CN104653576A - Screw mechanism with adjustable pre-tightening force - Google Patents
Screw mechanism with adjustable pre-tightening force Download PDFInfo
- Publication number
- CN104653576A CN104653576A CN201510014923.7A CN201510014923A CN104653576A CN 104653576 A CN104653576 A CN 104653576A CN 201510014923 A CN201510014923 A CN 201510014923A CN 104653576 A CN104653576 A CN 104653576A
- Authority
- CN
- China
- Prior art keywords
- screw
- hole
- interior
- interior step
- tapped hole
- 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.)
- Pending
Links
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention discloses a screw mechanism with adjustable pre-tightening force used for lifting adjustment. The screw mechanism is characterized in that the pre-tightening force is provided for a screw through an inner compression spring, and a lifting adjustment rod cylinder is tightly pressed by a cylindrical flat head at the head part of the screw. The screw mechanism is used for lifting adjustment and has the characteristics of stability, reliability, no damage to a cylindrical surface of the lifting rod and long service life.
Description
Technical field
The present invention relates to screw, particularly a kind of adjusting prepressing for lift adjustment tight Z-TEK screw-making mechanism.
Background technique
In the general lock screw of various regulating mechanism, usual locking face end face is the common lock screw of plane or the conical surface is the lock screw of sphere with locking end face, the wherein harder nonelastic guide cylinder face very easily damaging regulating mechanism of the end face of common lock screw, cannot realize repeatedly, trace adjustment; The sphere of sphere lock screw provides with regulating mechanism cylndrical surface is in addition point cantact, and impacting force is poor, and whole mechanism is stable not, and the bound edge of sphere is thinner simultaneously, and cause sphere lock screw itself very easily to damage, working life is shorter.
Summary of the invention
The object of the invention is the screw mechanism providing the tight power of a kind of adjusting prepressing for rising-falling tone, and this screw mechanism is used for lift adjustment and has reliable and stable, lifting bar cylndrical surface without damaging and the feature of long service life.
Technical solution of the present invention is as follows:
The screw mechanism of the tight power of a kind of adjusting prepressing for rising-falling tone, feature is that its formation comprises the screw with interior step tapped hole, stepped cylindrical boss, Compress Spring and Cock screw, described interior step tapped hole screw has the screw of outside thread and interior step tapped hole, described interior step tapped hole is divided into two sections vertically: long section interior threaded hole is closely-pitched inner bolt hole, short section of interior threaded hole is common inner bolt hole, the afterbody of the less outer cylinder of described stepped cylindrical boss has one section of outside thread, the outside thread of described stepped cylindrical boss stretches in described closely-pitched inner bolt hole by described inner bolt hole, described Compress Spring is enclosed within the less outer cylinder of described stepped cylindrical boss, the outside thread of described Cock screw is screwed in the closely-pitched inner bolt hole of described interior step tapped hole screw, the front end of described Cock screw is pushed up mutually with described Compress Spring.
Technique effect of the present invention:
The pretightening force of the present invention by regulating the forward-reverse displacement amount of Cock screw to control Compress Spring, thus adjustment Compress Spring gives the pressure of stepped cylindrical boss.When Compress Spring decrement hour, the big column tack of described stepped cylindrical boss unclamps lift adjustment bar cylindrical body, thus lifting bar can carry out lift adjustment.When Compress Spring decrement is large, the big column tack of described stepped cylindrical boss presses the cylindrical body of lift adjustment bar, ensures that lifting bar compresses locking; Integral elevating controlling mechanism, by the coupling mechanism force of the screw mechanism of the tight power of adjusting prepressing of the present invention, locks reliable and stable and long service life.
Accompanying drawing explanation
Fig. 1 is the sectional view of the screw mechanism of the tight power of adjusting prepressing of the present invention
Fig. 2 is a kind of lifting regulating mechanism sectional view that the present invention applies
Fig. 3 is interior step tapped hole screw sectional view of the present invention
Fig. 4 is stepped cylindrical boss sectional view of the present invention
Fig. 5 is Compress Spring External view of the present invention
Fig. 6 is Cock screw External view of the present invention
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, but should not limit the scope of the invention according to this.
Refer to Fig. 1, Fig. 2, Fig. 1 is the sectional view of the screw mechanism of the tight power of adjusting prepressing of the present invention, as seen from the figure, the screw mechanism of the tight power of adjusting prepressing of the present invention, form and comprise the screw 1 with interior step tapped hole, stepped cylindrical boss 2, Compress Spring 3, Cock screw 4, described interior step tapped hole screw 1 has outside thread and interior step tapped hole, described interior step tapped hole is two sections vertically: long section interior threaded hole is closely-pitched inner bolt hole M1, short section of interior threaded hole is common inner bolt hole M2, the afterbody of the less outer cylinder of described stepped cylindrical boss 2 has one section of outside thread M3, the outside thread M3 of described stepped cylindrical boss 2 stretches in described closely-pitched inner bolt hole M1 by described inner bolt hole M2, described Compress Spring 3 is enclosed within the small end outer cylinder of described stepped cylindrical boss 2, the outside thread of described Cock screw 4 is screwed in the closely-pitched inner bolt hole M1 of described interior step tapped hole screw 1, front end and the described Compress Spring 3 phase top of Cock screw 4.
See the sectional view that Fig. 3, Fig. 3 are interior step tapped hole screws of the present invention, described interior step tapped hole screw 1 inside has two sections of interior threaded holes vertically, and large end threaded interior hole is closely-pitched internal thread M1, and small end threaded interior hole is common internal thread M2.
Fig. 4 is stepped cylindrical boss sectional view of the present invention, the small diameter afterbody of stepped cylindrical boss 2 has one section of outside thread to be outside thread M3, numerical values recited is equal with M2, stepped cylindrical boss 2 is coordinated by its afterbody one section of outside thread M3 and interior step tapped hole screw 1 one sections of interior threaded hole M2 and is screwed into, whole for stepped cylindrical boss 2 small end is screwed in the interior threaded hole M1 of interior step tapped hole screw 1, Compress Spring 3 internal diameter size just in time fits on stepped cylindrical boss 2 small end external diameter, external diameter is just in time engaged in the interior threaded hole M1 of interior step tapped hole screw 1, Cock screw 4 to be coordinated with interior step tapped hole screw 1 afterbody by its size outside thread M4 just in time equal with internal thread M1 to be tightened, be closed in the larger internal thread M1 afterbody of interior step tapped hole screw 1, this Cock screw 4 external diameter adopts the fine thread identical with the internal thread M1 of interior step tapped hole screw 1, the screw thread gap that cooperatively interacts is less, not easily loosen.
Described interior step tapped hole screw 1 integral outer is all the screw of flank of thread, and inside has two sections of step threaded interior holes vertically, and large end threaded interior hole is closely-pitched internal thread M1, and small end threaded interior hole is common internal thread M2
Described stepped cylindrical boss, it is one section of Step Shaft, and comparatively small circumference diameter afterbody has one section of outside thread to be outside thread M3, and size is equal with M2.
Fig. 5 is Compress Spring External view of the present invention, described Compress Spring 3 is one section of Compress Spring, be loaded into the internal thread M1 portion of interior step tapped hole screw 1, Compress Spring 3 internal diameter size just in time fits on stepped cylindrical boss 2 small end external diameter, external diameter is just in time engaged in the interior threaded hole M1 of interior step tapped hole screw 1, for stepped cylindrical boss 2 provides pre-pressing force.
Fig. 6 is Cock screw External view of the present invention, described Cock screw 4, to be coordinated with interior step tapped hole screw 1 afterbody by its size outside thread M4 just in time equal with interior M1 and tighten, be closed in the larger inner bolt hole M1 afterbody of interior step tapped hole screw 1, this Cock screw 4 external diameter adopts the fine thread identical with the internal thread M1 of interior step tapped hole screw 1, and the screw thread gap that cooperatively interacts is less, not easily loosens, whole special screw assemblies is made to be formed complete, stable overall structure.
Claims (1)
1. the screw mechanism of the tight power of the adjusting prepressing for lift adjustment, be characterised in that its formation comprises the screw (1) with interior step tapped hole, stepped cylindrical boss (2), Compress Spring (3) and Cock screw (4), the screw (1) of described interior step tapped hole has outside thread and interior step tapped hole, described interior step tapped hole is two sections vertically: long section interior threaded hole is closely-pitched inner bolt hole (M1), short section of interior threaded hole is common inner bolt hole (M2), the afterbody of the less outer cylinder of described stepped cylindrical boss (2) has one section of outside thread (M3), this outside thread (M3) stretches in described closely-pitched inner bolt hole (M1) by described inner bolt hole (M2), described Compress Spring (3) is enclosed within described stepped cylindrical boss (2) less outer cylinder, the outside thread of described Cock screw (4) is screwed in the closely-pitched inner bolt hole (M1) of described interior step tapped hole screw (1), the front end of described Cock screw (4) is pushed up mutually with described Compress Spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014923.7A CN104653576A (en) | 2015-01-13 | 2015-01-13 | Screw mechanism with adjustable pre-tightening force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014923.7A CN104653576A (en) | 2015-01-13 | 2015-01-13 | Screw mechanism with adjustable pre-tightening force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104653576A true CN104653576A (en) | 2015-05-27 |
Family
ID=53245083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014923.7A Pending CN104653576A (en) | 2015-01-13 | 2015-01-13 | Screw mechanism with adjustable pre-tightening force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104653576A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089880A (en) * | 2016-08-17 | 2016-11-09 | 中山大山摄影器材有限公司 | Camera frame expansion link |
| CN106286493A (en) * | 2016-08-26 | 2017-01-04 | 北京星航机电装备有限公司 | Elastic compression is followed closely |
| JP2019166610A (en) * | 2018-03-26 | 2019-10-03 | 株式会社荏原製作所 | Press bolt for disassembling flange |
| CN115823089A (en) * | 2022-11-25 | 2023-03-21 | 昆明理工大学 | Part rotating structure and method for preventing screw from being compressed |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038005A (en) * | 2006-03-17 | 2007-09-19 | 恩益禧电子股份有限公司 | Bolt and semiconductor manufacturing apparatus |
| WO2009145169A1 (en) * | 2008-05-30 | 2009-12-03 | Ntn株式会社 | Lash adjuster |
| JP2009285717A (en) * | 2008-05-30 | 2009-12-10 | Ikuo Oshita | Spring plunger unit |
| CN101858380A (en) * | 2010-06-22 | 2010-10-13 | 中国科学院云南天文台 | Elastic fastening bolt |
| CN202301304U (en) * | 2011-10-28 | 2012-07-04 | 东莞市新泽谷机械有限公司 | Bolt-type flexible lifting pin |
| CN202763126U (en) * | 2012-08-17 | 2013-03-06 | 株洲硬质合金集团有限公司 | Machine tool feeding cutter locating device |
-
2015
- 2015-01-13 CN CN201510014923.7A patent/CN104653576A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038005A (en) * | 2006-03-17 | 2007-09-19 | 恩益禧电子股份有限公司 | Bolt and semiconductor manufacturing apparatus |
| WO2009145169A1 (en) * | 2008-05-30 | 2009-12-03 | Ntn株式会社 | Lash adjuster |
| JP2009285717A (en) * | 2008-05-30 | 2009-12-10 | Ikuo Oshita | Spring plunger unit |
| CN101858380A (en) * | 2010-06-22 | 2010-10-13 | 中国科学院云南天文台 | Elastic fastening bolt |
| CN202301304U (en) * | 2011-10-28 | 2012-07-04 | 东莞市新泽谷机械有限公司 | Bolt-type flexible lifting pin |
| CN202763126U (en) * | 2012-08-17 | 2013-03-06 | 株洲硬质合金集团有限公司 | Machine tool feeding cutter locating device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089880A (en) * | 2016-08-17 | 2016-11-09 | 中山大山摄影器材有限公司 | Camera frame expansion link |
| CN106286493A (en) * | 2016-08-26 | 2017-01-04 | 北京星航机电装备有限公司 | Elastic compression is followed closely |
| CN106286493B (en) * | 2016-08-26 | 2019-01-11 | 北京星航机电装备有限公司 | Elastic compression nail |
| JP2019166610A (en) * | 2018-03-26 | 2019-10-03 | 株式会社荏原製作所 | Press bolt for disassembling flange |
| JP7136573B2 (en) | 2018-03-26 | 2022-09-13 | 株式会社荏原製作所 | Push bolt for flange disassembly |
| CN115823089A (en) * | 2022-11-25 | 2023-03-21 | 昆明理工大学 | Part rotating structure and method for preventing screw from being compressed |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |