Transmission gear testing device and method

Abstract

The present invention relates to the technical field of gear detection, and specifically to a testing device and method for a transmission gear, comprising a base with a groove provided on its upper surface, a control box being slidably mounted on the right side of the base, a magnetizing component being fixedly mounted on the right side of the base, an inverted L-shaped bracket being fixedly mounted on the right end of the inner side of the groove on the base, a demagnetizing component being slidably mounted on the inverted L-shaped bracket, a conveying component being mounted in the groove of the base, a spraying mechanism for spraying magnetic suspension liquid being jointly provided on the base and the inverted L-shaped bracket, and the position of the spraying mechanism being synchronously adjusted by adapting the diameter of the gear through an adapting mechanism, so as to ensure that a suitable magnetic suspension liquid spraying position can be maintained when performing flaw detection tests on gears of different diameters, so that the magnetic suspension liquid can be evenly and comprehensively covered on the teeth of the gear, so as to ensure that the damage position can be displayed more comprehensively and obviously when the gear is subsequently flawlessly detected, and to avoid the situation where the damage position is missed.

Description

Technical Field

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

[0002] Transmission gears made of ferromagnetic materials may develop surface cracks or defects due to process stress or temperature changes after casting, forging, machining, grinding, welding or heat treatment. In this case, they need to be inspected using a magnetic particle inspection device to ensure that there are no cracks, folds, or inclusions on the surface or near the surface. At the same time, some transmission gears used in high-load environments also need to be inspected before installation.

[0003] When using a magnetic particle inspection device to perform surface flaw inspection on gears, the conventional magnetic suspension spraying method uses a fixed position of the magnetic suspension spray head. Prolonged spraying and increased spray volume are used to ensure uniform and comprehensive coverage of the gear surface by the magnetic suspension. This method increases the entire test time, affecting test efficiency during batch testing. Furthermore, prolonged magnetic suspension spraying also increases the amount of splashing after the magnetic suspension is sprayed on the gear, affecting the cleanliness of the test environment. Summary of the Invention

[0004] Therefore, the present invention provides a testing device and method for transmission gears to solve the above technical problems.

[0005] The present invention provides a testing device for a transmission gear, comprising a base, a control box being slidably mounted on the right side of the base, a magnetizing assembly being fixedly mounted on the right side surface of the base, an inverted L-shaped bracket being fixedly mounted on the right end inside the base, a demagnetizing assembly being slidably mounted on the inverted L-shaped bracket, a conveying assembly being mounted on the inside of the base, a spraying mechanism for spraying magnetic suspension being jointly provided on the base and the inverted L-shaped bracket, the testing device further comprising an adapting mechanism for adjusting the position of the spraying mechanism being provided on the base, the testing device further comprising an adjusting mechanism for adjusting the limit state of the spraying mechanism being provided on the base, and protective shells being fixedly mounted on the front and rear surfaces of the base.

[0006] The spraying mechanism includes a spraying part arranged above the base for spraying magnetic suspension liquid. The upper surface of the base is located below the spraying part and is provided with a support part for adjusting the position of the spraying part. The top of the spraying part is hinged with an elastic telescopic rod, and a carrying ring is fixedly connected to the inverted L-shaped bracket.

[0007] The adapting mechanism comprises an adapting piece provided on the upper surface of the base for adapting to the diameter of the gear, and a synchronizing piece for linking the adapting piece and the supporting piece is provided on the upper surface of the base.

[0008] The adapter adjusts the position of the spray part through the synchronizer according to the diameter of the gear, and cooperates with the elastic telescopic rod to limit the spray part so that the spray part can be in the appropriate spraying position when spraying magnetic suspension on gears of different sizes.

[0009] According to an embodiment of the present invention, the support member includes two groups of front-to-back symmetrical limiting sleeves fixedly connected to the upper surface of the base, the interior of the limiting sleeve is connected to a support plate in a sliding manner along the front-to-back direction, the end of the support plate away from the base is fixedly connected to the limiting slide rod, a return spring is arranged between the outer circumference of the limiting slide rod and the upper surface of the limiting sleeve, the lower surface of the support plate is hinged to the limiting plate, the left and right sides of the limiting plate are hinged with telescopic pull rods, and the end of the telescopic pull rod away from the limiting plate is hinged to the limiting sleeve.

[0010] According to an embodiment of the present invention, the lower surface of the support plate is evenly provided with limiting grooves, the limiting plate is snap-fitted with the limiting grooves, the side of the limiting groove close to the base is an inclined surface, and the side of the limiting groove away from the base is a vertical surface.

[0011] According to an embodiment of the present invention, the spray part includes a connecting rod rotatably connected to the upper surface of the support plate, and a plurality of spray nozzles evenly distributed up and down are fixedly connected to the circumferential surface of the connecting rod. The upper surface of the support plate is located on the side of the connecting rod away from the center of the base and is fixedly connected to a sickle-shaped bracket. The top end of the connecting rod passes through the horizontal section of the sickle-shaped bracket and is rotatably connected to the horizontal section of the sickle-shaped bracket. The top end of the connecting rod is hinged to the elastic telescopic rod, and a liquid delivery pipe is fixed on and connected to the multiple spray nozzles corresponding to the same connecting rod.

[0012] According to an embodiment of the present invention, the adapter includes two symmetrical mounting seats fixedly connected to the front and rear surfaces of the base, and two return spring rods distributed on the left and right are fixedly installed on the mounting seats. The telescopic ends of the two return spring rods are commonly fixedly connected to an adjustment plate, and a side of the adjustment plate away from the center of the base is fixedly connected to a second rack, and an end of the second rack away from the adjustment plate passes through the mounting seat and slides with the mounting seat.

[0013] According to an embodiment of the present invention, the synchronizing part includes two front-to-back symmetrical limiting sleeves 2 fixedly connected to the base, the interior of the limiting sleeve 2 is slidably connected to a rack 3 along the front-to-back direction, and the position on the base corresponding to the limiting sleeve 2 is rotatably connected to a gear shaft 2 through a fixed seat 1, the end of the rack 3 close to the center of the base is fixedly connected to a linkage rod, and the end of the rack 3 away from the center of the base is engaged with the gear shaft 2.

[0014] According to an embodiment of the present invention, the adjustment mechanism includes an adjustment member arranged at the left end of the base, and control members are provided on the front and rear sides of the base. The front and rear sides of the base are located between the control member and the adjustment member and are rotatably connected to gear shaft one through a fixed seat two.

[0015] According to an embodiment of the present invention, the control component includes two L-shaped support frames distributed on the left and right and fixedly connected to the base, the vertical section of the L-shaped support frame is telescopically set, and the vertical sections of the two L-shaped support frames distributed on the left and right are commonly fixedly connected to a T-shaped transmission frame, and the vertical section of the T-shaped transmission frame is provided with teeth on a surface close to the base, and the upper surface of the horizontal section of the T-shaped transmission frame is fixedly connected to two left-right symmetrical linkage rods.

[0016] According to an embodiment of the present invention, the adjusting member includes two elastic support seats fixedly connected to the left end of the bottom surface of the groove on the base, and the top ends of the two elastic support seats are commonly fixedly connected to a T-shaped linkage frame. The front and rear ends of the horizontal section of the T-shaped linkage frame are fixedly connected to a rack 1, and the rack 1 is engaged with the left end of its corresponding gear shaft 1. The right side surface of the vertical section of the T-shaped linkage frame is an inclined surface that gradually rises from right to left.

[0017] A method for testing transmission gears, using a testing device to test surface defects of transmission gears, includes the following steps: S1, placing the gear to be tested on the upper surface of a conveying component, and a staff member controls the conveying component to convey the gear to the right by operating a control box.

[0018] S2. When the gear passes through the adapter, the adapter fits the gear to adjust its position.

[0019] S3. During the process of adjusting the position of the adapter, the synchronizing member is driven to synchronously adjust the position of the supporting member, thereby synchronously adjusting the position of the spraying member.

[0020] S4. After the spraying part position adjustment is completed, the conveying component transports the gear to the test position, magnetizes the gear through the magnetizing component, and sprays the magnetic suspension on the gear through the spraying part.

[0021] S5. Shine a fluorescent light on the gear, observe the location of defects on the gear, and mark them. After the test is completed, demagnetize the gear through the demagnetization component. Then, move it to the left end of the base through the conveying component, and finally remove the tested gear from the conveying component.

[0022] The application of the technical solution of the present invention has at least the following beneficial effects: 1. By adapting the diameter of the gear through the adapter mechanism and synchronously adjusting the position of the spray mechanism, it can be ensured that the appropriate magnetic suspension spray position can be maintained when performing flaw detection tests on gears of different diameters, so that the magnetic suspension can be evenly and comprehensively covered on the teeth of the gear, so as to ensure that the damage position is displayed more comprehensively and clearly during subsequent flaw detection of the gear, thereby avoiding the situation where the damage position is missed.

[0023] 2. By using the elastic telescopic rod in conjunction with the spray part, the center of the spray coverage area of ​​the spray part can be adjusted in the front and rear directions so that the center of the spray coverage area is always oriented towards the center of the gear, thereby ensuring that the spray range of the spray part can cover the entire tooth surface of the gear as much as possible. This allows the magnetic suspension to be sprayed quickly and evenly on the gear, reducing the spraying time of the magnetic suspension, improving test efficiency, reducing the splashing of the magnetic suspension, and ensuring a clean test environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the testing device for the transmission gear provided by the present invention.

[0026] Figure 2 It is a three-dimensional structural diagram of the spraying mechanism and the adapting mechanism provided by the present invention.

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the adapter and the synchronizer provided by the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the support member provided by the present invention.

[0029] Figure 5 The present invention provides Figure 4 Enlarged view of part A.

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the spray element provided by the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the adjusting member provided by the present invention.

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the control component provided by the present invention.

[0033] Figure numerals: 1, base; 2, control box; 3, magnetization assembly; 4, inverted L-shaped bracket; 5, demagnetization assembly; 6, conveying assembly; 7, adjustment mechanism; 8, spray mechanism; 9, adapter mechanism; 10, protective shell; 71, gear shaft 1; 72, control member; 73, adjustment member; 81, load ring; 82, elastic telescopic rod; 83, spray member; 84, support member; 91, adapter member; 92, synchronization member; 721, T-shaped transmission frame; 722, L-shaped support frame; 723, linkage rod; 731, T-shaped linkage frame; 732, elastic support seat; 733, rack 1; 831, sickle-shaped bracket; 832, spray nozzle; 833, connecting rod; 834, liquid delivery pipe; 841, support plate; 842, limiting slide 1; 843, limiting slide rod; 844, telescopic pull rod; 845, limiting plate; 911, adjustment plate; 912, rack 2; 913, return spring rod; 914, mounting seat; 921, limiting slide 2; 922, rack 3; 923, linkage pull rod; 924, gear shaft 2. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] like Figure 1 As shown, a test device for a transmission gear includes a base 1 with a groove on the upper surface, a control box 2 is slidably mounted on the right side of the base 1, a magnetization component 3 is fixedly mounted on the right side of the base 1, an inverted L-shaped bracket 4 is fixedly mounted on the right end of the groove inside the base 1, a demagnetization component 5 is slidably mounted on the inverted L-shaped bracket 4, a conveying component 6 is installed in the groove of the base 1, and the conveying component 6 adopts the existing technology to drive the gear to move left and right linearly and rotate circumferentially. A spray mechanism 8 for spraying magnetic suspension is jointly provided on the base 1 and the inverted L-shaped bracket 4. The test device also includes an adapter mechanism 9 for adjusting the position of the spray mechanism 8. The adapter mechanism 9 is arranged on the base 1 at the left side of the spray mechanism 8. The test device also includes an adjustment mechanism 7 for adjusting the limit state of the spray mechanism 8. The adjustment mechanism 7 is arranged on the base 1. A protective shell 10 for protecting the spray mechanism 8 and the adapter mechanism 9 is fixedly mounted on the front and back surfaces of the base 1. The control box 2 is controlled by existing mature technology and will not be described in detail here.

[0036] like Figure 1 and Figure 2As shown, the adapting mechanism 9 includes an adapting part 91 provided on the upper surface of the base 1 for adapting the diameter of the gear, and a synchronizing part 92 for linking the adapting part 91 and the spraying mechanism 8 is provided on the upper surface of the base 1 .

[0037] like Figure 2 and Figure 3 As shown, the adapter 91 includes two symmetrical mounting seats 914 fixedly connected to the front and rear surfaces of the base 1, and two return spring rods 913 distributed on the left and right are fixedly installed on the mounting seats 914. The telescopic ends of the two return spring rods 913 are commonly fixedly connected to the adjustment plate 911, and the left ends of the two adjustment plates 911 together form a trumpet shape. The side of the adjustment plate 911 away from the center of the base 1 is fixedly connected to the rack 2 912, and the end of the rack 2 912 away from the adjustment plate 911 passes through the mounting seat 914 and slides with the mounting seat 914.

[0038] like Figure 2 and Figure 3 As shown, the synchronizer 92 includes two front-to-back symmetrical limiting sleeves 2 921 fixedly connected to the base 1, and the interior of the limiting sleeve 2 921 is connected to a rack 3 922 in a sliding manner along the front-to-back direction. The position on the base 1 corresponding to the limiting sleeve 2 921 is rotatably connected to the gear shaft 2 924 through the fixed seat 1, and the end of the rack 3 922 close to the center of the base 1 is fixedly connected to the linkage rod 923, and the end of the rack 3 922 away from the center of the base 1 is engaged with the gear shaft 2 924.

[0039] During specific use, first, the external clamping device places the gear to be tested in the center position of the upper surface of the conveying assembly 6. The staff controls the conveying assembly 6 to convey the gear to the right by operating the control box 2. When the gear moves with the conveying assembly 6 and passes between the two adjustment plates 911, the trumpet shape formed by the left ends of the two adjustment plates 911 allows the gear to pass smoothly between the two adapters 91. While the gear slides against the adjustment plate 911, it generates a thrust on the adjustment plate 911 away from its axis. The adjustment plate 911 pushes the reset spring rod 913 to compress, and at the same time pushes the rack 2 912 to slide synchronously on the mounting seat 914. When the rack 2 912 slides on the mounting seat 914, it drives the gear shaft 2 924 to rotate on the fixed seat 1, and the gear shaft 2 924 drives the rack 3 922 to slide along the limiting sleeve 2 921 in the direction away from the base 1.

[0040] like Figure 1 、 Figure 2 and Figure 6As shown, the spray mechanism 8 includes a spray part 83 arranged above the base 1 for spraying magnetic suspension. A support part 84 for adjusting the position of the spray part 83 is fixedly provided on the upper surface of the base 1 below the spray part 83. An elastic telescopic rod 82 is hinged at the top of the spray part 83, and a supporting ring 81 is fixedly connected to the inverted L-shaped bracket 4. The end of the elastic telescopic rod 82 away from the spray part 83 is hinged to the supporting ring 81.

[0041] like Figure 2 、 Figure 4 and Figure 5 As shown, the support member 84 includes two groups of front-to-back symmetrical limiting sleeves 842 fixedly connected to the upper surface of the base 1, and each group of limiting sleeves 842 has two and are symmetrical on the left and right. The interior of the limiting sleeve 842 is slidably connected to a support plate 841 along the front-to-back direction, and the end of the support plate 841 away from the base 1 is fixedly connected to a limiting slide rod 843, and a return spring is provided between the outer circumference of the limiting slide rod 843 and the upper surface of the limiting sleeve 842, and the lower surface of the limiting sleeve 842 is hinged to a limiting plate 845, and the left and right sides of the limiting plate 845 are hinged to a telescopic pull rod 844, and the end of the telescopic pull rod 844 away from the limiting plate 845 is hinged to the limiting sleeve 842, and the lower surface of the support plate 841 is evenly provided with limiting grooves, and the limiting plate 845 is engaged with the limiting groove, and the side of the limiting groove close to the base 1 is an inclined surface, and the side of the limiting groove away from the base 1 is a vertical surface.

[0042] When the gear shaft 924 drives the rack 3 922 to slide inside the limiting sleeve 2 921 in the direction away from the base 1, the rack 3 922 drives the support plate 841 to move synchronously through the linkage pull rod 923 and the spray part 83. Due to the setting direction of the inclined surface, the support plate 841 can only move in the direction away from the base 1. At this time, the inclined surface of the limiting groove on the lower surface of the support plate 841 fits the top end of the limiting plate 845 and slides. At the same time, under the action of the elastic force of the telescopic pull rod 844, an oblique upward pulling force is generated on the limiting plate 845, so that the top end of the limiting plate 845 is always stuck in the limiting groove on the lower surface of the support plate 841 and contacts the vertical surface inside the limiting groove, so that the support plate 841 can only move in the direction away from the base 1 inside the limiting sleeve 1 842. At the same time, the support plate 841 pulls the limiting slide bar 843 to move synchronously to compress the return spring on the limiting slide bar 843.

[0043] like Figure 2 and Figure 6As shown, the spray part 83 includes a connecting rod 833 rotatably connected to the upper surface of the support plate 841, and a plurality of spray nozzles 832 evenly distributed up and down are fixedly connected to the circumferential surface of the connecting rod 833. The upper surface of the support plate 841 is located on the side of the connecting rod 833 away from the center of the base 1 and is fixedly connected to a sickle-shaped bracket 831. The linkage pull rod 923 is fixedly connected to its corresponding sickle-shaped bracket 831. The top of the connecting rod 833 passes through the horizontal section of the sickle-shaped bracket 831 and is rotatably connected to the horizontal section of the sickle-shaped bracket 831. The top of the connecting rod 833 is hinged to the elastic telescopic rod 82, and a liquid delivery pipe 834 is fixed and connected to the multiple spray nozzles 832 corresponding to the same connecting rod 833. The top ends of the four liquid delivery pipes 834 are gathered together through a hose, and the magnetic suspension is uniformly delivered through an external delivery mechanism.

[0044] During specific use, when the support plate 841 moves inside the limiting sliding sleeve 842, the support plate 841 drives the connecting rod 833 to move synchronously. In the process of the connecting rod 833 moving forward and backward with the support plate 841, the elastic telescopic rod 82 restricts the top end of the connecting rod 833, so that the connecting rod 833 rotates on the support plate 841 and the sickle-shaped bracket 831 during the process of displacement in the forward and backward directions, thereby adjusting the opening direction of the spray nozzle 832. Since the end of the elastic telescopic rod 82 away from the connecting rod 833 is toward the center of the supporting ring 81, the elastic telescopic rod 82 itself is extended and retracted to ensure that in the process of adjusting the opening direction of the spray nozzle 832, the center of the opening of the spray nozzle 832 is always toward the center of the supporting ring 81.

[0045] like Figure 1 and Figure 2 As shown, the adjustment mechanism 7 includes an adjustment member 73 arranged at the left end of the base 1, and control members 72 are provided on the front and rear sides of the base 1. The front and rear sides of the base 1 are located between the control member 72 and the adjustment member 73 and are rotatably connected to the gear shaft 1 71 through the fixed seat 2.

[0046] like Figure 2 and Figure 8 As shown, the control member 72 includes two L-shaped support frames 722 distributed on the left and right and fixedly connected to the base 1. The vertical section of the L-shaped support frame 722 is telescopically set. The vertical sections of the two L-shaped support frames 722 distributed on the left and right are commonly fixedly connected to a T-shaped transmission frame 721. The vertical section of the T-shaped transmission frame 721 is provided with teeth on the side close to the base 1. The upper surface of the horizontal section of the T-shaped transmission frame 721 is fixedly connected to two left-right symmetrical linkage rods 723. The top end of the linkage rod 723 is hinged to the lower surface of its corresponding limit plate 845.

[0047] like Figure 2 and Figure 7As shown, the adjusting member 73 includes two elastic support seats 732 fixedly connected to the left end of the bottom surface of the groove on the base 1, and the top ends of the two elastic support seats 732 are fixedly connected to a T-shaped linkage frame 731. The front and rear ends of the horizontal section of the T-shaped linkage frame 731 are fixedly connected to a rack 1 733, and the rack 1 733 is engaged with the left end of its corresponding gear shaft 1 71. The right side surface of the vertical section of the T-shaped linkage frame 731 is an inclined surface that gradually rises from right to left.

[0048] During specific use, after the conveying component 6 drives the gear to move to the right to the test position, the conveying component 6 stops moving, and the staff controls the magnetization component 3 through the control box 2 to start magnetizing the gear. At the same time, the external conveying mechanism transports the magnetic suspension to the inside of the spray nozzle 832 through the liquid delivery pipe 834, and sprays it on the tooth surface of the gear through the spray nozzle 832. During the spraying process, the conveying component 6 drives the gear to rotate circumferentially to ensure the uniformity and comprehensiveness of the spraying. Then the staff illuminates the gear with a fluorescent lamp, observes the location of the defect and marks it. When the inspection is completed, the gear is demagnetized by the demagnetization component 5. After that, the conveying component 6 moves to the left, and then the gear that has completed the test is removed from the conveying component 6 by an external clamping device, and then a gear to be tested is replaced, and the above steps are repeated to perform surface flaw detection test.

[0049] When the gears of the same size are to be tested, the conveying assembly 6 moves to the left to the right side of the T-shaped linkage frame 731 and then stops moving. When the size of the next gear to be tested is different from that of the previous gear, the conveying assembly 6 moves to the left until it fits on the inclined surface on the right side of the T-shaped linkage frame 731. The left side of the conveying assembly 6 moves to the left to fit on the inclined surface on the right side of the T-shaped linkage frame 731, which produces downward pressure on the T-shaped linkage frame 731. The T-shaped linkage frame 731 drives the gear shaft 1 71 to rotate on the fixed seat 2 through the rack 1 733. The gear shaft 1 71 drives the T-shaped transmission frame 721 to move downward, and at the same time compresses the vertical section of the L-shaped support frame 722. At the same time, the limiting plate 845 is driven by the linkage rod 723. The top of the support plate 841 moves downward, so that the limit plate 845 is away from the limit groove on the lower surface of the support plate 841. At this time, the support plate 841 is no longer limited. Under the action of the elastic force of the upper limit spring on the limit slide bar 843, the support plate 841 is restored to its original position, and the support plate 841 drives the connecting rod 833 to restore the spray nozzle 832 to its original position. At the same time, after the support plate 841 is no longer restricted, under the action of the elastic force of the return spring rod 913 itself, the adjustment plate 911 and the rack three 922 are driven to return to their original positions synchronously, so that the position of the spray nozzle 832 can be readjusted before the next new size gear is tested to adapt to the new size gear, so that the spray nozzle 832 maintains a suitable spraying distance.

[0050] A method for testing transmission gears, which uses a testing device to test surface defects of transmission gears, includes the following steps: S1, an external clamping device places the gear to be tested on the upper surface of a conveying component 6, and a staff member controls the conveying component 6 to convey the gear to the right by operating a control box 2.

[0051] S2. When the gear passes between the two adjustment plates 911, the two adjustment plates 911 are pushed to move away from each other in contact with the gear.

[0052] S3. During the movement of the adjustment plate 911, the rack 2 912 cooperates with the gear shaft 2 924 to drive the rack 3 922 to move synchronously. The rack 3 922 synchronously adjusts the position of the support plate 841 through the linkage rod 923, thereby synchronously adjusting the position of the spray nozzle 832.

[0053] S4. After the position adjustment of the spray nozzle 832 is completed, the conveying component 6 transports the gear to be tested to the test position. At this time, the gear to be tested is magnetized by the magnetizing component 3, and the magnetic suspension is sprayed on the gear through the spray nozzle 832.

[0054] S5. The staff illuminates the gear with a fluorescent light, observes the location of defects on the gear, and marks them. After completing the test, the gear is demagnetized by the demagnetization component 5, and then moved to the left end of the base 1 by the conveying component 6. The tested gear is removed from the conveying component 6 by an external clamping device.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0056] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0058] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transmission gear testing device, comprising a base, a control box slidably mounted on the right side of the base, a magnetizing assembly fixedly mounted on the right side of the base, an inverted L-shaped bracket fixedly mounted on the right end of the inner side of the base, a demagnetizing assembly slidably mounted on the inverted L-shaped bracket, and a conveying assembly mounted on the inner side of the base, characterized in that: The base and the inverted L-shaped bracket are both provided with a spraying mechanism for spraying magnetic suspension liquid; An adaptor mechanism for adjusting the position of the spray mechanism according to the gear diameter is provided on the base; An adjustment mechanism for adjusting the limit state of the spray mechanism is provided on the base; The spray mechanism includes a spray element arranged above the base for spraying the magnetic suspension liquid. A support element for adjusting the position of the spray element is provided on the upper surface of the base below the spray element. An elastic telescopic rod is hinged on the top of the spray element, and a carrying ring is fixedly connected to the inverted L-shaped bracket. The adapting mechanism includes an adapting member provided on the upper surface of the base for adapting to the diameter of the gear, and a synchronizing member for linking the adapting member and the supporting member is provided on the upper surface of the base; The adapter adjusts the position of the spray part through the synchronizer according to the gear diameter, and the elastic telescopic rod limits the spray part so that the spray part can fully spray the magnetic suspension on gears of different sizes. The support member includes two groups of front-to-back symmetrical limiting sliding sleeves fixedly connected to the upper surface of the base, the interior of the limiting sliding sleeve is slidably connected to a support plate along the front-to-back direction, the end of the support plate away from the base is fixedly connected to a limiting sliding rod, a return spring is provided between the outer circumference of the limiting sliding rod and the upper surface of the limiting sliding sleeve, the lower surface of the support plate is hinged to the limiting plate, and the left and right sides of the limiting plate are hinged with a telescopic pull rod, and the end of the telescopic pull rod away from the limiting plate is hinged to the limiting sliding sleeve; The lower surface of the support plate is evenly provided with limiting grooves, the limiting plate is engaged with the limiting grooves, the side of the limiting groove close to the base is an inclined surface, and the side of the limiting groove away from the base is a vertical surface.

2. A transmission gear testing device according to claim 1, characterized in that: The spray part includes a connecting rod rotatably connected to the upper surface of the support plate, and a plurality of spray nozzles evenly distributed up and down are fixedly connected to the circumferential surface of the connecting rod. The upper surface of the support plate is located on the side of the connecting rod away from the center of the base and is fixedly connected to a sickle-shaped bracket. The top end of the connecting rod passes through the horizontal section of the sickle-shaped bracket and is rotatably connected to the horizontal section of the sickle-shaped bracket. The top end of the connecting rod is hinged to the elastic telescopic rod, and a liquid delivery pipe is fixed on and passes through the multiple spray nozzles corresponding to the same connecting rod.

3. The transmission gear testing device according to claim 1, characterized in that: The adapter includes two symmetrical mounting seats fixedly connected to the front and rear surfaces of the base, and two return spring rods distributed on the left and right are fixedly installed on the mounting seats. The telescopic ends of the two return spring rods are fixedly connected to an adjustment plate. A side of the adjustment plate away from the center of the base is fixedly connected to a second rack, and an end of the second rack away from the adjustment plate passes through the mounting seat and slides with the mounting seat.

4. The transmission gear testing device according to claim 1, characterized in that: The synchronizer includes two front-to-rear symmetrical limiting sleeves 2 fixedly connected to the base, a rack 3 is slidably connected inside the limiting sleeve 2 along the front-to-rear direction, a gear shaft 2 is rotatably connected to the position of the base corresponding to the limiting sleeve 2 through a fixed seat 1, an end of the rack 3 close to the center of the base is fixedly connected to a linkage rod, and an end of the rack 3 away from the center of the base is meshed with the gear shaft 2.

5. The transmission gear testing device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment member arranged at the left end of the base, and control members are arranged on the front and rear sides of the base. The front and rear sides of the base are located between the control member and the adjustment member and are rotatably connected to the gear shaft one through the fixed seat two.

6. The transmission gear testing device according to claim 5, characterized in that: The control component includes two L-shaped support frames distributed on the left and right and fixedly connected to the base. The vertical sections of the L-shaped support frames distributed on the left and right are telescopically set. The vertical sections of the two L-shaped support frames distributed on the left and right are commonly fixedly connected to a T-shaped transmission frame. The vertical section of the T-shaped transmission frame is provided with teeth on a surface close to the base, and the upper surface of the horizontal section of the T-shaped transmission frame is fixedly connected to two left-right symmetrical linkage rods.

7. The transmission gear testing device according to claim 5, characterized in that: The adjusting member includes two elastic support seats fixedly connected to the left end of the bottom surface of the groove on the base, and the top ends of the two elastic support seats are fixedly connected to a T-shaped linkage frame. The front and rear ends of the horizontal section of the T-shaped linkage frame are fixedly connected to a rack 1, and the rack 1 is engaged with the left end of its corresponding gear shaft 1. The right side surface of the vertical section of the T-shaped linkage frame is an inclined surface that gradually rises from right to left.

8. A method for testing a transmission gear, carried out in conjunction with the testing device according to any one of claims 1 to 7, characterized in that: A method for testing surface defects of a transmission gear using a testing device comprises the following steps: S1, placing the gear to be tested on the upper surface of a conveying assembly, and controlling the conveying assembly to convey the gear to the right by operating a control box; S2. When the gear passes through the adapter, the adapter fits the gear to adjust its position; S3. During the process of adjusting the position of the adapter, the synchronizing member is driven to synchronously adjust the position of the supporting member, thereby synchronously adjusting the position of the spraying member; S4. After the spraying part position is adjusted, the conveying component transports the gear to the test position, magnetizes the gear through the magnetizing component, and sprays the magnetic suspension on the gear through the spraying part; S5. Shine a fluorescent light on the gear, observe the location of defects on the gear, and mark them. After the test is completed, demagnetize the gear through the demagnetization component. Then, move it to the left end of the base through the conveying component, and finally remove the tested gear from the conveying component.

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