CN105805142A - Screw thread anti-looseness device characterized by adoption of toothed limiting mode - Google Patents
Screw thread anti-looseness device characterized by adoption of toothed limiting mode Download PDFInfo
- Publication number
- CN105805142A CN105805142A CN201610351064.5A CN201610351064A CN105805142A CN 105805142 A CN105805142 A CN 105805142A CN 201610351064 A CN201610351064 A CN 201610351064A CN 105805142 A CN105805142 A CN 105805142A
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- profile
- toothed
- movable block
- limited block
- block
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- 230000014759 maintenance of location Effects 0.000 claims description 8
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory 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
- 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
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
Abstract
Disclosed is a screw thread anti-looseness device characterized by adoption of a toothed limiting mode. The screw thread anti-looseness device comprises a toothed limiting block, a movable block, catch bolts and a lock nut. Toothed grooves are formed in the surface of the toothed limiting block and the bottom surface of the movable block. A square through groove is formed in the middle of the toothed limiting block, a protruding tooth is formed at the bottom of the toothed limiting block, and the movable block is fixedly arranged in the square through groove of the toothed limiting block through the catch bolts. The lock nut sleeves one side of a shaft sleeve, a knuckle bearing is installed outside the other side of the shaft sleeve, and the shaft sleeve sleeves a rotating shaft. The protruding tooth of the toothed limiting block is clamped into a clamping groove of the shaft sleeve. The movable block is meshed with the toothed limiting block through the toothed grooves. The catch bolts align at threaded holes which are formed in the lock nut in advance, and the catch bolts and the threaded holes are locked. The lock nut and the shaft sleeve are limited through the toothed limiting block and the movable block, and can be free of relative movement, the screw thread anti-looseness purpose is achieved, fine adjustment can be conducted through the toothed grooves formed in the toothed limiting block and the movable block, the screw thread anti-looseness device plays a key role in accurate limiting of the lock nut in the installation process of the rotating shaft, adjustment is convenient, and limiting is accurate.
Description
Technical field
The present invention relates to a kind of screw retention, particularly relate to a kind of screw retention adopting profile of tooth spacing.
Background technology
Connect in design at common bolt (nail), can be selected for multiple locking thread form.The standard anti-loose method such as locking in split pin, punching point insurance is locking, stop washer is locking and electric fuse is locking.These simple locking modes, through facts have proved that to common bolt (nail), nut connection be effective, are but not necessarily suitable for for some unconventional large-diameter thread connection (as flying tail rotating shaft is connected with the locking nut of bearing).
Large-diameter thread connects owing to can produce bigger frictional force, and because special version, space are limit, locking only by carrying out after the stop washer in above-mentioned locking mode is suitably modified.Or, adopt be different from standard locking limited block design, namely on two parts of screw-threaded engagement respectively fluting, perforate, with screw install limited block ensure will not relatively rotate between the two.But, actually both modes are not ideal, and its common drawback is to need the rotational angle of adjusting nut in installation process, aligns with the stopper slot on nut or screw hole with the curved tooth or the screw hole of limited block ensureing stop washer.
Aforesaid operations gets up sometimes extremely difficult, and degree of regulation is subject to stopper slot or hole count quantitative limitation, and in fact conventional locking thread there is also this problem, just can solve typically via adding packing ring, and tightness is easily controlled.But large-diameter thread is connected, especially the sleeve thread between flying tail rotating shaft and bearing is locking, then need to overcome cannot cushioning, clearance requirement is high and needs accurate limiting, be easy to the restriction of the factors such as operation, designs a kind of novel screw retention.
Summary of the invention
The present invention needs the problem solved to be to provide a kind of screw retention adopting profile of tooth spacing.
For solving the technical problem of the present invention, the technical solution used in the present invention is:
A kind of screw retention adopting profile of tooth spacing, it includes profile of tooth limited block, movable block, dogbolt and locking nut, the described surface of profile of tooth limited block and the bottom surface of movable block are each formed with teeth groove, the mid portion of described profile of tooth limited block has square three-way groove, the bottom of described profile of tooth limited block is formed with double wedge, described movable block is fixed on the square three-way groove of profile of tooth limited block by dogbolt, described locking nut is placed on axle sleeve side, outside described axle sleeve opposite side, oscillating bearing is installed, described axle sleeve is placed in rotating shaft, the double wedge of described profile of tooth limited block snaps in the draw-in groove of axle sleeve, described movable block is engaged with profile of tooth limited block by teeth groove, described dogbolt is directed at locking with the screwed hole opened in advance on locking nut.
The present invention arranges profile of tooth limited block, it is contemplated that horizontal tail rotating shaft is high with bearing fit clearance requirement, adopts conventional screw pilot hole cannot meet needs owing to precision is low, thus selecting this brand-new design of profile of tooth limited block.Profile of tooth limited block has feature easy to adjust, that precision is high, in horizontal tail rotating shaft installation process, the accurate limiting of locking nut is played critical effect.
The present invention arranges movable block, in order to coordinate profile of tooth limited block, at one piece of movable block of location arrangements of its fixing screw, is engaged with by teeth groove.The position regulating movable block during installation just can complete the accurate limiting of locking nut.This apparatus structure is simple, easy to adjust, spacing accurately, breach the various limitation of Conventional limit block design.
Beneficial effects of the present invention: by profile of tooth limited block and movable block, spacing to carrying out between locking nut and axle sleeve, make both without relative motion, realize locking thread, and can be finely tuned with the teeth groove on movable block by profile of tooth limited block, the accurate limiting of locking nut is played critical effect by rotating shaft installation process, easy to adjust, spacing accurately.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of the present invention.
Fig. 1 a is the structural representation of movable block in Fig. 1.
Fig. 1 b is the structural representation of profile of tooth limited block in Fig. 1.
Fig. 2 is the cooperation schematic diagram of movable block of the present invention and profile of tooth limited block.
Fig. 3 is the exploded view of the present invention.
1, rotating shaft, 2, oscillating bearing, 3, locking nut, 4, profile of tooth limited block, 5, movable block, 6, dogbolt, 7, axle sleeve, 8, teeth groove, 9, square three-way groove, 10, double wedge, 11, draw-in groove, 12, screwed hole.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.Following example are merely to illustrate the present invention, are not limited to protection scope of the present invention.
Shown in Fig. 1 and 3, a kind of screw retention adopting profile of tooth spacing of the present invention, it includes profile of tooth limited block 4 and movable block 5, the surface of profile of tooth limited block 4 and the bottom surface of movable block 5 are each formed with teeth groove 8, the mid portion of profile of tooth limited block 4 has square three-way groove 9, the bottom of profile of tooth limited block 4 is formed with double wedge 10, movable block 5 is fixed on the square three-way groove 9 of profile of tooth limited block 4 by dogbolt 6, locking nut 3 is placed on axle sleeve 7 side, oscillating bearing 2 is installed outside axle sleeve 7 opposite side, axle sleeve 7 is placed in rotating shaft 1, the double wedge 10 of profile of tooth limited block 4 snaps in the draw-in groove 11 of axle sleeve 7, movable block 5 is engaged with profile of tooth limited block 4 by teeth groove 8, dogbolt 6 is directed at locking with the screwed hole 12 opened in advance on locking nut 3.
The main body of the present invention is profile of tooth limited block 4 and movable block 5, and its effect is to carry out spacing between locking nut 3 and axle sleeve 7, makes both without relative motion, it is achieved locking thread, and the teeth groove 8 that can pass through on profile of tooth limited block 4 and movable block 5 be finely tuned.
Shown in Fig. 1 a, Fig. 1 b and Fig. 2, the faying face between profile of tooth limited block 4 and movable block 5 is engaged by teeth groove 8, then fixes with two dogbolts 6.Profile of tooth limited block 4 mid portion outputs square three-way groove 9, to avoid producing to interfere with two dogbolts 6.Load path is by dogbolt 6 Compressive activities block 5, and the teeth groove on movable block 5 and profile of tooth limited block 4 produce field of conjugate action extruding, are then delivered on the double wedge 10 of profile of tooth limited block 4.
Shown in Fig. 3, for ensureing between locking nut 3 and axle sleeve 7 without relative motion, after profile of tooth limited block 4 snaps in the draw-in groove 11 of axle sleeve 7, regulate the position of movable block 5, it is made to be directed on locking nut 3 screwed hole 12 opened in advance, and fix with dogbolt 6, the degree of regulation of movable block 5 is relevant to the space width of teeth groove.
First the internal ring of oscillating bearing 2 is inserted in rotating shaft 1, is fixed with locking nut by axle sleeve 7, and threaded engagement is tightened after putting in place, then installs profile of tooth stopping means.During installation, the double wedge 10 of profile of tooth limited block 4 snaps in the draw-in groove 11 of axle sleeve 7, and movable block 5 is engaged with by teeth groove 8, and regulates its position and be directed at the screwed hole 12 opened in advance on locking nut 3, two dogbolts 6 are finally installed, profile of tooth stopping means is fixed on the outer ring of locking nut 3.Two bolts hole (square three-way groove 9) that the profile of tooth stopping means of the present invention achieves on profile of tooth limited block 4 are no longer fixing, but can move about.
Claims (1)
1. one kind adopts the screw retention that profile of tooth is spacing, it is characterized in that: it includes profile of tooth limited block, movable block, dogbolt and locking nut, the described surface of profile of tooth limited block and the bottom surface of movable block are each formed with teeth groove, the mid portion of described profile of tooth limited block has square three-way groove, the bottom of described profile of tooth limited block is formed with double wedge, described movable block is fixed on the square three-way groove of profile of tooth limited block by dogbolt, described locking nut is placed on axle sleeve side, outside described axle sleeve opposite side, oscillating bearing is installed, described axle sleeve is placed in rotating shaft, the double wedge of described profile of tooth limited block snaps in the draw-in groove of axle sleeve, described movable block is engaged with profile of tooth limited block by teeth groove, described dogbolt is directed at locking with the screwed hole opened in advance on locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351064.5A CN105805142B (en) | 2016-05-25 | 2016-05-25 | A kind of screw retention spacing using tooth form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351064.5A CN105805142B (en) | 2016-05-25 | 2016-05-25 | A kind of screw retention spacing using tooth form |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105805142A true CN105805142A (en) | 2016-07-27 |
| CN105805142B CN105805142B (en) | 2018-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351064.5A Active CN105805142B (en) | 2016-05-25 | 2016-05-25 | A kind of screw retention spacing using tooth form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105805142B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194966A (en) * | 2016-10-08 | 2016-12-07 | 苗超 | The securing member that anti-nut comes off |
| CN109185315A (en) * | 2018-11-23 | 2019-01-11 | 航天精工股份有限公司 | A kind of locking auxiliary connection |
| CN109936125A (en) * | 2019-04-01 | 2019-06-25 | 广州市雷斯盾电气科技发展有限公司 | A kind of arc suppression coil device with disconnecting structure |
| CN111685482A (en) * | 2019-03-16 | 2020-09-22 | 浙江师范大学 | Liftable adjustment formula desk |
| CN112977035A (en) * | 2019-12-13 | 2021-06-18 | 北京宝沃汽车股份有限公司 | Installing support, suspension assembly and vehicle |
| CN113635019A (en) * | 2021-08-13 | 2021-11-12 | 湖南腾智机电有限责任公司 | Tool for press-fitting rotor shaft of multi-rotary-vane vacuum pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE845385A (en) * | 1975-08-21 | 1977-02-21 | NUT LOCKING DEVICE | |
| DE3410868A1 (en) * | 1984-03-21 | 1985-10-03 | Thanh-Son Dipl.-Ing. 1000 Berlin Le | Re-usable, positively-locking nut lock |
| US4971501A (en) * | 1984-03-16 | 1990-11-20 | Hi-Shear Corporation | Self-locking, releasable lock nut |
| CN203685822U (en) * | 2014-04-07 | 2014-07-02 | 广州市施达生五金配件制造有限公司 | Locking gasket suitable for preventing long-hole bolt from loosening |
| CN203717593U (en) * | 2013-04-29 | 2014-07-16 | 昆山吉满堂车业有限公司 | Anti-loose and anti-slip screwing assembly and bolt and nut thereof |
| CN104800007A (en) * | 2015-05-08 | 2015-07-29 | 吴梦炜 | Folding type emergency stretcher |
-
2016
- 2016-05-25 CN CN201610351064.5A patent/CN105805142B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE845385A (en) * | 1975-08-21 | 1977-02-21 | NUT LOCKING DEVICE | |
| US4971501A (en) * | 1984-03-16 | 1990-11-20 | Hi-Shear Corporation | Self-locking, releasable lock nut |
| DE3410868A1 (en) * | 1984-03-21 | 1985-10-03 | Thanh-Son Dipl.-Ing. 1000 Berlin Le | Re-usable, positively-locking nut lock |
| CN203717593U (en) * | 2013-04-29 | 2014-07-16 | 昆山吉满堂车业有限公司 | Anti-loose and anti-slip screwing assembly and bolt and nut thereof |
| CN203685822U (en) * | 2014-04-07 | 2014-07-02 | 广州市施达生五金配件制造有限公司 | Locking gasket suitable for preventing long-hole bolt from loosening |
| CN104800007A (en) * | 2015-05-08 | 2015-07-29 | 吴梦炜 | Folding type emergency stretcher |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194966A (en) * | 2016-10-08 | 2016-12-07 | 苗超 | The securing member that anti-nut comes off |
| CN106194966B (en) * | 2016-10-08 | 2018-12-07 | 苗超 | The fastener that anti-nut falls off |
| CN109185315A (en) * | 2018-11-23 | 2019-01-11 | 航天精工股份有限公司 | A kind of locking auxiliary connection |
| CN111685482A (en) * | 2019-03-16 | 2020-09-22 | 浙江师范大学 | Liftable adjustment formula desk |
| CN111685482B (en) * | 2019-03-16 | 2023-09-29 | 浙江师范大学 | Liftable adjustment formula desk |
| CN109936125A (en) * | 2019-04-01 | 2019-06-25 | 广州市雷斯盾电气科技发展有限公司 | A kind of arc suppression coil device with disconnecting structure |
| CN112977035A (en) * | 2019-12-13 | 2021-06-18 | 北京宝沃汽车股份有限公司 | Installing support, suspension assembly and vehicle |
| CN113635019A (en) * | 2021-08-13 | 2021-11-12 | 湖南腾智机电有限责任公司 | Tool for press-fitting rotor shaft of multi-rotary-vane vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105805142B (en) | 2018-02-13 |
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