Environment simulation device for automobile driving test

Abstract

The invention provides an environment simulation device for an automobile driving test, which comprises a test chamber, a controller, and a test bench, a fan, a sand supply mechanism, a mounting rack and a spraying mechanism arranged in the test chamber, the mounting rack is provided with a blanking box, the sand supply mechanism conveys dust to the blanking box, the blanking box is provided with a blanking mechanism for adjusting the discharge amount, and the spraying mechanism is provided with a spraying mechanism for spraying the dust to the blanking mechanism. An air guide frame is arranged at the bottom of the discharging box, a plurality of air guide plates are rotationally arranged at the air guide frame, a reciprocating mechanism for driving the air guide plates to rotate is arranged at the air guide frame, an adjusting mechanism is arranged on the reciprocating mechanism, rainy day environment simulation can be achieved through the spraying mechanism, sand and dust environment simulation is conducted through cooperation of the draught fan, the sand supply mechanism and the discharging mechanism, and the discharging mechanism is used for adjusting the sand and dust amount. The reciprocating mechanism is used for adjusting the wind direction and can drive the multiple wind deflectors to swing in a reciprocating mode to be matched with the controller to adjust the air outlet amount of the draught fan to achieve gust with the variable wind direction and air amount, and therefore environment simulation of complex sand and dust is achieved, and the test requirements of an automobile in various sand and dust environments are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile driving test, in particular to an environment simulation device for automobile driving test. BACKGROUND

[0002] With the rapid development of automobile industry, vehicles have become an indispensable means of transportation in our daily life. However, when the car is driving outdoors, it will inevitably be affected by various climatic environments, such as high temperature, low temperature, humidity, light, air pressure, rain, snow, wind and sand, etc. These environmental factors will not only affect the service life and performance of the car, but also may even cause the car to fail, posing a threat to the life and property safety of consumers. In order to cope with this challenge, domestic and foreign automobile enterprises are vigorously developing automobile environmental adaptability test research to ensure that their products can operate normally under various climatic environmental conditions around the world, thereby improving the market competitiveness of their products. These tests run through the whole process of automobile development, finalization, production and use, and are the basis and effective means for automobile environmental adaptability design.

[0003] The current environmental simulation test mainly evaluates the performance, reliability and safety of the car by simulating extreme or complex automobile driving environment conditions. For example, the automobile environment simulation test chamber disclosed in CN221859946U includes a car placing table, a mounting cover, a rainwater spraying simulation assembly, a light simulation assembly and a controller. The car is placed on the car placing table, the rainwater spraying simulation assembly is used to simulate rainwater spraying and water splashing, and the light simulation assembly is used to simulate light, thereby realizing the simulation of rain and light environment during car detection. However, the existing simulation device is still difficult to simulate complex sand environment, and it is difficult to meet the testing requirements of the car in the sand environment. SUMMARY

[0004] The present application aims to solve the above problems by providing an environment simulation device for automobile driving test.

[0005] The present application provides an environment simulation device for automobile driving test, comprising: a test chamber, wherein a test table for parking a car, a fan, a sand supply mechanism and a mounting bracket are arranged in the test chamber, a spraying mechanism is arranged on the top of the test chamber, the mounting bracket is arranged in front of the blowing end of the fan, a feeding box is arranged on the mounting bracket, the sand supply mechanism is used to deliver dust to the feeding box, a discharging port is arranged at the lower end of the feeding box, and a discharging mechanism for adjusting the discharging amount is arranged on the feeding box; An air guide frame is connected with the material dropping opening and used for receiving material at the material dropping opening, the air guide frame is rotationally provided with a plurality of air guide plates used for adjusting air direction, and a reciprocating mechanism used for driving the plurality of air guide plates to reciprocate is arranged. An adjusting mechanism is arranged on the reciprocating mechanism and used for adjusting an angle range of the plurality of air guide plates reciprocating in cooperation with the reciprocating mechanism. A controller is electrically connected with the air blower, the sand supplying mechanism, the spraying mechanism, the material dropping mechanism, the reciprocating mechanism and the adjusting mechanism respectively and controls working states of the respective mechanisms.

[0006] Preferably, the reciprocating mechanism comprises a rack, a connecting rod, a driving frame and a servo motor, the rack is movably arranged at the air guide frame, each of the air guide plates is provided with a gear engaged with the rack, the driving frame is rotationally arranged on the mounting frame, the driving frame is movably provided with an adjusting block, the adjusting mechanism is used for adjusting a position of the adjusting block, one end of the connecting rod is hingedly connected with the rack, the other end of the connecting rod is hingedly connected with the adjusting block, and the servo motor is in transmission connection with the driving frame and drives the driving frame to rotate.

[0007] Preferably, an output end of the servo motor is provided with a worm, and a worm wheel engaged with the worm is arranged on the driving frame.

[0008] Preferably, the adjusting mechanism comprises an adjusting motor and a screw rod, the screw rod is rotationally arranged on the driving frame, a screw hole matched with the screw rod is arranged on the adjusting block, and the adjusting motor is connected with the screw rod and drives the screw rod to rotate.

[0009] Preferably, the material dropping mechanism comprises an electric telescopic rod and a baffle, the baffle is rotationally arranged at the material dropping opening of the material dropping box and used for adjusting an opening size of the material dropping opening, one end of the electric telescopic rod is rotationally connected with the material dropping box, and the other end of the electric telescopic rod is rotationally connected with the baffle.

[0010] Preferably, at least one of the air guide plates is provided with a rotation angle sensor electrically connected with the controller at a rotation connection position of the air guide plate and the air guide frame, and the controller controls working states of the reciprocating mechanism and the adjusting mechanism according to information detected by the rotation angle sensor.

[0011] Preferably, a roller is arranged at a bottom of the mounting frame, a wind cover is arranged on the air guide frame, and the wind cover is detachably connected with an air outlet end of the air blower and used for guiding air flow to the air guide frame.

[0012] Preferably, the wind cover is connected with the air outlet end of the air blower in a bolt fixing mode.

[0013] Preferably, the sand supply mechanism comprises a dust conveying pump, a suction pipe and a feeding pipe, the suction pipe and the feeding pipe are connected with the input end and the output end of the dust conveying pump respectively, the end of the feeding pipe is connected with the upper end of the discharging box, and the controller is electrically connected with the dust conveying pump and controls the working state of the dust conveying pump.

[0014] Preferably, the spraying mechanism is a plurality of spraying pipes connected with pump bodies.

[0015] Compared with the prior art, the present application has the following beneficial effects: Under the control of the controller, the spraying mechanism sprays water droplets downward to realize the simulation of a rainy day environment. Through the cooperation of the fan, the sand supply mechanism and the discharging mechanism, the sand supply mechanism transports dust to the discharging box, the controller controls the discharging mechanism to open the discharging port, the dust falls and is blown by the fan to the car at the test table to simulate a sand-dust environment. The discharging mechanism adjusts the opening size of the discharging port to adjust the amount of sand-dust. The reciprocating mechanism adjusts the direction of the wind deflector to adjust the wind direction, and the reciprocating mechanism also drives the wind deflector to reciprocate synchronously. The controller adjusts the air volume of the fan to realize the simulation of gusts with changing wind direction and wind volume. The sand-dust is blown to the car at the test table by the gusts to simulate various complex sand-dust environments to meet the testing needs of the car in various sand-dust environments. The reciprocating mechanism adjusts the reciprocating angle range of the wind deflector, and the fan blows to realize the simulation of gusts with complex wind direction, which can realize more sand-dust environment simulation to meet the testing needs of the car in various sand-dust environments. In addition, the mounting frame and other equipment on the mounting frame can be removed, the controller controls the fan to cooperate with the spraying mechanism to realize the simulation of a rainy day environment under different wind force and wind direction, and further meet the simulation needs of the car in complex rainy day environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only preferred embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is an internal structure diagram of the test cabin in an embodiment of the present application. Figure 2 It is a structure diagram of the fan and the mounting frame in an embodiment of the present application. Figure 3 It is an internal structure diagram of the fan and the mounting frame in an embodiment of the present application. Figure 4 It is an internal structure diagram of the fan and the mounting frame in an embodiment of the present application.Figure 3 Enlarged view of area A; Figure 5 Structure diagram of mounting frame in some embodiments of the present application; Figure 6 Structure diagram of reciprocating mechanism in some embodiments of the present application; Figure 7 Structure diagram of Figure 6 Enlarged view of area B; Figure 8 Structure diagram of driving frame and adjusting mechanism in some embodiments of the present application.

[0018] In the figure, 1-test cabin; 11-test bench; 12-fan; 13-spraying mechanism; 2-sand supply mechanism; 21-dust conveying pump; 22-extraction pipe; 23-feeding pipe; 3-mounting frame; 31-discharge box; 32-discharge port; 4-discharging mechanism; 41-electric telescopic rod; 42-baffle; 5-air guide frame; 51-air guide plate; 52-gear; 53-fan cover; 6-reciprocating mechanism; 61-rack; 62-linkage; 63-driving frame; 631-worm gear; 632-adjusting block; 64-servo motor; 641-worm; 7-adjusting mechanism; 71-adjusting motor; 72-screw. DETAILED DESCRIPTION

[0019] The technical solutions of the present application are further described in detail below in combination with the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0020] It should be further noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "inner", "outer", "left", "right", and similar expressions used herein are for the purpose of description only and are not intended to be the only implementation.

[0021] The specific embodiments of the present application will be described in detail in this section, the preferred embodiments of the present application are shown in the accompanying drawings, the role of the drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0022] Embodiment 1: With reference to Figures 1 to 8 , the present application provides an environment simulation device for automobile driving test, comprising: a test cabin 1, a test bench 11 for parking a car, a fan 12, a sand supply mechanism 2 and a mounting bracket 3 are arranged in the test cabin 1, a spraying mechanism 13 is arranged on the top of the test cabin 1, the mounting bracket 3 is arranged in front of the blowing end of the fan 12, a discharging box 31 is arranged on the mounting bracket 3, the sand supply mechanism 2 is used for conveying dust to the discharging box 31, a discharging port 32 is arranged at the lower end of the discharging box 31, and the discharging box 31 is provided with a discharging mechanism 4 for adjusting the discharging amount; a wind guide frame 5, the wind guide frame 5 is connected with the discharging port 32 and used for receiving the material at the discharging port 32, the wind guide frame 5 is rotatably provided with a plurality of wind guide plates 51, and a reciprocating mechanism 6 for driving the plurality of wind guide plates 51 to reciprocate is arranged; an adjusting mechanism 7, the adjusting mechanism 7 is arranged on the reciprocating mechanism 6 and used for adjusting the angle range of the reciprocating of the plurality of wind guide plates 51 in cooperation with the reciprocating mechanism 6; a controller, the controller is electrically connected with the fan 12, the sand supply mechanism 2, the spraying mechanism 13, the discharging mechanism 4, the reciprocating mechanism 6 and the adjusting mechanism 7 respectively and controls the working state of each mechanism.

[0023] Under the control of the controller, the spray mechanism 13 is activated to spray water droplets downwards to simulate a rainy environment. Through the cooperation of the fan 12, the sand supply mechanism 2 and the feeding mechanism 4, the sand supply mechanism 2 is activated to transport dust to the material box 31. The controller controls the feeding mechanism 4 to open the drop port 32. The dust falls and is blown towards the car at the test bench 11 by the fan 12 to simulate a sand and dust environment. The feeding mechanism 4 adjusts the amount of sand and dust by adjusting the opening size of the drop port 32. The reciprocating mechanism 6 is used to adjust the direction of several guide vanes 51 to adjust the wind direction. The reciprocating mechanism 6 can also drive several guide vanes 51 to swing back and forth synchronously. With the controller's adjustment of the air volume of the fan 12, the simulation of gusts of wind with changes in wind direction and volume is realized. By blowing sand and dust towards the car at the test bench 11 by gusts, a variety of complex sand and dust environments can be simulated to meet the testing needs of cars in various sand and dust environments. The adjustment mechanism 7 can adjust the reciprocating swing angle range of several air guide plates 51, which, in conjunction with the blowing process of the fan 12, can simulate gusts with complex wind directions and simulate more sand and dust environments, thereby meeting the testing needs of automobiles in various sand and dust environments. In this embodiment, the controller is a PLC controller with an STM32 chip, and its control of the working status of multiple devices is a common technique in the art, which will not be described in detail in this application.

[0024] In some embodiments, the mounting bracket 3, along with other equipment on the mounting bracket 3, can be removed, and the controller can control the fan 12 to work with the spray mechanism 13 to simulate rainy weather environments with different wind forces and wind directions, further meeting the simulation needs of automobiles in rainy weather environments.

[0025] In some embodiments, a heating device controlled by a controller can also be installed at the fan 12 to heat the air and blow the hot air towards the car through the fan 12 to simulate a high-temperature environment.

[0026] In some embodiments, temperature and humidity detection devices can be installed at designated locations in the test chamber 1 to monitor the temperature and humidity environment inside the test chamber 1 in real time, making it easier for operators to observe and record test data.

[0027] Example 2: Reference Figures 1 to 8, in combination with the technical solutions of embodiment 1, in the embodiment, the reciprocating mechanism 6 comprises a rack 61, a connecting rod 62, a driving frame 63 and a servo motor 64, the rack 61 is movably arranged at the air guide frame 5, each air guide plate 51 is provided with a gear 52 engaged with the rack 61, the driving frame 63 is rotatably arranged on the mounting frame 3, the driving frame 63 is movably provided with an adjusting block 632, the adjusting mechanism 7 is used for adjusting the position of the adjusting block 632, one end of the connecting rod 62 is hingedly connected with the rack 61, the other end of the connecting rod 62 is hingedly connected with the adjusting block 632, and the servo motor 64 is in transmission connection with the driving frame 63 and drives the driving frame 63 to rotate. Wherein, the driving frame 63 is provided with a sliding protrusion, and the adjusting block 632 is provided with a mounting groove in sliding fit with the sliding protrusion.

[0028] The servo motor 64 drives the driving frame 63 to rotate, the driving frame 63 drives the connecting rod 62 to swing through the adjusting block 632 during rotation, and the rack 61 is moved reciprocally relative to the air guide frame 5 through the connecting rod 62 during rotation, the rack 61 drives a plurality of air guide plates 51 to swing reciprocally through the gears 52 during reciprocating movement, and the adjustment of the wind direction is realized. Wherein, the adjusting mechanism 7 can adjust the rotation radius of the connecting rod 62 when the driving frame 63 rotates by adjusting the position of the adjusting block 632 relative to the driving frame 63, further adjust the stroke distance of the rack 61 reciprocating movement, realize the reciprocating swing angle range of the plurality of air guide plates 51, cooperate with the blowing process of the fan 12 to realize the gust simulation of the complex wind direction, realize more sand and dust environment simulation, thereby meeting the test requirements of the automobile in various sand and dust environments. Wherein, the controller can adjust the rotation speed of the plurality of air guide plates 51 by controlling the rotation speed of the servo motor 64, and cooperate with the blowing process of the fan 12 to simulate the gust with slow wind direction change, and simulate the gust with fast wind direction change.

[0029] Specifically, the output end of the servo motor 64 is provided with a worm 641, and the driving frame 63 is provided with a worm wheel 631 engaged with the worm 641.

[0030] The servo motor 64 drives the worm 641 to rotate, the worm 641 drives the worm wheel 631 to swing during rotation, the connecting rod 62 is driven to rotate by the adjusting block 632 during rotation of the driving frame 63, and the rack 61 is moved reciprocally relative to the air guide frame 5 through the connecting rod 62, the rack 61 drives a plurality of air guide plates 51 to swing reciprocally synchronously through the gears 52 during reciprocating movement, and the adjustment of the wind direction is realized. By using the reverse locking action of the worm wheel 631 and the worm 641, when the servo motor 64 stops rotating, that is, the worm 641 stops rotating, the plurality of air guide plates 51 are not easy to rotate accidentally, which affects the wind direction adjustment effect, and is beneficial to the stable performance of the test.

[0031] In some embodiments, the servo motor 64 can be in transmission connection with the worm 641 through a speed reducer and drive the worm 641 to rotate, and the speed reducer can increase the torque of the worm 641 to rotate, so that the worm 641 can more easily drive the worm gear 631 to rotate, and the test can be stably performed.

[0032] Further, the adjusting mechanism 7 includes an adjusting motor 71 and a screw rod 72, the screw rod 72 is rotatably installed on the driving frame 63, the adjusting block 632 is provided with a screw hole matched with the screw rod 72, and the adjusting motor 71 is connected with the screw rod 72 and drives the screw rod 72 to rotate.

[0033] The controller controls the working state of the adjusting motor 71, and the adjusting motor 71 drives the screw rod 72 to rotate. The screw rod 72 is matched with the screw hole on the adjusting block 632 to drive the adjusting block 632 to move relative to the driving frame 63, so that the position of the adjusting block 632 is adjusted, the rotating radius of the connecting rod 62 when the driving frame 63 rotates is adjusted, the stroke distance of the rack 61 reciprocating movement is further adjusted, the reciprocating angle range of the plurality of guide vanes 51 is realized, the wind direction is simulated by the wind blowing process of the fan 12, the complex gust simulation can be realized, more sand and dust environment simulation can be realized, and the test requirements of the automobile in various sand and dust environments can be met.

[0034] Embodiment 3: Referring to Figures 1 to 8 In combination with the technical solutions of Embodiment 1 and Embodiment 2, in the embodiment, the discharging mechanism 4 includes an electric telescopic rod 41 and a baffle 42, the baffle 42 is rotatably installed at the discharging opening 32 of the discharging box 31 and is used for adjusting the opening size of the discharging opening 32, one end of the electric telescopic rod 41 is rotatably connected with the discharging box 31, and the other end of the electric telescopic rod 41 is rotatably connected with the baffle 42.

[0035] The controller controls the working state of the electric telescopic rod 41, and when the electric telescopic rod 41 is retracted or stretched, the baffle 42 is driven to rotate relative to the discharging box 31 to adjust the opening size of the discharging opening 32, so that the discharging amount of the dust is adjusted, and the adjustment of the amount of sand and dust in the sand and dust environment simulation is realized.

[0036] In the embodiment, two electric telescopic rods 41 can be used, and the two electric telescopic rods 41 are located on the two sides of the discharging box 31. The two electric telescopic rods 41 are controlled by the controller to perform synchronous telescopic movement to drive the baffle 42 to flip from both sides to perform the dust discharging amount adjustment work.

[0037] In some embodiments, the electric telescopic rod 41 can also be replaced by a pneumatic cylinder or a hydraulic cylinder or other linear driving device.

[0038] Specifically, the at least one deflector 51 is provided with a rotation angle sensor electrically connected to the controller, and the controller controls the working state of the reciprocating mechanism 6 and the adjusting mechanism 7 according to the information detected by the rotation angle sensor.

[0039] By arranging the rotation angle sensor at the rotation connection between the deflector 51 and the deflector frame 5, the controller can control the start and stop of the reciprocating mechanism 6 according to the information of the rotation angle sensor during the reciprocating rotation of the reciprocating mechanism 6 to adjust the wind direction. When the rotation angle sensor detects that the deflector 51 is rotated to a specified angle position, the controller stops the reciprocating mechanism 6 according to the information detected thereby, thereby achieving the angle adjustment of the plurality of deflectors 51.

[0040] In combination with the content of Embodiment 1 and Embodiment 2, the specific implementation of the present embodiment is as follows: The servo motor 64 drives the worm 641 to rotate, and the worm 641 drives the worm gear 631 to swing during rotation, and the driving frame 63 is swung during rotation. The driving frame 63 drives the connecting rod 62 to rotate through the adjusting block 632 during rotation, and drives the rack 61 to reciprocate relative to the deflector frame 5 through the connecting rod 62. The rack 61 reciprocates to drive the plurality of deflectors 51 to synchronously reciprocate through the respective gears 52 during reciprocation. When the rotation angle sensor detects that the deflector 51 is rotated to a specified angle position, the controller stops the servo motor 64 according to the information detected thereby, thereby achieving the angle adjustment of the plurality of deflectors 51.

[0041] In the present embodiment, the rotation angle sensor used is of the type WDA-D35-D4C, and other known rotation angle sensors can also be used in some embodiments.

[0042] Embodiment 4: Referring to Figures 1 to 8 In combination with the technical solutions of Embodiments 1-3, in the present embodiment, the mounting frame 3 is provided at the bottom with a roller, and the deflector frame 5 is provided with a wind cover 53, which is detachably connected to the air outlet end of the fan 12 and is used to guide the airflow to the deflector frame 5.

[0043] When the sand and dust environment simulation is needed, the mounting frame 3 is moved to the position of the fan 12, the fan cover 53 is connected with the fan 12, the mounting between the mounting frame 3 and the fan 12 is realized, the controller is connected with each device, then the fan 12, the sand supply mechanism 2, the discharging mechanism 4, the reciprocating mechanism 6 and the adjusting mechanism 7 are cooperated under the control of the controller, the sand supply mechanism 2 supplies the dust to the discharging box 31, the discharging mechanism 4 opens the discharging port 32, the dust falls and is blown to the car on the test bench 11 by the fan 12, the sand and dust environment simulation is realized, the discharging mechanism 4 adjusts the amount of sand and dust by adjusting the opening size of the discharging port 32, the reciprocating mechanism 6 adjusts the direction of the wind by adjusting the direction of the plurality of wind deflectors 51, and the reciprocating mechanism 6 also drives the plurality of wind deflectors 51 to reciprocate to adjust the air volume of the fan 12, so that the gust simulation of the change of the wind direction and the air volume is realized, the reciprocating angle range of the plurality of wind deflectors 51 is adjusted by the adjusting mechanism 7, and the gust simulation of the more complex wind direction is realized by cooperating with the blowing process of the fan 12, more sand and dust environment simulation can be realized, so that the test requirements of the car in various sand and dust environments are met.

[0044] In some embodiments, a plurality of mounting holes are arranged on the mounting frame 3, and the test cabin 1 is provided with a plurality of pre-installed connecting blocks corresponding to the plurality of mounting holes at corresponding positions. The mounting frame 3 can be fixed on the pre-installed connecting blocks by using bolts or other fasteners passing through the mounting holes, so as to realize the detachable mounting between the mounting frame 3 and the test cabin 1.

[0045] When the fan 12 is needed to cooperate with the spraying mechanism 13 to realize the rain environment simulation under different wind force and wind direction, the mounting frame 3 can be completely removed and moved away, and the entire mounting frame 3 can be installed as needed to realize the complex sand and dust environment simulation and the complex rain environment simulation, so that the flexibility is high, and the environmental simulation requirements of various automobile driving tests can be met.

[0046] Specifically, the fan cover 53 is connected with the air outlet end of the fan 12 in a bolted manner.

[0047] The detachable connection between the fan 12 and the fan cover 53 is realized in a bolted manner, so as to facilitate the assembly and disassembly of the fan 12 and the fan cover 53 according to the needs, and realize the mode switching between the complex sand and dust environment simulation and the complex rain environment simulation.

[0048] Embodiment 5: With reference to Figures 1 to 8 In combination with the technical solutions of embodiments 1-4, in the embodiment, the sand supply mechanism 2 includes a dust conveying pump 21, a material suction pipe 22 and a feeding pipe 23, the material suction pipe 22 and the feeding pipe 23 are connected with the input end and the output end of the dust conveying pump 21 respectively, the end of the feeding pipe 23 is connected with the upper end of the discharging box 31, and the controller is electrically connected with the dust conveying pump 21 and controls the working state of the dust conveying pump 21.

[0049] The controller starts the dust conveying pump 21 to work, the dust conveying pump 21 extracts the powder through the material extraction pipe 22 and conveys to the upper end of the discharging box 31 through the feeding pipe 23 to realize the dust conveying work, and provides raw materials for the sand and dust environment simulation. The material extraction pipe 22 can be connected to a storage tank or a storage tank that stores dust. In some embodiments, the sand supply mechanism 2 composed of the dust conveying pump 21, the material extraction pipe 22 and the feeding pipe 23 can also be replaced by other powder conveying devices commonly used in the prior art.

[0050] In some embodiments, the feeding pipe 23 is detachably connected to the upper end of the discharging box 31 in a flange bolt fastener manner, which facilitates the dismounting of the feeding pipe 23 as needed.

[0051] Specifically, the spraying mechanism 13 is a plurality of spraying pipes connected with a pump body.

[0052] The water body is driven by the pump body to flow to the plurality of spraying pipes and is sprayed out through the spraying pipes to realize the rain simulation, wherein the controller is electrically connected with the pump body and controls the working state of the pump body, so as to adjust the amount of rain sprayed to meet the rain amount adjustment requirement of the rain environment simulation.

[0053] In some embodiments, the spraying mechanism 13 can be composed of a plurality of spraying pipes connected with tap water pipes, and an electric control valve controlled by the controller is arranged on each spraying pipe. The working state of each electric control valve is controlled by the controller to adjust the connectivity of each spraying pipe, so as to adjust the amount of rain sprayed.

[0054] In some embodiments, a sewage discharge channel is arranged at the bottom of the test cabin 1, and a grating plate is arranged above the sewage discharge channel to facilitate the centralized treatment of sewage and dust in the test process.

[0055] The working mode of a preferred embodiment of the present application is as follows: When it is necessary to simulate the sand and dust environment and the rainy environment, first, the sand and dust environment is simulated, the mounting frame 3 is placed at and connected with the fan 12, if necessary, the mounting frame 3 is fixed on the pre-installed connecting block on the test cabin 1, the controller is connected with each electric device, and then the controller, the fan 12, the sand supply mechanism 2, the discharging mechanism 4, the reciprocating mechanism 6 and the adjusting mechanism 7 are cooperated under the control of the controller. The sand supply mechanism 2 conveys the dust to the discharging box 31, the discharging mechanism 4 opens the discharging port 32, the dust falls and is blown to the car at the test bench 11 under the blowing action of the fan 12 to simulate the sand and dust environment, the working state of the electric telescopic rod 41 is controlled by the controller, and the electric telescopic rod 41 is retracted or stretched to drive the baffle 42 to rotate relative to the discharging box 31 to adjust the opening size of the discharging port 32, thereby adjusting the amount of dust falling. The servo motor 64 drives the worm 641 to rotate, and the worm 641 drives the worm gear 631 to rotate during the rotation process, and the driving frame 63 is driven to swing, the driving frame 63 is driven to rotate during the rotation process through the adjusting block 632, and the connecting rod 62 is driven to rotate through the adjusting block 632, and the rack 61 is driven to move back and forth relative to the air guide frame 5 through the connecting rod 62, and the rack 61 is driven to move back and forth, and a plurality of air deflectors 51 are driven to swing synchronously through the gears 52 during the movement back and forth, when the rotation angle sensor detects that the air deflector 51 rotates to a specified angle position, the controller stops the servo motor 64 from working according to the detected information, and the angle adjustment of the plurality of air deflectors 51 is realized, and the adjustment of the air volume of the fan 12 is realized, and the gust simulation of the change of the wind direction and the air volume is realized. The adjusting motor 71 drives the screw rod 72 to rotate, and the screw rod 72 cooperates with the screw hole on the adjusting block 632 to drive the adjusting block 632 to move relative to the driving frame 63, and the position adjustment of the adjusting block 632 is realized, so that the rotation radius of the connecting rod 62 when the driving frame 63 rotates is adjusted, the stroke distance of the rack 61 moving back and forth is further adjusted, the swinging angle range of the plurality of air deflectors 51 is realized, and the gust simulation of the complex wind direction is realized through the blowing process of the fan 12, so that the test requirements of the automobile in various sand environments are met. When the rain environment simulation needs to be carried out subsequently, the connection state between the mounting frame 3 and the fan 12 and the test cabin 1 is released, the mounting frame 3 is removed, the controller starts the pump body to drive the water to flow through the plurality of spray pipes to carry out the rain environment simulation work, the controller can control the spraying amount of the spray pipe through the pump body to realize the adjustment of the rain amount, and the controller can also control the working state of the fan 12, the reciprocating mechanism 6 and the adjusting mechanism 7 to form gusts with different wind forces and wind directions, realize complex rain environment simulation, and further meet the rain environment simulation requirements of the automobile driving test. And in the process of carrying out the rain environment simulation, the simulated rainwater can wash away the dust in the previous sand environment simulation to form sewage and be discharged through the sewage discharge channel, which plays a certain self-cleaning role of the test cabin 1.

[0056] In the application, the electrical connection between the rotating device and the fixed device can be connected by a rotary electrical connector, which is composed of a conductive ring and a brush piece. The use of a rotary electrical connector to realize the electrical connection between the fixed device and the rotating device is a conventional technical means, which will not be described in detail in the application.

[0057] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any skilled person in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical solutions of the present application, without departing from the content of the technical solutions of the present application, shall fall within the protection scope of the technical solutions of the present application.

Claims

1. An environmental simulation device for automobile driving tests, characterized in that, The test cabin is internally provided with a test table for parking a car, a fan, a sand supply mechanism and a mounting rack, a spraying mechanism is arranged on the top of the test cabin, the mounting rack is arranged in front of the blowing end of the fan, a discharging box is arranged on the mounting rack, the sand supply mechanism is used for conveying dust to the discharging box, a discharging opening is arranged at the lower end of the discharging box, and the discharging box is provided with a discharging mechanism for adjusting the discharging amount; A wind guide frame is connected with the discharging opening and used for receiving materials at the discharging opening, a plurality of wind guide plates are rotationally arranged on the wind guide frame, and a reciprocating mechanism for driving the plurality of wind guide plates to reciprocate is arranged; An adjusting mechanism is arranged on the reciprocating mechanism and used for adjusting the angle range of the plurality of wind guide plates reciprocating with the reciprocating mechanism; A controller is electrically connected with the fan, the sand supply mechanism, the spraying mechanism, the discharging mechanism, the reciprocating mechanism and the adjusting mechanism and controls the working states of the mechanisms.

2. The environmental simulation device for automobile driving test according to claim 1, wherein the reciprocating mechanism comprises a rack, a connecting rod, a driving frame and a servo motor, the rack is movably arranged at the wind guide frame, each wind guide plate is provided with a gear engaged with the rack, the driving frame is rotationally arranged on the mounting rack, the driving frame is movably provided with an adjusting block, the adjusting mechanism is used for adjusting the position of the adjusting block, one end of the connecting rod is hingedly connected with the rack, the other end of the connecting rod is hingedly connected with the adjusting block, and the servo motor is in transmission connection with the driving frame and drives the driving frame to rotate.

3. The environmental simulation device for automobile driving test according to claim 2, wherein the output end of the servo motor is provided with a worm, and the driving frame is provided with a worm wheel engaged with the worm.

4. The environmental simulation device for automobile driving test according to claim 2, wherein the adjusting mechanism comprises an adjusting motor and a screw rod, the screw rod is rotationally arranged on the driving frame, the adjusting block is provided with a screw hole matched with the screw rod, and the adjusting motor is connected with the screw rod and drives the screw rod to rotate.

5. The environmental simulation device for automobile driving test according to any one of claims 1-4, wherein the discharging mechanism comprises an electric telescopic rod and a baffle, the baffle is rotationally arranged at the discharging opening of the discharging box and used for adjusting the opening size of the discharging opening, one end of the electric telescopic rod is rotationally connected with the discharging box, and the other end of the electric telescopic rod is rotationally connected with the baffle.

6. The environmental simulation device for automobile driving test according to any one of claims 1-4, wherein at least one wind guide plate rotationally connected with the wind guide frame is provided with a rotation angle sensor electrically connected with the controller, and the controller controls the working states of the reciprocating mechanism and the adjusting mechanism according to the information detected by the rotation angle sensor.

7. The environmental simulation device for automobile driving test according to any one of claims 1-4, wherein ​ ​ ​ ​ ​ ​ The bottom of the mounting frame is provided with a roller, and the air guide frame is provided with a wind cover which is detachably connected with the air outlet end of the fan and is used for guiding airflow to the air guide frame.

8. The environmental simulation device for automobile running test according to claim 7, characterized in that: The wind cover is connected with the air outlet end of the fan in a bolt fixing manner.

9. The environmental simulation device for automobile running test according to any one of claims 1-4, characterized in that: The sand supply mechanism comprises a dust conveying pump, a suction pipe and a feeding pipe, the suction pipe and the feeding pipe are connected with the input end and the output end of the dust conveying pump respectively, the end of the feeding pipe is connected with the upper end of the discharging box, and the controller is electrically connected with the dust conveying pump and controls the working state of the dust conveying pump.

10. The environmental simulation device for automobile running test according to any one of claims 1-4, characterized in that: The spraying mechanism is a plurality of spraying pipes connected with pump bodies.

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