Device for detecting installation distance, meshing mark and gap of straight bevel gear

Abstract

The utility model belongs to the technical field of gear testing fixture equipment, and particularly relates to a straight bevel gear mounting distance, meshing mark and gap detection device, which comprises a testing fixture base, and a support frame is mounted at one end of the testing fixture base; a main shaft is mounted on the support frame; one end of the spindle is provided with a hand-cranking wheel, and the middle of the other end of the spindle is provided with a positioning body; the detection device can realize the detection of the installation distance of the straight bevel gear, can also realize the measurement of the tooth side meshing clearance of the precision forging straight bevel gear and the planetary gear and the detection of the gear meshing mark, and effectively controls the gear key technical parameters such as the gear installation size, the meshing mark, the tooth side clearance and the like in the production and machining process. Normal assembly of a product and the service life of a gear can be effectively guaranteed, the installation distance size and end face run-out can be detected at the same time, repeated positioning of clamp precision in machine tool machining can be verified at the same time, the detection precision and the detection efficiency are improved, and the detection cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear inspection equipment, and specifically relates to a device for detecting the mounting distance, meshing mark and clearance of a straight bevel gear. Background Technique

[0002] A straight bevel gear is a gear transmission device. Its main feature is that its tooth line is straight and the axes of the gears intersect. It is mainly used in scenarios where the transmission direction needs to be changed or two axes are not parallel but transmission is required, and is commonly used in fields such as construction equipment and automotive transmission systems.

[0003] In order to improve the transmission efficiency and load-bearing capacity of straight bevel gears, as well as reduce wear and noise, it is usually necessary to detect the mounting distance, meshing mark and clearance of straight bevel gears. The existing detection methods mainly involve placing the gear to be measured on the main shaft, meshing it with a standard planetary gear, and using a dial indicator to measure the gear meshing clearance.

[0004] When detecting gears, each gear needs to be measured at least three times to determine the dimensional values. On average, it takes 30 seconds to complete one measurement, which is time-consuming and inefficient. Moreover, the accuracy of bevel gears needs to be detected using a gear detector, which is time-consuming and inefficient. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique, the utility model proposes a device for detecting the mounting distance, meshing mark and clearance of a straight bevel gear.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A device for detecting the mounting distance, meshing mark and clearance of a straight bevel gear according to the utility model includes a fixture base. One end of the fixture base is provided with a support frame; a main shaft is installed on the support frame; a hand crank is installed at one end of the main shaft, and a positioning body is provided in the middle of the other end of the main shaft; a driving cylindrical gear is installed at one end of the main shaft; the inner hole of the driving cylindrical gear is in clearance fit with the main shaft and is fixed thereon through a pull rod and a gland; a V-shaped guide rail is provided at one end of the fixture base, and a slide plate is slidably connected to the V-shaped guide rail; a push plate is slidably provided inside the fixture base, and the push plate is connected to the slide plate; a cam mechanism is installed inside the fixture base, and the push plate is cooperatively connected with the cam mechanism; a rocker arm is installed at one end of the cam mechanism; a positioning shaft is installed on the slide plate; a spherical washer is installed on the positioning shaft, and a planetary gear is installed on the spherical washer; a dial indicator is installed on one side of the fixture base, and a locking nut is provided on the main shaft.

[0007] Preferably, a mounting plate is installed on the bottom side of the fixture base; sliding rods are fixedly connected to the edges on both sides of the mounting plate, and a protective shell is slidably connected to the sliding rods; all the mechanism components on the surface of the fixture base are located inside the protective shell, and the protective shell is made of transparent material.

[0008] Preferably, telescopic rods are fixedly connected to the four corners of the bottom of the mounting plate, and the other ends of the telescopic rods are fixedly connected to a bottom plate; a threaded cylinder is rotatably connected to the center of the bottom plate; the outer wall of the threaded cylinder is drivenly connected to the output end of a servo motor through a gear set; a screw rod is rotatably connected to the inside of the threaded cylinder, and the other end of the screw rod is fixedly connected to the bottom of the mounting plate.

[0009] Preferably, a connecting block is fixedly connected to the upper edge of the bottom plate, and an extension plate is slidably connected to the inside of the connecting block; a plurality of groups of screw holes are equidistantly formed in the extension plate, and a screw hole is also formed in the middle of the connecting block; a clamping plate is slidably connected to the inside of one end of the extension plate, and the clamping plate is in an I-shaped setting.

[0010] Preferably, a mesh bag is adhesively attached to one side of the inner wall of the protective shell through a magic tape, and a desiccant is placed inside the mesh bag.

[0011] Preferably, an oil injection valve is provided on one side of the main shaft.

[0012] Preferably, a rubber pad is laid on the bottom of the bottom plate, and the rubber pad has the same shape as the bottom of the bottom plate.

[0013] The beneficial effects of the present utility model:

[0014] 1. The utility model provides a device for detecting the mounting distance, meshing impression and clearance of a straight bevel gear. The slide plate can be controlled to slide left or right through a rocker arm, and the main shaft device on the right can rotate freely 360 degrees through a handwheel. When the slide plate slides left, the planetary gear moves away from the driving cylindrical gear, and at this time, the driving cylindrical gear and the planetary gear to be loaded and unloaded and inspected can be installed and removed. When the rocker arm slides the slide plate right, the planetary gear meshes with the driving cylindrical gear. At this time, by adjusting the position of the slide plate, the meshing clearance of the straight bevel gears on the planetary gear and the driving cylindrical gear can be adjusted. The distance from the end face of the main shaft to the center line of the positioning shaft is the mounting distance of the straight bevel gear, and the distance from the lowest point of the spherical pad to the axis line of the driving wheel is the mounting distance of the planetary gear. After turning the end face of the driving wheel mounting distance, this device is used to measure the gear meshing clearance between the planetary gear and the straight bevel gear under the standard mounting distance. If the clearance is too large or too small, it is adjusted by the thickness of the turned end face until the clearance meets the requirements of the drawing. After the clearance is adjusted, it can also be checked whether the meshing impression of the measuring gear is appropriate, realizing the detection of the mounting distance size of the straight bevel gear. At the same time, it can also realize the measurement of the meshing clearance between the precision forging straight bevel gear and the planetary gear tooth side and the inspection of the gear meshing impression, effectively controlling the key technical parameters of the gear such as the gear mounting size, meshing impression and tooth side clearance in the production and processing process, effectively ensuring the normal assembly of the product and the service life of the gear. At the same time, it replaces the traditional detection means, is convenient and fast, eliminates the uniqueness in the original detection, and now through one installation, it can simultaneously detect the mounting distance size, end face runout, and at the same time, it can verify the repeated positioning of the fixture accuracy in the machine tool processing, improving the detection accuracy and detection efficiency and reducing the detection cost.

[0015] 2. The utility model provides a device for detecting the mounting distance, meshing impression and clearance of a straight bevel gear. By pushing the protective shell to the other end of the slide bar, the components on the fixture base can be exposed without affecting the detection work of the gear. At the same time, when the device is placed, by resetting the protective shell, most areas of the fixture base can be covered, reducing the damage caused by external dust falling into the device and to the internal precision components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0017] Figure 1 is the plan view of the utility model;

[0018] Figure 2 is the plan view of installing the planetary gear and the driving cylindrical gear in the utility model;

[0019] Figure 3 is the top view of the utility model;

[0020] Figure 4 is a perspective view of the protective shell in the present utility model;

[0021] Figure 5 is a perspective view of the mounting plate in the present utility model;

[0022] Figure 6 is a perspective view of the bottom plate in the present utility model.

[0023] Legend:

[0024] 1. Fixture base; 2. Support frame; 3. V-shaped guide rail; 4. Cam mechanism; 5. Rocker arm; 6. Positioning shaft; 7. Spherical pad; 8. Planet gear; 9. Main shaft; 10. Handwheel; 11. Pull rod; 12. gland; 13. Driving spur gear; 14. Dial indicator; 15. Push plate; 16. Locking nut; 17. Oil injection valve; 18. Positioning body; 19. Slide plate; 20. Mounting plate; 21. Slide rod; 22. Protective shell; 23. Telescopic rod; 24. Bottom plate; 25. Screw; 26. Threaded barrel; 27. Gear set; 28. Servo motor; 29. Connecting block; 30. Extension plate; 31. Screw hole; 32. Clamping plate; 33. Mesh bag. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The following gives specific embodiments.

[0027] Please refer to Figures 1-3, the present utility model provides a device for detecting the mounting distance, meshing mark and clearance of a straight bevel gear, including a fixture base 1, one end of the fixture base 1 is installed with a support frame 2; a main shaft 9 is installed on the support frame 2; one end of the main shaft 9 is installed with a handwheel 10, and a positioning body 18 is provided in the middle of the other end of the main shaft 9; one end of the main shaft 9 is installed with a driving cylindrical gear 13; the inner hole of the driving cylindrical gear 13 is in clearance fit with the main shaft 9 and is fixed thereon through a pull rod 11 and a gland 12; one end of the fixture base 1 is provided with a V-shaped guide rail 3, and a slide plate 19 is slidably connected to the V-shaped guide rail 3; a push plate 15 is slidably arranged inside the fixture base 1, and the push plate 15 is connected to the slide plate 19; a cam mechanism 4 is installed inside the fixture base 1, and the push plate 15 is connected to the cam mechanism 4 in a cooperative manner; one end of the cam mechanism 4 is installed with a rocker arm 5; a positioning shaft 6 is installed on the slide plate 19; a spherical washer 7 is installed on the positioning shaft 6, and a planetary gear 8 is installed on the spherical washer 7; a dial indicator 14 is installed on one side of the fixture base 1, and a locking nut 16 is provided on the main shaft 9.

[0028] During operation, the slide plate 19 can be controlled to slide left or right through the rocker arm 5, and the main shaft 9 device on the right can rotate freely 360 degrees through the handwheel 10. When the slide plate 19 slides left, the planetary gear 8 moves away from the driving cylindrical gear 13, and at this time, the driving cylindrical gear 13 and the planetary gear 8 to be inspected can be loaded and unloaded. When the rocker arm 5 slides the slide plate 19 to the right, the planetary gear 8 meshes with the driving cylindrical gear 13. At this time, by adjusting the position of the slide plate 19, the meshing clearance of the straight bevel gears on the planetary gear 8 and the driving cylindrical gear 13 can be adjusted. The distance from the end face of the main shaft 9 to the center line of the positioning shaft is the mounting distance of the straight bevel gear, and the distance from the lowest point of the spherical washer 7 to the axis line of the driving wheel is the mounting distance of the planetary gear 8. After the end face of the driving wheel mounting distance is turned, this device is used to measure the gear meshing clearance between the planetary gear 8 and the straight bevel gear under the standard mounting distance. If the clearance is too large or too small, it is adjusted by the thickness of the turned end face until the clearance meets the requirements of the drawing. After the clearance is adjusted, it can also be checked whether the meshing mark of the measuring gear is appropriate, realizing the detection of the mounting distance dimension of the straight bevel gear. At the same time, it can also realize the measurement of the meshing clearance between the precision forging straight bevel gear and the planetary gear tooth side and the inspection of the gear meshing mark, effectively controlling the key technical parameters of the gear such as the gear mounting dimension, meshing mark and tooth side clearance in the production and processing process, effectively ensuring the normal assembly of the product and the service life of the gear. At the same time, it replaces the traditional detection means, is convenient and fast, eliminates the uniqueness during the original detection. Now, after one installation, the mounting distance dimension and end face runout can be detected at the same time, and at the same time, the repeated positioning of the fixture accuracy in the machine tool processing can be verified, improving the detection accuracy and detection efficiency and reducing the detection cost.

[0029] Please refer to Figure 1 , Figures 4-6, a mounting plate 20 is installed on the bottom side of the fixture base 1; sliding rods 21 are fixedly connected to the two side edges of the mounting plate 20, and a protective shell 22 is slidably connected to the sliding rods 21; all the mechanism components on the surface of the fixture base 1 are located inside the protective shell 22, and the protective shell 22 is made of transparent material; during operation, by pushing the protective shell 22 to the other end of the sliding rod 21, the components on the fixture base 1 can be exposed, so as not to affect the detection work of the gear. At the same time, when the device is placed, by resetting the protective shell 22, most areas of the fixture base 1 can be covered, reducing the damage caused by external dust falling into the device and to the internal precision components.

[0030] Please refer to Figure 1 , Figures 4-6 , telescopic rods 23 are fixedly connected to the four corners of the bottom of the mounting plate 20, and the other ends of the telescopic rods 23 are fixedly connected to a bottom plate 24; a threaded cylinder 26 is rotatably connected to the center of the bottom plate 24; the outer wall of the threaded cylinder 26 is drivingly connected to the output end of a servo motor 28 through a gear set 27; a screw rod 25 is rotatably connected to the inside of the threaded cylinder 26, and the other end of the screw rod 25 is fixedly connected to the bottom of the mounting plate 20; during operation, by starting the servo motor 28, the threaded cylinder 26 can be driven to rotate through the gear set 27, and then the screw rod 25 can be pushed to lift the mounting plate 20, so that the detection device can adapt to the detection requirements of different heights and positions, improving flexibility.

[0031] Please refer to Figure 1 , Figures 4-6 , a connecting block 29 is fixedly connected to the upper edge of the bottom plate 24, and an extension plate 30 is slidably connected to the inside of the connecting block 29; a plurality of groups of screw holes 31 are equidistantly arranged on the extension plate 30, and a screw hole 31 is also arranged in the middle of the connecting block 29; a clamping plate 32 is slidably connected to the inside of one end of the extension plate 30, and the clamping plate 32 is in an I-shaped setting; during operation, by removing the screws from the screw holes 31, the extending length of the extension plate 30 can be adjusted, and the clamping plate 32 is used to clamp the edge of the placement platform to complete the fixing work between the device and the placement platform, reducing the detection error caused by the device moving or tilting due to external force interference during the detection process. After the adjustment is completed, by aligning the positions of the two screw holes 31 and tightening the screws.

[0032] Please refer to Figure 4 , a mesh bag 33 is adhesively bonded to one side of the inner wall of the protective shell 22 through a magic tape, and a desiccant is placed inside the mesh bag 33; during operation, the desiccant can absorb moisture in the air to keep the area covered by the protective shell 22 dry, reducing the rusting of components caused by factors such as external air humidity.

[0033] Please refer to Figures 1-3, an oil injection valve 17 is provided on one side of the main shaft 9; during operation, lubricating oil or grease can be injected into the main shaft 9 through the oil injection valve 17 to reduce the friction and wear between the main shaft 9 and components such as bearings, and improve the operating efficiency and lifespan of the equipment.

[0034] Please refer to Figure 4 , a rubber pad is laid at the bottom of the bottom plate 24, and the rubber pad has the same shape as the bottom of the bottom plate 24; during operation, the rubber pad can further increase the friction between the bottom of the bottom plate 24 and the placement platform, and further enhance the stability of the device during placement and operation.

[0035] Working principle: The rocker arm 5 can control the sliding plate 19 to slide left or right. The main shaft 9 device on the right can rotate freely 360 degrees through the handwheel 10. When the sliding plate 19 slides left, the planetary gear 8 moves away from the driving cylindrical gear 13. At this time, the driving cylindrical gear 13 and the planetary gear 8 for loading and unloading inspection can be operated. After the rocker arm 5 slides the sliding plate 19 to the right, the planetary gear 8 meshes with the driving cylindrical gear 13. At this time, by adjusting the position of the sliding plate 19, the meshing clearance of the straight bevel gears on the planetary gear 8 and the driving cylindrical gear 13 can be adjusted. The distance from the end face of the main shaft 9 to the center line of the positioning shaft is the installation distance of the straight bevel gear, and the distance from the lowest point of the spherical washer 7 to the axis line of the driving wheel is the installation distance of the planetary gear 8. After turning the end face of the driving wheel installation distance, this device is used to measure the gear meshing clearance between the planetary gear 8 and the straight bevel gear under the standard installation distance. If the clearance is too large or too small, it is adjusted by the thickness of the turned end face until the clearance meets the requirements of the drawing. After the clearance is adjusted, it is also possible to check whether the meshing mark of the measuring gear is appropriate, realizing the detection of the installation distance dimension of the straight bevel gear. At the same time, it is also possible to measure the meshing clearance between the fine-forged straight bevel gear and the planetary gear tooth side and check the gear meshing mark, effectively controlling the key technical parameters of the gear such as the gear installation size, meshing mark and tooth side clearance in the production and processing process, effectively ensuring the normal assembly of the product and the service life of the gear. At the same time, it replaces the traditional detection means, is convenient and fast, eliminates the uniqueness in the original detection. Now, after one installation, it is possible to detect the installation distance dimension and end face runout at the same time, and at the same time, it is possible to verify the repeated positioning of the fixture accuracy in machine tool processing, improving the detection accuracy and detection efficiency and reducing the detection cost; By pushing the protective shell 22 to the other end of the slide bar 21, the components on the fixture base 1 can be exposed without affecting the detection work of the gear. At the same time, when the device is placed, by resetting the protective shell 22, most areas of the fixture base 1 can be covered, reducing the damage caused by external dust falling into the device and to the internal precision components; By starting the servo motor 28, the threaded barrel 26 can be driven to rotate through the gear set 27, and then the screw rod 25 can be used to push the mounting plate 20 to lift, so that this detection device can adapt to the detection requirements of different heights and positions, improving flexibility; By removing the screw from the screw hole 31, the extended length of the extension plate 30 can be adjusted, and the edge of the placement platform can be clamped by the clamping plate 32 to complete the fixing work between this device and the placement platform, reducing the error caused by the movement or tilt of the device due to external force interference during the detection process. After the adjustment is completed, by making the positions of the two screw holes 31 opposite and tightening the screw; The desiccant can absorb the moisture in the air to keep the area covered by the protective shell 22 dry, reducing the rust of the components caused by factors such as external air humidity; Through the oil injection valve 17, lubricating oil or grease can be injected into the main shaft 9 to reduce the friction and wear between the main shaft 9 and components such as bearings, improving the operation efficiency and life of the equipment;The friction between the bottom of the bottom plate 24 and the placement platform can be further increased through the rubber pad, further enhancing the stability of the device during placement and operation.

[0036] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A device for detecting the installation distance, meshing mark and clearance of a spur bevel gear, comprising a gauge base (1), characterized in that: A support frame (2) is installed at one end of the inspection fixture base (1); a main shaft (9) is installed on the support frame (2); a hand-cranked wheel (10) is installed at one end of the main shaft (9), and a positioning body (18) is provided in the middle of the other end of the main shaft (9); an active cylindrical gear (13) is installed at one end of the main shaft (9); the inner hole of the active cylindrical gear (13) is clearance-matched with the main shaft (9), and is fixed thereto by a pull rod (11) and a pressure cover (12); a V-shaped guide rail (3) is provided at one end of the inspection fixture base (1), and a slide plate (19) is slidably connected to the V-shaped guide rail (3); the inspection fixture base (1) is provided with a V-shaped guide rail (3) and a slide plate (19) is slidably connected to the V-shaped guide rail (3); A push plate (15) is slidably provided inside the gauge base (1), and the push plate (15) is connected to a slide plate (19); a cam mechanism (4) is installed inside the gauge base (1), and the push plate (15) and the cam mechanism (4) are cooperatively connected; a rocker arm (5) is installed at one end of the cam mechanism (4); a positioning shaft (6) is installed on the slide plate (19); a spherical pad (7) is installed on the positioning shaft (6), and a planetary gear (8) is installed on the spherical pad (7); a dial indicator (14) is installed on one side of the gauge base (1), and a locking nut (16) is provided on the spindle (9).

2. A device for detecting installation distance, meshing mark and clearance of spur bevel gears according to claim 1, characterized in that: A mounting plate (20) is installed on the bottom side of the inspection tool base (1); sliding rods (21) are fixedly connected to the edges of both sides of the mounting plate (20), and a protective shell (22) is slidably connected to the sliding rods (21); the surface mechanism components of the inspection tool base (1) are all located inside the protective shell (22), and the protective shell (22) is transparent.

3. A device for detecting installation distance, meshing mark and clearance of spur bevel gears according to claim 2, characterized in that: The four corners of the bottom of the mounting plate (20) are fixedly connected to telescopic rods (23), and the other end of the telescopic rods (23) is fixedly connected to a bottom plate (24); a threaded barrel (26) is rotatably connected to the center of the bottom plate (24); the outer wall of the threaded barrel (26) is drivingly connected to the output end of a servo motor (28) via a gear set (27); a screw rod (25) is rotatably connected to the inside of the threaded barrel (26), and the other end of the screw rod (25) is fixedly connected to the bottom of the mounting plate (20).

4. A device for detecting installation distance, meshing mark and clearance of spur bevel gears as claimed in claim 3, characterized in that: A connecting block (29) is fixedly connected to the upper edge of the bottom plate (24), and an extension plate (30) is slidably connected inside the connecting block (29); a plurality of groups of screw holes (31) are equidistantly provided on the extension plate (30), and screw holes (31) are also provided in the connecting block (29); a clamping plate (32) is slidably connected inside one end of the extension plate (30), and the clamping plate (32) is an I-shaped arrangement.

5. A device for detecting installation distance, meshing mark and clearance of spur bevel gears as claimed in claim 2, characterized in that: A mesh bag (33) is bonded to one side of the inner wall of the protective shell (22) via Velcro, and a desiccant is placed inside the mesh bag (33).

6. A device for detecting installation distance, meshing mark and clearance of spur bevel gears according to claim 1, characterized in that: An oil injection valve (17) is provided on one side of the main shaft (9).

7. A device for detecting installation distance, meshing mark and clearance of spur bevel gears as claimed in claim 3, characterized in that: A rubber pad is laid on the bottom of the bottom plate (24), and the rubber pad has the same shape as the bottom of the bottom plate (24).

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