Driving wheel adjustable testing machine

Abstract

The utility model discloses a testing machine with an adjustable driving wheel, which relates to the technical field of wheel rotating speed detection and comprises a base, a detection device and a positioning device, the detection device is positioned above the base and used for detecting the rotating speed of the wheel, and the positioning device is positioned at the upper end part of the base and used for positioning the detected wheel. The upper end portion of the base is provided with a lifting piece used for driving the detection device to move in the vertical direction, arc-shaped plates are fixedly arranged at the upper end portion of the base and located under the detection device, the upper end portion of the base is provided with a driving piece used for driving the arc-shaped plates to move in the vertical direction, and a plurality of rollers are rotationally connected between the two arc-shaped plates. One side, far away from the roller, of any arc-shaped plate is fixedly provided with a driving device used for driving the roller to rotate, the positioning device comprises a plurality of positioning rods, and the positioning rods are located in the positioning holes of the detection wheel during detection and used for positioning the detection wheel. The wheel rotating speed detection method has the effect of improving the wheel rotating speed detection convenience.

Description

Technical Field

[0001] The utility model relates to the field of wheel speed detection technology, in particular to a driving wheel adjustable testing machine. Background Art

[0002] At present, wheel speed detection is one of the important detection methods in mechanical engineering, transportation, industrial automation and scientific research. Its application scope includes vehicle speed monitoring, machine equipment operation status evaluation and rotating machinery performance testing.

[0003] For related technologies, reference may be made to the Chinese patent application with the announcement number CN220961562U, which discloses a vehicle wheel speed detection device, comprising a base, the upper end of the base being fixedly connected to a support plate, the upper end of the base being slidably connected to a support frame, the outer side of the support plate being threadedly connected to a rotating screw having one end penetrating the support plate and rotatably connected to the support frame, the inner bottom wall of the support frame being rotatably connected to an adjusting screw having one end penetrating and extending to the outer side of the support frame, the outer side of the adjusting screw being threadedly connected to a movable plate, and the upper end of the movable plate being provided with a detection assembly. The vehicle wheel speed detection device, through the cooperation of a turntable and a push rod, can push or stretch the push rod located on the mounting frame after the rotating turntable drives the inclined rod to rotate, so that the push rod can be adjusted accordingly according to wheels of different specifications to adapt to wheels of different specifications for detection, thereby improving the adaptability of the entire device.

[0004] Regarding the aforementioned related technologies, wheel speed detection requires stretching a lever to secure the wheel, then turning the motor to drive the wheel to complete the speed measurement. When replacing the test wheel, it is necessary to manually lift the test wheel to align it with the turntable, adjust the angle of the test wheel to align it with the lever, and then align the lever with the positioning hole on the test wheel. This process is time-consuming and inconvenient. Utility Model Content

[0005] In order to facilitate the detection of wheel speed, the present application provides a testing machine with an adjustable driving wheel.

[0006] This application provides a testing machine with adjustable driving wheels, which adopts the following technical solutions:

[0007] A testing machine with an adjustable driving wheel includes a base, a detection device and a positioning device. The detection device is located above the base and is used to detect the wheel rotation speed. The positioning device is located at the upper end of the base and is used to position the detection wheel. The upper end of the base is provided with a lifting member for driving the detection device to move vertically. The upper end of the base is provided with two arc-shaped plates, which are arranged in parallel and are located directly below the detection device. The upper end of the base is provided with a driving member for driving the arc-shaped plates to move vertically. Several rollers are rotatably connected between the two arc-shaped plates to drive the detection wheel to rotate to a specified angle. A driving device is fixed on the side of any arc-shaped plate away from the roller to drive the roller to rotate. The positioning device includes several positioning rods. During detection, the positioning rods are located in the positioning holes of the detection wheel to position the detection wheel.

[0008] By adopting the above technical solution, when detecting the wheel speed, the detection wheel is placed on the drum, the driving device drives the drum to rotate and then drives the detection wheel to rotate, the driving part drives the arc plate to rise and fall vertically, the positioning rod on the positioning device positions the detection wheel, and the lifting part controls the detection device so that the detection device is fitted with the detection wheel. The positioning process does not require manual control, which improves the convenience of wheel speed detection.

[0009] Optionally, the two curved plates are vertically hinged with a first guide rod on one side away from the roller, and a cylinder is hinged on the side of the curved plate away from the roller. The cylinder is located directly below the first guide rod, and the cylinder output shaft is hinged to the end of the first guide rod away from the curved plate. A second guide rod is fixed to the end of the first guide rod away from the curved plate, and a limit rod is fixed to the end of the second guide rod away from the first guide rod. The limit rod is tilted from bottom to top along the direction of the second guide rod pointing to the curved plate.

[0010] By adopting the above technical solution, the cylinder output shaft is extended, the first guide rod moves away from one end of the arc plate and approaches the arc plate, and the second guide rod drives the limit rod to interfere with the detection wheel. When the detection wheel rotates to a preset angle, the limit rod limits the detection wheel, further improving the convenience of wheel speed detection.

[0011] Optionally, the limiting rod includes a spring telescopic rod, which is used to position the detection wheel.

[0012] By adopting the above technical solution, when the spring telescopic rod collides with the detection wheel, the spring telescopic rod is compressed, which is beneficial to reducing the damage of the spring telescopic rod to the detection wheel and improving the stability of wheel speed detection.

[0013] Optionally, the positioning device also includes two moving blocks, two third connecting rods, two rings and several threaded telescopic rods. The two moving blocks are respectively located on both sides of the base along the length direction, and are slidably connected to the base in the direction of approaching or moving away from each other. The moving blocks and the third connecting rod correspond one to one. The third connecting rod is rotatably connected to the side of the moving block close to the center of the base and is arranged along the horizontal direction. The threaded telescopic rod and the positioning rod correspond one to one. The ring is sleeved on the outside of the third connecting rod and rotates coaxially with the third connecting rod. Several threaded telescopic rods are evenly distributed along the circumference of the ring and are arranged radially along the ring. The positioning rod is vertically fixed to the side of the threaded telescopic rod away from the third connecting rod and is arranged in the direction of the third connecting rod pointing to the ring.

[0014] By adopting the above technical solution, the two moving blocks are close to each other, the ring and the third connecting rod rotate coaxially, and the threaded telescopic rod is used to move the positioning rod to the positioning hole of the detection wheel. The positioning process does not require manual control, which improves the convenience of wheel speed detection.

[0015] Optionally, a sliding groove is provided laterally at one end of the positioning rod away from the moving block, and two sliders are provided in the sliding groove. The two sliders slide along the length direction of the sliding groove. The two sliders are hinged to a fixed rod at one end away from the moving block, and the two fixed rods are hinged to the same rectangular block at one end away from the slider. A cross bar is fixed on the side where the two sliders are away from each other, and an arc-shaped piece is fixed on the end of the cross bar away from the slider for fitting with the aperture of the detection wheel.

[0016] By adopting the above technical solution, when the positioning hole of the detection wheel is large, the two rectangular blocks contact and squeeze each other, the fixed rod pushes the slider to move to both sides of the sliding groove along the length direction, and the cross bar drives the arc-shaped piece to fit with the positioning hole of the detection wheel, thereby improving the stability during the wheel speed detection process.

[0017] Optionally, the detection device includes a rotating motor, two driving wheels and a telescopic part. The rotating motor is horizontally arranged and fixedly connected to the lifting part. The telescopic part is fixedly connected to the output shaft of the rotating motor and is arranged in a horizontal direction. The two driving wheels are fixedly connected to the outside of the telescopic part. The telescopic part is used to drive the two driving wheels closer to or away from each other.

[0018] By adopting the above technical solution, the rotating motor drives the telescopic part to rotate, the telescopic part and the driving wheel rotate coaxially, the lifting part drives the driving wheel to fit with the detection wheel, and the rotation of the driving wheel drives the detection wheel to rotate, thereby improving the convenience of wheel speed detection.

[0019] Optionally, the telescopic member includes a first connecting rod, a second connecting rod and a threaded rod, the first connecting rod is fixedly connected to the output shaft of the rotating motor, a threaded groove is opened on the side of the first connecting rod away from the rotating motor, the second connecting rod has a threaded hole along the length direction, the threaded rod is rotatably connected to the first connecting rod, the threaded rod passes through the threaded hole and fits into the inside of the threaded groove.

[0020] By adopting the above technical solution, the threaded rod can be rotated to move the first connecting rod closer to or farther away from each other to adapt to detection wheels of different sizes, thereby improving the convenience of wheel speed detection.

[0021] Optionally, a plurality of rectangular rods are fixed to the end of the first connecting rod away from the rotating motor, and a plurality of rectangular tubes are fixed to the end of the second connecting rod close to the first connecting rod. The rectangular tubes and the rectangular rods correspond one to one. The rectangular rods are located inside the rectangular tubes and slide along the length direction of the rectangular tubes. Fixing bolts are provided between the rectangular rods and the rectangular tubes. The fixing bolts pass through the rectangular rods and the rectangular tubes and are threadedly connected.

[0022] By adopting the above technical solution, the rectangular rod and the rectangular tube are used to limit the first connecting rod and the second connecting rod, thereby improving the stability of wheel speed detection.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By rotating the threaded rod, the first connecting rod and the second connecting rod can be moved closer or further away from each other to adapt to detection wheels of different sizes, improving the convenience of wheel speed detection;

[0025] 2. As the cylinder output shaft extends, the end of the first guide rod away from the curved plate moves closer to the curved plate. The second guide rod drives the limit rod to contact the detection wheel. When the detection wheel rotates to a preset angle, the limit rod limits the detection wheel, further improving the convenience of wheel speed detection.

[0026] 3. The two rectangular blocks contact and squeeze each other, the fixed rod pushes the slider to move to both sides of the sliding groove along the length direction, and the cross bar drives the arc piece to fit with the positioning hole of the detection wheel, thereby improving the stability during the wheel speed detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a schematic diagram of the overall structure of a testing machine with an adjustable driving wheel.

[0028] Figure 2 It is a schematic diagram intended to highlight the connection method between the first guide rod and the curved plate.

[0029] Figure 3 It is a schematic diagram intended to highlight the structure of the positioning device.

[0030] Figure 4 It is a diagram intended to highlight how the rectangular blocks and sliders are connected.

[0031] Figure 5 It is a schematic diagram intended to highlight the structure of the telescopic member.

[0032] Explanation of reference signs: 1, base; 11, lifting piece; 12, driving piece; 13, arc-shaped plate; 131, first guide rod; 132, air cylinder; 133, second guide rod; 134, limiting rod; 135, spring telescopic rod; 14, roller; 15, driving device; 2, detection device; 21, rotary motor; 22, driving wheel; 23, telescopic piece; 231, first connecting rod; 232, second connecting rod; 233, threaded rod; 234, threaded groove; 235, threaded hole; 236, rectangular cylinder; 237, rectangular rod; 3, positioning device; 31, moving block; 32, third connecting rod; 33, circular ring; 34, threaded telescopic rod; 35, positioning rod; 351, sliding groove; 352, sliding block; 353, fixed rod; 354, rectangular block; 355, cross rod; 356, arc-shaped piece. DETAILED DESCRIPTION

[0033] The application will be further described in detail below with reference to all the accompanying drawings.

[0034] The application discloses a testing machine with adjustable driving wheels. EMBODIMENT

[0035] Reference Figure 1 and Figure 2 The application discloses a testing machine with adjustable driving wheels, which comprises a base 1, a detection device 2 and a positioning device 3. The detection device 2 is located above the base 1 and is used for detecting the rotating speed of a detection wheel. The positioning device 3 is located at the upper end of the base 1 and is used for positioning the detection wheel. The upper end of the base 1 is provided with two arc-shaped plates 13, which are arranged in parallel. The upper end of the base 1 is provided with a driving piece 12, which is used for driving the arc-shaped plates 13 to move vertically. A plurality of rollers 14 are rotationally connected between the two arc-shaped plates 13. The arc-shaped plates 13 are provided with a driving device 15, which is used for driving the rollers 14 to rotate. When the detection wheel is detected, the detection wheel is placed between the two arc-shaped plates 13 and is in contact with the rollers 14. All the rollers 14 support the detection wheel. The driving device 15 drives the rollers 14 to rotate and further drives the detection wheel to rotate. The driving piece 12 lifts the arc-shaped plates 13 to a specified height, thereby improving the convenience of wheel rotating speed detection.

[0036] Reference Figure 2The first guide rod 131 is hinged to the side of the two curved plates 13 away from the roller 14, and the first guide rod 131 is horizontally arranged. The side of the curved plate 13 away from the roller 14 is hinged to a cylinder 132. The cylinder 132 pushes the first guide rod 131 away from the end of the curved plate 13 to move closer to the curved plate 13. The end of the first guide rod 131 away from the curved plate 13 is fixed with a second guide rod 133. The end of the second guide rod 133 away from the first guide rod 131 is fixed with a limit rod 134. The output shaft of the cylinder 132 extends, driving the end of the first guide rod 131 away from the curved plate 13 to move closer to the curved plate 13, and the second guide rod 133 drives the limit rod 134 to contact the detection wheel. The limit rod 134 includes a spring telescopic rod 135. When the positioning hole of the detection wheel rotates to the bottom of the curved plate 13, the spring telescopic rod 135 is located in the positioning hole, so as to position the detection wheel, thereby improving the convenience of wheel speed detection.

[0037] Reference Figure 3 The positioning device 3 also includes two moving blocks 31, two third connecting rods 32, two rings 33 and multiple threaded telescopic rods 34. The two moving blocks 31 are respectively located on both sides of the base 1 along the length direction. The two moving blocks 31 can approach or move away from each other, and the third connecting rod 32 is rotatably connected to the side of the moving block 31 close to the center of the base 1 and is arranged horizontally. The ring 33 is sleeved on the outside of the third connecting rod 32, and the ring 33 rotates coaxially with the third connecting rod 32. The threaded telescopic rod 34 is evenly arranged along the circumference of the ring 33 and is radially arranged along the ring 33. The threaded telescopic rod 34 is used to move the positioning rod 35 to a specified position. The positioning rod 35 is fixedly connected to the side of the threaded telescopic rod 34 away from the third connecting rod 32. The two moving blocks 31 approach each other so that the positioning rod 35 approaches the detection wheel. The threaded telescopic rod 34 is telescoped to align the positioning rod 35 with the positioning hole on the detection wheel. The two moving plates continue to approach, and the positioning rod 35 is located in the positioning hole to position the detection wheel.

[0038] Reference Figure 4 When the cam 352 is in the unlocked position, the locking cam 353 is locked and the locking cam 354 is unlocked, so the cam 352 can be unlocked easily.

[0039] Reference Figure 1 and Figure 5 , a lifting member 11 is provided at the upper end of the base 1, and the lifting member 11 is used to drive the detection device 2 to rise and fall vertically. The detection device 2 includes a rotating motor 21, two driving wheels 22 and a telescopic member 23. The rotating motor 21 is horizontally arranged and fixedly connected to the lifting member 11. The rotating motor 21 is used to drive the telescopic member 23 to rotate. The two driving wheels 22 are sleeved on the outside of the telescopic member 23 and rotate coaxially with the telescopic member 23. The rotation of the driving wheel 22 drives the detection wheel to rotate. The telescopic member 23 includes a first connecting rod 231, a second connecting rod 232 and a threaded rod 233. The threaded rod The rod 233 can drive the first connecting rod 231 and the second connecting rod 232 to move closer to or away from each other. A threaded groove 234 is provided on the side of the first connecting rod 231 away from the rotating motor 21, and a threaded hole 235 is provided along the length direction of the second connecting rod 232. The threaded rod 233 is rotatably connected to the first connecting rod 231. The threaded rod 233 passes through the threaded hole 235 and fits into the inside of the threaded groove 234. Rotating the threaded rod 233 can make the first connecting rod 231 and the second connecting rod 232 move closer to or away from each other to adapt to detection wheels of different sizes, thereby improving the convenience of wheel speed detection.

[0040] Reference Figure 5 A plurality of rectangular rods 237 are fixedly provided at one end of the first connecting rod 231 away from the rotating motor 21, and a plurality of rectangular tubes 236 are fixedly provided at one end of the second connecting rod 232 close to the first connecting rod 231. The rectangular rods 237 are fitted with the inner wall of the rectangular tube 236 and slide along the length direction of the rectangular tube 236. The rectangular rods 237 and the rectangular tube 236 are connected by fixing bolts. The rectangular rods 237 and the rectangular tube 236 are used to limit the first connecting rod 231 and the second connecting rod 232, thereby improving the stability of the wheel speed detection.

[0041] The implementation principle of the test machine with an adjustable driving wheel in the embodiment of the present application is as follows: the detection wheel is placed above the roller 14, the driving device 15 drives the roller 14 to rotate, the driving part 12 lifts the detection wheel to the specified position, the output shaft of the cylinder 132 is extended, the spring telescopic rod 135 positions the detection wheel, the movable plates approach each other, the threaded telescopic rod 34 is extended and retracted so that the positioning rod 35 is located in the positioning hole of the detection wheel, the lifting part 11 lifts the driving wheel 22 to fit with the detection wheel, and the rotating motor 21 drives the driving wheel 22 to rotate, thereby causing the detection wheel to rotate, thereby improving the convenience of wheel speed detection.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A testing machine with an adjustable driving wheel, comprising a base (1), a detection device (2) and a positioning device (3), wherein the detection device (2) is located above the base (1) and is used to detect the wheel rotation speed, and the positioning device (3) is located at the upper end of the base (1) and is used to position the detection wheel, characterized in that: The upper end of the base (1) is provided with a lifting member (11) for driving the detection device (2) to move vertically. The upper end of the base (1) is provided with two arc-shaped plates (13). The two arc-shaped plates (13) are arranged in parallel and are located directly below the detection device (2). The upper end of the base (1) is provided with a driving member (12) for driving the arc-shaped plates (13) to move vertically. A plurality of rollers (14) are rotatably connected between the two arc-shaped plates (13) for driving the detection wheel to rotate to a specified angle. A driving device (15) is fixedly provided on a side of any arc-shaped plate (13) away from the roller (14) for driving the roller (14) to rotate. The positioning device (3) includes a plurality of positioning rods (35). During detection, the positioning rods (35) are located in the positioning holes of the detection wheel for positioning the detection wheel.

2. The driving wheel adjustable testing machine according to claim 1, characterized in that: The two arc-shaped plates (13) are both hingedly connected to a first guide rod (131) on one side away from the roller (14) in a vertical direction. The arc-shaped plate (13) is hingedly connected to a cylinder (132) on one side away from the roller (14). The cylinder (132) is located directly below the first guide rod (131). The output shaft of the cylinder (132) is hingedly connected to one end of the first guide rod (131) away from the arc-shaped plate (13). A second guide rod (133) is fixedly provided at one end of the first guide rod (131) away from the arc-shaped plate (13). A limiting rod (134) is fixedly provided at one end of the second guide rod (133) away from the first guide rod (131). The limiting rod (134) is tilted from bottom to top along the second guide rod (133) in the direction pointing to the arc-shaped plate (13).

3. The driving wheel adjustable testing machine according to claim 2, characterized in that: The limiting rod (134) comprises a spring telescopic rod (135), and the spring telescopic rod (135) is used to position the detection wheel.

4. The driving wheel adjustable testing machine according to claim 1, characterized in that: The positioning device (3) further comprises two moving blocks (31), two third connecting rods (32), two rings (33) and a plurality of threaded telescopic rods (34). The two moving blocks (31) are respectively located on both sides of the base (1) along the length direction and are slidably connected with the base (1) in a direction of approaching or moving away from each other. The moving blocks (31) and the third connecting rods (32) correspond to each other one by one. The third connecting rod (32) is rotatably connected to the side of the moving block (31) close to the center of the base (1) and moves along the length direction. The invention is arranged in a horizontal direction, the threaded telescopic rod (34) and the positioning rod (35) correspond to each other one by one, the ring (33) is sleeved on the outside of the third connecting rod (32) and rotates coaxially with the third connecting rod (32), a plurality of threaded telescopic rods (34) are evenly distributed along the circumference of the ring (33) and are arranged radially along the ring (33), and the positioning rod (35) is vertically fixed to the side of the threaded telescopic rod (34) away from the third connecting rod (32) and is arranged in a direction along the third connecting rod (32) pointing to the ring (33).

5. The driving wheel adjustable testing machine according to claim 4, characterized in that: The end of the positioning rod (35) away from the moving block (31) is provided with a sliding groove (351) in the horizontal direction, and two sliders (352) are provided in the sliding groove (351). The two sliders (352) slide along the length direction of the sliding groove (351). The ends of the two sliders (352) away from the moving block (31) are hinged to a fixed rod (353), and the ends of the two fixed rods (353) away from the sliders (352) are hinged to the same rectangular block (354). A cross bar (355) is fixed on the side of the two sliders (352) away from each other, and an arc piece (356) is fixed on the end of the cross bar (355) away from the sliders (352) for fitting with the aperture of the detection wheel.

6. The driving wheel adjustable testing machine according to claim 1, characterized in that: The detection device (2) comprises a rotating motor (21), two driving wheels (22) and a telescopic member (23); the rotating motor (21) is arranged horizontally and fixedly connected to the lifting member (11); the telescopic member (23) is fixedly connected to the output shaft of the rotating motor (21) and arranged in the horizontal direction; the two driving wheels (22) are fixedly connected to the outside of the telescopic member (23); and the telescopic member (23) is used to drive the two driving wheels (22) to move closer to or farther away from each other.

7. The driving wheel adjustable testing machine according to claim 6, characterized in that: The telescopic member (23) comprises a first connecting rod (231), a second connecting rod (232) and a threaded rod (233). The first connecting rod (231) is fixedly connected to the output shaft of the rotating motor (21). A threaded groove (234) is provided on a side of the first connecting rod (231) away from the rotating motor (21). A threaded hole (235) is provided along the length direction of the second connecting rod (232). The threaded rod (233) is rotatably connected to the first connecting rod (231). The threaded rod (233) passes through the threaded hole (235) and fits inside the threaded groove (234).

8. The driving wheel adjustable testing machine according to claim 7, characterized in that: A plurality of rectangular rods (237) are fixedly provided at one end of the first connecting rod (231) away from the rotating motor (21); a plurality of rectangular tubes (236) are fixedly provided at one end of the second connecting rod (232) close to the first connecting rod (231); the rectangular tubes (236) and the rectangular rods (237) correspond one to one; the rectangular rods (237) are located inside the rectangular tubes (236) and slide along the length direction of the rectangular tubes (236); a fixing bolt is provided between the rectangular rods (237) and the rectangular tubes (236); the fixing bolt passes through the rectangular rods (237) and the rectangular tubes (236) and is threadedly connected.

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