Multifunctional gear detection equipment

Abstract

A gear multifunctional detection device disclosed by the present invention comprises a detection table, the upper end of the detection table is fixedly connected with two fixed plates, the adjacent sides of the two fixed plates are jointly provided with a side surface detection assembly, and the side surface detection assembly comprises a detection box fixed on the two fixed plates. Detection blocks are connected in the two detection boxes in a sealed and sliding mode, the two detection blocks are elastically connected with the inner walls of the corresponding detection boxes through second springs, a compression box is fixedly connected to the upper end of the detection table, and two compression grooves are formed in the compression box. The equipment can detect the side size and the surface flatness of the gear more quickly, so that the gear detection efficiency is greatly improved, whether the distances between the opposite sides of the gear and the axis are the same or not can be detected, meanwhile, whether the side sizes are the same or not can be observed more easily through an amplification assembly, and meanwhile, through arrangement of a rotating handle, the detection efficiency is improved. And the surface flatness of gears with different thicknesses can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of gear detection, and in particular to a multifunctional gear detection device. Background Art

[0002] Gears are mechanical components with teeth on the rim that can continuously mesh to transmit motion and power. During the gear production process, it is usually necessary to test the inner diameter, outer diameter and flatness of the gear end face.

[0003] First of all, the prior art usually lacks efficient and accurate detection equipment when inspecting the side of the gear. The prior art mostly uses vernier calipers to detect the side of the gear. This detection method can only detect whether the diameter of the gear meets the requirements, but cannot detect whether there is any deviation on the side of the gear. In the process of gear production, there may be some very slight deviations on the side of the gear due to the production process. The existing detection means may not be able to accurately detect the slight changes and differences on the side of the gear, and it is difficult to ensure the accuracy requirements of the side of the gear. At the same time, when the prior art detects the flatness of the gear surface, most of the spirit levels are used for detection, and the placement of the spirit levels is mostly done manually, resulting in low gear detection efficiency. Therefore, it is necessary to design a multifunctional gear detection device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a multifunctional gear detection device, which can detect the side dimensions and surface flatness of the gear more quickly, thereby greatly improving the detection efficiency of the gear, and can detect whether the distances between the relative sides of the gear and the axis are the same. At the same time, through the magnifying component, it is easier to observe whether the side dimensions are the same. At the same time, through the setting of the handle, the surface flatness of gears of different thicknesses can be detected.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multifunctional gear detection device comprises a detection platform, wherein the upper end of the detection platform is fixedly connected to two fixed plates, and adjacent sides of the two fixed plates are commonly provided with a side detection component, wherein the side detection component comprises a detection box fixed on the two fixed plates, and detection blocks are sealed and slidably connected in the two detection boxes, and the two detection blocks are elastically connected to the inner walls of the corresponding detection boxes through a second spring, and a compression box is fixedly connected to the upper end of the detection platform, and two compression grooves are provided in the compression box, and the front spaces of the two compression grooves are connected to the two detection boxes through a connecting pipe, and round rods are sealed and slidably connected in the two compression grooves, and protrusions are fixedly connected on the right sides of the two round rods, and an amplification component is provided on the detection platform, and the amplification component is used to amplify the difference of the detection results.

[0007] Preferably, the amplification component includes a fixed block fixed on the detection table, the front side of the fixed block is fixedly connected to two electric cylinders, the telescopic ends of the two electric cylinders are commonly fixedly connected to the bearing table, the upper end of the bearing table is fixedly connected to an amplification box, two cavities are provided in the amplification box, the left inner walls of the two cavities are rotatably connected to the first rotating shaft and the second rotating shaft, the two first rotating shafts are provided with a third gear, the two first rotating shafts are provided with a second gear, the two third gears are meshed with the corresponding second gears, the upper ends of the two protrusions are fixedly connected to a connecting rod, the rear sides of the two connecting rods are fixedly connected to a first rack, the two first racks extend into the cavity and mesh with the second gear, the amplification box is provided with two circular grooves, the left sides of the two circular grooves are provided with scale lines, the right sides of the two first rotating shafts extend into the circular grooves and are fixedly connected with pointers, the detection table is fixedly connected to a second slide rail, and the bearing table is slidably connected to the second slide rail.

[0008] Preferably, it also includes a horizontal detection component, which includes two side plates arranged on the upper end of the detection platform, the adjacent sides of the two side plates are commonly fixedly connected with two first slide rails, the two first slide rails are slidably connected with sliding blocks, the lower ends of the two sliding blocks are commonly fixedly connected with a rectangular plate, the lower ends of the two rectangular plates are fixedly connected with telescopic rods, the telescopic ends of the two telescopic rods are fixedly connected with U-shaped blocks, the left and right inner walls of the two U-shaped blocks are commonly fixedly connected with elastic ropes, the upper end of the detection platform is fixedly connected with two pneumatic rods, the telescopic ends of the two pneumatic rods are fixedly connected with L-shaped rods, the adjacent sides of the two side plates are commonly rotated with a screw rod, the screw rod passes through the rectangular plate, and the rectangular plate is threadedly connected to the screw rod.

[0009] Preferably, a turning handle is rotatably connected to the rectangular plate, and two threaded rods are rotatably connected to the lower end of the rectangular plate. Threaded sleeves are threadedly connected to the two threaded rods, and the lower ends of the two threaded sleeves are fixedly connected to the corresponding U-shaped blocks. The two threaded rods are connected to the turning handle via a second transmission assembly.

[0010] Preferably, the second transmission assembly includes a second sprocket arranged on the handlebar and two threaded rods, the three second sprockets are connected by a second chain transmission, and the radius of the second sprocket on the handlebar is twice the radius of the other two second sprockets.

[0011] Preferably, two connecting blocks are fixedly connected to the detection platform, and adjacent sides of the two connecting blocks are rotatably connected with a short rod, the right side of the short rod passes through the corresponding connecting block, and a first gear is provided on the short rod, and a second rack is fixedly connected to the supporting platform, and the second rack is meshed with the first gear. The front side of the screw rod passes through the corresponding side plate, and two mounting blocks are fixedly connected to the side plate located on the front side, and the two mounting blocks are rotatably connected with a transmission rod together, and the transmission rod and the screw rod are provided with bevel gears meshing with each other, and the transmission rod and the short rod are transmission-connected through a first transmission assembly.

[0012] Preferably, the first transmission assembly includes a first sprocket wheel arranged on the transmission rod and the short rod, and the two first sprocket wheels are connected by a first chain transmission.

[0013] Preferably, a vertical rod is fixedly connected to the upper end of the detection table, and a plurality of sliding boxes are provided on the outer side of the vertical rod. The plurality of sliding boxes are distributed in a circular array, and positioning blocks are slidably connected inside the plurality of sliding boxes. The plurality of positioning blocks are elastically connected to the inner wall of the corresponding sliding box through a second spring, and the upper ends of the plurality of positioning blocks are all arc surfaces.

[0014] The present invention has the following beneficial effects:

[0015] 1. Compared with the prior art, by setting the detection box and the detection block, when the gear is placed on the detection table, the distance between the side of the gear and the axis can be detected, so that the outer diameter of the gear can be detected more quickly and efficiently, which greatly improves the detection efficiency of the gear;

[0016] 2. Compared with the prior art, by setting two L-shaped rods and elastic ropes, after the gear is placed, the two elastic ropes are driven to move by the screw rod, and the flatness of the gear surface is detected by observing whether the elastic rope passes through the L-shaped rod;

[0017] 3. Compared with the prior art, the handlebar can be used to adjust the height of the two elastic ropes when testing the surface flatness of the gear, so that the elastic ropes can contact the surfaces of gears with different thicknesses, thereby enabling the gear to test the surface flatness of gears with different heights;

[0018] 4. Compared with the prior art, by setting up the amplification component, when detecting the outer diameter of the gear, the values ​​of the two sides can be amplified, so that the staff can more easily observe whether the distances between the relative sides of the gear and the axis are the same, thereby improving the accuracy of the gear detection results.

[0019] In summary, the equipment has significant advantages in gear detection. Through the detection box and the detection block, it can quickly and efficiently detect whether the outer diameter of the gear is qualified, thereby improving the detection efficiency. By using two L-shaped rods and elastic ropes, combined with a screw rod, the surface flatness of the gear can be detected. It can be judged by observing whether the elastic rope passes through the L-shaped rod. At the same time, it can adapt to the surface flatness detection of gears of different thicknesses. In addition, the magnification component can amplify the value of the gear side, which is convenient for the staff to observe whether the distance between the relative side and the axis is the same, thereby improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a multifunctional gear detection device proposed by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0022] Figure 3 for Figure 1 The right side structural diagram of ;

[0023] Figure 4 for Figure 3 A partial enlarged view of the

[0024] Figure 5 It is a schematic diagram of the structure of the amplified component;

[0025] Figure 6 It is a structural schematic diagram of the side detection component;

[0026] Figure 7 for Figure 5 Half-section of

[0027] Figure 8 It is a structural diagram of the positioning component.

[0028] In the figure: 1 detection table, 2 fixed plate, 3 first slide rail, 4 side plate, 5 sliding block, 6 handle, 7 rectangular plate, 8 pneumatic rod, 9 L-shaped rod, 10 magnifying box, 11 transmission rod, 12 mounting block, 13 bevel gear, 14 connecting pipe, 15 compression box, 16 first transmission assembly, 17 telescopic rod, 18 second transmission assembly, 19 threaded rod, 20 threaded sleeve, 21 U-shaped block, 22 elastic rope, 23 screw rod, 24 first rack, 25 round rod, 26 fixed block, 27 electric cylinder, 28 bearing platform, 29 connecting block, 30 second rack, 31 first gear, 32 short rod, 33 connecting rod, 34 protrusion, 35 first rotating shaft, 36 pointer, 37 compression groove, 38 second rotating shaft, 39 second gear, 40 third gear, 41 first spring, 42 second slide rail, 43 detection box, 44 detection block, 45 second spring, 46 vertical rod, 47 sliding box, 48 positioning block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Reference Figure 1-Figure 8 A multifunctional gear detection device includes a detection platform 1, the upper end of the detection platform 1 is fixedly connected to two fixed plates 2, and the adjacent sides of the two fixed plates 2 are jointly provided with a side detection component, and the side detection component includes a detection box 43 fixed on the two fixed plates 2, and the two detection boxes 43 are sealed and slidably connected with detection blocks 44, and the two detection blocks 44 are elastically connected to the inner wall of the corresponding detection box 43 through a second spring 45. When the electric cylinder 27 contracts, the first rack 24 and the round rod 25 will be moved backward first, so that the gas in the detection box 43 enters the compression groove 37. When the detection block 44 is reset, the elastic action of the second spring 45 will cause the detection block 44 to be The blocks 44 move more and more away from each other, so that the round rod 25 and the first rack 24 no longer move. At this time, the second gear 39 will drive the third gear 40 to rotate, and the pointer 36 is reset. The upper end of the detection platform 1 is fixedly connected with a compression box 15, and two compression grooves 37 are arranged in the compression box 15. The front space of the two compression grooves 37 is connected with the two detection boxes 43 through the connecting pipe 14. The two compression grooves 37 are sealed and slidably connected with the round rod 25, and the right sides of the two round rods 25 are fixedly connected with the protrusion 34. An amplification component is provided on the detection platform 1, and the amplification component is used to amplify the difference of the detection result, so that the staff can judge whether the side size of the gear is qualified.

[0031] The amplifying assembly includes a fixed block 26 fixed on the detection table 1, and two electric cylinders 27 are fixedly connected to the front side of the fixed block 26. The telescopic ends of the two electric cylinders 27 are fixedly connected to the bearing platform 28. The upper end of the bearing platform 28 is fixedly connected to the amplifying box 10. Two cavities are arranged in the amplifying box 10. The left inner walls of the two cavities are rotatably connected to the first rotating shaft 35 and the second rotating shaft 38. The two first rotating shafts 35 are each provided with a third gear 40. The two first rotating shafts 35 are each provided with a second gear 39. The radius of the second gear 39 is greater than the radius of the third gear 40, so that the moving distance of the first rack 24 is smaller. When the two pointers 36 rotate, the angles of rotation are larger, the two third gears 40 mesh with the corresponding second gears 39, the upper ends of the two protrusions 34 are fixedly connected with the connecting rods 33, the rear sides of the two connecting rods 33 are fixedly connected with the first racks 24, the two first racks 24 extend into the cavity and mesh with the second gears 39, the magnifying box 10 is provided with two circular grooves, the left sides of the two circular grooves are provided with scale lines, the right sides of the two first rotating shafts 35 extend into the circular grooves and are fixedly connected with the pointers 36, the second slide rail 42 is fixedly connected to the detection platform 1, and the supporting platform 28 is slidably connected to the second slide rail 42.

[0032] Among them, it also includes a horizontal detection component, which includes two side panels 4 arranged at the upper end of the detection platform 1, and the adjacent sides of the two side panels 4 are commonly fixedly connected to two first slide rails 3, and the two first slide rails 3 are slidably connected to sliding blocks 5, and the lower ends of the two sliding blocks 5 are commonly fixedly connected to a rectangular plate 7, and the lower ends of the two rectangular plates 7 are fixedly connected to telescopic rods 17, and the telescopic ends of the two telescopic rods 17 are fixedly connected to U-shaped blocks 21, and the left and right inner walls of the two U-shaped blocks 21 are commonly fixedly connected to elastic ropes 22, and the radius of the elastic rope 22 is 0.1mm, so that when the gap between the L-shaped rod 9 and the upper surface of the gear is very small, the elastic rope 22 can also pass through, and the upper end of the detection platform 1 is fixedly connected to two pneumatic rods 8, and the telescopic ends of the two pneumatic rods 8 are fixedly connected to the L-shaped rod 9, and the adjacent sides of the two side panels 4 are commonly rotated with a screw rod 23, and the screw rod 23 penetrates the rectangular plate 7, and the rectangular plate 7 is threadedly connected to the screw rod 23.

[0033] Among them, a turning handle 6 is rotatably connected to the rectangular plate 7, and two threaded rods 19 are rotatably connected to the lower end of the rectangular plate 7. Threaded sleeves 20 are threadedly connected to the two threaded rods 19, and the lower ends of the two threaded sleeves 20 are fixedly connected to the corresponding U-shaped blocks 21. The two threaded rods 19 are connected to the turning handle 6 through a second transmission assembly 18. The second transmission assembly 18 includes a second sprocket arranged on the turning handle 6 and the two threaded rods 19. The three second sprockets are connected through a second chain transmission. The radius of the second sprocket on the turning handle 6 is twice the radius of the other two second sprockets.

[0034] Among them, two connecting blocks 29 are fixedly connected to the detection table 1, and the adjacent sides of the two connecting blocks 29 are rotatably connected with a short rod 32. The right side of the short rod 32 passes through the corresponding connecting block 29, and a first gear 31 is provided on the short rod 32. A second rack 30 is fixedly connected to the bearing platform 28, and the second rack 30 is meshed with the first gear 31. The front side of the screw rod 23 passes through the corresponding side plate 4, and two mounting blocks 12 are fixedly connected to the side plate 4 located on the front side. The two mounting blocks 12 are rotatably connected with a transmission rod 11. The transmission rod 11 and the screw rod 23 are both provided with mutually meshing bevel gears 13. The transmission rod 11 and the short rod 32 are connected in transmission via a first transmission assembly 16. The first transmission assembly 16 includes a first sprocket arranged on the transmission rod 11 and the short rod 32, and the two first sprockets are connected in transmission via a first chain.

[0035] Among them, the upper end of the testing table 1 is fixedly connected with a vertical rod 46, and a plurality of sliding boxes 47 are arranged on the outer side of the vertical rod 46. The plurality of sliding boxes 47 are distributed in a ring array, and positioning blocks 48 are slidably connected inside the plurality of sliding boxes 47. The plurality of positioning blocks 48 are elastically connected to the inner wall of the corresponding sliding box 47 through a second spring 45. The upper ends of the plurality of positioning blocks 48 are all arc surfaces, ensuring that even when the inner diameter of the gear is unqualified, the axis center of the gear and the axis center of the vertical rod 46 are in an overlapping state.

[0036] The functional principle of the present invention can be explained through the following operation mode: when testing the gear, the gear is first placed on the testing platform 1. When placing the gear, the gear needs to be placed from top to bottom so that the vertical rod 46 passes through the gear. When the gear is placed down, the plurality of positioning blocks 48 will move into the sliding box 47. In the process of placing the gear, the plurality of positioning blocks 48 are all in contact with the inner wall of the gear, thereby ensuring that the axis of the gear is aligned with the axis of the vertical rod 46.

[0037] When the gear is placed, the staff manually turns the handle 6, and the handle 6 drives the two threaded rods 19 to rotate. During the rotation of the threaded rod 19, the two threaded sleeves 20 drive the two U-shaped blocks 21 to move downward, and the two U-shaped blocks 21 move downward and drive the two elastic ropes 22 to move downward, so that the height of the elastic ropes 22 is flush with the upper surface of the gear. The staff controls the two pneumatic rods 8 to retract, and drives the two L-shaped rods 9 to move downward, so that the L-shaped rods 9 contact the surface of the gear.

[0038] It is worth noting that when the two L-shaped rods 9 move downward, the staff needs to control the two pneumatic rods 8 to retract to the same distance, so that the two L-shaped rods 9 move downward to the same distance. When the gear surface is uneven, the L-shaped rod 9 on the lower side will not contact the upper surface of the gear.

[0039] After the above preparations are completed, the staff controls the two electric cylinders 27 to operate, so that the carrier 28 drives the amplifying box 10 to move forward. Since the second gear 39 is meshed with the two first racks 24, and the two second rotating shafts 38 are connected to the rear inner wall of the amplifying box 10 through the damping bearing, when the amplifying box 10 moves forward, the two first racks 24 will move forward (since the movement of the detection block 44 is not restricted at this time, the gas moved by the round rod 25 can easily enter the detection box 43, and the first rack 24 will not cause the two second gears 39 to rotate);

[0040] The two first racks 24 move forward, which drives the two round rods 25 to move forward. The two round rods 25 move forward, which reduces the space in the compression groove 37 and increases the air pressure, so that the gas in the two compression grooves 37 enters the detection box 43, thereby increasing the gas in the detection box 43 and increasing the air pressure, thereby causing the two detection blocks 44 to move relative to each other.

[0041] When the two detection blocks 44 are in contact with the outer wall of the gear, the two electric cylinders 27 will continue to stretch, and the gas in the compression groove 37 cannot be squeezed out, so that the round rod 25 and the first rack 24 will not move. In the process of the electric cylinder 27 continuing to stretch, the magnifying box 10 continues to move forward, so that the two second gears 39 drive the corresponding third gears 40 to rotate, so that the two first rotating shafts 35 drive the two pointers 36 to rotate. Since the two detection blocks 44 are in contact with the side of the gear at this time, the deflection angles of the two pointers 36 are the same during the time when the electric cylinder 27 continues to move. At this time, it means that the distance between the symmetrical side of the gear and the gear axis is the same;

[0042] When one detection block 44 contacts the side of the gear and the other detection block 44 does not contact the side of the gear, during the continuous stretching of the electric cylinder 27, the first rack 24 corresponding to the detection block 44 in contact will stop moving, and the first rack 24 and round rod 25 corresponding to the detection block 44 not in contact will continue to move, so that one of the pointers 36 will rotate first, and the other pointer 36 will rotate only after the detection block 44 contacts the gear, so that there will be a rotation angle deviation between the two pointers 36. Since the radius of the second gear 39 is greater than the radius of the third gear 40, the distance moved in time by the first rack 24 is small, and the rotation angle of the pointer 36 will also be large, so that the staff can more easily judge whether the side size of the gear is qualified;

[0043] When the electric cylinder 27 is stretched, the second rack 30 will move forward, and the second rack 30 will move forward to drive the first gear 31 to rotate, thereby causing the short rod 32 to rotate. The rotation of the short rod 32 drives the transmission rod 11 to rotate through the first transmission assembly 16. Since the two bevel gears 13 are engaged, the screw rod 23 rotates, and then the rectangular plate 7 drives the two elastic ropes 22 to move forward;

[0044] The elastic rope 22 is relatively thin. When the rectangular plate 7 moves forward, when both elastic ropes 22 cannot pass through the L-shaped rod 9, it means that there is no gap between the L-shaped rod 9 and the upper surface of the gear, and the upper surface of the gear is flat. When one of the elastic ropes 22 passes through the L-shaped rod 9 and the other elastic rope 22 is blocked from stretching by the L-shaped rod 9, it means that the upper surface of the gear is uneven and there is a certain height difference on both sides.

[0045] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional gear testing device, comprising a testing platform (1), characterized in that: The upper end of the detection platform (1) is fixedly connected to two fixed plates (2), and adjacent sides of the two fixed plates (2) are commonly provided with a side detection component, the side detection component comprising a detection box (43) fixed on the two fixed plates (2), the two detection boxes (43) are both sealed and slidably connected with detection blocks (44), the two detection blocks (44) are elastically connected to the inner walls of the corresponding detection boxes (43) through second springs (45), the upper end of the detection platform (1) is fixedly connected to a compression box (15), the compression box (15) is provided with two compression grooves (37), the front side spaces of the two compression grooves (37) are connected to the two detection boxes (43) through connecting pipes (14), the two compression grooves (37) are both sealed and slidably connected with round rods (25), and the right sides of the two round rods (25) are both fixedly connected with protrusions (34), and an amplification component is provided on the detection platform (1), the amplification component is used to amplify the difference of the detection result.

2. A multifunctional gear detection device according to claim 1, characterized in that: The amplifying assembly comprises a fixing block (26) fixed on the detection platform (1), the front side of the fixing block (26) is fixedly connected to two electric cylinders (27), the telescopic ends of the two electric cylinders (27) are fixedly connected to a carrier platform (28), the upper end of the carrier platform (28) is fixedly connected to an amplifying box (10), the amplifying box (10) is provided with two cavities, the left inner walls of the two cavities are rotatably connected to a first rotating shaft (35) and a second rotating shaft (38), the two first rotating shafts (35) are provided with a third gear (40), the two first rotating shafts (35) are provided with a second gear (39), the two third gears (40) ) is meshed with the corresponding second gear (39), the upper ends of the two protrusions (34) are fixedly connected to a connecting rod (33), the rear sides of the two connecting rods (33) are fixedly connected to a first rack (24), the two first racks (24) extend into the cavity and mesh with the second gear (39), the amplifying box (10) is provided with two circular grooves, the left sides of the two circular grooves are provided with scale lines, the right sides of the two first rotating shafts (35) extend into the circular grooves and are fixedly connected to a pointer (36), the detection platform (1) is fixedly connected to a second slide rail (42), and the supporting platform (28) is slidably connected to the second slide rail (42).

3. A multifunctional gear detection device according to claim 2, characterized in that: The horizontal detection assembly also includes two side plates (4) arranged at the upper end of the detection platform (1), the adjacent sides of the two side plates (4) are commonly fixedly connected with two first slide rails (3), the two first slide rails (3) are slidably connected with sliding blocks (5), the lower ends of the two sliding blocks (5) are commonly fixedly connected with a rectangular plate (7), the lower ends of the two rectangular plates (7) are both fixedly connected with telescopic rods (17), the telescopic ends of the two telescopic rods (17) are both fixedly connected with U-shaped blocks (21), the left and right inner walls of the two U-shaped blocks (21) are commonly fixedly connected with elastic ropes (22), the upper end of the detection platform (1) is fixedly connected with two pneumatic rods (8), the telescopic ends of the two pneumatic rods (8) are both fixedly connected with L-shaped rods (9), the adjacent sides of the two side plates (4) are commonly rotated with a screw rod (23), the screw rod (23) passes through the rectangular plate (7), and the rectangular plate (7) is threadedly connected to the screw rod (23).

4. The multifunctional gear detection device according to claim 3, characterized in that: A turning handle (6) is rotatably connected to the rectangular plate (7), and two threaded rods (19) are rotatably connected to the lower end of the rectangular plate (7). The two threaded rods (19) are both threadedly connected to threaded sleeves (20), and the lower ends of the two threaded sleeves (20) are fixedly connected to corresponding U-shaped blocks (21). The two threaded rods (19) are transmission-connected to the turning handle (6) via a second transmission assembly (18).

5. The multifunctional gear detection device according to claim 4, characterized in that: The second transmission assembly (18) comprises a second sprocket arranged on a turning handle (6) and two threaded rods (19), the three second sprockets being connected via a second chain transmission, and the radius of the second sprocket on the turning handle (6) being twice the radius of the other two second sprockets.

6. The multifunctional gear detection device according to claim 3, characterized in that: Two connecting blocks (29) are fixedly connected to the detection platform (1), and the adjacent sides of the two connecting blocks (29) are rotatably connected to a short rod (32). The right side of the short rod (32) passes through the corresponding connecting block (29), and the short rod (32) is provided with a first gear (31). A second rack (30) is fixedly connected to the bearing platform (28), and the second rack (30) is meshed with the first gear (31). The front side of the screw rod (23) passes through the corresponding side plate (4), and two mounting blocks (12) are fixedly connected to the side plate (4) located at the front side. The two mounting blocks (12) are rotatably connected to a transmission rod (11) through the two mounting blocks. The transmission rod (11) and the screw rod (23) are both provided with mutually meshing bevel gears (13), and the transmission rod (11) and the short rod (32) are transmission-connected through a first transmission assembly (16).

7. The multifunctional gear detection device according to claim 6, characterized in that: The first transmission assembly (16) comprises a first sprocket wheel arranged on a transmission rod (11) and a short rod (32), and the two first sprocket wheels are connected by a first chain transmission.

8. The multifunctional gear detection device according to claim 1, characterized in that: The upper end of the detection platform (1) is fixedly connected to a vertical rod (46), and a plurality of sliding boxes (47) are arranged on the outer side of the vertical rod (46). The plurality of sliding boxes (47) are distributed in a ring array, and a positioning block (48) is slidably connected inside the plurality of sliding boxes (47). The plurality of positioning blocks (48) are elastically connected to the inner wall of the corresponding sliding box (47) through a second spring (45), and the upper ends of the plurality of positioning blocks (48) are all arc surfaces.

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