Bearing torque detector

Abstract

A bearing torque detector disclosed by the present invention comprises a base, a clamping mechanism, a bearing outer ring fixing mechanism and a material returning mechanism, the base is fixedly provided with a feeding channel and a defective product storage table, the feeding channel is provided with a detection limiting groove and a defective product limiting groove, the clamping mechanism is provided with a torque detection mechanism, and the bearing outer ring fixing mechanism is provided with a bearing outer ring. The bearing outer ring fixing mechanism is installed on the base, the material returning mechanism is arranged on the side, away from the defective product storage table, of the feeding channel, and the material returning mechanism is used for pushing the defective railway bearing body which rolls into the defective product limiting groove to the defective product storage table from the feeding channel. A complete automatic detection line is formed, automatic torque detection of oil seals at the two ends of a railway bearing is achieved, and compared with a traditional manual detection method, the detection efficiency and detection precision of the bearing torque are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of torque detection, in particular to a bearing torque detection machine. Background Art

[0002] Railway bearings are essential components of rolling stock, and their quality and performance are directly linked to the safety and stability of their operation. During the bearing production process, the sealing performance of the oil seal is crucial, directly impacting the bearing's lubrication and service life. To ensure bearing quality, the oil seals at both ends of the bearing must be rigorously inspected after production.

[0003] In practice, if the oil seals on both ends of a bearing rotate under a torque of 122.5 N·m (the oil seals on both ends of the bearing need to be measured separately), the bearing is considered defective. Traditional testing methods primarily involve manually securing the bearing and applying a certain torque to observe whether the oil seals rotate. However, this method is not only cumbersome but also inefficient.

[0004] Therefore, a bearing torque detection machine is proposed. Summary of the Invention

[0005] An object of the present invention is to provide a bearing torque detection machine, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a bearing torque detection machine, comprising:

[0007] A base, on which a feeding channel and a defective product storage table are fixedly installed, and a detection limit slot and a defective product limit slot are respectively opened on the feeding channel;

[0008] A clamping mechanism, wherein the clamping mechanism is provided in two groups, and the two groups of the clamping mechanisms are respectively arranged at both ends of the base. The two groups of the clamping mechanisms are provided with a torque detection mechanism, and the two groups of the torque detection mechanisms are respectively arranged on both sides of the detection limit groove. The torque detection mechanism is used to perform torque detection on the oil seals at both ends of the railway bearing body located in the detection limit groove. The clamping mechanism is used to drive the torque detection mechanism to move toward or away from the detection limit groove;

[0009] A bearing outer ring fixing mechanism, the bearing outer ring fixing mechanism is installed on the base, the bearing outer ring fixing mechanism is located directly above the detection limit groove, and the bearing outer ring fixing mechanism is used to squeeze and fix the outer ring of the railway bearing body to be detected in the detection limit groove;

[0010] A material return mechanism is provided on the base, and the material return mechanism is provided on a side of the feeding channel away from the defective product storage table. The material return mechanism is used to push the defective railway bearing body that has rolled into the defective product limiting groove from the feeding channel to the defective product storage table.

[0011] In a bearing torque testing machine according to the present invention, optionally, the clamping mechanism includes a movable seat, a first cylinder, a first slide rail and a first slider, the first cylinder and the first slide rail are both fixedly mounted on the base, the first slider is fixed to the bottom of the movable seat, the first slider is slidably mounted on the first slide rail, the bottom of the first slider is fixedly connected to a fixed block, and the piston rod end of the first cylinder is fixedly connected to one side of the fixed block.

[0012] In a bearing torque detection machine according to the present invention, optionally, the torque detection mechanism includes a dynamic torque sensor, a first seat bearing, a second seat bearing and a vertical plate, the dynamic torque sensor, the first seat bearing, the second seat bearing and the vertical plate are all fixedly mounted on the movable seat, the dynamic torque sensor is located between the first seat bearing and the second seat bearing, the inner ring of the first seat bearing is fixedly mounted with a first transmission shaft, the inner ring of the second seat bearing is fixedly mounted with a second transmission shaft, one end of the first transmission shaft is fixedly connected to the power input end of the dynamic torque sensor through a coupling, the load end of the dynamic torque sensor is fixedly connected to one end of the second transmission shaft through a coupling, and a pneumatic chuck is fixedly mounted on the end of the second transmission shaft away from the dynamic torque sensor;

[0013] An encoder is mounted on the vertical plate via a mounting member, a detection wheel is fixedly connected to the rotating shaft of the encoder, the detection wheel is in close contact with the surface of the second transmission shaft, and the second transmission shaft can drive the detection wheel to rotate when it rotates;

[0014] A torque providing mechanism is provided at one end of the first transmission shaft away from the dynamic torque sensor.

[0015] In a bearing torque detection machine according to the present invention, optionally, the torque providing mechanism includes a second cylinder, the second cylinder is fixedly mounted on the movable seat, the end of the first transmission shaft away from the dynamic torque sensor is fixedly connected to a gear, the piston rod end of the second cylinder is fixedly connected to a rack, the bottom of the rack is fixedly connected to a second slider, a second slide rail is fixedly mounted on the movable seat, the second slider is slidably mounted on the second slide rail, and the gear is meshed with the rack.

[0016] In a bearing torque detection machine according to the present invention, optionally, the mounting part includes a handle bolt, the handle bolt is threaded and rotatably connected to the upper end of the vertical plate, one end of the handle bolt is rotatably connected to a mounting seat, the encoder is fixedly mounted on the mounting seat, the end of the mounting seat away from the encoder is fixedly connected to a first guide rod, a first guide sleeve is fixedly mounted on the vertical plate, one end of the first guide rod slides through the vertical plate and then slides out from the interior of the first guide sleeve.

[0017] In a bearing torque detection machine according to the present invention, optionally, the bearing outer ring fixing mechanism includes a first support frame, the first support frame is fixedly mounted on the base, a third cylinder is fixedly mounted on the top of the first support frame, an inverted U-shaped pressure block is provided on the inner side of the first support frame, the bottom of the piston rod of the third cylinder slides through the first support frame and is fixedly connected to the top of the inverted U-shaped pressure block, the top of the inverted U-shaped pressure block is fixedly connected to a second guide rod, the top of the first support frame is fixedly connected to a second guide sleeve, the upper end of the second guide rod slides through the first support frame and slides out from the inside of the second guide sleeve, and the inverted U-shaped pressure block is located directly above the detection limit groove.

[0018] In a bearing torque testing machine according to the present invention, optionally, the material return mechanism includes a second support frame, the second support frame is fixedly mounted on the base, a fourth cylinder is fixedly mounted on the second support frame, the piston rod end of the fourth cylinder is fixedly connected to a material return block, one side of the material return block is fixedly connected to a third guide rod, the upper end of the second support frame is fixedly connected to a third guide sleeve, and the third guide sleeve is slidably sleeved on the third guide rod.

[0019] In a bearing torque testing machine according to the present invention, optionally, a slide groove is provided on the side of the feeding channel away from the second support frame, a limit plate is slidingly provided inside the slide groove, a fifth cylinder is fixedly connected to the bottom of the base, and the upper end of the piston rod of the fifth cylinder slides through the base and is fixedly connected to the bottom of the limit plate.

[0020] In a bearing torque testing machine according to the present invention, optionally, a material stop assembly is provided on the base, and the material stop assembly is mounted on one end of the feeding channel close to the defective product limiting groove. The material stop assembly includes a third support frame, and the third support frame is fixedly mounted on the base. A material stop plate is slidably mounted on the third support frame through a linear bearing, and a sixth cylinder is fixedly mounted on the base, and the top of the piston rod of the sixth cylinder is fixedly connected to one side of the material stop plate.

[0021] In a bearing torque testing machine according to the present invention, optionally, a first assembly hole and a second assembly hole are respectively opened on the feeding channel, the first assembly hole is connected to the detection limit groove, a first pushing mechanism is provided inside the first assembly hole, and a second pushing mechanism is provided inside the second assembly hole;

[0022] The first pushing mechanism includes a first pushing plate and a second mounting bracket, one end of the first pushing plate is hinged in the first assembly hole, the second mounting bracket is fixedly mounted on the bottom of the base, the lower end of the seventh cylinder is hinged on the inner side of the second mounting bracket, and the upper end of the seventh cylinder passes through the base and is hinged to the bottom of the other end of the first pushing plate;

[0023] The second pushing mechanism includes a second pushing plate and a third mounting bracket. One end of the second pushing plate is hinged in the second assembly hole. The third mounting bracket is fixedly mounted on the bottom of the base. The lower end of the eighth cylinder is hinged on the inner side of the third mounting bracket. The upper end of the eighth cylinder passes through the base and is hinged to the bottom of the other end of the second pushing plate.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The bearing torque testing machine designed in the present invention integrates multiple links such as feeding, testing, defective product sorting and material return, forming a complete automated testing line, and realizing automated torque testing of the oil seals at both ends of railway bearings. Compared with traditional manual testing methods, it effectively improves the detection efficiency and accuracy of bearing torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the top view of a bearing torque detection machine of the present invention;

[0027] Figure 2 This is a structural schematic diagram of a bearing torque detection machine according to the present invention;

[0028] Figure 3 This is a structural schematic diagram of a bearing torque detection machine according to the present invention from another perspective;

[0029] Figure 4 This is a structural schematic diagram of a clamping mechanism in a bearing torque testing machine of the present invention;

[0030] Figure 5 This is a structural schematic diagram of a torque detection mechanism in a bearing torque detection machine of the present invention;

[0031] Figure 6 This is a schematic structural diagram of a bearing outer ring fixing mechanism in a bearing torque testing machine of the present invention;

[0032] Figure 7 This is a partial structural diagram of a bearing torque detection machine according to the present invention;

[0033] Figure 8 This is a structural schematic diagram of a bearing torque testing machine of the present invention when a push plate is lifted;

[0034] Figure 9 This is the second partial structural diagram of a bearing torque detection machine of the present invention.

[0035] In the figure: 1, base; 101, feeding channel; 1011, slide; 1012, detection limit slot; 1013, first assembly hole; 1014, second assembly hole; 1015, defective product limit slot; 102, defective product storage table;

[0036] 2. Clamping mechanism; 201. Moving seat; 202. First cylinder; 203. First slide rail; 204. First slider; 205. Fixed block;

[0037] 3. Torque detection mechanism; 301. Second cylinder; 302. Dynamic torque sensor; 303. First seat bearing; 3031. First transmission shaft; 304. Second seat bearing; 3041. Second transmission shaft; 3042. Pneumatic chuck; 305. Rack; 306. Gear; 307. Second slider; 308. Second slide rail; 309. Vertical plate; 310. Handle bolt; 311. Mounting seat; 312. Encoder; 313. Detection wheel; 314. First guide rod; 315. First guide sleeve;

[0038] 4. Bearing outer ring fixing mechanism; 401. First support frame; 402. Third cylinder; 403. Inverted U-shaped pressure block; 404. Second guide sleeve; 405. Second guide rod;

[0039] 5. Material return mechanism; 501. Second support frame; 502. Fourth cylinder; 503. Material return block; 504. Third guide rod; 505. Third guide sleeve; 506. Limit plate; 507. Fifth cylinder;

[0040] 6. Material blocking assembly; 601. Third support frame; 602. Material blocking plate; 603. Linear bearing; 604. Sixth cylinder;

[0041] 7. First pushing mechanism; 701. First pushing plate; 702. Second mounting bracket; 703. Seventh cylinder;

[0042] 9. Second pushing mechanism; 901. Second pushing plate; 902. Third mounting bracket; 903. Eighth cylinder;

[0043] 8. Railway bearing body. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0046] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0047] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0048] Example

[0049] See also Figures 1 to 9 This embodiment provides a bearing torque detection machine, including a base 1, a clamping mechanism 2, a bearing outer ring fixing mechanism 4 and a material removal mechanism 5.

[0050] Among them, the base 1 is respectively fixed with a feeding channel 101 and a defective product storage table 102, and the feeding channel 101 is respectively provided with a detection limit groove 1012 and a defective product limit groove 1015;

[0051] Among them, there are two groups of clamping mechanisms 2, which are respectively arranged at both ends of the base 1. Both groups of clamping mechanisms 2 are provided with torque detection mechanisms 3, and the two groups of torque detection mechanisms 3 are respectively arranged on both sides of the detection limit groove 1012. The torque detection mechanism 3 is used to perform torque detection on the oil seals at both ends of the railway bearing body 8 located in the detection limit groove 1012. The clamping mechanism 2 is used to drive the torque detection mechanism 3 to move toward the detection limit groove 1012 or away from the detection limit groove 1012;

[0052] The bearing outer ring fixing mechanism 4 is installed on the base 1 and is located directly above the detection limit groove 1012. The bearing outer ring fixing mechanism 4 is used to squeeze and fix the outer ring of the railway bearing body 8 to be detected in the detection limit groove 1012.

[0053] Among them, the material return mechanism 5 is arranged on the base 1, and the material return mechanism 5 is arranged on the side of the feeding channel 101 away from the defective product storage table 102. The material return mechanism 5 is used to push the defective railway bearing body 8 that has rolled into the defective product limiting groove 1015 from the feeding channel 101 to the defective product storage table 102.

[0054] In this embodiment, the clamping mechanism 2 includes a movable seat 201, a first cylinder 202, a first slide rail 203 and a first slider 204. The first cylinder 202 and the first slide rail 203 are both fixedly mounted on the base 1. The first slider 204 is fixed to the bottom of the movable seat 201. The first slider 204 is slidably mounted on the first slide rail 203. The bottom of the first slider 204 is fixedly connected to a fixed block 205, and the end of the piston rod of the first cylinder 202 is fixedly connected to one side of the fixed block 205.

[0055] By controlling the extension of the piston rod of the first cylinder 202, the torque detection mechanism 3 is driven to move toward the detection limit groove 1012, and by controlling the retraction of the piston rod of the first cylinder 202, the torque detection mechanism 3 is driven to move away from the detection limit groove 1012.

[0056] In this embodiment, the torque detection mechanism 3 includes a dynamic torque sensor 302, a first seat bearing 303, a second seat bearing 304 and a vertical plate 309. The dynamic torque sensor 302, the first seat bearing 303, the second seat bearing 304 and the vertical plate 309 are all fixedly mounted on the movable base 201. The dynamic torque sensor 302 is located between the first seat bearing 303 and the second seat bearing 304. The inner ring of the first seat bearing 303 is fixedly mounted with a first transmission shaft 3031, and the inner ring of the second seat bearing 304 is fixedly mounted with a second transmission shaft 3041. One end of the first transmission shaft 3031 is fixedly connected to the power input end of the dynamic torque sensor 302 through a coupling. The load end of the dynamic torque sensor 302 is fixedly connected to one end of the second transmission shaft 3041 through a coupling. The end of the second transmission shaft 3041 away from the dynamic torque sensor 302 is fixedly mounted with a pneumatic chuck 3042.

[0057] An encoder 312 is mounted on the vertical plate 309 via a mounting member. A detection wheel 313 is fixedly connected to the rotating shaft of the encoder 312. The detection wheel 313 is in close contact with the surface of the second transmission shaft 3041. When the second transmission shaft 3041 rotates, it can drive the detection wheel 313 to rotate.

[0058] The first transmission shaft 3031 is provided with a torque providing mechanism at one end away from the dynamic torque sensor 302 ;

[0059] Among them, the torque providing mechanism includes a second cylinder 301, the second cylinder 301 is fixedly installed on the movable base 201, the end of the first transmission shaft 3031 away from the dynamic torque sensor 302 is fixedly connected to the gear 306, the piston rod end of the second cylinder 301 is fixedly connected to the rack 305, the bottom of the rack 305 is fixedly connected to the second slider 307, the second slide rail 308 is fixedly installed on the movable base 201, the second slider 307 is slidably installed on the second slide rail 308, and the gear 306 is meshed with the rack 305.

[0060] By adopting the above technical solution, when in use, the torque detection mechanism 3 is driven by the clamping mechanism 2 to move in the direction of the detection limit groove 1012, so that the pneumatic chuck 3042 is against the end of the railway bearing body 8, and then the oil seal at the end of the railway bearing body 8 is clamped by the pneumatic chuck 3042, and then the piston rod of the second cylinder 301 is controlled to extend, thereby driving the rack 305 to move in the direction away from the second cylinder 301. The moving rack 305 applies torque to the first transmission shaft 3031 through the gear 306, and the first transmission shaft 3031 applies the torque to the oil seal at the end of the railway bearing body 8 via the dynamic torque sensor 302, the second transmission shaft 3041, and the pneumatic chuck 3042. As the piston rod of the second cylinder 301 gradually extends, the torque applied to the oil seal at the end of the railway bearing body 8 gradually increases. When the applied torque reaches a preset value, the piston rod of the second cylinder 301 stops extending. If the second transmission shaft 3041 rotates during the increase of the torque, it will drive the detection wheel 313 to rotate. The rotating detection wheel 313 will transmit the rotation signal to the encoder 312, and the encoder 312 will transmit the rotation signal of the second transmission shaft 3041 to the computer. At this time, the computer determines that the railway bearing body 8 is a defective product. If the second transmission shaft 3041 does not rotate during the increase of the torque, it is considered that the railway bearing body 8 is a qualified product.

[0061] In this embodiment, the mounting part includes a handle bolt 310, which is threadably connected to the upper end of the vertical plate 309. One end of the handle bolt 310 is rotatably connected to a mounting seat 311. The encoder 312 is fixedly mounted on the mounting seat 311. The end of the mounting seat 311 away from the encoder 312 is fixedly connected to a first guide rod 314. A first guide sleeve 315 is fixedly mounted on the vertical plate 309. One end of the first guide rod 314 slides through the vertical plate 309 and then slides out from the inside of the first guide sleeve 315. Through the above arrangement, the detection wheel 313 can be driven to move toward the direction of the second transmission shaft 3041 by rotating the handle bolt 310, so that the detection wheel 313 can be tightly fitted on the second transmission shaft 3041 to ensure detection accuracy.

[0062] In this embodiment, the bearing outer ring fixing mechanism 4 includes a first support frame 401, which is fixedly installed on the base 1. A third cylinder 402 is fixedly installed on the top of the first support frame 401, and an inverted U-shaped pressure block 403 is provided on the inner side of the first support frame 401. The bottom of the piston rod of the third cylinder 402 slides through the first support frame 401 and is fixedly connected to the top of the inverted U-shaped pressure block 403. The top of the inverted U-shaped pressure block 403 is fixedly connected to a second guide rod 405, and the top of the first support frame 401 is fixedly connected to a second guide sleeve 404. The upper end of the second guide rod 405 slides through the first support frame 401 and slides out from the inside of the second guide sleeve 404. The inverted U-shaped pressure block 403 is located directly above the detection limit groove 1012.

[0063] By adopting the above technical solution, before the torque detection mechanism 3 performs torque detection on the railway bearing body 8, the piston rod of the third cylinder 402 is controlled to extend, thereby driving the inverted U-shaped pressure block 403 to move downward, so that the inverted U-shaped pressure block 403 is pressed on the outer ring of the railway bearing body 8, and then the railway bearing body 8 is fixed on the detection limit groove 1012, ensuring that the railway bearing body 8 will not rotate during the torque detection process.

[0064] In this embodiment, a first assembly hole 1013 and a second assembly hole 1014 are respectively opened on the feeding channel 101. The first assembly hole 1013 is connected to the detection limit groove 1012. The first assembly hole 1013 is provided with a first pushing mechanism 7 inside, and the second assembly hole 1014 is provided with a second pushing mechanism 9 inside.

[0065] The first pushing mechanism 7 includes a first pushing plate 701 and a second mounting bracket 702. One end of the first pushing plate 701 is hinged in the first assembly hole 1013. The second mounting bracket 702 is fixedly mounted on the bottom of the base 1. The lower end of the seventh cylinder 703 is hinged on the inner side of the second mounting bracket 702. The upper end of the seventh cylinder 703 passes through the base 1 and is hinged to the bottom of the other end of the first pushing plate 701.

[0066] The second pushing mechanism 9 includes a second pushing plate 901 and a third mounting bracket 902. One end of the second pushing plate 901 is hinged in the second assembly hole 1014. The third mounting bracket 902 is fixedly mounted on the bottom of the base 1. The lower end of the eighth cylinder 903 is hinged on the inner side of the third mounting bracket 902. The upper end of the eighth cylinder 903 passes through the base 1 and is hinged to the bottom of the other end of the second pushing plate 901.

[0067] Through the first pushing mechanism 7, when the torque detection is completed, the piston rod of the seventh cylinder 703 is controlled to extend, so that one end of the first pushing plate 701 is lifted, and the railway bearing body 8 is pushed out from the detection limit groove 1012, so that it rolls into the defective product limit groove 1015. Through the second pushing mechanism 9, when the railway bearing body 8 rolled into the defective product limit groove 1015 is a qualified product, the piston rod of the eighth cylinder 903 is controlled to extend, so that one end of the second pushing plate 901 is lifted, and the railway bearing body 8 in the defective product limit groove 1015 is pushed out from the defective product limit groove 1015 and flows into the next process.

[0068] In this embodiment, the material return mechanism 5 includes a second support frame 501, which is fixedly mounted on the base 1, and a fourth cylinder 502 is fixedly mounted on the second support frame 501, and the end of the piston rod of the fourth cylinder 502 is fixedly connected to the material return block 503, and one side of the material return block 503 is fixedly connected to the third guide rod 504, and the upper end of the second support frame 501 is fixedly connected to the third guide sleeve 505, and the third guide sleeve 505 is slidably sleeved on the third guide rod 504, wherein a slide groove 1011 is provided on the side of the feeding channel 101 away from the second support frame 501, and a limit plate 506 is slidingly provided inside the slide groove 1011, and the bottom of the base 1 is fixedly connected to the fifth cylinder 507, and the upper end of the piston rod of the fifth cylinder 507 slides through the base 1 and is fixedly connected to the bottom of the limit plate 506.

[0069] By adopting the above technical solution, when the railway bearing body 8 that rolls onto the defective product limiting groove 1015 is a defective product, at this time, the piston rod of the fifth cylinder 507 is controlled to retract, thereby driving the limiting plate 506 to move downward, and then the piston rod of the fourth cylinder 502 is controlled to extend, thereby driving the material return block 503 to move toward the direction close to the defective product storage table 102, and then pushing the railway bearing body 8 on the defective product limiting groove 1015 onto the defective product storage table 102.

[0070] In this embodiment, a material blocking assembly 6 is provided on the base 1, and the material blocking assembly 6 is mounted on one end of the feeding channel 101 close to the defective product limiting groove 1015. The material blocking assembly 6 includes a third support frame 601, and the third support frame 601 is fixedly mounted on the base 1. A material blocking plate 602 is slidably mounted on the third support frame 601 through a linear bearing 603. A sixth cylinder 604 is fixedly mounted on the base 1, and the top of the piston rod of the sixth cylinder 604 is fixedly connected to one side of the material blocking plate 602. Through the set material blocking assembly 6, when the railway bearing body 8 rolls from the detection limit groove 1012 to the position of the defective product limiting groove 1015, it is prevented from rolling out of the defective product limiting groove 1015 directly due to inertia.

[0071] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in actual process is described in detail below.

[0072] Working principle: When in use, the railway bearing body 8 is placed on the feeding channel 101, and then the railway bearing body 8 is pushed to roll on the feeding channel 101, so that it rolls into the detection limit groove 1012, and then the piston rod of the third cylinder 402 is controlled to extend, thereby driving the inverted U-shaped pressure block 403 to move downward, so that the inverted U-shaped pressure block 403 is pressed on the outer ring of the railway bearing body 8, thereby fixing the railway bearing body 8 on the detection limit groove 1012;

[0073] Then, the piston rod of the first cylinder 202 is controlled to extend, thereby driving the torque detection mechanism 3 to move in the direction of the detection limit groove 1012, so that the pneumatic chuck 3042 is against the end of the railway bearing body 8, and then the oil seal at the end of the railway bearing body 8 is clamped by the pneumatic chuck 3042. Then, the piston rod of the second cylinder 301 is controlled to extend, thereby driving the rack 305 to move in the direction away from the second cylinder 301. The moving rack 305 applies torque to the first transmission shaft 3031 through the gear 306. The first transmission shaft 3031 applies torque to the oil seal at the end of the railway bearing body 8 via the dynamic torque sensor 302, the second transmission shaft 3041, and the pneumatic chuck 3042. As the piston rod of the second cylinder 301 gradually extends, the torque applied to the oil seal at the end of the railway bearing body 8 gradually increases. When the applied torque reaches a preset value, the piston rod of the second cylinder 301 stops extending. If the second transmission shaft 3041 rotates during the process of increasing torque, it will drive the detection wheel 313 to rotate. The rotating detection wheel 313 will transmit the rotation signal to the encoder 312. The encoder 312 transmits the signal of the rotation of the second transmission shaft 3041 to the computer. At this time, the computer determines that the railway bearing body 8 is a defective product. If the second transmission shaft 3041 does not rotate during the process of increasing torque, it is considered that the railway bearing body 8 is a qualified product. After the test is completed, the pneumatic chuck 3042 is controlled to release the fixation of the oil seal on the end of the railway bearing body 8, and then the piston rod of the first cylinder 202 is controlled to retract, thereby driving the torque detection mechanism 3 to move away from the detection limit groove 1012 and reset.

[0074] Then, the piston rod of the seventh air cylinder 703 is controlled to extend, thereby lifting one end of the first push plate 701, thereby pushing the railway bearing body 8 out of the detection limit groove 1012 and rolling it into the defective product limit groove 1015;

[0075] If the railway bearing body 8 that has rolled into the defective product limiting groove 1015 is defective, the piston rod of the fifth cylinder 507 is controlled to retract, thereby driving the limiting plate 506 to move downward, and then the piston rod of the fourth cylinder 502 is controlled to extend, thereby driving the material stripping block 503 to move toward the defective product storage platform 102, thereby pushing the railway bearing body 8 on the defective product limiting groove 1015 onto the defective product storage platform 102, and then the piston rod of the fourth cylinder 502 is retracted, thereby driving the material stripping block 503 to return to its original position, and at the same time the piston rod of the fifth cylinder 507 is extended, so that the limiting plate 506 is returned to its original position upward;

[0076] If the railway bearing body 8 in the defective product limiting groove 1015 is a qualified product, first control the piston rod of the sixth cylinder 604 to extend, so that the baffle plate 602 moves up, and then control the piston rod of the eighth cylinder 903 to extend, so that one end of the second push plate 901 is lifted, and then the railway bearing body 8 in the defective product limiting groove 1015 is pushed out of the defective product limiting groove 1015 and flows to the next process, and then control the piston rod of the sixth cylinder 604 to retract, driving the baffle plate 602 to reset downward.

[0077] Parts not described in the present invention are the same as those in the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing torque testing machine, characterized in that: include: A base (1), wherein a feeding channel (101) and a defective product storage table (102) are respectively fixedly mounted on the base (1), and a detection limit groove (1012) and a defective product limit groove (1015) are respectively opened on the feeding channel (101); A clamping mechanism (2), wherein the clamping mechanism (2) is provided with two groups, and the two groups of the clamping mechanism (2) are respectively arranged at two ends of the base (1); the two groups of the clamping mechanism (2) are both provided with a torque detection mechanism (3), and the two groups of the torque detection mechanism (3) are respectively arranged on two sides of the detection limit groove (1012); the torque detection mechanism (3) is used to perform torque detection on the oil seals at two ends of the railway bearing body (8) located in the detection limit groove (1012); and the clamping mechanism (2) is used to drive the torque detection mechanism (3) to move in a direction close to the detection limit groove (1012) or in a direction away from the detection limit groove (1012); a bearing outer ring fixing mechanism (4), the bearing outer ring fixing mechanism (4) being mounted on the base (1), the bearing outer ring fixing mechanism (4) being located directly above the detection limit groove (1012), the bearing outer ring fixing mechanism (4) being used to squeeze and fix the outer ring of a railway bearing body (8) to be detected located in the detection limit groove (1012); The base (1) is provided with a material return mechanism (5), which is arranged on a side of the feeding channel (101) away from the defective product storage table (102), and the material return mechanism (5) is used to push a defective railway bearing body (8) that has rolled into the defective product limiting groove (1015) from the feeding channel (101) to the defective product storage table (102).

2. A bearing torque detector according to claim 1, characterized in that: The clamping mechanism (2) comprises a movable seat (201), a first cylinder (202), a first slide rail (203) and a first slider (204); the first cylinder (202) and the first slide rail (203) are both fixedly mounted on the base (1); the first slider (204) is fixed to the bottom of the movable seat (201); the first slider (204) is slidably mounted on the first slide rail (203); a fixed block (205) is fixedly connected to the bottom of the first slider (204); and an end of a piston rod of the first cylinder (202) is fixedly connected to one side of the fixed block (205).

3. A bearing torque detection machine according to claim 2, characterized in that: The torque detection mechanism (3) comprises a dynamic torque sensor (302), a first seat bearing (303), a second seat bearing (304) and a vertical plate (309); the dynamic torque sensor (302), the first seat bearing (303), the second seat bearing (304) and the vertical plate (309) are all fixedly mounted on the movable seat (201); the dynamic torque sensor (302) is located between the first seat bearing (303) and the second seat bearing (304); the inner ring of the first seat bearing (303) A first transmission shaft (3031) is fixedly mounted, a second transmission shaft (3041) is fixedly mounted on the inner ring of the second seat bearing (304), one end of the first transmission shaft (3031) is fixedly connected to the power input end of the dynamic torque sensor (302) via a coupling, a load end of the dynamic torque sensor (302) is fixedly connected to one end of the second transmission shaft (3041) via a coupling, and a pneumatic chuck (3042) is fixedly mounted on one end of the second transmission shaft (3041) away from the dynamic torque sensor (302); An encoder (312) is mounted on the vertical plate (309) via a mounting member, a detection wheel (313) is fixedly connected to the rotating shaft of the encoder (312), the detection wheel (313) is in close contact with the surface of the second transmission shaft (3041), and the second transmission shaft (3041) can drive the detection wheel (313) to rotate when rotating; A torque providing mechanism is provided at one end of the first transmission shaft (3031) away from the dynamic torque sensor (302).

4. A bearing torque detector according to claim 3, characterized in that: The torque providing mechanism comprises a second cylinder (301), the second cylinder (301) is fixedly mounted on the moving seat (201), one end of the first transmission shaft (3031) away from the dynamic torque sensor (302) is fixedly connected to a gear (306), the piston rod end of the second cylinder (301) is fixedly connected to a rack (305), the bottom of the rack (305) is fixedly connected to a second slider (307), a second slide rail (308) is fixedly mounted on the moving seat (201), the second slider (307) is slidably mounted on the second slide rail (308), and the gear (306) is meshed with the rack (305).

5. A bearing torque testing machine according to claim 4, characterized in that: The mounting member comprises a handle bolt (310), the handle bolt (310) being threadedly rotatably connected to the upper end of the vertical plate (309), one end of the handle bolt (310) being rotatably connected to a mounting seat (311), the encoder (312) being fixedly mounted on the mounting seat (311), one end of the mounting seat (311) being fixedly connected to a first guide rod (314) away from the encoder (312), a first guide sleeve (315) being fixedly mounted on the vertical plate (309), one end of the first guide rod (314) slidingly passing through the vertical plate (309) and then sliding out from the interior of the first guide sleeve (315).

6. A bearing torque detector according to claim 4, characterized in that: The bearing outer ring fixing mechanism (4) comprises a first support frame (401), the first support frame (401) is fixedly mounted on the base (1), a third cylinder (402) is fixedly mounted on the top of the first support frame (401), an inverted U-shaped pressure block (403) is arranged on the inner side of the first support frame (401), the bottom of the piston rod of the third cylinder (402) slides through the first support frame (401) and is fixedly connected to the top of the inverted U-shaped pressure block (403), a second guide rod (405) is fixedly connected to the top of the inverted U-shaped pressure block (403), a second guide sleeve (404) is fixedly connected to the top of the first support frame (401), the upper end of the second guide rod (405) slides through the first support frame (401) and slides out from the inside of the second guide sleeve (404), and the inverted U-shaped pressure block (403) is located directly above the detection limit groove (1012).

7. A bearing torque detector according to claim 6, characterized in that: The material-removing mechanism (5) comprises a second support frame (501), the second support frame (501) being fixedly mounted on the base (1), a fourth cylinder (502) being fixedly mounted on the second support frame (501), a material-removing block (503) being fixedly connected to the end of a piston rod of the fourth cylinder (502), a third guide rod (504) being fixedly connected to one side of the material-removing block (503), a third guide sleeve (505) being fixedly connected to the upper end of the second support frame (501), and the third guide sleeve (505) being slidably mounted on the third guide rod (504).

8. A bearing torque detector according to claim 7, characterized in that: A slide groove (1011) is provided on a side of the feeding channel (101) away from the second support frame (501), and a limit plate (506) is slidably arranged inside the slide groove (1011). A fifth cylinder (507) is fixedly connected to the bottom of the base (1), and the upper end of the piston rod of the fifth cylinder (507) slides through the base (1) and is fixedly connected to the bottom of the limit plate (506).

9. A bearing torque detector according to claim 8, characterized in that: The base (1) is provided with a material blocking assembly (6), the material blocking assembly (6) is mounted on one end of the feeding channel (101) close to the defective product limiting groove (1015), the material blocking assembly (6) comprises a third support frame (601), the third support frame (601) is fixedly mounted on the base (1), a material blocking plate (602) is slidably mounted on the third support frame (601) via a linear bearing (603), a sixth cylinder (604) is fixedly mounted on the base (1), and the top of the piston rod of the sixth cylinder (604) is fixedly connected to one side of the material blocking plate (602).

10. A bearing torque detector according to claim 9, characterized in that: The feeding channel (101) is provided with a first assembly hole (1013) and a second assembly hole (1014), respectively; the first assembly hole (1013) is connected to the detection limit groove (1012); a first material pushing mechanism (7) is arranged inside the first assembly hole (1013); and a second material pushing mechanism (9) is arranged inside the second assembly hole (1014); The first pushing mechanism (7) comprises a first pushing plate (701) and a second mounting frame (702), one end of the first pushing plate (701) is hinged in the first assembly hole (1013), the second mounting frame (702) is fixedly mounted on the bottom of the base (1), the lower end of the seventh cylinder (703) is hinged on the inner side of the second mounting frame (702), and the upper end of the seventh cylinder (703) passes through the base (1) and is hinged to the bottom of the other end of the first pushing plate (701); The second pushing mechanism (9) comprises a second pushing plate (901) and a third mounting frame (902), one end of the second pushing plate (901) is hinged in the second assembly hole (1014), the third mounting frame (902) is fixedly mounted on the bottom of the base (1), the lower end of the eighth cylinder (903) is hinged on the inner side of the third mounting frame (902), and the upper end of the eighth cylinder (903) passes through the base (1) and is hinged to the bottom of the other end of the second pushing plate (901).

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