Needle roller drift detection device

By designing a needle rolling drift detection device, the precise detection of the needle rolling is achieved using electromagnetic sensors and clamping mechanisms, the problems of inefficient detection efficiency and inaccurate data in the prior art are solved, and the efficiency and accuracy of detection are improved.

CN119555378APending Publication Date: 2025-03-04CHONGQING GANGYANG MASCH MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411705894.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

In the production process of needle roller bearings, relying on manual operations and simple detection tools leads to inefficient detection and inaccurate data, which is susceptible to human factors.

Method used

A needle roller drift detection device is designed, including a base plate, a measuring table, a clamping mechanism and a measuring mechanism. The measuring mechanism is bonded to the surface of the raw material through an electromagnetic sensor, and the clamping mechanism realizes the positioning and rotation of the raw material through a motor and a threaded rod to ensure the accuracy and stability of the detection.

Benefits of technology

It improves the efficiency of pin rolling inspection and the accuracy of data, reduces the influence of human factors, and ensures the reliability of the detection results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119555378A_ABST
    Figure CN119555378A_ABST
Patent Text Reader

Abstract

The invention provides a roller pin drift detection device, and relates to the technical field of bearing production, the roller pin drift detection device comprises a bottom plate, the upper end of the bottom plate is provided with a measuring table, the upper end of the measuring table is provided with a raw material, and the upper end of the measuring table is provided with a clamping mechanism used for clamping and positioning the raw material. A user sleeves the outer side of a threaded rod with a raw material, then the outer side of the raw material is tightly clamped by a clamping frame through cooperation of a torsional spring and a magnet, then a first spring pushes a movable frame to drive an electromagnetic sensor to be attached to the outer side of the raw material, and after the raw material is positioned, the user can rotate a nut; a nut moves downwards through threads, the nut cooperates with an extension block to push a first push rod and a second push rod to form a triangle, a connecting frame is driven to be attached to the inner wall of the raw material, then a motor can drive the connecting frame and the interior of the raw material to rotate, the interior of the raw material can be conveniently detected by an electromagnetic sensor, and the detection effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of bearing production, and in particular to a device for detecting roller drift. Background Art

[0002] Needle roller refers to the rotating body on needle roller bearings, which is mainly used in various types of bearings. It is a roller bearing with cylindrical rollers. In the production process of needle roller bearings, needle rollers are the key components of bearings, and their quality directly determines the operation effect and life of bearings. However, in the production process of needle rollers, manual operation and simple detection tools are often relied on. Not only is the detection efficiency low, but the detection structure is also very susceptible to human factors, resulting in inaccurate data. Therefore, we propose a needle roller drift detection device to solve the above problems. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a roller needle drift detection device, which solves the problem that in the process of roller needle production, it is often necessary to rely on manual operation and simple detection tools. Not only is the detection efficiency low, but the detection structure is also very susceptible to human factors, resulting in inaccurate data.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A roller needle drift detection device includes a base plate, a measuring table is installed on the upper end of the base plate, a raw material is placed on the upper end of the measuring table, a clamping mechanism for clamping and positioning the raw material is installed on the upper end of the measuring table, a measuring mechanism for detecting the raw material is installed on the front end of the upper surface of the measuring table, the measuring mechanism is in contact with the outer surface of the raw material, and the measuring mechanism is connected to an external control terminal through a wire.

[0006] Preferably, the measuring mechanism includes a No. 1 slide groove, which is arranged at the front end of the upper surface of the measuring platform, and a movable frame is movably installed inside the No. 1 slide groove, and an electromagnetic sensor is installed at the upper end of the rear side of the movable frame. The electromagnetic sensor is in contact with the surface of the raw material, and the electromagnetic sensor is connected to an external control terminal through a wire.

[0007] Preferably, a guide rod No. 1 is fixedly installed in the middle of the inner part of the No. 1 slide groove, and the rod body of the guide rod No. 1 is movably installed in the inner part of the movable frame, and a spring No. 1 is installed on the outer side of the rod body of the guide rod No. 1 between the side of the movable frame away from the electromagnetic sensor and the No. 1 slide groove.

[0008] Preferably, the clamping mechanism includes a motor and a support frame, the motor is installed inside the measuring table, a threaded rod is installed at the output end of the motor, the threaded rod is movably located inside the raw material, connecting frames are movably installed on both sides of the threaded rod, the connecting frames are in contact with the inner wall of the raw material, the support frame is installed on the rear side of the upper surface of the measuring table, and clamping frames are movably installed at both ends of the support frame, and the clamping frames are in contact with the outer surface of the raw material respectively.

[0009] Preferably, grooves are provided on both sides of the lower end of the threaded rod, a No. 1 push rod is movably installed on the upper end of the groove, and a No. 2 push rod is movably installed on the lower end of the groove, the No. 1 push rod and the No. 2 push rod are snap-connected at the ends close to each other, and the end of the connecting frame away from the raw material is movably installed inside the No. 2 push rod.

[0010] Preferably, a No. 2 slide groove is provided at the front and rear ends of the groove, and sliders are movably installed at the upper ends of the overlapping No. 2 slide grooves, and a No. 1 fixed rod is installed between the sliders, and the upper end of the No. 1 push rod is movably installed between the sliders, and the rod body of the No. 1 fixed rod is movably installed in the interior of the No. 1 push rod.

[0011] Preferably, a No. 2 guide rod is installed inside the No. 2 slide groove, and the rod body of the No. 2 guide rod is movably installed in the interior of the slider, and a No. 2 spring is sleeved on the outer side of the rod body of the No. 2 guide rod located between the lower surface of the slider and the No. 2 slide groove, and an extension block is installed at one end of the slider close to the raw material, and a nut is installed on the outer side of the rod body of the threaded rod through a thread, and the nut is fit between the extension block.

[0012] Preferably, a No. 4 fixing rod is installed at the inner lower end of the groove, and the rod body of the No. 4 fixing rod is movably installed through the inner lower end of the No. 2 push rod, and a No. 2 fixing rod and a No. 3 fixing rod are installed on both sides of the inner upper end of the No. 2 push rod, and the rod body of the No. 2 fixing rod is movably installed through the inside of the No. 1 push rod, and the rod body of the No. 3 fixing rod is movably installed through the inside of the connecting frame.

[0013] Preferably, gears are movably installed at both ends of the support frame, the gears are meshingly connected, and No. 5 fixing rods are installed at both ends of the support frame. The rod bodies of the No. 5 fixing rods are movably installed inside the gears, and clamping frames are installed at the front ends of the gears.

[0014] Preferably, a torsion spring is respectively mounted between the gear and the fifth fixing rod.

[0015] 1. In the present invention, the user sets the raw material on the outside of the threaded rod, and then through the cooperation of the torsion spring and the magnet, the clamping frame tightly clamps the outside of the raw material, and then the No. 1 spring pushes the movable frame to drive the electromagnetic sensor to fit the outside of the raw material. After the raw material is positioned, the user can rotate the nut to move the nut down through the thread, so that the nut cooperates with the extension block to push the No. 1 push rod and the No. 2 push rod to form a triangle, so that it drives the connecting frame and the inner wall of the raw material to fit, and then the motor can drive the connecting frame and the inside of the raw material to rotate, which is convenient for the electromagnetic sensor to detect the inside of the raw material and improve the detection effect.

[0016] 2. In the present invention, the clamping frame is engaged with the outside of the raw material and the connecting frame is engaged with the inside of the raw material, so that when the connecting frame drives the inside of the raw material to rotate, the outside of the raw material remains stationary, so that the electromagnetic sensor can accurately and stably detect the inside of the raw material, thereby improving the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a front view structural schematic diagram of the present invention;

[0019] Figure 3 It is a side structural schematic diagram of the present invention;

[0020] Figure 4 yes Figure 2 A three-dimensional schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 5 yes Figure 2 A three-dimensional schematic diagram of the cross-sectional structure at the middle BB;

[0022] Figure 6 yes Figure 3 A three-dimensional schematic diagram of the cross-sectional structure at CC in the middle;

[0023] Figure 7 yes Figure 4 The enlarged three-dimensional structure diagram at D in the middle;

[0024] Figure 8 yes Figure 5 The enlarged three-dimensional structure diagram at E in the middle;

[0025] Fig. 9 yes Figure 6 The enlarged three-dimensional structure diagram at F in the middle;

[0026] Fig.10 yes Fig. 9 Schematic diagram of the enlarged three-dimensional structure at G in the middle;

[0027] Fig.11 yes Fig. 9 Schematic diagram of the enlarged three-dimensional structure at H in the middle.

[0028] In the figure: 1, bottom plate; 2, measuring table; 3, measuring mechanism; 301, slide slot No. 1; 302, guide rod No. 1; 303, spring No. 1; 304, movable frame; 305, electromagnetic sensor; 4, raw material; 5, clamping mechanism; 501, motor; 502, threaded rod; 503, groove; 504, slide slot No. 2; 505, guide rod No. 2; 506, spring No. 2; 507, slider; 508, fixed rod No. 1; 509, extension block; 510, nut; 511, push rod No. 1; 512, push rod No. 2; 513, fixed rod No. 2; 514, fixed rod No. 3; 515, connecting frame; 516, fixed rod No. 4; 517, supporting frame; 518, fixed rod No. 5; 519, gear; 520, clamping frame. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 11 As shown, a roller needle drift detection device includes a base plate 1, a measuring table 2 is installed on the upper end of the base plate 1, a raw material 4 is placed on the upper end of the measuring table 2, a clamping mechanism 5 for clamping and positioning the raw material 4 is installed on the upper end of the measuring table 2, a measuring mechanism 3 for detecting the raw material 4 is installed on the front end of the upper surface of the measuring table 2, the measuring mechanism 3 is in contact with the outer surface of the raw material 4, and the measuring mechanism 3 is connected to an external control terminal through a wire.

[0031] like Figure 7 and Figure 8 As shown, the measuring mechanism 3 includes a No. 1 slide groove 301, which is arranged at the front end of the upper surface of the measuring platform 2, and a movable frame 304 is movably installed inside the No. 1 slide groove 301, and an electromagnetic sensor 305 is installed at the upper end of the rear side of the movable frame 304. The electromagnetic sensor 305 is in contact with the surface of the raw material 4, and the electromagnetic sensor 305 is connected to the external control terminal through a wire. A No. 1 guide rod 302 is fixedly installed in the middle of the No. 1 slide groove 301, and the rod body of the No. 1 guide rod 302 is movably installed in the interior of the movable frame 304, and a No. 1 spring 303 is installed on the outer side of the rod body of the No. 1 guide rod 302 located between the side of the movable frame 304 away from the electromagnetic sensor 305 and the No. 1 slide groove 301.

[0032] The movable frame 304 is pushed by the No. 1 spring 303, so that the movable frame 304 drives the electromagnetic sensor 305 to fit closely with the surface of the raw material 4, so that during the rotation of the raw material 4, the electromagnetic sensor 305 can stably detect the inside of the raw material 4, thereby improving the detection efficiency of the raw material 4 and the accuracy of the data;

[0033] Then the No. 1 slide groove 301 and the No. 1 guide rod 302 are used to assist the movable frame 304 in moving, so that when the user needs to replace the raw material 4, the movable frame 304 can be pulled to allow the movable frame 304 to drive the electromagnetic sensor 305 to temporarily separate from the raw material 4, which is more convenient.

[0034] like Figure 5 , Figure 7 , Fig. 9 , Fig.10 and Fig.11As shown, the clamping mechanism 5 includes a motor 501 and a support frame 517. The motor 501 is installed inside the measuring table 2. A threaded rod 502 is installed at the output end of the motor 501. The threaded rod 502 is movably located inside the raw material 4. Connecting frames 515 are movably installed on both sides of the threaded rod 502. The connecting frames 515 are fitted with the inner wall of the raw material 4. The support frame 517 is installed on the rear side of the upper surface of the measuring table 2. Clamping frames 520 are movably installed at both ends of the support frame 517. The clamping frames 520 are fitted with the outer surface of the raw material 4 respectively. The threaded rod 502 Grooves 503 are provided on both sides of the lower end of the interior, and a No. 1 push rod 511 is movably installed on the upper end of the groove 503, and a No. 2 push rod 512 is movably installed on the lower end of the groove 503. The No. 1 push rod 511 and the No. 2 push rod 512 are connected at the ends close to each other, and the ends of the connecting frame 515 away from the raw material 4 are movably installed inside the No. 2 push rod 512. The front and rear ends of the interior of the groove 503 are respectively provided with No. 2 slide grooves 504, and the upper ends of the No. 2 slide grooves 504 that overlap each other are movably installed with sliders 507, and No. 1 fixed slides are respectively installed between the sliders 507. The upper ends of the first push rod 511 are movably mounted between the sliders 507, and the rod bodies of the first fixed rod 508 are movably installed in the first push rod 511, and the second guide rods 505 are installed in the second slide grooves 504, and the rod bodies of the second guide rods 505 are movably installed in the sliders 507. The outer sides of the rod bodies of the second guide rods 505 located between the lower surface of the slider 507 and the second slide grooves 504 are respectively sleeved with second springs 506, and the ends of the sliders 507 close to the raw material 4 are respectively installed with extension blocks 509, and the threaded rods A nut 510 is installed on the outer side of the rod body 502 through a thread, and the nut 510 fits with the extension block 509. A No. 4 fixing rod 516 is installed on the inner lower end of the groove 503. The rod body of the No. 4 fixing rod 516 is movably installed through the inner lower end of the No. 2 push rod 512. A No. 2 fixing rod 513 and a No. 3 fixing rod 514 are installed on both sides of the inner upper end of the No. 2 push rod 512. The rod body of the No. 2 fixing rod 513 is movably installed through the inside of the No. 1 push rod 511, and the rod body of the No. 3 fixing rod 514 is movably installed through the inside of the connecting frame 515.

[0035] After the user sets the raw material 4 on the outside of the threaded rod 502, the user rotates the nut 510 to allow the nut 510 to move downward along the threaded rod 502 through the thread, and then after the nut 510 and the extension block 509 are connected, as the nut 510 moves downward, the nut 510 will push the extension block 509 and the slider 507 to move downward, allowing the slider 507 to push the first push rod 511 and the second push rod 512 to rotate, so that the first push rod 511 and the second push rod 512 are connected through the first fixing rod 508, the second fixing rod 513 and the fourth fixing rod 514. The fixed rods 516 cooperate with each other to rotate, so that a triangle is formed between the No. 1 push rod 511, the No. 2 push rod 512 and the threaded rod 502, and the No. 3 fixed rod 514 pushes the connecting frame 515 to move outward, so that the connecting frame 515 is closely fitted with the inner wall of the raw material 4. Then, when the motor 501 drives the threaded rod 502 to rotate, the threaded rod 502 can drive the inside of the raw material 4 to rotate through the No. 1 push rod 511, the No. 2 push rod 512 and the connecting frame 515, so as to cooperate with the electromagnetic sensor 305 to detect the roller needle inside the raw material 4;

[0036] The second slide groove 504 and the second guide rod 505 are used to assist the slider 507 to move up and down, thereby improving the stability of the slider 507 during the up and down movement. At the same time, the outward extension length of the first push rod 511 and the second push rod 512 can be adjusted according to the push of the slider 507, thereby realizing the fitting and positioning of raw materials 4 of various diameters and realizing the detection of various raw materials 4;

[0037] The No. 2 spring 506 is used to assist in pushing the slider 507 to move upward, so that when the raw material 4 needs to be disassembled, the user only needs to reverse the nut 510 one or two turns to allow the No. 2 spring 506 to push the slider 507 to move upward, so that the slider 507 cooperates with the No. 1 push rod 511 to drive the connecting frame 515 and the raw material 4 to separate, so that the user can disassemble the raw material 4. Then, when the new raw material 4 is again mounted on the outside of the connecting frame 515, the user only needs to rotate the nut 510 forward one or two turns to allow the nut 510 to push the slider 507 to move downward, and the slider 507 cooperates with the No. 1 push rod 511 to drive the connecting frame 515 and the inner wall of the raw material 4 to engage, thereby realizing the connection work between the raw material 4 and the connecting frame 515, which is more convenient.

[0038] like Figure 4 , Figure 7 and Fig. 9As shown, gears 519 are movably installed at both ends of the interior of the support frame 517, and the gears 519 are meshingly connected. A No. 5 fixing rod 518 is installed at both ends of the interior of the support frame 517, and the rod body of the No. 5 fixing rod 518 is movably installed in the interior of the gear 519. A clamping frame 520 is installed at the front end of the gear 519, and a torsion spring is installed between the gear 519 and the No. 5 fixing rod 518.

[0039] When the raw material 4 needs to be installed, the user first pulls the clamping frame 520 to both sides, allowing the clamping frame 520 to drive the gear 519 to rotate with the No. 5 fixed rod 518, and through the meshing between the gears 519, when one of the clamping frames 520 moves outward, the other clamping frame 520 will move outward with it, and then when the gear 519 and the No. 5 fixed rod 518 rotate, the torsion spring will be twisted, and then the user will sleeve the raw material 4 on the outside of the threaded rod 502. After the raw material 4 is sleeved, the user can slowly loosen the clamping frame 520, allowing the torsion spring to drive the gear 519 to reset and rotate, so that the gear 519 drives the clamping frame 520 to fit with the raw material 4, and the torsion force of the torsion spring is used to push the clamping work on the outside of the raw material 4, maintain the stability of the outside of the raw material 4, and ensure that when the threaded rod 502 drives the inside of the raw material 4 to rotate, the outside of the raw material 4 remains stable and does not rotate, which is convenient for the electromagnetic sensor 305 to detect the inside of the raw material 4.

[0040] The working principle of this roller needle drift detection device:

[0041] When in use, the user first pulls the clamping frame 520 to both sides, allowing the clamping frame 520 to drive the gear 519 to rotate with the fifth fixing rod 518, and through the meshing between the gears 519, the other clamping frame 520 follows and moves outward, and then when the gear 519 and the fifth fixing rod 518 rotate, the torsion spring is twisted, and then the user sets the raw material 4 on the outside of the threaded rod 502. After the raw material 4 is set, the user can slowly loosen the clamping frame 520 and allow the torsion spring to drive the gear 519 to rotate. The wheel 519 is reset and rotated, so that the gear 519 drives the clamping frame 520 to fit with the raw material 4, so as to realize the clamping work on the outer side of the raw material 4 through the torsion force of the torsion spring. Then, after the raw material 4 is positioned, the user rotates the nut 510 to allow the nut 510 to move down along the threaded rod 502 through the thread. Then, after the nut 510 and the extension block 509 are connected, as the nut 510 moves downward, the nut 510 will push the extension block 509 and the slider 507 to move downward, so that the slider 507 pushes a The push rod 511 and the push rod 512 rotate, so that the push rod 511 and the push rod 512 rotate through the cooperation between the first fixed rod 508, the second fixed rod 513 and the fourth fixed rod 516, so that the push rod 511, the push rod 512 and the threaded rod 502 form a triangle, and the connecting frame 515 is pushed outward by the third fixed rod 514, so that the connecting frame 515 is closely fitted with the inner wall of the raw material 4, and then the push of the movable frame 304 by the first spring 303 , let the movable frame 304 drive the electromagnetic sensor 305 to fit closely with the surface of the raw material 4, and then when the motor 501 drives the threaded rod 502 to rotate, the threaded rod 502 can drive the inside of the raw material 4 to rotate through the No. 1 push rod 511, the No. 2 push rod 512 and the connecting frame 515, so as to cooperate with the electromagnetic sensor 305 to detect the roller needle inside the raw material 4, and then the detection data is transmitted to the outside control terminal through the wire, so that the user or the internal program of the terminal can determine whether the roller needle inside the raw material 4 is qualified.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A roller needle drift detection device, comprising a base plate (1), characterized in that: A measuring platform (2) is installed at the upper end of the base plate (1), a raw material (4) is placed at the upper end of the measuring platform (2), a clamping mechanism (5) for clamping and positioning the raw material (4) is installed at the upper end of the measuring platform (2), a measuring mechanism (3) for detecting the raw material (4) is installed at the front end of the upper surface of the measuring platform (2), the measuring mechanism (3) is in contact with the outer surface of the raw material (4), and the measuring mechanism (3) is connected to an external control terminal via a wire.

2. A roller drift detection device according to claim 1, characterized in that: The measuring mechanism (3) comprises a first slide groove (301), the first slide groove (301) is arranged at the front end of the upper surface of the measuring platform (2), a movable frame (304) is movably installed inside the first slide groove (301), an electromagnetic sensor (305) is installed at the upper end of the rear side of the movable frame (304), the electromagnetic sensor (305) is in contact with the surface of the raw material (4), and the electromagnetic sensor (305) is connected to an external control terminal through a wire.

3. A roller drift detection device according to claim 2, characterized in that: A No. 1 guide rod (302) is fixedly installed in the middle of the No. 1 slide groove (301), and the rod body of the No. 1 guide rod (302) is movably installed in the interior of the movable frame (304), and a No. 1 spring (303) is sleeved and installed on the outer side of the rod body of the No. 1 guide rod (302) located between the side of the movable frame (304) away from the electromagnetic sensor (305) and the No. 1 slide groove (301).

4. A roller drift detection device according to claim 1, characterized in that: The clamping mechanism (5) comprises a motor (501) and a support frame (517), wherein the motor (501) is mounted inside the measuring platform (2), a threaded rod (502) is mounted at the output end of the motor (501), the threaded rod (502) is movably located inside the raw material (4), connecting frames (515) are movably mounted on both sides of the threaded rod (502), the connecting frames (515) are in contact with the inner wall of the raw material (4), the support frame (517) is mounted on the rear side of the upper surface of the measuring platform (2), and clamping frames (520) are movably mounted on both ends of the support frame (517), the clamping frames (520) are in contact with the outer surface of the raw material (4) respectively.

5. A roller drift detection device according to claim 4, characterized in that: Grooves (503) are respectively provided on both sides of the lower end of the threaded rod (502), and a No. 1 push rod (511) is movably installed at the upper end of the groove (503), and a No. 2 push rod (512) is movably installed at the lower end of the groove (503). The No. 1 push rod (511) and the No. 2 push rod (512) are engaged with each other at one end thereof, and the end of the connecting frame (515) away from the raw material (4) is movably installed inside the No. 2 push rod (512).

6. A roller needle drift detection device according to claim 5, characterized in that: A No. 2 slide groove (504) is respectively arranged at the front and rear ends of the groove (503), and a slider (507) is movably installed at the upper ends of the No. 2 slide grooves (504) that overlap each other, and a No. 1 fixed rod (508) is respectively installed between the sliders (507), and the upper end of the No. 1 push rod (511) is movably installed between the sliders (507), and the rod body of the No. 1 fixed rod (508) is movably installed in the interior of the No. 1 push rod (511).

7. A roller drift detection device according to claim 6, characterized in that: A No. 2 guide rod (505) is installed inside the No. 2 slide groove (504), and the rod body of the No. 2 guide rod (505) is movably installed inside the slider (507). A No. 2 spring (506) is sleeved on the outer side of the rod body of the No. 2 guide rod (505) located between the lower surface of the slider (507) and the No. 2 slide groove (504). An extension block (509) is installed at one end of the slider (507) close to the raw material (4). A nut (510) is installed on the outer side of the rod body of the threaded rod (502) through a thread, and the nut (510) is fitted with the extension block (509).

8. The device for detecting needle roller drift according to claim 6, characterized in that: A fourth fixing rod (516) is installed at the lower end of the groove (503), and the rod body of the fourth fixing rod (516) is movably installed in the lower end of the second push rod (512). A second fixing rod (513) and a third fixing rod (514) are installed on both sides of the upper end of the second push rod (512), and the rod body of the second fixing rod (513) is movably installed in the interior of the first push rod (511). The rod body of the third fixing rod (514) is movably installed in the interior of the connecting frame (515).

9. A roller drift detection device according to claim 4, characterized in that: Gears (519) are movably mounted at both ends of the support frame (517), and the gears (519) are meshedly connected. A fifth fixing rod (518) is mounted at both ends of the support frame (517), and the rod body of the fifth fixing rod (518) is movably installed in the gear (519). A clamping frame (520) is mounted at the front end of the gear (519).

10. A roller needle drift detection device according to claim 9, characterized in that: A torsion spring is sleeved and installed between the gear (519) and the fifth fixing rod (518).