CN204114064U - A kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure - Google Patents
A kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure Download PDFInfo
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- CN204114064U CN204114064U CN201420385124.1U CN201420385124U CN204114064U CN 204114064 U CN204114064 U CN 204114064U CN 201420385124 U CN201420385124 U CN 201420385124U CN 204114064 U CN204114064 U CN 204114064U
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- worm gear
- uniform pitch
- internal thread
- type female
- female thread
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Abstract
The utility model relates to a kind of self-elevating drilling platform worm gear, and particularly a kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure.The worm gear internal thread uniform pitch of this device, thickness at root of tooth successively decreases from top to bottom successively.The utility model achieves and decreases region of stress concentration, makes all contact flank of thread uniform force, improves the stress of worm gear internal thread, extend the working life of worm gear, reduce cost of production.Overcome existing worm gear inner threaded surface discontinuity, worm gear internal thread is easily by the deficiency of conquassation.
Description
Technical field:
The utility model relates to a kind of self-elevating drilling platform worm gear, and particularly a kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure.
Background technique:
The existing worm gear for offshore self-elevating drilling platform locking device and screw mandrel, the internal thread every layer transverse tooth thickness of worm gear is all equal, the stress that between Screw of Worm Gear, screw thread occurs when bearing hull loads concentrates situation, make the internal thread first layer of worm gear greatly stressed, all contact flank of thread discontinuity, the internal thread of worm gear, easily by conquassation, causes a whole set of fastening system to lose efficacy because worm gear damages, reduces the working life of worm gear.
Model utility content:
The technical problems to be solved in the utility model is to provide a kind of uniform pitch and becomes transverse tooth thickness worm gear bearing-type female thread structure, the arrangement achieves and decrease region of stress concentration, make all contact flank of thread uniform force, improve the stress of worm gear internal thread, extend the working life of worm gear, reduce cost of production.Overcome existing worm gear inner threaded surface discontinuity, worm gear internal thread is easily by the deficiency of conquassation.
Technical solution adopted in the utility model is: a kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure, and this worm gear internal thread uniform pitch, thickness at root of tooth successively decreases from top to bottom successively.
The beneficial effects of the utility model are: the mode that the utility model successively decreases from top to bottom successively owing to have employed thickness at root of tooth, thus there is the effect decreasing region of stress concentration, make all contact flank of thread uniform force, improve the stress of worm gear internal thread, extend the working life of worm gear, reduce cost of production.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Embodiment:
As shown in Figure 1, a kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure, and this worm gear internal thread uniform pitch, thickness at root of tooth successively decreases from top to bottom successively.
Be understandable that, above about specific descriptions of the present utility model, the technological scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (1)
1. uniform pitch becomes a transverse tooth thickness worm gear bearing-type female thread structure, it is characterized in that: this worm gear internal thread uniform pitch, thickness at root of tooth successively decreases from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385124.1U CN204114064U (en) | 2014-07-11 | 2014-07-11 | A kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420385124.1U CN204114064U (en) | 2014-07-11 | 2014-07-11 | A kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114064U true CN204114064U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420385124.1U Active CN204114064U (en) | 2014-07-11 | 2014-07-11 | A kind of uniform pitch becomes transverse tooth thickness worm gear bearing-type female thread structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113728170A (en) * | 2019-06-04 | 2021-11-30 | 舍弗勒技术股份两合公司 | Connecting element with a threaded connecting part |
-
2014
- 2014-07-11 CN CN201420385124.1U patent/CN204114064U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113728170A (en) * | 2019-06-04 | 2021-11-30 | 舍弗勒技术股份两合公司 | Connecting element with a threaded connecting part |
| CN113728170B (en) * | 2019-06-04 | 2024-03-01 | 舍弗勒技术股份两合公司 | Connecting element with threaded connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |