CN101672320A - Rotating shaft structure and torsion adjusting method thereof - Google Patents
Rotating shaft structure and torsion adjusting method thereof Download PDFInfo
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- CN101672320A CN101672320A CN200810213485A CN200810213485A CN101672320A CN 101672320 A CN101672320 A CN 101672320A CN 200810213485 A CN200810213485 A CN 200810213485A CN 200810213485 A CN200810213485 A CN 200810213485A CN 101672320 A CN101672320 A CN 101672320A
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Abstract
The invention discloses a rotating shaft structure and a torsion adjusting method thereof. The rotating shaft structure comprises a first shaft piece, a second shaft piece and an adjusting element. The first shaft piece is provided with a convex column. The second shaft piece is provided with a groove into which the convex column of the first shaft piece is inserted. The inside of the convex column of the first shaft piece is provided with a pore canal, and an opening of the pore canal is positioned on the outer surface of the convex column. The bottom of the groove of the second shaft piece is provided with a through hole. After the convex column of the first shaft piece is placed into the groove of the second shaft piece, the through hole of the groove corresponds to the opening of the pore canal. The adjusting element is provided with a rod-shaped part which is suitable for passing through the through hole to be inserted into the pore canal. By moving the adjusting element in the through hole and the pore canal, the size of the friction surface between the rod-shaped part of the adjusting element and the pore canal is changed to adjust the torsion of the rotating shaft structure.
Description
[technical field]
The invention relates to a kind of turning shaft structure and torsion adjusting method thereof, particularly about a kind of turning shaft structure and torsion adjusting method thereof that is used for notebook computer or small-size display.
[background technique]
In notebook computer and small-size display, regular meeting uses the rotating shaft of in-line, and utilizes rotating shaft to produce the weight that torsion supports small-size display.
Please refer to Fig. 1, existing in-line rotating shaft 100 has public axle 120 and one a female axle 140.Public axle 120 has an outstanding cylindrical structure 121.Respectively there is a groove 122 both sides of cylindrical structure 121.Female axle 140 has a cylindric structure 141.The diameter D of the cylindrical structure 121 of public axle 120 is slightly larger than the inner diameter d of the cylindric structure 141 of female axle 140, and the surface of cylindrical structure 121 and cylindric structure 141 is all roughened surface.
Please refer to Fig. 2, when the cylindrical structure 121 of public axle 120 inserts in the cylindric structure 141 of female axle 140, because the slightly larger in diameter of cylindrical structure 121 is in the internal diameter of cylindric structure 141, so public axle 120 can link closely with female axle 140, and therebetween have kinetic force of friction and stiction, be called interference fit.The surface of contact of cylindrical structure 121 and cylindric structure 141 can mutual break-in in rotating to the process of tight binding and produce wearing and tearing, and the waste that wearing and tearing produce can be stored in the groove 122 of public axle 120.After the tight binding of public affairs axle 120 and female axle 140 made the roughened surface of cylindrical structure 121 and cylindric structure 141 form stable surface roughness, rotating shaft 100 just can be rotated under the torsion stable status.
Because the torque magnitude of rotating shaft 100 depends on the frictional force of rubbing surface 126 generations and the size of interference fit, so must change the area of rubbing surface 126, for example change the size of the inner diameter d of the diameter D of cylindrical structure 121 and cylindric structure 141, or the change length L, could change the torsion of rotating shaft 100.This expression then can't be regulated the torsion of rotating shaft 100 if do not change the size of public axle 120 and female axle 140, so can reduce the versatility of this in-line rotating shaft 100.And,, produce yield low (about about 15%) because the precision of turning processing does not often reach the size setting value of public axle 120 or female axle 140.
[summary of the invention]
The invention reside in provides a kind of turning shaft structure and torsion adjusting method thereof, and the size that need not change spare parts such as the public axle of turning shaft structure or female axle can be adjusted its torsion, and can promote the production yield.
Other purposes of the present invention and advantage can be further understood from the disclosed technical characteristics of the present invention.
For reaching one of above-mentioned or partly or all purposes or other purposes, the invention provides a kind of turning shaft structure, it comprises that one first part, one second part and adjust element.First part has a projection, and the inside of projection has a duct, and the duct provides an opening, and opening is positioned at the outer surface of projection.Second part has a groove, and groove can insert for the projection of first part, and the bottom of groove has a through hole.Adjust element and have a stem.Insert the groove of second part at the projection of first part after, the through hole of groove is corresponding to the opening in duct, makes the stem of adjusting element be suitable for passing through hole and inserts in the duct.
Preferably, the projection of first part is to have at least two arc cylinders, and the outer surface of projection forms several ring-type chases.The arc cylinder is to dispose around the duct, and per two adjacent arc cylinders between have a gap.
In addition, the outer surface of the projection of first part is provided with a protuberance, and the inwall of the groove of second part is provided with a depressed part.When the projection of first part was inserted in the groove of second part, protuberance snapped in the depressed part.The opening in the duct of first part is a circular port, and it forms interference fit with the stem of adjusting element.
Preferably, adjust element and also comprise a screwing part, its surface has a thread.The stem of adjusting element has a fixed end and a free end, and its fixed end is to connect screwing part, and its free end has a conical surface.The through hole of second part is to be a screw, cooperating this thread, and locks for the screwing part of adjusting element.
One embodiment of the invention provide a kind of torsion adjusting method of turning shaft structure, are in order to adjust the torsion of above-mentioned turning shaft structure.After the projection of first part inserted the groove of second part, the through hole of groove was the duct that is communicated with projection.Can adopt this moment following steps to implement the torsion adjustment of turning shaft structure.At first, provide a torsional test device, a fixed jig and to rotate tool.Then, fixed jig is inserted in the torsional test device, first part inserted in the fixed jig, and rotate second part, and read the torque value of a correspondence from the torsional test device to rotate tool.
What deserves to be mentioned is that present embodiment passes through hole with the adjustment element and inserts in the duct, and moves and adjust element, to adjust torque value in through hole and duct.Torque value be adjusted to one need numerical value after, the fixing element of adjusting is in through hole.
Above-mentioned torsion adjusting method, preferably, the surface of screwing part has a groove.The step of adjusting torque value then comprises: insert with a spanner in the groove of screwing part, and screwing part is rotated in the through hole, and adjust the rotating cycle of the thread of screwing part further, to move the stem that is arranged in the duct.
Preferably, fixing to adjust the mode of element in through hole be screwing part can be welded in the through hole, or smear an envelope and agent in through hole, screwing part is screwed in through hole after, leave standstill a period of time to make that to seal agent dry.
Turning shaft structure of the present invention and torsion adjusting method thereof, after first part and second part made up, adjusting element can screw in by the through hole of second part in the duct of first part.In adjusting the process in duct that element is threaded into first part, the rubbing surface of adjusting between element and the duct increases gradually, and the rubbing surface between projection and the groove also increases gradually, and the torsion of whole turning shaft structure is increased, otherwise then torsion reduces, and reaches the purpose of adjusting torsion.
[description of drawings]
Fig. 1 is the decomposition texture schematic representation of existing yi word pattern rotating shaft.
Fig. 2 is the composite structure schematic representation of existing yi word pattern rotating shaft.
Fig. 3 A is the decomposing schematic representation of the turning shaft structure of first embodiment of the invention.
Fig. 3 B is the decomposing schematic representation of the turning shaft structure of second embodiment of the invention.
Fig. 4 is the generalized section according to the turning shaft structure after the combination of second embodiment of the invention.
Fig. 5 is the schematic surface according to the axle part of the turning shaft structure of second embodiment of the invention.
Fig. 6 and Fig. 7 are the torsion adjustment action schematic representation of the turning shaft structure of one embodiment of the invention.
In-line rotating shaft 100 rubbing surfaces 126
121 first parts 220 of cylindrical structure
Through hole 244 screwing parts 362
Adjust element 260 threads 363
Turning shaft structure 300 stems 364
Gap 323 fixing parts 420
Duct 324 fixed jigs 500
Arc chase 325a, 325b jack 520
Groove 342 spanners 700
Screw 344
[embodiment]
About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to a graphic preferred embodiment, can clearly present.The direction term of being mentioned in following examples, for example: upper and lower, left and right, front or rear etc. only are the directions with reference to annexed drawings.Therefore, the direction term of use is to be used for illustrating not to be to be used for limiting the present invention.
Please refer to Fig. 3 A, a turning shaft structure 200 comprises that one first part 220, one second part 240 and adjust element 260.First part 220 has 222, the second parts 240 of a projection and has a groove 242, and it can insert for the projection 222 of first part 220.
What deserves to be mentioned is that the inside of the projection 222 of first part 220 has a duct 224, an end in duct 224 be have one be positioned at projection 222 outer surface open 226.The bottom of the groove 242 of second part 240 has a through hole 244.The duct 224 of projection 222 inside and to open 226 be to be positioned on the axis of rotation of first part 220, and the through hole 244 of second part 240 is to be positioned on the axis of rotation of second part 240.Therefore, when the projection 222 of first part 220 is inserted the groove 242 of second part 240, the axis of rotation of first part 220 overlaps with the axis of rotation of second part 240, diaxon spare 220,240 axis of rotation is shown in dotted line A-A, this moment, the through hole 244 of groove 242 was openings 226 corresponding to duct 224, made to adjust that element 260 is suitable for passing through hole 244 and insert in the duct 224.
Preferably, the opening 226 in the duct 224 of first part 220 can be a circular port, and it forms interference fit with adjustment element 260.In present embodiment, interference fit that is first part 220 and second part 240 can link closely, and therebetween have kinetic force of friction and stiction.So can insert in the ducts 224, and the diameter support of projection 222 is big, make groove 242 driving fits of itself and second part 240 by adjusting element 260.
Please refer to Fig. 3 B, in the turning shaft structure 300 of a preferred embodiment, the projection 322 of first part 320 can have at least two arc cylinder 322a, 322b, these arc cylinders 322a, 322b disposes around duct 324, and per two adjacent arc cylinder 322a, has a gap 323 between the 322b.Shown in Fig. 3 B, each arc cylinder 322a, 322b has the two halves arc surface, lays respectively at its inboard and the outside, and the semicircle cambered surface in its outside is provided with arc chase 325a, 325b.As two arc cylinder 322a, when 322b formed a complete circular projection 322, its inboard two halves arc surface then formed the inwall in duct 324, two arc chase 325a on the two halves arc surface in its outside, and 325b then forms a ring-type chase.Subsidiary one what carry is that the ring-type chase also can be located at the outer surface of the projection 222 of Fig. 3 A.
In the embodiment shown in Fig. 3 B, the assembling process of turning shaft structure 300 is as follows.Earlier the projection 322 of first part 320 is inserted the groove 342 of second part 340, this moment, the duct 324 of projection 322 was the screws 344 that can be communicated with second part 340.The stem 364 that to adjust element 360 again passes screw 344 and enters in the duct 324, and the screwing part 362 that then will adjust element 360 is fixed in the screw 344.
Because per two adjacent arc cylinder 322a have gap 323 between the 322b, thus when the projection 322 of first part 320 inserts the groove 342 of second part 340, these arc cylinders 322a, 322b can come closer, and makes projection 322 distortion.Utilize the distortion of projection 322, make first part 320 be assembled to second part 340 easily.When adjusting element 360 and insert ducts 324, both form interference fit, so these arc cylinders 322a, and 322b can be adjusted element 360 and outwards strut and near groove 342, first part 320 and second part 340 are more closely made up.
Please refer to Fig. 4, the projection 322 of first part 320 is provided with a protuberance 328, and the inwall of the groove 342 of second part 340 is provided with a depressed part 348.When the projection 322 of first part 320 was inserted the groove 342 of second part 340, protuberance 328 snapped in the depressed part 348, thereby can prevent that first part 320 from withdrawing from second part 340 easily when turning shaft structure 300 is rotated.
Please refer to Fig. 5, and, in the prior art,, then must change the size of the rubbing surface 126 of public axle 120 if will change the torsion of yi word pattern rotating shaft 100 simultaneously with reference to Fig. 1.For example, if will make the torsion of yi word pattern rotating shaft 100 become big, then need the diameter D or the length L of public axle 120 are become big, to increase rubbing surface 126; Otherwise then torsion diminishes.In other words, if will adjust the torsion of yi word pattern rotating shaft 100, then need adjust the interference fit size between public axle 120 and the female axle 140.The edition with parallel text inventive embodiment will change the torsion of turning shaft structure 300, need not change the size of the rubbing surface 326 of public axle (first part 320), for example diameter D1 or length L 1.The torsion of turning shaft structure 300 can be threaded into or screw out in duct 324 and adjust through adjustment element 360.
Can adopt making such as powder metallurgy, zinc alloy, magnalium for 300, the first parts 320 of turning shaft structure with big torsion; Can adopt polyformaldehyde material (POM) to make for 300, the first parts 320 of the turning shaft structure with less torsion.Subsidiary one what carry is that duct 324 can be formed one by the change design and have the duct in taper space, and is used with the conical surface of adjusting element 360, helps to realize the torsion adjustable function of turning shaft structure 300.
Please refer to Fig. 6 and Fig. 7, present embodiment provides a kind of torsion adjusting method, is in order to adjust the torsion of above-mentioned turning shaft structure 300.After the projection 322 of first part 320 inserts the groove 342 of second part 340, can adopt following steps to implement the torsion adjustment of turning shaft structure 300.At first, provide a torsional test device 400, a fixed jig 500 and to rotate tool 600.Torsional test device 400 has a fixing part 420, is used to install fixed jig 500.Fixed jig 500 provides a jack 520, in order to fix first part 320.Rotate tool 600 and comprise a clamping part 620, it is fit to clamp second part 340.
When measuring torsion, fixed jig 500 is inserted the fixing part 420 of torsional test device 400, again first part 320 inserted in the jack 520 of fixed jig 500, and clamp second part 340 with rotating tool 600, with second part 340 of its rotation, can read the torque value of a correspondence this moment from torsional test device 400.
In order to adjust this torque value, present embodiment passes screw 344 with the stem 364 of adjusting element 360 and inserts in the duct 324.The screwing part 362 of adjusting element 360 provides a groove 361 (shown in Fig. 3 B), insert wherein for a spanner 700, and screwing part 362 is rotated into screw 344, and can adjust the rotating cycle of the thread 363 of screwing part 362 further, to move the stem 364 that is arranged in duct 324.In adjusting the process in duct 324 that element 360 is threaded into first part 320, the area of adjusting the rubbing surface between element 360 and the duct 324 increases gradually, projection 322 also increases (shown in Fig. 3 B) gradually with the area of the rubbing surface of groove 342, and the torsion of whole turning shaft structure 300 is increased, otherwise then torsion reduces, and so can reach the purpose of the torsion of adjusting turning shaft structure 300.Torque value be adjusted to one need numerical value after, will adjust element 360 again and be fixed in the screw 344.
In a preferred embodiment, the mode of fixing adjustment element 360 in screw 344 is screwing part 362 can be welded in the screw 344; Or before adjusting element 360 screw-in screws 344, in screw 344, smear an envelope and agent (not shown), again screwing part 362 is screwed in screw 344, when torsion is adjusted, leaving standstill a period of time makes that to seal agent dry, and screwing part 362 promptly is closely linked with screw 344.
In an embodiment of the present invention, need not change first part 220,320 and second parts 240,340 size can be adjusted the torsion of turning shaft structure 200,300, so can reduce turning shaft structure 200,300 first part 220,320 or the design alteration number of times of second part 240,340 part such as grade.And, can use on the board that different torsion demands are arranged with a turning shaft structure 200,300, help part processing and production and assembly like this.
The interference fit size requirement of existing yi word pattern rotating shaft 100 is very high, and between 0.01～0.02mm, the tolerance of all the other fit dimensions is also all between 0.01～0.05mm usually.When the size of above-mentioned part was less than normal or excessive, torque magnitude will exceed design specification.In an embodiment of the present invention, see through to screw in adjust element 260,360 and adjust torsion, and the rotating shaft that torsion is bad adjusts in the specification limit, to increase yield.Have torsion and adjust the machining accuracy that the rotating shaft of function can reduce its part, promote its fine ratio of product simultaneously, have very large meaning.
The above only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and invention description content generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.Arbitrary embodiment of the present invention in addition or claim must not reached the disclosed whole purposes of the present invention or advantage or characteristics.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (12)
1. turning shaft structure comprises:
One first part has a projection, and the inside of this projection has a duct, and this duct provides an opening, and this opening is positioned at the outer surface of this projection;
One second part has a groove, and wherein this groove can insert for this projection of this first part, and the bottom of this groove has a through hole; And
One adjusts element, has a stem,
Wherein, insert this groove of this second part at this projection of this first part after, this through hole of this groove is corresponding to this opening in this duct, makes this stem of this adjustment element be suitable for passing this through hole and inserts in this duct.
2. turning shaft structure as claimed in claim 1 is characterized in that: this projection of this first part has at least two arc cylinders, and this at least two arcs cylinder is to dispose around this duct, has a gap between per two adjacent these arc cylinders.
3. turning shaft structure as claimed in claim 1 is characterized in that: this outer surface of this projection of this first part forms several ring-type chases.
4. turning shaft structure as claimed in claim 1, it is characterized in that: this outer surface of this projection of this first part is provided with a protuberance, the inwall of this groove of this second part is provided with a depressed part, and in the time of in this projection is inserted this groove, this protuberance snaps in this depressed part.
5. turning shaft structure as claimed in claim 1 is characterized in that: this opening in this duct of this first part is a circular port, itself and this adjust element this stem form interference fit.
6. turning shaft structure as claimed in claim 1 is characterized in that: this adjustment element also comprises a screwing part, and the surface of this screwing part is formed with a thread, and this stem has a fixed end and a free end, and this fixed end is to connect this screwing part.
7. turning shaft structure as claimed in claim 6 is characterized in that: this through hole of this second part is a screw, and this screwing part to cooperate this thread for this adjustment element is locked.
8. turning shaft structure as claimed in claim 6 is characterized in that: this free end of this stem has a conical surface.
9. the torsion adjusting method of a turning shaft structure, be in order to adjust the torsion of a turning shaft structure, this turning shaft structure comprises that one first part, one second part and adjust element, wherein this first part has a projection, and the inside of this projection has a duct, and this second part has a groove, the bottom of this groove has a through hole, this projection is to insert in this groove, and makes this through hole be communicated with this duct, and the step of this torsion adjusting method comprises:
Provide a torsional test device, a fixed jig and to rotate tool;
This fixed jig is inserted in this torsional test device;
This first part inserted in this fixed jig;
Rotate this second part with this rotation tool, and read the torque value of a correspondence from this torsional test device;
Pass this through hole and insert in this duct with this adjustment element, and in this through hole and this duct, move this and adjust element, to adjust this torque value; And
This torque value be adjusted to one need numerical value after, fix this adjustment element in this through hole.
10. the torsion adjusting method of turning shaft structure as claimed in claim 9, it is characterized in that: this adjustment element has a screwing part and a stem, this stem is to be connected in this screwing part, and the surface of this screwing part is formed with a groove and a thread, and the step of wherein adjusting this torque value comprises:
Insert with a spanner in this groove of this screwing part, and this screwing part is rotated into this through hole; And
Adjust the rotating cycle of this thread of this screwing part, to move this stem that is arranged in this duct.
11. the torsion adjusting method of turning shaft structure as claimed in claim 10 is characterized in that: fix the step of this adjustment element in this through hole and comprise:
In this through hole, smear an envelope and agent, this screwing part is screwed in this through hole after, leaving standstill a period of time, to make this envelope agent dry.
12. the torsion adjusting method of turning shaft structure as claimed in claim 10 is characterized in that: fix the step of this adjustment element in this through hole and comprise:
This screwing part is welded in this through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810213485A CN101672320A (en) | 2008-09-08 | 2008-09-08 | Rotating shaft structure and torsion adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810213485A CN101672320A (en) | 2008-09-08 | 2008-09-08 | Rotating shaft structure and torsion adjusting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101672320A true CN101672320A (en) | 2010-03-17 |
Family
ID=42019677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810213485A Pending CN101672320A (en) | 2008-09-08 | 2008-09-08 | Rotating shaft structure and torsion adjusting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571334B (en) * | 2015-01-04 | 2019-08-06 | 广东中电创成科技有限公司 | Display device structure |
| CN111318870A (en) * | 2020-03-31 | 2020-06-23 | 新连刚电子科技（重庆）有限公司 | Machining process for pivot device |
-
2008
- 2008-09-08 CN CN200810213485A patent/CN101672320A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104571334B (en) * | 2015-01-04 | 2019-08-06 | 广东中电创成科技有限公司 | Display device structure |
| CN111318870A (en) * | 2020-03-31 | 2020-06-23 | 新连刚电子科技（重庆）有限公司 | Machining process for pivot device |
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Application publication date: 20100317 |