CN219890626U - Positioning loading tool for testing moment of ball bearing - Google Patents
Positioning loading tool for testing moment of ball bearing Download PDFInfo
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- CN219890626U CN219890626U CN202320934701.7U CN202320934701U CN219890626U CN 219890626 U CN219890626 U CN 219890626U CN 202320934701 U CN202320934701 U CN 202320934701U CN 219890626 U CN219890626 U CN 219890626U
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
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- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of application tests of starting torque and rotating torque of bearings, and particularly relates to a positioning loading tool for testing the torque of a ball bearing, which comprises an inner ring clamp and an outer ring clamp, wherein the inner ring clamp comprises an inner ring upper clamp and an inner ring lower clamp which are clamped on the upper side and the lower side of the inner ring, the inner ring lower clamp is provided with a lower positioning conical surface, the center of the lower positioning conical surface is provided with a cavity structure with internal threads, the inner ring upper clamp comprises a gland and a connecting screw rod arranged on the gland, the connecting screw rod is in matched connection with the internal threads of the cavity structure, and a rotating shaft interface is arranged on the gland; the outer ring clamp comprises a positioning bracket for installing and positioning the outer ring of the bearing, a plurality of positioning screw holes are formed in the positioning bracket, half-thread bolts are optionally assembled in the positioning screw holes, and the half-thread bolts radially position the outer ring of the bearing. The utility model realizes the complete positioning of the bearing in the process of testing the moment of the bearing with different outer diameters, inner diameters and widths within a certain size range.
Description
Technical Field
The utility model belongs to the technical field of application tests of starting torque and rotating torque of bearings, and particularly relates to a positioning loading tool for testing the torque of a ball bearing.
Background
The rolling bearing is widely applied to various fields of national economy, is an important mechanical matching component, and the starting moment and the rotating moment are very important service performances of the bearing. The starting moment and the rotating moment of the bearing are influenced by the bearing structure, the temperature, the lubrication condition and the like in many aspects, and in the process of testing the starting moment and the rotating moment of the bearing, many factors such as the installation, the positioning, the loading, the temperature and the like of the bearing must be considered. In the existing bearing starting moment and rotating moment testing process, the positioning problem of the bearing is considered. For the detection of the moment of the ball bearing, the detection structure in the prior art is difficult to meet the requirements of positioning and loading of the bearing, and a plurality of factors such as the inner diameter, the outer diameter and the width of different bearings, the axial radial positioning of the bearing and the like are considered, so that a positioning and loading tool for testing the moment of the ball bearing is needed.
Disclosure of Invention
According to the prior art, the utility model aims to provide a positioning loading tool for testing the moment of a ball bearing and a using method thereof, which are based on the problems of positioning and loading of the bearing to be considered in the process of testing the starting moment and the rotating moment of the bearing. The axial positioning and the radial positioning can be carried out on the bearing in the installation process before the test, concentricity of the bearing and the rotating shaft is ensured, and meanwhile, the universality of the device on bearings with different sizes is realized from the energy-saving and environment-friendly angles.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the positioning loading tool for testing the moment of the ball bearing comprises an inner ring clamp and an outer ring clamp, wherein the inner ring clamp comprises an inner ring upper clamp and an inner ring lower clamp which are clamped on the upper side and the lower side of the inner ring, the inner ring lower clamp is provided with a lower positioning conical surface matched with an inner hole of the inner ring of the bearing, the center of the lower positioning conical surface is provided with a cavity structure with internal threads, the inner ring upper clamp comprises a gland matched with the end face of the inner ring of the bearing and a connecting screw arranged on the gland, the connecting screw is in matched connection with the internal threads of the cavity structure of the inner ring lower clamp, and a rotating shaft interface for connecting a rotating shaft is arranged on the gland; the outer ring clamp comprises a positioning bracket for installing and positioning the outer ring of the bearing, a plurality of positioning screw holes are formed in the positioning bracket, half-thread bolts are optionally arranged in the positioning screw holes, and the half-thread bolts radially position the outer ring of the bearing.
Further, the positioning loading tool further comprises a mounting base, and a mounting positioning pin for positioning the inner ring clamp or the outer ring clamp is arranged on the mounting base.
Further, the outer periphery of the lower inner ring clamp is formed with a plane seat matched with the installation base in a extending mode, an installation positioning hole matched with an installation positioning pin on the installation base is formed in the plane seat, and the lower inner ring clamp is assembled on the installation base through the installation positioning hole.
Further, the bottom surface of the positioning bracket is provided with a mounting positioning hole matched with a mounting positioning pin on the mounting base, and the positioning bracket is assembled on the mounting base through the mounting positioning hole. And a central threaded hole matched with a connecting screw rod of the clamp on the inner ring is also formed in the bottom surface of the positioning support.
Further, the installation base comprises an inner ring installation base and an outer ring installation base, and the inner ring installation base and the outer ring installation base are independently used.
Further, an upper positioning conical surface matched with an inner hole of the bearing inner ring is arranged on one side end surface of the gland, the connecting screw is connected to the upper positioning conical surface, and a handle is arranged on one side end surface of the gland, which is far away from the upper positioning conical surface.
Further, the locating support comprises a bottom support and three groups of threaded hole supports which are longitudinally arranged and are arranged on the bottom support, the three groups of threaded hole supports are distributed at equal intervals along the circumferential direction, a plurality of locating screw holes are longitudinally arranged on each threaded hole support at equal intervals, and the locating screw holes on the three groups of threaded hole supports are arranged in one-to-one correspondence.
Further, nine positioning screw holes are longitudinally and equidistantly arranged on each screw hole bracket.
Further, the bottom of the positioning bracket is connected with the dynamometer through a steel wire, and the dynamometer and the bottom of the positioning bracket are on the same horizontal plane.
The method for using the positioning loading tool for testing the moment of the ball bearing comprises the steps of mounting a lower inner ring clamp on a mounting positioning pin of an inner ring mounting base, placing a bearing to be tested on a lower positioning conical surface of the lower inner ring clamp, connecting a connecting screw rod of an upper inner ring clamp through an inner hole of the bearing to be tested to be connected with an inner thread of a cavity structure of the lower inner ring clamp, and taking out an assembly formed by the inner ring clamp, the bearing to be tested and the lower inner ring clamp after screwing; connecting a positioning bracket to a mounting positioning pin of an outer ring mounting base, loading an assembly formed by an inner ring upper clamp, a bearing to be tested and an inner ring lower clamp into the positioning bracket, connecting and positioning the assembly through a mounting positioning hole of the inner ring lower clamp and a mounting positioning pin of the outer ring mounting base, connecting a connecting screw rod of the inner ring lower clamp with a central threaded hole of the positioning bracket, selecting a positioning screw hole in the height direction of the outer ring of the bearing, mounting three half-threaded bolts into the positioning screw hole and screwing the positioning screw rod to the outer diameter surface of the bearing to ensure the radial positioning of the bearing, taking out the outer ring mounting base, mounting the inner ring upper clamp on a rotating shaft through a rotating shaft interface, connecting a bottom bracket of the positioning bracket with a dynamometer through a steel wire, ensuring the dynamometer to be fixed and on the same horizontal plane with the bottom bracket, and starting the rotating shaft to measure the rotating moment and the starting moment of the bearing to be tested through dynamometer indication.
Further, the product of the dynamometer indication and the radius of the bottom bracket is the rotation moment of the bearing, and the rotation moment when the bearing is started is the starting moment.
The beneficial effects of the utility model are as follows: the tool provided by the utility model realizes complete positioning of the bearing in the process of testing the starting moment and the rotating moment of the bearing with different outer diameters, inner diameters and width sizes within a certain size range, and the universality of the tool reduces the time and the waste of materials generated by independently designing the tool due to different sizes of the bearing, so that the testing cost is saved, and the testing period is shortened. The tool can be used by a special test platform, and can also be used on general equipment such as a four-ball tester by changing an interface.
Drawings
FIG. 1 is a schematic view of a clamp structure on an inner ring;
FIG. 2 is a schematic view of the structure of the lower inner ring clamp;
FIG. 3 is a schematic view of an inner race mounting base;
FIG. 4 is a schematic view of a positioning bracket;
FIG. 5 is a schematic view of the outer ring mounting base;
FIG. 6 is a schematic view of a half-thread bolt construction;
FIG. 7 is a schematic view of the structure of the ball bearing to be tested installed and positioned by the inner ring clamp;
FIG. 8 is a schematic view of the structure of an outer race fixture for mounting and positioning a ball bearing to be tested;
FIG. 9 is a schematic diagram of a ball bearing load cell under test;
in the figure: 1. the device comprises an inner ring upper clamp, 2, a gland, 3, a connecting screw, 4, an upper positioning conical surface, 5, a rotating shaft interface, 6, a handle, 7, an inner ring lower clamp, 8, a lower positioning conical surface, 9, a plane seat, 10, a mounting positioning hole, 11, an inner ring mounting base, 12, a mounting positioning pin, 13, a positioning bracket, 14, a bottom bracket, 15, a threaded hole bracket, 16, a positioning threaded hole, 17, an outer ring mounting base, 18, a half-threaded bolt, 19, a ball bearing to be tested, 20 and a central threaded hole;
A. and (B) connecting the rotating shaft and the dynamometer.
Detailed Description
In order to make the structure and function of the present utility model clearer, the technical solution in the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present utility model.
Referring to fig. 1-9, a positioning loading tool for testing the moment of a ball bearing comprises an inner ring clamp and an outer ring clamp, wherein the bearing to be tested is positioned axially and radially through the inner ring clamp and the outer ring clamp, and a load is applied to detect the rotation moment and the starting moment.
Specifically, the inner ring clamp comprises an inner ring upper clamp 1 and an inner ring lower clamp 7 which are clamped on the upper side and the lower side of an inner ring, the inner ring lower clamp 7 is provided with a lower positioning conical surface 8 matched with an inner hole of a bearing inner ring, the center of the lower positioning conical surface is provided with a cavity structure with internal threads, the inner ring lower clamp 7 is positioned and installed through an inner ring installation base 11, the inner ring installation base 11 is provided with an installation positioning pin 12 for positioning the inner ring lower clamp 7, and the inner ring lower clamp 7 is provided with an installation positioning hole 10 matched with the installation positioning pin 12; the inner ring upper clamp 1 comprises a gland 2 matched with the end face of the inner ring of the bearing, an upper positioning conical surface 4 matched with the inner hole of the inner ring of the bearing is arranged on one side end face of the gland 2, a connecting screw 3 is arranged on the positioning conical surface 4, a handle 6 is arranged on one side end face of the gland 2 away from the upper positioning conical surface 4, the connecting screw 3 is connected with an inner thread of a cavity structure of the inner ring lower clamp 7 in a matched manner, and a rotating shaft interface 5 used for connecting a rotating shaft is arranged on the gland 2.
Further, the lower inner ring clamp 7 is formed with a plane seat 9 adapted to the inner ring installation base 11 on the outer periphery of the lower positioning conical surface 8, an installation positioning hole 10 matched with an installation positioning pin 12 on the inner ring installation base 11 is arranged on the plane seat 9, and the lower inner ring clamp 7 is assembled on the inner ring installation base 11 through the installation positioning hole 10.
Further, the inner ring mounting base 11 forms an annular side wall around the outer circumference, so that the inner ring mounting base 11 forms a barrel-shaped structure, and the diameter of the inner ring mounting base 11 is matched with the diameter of the outer ring clamp, so that the diameter of the ball bearing 19 to be measured is limited.
Further, the number of the installation positioning pins 12 of the inner ring installation base 11 and the number of the installation positioning holes 10 of the inner ring lower clamp 7 are three, and the circumferential rotation of the connecting screw 3 is prevented when the connecting screw is screwed after installation.
The inner ring positioning method comprises the following steps: the inner ring lower clamp 7 is arranged on the inner ring installation base 11 through the installation locating hole 10 and the installation locating pin 12, the bearing 19 to be detected is arranged on the lower locating conical surface 8 of the inner ring lower clamp 7, the inner ring upper clamp 1 is connected with the inner threads of the inner ring lower clamp 7 through the connecting screw 3, and the inner ring lower clamp is taken out after being screwed, and is put into the outer ring clamp for locating and locking.
The outer ring clamp comprises a positioning bracket 13 for installing a positioning bearing outer ring and an outer ring installation base 17 connected with the positioning bracket 13, the positioning bracket 13 comprises a bottom bracket 14 and three groups of threaded hole brackets 15 which are longitudinally arranged and are arranged on the bottom bracket 14, the three groups of threaded hole brackets 15 are distributed at equal intervals along the circumferential direction, a plurality of positioning screw holes 16 are longitudinally arranged on each threaded hole bracket 15 at equal intervals, and the positioning screw holes 16 on the three groups of threaded hole brackets 15 are arranged in a one-to-one correspondence manner. The three threaded hole brackets 15 are assembled with half-threaded bolts 18 in positioning threaded holes 16 at the positions corresponding to the ball bearings 19 to be measured, and the half-threaded bolts 18 position the outer ring of the bearing in the radial direction. The outer ring installation base 17 is provided with an installation locating pin 12, a bottom bracket 14 of the locating bracket 13 is provided with an installation locating hole 10 matched with the installation locating pin 12 and a central threaded hole 20 matched with the connecting screw 3 of the inner ring upper clamp 1, and the outer ring installation base 17 is connected with the locating bracket 13 and the inner ring lower clamp 7 through the installation locating pin 12.
Further, 9 positioning screw holes 16 are arranged on each screw hole bracket 15 at equal intervals in the longitudinal direction.
Further, the number of the installation positioning pins 12 of the outer ring installation base 17 and the number of the installation positioning holes 10 of the positioning bracket 13 are three.
The outer ring positioning method comprises the following steps: the outer ring installation base 17 is connected with the installation positioning hole 10 through the installation positioning pin 12 to form a positioning bracket 13, the installed inner ring clamp and the bearing to be measured are installed in the positioning bracket 13, and the installation positioning pin 12 of the outer ring installation base 17 is positioned with the installation positioning hole 10 of the inner ring lower clamp 7. And a positioning screw hole 16 at a position near the center of the bearing outer ring in the height direction is selected, a half-thread bolt 18 is installed in and screwed, and radial positioning of the bearing is ensured. And taking out the outer ring mounting base 17 to form the component to be tested.
Further, the bottom of the positioning bracket is connected with the dynamometer through a steel wire, and the dynamometer and the bottom of the positioning bracket are on the same horizontal plane.
The force measuring method comprises the following steps: the assembly to be measured is arranged on a rotating shaft through a rotating shaft interface 5 on the inner ring clamp 1, a bottom support 14 at the bottom of the outer positioning support 13 is connected with the dynamometer through a steel wire, and the dynamometer is ensured to be fixed and is on the same horizontal plane with the bottom support 14. Starting the rotating shaft, wherein the product of the indicating number of the dynamometer and the radius of the fixed base is the rotating moment of the bearing, and the rotating moment when the bearing is started is the starting moment.
In the process of testing the starting moment and the rotating moment of the bearing, the positioning problem of the bearing is considered. In the installation process before the test, the bearing needs to be axially positioned and radially positioned, the concentricity of the bearing and the rotating shaft is ensured, and meanwhile, the universality of the device on bearings with different sizes is realized from the aspect of energy conservation and environmental protection.
In consideration of the problems, the designed tool designs the inner ring fixture into a pair of universal conical shapes, can be suitable for ball bearings with different inner diameters within a certain size range, and increases the friction force between a coating of a hanging glue and the inner ring; multiple rows of screw holes are designed in the radial direction of the outer ring clamp, and radial positioning of bearings with different widths in a certain size range is realized through 3 bolts. The tool realizes complete positioning of the bearing in the process of testing starting moment and rotating moment of the bearings with different outer diameters, inner diameters and width sizes within a certain size range, and the universality of the tool reduces the time and material waste generated by independently designing the tool due to different sizes of the bearing, so that the testing cost is saved, and the testing period is shortened. The tool can be used by a special test platform, and can also be used on general equipment such as a four-ball tester by changing an interface.
The application method of the positioning loading tool for testing the moment of the ball bearing comprises the following steps of mounting a lower inner ring clamp on a mounting positioning pin of an inner ring mounting base, placing a bearing to be tested on a lower positioning conical surface of the lower inner ring clamp, connecting a connecting screw rod of an upper inner ring clamp through an inner hole of the bearing to be tested to be connected with an inner thread of a cavity structure of the lower inner ring clamp, and taking out an assembly formed by the clamp on the inner ring, the bearing to be tested and the lower inner ring clamp after screwing; connecting a positioning bracket to a mounting positioning pin of an outer ring mounting base, loading an assembly formed by an inner ring upper clamp, a bearing to be tested and an inner ring lower clamp into the positioning bracket, connecting and positioning the assembly through a mounting positioning hole of the inner ring lower clamp and a mounting positioning pin of the outer ring mounting base, connecting a connecting screw rod of the inner ring lower clamp with a central threaded hole of the positioning bracket, selecting a positioning screw hole in the height direction of the outer ring of the bearing, mounting three half-threaded bolts into the positioning screw hole and screwing the positioning screw rod to the outer diameter surface of the bearing to ensure the radial positioning of the bearing, taking out the outer ring mounting base, mounting the inner ring upper clamp on a rotating shaft through a rotating shaft interface, connecting a bottom bracket of the positioning bracket with a dynamometer through a steel wire, ensuring the dynamometer to be fixed and on the same horizontal plane with the bottom bracket, and starting the rotating shaft to measure the rotating moment and the starting moment of the bearing to be tested through dynamometer indication. The product of the dynamometer indication and the radius of the bottom bracket is the rotation moment of the bearing, and the rotation moment when the bearing is started is the starting moment.
The foregoing list is only the preferred embodiments of the present utility model. Obviously, the utility model is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present utility model.
Claims (9)
1. The utility model provides a location loading frock of test ball bearing moment which characterized in that: the inner ring clamp comprises an inner ring upper clamp and an inner ring lower clamp which are clamped on the upper side and the lower side of an inner ring, the inner ring lower clamp is provided with a lower positioning conical surface matched with an inner hole of a bearing inner ring, the center of the lower positioning conical surface is provided with a cavity structure with internal threads, the inner ring upper clamp comprises a gland matched with the end face of the bearing inner ring and a connecting screw arranged on the gland, the connecting screw is connected with the internal threads of the cavity structure of the inner ring lower clamp in a matched manner, and a rotating shaft interface for connecting a rotating shaft is arranged on the gland; the outer ring clamp comprises a positioning bracket for installing and positioning the outer ring of the bearing, a plurality of positioning screw holes are formed in the positioning bracket, half-thread bolts are optionally arranged in the positioning screw holes, and the half-thread bolts radially position the outer ring of the bearing.
2. The positioning loading tool for testing the moment of the ball bearing according to claim 1, wherein: the mounting base is provided with a mounting positioning pin for positioning the inner ring clamp or the outer ring clamp.
3. The positioning loading tool for testing the moment of the ball bearing according to claim 2, wherein: the inner ring lower clamp is characterized in that a plane seat matched with the installation base is formed on the periphery of the lower positioning conical surface in a continuous mode, an installation positioning hole matched with an installation positioning pin on the installation base is formed in the plane seat, and the inner ring lower clamp is assembled on the installation base through the installation positioning hole.
4. The positioning loading tool for testing the moment of the ball bearing according to claim 2, wherein: the bottom surface of the positioning bracket is provided with a mounting positioning hole matched with a mounting positioning pin on the mounting base, and the positioning bracket is assembled on the mounting base through the mounting positioning hole.
5. The positioning loading tool for testing the moment of the ball bearing according to claim 2, wherein: and a central threaded hole matched with a connecting screw rod of the clamp on the inner ring is also formed in the bottom surface of the positioning support.
6. The positioning loading tool for testing the moment of the ball bearing according to claim 2, wherein: the installation base comprises an inner ring installation base and an outer ring installation base, and the inner ring installation base and the outer ring installation base are independently used.
7. The positioning loading tool for testing the moment of the ball bearing according to claim 1, wherein: the locating support comprises a bottom support and three groups of longitudinally arranged threaded hole supports arranged on the bottom support, the three groups of threaded hole supports are distributed at equal intervals along the circumferential direction, a plurality of locating screw holes are arranged on each threaded hole support along the longitudinal direction at equal intervals, and the locating screw holes on the three groups of threaded hole supports are arranged in one-to-one correspondence.
8. The positioning loading tool for testing the moment of the ball bearing according to claim 7, wherein: nine positioning screw holes are longitudinally and equidistantly arranged on each screw hole bracket.
9. The positioning loading tool for testing the moment of the ball bearing according to claim 1, wherein: the bottom of the positioning bracket is connected with the dynamometer through a steel wire, and the dynamometer and the bottom of the positioning bracket are on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320934701.7U CN219890626U (en) | 2023-04-24 | 2023-04-24 | Positioning loading tool for testing moment of ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320934701.7U CN219890626U (en) | 2023-04-24 | 2023-04-24 | Positioning loading tool for testing moment of ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219890626U true CN219890626U (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320934701.7U Active CN219890626U (en) | 2023-04-24 | 2023-04-24 | Positioning loading tool for testing moment of ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219890626U (en) |
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2023
- 2023-04-24 CN CN202320934701.7U patent/CN219890626U/en active Active
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