A transmission shaft detection device and a method of using the same

Abstract

The present invention belongs to the technical field of detection devices; a device for detecting a transmission shaft and a method for using the same are disclosed, wherein the device for detecting the transmission shaft comprises an annular mounting plate, a plurality of annular mounting plates are evenly distributed and arranged, two adjacent annular mounting plates are fixedly connected, a plurality of fixed shells are evenly distributed and fixedly arranged on the outer wall of the annular mounting plate, the inner cavities of the fixed shells are all provided with detection components, a rotation adjustment component is provided on one side of the annular mounting plate, the rotation adjustment component is used to drive the detection component to rotate to realize switching the working angle of the detection component; the present invention can perform detection operations on transmission shafts of different lengths, improves the versatility during use, and during the detection process, there is no need to center and fix the transmission shaft, the transmission shaft can be made to directly and quickly pass through the middle of the detection position surrounded by multiple detection components, and can effectively improve the detection efficiency of the transmission shaft.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection devices, and in particular, relates to a transmission shaft detection device and a method for using the same. Background Art

[0002] The drive shaft is a mechanical component used to transmit rotational power, usually in the shape of a long shaft. It plays a key role in the power transmission systems of various mechanical equipment and vehicles. As a key component in many mechanical equipment such as automobiles, agricultural vehicles, and agricultural machinery, the performance stability and durability of the drive shaft directly affect the normal operation and service life of the entire machine. In order to improve the production quality of the drive shaft and meet the needs of use, it is necessary to inspect the outer surface size of the drive shaft.

[0003] Traditional transmission shaft detection methods mainly rely on manual visual inspection or the use of professional sizing devices for detection operations; the manual visual detection method requires a high level of professionalism from the detection personnel in the actual operation process, and cannot achieve quantitative detection, resulting in low transmission shaft detection accuracy; and when using professional sizing devices for detection operations, the detection process is highly complex and time-consuming, so most of them can only be spot-checked, and cannot perform efficient detection operations on large quantities of transmission shafts; based on the above reasons, the present invention proposes a transmission shaft detection device and a method of use thereof, which are used to solve the deficiencies in the prior art in the detection of the outer surface dimensions of the transmission shaft. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a transmission shaft detection device and a method of using the same, which can perform detection operations on transmission shafts of different lengths, thereby improving versatility during use. During the detection process, there is no need to center and fix the transmission shaft, so that the transmission shaft can directly and quickly pass through the middle of the detection position surrounded by multiple detection components, thereby effectively improving the detection efficiency of the transmission shaft.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A transmission shaft detection device comprises an annular mounting plate, wherein a plurality of the annular mounting plates are evenly distributed, two adjacent annular mounting plates are fixedly connected, a plurality of fixed shells are evenly distributed and fixedly installed on the outer wall of the annular mounting plate, the inner cavity of each fixed shell is provided with a detection component, a rotation adjustment component is provided on one side of the annular mounting plate, and the rotation adjustment component is used to drive the detection component to rotate to realize switching the working angle of the detection component;

[0007] The detection component includes a movable tube arranged inside the fixed shell, the axis of the movable tube and the axis of the annular mounting plate are arranged vertically, one end of the movable tube close to the center of the annular mounting plate passes through the inner and outer side walls of the annular mounting plate, the movable tube and the annular mounting plate are movably connected, one end of the movable tube close to the center of the annular mounting plate is rotatably connected to a roller, an elastic guiding mechanism is arranged between the fixed shell and the movable tube, and a position detection mechanism for detecting the position of the movable tube is arranged on the movable tube.

[0008] The following is a further optimization of the above technical solution by the present invention:

[0009] The elastic guiding mechanism includes a first spring, and an installation countersunk hole is opened inside the end of the movable tube away from the roller, and one end of the first spring is fixedly installed on the inner wall of the installation countersunk hole of the movable tube; the other end of the first spring is fixedly connected to a fixing rod, and the fixing rod and the movable tube are coaxially arranged, and the fixing rod extends from the end away from the first spring to the outside of the movable tube and is fixedly connected to the inner wall of the fixed shell.

[0010] Further optimization: the position detection mechanism includes a horizontal plate fixedly mounted on the outer wall of the end of the movable tube away from the roller, and a distance measuring device is fixedly mounted on the horizontal plate, and the distance measuring device is used to detect the displacement distance of the movable tube.

[0011] Further optimization: the rotation adjustment assembly includes gears, which are respectively arranged in the fixed shell, each movable tube is transmission-connected with a gear, and the gear is slidingly connected to the movable tube, and the gear is rotationally connected to the outer surface of the annular mounting plate.

[0012] Further optimization: a circular plate is coaxially arranged on one side of the annular mounting plate, and racks are fixedly installed at positions corresponding to each fixed shell on the circular plate. The other end of the rack passes through the fixed shell and meshes with the gear. The rack is slidingly connected to the fixed shell, and a number of automatic telescopic push rods are fixedly installed between the circular plate and the corresponding annular mounting plate.

[0013] Further optimization: a slide groove is opened on the outer wall of the movable tube, a through hole is opened at the center position of the gear, the gear is sleeved on the corresponding movable tube through the through hole, a slider is fixedly connected to the inner wall of the through hole, and the slider is slidably installed in the corresponding slide groove.

[0014] Further optimization: an annular groove is provided on the side wall of the gear close to the annular mounting plate, a plurality of fixed blocks are movably connected in the annular groove, and the fixed blocks are fixedly connected to the outer wall of the annular mounting plate.

[0015] Further optimization: a plurality of threaded holes are provided on the left and right side walls of the annular mounting plate, a plurality of connecting threaded rods are evenly distributed between two adjacent annular mounting plates, and both ends of the connecting threaded rods are respectively inserted into the threaded holes on both sides and threadedly connected with the threaded holes.

[0016] Further optimization: multiple movable tubes are arranged on the annular mounting plate in an annular array distribution, and the movable tubes on two adjacent annular mounting plates are arranged in a staggered manner;

[0017] Each annular mounting plate is fixedly connected with a fixing plate, and the bottom surfaces of a plurality of fixing plates are fixedly connected with the same bottom plate.

[0018] The present invention also provides a method for using a transmission shaft detection device, based on the above-mentioned transmission shaft detection device, comprising the following steps:

[0019] S1: First, fix the bottom plate to the designated position on the production line and ensure that the transmission shaft production line is aligned with the center of the annular mounting plate. Then, connect the device to the external power supply, connect the distance measuring device to the external processing equipment, ensure the stability of data transmission, and complete the preparation work before the transmission shaft detection.

[0020] S2: The transmission shaft production line conveys the produced transmission shaft to the middle of the annular mounting plate. Under the push of the first spring, the movable tube drives the roller to move to one side of the transmission shaft. At this time, the outer wall of the transmission shaft is pressed tightly against the roller. The transmission shaft is positioned by using multiple rollers, and the production line is ensured to convey the transmission shaft continuously and stably, so that the transmission shaft passes through the middle of each annular mounting plate.

[0021] S3: When the outer wall of the transmission shaft is uniform, the roller will maintain the rolling effect between the transmission shaft and will not drive the movable tube to move. The reading on the distance measuring device remains stable, so that the detected cylindricity of the transmission shaft is qualified. When the outer wall of the transmission shaft is uneven, the uneven position on the transmission shaft will generate an offset driving force on the roller, and the roller drives the movable tube to move. The movable tube drives the distance measuring device to move through the cross plate. At this time, the distance detected by the distance measuring device will change. The detection data of the distance measuring device is transmitted to the external analysis device, and the location of the transmission shaft cylindricity that is unqualified is determined by locating the distance measuring device where the detection data fluctuates, so as to facilitate the correction of the transmission shaft in the later stage.

[0022] S4: If the coaxiality of the transmission shaft needs to be tested, the automatic telescopic push rod is started to drive the annular plate to move, the annular plate drives the rack to move and the meshing gear to rotate, the gear drives the movable tube to rotate through the slider, and when the roller on the movable tube rotates 90°, the movement of the automatic telescopic push rod is stopped to complete the adjustment operation of the roller working angle;

[0023] S5: The transmission shaft to be inspected is transported to the middle position of the annular mounting plate by an external device. At this time, under the push of the first spring, the movable tube drives the roller to move to one side of the transmission shaft, and the roller is used to support and position the transmission shaft. The two ends of the transmission shaft are connected to the external rotating device through transmission, and no centering and fixing is required. The external rotating device is started to drive the transmission shaft to rotate;

[0024] S6: When the transmission shaft is rotating, the transmission shaft drives the roller to rotate, and because the transmission shaft is not fixed in the center, the transmission shaft will rotate eccentrically during the rotation process. At this time, the transmission shaft will push the movable tube to move through the roller, and the movable tube will drive the distance measuring device to move through the cross plate, so that the distance measuring device measures the displacement spacing in real time. When the displacement spacing measured by the distance measuring device shows a periodic change and the displacement spacing changes of the distance measuring device are the same, it means that the concentricity of the tested transmission shaft is qualified. When the displacement spacing measured by the distance measuring device fluctuates greatly, it means that the concentricity of the transmission shaft is unqualified.

[0025] S7: After the transmission shaft is inspected, the transmission shaft is pulled out from the middle position of the annular mounting plate, and the next transmission shaft can be inspected again.

[0026] The present invention adopts the above technical solution and has the following beneficial effects:

[0027] 1. The present invention is provided with an annular mounting plate and a detection component. Through the combined installation of multiple annular mounting plates, the detection operation of transmission shafts of different lengths can be realized, thereby improving the versatility of the device during detection. In the detection process, the roller is pushed by the transmission shaft, and the distance measuring device measures the position change in real time, thereby realizing quantitative operation of transmission shaft detection, effectively improving the accuracy of transmission shaft detection. At the same time, the device does not need centering and fixing operations when detecting the transmission shaft, and the transmission shaft can be directly and quickly passed through the middle of the detection position surrounded by multiple detection components, thereby effectively improving the detection efficiency of the transmission shaft.

[0028] 2. The present invention is provided with a rotation adjustment component, the automatic telescopic push rod drives the circular ring plate to move, the circular ring plate drives the rack to move, the rack meshing gear rotates, the gear drives the movable tube to rotate through the slider, so as to adjust the working angle of the roller. When the rotation direction of the roller is the same as the conveying direction of the detected transmission shaft, the cylindricity of the transmission shaft can be detected. When the rotation direction of the roller is vertically arranged with the axial direction of the detected transmission shaft, the concentricity of the transmission shaft can be detected. The operation is convenient and can effectively improve the detection efficiency of the transmission shaft.

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of the overall structure of Example 1 of the present invention;

[0031] Figure 2 A three-dimensional diagram of the overall structure of Embodiment 1 of the present invention from another viewing angle;

[0032] Figure 3 is a cross-sectional view of the overall structure in Example 1 of the present invention;

[0033] Figure 4 It is a side view of the overall structure in Example 1 of the present invention;

[0034] Figure 5 A three-dimensional diagram of the annular mounting plate in Embodiment 1 of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the detection component in Example 1 of the present invention;

[0036] Figure 7 is a stereoscopic diagram of the rotation adjustment assembly in Example 1 of the present invention;

[0037] Figure 8 It is a cross-sectional view of the movable tube in Example 1 of the present invention;

[0038] Fig. 9 for Figure 3 A partial enlarged view of the middle A;

[0039] Fig.10 Schematic diagram of the structure of the rotation adjustment component in Example 2 of the present invention.

[0040] In the figure: 1-annular mounting plate; 2-fixed shell; 3-detection component; 4-rotation adjustment component; 5-movable tube; 6-roller; 7-first spring; 8-fixed rod; 9-horizontal plate; 10-distance measuring device; 11-gear; 12-rack; 13-circular plate; 14-automatic telescopic push rod; 15-vertical plate; 16-threaded hole; 17-connecting threaded rod; 18-slide groove; 19-through hole; 20-slider; 21-annular groove; 22-fixed block; 23-fixed plate; 24-bottom plate; 25-worm wheel; 26-worm; 27-transmission gear. DETAILED DESCRIPTION

[0041] Example 1: Figure 1-9As shown: a transmission shaft detection device comprises an annular mounting plate 1, wherein a plurality of the annular mounting plates 1 are evenly distributed, and two adjacent annular mounting plates 1 are fixedly connected, and a plurality of fixed shells 2 are evenly distributed and fixedly installed on the outer wall of the annular mounting plate 1, and a detection component 3 is provided in the inner cavity of the fixed shell 2, and a rotation adjustment component 4 is provided on one side of the annular mounting plate 1, and the rotation adjustment component 4 is used to drive the detection component 3 to rotate to realize switching the working angle of the detection component 3.

[0042] In the present embodiment 1, a plurality of annular mounting plates 1 are coaxial and arranged in sequence and spaced apart, and two adjacent annular mounting plates 1 are fixedly connected, so that the plurality of annular mounting plates 1 can be assembled into one body for easy use.

[0043] In this embodiment 1, a plurality of threaded holes 16 are provided on the left and right side walls of the annular mounting plate 1, and a plurality of connecting threaded rods 17 are provided between two adjacent annular mounting plates 1. The plurality of connecting threaded rods 17 are arranged in a ring shape and evenly spaced along the axis of the annular mounting plate 1, and the two ends of the connecting threaded rods 17 are respectively inserted into the threaded holes 16 on both sides and are threadedly connected to the threaded holes 16.

[0044] With this design, two adjacent annular mounting plates 1 can be assembled into one by connecting the threaded rod 17 and the threaded hole 16, which is convenient for use, and then a suitable number of annular mounting plates 1 can be selected for assembly at will, so that the transmission shaft detection device can perform detection operations on transmission shafts of different lengths according to actual needs.

[0045] The detection assembly 3 includes a movable tube 5 arranged inside the fixed shell 2, the axis of the movable tube 5 is arranged perpendicular to the axis of the annular mounting plate 1, one end of the movable tube 5 close to the center of the annular mounting plate 1 penetrates the inner and outer side walls of the annular mounting plate 1, and the movable tube 5 and the annular mounting plate 1 are movably connected.

[0046] With such a design, the movable tubes 5 can slide on the annular mounting plate 1, so that the plurality of movable tubes 5 can move toward or away from each other.

[0047] One end of the movable tube 5 close to the center of the annular mounting plate 1 is rotatably connected to a roller 6, an elastic guide mechanism is provided between the fixed shell 2 and the movable tube 5, and a position detection mechanism for detecting the position of the movable tube 5 is provided on the movable tube 5.

[0048] The elastic guide mechanism outputs elastic force to limit the initial position of the movable tube 5, and when there is a moving force on one end of the movable tube 5 close to the center of the annular mounting plate 1, the elastic guide mechanism can be compressed and the movement of the movable tube 5 can be guided, so that the movable tube 5 can move smoothly and is convenient to use.

[0049] The elastic guiding mechanism includes a first spring 7. A mounting countersunk hole is opened inside the end of the movable tube 5 away from the roller 6. One end of the first spring 7 is fixedly installed on the inner wall of the mounting countersunk hole of the movable tube 5. The overall length of the first spring 7 in the initial state is less than the opening depth of the mounting countersunk hole.

[0050] The other end of the first spring 7 is fixedly connected to a fixing rod 8 , the fixing rod 8 and the movable tube 5 are coaxially arranged, and the fixing rod 8 and the inner surface of the mounting countersunk hole are slidably connected.

[0051] One end of the fixing rod 8 away from the first spring 7 extends to the outside of the movable tube 5 and is fixedly connected to the inner wall of the fixing shell 2 .

[0052] In this design, the fixing rod 8 is slidably connected to the inner surface of the mounting countersunk hole, so that the movable tube 5 is slidably installed on the fixing rod 8. At this time, the movement of the movable tube 5 can be guided by the fixing rod 8, which is convenient for use, and the first spring 7 outputs elastic force to limit the initial position of the movable tube 5.

[0053] When there is a moving force on the movable tube 5, the movable tube 5 compresses the first spring 7, so that the movable tube 5 can move smoothly on the fixed rod 8, which is convenient to use, and the position of the movable tube 5 can be adjusted, and then the position of the roller 6 can be adjusted. When the movable tube 5 loses the moving force, the first spring 7 outputs elastic force to push the movable tube 5 to reset and move, which is convenient to use.

[0054] The position detection mechanism includes a transverse plate 9 fixedly mounted on the outer wall of the end of the movable tube 5 away from the roller 6. The transverse plate 9 is arranged in the fixed shell 2. A distance measuring device 10 is fixedly mounted on the transverse plate 9. The distance measuring device 10 is used to detect the displacement distance of the movable tube 5.

[0055] In this embodiment 1, the distance measuring device 10 adopts a laser rangefinder, the detection end of the distance measuring device 10 is arranged parallel to the movable tube 5, and the detection end of the distance measuring device 10 is facing the side away from the center of the annular mounting plate 1. The distance measuring device 10 is used to detect the distance between the horizontal plate 9 and the side of the fixed shell 2 away from the annular mounting plate 1, and the distance is the displacement distance of the movable tube 5.

[0056] When the rotation direction of the roller 6 is the same as the conveying direction of the detected transmission shaft, the detected transmission shaft passes through the middle of each annular mounting plate 1. At this time, when the outer wall of the transmission shaft is uniform, the roller 6 will maintain the rolling effect between the transmission shaft and will not drive the movable tube 5 to move. The reading on the distance measuring device 10 remains stable, and the cylindricity of the transmission shaft is detected to be qualified. When the outer wall of the transmission shaft is uneven, the uneven position on the transmission shaft will generate an offset driving force for the roller 6, and the roller 6 drives the movable tube 5 to move. The movable tube 5 drives the distance measuring device 10 to move through the cross plate 9. At this time, the spacing detected by the distance measuring device 10 will change, and the detection data of the distance measuring device 10 will be transmitted to the external analysis equipment. By locating the distance measuring device 10 where the detection data fluctuates, the position where the cylindricity of the transmission shaft is unqualified can be determined, which is convenient for the later correction of the transmission shaft.

[0057] When the coaxiality of the transmission shaft needs to be tested, first adjust the rotation direction of the roller 6 to be perpendicular to the axial direction of the transmission shaft to be tested, then pass the transmission shaft through the middle of multiple annular mounting plates 1, and then connect the two ends of the transmission shaft to the external rotating device for transmission. There is no need for centering and fixing, and start the external rotating device to drive the transmission shaft to rotate.

[0058] When the transmission shaft is rotating, the transmission shaft drives the roller 6 to rotate, and because the eccentricity of the transmission shaft is fixed, the transmission shaft will push the movable tube 5 to move through the roller 6, and the movable tube 5 drives the distance measuring device 10 to move through the cross plate 9, so that the distance measuring device 10 measures the displacement spacing in real time. When the displacement spacing measured by the distance measuring device 10 shows periodic changes and the displacement spacing changes of the distance measuring device 10 are the same, it means that the concentricity of the detected transmission shaft is qualified.

[0059] When the displacement distance measured by the distance measuring device 10 fluctuates greatly, it means that the concentricity of the transmission shaft is unqualified.

[0060] The above two detection operations for the transmission shaft are both performed based on the value of the distance measuring device 10, so as to quantify the detection of the transmission shaft and effectively improve the detection accuracy.

[0061] In addition to the present embodiment 1, the distance measuring device 10 may also adopt a rotary encoder, the detection end of the rotary encoder is connected to the outer surface of the movable tube 5 through a detection wheel, and the movable tube 5 drives the rotary encoder to work through the detection wheel when moving. At this time, the rotary encoder can be used to detect the displacement spacing of the movable tube 5, which is convenient to use. The rotary encoder is a prior art, and its specific working principle will not be repeated here.

[0062] In this embodiment 1, each fixed shell 2 is provided with a movable tube 5 in its inner cavity, and a plurality of movable tubes 5 are arranged on the annular mounting plate 1 in an annular array distribution, and the movable tubes 5 on two adjacent annular mounting plates 1 are staggered.

[0063] With this design, by staggering the movable tubes 5 on two adjacent annular mounting plates 1, a comprehensive detection operation of the transmission shaft can be achieved, ensuring that the rollers 6 are in contact at all positions on the outer wall of the transmission shaft, which is convenient to use.

[0064] In the present embodiment 1, a fixing plate 23 is fixedly connected to each annular mounting plate 1 , and the bottom surfaces of several fixing plates 23 are fixedly connected to the same bottom plate 24 .

[0065] In the present embodiment 1, the annular mounting plate 1 and the fixing plate 23 as well as the fixing plate 23 and the bottom plate 24 are fixedly connected by bolts, so as to facilitate assembly and disassembly and improve the use effect.

[0066] The rotation adjustment assembly 4 includes gears 11, which are respectively arranged in the fixed shell 2. Each movable tube 5 is transmission-connected with a gear 11, and the gear 11 is slidingly connected to the movable tube 5, and the gear 11 is rotationally connected to the outer surface of the annular mounting plate 1.

[0067] A slide groove 18 is provided on the outer wall of the movable tube 5, a through hole 19 is provided at the center of the gear 11, the gear 11 is sleeved on the corresponding movable tube 5 through the through hole 19, a slider 20 is fixedly connected to the inner wall of the through hole 19, and the slider 20 is slidably installed in the corresponding slide groove 18.

[0068] With such a design, the gear 11 can be sleeved on the corresponding movable tube 5 through the through hole 19, which is convenient for assembly and installation. The movable tube 5 can slide relative to the gear 11, and the moving direction of the movable tube 5 can be guided by the cooperation of the slider 20 and the slide groove 18. The circumferential rotation of the gear 11 can also be limited, so that a transmission connection is achieved between the gear 11 and the movable tube 5.

[0069] An annular groove 21 is formed on the side wall of the gear 11 close to the annular mounting plate 1 . A plurality of fixing blocks 22 are movably connected in the annular groove 21 . The fixing blocks 22 are fixedly connected to the outer wall of the annular mounting plate 1 .

[0070] With this design, the rotation of the gear 11 can be supported through the cooperation between the annular groove 21 and the fixing block 22, so that the gear 11 can rotate smoothly, and the fixing block 22 is fixedly installed on the outer wall of the annular mounting plate 1, thereby realizing the rotatable installation of the gear 11 on the outer wall of the annular mounting plate 1, which is convenient for assembly and installation.

[0071] In addition to the present embodiment 1, the gear 11 can also be rotatably mounted on the outer wall of the annular mounting plate 1 by using a bearing seat, so as to facilitate assembly and installation.

[0072] A circular plate 13 is coaxially arranged on one side of the annular mounting plate 1, and racks 12 are fixedly installed at positions corresponding to each fixed shell 2 on the circular plate 13. The other end of the rack 12 penetrates the fixed shell 2 and meshes with the gear 11. The rack 12 is slidably connected to the fixed shell 2.

[0073] A plurality of automatic telescopic push rods 14 are fixedly installed between the circular ring plate 13 and the corresponding annular mounting plate 1 ; the plurality of automatic telescopic push rods 14 are arranged in annular shape and at intervals along the axis of the annular mounting plate 1 .

[0074] In this embodiment 1, the automatic telescopic push rod 14 is arranged parallel to the axis of the annular mounting plate 1, the telescopic end of the automatic telescopic push rod 14 is fixedly connected to the circular ring plate 13, and the mounting end of the automatic telescopic push rod 14 is fixedly connected to the vertical plate 15, and the vertical plate 15 is fixedly mounted on the outer wall of the annular mounting plate 1.

[0075] With this design, the automatic telescopic push rod 14 is started, the automatic telescopic push rod 14 drives the annular plate 13 to move, the annular plate 13 drives the rack 12 to move, the rack 12 engages the gear 11 to rotate, the gear 11 drives the movable tube 5 to rotate through the slider 20, the movable tube 5 drives the roller 6 to rotate, and the rotation direction of the roller 6 is adjusted. When the rotation direction of the roller 6 is the same as the conveying direction of the detected transmission shaft, the cylindricity of the transmission shaft can be detected. When the rotation direction of the roller 6 is perpendicular to the axial direction of the detected transmission shaft, the concentricity of the transmission shaft can be detected. It is easy to use and can effectively improve the detection efficiency of the transmission shaft.

[0076] In this embodiment 1, the automatic telescopic push rod 14 can be one of a pneumatic cylinder, a hydraulic cylinder and an electric telescopic rod.

[0077] The present invention also provides a method for using a transmission shaft detection device, based on the above-mentioned transmission shaft detection device, comprising the following steps:

[0078] S1: First, fix the base plate 24 to the designated position on the production line, and ensure that the transmission shaft production line is aligned with the center position of the annular mounting plate 1. Then, connect the device to an external power supply, connect the distance measuring device 10 to the external processing equipment, ensure the stability of data transmission, and complete the preparations before the transmission shaft detection.

[0079] S2: During the production of the transmission shaft, the transmission shaft production line transports the produced transmission shaft to the middle of the annular mounting plate 1. Under the push of the first spring 7, the movable tube 5 drives the roller 6 to move to one side of the transmission shaft. At this time, the outer wall of the transmission shaft is pressed tightly against the roller 6. Multiple rollers 6 are used to position the transmission shaft and ensure that the production line can continuously and stably transport the transmission shaft so that the transmission shaft passes through the middle of each annular mounting plate 1.

[0080] S3: When the outer wall of the transmission shaft is uniform, the roller 6 will maintain the rolling effect between the transmission shaft and will not drive the movable tube 5 to move. The reading on the distance measuring device 10 remains stable, so that the detected cylindricity of the transmission shaft is qualified. When the outer wall of the transmission shaft is uneven, the uneven position on the transmission shaft will generate an offset driving force for the roller 6, and the roller 6 drives the movable tube 5 to move. The movable tube 5 drives the distance measuring device 10 to move through the cross plate 9. At this time, the distance detected by the distance measuring device 10 will change. The detection data of the distance measuring device 10 is transmitted to the external analysis equipment, and the distance measuring device 10 with fluctuations in the detection data is located to determine the position where the cylindricity of the transmission shaft is unqualified, so as to facilitate the correction of the transmission shaft in the later stage.

[0081] S4: If it is necessary to detect the coaxiality of the transmission shaft, start the automatic telescopic push rod 14 to drive the annular plate 13 to move, the annular plate 13 drives the rack 12 to move and engage the gear 11 to rotate, the gear 11 drives the movable tube 5 to rotate through the slider 20, when the roller 6 on the movable tube 5 rotates 90°, stop the movement of the automatic telescopic push rod 14, and complete the adjustment operation of the working angle of the roller 6.

[0082] S5: The transmission shaft to be inspected is transported to the middle position of the annular mounting plate 1 through an external device. At this time, under the push of the first spring 7, the movable tube 5 drives the roller 6 to move to one side of the transmission shaft, and the roller 6 is used to support and position the transmission shaft, and the two ends of the transmission shaft are connected to the external rotating device. There is no need for centering and fixing, and the external rotating device is started to drive the transmission shaft to rotate.

[0083] S6: When the transmission shaft is rotating, the transmission shaft drives the roller 6 to rotate, and because the transmission shaft is not centered and fixed, the transmission shaft will rotate eccentrically during the rotation process. At this time, the transmission shaft will push the movable tube 5 to move through the roller 6, and the movable tube 5 drives the distance measuring device 10 to move through the cross plate 9, so that the distance measuring device 10 measures the displacement spacing in real time. When the displacement spacing measured by the distance measuring device 10 shows periodic changes and the displacement spacing changes of the distance measuring device 10 are the same, it means that the concentricity of the tested transmission shaft is qualified. When the displacement spacing measured by the distance measuring device 10 fluctuates greatly, it means that the concentricity of the transmission shaft is unqualified.

[0084] S7: After the detection of the transmission shaft is completed, the transmission shaft is pulled out from the middle position of the annular mounting plate 1, and the detection operation can be performed on the next transmission shaft again.

[0085] Example 2: Fig.10 As shown, based on Example 1, in this Example 2, the rotation adjustment component 4 includes a worm gear 25, and the worm gears 25 are respectively arranged in the fixed shell 2, each movable tube 5 is transmission-connected with a worm gear 25, and the worm gear 25 is slidingly connected to the movable tube 5, and the worm gear 25 is rotationally connected to the outer surface of the annular mounting plate 1.

[0086] In this embodiment 2, the overall structure of the worm wheel 25 is similar to the overall structure of the gear 11 in the above-mentioned embodiment 1. A through hole 19 is opened at the center position of the worm wheel 25. The worm wheel 25 is sleeved on the corresponding movable tube 5 through the through hole 19. A slider 20 is fixedly connected to the inner wall of the through hole 19. A sliding groove 18 is opened on the outer wall of the movable tube 5. The slider 20 is slidably installed in the corresponding sliding groove 18.

[0087] An annular groove 21 is formed on the side wall of the worm wheel 25 close to the annular mounting plate 1 . A plurality of fixing blocks 22 are movably connected in the annular groove 21 . The fixing blocks 22 are fixedly connected to the outer wall of the annular mounting plate 1 .

[0088] In this embodiment 2, the fixing block 22 can be in a trapezoidal block shape, and the cross-sectional shape of the annular groove 21 matches the cross-sectional shape of the fixing block 22. This design enables the worm gear 25 to be stably rotatably mounted on the annular mounting plate 1, which is convenient for assembly and installation.

[0089] One side of the worm wheel 25 is meshedly connected with a worm 26, and both ends of the worm 26 are rotatably mounted on the fixed housing 2. The rotation of the worm 26 drives the worm wheel 25 to rotate, and the rotation of the worm wheel 25 drives the movable tube 5 and the roller 6 to rotate synchronously, thereby adjusting the working angle of the roller 6.

[0090] A circular plate 13 is coaxially arranged on one side of the annular mounting plate 1 . The circular plate 13 is rotatably connected to the side wall of the annular mounting plate 1 , and the circular plate 13 can rotate on the annular mounting plate 1 .

[0091] The outer circumferential surface of the annular plate 13 is provided with meshing teeth. One end of the worm 26 close to the annular plate 13 penetrates the fixed housing 2 and is fixedly connected with a transmission gear 27 . The transmission gear 27 is in transmission connection with the meshing teeth on the annular plate 13 .

[0092] The annular plate 13 rotates to drive the transmission gear 27 and the worm 26 to rotate through the meshing of the teeth, which is convenient to use.

[0093] In this embodiment 2, at least one driving motor (not shown in the figure) is fixedly mounted on the outer surface of the annular mounting plate 1, and the power output end of the driving motor is transmission-connected with the meshing teeth on the annular plate 13 via a meshing gear.

[0094] With this design, when in use, the driving motor drives the annular plate 13 to rotate through the meshing gears. The rotation of the annular plate 13 drives the transmission gear 27 and the worm 26 to rotate through the meshing of the teeth. The rotation of the worm 26 drives the worm wheel 25 to rotate. The rotation of the worm wheel 25 drives the movable tube 5 and the roller 6 to rotate synchronously, thereby adjusting the working angle of the roller 6.

[0095] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A transmission shaft detection device, comprising an annular mounting plate (1), characterized in that: The annular mounting plates (1) are evenly distributed with a plurality of them, two adjacent annular mounting plates (1) are fixedly connected, a plurality of fixed shells (2) are evenly distributed and fixedly mounted on the outer wall of the annular mounting plate (1), the inner cavity of each fixed shell (2) is provided with a detection component (3), and a rotation adjustment component (4) is provided on one side of the annular mounting plate (1), the rotation adjustment component (4) is used to drive the detection component (3) to rotate so as to switch the working angle of the detection component (3); The detection assembly (3) comprises a movable tube (5) arranged inside the fixed shell (2), the axis of the movable tube (5) and the axis of the annular mounting plate (1) being arranged perpendicularly, one end of the movable tube (5) close to the center of the annular mounting plate (1) passing through the inner and outer side walls of the annular mounting plate (1), the movable tube (5) and the annular mounting plate (1) being movably connected, one end of the movable tube (5) close to the center of the annular mounting plate (1) being rotatably connected to a roller (6), an elastic guide mechanism being arranged inside the fixed shell (2) and between the movable tube (5), and a position detection mechanism for detecting the position of the movable tube (5) being arranged on the movable tube (5); The rotation adjustment assembly (4) comprises a gear (11), the gears (11) are respectively arranged in the fixed shell (2), each movable tube (5) is drivingly connected with a gear (11), the gear (11) and the movable tube (5) are slidably connected, and the gear (11) and the outer surface of the annular mounting plate (1) are rotationally connected; A circular plate (13) is coaxially arranged on one side of the annular mounting plate (1), and racks (12) are fixedly mounted at positions corresponding to the respective fixed shells (2) on the circular plate (13), the other end of the rack (12) penetrates the fixed shell (2) and meshes with the gear (11), the rack (12) and the fixed shell (2) are slidably connected, and a plurality of automatic telescopic push rods (14) are fixedly mounted between the circular plate (13) and the corresponding annular mounting plate (1); A slide groove (18) is provided on the outer wall of the movable tube (5), a through hole (19) is provided at the center of the gear (11), the gear (11) is sleeved on the corresponding movable tube (5) through the through hole (19), a slider (20) is fixedly connected to the inner wall of the through hole (19), and the slider (20) is slidably installed in the corresponding slide groove (18).

2. A transmission shaft detection device according to claim 1, characterized in that: The elastic guide mechanism comprises a first spring (7); an installation countersunk hole is provided inside an end of the movable tube (5) away from the roller (6); one end of the first spring (7) is fixedly mounted on the inner wall of the installation countersunk hole of the movable tube (5); the other end of the first spring (7) is fixedly connected to a fixing rod (8); the fixing rod (8) and the movable tube (5) are coaxially arranged; the end of the fixing rod (8) away from the first spring (7) extends to the outside of the movable tube (5) and is fixedly connected to the inner wall of the fixing shell (2).

3. A transmission shaft detection device according to claim 2, characterized in that: The position detection mechanism comprises a transverse plate (9) fixedly mounted on the outer wall of an end of the movable tube (5) away from the roller (6), and a distance measuring device (10) is fixedly mounted on the transverse plate (9). The distance measuring device (10) is used to detect the displacement distance of the movable tube (5).

4. A transmission shaft detection device according to claim 3, characterized in that: An annular groove (21) is provided on the side wall of the gear (11) close to the annular mounting plate (1). A plurality of fixing blocks (22) are movably connected in the annular groove (21). The fixing blocks (22) are fixedly connected to the outer wall of the annular mounting plate (1).

5. A transmission shaft detection device according to claim 4, characterized in that: A plurality of threaded holes (16) are provided on the left and right side walls of the annular mounting plate (1), and a plurality of connecting threaded rods (17) are evenly distributed between two adjacent annular mounting plates (1), with the two ends of the connecting threaded rods (17) respectively inserted into the threaded holes (16) on both sides and threadedly connected to the threaded holes (16).

6. A transmission shaft detection device according to claim 5, characterized in that: A plurality of movable tubes (5) are arranged on the annular mounting plate (1) in a distributed manner in an annular array, and the movable tubes (5) on two adjacent annular mounting plates (1) are arranged in a staggered manner; A fixing plate (23) is fixedly connected to each annular mounting plate (1), and the bottom surfaces of a plurality of fixing plates (23) are fixedly connected to the same bottom plate (24).

7. A method for using a transmission shaft detection device, based on the transmission shaft detection device according to claim 6, characterized in that: The following steps are involved: S1: First, the base plate (24) is fixedly installed at a designated position on the production line, and the transmission shaft production line is aligned with the center position of the annular mounting plate (1). Then, the device is connected to an external power supply, and the distance measuring device (10) is connected to an external processing device to ensure the stability of data transmission, thereby completing the preparation work before the transmission shaft detection. S2: The transmission shaft production line conveys the produced transmission shaft to the middle of the annular mounting plate (1). Under the push of the first spring (7), the movable tube (5) drives the roller (6) to move toward one side of the transmission shaft. At this time, the outer wall of the transmission shaft is pressed against the roller (6). The transmission shaft is positioned by using multiple rollers (6) and the production line is ensured to convey the transmission shaft continuously and stably, so that the transmission shaft passes through the middle of each annular mounting plate (1). S3: When the outer wall of the transmission shaft is uniform, the roller (6) will maintain the rolling action between the transmission shaft and will not drive the movable tube (5) to move. The reading on the distance measuring device (10) will remain stable, so that the detected cylindricity of the transmission shaft is qualified. When the outer wall of the transmission shaft is uneven, the uneven position on the transmission shaft will generate an offset driving force on the roller (6), and the roller (6) will drive the movable tube (5) to move. The movable tube (5) drives the distance measuring device (10) to move through the cross plate (9). At this time, the distance detected by the distance measuring device (10) will change. The detection data of the distance measuring device (10) is transmitted to an external analysis device, and the distance measuring device (10) with fluctuating detection data is located. The position of the transmission shaft cylindricity that is unqualified can be determined, which is convenient for the subsequent correction of the transmission shaft. S4: If the coaxiality of the transmission shaft needs to be detected, the automatic telescopic push rod (14) is started to drive the annular plate (13) to move, the annular plate (13) drives the rack (12) to move and engage the gear (11) to rotate, the gear (11) drives the movable tube (5) to rotate through the slider (20), and when the roller (6) on the movable tube (5) rotates 90°, the movement of the automatic telescopic push rod (14) is stopped, and the adjustment operation of the working angle of the roller (6) is completed; S5: The transmission shaft to be inspected is transported to the middle position of the annular mounting plate (1) by an external device. At this time, under the push of the first spring (7), the movable tube (5) drives the roller (6) to move toward one side of the transmission shaft. The roller (6) is used to support and position the transmission shaft, and the two ends of the transmission shaft are connected to the external rotating device by transmission. There is no need for centering and fixing. The external rotating device is started to drive the transmission shaft to rotate. S6: When the transmission shaft is rotating, the transmission shaft drives the roller (6) to rotate, and because the transmission shaft is not fixed in a centered manner, the transmission shaft will rotate eccentrically during the rotation process. At this time, the transmission shaft will push the movable tube (5) to move through the roller (6), and the movable tube (5) drives the distance measuring device (10) to move through the cross plate (9), so that the distance measuring device (10) measures the displacement spacing in real time. When the displacement spacing measured by the distance measuring device (10) shows a periodic change and the displacement spacing changes of the distance measuring device (10) are the same, it means that the concentricity of the transmission shaft being tested is qualified. When the displacement spacing measured by the distance measuring device (10) fluctuates greatly, it means that the concentricity of the transmission shaft is unqualified. S7: After the transmission shaft is inspected, the transmission shaft is pulled out from the middle of the annular mounting plate (1), and the next transmission shaft can be inspected again.

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