A gear testing device

Abstract

This utility model belongs to the field of gear inspection technology, and specifically relates to a gear inspection device. To improve inspection efficiency, this utility model proposes a gear inspection device. The gear inspection device includes a bracket, on which a first camera and a rotary drive mechanism for driving gear rotation are mounted. The first camera is located above the rotary drive mechanism to photograph the upper surface of the gear. The rotary drive mechanism includes a rotary power source and a support column for supporting the gear in mid-air. The support column extends vertically and is connected to the output end of the rotary power source. The support column includes a frustum section with an anti-slip layer on its side to support the gear and drive it to rotate through friction. A second camera for photographing the lower surface of the gear is also mounted on the bracket. By using the support column to support the gear in mid-air, the upper and lower surfaces of the gear can be inspected simultaneously using the cameras. Each gear only needs to be inspected once, resulting in high inspection efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of gear testing technology, and in particular relates to a gear testing device. Background Technology

[0002] Gears are an important mechanical transmission component. After the gears are manufactured, they need to be inspected to determine whether they are qualified.

[0003] In the original technology, workers mostly used rulers and visual inspection to check the quality of gears, which was inefficient and inaccurate.

[0004] To address the aforementioned issues, Chinese utility model patent CN203422324U, with an authorization announcement date of February 5, 2014, discloses a visual inspection device for defects in automotive gearbox gears. This inspection device includes a fixed bracket, on which a motor and three sets of cameras are mounted. The output end of the motor is equipped with a turntable for fixing the gears (the turntable and the motor together constitute a rotation drive mechanism). The three sets of cameras are located directly above, to the side, and diagonally above the turntable, respectively.

[0005] During testing, a motor drives a turntable to rotate, which in turn rotates the gears located on the turntable; three sets of cameras are used to photograph the gears, laying the foundation for subsequent computer testing to determine whether the gears are qualified; the computer is used to determine whether the gears are qualified based on the images captured by the cameras.

[0006] When using the above-mentioned detection device, since the camera cannot capture the lower surface of the gear, the same gear needs to be detected twice, and the detection efficiency is still low. Utility Model Content

[0007] The purpose of this invention is to provide a gear inspection device to solve the technical problem that current inspection devices require two separate inspections of the upper and lower surfaces of the gear, resulting in low inspection efficiency.

[0008] To achieve the above objectives, the technical solution of the gear testing equipment provided by this utility model is as follows:

[0009] A gear inspection device includes a bracket, on which a first camera and a rotary drive mechanism for driving the gear to rotate are mounted. The first camera is located above the rotary drive mechanism for photographing the upper surface of the gear. The rotary drive mechanism includes a rotary power source and a support column for supporting the gear in mid-air. The support column extends vertically and is connected to the output end of the rotary power source. The support column includes a frustum section whose outer diameter gradually increases from top to bottom. The frustum section has an anti-slip layer on its side or is made of an anti-slip material to support the gear and drive it to rotate through friction. A second camera for photographing the lower surface of the gear is also mounted on the bracket.

[0010] Furthermore, the bracket is also equipped with at least three pressing mechanisms for pressing down on the upper surface of the gear to straighten the gear. The pressing mechanism includes a direct-acting power source and a lifting plate connected to the output end of the direct-acting power source. At least three pressing rods are connected to the lower end of the lifting plate. The lower end of each pressing rod is provided with a pressing part for pressing down on the upper surface of the gear. All pressing parts are located at the same height. The first camera is installed on the lower end of the lifting plate.

[0011] Furthermore, a ball bearing is installed at the lower end of the pressure rod. The ball bearing is used to press against the upper surface of the gear and forms the pressing part.

[0012] Furthermore, all the pressure rods are evenly spaced on the same circumference, and the axis of the circumference enclosed by the pressure rods, the axis of the lifting plate, and the axis of the support column coincide.

[0013] Furthermore, the bracket is also equipped with a laser displacement sensor located on the left or right side of the support column and used to measure the outer circumference of the gear.

[0014] Furthermore, the bracket includes a mounting plate with vertically extending guide holes. The front and / or rear sides of the guide holes have multiple threaded holes arranged vertically at intervals. The gear testing equipment also includes a fixed frame that passes through the guide holes. The front and rear sidewalls of the fixed frame are used for guiding and sliding cooperation with the hole walls of the guide holes. The laser displacement sensor is fixed on the fixed frame. The fixed frame has bolt holes for bolts to pass through, and the fixed frame is fixedly connected to some of the threaded holes by bolts.

[0015] Furthermore, the support frame is equipped with an electric lifting platform located on the side of the support column, and a laser displacement sensor for measuring the outer circumference of the gear is installed on the electric lifting platform.

[0016] Furthermore, the bracket includes a base plate, legs, and a mounting plate. The legs are mounted on the bottom of the base plate. The mounting plate includes a vertical plate mounted on the upper surface of the base plate and a horizontal plate connected to the upper surface of the vertical plate. A pressing mechanism is mounted on the lower surface of the horizontal plate. A rotary power source is mounted on the lower surface of the base plate. The base plate has through holes for the output end of the rotary power source and / or the support column to pass through. The second camera is mounted or placed on the upper surface of the base plate.

[0017] Furthermore, the lower part of the support column has a baffle and a drive shaft. The baffle is located above the perforation and is used to cover the perforation. The drive shaft is located below the baffle and is used to drive the output end of the rotating power source. The second camera is arranged adjacent to the baffle.

[0018] Furthermore, the rotary power source is a rotary motor, and the output shaft of the rotary motor is connected to the support column via a transmission connection; the direct-acting power source is a direct-acting cylinder, and the output end of the direct-acting cylinder is connected to the lifting plate via a transmission connection.

[0019] The beneficial effects of the gear inspection device provided by this utility model are as follows: This utility model is an improved invention. The main difference between this utility model and the prior art is that in the prior art, the gear is driven to rotate by a turntable, while in this embodiment, the gear is supported in mid-air by the frustum section of the support column, and the gear is driven to rotate by the support column, so that the upper and lower surfaces of the gear can be photographed simultaneously by a camera.

[0020] To facilitate understanding by those skilled in the art, the beneficial effects of the gear testing equipment of this utility model will be described in detail below in conjunction with specific usage.

[0021] During testing, firstly, the gear is installed on the support column from top to bottom, ensuring that the gear's axis extends vertically. At this point, the lower part of the gear's inner hole contacts the side of the anti-slip layer or the frustum section. Then, a rotating power source drives the support column to rotate slowly. The side of the anti-slip layer or the frustum section, through friction, causes the gear to rotate synchronously with the support column. The first and second cameras capture images of the upper and lower surfaces of the gear. Finally, the captured images are analyzed by a computer to obtain the final test results.

[0022] In summary, this invention can simultaneously capture images of both the upper and lower surfaces of the gear, enabling the collection of gear information in a single operation. This lays the foundation for completing gear inspection in one go and improves inspection efficiency. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the gear testing equipment of this utility model from one perspective during use;

[0024] Figure 2 This is a structural schematic diagram from another perspective when the gear testing equipment of this utility model is in use;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure after the central support column and gear are assembled;

[0026] Figure 4 for Figure 1 Schematic diagram of the middle and lower pressure mechanism;

[0027] Figure 5 for Figure 1 A schematic diagram of the structure at the laser sensor.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Base plate; 2. Support column; 3. Gear; 4. Mounting plate; 5. First camera; 6. Mounting plate; 7. Laser displacement sensor; 8. Anti-slip layer; 9. Drive shaft; 10. Rotary motor; 11. Lifting plate; 12. Down pressure rod; 13. Ball bearing; 14. Direct-acting cylinder; 15. Guide elongated hole; 16. Threaded hole; 17. Fixing frame; 18. Connecting lug; 19. Bolt; 20. Second camera. Detailed Implementation

[0030] To address the problems in the background technology, the core inventive concept of this utility model is: to use a support column to hold the gear in mid-air, thereby enabling the camera to simultaneously detect the upper and lower surfaces of the gear, requiring only one detection for each gear, resulting in high detection efficiency.

[0031] The present invention will be further described in detail below with reference to the embodiments.

[0032] Example 1 of the gear testing equipment provided by this utility model:

[0033] like Figures 1-5 As shown, in a basic specific embodiment, the gear detection device includes a bracket, on which a first camera 5 and a rotary drive mechanism for driving the gear 3 to rotate are mounted. The first camera 5 is located above the rotary drive mechanism for photographing the upper surface of the gear 3. The rotary drive mechanism includes a rotary power source and a support column 2 for supporting the gear 3 in mid-air. The support column 2 extends vertically and is connected to the output end of the rotary power source. The support column 2 includes a frustum section whose outer diameter gradually increases from top to bottom (the frustum section includes a small circular top surface, a large circular bottom surface, and a side surface connecting the top surface and the ground). An anti-slip layer 8 is provided on the side surface of the frustum section to support the anti-slip layer 8 and drive the gear 3 to rotate through friction. A second camera 20 for photographing the lower surface of the gear 3 is also mounted on the bracket. A laser displacement sensor 7 located on the left or right side of the support column 2 for measuring the outer circumference of the gear 3 is also provided on the bracket.

[0034] The rotary power source can be a commonly used rotary power source such as a rotary motor 10 or a rotary cylinder. Taking the rotary motor 10 as an example, the output shaft of the rotary motor 10 is connected to the support column 2 via a coupling. Alternatively, the lower end of the support column 2 is provided with a socket, and the output shaft of the rotary motor 10 is inserted into the socket and has an interference fit with the socket. The anti-slip layer 8 can be sprayed on the side of the frustum section, or a hollow frustum-shaped anti-slip sleeve can be tightly fitted onto the frustum section to form the anti-slip layer 8. The material of the anti-slip layer 8 can be commonly used anti-slip materials such as silicone or rubber.

[0035] To facilitate understanding by those skilled in the art, the beneficial effects of the gear testing equipment of this utility model will be described in detail below in conjunction with specific usage.

[0036] During testing, firstly, gear 3 is installed on support column 2 from top to bottom, ensuring that the axis of gear 3 extends vertically. At this time, the lower part of the inner hole of gear 3 is in contact with the side of anti-slip layer 8 or frustum section. Then, the rotational power source drives support column 2 to rotate slowly. The side of anti-slip layer 8 or frustum section drives gear 3 to rotate synchronously with support column 2 through friction. First camera 5 and second camera 20 photograph the upper and lower surfaces of gear 3 (one part of the corresponding surface is photographed at a time, and after gear 3 rotates one revolution, the corresponding camera can photograph all parts of the corresponding surface). Laser displacement sensor 7 is used to measure the distance between the outer circumference of gear 3 and laser displacement sensor 7, thereby indirectly measuring the outer contour of gear 3 (laser displacement sensor 7 scans its circumference during the rotation of gear 3, measuring the distance change between adjacent tooth surfaces, thereby judging the cumulative tooth pitch error and the single tooth pitch deviation). Finally, the captured images and the data measured by laser displacement sensor 7 are analyzed by computer (to determine whether there are cracks or gaps on the upper and lower surfaces of gear 3, and to judge the cumulative tooth pitch error and the single tooth pitch deviation), and the final test result can be obtained.

[0037] Each camera and laser displacement sensor 7 can communicate with the computer via wired connection (wire) or wireless connection (Bluetooth, WIFI, 2 / 3 / 4 / 5G network); alternatively, a memory (such as a memory card) can be configured for the camera and laser displacement sensor 7, and the memory can be manually removed and the data in the memory can be entered into the computer using a card reader or other tools.

[0038] In summary, this invention can simultaneously photograph the upper and lower surfaces of gear 3, thereby enabling the collection of gear 3 information in one go. This lays the foundation for completing the detection of gear 3 in one go and helps improve detection efficiency.

[0039] In the above specific implementation, the staff needs to be proficient enough to quickly place the gear 3 horizontally on the support column 2, which makes the gear testing equipment have high requirements for the staff's quality.

[0040] To solve the above problems, in a preferred embodiment, such as Figures 1-4 As shown, the bracket is also equipped with at least three pressing mechanisms for pressing down on the upper surface of the gear 3 to straighten the gear 3. The pressing mechanism includes a direct power source and a lifting plate 11 connected to the output end of the direct power source. At least three pressing rods 12 are connected to the lower end surface of the lifting plate 11. The lower end of each pressing rod 12 is provided with a pressing part for pressing down on the upper surface of the gear 3. All pressing parts are located at the same height. The first camera 5 is installed on the lower end surface of the lifting plate 11.

[0041] The lifting plate 11 can be a square, round, or irregularly shaped plate; the first camera 5 can be bundled to the lifting plate 11 with straps, thus indirectly installed on the lower end face of the lifting plate 11, or the first camera 5 can be directly installed on the lower end face of the lifting plate 11 by adhesive bonding or other methods; the direct-acting power source can be a direct-acting cylinder 14, a linear motor, a direct-acting hydraulic cylinder, or other commonly used direct-acting power sources. Taking the direct-acting cylinder 14 as an example, the lifting plate 11 is provided with threaded holes, and the output end of the direct-acting cylinder 14 has a connecting flange. The lifting plate 11 and the output end of the direct-acting cylinder 14 are connected by bolts. Figures 1-4 In the middle, there are four pressure rods 12. All pressure rods 12 are evenly distributed on the same circumference, and the axis of the circumference enclosed by the pressure rods 12, the axis of the lifting plate 11 and the axis of the support column 2 coincide, so as to better press down on the gear 3 and keep the gear 3 in a horizontal state.

[0042] In other embodiments, the number of pressing rods 12 can be three, five, or more, and the pressing rods 12 can be distributed on two, three, or more circumferences. Based on the principle that three non-collinear points determine a plane, in the above different embodiments, the pressing rods 12 can keep the gear 3 in a horizontal state, reducing the operation difficulty of the gear detection equipment and preventing the gear 3 from shaking during rotation.

[0043] After the gear 3 is installed on the support column 2, the lifting plate 11 moves downward and the pressing part presses against the upper surface of the gear 3 to keep the gear 3 in a horizontal state; then, the rotary motor 10 drives the support column 2 to rotate the gear 3, the lifting plate 11 does not rotate, and relative movement occurs between the pressing part and the gear 3.

[0044] In one specific embodiment, the pressure rod 12 is made of a self-lubricating material such as polytetrafluoroethylene, and the lower end face of the pressure rod 12 is used to press the upper surface of the gear 3 and constitute the pressing part.

[0045] In other specific embodiments, the pressure rod 12 includes a cylindrical section and an inverted conical section from top to bottom. The tip of the inverted conical section is used to press against the upper surface of the gear 3 and form the pressing part, so as to reduce the contact area between the pressing part and the gear 3, thereby reducing the friction between the gear 3 and the pressing part.

[0046] In the above specific embodiment, the top pressing part and the gear 3 are in sliding friction, and the friction force is relatively large.

[0047] To reduce the friction between the pressing part and the gear 3, in a preferred embodiment, a ball bearing 13 is installed at the lower end of the pressing rod 12. The ball bearing 13 is used to press the upper surface of the gear 3 and form the pressing part. At this time, the friction between the pressing part and the gear 3 is rolling friction, which is relatively small.

[0048] The ball bearing 13 can be partially embedded in the pressure rod 12; or, the lower end of the pressure rod 12 is provided with a converging groove, the ball bearing 13 is installed in the converging groove, and the ball bearing 13 protrudes from the converging groove and is used to press the upper surface of the gear 3.

[0049] The following is a detailed description of the installation method of the laser displacement sensor 7.

[0050] When measuring different gears 3, the diameter of the inner hole of gear 3 is different, and after the gear 3 is installed on the support column 2, the height of gear 3 is different.

[0051] In one specific embodiment, the laser displacement sensor 7 is always installed at the same height on the bracket by means of bonding, interference fit, snap-fit, bolt connection, etc. In this case, the gear detection equipment can only measure gears 3 with an inner hole diameter of one size, which limits the scope of application.

[0052] In a preferred embodiment, such as Figure 5 As shown, the bracket includes a mounting plate 6, on which a guide elongated hole 15 extends vertically. The front and rear sides of the guide elongated hole 15 are provided with multiple threaded holes 16 arranged vertically at intervals. The gear detection equipment also includes a fixed frame 17 that passes through the guide elongated hole 15. The front and rear side walls of the fixed frame 17 are used for guiding and sliding cooperation with the hole wall of the guide elongated hole 15. The laser displacement sensor 7 is fixed on the fixed frame 17. The fixed frame 17 includes a connecting ear 18, on which a bolt through hole is provided for the bolt 19 to pass through. The fixed frame 17 is fixedly connected to some of the threaded holes 16 by bolts 19.

[0053] The fixed frame 17 is provided with mounting holes, and the laser displacement sensor 7 is interference-fitted into the mounting holes, or the laser displacement sensor 7 is fixedly installed on the fixed frame 17 by means of bonding or other methods.

[0054] Of course, in other specific embodiments, the threaded hole 16 may be provided only on the front side of the guide elongated hole 15, or only on the rear side of the guide elongated hole 15, which does not affect the normal installation of the fixing frame 17.

[0055] In use, the bolts 19 and multiple threaded holes 16 arranged at intervals above and below can be used to fix the fixed frame 17 at different heights, thereby fixing the laser displacement sensor 7 at different heights and adapting to gears 3 with different inner diameters. Among them, since the guide elongated hole 15 slides and engages with the fixed frame 17 in the vertical direction, the guide elongated hole 15 also serves to straighten the fixed frame 17.

[0056] In other specific embodiments, the bracket is also provided with an electric lifting platform located on the side of the support column 2, and the laser displacement sensor 7 is installed on the electric lifting platform.

[0057] The electric lifting platform is purchased as a whole. The electric lifting platform includes an electric telescopic rod and a tray connected to the output end of the electric telescopic rod. The laser displacement sensor 7 is fixedly installed on the tray by means of adhesive bonding or other methods.

[0058] In use, the height of the laser displacement sensor 7 can be adjusted by controlling the electric lifting platform to accommodate gears 3 with different inner diameters.

[0059] In this invention, the laser displacement sensor 7 is purchased as a whole. The installation method may vary depending on the model of the laser displacement sensor 7.

[0060] The following is a detailed description of the specific structure of the support.

[0061] exist Figures 1-5 In the specific embodiment shown, the bracket includes a base plate 1, legs, and a mounting plate 4. The legs are installed at the bottom of the base plate 1 to form a motor mounting space. The mounting plate 4 includes a vertical plate installed on the upper surface of the base plate 1 and a horizontal plate connected to the upper surface of the vertical plate. The pressing mechanism is installed on the lower surface of the horizontal plate. The rotary power source is located in the motor mounting space and installed on the lower surface of the base plate 1. The base plate 1 is provided with a through hole for the output end of the rotary power source and / or the support column 2 to pass through. The second camera 20 is installed or placed on the upper surface of the base plate 1, and the mounting vertical plate 6 is installed or placed on the upper surface of the base plate 1.

[0062] The mounting plate 4 and the mounting upright plate 6 can be welded and fixed to the base plate 1, or the base plate 1 has a slot, the mounting plate 4 is inserted and fixed to the base plate 1, and the mounting upright plate 6 is inserted and fixed to the base plate 1; the upper end of the support leg has a connecting plate with bolt holes, the lower plate surface of the base plate 1 has threaded holes 16, and the support leg is fixedly connected to the base plate 1 by bolts 19. Of course, the support leg can also be directly welded and fixed to the base plate 1.

[0063] In other specific embodiments, the bracket may also include a hollow rectangular bracket, which includes a top plate, a bottom plate 1 and two side plates. The pressing mechanism is installed on the lower surface of the top plate, the rotation drive mechanism is installed on the upper surface of the bottom plate 1, and the laser displacement sensor 7 is installed on the side plates.

[0064] The following is a detailed description of the specific structure of support column 2.

[0065] exist Figures 1-5In the specific embodiment shown, the lower part of the support column 2 has a baffle and a drive shaft 9. The baffle is located above the perforation and is used to cover the perforation, which is aesthetically pleasing and can prevent dust from falling into the perforation. The drive shaft 9 is located below the baffle and is used to drive the output end of the rotating power source. The second camera 20 is arranged close to the baffle, which is simple in structure.

[0066] Taking a rotary motor 10 as the rotary power source as an example, the output shaft (i.e., the output end) of the rotary motor 10 is connected to the transmission shaft 9 via a coupling.

[0067] In other specific embodiments, the support column 2 only includes a frustum section, and the lower end of the support column 2 is provided with a socket. The output shaft of the rotary power source is inserted into the socket and is interference-fitted with the socket to realize the transmission connection between the support column 2 and the rotary power source.

[0068] Embodiment 2 of the gear testing equipment provided by this utility model:

[0069] The purpose of this embodiment is to provide a gear inspection device without an anti-slip layer.

[0070] Reference Figures 1-5 As shown, the main difference between this embodiment and embodiment 1 is that in this embodiment, the frustum section is made of anti-slip material, and the side of the frustum section is directly used to support and drive the gear 3 to rotate, resulting in a simple structure.

[0071] Example 3 of the gear testing equipment provided by this utility model:

[0072] The purpose of this embodiment is to provide a gear detection device that uses a camera instead of a laser displacement sensor.

[0073] Reference Figures 1-5 As shown, the main difference between this embodiment and embodiments 1 and 2 is that in embodiments 1 and 2, the outer peripheral surface of the gear 3 is measured using a laser displacement sensor 7, while in this embodiment, the outer peripheral surface of the gear 3 is measured using a camera.

[0074] Referring to the Chinese utility model patent with authorization announcement number CN203422324U, three sets of cameras set directly above, to the side and diagonally above the gear can take pictures of the gear from multiple angles for subsequent computer analysis, thereby enabling the gear inspection work to be completed.

[0075] In this embodiment, the bracket is also equipped with a third camera and a fourth camera. The third camera is located on the side, and the fourth camera is located diagonally above or diagonally below. The first, second, third, and fourth cameras can take pictures of the gear 3 from multiple angles for subsequent computer analysis, thereby enabling the detection of the gear 3.

[0076] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some technical features, or organically combine different specific implementation methods to create the specific implementation methods shown in the accompanying drawings. Of course, those skilled in the art can also create other specific implementation methods not shown in the accompanying drawings. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gear inspection device, comprising a bracket, on which a first camera and a rotary drive mechanism for driving a gear to rotate are mounted, the first camera being positioned above the rotary drive mechanism for photographing the upper surface of the gear, characterized in that, The rotary drive mechanism includes a rotary power source and a support column for mounting the gear in mid-air. The support column extends vertically and is connected to the output end of the rotary power source. The support column includes a frustum section whose outer diameter gradually increases from top to bottom. The frustum section has an anti-slip layer on its side or is made of an anti-slip material to support the gear and drive it to rotate through friction. A second camera for photographing the lower surface of the gear is also mounted on the bracket.

2. The gear testing equipment as described in claim 1, characterized in that, The bracket is also equipped with at least three pressing mechanisms for pressing down on the upper surface of the gear to straighten the gear. The pressing mechanism includes a direct power source and a lifting plate connected to the output end of the direct power source. At least three pressing rods are connected to the lower end of the lifting plate. The lower end of each pressing rod is provided with a pressing part for pressing down on the upper surface of the gear. All pressing parts are located at the same height. The first camera is installed on the lower end of the lifting plate.

3. The gear testing equipment as described in claim 2, characterized in that, The lower end of the pressure rod is equipped with ball bearings, which are used to press against the upper surface of the gear and form the pressing part.

4. The gear testing equipment as described in claim 2 or 3, characterized in that, All the pressure rods are evenly spaced on the same circumference, and the axis of the circumference enclosed by the pressure rods, the axis of the lifting plate, and the axis of the support column coincide.

5. The gear testing equipment as described in any one of claims 1 to 3, characterized in that, The bracket is also equipped with a laser displacement sensor located on the left or right side of the support column and used to measure the outer circumference of the gear.

6. The gear testing equipment as described in claim 5, characterized in that, The bracket includes a mounting plate with vertically extending guide holes. The front and / or rear sides of the guide holes have multiple threaded holes spaced vertically. The gear testing equipment also includes a fixed frame that passes through the guide holes. The front and rear sidewalls of the fixed frame are used for guiding and sliding cooperation with the hole walls of the guide holes. The laser displacement sensor is fixed on the fixed frame. The fixed frame has bolt holes for bolts to pass through, and the fixed frame is fixedly connected to some of the threaded holes by bolts.

7. The gear testing equipment as described in any one of claims 1 to 3, characterized in that, The support frame is also equipped with an electric lifting platform located on the side of the support column, and a laser displacement sensor for measuring the outer circumference of the gear is installed on the electric lifting platform.

8. The gear testing equipment as described in claim 2 or 3, characterized in that, The bracket includes a base plate, legs, and a mounting plate. The legs are installed on the bottom of the base plate. The mounting plate includes a vertical plate installed on the upper surface of the base plate and a horizontal plate connected to the upper surface of the vertical plate. The pressing mechanism is installed on the lower surface of the horizontal plate. The rotary power source is installed on the lower surface of the base plate. The base plate is provided with a through hole for the output end of the rotary power source and / or the support column to pass through. The second camera is installed or placed on the upper surface of the base plate.

9. The gear testing equipment as described in claim 8, characterized in that, The lower part of the support column has a baffle and a drive shaft. The baffle is located above the perforation and is used to cover the perforation. The drive shaft is located below the baffle and is used to drive the output end of the rotating power source. The second camera is arranged close to the baffle.

10. The gear testing equipment as described in claim 2 or 3, characterized in that, The rotary power source is a rotary motor, and the output shaft of the rotary motor is connected to the support column via a transmission connection; the direct-acting power source is a direct-acting cylinder, and the output end of the direct-acting cylinder is connected to the lifting plate via a transmission connection.

Images