CN213364651U - Large-scale conical bearing roller magnetization unit - Google Patents
Large-scale conical bearing roller magnetization unit Download PDFInfo
- Publication number
- CN213364651U CN213364651U CN202021718300.0U CN202021718300U CN213364651U CN 213364651 U CN213364651 U CN 213364651U CN 202021718300 U CN202021718300 U CN 202021718300U CN 213364651 U CN213364651 U CN 213364651U
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- bearing roller
- supporting seat
- conical bearing
- bracket
- fixed
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- 230000005415 magnetization Effects 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 13
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 239000006249 magnetic particle Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to a nondestructive test's infiltration detection area provides a large-scale conical bearing roller magnetization unit. The proposed large-scale conical bearing roller magnetizer has a non-magnetic-conductive bearing bracket for bearing the conical bearing roller; the non-magnetic conductive support bracket is supported on the support seat in a sliding way; the left end and the right end of the conical bearing roller are respectively provided with a left electrode and a right electrode; one end of the supporting seat is fixed on the working table of the flaw detector through a bracket hinged with the supporting seat; the other end of the supporting seat is fixed on the working table of the flaw detector through an adjusting mechanism; the adjusting structure is provided with a fixed sleeve fixed on the working table surface of the flaw detector; the adjusting bolt connected with the fixing sleeve is hinged with the supporting seat through the rotary connector to form a structure that the supporting seat end connected with the rotary connector is lifted through the connecting position of the adjusting bolt and the internal threaded hole, and the axis of the conical bearing roller is coincided with the axes of the left electrode and the right electrode. The utility model has the characteristics of simple structure, low in manufacturing cost, adjustment convenience.
Description
Technical Field
The utility model relates to a nondestructive test's infiltration detection area specifically is a large-scale conical bearing roller magnetization unit.
Background
The bearing roller is an important part of the bearing, and the quality of the bearing roller directly influences the reliability and the service life of the bearing. Therefore, after the bearing roller is machined, it needs to be inspected whether the bearing roller has defects, and the detection of the near-surface and surface defects is generally performed by using a magnetic powder inspection method. The roller is magnetized firstly, then the magnetic suspension is sprayed on the roller, and finally whether the roller meets the quality requirement or not is judged according to the magnetic powder display trace on the roller.
The flaw detection of the roller generally adopts a direct current method to carry out circumferential magnetization and is used for finding the defect parallel to the current direction. The direct energization method is a magnetization method (as shown in fig. 1) in which a workpiece is clamped between two clamping electrode plates of a flaw detector by a pair of contact chucks through which current can pass, and a complete circumferential magnetic field is formed in the workpiece by passing a magnetizing current directly through a roller; the direct electrifying method not only has higher detection sensitivity, but also is simple, convenient and quick, and is one of the most applied methods in magnetic particle flaw detection; however, this method also has its limitations: when the electrifying method is adopted, the end face part of the workpiece, which is in contact with the electrode chuck, is required to keep good electric contact, if the contact is not proper, the contact surface of the clamping electrode and the workpiece can generate electric arc ignition, the surface of the workpiece is ablated or the end face of the workpiece is burnt, so that the workpiece is scrapped. The magnetizing current adopted by the direct energization method is in direct proportion to the diameter of a workpiece, so that the diameter of the large roller is larger, the adopted magnetizing current is also relatively larger, the contact surface of the large roller and an electrode chuck is also larger, and compared with the small-diameter roller, electric arc ignition and burn are easier to occur. On the other hand, when the magnetic suspension flows over an overheated surface of the workpiece, the overheated temperature may cause a change in the viscosity of the carrier liquid of the magnetic suspension, thereby reducing the sensitivity of detection.
In order to avoid arcing and burning, it is important to ensure that the two end faces of the workpiece are in close contact with the electrode holder, in addition to the requirement that the contact area between the electrode holder and the workpiece be clean and free of impurities. In magnetic particle inspection, the roller is generally placed on a bracket or is placed in a bracket for magnetization. For the cylindrical roller, the generatrix is a straight line, which can ensure stable placement, while the generatrix of the tapered roller is an oblique line, which can incline, so that two end faces of the tapered roller are not closely attached to the electrode chuck, and ignition and burning are easy to occur (as shown in fig. 2).
SUMMERY OF THE UTILITY MODEL
The utility model provides a large-scale conical bearing roller magnetization unit makes it can solve the problem that large-scale conical roller easily strikes sparks when adopting direct circular telegram method magnetization.
The utility model adopts the following technical scheme for accomplishing the above purpose:
a large-scale conical bearing roller magnetizer, the magnetizer has a non-magnetic-conductive bearing bracket for bearing the conical bearing roller; the length of the non-magnetic bearing bracket is less than that of the conical bearing roller; the non-magnetic-conductive bearing bracket is supported on the supporting seat in a sliding manner; the conical bearing roller is positioned between the left electrode and the right electrode; one end of the supporting seat is fixed on the working table of the flaw detector through a support, and the upper end of the support is rotatably hinged with the supporting seat; the bracket is positioned below the larger-diameter end of the conical bearing roller; the other end of the supporting seat is fixed on the working table surface of the flaw detector through an adjusting mechanism; the adjusting structure is provided with a fixed sleeve fixed on the working table surface of the flaw detector; the fixed sleeve is provided with an internal thread hole matched with the adjusting bolt in an inosculating way, and the adjusting bolt is hinged with the supporting seat through a rotary connector, so that a structure that the supporting seat end connected with the rotary connector is lifted by adjusting the connecting position of the adjusting bolt and the internal thread hole on the fixed sleeve, and the axis of the conical bearing roller is coincided with the axes of the left electrode and the right electrode is formed.
The upper half part of the fixing sleeve is cylindrical, and a threaded hole is formed in the cylindrical inner part; the bottom of the fixed sleeve is rectangular, and through holes are processed on two sides of the fixed sleeve; the fixed sleeve is fixed on the working table surface of the flaw detector through a fixing bolt.
The half part of the bracket is cylindrical, and the upper end of the bracket is hinged with the supporting seat in a rotating way; the bottom is rectangle, and both sides processing through-hole, fixed cover pass through fixing bolt and be fixed in on the flaw-detector table surface.
The lower part of the adjusting bolt is of a thread structure and is in rotary fit with an internal thread hole on the fixing part; the upper end of the adjusting bolt is connected with a rotary connector.
The non-magnetic bearing bracket is rectangular, the upper end surface of the non-magnetic bearing bracket is provided with a V-shaped groove used for supporting a conical bearing roller, and the lower part of the non-magnetic bearing bracket is provided with a trapezoidal boss in sliding fit with the supporting seat; the supporting seat is provided with a trapezoidal groove matched with the trapezoidal boss.
The utility model provides a large-scale conical bearing roller magnetization unit adopts above-mentioned technical scheme, and the strike sparks and the burn of roller when having effectively reduced magnetic particle inspection have used the support frame structure, and simple to operate not only can adapt to the roller of more models and sizes in a flexible way moreover, or other special-shaped workpiece, have enlarged detection range, have simple structure, low in manufacturing cost, the convenient characteristics of adjustment.
Drawings
Fig. 1 is a schematic view of a prior art bearing roller magnetization apparatus.
Fig. 2 is a state diagram of magnetization of a bearing roller in the prior art.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is a schematic structural view of the fixing sleeve of the present invention.
Fig. 5 is a schematic structural view of the middle support of the present invention.
Fig. 6 is a schematic structural view of the adjusting bolt of the present invention.
FIG. 7 is a schematic view of the support base and the support bracket being connected together.
In the figure: 1. the device comprises a fixed sleeve, 2, an adjusting bolt, 3, a rotary connector, 4, a fixing bolt, 5, a support, 6, a support seat, 7, a non-magnetic-conductive bearing bracket, 8-1, a left electrode, 8-2, a right electrode, 9, a conical bearing roller, 10, a contact chuck, 11, a workpiece, 12, a power supply, 13, a defect, 14 and a magnetic field.
Detailed Description
The invention is described in connection with the accompanying drawings and the embodiments:
as shown in fig. 3, a large-sized conical bearing roller magnetizer has a non-magnetic-conductive support bracket 7 for supporting a conical bearing roller 9; the length of the non-magnetic bearing bracket 7 is less than that of the conical bearing roller 9; the non-magnetic conductive support bracket 7 is supported on the support seat 6 in a sliding way; the conical bearing roller positionAt the left sideBetween the electrode 8-1 and the right electrode 8-2; one end of the supporting seat 6 is fixed on the working table of the flaw detector through a bracket 5, and the upper end of the bracket 5 is rotatably hinged with the supporting seat 6; the bracket 5 is positioned below the larger-diameter end of the conical bearing roller; the other end of the supporting seat 5 is fixed on the working table of the flaw detector through an adjusting mechanism; the adjusting structure is provided with a fixed sleeve 1 fixed on the working table surface of the flaw detector; the fixed sleeve 1 is provided with an internal thread hole matched with the adjusting bolt in an inosculating way, and the adjusting bolt is hinged with the supporting seat 6 through the rotary connector 3, so that the structure that the supporting seat end connected with the rotary connector is lifted by adjusting the connecting position of the adjusting bolt and the internal thread hole in the fixed sleeve is formed, and the axes of the conical bearing roller, the left electrode and the right electrode are coincided is formed.
As shown in fig. 4, the upper half of the fixing sleeve 1 is cylindrical, and the inside of the cylinder is a threaded hole; the bottom of the fixed sleeve is rectangular, and through holes are processed on two sides of the fixed sleeve; the fixed sleeve is fixed on the working table of the flaw detector through the fixing bolt 4.
As shown in fig. 5, the half part of the bracket 5 is cylindrical, and the upper end of the bracket is hinged with the supporting seat 6; the bottom is rectangle, and both sides processing through-hole, fixed cover pass through fixing bolt and be fixed in on the flaw-detector table surface.
As shown in fig. 6, the lower part of the adjusting bolt 2 is in a threaded structure and is rotatably matched with an internal threaded hole on a fixing part; the upper end of the adjusting bolt is connected with a rotary connector.
As shown in fig. 7, the non-magnetic conductive support bracket is rectangular, the upper end surface of the non-magnetic conductive support bracket is provided with a V-shaped groove for supporting a conical bearing roller, and the lower part of the non-magnetic conductive support bracket is provided with a trapezoidal boss in sliding fit with the support seat; the supporting seat is provided with a trapezoidal groove matched with the trapezoidal boss; the trapezoidal lug boss of the supporting bracket 7 is slid into the trapezoidal groove of the supporting seat 6 from one end, so that the two are integrated.
The non-magnetic bearing bracket 7 is made of non-magnetic materials such as bakelite, hard plastic and the like, and since the flaw detection is generally carried out at the finished product stage, the workpiece is not easily damaged by selecting materials with low hardness. The length of the support bracket 7 and the shape of the V-shaped groove can be flexibly adjusted according to the length, shape and size of the roller; such as increasing the length of the support bracket (the overall size may be larger than the support seat 6), increasing or decreasing the size of the V-groove opening, etc.
In general, a left electrode of a magnetic particle flaw detector is fixed, and a right electrode is driven by a motor to move left and right to clamp and loosen a workpiece.
During magnetic particle detection, according to the difference of the size and the shape of the detected roller, the bearing bracket 7 with the proper shape and size is selected, the length of the roller needs to exceed two ends of the length of the bearing bracket 7 by a certain distance, and the roller is conveniently clamped by an electrode. Then, the supporting bracket 7 is slidably mounted on the supporting seat 6, and the device is mounted on the worktable surface between the two electrodes of the flaw detector, so that the end surface of the large head of the roller to be detected is attached to the left electrode. After positioning, the fixing bolt 4 is rotated to fix the adjusting device on the table top.
The bottom of the left end of the supporting seat 6 is rotatably hinged with the bracket 5, and the bottom of the right end is hinged with the rotary connector 3. The left end of the supporting seat 6 can ascend or descend by rotating the adjusting bolt 2, and the adjustment is finished if the axis of the roller is coincided with the axis of the electrode.
During each detection, the end face of the roller to be detected is attached to the left electrode, and then the flaw detection equipment is operated to move the right electrode to the left so as to clamp the roller, so that the roller can be electrified and magnetized; after the detection is finished, the operation equipment enables the right electrode to move rightwards, the roller is loosened, and the roller can be taken out.
Claims (5)
1. A large-scale conical bearing roller magnetization unit which characterized in that: the magnetizing device is provided with a non-magnetic-conductive bearing bracket for bearing the conical bearing roller; the length of the non-magnetic bearing bracket is less than that of the conical bearing roller; the non-magnetic-conductive bearing bracket is supported on the supporting seat in a sliding manner; the conical bearing roller is positioned between the left electrode and the right electrode; one end of the supporting seat is fixed on the working table of the flaw detector through a support, and the upper end of the support is rotatably hinged with the supporting seat; the bracket is positioned below the larger-diameter end of the conical bearing roller; the other end of the supporting seat is fixed on the working table surface of the flaw detector through an adjusting mechanism; the adjusting mechanism is provided with a fixed sleeve fixed on the working table surface of the flaw detector; the fixed sleeve is provided with an internal thread hole matched with the adjusting bolt in an inosculating way, and the adjusting bolt is hinged with the supporting seat through a rotary connector, so that a structure that the supporting seat end connected with the rotary connector is lifted by adjusting the connecting position of the adjusting bolt and the internal thread hole on the fixed sleeve, and the axis of the conical bearing roller is coincided with the axes of the left electrode and the right electrode is formed.
2. The magnetizing device for the large conical bearing roller according to claim 1, wherein: the upper half part of the fixing sleeve is cylindrical, and a threaded hole is formed in the cylindrical inner part; the bottom of the fixed sleeve is rectangular, and through holes are processed on two sides of the fixed sleeve; the fixed sleeve is fixed on the working table surface of the flaw detector through a fixing bolt.
3. The magnetizing device for the large conical bearing roller according to claim 1, wherein: the half part of the bracket is cylindrical, and the upper end of the bracket is hinged with the supporting seat in a rotating way; the bottom is rectangle, and both sides processing through-hole, fixed cover pass through fixing bolt and be fixed in on the flaw-detector table surface.
4. The magnetizing device for the large conical bearing roller according to claim 1, wherein: the lower part of the adjusting bolt is of a thread structure and is in rotary fit with an internal thread hole on the fixing part; the upper end of the adjusting bolt is connected with a rotary connector.
5. The magnetizing device for the large conical bearing roller according to claim 1, wherein: the non-magnetic bearing bracket is rectangular, the upper end surface of the non-magnetic bearing bracket is provided with a V-shaped groove used for supporting a conical bearing roller, and the lower part of the non-magnetic bearing bracket is provided with a trapezoidal boss in sliding fit with the supporting seat; the supporting seat is provided with a trapezoidal groove matched with the trapezoidal boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021718300.0U CN213364651U (en) | 2020-08-18 | 2020-08-18 | Large-scale conical bearing roller magnetization unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021718300.0U CN213364651U (en) | 2020-08-18 | 2020-08-18 | Large-scale conical bearing roller magnetization unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364651U true CN213364651U (en) | 2021-06-04 |
Family
ID=76145168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021718300.0U Active CN213364651U (en) | 2020-08-18 | 2020-08-18 | Large-scale conical bearing roller magnetization unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364651U (en) |
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2020
- 2020-08-18 CN CN202021718300.0U patent/CN213364651U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |