CN204371881U - One can self-lubricated screw - Google Patents
One can self-lubricated screw Download PDFInfo
- Publication number
- CN204371881U CN204371881U CN201420847213.3U CN201420847213U CN204371881U CN 204371881 U CN204371881 U CN 204371881U CN 201420847213 U CN201420847213 U CN 201420847213U CN 204371881 U CN204371881 U CN 204371881U
- Authority
- CN
- China
- Prior art keywords
- stud
- screw
- suction cover
- oil suction
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
One can self-lubricated screw, and comprise stud and be located at the screw terminal on stud top, described stud comprises upper and lower part and middle part, and stud upper diameter equals stud lower diameter, and stud mid diameter is less than stud upper and lower part; Thread is surrounded with outside described stud upper and lower part; In the middle part of described stud, overcoat has oil suction cover; Described oil suction cover is oil absorption material; Described oil suction cover external diameter is equal to or less than the external diameter of thread, and oil suction cover external diameter is greater than stud upper and lower part diameter.Of the present utility modelly can not only make the internal thread perfect lubrication of adaptive screw installed with it by self-lubricated screw, and the oil mass of lubricant oil can not be wasted.
Description
Technical field
The utility model relates to a kind of screw.
Background technique
The internal thread of the screw on part is all come by screw tap tapping, therefore more or less some burr or burr can be there is in internal thread, and the existence of these burr or burr easily causes screw and screw internal thread adaptation to produce resistance when rotating, screw assembling work is made to be difficult to complete smoothly, in order to overcome the above problems, most of personnel adopt and cover with paint or varnish in the brushing of screw port position, lubricant oil is made to drop onto in screw, the internal thread of lubrication screw, thus resistance when reducing adaptive rotation, but this lubricating system is not only difficult to internal thread perfect lubrication, and waste oil mass, and unnecessary grease accumulation is bottom screw, be easy to cause screw inner space to form negative pressure when screw and screw adaptation rotate, thus cause screw to be difficult to more rotate fixing in depths toward screw, increase the difficulty that assembling fixed by screw to a certain extent.
Summary of the invention
The technical problems to be solved in the utility model provides one can self-lubricated screw, and it can not only make the internal thread perfect lubrication of adaptive screw installed with it, and can not waste the oil mass of lubricant oil.
The technical scheme in the invention for solving the above technical problem is:
The open one of the utility model can self-lubricated screw, comprise stud and be located at the screw terminal on stud top, it is characterized in that: described stud comprises upper and lower part and middle part, stud upper diameter equals stud lower diameter, and stud mid diameter is less than stud upper and lower part; Thread is surrounded with outside described stud upper and lower part; In the middle part of described stud, overcoat has oil suction cover; Described oil suction cover is oil absorption material; Described oil suction cover external diameter is equal to or less than the external diameter of thread, and oil suction cover external diameter is greater than stud upper and lower part diameter.
Described oil suction cover is wool felt.
An oil storage tank is provided with in described stud.
The beneficial effects of the utility model are:
Compared with prior art, what adopt the utility model structure can have oil suction cover at stud medium position overcoat by self-lubricated screw, therefore after stud bottom enters screw completely, oil suction cover starts to coordinate with the internal thread in screw, when oil suction cover rotates along internal thread, oil suction cover is adsorbed on interior lubricant oil at first and is extruded from oil suction cover side, invest interior threaded surface, and the lubricant oil that penetrates of oil suction cover lower surface drop onto outside stud bottom around thread, and when stud bottom thread and screw internal thread adaptation rotate, the lubricant oil be dropped on the thread of stud bottom finally fills thread surface along thread lines under the effect of rotating force, make to be lubricated between the thread of stud bottom and screw internal thread lower part, and move down along with oil suction cover and internal thread constantly rotate, the lubricant oil that oil suction cover side squeezes out constantly is coated in screw internal thread upper part outer surface, therefore when adaptive rotation occurs for the thread on stud top and screw internal thread upper part, the lubricant oil being applied to the outer surface of screw internal thread upper part makes to be lubricated fully between the two, make both adaptive rotary courses more smooth, because oil suction cover is positioned at the middle part of stud, therefore the lubricant oil be squeezed out in oil suction cover can be effectively utilized, too much lubricant oil can not be there is to be dropped in screw and situation about accumulating in bottom it.
Compared with prior art, what adopt the utility model structure can be provided with an oil storage tank in the stud of self-lubricated screw, even if when therefore having unnecessary lubricant oil to be present in screw inner bottom part, lubricant oil also can enter oil storage tank, and the existence of oil storage tank is equivalent to the space expanded bottom screw, therefore there will not be because too much grease accumulation causes screw bottom space to occur the situation of negative pressure, and some lubricant oil can store by the existence of oil storage tank, and constantly penetrate into the effect played between thread and internal thread and again lubricate along with the time.
Accompanying drawing explanation
Fig. 1 is that the utility model can the structural representation of self-lubricated screw.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Refer to Fig. 1, the utility model provides one can self-lubricated screw, and comprise stud and be located at the screw terminal 1 on stud top, described stud comprises upper and lower part 2,3 and middle part 4, stud top 2 diameter equals stud bottom 3 diameter, and in the middle part of stud, 4 diameters are less than stud upper and lower part 2,3; Thread 5 is surrounded with outside described stud upper and lower part 2,3; In the middle part of described stud, 4 overcoats have oil suction to overlap 6; Described oil suction cover 6 is oil absorption material; The external diameter that 6 external diameters are equal to or less than thread 5 is overlapped in described oil suction, and oil suction is overlapped 6 external diameters and is greater than stud upper and lower part 2,3 diameter.
The utility model has oil suction to overlap 6 at stud medium position overcoat, therefore after stud bottom 3 enters screw completely, oil suction cover 6 starts to coordinate with the internal thread in screw, when oil suction cover 6 rotates along internal thread, oil suction cover 6 is adsorbed on interior lubricant oil at first and overlaps 6 sides from oil suction and be extruded, invest interior threaded surface, and oil suction overlap lubricant oil that 6 lower surfaces penetrate drop onto stud bottom 3 outer around thread 5, and when stud bottom 3 thread 5 rotates with screw internal thread adaptation, the lubricant oil be dropped on stud bottom 3 thread 5 finally fills thread surface along thread lines under the effect of rotating force, make to be lubricated between the thread 5 of stud bottom 3 and screw internal thread lower part, and move down along with oil suction cover 6 and internal thread constantly rotate, oil suction is overlapped the lubricant oil that 6 sides squeeze out and is constantly coated in screw internal thread upper part outer surface, therefore when the thread 5 on stud top 2, with screw internal thread upper part, adaptive rotation occurs, the lubricant oil being applied to the outer surface of screw internal thread upper part makes to be lubricated fully between the two, make both adaptive rotary courses more smooth, because oil suction cover 6 is positioned at the middle part 4 of stud, therefore the lubricant oil be squeezed out in oil suction cover 6 can be effectively utilized, too much lubricant oil can not be there is to be dropped in screw and situation about accumulating in bottom it.
Described oil suction cover 6 is wool felt, and wool felt not only can oil suction, and made of soft, tough and tensile, and has good reducibility, not yielding, and therefore material is that the oil suction cover of wool felt can use repeatedly, just changes after once assembling without the need to screw.
An oil storage tank 7 is provided with in described stud, even if when therefore having unnecessary lubricant oil to be present in screw inner bottom part, lubricant oil also can enter oil storage tank 7, and the existence of oil storage tank 7 is equivalent to the space expanded bottom screw, therefore there will not be because too much grease accumulation causes screw bottom space to occur the situation of negative pressure, and some lubricant oil can store by the existence of oil storage tank 7, and constantly penetrate into the effect played between thread 5 and internal thread and again lubricate along with the time.
Claims (3)
1. can a self-lubricated screw, comprise stud and be located at the screw terminal on stud top, it is characterized in that: described stud comprises upper and lower part and middle part, stud upper diameter equals stud lower diameter, and stud mid diameter is less than stud upper and lower part; Thread is surrounded with outside described stud upper and lower part; In the middle part of described stud, overcoat has oil suction cover; Described oil suction cover is oil absorption material; Described oil suction cover external diameter is equal to or less than the external diameter of thread, and oil suction cover external diameter is greater than stud upper and lower part diameter.
2. one according to claim 1 can self-lubricated screw, it is characterized in that: described oil suction cover is wool felt.
3. one according to claim 1 can self-lubricated screw, it is characterized in that: be provided with an oil storage tank in described stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847213.3U CN204371881U (en) | 2014-12-29 | 2014-12-29 | One can self-lubricated screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847213.3U CN204371881U (en) | 2014-12-29 | 2014-12-29 | One can self-lubricated screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371881U true CN204371881U (en) | 2015-06-03 |
Family
ID=53328103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420847213.3U Expired - Fee Related CN204371881U (en) | 2014-12-29 | 2014-12-29 | One can self-lubricated screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477065A (en) * | 2017-07-31 | 2017-12-15 | 太仓市众翔精密五金有限公司 | A kind of wear-resistant stud of resistance to greasy dirt |
-
2014
- 2014-12-29 CN CN201420847213.3U patent/CN204371881U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477065A (en) * | 2017-07-31 | 2017-12-15 | 太仓市众翔精密五金有限公司 | A kind of wear-resistant stud of resistance to greasy dirt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |