CN104474722B - Motor of model airplane screw mounting seat positioner - Google Patents
Motor of model airplane screw mounting seat positioner Download PDFInfo
- Publication number
- CN104474722B CN104474722B CN201410631233.1A CN201410631233A CN104474722B CN 104474722 B CN104474722 B CN 104474722B CN 201410631233 A CN201410631233 A CN 201410631233A CN 104474722 B CN104474722 B CN 104474722B
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- CN
- China
- Prior art keywords
- mounting seat
- crankcase
- screw mounting
- bent axle
- end bearing
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention belongs to the technical field of engine device, and in particular to a kind of motor of model airplane screw mounting seat positioner.The device includes crankcase and bent axle, and bent axle is connected with crankcase by end bearing before the crankcase that is arranged on inside crankcase and crankcase rear end bearing, and crankcase front portion is provided with screw mounting seat, is provided with cone-shaped inner hole inside the screw mounting seat；Bent axle is provided with the diminished shaft matched with cone-shaped inner hole；Bent axle passes through screw mounting seat, and extends distance to a declared goal；Floor clip and multigroup only head screw are sequentially provided with before screw mounting seat rear end face and crankcase between end bearing；Floor clip be stuck on bent axle and with crankcase before end bearing fit；Screw mounting seat side wall is provided with and the screwed hole that only head screw matches.The apparatus structure is simple, is easily installed maintenance, eliminates the phenomenon that engine crankshaft produces play in crankcase, improves bearing service life, lifts engine total quality.
Description
Technical field
The invention belongs to the technical field of engine device, and in particular to a kind of motor of model airplane screw mounting seat
Positioner.
Background technology
Explosive motor is that the chemical energy of fuel combustion is transformed into heat energy, then again heat energy is become the machine of mechanical energy
Device.Screw is often mounted in engine front, promotes the power of aircraft motion to be also referred to as pulling force or thrust so it produces.Engine
During work, the power for producing forward or backward during propeller rotational, can be driven.That is engine crankshaft can be produced in crankcase
The phenomenon of play after before death.The power of axial float is acted against on two deep groove ball bearings of crankcase, in the course of time, if bearing
By also needing while radial load persistently by if axial load, it will reduce the service life of deep groove ball bearing.For depth
Ditch ball bearing, design original intention are exactly, mainly for bearing radial load, can only to bear a certain amount of axial load.Therefore exist for a long time
The deep groove ball bearing of axial force is born in crankcase, has exceeded field of load, it will the normal service life for reducing bearing is final
Cause to damage.Reason is can not find when engine bearing is damaged again particularly, it will increase the maintenance cost of user, Er Qieyou
A little users also have no ability to oneself and change bearing, will also return manufacturer by dealer and be keeped in repair, cycle length, expense
Height, increased cost, therefore to solve this technical barrier be instant thing.
The content of the invention
The present invention is directed to the deficiencies in the prior art, fills there is provided a kind of motor of model airplane screw mounting seat positioning
Put, which efficiently solves the problems, such as that engine crankshaft produces play in crankcase.
The technical scheme is that what is be achieved in that：A kind of motor of model airplane screw mounting seat positioner bag
Include crankcase and bent axle, described bent axle is by end bearing and crankcase rear end bearing before the crankcase that is arranged on inside crankcase
It is connected with crankcase, it is characterised in that：The crankcase front portion is provided with screw mounting seat, is provided with inside the screw mounting seat
Cone-shaped inner hole；Described bent axle is provided with the diminished shaft matched with the cone-shaped inner hole；The bent axle is installed through screw
Seat, and extend distance to a declared goal；Only it is sequentially provided between end bearing before the screw mounting seat rear end face and the crankcase
Move back packing ring and multigroup only head screw；The floor clip be stuck on bent axle and with crankcase before end bearing fit；The spiral
Oar mounting seat side wall is provided with and the screwed hole that only head screw matches.
Preferably, described only at least two groups of head screw 3, uniform along 2 axle center of screw mounting seat.
Preferably, the cone-shaped inner hole taper of the screw mounting seat is 10 °～15 °
Preferably, described screw mounting seat outline section is round or regular polygon.
Preferably, before described crankcase, end bearing and crankcase rear end bearing are single-groove grooved ball bearing.
The present invention solves defect present in background technology, has the advantages that：
The motor of model airplane screw mounting seat positioner that the present invention is provided, solves engine crankshaft in crankcase
The interior phenomenon for producing play, screw mounting seat is allowed to couple overall for one with crankcase after mounting, is thoroughly eliminated axially
Gap is improving bearing service life.So as to improve the service life of engine, engine total quality is lifted.In addition the device
Also have that design structure is simple, be easily installed maintenance, zero fault rate is low, low cost of manufacture, maintaining low cost the features such as.
Description of the drawings
Structural representations of the Fig. 1 for motor of model airplane screw mounting seat positioner；
In figure：1- oar axle screws, 2- screw installation axles, 3- stop head screw, 4- floor clips, 5- crankcases front end axle
Hold, end bearing before 6- crankcases, 7- bent axles, 8- crankcases.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
A kind of motor of model airplane screw mounting seat positioner as shown in Figure 1, including crankcase 8 and bent axle 7,
Bent axle 7 is connected with crankcase 8 by end bearing 5 before the crankcase that is arranged on inside crankcase 8 and crankcase rear end bearing 6, bent
8 front portion of axle box is provided with screw mounting seat 2, is provided with cone-shaped inner hole inside the screw mounting seat 2；Bent axle 7 is provided with and taper
The diminished shaft that endoporus matches；Bent axle 7 passes through screw mounting seat 2, and extends distance to a declared goal；The distance should meet bent axle 7
Front end is installed by the needs of screw；Floor clip 4 be stuck on bent axle 7 and with crankcase before the front end face of end bearing 5 fit；Spiral shell
2 side wall of rotation oar mounting seat is provided with the two groups of screwed holes matched with only head screw 3；2 rear end face of screw mounting seat with it is described
Two groups of only head screws 3 for being distributed on 2 axle center of screw mounting seat are additionally provided with before crankcase between end bearing 5.Screw mounting seat 2
Cone-shaped inner hole taper be 10 °～15 °, 2 outline section of screw mounting seat is circular or regular polygon.Crankcase front end axle
Hold 5 and crankcase rear end bearing 6 be single-groove grooved ball bearing.
The present invention principle be：Screw mounting seat 2 is coordinated with the axis of cone of the front end of bent axle 7 by taper hole and couples assembling
Afterwards, it is allowed to couple overall for one with crankcase 8, solves the phenomenon that engine crankshaft produces play in crankcase；Again by only
Withstand on head screw 3 and floor clip 4 and be close to end bearing 5 before crankcase, thoroughly eliminating crankcase 8 has axial gap with bent axle 7,
Avoid producing axial load, improve bearing service life.So as to improve the service life of engine, engine entirety matter is lifted
Amount.
The present invention the course of work be：Screw is mounted in front of bent axle 7 by oar axle screw 1, when engine works, spiral
Oar can produce the phenomenon of before and after's play in crankcase with dynamic crankshaft 7 when rotating, both apply axial load in crankcase 8
On two deep groove ball bearings.By being provided with the screw mounting seat 2 that endoporus is bellmouth in 8 front portion of crankcase, the screw is pacified
The taper hole of dress seat 2 is coordinated with the diminished shaft of 7 front end of bent axle and is coupled, and just prevents end face from breasting, i.e. 2 rear end face of screw mounting seat
Can not possibly be with 5 end contact of end bearing before crankcase, can thus form crankcase 8 has axial gap with bent axle 7.By in spiral shell
Floor clip 4 is installed between end bearing 5 before 2 rear end face of rotation oar mounting seat and crankcase, screw mounting seat 2 is installed with bent axle 7
After finishing, then multiple screwed holes that screw mounting seat 2 is provided with are screwed in only head screw 3, withstand on floor clip 4, retaining
End bearing 5 before crankcase will be compressed on packing ring 4, so as to realize that screw mounting seat 2 is coupled with crankcase 8 after mounting for one
It is overall, thoroughly eliminate axial gap, it is to avoid produce axial load, improve bearing service life, so as to improve the use of engine
In the life-span, lift engine total quality.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (5)
1. a kind of motor of model airplane screw mounting seat positioner, including crankcase (8) and bent axle (7), described song
End bearing (5) and crankcase rear end bearing (6) and crankcase (8) before axle (7) crankcase internal by being arranged on crankcase (8)
Connection, crankcase (8) front portion are provided with screw mounting seat (2), and the bent axle (7) is through screw mounting seat (2), and prolongs
Stretch out distance to a declared goal；It is characterized in that：Cone-shaped inner hole is provided with inside the screw mounting seat (2)；Described bent axle (7) is provided with
The diminished shaft matched with the cone-shaped inner hole；End bearing (5) before screw mounting seat (2) rear end face and the crankcase
Between be sequentially provided with floor clip (4) and multigroup only head screw (3)；The floor clip (4) is stuck on bent axle (7) and and bent axle
Before case, end bearing (5) fits；Screw mounting seat (2) side wall is provided with and the spiral shell that only head screw (3) matches
Pit.
2. motor of model airplane screw mounting seat positioner according to claim 1, it is characterised in that：Described
Only at least two groups of head screw (3), uniform along screw mounting seat (2) axle center.
3. motor of model airplane screw mounting seat positioner according to claim 1, it is characterised in that：Described
The cone-shaped inner hole taper of screw mounting seat (2) is 10 °～15 °.
4. motor of model airplane screw mounting seat positioner according to claim 1, it is characterised in that：Described
Screw mounting seat (2) outline section is round or regular polygon.
5. motor of model airplane screw mounting seat positioner according to claim 1, it is characterised in that：Described
Before crankcase, end bearing (5) and crankcase rear end bearing (6) are single-groove grooved ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631233.1A CN104474722B (en) | 2014-11-11 | 2014-11-11 | Motor of model airplane screw mounting seat positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631233.1A CN104474722B (en) | 2014-11-11 | 2014-11-11 | Motor of model airplane screw mounting seat positioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104474722A CN104474722A (en) | 2015-04-01 |
| CN104474722B true CN104474722B (en) | 2017-04-05 |
Family
ID=52749408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410631233.1A Active CN104474722B (en) | 2014-11-11 | 2014-11-11 | Motor of model airplane screw mounting seat positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104474722B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109606649A (en) * | 2018-12-12 | 2019-04-12 | 惠阳航空螺旋桨有限责任公司 | A kind of attachment device of coaxial co-axial contra rotating propeller front row propeller and heel row propeller |
| CN112145285B (en) * | 2020-08-14 | 2021-09-24 | 武汉司南翼航航空工程技术有限责任公司 | Low-oil-consumption long-endurance aircraft engine |
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2014
- 2014-11-11 CN CN201410631233.1A patent/CN104474722B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104474722A (en) | 2015-04-01 |
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