CN211518557U - Bearing position repairing tool - Google Patents
Bearing position repairing tool Download PDFInfo
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- CN211518557U CN211518557U CN201922308056.4U CN201922308056U CN211518557U CN 211518557 U CN211518557 U CN 211518557U CN 201922308056 U CN201922308056 U CN 201922308056U CN 211518557 U CN211518557 U CN 211518557U
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- half die
- shaft section
- bearing position
- right half
- left half
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Abstract
The utility model discloses a bearing position repairing tool, which is used for repairing the bearing position worn by a stepped shaft, wherein the stepped shaft comprises a first shaft section, a second shaft section and a third shaft section, the diameter of the first shaft section is smaller than that of the second shaft section, the diameter of the second shaft section is smaller than that of the third shaft section, and the bearing position is arranged at the position, close to the third shaft section, of the second shaft section; the bearing position repairing tool comprises a left half die and a right half die, wherein a left cavity matched with the stepped shaft is formed in one side, close to the right half die, of the left half die, and a right cavity matched with the stepped shaft is formed in one side, close to the left half die, of the right half die; the lower end of the left half die is hinged with the lower end of the right half die, and the upper end of the left half die is detachably and fixedly connected with the upper end of the right half die. The utility model discloses frock is restoreed to bearing position has simple structure, and it is convenient to seek, and the bearing position after the restoration is with the high advantage of the axiality precision of step shaft.
Description
Technical Field
The utility model relates to a bearing position restores the field, concretely relates to frock is restoreed to bearing position.
Background
In the shaft transmission technology, the surface of a shaft matched with the inner diameter surface of an inner circle of a bearing inner ring is a bearing position. When the abrasion value exceeds a limited range, the phenomena of sliding, shifting and the like can occur due to overlarge clearance between the bearing and the shaft; under the premise of considering the cost, the bearing position is usually repaired to reach the use standard size value, so that the effect of repeated use is achieved.
The repair of the bearing position usually adopts a high polymer composite material to repair the worn part. The bearing position repairing in the related art has the following problems: firstly, the left half die and the right half die of the bearing position repairing tool in the prior art are separated, and because a large number of bearing position repairing tools with different specifications and sizes are often stored in a warehouse, and the size difference of the bearing position repairing tools with different specifications and sizes is very small, a large amount of time is often consumed for finding the left half die and the right half die which are mutually paired; secondly, the bearing position tool in the prior art is not provided with a positioning part, so that the coaxiality of the repaired bearing position and the rotating shaft is difficult to ensure; thirdly, the bin outlet of frock is restoreed to prior art's bearing position is cylindrical, and remaining polymer combined material stub bar is difficult to clear away, and the work load of polishing is big, and the scope of polishing greatly can lead to this place size deviation great.
Disclosure of Invention
For solving above technical problem, the utility model aims at providing a frock is restoreed to bearing position, the left half mould and the right half mould that make frock is restoreed to bearing position are even as an organic whole, are convenient for look for to the frock is restoreed to bearing position has location portion, can satisfy the axiality of bearing position after the restoration and step shaft.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A bearing position repairing tool is used for repairing a worn bearing position of a stepped shaft, the stepped shaft comprises a first shaft section, a second shaft section and a third shaft section, the diameter of the first shaft section is smaller than that of the second shaft section, the diameter of the second shaft section is smaller than that of the third shaft section, and the bearing position is arranged at the position, close to the third shaft section, of the second shaft section; the bearing position repairing tool comprises a left half die and a right half die, wherein a left cavity matched with the stepped shaft is formed in one side, close to the right half die, of the left half die, and a right cavity matched with the stepped shaft is formed in one side, close to the left half die, of the right half die; the lower end of the left half die is hinged with the lower end of the right half die, and the upper end of the left half die is detachably and fixedly connected with the upper end of the right half die.
Furthermore, the upper end of the left half die is provided with a first through hole, the upper end of the right half die is provided with a second through hole, when the left half die and the right half die are closed, the central axis of the first through hole is collinear with the central axis of the second through hole, and the left half die and the right half die are connected with a nut through a fixedly connected bolt.
Furthermore, the lower end of the left half die is provided with a first hinge hole, the lower end of the right half die is provided with a second hinge hole, and the lower end of the left half die and the lower end of the right half die are connected with a nut through a hinge bolt.
Furthermore, the length of the left half die and the right half die in the direction of the central axis of the stepped shaft is greater than that of the second shaft section, and tool steps matched with the shaft steps between the first shaft section and the second shaft section are arranged in the left half die and the right half die.
Furthermore, a left discharge chute is arranged on the die assembly surface of the left half die, the opening size of the end close to the axial line of the left discharge chute is large, and the opening size of the end far from the axial line is small; and the right half die is provided with a right discharge chute matched with the left discharge port on the die assembly surface.
Furthermore, the width dimension of the left discharge chute is larger than the depth dimension, and the width dimension of the right discharge chute is larger than the depth dimension.
The utility model discloses frock is restoreed to bearing position has simple structure for prior art, and it is convenient to look for, and the bearing position after the restoration is with the high advantage of the axiality precision of step shaft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a stepped shaft to be repaired;
FIG. 2 is an exploded view of a bearing position repairing tool and a stepped shaft;
FIG. 3 is an inside elevational view of the left mold half;
in the above figures:
1, a stepped shaft; 101 a first shaft section; 102 a second shaft section; 103 a third shaft section; 104 bearing position;
2, left half mould; 201 a first via hole; 202 a first hinge hole; 203, tooling a ladder; 204 left discharge chute;
3, a right half-mould; 301 a second through hole; 302 a second hinge hole; 303 right discharge chute;
4, fixedly connecting a bolt;
5, a nut;
6 hinge bolt.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the spirit of the invention. The invention is therefore not limited to the specific embodiments disclosed below.
Referring to FIG. 1, FIG. 1 illustrates a stepped shaft 1 of a bearing location 104 to be repaired. The stepped shaft 1 comprises a first shaft section 101, a second shaft section 102 and a third shaft section 103, wherein the diameter of the first shaft section 101 is smaller than that of the second shaft section 102, the diameter of the second shaft section 102 is smaller than that of the third shaft section 103, and a bearing position 104 is arranged at the position, close to the third shaft section 103, of the second shaft section 102.
Referring to fig. 2, fig. 2 is an exploded view of a bearing position repairing tool and a stepped shaft 1; referring to fig. 3, fig. 3 is a front view of the interior of the left mold half.
The bearing position repairing tool comprises a left half die 2 and a right half die 3, wherein a left cavity matched with the stepped shaft 1 is formed in one side, close to the right half die 3, of the left half die 2, and a right cavity matched with the stepped shaft 1 is formed in one side, close to the left half die 2, of the right half die 3; the lower end of the left half die 2 is hinged with the lower end of the right half die 3, and the upper end of the left half die 2 is detachably and fixedly connected with the upper end of the right half die 3.
In the above embodiment, the lower end of the left half mold 2 is hinged to the lower end of the right half mold 3, the left half mold 2 and the right half mold 3 are connected into a whole, the right half mold 3 can be found when the left half mold 2 is found, and the time for finding the matched left half mold 2 and right half mold 3 is greatly reduced.
Further, the upper end of the left half die 2 is provided with a first through hole 201, the upper end of the right half die 3 is provided with a second through hole 301, when the left half die 2 and the right half die 3 are closed, the central axis of the first through hole 201 is collinear with the central axis of the second through hole 301, and the left half die 2 and the right half die 3 are connected with the nut 5 through the fixed connection bolt 4.
In the above embodiment, specifically, the upper end of the left half mold 2 and the upper end of the right half mold 3 are connected by the detachable fixed connection bolt 4 and the detachable fixed connection nut 5, which is convenient and flexible.
Further, the lower end of the left half mold 2 is provided with a first hinge hole 202, the lower end of the right half mold 3 is provided with a second hinge hole 302, and the lower end of the left half mold 2 and the lower end of the right half mold 3 are connected with a nut 5 through a hinge bolt 6.
In the above embodiment, specifically, the lower end of the left half mold 2 and the lower end of the right half mold 3 are connected by the hinge bolt 6 and the nut 5.
Further, referring to fig. 3, the lengths of the left half mold 2 and the right half mold 3 along the central axis direction of the stepped shaft 1 are greater than the length of the second shaft segment 102, and a tool step 203 matched with the shaft step between the first shaft segment 101 and the second shaft segment 102 is arranged in the left half mold 2 and the right half mold 3.
In the above embodiment, the lengths of the left half mold 2 and the right half mold 3 along the central axis direction of the stepped shaft 1 are greater than the length of the second shaft section 102, one section of the left half mold 2 and the right half mold 3 is matched with the first shaft section 101, and since the first shaft section 101 is not worn, the coaxiality of the central axes of the first shaft section 101 and the stepped shaft 1 is higher, so that the coaxiality requirement of the bearing position 104 to be repaired and the stepped shaft 1 can be met by positioning through the section.
Further, a left discharge chute 204 is arranged on the mold clamping surface of the left half mold 2, the opening size of the near axial end of the left discharge chute 204 is large, and the opening size of the far axial end is small; the right half mold 3 is provided with a right discharge chute 303 matched with the left discharge chute 204 on the joint surface.
In the above embodiment, specifically, the left discharge chute 204 is disposed on the mating surface of the left half mold 2, the right discharge chute 303 is disposed on the mating surface of the right half mold 3, and the opening size of each discharge chute near the central axis end is larger than the opening size far away from the central axis end, so that the excessive polymer composite material can overflow conveniently.
Further, the width dimension of the left spout 204 is greater than the depth dimension, and the width dimension of the right spout 303 is greater than the depth dimension.
In the above embodiment, the width dimension of the left discharging groove 204 and the right discharging groove 303 is generally far greater than the depth dimension, the formed stub bar is relatively flat, and the size of the stub bar along the circumferential direction is relatively small, so that the grinding is facilitated.
Exemplarily, the following are the operation steps of one embodiment of the bearing position repairing tool of the present invention:
step one, finding a bearing position repairing tool matched with the size of a stepped shaft 1 to be repaired, and coating a release agent in a left half mould 2 and a right half mould 3;
secondly, polishing the bearing position 104 of the stepped shaft 1 to be repaired according to requirements, and then coating sufficient polymer composite materials for repairing;
step three, dismounting a fixedly connected bolt 4 and a nut 5 which are connected with the upper end of the left half mould 2 and the upper end of the right half mould 3, rotating and opening the left half mould 2 and the right half mould 3, sleeving the left half mould and the right half mould on the stepped shaft 1 to be repaired, and enabling the worn part to avoid the left discharge chute 204 and the right discharge chute 303 as far as possible;
step three, the left half mould 2 and the right half mould 3 are closed in a rotating mode, and the left half mould 2 and the right half mould 3 are locked by a fixedly connected bolt 4 and a nut 5;
after the polymer composite material is formed and solidified, the bearing position repairing tool is dismounted, and the polymer composite material remained on the left half mould 2 and the right half mould 3 is cleaned;
and fifthly, polishing the stub bar of the polymer composite material remained on the stepped shaft 1 until the requirement is met.
Although the invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. A bearing position repairing tool is used for repairing a bearing position (104) worn by a stepped shaft (1), and is characterized in that the stepped shaft (1) comprises a first shaft section (101), a second shaft section (102) and a third shaft section (103), the diameter of the first shaft section (101) is smaller than that of the second shaft section (102), the diameter of the second shaft section (102) is smaller than that of the third shaft section (103), and the bearing position (104) is arranged at a position, close to the third shaft section (103), of the second shaft section (102);
the bearing position repairing tool comprises a left half die (2) and a right half die (3), wherein a left cavity matched with the stepped shaft (1) is formed in one side, close to the right half die (3), of the left half die (2), and a right cavity matched with the stepped shaft (1) is formed in one side, close to the left half die (2), of the right half die (3);
the lower end of the left half die (2) is hinged with the lower end of the right half die (3), and the upper end of the left half die (2) is detachably and fixedly connected with the upper end of the right half die (3).
2. The tool for repairing the bearing position according to claim 1, wherein a first through hole (201) is formed in the upper end of the left half mold (2), a second through hole (301) is formed in the upper end of the right half mold (3), when the left half mold (2) and the right half mold (3) are closed, the central axis of the first through hole (201) is collinear with the central axis of the second through hole (301), and the left half mold (2) and the right half mold (3) are connected with a nut (5) through a fixed connection bolt (4).
3. The tool for repairing the bearing position according to claim 1, wherein a first hinge hole (202) is formed in the lower end of the left half mold (2), a second hinge hole (302) is formed in the lower end of the right half mold (3), and the lower ends of the left half mold (2) and the right half mold (3) are connected with a nut (5) through a hinge bolt (6).
4. The tool for repairing the bearing position according to claim 1, wherein the length of the left half die (2) and the right half die (3) along the central axis direction of the stepped shaft (1) is greater than that of the second shaft section (102), and tool steps (203) matched with shaft steps between the first shaft section (101) and the second shaft section (102) are arranged in the left half die (2) and the right half die (3).
5. The tool for repairing the bearing position according to claim 1, wherein a left discharge groove (204) is formed in the joint surface of the left half mold (2), the opening size of the left discharge groove (204) at the end close to the axial line is large, and the opening size of the left half mold at the end close to the axial line is small;
and a right discharge chute (303) matched with the left discharge chute (204) is arranged on the joint surface of the right half die (3).
6. The tool for repairing a bearing position according to claim 5, wherein the width dimension of the left discharging groove (204) is larger than the depth dimension, and the width dimension of the right discharging groove (303) is larger than the depth dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922308056.4U CN211518557U (en) | 2019-12-20 | 2019-12-20 | Bearing position repairing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922308056.4U CN211518557U (en) | 2019-12-20 | 2019-12-20 | Bearing position repairing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211518557U true CN211518557U (en) | 2020-09-18 |
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ID=72446116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922308056.4U Active CN211518557U (en) | 2019-12-20 | 2019-12-20 | Bearing position repairing tool |
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| Country | Link |
|---|---|
| CN (1) | CN211518557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441667A (en) * | 2021-06-17 | 2021-09-28 | 太原重工股份有限公司 | Method for repairing step shaft forging by using hydraulic press |
-
2019
- 2019-12-20 CN CN201922308056.4U patent/CN211518557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441667A (en) * | 2021-06-17 | 2021-09-28 | 太原重工股份有限公司 | Method for repairing step shaft forging by using hydraulic press |
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