Radial clearance detection device for deep groove ball bearing

Abstract

The utility model provides a deep groove ball bearing radial clearance detection device, which comprises a detection pen, a material channel, a positioning assembly and a detection assembly, the material channel can be used for guiding and sliding a bearing to be detected, the material channel comprises a detection station, the positioning assembly comprises a telescopic shaft and a deformation ejector rod, the telescopic shaft and the deformation ejector rod are respectively arranged on two axial sides of the detection station, and the detection assembly is arranged on the detection station. The front end of the telescopic shaft is provided with a blooming piece, the blooming piece can be driven by the telescopic shaft to penetrate into an inner hole of a bearing to be detected, and the deformation ejector rod can be inserted into the blooming piece and enables the blooming piece to expand in the radial direction to abut against an inner ring of the bearing to be detected. The pressurizing push block and the detection pen are respectively arranged below and above the detection station, and the pressurizing push block can be pushed by the cylinder to rise and tightly press the bearing to be detected. Aiming at the defects in the prior art, the utility model provides the radial clearance detection device for the deep groove ball bearing, which is suitable for high-frequency detection scenes, long in service life and good in stability.

Description

Technical Field

[0001] The utility model relates to the field of bearing detection, in particular to a deep groove ball bearing radial clearance detection device. Background Art

[0002] Deep groove ball bearings are a type of rolling bearing widely used in various types of mechanical equipment. Deep groove ball bearings usually include an outer ring, an inner ring, and several rollers. A raceway for rollers is formed between the outer ring and the inner ring. The radial clearance of the bearing affects the life, heat generation, vibration, and noise of the bearing. The detection device of the existing technology usually fixes the inner ring or the outer ring first, applies a measuring load that can obtain a stable measurement value on the unfixed ring, and applies the load in the diameter direction of the bearing for reciprocating measurement. For example, the X095C radial clearance measuring instrument designed based on the measurement principle is often used to measure the radial clearance of rolling bearings. Detection, which can make the bearing quickly enter the core shaft and the inner ring of the bearing quickly clamped by the structure of the anti-backlash hook combined with the grooved core shaft, and the outer ring of the bearing rises or falls by the up and down movement of the guide block and the cylinder on one side, and the radial clearance value of the tested bearing is indicated by the micrometer. This device is often used for offline random inspections and occasions with low frequency of use. The anti-backlash hook combined with the grooved core shaft structure can easily cause wear on the bottom of the core shaft during high-frequency testing. The contact area of ​​the core shaft is reduced during tensioning, resulting in a decrease in measurement accuracy, a high misjudgment rate of the automated production line, and repeated measurements leading to a decrease in production line efficiency, which in turn affects output. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a deep groove ball bearing radial clearance detection device that is suitable for high-frequency detection scenarios, has a long service life and good stability.

[0004] To achieve the above-mentioned purpose, the utility model provides a deep groove ball bearing radial clearance detection device, including a detection pen for abutting against the bearing to be tested to record the highest point data, and also including a material channel, a positioning assembly and a detection assembly, the material channel can provide a guide sliding for the bearing to be tested, the material channel includes a detection station, the positioning assembly includes a telescopic shaft and a deformable push rod, the telescopic shaft and the deformable push rod are respectively arranged at both sides of the axial direction of the detection station, and can both be telescoped toward the detection station, the front end of the telescopic shaft is provided with a flowering piece, the flowering piece can be driven by the telescopic shaft to penetrate into the inner hole of the bearing to be tested, the deformable push rod can be inserted into the flowering piece and cause it to expand radially until it is tightly against the inner ring of the bearing to be tested, the detection assembly includes a pressure push block, the pressure push block and the detection pen are respectively arranged below and above the detection station, and the pressure push block can be pushed up and pressed on the bearing to be tested by a cylinder.

[0005] The advantages of adopting the above technical solution are: by setting up a material channel, a positioning component and a detection component, the bearing to be tested is allowed to slide through the material channel to the detection station, and then the telescopic shaft and the deformable push rod in the positioning component are extended toward each other, and the telescopic shaft first inserts the flower piece at its front end into the inner hole of the bearing to be tested, and then the deformable push rod is inserted into the flower piece. The flower piece is pushed by the deformable push rod to expand and press against the inner ring of the bearing to be tested, thereby forming the positioning of the bearing to be tested. Finally, the pressure push block located below the bearing to be tested in the detection component is pressed on the bearing to be tested, and the detection pen above is used to record the high point data of the bearing to be tested. During the detection process, the flower piece directly penetrates into the inner hole of the bearing to be tested without contact to reduce wear. In the subsequent process, due to the penetration, expansion and contact of the deformable push rod, its deformation amplitude can change with the degree of extrusion of the deformable push rod. Even if the flower piece is worn, it is compensated by the increased penetration depth of the deformable push rod, which greatly extends the service life of the device and is more suitable for high-frequency detection scenarios.

[0006] The present invention can be further configured as follows: the flowering member includes a plurality of paddles, the plurality of paddles are arranged in a circular circumferential direction, and the paddles are elastically swingingly arranged, and the deformed top rod is configured to be tapered toward one end of the flowering member.

[0007] Through further settings, a number of elastically swinging paddles are provided on the flowering piece, and the paddles are arranged in a circular circumferential pattern, and the deformable push rod is set to be a cone that gradually becomes smaller toward one end of the flowering piece. The flowering piece is first inserted into the inner hole of the bearing to be tested, and then the deformable push rod is inserted into the middle of the several paddles. The tapered end is used to adjust the degree of elastic swing of the paddles by the penetration depth, so that the expansion amplitude of the flowering piece changes with the penetration depth of the deformable push rod, ensuring that even if the paddle is worn, the positioning effect can be guaranteed by increasing the expansion amplitude.

[0008] The utility model can be further configured as follows: an abutting end surface is provided on the telescopic shaft, a pressure rod is provided on the outer sliding sleeve of the deformable push rod, and the abutting end surface and the pressure rod can abut on both sides of the axial direction of the bearing to be tested.

[0009] Through further settings, abutment end faces and pressure rods are respectively provided on the flowering piece and the deforming push rod. The abutment end faces and the pressure rod abut on both sides of the axial direction of the bearing to be tested, which can first form an axial abutment limit for the bearing to be tested, facilitating the subsequent coordination of the flowering piece and the deforming push rod.

[0010] The present invention can be further configured as follows: a mounting plate and a first cylinder are connected to the other end of the deformable push rod; the mounting plate and the pressure rod are configured to move synchronously under the action of the second cylinder; and the first cylinder is configured to drive the deformable push rod to slide relative to the pressure rod.

[0011] Through further settings, a mounting plate and a first cylinder are set at the other end of the deformable push rod, and the mounting plate and the pressure rod are made to move synchronously under the action of the second cylinder. When the second cylinder drives the pressure rod to abut against one side of the bearing to be tested, the deformable push rod can be driven toward the bearing to be tested through the mounting plate at the same time. When the flowering piece on the telescopic shaft is in place, the deformable push rod is pushed forward relative to the pressure rod by the first cylinder and cooperates with the flowering piece.

[0012] The utility model can be further configured as follows: a return spring is provided between the deformable push rod and the pressure rod.

[0013] By further setting up a reset spring between the deforming push rod and the pressure rod, after the first cylinder stops working, the deforming push rod can be driven to retract by the reset elasticity, which facilitates the separation of the bearing to be tested after the test is completed.

[0014] The utility model can be further configured as follows: the pressurizing push block includes a V-shaped groove located at the upper end thereof.

[0015] Through further configuration, by setting a V-shaped groove on the upper end of the pressure push block, a two-point fit can be formed with the bearing to be tested through the V-shaped groove, and under the action of gravity, the bearing to be tested can always slide to the position where the two points abut, achieving a guiding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of an embodiment of the present utility model;

[0017] Figure 2 A top view of an embodiment of the present utility model;

[0018] Figure 3 For the embodiment of the utility model Figure 2 Cross-sectional view at CC;

[0019] Figure 4 This is a schematic diagram of the cooperation between the bearing to be tested, the deformable ejector rod, the flower-shaped member, the push block and the detection pen in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the matching state of the deformable ejector rod and the pressure rod in the embodiment of the present utility model;

[0021] Among them: material channel 1; detection station 11; positioning assembly 2; telescopic shaft 21; deformable ejector rod 22; flowering piece 23; pick 231; abutting end face 24; pressure rod 25; mounting plate 26; first cylinder 27; second cylinder 28; detection assembly 3; detection pen 31; pressure push block 32; V-shaped groove 321; bearing to be tested 4; return spring 5. DETAILED DESCRIPTION

[0022] The utility model is a deep groove ball bearing radial clearance detection device for example Figure 1-5 As shown: it includes a material channel 1, a positioning component 2, a detection component 3 and a detection pen 31 for abutting against the bearing to be tested 4 to record the data of the highest point. The material channel 1 can provide a guide for the sliding of the bearing to be tested 4. The material channel 1 includes a detection station 11. The positioning component 2 includes a telescopic shaft 21 and a deformable push rod 22. The telescopic shaft 21 and the deformable push rod 22 are respectively arranged on both sides of the axial direction of the detection station 11 and can both be retracted toward the detection station 11. The front end of the telescopic shaft 21 is provided with a flowering piece 23. The flowering piece 23 can be driven by the telescopic shaft 21 to penetrate into the inner hole of the bearing to be tested 4. The deformable push rod 22 can be inserted into the flowering piece 23 and cause it to expand radially until it is tightly pressed against the inner ring of the bearing to be tested 4. The detection component 3 includes a pressurizing push block 32. The pressurizing push block 32 and the detection pen 31 are respectively arranged below and above the detection station 11. The pressurizing push block 32 can be pushed up and pressed against the bearing to be tested 4 by a cylinder.

[0023] The flower-opening member 23 includes a plurality of paddles 231 , which are arranged in a circular circumferential direction and are elastically swingable. The deformable top rod 22 is arranged in a tapered shape with one end facing the flower-opening member 23 .

[0024] The telescopic shaft 21 is provided with an abutting end surface 24 , and the outer sliding sleeve of the deformable push rod 22 is provided with a pressure rod 25 . The abutting end surface 24 and the pressure rod 25 can abut on both sides of the axial direction of the bearing 4 to be tested.

[0025] The other end of the deformable push rod 22 is connected to a mounting plate 26 and a first cylinder 27. The mounting plate 26 and the pressure rod 25 are set to move synchronously under the action of the second cylinder 28. The first cylinder 27 is used to drive the deformable push rod 22 to slide relative to the pressure rod 25.

[0026] A return spring 5 is provided between the deformable push rod 22 and the pressure rod 25 .

[0027] The pressurizing push block 32 includes a V-shaped groove 321 at its upper end.

[0028] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A deep groove ball bearing radial clearance detection device, comprising a detection pen for contacting a bearing to be tested to record the highest point data, characterized in that: It includes a material channel, a positioning component and a detection component. The material channel can provide a guide for the sliding of the bearing to be tested. The material channel includes a detection station. The positioning component includes a telescopic shaft and a deformable push rod. The telescopic shaft and the deformable push rod are respectively arranged on both sides of the axial direction of the detection station and can be extended toward the detection station. The front end of the telescopic shaft is provided with a flowering piece. The flowering piece can be driven by the telescopic shaft to pass through the inner hole of the bearing to be tested. The deformable push rod can be inserted into the flowering piece and cause it to expand radially until it is tightly pressed against the inner ring of the bearing to be tested. The detection component includes a pressure push block. The pressure push block and the detection pen are respectively arranged below and above the detection station. The pressure push block can be pushed up by a cylinder and pressed tightly on the bearing to be tested.

2. The deep groove ball bearing radial clearance detection device according to claim 1, characterized in that: The flowering piece includes a plurality of paddles, which are arranged in a circular circumferential direction and are elastically swingable. The deformed top rod is arranged in a gradually smaller cone shape toward one end of the flowering piece.

3. The deep groove ball bearing radial clearance detection device according to claim 2, characterized in that: An abutting end surface is provided on the telescopic shaft, and a pressure rod is provided on the outer sliding sleeve of the deformable push rod. The abutting end surface and the pressure rod can abut on both sides of the axial direction of the bearing to be tested.

4. The deep groove ball bearing radial clearance detection device according to claim 3, characterized in that: The other end of the deformable push rod is connected to a mounting plate and a first cylinder. The mounting plate and the pressure rod are set to move synchronously under the action of the second cylinder. The first cylinder is used to drive the deformable push rod to slide relative to the pressure rod.

5. The deep groove ball bearing radial clearance detection device according to claim 3 or 4, characterized in that: A return spring is provided between the deformable push rod and the pressure rod.

6. The deep groove ball bearing radial clearance detection device according to claim 1, characterized in that: The pressurizing push block includes a V-shaped groove at its upper end.

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