CN106438734A - Straight track spline - Google Patents
Straight track spline Download PDFInfo
- Publication number
- CN106438734A CN106438734A CN201611165815.0A CN201611165815A CN106438734A CN 106438734 A CN106438734 A CN 106438734A CN 201611165815 A CN201611165815 A CN 201611165815A CN 106438734 A CN106438734 A CN 106438734A
- Authority
- CN
- China
- Prior art keywords
- key
- axle
- lid
- straight rail
- keyway
- 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
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
- F16D3/065—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement by means of rolling elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
- B66D1/39—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of axially-movable drums or barrels
Abstract
The invention discloses a straight track spline, comprising a rotating part and a sliding part. The sliding part is sleeved on the rotating part, and can slide along the axial direction of the rotating part relatively to the rotating part, and the rotating part and the sliding part as a whole can rotate around the axial direction center of the rotating part. The straight track spline is mainly used in a helicopter rescue electric winch, through the connection between the sliding part and a drum wheel inside the winch, once the rotating part starts rotating, the sliding part and the drum wheel thereon follow the rotating part to rotate, and simultaneously, the sliding part can drive the drum wheel to move repeatedly along the axial direction of the rotating part, thereby realizing that the drum wheel of the helicopter rescue electric winch moves in the axial direction while finishing rotational motion, and guaranteeing that a wire rope is tightly and sequentially interwoven on the drum wheel.
Description
Technical field
The present invention relates to a kind of straight rail spline.
Background technology
Helicopter rescue electric winch is by Motor drive straight rail spline, drives drum rotation by straight rail spline, from
And so that cable wire is wrapped on drum.In cable wire winding process, in order to ensure that cable wire is uniformly wound around in order and other use and need
Ask, need drum while rotating, need to move in the horizontal direction, thus realize helicopter rescue electric winch drum completing
Move axially while rotary motion, and need to ensure in the larger stability hung and rotate in the case of liter load and slide.
Content of the invention
It is an object of the invention to：For above-mentioned problem, one kind is provided to be capable of helicopter rescue electric mincing
Car drum completes the straight rail spline moving axially while rotary motion.
The technical scheme is that and be achieved in that：A kind of straight rail spline it is characterised in that：Including rotatable parts and cunning
Dynamic component, described slide unit is socketed on rotatable parts, and described slide unit can be axially sliding along it with respect to rotatable parts
Dynamic, and described rotatable parts and slide unit integrally can be around the axial centre rotations of rotatable parts.
Straight rail spline of the present invention, its described rotatable parts includes key axle, and described slide unit includes key set and key
Lid, described key lid be connected to key set both ends, on described key axle periphery along its axially arranged have a plurality of keyway, in described key
Cover the key being provided with keyway corresponding matching a plurality of on key axle, described key set and key lid are socketed on key axle, on described key lid
Key and key axle on keyway corresponding matching, be provided with some balls, described key set and key lid between described key set and key axle
Can slide axially along it with respect to key axle, and described key axle, key set and key lid integrally can turn around the axial centre of key axle
Dynamic.
Straight rail spline of the present invention, on its described key axle, a plurality of keyway of setting is uniform centered on the axle center of key axle
It is distributed on same circumference.
Straight rail spline of the present invention, the keyway on its described key axle adopts Gothic groove structure.
Straight rail spline of the present invention, its described key cover endoporus along it axially arranged have a plurality of with key axle on keyway
The groove of corresponding matching, after described key set is socketed on key axle, the keyway corresponding matching on groove and key axle that described key puts
Constitute the passage for assembling some balls, the two ends of described passage are blocked by key lid.
Straight rail spline of the present invention, its on described key covers along its axially arranged have multiple through holes, in described key lid
Inner side end is provided with multiple arcs groove, and key set and the passage that the cooperation of key axle is constituted and key are put corresponding by described arc groove
Through hole connection, the arc groove on the passage that through hole that is, described key puts, key set are constituted with the cooperation of key axle and key lid is altogether
With constituting an annular circular passage being used for some balls reciprocating rolling side by side.
Straight rail spline of the present invention, its described arc groove is arranged on the key corresponding position of key lid, the plurality of arc
Groove is evenly distributed on same circumference centered on the axle center of key lid.
Straight rail spline of the present invention, its multiple annular circular passage is evenly distributed on same centered on the axle center of key axle
On one circumference, the through hole in each annular circular passage and key set coordinate the passage constituting along the radial direction cloth of key axle with key axle
Put.
Straight rail spline of the present invention, its described key axle is connected with Power Drive Unit, and described key set is rescued with helicopter
The drum helping winch connects.
Present invention is mainly used in helicopter rescue electric winch, being connected with the drum within winch by slide unit,
Once rotatable parts start to rotate, slide unit and drum thereon will be with rotating with it, meanwhile, and slide unit can drive drum
Axially move repeatedly along rotatable parts, thus realize helicopter rescue electric winch drum while completing rotary motion axle
To mobile it is ensured that cable wire is closely orderly is wrapped on drum.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is A-A sectional view in Fig. 3.
Fig. 5 is the structural representation of key set in the present invention.
Fig. 6 is the front view of Fig. 5.
Fig. 7 is the side view of Fig. 5,
Fig. 8 is B-B sectional view in Fig. 6.
Fig. 9 is the structural representation of key lid in the present invention.
Figure 10 and Figure 11 is the left and right view of Fig. 9.
Figure 12 is the structural representation of key axle in the present invention.
Figure 13 is the front view of Figure 12.
Figure 14 is the side view of Figure 12.
In figure labelling：1 is key axle, and 2 is key set, and 3 is key lid, and 4 is keyway, and 5 is key, and 6 is ball, and 7 is groove, and 8 is logical
Hole, 9 is arc groove.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
As represented in figures 1 through 14, a kind of straight rail spline, including rotatable parts and slide unit, described slide unit is socketed in and turns
On dynamic component, described slide unit can slide axially along it with respect to rotatable parts, and described rotatable parts and slide unit
Entirety can rotate around the axial centre of rotatable parts.
Wherein, described rotatable parts include key axle 1, and described slide unit includes key set 2 and key lid 3, described key axle 1 with dynamic
Force driving device connects, and the drum that described key set 2 rescues winch with helicopter is connected, and described key lid 3 is connected to the two ends of key set 2
Portion, on described key axle 1 periphery along its axially arranged have a plurality of keyway 4, in the present embodiment, on described key axle 1 periphery setting
Have six keyways, on described key axle 1 setting a plurality of keyway 4 be evenly distributed on centered on the axle center of key axle 1 same circumference it
On, the key 5 with keyway 4 corresponding matching a plurality of on key axle 1 is provided with described key lid 3, described key set 2 and key lid 3 are socketed in
On key axle 1, keyway 4 corresponding matching on key on described key lid 35 and key axle 1, it is provided between described key set 2 and key axle 1
Some balls 6, described key set 2 and key lid 3 can slide axially along it with respect to key axle 1, and described key axle 1, key set 2 and key
Lid 3 is overall can be rotated around the axial centre of key axle 1.
Circular-arc-shaped design routinely is pressed, its radius is slightly larger than steel ball radius during keyway initial design on described key axle,
Therefore during key set is with respect to the axial movement of key axle, steel ball is contacted for any with the keyway of circular arc, steel ball runs very uneven
Surely, mutually it is pushed against between steel ball, causes frictional force to be increased sharply, especially under the conditions of carrying, due to producing elastic deformation, lead to key set
Axial resistance and key axle between is bigger.In order to improve transmission accuracy, increase bearing capacity it is ensured that the stationarity of steel ball motion and
Smoothness, the keyway 4 of key axle 1 is designed as Gothic, and using Gothic trench profile, axial gap can adjust to obtain very little, also can
Easily being driven, if adding suitable prefastening load, eliminating axial gap, straight rail spline can be made to have more preferably rigid, hold
Reduce the elastic deformation of steel ball and key set, key between centers during load, reach higher precision.
As shown in Figure 5-10, cover in described key that 2 endoporus are axially arranged along it that a plurality of and on key axle 1 keyway 4 is corresponding to join
The groove 7 closing, keyway 4 corresponding matching on groove 7 and key axle 1 after described key set 2 is socketed on key axle 1, on described key set 2
Constitute the passage for assembling some balls 6, the two ends of described passage are blocked by key lid 3, described key set 2 axially sets along it
It is equipped with multiple through holes 8, described key lid 3 inner side end is provided with multiple arcs groove 9, described arc groove 9 is arranged on key lid 3
Key 5 corresponding position, the plurality of arc groove 9 is evenly distributed on same circumference centered on the axle center of key lid 3, described arc
Key set 2 and key axle 1 coordinate the passage of composition to cover corresponding through hole 8 on 2 with key to connect by connected in star 9, if key puts after assembling
Groove cannot be docked completely with the groove on key lid, then can not set up a smoothly roller track for ball, and it can lead to roll
When pearl is rolled to key set with key lid junction, it is not directed into the groove of key lid, but the ditch of shock or the key set that scratched
Groove end face, thus occur the phenomenon that key set is with respect to the mobile clamping stagnation of key axle.Therefore, the groove two ends of described key set are designed as down
Corner structure, the arc groove of chamfering and key lid that described key puts groove forms complete roller track, makes ball in groove
Energy rolls steadily and smoothly, does not have some retardation to occur, and that is, the through hole 8 on described key set 2, key are covered 2 and constituted with key axle 1 cooperation
Passage and key lid 3 on arc groove 9 collectively form one for some balls 6 side by side reciprocating rolling annular circular lead to
Road.
Wherein, multiple annular circular passages are evenly distributed on same circumference centered on the axle center of key axle 1, each ring
Through hole 8 in shape circular channel and key set 2 coordinate the passage constituting along the radial arrangement of key axle 1 with key axle 1.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of straight rail spline it is characterised in that：Including rotatable parts and slide unit, described slide unit is socketed in rotation section
On part, described slide unit can slide axially along it with respect to rotatable parts, and described rotatable parts and slide unit entirety
Can rotate around the axial centre of rotatable parts.
2. straight rail spline according to claim 1 it is characterised in that：Described rotatable parts include key axle（1）, described slip
Part includes key set（2）With key lid（3）, described key lid（3）It is connected to key set（2）Both ends, in described key axle（1）Upper periphery
Axially arranged there is a plurality of keyway along it（4）, in described key lid（3）On be provided with and key axle（1）Upper a plurality of keyway（4）Corresponding matching
Key（5）, described key set（2）With key lid（3）It is socketed in key axle（1）On, described key lid（3）On key（5）With key axle（1）On
Keyway（4）Corresponding matching, in described key set（2）With key axle（1）Between be provided with some balls（6）, described key set（2）With key lid
（3）Can be with respect to key axle（1）Slide axially along it, and described key axle（1）, key set（2）And key lid（3）Entirety can be around key
Axle（1）Axial centre rotate.
3. straight rail spline according to claim 2 it is characterised in that：Described key axle（1）The a plurality of keyway of upper setting（4）With
Key axle（1）Axle center centered on be evenly distributed on same circumference.
4. straight rail spline according to claim 3 it is characterised in that：Described key axle（1）On keyway（4）Using Gothic
Groove structure.
5. straight rail spline according to claim 4 it is characterised in that：In described key set（2）Endoporus axially arranged has along it
A plurality of with key axle（1）On keyway（4）The groove of corresponding matching（7）, described key set（2）It is socketed in key axle（1）After upper, described key
Set（2）On groove（7）With key axle（1）On keyway（4）Corresponding matching is constituted for assembling some balls（6）Passage, institute
The two ends stating passage are by key lid（3）Closure.
6. straight rail spline according to claim 5 it is characterised in that：In described key set（2）On along its axially arranged have many
Individual through hole（8）, in described key lid（3）Inner side end is provided with multiple arcs groove（9）, described arc groove（9）By key set（2）
With key axle（1）The passage that cooperation is constituted and key set（2）Upper corresponding through hole（8）Connection, i.e. described key set（2）On through hole（8）、
Key set（2）With key axle（1）Passage and key lid that cooperation is constituted（3）On arc groove（9）Collectively form one for some
Ball（6）The annular circular passage of reciprocating rolling side by side.
7. straight rail spline according to claim 6 it is characterised in that：Described arc groove（9）It is arranged on key lid（3）Key
（5）Corresponding position, the plurality of arc groove（9）With key lid（3）Axle center centered on be evenly distributed on same circumference.
8. straight rail spline according to claim 7 it is characterised in that：Multiple annular circular passages are with key axle（1）Axle center
Centered on be evenly distributed on same circumference, the through hole in each annular circular passage（8）And key set（2）With key axle（1）
The passage that cooperation is constituted is along key axle（1）Radial arrangement.
9. straight rail spline as claimed in any of claims 1 to 8 it is characterised in that：Described key axle（1）Drive with power
Dynamic device connects, described key set（2）The drum rescuing winch with helicopter is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165815.0A CN106438734A (en) | 2016-12-16 | 2016-12-16 | Straight track spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165815.0A CN106438734A (en) | 2016-12-16 | 2016-12-16 | Straight track spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438734A true CN106438734A (en) | 2017-02-22 |
Family
ID=58217251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611165815.0A Pending CN106438734A (en) | 2016-12-16 | 2016-12-16 | Straight track spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438734A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824870A (en) * | 2020-06-01 | 2020-10-27 | 国网山东省电力公司平原县供电公司 | Power cable storage device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194957U (en) * | 2011-08-16 | 2012-04-18 | 天津泰瑞传动技术发展有限公司 | Ball spline transmission assembly |
| CN104755810A (en) * | 2012-10-12 | 2015-07-01 | Ntn株式会社 | Electric linear actuator |
| CN106090007A (en) * | 2016-08-23 | 2016-11-09 | 苏州日川精密仪器有限公司 | Ball spline pair |
-
2016
- 2016-12-16 CN CN201611165815.0A patent/CN106438734A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194957U (en) * | 2011-08-16 | 2012-04-18 | 天津泰瑞传动技术发展有限公司 | Ball spline transmission assembly |
| CN104755810A (en) * | 2012-10-12 | 2015-07-01 | Ntn株式会社 | Electric linear actuator |
| CN106090007A (en) * | 2016-08-23 | 2016-11-09 | 苏州日川精密仪器有限公司 | Ball spline pair |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824870A (en) * | 2020-06-01 | 2020-10-27 | 国网山东省电力公司平原县供电公司 | Power cable storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |