CN214558802U - Nested cover body structure of post alive - Google Patents
Nested cover body structure of post alive Download PDFInfo
- Publication number
- CN214558802U CN214558802U CN202120525882.9U CN202120525882U CN214558802U CN 214558802 U CN214558802 U CN 214558802U CN 202120525882 U CN202120525882 U CN 202120525882U CN 214558802 U CN214558802 U CN 214558802U
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- plunger
- nested
- position supplementing
- post
- nesting
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Abstract
The utility model discloses a nested cover body structure of post alive, nested cover body length equals with the length of post alive, and at least one end at the post both ends of living sets up a countersunk head and mends the position end, and nested interference cup joints on the external diameter of post alive, mends position ring welded connection and mends the position end at the countersunk head of nested, post alive. The utility model discloses nested and post firm in connection alive does not have the deformation in the use, goes up and down in a flexible way, repairs as new as old, long service life.
Description
Technical Field
The utility model relates to a spare part structure of hydraulic prop especially relates to a nested cover body structure of post alive.
Background
In the maintenance process of the hydraulic prop, the outer circle of the suspended movable prop is frequently repaired, so that the repaired movable prop is inconsistent in front and back, the prop is difficult to return, and potential safety hazards exist. In order to solve the problem, the prior art adopts an integral bushing structure, a layer of the surface of the plunger is integrally turned, and then a bushing body is embedded, so that the problem of irregular size is solved, and the effect of repairing the plunger as new is realized. However, we have found that the nested layers and the original cylinder are deformed in motion after being nested with an interference fit, and the deformation is analyzed to be caused between the two nested bodies.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a sleeve body structure with nested live columns.
In order to achieve the above purpose, the utility model adopts the technical proposal that: the sleeve body structure of the movable column nest has the length equal to that of the movable column, at least one of two ends of the movable column is provided with a countersunk head position supplementing end, the nest is sleeved on the outer diameter of the movable column in an interference fit mode, and the position supplementing circular ring is welded to the countersunk head position supplementing end of the nest and the movable column.
The working principle is as follows: the outer diameter of the plunger to be repaired is firstly turned to a nested thickness, then the thickness of a position supplementing ring is reduced at two ends of the plunger, the nested sleeve is sleeved on the outer diameter of the plunger in an interference manner, the sleeved outer diameter is the same as the outer diameter of the plunger before the original repair, and the position supplementing ring is welded and connected at the countersunk position supplementing end of the nested and plunger, so that the nested and plunger are firmly connected, and the problem of deformation caused by the fact that the nested sleeve is directly sleeved on the plunger is solved.
Furthermore, both ends of the plunger are provided with a countersunk head position supplementing end, the position supplementing circular ring is provided with a plurality of welding line grooves, and the positions of the welding line grooves correspond to the nesting and the plunger connecting part.
Further, the weld groove is an arc-shaped groove which is open towards one end of the nest.
Furthermore, a welding position is arranged between the inner ring of the position supplementing circular ring and the inner ring of the plunger.
The beneficial effects of the utility model reside in that: the nesting is firmly connected with the plunger, has no deformation in use, is flexible to lift, is repaired as new, and has long service life.
Drawings
The invention is further explained below with reference to the drawings and the examples.
FIG. 1 is a schematic structural section of the present invention;
fig. 2 is a schematic view of the structure of the position-compensating ring of the present invention.
In the figure: 1. a movable column, 2, nesting, 3, a position supplementing ring, 4, a welding seam groove, 5 and a welding position.
Detailed Description
As shown in figure 1, the sleeve body structure of the plunger nest has the length of the sleeve body of the nest 2 equal to that of the plunger 1, at least one of two ends of the plunger 1 is provided with a countersunk head position supplementing end, the nest 2 is sleeved on the outer diameter of the plunger 1 in an interference fit manner, and the position supplementing circular ring 3 is welded and connected with the countersunk head position supplementing ends of the nest 2 and the plunger 1.
The outer diameter of the plunger to be repaired is firstly lathed to the thickness of a nest 2, then the thickness of a position supplementing ring 3 is reduced at two ends of the plunger 1, the nest 2 is sleeved on the outer diameter of the plunger 1 in an interference manner, the sleeved outer diameter is the same as the outer diameter of the plunger before the original repair, and the position supplementing ring is welded and connected at the countersunk position supplementing end of the nest and the plunger, so that the nest and the plunger are firmly connected, and the problem of deformation caused by the fact that the nest is directly sleeved on the plunger is solved.
The two ends of the plunger 1 are provided with a countersunk head position supplementing end, the position supplementing ring 3 is provided with a plurality of welding seam grooves 4, and the positions of the welding seam grooves 4 correspond to the joints of the embedded sleeve 2 and the plunger 1.
The weld groove 4 is an arc-shaped groove which is opened towards one end of the nesting 2.
And a welding position 5 is arranged between the inner ring of the position supplementing circular ring 3 and the inner ring of the plunger.
Because the nesting 2 is made of stainless steel, the thickness of the nesting 2 is very thin, the nesting 2 is connected with the plunger 1 after being heated, after the two are connected in interference fit, in order to avoid deformation, the filling ring 3 is welded after the temperature is reduced to the room temperature, and is used for connecting the two end faces of the nesting 2 and the plunger 1, and the deformation caused by the dislocation of the two end faces in the lifting process is solved. The reason why the weld groove 4 is open is that because the nest 2 is thin, direct welding can produce weld thickness, as well as weld flaws. The welding seam groove 4 is adopted, one section is welded, and the required thickness is fixed by the position supplementing ring 3, so that polishing is facilitated, and welding flaws are not easy to generate.
The utility model discloses nested and post firm in connection alive does not have the deformation in the use, goes up and down in a flexible way, repairs as new as old, long service life.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (3)
1. A nested body structure of post alive nest which characterized in that: the length of the nested sleeve body is equal to that of the plunger, at least one end of the two ends of the plunger is provided with a countersunk head position supplementing end, the nesting is sleeved on the outer diameter of the plunger in an interference manner, and the position supplementing ring is welded and connected with the countersunk head position supplementing end of the nesting and plunger; the two ends of the movable column are provided with a countersunk head position supplementing end, the position supplementing circular ring is provided with a plurality of welding line grooves, and the positions of the welding line grooves correspond to the nesting and the movable column connecting part.
2. The plunger nest sleeve structure of claim 1, wherein: the welding seam groove is an arc-shaped groove which is opened towards one end of the nesting.
3. The plunger nest sleeve structure of claim 1, wherein: and a welding position is arranged between the inner ring of the position supplementing ring and the inner ring of the plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120525882.9U CN214558802U (en) | 2021-03-12 | 2021-03-12 | Nested cover body structure of post alive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120525882.9U CN214558802U (en) | 2021-03-12 | 2021-03-12 | Nested cover body structure of post alive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214558802U true CN214558802U (en) | 2021-11-02 |
Family
ID=78319579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120525882.9U Active CN214558802U (en) | 2021-03-12 | 2021-03-12 | Nested cover body structure of post alive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214558802U (en) |
-
2021
- 2021-03-12 CN CN202120525882.9U patent/CN214558802U/en active Active
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