CN205244103U - Adjustable transmission shaft - Google Patents
Adjustable transmission shaft Download PDFInfo
- Publication number
- CN205244103U CN205244103U CN201521066477.6U CN201521066477U CN205244103U CN 205244103 U CN205244103 U CN 205244103U CN 201521066477 U CN201521066477 U CN 201521066477U CN 205244103 U CN205244103 U CN 205244103U
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- transmission shaft
- screw thread
- water cap
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Abstract
The utility model relates to an oil screw rod drilling tool technical field especially relates to an adjustable transmission shaft, including disjunctor water cap and TC bearing, be equipped with screw thread stress groove between the terminal surface of disjunctor water cap and TC bearing, screw thread stress groove with be equipped with screw thread adjusting nut between the disjunctor water cap, screw thread adjusting nut with disjunctor water cap threaded connection. The utility model has the advantages of simple structure, the utility model discloses it can directly be used for the screw thread to adjust a screw thread adjusting nut to have designed one kind on traditional transmission shaft for terminal surface cooperation in transmission shaft end face and the disjunctor water cap makes and answers the force to move down to avoid screw stress groove, thereby avoids the weak department of transmission shaft, thereby improves transmission shaft life and improved work efficiency, the utility model discloses but wide application in numerous fields of screw rod trade.
Description
Technical field
The utility model relates to oil helicoid hydraulic motor technical field, relates in particular to a kind of adjustable transmission shaft.
Background technology
In drilling well production process; in order to increase the safety coefficient of power transmission shaft in shaft bottom work; avoid because stress is concentrated generation fracture; the structure of power transmission shaft is between disjunctor water cap and upper TC bearing face, to add a screw thread stress groove at present; to reduce screw thread stress; because stress groove is between disjunctor water cap end face and TC bearing face, in the time being threaded, power transmission shaft stress groove produces corresponding pulling force, uses the later stage often can cause fatigue of materials phenomenon of rupture to product. Certainly will affect to a certain extent operating efficiency, and product quality, management difficulty and production cost increased.
Utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of adjustable transmission shaft is provided, simple in structure, improves power transmission shaft service life.
The utility model for achieving the above object, by the following technical solutions: a kind of adjustable transmission shaft, it is characterized in that: comprise disjunctor water cap and TC bearing, between described disjunctor water cap and the end face of TC bearing, be provided with screw thread stress groove, between described screw thread stress groove and described disjunctor water cap, be provided with threaded adjusting nut, described threaded adjusting nut is connected with described disjunctor water cap thread.
Preferably, between described threaded adjusting nut and the end face of described TC bearing, be provided with adjusting pad.
The beneficial effects of the utility model are: the utility model is simple in structure, the utility model has designed one on traditional power transmission shaft can be directly used in a kind of threaded adjusting nut of threaded adjusting, transmission shaft end surface is coordinated with disjunctor water cap inner face, stress point is moved down and avoid screw thread stress groove, thereby avoid power transmission shaft weakness, thereby improve power transmission shaft and improved operating efficiency service life, the utility model can be widely used in the various fields of screw rod industry.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Describe detailed description of the invention of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment. As shown in Figure 1, a kind of adjustable transmission shaft, comprise disjunctor water cap 1 and TC bearing 2, between described disjunctor water cap and the end face of TC bearing, be provided with screw thread stress groove 3, between described screw thread stress groove and described disjunctor water cap, be provided with threaded adjusting nut 4, described threaded adjusting nut is connected with described disjunctor water cap thread. Between described threaded adjusting nut and the end face of described TC bearing, be provided with adjusting pad 5. This part design, with threaded adjusting power transmission shaft and stress groove position, moves down stress groove and avoids power transmission shaft weak location. The technical solution of the utility model is on conventional power transmission shaft parts, to increase design threaded adjusting structure. By increasing threaded adjusting mode, change stress concentrated position, make to have improved production efficiency in the time that helicoid hydraulic motor uses, save production cost.
The utility model is simple in structure, the utility model has designed one on traditional power transmission shaft can be directly used in a kind of threaded adjusting nut of threaded adjusting, transmission shaft end surface is coordinated with disjunctor water cap inner face, stress point is moved down and avoid screw thread stress groove, thereby avoid power transmission shaft weakness, thereby improve power transmission shaft and improved operating efficiency service life, the utility model can be widely used in the various fields of screw rod industry.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. an adjustable transmission shaft, it is characterized in that: comprise disjunctor water cap and TC bearing, between described disjunctor water cap and the end face of TC bearing, be provided with screw thread stress groove, between described screw thread stress groove and described disjunctor water cap, be provided with threaded adjusting nut, described threaded adjusting nut is connected with described disjunctor water cap thread.
2. adjustable transmission shaft according to claim 1, is characterized in that: between described threaded adjusting nut and the end face of described TC bearing, be provided with adjusting pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521066477.6U CN205244103U (en) | 2015-12-18 | 2015-12-18 | Adjustable transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521066477.6U CN205244103U (en) | 2015-12-18 | 2015-12-18 | Adjustable transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244103U true CN205244103U (en) | 2016-05-18 |
Family
ID=55943188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521066477.6U Active CN205244103U (en) | 2015-12-18 | 2015-12-18 | Adjustable transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244103U (en) |
-
2015
- 2015-12-18 CN CN201521066477.6U patent/CN205244103U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |