An intelligent frame strength testing device

Abstract

The invention discloses an intelligent frame strength testing device, which belongs to the technical field of motorcycle frame testing. The front rotating shaft hole and the rear extension frame of the frame are respectively fixed by support rods, and the mobile platform is adaptively adjusted so that the frame is located above the base, and the test can be started. At this time, the inner cylinder rotates under the drive of the motor, and the support rollers located outside the inner cylinder are supported on the lower side of the top plate to simulate the frame moving on the road. The radial distance of the slide on the inner cylinder can be adjusted by loosening the screws that fix the slide. This device can simulate the influence of different bump frequencies and bump amplitudes on the moving motorcycle frame, and has high adjustment flexibility. Through the movement of the mobile platform and the rotation of the support rod, it can adapt to motorcycle frames of different models and structures, and through the adjustable support roller height and density of the inner cylinder, different bump conditions can be simulated, and it has strong scientific research and testability.

Description

Technical Field

[0001] The invention belongs to the technical field of motorcycle frame testing, and in particular relates to an intelligent frame strength testing device. Background Art

[0002] A motorcycle is a two-wheeled means of transportation. It is convenient and has good accessibility. It is a common means of transportation in cities and rural areas. The internal support structure of a motorcycle is mainly composed of a frame, which is assembled with wheels, forks, shells and other structures to form a complete body. The strength of the frame is an important indicator of the service life and safety of the motorcycle. Existing frame strength testing devices are all one-to-one testing devices with low adaptability, resulting in large investment in the testing devices and large space occupation. In addition, existing frame strength tests are difficult to simulate the bumpy conditions of actual road conditions and are difficult to adjust, making it difficult to obtain frame strength test data. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an intelligent frame strength testing device, which is adaptable to frames of different models and has strong adjustability to various bumpy road conditions.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention includes a base, a moving platform is slidably provided on both sides of the base, a driving simulation part is provided on the moving platform, the driving simulation part includes an inner cylinder rotatably arranged on the side of the moving platform, a plurality of sliding sheets are arranged around the array on the side of the inner cylinder, the sliding sheets slide radially along the inner cylinder, a plurality of positioning through holes are provided on the sliding sheets along the sliding direction, the end surface of the inner cylinder is threadedly connected with screws for fixing the through holes, a supporting roller is rotatably provided on the sliding sheets, the driving simulation part also includes a top plate located above the inner cylinder, the top plate is supported on the supporting roller on the upper side of the inner cylinder, a sliding column is provided on the moving platform, the top plate is vertically slidably provided on the sliding column, two of the top plates are respectively hinged with support rods, the upper ends of the support rods are respectively connected with the rotating shaft hole in front of the frame and the extension frame at the rear with a front fixing part and a rear fixing part.

[0006] Furthermore, the bottom surface of the top plate is an arc surface wrapped around the outer side of the support roller in the upper half of the inner cylinder, and transition surfaces extend outwardly from both sides of the bottom surface of the top plate.

[0007] Furthermore, the support rod comprises two sections of an upper rod body and a lower rod body, the upper rod body and the lower rod body are slidably arranged with respect to each other, and a spring is supported between the upper rod body and the lower rod body.

[0008] Furthermore, the front fixing part includes an inner column coaxially threadedly connected to the upper end of the support rod, a baffle is provided at the lower end of the inner column, and a locking nut is threadedly connected to the upper end. The inner column passes through the front rotating shaft of the frame, and the locking nut fixes the rotating shaft.

[0009] Furthermore, the rear fixing part includes a coupling seat threadedly connected to the upper end of the support rod, and the coupling seat is provided with two pairs of fixing tubes for two extension frames at the rear of the frame to pass through, and the fixing tubes are externally threadedly connected with locking studs, and the locking studs are inserted into the inner side of the fixing tubes, and the inner end of the locking studs is provided with a head for clamping the extension frame.

[0010] Furthermore, it also includes a load-bearing simulation part, which includes a hydraulic cylinder fixed on the base, and the output end of the hydraulic cylinder is connected to a pressure seat, and the pressure seat is located above the fixed frame.

[0011] The beneficial effects of the present invention are:

[0012] The present invention is used to perform fatigue strength tests on motorcycle frames under various road conditions; Figure 1 When testing this frame, the front shaft hole and the rear extension frame of the frame are fixed by the support rods respectively, and the mobile platform is adjusted to make the frame above the base, and the test can be started. At this time, the inner cylinder rotates under the drive of the motor, and the support roller located outside the inner cylinder is supported on the lower side of the top plate to simulate the frame moving on the road. Among them, by loosening the screws that fix the slide, the radial distance of the slide on the inner cylinder can be adjusted. After adjustment, it is fixed by screws. The radial distances of several support rollers relative to the inner cylinder can be adjusted, so that this device can simulate the influence of different bump frequencies and bump amplitudes on the moving motorcycle frame. This device has high adjustment flexibility. Through the movement of the mobile platform and the rotation of the support rod, it can adapt to motorcycle frames of different models and structures, and through the adjustable support roller height and density of the inner cylinder, it can simulate different bump conditions, which has strong scientific research and testing properties.

[0013] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0015] Figure 1 It is an overall schematic diagram of a vehicle frame strength testing device according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0017] Figure 3 for Figure 1A magnified schematic diagram of point B

[0018] Figure 4 It is a cross-sectional view of the fixed cylinder of an embodiment of the present invention;

[0019] Figure 5 It is a front view of a vehicle frame strength testing device according to an embodiment of the present invention;

[0020] Figure 6 for Figure 5 An enlarged schematic diagram of point C;

[0021] The markings in the attached drawings are as follows: 1. base; 2. moving platform; 21. sliding column; 3. driving simulation part; 31. inner cylinder; 32. sliding plate; 321. positioning through hole; 322. screw; 33. support roller; 34. top plate; 341. arc surface; 342. transition surface; 35. support rod; 351. upper rod body; 352. lower rod body; 353. spring; 36. front fixing part; 361. inner column; 362. baffle; 363. locking nut; 37. rear fixing part; 371. joint seat; 372. fixing cylinder; 373. locking stud; 374, butt; 4. load-bearing simulation part; 41. hydraulic cylinder; 42. pressure seat; 5. frame; 51. shaft hole; 52. extension frame. DETAILED DESCRIPTION

[0022] like Figures 1 to 6 As shown, the present invention discloses an intelligent frame strength testing device, including a base 1, which is composed of a support frame and a protective shell. The base 1 is mainly used for support. A moving platform 2 is slidably arranged on both sides of the base 1. The moving direction of the moving platform 2 is horizontal. The moving platform 2 is driven by a telescopic device such as an electric cylinder. A driving simulation part 3 is arranged on the moving platform 2. Figure 1 , Figure 5 and Figure 6As shown, the driving simulation part 3 includes an inner cylinder 31 rotatably arranged on the side of the moving platform 2, the inner cylinder 31 is driven to rotate by a motor, a plurality of slides 32 are arranged in an array around the side of the inner cylinder 31, the slides 32 are in the shape of long strips, the slides 32 slide along the radial direction of the inner cylinder 31, a plurality of positioning through holes 321 are provided on the slides 32 along the sliding direction, the end surface of the inner cylinder 31 is threadedly connected with screws 322 for fixing the through holes, a support roller 33 is rotatably arranged on the slide 32, and a plurality of support rollers 33 are arranged in an array around the outer side of the inner cylinder 31 to form an outer support structure of the driving simulation part 3. The driving simulation part 3 also includes a top plate 34 located above the inner cylinder 31, and the top plate 34 is supported on a support roller 33 on the upper side of the inner cylinder 31. The mobile platform 2 is also provided with a vertical slide column 21, and the top plate 34 is vertically slidably arranged on the slide column 21. Ball bearings and other components can be arranged between the slide column 21 and the top plate 34 to ensure smooth sliding of the top plate 34. Support rods 35 are respectively hinged on the two top plates 34. The upper ends of the support rods 35 are respectively connected to the rotating shaft hole 51 in front of the frame 5 and the extension frame 52 at the rear with a front fixing part 36 and a rear fixing part 37, as shown in FIG. Figure 2 The front fixing portion 36 includes an inner column 361 coaxially threadedly connected to the upper end of the support rod 35, a baffle 362 is provided at the lower end of the inner column 361, and a locking nut 363 is threadedly connected to the upper end. The inner column 361 passes through the front shaft of the frame 5, and the locking nut 363 fixes the shaft. Figure 3 and Figure 4 The rear fixing portion 37 includes a coupling seat 371 threadedly connected to the upper end of the support rod 35, and the coupling seat 371 is provided with two fixing tubes 372 for two extension frames 52 at the rear of the frame 5 to pass through. The fixing tube 372 is externally threadedly connected with a locking stud 373, and the locking stud 373 penetrates into the inner side of the fixing tube 372. The inner end of the locking stud 373 is provided with a butt head 374 for clamping the extension frame 52.

[0023] This device is used to perform fatigue strength tests on motorcycle frames 5 under various road conditions; Figure 1When testing the frame 5, the front shaft hole 51 and the rear extension frame 52 of the frame 5 are fixed respectively by the support rod 35, and the mobile platform 2 is adaptively adjusted so that the frame 5 is located above the base 1, and the test can be started. At this time, the inner cylinder 31 rotates under the drive of the motor, and the support roller 33 located outside the inner cylinder 31 is supported on the lower side of the top plate 34 to simulate the frame 5 moving on the road. Among them, by loosening the screw 322 for fixing the slide 32, the radial distance of the slide 32 on the inner cylinder 31 can be adjusted, and after adjustment, it is fixed by the screw 322. The radial distances of several support rollers 33 relative to the inner cylinder 31 can be adjusted, so that this device can simulate the influence of different bump frequencies and bump amplitudes on the moving motorcycle frame 5. This device has high adjustment flexibility. Through the movement of the mobile platform 2 and the rotation of the support rod 35, it can adapt to motorcycle frames 5 of different models and structures. Through the adjustable support roller 33 height and density of the inner cylinder 31, different bumpy conditions can be simulated, and it has strong scientific research and testability.

[0024] In a further solution, Figure 5 and Figure 6 As shown, the bottom surface of the top plate 34 is an arc surface 341 wrapped around the outer side of the support roller 33 in the upper half of the inner cylinder 31, and transition surfaces 342 extend outwardly from both sides of the bottom surface of the top plate 34.

[0025] In this scheme, the bottom surface of the top plate 34 is provided with an arc surface 341 wrapped around the outside of the support roller 33, that is, when several support rollers 33 are located at the same radial position, the relative distance between the movement of the support roller 33 and the top plate 34 will not change, so as to better simulate the flat road condition, and then by adjusting the radial distance of the support roller 33, the bumpy road condition can be simulated more scientifically and practically, wherein the transition surface 342 can assist the protruding support roller 33 to enter the bottom plate plane, and the setting of the arc surface 341 and the transition surface 342 makes the test effect of this test device more realistic.

[0026] In a further solution, Figure 1 As shown, the support rod 35 includes two sections of an upper rod body 351 and a lower rod body 352 . The upper rod body 351 and the lower rod body 352 are slidably arranged with respect to each other, and a spring 353 is supported between the upper rod body 351 and the lower rod body 352 .

[0027] In this solution, the support rod 35 is set as an elastic telescopic structure to simulate the shock-absorbing structure of a motorcycle, thereby further improving the authenticity of the test device.

[0028] In a further solution, Figure 1 and Figure 5As shown, it also includes a load-bearing simulation part 4, which includes a hydraulic cylinder 41 fixed on the base 1, and the output end of the hydraulic cylinder 41 is connected to a pressure seat 42, the outer layer of the pressure seat 42 can be wrapped with an anti-collision film, and the pressure seat 42 is located above the fixed frame 5.

[0029] In this solution, by setting the load-bearing simulation part 4, the hydraulic cylinder 41 presses down the pressure seat 42, and the pressure seat 42 presses down the frame 5, so that the frame 5 simulates the pressure of drivers of different weights on the frame 5 during driving. This mechanism also further improves the authenticity of this test device.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An intelligent frame strength testing device, characterized in that: The invention comprises a base (1), wherein both sides of the base (1) are slidably provided with moving platforms (2), the moving platforms (2) are provided with a driving simulation unit (3), the driving simulation unit (3) comprises an inner cylinder (31) rotatably arranged on the side of the moving platform (2), a plurality of slides (32) are arranged in an array around the side of the inner cylinder (31), the slides (32) slide radially along the inner cylinder (31), a plurality of positioning through holes (321) are provided on the slides (32) along the sliding direction, the end surface of the inner cylinder (31) is threadedly connected with screws (322) for fixing the through holes, a support roller (33) is rotatably provided on the slides (32), and the driving simulation unit (3) further comprises a A top plate (34), the top plate (34) being supported on a support roller (33) on the upper side of the inner cylinder (31), a slide column (21) being provided on the movable platform (2), the top plate (34) being vertically slidably mounted on the slide column (21), support rods (35) being hingedly connected to the two top plates (34), the upper ends of the support rods (35) being connected to a rotating shaft hole (51) in front of the vehicle frame (5) and an extension frame (52) in the rear, respectively, with a front fixing portion (36) and a rear fixing portion (37); the bottom surface of the top plate (34) is in the form of an arc surface (341) wrapped around the outer side of the support roller (33) in the upper half of the inner cylinder (31), and transition surfaces (342) extending outwardly from both sides of the bottom surface of the top plate (34).

2. The intelligent frame strength testing device according to claim 1, characterized in that: The support rod (35) comprises two sections of an upper rod body (351) and a lower rod body (352); the upper rod body (351) and the lower rod body (352) are slidably arranged with respect to each other, and a spring (353) is supported between the upper rod body (351) and the lower rod body (352).

3. The intelligent frame strength testing device according to claim 1, characterized in that: The front fixing portion (36) comprises an inner column (361) coaxially threadedly connected to the upper end of the support rod (35); a baffle (362) is provided at the lower end of the inner column (361); a locking nut (363) is threadedly connected to the upper end; the inner column (361) passes through a rotating shaft in front of the vehicle frame (5); and the locking nut (363) fixes the rotating shaft.

4. The intelligent frame strength testing device according to claim 1, characterized in that: The rear fixing portion (37) comprises a coupling seat (371) threadedly connected to the upper end of the support rod (35); the coupling seat (371) is provided with two fixing tubes (372) for two extension frames (52) at the rear of the frame (5) to pass through; the fixing tubes (372) are externally threadedly connected with locking studs (373); the locking studs (373) are inserted into the inner side of the fixing tubes (372); and the inner ends of the locking studs (373) are provided with abutment heads (374) for clamping the extension frames (52).

5. The intelligent frame strength testing device according to claim 1, characterized in that: It also comprises a load-bearing simulation part (4), the load-bearing simulation part (4) comprising a hydraulic cylinder (41) fixedly mounted on the base (1), the output end of the hydraulic cylinder (41) being connected to a pressure seat (42), the pressure seat (42) being located above the fixed vehicle frame (5).

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