Automobile chassis test platform

Abstract

An automobile chassis test platform comprises a base, a test bed is fixedly connected to the outer wall of the upper side of the base, guide slopes are fixedly connected to the outer walls of the two sides of the base, a lifting plate is slidably arranged in the base, and a damping plate is slidably arranged below the lifting plate. A folding and unfolding assembly is arranged between the lifting plate and the inner wall of the upper side of the base, and a damping assembly is arranged between the lifting plate and the damping plate. Compared with the prior art, the test bed has the advantages that the moving wheels can extend out when the test bed needs to be moved through the retracting and releasing assembly, the moving wheels can retract into the base when a test is carried out, the base touches the ground, the test bed is more stable and reliable, the damping effect can be achieved in the moving process through the damping assembly, and the service life of the test bed is prolonged. Impact on parts on the test bench caused by bumping of the road surface is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile chassis testing, in particular to an automobile chassis testing platform. Background Art

[0002] In recent years, the automotive industry has developed rapidly. As the core component of the automobile, the chassis system is crucial to the performance of the entire vehicle in terms of safety and reliability. In order to ensure that the performance of the automobile chassis system meets the standard requirements, it is necessary to use a chassis test platform to conduct static, dynamic, and fatigue mechanical performance tests on the automobile chassis.

[0003] After searching, the Chinese patent with announcement number CN205280375U discloses a multifunctional mobile automobile chassis test bench, which consists of: small rollers, motors, belts, lifting rods, drums, test benches, safety hooks, and baffles. Four groups of drums are installed on the test bench. The drums are connected to the lifting rods and can be raised and lowered. One end of the belt is connected to the motor, and the other end is connected to the drum. The upper end of the test bench is equipped with a baffle, the lower end is equipped with four small rollers, and the rear end of the test bench is equipped with a safety hook.

[0004] The above-mentioned prior art solution has the following deficiencies: although the four small rollers solve the problem that the test bench is fixedly installed, cannot be moved, and is inconvenient to use, the setting of the small rollers will make the test bench prone to displacement and instability during the test, and during the movement, the bumps of the road surface will cause impacts on the components on the test bench, reducing the service life of the test bench. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides an automobile chassis test platform to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is an automobile chassis test platform, including a base, a test bench is fixedly connected to the upper outer wall of the base, guide ramps are fixedly connected to the outer walls on both sides of the base, a lifting plate is slidably provided inside the base and a shock-absorbing plate is slidably provided below the lifting plate, a retractable and extending assembly is provided between the lifting plate and the upper inner wall of the base, and a shock-absorbing assembly is provided between the lifting plate and the shock-absorbing plate.

[0007] As an improvement: the retracting and releasing assembly includes a bidirectional screw, a moving block, a first connecting rod, a driving motor and a pulley, two bidirectional screws are rotatably arranged between the front and rear inner walls of the base, two symmetrically distributed moving blocks are threadedly sleeved on the bidirectional screws, a first connecting rod is hinged on the bottom wall of the moving block, the other end of the first connecting rod is hinged to the upper side wall of the lifting plate, a driving motor is installed on the rear outer wall of the base, the output shaft end of the driving motor extends to the interior of the base and is fixedly connected to one end of one of the bidirectional screws, one end portion of the two bidirectional screws are fixedly sleeved with pulleys, and transmission is carried out between the two pulleys through a transmission belt.

[0008] As an improvement: the shock absorbing assembly includes a damping telescopic rod, a slide groove, a slider, a first spring and a second connecting rod; a damping telescopic rod is installed at the center of the lower side wall of the lifting plate; the telescopic end of the damping telescopic rod is fixedly connected to the shock absorbing plate; four slide grooves are provided on the lower side wall of the lifting plate with the damping telescopic rod as the center ring; a slider is provided inside the slide groove for sliding; a first spring is provided between the slider and a side wall of the slide groove away from the damping telescopic rod; a second connecting rod is hinged on the bottom wall of the slider; the other end of the second connecting rod is hinged to the center of the upper side wall of the shock absorbing plate.

[0009] As an improvement: guide columns are fixedly connected to the four corners of the upper side wall of the shock-absorbing plate, the upper end of the guide column slides through the lifting plate and extends above it, and a second spring is sleeved on the outer side of the guide column, one end of the second spring is fixedly connected to the lifting plate and the other end is fixedly connected to the shock-absorbing plate.

[0010] As an improvement: a guide groove is provided on the upper inner wall of the base and directly above the bidirectional screw, and the moving block is slidably connected to the guide groove.

[0011] As an improvement: moving wheels are respectively installed at the four corners of the bottom wall of the shock-absorbing plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By setting up the retractable assembly, the moving wheels can be extended when the test bench needs to be moved. When conducting tests, the moving wheels will be retracted into the base so that the base can touch the ground, which is more stable and reliable. The setting of the shock-absorbing assembly can have a shock-absorbing effect during the movement, avoiding the impact of road bumps on the parts on the test bench and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an automobile chassis test platform of the utility model;

[0015] Figure 2This is a schematic diagram of the internal structure of a base of an automobile chassis test platform of the utility model;

[0016] Figure 3 The utility model is a schematic diagram of the structure of a shock absorbing component of an automobile chassis test platform.

[0017] As shown in the figure:

[0018] 1. Base; 1.1. Test bench; 1.2. Guide ramp; 1.3. Lifting plate; 1.4. Shock-absorbing plate; 2. Retracting and extending assembly; 3. Shock-absorbing assembly; 2.1. Bidirectional screw; 2.2. Moving block; 2.3. First connecting rod; 2.4. Driving motor; 2.5. Pulley; 3.1. Damping telescopic rod; 3.2. Slide groove; 3.3. Sliding block; 3.4. First spring; 3.5. Second connecting rod; 1.5. Guide column; 1.6. Second spring; 1.7. Moving wheel. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both sides", "one side", "the other side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 and Figure 2As shown, an automobile chassis test platform comprises a base 1, a test bench 1.1 is fixedly connected to the upper outer wall of the base 1, the test bench 1.1 is used to perform various tests on the chassis, guide ramps 1.2 are fixedly connected to the outer walls on both sides of the base 1, the guide ramps 1.2 are used to pull the chassis onto the test bench 1.1, a lifting plate 1.3 is slidably provided inside the base 1 and a shock absorbing plate 1.4 is slidably provided below the lifting plate 1.3, a retractable assembly 2 is provided between the lifting plate 1.3 and the upper inner wall of the base 1, and a shock absorbing assembly 3 is provided between the lifting plate 1.3 and the shock absorbing plate 1.4.

[0023] Specifically, Figure 2 As shown, a vehicle chassis test platform, the retracting and unfolding assembly 2 includes a bidirectional screw 2.1, a moving block 2.2, a first connecting rod 2.3, a driving motor 2.4 and a pulley 2.5, two bidirectional screws 2.1 are rotatably arranged between the front and rear inner walls of the base 1, two symmetrically distributed moving blocks 2.2 are threadedly sleeved on the bidirectional screw 2.1, the bottom wall of the moving block 2.2 is hinged with a first connecting rod 2.3, the other end of the first connecting rod 2.3 is hinged to the upper side wall of the lifting plate 1.3, a driving motor 2.4 is installed on the rear outer wall of the base 1, the output shaft end of the driving motor 2.4 extends to the inside of the base 1 and is fixedly connected to one end of one of the bidirectional screws 2.1, one end of the two bidirectional screws 2.1 are fixedly sleeved with pulleys 2.5, and the two pulleys 2.5 are transmitted by a transmission belt. When it is necessary to move the test bench 1.1, the output shaft of the driving motor 2.4 Drive one of the bidirectional screws 2.1 to rotate, and the rotation of the bidirectional screw 2.1 will drive the pulley 2.5 to rotate. After the transmission of the transmission belt, the other pulley 2.5 will drive the other bidirectional screw 2.1 to rotate synchronously. When the bidirectional screw 2.1 rotates, the two moving blocks 2.2 threadedly connected thereto can be brought closer to each other, and the first connecting rod 2.3 will push the lifting plate 1.3 to move downward. Then, under the action of the second spring 1.6 and the shock absorbing assembly 3, the shock absorbing plate 1.4 drives the moving wheel 1.7 to move downward slowly, propping up the base 1. The moving wheel 1.7 touches the ground and can move. After moving to the test point, the driving motor 2.4 is reversed. After transmission, the two moving blocks 2.2 on the bidirectional screw 2.1 will move away from each other, and the first connecting rod 2.3 pulls the lifting plate 1.3 to move upward, so that the moving wheel 1.7 is retracted into the inside of the base 1. The base 1 touches the ground to form a stable support, which is more stable and reliable.

[0024] Specifically, Figure 3As shown, a vehicle chassis test platform, the shock absorbing assembly 3 includes a damping telescopic rod 3.1, a slide groove 3.2, a slider 3.3, a first spring 3.4 and a second connecting rod 3.5, the damping telescopic rod 3.1 is installed at the center of the lower side wall of the lifting plate 1.3, the telescopic end of the damping telescopic rod 3.1 is fixedly connected to the shock absorbing plate 1.4, four slide grooves 3.2 are arranged on the lower side wall of the lifting plate 1.3 with the damping telescopic rod 3.1 as the center ring, the slider 3.3 is arranged inside the slide groove 3.2 for sliding, the first spring 3.4 is arranged between the slider 3.3 and a side wall of the slide groove 3.2 away from the damping telescopic rod 3.1, the second connecting rod 3.5 is hinged on the bottom wall of the slider 3.3, and the second connecting rod The other end of 3.5 is hinged with the center of the upper side wall of the shock-absorbing plate 1.4. When encountering bumps during movement, the shock-absorbing plate 1.4 will slide up and down. Under the action of the four second connecting rods 3.5, the impact force of the road surface will be dispersed to the four sliders 3.3. The sliders 3.3 will squeeze the first spring 3.4 to undergo elastic deformation, thereby buffering and offsetting the impact force. The damping telescopic rod 3.1 can provide a certain resistance to suppress the repeated lateral jumping of the first spring 3.4 and the second spring 1.6 after shock absorption, so that the shock-absorbing plate 1.4 can quickly stabilize after passing through a bumpy section, fully protecting the components on the test bench 1.1 from the impact force of the road surface and improving the service life.

[0025] Specifically, Figure 2 As shown, a vehicle chassis test platform is provided, wherein guide columns 1.5 are fixedly connected at the four corners of the upper side wall of a shock absorbing plate 1.4, the upper end of the guide column 1.5 slides through the lifting plate 1.3 and extends above it, a second spring 1.6 is sleeved on the outer side of the guide column 1.5, one end of the second spring 1.6 is fixedly connected to the lifting plate 1.3 and the other end is fixedly connected to the shock absorbing plate 1.4, when bumpy, the shock absorbing plate 1.4 slides up and down to force the second spring 1.6 to undergo elastic deformation for buffering.

[0026] Specifically, Figure 2 As shown, a vehicle chassis test platform is provided, a guide groove is provided on the upper inner wall of the base 1 and just above the bidirectional screw 2.1, and the moving block 2.2 is slidably connected to the guide groove, so that the moving block 2.2 moves more smoothly.

[0027] Specifically, Figure 2 As shown, a vehicle chassis test platform, moving wheels 1.7 are respectively installed at the four corners of the bottom wall of the shock absorbing plate 1.4, so as to facilitate the movement of the test platform 1.1.

[0028] During the specific implementation of the utility model, when the test bench 1.1 needs to be moved, the output shaft of the driving motor 2.4 drives one of the two-way screws 2.1 to rotate, and the two-way screw 2.1 rotates, which drives the pulley 2.5 to rotate. After the transmission of the transmission belt, the other pulley 2.5 drives the other two-way screw 2.1 to rotate synchronously. When the two-way screw 2.1 rotates, the two moving blocks 2.2 connected with the two-way screw 2.1 can be brought closer to each other. The first connecting rod 2.3 pushes the lifting plate 1.3 downward, and then under the action of the second spring 1.6 and the shock absorbing assembly 3, the shock absorbing plate 1.4 drives the moving wheel 1.7 to move slowly downward, propping up the base 1, and the moving wheel 1.7 touches the ground, so that the test bench 1.1 can be moved. When bumps are encountered during the movement, the shock absorbing plate 1.4 slides up and down, and under the action of the four second connecting rods 3.5, the impact force of the road surface will be dispersed to the four sliders 3. 3, the slider 3.3 will squeeze the first spring 3.4 to cause elastic deformation, buffer and offset the impact force, while the shock-absorbing plate 1.4 slides up and down, the second spring 1.6 will cause elastic deformation, further buffer and offset the impact force, the damping telescopic rod 3.1 can provide a certain resistance to suppress the repeated lateral jumping of the first spring 3.4 and the second spring 1.6 after shock absorption, so that the shock-absorbing plate 1.4 can quickly stabilize after passing through a bumpy road section, fully protecting the components on the test bench 1.1 from the impact force of the road surface, and improving the service life. After moving to the test point, the drive motor 2.4 is reversed. After transmission, the two moving blocks 2.2 on the bidirectional screw 2.1 will move away from each other, and the first connecting rod 2.3 pulls the lifting plate 1.3 to move up, so that the moving wheel 1.7 is retracted into the inside of the base 1, and the base 1 touches the ground to form a stable support, which is more stable and reliable.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automobile chassis test platform, comprising a base (1), characterized in that: A test bench (1.1) is fixedly connected to the upper outer wall of the base (1), guide ramps (1.2) are fixedly connected to the outer walls on both sides of the base (1), a lifting plate (1.3) is slidably provided inside the base (1), and a shock absorbing plate (1.4) is slidably provided below the lifting plate (1.3), a retractable assembly (2) is provided between the lifting plate (1.3) and the upper inner wall of the base (1), and a shock absorbing assembly (3) is provided between the lifting plate (1.3) and the shock absorbing plate (1.4).

2. The automobile chassis test platform according to claim 1, characterized in that: The retractable assembly (2) comprises a bidirectional screw (2.1), a moving block (2.2), a first connecting rod (2.3), a driving motor (2.4) and a pulley (2.5); two bidirectional screws (2.1) are rotatably arranged between the front and rear inner walls of the base (1); two symmetrically distributed moving blocks (2.2) are threadedly sleeved on the bidirectional screws (2.1); a first connecting rod (2.3) is hingedly connected to the bottom wall of the moving block (2.2); the other end of the first connecting rod (2.3) is hingedly connected to the upper side wall of the lifting plate (1.3); a driving motor (2.4) is installed on the rear outer wall of the base (1); the output shaft end of the driving motor (2.4) extends into the interior of the base (1) and is fixedly connected to one end of one of the bidirectional screws (2.1); one end of each of the two bidirectional screws (2.1) is fixedly sleeved with a pulley (2.5); and a transmission belt is provided between the two pulleys (2.5) for transmission.

3. The automobile chassis test platform according to claim 1, characterized in that: The shock absorbing assembly (3) comprises a damping telescopic rod (3.1), a slide groove (3.2), a slider (3.3), a first spring (3.4) and a second connecting rod (3.5); the damping telescopic rod (3.1) is installed at the center of the lower side wall of the lifting plate (1.3); the telescopic end of the damping telescopic rod (3.1) is fixedly connected to the shock absorbing plate (1.4); four slide grooves (3.2) are provided on the lower side wall of the lifting plate (1.3) with the damping telescopic rod (3.1) as the center ring; a slider (3.3) is provided inside the slide groove (3.2) for sliding; a first spring (3.4) is provided between the slider (3.3) and a side wall of the slide groove (3.2) away from the damping telescopic rod (3.1); a second connecting rod (3.5) is hinged on the bottom wall of the slider (3.3); the other end of the second connecting rod (3.5) is hinged to the center of the upper side wall of the shock absorbing plate (1.4).

4. The automobile chassis test platform according to claim 1, characterized in that: Guide columns (1.5) are fixedly connected at the four corners of the upper side wall of the shock absorbing plate (1.4), the upper end of the guide column (1.5) slides through the lifting plate (1.3) and extends above it, and a second spring (1.6) is sleeved on the outer side of the guide column (1.5), one end of the second spring (1.6) is fixedly connected to the lifting plate (1.3) and the other end is fixedly connected to the shock absorbing plate (1.4).

5. The automobile chassis test platform according to claim 2, characterized in that: A guide groove is provided on the upper inner wall of the base (1) and directly above the bidirectional screw (2.1), and the moving block (2.2) is slidably connected to the guide groove.

6. The automobile chassis test platform according to claim 1, characterized in that: Moving wheels (1.7) are respectively installed at the four corners of the bottom wall of the shock absorbing plate (1.4).

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