CN108119503A - A kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw - Google Patents
A kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw Download PDFInfo
- Publication number
- CN108119503A CN108119503A CN201611067975.1A CN201611067975A CN108119503A CN 108119503 A CN108119503 A CN 108119503A CN 201611067975 A CN201611067975 A CN 201611067975A CN 108119503 A CN108119503 A CN 108119503A
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- China
- Prior art keywords
- nut
- gap
- synchronous
- adjusting
- screw
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- 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.)
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 95
- 239000011159 matrix material Substances 0.000 claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007812 deficiency 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw, it is characterized in that adjusting screw is equipped with anti-rotational keyway, adjusting nut is with synchronous except gap nut is mounted on the adjusting screw and is placed in installing matrix, with synchronous except gap nut is equipped with synchronous pin hole, synchronous pin is assemblied in synchronous pin hole adjusting nut；Adjusting nut and synchronization are equipped with gap between removing gap nut；Nut fixed block is by adjusting nut with synchronous except gap nut is mounted in installing matrix；The adjusting nut that can be rotated in installing matrix is with synchronous except gap nut has axial gap in installing matrix；Nut fixed block is equipped with screw hole for installing except gap screw.The configuration of the present invention is simple, reliable operation, part is easy to manufacture, effectively eliminates the gap for adjusting screw and nut, improves the positioning accuracy for adjusting screw.
Description
Technical field
The present invention relates to a kind of mechanical adjustment feed screw nut installing mechanism, a kind of particularly mechanical adjustment feed screw nut is locking
Retaining mechanism.
Background technology
The working method of mechanical adjustment screw is by the relative rotation between nut and screw at present, generates screw axial
It is mobile, achieve the purpose that screw is adjusted；It is double nuts structure that screw, which adjusts locking normal method, to reach locking purpose, is needed
Apply certain torque on nut, make to produce relative rotation between nut, to reduce or eliminate nut and screw fit clearance；It is but double
Nut structure is used there are certain limitation, is mainly used in screw rotation, and nut is fixed to be adjusted in screw body；In silk
Bar is non-rotatable, and the rotation for only relying on nut is driven in the adjusting screw body that screw work moves axially, and such as uses double nut knot
Structure will apply rotation torque to two nuts respectively, and since two nuts cannot rotate synchronously, nut can generate interference with screw
And lock, lose screw adjustment effect；Particularly when restricted in structure, adjusting nut must be placed inside parts, nothing
Method application double nuts structure at this time frequently with single nut structure, by improving part processing precision and fit precision, is adjusted to eliminate
Save the gap of screw and nut.
Shortcoming existing for this single nut structure is：
1st, part processing precision is high, adds difficulty of processing and cost.
2nd, the fit clearance adjusted between screw and nut cannot be eliminated.
3rd, due to the presence of the fit clearance between adjusting screw and nut, the positioning accuracy for adjusting screw is reduced.
The content of the invention
The technical problems to be solved by the invention are the deficiencies avoided present in the above-mentioned prior art, provide a kind of machinery and adjust
Save feed screw nut's anti-loosening locking mechanism.
The technical proposal for solving the technical problem of the invention is：
Nut looseness-proof locking mechanism of mechanical adjustment lead screw of the present invention is structurally characterized in that adjusting screw is equipped with anti-rotational keyway, adjusts
Section nut and it is synchronous except gap nut mounted on it is described adjust screw on and be placed in installing matrix, the adjusting nut with it is synchronous
Except gap nut is equipped with synchronous pin hole, synchronous pin is assemblied in the synchronous pin hole, and the synchronization pin is with adjusting spiral shell
Pin hole tight fit on mother moves cooperation with the synchronous pin hole except on gap nut；Adjusting nut with it is synchronous except gap nut end face it
Between be equipped with gap；Adjusting nut is mounted on the synchronous gap nut that removes in installing matrix by nut fixed block, the upper end of adjusting nut
Face is contacted with installing matrix, and the synchronous lower face except gap nut is held out against by removing gap screw, the adjusting that can be rotated in installing matrix
Nut is with synchronous except gap nut has axial gap in installing matrix；Nut fixed block is equipped with screw hole for installing except gap spiral shell
Nail.
The design feature of nut looseness-proof locking mechanism of mechanical adjustment lead screw of the present invention is lain also in：
The adjusting nut is respectively greater than with the synchronous spacing except between gap nut end face to be adjusted between screw and adjusting nut
Thread pitch and adjusting screw and the synchronous thread pitch except between gap nut.
The driving mechanism for setting adjusting nut is worm and gear.
The driving mechanism for setting adjusting nut is driving lever.
The adjusting nut is with intermeshing groove with the synchronous synchronous pin hole except on gap nut and synchronous pin
It is alternative structure with boss.
The present invention the course of work be：
It if you need to adjust adjusting screw, first unclamps synchronous except gap screw, allows adjusting nut, synchronous except gap nut is with adjusting screw, adjust
Appropriate gap is maintained between section nut and each component of nut installing matrix, adjusting nut revolves under the action of driving mechanism
Turn, it is synchronous except gap nut under the action of synchronous pin with adjusting nut synchronous rotary.After adjusting screw is conditioned in place, screw
Except gap screw, compress synchronous except gap nut；It is synchronous due to the position-limiting action of synchronous pin after synchronously removing gap nut end face stress
Except gap nut makees axial displacement, adjusting screw is driven to move axially, adjust screw and again adjusting nut is driven to move axially, into
And adjusting nut is made to generate close contact with installing matrix.
The present invention makes adjusting nut with synchronous except gap nut rotates simultaneously, avoids double spiral shells by the effect of synchronous pin
The deadlock phenomenon that mother is likely to occur under different drivings；Under the limitation of installing matrix, gap screw is removed by screwing, is eliminated
Adjusting nut, except the gap between gap nut and screw；Also eliminate adjusting nut and synchronous except between gap nut and installing matrix
Axial gap so that adjusting screw and installing matrix becomes a gapless entirety, has reached and has adjusted the anti-of screw and nut
It uncages tight.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1st, simple in structure, reliable operation, part is easy to manufacture.
2nd, the gap for adjusting screw and nut is eliminated, improves the positioning accuracy for adjusting screw.
Description of the drawings
Fig. 1 is worm and gear driving structure schematic diagram of the present invention.
Fig. 2 is driving lever driving structure schematic diagram of the present invention.
Fig. 3 is another embodiment structure diagram of worm and gear driving structure of the present invention.
Another embodiment structure diagram of Fig. 4 driving lever driving structures of the present invention.
Figure label：01 screw, 02 adjusting nut, 03 synchronous pin, 04 is synchronous except gap nut, 05 nut fixed block, and 06
Except gap screw, 07 adjusting nut driving mechanism, 08 nut installing matrix, 09 keyway.
Below by way of specific embodiment, with reference to attached drawing, the invention will be further described.
Specific embodiment
In this implementation, anti-rotational keyway 09 is equipped on screw 01 is adjusted, adjusting nut 02 is with synchronous except gap nut 04 is pacified
Mounted in adjusting on screw 01 and being placed in installing matrix 08, adjusting nut 02 is with synchronous except gap nut 04 is equipped with synchronous pin
Hole, synchronous pin 03 are assemblied in synchronous pin hole, synchronous pin 03 and pin hole tight fit on adjusting nut 02, with synchronously removing
04 pin hole of gap nut moves cooperation；Adjusting nut 02 and synchronization are equipped with certain spacing between removing 04 end face of gap nut；Nut is consolidated
Determine block 05 to be mounted on adjusting nut 02 in installing matrix 08 with the synchronous gap nut 04 that removes, 02 upper surface of adjusting nut and installation base
Body 08 contacts, and except 04 lower face of gap nut is held out against by removing gap screw 06, adjusting nut 02 is with synchronous except gap nut 04 is in installation base
There is suitable axial gap in body 08, nut can easily rotate；Nut fixed block 05 is equipped with screw hole, and installation is except gap screw
06。
In specific implementation, adjusting nut 02 be more than with the synchronous spacing L1 except between 04 end face of gap nut adjust screw 01 with
Adjusting nut 02 and adjusting screw 01 and the synchronous thread pitch except between gap nut 04 recommend spacing L1 to adjust screw 01
Select screw thread half of tooth away from.
The driving mechanism 07 of adjusting nut 02 could be provided as Fig. 1, worm and gear driving mechanism shown in Fig. 3, can also
It is arranged to Fig. 2 and driving lever driving mechanism shown in Fig. 4.
Fig. 1, adjusting nut shown in Fig. 2 02 also may be used with the synchronous synchronous pin hole except on gap nut 04 and synchronous pin 03
To be Fig. 3, shown in Fig. 4 synchronize cooperation with intermeshing groove and boss.Adjusting nut 02 removes gap nut with synchronous
Spacing L1 and L2 between 04 end face are all higher than adjusting screw 01 and remove gap spiral shell with synchronous with adjusting nut 02 and adjusting screw 01
Thread pitch between mother 04, recommend spacing L1 and L2 be adjust screw 01 select half of tooth of screw thread away from.
Synchronous peg type structure：
Shown in Fig. 1, Fig. 2, adjusting nut 02 with synchronous except gap nut 04 is all placed in installing matrix 08, adjusting nut 02 and same
Step, which is removed, bores synchronous pin hole on gap nut 04, synchronous pin 03 is assemblied in synchronous pin hole, synchronous pin 03 and adjusting nut
Pin hole tight fit on 02, with synchronous except 04 pin hole of gap nut moves cooperation；Ensure that adjusting nut 02 removes gap spiral shell with synchronous first
Cooperation between mother 04 and screw 01, then under the limitation of synchronous pin 03, there is certain spacing L1 (to recommend between two nut end faces
Spacing for half tooth away from), two nuts are not in contact.Adjusting nut 02 is removed by gap nut 04 with synchronous by nut fixed block 05
In installing matrix 08,02 upper surface of adjusting nut is contacted with installing matrix 08, except 04 lower face of gap nut is consolidated with nut
Determine block 05 to contact, adjusting nut 02, except gap nut 04 has a small amount of axial gap in installing matrix 08, ensures nut with synchronous
It can easily rotate；It is bored on nut fixed block 05 except gap screw hole (no less than 2, circumference uniform distribution), installation is except gap screw 06.
In real work, adjust screw 01 if you need to adjust, first unclamp except gap screw 06, allow adjusting nut 02, synchronously remove
There is appropriate gap between gap nut 04 and adjusting 08 each component of screw 01 and adjusting nut 02 and installing matrix, adjust spiral shell
Mother 02 rotates under the action of driving mechanism 07, synchronous same with adjusting nut 02 under the action of synchronous pin 03 except gap nut 04
Step rotation.It after adjusting screw 01 is adjusted in place, screws except gap screw 06, compresses synchronous except gap nut 04；It is synchronous to remove gap nut 04
It is synchronous except gap nut 04 makees axial displacement due to the position-limiting action of synchronous pin 03 after the stress of end face, screw 01 is driven to make axial direction
Mobile, screw 01 drives adjusting nut 02 to move axially again, and then adjusting nut 02 is made to be generated with installing matrix 08 and is closely connect
It touches.
In the present embodiment, under the effect of driving mechanism 07, by synchronous pin 03, make adjusting nut 02 with synchronous except gap spiral shell
Mother 04 rotates simultaneously, avoids the deadlock phenomenon that double nut is likely to occur under different drivings；In the limitation of installing matrix 08
Under, gap screw 06 is removed by screwing, eliminates adjusting nut 02, the gap except between gap nut 04 and screw 01；Also eliminate tune
Save nut 02 and the synchronous axial gap except between gap nut 04 and installing matrix 08 so that adjust screw 01 and installing matrix 08 into
For a gapless entirety, the locking and locking function for adjusting screw 01 is reached.
Synchronous bumps slot type structure：
Shown in Fig. 3, Fig. 4, intermeshing with the boss fit structure of groove may be employed and substitute synchronous pin 03, other structures and
Synchronous peg type structure is identical.
See Fig. 3 (worm and gear driving) and Fig. 4 (shift fork driving).
Adjusting nut 02, except gap nut 04 is all placed in installing matrix 08, is opened elongated recessed with synchronous on adjusting nut 02
Slot, except elongated boss is opened on gap nut 04, adjusting nut groove is engaged with except gap nut boss mutually loosens；It keeps adjusting first
Nut 02 and synchronous except the cooperation of gap nut 04 and screw 01, intermeshing adjusting nut and except keeping one between gap nut end face
Fixed gap L 1 and L2, two nuts are not in contact.Adjusting nut 02 is removed by gap nut 04 with synchronous by nut fixed block 05
In installing matrix 08,02 upper surface of adjusting nut is contacted with installing matrix 08, except 04 lower face of gap nut and by removing gap
Screw 06 is held out against, and adjusting nut 02, except gap nut 04 has a small amount of axial gap in installing matrix 08, ensures nut with synchronous
It can easily rotate；It is bored on nut fixed block 05 except gap screw hole (no less than 2, circumference uniform distribution), installation is except gap screw 06.
It in real work, if you need to adjust screw 01, first unclamps except gap screw 06, allows adjusting nut 02, synchronization except gap spiral shell
, there is appropriate gap between 08 part of adjusting nut 02 and installing matrix, adjusting nut 02 is in driving mechanism in mother 04 and screw 01
Rotated under the action of 07, it is synchronous except gap nut 04 under the action of tongue and groove with 02 synchronous rotary of adjusting nut.Screw 01 is adjusted
It after in place, screws except gap screw 06, compresses synchronous except gap nut 04；After synchronously removing 04 end face stress of gap nut, due to synchronous pin
The position-limiting action of nail 03, synchronous except gap nut 04 makees axial displacement screw 01 to be driven to move axially, screw 01 drives and adjusts again
Nut 02 moves axially, and then adjusting nut 02 is made to generate close contact with installing matrix 08.
Claims (5)
1. a kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw, it is characterized in that adjusting screw (01) is equipped with anti-rotational keyway
(09), adjusting nut (02) with synchronous except gap nut (04) is mounted on adjusting screw (01) and is placed on installing matrix
(08) in, with synchronous except gap nut (04) is equipped with synchronous pin hole, synchronous pin (03) is assemblied in the adjusting nut (02)
In the synchronization pin hole, the synchronization pin (03) is with pin hole tight fit on adjusting nut (02), with synchronous except gap nut
(04) pin hole on moves cooperation；Adjusting nut (02) and synchronization are equipped with gap between removing gap nut (04) end face；Nut is fixed
Adjusting nut (02) is mounted on the synchronous gap nut (04) that removes in installing matrix (08) by block (05), the upper end of adjusting nut (02)
Face is contacted with installing matrix (08), and the synchronous lower face except gap nut (04) is held out against by removing gap screw (06), can be in installing matrix
(08) adjusting nut (02) of rotation and synchronous removes gap nut (04) in and have axial gap installing matrix (08) is interior；Nut is fixed
Block (05) is equipped with screw hole for installing except gap screw (06).
2. nut looseness-proof locking mechanism of mechanical adjustment lead screw according to claim 1, it is characterized in that the adjusting nut
(02) it is respectively greater than with the synchronous gap except between gap nut (04) end face and adjusts between screw (01) and adjusting nut (02)
Thread pitch and adjusting screw (01) and the synchronous thread pitch except between gap nut (04).
3. nut looseness-proof locking mechanism of mechanical adjustment lead screw according to claim 1, it is characterized in that setting the adjusting spiral shell
The driving mechanism of female (02) is worm and gear.
4. nut looseness-proof locking mechanism of mechanical adjustment lead screw according to claim 1, it is characterized in that setting the adjusting spiral shell
The driving mechanism of female (02) is driving lever.
5. nut looseness-proof locking mechanism of mechanical adjustment lead screw according to claim 1, it is characterized in that the adjusting nut
(02) and the synchronous synchronous pin hole except on gap nut (04) and synchronous pin (03) be using intermeshing groove and boss as
Alternative structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067975.1A CN108119503A (en) | 2016-11-29 | 2016-11-29 | A kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611067975.1A CN108119503A (en) | 2016-11-29 | 2016-11-29 | A kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108119503A true CN108119503A (en) | 2018-06-05 |
Family
ID=62225098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611067975.1A Pending CN108119503A (en) | 2016-11-29 | 2016-11-29 | A kind of nut looseness-proof locking mechanism of mechanical adjustment lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108119503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637132A (en) * | 2020-06-22 | 2020-09-08 | 海盐宏茂五金制品有限公司 | Retaining anti-loose combined nut |
-
2016
- 2016-11-29 CN CN201611067975.1A patent/CN108119503A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637132A (en) * | 2020-06-22 | 2020-09-08 | 海盐宏茂五金制品有限公司 | Retaining anti-loose combined nut |
| CN111637132B (en) * | 2020-06-22 | 2022-04-01 | 海盐宏茂五金制品有限公司 | Retaining anti-loose combined nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180605 |