CN109372875A - A kind of big pressure nut of micro- torque - Google Patents
A kind of big pressure nut of micro- torque Download PDFInfo
- Publication number
- CN109372875A CN109372875A CN201811384391.6A CN201811384391A CN109372875A CN 109372875 A CN109372875 A CN 109372875A CN 201811384391 A CN201811384391 A CN 201811384391A CN 109372875 A CN109372875 A CN 109372875A
- Authority
- CN
- China
- Prior art keywords
- traveller
- nut
- hole
- torque
- micro
- 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
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/041—Releasable devices
- F16B37/042—Releasable devices locking by rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
A kind of big pressure nut of micro- torque, including nut shell, holding screw, traveller and compression ring, wherein nut shell lower end surface is equipped with a circle pressure ring slot, it is equipped with a circle plastics annular groove upwards along pressure ring slot, it is evenly equipped with multiple hole axles traveller hole parallel with nut axle center upwards along plastics annular groove, each traveller hole is equipped with a screw hole upwards, holding screw is placed in screw hole, traveller is placed in traveller hole, liquid plastics are filled in plastics annular groove, compression ring is placed in pressure ring slot, the compression force mechanism that the present invention pushes traveller to enter liquid plastics and combine with pressure ring using housing screw, make when being fastened using nut of the present invention, the process of compression only has axial pressing force, any external force is not received in other directions, it ensure that the Set and Positioning precision of part, the labor intensity of operator is also reduced simultaneously, furthermore, it also avoids Influence of the large torque and big radial force generated using conventional nut to parts fixation positioning accuracy, greatly improves the reliability of compression.
Description
Technical field
The invention belongs to field of mechanical technique, and in particular to be related to a kind of big pressure nut of micro- torque.
Background technique
Currently, aero-engine wheel disc pressing plate of puller when broaching tongue-and-groove is axially pressed by common heavy series hexagon nut
Tightly, nut specification usually selects M24 to M30.Force request is compressed to meet, nut need to be applied when tightening hex nut biggish
Torque, artificial force and the result of arm of force effect become a torque and radial pull, and excessive torque can make screw rod, and there are bullets
Property torsional deflection, stop apply torque after screw rod can spring back, cause pressing force to reduce.Radial force can make to be processed wheel disc generation
Subtle radial displacement directly affects positioning accuracy of the wheel disc on fixture.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of micro- big pressure nuts of torque.
The present invention is achieved by the following technical programs.
A kind of micro- big pressure nut of torque provided by the invention, including nut shell, holding screw, traveller and compression
Ring, wherein nut shell lower end surface be equipped with one circle pressure ring slot, be equipped with a circle plastics annular groove upwards along pressure ring slot, along plastics annular groove to
On be evenly equipped with multiple traveller holes parallel with nut axle center, each traveller hole is equipped with a screw hole, screw hole and nut upwards
The upper surface of shell communicates；Holding screw is placed in screw hole, and traveller is placed in traveller hole, fills liquid plastics in plastics annular groove,
Compression ring is placed in pressure ring slot.
Further, the multiple traveller hole is uniformly distributed on nut shell.
Further, the traveller hole is 2-8.
Further, the length of the traveller 3 is less than the length in traveller hole 12 and the sum of the height of plastics annular groove 13.
Further, the length of the compression ring is greater than the length for compressing annular groove.
Further, the holding screw pushes traveller when tightening, and traveller squeezes liquid plastics, then passes through liquid plastics
It squeezes pressure ring and generates displacement T downwards, wherein the size of T is 2-4mm.
Further, the holding screw soket head cap screw.
Further, the traveller is identical as the diameter in traveller hole.
Further, the traveller hole is 2-4.
The beneficial effects of the present invention are: implementation through the invention pushes traveller to enter fluidity and moulds using housing screw
The compression force mechanism expected and combined with pressure ring, is made when being fastened using nut of the present invention, the process of compression
Only axial pressing force, other directions by any external force, not ensure that the Set and Positioning precision of part, while also reduce operator
Labor intensity, furthermore, it is thus also avoided that using conventional nut generate large torque and big radial force to parts fixation positioning accurate
The influence of degree greatly improves the reliability of compression.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram of the section structure of the invention；
Fig. 3 is the schematic diagram of the section structure of nut shell of the invention；
Fig. 4 is the structural schematic diagram that the present invention is compressed when installing and using；
In figure: 1- nut shell, 11- screw hole, 12- traveller hole, 13- plastics annular groove, 14- pressure ring slot, 2- holding screw, 3-
Traveller, 4- liquid plastics, 5- compression ring.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figure 1-3, a kind of big pressure nut of micro- torque, including nut shell 1, holding screw 2, traveller 3 and pressure
Tight ring 5, wherein 1 lower end surface of nut shell is equipped with a circle pressure ring slot 14, is equipped with a circle plastics annular groove 13, edge upwards along pressure ring slot 14
Plastics annular groove 13 is evenly equipped with multiple traveller holes 12 parallel with nut axle center upwards, each traveller hole 12 is equipped with one upwards
Screw hole 11, screw hole 11 are communicated with the upper surface of nut shell 1；Holding screw 2 is placed in screw hole 11, and traveller 3 is placed in traveller hole 12
In, liquid plastics 4 are filled in plastics annular groove 13, compression ring 5 is placed in pressure ring slot 14.
Further, the multiple traveller hole 12 is uniformly distributed on nut shell 1.
Further, the traveller hole 12 is 3-8.
Further, the length of the traveller 3 is greater than the length in traveller hole 12.
Further, the length of the traveller 3 is less than the length in traveller hole 12 and the sum of the height of plastics annular groove 13.
Further, the holding screw 2 pushes traveller 3 when tightening, and traveller 3 squeezes liquid plastics 4, then passes through fluidity
Plastics 4 squeeze pressure ring 5 and generate displacement T downwards, wherein the size of T is 2-4mm.
Further, the holding screw 2 is soket head cap screw.
Further, the traveller 3 is identical as the diameter in traveller hole 12.When being installed and used, traveller 3 and traveller
The sealing cooperation of hole 12.
Further, the traveller hole 12 is 2-4.
As shown in figure 4, carrying out in use, holding screw 2 screws out certain distance outward, traveller 3 is mobile at this time, can make to compress
Ring 5 resets, 5 end face of compression ring and 1 end face of nut shell；Nut combination is then tightened to pressing plate with hand, eliminates nut
Gap between pressing plate.Then holding screw 2 is tightened, holding screw 2 pushes traveller 3, and traveller 3 squeezes liquid plastics 4, then passes through
Liquid plastics 4 squeeze the mobile distance T of compression ring 5.Due to all excluding in all gaps, distance T is entirely to compress
The elastic deformation amount of device.
According to the principle of liquid pressure, liquid plastics 4 are identical with the pressure to traveller 3 to compression ring 5, pressure and area at
Direct ratio, 5 face area of compression ring is tens times of single 3 face area of traveller, therefore screw 2 can put the thrust of traveller 3
Several ten times larger, very big axial force will be generated by gently turning holding screw 2.
Claims (9)
1. a kind of big pressure nut of micro- torque, it is characterised in that: including nut shell (1), holding screw (2), traveller (3) and
Compression ring (5), wherein nut shell (1) lower end surface is equipped with circle pressure ring slot (14), is equipped with a circle modeling upwards along pressure ring slot (14)
Expect annular groove (13), is evenly equipped with multiple hole axles traveller hole (12) parallel with nut axle center upwards along plastics annular groove (13), each
Traveller hole (12) is equipped with a screw hole (11) upwards, and screw hole (11) is communicated with the upper surface of nut shell (1)；Holding screw
(2) it is placed in screw hole (11), traveller (3) is placed in traveller hole (12), is filled in plastics annular groove (13) liquid plastics (4), is compressed
Ring (5) is placed in pressure ring slot (14).
2. micro- big pressure nut of torque as described in claim 1, it is characterised in that: the multiple traveller hole (12) is in nut shell
Body is uniformly distributed on (1).
3. micro- big pressure nut of torque as described in claim 1, it is characterised in that: the traveller hole (12) is 2-8.
4. micro- big pressure nut of torque as described in claim 1, it is characterised in that: the length of the traveller (3) is less than traveller
The length in hole (12) and the sum of the height of plastics annular groove (13).
5. micro- big pressure nut of torque as described in claim 1, it is characterised in that: the length of the compression ring (5) is greater than pressure
The length of tight annular groove (14).
6. micro- big pressure nut of torque as claimed in claim 5, it is characterised in that: the holding screw (2) pushes away when tightening
Dynamic traveller (3), traveller (3) squeeze liquid plastics (4), then squeeze pressure ring (5) by liquid plastics (4) and generate displacement T downwards,
In, the size of T is 2-4mm.
7. micro- big pressure nut of torque as described in claim 1, it is characterised in that: the holding screw (2) is interior hexagonal spiral shell
Nail.
8. micro- big pressure nut of torque as described in claim 1, it is characterised in that: the traveller (3) and traveller hole (12)
Diameter is identical.
9. micro- big pressure nut of torque as claimed in claim 3, it is characterised in that: the traveller hole (12) is 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384391.6A CN109372875A (en) | 2018-11-20 | 2018-11-20 | A kind of big pressure nut of micro- torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384391.6A CN109372875A (en) | 2018-11-20 | 2018-11-20 | A kind of big pressure nut of micro- torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109372875A true CN109372875A (en) | 2019-02-22 |
Family
ID=65376709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811384391.6A Pending CN109372875A (en) | 2018-11-20 | 2018-11-20 | A kind of big pressure nut of micro- torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109372875A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058436U (en) * | 1989-05-16 | 1990-06-20 | 徐乃江 | Hydraulic locking nut |
| CN201287270Y (en) * | 2008-10-31 | 2009-08-12 | 中国北车集团大连机车研究所有限公司 | Mandrel body for lathe work of pressure booster primary shaft |
| CN102094986A (en) * | 2011-01-23 | 2011-06-15 | 邱金全 | High-voltage micro-torque leakage-free valve |
| CN203330874U (en) * | 2013-06-21 | 2013-12-11 | 徐州工程学院 | Honing head with liquid plastic body |
| CN103639940A (en) * | 2013-12-19 | 2014-03-19 | 吉林大学 | Fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance |
| CN203579221U (en) * | 2013-10-09 | 2014-05-07 | 上海航天精密机械研究所 | Liquid plastic outer supporting self-centering clamping device for machining |
| CN104513438A (en) * | 2013-09-29 | 2015-04-15 | 黄彬 | Liquid plastic for centering fixture |
| CN104511834A (en) * | 2013-09-29 | 2015-04-15 | 黄彬 | Ultra lapping machining centering fixture for bearing inner ring roller |
| CN106989853A (en) * | 2017-05-05 | 2017-07-28 | 北京航空航天大学 | A kind of micro- torque tester |
-
2018
- 2018-11-20 CN CN201811384391.6A patent/CN109372875A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058436U (en) * | 1989-05-16 | 1990-06-20 | 徐乃江 | Hydraulic locking nut |
| CN201287270Y (en) * | 2008-10-31 | 2009-08-12 | 中国北车集团大连机车研究所有限公司 | Mandrel body for lathe work of pressure booster primary shaft |
| CN102094986A (en) * | 2011-01-23 | 2011-06-15 | 邱金全 | High-voltage micro-torque leakage-free valve |
| CN203330874U (en) * | 2013-06-21 | 2013-12-11 | 徐州工程学院 | Honing head with liquid plastic body |
| CN104513438A (en) * | 2013-09-29 | 2015-04-15 | 黄彬 | Liquid plastic for centering fixture |
| CN104511834A (en) * | 2013-09-29 | 2015-04-15 | 黄彬 | Ultra lapping machining centering fixture for bearing inner ring roller |
| CN203579221U (en) * | 2013-10-09 | 2014-05-07 | 上海航天精密机械研究所 | Liquid plastic outer supporting self-centering clamping device for machining |
| CN103639940A (en) * | 2013-12-19 | 2014-03-19 | 吉林大学 | Fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance |
| CN106989853A (en) * | 2017-05-05 | 2017-07-28 | 北京航空航天大学 | A kind of micro- torque tester |
Non-Patent Citations (1)
| Title |
|---|
| 林文焕等: "《机床夹具设计》", 31 August 1987 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20190222 |