A CVT pulley shaft inner hole runout rapid detection device

Abstract

The present invention belongs to the technical field of inner hole runout detection devices, and in particular, relates to a CVT pulley shaft inner hole runout rapid detection device. It includes an operating table, the operating table is fixedly connected with a fixed block, the fixed block is rotatably connected with a rotating shell, the rotating shell is connected with a first sleeve evenly distributed in the circumferential direction, the first sleeve is slidably connected with a first slide bar, the rotating shell is slidably connected with a first adjusting rod, the operating table is fixedly connected with a fixed frame, the fixed frame is rotatably connected with a rotating ring, the rotating ring is slidably connected with a first brake block, the rotating ring is slidably connected with a first limiter, the operating table is provided with a bracket, and a micrometer is provided on the bracket. The present invention uses the first adjusting rod to transmit the circumferentially evenly distributed first slide bar to fix the part to be measured, and uses the first brake block to fix the first adjusting rod, thereby realizing the rapid fixation of the part to be measured, thereby realizing the rapid detection of inner hole runout.

Description

Technical Field

[0001] The invention relates to the technical field of inner hole runout detection devices, and in particular to a CVT pulley shaft inner hole runout rapid detection device. Background Art

[0002] When CVT gearboxes are produced, it is necessary to detect the inner hole runout of the pulley shaft used therein. The detection of the inner hole runout of the pulley shaft is a quality control method for evaluating the rotation accuracy and position accuracy of the internal hole of shaft parts. It mainly focuses on the fluctuation or deflection degree of the center line of the inner hole of the shaft during one rotation, which involves two aspects: radial circular runout and axial runout. Radial runout refers to the maximum radial offset of each point on the inner hole surface to the ideal center axis when the shaft rotates one circle; axial runout refers to the straightness error of the hole axis along the axial direction, that is, the maximum difference between the two ends of the hole along the axial direction. Usually, radial runout is considered more. When detecting radial runout, a micrometer is often used for detection. When detecting, the part to be tested needs to be fixed, and then the micrometer is fixed so that the probe of the micrometer contacts the inner hole of the part to be tested, and then the part to be tested is rotated to observe the reading of the micrometer. When the existing device is used for detection, after the part to be tested is placed, the bolt needs to be turned to fix the part to be tested, and after the detection is completed, the bolt needs to be turned to release the part to be tested, which is extremely time-consuming and affects the detection efficiency. Summary of the invention

[0003] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a CVT pulley shaft inner hole runout rapid detection device.

[0004] The technical solution of the present invention is: a CVT pulley shaft inner hole jump fast detection device, comprising an operating table, the operating table is fixed with a fixed block, the fixed block is rotatably connected with a rotating shell that penetrates the fixed block, the rotating shell is filled with liquid, the rotating shell is connected with a first sleeve uniformly distributed in the circumferential direction, the first sleeve is slidably connected with a first sliding rod, the rotating shell is slidably connected with a first adjusting rod, the operating table is fixed with a fixed frame, the fixed frame is rotatably connected with a rotating ring on a side away from the fixed block, the rotating ring is rotatably connected with the first adjusting rod, the rotating ring is slidably connected with a first brake block, the first brake block is pressed and frictionally matched with the first adjusting rod, the rotating ring is slidably connected with a first sliding block, the first sliding block is provided with uniformly distributed limiting grooves, a spring and a thin rope are provided between the first sliding block and the first brake block, the rotating ring is slidably connected with a first limiting piece, the first limiting piece is limitedly matched with the limiting groove adjacent to the first sliding block, a tension spring is provided between the first limiting piece and the rotating ring, a bracket is provided on the side of the operating table away from the fixed block, and a micrometer is provided on the bracket.

[0005] As a preferred technical solution of the present invention, a friction block is fixedly connected to a side of the first sliding rod away from the rotating shell, and the friction block is elastic.

[0006] As a preferred technical solution of the present invention, the fixed block is provided with a circumferentially evenly distributed channel, the channel is filled with liquid, the fixed block is provided with a circumferentially evenly distributed second sleeve on the side away from the fixed frame, the second sleeve is connected with an adjacent channel, the second sleeve is slidably connected with a second slide rod, the second slide rod is provided with a first rotating frame on the side away from the fixed block, the first rotating frame is rotatably connected with a roller on the side away from the adjacent second slide rod, the channel connected with the circumferentially evenly distributed second sleeve is slidably connected with a second adjusting rod, and the circumferentially evenly distributed second adjusting rods are commonly fixed with an adjusting plate.

[0007] As a preferred technical solution of the present invention, the adjustment plate is slidably connected to a second brake block, the second brake block is squeezed and frictionally matched with the fixed frame, the adjustment plate is slidably connected to a second sliding block, the second sliding block is provided with evenly distributed limiting grooves, a spring and a thin rope are provided between the second sliding block and the second brake block, the adjustment plate is slidably connected to a second limiting piece on the side close to the second sliding block, the second limiting piece is limitedly matched with the adjacent limiting groove on the second sliding block, and a tension spring is provided between the second limiting piece and the adjustment plate.

[0008] As a preferred technical solution of the present invention, it also includes limiting columns evenly distributed in the circumferential direction, the limiting columns are slidably connected to the adjacent first rotating frame, a spring is arranged between the limiting columns and the adjacent first rotating frame, the first rotating frame is rotatably connected to the adjacent second sliding rod, a torsion spring is arranged between the first rotating frame and the adjacent second sliding rod, and the second sliding rod is provided with a groove cooperating with the adjacent limiting column.

[0009] As a preferred technical solution of the present invention, the first rotating frame is fixedly connected to a first fixed shell, the first fixed shell is slidably connected to a limiting slide rod, liquid is injected between the first fixed shell and the adjacent limiting slide rod, the limiting slide rod is slidably connected to the adjacent first rotating frame, and the limiting slide rod is limitedly matched with the adjacent limiting column.

[0010] As a preferred technical solution of the present invention, the fixed block is fixedly connected with a third sleeve which is evenly distributed in the circumference, the third sleeve is connected with an adjacent channel, the third sleeve is slidably connected with a third slide rod, the third slide rod is rotatably connected with a second rotating frame, the second rotating frame is rotatably connected with a roller on a side away from the adjacent third slide rod, a torsion spring is arranged between the second rotating frame and the adjacent third slide rod, the channel connected with the third sleeve is slidably connected with a third adjusting rod, and the third adjusting rods evenly distributed in the circumference are all fixedly connected to the adjusting plate.

[0011] As a preferred technical solution of the present invention, the evenly distributed second sleeves and the evenly distributed third sleeves are distributed alternately.

[0012] As a preferred technical solution of the present invention, the rollers on the first rotating frame that are evenly distributed in the circumferential direction and the rollers on the second rotating frame that are evenly distributed in the circumferential direction are located on the same circle.

[0013] As a preferred technical solution of the present invention, the third sliding rod is fixedly connected to a second fixed shell, the second fixed shell is slidably connected to an arc-shaped sliding rod fixedly connected to an adjacent second rotating frame, liquid is injected between the arc-shaped sliding rod and the adjacent second fixed shell, and the second fixed shell is connected to the corresponding first fixed shell through a pipeline.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention fixes the part to be measured by transmitting the first sliding rod evenly distributed circumferentially through the first adjusting rod, and fixes the first adjusting rod with the first brake block, thereby achieving rapid fixation of the part to be measured, thereby achieving rapid inner hole runout detection.

[0015] The first rotating frame evenly distributed in the circumferential direction is driven by the adjusting plate to fix the part to be tested, so that the part to be tested is doubly fixed. During the test, the rotation of the part to be tested is more stable and the test result is more accurate.

[0016] The adjustment plate can be quickly fixed by the second stop block, thereby reducing the time required for testing.

[0017] By making the second rotating frame judge whether there is a protrusion on the outer side of the part to be tested, it is determined whether the corresponding first rotating frame should be hard-connected with the adjacent second sliding rod, thereby avoiding the protrusion on the part to be tested contacting the roller on the adjacent first rotating frame, causing the part to be tested to vibrate and affect the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2It is a schematic diagram of the three-dimensional structure of the fixed block and the rotating shell of the present invention;

[0020] Figure 3 It is a three-dimensional structural cross-sectional view of the fixing block of the present invention;

[0021] Figure 4 It is a three-dimensional structural cross-sectional view of the rotating shell of the present invention;

[0022] Figure 5 It is a three-dimensional structural cross-sectional view of the fixing frame and the rotating ring of the present invention;

[0023] Figure 6 It is a three-dimensional structural cross-sectional view of the adjustment plate of the present invention;

[0024] Figure 7 is a three-dimensional structural cross-sectional view of the third sleeve of the present invention;

[0025] Figure 8 It is a three-dimensional structural cross-sectional view of the second sliding rod and the first rotating frame of the present invention;

[0026] Fig. 9 It is a three-dimensional structural cross-sectional view of the limiting column of the present invention;

[0027] Fig.10 It is a three-dimensional structural cross-sectional view of the second rotating frame and the second fixed shell of the present invention.

[0028] Markings in the accompanying drawings: 1: operating table, 2: fixed block, 3: rotating shell, 4: first sleeve, 5: first slide rod, 6: first adjusting rod, 7: fixed frame, 8: rotating ring, 9: first brake block, 10: first sliding block, 11: first limiting member, 12: second sleeve, 13: second slide rod, 14: first rotating frame, 15: second adjusting rod, 16: adjusting plate, 17: second brake block, 18: second sliding block, 19: second limiting member, 20: limiting column, 21: first fixed shell, 22: limiting slide rod, 23: third sleeve, 24: third slide rod, 25: second rotating frame, 26: third adjusting rod, 27: second fixed shell, 28: arc slide rod. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0030] The existing device fixes the part to be tested by turning bolts to tighten it, and after the test is completed, the bolts are turned again to remove the part to be tested. The operation process is cumbersome and the test time is long.

[0031] Embodiment 1: A CVT pulley shaft inner hole runout rapid detection device, such as Figure 1-Figure 5As shown, it includes an operating table 1, a fixed block 2 is fixedly connected to the left side of the operating table 1, and the fixed block 2 is rotatably connected to a rotating shell 3 passing through it, and the rotating shell 3 is filled with liquid. The liquid mentioned here and below is hydraulic oil for transmission, and the rotating shell 3 is connected to three first sleeves 4 evenly distributed in the circumferential direction, and the first sleeve 4 is slidably connected to a first slide bar 5, and the first slide bar 5 is fixedly connected to a friction block on the side away from the rotating shell 3, and the friction block is elastic and is used to fix the part to be measured, and a first adjusting rod 6 is slidably connected to the left side of the rotating shell 3, and a fixed frame 7 is fixedly connected to the left side of the operating table 1, and the fixed frame 7 is composed of a teardrop-shaped plate on the left side and a round rod on the right side, and a rotating ring 8 is rotatably connected to the left side of the teardrop-shaped plate of the fixed frame 7, and the rotating ring 8 is rotatably connected to the first adjusting rod 6, and a first brake block 9 is slidably connected in the rotating ring 8, and the first brake block 9 is squeezed and frictionally matched with the first adjusting rod 6, and a friction material is arranged on the upper side of the first brake block 9, which is used to connect the rotating ring 8 with the first adjusting rod 6, a first sliding block 10 is slidably connected to the lower side of the rotating ring 8, and a uniformly distributed limiting groove is set on the left side of the first sliding block 10, a spring and a thin rope are set between the first sliding block 10 and the first brake block 9, the spring is initially in a compressed state, used to provide a larger initial pressure for the first brake block 9, the thin rope is in a straightened state under the action of the adjacent spring, used to separate the first brake block 9 from the first adjusting rod 6, a first limiting member 11 is slidably connected to the left side of the rotating ring 8, the first limiting member 11 is limitedly matched with the adjacent limiting groove on the first sliding block 10, when the first limiting member 11 is inserted into the adjacent limiting groove on the first sliding block 10, the first sliding block 10 cannot move downward, a tension spring is set between the first limiting member 11 and the rotating ring 8, the tension spring is initially in a stretched state, used to insert the first limiting member 11 into the adjacent limiting groove on the first sliding block 10, a bracket is set on the side of the operating table 1 away from the fixed block 2, and a micrometer is set on the bracket.

[0032] like Figure 3 As shown, the fixed block 2 is provided with ten channels evenly distributed in the circumferential direction, and liquid is filled in the channels. The fixed block 2 is provided with second sleeves 12 evenly distributed in the circumferential direction, and the number of the second sleeves 12 is five or more (five in the figure), and the second sleeves 12 are connected with adjacent channels. The second sleeves 12 are slidably connected with the second slide rod 13, and the side of the second slide rod 13 away from the fixed block 2 is provided with a first rotating frame 14, and the number of the first rotating frames 14 is five or more (five in the figure). When one of the first rotating frames 14 rotates, it is supported by other first rotating frames 14 so that the part to be measured will not shake. The side of the first rotating frame 14 away from the adjacent second slide rod 13 is rotatably connected with a roller, and the roller contacts with the part to be measured and is used to provide support for the part to be measured. The channel connected with the five second sleeves 12 is slidably connected with the second adjusting rod 15, and the five second adjusting rods 15 are commonly fixed with an adjusting plate 16.

[0033] like Figure 5 and Figure 6 As shown, a second brake block 17 is slidably connected inside the adjustment plate 16, and the second brake block 17 is squeezed and frictionally matched with the fixing frame 7. A friction material is arranged on the upper side of the second brake block 17, which is used to fix the adjustment plate 16 and the fixing frame 7 by the second brake block 17. A second sliding block 18 is slidably connected to the lower side of the adjustment plate 16, and the front side of the second sliding block 18 is provided with uniformly distributed limiting grooves. A spring and a thin rope are arranged between the second sliding block 18 and the second brake block 17, and the spring is initially in a compressed state. state, used to provide a larger initial pressure for the second brake block 17. The thin rope is in a stretched state under the action of the adjacent spring, and is used to separate the second brake block 17 from the fixed frame 7. The adjusting plate 16 is slidably connected with a second limit member 19, and the second limit member 19 is limitedly matched with the adjacent limit groove on the second sliding block 18. A tension spring is arranged between the second limit member 19 and the adjusting plate 16. The tension spring is initially in a stretched state, and is used to insert the second limit member 19 into the adjacent limit groove on the second sliding block 18.

[0034] When using the device for detection, first push the adjustment plate 16 to the right, the adjustment plate 16 pushes the five second adjustment rods 15, the second adjustment rods 15 push the liquid in the adjacent channel into the adjacent second sleeve 12, the liquid in the second sleeve 12 increases, and the adjacent second slide bar 13 is pushed to move away from the fixed block 2, take the part to be detected, and put its inner hole around the three first slide bars 5, and then push the first adjustment rod 6 to the right, the first adjustment rod 6 pushes the liquid in the rotating shell 3 into the three first sleeves 4, the liquid in the first sleeve 4 increases, and the adjacent first slide bars 5 are pushed to move, and the three first slide bars 5 drive the adjacent friction blocks to move. The friction block contacts the part to be measured, thereby fixing the part to be measured. At this time, the first sliding block 10 is pushed upward, and the first sliding block 10 moves upward and compresses the adjacent spring. At the same time, the first sliding block 10 squeezes the first limiting member 11 to move left and stretch the adjacent tension spring. The first sliding block 10 pushes the first brake block 9 to move upward through the adjacent spring until it contacts the first adjusting rod 6. When the friction force of the first brake block 9 on the first adjusting rod 6 is sufficient to stop the relative movement between the two, the first sliding block 10 is stopped. At this time, the first limiting member 11 is inserted into the adjacent limiting groove on the first sliding block 10 under the action of the adjacent tension spring.

[0035] After the initial fixation of the part to be measured is completed, the adjustment plate 16 is moved to the left, and the adjustment plate 16 pulls the five second adjustment rods 15 to move. The second adjustment rods 15 suck the liquid in the adjacent second sleeve 12 into the adjacent channel, and the liquid in the second sleeve 12 is reduced. The adjacent second slide bar 13 moves in the direction close to the fixed block 2, and the second slide bar 13 drives the adjacent first rotating frame 14 to move. When the roller on the first rotating frame 14 contacts the part to be measured, the adjustment plate 16 stops moving, and then the second sliding block 18 is pushed upward, and the second slide bar 13 moves in the direction close to the fixed block 2. The moving block 18 moves upward and compresses the adjacent spring. At the same time, the second sliding block 18 squeezes the second limiting member 19 to move forward and stretch the adjacent tension spring. The second sliding block 18 pushes the second brake block 17 to move upward until it contacts the fixed frame 7 through the adjacent spring. When the friction force of the second brake block 17 on the fixed frame 7 is sufficient to stop the relative movement between the two, the second sliding block 18 stops moving. At this time, the second limiting member 19 is inserted into the adjacent limiting groove on the second sliding block 18 under the action of the adjacent tension spring. At this point, the fixation of the part to be measured is completed.

[0036] After the fixing is completed, the bracket is adjusted to make the probe of the micrometer contact with the inner hole of the part to be tested, and then the first adjusting rod 6 is rotated, the first adjusting rod 6 drives the rotating shell 3 to rotate, the rotating shell 3 drives the three first sleeves 4 to rotate, the first sleeves 4 drive the adjacent first sliding rods 5 to rotate, and the first sliding rod 5 drives the part to be tested to rotate through the friction block, so as to detect the part to be tested through the micrometer. After the detection is completed, the first limiter 11 is pulled leftward to release the limit on the first sliding block 10, and then the first sliding block 10 is pulled downward. When the first sliding block 10 is aligned with the first After the thin rope between the brake blocks 9 is straightened, the first sliding block 10 pulls the first brake block 9 to separate from the first adjusting rod 6 through the adjacent thin rope, and then pulls the second limit piece 19 forward to release the limit on the second sliding block 18, and then pulls the second sliding block 18 downward. When the thin rope between the second sliding block 18 and the second brake block 17 is straightened, the second sliding block 18 pulls the second brake block 17 to separate from the fixing frame 7 through the adjacent thin rope, and then pulls the first adjusting rod 6 to the left and pushes the adjusting plate 16 to the right, thereby releasing the fixation of the part to be measured.

[0037] Existing devices mostly fix the parts to be tested on the outside. If the parts to be tested are unqualified during production or impurities are attached to the outside of the parts to be tested, there will be bulges on the outside of the parts to be tested, which will cause the parts to be tested to shake when they are rotated, affecting the accuracy of the inner hole runout detection of the parts to be tested.

[0038] Embodiment 2: Based on embodiment 1, Figure 8 and Fig. 9As shown, it also includes five limit columns 20 evenly distributed in the circumferential direction. The limit columns 20 are composed of a cylinder and a hemisphere. The limit columns 20 are slidably connected to the adjacent first rotating frame 14. A spring is arranged between the limit column 20 and the adjacent first rotating frame 14, and the spring is used to reset the limit column 20. The first rotating frame 14 is rotatably connected to the adjacent second sliding rod 13. A torsion spring is arranged between the first rotating frame 14 and the adjacent second sliding rod 13, and the torsion spring is used to reset the adjacent first rotating frame 14. The second sliding rod 13 is provided with a groove matching with the adjacent limit column 20. When the limit column 20 is inserted into the groove of the adjacent second sliding rod 13, the first rotating frame 14 needs to overcome the resistance of the adjacent limit column 20 when rotating.

[0039] like Figure 8 As shown, a first fixed shell 21 is fixed to the outer side of the first rotating frame 14, and the first fixed shell 21 is slidably connected to a limiting slide bar 22. Liquid is injected between the first fixed shell 21 and the adjacent limiting slide bar 22. The limiting slide bar 22 is slidably connected to the adjacent first rotating frame 14. The limiting slide bar 22 is limited by the adjacent limiting column 20. When the limiting slide bar 22 limits the adjacent limiting column 20, the first rotating frame 14 cannot squeeze the adjacent limiting column 20 and rotate.

[0040] like Figure 2 , Figure 7 and Fig.10 As shown, the fixed block 2 is fixedly connected with a third sleeve 23 uniformly distributed in the circumferential direction, the number of the third sleeve 23 is consistent with the number of the second sleeve 12, five second sleeves 12 and five third sleeves 23 are alternately distributed, the third sleeve 23 is communicated with the adjacent channel, the third sleeve 23 is slidably connected with the third slide bar 24, the third slide bar 24 is rotatably connected with the second rotating frame 25, and there is a certain friction between the second rotating frame 25 and the adjacent third slide bar 24, which is used to delay the reset of the second rotating frame 25, and the second rotating frame 25 rotates away from the side of the adjacent third slide bar 24 A roller is connected, which contacts the part to be tested and is used to determine whether there is a protrusion at the position where the part to be tested contacts the roller on the first rotating frame 14. The five rollers on the first rotating frame 14 and the five rollers on the second rotating frame 25 are located on the same circle, so that the part to be tested is more stable when rotating. A torsion spring is arranged between the second rotating frame 25 and the adjacent third sliding rod 24, and the torsion spring is used to reset the adjacent third sliding rod 24. The channel connected to the third sleeve 23 is slidably connected with the third adjusting rod 26, and the five third adjusting rods 26 are all fixedly connected to the adjusting plate 16.

[0041] like Fig.10As shown, the third slide bar 24 is fixedly connected to an arc-shaped second fixed shell 27, and the second fixed shell 27 is slidably connected to an arc-shaped slide bar 28, and the arc-shaped slide bar 28 is fixedly connected to the adjacent second rotating frame 25. Liquid is injected between the arc-shaped slide bar 28 and the adjacent second fixed shell 27, and the second fixed shell 27 is connected to the corresponding first fixed shell 21 through a pipeline. When the third slide bar 24 rotates, the third slide bar 24 drives the adjacent second fixed shell 27 to move, thereby transmitting the corresponding limit slide bar 22 to move through the liquid in the adjacent arc-shaped slide bar 28.

[0042] When the adjusting plate 16 is moved, the adjusting plate 16 drives the five third adjusting rods 26 to move. The third adjusting rods 26 drive the adjacent third sliding rods 24 to move through the liquid in the adjacent channels. When the adjusting plate 16 moves to the left, the third sliding rods 24 move toward the fixed block 2. When the adjusting plate 16 moves to the right, the third sliding rods 24 move away from the fixed block 2. When the part to be measured contacts the roller on the first rotating frame 14, the roller on the second rotating frame 25 also contacts the part to be measured. Then, the first adjusting rod 6 is rotated clockwise from the left view. When the outer surface of the part to be measured is When the protrusion on the side contacts the roller on the adjacent second rotating frame 25, the protrusion on the part to be tested squeezes the roller on the adjacent second rotating frame 25, the second rotating frame 25 rotates and stores force on the adjacent torsion spring, the second rotating frame 25 drives the adjacent arc-shaped slide bar 28 to rotate, the arc-shaped slide bar 28 slides out of the adjacent second fixed shell 27, the pressure in the second fixed shell 27 decreases, and the liquid in the corresponding first fixed shell 21 is drawn out through the pipeline, the liquid in the first fixed shell 21 decreases, and the adjacent limiting slide bar 22 is driven to move rightward. When the limiting slide bar 22 and the adjacent limiting column When the second rotating frame 25 is separated from the adjacent third sliding bar 24, the limiting slide bar 22 releases the limiting of the adjacent limiting column 20. At this time, the second rotating frame 25 has a friction force with the adjacent third sliding bar 24, so the second rotating frame 25 slowly resets under the action of the adjacent torsion spring. Then, the part to be tested continues to rotate, and the protrusion on it contacts the roller on the adjacent first rotating frame 14. The protrusion squeezes the roller on the first rotating frame 14, causing the first rotating frame 14 to rotate and accumulate force on the adjacent torsion spring. At the same time, the first rotating frame 14 squeezes the adjacent limiting column 20, and the limiting column 20 moves in a direction away from the adjacent second sliding bar 13 and compresses The adjacent spring, at this time, the second rotating frame 25 and its adjacent second fixed shell 27 are about to reset, but because the limiting slide bar 22 presses against the adjacent limiting column 20, they cannot reset. When the protrusion on the part to be measured is separated from the roller on the adjacent first rotating frame 14, the first rotating frame 14 is reset under the action of the adjacent torsion spring. At this time, the limiting column 20 limits the adjacent second slide bar 13 again under the action of the adjacent spring. The second rotating frame 25 drives the adjacent limiting slide bar 22 to limit the adjacent limiting column 20 again under the action of the adjacent torsion spring, thereby avoiding the protrusion on the outside of the part to be measured affecting the detection.

[0043] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A CVT pulley shaft inner hole runout rapid detection device, characterized by: The invention comprises an operating table (1), wherein the operating table (1) is fixedly connected to a fixed block (2), the fixed block (2) is rotatably connected to a rotating shell (3) penetrating the fixed block, the rotating shell (3) is filled with liquid, the rotating shell (3) is connected to a first sleeve (4) uniformly distributed in the circumferential direction, the first sleeve (4) is slidably connected to a first sliding rod (5), the rotating shell (3) is slidably connected to a first adjusting rod (6), the operating table (1) is fixedly connected to a fixed frame (7), the fixed frame (7) is rotatably connected to a rotating ring (8) at a side away from the fixed block (2), the rotating ring (8) is rotatably connected to the first adjusting rod (6), and the rotating ring (8) is slidably connected to a first brake block (9). ), the first brake block (9) and the first adjusting rod (6) are squeezed and frictionally matched, the rotating ring (8) is slidably connected with a first sliding block (10), the first sliding block (10) is provided with evenly distributed limiting grooves, a spring and a thin rope are provided between the first sliding block (10) and the first brake block (9), the rotating ring (8) is slidably connected with a first limiting member (11), the first limiting member (11) is limitedly matched with the adjacent limiting grooves on the first sliding block (10), a tension spring is provided between the first limiting member (11) and the rotating ring (8), and a bracket is provided on the side of the operating table (1) away from the fixed block (2), and a micrometer is provided on the bracket; The fixed block (2) is provided with circumferentially evenly distributed channels, and the channels are filled with liquid. A circumferentially evenly distributed second sleeve (12) is provided on a side of the fixed block (2) away from the fixed frame (7), the second sleeve (12) is communicated with an adjacent channel, the second sleeve (12) is slidably connected to a second slide bar (13), a first rotating frame (14) is provided on a side of the second slide bar (13) away from the fixed block (2), a roller is rotatably connected to a side of the first rotating frame (14) away from the adjacent second slide bar (13), a second adjustment rod (15) is slidably connected to the channel communicated with the circumferentially evenly distributed second sleeve (12), and the circumferentially evenly distributed second adjustment rods (15) are jointly fixedly connected to an adjustment plate (16); The adjusting plate (16) is slidably connected to a second brake block (17), the second brake block (17) is pressed and frictionally matched with the fixing frame (7), the adjusting plate (16) is slidably connected to a second sliding block (18), the second sliding block (18) is provided with evenly distributed limiting grooves, a spring and a thin rope are provided between the second sliding block (18) and the second brake block (17), a second limiting member (19) is slidably connected to a side of the adjusting plate (16) close to the second sliding block (18), the second limiting member (19) is limitedly matched with an adjacent limiting groove on the second sliding block (18), and a tension spring is provided between the second limiting member (19) and the adjusting plate (16).

2. A CVT pulley shaft inner hole runout rapid detection device according to claim 1, characterized in that: A friction block is fixedly connected to a side of the first sliding rod (5) away from the rotating shell (3), and the friction block is elastic.

3. A CVT pulley shaft inner hole runout rapid detection device according to claim 1, characterized in that: It also includes circumferentially evenly distributed limiting columns (20), the limiting columns (20) being slidably connected to the adjacent first rotating frame (14), a spring being arranged between the limiting columns (20) and the adjacent first rotating frame (14), the first rotating frame (14) being rotatably connected to the adjacent second sliding rod (13), a torsion spring being arranged between the first rotating frame (14) and the adjacent second sliding rod (13), and the second sliding rod (13) being provided with a groove cooperating with the adjacent limiting column (20).

4. A CVT pulley shaft inner hole runout rapid detection device according to claim 3, characterized in that: The first rotating frame (14) is fixedly connected to a first fixed shell (21), the first fixed shell (21) is slidably connected to a limiting slide bar (22), liquid is injected between the first fixed shell (21) and the adjacent limiting slide bar (22), the limiting slide bar (22) is slidably connected to the adjacent first rotating frame (14), and the limiting slide bar (22) is limitedly matched with the adjacent limiting column (20).

5. A CVT pulley shaft inner hole runout rapid detection device according to claim 4, characterized in that: The fixed block (2) is fixedly connected to a third sleeve (23) evenly distributed in the circumferential direction, the third sleeve (23) is communicated with an adjacent channel, the third sleeve (23) is slidably connected to a third slide bar (24), the third slide bar (24) is rotatably connected to a second rotating frame (25), the second rotating frame (25) is rotatably connected to a roller at a side away from the adjacent third slide bar (24), a torsion spring is provided between the second rotating frame (25) and the adjacent third slide bar (24), the channel communicated with the third sleeve (23) is slidably connected to a third adjustment rod (26), and the third adjustment rods (26) evenly distributed in the circumferential direction are all fixedly connected to the adjustment plate (16).

6. A CVT pulley shaft inner hole runout rapid detection device according to claim 5, characterized in that: The evenly distributed second sleeves (12) and the evenly distributed third sleeves (23) are alternately distributed.

7. A CVT pulley shaft inner hole runout rapid detection device according to claim 5, characterized in that: The rollers on the first rotating frame (14) that are evenly distributed in the circumferential direction and the rollers on the second rotating frame (25) that are evenly distributed in the circumferential direction are located on the same circle.

8. A CVT pulley shaft inner hole runout rapid detection device according to claim 5, characterized in that: The third sliding rod (24) is fixedly connected to a second fixed shell (27), and the second fixed shell (27) is slidably connected to an arc-shaped sliding rod (28) fixedly connected to an adjacent second rotating frame (25), and liquid is injected between the arc-shaped sliding rod (28) and the adjacent second fixed shell (27), and the second fixed shell (27) is connected to the corresponding first fixed shell (21) through a pipeline.

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