CN206397911U - A kind of rotating shaft - Google Patents
A kind of rotating shaft Download PDFInfo
- Publication number
- CN206397911U CN206397911U CN201621422129.2U CN201621422129U CN206397911U CN 206397911 U CN206397911 U CN 206397911U CN 201621422129 U CN201621422129 U CN 201621422129U CN 206397911 U CN206397911 U CN 206397911U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- axis body
- spigot
- keyway
- expansion piece
- 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.)
- Active
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of rotating shaft, the problem of there is certain defect by way of bolt compresses key and keyway in the prior art is solved, its drip irrigation device is：A kind of rotating shaft, set up separately including axis body and with axis body in the first shaft end and the second shaft end of axis body both sides, keyway is provided with the axis body, some gim pegs are provided with the keyway, connecting cavity is offered in the middle part of the gim peg, the connecting cavity is connected with bulge, the bulge includes expansible plug and is connected to the expansion piece of expansible plug side wall circumferential position, the side wall of the gim peg circumferentially offers some through holes passed for expansion piece, the expansible plug includes the first spigot being threadedly coupled with connecting cavity and the second spigot for being pushed outwardly expansion piece, reached the effect easily key being pressed in keyway.
Description
Technical field
The utility model is related to mechanical fitting, more particularly to a kind of rotating shaft.
Background technology
Axle is support rotary part and turned round therewith, to transmit motion, moment of torsion or the machine components of moment of flexure, often to wear
Used between within the bearing or in the middle of wheel or in the middle of gear, generally metal round rod, it is in square also to have small part.In the rotating shaft of part
Keyway can be opened up, makes that between part and rotating shaft in rotating shaft torsion can be produced by the installation key on keyway and by key
Square.
But key is when being arranged on keyway, contact area between the two is small, therefore lifting surface area is small, installs solid by key
When connecting surely, there is a situation where to come off or slide etc. it is unstable, in order to solve the above problems, as shown in figure 9, people would generally be
Opened up on key 8 and open up the connecting hole connected with counter sink 81 on counter sink 81, keyway 5, counter sink is arranged in by fixing bolt 9
81 and connecting hole, the effect for compressing key 8 and keyway 81 can be reached.But in practical operation, due to being additional bolt, even
The positioning for connecing hole is inconvenient, while the screw thread fitness of the connecting hole on the connecting hole and keyway on key is poor, therefore this kind adds
Gu there is certain defect in mode.
Utility model content
The purpose of this utility model is to provide a kind of rotating shaft, and key easily can be pressed in keyway by it.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of rotating shaft, including axis body and set up separately with axis body in the first shaft end and the second shaft end of axis body both sides, the axle
It is provided with body on keyway, the keyway and is provided with some gim pegs, connecting cavity, the company is offered in the middle part of the gim peg
Connect chamber and be connected with bulge, the bulge includes expansible plug and is connected to the expansion piece of expansible plug side wall circumferential position, institute
The side wall for stating gim peg circumferentially offers some through holes passed for expansion piece, and the expansible plug includes being threadedly coupled with connecting cavity
The first spigot and be pushed outwardly the second spigot of expansion piece.
By using above-mentioned technical proposal, the design of keyway can be such that key is arranged on keyway, make to be arranged in rotating shaft
The gim peg on moment of torsion, keyway can be produced between part and rotating shaft in the installation of key, can be for positioning key, when key and keyway
After abutting, expansible plug is moved on connecting portion by the spigot of control first on bulge, control is reached by the second spigot
Expansion piece passes the purpose of gim peg, and the expansion piece passed is connected on key, key is pressed on keyway, difficult for drop-off.
Preferably, the end of second spigot, which is connected with work department, the work department, offers working hole, it is described
The diameter of work department is more than the diameter of the first spigot, the first spigot of the second spigot conical surface transition and work department.
By using above-mentioned technical proposal, the second spigot is in round table-like with stub end and small head end, passes through instrument control
The working hole of work department processed, when reaching that the first spigot of control is moved down, the side meeting extrusion expansion piece of the second spigot makes expansion
Piece ejects gim peg.
Preferably, the connecting cavity is connected with some slippage slots, the surface of the expansion piece is provided with slipping block, institute
State slipping block to be arranged in slippage slot, dynamic clamping head and quiet clamping head is additionally provided between the bottom land of the slipping block and slippage slot.
By using above-mentioned technical proposal, during the first spigot is moved up, the elastic force of dynamic clamping head and quiet clamping head can drive cunning
Move block to move to bottom land, slipping block drives expansion piece, makes it to axis direction resilience, makes inside its retraction gim peg, now may be used
So that key easily to be removed from keyway.
Preferably, first shaft end is circumferentially provided with some size identical joint faces, the adjacent joint face it
Between be provided with size shape identical connection arc.
By using above-mentioned technical proposal, the setting of joint face can make the connection of the parts such as first axle end and bearing more
Closely, convenient positioning；The setting of connection arc can reduce the stress concentration between adjacent connection surfaces, improve the intensity of axis body,
Improve physical characteristic.
Preferably, being provided with the first arc sections being connected with keyway on the position of the close end face of first shaft end.
By using above-mentioned technical proposal, the design of the first arc sections can reduce the end face of joint face and the first shaft end
Between stress concentration, improve the intensity of axis body, improve physical characteristic.
Preferably, being connected between second shaft end and axis body by the second arc sections, second arc sections include
The first fillet being connected with the second axle body and the second fillet being connected with axis body, first fillet and the second fillet are reversely set
Put.
By using above-mentioned technical proposal, the design of the first fillet reduces the stress collection of the second shaft end and the second arc sections
Middle phenomenon, the design of the second fillet reduces the stress concentration between the second arc sections and axis body, so that the second arc sections
Design reduces the stress concentration between the second shaft end and axis body, improves the intensity of axis body, improves physical characteristic.
Preferably, circumferentially offering annular groove parallel to each other on the axis body, the side wall of the annular groove is provided with barb.
By using above-mentioned technical proposal, annular groove can be used for setting sealing ring, and the design of barb can make sealing ring and ring
Groove is interference fitted, and makes the connection of sealing ring and annular groove even closer, is difficult to deviate from from annular groove.
Preferably, the surface of the rotating shaft is provided with chromium coating.
By using above-mentioned technical proposal, chromium is easy to aoxidize in atmosphere and generates one layer of very thin dense oxidation film,
This tunic has good mechanical strength, and transparent, product surface is kept gloss for a long time, is provided with the change of the axle of chromium coating
Learn stability preferably, and with hardness is high, wear-resisting, reflective function is good, can resist the invasion and attack of various corrosive mediums, and compared to
Other coats of metal, different with other coats of metal, the friction factor of chrome plating is relatively low.
In summary, the utility model has the advantages that：
1st, the rotating shaft is by the design of keyway, can on keyway installation key and the part for making to be arranged in rotating shaft by key
Moment of torsion can be produced between rotating shaft, by the cooperation of gim peg and bulge, can be improved easily by key and keyway clamping
The assembly precision of rotating shaft；
2nd, the rotating shaft can be reduced by the annular groove with chamfering, the first arc sections, the second arc sections, the design for connecting arc
The stress concentration on axis body surface, improves the intensity of axis body, improves physical characteristic.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of rotating shaft；
Fig. 2 is a kind of global sections schematic diagram of rotating shaft；
Fig. 3 is the schematic cross-section for the gim peg for not installing bulge；
Fig. 4 is the schematic cross-section for the gim peg for installing bulge；
The enlarged drawing that Fig. 5 is A in Fig. 4；
Fig. 6 is the schematic diagram of the first shaft end；
Fig. 7 is the schematic diagram of the second shaft end；
Fig. 8 is the scheme of installation of key in the present embodiment；
Fig. 9 is the scheme of installation of key in the prior art.
In figure, 1, axis body；2nd, the first shaft end；21st, joint face；22nd, arc is connected；23rd, the first arc sections；3rd, the second shaft end；
31st, the second arc sections；32nd, the first fillet；33rd, the second fillet；4th, annular groove；41st, barb；5th, keyway；6th, gim peg；61st, through hole；
62nd, connecting cavity；621st, the first connecting cavity；622nd, the second connecting cavity；623rd, slippage slot；7th, bulge；71st, expansible plug；713rd,
One spigot；712nd, the second spigot；711st, work department；714th, working hole；72nd, expansion piece；721st, slipping block；73rd, dynamic clamping head and quiet clamping head；
8th, key；81st, counter sink；9th, fixing bolt.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, a kind of rotating shaft, the surface of rotating shaft is provided with chromium coating, including axis body 1 and sets up separately in 1 liang of axis body
The first shaft end 2 and the second shaft end 3 of side.The side wall of axis body 1 circumferentially offers two annular grooves 4 parallel to each other, and the side wall of annular groove 4 is equal
Cave inward, form symmetrical barb 41.
Referring to Fig. 3 to Fig. 5, the surface of axis body 1 is further opened with being provided with two on keyway 5, keyway 5 to be integrally formed with axis body 1
Gim peg 6, the side wall of gim peg 6 offers some through holes 61, and the middle part of gim peg 6 offers connecting cavity 62, connecting cavity 62
Include first connecting cavity 621 and some second connecting cavity 622 that with through hole 61 is connected of the opening towards the end face of gim peg 6, the
One connecting cavity 621 is connected with the second connecting cavity 622.Bulge 7 is connected with connecting cavity 62, bulge 7 includes wearing being connected to
Expansible plug 71 and the expansion piece 72 being arranged in the second connecting cavity 622 in first connecting cavity 621.Expansible plug 71 includes and first
The first spigot 713 that connecting cavity 621 is threadedly coupled, and the second spigot 712 being connected with the first spigot 713, the second spigot 712
The other end be connected with work department 711, the diameter of work department 711 is more than the diameter of the first spigot 713, and the second spigot 712 passes through
The first spigot of conical surface connection transition 713 and work department 711, the end of work department 711 are provided with working hole 714, and work department 711 is
Inner hexagonal hole.
Referring to Fig. 4 and Fig. 5, one end of expansion piece 72 and the side wall of the second spigot 712 are abutted against, the other end of expansion piece 72
Can slide in the connecting cavity 62 and pass through hole 61, the top of the second connecting cavity 622 offers slippage slot 623, expansion piece 72 it is upper
Surface is provided with slipping block 721, and slipping block 721 is arranged in slippage slot 623, and slipping block 721 is with slippage slot 623 by proximal wall
The dynamic clamping head and quiet clamping head 73 for being in compressive state all the time is provided between bottom land, dynamic clamping head and quiet clamping head 73 is spring.
Referring to Fig. 6 and Fig. 7, the first shaft end 2 is circumferentially provided with six shapes and area identical joint face 21, joint face
Arc 22 is connected by shape and area identical to connect, first is passed through between the end face of the shaft end 2 of joint face 21 and first between 21
Arc sections 23 are connected.The diameter of second shaft end 3 is less than axis body 1, is connected between the second shaft end 3 and axis body 1 by the second arc sections 31
Connect, the second arc sections 31 include the first fillet 32 of the second shaft end 3 of connection and the second arc sections 31 and are connected the second arc sections 31
With the second fillet 33 of axis body 1, the first fillet 32 and the second fillet 33 are oppositely arranged.
The installation process of key：
Referring to Fig. 8, the key 8 for offering counter sink 81 is abutted by gim peg 6 with the bottom land of keyway 5, the countersunk head on key 8
Hole 81 includes the first connecting hole and the second connecting hole, and the diameter of the second connecting hole is more than the first connecting hole.Instrument is stretched into work
In hole 714, control expansible plug 71 is rotated, and the first spigot 713 of expansible plug 71 is threadingly moved down in face, makes the second spigot 712 simultaneously
Move down, the conical surface of the second spigot 712 is connected to the end of expansion piece 72, with moving down for the second spigot 712, the second spigot 712
Diameter positioned at the position of expansion piece 72 gradually increases, and expansion piece 72 is slid by the second connecting cavity 622 towards the direction of through hole 61, extremely
Expansible plug 71 is threaded to the end face that working hole 714 is connected to gim peg 6, and through hole 61 is released in the part of expansion piece 72 by the second spigot 712
Interior, expansion piece 72 is connected to the end face of the first connecting hole, will be compressed between key and keyway 5.
The demolishing process of key：
Instrument is stretched into working hole 714, reverse installation process rotary expansion bolt 71, the first spigot 713 of expansible plug 71
Threadingly face is moved up, and makes the second spigot 712 while moving up, and the conical surface of the second spigot 712 is connected to the end of expansion piece 72, with
Second spigot 712 is moved up, and the diameter that the second spigot 712 is located at expansion piece 72 position is gradually reduced, and the spring of compression is forced in
Slipping block 721, moves its side wall along the reverse gim peg 6 of slippage slot 623, and slipping block 721 drives expansion piece 72 to gim peg 6
First connecting cavity 621 is moved, and during which expansion piece 72 is connected to the side wall of the second spigot 712 all the time, to the second spigot 712 on move to
Completely disengage from expansion piece 72, now expansion piece 72 is slid completely into the second connecting cavity 622, now can by expansible plug 71 by key from
Removed in keyway 5.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of rotating shaft, including axis body (1) and set up the first shaft end (2) and the second axle in axis body (1) both sides separately with axis body (1)
Hold (3), it is characterised in that be provided with the axis body (1) on keyway (5), the keyway (5) and be provided with some gim pegs (6),
Connecting cavity (62) is offered in the middle part of the gim peg (6), the connecting cavity (62) is connected with bulge (7), the bulge
(7) include expansible plug (71) and be connected to the expansion piece (72) of expansible plug (71) side wall circumferential position, the gim peg (6)
Side wall circumferentially offers some through holes (61) passed for expansion piece (72), and the expansible plug (71) includes and connecting cavity (62) spiral shell
The first spigot (713) of line connection and the second spigot (712) for being pushed outwardly expansion piece (72).
2. a kind of rotating shaft according to claim 1, it is characterised in that the end of second spigot (712) is connected with work
Make to offer working hole (714) on portion (711), the work department (711), the diameter of the work department (711) is more than the first bolt
The diameter in portion (713), the second spigot (712) first spigot of conical surface transition (713) and work department (711).
3. a kind of rotating shaft according to claim 1, it is characterised in that the connecting cavity (62) is connected with some slippage slots
(623), the surface of the expansion piece (72) is provided with slipping block (721), and the slipping block (721) is arranged at slippage slot
(623) in, dynamic clamping head and quiet clamping head (73) is additionally provided between the slipping block (721) and the bottom land of slippage slot (623).
4. a kind of rotating shaft according to claim 1, it is characterised in that first shaft end (2) is circumferentially provided with some big
Size shape identical connection arc (22) is provided between small identical joint face (21), the adjacent joint face (21).
5. a kind of rotating shaft according to claim 4, it is characterised in that the position of the close end face of first shaft end (2)
On be provided with the first arc sections (23) being connected with joint face (21).
6. a kind of rotating shaft according to claim 1, it is characterised in that pass through between second shaft end (3) and axis body (1)
Second arc sections (31) are connected, second arc sections (31) include the first fillet (32) for being connected with the second axle body (1) and with
The second fillet (33) of axis body (1) connection, first fillet (32) and the second fillet (33) are oppositely arranged.
7. a kind of rotating shaft according to claim 1, it is characterised in that circumferentially offered on the axis body (1) parallel to each other
Annular groove (4), the side wall of the annular groove (4) is provided with barb (41).
8. a kind of rotating shaft according to claim 1, it is characterised in that the surface of the rotating shaft is provided with chromium coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621422129.2U CN206397911U (en) | 2016-12-23 | 2016-12-23 | A kind of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621422129.2U CN206397911U (en) | 2016-12-23 | 2016-12-23 | A kind of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397911U true CN206397911U (en) | 2017-08-11 |
Family
ID=59510781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621422129.2U Active CN206397911U (en) | 2016-12-23 | 2016-12-23 | A kind of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397911U (en) |
-
2016
- 2016-12-23 CN CN201621422129.2U patent/CN206397911U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2075488A1 (en) | A selfadapting screw transmission mechanism with variable lead | |
| CN203098560U (en) | Roller bearing | |
| CN206397911U (en) | A kind of rotating shaft | |
| CN213393080U (en) | Bolt dismounting structure with tail end capable of being filled with butter | |
| CN101881136B (en) | Compound seal roller bit | |
| CN203822815U (en) | Anti-looseness bolt | |
| CN207316004U (en) | It is a kind of to become the tripod pulley blocks rolling screw pair for rotating to be linear motion | |
| CN204704348U (en) | Rolling screw mechanism | |
| CN212985666U (en) | Telescopic and rotary power cylinder | |
| CN208962423U (en) | A kind of screw machine screw rod disassembly head | |
| CN208595130U (en) | Double base expanding and base expanding anchor bolts | |
| CN210452536U (en) | Oil pressure spanner pulse device | |
| CN206280321U (en) | A kind of efficient hand-operated direction valve | |
| CN104141684B (en) | Hydraulic self-adapting formula ball bearing | |
| CN204571869U (en) | A kind of anticreep eccentric abrasion prevention paraffin cutting oil pumping rod centering device | |
| CN207495082U (en) | A kind of lathe linear slide friction extensible guide brake gear | |
| CN204739085U (en) | Bearing with reinforcing load -carrying ability and stationarity parts | |
| CN207064186U (en) | A kind of ball bearing mode connecting rod for freezer compressor | |
| CN102101184A (en) | Clamp for drilling spiral distribution hole on bush | |
| CN206220852U (en) | Continuous pipe drilling well directional orientation tool | |
| CN205851772U (en) | A kind of clutch can fixture | |
| CN113280031B (en) | Strong-stability special-shaped double-screw assembly for mechanical configuration | |
| CN217301269U (en) | Combined bearing of cylindrical roller and joint inner ring | |
| CN204942261U (en) | A kind of can the drum type tooth pivoting support of beat | |
| CN207750335U (en) | A kind of extension rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |