Tool for testing stress intensity of deep groove ball bearing

Abstract

The utility model discloses a deep groove ball bearing stress intensity testing tool which comprises a bottom plate, a motor is arranged at the middle position of the top of the bottom plate, a rotating disc is arranged at the output end of the motor, a limiting assembly is arranged at the middle position of the top of the rotating disc, and a U-shaped mounting plate is mounted at the top of the bottom plate. And a detection mechanism is mounted in the middle of the top of the U-shaped mounting plate. Through the structural design of the rotary table and the components above the rotary table and the cooperation of the extrusion plate, the electric push rod, the motor and the detection mechanism, the hardness and the number of rotation turns of the deep groove ball bearing can be detected at the same time, and during detection, an operator only needs to place the bearing outside the rotary table and the components above the rotary table for limiting; and operators do not need to perform back-and-forth disassembly and assembly detection in the later period, so that the detection steps of the operators in the later period are effectively reduced, and the practicability, flexibility and convenience of the device in the later period are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deep groove ball bearing devices, in particular to a deep groove ball bearing stress strength testing tool. Background Art

[0002] The bearing raceway is usually subjected to pulsating contact stress cycles during the rolling process of the rolling elements, which generates large concentrated stresses at material defect locations such as pores and inclusions. Under the action of cyclic stress, cracks initiate and propagate on the raceway subsurface. Therefore, when inspecting deep groove ball bearings, it is necessary to test the hardness of their external components. At the same time, it is necessary to test how many revolutions the deep groove ball bearing will take to fail when it rotates at high speed. Therefore, it is necessary to design a deep groove ball bearing stress strength test fixture.

[0003] Patent application number "202420197429.3" describes "a deep groove ball bearing stress strength testing tool, comprising a workbench, a mounting plate fixedly provided at the upper end of the workbench, a rotating seat rotatably provided inside the mounting plate, a rotating column fixedly connected to the upper end of the rotating seat, two connecting plates fixedly provided inside the mounting plate, a mounting plate fixedly provided at the upper end of the workbench, a hydraulic cylinder provided on one side of the mounting plate, a push rod fixedly connected to the protruding end of the hydraulic cylinder, a support plate fixedly provided at the upper end of the workbench, and a fixed block fixedly provided on the side of the support plate close to the hydraulic cylinder. In the utility model, the hydraulic cylinder drives the push rod to directly test the maximum pressure that the deep groove ball bearing can withstand, and at the same time, the bearing is fixed to the upper end of the rotating seat inside the mounting plate, so that the maximum centrifugal force that the bearing can withstand can be directly detected."

[0004] However, the applicant believes that the device is relatively cumbersome to use, and the hardness and high-speed rotation detection work of the deep groove ball bearing are mostly designed and tested separately. In the later stage, the hardness needs to be tested first, and then the number of high-speed rotations needs to be tested. This operation method increases the operator's later work steps, reduces the convenience of his work, and thus affects the efficiency of later detection. In addition, the mounting plate and the above structural design of the above device design limit the detection work of deep groove ball bearings of different models, so that the above device can only realize the detection of a single deep groove ball bearing, reducing the scope of application of later detection. Utility Model Content

[0005] The purpose of the utility model is to provide a deep groove ball bearing stress strength testing tool, which solves the problem that the above-mentioned device is inconvenient to simultaneously detect the hardness and number of rotations of the deep groove ball bearing, and can also increase the later detection range of the device, facilitating the detection of different deep groove ball bearings.

[0006] To achieve the above-mentioned purpose, a deep groove ball bearing stress strength testing tool is provided, comprising a base plate, a motor is provided at the middle position of the top of the base plate, a turntable is provided at the output end of the motor, a limit assembly is provided at the middle position of the top of the turntable, a U-shaped mounting plate is installed on the top of the base plate, a detection mechanism is installed at the middle position of the top of the U-shaped mounting plate, electric push rods are penetrated through the top of both sides of the U-shaped mounting plate, and the output ends of the two groups of electric push rods close to each other are provided with extrusion plates, and the two groups of extrusion plates cooperate with each other.

[0007] According to the deep groove ball bearing stress strength testing tool, the limiting assembly includes a screw, an internal threaded sleeve, a sleeve, a sleeve, a limiting rod, a spring and a fixed rod. The screw is rotatably installed at the middle position of the top of the turntable, and the top threaded sleeve on the outside of the turntable is provided with an internal threaded sleeve that matches it. There are two groups of fixed rods, and the two groups of fixed rods are installed at the middle positions on both sides of the top of the turntable. The tops of the two groups of fixed rods that are close to each other are provided with sleeves, and the sides of the two groups of sleeves that are close to each other are provided with sleeves. The sides of the two groups of sleeves that are close to each other are provided with springs connected to the sleeves, and the sides of the two groups of sleeves that are close to each other are provided with limiting rods that match the internal threaded sleeves.

[0008] According to the deep groove ball bearing stress strength testing tool, the top of the outer side of the internal threaded sleeve and the bottom of the side close to the two sets of limit rods are both provided with guiding inclined surfaces, and the two sets of guiding inclined surfaces match each other.

[0009] According to the deep groove ball bearing stress strength testing tool, the tops of the two groups of fixing rods close to each other are both arranged in a limiting slide groove, and the interiors of the two groups of limiting slide grooves are both slidably provided with limiting slide rods connected to the bottoms on both sides of the internal threaded sleeve.

[0010] According to the deep groove ball bearing stress strength testing tool, an annular slide groove is provided on the outer side of the turntable, and fixed slide rods connected to the bottom plate are slidably provided on both sides of the annular slide groove.

[0011] According to the deep groove ball bearing stress strength testing tool, the bottom of the outer side of the screw is evenly provided with a toggle block, and the outside of the toggle block is evenly provided with anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: through the structural design of the turntable and the components above it, and the cooperation of the extrusion plate, the electric push rod, the motor and the detection mechanism, the hardness and the number of rotations of the deep groove ball bearing can be detected at the same time. During the detection, the operator only needs to place the bearing on the outside of the turntable and the components above it to limit the position. In the later stage, the operator does not need to disassemble and install the bearing back and forth for detection, which effectively reduces the number of detection steps for the operator in the later stage and increases the practicality, flexibility and convenience of the later use of the device.

[0013] At the same time, through the mutual cooperation of the screw, internal threaded sleeve, sleeve plate, sleeve, limit rod and spring, it is convenient to limit the different types of deep groove ball bearings, so that the device can realize the detection of different types of bearings in the later stage, thereby increasing the later detection range of the device, and further improving the practicality and flexibility of the use of the device.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a three-dimensional structural diagram of a deep groove ball bearing stress strength testing tool of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of a tool base plate for testing stress strength of deep groove ball bearings according to the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of a turntable for a deep groove ball bearing stress strength test tool of the present invention;

[0019] Figure 4 This is a main sectional view of a deep groove ball bearing stress strength testing tool of the utility model;

[0020] Figure 5 This is a main sectional view of a turntable of a deep groove ball bearing stress strength test fixture of the utility model.

[0021] In the figure: 1. Base plate; 2. Extrusion plate; 3. Detection mechanism; 4. U-shaped mounting plate; 5. Electric push rod; 6. Turntable; 7. Motor; 8. Limit rod; 9. Spring; 10. Fixing rod; 11. Screw; 12. Internally threaded sleeve; 13. Sleeve plate; 14. Sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The embodiment of the utility model provides a technical solution: a deep groove ball bearing stress strength testing tool, comprising a base plate 1, a motor 7 is provided at the middle position of the top of the base plate 1, a turntable 6 is provided at the output end of the motor 7, a limit assembly is provided at the middle position of the top of the turntable 6, a U-shaped mounting plate 4 is installed on the top of the base plate 1, a detection mechanism 3 is installed at the middle position of the top of the U-shaped mounting plate 4, electric push rods 5 are penetrated at the top of both sides of the U-shaped mounting plate 4, and the output ends of the two groups of electric push rods 5 close to one side are provided with extrusion plates 2, and the two groups of extrusion plates 2 cooperate with each other, which solves the problem that the above-mentioned device is inconvenient to simultaneously realize the detection of the hardness and number of rotations of the deep groove ball bearing, and can also increase the later detection range of the device, which is convenient for the detection of different deep groove ball bearings.

[0024] The limiting assembly includes a screw 11, an internally threaded sleeve 12, a sleeve 13, a sleeve 14, a limiting rod 8, a spring 9 and a fixed rod 10. The screw 11 is rotatably installed at the middle position of the top of the turntable 6. The top thread sleeve of the outer side of the turntable 6 is provided with an internally threaded sleeve 12 that matches it. There are two groups of fixed rods 10. The two groups of fixed rods 10 are installed at the middle position on both sides of the top of the turntable 6. The top of the two groups of fixed rods 10 close to each other is provided with a sleeve 13. The side close to the outside of the two groups of sleeves 13 is provided with a sleeve 14. The side close to the inside of the two groups of sleeves 14 is provided with a spring 9 connected to the sleeve 13. The two sets of sleeves 14 are close to each other on one side and are provided with a limit rod 8 that cooperates with the internal threaded sleeve 12. By rotating the screw 11 and engaging the thread with the internal threaded sleeve 12, the internal threaded sleeve 12 can be pushed upward on the outside when the screw 11 rotates, and then the expansion of the limit rod 8 is achieved through the guide inclined surface, so that the limit rod 8 can drive the sleeve 14 to move outside the sleeve plate 13 to achieve compression of the spring 9. Later, when the internal threaded sleeve 12 is moved downward by rotating the screw 11 in the opposite direction, the limit rod 8 can be driven to recover by the elastic restoring force of the spring 9, which is convenient for the subsequent detection of the limit operation of the deep groove ball bearing.

[0025] The top of the outer side of the internal threaded sleeve 12 and the bottom of the side close to the two sets of limit rods 8 are both provided with guiding inclined surfaces, and the two sets of guiding inclined surfaces cooperate with each other. The design of the guiding inclined surfaces can realize the pushing and expansion of the limit rod 8 when the internal threaded sleeve 12 moves up. The top of the side close to the two sets of fixed rods 10 are both provided in the limiting slide groove, and the inside of the two sets of limiting slide grooves are both slidably provided with limiting slide rods connected to the bottom of both sides of the internal threaded sleeve 12. Through the cooperation of the limiting slide groove and the limiting slide rod, the internal threaded sleeve 12 can be limited, so that the internal threaded sleeve 12 can be To achieve up and down movement, it is impossible to rotate with the screw 11. An annular groove is provided on the outside of the turntable 6, and fixed slide rods connected to the bottom plate 1 are slidably provided on both sides of the annular groove. The design of the annular groove and the fixed slide rod can improve the stability of the later rotation installation of the turntable 6. The bottom of the outer side of the screw 11 is evenly provided with a toggle block, and the outside of the toggle block is evenly provided with anti-slip grooves. The design of the toggle block can facilitate the later operator to realize the rotation of the screw 11, and the design of the anti-slip groove can improve the friction and increase the stability of the later rotation.

[0026] Working principle: When in use, the device can be first moved to the designated location and powered on, and then the inner ring of the deep groove ball bearing to be tested can be placed on the outside of the two sets of limit rods 8, and then the screw 11 can be rotated inside the internal threaded sleeve 12 to push the internal threaded sleeve 12 to move outside it, and then the guide bevel on the top of the external side of the internal threaded sleeve 12 can be matched with the guide bevel on the bottom of the side close to the two sets of limit rods 8, and the two sets of limit rods 8 can be pushed to drive the sleeve 14 to move outside the sleeve plate 13 to achieve compression of the spring 9, and then the expansion movement of the limit rod 8 can achieve the limiting work of the deep groove ball bearing, and the structural design of this component can achieve the limiting work of deep groove ball bearings of different models, so that the device can realize the detection work of deep groove ball bearings of different models in the later stage;

[0027] When the deep groove ball bearing is limited, the electric push rod 5 can drive the two groups of extrusion plates 2 to resist the outside of the bearing to realize the detection of the bearing hardness, and then the changes in the bearing can be detected and recorded through the working requirements of the detection mechanism 3 itself. After the Indian detection is completed, the starting motor 7 can drive the turntable 6 and the above components to rotate, and then the outer ring of the bearing can be limited by the resistance of the extrusion plate 2, and then the inner ring can be limited by the limiting rod 8, and the inner ring of the bearing can be driven to rotate at high speed through the turntable 6 and the above components, and then the number of rotations can be monitored and recorded through the working requirements of the detection mechanism 3 itself, so that the simultaneous detection of the bearing hardness and number of circles can be realized, thereby increasing the practicality and flexibility of the device in the later use.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A deep groove ball bearing stress strength test fixture, comprising a base plate (1), characterized in that: A motor (7) is provided at the middle position of the top of the base plate (1), a turntable (6) is provided at the output end of the motor (7), a limit assembly is provided at the middle position of the top of the turntable (6), a U-shaped mounting plate (4) is installed at the top of the base plate (1), a detection mechanism (3) is installed at the middle position of the top of the U-shaped mounting plate (4), electric push rods (5) are provided through the tops of both sides of the inside of the U-shaped mounting plate (4), and an extrusion plate (2) is provided at the output end of the two groups of electric push rods (5) close to each other, and the two groups of extrusion plates (2) are matched with each other.

2. A deep groove ball bearing stress strength testing tool as claimed in claim 1, characterized in that: The limiting assembly comprises a screw (11), an internally threaded sleeve (12), a sleeve (13), a sleeve (14), a limiting rod (8), a spring (9) and a fixing rod (10), wherein the screw (11) is rotatably installed at the middle position of the top of the turntable (6), the top thread sleeve of the outer side of the turntable (6) is provided with an internally threaded sleeve (12) matched therewith, and the fixing rod (10) is provided with two groups, and the two groups of fixing rods (10) are installed at the middle positions on both sides of the top of the turntable (6), the tops of the two groups of fixing rods (10) close to each other are provided with a sleeve (13), the outer sides of the two groups of sleeves (13) close to each other are provided with a sleeve (14), the inner sides of the two groups of sleeves (14) close to each other are provided with a spring (9) connected to the sleeve (13), and the inner sides of the two groups of sleeves (14) close to each other are provided with a limiting rod (8) matched with the internally threaded sleeve (12).

3. A deep groove ball bearing stress strength testing tool as claimed in claim 2, characterized in that: The top of the outer side of the internal threaded sleeve (12) and the bottom of the side close to the two sets of limiting rods (8) are both provided with guiding inclined surfaces, and the two sets of guiding inclined surfaces match each other.

4. A deep groove ball bearing stress strength testing tool as claimed in claim 2, characterized in that: The tops of the two sets of fixing rods (10) on the adjacent sides are both arranged in limiting sliding grooves, and limiting sliding rods connected to the bottoms of both sides of the internal threaded sleeve (12) are slidably arranged inside the two sets of limiting sliding grooves.

5. The deep groove ball bearing stress strength testing tool according to claim 1, characterized in that: An annular sliding groove is provided on the outer side of the turntable (6), and fixed sliding rods connected to the bottom plate (1) are slidably provided on both sides of the annular sliding groove.

6. A deep groove ball bearing stress strength testing tool as claimed in claim 2, characterized in that: The bottom of the outer side of the screw rod (11) is evenly provided with a toggle block, and the outside of the toggle block is evenly provided with anti-slip grooves.

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