Transmission gear testing device and method

Abstract

The invention relates to the technical field of gear detection, in particular to a transmission gear testing device and method.The transmission gear testing device comprises a base with a groove formed in the upper surface, a control box is slidably installed on the right side of the base, a magnetization assembly is fixedly installed on the right side face of the base, and an inverted-L-shaped support is fixedly installed at the right end in the groove in the base; an inverted-L-shaped support is installed on the base, a demagnetizing assembly is slidably installed on the inverted-L-shaped support, a conveying assembly is installed in a groove of the base, a spraying mechanism for spraying magnetic suspension is jointly arranged on the base and the inverted-L-shaped support, and the position of the spraying mechanism is synchronously adjusted by adapting the diameter of a gear through an adaptive mechanism. The magnetic suspension spraying device can ensure that a proper magnetic suspension spraying position can be kept when flaw detection is carried out on gears with different diameters, so that the magnetic suspension can uniformly and comprehensively cover teeth of the gears, and the damage position can be displayed more comprehensively and obviously when flaw detection is carried out on the gears subsequently; and the situation that the damaged position is missed is avoided.

Description

Technical Field

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

[0002] After ferromagnetic transmission gears are cast, forged, machined, ground, welded or heat-treated, surface cracks or defects may occur due to process stress or temperature changes. At this time, magnetic particle flaw detection devices are required to detect flaws to ensure that there are no cracks, folds or inclusion defects on their surfaces or near surfaces. At the same time, some transmission gears used in high-load environments also need to be detected before installation.

[0003] When using a magnetic particle flaw detection device to detect the surface of gears, in the usual magnetic suspension liquid spraying method, the position of the magnetic suspension liquid spraying head used is fixed. By spraying for a long time and increasing the spraying amount, the uniformity and comprehensiveness of the magnetic suspension liquid covering the gear surface are ensured. This method will increase the entire test duration, and when conducting batch tests, it will affect the test efficiency; at the same time, long-term magnetic suspension liquid spraying will also increase the splashing amount of the magnetic suspension liquid on the gears, affecting the cleanliness of the test environment. Summary of the Invention

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

[0005] A test device for transmission gears provided by the present invention includes a base. A control box is slidably installed on the right side of the base. A magnetization assembly is fixedly installed on the right side surface of the base. An inverted L-shaped bracket is fixedly installed at the right end inside the base. A demagnetization assembly is slidably installed on the inverted L-shaped bracket. A conveying assembly is installed inside the base. A spraying mechanism for spraying magnetic suspension liquid is jointly provided on the base and the inverted L-shaped bracket. The test device further includes an adaptation mechanism provided on the base for adjusting the position of the spraying mechanism, and an adjustment mechanism provided on the base for adjusting the limiting state of the spraying mechanism. Protection shells are fixedly installed on the front and rear surfaces of the base.

[0006] The spraying mechanism includes a spraying member for spraying magnetic suspension liquid above the base. A support member for adjusting the position of the spraying member is provided on the upper surface of the base below the spraying member. An elastic telescopic rod is hinged to the top end of the spraying member. A bearing ring is fixedly connected to the inverted L-shaped bracket.

[0007] The adaptation mechanism includes an adaptation member provided on the upper surface of the base for adapting to the gear diameter. A synchronization member for linking the adaptation member and the support member is provided on the upper surface of the base.

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

[0009] According to an embodiment of the present invention, the support member includes two groups of front and rear symmetrically arranged limiting sliding sleeves I fixedly connected to the upper surface of the base. A support plate is slidably connected in the limiting sliding sleeve I along the front and rear directions. One end of the support plate away from the base is fixedly connected with a limiting sliding rod. A return spring is arranged between the outer circumferential surface of the limiting sliding rod and the upper surface of the limiting sliding sleeve I. The lower surface of the support plate is hinged with a limiting plate. Telescopic pull rods are hinged to the left and right sides of the limiting plate respectively. One end of the telescopic pull rod away from the limiting plate is hinged with the limiting sliding sleeve I.

[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 in clamping fit with the limiting grooves. One 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 spraying member includes an adapter rod rotatably connected to the upper surface of the support plate. A plurality of spray nozzles evenly distributed up and down are fixedly connected to the circumferential surface of the adapter rod. A sickle-shaped bracket is fixedly connected to the upper surface of the support plate on the side of the adapter rod away from the center of the base. The top end of the adapter rod penetrates 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 adapter rod is hinged with the elastic telescopic rod. A liquid delivery pipe is fixedly connected and penetrates through a plurality of spray nozzles corresponding to the same adapter rod.

[0012] According to an embodiment of the present invention, the adapter includes two symmetrically arranged mounting seats fixedly connected to the front and rear surfaces of the base. Two left and right distributed return spring rods are fixedly installed on the mounting seats. The telescopic ends of the two return spring rods are jointly fixedly connected with an adjusting plate. A rack II is fixedly connected to the side of the adjusting plate away from the center of the base. One end of the rack II away from the adjusting plate penetrates through the mounting seat and is slidably matched with the mounting seat.

[0013] According to an embodiment of the present invention, the synchronizing member includes two front and rear symmetrically arranged limiting sliding sleeves II fixedly connected to the base. A rack III is slidably connected in the limiting sliding sleeve II along the front and rear directions. A gear shaft II is rotatably connected to the position of the base corresponding to the limiting sliding sleeve II through a fixing seat I. One end of the rack III close to the center of the base is fixedly connected with a linkage pull rod. The end of the rack III away from the center of the base is meshed with the gear shaft II.

[0014] According to an embodiment of the present invention, the adjusting mechanism includes an adjusting member arranged at the left end of the base. Control members are arranged on the front and rear sides of the base. Gear shafts I are rotatably connected to the front and rear sides of the base between the control members and the adjusting member through fixing seats II.

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

[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. The tops of the two elastic support seats are commonly fixedly connected with a T-shaped linkage frame. Rack one is fixedly connected to both the front and rear ends of the horizontal section of the T-shaped linkage frame. Rack one meshes with the left end of the corresponding gear shaft one. 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 testing method for a transmission gear, a method for testing surface defects of a transmission gear using a testing device, includes the following steps: S1. Place the gear to be tested on the upper surface of the conveying assembly. The staff controls the conveying assembly to convey the gear to the right by operating the control box.

[0018] S2. When the gear passes through the adapter, the adapter fits the gear for position adjustment.

[0019] S3. During the position adjustment 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 position adjustment of the spraying member is completed, the conveying assembly transports the gear to the testing position, magnetizes the gear through the magnetization assembly, and simultaneously sprays the magnetic suspension liquid on the gear through the spraying member.

[0021] S5. Irradiate the gear with a fluorescent lamp, observe the positions where defects appear on the gear, and mark them. After the test is completed, demagnetize the gear through the demagnetization assembly. Then, move to the left end of the base through the conveying assembly. Finally, remove the tested gear from the conveying assembly.

[0022] Applying the technical solution of the present invention has at least the following beneficial effects: 1. By adapting the diameter of the gear through the adaptation mechanism to synchronously adjust the position of the spraying mechanism, it can ensure that when detecting different diameters of gears, the appropriate spraying position of the magnetic suspension liquid can be maintained, so that the magnetic suspension liquid can uniformly and comprehensively cover the tooth teeth of the gear, ensuring that the damaged positions are more comprehensively and clearly displayed during the subsequent detection of the gear, and avoiding the situation where damaged positions are missed.

[0023] 2. By means of the elastic telescopic rod cooperating with the spraying member, during the process of adjusting the position of the spraying member in the front-back direction, the center of the spraying coverage area of the spraying member can always face the center of the circle of the gear, so as to ensure that the spraying range of the spraying member can cover as much as possible the tooth surface of the gear, enabling the magnetic suspension liquid to be sprayed on the gear quickly and evenly, reducing the spraying duration of the magnetic suspension liquid, improving the testing efficiency, and reducing the splashing amount of the magnetic suspension liquid to ensure the cleanliness of the testing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

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

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

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

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

[0029] Figure 5 is provided by the present invention Figure 4 an enlarged view of part A in

[0030] Figure 6 is a three-dimensional structural schematic diagram of the spraying member provided by the present invention.

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

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

[0033] Reference numerals: 1, base; 2, control box; 3, magnetization assembly; 4, inverted L-shaped bracket; 5, demagnetization assembly; 6, conveying assembly; 7, adjustment mechanism; 8, spraying mechanism; 9, adaptation mechanism; 10, protective housing; 71, first gear shaft; 72, control member; 73, adjustment member; 81, bearing ring; 82, elastic telescopic rod; 83, spraying member; 84, support member; 91, adapter; 92, synchronizing member; 721, T-shaped transmission frame; 722, L-shaped support frame; 723, linkage rod; 731, T-shaped linkage frame; 732, elastic support seat; 733, first rack; 831, sickle-shaped bracket; 832, spray nozzle; 833, connecting rod; 834, liquid supply pipe; 841, support plate; 842, first limit sliding sleeve; 843, limit sliding rod; 844, telescopic pull rod; 845, limit plate; 911, adjustment plate; 912, second rack; 913, reset spring rod; 914, mounting seat; 921, second limit sliding sleeve; 922, third rack; 923, linkage pull rod; 924, second gear shaft. Detailed implementation manners

[0034] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] As Figure 1 shown, a test device for a transmission gear includes a base 1 with a groove provided on its upper surface. A control box 2 is slidably installed on the right side of the base 1. A magnetization assembly 3 is fixedly installed on the right side surface of the base 1. An inverted L-shaped bracket 4 is fixedly installed at the right end inside the groove on the base 1. A demagnetization assembly 5 is slidably installed on the inverted L-shaped bracket 4. A conveying assembly 6 is installed inside the groove of the base 1. The conveying assembly 6 uses the prior art and is used to drive the gear to move linearly left and right and rotate circumferentially. A spraying mechanism 8 for spraying magnetic suspension liquid is jointly provided on the base 1 and the inverted L-shaped bracket 4. The test device further includes an adaptation mechanism 9 for adjusting the position of the spraying mechanism 8. The adaptation mechanism 9 is provided on the base 1 at a position to the left of the spraying mechanism 8. The test device further includes an adjustment mechanism 7 for adjusting the limiting state of the spraying mechanism 8. The adjustment mechanism 7 is provided on the base 1. Protective housings 10 for protecting the spraying mechanism 8 and the adaptation mechanism 9 are fixedly installed on the front and rear surfaces of the base 1. The control box 2 is controlled by using the prior mature technology and will not be specifically described herein.

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

[0037] As Figure 2 and Figure 3 shown, the adapter 91 includes two symmetric mounting seats 914 fixedly connected to the front and rear surfaces of the base 1. Two reset spring rods 913 distributed left and right are fixedly mounted on the mounting seats 914. The telescopic ends of the two reset spring rods 913 are commonly fixedly connected to an adjusting plate 911. The left ends of the two adjusting plates 911 together form a flared shape. A second rack 912 is fixedly connected to the surface of the adjusting plate 911 away from the center of the base 1. One end of the second rack 912 away from the adjusting plate 911 penetrates through the mounting seat 914 and is slidably engaged with the mounting seat 914.

[0038] As Figure 2 and Figure 3 shown, the synchronizer 92 includes two symmetrically arranged second limit sliding sleeves 921 fixedly connected to the base 1. A third rack 922 is slidably connected in the second limit sliding sleeves 921 in the front-rear direction. A gear shaft two 924 is rotatably connected to the base 1 at a position corresponding to the second limit sliding sleeve 921 through a first fixing seat. One end of the third rack 922 close to the center of the base 1 is fixedly connected to a linkage rod 923. The end of the third rack 922 away from the center of the base 1 is engaged with the gear shaft two 924.

[0039] During specific use, first, an external clamping device places the gear to be tested at the center position on the upper surface of the conveying assembly 6. The staff operates the control box 2 to control the conveying assembly 6 to convey the gear to the right. When the gear moves past between the two adjusting plates 911 along with the conveying assembly 6, the flared shape formed by the left ends of the two adjusting plates 911 enables the gear to smoothly pass between the two adapters 91. While the gear slides along the adjusting plate 911, a thrust in the direction away from its axis is generated on the adjusting plate 911. The adjusting plate 911 pushes the reset spring rod 913 to compress, and at the same time pushes the second rack 912 to slide synchronously on the mounting seat 914. When the second rack 912 slides on the mounting seat 914, it drives the gear shaft two 924 to rotate on the first fixing seat, and the gear shaft two 924 drives the third rack 922 to slide away from the base 1 along the second limit sliding sleeve 921.

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

[0041] As Figure 2 , Figure 4 and Figure 5 shown in the figure, the support member 84 includes two sets of front and rear symmetrically arranged first limit sliding sleeves 842 fixedly connected to the upper surface of the base 1. The number of each set of first limit sliding sleeves 842 is two and they are symmetrically arranged left and right. A support plate 841 is slidably connected in the first limit sliding sleeves 842 along the front and rear direction. One end of the support plate 841 away from the base 1 is fixedly connected with a limit sliding rod 843. A return spring is arranged between the outer circumferential surface of the limit sliding rod 843 and the upper surface of the first limit sliding sleeve 842. A limit plate 845 is hinged to the lower surface of the first limit sliding sleeve 842. Telescopic pull rods 844 are hinged to the left and right sides of the limit plate 845. One end of the telescopic pull rod 844 away from the limit plate 845 is hinged to the first limit sliding sleeve 842. Limit grooves are uniformly formed on the lower surface of the support plate 841. The limit plate 845 is in clamping fit with the limit grooves. The side of the limit groove close to the base 1 is an inclined surface, and the side of the limit groove away from the base 1 is a vertical surface.

[0042] During specific use, when the second gear shaft 924 drives the third rack 922 to slide in the second limit sliding sleeve 921 in a direction away from the base 1, the third rack 922 drives the support plate 841 to move synchronously through the linkage pull rod 923 in cooperation with the spraying member 83. Due to the setting direction of the inclined surface, the support plate 841 can only move in a direction away from the base 1. At this time, the inclined surface of the limit groove on the lower surface of the support plate 841 slides along the top end of the limit plate 845. At the same time, under the elastic force of the telescopic pull rod 844, an obliquely upward pulling force is generated on the limit plate 845, so that the top end of the limit plate 845 is always clamped inside the limit groove on the lower surface of the support plate 841 and abuts against the vertical surface inside the limit groove, so that the support plate 841 can only move in a direction away from the base 1 inside the first limit sliding sleeve 842. At the same time, the support plate 841 pulls the limit sliding rod 843 to move synchronously and compresses the return spring on the limit sliding rod 843.

[0043] As Figure 2 and Figure 6As shown in the figure, the spraying member 83 includes a connecting rod 833 rotatably connected to the upper surface of the support plate 841. A plurality of spray nozzles 832 are fixedly connected to the circumferential surface of the connecting rod 833 and are evenly distributed up and down. A sickle-shaped bracket 831 is fixedly connected to the upper surface of the support plate 841 on the side away from the center of the base 1. The linkage pull rod 923 is fixedly connected to its corresponding sickle-shaped bracket 831. The top end 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 end of the connecting rod 833 is hinged to the elastic telescopic rod 82. A liquid supply pipe 834 is fixedly connected to and penetrates through a plurality of spray nozzles 832 corresponding to the same connecting rod 833. The top ends of the four liquid supply pipes 834 are gathered together through a hose, and the magnetic suspension liquid is uniformly transported through an external conveying mechanism.

[0044] During specific use, when the support plate 841 moves inside the first limit sliding sleeve 842, the support plate 841 drives the connecting rod 833 to move synchronously. During the process of the connecting rod 833 moving in the front and rear directions along 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 moving in the front and rear 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 faces the center position of the bearing ring 81, and in cooperation with the expansion and contraction of the elastic telescopic rod 82 itself, it is ensured that during the process of adjusting the opening direction of the spray nozzle 832, the center of the opening of the spray nozzle 832 always faces the center position of the bearing ring 81.

[0045] As Figure 1 and Figure 2 As shown in the figure, the adjusting mechanism 7 includes an adjusting member 73 provided at the left end of the base 1. Control members 72 are provided on the front and rear sides of the base 1. A first gear shaft 71 is rotatably connected between the control member 72 and the adjusting member 73 on the front and rear sides of the base 1 through a second fixing seat.

[0046] As Figure 2 and Figure 8 As shown in the figure, the control member 72 includes two L-shaped support frames 722 fixedly connected to the base 1 and distributed left and right. The vertical sections of the L-shaped support frames 722 are telescopically arranged. A T-shaped transmission frame 721 is fixedly connected to the vertical sections of the two L-shaped support frames 722 distributed left and right. Teeth are provided on the surface of the vertical section of the T-shaped transmission frame 721 close to the base 1. Two symmetrically distributed linkage rods 723 are fixedly connected to the upper surface of the horizontal section of the T-shaped transmission frame 721. The top ends of the linkage rods 723 are hinged to the lower surfaces of their corresponding limiting plates 845.

[0047] As Figure 2 and Figure 7As shown in the figure, 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. The top ends of the two elastic support seats 732 are fixedly connected to a T-shaped linkage 731. Rack 733 is fixedly connected to both the front and rear ends of the horizontal section of the T-shaped linkage 731. Rack 733 meshes with the left end of the corresponding first gear shaft 71. The right side surface of the vertical section of the T-shaped linkage 731 is an inclined surface that gradually rises from right to left.

[0048] During specific use, after the conveying assembly 6 drives the gear to move to the test position to the right, the conveying assembly 6 stops moving. The staff controls the magnetization assembly 3 to start magnetizing the gear through the control box 2. At the same time, the external conveying mechanism conveys the magnetic suspension liquid into 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 assembly 6 drives the gear to rotate circumferentially to ensure the uniformity and comprehensiveness of the spraying. Then, the staff irradiates the gear with a fluorescent lamp, observes the defective positions and marks them. When the detection is completed, the demagnetization assembly 5 demagnetizes the gear. After that, the conveying assembly 6 moves to the left, and then the tested gear is removed from the conveying assembly 6 by an external clamping device. Then, a gear to be detected is placed again, and the above steps are repeated for surface flaw detection testing.

[0049] When detecting gears of the same size, the conveying assembly 6 moves to the left and stops after reaching the right side of the T-shaped linkage 731. When the size of the next gear to be detected is different from that of the previous gear, the conveying assembly 6 moves to the left and fits against the inclined surface on the right side of the T-shaped linkage 731. The left side of the conveying assembly 6 moves to the left and fits against the inclined surface on the right side of the T-shaped linkage 731, generating a downward pressure on the T-shaped linkage 731. The T-shaped linkage 731 drives the first gear shaft 71 to rotate on the second fixed seat through the rack 733. The first gear shaft 71 drives the T-shaped transmission frame 721 to move downward, compressing the vertical section of the L-shaped support frame 722 at the same time. At the same time, the top end of the limiting plate 845 is driven to move downward through the linkage rod 723, causing the limiting plate 845 to move away from the limiting 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 limiting spring on the limiting slide rod 843, the support plate 841 is restored to its original position. 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 limited, under the action of the elastic force of the reset spring rod 913 itself, it drives the adjusting plate 911 and the third rack 922 to be restored to their original positions synchronously, so that the position of the spray nozzle 832 is readjusted before the next new-sized gear is tested, in order to adapt to the new-sized gear and keep the spray nozzle 832 at an appropriate spraying distance.

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

[0051] S2. When the gear passes between the two adjusting plates 911, it pushes the two adjusting plates 911 to move away from each other while fitting against the gear.

[0052] S3. During the movement of the adjusting plate 911, the rack two 912 cooperates with the gear shaft two 924 to drive the rack three 922 to move synchronously. The rack three 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 of the spray nozzle 832 is adjusted, 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 magnetization component 3, and at the same time, a magnetic suspension liquid is sprayed on the gear through the spray nozzle 832.

[0054] S5. The staff irradiates the gear with a fluorescent lamp, observes the positions where defects appear on the gear, and makes markings. After the test is completed, the gear is demagnetized by the demagnetization component 5, then moves to the left end of the base 1 through the conveying component 6, and the tested gear is removed from the conveying component 6 by the external clamping device.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation to the present invention.

[0056] In addition, the terms "first", "second", "No. 1", "No. 2" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "No. 1", "No. 2" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly specified or defined, the terms "installed", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A testing device for a transmission gear, comprising a base, a control box is slidably installed on the right side of the base, a magnetization assembly is fixedly installed on the right side surface of the base, an inverted L-shaped bracket is fixedly installed at the right end inside the base, a demagnetization assembly is slidably installed on the inverted L-shaped bracket, and a conveying assembly is installed inside the base, characterized in that: A spraying mechanism for spraying magnetic suspension liquid is jointly provided on the base and the inverted L-shaped bracket; An adaptation mechanism for adjusting the position of the spraying mechanism according to the gear diameter is provided on the base; An adjusting mechanism for adjusting the limiting state of the spraying mechanism is provided on the base; The spraying mechanism includes a spraying member for spraying magnetic suspension liquid above the base. A support member for adjusting the position of the spraying member is provided on the upper surface of the base below the spraying member. An elastic telescopic rod is hinged to the top end of the spraying member, and a bearing ring is fixedly connected to the inverted L-shaped bracket; The adaptation mechanism includes an adapter for adapting to the gear diameter provided on the upper surface of the base. A synchronizing member for linking the adapter and the support member is provided on the upper surface of the base; The adapter adjusts the position of the spraying member through the synchronizing member according to the gear diameter, and cooperates with the limiting of the spraying member by the elastic telescopic rod so that the spraying member can spray magnetic suspension liquid on different-sized gears comprehensively.

2. The testing device for a transmission gear according to claim 1, characterized in that: The support member includes two groups of symmetrically arranged front and rear limiting sliding sleeves one fixedly connected to the upper surface of the base. A support plate is slidably connected in the front and rear directions inside the limiting sliding sleeve one. One end of the support plate away from the base is fixedly connected with a limiting sliding rod. A return spring is arranged between the outer circumferential surface of the limiting sliding rod and the upper surface of the limiting sliding sleeve one. A limiting plate is hinged to the lower surface of the support plate. Telescopic pull rods are hinged to the left and right sides of the limiting plate. One end of the telescopic pull rod away from the limiting plate is hinged to the limiting sliding sleeve one.

3. The testing device for a transmission gear according to claim 2, characterized in that: Limiting grooves are uniformly formed on the lower surface of the support plate. The limiting plate is in clamping fit 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.

4. The testing device for a transmission gear according to claim 2, characterized in that: The spraying member includes an adapter rod rotatably connected to the upper surface of the support plate. A plurality of spray nozzles evenly distributed up and down are fixedly connected to the circumferential surface of the adapter rod. A sickle-shaped bracket is fixedly connected to the upper surface of the support plate on the side of the adapter rod away from the center of the base. The top end of the adapter rod penetrates 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 adapter rod is hinged to the elastic telescopic rod. A liquid supply pipe is fixedly connected and penetrates through a plurality of spray nozzles corresponding to the same adapter rod.

5. The testing device for a transmission gear according to claim 1, wherein: The adapter includes two symmetrically arranged mounting seats fixedly connected to the front and rear surfaces of the base. Two reset spring rods distributed left and right are fixedly installed on the mounting seats. The telescopic ends of the two reset spring rods are jointly fixedly connected with an adjusting plate. A rack two is fixedly connected to the side of the adjusting plate away from the center of the base. One end of the rack two away from the adjusting plate penetrates through the mounting seat and is slidably matched with the mounting seat.

6. The testing device for a transmission gear according to claim 1, characterized in that: The synchronizing member includes two symmetrically arranged front and rear limiting sliding sleeves two fixedly connected to the base. A rack three is slidably connected in the front and rear directions inside the limiting sliding sleeve two. A gear shaft two is rotatably connected to the position corresponding to the limiting sliding sleeve two on the base through a fixing seat one. One end of the rack three close to the center of the base is fixedly connected with a linkage pull rod. The end of the rack three away from the center of the base meshes with the gear shaft two.

7. The test device for a transmission gear according to claim 1, characterized in that: The adjusting mechanism includes an adjusting member provided at the left end of the base. Control members are provided on the front and rear sides of the base. Gear shafts one are rotatably connected to the front and rear sides of the base between the control members and the adjusting member through fixing seats two.

8. The testing device for a transmission gear according to claim 7, wherein: The control member includes two L-shaped support frames distributed left and right and fixedly connected to the base. The vertical sections of the L-shaped support frames are telescopically arranged. The vertical sections of the two L-shaped support frames distributed left and right are commonly and fixedly connected with a T-shaped transmission frame. Teeth are arranged on the surface of the vertical section of the T-shaped transmission frame close to the base. Two symmetrically distributed left and right linkage rods are fixedly connected to the upper surface of the horizontal section of the T-shaped transmission frame.

9. The test device for a transmission gear according to claim 7, wherein: The adjusting member includes two elastic support seats fixedly connected to the left end of the bottom surface of the groove on the base. The tops of the two elastic support seats are commonly and fixedly connected with a T-shaped linkage frame. Rack 1 is fixedly connected to both the front and rear ends of the horizontal section of the T-shaped linkage frame. Rack 1 meshes with the left end of the 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.

10. A testing method for a transmission gear, which is completed in cooperation with the testing device according to any one of the above claims 1-9, characterized in that, A method for testing surface defects of a transmission gear using a testing device includes the following steps: S1. Place the gear to be tested on the upper surface of the conveying component. By operating the control box, control the conveying component to convey the gear to the right; S2. When the gear passes through the adapter, the adapter fits against the gear for position adjustment; S3. During the position adjustment of the adapter, drive the synchronizing member to synchronously adjust the position of the support member, thereby synchronously adjusting the position of the spraying member; S4. After the position adjustment of the spraying member is completed, the conveying component transports the gear to the testing position, magnetize the gear through the magnetization component, and simultaneously spray the magnetic suspension liquid on the gear by the spraying member; S5. Irradiate the gear with a fluorescent lamp, observe the positions where defects appear on the gear and mark them. After the test is completed, demagnetize the gear through the demagnetization component. Then, move to the left end of the base through the conveying component. Finally, remove the tested gear from the conveying component.

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