Bearing axial clearance detection tool

Abstract

The utility model discloses a bearing axial clearance detection tool, which comprises a detection frame and a sleeve detachably arranged on the detection frame, the sleeve is provided with a mounting hole for mounting an external bearing to be detected in a penetrating manner along the height direction of the sleeve, and a detection shaft matched with a shaft hole of the external bearing to be detected is movably arranged in the sleeve. The detection frame is provided with a driving structure used for driving the detection shaft to slide in the axis direction according to the lever principle and a detection piece used for being matched with the detection shaft to detect the displacement amount of the detection shaft, and the sleeve is provided with a limiting piece used for limiting an external to-be-detected bearing to prevent the external to-be-detected bearing from being separated from the mounting hole. The bearing axial clearance detection tool solves the problems that a traditional bearing axial clearance detection tool is inconvenient to operate and high in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing detection tooling, in particular to a bearing axial clearance detection tooling. Background Art

[0002] Clearance is one of the important indicators of bearings. Too much or too little clearance will directly affect the service life of bearings. At present, the bearing industry does not have a ready-made detection device for the detection of medical bearing clearance. The main reason is that the bearings are non-standard and loose, which brings great trouble to the detection. The traditional non-medical bearing clearance detection tooling is troublesome to disassemble and assemble, cumbersome to detect and high in cost, because it requires multiple drive motors or cylinders to drive the bearings and the shaft, which increases its cost. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a bearing axial clearance detection tool, which solves the problems of inconvenient operation and high cost of traditional bearing axial clearance detection tool.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a bearing axial clearance detection tool, including a detection frame and a sleeve detachably arranged on the detection frame, the sleeve having a mounting hole for mounting an external bearing to be detected along its height direction, a detection shaft for cooperating with the shaft hole of the external bearing to be detected being movably arranged in the sleeve, the detection frame is provided with a driving structure for driving the detection shaft to slide along its axial direction by the principle of a lever and a detection member for cooperating with the detection shaft to detect the displacement of the detection shaft, and the sleeve is provided with a limit member for limiting the external bearing to be detected to prevent the external bearing to be detected from slipping out of the mounting hole.

[0005] The advantages of adopting the above technical solution are as follows: after the operator matches the bearing with the detection shaft, the operator places the bearing into the mounting hole and limits the bearing to be detected through the limiter to prevent the bearing from slipping out of the mounting hole. After that, the operator drives the detection shaft to slide along its own axial direction through the driving structure using the lever principle, so that when the detection shaft shifts, the detection component can detect the displacement of the detection shaft. Because the detection shaft and the bearing are matched so that the detection shaft has a tendency to shift along its own axial direction, the force is transmitted to the inner ring of the bearing through the detection shaft. At this time, the inner ring of the bearing has a tendency to shift along its own axial direction due to the force. Affected by the axial clearance between the inner ring and the outer ring of the bearing, the displacement data detected by the detection component when the detection shaft is displaced and moves to the final position can be analyzed to obtain the axial clearance of the bearing; the entire detection process using the above technology is fast and efficient. At the same time, the driving structure driven by the lever principle is not a high-power automation equipment such as a motor or cylinder, thereby reducing cost expenditure. The setting of the above technology improves the efficiency of disassembly and assembly of the bearing to be tested, thereby improving the detection accuracy and detection efficiency; the principle conversion and analysis of the detection results in the above technology is a conversion and analysis method existing in the prior art, so its specific steps and formulas will not be described in detail.

[0006] The utility model is further arranged that: vertical plates are relatively arranged on the bottom wall of the detection frame, a rotating shaft is rotatably arranged between the two vertical plates, the driving structure includes a gravity block, a connecting shaft and a swing shaft, the outer peripheral wall of the starting end of the connecting shaft is connected to the outer peripheral wall of the rotating shaft, the end of the connecting shaft is connected to the gravity block, the starting end of the swing shaft is connected to the outer peripheral wall of the rotating shaft, a through hole is coaxially opened at the corresponding mounting hole position on the detection frame, a top shaft is extended in the direction of the through hole at the end of the swing shaft, the top shaft is movably arranged in the through hole and the starting end of the top shaft is abutting end for abutting against the bottom of the detection shaft, and the swing shaft and the connecting shaft are relatively inclined.

[0007] The benefits of adopting the above technical solution are: when the detection shaft needs to be driven, the operator presses down the gravity block so that the gravity block drives the connecting shaft to swing, and the swinging of the connecting shaft drives the rotating shaft to rotate so that the swing shaft swings, and when the swing shaft swings, the swing shaft drives the top shaft to move upward and applies force to the detection shaft, so that the detection shaft can be correctly displaced, thereby ensuring that the detection process proceeds smoothly; in the above technology, the gravity block is used to realize the swinging of the swing shaft and the connecting shaft according to the principle of leverage, and traditionally, a large number of motors or cylinders are set up to implement driving, while this technology does not use driving devices such as motors or cylinders, thereby reducing costs.

[0008] The utility model is further configured that: the gravity block is detachably connected to the swing shaft.

[0009] The benefit of adopting the above technical solution is that the gravity block and the swing shaft in the above technology are detachably connected to change the gravity blocks of different weights according to the force requirements of different detection shafts, that is, different gravity blocks are replaced to change the force applied by the top shaft to the detection shaft, so as to adapt to the detection requirements of bearings of different sizes, and then meet the detection and force requirements of different bearings.

[0010] The utility model is further provided that: the limiting member comprises a limiting column, the limiting column is penetrated by an opening for the detection shaft to pass through, the diameter of the opening is smaller than the diameter of the mounting hole, and the bottom wall of the limiting column is arranged to abut against the top wall of the sleeve.

[0011] The benefit of adopting the above technical solution is that: in the above technology, the pressure of the sleeve by the limit column is used to prevent the bearing from escaping from the sleeve through the mounting hole. At the same time, the opening diameter is smaller than the diameter of the mounting hole so that the bottom wall of the limit column contacts the side wall of the bearing outer ring, further limiting the bearing.

[0012] The utility model is further configured as follows: a C-shaped retaining spring is detachably provided on the detection shaft, and the C-shaped retaining spring is arranged in the mounting hole and is coaxially aligned with the limiting column.

[0013] The benefits of adopting the above technical solution are: in the above technology, the detachable connection between the C-type retaining ring and the detection shaft is used to support and support the bearing, and at the same time, the C-type retaining ring and the limit column cooperate to achieve the clamping and limiting of the outer ring of the bearing, so as to achieve stable placement of the bearing in the mounting hole, thereby improving the detection accuracy and detection efficiency; the C-type retaining ring in the above technology is an existing technology, so its structure and function will not be described in detail.

[0014] The utility model is further configured as follows: two columns are relatively arranged on the end face of the detection frame, a detection plate is detachably arranged between the two columns, a press-fit column is arranged at the bottom of the detection plate, the bottom wall of the press-fit column is abutted against the top wall of the limit column, the top wall of the press-fit column is detachably connected to the detection plate, a detection hole for the detection shaft to pass through is penetrated on the press-fit column, the detection component includes a displacement sensor arranged on the detection plate, and the output end of the displacement sensor is abutted against the top end face of the detection shaft.

[0015] The benefits of adopting the above technical solution are: the detection plate in the above technology can be detachably arranged for bearing installation, and the setting of the press-fit column is used to avoid the limit column shaking and causing failure of the bearing limit, and the setting of the displacement sensor can detect the displacement of the detection shaft, thereby achieving the function of detecting the axial clearance of the inner ring of the bearing.

[0016] The utility model is further provided with: adjustment holes for the pillars to pass through are opened at both ends of the detection plate, and adjustment bolts are threadedly connected on the outer walls of both ends of the detection plate, and the ends of the adjustment bolts are inserted into the adjustment holes and abutted and matched with the outer peripheral walls of the pillars.

[0017] The benefits of adopting the above technical solution are: in the above technology, the relative height between the detection plate and the end face of the detection frame is adjusted by adjusting the bolt, so as to ensure that when different bearings are tested, the detection plate can drive the press-fit column to be pressed down onto the limit column, so as to ensure the stable placement of the limit column during the testing process, thereby improving the limiting strength of the limit column for the bearing to be tested, and at the same time adapting to the limiting requirements when testing different bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the utility model;

[0019] Figure 2 It is a three-dimensional view of the driving structure in the utility model;

[0020] Figure 3 This is a simplified cross-sectional view of the utility model after removing the driving structure. DETAILED DESCRIPTION

[0021] The utility model provides a bearing axial clearance detection tool, including a detection frame 1 and a sleeve 2 detachably arranged on the detection frame 1, wherein the sleeve 2 is penetrated along its height direction with a mounting hole 21 for mounting an external shaft 22 to be detected, and a detection shaft 22 used to cooperate with the shaft hole of the external shaft 22 to be detected is movably arranged in the sleeve 2, and the detection frame 1 is provided with a driving structure used to drive the detection shaft 22 to slide along its axial direction by a lever principle and a detection member used to cooperate with the detection shaft 22 to detect the displacement of the detection shaft 22, and the sleeve 2 is provided with a device used to limit the external shaft 22 to be detected to prevent the external shaft 22 to be detected from falling out of the mounting hole 21 The limiter is a vertical plate 3 arranged on the bottom wall of the detection frame 1, and a rotating shaft 31 is rotatably arranged between the two vertical plates 3. The driving structure includes a gravity block 32, a connecting shaft 33 and a swing shaft 34. The outer peripheral wall of the starting end of the connecting shaft 33 is connected to the outer peripheral wall of the rotating shaft 31, and the end of the connecting shaft 33 is connected to the gravity block 32. The starting end of the swing shaft 34 is connected to the outer peripheral wall of the rotating shaft 31. A through hole 16 is coaxially opened at a position corresponding to the mounting hole 21 on the detection frame 1. The end of the swing shaft 34 extends a top shaft 35 in the direction of the through hole. The top shaft 35 is movably arranged in the through hole 16 and the starting end of the top shaft 35 is used to abut against the bottom of the detection shaft 22. The abutting end of the swing shaft 34 is relatively inclined with the connecting shaft 33, the gravity block 32 is detachably connected with the swing shaft 34, the limiting member includes a limiting column 4, the limiting column 4 is penetrated with an opening 41 for the detection shaft 22 to pass through, the diameter of the opening 41 is smaller than the diameter of the mounting hole 21, the bottom wall of the limiting column 4 is abutted with the top wall of the sleeve 2, the detection shaft 22 is detachably provided with a C-shaped retaining spring 23, the C-shaped retaining spring 23 is arranged in the mounting hole 21 and is coaxially aligned with the limiting column 4, the end face of the detection frame 1 is relatively provided with two columns 11, and a detection plate 12 is detachably provided between the two columns 11, A press-fit column 5 is provided at the bottom of the detection plate 12, and the bottom wall of the press-fit column 5 is abutted against the top wall of the limit column 4. The top wall of the press-fit column 5 is detachably connected to the detection plate 12. A detection hole 51 for the detection shaft 22 to pass through is penetrated on the press-fit column 5. The detection component includes a displacement sensor 13 arranged on the detection plate 12, and the output end of the displacement sensor 13 is abutted against the top end surface of the detection shaft 22. Adjustment holes for the column 11 to pass through are opened at both ends of the detection plate 12. Adjustment bolts 15 are threadedly connected on the outer walls of both ends of the detection plate 12. The end of the adjusting bolt 15 passes through the adjustment hole 1 and is abutted against the outer peripheral wall of the column 11.

[0022] The bearing to be tested described in the above technology is marked as 6 in the attached figure of the specification.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A bearing axial clearance detection tool, characterized in that: It includes a detection frame and a sleeve detachably arranged on the detection frame, wherein the sleeve is penetrated with a mounting hole for mounting an external bearing to be detected along its height direction, and a detection shaft for cooperating with the shaft hole of the external bearing to be detected is movably arranged in the sleeve, and the detection frame is provided with a driving structure for driving the detection shaft to slide along its axial direction by using a lever principle and a detection member for cooperating with the detection shaft to detect the displacement of the detection shaft, and the sleeve is provided with a limit member for limiting the external bearing to be detected to prevent the external bearing to be detected from slipping out of the mounting hole.

2. The bearing axial clearance detection tool according to claim 1, characterized in that: Vertical plates are arranged opposite to each other on the bottom wall of the detection frame, and a rotating shaft is rotatably arranged between the two vertical plates. The driving structure includes a gravity block, a connecting shaft and a swinging shaft. The outer peripheral wall of the starting end of the connecting shaft is connected to the outer peripheral wall of the rotating shaft, the end of the connecting shaft is connected to the gravity block, and the starting end of the swinging shaft is connected to the outer peripheral wall of the rotating shaft. A through hole is coaxially opened at the corresponding mounting hole position on the detection frame, and a top shaft extends toward the through hole at the end of the swinging shaft. The top shaft is movably arranged in the through hole and the starting end of the top shaft is an abutting end for abutting against the bottom of the detection shaft, and the swinging shaft and the connecting shaft are relatively inclined.

3. The bearing axial clearance detection tool according to claim 2 is characterized in that: The gravity block is detachably connected to the swing shaft.

4. The bearing axial clearance detection tool according to claim 1, characterized in that: The limiting member comprises a limiting column, the limiting column is penetrated by an opening for the detection shaft to pass through, the diameter of the opening is smaller than the diameter of the mounting hole, and the bottom wall of the limiting column is arranged to abut against the top wall of the sleeve.

5. The bearing axial clearance detection tool according to claim 4 is characterized in that: The detection shaft is detachably provided with a C-shaped retaining spring, which is arranged in the mounting hole and is coaxially aligned with the limiting column.

6. The bearing axial clearance detection tool according to claim 4, characterized in that: The end surface of the detection frame is provided with two columns opposite to each other, a detection plate is detachably provided between the two columns, a press-fit column is provided at the bottom of the detection plate, the bottom wall of the press-fit column is abutted against the top wall of the limit column, the top wall of the press-fit column is detachably connected to the detection plate, a detection hole for the detection shaft to pass through is penetrated through the press-fit column, the detection component includes a displacement sensor arranged on the detection plate, and the output end of the displacement sensor is abutted against the top end surface of the detection shaft.

7. The bearing axial clearance detection tool according to claim 6, characterized in that: Both ends of the detection plate are provided with adjustment holes for the columns to pass through, and the outer walls of both ends of the detection plate are threadedly connected with adjustment bolts, and the ends of the adjustment bolts pass through the adjustment holes and are abutted and matched with the outer peripheral walls of the columns.

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