CN211517345U - Deep hole interference fit piston pull-out clamp - Google Patents
Deep hole interference fit piston pull-out clamp Download PDFInfo
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- CN211517345U CN211517345U CN201921873306.2U CN201921873306U CN211517345U CN 211517345 U CN211517345 U CN 211517345U CN 201921873306 U CN201921873306 U CN 201921873306U CN 211517345 U CN211517345 U CN 211517345U
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- adjusting screw
- piston
- screw rod
- interference fit
- hole
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Abstract
The utility model provides a deep hole interference fit piston pull-out fixture, which consists of a rotating handle, an adjusting screw rod and a guide ring; the rotary handle is provided with an axial threaded hole, and trapezoidal threads are arranged inside the axial threaded hole; the two ends of the adjusting screw rod are provided with external threads, one end of the adjusting screw rod is provided with a trapezoidal thread and can be matched with the axial threaded hole of the rotating handle, and the other end of the adjusting screw rod is provided with an external thread which can be matched with the axial threaded hole of the deep hole interference fit piston; the guide ring is provided with an axial step through hole; the large-aperture section is provided with internal threads and can be matched with external threads at the end part of the piston rod where the piston is in interference fit with the deep hole; the aperture of the small aperture section is larger than the diameter of the adjusting screw rod. The utility model is simple in operation convenient, the degree of difficulty when having reduced the deep hole piston and decomposing has practiced thrift the repair expense, has improved work efficiency greatly.
Description
Technical Field
The utility model relates to a structural design field specifically is a deep hole interference fit piston pull-out anchor clamps for decompose the piston of the inside interference fit department of piston rod deep hole and pull out.
Background
In some piston rod products, the piston in the piston rod is in interference fit with the inner wall of the piston rod, the piston is positioned at the deep hole, and two sealing pieces are arranged on the piston, so that the piston is difficult to pull out during decomposition and is not easy to decompose. In the past, a conventional tool is adopted, and the whole piston rod is scrapped because a deep-hole piston cannot be pulled out, so that the repair cost is high.
Disclosure of Invention
The utility model aims at providing a decomposition that can be quick is in the deep hole and is interference fit's piston, makes it and the deep hole interference fit piston pull-out anchor clamps of piston rod separation, is convenient for carry out the repair of each spare part.
The technical scheme of the utility model is that:
the deep hole interference fit piston pull-out clamp is characterized in that: consists of a rotating handle, an adjusting screw rod and a guide ring;
the rotary handle is provided with an axial threaded hole, and trapezoidal threads are arranged in the axial threaded hole;
the two ends of the adjusting screw rod are provided with external threads, one end of the adjusting screw rod is provided with a trapezoidal thread and can be matched with the axial threaded hole of the rotating handle, and the other end of the adjusting screw rod is provided with an external thread which can be matched with the axial threaded hole of the deep hole interference fit piston;
the guide ring is provided with an axial step through hole; the large-aperture section is provided with internal threads and can be matched with external threads at the end part of the piston rod where the piston is in interference fit with the deep hole; the aperture of the small aperture section is larger than the diameter of the adjusting screw rod.
Further preferred scheme, a deep hole interference fit piston pull-out anchor clamps, its characterized in that: the upper end of the trapezoidal thread of the adjusting screw is provided with a phi 8 through hole for reversely rotating the adjusting screw.
Advantageous effects
The utility model has universality, and the diameter or length of the adjusting screw rod can be changed for decomposition if the phenomenon similar to interference fit exists in the working process; in order to ensure that the clamp is simple and easy to operate, the guide ring is designed to be of a step through hole structure, in the using process, the guide ring has guide and a cushion block function, and the phenomenon that the end face of the piston rod is damaged due to overlarge pulling force when the piston is pulled out by the rotating handle is prevented.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1: the structure of the utility model is shown schematically;
FIG. 2: the utility model discloses a work schematic.
Wherein: 1. rotating the handle; 2. a guide ring; 3. adjusting the screw rod; 4. trapezoidal threads; 5. fine thread; 6. pulling out the clamp by the deep-hole piston; 7. a piston rod; 8. is pulled by the piston.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative, and not to be construed as limiting the invention.
The deep hole interference fit piston pull-out fixture in the embodiment comprises a rotary handle, an adjusting screw rod and a guide ring;
the rotary handle is provided with an axial threaded hole, trapezoidal threads are arranged in the axial threaded hole, and the rotary handle can be screwed and loosened on the adjusting screw rod; compared with the common thread, the trapezoidal thread has the advantages of good strength, good centering property, good transmission stability and the like.
And the two ends of the adjusting screw rod are provided with external threads, one end of the adjusting screw rod is provided with trapezoidal threads and can be matched with the axial threaded hole of the rotating handle, and the other end of the adjusting screw rod is provided with fine threads and can be matched with the axial threaded hole of the deep hole interference fit piston. A phi 8 through hole is designed at the upper end of the trapezoidal thread of the adjusting screw rod and used for reversely rotating the adjusting screw rod, and the problem that the adjusting screw rod is difficult to separate from the piston due to the fact that the adjusting screw rod is excessively tightly matched with the piston is avoided.
The guide ring is provided with an axial step through hole; the large-aperture section is provided with internal threads and can be matched with external threads at the end part of the piston rod where the piston is in interference fit with the deep hole; the aperture of the small aperture section is larger than the diameter of the adjusting screw rod, and the function of a cushion block is achieved.
When the piston is disassembled, the guide ring is screwed into the thread at the end part of the piston rod, then the adjusting screw rod is sleeved, one end of the adjusting screw rod with the fine thread is screwed into the deep-hole piston, the rotating handle is screwed into the trapezoidal thread of the adjusting screw rod completely, then the rotating handle is rotated continuously, the rotating handle is abutted against the guide ring, and therefore the piston is pulled out from the interference fit position of the inner wall of the piston rod when the pulling force is large enough.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (2)
1. The utility model provides a deep hole interference fit piston pull-out anchor clamps which characterized in that: consists of a rotating handle, an adjusting screw rod and a guide ring;
the rotary handle is provided with an axial threaded hole, and trapezoidal threads are arranged in the axial threaded hole;
the two ends of the adjusting screw rod are provided with external threads, one end of the adjusting screw rod is provided with a trapezoidal thread and can be matched with the axial threaded hole of the rotating handle, and the other end of the adjusting screw rod is provided with an external thread which can be matched with the axial threaded hole of the deep hole interference fit piston;
the guide ring is provided with an axial step through hole; the large-aperture section is provided with internal threads and can be matched with external threads at the end part of the piston rod where the piston is in interference fit with the deep hole; the aperture of the small aperture section is larger than the diameter of the adjusting screw rod.
2. The deep-hole interference fit piston pull-out fixture of claim 1, wherein: the upper end of the trapezoidal thread of the adjusting screw is provided with a phi 8 through hole for reversely rotating the adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921873306.2U CN211517345U (en) | 2019-11-03 | 2019-11-03 | Deep hole interference fit piston pull-out clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921873306.2U CN211517345U (en) | 2019-11-03 | 2019-11-03 | Deep hole interference fit piston pull-out clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211517345U true CN211517345U (en) | 2020-09-18 |
Family
ID=72442758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921873306.2U Active CN211517345U (en) | 2019-11-03 | 2019-11-03 | Deep hole interference fit piston pull-out clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211517345U (en) |
-
2019
- 2019-11-03 CN CN201921873306.2U patent/CN211517345U/en active Active
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