CN217276867U - Small-size steel ball crushing experiment frock - Google Patents
Small-size steel ball crushing experiment frock Download PDFInfo
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- CN217276867U CN217276867U CN202220081177.9U CN202220081177U CN217276867U CN 217276867 U CN217276867 U CN 217276867U CN 202220081177 U CN202220081177 U CN 202220081177U CN 217276867 U CN217276867 U CN 217276867U
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Abstract
The utility model relates to a technical field that the bearing detected, specifically a small-size steel ball crushing experiment frock, the on-line screen storage device comprises a base, first module and second module, base up end circumference array has at least three bracing piece, first module can connect in three bracing piece with sliding, first module slides along the bracing piece axial, the second module is located first module top, second module mounting means is the same with first module, the one end fixedly connected with roof of base is kept away from to the bracing piece, the roof can be connected with the depression bar with sliding, the base up end, the constant head tank has all been seted up to terminal surface under first module and the second module both ends face and the depression bar, the constant head tank is the sphere form, first module and second module have seted up the through-hole along the constant head tank center. This application is fixed a position the steel ball through setting up the constant head tank to first module and the second module through can slipping is fixed a position the steel ball that piles up in the top, makes three steel ball longitudinal axis be in same straight line, is convenient for experiment.
Description
Technical Field
The application relates to the technical field of bearing detection, in particular to a small-size steel ball crushing experiment tool.
Background
In bearing steel ball load experiment, need arrange three steel balls vertically usually, pressurize to the breakage through the load experiment machine, need keep the longitudinal axis of three steel balls to be in same straight line all the time in the experimentation, current frock when facing the steel ball that the diameter is less than 6mm, does not play better supporting role, and the experiment is comparatively difficult.
Disclosure of Invention
To the shortcoming that prior art exists, the purpose of this application provides an experiment frock suitable for small-size steel ball crushing experiment.
The above application purpose of the present application is achieved by the following technical solutions:
the utility model provides a small-size steel ball crushing experiment frock, includes:
the support device comprises a base, wherein at least three support rods are circumferentially arrayed on the upper end face of the base and are perpendicular to the upper end face of the base;
the first module can be connected to the three support rods in a sliding mode, the first module can slide along the axial direction of the support rods, and the lower end face of the first module is parallel to the upper end face of the base;
the second module is positioned above the first module, the installation mode of the second module is the same as that of the first module, and the lower end face of the second module is parallel to the upper end face of the first module;
the top plate is fixedly connected to one end, far away from the base, of the supporting rod;
the compression rod is connected to the top plate in a sliding mode, the axis of the compression rod is located in the center of the support rod array, and the compression rod slides along the axial direction;
the positioning groove is formed in the upper end face of the base, the two end faces of the first module and the second module and the lower end face of the pressure rod, the bottom face of the positioning groove is a spherical surface, the spherical center angle of the spherical surface of the positioning groove is alpha, and the angle of alpha is more than 50 degrees and less than 70 degrees;
the thickness of the first module and the thickness of the second module are 2 times of the height of the positioning groove, the first module and the second module are provided with through holes along the center of the positioning groove, and the diameter of the spherical surface of the bottom surface of the positioning groove is the same as that of the measured steel ball.
Optionally, the edge at the joint of the bottom surface of the positioning groove and the through hole is a round chamfer.
Optionally, the supporting rod comprises a sliding section and a threaded section, the threaded section is far away from the base, the diameter of the threaded section is smaller than that of the sliding section, the top plate corresponds to the supporting rod, a mounting hole is formed in the supporting rod, the diameter of the mounting hole is smaller than that of the sliding section, and the threaded section is in threaded connection with a fastening bolt.
Optionally, the fastening bolt is a wing nut.
Optionally, the support rod further includes a positioning section, the positioning section is located between the sliding section and the thread section, the diameter of the positioning section is the same as that of the installation hole, and the length of the positioning section is smaller than the thickness of the top plate.
Optionally, the base includes a seat body and a seat mold, the seat mold is installed in the same manner as the first module, and the positioning groove is formed in the upper end surface of the seat mold.
Optionally, the thickness of the top plate is not less than half of the length of the compression bar.
Optionally, the upper end of the pressing rod is fixedly connected with a pressing table, and the diameter of the pressing table is larger than that of the pressing rod.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the steel balls are positioned by arranging the positioning grooves, and the steel balls stacked above the positioning grooves are positioned by the first module and the second module which can slide, so that the longitudinal axes of the three steel balls are in the same straight line, and the experiment is convenient to carry out;
2. through detachable roof and seat mould, be convenient for change first module and second module etc. be convenient for carry out the crushing experiment for multiple size steel ball.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Reference numerals: 1. a base; 12. a base body; 13. a die is seated; 11. a support bar; 111. a slipping section; 112. a positioning section; 113. a threaded segment; 114. fastening a bolt;
2. a first module;
3. a second module;
4. a top plate; 41. mounting holes;
5. a pressure lever; 51. pressing the table;
6. positioning a groove; 61. and a through hole.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
In order to more clearly understand the technical solution shown in the embodiment of the present application, first, the working principle of the existing crushing experiment for small-sized steel balls is described.
In a bearing steel ball load test, three steel balls are generally required to be vertically arranged and pressurized to be broken through a load tester, and the longitudinal axes of the three steel balls are required to be always in the same straight line in the test process.
From the user's perspective, when the steel balls are small in size, they are not easily stacked.
Referring to fig. 1 and 2, a small-sized steel ball crushing experiment tool disclosed in the embodiment of the present application includes a base 1, a first module 2 and a second module 3, wherein at least three support rods 11 are circumferentially arrayed on an upper end surface of the base 1, the support rods 11 are perpendicular to the upper end surface of the base 1, the first module 2 is slidably connected to the three support rods 11, the first module 2 axially slides along the support rods 11, a lower end surface of the first module 2 is parallel to the upper end surface of the base 1, the second module 3 is located above the first module 2, the second module 3 is installed in the same manner as the first module 2, a lower end surface of the second module 3 is parallel to the upper end surface of the first module 2, one end of the support rods 11 away from the base 1 is fixedly connected with a top plate 4, the top plate 4 is slidably connected with a compression rod 5, an axis of the compression rod 5 is located at the center of the array of the support rods 11, the compression rod 5 axially slides, an upper end surface of the base 1, The locating slot 6 has been all seted up with depression bar 5 lower extreme terminal surface to first module 2 and 3 both ends face of second module, and 6 bottom surfaces of locating slot are the sphere, and 6 sphere central angles of locating slot are alpha, and 50 < alpha <70, first module 2 and 3 thickness of second module are twice locating slot 6 height, and first module 2 and second module 3 have seted up through-hole 61 along 6 centers of locating slot, and the sphere diameter of 6 bottom surfaces of locating slot is the same with the steel ball diameter of surveying.
Specifically, the first module 2 and the second module 3 can axially slide on the support rod 11 along the support rod 11, the positioning grooves 6 for placing the steel balls are formed in the upper end face of the base 1, the two end faces of the first module 2 and the second module 3 and the lower end face of the pressure rod 5, the through holes 61 formed in the centers of the positioning grooves 6 of the first module 2 and the second module 3 enable adjacent steel balls to be mutually contacted and supported, and the pressure rod 5 axially slides through the top plate 4 to apply load to the steel balls.
Like this, fix a position the steel ball through setting up constant head tank 6 to fix a position the steel ball that piles up above through first module 2 that can slide and second module 3, make three steel ball longitudinal axis be in the same straight line, be convenient for carry out the experiment.
In some possible ways, the base 1 and the top plate 4 are both cylindrical blocks, and the first module 2 and the second module 3 are both disc-shaped. The bottom surface of the positioning groove 6 is a spherical surface, the positioning groove 6 has no side wall, the spherical center angle of the spherical surface of the positioning groove 6 is alpha, the spherical center angle of the positioning groove 6 on the base 1 is an arc-shaped central angle of the projection of the spherical surface of the bottom surface of the positioning groove 6 on a plane vertical to the upper end surface of the base 1, and the positioning grooves 6 have the same shape; the central angle alpha, 50 degrees < alpha <70 degrees, when alpha is too large, the measurement precision is easily influenced, when alpha is too small, the positioning is not easily carried out, and the diameter of the through hole 61 can be selected to be one half of the diameter of the circular surface of the positioning groove 6 on the upper end surface of the base 1.
Further description is provided below with respect to specific usage scenarios.
During the use, put into the constant head tank 6 of base 1, first module 2 and second module 3 up end in proper order with the steel ball that awaits measuring, first module 2 and second module 3 fall and make adjacent steel ball contact, and the depression bar 5 that falls contacts the steel ball sphere of top, applys decurrent pressure to depression bar 5 upper end through the load experiment machine until the steel ball is cracked.
As a specific implementation mode of the small-size steel ball crushing experiment tool provided by the application, the edge of the joint of the bottom surface of the positioning groove 6 and the through hole 61 is set to be a round chamfer.
The edge at the joint of the bottom surface of the positioning groove 6 and the through hole 61 is set to be a round chamfer angle by combining a specific use scene, so that the supporting effect of the edge on the steel ball in the experimental process is reduced, and the experimental result is more accurate.
Referring to fig. 1 and 3, as another specific embodiment of the small-sized steel ball crushing experiment tool provided by the application, the support rod 11 includes a sliding section 111 and a threaded section 113, the threaded section 113 is far away from the base 1, the diameter of the threaded section 113 is smaller than that of the sliding section 111, the top plate 4 is provided with a mounting hole 41 corresponding to the support rod 11, the diameter of the mounting hole 41 is smaller than that of the sliding section 111, and the threaded section 113 is in threaded connection with a fastening bolt 114.
Combine specific use scene, through detachable roof 4, be convenient for change first module 2 and second module 3, be convenient for carry out the crushing experiment for multiple size steel ball.
Further, the fastening bolt 114 is a wing nut.
It should be appreciated that the wing nut facilitates manual tightening.
Further, the support rod 11 further includes a positioning section 112, the positioning section 112 is located between the sliding section 111 and the threaded section 113, the diameter of the positioning section 112 is the same as that of the mounting hole 41, and the length of the positioning section 112 is smaller than the thickness of the top plate 4.
It should be understood that the top plate 4 is supported by the step surface between the positioning section 112 and the sliding section 111, and the top plate 4 is more accurately positioned by the positioning section 112 and the diameter of the mounting hole 41, so that the influence of the position offset of the pressure rod 5 on the experiment is reduced.
Further, the base 1 includes a seat body 12 and a seat mold 13, the installation mode of the seat mold 13 is the same as that of the first module 2, and the positioning groove 6 is opened on the upper end surface of the seat mold 13.
It should be understood that through the seat mould 13 that can dismantle the change, make base 1 also through the crushing experiment of the multiple size steel ball of partial change adaptation, increase base 1 to the crushing experiment's of different size steel balls adaptability.
As a specific implementation mode of the small-size steel ball crushing experiment tool, the thickness of the top plate 4 is not less than half of the length of the compression bar 5.
It is understood that the supporting surface of the top plate 4 for bearing the radial force of the compression rod 5 is increased, and the influence of deflection generated by unbalanced force on the compression rod 5 on the experiment is influenced.
As a specific implementation manner of the small-size steel ball crushing experiment tool provided by the application, the upper end of the pressure rod 5 is fixedly connected with a pressure table 51, and the diameter of the pressure table 51 is larger than that of the pressure rod 5.
It should be understood that the pressure table 51 increases the force bearing area of the upper end of the pressure rod 5, so that the load tester can apply load conveniently.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a small-size steel ball crushing experiment frock which characterized in that includes:
the support device comprises a base (1), wherein at least three support rods (11) are circumferentially arrayed on the upper end face of the base (1), and the support rods (11) are perpendicular to the upper end face of the base (1);
a first module (2), wherein the first module (2) can be connected to three support rods (11) in a sliding manner, the first module (2) slides along the support rods (11) axially, and the lower end face of the first module (2) is parallel to the upper end face of the base (1);
the second module (3) is positioned above the first module (2), the second module (3) is installed in the same way as the first module (2), and the lower end face of the second module (3) is parallel to the upper end face of the first module (2);
the top plate (4) is fixedly connected to one end, far away from the base (1), of the supporting rod (11);
the compression rod (5), the compression rod (5) is connected to the top plate (4) in a sliding manner, the axis of the compression rod (5) is positioned at the center of the array of the support rods (11), and the compression rod (5) slides along the axial direction;
the positioning groove (6) is formed in the upper end face of the base (1), the two end faces of the first module (2) and the second module (3) and the lower end face of the pressure rod (5), the positioning groove (6) is formed in the bottom face of the positioning groove (6) in a spherical surface mode, the spherical center angle of the spherical surface of the positioning groove (6) is alpha, and the angle is 50 degrees < alpha <70 degrees;
the thickness of the first module (2) and the second module (3) is 2 times of the height of the positioning groove (6), the first module (2) and the second module (3) are arranged along the center of the positioning groove (6) and provided with a through hole (61), and the diameter of the spherical surface of the bottom surface of the positioning groove (6) is the same as that of the measured steel ball.
2. The small-size steel ball crushing experiment tool of claim 1, characterized in that: the edge of the joint of the bottom surface of the positioning groove (6) and the through hole (61) is a round chamfer.
3. The small-size steel ball crushing experiment tool of claim 1, characterized in that: the utility model discloses a fixed seat of a motor vehicle, including bracing piece (11) including slip section (111) and screw thread section (113), base (1) is kept away from to screw thread section (113), screw thread section (113) diameter is less than slip section (111), roof (4) correspond mounting hole (41) have been seted up to bracing piece (11), mounting hole (41) diameter is less than slip section (111) diameter, screw thread section (113) threaded connection has fastening bolt (114).
4. The small-size steel ball crushing experiment tool according to claim 3, characterized in that: the fastening bolt (114) is a butterfly nut.
5. The small-size steel ball crushing experiment tool according to claim 3, characterized in that: the supporting rod (11) further comprises a positioning section (112), the positioning section (112) is located between the sliding section (111) and the threaded section (113), the diameter of the positioning section (112) is the same as that of the mounting hole (41), and the length of the positioning section (112) is smaller than the thickness of the top plate (4).
6. The small-size steel ball crushing experiment tool according to claim 3, characterized in that: the base (1) comprises a base body (12) and a base die (13), the mounting mode of the base die (13) is the same as that of the first module (2), and the positioning groove (6) is formed in the upper end face of the base die (13).
7. The small-size steel ball crushing experiment tool of claim 1, characterized in that: the thickness of the top plate (4) is not less than half of the length of the compression bar (5).
8. The small-size steel ball crushing experiment tool according to claim 1, characterized in that: the upper end of the pressing rod (5) is fixedly connected with a pressing platform (51), and the diameter of the pressing platform (51) is larger than that of the pressing rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220081177.9U CN217276867U (en) | 2022-01-10 | 2022-01-10 | Small-size steel ball crushing experiment frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220081177.9U CN217276867U (en) | 2022-01-10 | 2022-01-10 | Small-size steel ball crushing experiment frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217276867U true CN217276867U (en) | 2022-08-23 |
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ID=82894353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220081177.9U Active CN217276867U (en) | 2022-01-10 | 2022-01-10 | Small-size steel ball crushing experiment frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217276867U (en) |
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- 2022-01-10 CN CN202220081177.9U patent/CN217276867U/en active Active
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