom of the axle to be tested (500). Tires (400) are provided at both ends of the axle to be tested (500). The bottom of one set of tires (400) is supported on the top of the support ring (203). The top of the testing platform (100) is also provided with a support roller (302) that supports the bottom of the other set of tires (400). The buffer support assembly (206) includes a support block (2061), the bottom of the support block (2061) is provided with a plurality of support rollers (2062), the top of the detection platform (100) is provided with a limiting ring groove (201) that is adapted to the support rollers (2062), the top of the support block (2061) is provided with a support piston column (2064), the bottom of the support ring (203) is provided with a piston cavity (212) that is piston-fitted to the support piston column (2064), and the top of the support piston column (2064) is also provided with a second spring (2065) that is fastened to the top of the piston cavity (212). The support block (2061) is hinged to both sides with hinge rods (2063), and the other end of each set of hinge rods (2063) is hinged to a hinge slide (2068). The bottom of the support ring (203) is provided with a slide groove (213) that is compatible with the hinge slide (2068). The slide groove (213) is provided with a limiting slide rod (2066) that passes through both sides of the hinge slide (2068). The hinge slide (2068) slides on the outside of the limiting slide rod (2066). A third spring (2067) is also sleeved on the outside of the limiting slide rod (2066). The two ends of the third spring (2067) are respectively fastened to one side of the hinge slide (2068) and the inner wall of the slide groove (213). The support ring (203) has a support disc (204) in the middle, and a drive shaft (209) extending through to the bottom of the detection platform (100) is provided in the middle of the bottom of the support disc (204). The bottom of the detection platform (100) has a drive motor (205) that is connected to the drive shaft (209).

2. The testing equipment for the compressive strength of automotive axles according to claim 1, characterized in that, The heights of the several sets of boss components (202) are different. They are boss structures that engage with the support ring (203). Both sides of the boss components (202) are sloping structures.

3. The testing equipment for the compressive strength of automotive axles according to claim 1, characterized in that, The detection platform (100) has a support base (207) that is compatible with the drive shaft (209) embedded inside. Several sets of support slide rods (208) that are inserted into the support base (207) are evenly distributed at the bottom edge of the support disc (204). The upper and lower ends of the support base (207) are provided with through holes that are compatible with the support slide rods (208). A first spring (210) is sleeved on the outside of the support slide rod (208), and the two ends of the first spring (210) are respectively connected to the bottom of the support disc (204) and the top of the support base (207).

4. The testing equipment for the compressive strength of automotive axles according to claim 1, characterized in that, Two sets of mounting bases (301) are provided with second limiting grooves (311) at both ends of the side close to each other. A limiting slider (308) is slidably provided inside the second limiting groove (311). A support shaft (307) is provided between the two sets of limiting sliders (308) located on the same side of the two sets of mounting bases (301). A support platform (306) is provided in the middle of the outer side of the support shaft (307), and the support platform (306) is used to support the bottom of the axle (500) to be tested. A fourth spring (310) is provided at both the upper and lower ends of the limiting slider (308) and is fastened to the inner wall of the second limiting groove (311).

5. The testing equipment for the compressive strength of automotive axles according to claim 4, characterized in that, The support base (306) is sleeved on the outside of the support shaft (307) and can be deflected to both sides. The two ends of the support shaft (307) are fastened to the limiting slider (308).

6. The testing equipment for the compressive strength of automotive axles according to claim 1, characterized in that, Both sets of mounting bases (301) are provided with a first limiting groove (303) in the middle of one side of each other. Several sets of support sleeves (304) are provided at the upper and lower ends of the first limiting groove (303). A counterweight base (309) is provided in the middle of the top of the axle to be tested (500). The two ends of the counterweight base (309) are sleeved on the outside of the support sleeves (304). The counterweight base (309) is provided with sliding holes that are compatible with the support sleeves (304) inside. The diameter of the sliding holes is larger than the diameter of the support sleeves (304).

7. The testing equipment for the compressive strength of automotive axles according to claim 6, characterized in that, The top of the counterweight base (309) is provided with an adaptable counterweight block (305), and the counterweight block (305) can be increased or decreased according to the testing requirements.

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