An automated vehicle wind resistance test device

Abstract

An automated vehicle wind resistance test device includes a bracket, a crossbeam, a horizontal moving mechanism, a vertical moving mechanism and an electric winch. The bracket includes a vertical beam, the horizontal moving mechanism connects the crossbeam, the crossbeam is connected to the vertical beam through the vertical moving mechanism, and the vertical moving mechanism drives the crossbeam to move up and down; the horizontal moving mechanism includes a connecting frame, a first rack, a first gear, a first reduction motor, a horizontal guide rail and a first slider. The first rack and the horizontal guide rail are both fixedly connected to the crossbeam, the first slider is fixedly connected to the connecting frame, the first slider is slidably connected to the horizontal guide rail, the axis of the first gear is perpendicular to the crossbeam, the first gear is meshed with the first rack, the first reduction motor is connected to the first gear and drives the first gear to rotate, and the first gear drives the connecting frame to move along the crossbeam; the electric winch is installed on the connecting frame. The present invention can realize automatic adjustment of the pulling point, and belongs to the field of wind resistance testing.

Description

Technical Field

[0001] The invention relates to the field of wind resistance testing, and in particular to an automated whole vehicle wind resistance testing device. Background Art

[0002] The vehicle wind resistance test is an important test in the vehicle test. Standards such as GJB 2093A-2012 "General Test Methods for Military Shelters" provide a wind simulation test method for vehicle equipment (including shelters). When conducting this test, the position of the pulling point needs to be controlled. When adjusting the pulling point, it is usually necessary to climb up, and manual operation is prone to test errors. However, if automated operation is used, due to the large pulling force of the wind resistance test, it is difficult for the general automated structure to control the movement and fixation of the pulling point. A test device specially designed for wind resistance testing is required. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the purpose of the present invention is to provide an automated vehicle wind resistance test device which can automatically control the position of the pulling point.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automated vehicle wind resistance test device, including a bracket, a crossbeam, a horizontal moving mechanism, a vertical moving mechanism and an electric winch, the bracket includes a vertical beam, the horizontal moving mechanism connects the crossbeam, the crossbeam is connected to the vertical beam through the vertical moving mechanism, and the vertical moving mechanism drives the crossbeam to move up and down; the horizontal moving mechanism includes a connecting frame, a first rack, a first gear, a first reduction motor, a horizontal guide rail and a first slider, the first rack and the horizontal guide rail are both fixedly connected to the crossbeam, the first slider is fixedly connected to the connecting frame, the first slider is slidably connected to the horizontal guide rail, the axis of the first gear is perpendicular to the crossbeam, the first gear is meshed with the first rack, the first reduction motor is connected to the first gear and drives the first gear to rotate, and the first gear drives the connecting frame to move along the crossbeam; the electric winch is installed on the connecting frame. After adopting this structure, the electric winch is used to provide the tension required for the wind resistance test, and the electric winch can move up and down and left and right with the horizontal moving mechanism and the vertical moving mechanism to realize automatic adjustment of the pulling point.

[0005] As a preferred embodiment, the invention further comprises a first electromagnet device and a second electromagnet device, wherein the first electromagnet device is fixed on the connecting frame, and the connecting frame attracts the horizontal beam through the first electromagnet device, and the second electromagnet device is fixed on the horizontal beam, and the horizontal beam attracts the vertical beam through the second electromagnet device. After adopting this structure, since both the horizontal beam and the vertical beam are steel structures, the movement and fixation of the pulling point can be effectively controlled by turning on and off the power of the first electromagnet device and the second electromagnet device.

[0006] As a preferred embodiment, it also includes a first laser rangefinder and a second laser rangefinder, wherein the first laser rangefinder is installed on the horizontal beam and the second laser rangefinder is installed on the vertical beam. With this structure, the first laser rangefinder is used to measure the position of the horizontal moving mechanism on the horizontal beam, and the second laser rangefinder is used to measure the position of the vertical moving mechanism on the vertical beam, thereby realizing the monitoring and feedback of the pulling point position and achieving the purpose of precise adjustment.

[0007] As a preferred embodiment, it further includes a first photoelectric switch and a second photoelectric switch, the first photoelectric switch is installed on the horizontal beam, and the second photoelectric switch is installed on the vertical beam; the horizontal beam includes a horizontal moving area, the horizontal moving mechanism moves in the horizontal moving area, the first photoelectric switch is installed at both ends of the horizontal moving area, the vertical beam includes a vertical moving area, the vertical moving mechanism moves in the vertical moving area, and the second photoelectric switch is installed at both ends of the vertical moving area. After adopting this structure, the moving range of the horizontal moving mechanism and the vertical moving mechanism are controlled by the first photoelectric switch and the second photoelectric switch respectively, and the position of the tooling pulling point can be accurately located in conjunction with the laser rangefinder.

[0008] As a preferred embodiment, the horizontal movement mechanism further includes a guide wheel assembly, which includes a guide wheel support and a guide wheel, the guide wheel is rotatably connected to the guide wheel support, the guide wheel support is mounted on the connecting frame, the axis of the guide wheel is vertical, the side of the guide wheel contacts the inner wall of the beam, and when the connecting frame moves, the guide wheel rolls along the inner wall of the beam. With this structure, the guide wheel moves along the inner side of the beam, which can assist in orientation and can bear tension during testing.

[0009] As a preferred embodiment, the guide wheel support is movably connected to the connecting frame, a third adjusting bolt is provided between the guide wheel support and the connecting frame, the third adjusting bolt is threadedly connected to the guide wheel support, the third adjusting bolt has a tail end and a head end, the tail end of the third adjusting bolt abuts the connecting frame, and the tail end of the third adjusting bolt is away from the inner wall of the cross beam relative to the head end. After adopting this structure, a strip through hole is opened on the guide wheel support, and the guide wheel support is installed on the connecting frame by means of a mounting bolt, the mounting bolt passes through the strip through hole and is screwed into the connecting frame, and the strip through hole and the mounting bolt can move relative to each other, so that the guide wheel support can move on the connecting frame. By rotating the third adjusting bolt, the tail end thereof abuts the connecting frame, and the guide wheel is pressed against the inner wall of the cross beam.

[0010] As a preferred embodiment, the cross beam is an I-beam, and the cross beam includes a web, a front wing plate, and a rear wing plate. The web is horizontally arranged and located between the front wing plate and the rear wing plate, and the guide wheel is located between the front wing plate and the rear wing plate. With this structure, the guide wheel is respectively close to the inner wall of the front wing plate and the rear wing plate, and can be accurately oriented.

[0011] As a preferred embodiment, it further comprises a line laser, which is mounted on the connecting frame. After adopting this structure, the line laser is located at the front end of the connecting frame and can be used to control the deflection angle range of the pulling force.

[0012] As a preferred embodiment, the vertical movement mechanism includes a second reduction motor, a second rack, a second gear, a vertical guide rail and a second slider; the second rack and the vertical guide rail are both fixedly connected to the vertical beam, the second slider is fixedly connected to the horizontal beam, the second slider is slidably connected to the vertical guide rail, the second gear is meshed with the second rack, the axis of the second gear is horizontal, the second gear is rotatably connected to the horizontal beam, the second reduction motor is connected to the second gear and drives the second gear to rotate, and the second gear drives the horizontal beam to move up and down. With this structure, the height of the horizontal beam can be accurately controlled.

[0013] As a preferred embodiment, the vertical movement mechanism further includes a first fixing member, a first adjusting bolt, a second fixing member and a second adjusting bolt. The second reduction motor is connected to the second gear through a transmission shaft, the transmission shaft is connected to the crossbeam through a bearing seat, and the second reduction motor is installed on the crossbeam through a motor seat. The first fixing member and the second fixing member are both fixedly connected to the crossbeam, the first adjusting bolt is rotatably connected to the first fixing member, the bearing seat is threadedly connected to the first adjusting bolt, the second adjusting bolt is rotatably connected to the second fixing member, and the motor seat is threadedly connected to the second adjusting bolt. After adopting this structure, the position of the transmission shaft can be adjusted by rotating the first adjusting bolt and the second adjusting bolt, and then the position of the second gear can be adjusted to ensure good meshing transmission between the second gear and the second rack.

[0014] In general, the present invention has the following advantages: the position of the pulling point can be automatically adjusted and the method is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of an automated vehicle wind resistance test device.

[0016] Figure 2 It is a three-dimensional diagram of the connection between the horizontal moving mechanism and the crossbeam.

[0017] Figure 3 It is a three-dimensional diagram of the internal structure of the horizontal moving mechanism.

[0018] Figure 4 This is the internal structure diagram of the horizontal moving mechanism.

[0019] Figure 5 It is a three-dimensional diagram of the connection between the vertical moving mechanism and the crossbeam.

[0020] Figure 6 It is a top view of the vertical moving mechanism, horizontal beams and vertical beams.

[0021] Among them, 1 is a vertical beam, 2 is a horizontal beam, 3 is a horizontal moving mechanism, 4 is a vertical moving mechanism, 5 is an electric winch, 6 is a straight line laser, 7 is a first electromagnet device, and 8 is a second electromagnet device.

[0022] 31 is a connecting frame, 32 is a first rack, 33 is a first gear, 34 is a first reduction motor, 35 is a horizontal guide rail, 36 is a first slider, 37 is a guide wheel, 38 is a guide wheel support, and 39 is a third adjusting bolt.

[0023] 41 is a second rack, 42 ​​is a second gear, 43 is a second reduction motor, 44 is a vertical guide rail, 45 is a second slider, 46 is a motor seat, 47 is a bearing seat, 48 is a first fixing member, and 49 is a second fixing member. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Embodiment 1

[0026] like Figure 1 to Figure 6 As shown, an automated vehicle wind resistance test device includes a bracket, a crossbeam, a horizontal moving mechanism, a vertical moving mechanism and an electric winch. The bracket includes a vertical beam, the horizontal moving mechanism connects the crossbeam, the crossbeam is connected to the vertical beam through the vertical moving mechanism, and the vertical moving mechanism drives the crossbeam to move up and down; the horizontal moving mechanism includes a connecting frame, a first rack, a first gear, a first reduction motor, a horizontal guide rail and a first slider. The first rack and the horizontal guide rail are both fixedly connected to the crossbeam, the first slider is fixedly connected to the connecting frame, the first slider is slidably connected to the horizontal guide rail, the axis of the first gear is perpendicular to the crossbeam, the first gear is meshed with the first rack, the first reduction motor is connected to the first gear and drives the first gear to rotate, and the first gear drives the connecting frame to move along the crossbeam; the electric winch is installed on the connecting frame. After adopting this structure, the electric winch is used to provide the tension required for the wind resistance test, and the electric winch can move up and down and left and right with the horizontal moving mechanism and the vertical moving mechanism to achieve automatic adjustment of the pulling point.

[0027] It also includes a first electromagnet device and a second electromagnet device, wherein the first electromagnet device is fixed to the connecting frame, the connecting frame attracts the horizontal beam through the first electromagnet device, and the second electromagnet device is fixed to the horizontal beam, and the horizontal beam attracts the vertical beam through the second electromagnet device. After adopting this structure, since both the horizontal beam and the vertical beam are steel structures, the movement and fixation of the pulling point can be effectively controlled by turning on and off the power of the first electromagnet device and the second electromagnet device.

[0028] The first laser rangefinder is mounted on the horizontal beam and the second laser rangefinder is mounted on the vertical beam. With this structure, the first laser rangefinder is used to measure the position of the horizontal moving mechanism on the horizontal beam, and the second laser rangefinder is used to measure the position of the vertical moving mechanism on the vertical beam.

[0029] It also includes a first photoelectric switch and a second photoelectric switch, the first photoelectric switch is installed on the horizontal beam, and the second photoelectric switch is installed on the vertical beam; the horizontal beam includes a horizontal moving area, the horizontal moving mechanism moves in the horizontal moving area, the first photoelectric switch is installed at both ends of the horizontal moving area, the vertical beam includes a vertical moving area, the vertical moving mechanism moves in the vertical moving area, and the second photoelectric switch is installed at both ends of the vertical moving area. After adopting this structure, the moving range of the horizontal moving mechanism and the vertical moving mechanism are controlled by the first photoelectric switch and the second photoelectric switch respectively, and the position of the tooling pulling point can be accurately located in conjunction with the laser rangefinder.

[0030] The horizontal movement mechanism also includes a guide wheel assembly, which includes a guide wheel support and a guide wheel. The guide wheel is rotatably connected to the guide wheel support. The guide wheel support is installed on the connecting frame. The axis of the guide wheel is vertical. The side of the guide wheel contacts the inner wall of the beam. When the connecting frame moves, the guide wheel rolls along the inner wall of the beam. After adopting this structure, the guide wheel moves along the inner side of the beam, which can play a role in assisting orientation and can bear tension during testing.

[0031] The guide wheel support is movably connected to the connecting frame, a third adjusting bolt is arranged between the guide wheel support and the connecting frame, the third adjusting bolt is threadedly connected to the guide wheel support, the third adjusting bolt has a tail end and a head end, the tail end of the third adjusting bolt presses against the connecting frame, and the tail end of the third adjusting bolt is away from the inner wall of the beam relative to the head end. After adopting this structure, the tail end of the third adjusting bolt is pressed against the connecting frame by rotating, so that the guide wheel is pressed against the inner wall of the beam.

[0032] The crossbeam is an I-beam, and includes a web, a front wing, and a rear wing. The web is horizontally arranged between the front wing and the rear wing, and the guide wheel is located between the front wing and the rear wing. With this structure, the horizontal guide rail is fixed above the web, and the rack is fixed below the web. Each horizontal moving mechanism includes 8 guide wheel assemblies, four of which are close to the inner wall of the front wing, and the other four are close to the inner wall of the rear wing, which can be accurately oriented.

[0033] It also includes a line laser, which is mounted on the connecting frame. After adopting this structure, the line laser is located at the front end of the connecting frame and can be used to control the deflection angle range of the pulling force.

[0034] The vertical moving mechanism includes a second reduction motor, a second rack, a second gear, a vertical guide rail and a second slider; the second rack and the vertical guide rail are fixedly connected to the vertical beam, the second slider is fixedly connected to the horizontal beam, the second slider is slidably connected to the vertical guide rail, the second gear is meshed with the second rack, the axis of the second gear is horizontal, the second gear is rotatably connected to the horizontal beam, the second reduction motor is connected to the second gear and drives the second gear to rotate, and the second gear drives the horizontal beam to move up and down. With this structure, the height of the horizontal beam can be accurately controlled.

[0035] The vertical movement mechanism also includes a transmission adjustment assembly, which includes a first fixing member, a first adjusting bolt, a second fixing member and a second adjusting bolt. The second reduction motor is connected to the second gear through a transmission shaft, the transmission shaft is connected to the crossbeam through a bearing seat, the second reduction motor is installed on the crossbeam through a motor seat, the first fixing member is fixedly connected to the crossbeam, the first adjusting bolt is rotatably connected to the first fixing member, and the bearing seat is threadedly connected to the first adjusting bolt. After adopting this structure, the position of the second gear is adjusted by the position of the first adjusting bolt and the second adjusting transmission shaft to ensure good meshing transmission between the second gear and the second rack.

[0036] When the above-mentioned automated wind resistance test device is in use, the required position coordinates of the pulling point are first determined, the position coordinates are input into the control system, the first reduction motor and the second reduction motor are started, the horizontal moving mechanism and the vertical moving mechanism are moved respectively, and after moving to the target position, the first electromagnet device and the second electromagnet device are energized to fix the pulling point, the straight line laser is turned on, and the pulling angle deviation is judged by the laser.

[0037] The above embodiments are preferred implementation modes of the invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An automated vehicle wind resistance test device, characterized in that: It includes a bracket, a crossbeam, a horizontal moving mechanism, a vertical moving mechanism and an electric winch, wherein the bracket includes a vertical beam, the horizontal moving mechanism is connected to the crossbeam, the crossbeam is connected to the vertical beam through the vertical moving mechanism, and the vertical moving mechanism drives the crossbeam to move up and down; The horizontal movement mechanism includes a connecting frame, a first rack, a first gear, a first reduction motor, a horizontal guide rail and a first slider. The first rack and the horizontal guide rail are both fixedly connected to the crossbeam. The first slider is fixedly connected to the connecting frame. The first slider is slidably connected to the horizontal guide rail. The axis of the first gear is perpendicular to the crossbeam. The first gear is meshed with the first rack. The first reduction motor is connected to the first gear and drives the first gear to rotate. The first gear drives the connecting frame to move along the crossbeam. The electric winch is installed on the connecting frame. The electric winch provides the pulling force required for the wind resistance test. The electric winch moves up and down and left and right with the horizontal moving mechanism and the vertical moving mechanism to achieve automatic adjustment of the pulling point. It also includes a first electromagnet device and a second electromagnet device. The first electromagnet device is fixed on the connecting frame, and the connecting frame attracts the crossbeam through the first electromagnet device. The second electromagnet device is fixed on the crossbeam, and the crossbeam attracts the vertical beam through the second electromagnet device.

2. An automated vehicle wind resistance test device according to claim 1, characterized in that: It also includes a first laser rangefinder and a second laser rangefinder. The first laser rangefinder is installed on the horizontal beam, and the second laser rangefinder is installed on the vertical beam.

3. An automated vehicle wind resistance test device according to claim 1, characterized in that: It also includes a first photoelectric switch and a second photoelectric switch, the first photoelectric switch is installed on the horizontal beam, and the second photoelectric switch is installed on the vertical beam; the horizontal beam includes a horizontal moving area, the horizontal moving mechanism moves in the horizontal moving area, the first photoelectric switch is installed at both ends of the horizontal moving area, the vertical beam includes a vertical moving area, the vertical moving mechanism moves in the vertical moving area, and the second photoelectric switch is installed at both ends of the vertical moving area.

4. The automatic vehicle wind resistance test device according to claim 1, characterized in that: The horizontal moving mechanism also includes a guide wheel assembly, which includes a guide wheel support and a guide wheel. The guide wheel is rotatably connected to the guide wheel support. The guide wheel support is installed on the connecting frame. The axis of the guide wheel is vertical. The side of the guide wheel contacts the inner wall of the beam. When the connecting frame moves, the guide wheel rolls along the inner wall of the beam.

5. An automated vehicle wind resistance test device according to claim 4, characterized in that: The guide wheel support is movably connected to the connecting frame, and a third adjusting bolt is provided between the guide wheel support and the connecting frame. The third adjusting bolt is threadedly connected to the guide wheel support, and the third adjusting bolt has a tail end and a head end. The tail end of the third adjusting bolt supports the connecting frame, and the tail end of the third adjusting bolt is away from the inner wall of the beam relative to the head end.

6. An automated vehicle wind resistance test device according to claim 4, characterized in that: The crossbeam is an I-beam, and includes a web, a front wing plate, and a rear wing plate. The web is horizontally arranged and located between the front wing plate and the rear wing plate, and the guide wheel is located between the front wing plate and the rear wing plate.

7. An automated vehicle wind resistance test device according to claim 1, characterized in that: It also includes a word line laser, which is installed on the connection frame.

8. An automated vehicle wind resistance test device according to claim 1, characterized in that: The vertical moving mechanism includes a second reduction motor, a second rack, a second gear, a vertical guide rail and a second slide block; The second rack and the vertical guide rail are fixedly connected to the vertical beam, the second slider is fixedly connected to the cross beam, the second slider is slidably connected to the vertical guide rail, the second gear is meshed with the second rack, the axis of the second gear is horizontal, the second gear is rotationally connected to the cross beam, the second reduction motor is connected to the second gear and drives the second gear to rotate, and the second gear drives the cross beam to move up and down.

9. An automated vehicle wind resistance test device according to claim 8, characterized in that: The vertical moving mechanism also includes a first fixing member, a first adjusting bolt, a second fixing member and a second adjusting bolt. The second reduction motor is connected to the second gear through a transmission shaft, the transmission shaft is connected to the crossbeam through a bearing seat, and the second reduction motor is installed on the crossbeam through a motor seat; the first fixing member and the second fixing member are both fixedly connected to the crossbeam, the first adjusting bolt is rotatably connected to the first fixing member, the bearing seat is threadedly connected to the first adjusting bolt, the second adjusting bolt is rotatably connected to the second fixing member, and the motor seat is threadedly connected to the second adjusting bolt.

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