Ball roller pre-tightening force torque dynamic detection device

Abstract

The utility model discloses a ball roller pre-tightening force torque dynamic detection device, which belongs to the technical field of bearing detection and comprises a detection table, a central through hole is arranged on the upper surface of the detection table, a positioning mechanism is mounted in the central through hole, a bearing body is arranged on the positioning mechanism, and an adaptive device is slidably clamped at the bottom of the detection table. A load assembly is installed on one side of the detection table, the adaptive device comprises a movable bottom plate, a lug plate is fixed to the bottom of one end of the movable bottom plate, a movable telescopic rod is fixed to the side wall of the lug plate, one end of the movable telescopic rod is fixed to the detection table, and a torque detection device is arranged on the movable bottom plate. The detection device can carry out adaptability detection on bearings with different inner diameters and outer diameters, the detection assembly is simple, the contact structure located in the bearing body can well stabilize the bearing body, dynamic detection can be carried out through the torque detection device, and the detection efficiency is improved. The load assembly on the outer side can apply uniform external pressure to the bearings with different outer diameters and drive the outer rings of the bearings to rotate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ball roller pre -tightening force torque dynamic detection device belongs to bearing detection technical field. BACKGROUND

[0002] Ball roller bearing is a kind of bearing type, mainly by ball, inner ring, outer ring and retainer are formed, ball is installed in the middle of inner steel ring and outer steel ring, when the inner ring or outer ring of bearing rotates, ball roller rolls between inner and outer rings, to realize low friction rotation, retainer ensures that there is proper spacing between balls, prevents them from colliding or jamming.

[0003] After the bearing is assembled as a whole, the roller and the sleeve ring on both sides are in a pre-pressed state, the purpose of bearing pre-tightening is to improve the rotation accuracy in operation and can reduce vibration and noise, and the pre-tightening force needs to be suitable for bearing, too large pre-tightening force will increase the rolling friction of roller, and more heat will be generated during use, and too small pre-tightening force has no pre-tightening effect, so the pre-tightening force of bearing roller needs to be detected after the bearing is assembled.

[0004] As the Chinese utility model patent file with application No. CN202121254397.9, a cylindrical roller bearing dynamic friction torque detection device belongs to bearing detection technical field, including core shaft, sleeve, test bearing, radial loading mechanism, drive shaft system and friction torque sensor, test bearing is clamped and fixed between core shaft and sleeve, test bearing is clamped between radial loading mechanism and the outer wall of sleeve, drive shaft system drives core shaft to drive test bearing to rotate. At the same time, friction torque sensor and a radial surface of sleeve are in contact to detect the dynamic friction of bearing.

[0005] The detection device in the above file can fully simulate the actual working condition of cylindrical roller bearing in gearbox, meet the requirement of detecting friction torque under the condition of applying different radial force and different rotating speed, its structure is simple and convenient to use, however, the measured bearing in the above file is located in the test bearing, and the measured bearing also needs to be sleeved on the core shaft, so the assembly test process is relatively complex, and the flexibility is poor when detecting different bearings, thus the utility model is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the above problems and provides a ball roller pre-tightening force torque dynamic detection device, which can adaptively detect bearings with different inner diameters and outer diameters, and the detection assembly is simple, the contact structure located in the bearing body can better stabilize the bearing, and dynamic detection can be carried out through the torque detection device.

[0007] The utility model discloses a ball roller pre -tensioning force torque dynamic detection device through following technical scheme to realize above -mentioned purpose, including detection stage, the surface of detection stage is opened with center through -hole, the center is installed with positioning mechanism in through -hole, is equipped with bearing body on positioning mechanism, the bottom sliding joint of detection stage has adaptive device, one side of detection stage is installed with load assembly, adaptive device includes movable base plate, one end bottom of movable base plate is fixed with ear plate, is fixed with movable telescopic link on the lateral wall of ear plate, one end of movable telescopic link and detection stage are fixed, be equipped with torque detection device on movable base plate, one side of detection stage is equipped with power connector through power line.

[0008] Preferably, in order to better stabilize the horizontal limit plate, a horizontal limit plate is fixed on the side wall of the movable base plate, the horizontal limit plate extends on both sides, a limit block is fixed on the bottom of the detection table, and a sliding groove for clamping the horizontal limit plate is formed in the side wall of the limit block.

[0009] Preferably, in order to facilitate the fixation of bearing bodies with different inner diameters, the positioning mechanism includes a positioning plate fixed on the bottom of the detection table through positioning bolts, a plug-in column is fixed on the positioning plate and the movable base plate, a contact structure is plugged into the plug-in column, and a blocking block is fixed on the bottom of the detection table and located beside the positioning plate.

[0010] Preferably, in order to avoid damaging the bearing and deforming the inner ring of the bearing, the contact structure includes a plug-in cylinder, a soft layer is semi-enclosed on the outer wall of the plug-in cylinder, and a friction notch is formed on the outer wall of the plug-in cylinder. The soft layer is used to contact the inner ring of the bearing and support the bearing, and the plug-in cylinder still has the ability to rotate.

[0011] Preferably, in order to conveniently obtain the rotating force of the inner ring, the torque detection device includes a lifting plate located below the movable base plate, a detection part is fixed on the lifting plate, the detection part extends below the bearing body through the lifting plate, the detection part is a torque sensing device, the top end of the detection part is fixedly connected with the bottom of the inner ring of the bearing during detection, and the detection part can be deformed when the inner ring rotates, so as to obtain the size of the rotating force at this time, thereby serving as a reference value of the ball roller pre-tensioning force torque.

[0012] Preferably, in order to facilitate personnel operation, a rotating shaft is rotatably connected to the lifting plate, the rotating shaft extends above the detection table through the movable base plate, the rotating shaft and the detection table are connected in a threaded manner, a rotating round handle is arranged on the top of the rotating shaft, a limit column is fixed on the bottom of the detection table, and a limit hole is formed in the lifting plate to allow the limit column to pass through.

[0013] Preferably, in order to facilitate providing uniform and stable external load for the rotation of the bearing body, the load assembly comprises a load telescopic rod arranged on the detection table side wall, a moving frame is fixed on the load telescopic rod, a strip-shaped extension plate in the same length direction as the load telescopic rod is arranged on the moving frame, a track hole is arranged on the strip-shaped extension plate, an adjusting roller is slidably clamped in the track hole, an arc-shaped plate is fixed at one end of the strip-shaped extension plate, side rollers are rotatably clamped at both ends of the arc-shaped plate, a load belt is sleeved on the side rollers and the adjusting roller, a power device is connected to the side rollers or the adjusting roller, and an adjusting mechanism is arranged on the adjusting roller.

[0014] Preferably, in order to facilitate adaptive transmission of bearings of different specifications, the adjusting mechanism comprises a control plate fixed at one end of the adjusting roller, an adjusting telescopic rod is fixed on the control plate, the adjusting telescopic rod is installed on the moving frame, and the power device is a power motor.

[0015] The beneficial effects of the utility model are that the detection device can adaptively detect bearings of different inner diameters and outer diameters, the detection assembly is simple to assemble, the contact structure in the bearing body can better stabilize the bearing body, and the torque detection device can be used for dynamic detection, the load assembly on the outer side can apply uniform external pressure to bearings of different outer diameters and drive the rotation of the bearing outer ring. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is a load assembly structure schematic view of the utility model.

[0018] Figure 3 It is a positioning mechanism bottom structure schematic view of the utility model.

[0019] Figure 4 It is a contact structure schematic view of the utility model.

[0020] Figure 5 It is a load belt structure schematic view of the utility model.

[0021] As shown in FIG. 1, a ball roller pre-tightening torque dynamic detection device comprises a detection table 1, a positioning mechanism 2, a bearing body 3, an adaptive device 4, a load assembly 5, a torque detection device 6, a contact structure 7, and an adjusting mechanism 8. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-5 As shown in FIG. 1, a ball roller pre-tightening torque dynamic detection device comprises a detection table 1, a positioning mechanism 2, a bearing body 3, an adaptive device 4, a load assembly 5, a torque detection device 6, a contact structure 7, and an adjusting mechanism 8.

[0024] As Figure 2 and Figure 4As shown, the positioning mechanism 2 comprises a positioning plate 201 fixed on the bottom of the detection table 1 by positioning bolts, the positioning plate 201 and the movable base plate 401 are both fixed with plug-in columns 202, the plug-in columns 202 are plugged with the contact structure 7, the bottom of the detection table 1 is fixed with a blocking block 203, the blocking block 203 is located beside the positioning plate 201, so that the positions of bearings with different inner diameters can be fixed conveniently, the contact structure 7 comprises a plug-in cylinder 701, the outer wall of the plug-in cylinder 701 is half-enclosed with a soft layer 702, the outer wall of the plug-in cylinder 701 is provided with a friction notch, the soft layer 702 is used for contacting the inner ring of the bearing and supporting the bearing, while the plug-in cylinder 701 still has the rotation ability, so that the bearing can be prevented from being damaged and the inner ring of the bearing can be prevented from being deformed.

[0025] As shown in Figure 3 and Figure 4 The torque detection device 6 comprises a lifting plate 601 located below the movable base plate 401, the lifting plate 601 is fixed with a detection part 602, the detection part 602 extends to the lower side of the bearing body 3 through the lifting plate 601, the detection part 602 is a torque sensing device, during detection, the top end of the detection part 602 and the bottom of the inner ring of the bearing are fixedly connected, when the inner ring rotates, the detection part 602 can be driven to deform, so that the size of the rotating force at this time can be obtained, thereby serving as a reference value of the ball roller pretightening force torque, so that the rotating force of the inner ring can be obtained conveniently, the lifting plate 601 is rotatably clamped with a rotating shaft 603, the rotating shaft 603 extends to the upper side of the detection table 1 through the movable base plate 401, the rotating shaft 603 and the detection table 1 are connected in a threaded manner, and the top of the rotating shaft 603 is provided with a rotating round handle, the bottom of the detection table 1 is fixed with a limiting column 604, the lifting plate 601 is provided with a limiting hole allowing the limiting column 604 to pass through, so that personnel can operate conveniently.

[0026] As shown in Figure 5As shown, the load assembly 5 comprises a load telescopic rod 507 arranged on the side wall of the detection table 1, a moving frame 501 is fixed on the load telescopic rod 507, a strip-shaped extension plate 502 in the same length direction as the load telescopic rod 507 is arranged on the moving frame 501, a track hole is arranged on the strip-shaped extension plate 502, an adjusting roller 503 is slidably clamped in the track hole, an arc-shaped plate 504 is fixed at one end of the strip-shaped extension plate 502, side rollers 505 are rotatably clamped at both ends of the arc-shaped plate 504, a load belt 506 is sleeved on the adjusting roller 503 and the side roller 505, a power device is connected to the adjusting roller 503 or the side roller 505, and an adjusting mechanism 8 is arranged on the adjusting roller 503, so that uniform and stable external load can be provided for the rotation of the bearing body 3, the adjusting mechanism 8 comprises a control plate 801 fixed at one end of the adjusting roller 503, and an adjusting telescopic rod 802 is fixed on the control plate 801 and installed on the moving frame 501, and the power device is a power motor, so that different specifications of bearings can be adaptively driven.

[0027] The detection device can adaptively detect bearings with different inner diameters and outer diameters, and the detection assembly is simple, the contact structure 7 arranged in the bearing body 3 can better stabilize the bearing body 3, and the dynamic detection can be performed through the torque detection device 6, and the load assembly 5 on the outer side can apply uniform external pressure to bearings with different outer diameters and drive the bearing outer ring to rotate.

[0028] In use, the bearing body 3 is sleeved outside the contact structure 7, then the moving base plate 401 can drive one contact structure 7 to move, so that each soft layer 702 is attached to the bearing inner ring, then the detection part 602 is abutted against the bottom of the bearing inner ring by rotating the rotating shaft 603, then the load belt 506 on the moving frame 501 is pressed on the outer wall of the bearing body 3, the position of the adjusting control plate 801 can be adjusted to adapt to different outer diameters of the bearing body 3, and then dynamic detection can be performed when the bearing body 3 rotates.

[0029] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A dynamic detection device for preload torque of ball rollers, characterized in that: The test platform (1) includes a central through hole on its upper surface, a positioning mechanism (2) installed inside the central through hole, a bearing body (3) on the positioning mechanism (2), an adapter (4) slidably connected to the bottom of the test platform (1), a load assembly (5) installed on one side of the test platform (1), the adapter (4) includes a movable base plate (401), an ear plate fixed to the bottom of one end of the movable base plate (401), a movable telescopic rod (402) fixed to the side wall of the ear plate, one end of the movable telescopic rod (402) being fixed to the test platform (1), a torque detection device (6) on the movable base plate (401), and a power connector on one side of the test platform (1) via a power cord.

2. The ball roller preload torque dynamic detection device according to claim 1, characterized in that: A horizontal limiting plate (403) is fixed on the side wall of the movable base plate (401). The horizontal limiting plate (403) extends to both sides. A limiting block (404) is fixed at the bottom of the detection table (1). A sliding groove for engaging the horizontal limiting plate (403) is provided on the side wall of the limiting block (404).

3. The ball roller preload torque dynamic detection device according to claim 1, characterized in that: The positioning mechanism (2) includes a positioning plate (201) fixed to the bottom of the testing table (1) by positioning bolts. Both the positioning plate (201) and the movable base plate (401) are fixed with plug-in posts (202). A contact structure (7) is plugged into the plug-in post (202). A blocking block (203) is fixed to the bottom of the testing table (1). The blocking block (203) is located next to the positioning plate (201).

4. The ball roller preload torque dynamic detection device according to claim 3, characterized in that: The contact structure (7) includes a plug tube (701), the upper half of the outer wall of the plug tube (701) is surrounded by a soft layer (702), and the outer wall of the plug tube (701) is provided with a friction notch.

5. The ball roller preload torque dynamic detection device according to claim 1, characterized in that: The torque detection device (6) includes a lifting plate (601) located below the movable base plate (401), and a detection part (602) is fixed on the lifting plate (601). The detection part (602) extends through the lifting plate (601) to the underside of the bearing body (3).

6. The ball roller preload torque dynamic detection device according to claim 5, characterized in that: A rotating shaft (603) is rotatably engaged on the lifting plate (601). The rotating shaft (603) extends through the movable base plate (401) to the top of the testing table (1). The rotating shaft (603) and the testing table (1) are connected by a thread. The top of the rotating shaft (603) is provided with a rotating round handle. The bottom of the testing table (1) is fixed with a limit post (604). The lifting plate (601) is provided with a limit hole that allows the limit post (604) to pass through.

7. The ball roller preload torque dynamic detection device according to claim 1, characterized in that: The load assembly (5) includes a load telescopic rod (507) defined on the side wall of the test bench (1). A movable frame (501) is fixed on the load telescopic rod (507). A strip extension plate (502) with the same length direction as the load telescopic rod (507) is provided on the movable frame (501). A track hole is provided on the strip extension plate (502). An adjusting roller (503) is slidably engaged in the track hole. An arc plate (504) is fixed at one end of the strip extension plate (502). Side rollers (505) are rotatably engaged at both ends of the arc plate (504). A load belt (506) is sleeved on the side rollers (505) and the adjusting rollers (503). A power device is provided on the adjusting rollers (503). An adjusting mechanism (8) is provided on the adjusting rollers (503).

8. The ball roller preload torque dynamic detection device according to claim 7, characterized in that: The adjustment mechanism (8) includes a control plate (801) fixed at one end of the adjustment roller (503), an adjustment telescopic rod (802) fixed on the control plate (801), the adjustment telescopic rod (802) is mounted on the movable frame (501), and the power device is a power motor.

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