CN207188820U - A kind of core shaft structure - Google Patents
A kind of core shaft structure Download PDFInfo
- Publication number
- CN207188820U CN207188820U CN201721079821.4U CN201721079821U CN207188820U CN 207188820 U CN207188820 U CN 207188820U CN 201721079821 U CN201721079821 U CN 201721079821U CN 207188820 U CN207188820 U CN 207188820U
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- China
- Prior art keywords
- sleeve
- clamp
- mandrel rod
- core shaft
- shaft structure
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Abstract
The utility model discloses a kind of core shaft structure, including mandrel rod and sleeve, described mandrel rod one end is installation end, the other end is drive end, its drip irrigation device is, chute at no less than two is offered along the length direction of mandrel rod in the mandrel rod, the chute arises from the installation end of mandrel rod and gradually become shallower as；No less than two pieces clamps are provided with the sleeve, described clamp one end is movably arranged in the sleeve, and the other end stretches out out of sleeve；The clamp is along the axially arranged of sleeve, and the thickness of clamp is equal to the width of the chute；The position-limit mechanism for making clamp not come off in normality out of sleeve is provided with the sleeve, the core shaft structure also includes fixed mechanism, and the fixed mechanism is used to the sleeve after installation being fixed on mandrel rod.The core shaft structure, which has, to be removed and installed convenience, is fixedly connected with firm advantage to part.
Description
Technical field
It the utility model is related to a kind of core shaft structure.
Background technology
Mandrel is a kind of machine components for connecting rotational parts, in present mechanical field, the interconnection between part,
And then ensure the normal work of large scale equipment.
Existing Authorization Notice No. is that CN105945318A Chinese patent discloses a kind of expanding arbor of knowing clearly, including mandrel,
Expansion sleeve, swelling nut and gland；Swelling nut, gland and expansion sleeve are located on mandrel successively, the side of gland and expansion
Set abuts, and mandrel is provided with boss close to one end of expansion sleeve, expansion sleeve is set for card；First is set to pull knot on gland
Structure, the first interface arrangment being engaged with the first pulling structure is set on expansion sleeve, sets second to pull structure on boss,
The second interface arrangment being engaged with the second pulling structure is set on expansion sleeve.It can support gland by screwing swelling nut
Expansion sleeve is pushed away, so that expansion sleeve expansion is with retaining element.
But this expanding arbor, after part is installed, swelling nut is acted on by one along mandrel axial direction all the time
Power so that easy screw thread easily wears in disassembly and installation part, causes stripped thread so that part installation fixes loosely, and then
Influence the service life of part and the service efficiency of plant equipment.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of core shaft structure, it, which has, tears open
Unload it is easy for installation, firm advantage is fixedly connected to part.
To achieve the above object, the utility model provides following technical scheme：
A kind of core shaft structure, including mandrel rod and sleeve, described mandrel rod one end are installation end, and the other end is drive end,
Chute at no less than two is offered along the length direction of mandrel rod in the mandrel rod, the chute arises from the installation end of mandrel rod
And gradually become shallower as；No less than two pieces clamps are provided with the sleeve, described clamp one end is movably arranged in the sleeve, separately
One end is stretched out out of sleeve；The clamp is along the axially arranged of sleeve, and the thickness of clamp is equal to the width of the chute；It is described
The position-limit mechanism for making clamp not come off in normality out of sleeve is provided with sleeve, the core shaft structure also includes solid
Determine mechanism, the fixed mechanism is used to the sleeve after installation being fixed on mandrel rod.
By using above-mentioned technical proposal, when part is installed, by the installation end insertion sleeve of mandrel rod, sleeve is adjusted
Position makes the clamp on sleeve be caught in the chute in mandrel rod.Part is set on the clamp of mandrel rod installation end, Xiang Xin
The drive end of axostylus axostyle pulls sleeve, and sleeve drives clamp to be slid in chute.Chute arises from the installation end of mandrel rod and gradually become
Shallow, when pulling sleeve, clamp expands outwardly abutting part, and part is fixedly mounted in mandrel rod.By solid after being installed in place
Determine mechanism to fix the position of sleeve, that is, complete the installation of part.Position-limit mechanism is used for clamp before preventing installation and taken off out of sleeve
Fall, prevent because the missing of parts causes part can not install fixation.
Further, the position-limit mechanism includes being arranged on bayonet socket and gudgeon that clamp is located at one end in sleeve, the set
Annular slot and some gudgeon holes are provided with cylinder inwall, the position of the bayonet socket is corresponding with the position of annular slot, described
Gudgeon is inserted into gudgeon hole, is provided with the annular slot for driving clamp to the elasticity of the axial rotation of sleeve
Part.
By using above-mentioned technical proposal, gudgeon is extend into the gudgeon hole in sleeve wall, in the presence of elastic component, card
Axial rotation of the plate to sleeve so that gudgeon and the clamping of gudgeon hole, so that clamp will not come off out of sleeve before installation.
Further, the elastic component is to be set on the elastic washer at the bayonet socket, the elastic washer have to
The trend of sleeve axial shrinkage.
By using above-mentioned technical proposal, by clamp cuff in elastic washer, elastic washer has to set elastic washer
The trend of cylinder axial shrinkage so as to the axial rotation of sleeve, gudgeon and the clamping of gudgeon hole, clamp will not take off clamp out of sleeve
Fall.
Further, the fixed mechanism includes some screwed holes set through sleeve wall thickness, is worn in the screwed hole
Provided with fixing bolt.
By using above-mentioned technical proposal, after attaching components to position, the bolt that is tightened can make the end of fixing bolt
Portion pushes against with mandrel rod, so as to which the position of sleeve be fixed, prevents clamp from loosening, part comes off.
Further, the screwed hole is screw-threaded counterbore.
By using above-mentioned technical proposal, be tightened bolt when, bolt head is fully located in screw-threaded counterbore so that bolt
Head will not be protruded in sleeve wall.
Further, there are some stopper slots along the axially arranged of mandrel rod in the mandrel rod, the sleeve is arranged on core
After on axostylus axostyle, the position of the screwed hole is corresponding with the position of stopper slot.
By using above-mentioned technical proposal, during using bolt fixes sleeve, the bolt that is tightened inserts the end of bolt
In stopper slot, abutting can fix the position of sleeve.The end insertion stopper slot of fixing bolt, limits turning for mandrel rod
Dynamic, fixed effect is more preferable.
Further, one end of the stretching sleeve of the clamp is provided with chamfering.
By using above-mentioned technical proposal, chamfering, which facilitates, to be arranged on part on the installation end of mandrel rod, is not easy to zero
Part causes to wear.
Further, some oil storage grooves are provided with the chute.
By using above-mentioned technical proposal, lubricant grease can be added before installation in oil storage grooves so that in installation zero
During part, the clamp on sleeve is easier to slide in chute, is easily installed and dismantles.
In summary, the utility model has the advantages that：
1st, the cooperation of sleeve, clamp, neck and mandrel rod carries out installation fixation to part, and jail is fixedly connected with to part
Lean on, easy installation and removal；
2nd, position of the sleeve in mandrel rod can be fixed using the cooperation of screw-threaded counterbore, fixing bolt and stopper slot,
So that fastening parts, being not easy to loosen；
3rd, oil storage grooves can be used for placing lubricant grease so that during installing/dismounting part, clamp is easily sliding in chute
Move.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of core shaft structure in embodiment；
Fig. 2 is the structural representation of mandrel rod in embodiment；
Fig. 3 is the sectional view of embodiment middle sleeve；
Fig. 4 is the structural representation of clamp in embodiment；
Fig. 5 is the sectional view of core shaft structure in embodiment.
In figure：1st, mandrel rod；11st, stopper slot；12nd, chute；121st, oil storage grooves；13rd, installation end；14th, drive end；2nd, cover
Cylinder；21st, screw-threaded counterbore；211st, fixing bolt；22nd, annular slot；23rd, gudgeon hole；3rd, clamp；31st, bayonet socket；32nd, gudgeon；33、
Chamfering；4th, elastic washer；5th, part.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment：
A kind of core shaft structure, reference picture 1, it includes mandrel rod 1, sleeve 2 and clamp 3, and part 5 is arranged on mandrel rod 1
The end of installation end 13 and clamp 3 is inserted into the mounting hole of part 5, can make card by the cooperation of sleeve 2 and mandrel rod 1
Plate 3 expands outwardly, so as to which part 5 to be fixed on to the installation end 13 of mandrel rod 1.
Reference picture 2, is provided with chute 12 at three in mandrel rod 1, and chute 12 arises from the installation end 13 of mandrel rod 1 and along mandrel
The length direction of bar 1 is set.Chute 12 gradually becomes shallower as from the installation end 13 of mandrel rod 1 to the direction of drive end 14.Everywhere chute
Oil storage grooves 121 at two are provided with 12, carry out part 5（As shown in Figure 1）It can be added before installation in oil storage grooves 121
Lubricant grease so that clamp 3（As shown in Figure 1）In the content easy glide of chute 12, it is easily installed and dismantles.Edge is gone back in mandrel rod 1
Its length direction is provided with stopper slot 11, and stopper slot 11 1 is shared at three, wrong between chute 12 to set.
Reference picture 3 and Fig. 4, three pieces and chute 12 are provided with sleeve 2（As shown in Figure 2）The clamp 3 being engaged.Clamp 3
One end be provided with gudgeon 32, and be provided with bayonet socket 31 close to one end of gudgeon 32, one end away from gudgeon 32 is provided with chamfering 33.
The gudgeon hole 23 inserted for gudgeon 32 is provided with the barrel of sleeve 2, and the inwall of sleeve 2 is provided with annular slot 22.Clamp 3 is along set
Cylinder 2 it is axially arranged, gudgeon 32 is inserted into gudgeon hole 23, and the inlay card of bayonet socket 31 is on the barrel of sleeve 2.Annular in sleeve 2
Elastic component is provided with neck 22, elastic component is set at the bayonet socket 31 of three pieces of clamps 3.In the present embodiment elastic component be with to
The elastic washer 4 of the axial shrinkage trend of sleeve 2, elastic washer 4 is applied to clamp 3 one and inserted to the axial direction of sleeve 2 before assembling
Active force so that clamp 3 has rotation trend, the gudgeon 32 in gudgeon hole 23 have the trend that upwarps so as to gudgeon hole 23
Hole wall pushes against so that clamp 3 will not depart from out of sleeve 2.
Reference picture 3 and Fig. 5, circumference array is provided with screw-threaded counterbore 21 in the excircle side wall of sleeve 2, in screw-threaded counterbore 21
Fixing bolt 211 is provided with, the bolt 211 that is tightened can fix the position of sleeve 2.When installing retaining element 5, by part
After 5 are enclosed on clamp 3, sleeve 2 is pulled to the drive end 14 of mandrel rod 1, makes to open outside clamp 3 and fixes part 5.Be tightened spiral shell
Bolt 211, insert it into stopper slot 11, you can sleeve 2 and the relative position of mandrel rod 1 are fixed, complete the installation to part 5.
Operation principle is as follows：
Before part 5 is installed, lubricant grease can be placed in oil storage grooves 121 in chute 12, by sleeve 2 from mandrel rod
1 installation end 13 is enclosed in mandrel rod 1.The clamp 3 on sleeve 2 is respectively aligned to corresponding chute 12, be then enclosed on part 5
The installation end 13 of mandrel rod 1, clamp 3 is set to be inserted into the mounting hole of the centre of part 5.Then, to the side of drive end 14 of mandrel rod 1
To sleeve 2 is pulled, because chute 12 is by being deep to shallow setting so that outside three pieces of clamps 3, so that part 5 be fixed so that
Part 5 will not depart from from mandrel rod 1.Be tightened bolt 211, make fixing bolt 211 end be inserted into corresponding to it is spacing
In groove 11, you can fix the relative position of sleeve 2 and mandrel rod 1, complete the installation of part 5.Lubrication in oil storage grooves 121
Grease causes clamp 3 to be easier to slide in chute 12, is easily installed, dismantles.
Elastic washer 4 in sleeve 2 has the trend to the axial shrinkage of sleeve 2 so that before assembly, clamp 3 have to
The trend of the axial rotation of sleeve 2, so that gudgeon 32 pushes against with gudgeon hole 23, clamp 3 is not easily disconnected from.Fall on the top of clamp 3
Angle 33, facilitate and part 5 is enclosed on clamp 3, to part 5 every damage when reducing installation part 5.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of core shaft structure, including mandrel rod (1) and sleeve (2), described mandrel rod (1) one end is installation end (13), another
Hold as drive end (14), it is characterised in that：Offered on the mandrel rod (1) along the length direction of mandrel rod (1) no less than two
Locate chute (12), the chute (12) arises from the installation end (13) of mandrel rod (1) and gradually become shallower as；Set on the sleeve (2)
Have and be no less than two pieces of clamps (3), described clamp (3) one end is movably arranged in the sleeve (2), and the other end is out of sleeve (2)
Stretch out；The clamp (3) is along the axially arranged of sleeve (2), and the thickness of clamp (3) is equal to the width of the chute (12)；Institute
State the position-limit mechanism being provided with sleeve (2) for making clamp (3) not come off in normality out of sleeve (2), the mandrel
Structure also includes fixed mechanism, and the fixed mechanism is used to the sleeve (2) after installation being fixed on mandrel rod (1).
A kind of 2. core shaft structure according to claim 1, it is characterised in that：The position-limit mechanism includes being arranged on clamp
(3) it is located at the bayonet socket (31) and gudgeon (32) of sleeve (2) interior one end, annular slot (22) is provided with sleeve (2) inwall
With some gudgeon holes (23), the position of the bayonet socket (31) is corresponding with the position of annular slot (22), and the gudgeon (32) is equal
It is inserted into gudgeon hole (23), is provided with the annular slot (22) for driving axial rotation of the clamp (3) to sleeve (2)
Elastic component.
A kind of 3. core shaft structure according to claim 2, it is characterised in that：The elastic component is to be set on the bayonet socket
(31) elastic washer (4) at place, the elastic washer (4) have the trend to sleeve (2) axial shrinkage.
A kind of 4. core shaft structure according to claim 1, it is characterised in that：The fixed mechanism includes running through sleeve (2)
Some screwed holes that wall thickness is set, fixing bolt (211) is equipped with the screwed hole.
A kind of 5. core shaft structure according to claim 4, it is characterised in that：The screwed hole is screw-threaded counterbore (21).
A kind of 6. core shaft structure according to claim 5, it is characterised in that：Along mandrel rod (1) on the mandrel rod (1)
It is axially arranged to have some stopper slots (11), after the sleeve (2) is in mandrel rod (1), the position of the screwed hole and limit
The position of position groove (11) is corresponding.
A kind of 7. core shaft structure according to claim 1, it is characterised in that：The clamp (3) stretches out one end of sleeve (2)
It is provided with chamfering (33).
A kind of 8. core shaft structure according to claim 1, it is characterised in that：Some oil storages are provided with the chute (12)
Groove (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079821.4U CN207188820U (en) | 2017-08-26 | 2017-08-26 | A kind of core shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079821.4U CN207188820U (en) | 2017-08-26 | 2017-08-26 | A kind of core shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207188820U true CN207188820U (en) | 2018-04-06 |
Family
ID=61795566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721079821.4U Active CN207188820U (en) | 2017-08-26 | 2017-08-26 | A kind of core shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207188820U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436868A (en) * | 2018-05-15 | 2018-08-24 | 界首市皖俊轴承有限公司 | A kind of combined type storage device of the bearing convenient for adjusting |
| CN110369751A (en) * | 2019-08-29 | 2019-10-25 | 河南省瑞歌传动机械有限公司 | A kind of tubular workpiece clamping tooling |
| CN115227402A (en) * | 2022-06-30 | 2022-10-25 | 山东大学 | Surgical robot quick-change device and surgical robot |
-
2017
- 2017-08-26 CN CN201721079821.4U patent/CN207188820U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436868A (en) * | 2018-05-15 | 2018-08-24 | 界首市皖俊轴承有限公司 | A kind of combined type storage device of the bearing convenient for adjusting |
| CN110369751A (en) * | 2019-08-29 | 2019-10-25 | 河南省瑞歌传动机械有限公司 | A kind of tubular workpiece clamping tooling |
| CN115227402A (en) * | 2022-06-30 | 2022-10-25 | 山东大学 | Surgical robot quick-change device and surgical robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215300 Jinsha Road, Kunshan Development Zone, Jiangsu, China, No. 58, No. Patentee after: Jiangsu Risheng Bearing Co., Ltd Address before: 215300 Jinsha Road, Kunshan Development Zone, Jiangsu, China, No. 58, No. Patentee before: KUNSHAN RISHENG BEARING Co.,Ltd. |