CN107524686A - A kind of loosing-proof device of restricted clearance high-speed bearing nut - Google Patents
A kind of loosing-proof device of restricted clearance high-speed bearing nut Download PDFInfo
- Publication number
- CN107524686A CN107524686A CN201710989940.1A CN201710989940A CN107524686A CN 107524686 A CN107524686 A CN 107524686A CN 201710989940 A CN201710989940 A CN 201710989940A CN 107524686 A CN107524686 A CN 107524686A
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- China
- Prior art keywords
- bearing
- bearing nut
- main shaft
- axial
- nut
- 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
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- 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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Support Of The Bearing (AREA)
Abstract
The present invention relates to a kind of loosing-proof device of the high-speed bearing nut suitable for restricted clearance, specially a kind of new bearing lock washer and rotary shaft and bearing nut fit structure.In order to overcome startup, speed change, shutdown phase bearing nut and rotary shaft that relative motion occurs, the limitation of the balance quality and installing space of high speed shafting is considered, the invention provides a kind of simple in construction, effective bearing nut loosing-proof device.The device does not increase friction power loss, convenient that shaft end dismounting and adjustment gap are carried out in the cavity of structure constraint.The loosing-proof device of the present invention is mainly made up of main shaft, bearing, lock washer and bearing nut.The shallow slot of the lamellar body and axle of locking washer coordinates, limit the relative motion of circumferencial direction between the two, the shallow slot of the lamellar body and bearing nut of locking washer simultaneously coordinates, limit relative motion axial between the two, this ensures that relative displacement does not occur between bearing nut and rotary shaft, bearing's looseness and tension are avoided.
Description
Technical field
The present invention relates to MACHINERY JOINT field, specially a kind of high-speed bearing nut suitable for restricted clearance is prevented
Loosening device, it is a kind of new bearing lock washer and rotary shaft and bearing nut fit structure.
Background technology
For the shafting of high speed rotation, the fine or not direct shadow of shafting balancing performance, lightweight performance and bearing anti-loosing effect
The Stability and dependability of acoustic system.Balance quality can be adjusted by dynamic balance running, and lightweight performance is mainly from the material of shafting
Material is started with.And for the locking of bearing, its axial float is typically limited using bearing nut, for screw connection structure, when
At a high speed rotation, shock and vibration, varying load or high temperature, temperature change it is big when, screw thread can loosen, and cause bearing to be altered
It is dynamic, seriously endanger the safe to use of axle.
The locking conventional method of bearing be by the way of the locking i.e. double nut of rubbing, advantage be it is simple in construction, it is easy for installation,
Shortcoming is the method meeting increasing friction force, efficiency is had a great influence when rotating at a high speed, and reliability and stability is poor, it may appear that
Locking failure and tension phenomenon.Machinery it is locking it is general use split pin and stop washer, and common form split pin and stop pad
Circle is not particularly suited for the situation of structure constraint, and machinery is locking can change shafting balancing performance, and installation and debugging difficulty is big.
The environment that the present invention uses is the high-speed rotating shaft system of underwater heat power ROV transmission system, as shown in figure 1, main
Axle 1 is coordinated by bearing 2 and the pipeline shell 5 of high-speed rotating shaft system, due to underwater heat power ROV inner space office itself
Promote, all parts installation is close, so the own dimensions of pipeline shell 5 are smaller, and main shaft 1 needs to stretch into the inside of pipeline shell 5 peace
Dress, its installing space is just smaller, so conventional split pin and stop washer can not all install in this restricted attachment space.
The content of the invention
The application environment of the present invention is the high-speed rotating shaft system of underwater heat power ROV transmission system, under water heat power
Relative motion occurs for ROV startup, speed change, shutdown phase bearing nut 4 and main shaft 1, it is necessary to be prevented using the locking means of bearing
Bearing play.High-speed rotating shaft system efficiency is had a great influence in order to solve existing friction locking means, and the locking means of machinery by
In installing space is limited can not install the problem of, the present invention considers the balance quality of high speed shafting and the limit of installing space
System, it is proposed that a kind of loosing-proof device of restricted clearance high-speed bearing nut, the device does not increase friction power loss, convenient in structure
Shaft end dismounting and adjustment gap are carried out in limited cavity.
The technical scheme is that：
A kind of loosing-proof device of restricted clearance high-speed bearing nut, including main shaft (1), bearing (2), lock washer
(3) coordinated with bearing nut (4), main shaft (1) by bearing (2) and outside restricted clearance housing (5)；Bearing (2) outer ring passes through
Back-up ring (6) axial constraint；The bearing nut (4) is fixed with main shaft (1) threaded one end, lock washer (3) be in bearing (2) and
Between bearing nut (4), bearing nut (4) will lock washer (3) and bearing (2) inner ring axial compression；
It is characterized in that：
The lock washer (3) is made up of annular ring and some thin slices；Some thin slices are circumferentially distributed along annular ring, single thin
Piece is axial arranged along annular ring, and length of the thin slice along annular ring axial direction is more than one end that main shaft (1) coordinates with bearing nut (4)
External thread section axial length；Thin slice one end is fixedly connected with annular ring inner edge or global formation；
The external thread section surface of one end that the main shaft (1) coordinates with bearing nut (4) is provided with some axial notches, axially
Number of recesses is no less than thin slice number；Axial notch depth on the main shaft (1) is not less than sheet thickness；
Some axial notches are provided with the inner surface of the bearing nut (4)；
After the lock washer (3) is enclosed on main shaft (1), thin slice is in the axial notch on main shaft (1)；Work as axle
Hold after nut (4) is assemblied on main shaft (1), by adjusting the thickness of annular ring in lock washer (3), can make to work as bearing nut
(4) when will lock washer (3) with bearing (2) inner ring axial compression, the axial notch and flap position of bearing nut (4) inner surface
Also correspond to；One section of thin slice stretching main shaft (1) end turns up, and a part of structure of thin slice is in the axle of bearing nut (4) inner surface
Into groove, and thin slice outer end is fixed with bearing nut (4) back bending.
Further preferred scheme, the loosing-proof device of the restricted clearance high-speed bearing nut, it is characterised in that：It is described
Lead oblique angle in thin slice both sides.
Beneficial effect
The present invention is simple in construction, does not increase friction power loss, and shaft end dismounting can be easily carried out in restricted clearance and is adjusted
Whole gap.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1：Bearing nut loosing-proof device scheme of installation；
Fig. 2：Bearing nut loosing-proof device schematic diagram；
Fig. 3：Main shaft schematic diagram；
Fig. 4：Lock washer schematic diagram；
Fig. 5：Bearing nut schematic diagram；
Wherein：1st, main shaft 2, bearing 3, lock washer 4, bearing nut 5, housing 6, back-up ring.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
The present embodiment is to be used for certain underwater heat power ROV high-speed rotating machine dynamical system, for preventing bearing nut
The situation of loosening occurs.
As depicted in figs. 1 and 2, the loosing-proof device of the restricted clearance high-speed bearing nut in the present embodiment, including main shaft
1st, bearing 2, lock washer 3 and bearing nut 4, main shaft 1 are coordinated by bearing 2 and outside restricted clearance housing 5；The outer ring of bearing 2
Pass through the axial constraint of back-up ring 6；The bearing nut 4 is fixed with the threaded one end of main shaft 1, and lock washer 3 is in bearing 2 and bearing spiral shell
Between mother 4, bearing nut 4 will lock washer 3 and the inner ring axial compression of bearing 2.
As shown in figure 4, the lock washer 3 is based on autonomous Design structure on the basis of typical circular gasket construction, by
Annular ring and some thin slices composition；Three thin slices are circumferentially uniformly distributed along annular ring, and single sheet is axial arranged along annular ring；For
Easy for installation, oblique angle is led in thin slice both sides；Length of the thin slice along annular ring axial direction is more than one end that main shaft 1 coordinates with bearing nut 4
External thread section axial length, can realize that thin slice outer end is turned up and back bending；Thin slice one end be fixedly connected with annular ring inner edge or
Global formation.Because that can be bent during use in the present embodiment, the repeatability and validity that are used for guarantee lock washer,
The increase of high speed shafting quality is reduced as far as possible, and lock washer is obtained using the good material global formation of lightweight, plasticity.
The main shaft 1 is reprocessed in original structure, the external screw thread segment table of its one end coordinated with bearing nut 4
Face is provided with three axial notches being uniformly distributed circumferentially；Axial notch depth on the main shaft 1 is not less than sheet thickness, with
It is easy to thin slice to be placed in groove, and does not hinder bearing nut 4 to coordinate with the screw thread of main shaft 1.
The bearing nut 4 and reprocessed in original structure, be provided with its inner surface three it is circumferentially equal
The axial notch of even distribution.
After the lock washer 3 is enclosed on main shaft 1, three thin slices are respectively in three axial notches on main shaft 1；It
Bearing nut 4 is screwed in afterwards, and after bearing nut 4 is assemblied on main shaft 1, the thickness of annular ring in lock washer 3 is adjusted by grinding
Degree, make when bearing nut 4 will lock washer 3 with 2 inner ring axial compression of bearing, three axial directions of the inner surface of bearing nut 4 are recessed
Groove is also corresponding with flap position；Thin slice is stretched out into the end of main shaft 1 afterwards one section turns up, and a part of structure of thin slice is in bearing
In the axial notch of the inner surface of nut 4, then thin slice outer end and the back bending of bearing nut 4 fixed.
The groove of the thin slice and axle 1 of locking washer 3 coordinates, and limits the relative motion of circumferencial direction between the two, simultaneously
Lock groove of the thin slice of washer 3 also with bearing nut 4 to coordinate, limit relative motion axial between the two, thus can
Ensure that relative displacement does not occur between bearing nut and rotary shaft, avoid bearing's looseness and tension, so as to ensure to revolve in high speed
Turn, shock and vibration, varying load or high temperature, temperature change it is big when bearing nut 4 and rotary shaft in circumferencial direction and axial direction
Relative motion does not occur.More valve structures can effectively reduce the vibration of high speed shafting simultaneously, and polarization is good, and balance is high, reduces
The number of dismounting.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (2)
1. a kind of loosing-proof device of restricted clearance high-speed bearing nut, including main shaft (1), bearing (2), lock washer (3) with
Bearing nut (4), main shaft (1) are coordinated by bearing (2) and outside restricted clearance housing (5)；Bearing (2) outer ring passes through back-up ring
(6) axial constraint；The bearing nut (4) is fixed with main shaft (1) threaded one end, and lock washer (3) is in bearing (2) and bearing
Between nut (4), bearing nut (4) will lock washer (3) and bearing (2) inner ring axial compression；
It is characterized in that：
The lock washer (3) is made up of annular ring and some thin slices；Some thin slices are circumferentially distributed along annular ring, single sheet edge
Annular ring is axial arranged, and length of the thin slice along annular ring axial direction is more than the outer spiral shell of one end that main shaft (1) coordinates with bearing nut (4)
Line section axial length；Thin slice one end is fixedly connected with annular ring inner edge or global formation；
The external thread section surface of one end that the main shaft (1) coordinates with bearing nut (4) is provided with some axial notches, axial notch
Quantity is no less than thin slice number；Axial notch depth on the main shaft (1) is not less than sheet thickness；
Some axial notches are provided with the inner surface of the bearing nut (4)；
After the lock washer (3) is enclosed on main shaft (1), thin slice is in the axial notch on main shaft (1)；When bearing spiral shell
After female (4) are assemblied on main shaft (1), by adjusting the thickness of annular ring in lock washer (3), it can make to work as bearing nut (4)
When will lock washer (3) with bearing (2) inner ring axial compression, the axial notch and flap position of bearing nut (4) inner surface
It is corresponding；One section of thin slice stretching main shaft (1) end turns up, and a part of structure of thin slice is in the axial direction of bearing nut (4) inner surface
In groove, and thin slice outer end is fixed with bearing nut (4) back bending.
2. the loosing-proof device of restricted clearance high-speed bearing nut according to claim 1, it is characterised in that：The thin slice two
Lead oblique angle in side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989940.1A CN107524686A (en) | 2017-10-23 | 2017-10-23 | A kind of loosing-proof device of restricted clearance high-speed bearing nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989940.1A CN107524686A (en) | 2017-10-23 | 2017-10-23 | A kind of loosing-proof device of restricted clearance high-speed bearing nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107524686A true CN107524686A (en) | 2017-12-29 |
Family
ID=60685001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710989940.1A Pending CN107524686A (en) | 2017-10-23 | 2017-10-23 | A kind of loosing-proof device of restricted clearance high-speed bearing nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524686A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US267269A (en) * | 1882-11-07 | Nut-lock | ||
| GB190827870A (en) * | 1908-12-22 | 1909-10-21 | Frederick Lamplough | Improvements in Means for Locking Nuts, Bolts and Screw Studs. |
| US1142345A (en) * | 1913-11-25 | 1915-06-08 | John K Major | Nut-lock. |
| SU1760198A1 (en) * | 1990-12-25 | 1992-09-07 | Войсковая часть 27177 | Locking unit |
| CN2152931Y (en) * | 1992-05-29 | 1994-01-12 | 本溪钢铁公司 | Check thread fastening part |
| JP2005273890A (en) * | 2004-03-22 | 2005-10-06 | Etsuzo Kuinose | Locking of bolt and nut by locking washer |
| US7000995B2 (en) * | 2003-04-16 | 2006-02-21 | George Allan Hagelthorn | High-integrity interlocking nut and washer system |
| CN201166044Y (en) * | 2007-05-14 | 2008-12-17 | 田渝生 | Screw thread locking mechanism |
| US20100320832A1 (en) * | 2009-06-22 | 2010-12-23 | Werner Weigand | Wheel bearing for vehicle axles |
| US8469460B2 (en) * | 2010-06-29 | 2013-06-25 | Arvinmeritor Technology, Llc | Spindle nut assembly |
-
2017
- 2017-10-23 CN CN201710989940.1A patent/CN107524686A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US267269A (en) * | 1882-11-07 | Nut-lock | ||
| GB190827870A (en) * | 1908-12-22 | 1909-10-21 | Frederick Lamplough | Improvements in Means for Locking Nuts, Bolts and Screw Studs. |
| US1142345A (en) * | 1913-11-25 | 1915-06-08 | John K Major | Nut-lock. |
| SU1760198A1 (en) * | 1990-12-25 | 1992-09-07 | Войсковая часть 27177 | Locking unit |
| CN2152931Y (en) * | 1992-05-29 | 1994-01-12 | 本溪钢铁公司 | Check thread fastening part |
| US7000995B2 (en) * | 2003-04-16 | 2006-02-21 | George Allan Hagelthorn | High-integrity interlocking nut and washer system |
| JP2005273890A (en) * | 2004-03-22 | 2005-10-06 | Etsuzo Kuinose | Locking of bolt and nut by locking washer |
| CN201166044Y (en) * | 2007-05-14 | 2008-12-17 | 田渝生 | Screw thread locking mechanism |
| US20100320832A1 (en) * | 2009-06-22 | 2010-12-23 | Werner Weigand | Wheel bearing for vehicle axles |
| US8469460B2 (en) * | 2010-06-29 | 2013-06-25 | Arvinmeritor Technology, Llc | Spindle nut assembly |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171229 |