CN208457006U - Splined shaft - Google Patents
Splined shaft Download PDFInfo
- Publication number
- CN208457006U CN208457006U CN201821133193.8U CN201821133193U CN208457006U CN 208457006 U CN208457006 U CN 208457006U CN 201821133193 U CN201821133193 U CN 201821133193U CN 208457006 U CN208457006 U CN 208457006U
- Authority
- CN
- China
- Prior art keywords
- blind hole
- oil storage
- oil
- splined shaft
- storage blind
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of splined shafts, are related to wheel shaft technical field, to alleviate the technical problem that inside and outside spline lubrication effect existing in the prior art is poor, spline is easy to wear.The splined shaft includes spline segment, optical axis section and blocking component；Spline segment and optical axis section are coaxially connected；Oil storage blind hole is arranged in splined shaft in the axial direction, and the free end of oil storage blind hole from optical axis section extends to spline segment；At least one oil transportation hole is radially arranged in spline segment, and oil transportation hole is connected to oil storage blind hole；Blocking component is set to the inlet of oil storage blind hole.Splined shaft lubricant effect provided by the utility model is stablized, and alleviates the abrasion of spline.
Description
Technical field
The utility model relates to wheel shaft technical fields, more particularly, to a kind of splined shaft.
Background technique
Spline has the benefits such as bearing capacity height, uniform force, good to neutrality, thus, it usually will use in mechanical equipment
It is connected to spline.But be usually lubricated using lubricating grease between existing internal spline and external splines, lubricant effect is poor, and moistens
Become drying after consistent lubricant long-time use, causes spline easy to wear.
The information disclosed in the background technology section is intended only to deepen the understanding to the utility model general background technology,
And it is not construed as recognizing or implying in any form that the information constitutes the prior art known in those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of splined shafts, to alleviate inside and outside spline lubrication existing in the prior art
The technical problem that effect is poor, spline is easy to wear.
To solve the above problems, the utility model the following technical schemes are provided:
A kind of splined shaft, including spline segment, optical axis section and blocking component；
The spline segment and the optical axis section are coaxially connected；
Oil storage blind hole is arranged in the splined shaft in the axial direction, and the oil storage blind hole extends from the free end of the optical axis section
To the spline segment；
At least one oil transportation hole is radially arranged in the spline segment, and the oil transportation hole and the oil storage blind hole connect
It is logical；
The blocking component is set to the inlet of the oil storage blind hole.
Further,
Multiple oil transportation holes are uniformly distributed along the circumferential direction of the spline segment.
Further,
It further include annular groove, the annular groove is arranged along the circumferential direction of the spline segment, and is connected to the oil transportation hole.
Further,
The blocking component includes sealing element, blanking cover and cord；
The sealing element is placed in the oil storage blind hole, and can slide along the axis of the oil storage blind hole；
The blanking cover is covered on the entrance of the oil storage blind hole, and is connect with the sealing element by the cord.
Further,
Venthole is provided on the blanking cover, the oil storage blind hole is in communication with the outside by the venthole.
Further,
The blanking cover is provided with handle away from the side of the oil storage blind hole.
Further,
The sealing element includes cylinder sliding block and oil-scraping ring；
Oil-scraping ring described in setting multiple tracks on the outside of the cylinder sliding block, and the lateral surface of the oil-scraping ring and the oil storage blind hole
Inner wall abut.
Further,
The cylinder sliding block is hollow structure.
Further,
The length of the cord is not less than the depth of the oil storage blind hole.
Further,
The end face of the annular groove is up-side down triangle.
In conjunction with above technical scheme, the utility model bring beneficial effect is analyzed as follows:
The utility model provides a kind of splined shaft, which includes spline segment, optical axis section and blocking component；Spline segment
It is coaxially connected with optical axis section；Oil storage blind hole is arranged in splined shaft in the axial direction, and the free end of oil storage blind hole from optical axis section extends to
Spline segment；At least one oil transportation hole is radially arranged in spline segment, and oil transportation hole is connected to oil storage blind hole；Blocking component setting
In the inlet of oil storage blind hole.
Be stored with lubricating oil in oil storage blind hole, be installed on optical axis section free end blocking component can prevent lubricating oil from
The entrance of oil storage blind hole flows out.When the splined shaft high speed rotation, the lubricating oil in oil storage blind hole is because centrifugal action is along oil transportation hole
Outflow.In splined shaft rotation, flowed out from oil transportation hole lubricating oil can internally external splines continuous lubrication, lubricant effect be steady
It is fixed, alleviate the abrasion of spline.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Structure specifically noted by book, claims and attached drawing is achieved and obtained.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of splined shaft provided by the utility model；
Fig. 2 is the cross-sectional view in the face A-A along Fig. 1；
Fig. 3 is the enlarged drawing of B area in Fig. 2.
Icon: 1- spline segment；2- optical axis section；3- blocking component；31- sealing element；311- cylinder sliding block；312- oil-scraping ring；
32- blanking cover；321- venthole；322- handle；33- cord；4- oil storage blind hole；5- oil transportation hole；6- annular groove.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Following embodiment is described in detail with reference to the accompanying drawing:
A kind of splined shaft is present embodiments provided, please also refer to Fig. 1 to Fig. 3 in Figure of description.Fig. 1 is that this is practical
The structural schematic diagram of the splined shaft of novel offer；Fig. 2 is the cross-sectional view in the face A-A along Fig. 1；Fig. 3 is the amplification of B area in Fig. 2
Figure.
As depicted in figs. 1 and 2, which includes spline segment 1, optical axis section 2 and blocking component 3；Spline segment 1 and optical axis section
2 is coaxially connected；Oil storage blind hole 4 is arranged in splined shaft in the axial direction, and the free end of oil storage blind hole 4 from optical axis section 2 extends to spline
Section 1；At least one oil transportation hole 5 is radially arranged in spline segment 1, and oil transportation hole 5 is connected to oil storage blind hole 4；Blocking component 3 is set
It is placed in the inlet of oil storage blind hole 4.
The present embodiment is installed on the closure of 2 free end of optical axis section when it is implemented, be stored with lubricating oil in oil storage blind hole 4
Component 3 can prevent lubricating oil from oil storage blind hole 4 entrance outflow, can also place extraneous dust or sundries to enter oil storage blind
Hole 4.When the splined shaft high speed rotation, the lubricating oil in oil storage blind hole 4 is because centrifugal action is along the outflow of oil transportation hole 5.In the spline
When axis rotates, the lubricating oil flowed out from oil transportation hole 5 can internally external splines continuous lubrication, lubricant effect be stablized, and alleviate spline
Abrasion.
In the optinal plan of the present embodiment, more preferably,
As shown in Fig. 2, multiple oil transportation holes 5 are uniformly distributed along the circumferential direction of spline segment 1.
In specific implementation process, circumferentially uniformly distributed multiple oil transportation holes 5 can guarantee that internal spline and external splines uniformly lubricate, and keep away
Exempt from exist lubrication less than position.
It should be noted that allowing to be arranged the multiple of non-uniform Distribution when the radial force imbalance that the splined shaft is subject to
Oil transportation hole 5.Intensive oil transportation hole 5 is set bearing the biggish position of radial force, the lesser position setting of radial force is dilute bearing
Thin oil transportation hole 5.Not only guarantee that the position for bearing larger radial force can obtain sufficient lubrication, but also can guarantee and bear smaller radial to power
Position do not waste lubricating oil.
Meanwhile the aperture in oil transportation hole 5 can also be arranged according to the radial force of the splined shaft hand.It is biggish to bear radial force
The aperture in the oil transportation hole 5 of position is larger, and the aperture for bearing the oil transportation hole 5 of the lesser position of radial force is smaller.Splined shaft high speed
When rotation, the lubrication Chuck Steak thrown away by the biggish oil transportation hole 5 in aperture, the lubrication thrown away by the lesser oil transportation hole 5 in aperture
Oil is less.Not only guarantee that the position for bearing larger radial force can obtain sufficient lubrication, but also can guarantee and bear position of the smaller radial to power
It sets and does not waste lubricating oil.
In the optinal plan of the present embodiment, more preferably,
As depicted in figs. 1 and 2, which further includes annular groove 6, and annular groove 6 is arranged along the circumferential direction of spline segment 1, and and oil transportation
Hole 5 is connected to.
When it is implemented, can be flowed from the lubricating oil that oil transportation hole 5 is flowed out along annular groove 6, lubricating oil is enable quickly to flow
It to the position in no oil transportation hole 5, lubricate the position for being not provided with oil transportation hole 5 can also adequately.
As depicted in figs. 1 and 2, the setting of spline segment 1 two annular grooves 6 of interval setting of the splined shaft.Each annular groove 6 passes through
Multiple oil transportation holes 5 are connected to oil storage blind hole 4.Two annular grooves 6 make the lubrication oil distribution on 1 length direction of spline segment more equal
It is even.
Certainly, when 1 length of the spline segment of splined shaft is larger, multiple numbers such as three, four can also be set in spline segment 1
The annular groove 6 of amount guarantees the lubrication between interior external splines, mitigates mill so that the lubricating oil of 1 length direction of spline segment is evenly distributed
Damage.
The depth of annular groove 6 is greater than the height of spline tooth, guarantees also obtain sufficient lubrication at the tooth root of spline, mitigates tooth root
Abrasion, guarantee the intensity of tooth root.
In the optinal plan of the present embodiment, more preferably,
The end face of annular groove 6 is up-side down triangle.
The annular groove 6 of up-side down triangle facilitates processing and manufacturing, can be completed using lathe grinding, manufacturing cost is low.
It should be noted that the end face of annular groove 6 can also be other shapes, for example, rectangle, inverted trapezoidal, semicircle etc..
In the optinal plan of the present embodiment, more preferably,
As shown in Fig. 2, blocking component 3 includes sealing element 31, blanking cover 32 and cord 33；Sealing element 31 is placed in oil storage blind hole
4, and can be slided along the axis of oil storage blind hole 4；Blanking cover 32 is covered on the entrance of oil storage blind hole 4, and passes through cord with sealing element 31
33 connections.
When it is implemented, sealing element 31 is placed in oil storage blind hole 4, as shown in Fig. 2, 31 side of sealing element is lubricating oil, separately
Side is air.When the splined shaft high speed rotation, the lubricating oil in oil storage blind hole 4 is thrown out of through oil transportation hole 5, sealing element 31
Lubricating oil side pressure reduces, and 31 two sides of sealing element form pressure difference, and sealing element 31 is to one Slideslip of lubricating oil.
Blanking cover 32 and the end of optical axis section 2 are detachably connected.For example, the end of blanking cover 32 and optical axis section 2 is connected by screw thread
It connects；For another example the end of blanking cover 32 and optical axis section 2 is clamped.The material of the blanking cover 32 is preferably, with spline segment 1 and optical axis section 2
Material is identical, can balance the Mass Distribution of the splined shaft along its length.Certainly, which can also be other materials,
For example, plastics, ceramics etc..
Blanking cover 32 can prevent extraneous dust, sundries etc. from entering oil storage blind hole 4；Meanwhile the blanking cover 32 can also prevent silk
Rope 33 is fallen from oil storage blind hole 4 in the splined shaft high speed rotation, and then cord 33 is avoided to be wound into other components and shadow
Ring the normal operation of mechanical equipment.
When the lubricating oil in oil storage blind hole 4 is used up, sealing element 31 is now in the depths of oil storage blind hole 4, and operator will
After blanking cover 32 is disassembled from optical axis section 2, pull cord 33 that can pull out sealing element 31 from oil storage blind hole 4.
In the optinal plan of the present embodiment, more preferably,
As shown in figure 3, being provided with venthole 321 on blanking cover 32, oil storage blind hole 4 is in communication with the outside by venthole 321.
The venthole 321 can be such that air and outside air in oil storage blind hole 4 flows, and keep 31 air side of sealing element
Pressure.
Certainly, extraneous dust, sundries etc. enter oil storage blind hole 4 in order to prevent, and filtering knot can be arranged in venthole 321
Structure for example, airstrainer or filter cotton, dust in outside air is filtered out, while being also prevented from sundries and entering oil storage blind hole
4。
In the optinal plan of the present embodiment, more preferably,
As shown in figure 3, blanking cover 32 is provided with handle 322 away from the side of oil storage blind hole 4.
In specific implementation process, the handle 322 being arranged on blanking cover 32 facilitates operator by blanking cover 32 from the end of optical axis section 2
It disassembles.For example, blanking cover 32 is realized by the end of screw thread and optical axis section 2 when being detachably connected, the handle in oil storage blind hole 4
322 facilitate operator to rotate blanking cover 32, realize the disassembly and installation of blanking cover 32.
It should be noted that the present embodiment is not intended to limit the shape of 32 upper handle 322 of blanking cover, either linear type,
It can be cross, can also be other shapes.
In the optinal plan of the present embodiment, more preferably,
As shown in Fig. 2, sealing element 31 includes cylinder sliding block 311 and oil-scraping ring 312；Multiple tracks is set on the outside of cylinder sliding block 311
Oil-scraping ring 312, and the lateral surface of oil-scraping ring 312 is abutted with the inner wall of oil storage blind hole 4.
When sealing element 31 is moved along the axis of oil storage blind hole 4, oil-scraping ring 312 can strike off the profit on 4 inner wall of oil storage blind hole
Lubricating oil, the spaced oil-scraping ring 312 of multiple tracks can make the lubricating oil on 4 inner wall of oil storage blind hole be stripped off cleaner.
The length of cylinder sliding block 311 is unsuitable too short, and the too short cylinder sliding block 311 that will lead to of length does not have to the shifting of sealing element 31
Dynamic guiding role.The length of cylinder sliding block 311 is also unsuitable too long, length is too long will lead to cylinder sliding block 311 occupy it is more
The space of oil storage blind hole 4 reduces the volume of the lubricating oil stored in oil storage blind hole 4.For example, the length of cylinder sliding block 311 can
3 times for thinking 311 diameter of cylinder sliding block.
Oil-scraping ring 312 and cylinder sliding block 311 can be detachable connection, and oil-scraping ring 312 and cylinder sliding block 311 can also be with
It is integrally connected.
In the optinal plan of the present embodiment, more preferably,
As shown in Fig. 2, cylinder sliding block 311 is hollow structure.
When being slided in oil storage blind hole 4 due to sealing element 31, the load distribution of the splined shaft can change, and then influence
The stability of splined shaft rotation.The middle control structure of cylinder sliding block 311 can reduce the quality of cylinder sliding block 311, reduce sealing element
31 influence in oil storage blind hole 4 when sliding to the splined shaft.Meanwhile cylinder sliding block 311 uses light material, such as aluminium to close
Gold, carbon fiber etc. further decrease influence when sealing element 31 slides in oil storage blind hole 4 to the splined shaft.
Sealing element 31 can also use other structures form, be exemplified below in addition to structure type described above.
Sealing element 31 is set as cylinder sliding block 311, and the diameter of the cylinder sliding block 311 is equal with the internal diameter of oil storage blind hole 4.
In the optinal plan of the present embodiment, more preferably,
The length of cord 33 is not less than the depth of oil storage blind hole 4.
The length of cord 33 can guarantee that sealing element 31 is moved to the bottom of oil storage blind hole 4 not less than the depth of oil storage blind hole 4
Portion ensure that lubricating oil uses up the pressure of 31 lubricating oil side of front seal.
The cord 33 can be the rope-like constructeds component such as wirerope, nylon rope, cordage.As long as can satisfy pulling sealing
The intensity requirement of part 31 and flexible cord 33 is all allowed.
The both ends of the cord 33 can be bonding, welding etc. with the connection type of sealing element 31 and blanking cover 32.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of splined shaft, which is characterized in that including spline segment (1), optical axis section (2) and blocking component (3)；
The spline segment (1) and the optical axis section (2) are coaxially connected；
The splined shaft is arranged oil storage blind hole (4) in the axial direction, freedom of the oil storage blind hole (4) from the optical axis section (2)
End extends to the spline segment (1)；
At least one oil transportation hole (5) is radially arranged in the spline segment (1), and the oil transportation hole (5) and the oil storage are blind
Hole (4) connection；
The blocking component (3) is set to the inlet of the oil storage blind hole (4).
2. splined shaft according to claim 1, which is characterized in that
Multiple oil transportation holes (5) are uniformly distributed along the circumferential direction of the spline segment (1).
3. splined shaft according to claim 2, which is characterized in that
It further include annular groove (6), the annular groove (6) is arranged along the circumferential direction of the spline segment (1), and is connected to the oil transportation hole (5).
4. splined shaft according to claim 1, which is characterized in that
The blocking component (3) includes sealing element (31), blanking cover (32) and cord (33)；
The sealing element (31) is placed in the oil storage blind hole (4), and can slide along the axis of the oil storage blind hole (4)；
The blanking cover (32) is covered on the entrance of the oil storage blind hole (4), and passes through the cord with the sealing element (31)
(33) it connects.
5. splined shaft according to claim 4, which is characterized in that
It is provided with venthole (321) on the blanking cover (32), the venthole (321) connects the oil storage blind hole (4) and the external world
It is logical.
6. splined shaft according to claim 5, which is characterized in that
The blanking cover (32) is provided with handle (322) away from the side of the oil storage blind hole (4).
7. splined shaft according to claim 4, which is characterized in that
The sealing element (31) includes cylinder sliding block (311) and oil-scraping ring (312)；
Oil-scraping ring (312) described in setting multiple tracks on the outside of the cylinder sliding block (311), and the lateral surface of the oil-scraping ring (312) with
The inner wall of the oil storage blind hole (4) abuts.
8. splined shaft according to claim 7, which is characterized in that
The cylinder sliding block (311) is hollow structure.
9. splined shaft according to claim 4, which is characterized in that
The length of the cord (33) is not less than the depth of the oil storage blind hole (4).
10. splined shaft according to claim 3, which is characterized in that
The end face of the annular groove (6) is up-side down triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821133193.8U CN208457006U (en) | 2018-07-17 | 2018-07-17 | Splined shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821133193.8U CN208457006U (en) | 2018-07-17 | 2018-07-17 | Splined shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208457006U true CN208457006U (en) | 2019-02-01 |
Family
ID=65180423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821133193.8U Expired - Fee Related CN208457006U (en) | 2018-07-17 | 2018-07-17 | Splined shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208457006U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666262A (en) * | 2021-10-25 | 2021-11-19 | 誉海海洋工程装备(江苏)有限公司 | Workpiece crane for shipbuilding |
| CN115045900A (en) * | 2022-06-16 | 2022-09-13 | 山东润金重工科技有限公司 | Double-shaft motor rotating shaft forging |
-
2018
- 2018-07-17 CN CN201821133193.8U patent/CN208457006U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666262A (en) * | 2021-10-25 | 2021-11-19 | 誉海海洋工程装备(江苏)有限公司 | Workpiece crane for shipbuilding |
| CN115045900A (en) * | 2022-06-16 | 2022-09-13 | 山东润金重工科技有限公司 | Double-shaft motor rotating shaft forging |
| CN115045900B (en) * | 2022-06-16 | 2023-05-12 | 山东润金重工科技有限公司 | Biax motor shaft forging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 Termination date: 20210717 |