Bearing driving torque quality inspection jig

Abstract

The utility model relates to bearing technical field provides a kind of bearing drive torque quality inspection fixture, comprising: support assembly;Measuring assembly, including link chuck and high-precision torque instrument, the high-precision torque instrument is configured at the top of the link chuck;Fixed component, including support shaft and star wheel structure parts, the lower part of the support shaft is configured on the support assembly, the angular contact bearing to be measured is sleeved on the upper portion of the support shaft, the star wheel structure parts is sleeved on the outside of angular contact bearing, the bottom of the link chuck is connected with the star wheel structure parts. The utility model uses high-precision torque instrument, a chuck type part, can be used to accurately quantitative test the rotation tightness after angular contact bearing pre-tightening and in the form of torque display, good reliability.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a bearing drive torque quality inspection fixture. Background Technology

[0002] Bearings are essential components of mechanical equipment. Angular contact bearings are widely used in high-speed, heavy-duty rotating pairs. Appropriate preload is crucial for ensuring normal bearing operation and maintaining its normal lifespan. Applying too little or too much preload to the bearing will cause premature damage and failure, thus reducing its effective service life.

[0003] Traditional assembly methods rely on workers' "feel" to test the tightness of angular contact bearings after pre-tightening. This method suffers from unstable force after pre-tightening, and the traditional method of manually holding the workpiece introduces significant individual differences between workers. Each worker's posture and angle when holding the workpiece vary, affecting the measurement results. Consequently, the accuracy of pre-tightening tightness is poor, cannot be quantified, and lacks reliability. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a bearing drive torque quality inspection fixture.

[0005] A bearing drive torque quality inspection fixture provided by this utility model includes: Support components; The measuring assembly includes a connecting chuck and a high-precision torque meter, the high-precision torque meter being disposed on top of the connecting chuck; The fixed assembly includes a support shaft and a star wheel structure component. The lower part of the support shaft is disposed on the support assembly. The angular contact bearing to be measured is mounted on the upper part of the support shaft. The star wheel structure component is mounted on the outside of the angular contact bearing. The bottom of the connecting chuck is engaged with the star wheel structure component. The torque of the angular contact bearing can be measured by twisting the high-precision torque meter.

[0006] Preferably, the support assembly includes a worktable panel, a fixing plate, a tensioning sleeve, and a tensioning screw. The fixing plate is detachably mounted on the worktable panel. The support shaft is a hollow shaft. The bottom of the support shaft is fitted onto the tensioning sleeve, and the tensioning sleeve is fixed to the fixing plate by the tensioning screw. The support shaft is fixed by the circumferential outward expansion of the tensioning sleeve.

[0007] Preferably, the tensioning sleeve includes different sizes and models to meet the fixing requirements of different models of hollow support shafts.

[0008] Preferably, the tensioning sleeve includes a connecting base and a tensioning portion. The bottom of the tensioning portion is integrally connected to the middle of the connecting base. When the tensioning screw fixes the tensioning sleeve, the axial pressure of the tensioning screw on the tensioning portion causes the tensioning portion to bulge in a radially outward direction.

[0009] Preferably, the fixing assembly further includes a bearing housing, which is fitted onto the upper part of the support shaft, and the angular contact bearing is fitted onto the support shaft with the bottom of the bearing inner ring supported on the bearing housing.

[0010] Preferably, the fixing assembly further includes a locking nut disposed on top of the support shaft, thereby enabling the angular contact bearing to be locked onto the support shaft.

[0011] Preferably, the star wheel structure component is circumferentially equipped with multiple mounting platforms, and the bottom of the connecting chuck is equipped with multiple slots. The connecting chuck is engaged with the multiple mounting platforms through the slots, thereby realizing the driving connection between the connecting chuck and the star wheel structure component.

[0012] Preferably, the top of the connecting chuck is provided with a drive rod, and the bottom of the high-precision torque meter is provided with a mounting hole. The mounting hole matches the drive rod, and the mounting hole is fitted onto the drive rod to connect the high-precision torque meter with the connecting chuck.

[0013] Preferably, the cross-section of the drive rod is non-circular, which causes phase interference between the mounting hole and the drive rod during rotation.

[0014] Preferably, the bottom of the star wheel structure part has an assembly cavity, which is adapted to fit the outer ring of the angular contact bearing.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention employs a high-precision torque meter with a chuck-type component, which can be used to accurately quantify and test the rotational tightness of angular contact bearing assemblies after pre-tightening, and display it in the form of torque. This solves the problem of relying on the worker's "feel" to test the rotational tightness of angular contact bearing assemblies after pre-tightening in the existing technology, and has good reliability. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the structure of this utility model; Figure 3This is a schematic diagram of the structure when the tensioning sleeve is fixed to the fixed plate. Figure 4 A schematic diagram of the connecting chuck structure; Figure 5 This is a schematic diagram of the structure of a high-precision torque meter; Figure 6 A schematic diagram of the star wheel structure component being assembled onto the angular contact bearing being measured; Figure 7 A schematic diagram of the structure when the bearing housing is mounted on the support shaft; Figure 8 This is a schematic cross-sectional view of the star wheel structure component.

[0017] The diagram shows: Workbench panel 1; Fixing plate 2; Tightening the loop 3; Connecting base 31; Tensioned portion 32; Tightening screw 4; Support shaft 5; Lock nut 51; Bearing housing 6; The angular contact bearing under test is 7; Star wheel structure part 8; Assembly cavity 81; Card 82; Connecting chuck 9; Chuck body 91; Card slot 92; Drive lever 93; High-precision torque meter 10; Assembly hole 101. Detailed Implementation

[0018] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0019] This utility model provides a bearing drive torque quality inspection fixture, including a support assembly, a measuring assembly, and a fixing assembly, such as... Figure 1 , Figure 2As shown, the angular contact bearing 7 under test is assembled onto the support assembly via a fixing assembly. The support assembly provides a support and fixing carrier. The measuring assembly includes a connecting chuck 9 and a high-precision torque meter 10. The fixing assembly includes a support shaft 5 and a star wheel structure part 8. The star wheel structure part 8 is fitted onto the outside of the angular contact bearing 7. The angular contact bearing 7 is fitted onto the support shaft 5. The bottom of the support shaft 5 is detachably mounted on the support assembly. The bottom of the connecting chuck 9 is engaged with the star wheel structure part 8. The high-precision torque meter 10 is mounted on the top of the connecting chuck 9. By twisting the high-precision torque meter 10, the connecting chuck 9, the star wheel structure part 8, and the outer ring of the angular contact bearing 7 can be rotated together, thereby realizing the measurement of the torque of the angular contact bearing 7, and thus accurately determining the tightness of the bearing rotation.

[0020] It should be noted that the high-precision torque meter 10 is equipped with a display on its top, which can display the measured torque value in real time for easy observation. The high-precision torque meter 10 uses an existing torque meter and belongs to existing technology, so it will not be described in detail here.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the support assembly includes a worktable panel 1, a fixing plate 2, a tensioning sleeve 3, and a tensioning screw 4. The fixing plate 2 is detachably mounted on the worktable panel 1. The worktable panel 1 is provided with multiple fixing holes arranged in an array. When fixing the fixing plate 2, different fixing holes can be selected according to actual needs to achieve fixing on the worktable panel 1. Screws can be used for fixing.

[0022] Furthermore, the support shaft 5 is a hollow shaft, and the bottom of the support shaft 5 is fitted onto the tension sleeve 3. The tension sleeve 3 is detachably fixed to the fixing plate 2 by the tension screw 4, and the support shaft 5 is fixed by the circumferential outward expansion of the tension sleeve 3.

[0023] Furthermore, in specific operation, when the tensioning screw 4 is tightened, the tensioning sleeve 3 expands, thereby tensioning and fixing the support shaft 5. It should be noted that the tensioning sleeve 3 includes a connecting base 31 and a tensioning part 32, such as... Figure 3 As shown, the bottom of the tensioning part 32 is integrally connected to the middle of the connecting base 31. When the tensioning screw 4 fixes the tensioning sleeve 3, the axial pressure of the tensioning screw 4 on the tensioning part 32 causes the tensioning part 32 to bulge outward in a radial direction. The bulging part presses against the inner wall of the support shaft 5, thereby tensioning and fixing the support shaft 5. This utility model adopts a tensioning structure, which can quickly fix the workpiece being measured. The method of fixing with a tensioning sleeve is faster and more reliable, and at the same time, the posture of the workpiece being measured is uniform, and the operation is simple.

[0024] It should be noted that in practical applications, the tensioning sleeve 3 includes different sizes and models. By using tensioning sleeves 3 of different sizes, different models of hollow support shafts 5 can be fixed, which has good versatility. At the same time, the top surface of the connecting base 31 is a plane, and the lower end surface of the support shaft 5 is also a plane. The lower end surface of the support shaft 5 is supported on the plane of the top surface of the connecting base 31, so that the axis of the support shaft 5 is arranged vertically, which is conducive to improving measurement accuracy.

[0025] like Figure 6 , Figure 7 As shown, the fixing assembly also includes a bearing housing 6, which is fitted onto the upper part of the support shaft 5. Preferably, the bearing housing 6 is threaded onto the support shaft 5. An angular contact bearing 7 is fitted onto the support shaft 5, and the bottom of the inner ring of the angular contact bearing 7 is supported on the bearing housing 6. In practical applications, the length of the support shaft 5 is 100–150 mm, and the inner diameter of the inner ring of the angular contact bearing 7 is approximately 15–20 mm.

[0026] Furthermore, the fixing assembly also includes a locking nut 51, which is disposed on the top of the support shaft 5 to lock the angular contact bearing 7 onto the support shaft 5, with the bearing seat 6 at the bottom providing support.

[0027] like Figure 4 , Figure 6 , Figure 8 As shown, the star wheel structure component 8 serves as a flange for fixing the outer ring of the bearing. The bottom of the star wheel structure component 8 has an assembly cavity 81, which is adapted to fit the outer ring of the angular contact bearing 7. Preferably, the outer ring of the angular contact bearing 7 is interference-fitted into the assembly cavity 81. Simultaneously, the star wheel structure component 8 has multiple clamping platforms 82 arranged circumferentially. The connecting chuck 9 includes a chuck body 91 and multiple slots 92 arranged at the bottom of the chuck body 91. The connecting chuck 9 is engaged with the multiple clamping platforms 82 through the slots 92, thereby achieving a driving connection between the connecting chuck 9 and the star wheel structure component 8. When the connecting chuck 9 rotates, the engaging connection drives the star wheel structure component 8 to rotate synchronously. This utility model adopts a chuck-type connection method, which has better versatility. When measuring angular contact bearings 7 of different specifications, only the connecting chuck 9 needs to be replaced, making operation convenient and highly versatile.

[0028] like Figure 4 , Figure 5 As shown, a drive rod 93 is configured on the top of the connecting chuck 9, and a mounting hole 101 is configured on the bottom of the high-precision torque meter 10. The mounting hole 101 matches the drive rod 93. The mounting hole 101 is mounted on the drive rod 93 to connect the high-precision torque meter 10 with the connecting chuck 9. The cross-section of the drive rod 93 is a non-circular structure, which causes the mounting hole 101 and the drive rod 93 to interfere with each other when rotating, thus achieving a drive connection. For example, the cross-section of the drive rod 93 is a regular hexagon, or for example, the cross-section of the drive rod 93 is a square, etc.

[0029] The working principle of this utility model is as follows: First, the bottom of the support shaft 5 is fitted onto the outside of the tension sleeve 3. The tension screw 4 is then inserted into the top of the tension sleeve 3 through the hollow channel of the support shaft 5 using a tool, and the tension sleeve 3 is tightened to make the tension sleeve 3 expand outward in the circumference. This fixes the support shaft 5 to the outside of the tension sleeve 3. Since the top surface of the connecting base 31 is flat and the lower end surface of the support shaft 5 is also flat, the fixed support shaft 5 is vertically arranged.

[0030] Next, the bearing housing 6 is assembled onto the support shaft 5. The angular contact bearing 7 to be tested is mounted on the support shaft 5 with its bottom tightly against the top of the bearing housing 6. The top of the support shaft 5 is secured to the inner ring of the angular contact bearing 7 by the locking nut 51, and it abuts against the bearing housing 6 at the bottom. The star wheel structure part 8 is mounted on the outer ring of the angular contact bearing 7. The connecting chuck 9 is then engaged with multiple chuck tables 82 through the chuck groove 92, so that the connecting chuck 9 and the star wheel structure part 8 are connected in drive. Then, the high-precision torque meter 10 is assembled on the top of the connecting chuck 9.

[0031] Finally, by twisting the high-precision torque meter 10, the connecting chuck 9, the star wheel structure part 8, and the outer ring of the angular contact bearing 7 are driven to rotate together, so as to measure the torque accurately and quickly.

[0032] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A bearing drive torque quality inspection fixture, characterized in that, include: Support components; The measuring assembly includes a connecting chuck (9) and a high-precision torque meter (10), the high-precision torque meter (10) being disposed on top of the connecting chuck (9); The fixed assembly includes a support shaft (5) and a star wheel structure part (8). The lower part of the support shaft (5) is disposed on the support assembly. The angular contact bearing (7) to be measured is mounted on the upper part of the support shaft (5). The star wheel structure part (8) is mounted on the outside of the angular contact bearing (7). The bottom of the connecting chuck (9) is engaged with the star wheel structure part (8). The torque of the angular contact bearing (7) can be measured by twisting the high-precision torque meter (10).

2. The bearing drive torque quality inspection fixture according to claim 1, characterized in that, The support assembly includes a worktable panel (1), a fixing plate (2), a tensioning sleeve (3), and a tensioning screw (4). The fixing plate (2) is detachably mounted on the worktable panel (1). The support shaft (5) is a hollow shaft. The bottom of the support shaft (5) is fitted onto the tensioning sleeve (3), and the tensioning sleeve (3) is fixed to the fixing plate (2) by the tensioning screw (4). The support shaft (5) is fixed by the circumferential outward expansion of the tensioning sleeve (3).

3. The bearing drive torque quality inspection fixture according to claim 2, characterized in that, The tensioning sleeve (3) includes different sizes and models, which can meet the fixing of different models of hollow support shafts (5).

4. The bearing drive torque quality inspection fixture according to claim 2, characterized in that, The tensioning sleeve (3) includes a connecting base (31) and a tensioning part (32). The bottom of the tensioning part (32) is integrally connected to the middle of the connecting base (31). When the tensioning screw (4) fixes the tensioning sleeve (3), the axial pressure of the tensioning screw (4) on the tensioning part (32) causes the tensioning part (32) to bulge in the radial outward direction.

5. The bearing drive torque quality inspection fixture according to claim 1, characterized in that, The fixing assembly also includes a bearing housing (6), which is fitted onto the upper part of the support shaft (5), and the angular contact bearing (7) is fitted onto the support shaft (5) with the bottom of the bearing inner ring supported on the bearing housing (6).

6. The bearing drive torque quality inspection fixture according to claim 5, characterized in that, The fixing assembly also includes a locking nut (51) disposed on top of the support shaft (5) to lock the angular contact bearing (7) onto the support shaft (5).

7. The bearing drive torque quality inspection fixture according to claim 1, characterized in that, The star wheel structure component (8) is circumferentially equipped with multiple mounting platforms (82), and the bottom of the connecting chuck (9) is equipped with multiple slots (92). The connecting chuck (9) is engaged with the multiple mounting platforms (82) through the slots (92), thereby realizing the driving connection between the connecting chuck (9) and the star wheel structure component (8).

8. The bearing drive torque quality inspection fixture according to claim 1, characterized in that, The top of the connecting chuck (9) is provided with a drive rod (93), and the bottom of the high-precision torque meter (10) is provided with a mounting hole (101). The mounting hole (101) matches the drive rod (93), and the mounting hole (101) is mounted on the drive rod (93) to connect the high-precision torque meter (10) with the connecting chuck (9).

9. The bearing drive torque quality inspection fixture according to claim 8, characterized in that, The cross-section of the drive rod (93) is a non-circular structure, which causes phase interference between the assembly hole (101) and the drive rod (93) during rotation.

10. The bearing drive torque quality inspection fixture according to claim 1, characterized in that, The bottom of the star wheel structure part (8) has an assembly cavity (81) that is adapted to the outer ring of the angular contact bearing (7).

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