CN110173554A - A kind of planetary gear - Google Patents
A kind of planetary gear Download PDFInfo
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- CN110173554A CN110173554A CN201910403547.9A CN201910403547A CN110173554A CN 110173554 A CN110173554 A CN 110173554A CN 201910403547 A CN201910403547 A CN 201910403547A CN 110173554 A CN110173554 A CN 110173554A
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- Prior art keywords
- gear teeth
- gear
- hole
- slot
- pin
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Classifications
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H55/0806—Involute profile
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Abstract
The invention belongs to gear technique field, specifically a kind of planetary gear；Including rack and the No.1 gear teeth；The frame surface and No.1 gear teeth outer surface form complete gear profile face, the side of rack is provided with No.1 slot, the left and right sides shape of No.1 slot is respectively concave, the No.1 gear teeth are magnetized, the upside of the No.1 gear teeth is pendant polar to anti-with under, the No.1 gear teeth are slidably connected with No.1 slot, and the number of the No.1 gear teeth is at least three, the two neighboring No.1 gear teeth it is magnetic to anti-；No.1 limiting device is provided at left and right sides of the No.1 gear teeth；No.1 limit hole is provided at left and right sides of the No.1 slot；The present invention is used in and can not dismantle and replace planetary gear occasion, such as with the planetary gear on unmanned spaceship/spacecraft or celestial body vehicle, and planetary gear be closed type hard tooth surface gear, after planetary gear break of gear tooth, the gear teeth to fracture can be changed to the new gear teeth automatically, to save manpower and financial resources spent by replacement planetary gear.
Description
Technical field
The invention belongs to gear technique field, specifically a kind of planetary gear.
Background technique
Planetary gear refer in addition to can as fixed axis gear around oneself rotation axis rotation other than, their rotation
The gear train that axis is rotated also as planet carrier around the axis of other gears.Rotation around oneself axis is known as " rotation ", around it
The rotation of its Gear axis referred to as " is revolved ", such as the planet in the solar system, is hence obtained one's name.Planetary Gear Transmission and common
Gear drive is compared, and has many particular advantages.Most significant feature be power dividing can be carried out when transmitting power, and
At input shaft and output shaft in the same horizontal line.So Planetary Gear Transmission has been widely used in various mechanical drive trains
Retarder, speed increaser and speed change gear in system.Especially in aircraft due to it has the characteristics that " top load, large transmission ratio "
It is widely applied in vehicle (especially heavy vehicle).Planetary gear has also played very big in the torque transmitting of engine
Effect.The characteristics such as the revolving speed torque due to engine and road traveling demand are far from each other, and the power engine is appropriate
Ground is assigned to driving wheel, can use the above-mentioned characteristic of planetary gear to be converted.Automatic transmission in automobile, and benefit
With these characteristics of planetary gear, obtained by the relative motion relation that clutch and brake change each component different
Transmission ratio.
But since planetary gear structure and working condition are complicated, vibration and noise problem are also than more prominent, enclosed
Hardened gear face planetary gear be easy to happen tooth root fracture failure phenomenon, thus influence the running precision of equipment, transmission efficiency and
Service life, and replace that closed type hard tooth surface planetary gear is comparatively laborious, especially in some disassembly and more gear changings of can not going
Occasion, such as on unmanned spaceship/spacecraft, unmanned celestial body vehicle, after break of gear tooth, the maintenance of closed type hard tooth surface planetary gear and replacement are then
It is very difficult.
Also occurs the technical solution of some replaceable gears in the prior art, such as application No. is 2018208383138
A Chinese patent disclose a kind of gear of replaceable gear teeth, comprising: gear, race, wheel tooth socket, threaded hole one, the gear teeth,
Threaded hole two, hexagon socket head cap screw, set that there are two races on the gear inner wall, it is characterised in that: the outer wall of the gear
On uniformly offer wheel tooth socket, the frontal plane of the gear and rear plane uniformly offer multiple groups screw hole respectively, and every
Group screw hole includes two threaded holes one, and the threaded hole one is connected to wheel tooth socket, the frontal plane of the gear teeth and rear plane
Threaded hole two there are two opening up respectively, the position of the threaded hole one is corresponding with the position of threaded hole two, and the gear teeth are inserted
Enter to take turns tooth socket and is fixedly connected by hexagon socket head cap screw, threaded hole one, threaded hole two with gear.
Although the technical solution is able to use conveniently, but can not dismantle and replace planetary gear occasion, is such as used in
Planetary gear on unmanned spaceship/spacecraft or unmanned celestial body vehicle, and planetary gear be closed type hard tooth surface gear, work as planetary gear
After break of gear tooth, the gear teeth to fracture can not be changed to the new gear teeth automatically, be wanted if the planetary gear that repairing fractures if sending someone
The a large amount of manpower and financial resources expended, therefore there are still many defects for the technical solution.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of planetary gear proposed by the present invention, the present invention are used in and can not dismantle simultaneously
Replace planetary gear occasion, such as with the planetary gear on unmanned spaceship/spacecraft or unmanned celestial body vehicle, and planetary gear to close
The planetary gear gear teeth to fracture can be changed to new wheel automatically after planetary gear break of gear tooth by formula hardened face gear
Tooth, to save manpower and financial resources spent by replacement planetary gear.
The technical solution adopted by the present invention to solve the technical problems is: a kind of planetary gear of the present invention, special
Sign is: including rack and the No.1 gear teeth；The frame surface and No.1 gear teeth outer surface form complete gear profile face, machine
The shape of frame is cylinder, and the side of rack is provided with No.1 slot, and the left and right sides shape of No.1 slot is respectively concave, No.1 slot
Circumferencial direction along rack is uniformly distributed；In slot 1, the shape of No.1 gear teeth two sides is convex for the No.1 gear teeth installation
Type, No.1 gear teeth convex two sides engage with No.1 geosynclinal concave type two sides, and the No.1 gear teeth are magnetized, and the upside of the No.1 gear teeth is under
It is pendant polar to anti-, the No.1 gear teeth are slidably connected with No.1 slot, and the number of the No.1 gear teeth is at least three, the two neighboring No.1 gear teeth
It is magnetic to anti-, the No.1 gear teeth are along the vertical uniform array distribution of No.1 slot；No.1 is provided at left and right sides of the No.1 gear teeth
Limiting device；No.1 limit hole is provided at left and right sides of the No.1 slot；The No.1 limiting device can be with No.1 limit hole
Engaging.When work, the No.1 gear teeth of the top and the No.1 limit hole of No.1 slot are connected by No.1 limiting device, make the No.1 gear teeth
With the complete gear profile of surface composition of rack, when the No.1 break of gear tooth of the top, the No.1 gear teeth of the top because by
The effect of effect and second No.1 gear repulsive force to rack rotary centrifugal force falls off from frame surface, second No.1 wheel
Tooth by third No.1 gear teeth magnetism repulsive interaction, second No.1 gear teeth along No.1 slot be pulled to top, second No.1
The limiting device of gear teeth two sides engages with the No.1 limit hole of No.1 slot two sides, realizes after the damage of the No.1 gear teeth, second
The No.1 gear teeth automatically replace first No.1 gear teeth automatically, realize replacement rapidly in the occasion for being not easy to disassembly, time saving and energy saving
Effect, ensure that planetary gear continues to operate normally.
The internal and external contour line of the No.1 gear teeth is identical involute, in the contoured surface of the two neighboring No.1 gear teeth
In, the lower whorl profile surface of the No.1 gear teeth of top and the upper contoured surface of the lower section No.1 gear teeth are bonded to each other.When work, two neighboring
In the contoured surface of the No.1 gear teeth, the lower whorl profile surface of the No.1 gear teeth of top is bonded to each other with the upper contoured surface of the lower section gear teeth, is owned
The No.1 gear teeth be bonded to each other and form a whole, possess bigger strength and stiffness than the single No.1 gear teeth, the one of the top
Number support of the gear teeth by the No.1 gear teeth of lower section keeps the No.1 gear teeth of the top less flexible and fractures, to increase
The bend resistance ability of the No.1 gear teeth, extends the service life of the No.1 gear teeth.
The No.1 limiting device includes No.1 hole, No.1 spring and No.1 limited block；The No.1 hole is separately positioned on
No.1 gear teeth left and right sides, No.1 hole are blind hole；The No.1 limited block is mounted in No.1 hole, the length of No.1 limited block
Longer than the depth of No.1 limit hole, the vertical sectional shape of No.1 limited block is identical as the vertical sectional shape of No.1 limit hole, No.1
The longitudinal section area of limited block is less than the longitudinal section area of No.1 limit hole；The No.1 spring is compressed spring, No.1 spring
One end be connected with No.1 limited block, the other end of No.1 spring is connected with the No.1 gear teeth.When work, the No.1 gear teeth of the top
The No.1 springs of two sides No.1 limited block is promoted into No.1 limit hole, one side of No.1 limited block engages with No.1 limit hole,
The another side of No.1 limited block engages with No.1 hole, and after the No.1 break of gear tooth of the top, second No.1 gear teeth is by third
Acting on to diamagnetic repulsive force for a No.1 gear teeth, is pulled to top, the No.1 bullet of the left and right sides of second No.1 gear teeth
No.1 limited block is promoted No.1 limit hole by spring, and one end of No.1 limited block engages with No.1 limit hole, No.1 limited block it is another
One end engages with No.1 hole, to second No.1 gear teeth be fixed with No.1 hole, so that the No.1 gear teeth be made to be stably fixed to
Frame surface.
The No.1 spring is compressed spring, and the both ends of No.1 spring are respectively arranged with No.1 hook and No. two hooks；Institute
It states No.1 hook to be fixedly connected with No.1 limited block, the bottom in No. two hooks and No.1 hole is connected.When work, when the No.1 of the top
After break of gear tooth, the No.1 gear teeth that the top fractures are thrown out of from rack due to the effect by rack rotary centrifugal force, by
The No.1 gear teeth to fracture are held in No. two hooks, No.1 hook pulls No.1 limited block, and the No.1 gear teeth to fracture drive No.1 limit
Position block is detached from from No.1 limit hole, to vacate the space of No.1 limit hole, makes the No.1 limited block of second No.1 gear teeth
There is no the engaging of obstacle with No.1 limit hole, the efficiency that the No.1 limited block of second No.1 gear teeth engages with No.1 limit hole is more
It is high.
The No.1 gear teeth of the bottom are provided with No. two gear teeth below；The upside contoured surface and one of No. two gear teeth
The downside contoured surface shape of number gear teeth is identical, and the left and right sides of No. two gear teeth is slided along No.1 slot；The bottom of the No.1 slot is set
It is equipped with No. two blind holes；No. two blind holes are internally provided with pin；Less than No. two diameter of blind hole of the diameter of the pin, column
The upper end of pin is connected with No. two gear teeth bottoms, and the middle part of pin is slided along No. two blind holes, and the outside of pin is provided with No. two springs；
No. two springs are compressed spring, and one end of No. two springs is connected with No. two gear teeth lower ends, the other end and one of No. two springs
The bottom side of number slot is connected.When work, due to the chamfered shape of No. two gear teeth upper sides and the wheel of bottom No.1 gear teeth downside
Profile shape is identical, and No. two springs push up No. two gear teeth, makes table on the upper surface of No. two gear teeth and the No.1 gear teeth of bottom
Face paste is closed, to enhance the rigidity of the No.1 gear teeth, makes the No.1 gear teeth less frangibility, one end and No. two blind holes due to pin
The bottom of connection, the other end of pin and No. two gear teeth is connected, so that the ability that No. two gear teeth bear circumferential load is increased, from
And the ability that the No.1 gear teeth bear circumferential load is also increased, increase the service life of the No.1 gear teeth and No. two gear teeth.
The lower end of the pin is provided with No. two limiting devices；No. two limiting devices include spacer pin, No. three springs
And through-hole；The following of pin is arranged in the through-hole, and the spacer pin is mounted in through-hole, and spacer pin is two, two limits
It sells symmetrical about pin median plane；Boss is provided in the middle part of the spacer pin, boss is slided along through-hole；No. three springs peace
Between two spacer pins, No. three springs are compressed spring；The top side wall of No. two blind holes is equipped with No. two limit holes,
The number of No. two limit holes is two, and No. two limit holes are symmetrical about No. two blind hole median planes；The aperture of No. two limit holes
Not less than the diameter of spacer pin, the number of spacer pin is two, and two spacer pins claim about pin median plane, and spacer pin can be with
Be equal at a distance from the engaging of No. two limit holes, spacer pin axis and No. two limit axially bored lines No. two gear teeth and the top No.1 gear teeth away from
From.When work, after the No.1 gear teeth all fracture, No. two gear teeth are pushed up by No. two springs, and pin drives edge by No. two gear teeth
No. two blind hole upward slidings, when the upper side profile of No. two gear teeth and the rack profile complete gear profile face of composition, spacer pin
Engaged by No. three spring ejections with No. two limit holes, the position of pin is fixed, to make No. two gear teeth that can either bear axial load
Lotus is able to bear radial load again.
Beneficial effects of the present invention are as follows:
1. the present invention is used in and can not dismantle and replace planetary gear occasion, such as on unmanned spaceship/spacecraft or unmanned celestial body vehicle
Planetary gear, and planetary gear be closed type hard tooth surface gear, by No.1 limiting device by the No.1 gear teeth of the top
It is connected with the No.1 limit hole of No.1 slot, makes the No.1 gear teeth and the complete gear profile of the surface composition of rack, when the top
When No.1 break of gear tooth, the No.1 gear teeth of the top are because of the effect and second No.1 gear repulsion by rack rotary centrifugal force
The effect of power falls off from frame surface, second No.1 gear teeth by third No.1 gear teeth magnetism repulsive interaction, second one
Number gear teeth are pulled to top, the limiting device of second No.1 gear teeth two sides and the No.1 limit hole of No.1 slot two sides along No.1 slot
Engaging realizes after the damage of the No.1 gear teeth, and second No.1 gear teeth automatically replaces first No.1 gear teeth automatically, in inconvenience
Replacement is realized rapidly in the occasion of disassembly, and time saving and energy saving effect ensure that planetary gear continues to operate normally.
2. the present invention is by the way that in the contoured surface of the two neighboring No.1 gear teeth, the lower whorl profile surface of the No.1 gear teeth of top is under
The upper contoured surface of square wheel tooth is bonded to each other, and all No.1 gear teeth, which are bonded to each other, to form a whole, and is gathered around than the single No.1 gear teeth
There are a bigger strength and stiffness, the support of the No.1 gear teeth of the top by the No.1 gear teeth of lower section makes the No.1 wheel of the top
Dental transition is not flexible and fractures, to increase the bend resistance ability of the No.1 gear teeth, extends the service life of the No.1 gear teeth.
3. the present invention is after the No.1 break of gear tooth of the top, the No.1 gear teeth that the top fractures by rack due to being rotated
The effect of centrifugal force, is thrown out of from rack, and since No. two hooks hold the No.1 gear teeth to fracture, No.1 hook pulls No.1 limit
Position block, the No.1 gear teeth to fracture drive No.1 limited block to be detached from from No.1 limit hole, so that the space of No.1 limit hole has been vacateed,
The No.1 limited block of second No.1 gear teeth is set not have the engaging of obstacle, the No.1 limit of second No.1 gear teeth with No.1 limit hole
Position block engages more efficient with No.1 limit hole.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is about enlarged drawing at A in Fig. 1；
Fig. 3 is about enlarged drawing at B in Fig. 2；
Fig. 4 is about enlarged drawing at C in Fig. 1；
Fig. 5 is top view of the invention；
In figure: rack 1, No.1 slot 11, No.1 limit hole 12, the No.1 gear teeth 2, No.1 limiting device 3, No.1 hole 31, one
Number spring 32, No.1 limited block 33,6, No. two 4, No. two blind holes 5 of the gear teeth of hook 35, two of No.1 hook 34, two, pin bullets
74, No. two 61, No. two limiting devices 7 of spring, 71, No. three springs 72 of spacer pin, through-hole 73, boss limit holes 75.
Specific embodiment
As described below, side all around involved in the present invention is carried out to a kind of planetary gear of the invention using Fig. 1 to Fig. 5
To with reference to figure 2.
As shown in Figures 1 to 5, a kind of planetary gear of the present invention, it is characterised in that: including rack 1 and No.1 wheel
Tooth 2；1 surface of rack and 2 outer surface of the No.1 gear teeth form complete gear profile face, and the shape of rack 1 is cylinder, machine
The side of frame 1 is provided with No.1 slot 11, and the left and right sides shape of No.1 slot 11 is respectively concave, circle of the No.1 slot 11 along rack 1
Circumferential direction is uniformly distributed；The No.1 gear teeth 2 are mounted in No.1 slot 11, and the shape of 2 two sides of the No.1 gear teeth is convex, No.1
2 convex two sides of the gear teeth engage with 11 concave two sides of No.1 slot, and the No.1 gear teeth 2 are magnetized, the upside and downside of the No.1 gear teeth 2
Polarity is to anti-, and the No.1 gear teeth 2 are slidably connected with No.1 slot 11, and the number of the No.1 gear teeth 2 is at least three, two neighboring No.1 wheel
Tooth 2 it is magnetic to anti-, the No.1 gear teeth 2 are distributed along the vertical uniform array of No.1 slot 11；The left and right sides of the No.1 gear teeth 2 is arranged
There is No.1 limiting device 3；The left and right sides of the No.1 slot 11 is provided with No.1 limit hole 12；3 energy of No.1 limiting device
Engage with No.1 limit hole 12.When work, No.1 limiting device 3 limits the No.1 of the No.1 gear teeth 2 of the top and No.1 slot 11
Position hole 12 is connected, and makes the complete gear profile of surface composition of the No.1 gear teeth 2 Yu rack 1, when the No.1 gear teeth 2 of the top fracture
When, the No.1 gear teeth 2 of the top by 1 rotary centrifugal force of rack because being acted on and the effect of second 2 repulsive force of No.1 gear
It falls off from 1 surface of rack, the repulsive interaction magnetic by the third No.1 gear teeth 2 of second No.1 gear teeth 2, second No.1 gear teeth
2 are pulled to top, the limiting device of second 2 two sides of the No.1 gear teeth and the No.1 limit hole of 11 two sides of No.1 slot along No.1 slot 11
12 engagings realize after the No.1 gear teeth 2 damage, and second No.1 gear teeth 2 automatically replaces first No.1 gear teeth 2 automatically,
Replacement is realized rapidly in the occasion for being not easy to disassembly, and time saving and energy saving effect ensure that planetary gear continues to operate normally.
The internal and external contour line of the No.1 gear teeth 2 is identical involute, in the contoured surface of the two neighboring No.1 gear teeth 2
In, the lower whorl profile surface of the No.1 gear teeth 2 of top and the upper contoured surface of the lower section No.1 gear teeth 2 are bonded to each other.When work, adjacent two
In the contoured surface of a No.1 gear teeth 2, the lower whorl profile surface of the No.1 gear teeth 2 of top is bonded to each other with the upper contoured surface of the lower section gear teeth,
All No.1 gear teeth 2, which are bonded to each other, to form a whole, and possesses bigger strength and stiffness than the single No.1 gear teeth 2, most upper
Support of the No.1 gear teeth 2 of side by the No.1 gear teeth 2 of lower section keeps the No.1 gear teeth 2 of the top less flexible and fractures, from
And the bend resistance ability of the No.1 gear teeth 2 is increased, extend the service life of the No.1 gear teeth 2.
The No.1 limiting device 3 includes No.1 hole 31, No.1 spring 32 and No.1 limited block 33；The No.1 hole 31 is divided
It She Zhi be not blind hole in 2 left and right sides of the No.1 gear teeth, No.1 hole 31；The No.1 limited block 33 is mounted in No.1 hole 31,
The length of No.1 limited block 33 is longer than the depth of No.1 limit hole 12, the vertical sectional shape and No.1 limit hole of No.1 limited block 33
12 vertical sectional shape is identical, and the longitudinal section area of No.1 limited block 33 is less than the longitudinal section area of No.1 limit hole 12；It is described
No.1 spring 32 is compressed spring, and one end of No.1 spring 32 is connected with No.1 limited block 33, the other end of No.1 spring 32 and
The No.1 gear teeth 2 are connected.When work, No.1 limited block 33 is promoted one by the No.1 spring 32 of the two sides of the No.1 gear teeth 2 of the top
Number limit hole 12, one side of No.1 limited block 33 engage with No.1 limit hole 12, the another side and No.1 hole of No.1 limited block 33
31 engagings, after the No.1 gear teeth 2 when the top fracture, second No.1 gear teeth 2 is by the third No.1 gear teeth 2 to diamagnetic
Repulsive force effect, is pulled to top, and the No.1 spring 32 of the left and right sides of second No.1 gear teeth 2 promotes No.1 limited block 33
One end of No.1 limit hole 12, No.1 limited block 33 engages with No.1 limit hole 12, the other end and No.1 of No.1 limited block 33
Hole 31 engages, thus second No.1 gear teeth 2 and No.1 hole 31 are fixed, so that the No.1 gear teeth 2 be made to be stably fixed to rack 1
Surface.
The No.1 spring 32 is compressed spring, and the both ends of No.1 spring 32 are respectively arranged with No.1 hook 34 and No. two hooks
Son 35；The No.1 hook 34 is fixedly connected with No.1 limited block 33, and the bottom in No. two hooks 35 and No.1 hole 31 is connected.Work
When, after the No.1 gear teeth 2 when the top fracture, the No.1 gear teeth 2 that the top fractures are due to the work by 1 rotary centrifugal force of rack
With being thrown out of from rack 1, since No. two hooks 35 hold the No.1 gear teeth 2 to fracture, No.1 hook 34 pulls No.1 limited block
33, the No.1 gear teeth 2 to fracture drive No.1 limited block 33 to be detached from from No.1 limit hole 12, to vacate No.1 limit hole 12
Space makes the engaging of the not no obstacle of the No.1 limited block 33 of second No.1 gear teeth 2 and No.1 limit hole 12, second No.1 wheel
The No.1 limited block 33 of tooth 2 engages more efficient with No.1 limit hole 12.
The No.1 gear teeth 2 of the bottom are provided with No. two gear teeth 4 below；The upside contoured surface of No. two gear teeth 4
Identical as the downside contoured surface shape of the No.1 gear teeth 2, the left and right sides of No. two gear teeth 4 is slided along No.1 slot 11；The No.1 slot
11 bottom is provided with No. two blind holes 5；No. two blind holes 5 are internally provided with pin 6；The diameter of the pin 6 is less than two
The diameter of number blind hole 5, the upper end of pin 6 are connected with No. two 4 bottoms of the gear teeth, and the middle part of pin 6 is slided along No. two blind holes 5, pin 6
Outside be provided with No. two springs 61；No. two springs 61 are compressed spring, one end of No. two springs 61 under No. two gear teeth 4
End is connected, and the other end of No. two springs 61 is connected with the bottom side of No.1 slot 11.When work, due to the wheel of No. two 4 upper sides of the gear teeth
Profile shape is identical as the chamfered shape of 2 downside of the bottom No.1 gear teeth, and No. two springs 61 push up No. two gear teeth 4, makes two
Number upper surface of the gear teeth 4 is bonded with 2 upper surface of the No.1 gear teeth of bottom, to enhance the rigidity of the No.1 gear teeth 2, makes No.1
The less frangibility of the gear teeth 2, since one end of pin 6 is connect with No. two blind holes 5, the bottom of the other end of pin 6 and No. two gear teeth 4
It is connected, so that the ability that No. two gear teeth 4 bear circumferential load is increased, so that also increasing the No.1 gear teeth 2 bears circumferential load
Ability, increase the service life of the No.1 gear teeth 2 and No. two gear teeth 4.
The lower end of the pin 6 is provided with No. two limiting devices 7；No. two limiting devices 7 include spacer pin 71, three
Spring 72 and through-hole 73；The following of pin 6 is arranged in the through-hole 73, and the spacer pin 71 is mounted in through-hole 73, spacer pin
71 be two, and two spacer pins 71 are symmetrical about 6 median plane of pin；The middle part of the spacer pin 71 is provided with boss 74, boss
74 slide along through-hole 73；No. three springs 72 are mounted between two spacer pins 71, and No. three springs 72 are compressed spring；It is described
The top side wall of No. two blind holes 5 is equipped with No. two limit holes 75, and the number of No. two limit holes 75 is two, and No. two limit holes 75 close
It is symmetrical in No. two 5 median planes of blind hole；The aperture of No. two limit holes 75 is not less than the diameter of spacer pin 71, of spacer pin 71
Number is two, and two spacer pins 71 claim about 6 median plane of pin, and spacer pin 71 can engage with No. two limit holes 75, spacer pin
71 axis are equal to No. two gear teeth 4 at a distance from the top No.1 gear teeth 2 at a distance from No. two 75 axis of limit hole.When work, when one
After number gear teeth 2 all fracture, No. two gear teeth 4 are pushed up by No. two springs 61, and pin 6 is driven by No. two gear teeth 4 along No. two blind holes 5
Upward sliding, when the upper side profile of No. two gear teeth 4 and 1 profile of the rack complete gear profile face of composition, spacer pin 71 is by three
The ejection of number spring 72 engages with No. two limit holes 75, and the position of pin 6 is fixed, to make No. two gear teeth 4 that can either bear axial direction
Load is able to bear radial load again.
Specific workflow is as follows:
When work, the No.1 gear teeth 2 of the top and the No.1 limit hole 12 of No.1 slot 11 are connected by No.1 limiting device 3,
The complete gear profile of surface composition for making the No.1 gear teeth 2 Yu rack 1, when the No.1 gear teeth 2 when the top fracture, the top
The No.1 gear teeth 2 by 1 rotary centrifugal force of rack because being acted on and the effect of second No.1 gear mesh repulsive force is from 1 surface of rack
It falls off, the repulsive interaction magnetic by the third No.1 gear teeth 2 of second No.1 gear teeth 2, second No.1 gear teeth 2 is along No.1 slot 11
It is pulled to top, the limiting device of second 2 two sides of the No.1 gear teeth engages with the No.1 limit hole 12 of 11 two sides of No.1 slot, realizes
After the No.1 gear teeth 2 damage, second No.1 gear teeth 2 automatically replaces first No.1 gear teeth 2 automatically, is being not easy to dismantle
Occasion realize replacement rapidly, time saving and energy saving effect ensure that planetary gear continues to operate normally；In two neighboring No.1 wheel
In the contoured surface of tooth 2, the lower whorl profile surface of the No.1 gear teeth 2 of top is bonded to each other with the upper contoured surface of the lower section gear teeth, and all one
Number gear teeth 2, which are bonded to each other, to form a whole, and possesses bigger strength and stiffness, the No.1 of the top than the single No.1 gear teeth 2
Support of the gear teeth 2 by the No.1 gear teeth 2 of lower section keeps the No.1 gear teeth 2 of the top less flexible and fractures, to increase
The bend resistance ability of the No.1 gear teeth 2, extends the service life of the No.1 gear teeth 2；The No.1 of the two sides of the No.1 gear teeth 2 of the top
No.1 limited block 33 is promoted No.1 limit hole 12 by spring 32, and one side of No.1 limited block 33 engages with No.1 limit hole 12, and one
The another side of number limited block 33 engages with No.1 hole 31, after the No.1 gear teeth 2 when the top fracture, second No.1 gear teeth 2 by
Acting on to diamagnetic repulsive force for the third No.1 gear teeth 2, is pulled to top, the left and right sides of second No.1 gear teeth 2
No.1 limited block 33 is promoted No.1 limit hole 12 by No.1 spring 32, and one end of No.1 limited block 33 and No.1 limit hole 12 block
It closing, the other end of No.1 limited block 33 engages with No.1 hole 31, thus second No.1 gear teeth 2 and No.1 hole 31 are fixed, from
And the No.1 gear teeth 2 is made to be stably fixed to 1 surface of rack；After the No.1 gear teeth 2 when the top fracture, No.1 that the top fractures
The gear teeth 2 are thrown out of from rack 1 due to the effect by 1 rotary centrifugal force of rack, since No. two hooks 35 hold fracture one
Number gear teeth 2, No.1 hook 34 pull No.1 limited block 33, and the No.1 gear teeth 2 to fracture drive No.1 limited block 33 to limit from No.1
Hole 12 is detached from, to vacate the space of No.1 limit hole 12, limits the No.1 limited block 33 of second No.1 gear teeth 2 and No.1
The engaging of the not no obstacle in position hole 12, the efficiency that the No.1 limited block 33 of second No.1 gear teeth 2 engages with No.1 limit hole 12 is more
It is high；Since the chamfered shape of No. two 4 upper sides of the gear teeth is identical as the chamfered shape of 2 downside of the bottom No.1 gear teeth, No. two bullets
Spring 61 pushes up No. two gear teeth 4, is bonded the upper surface of No. two gear teeth 4 with 2 upper surface of the No.1 gear teeth of bottom, to increase
The strong rigidity of the No.1 gear teeth 2, makes the less frangibility of the No.1 gear teeth 2, since one end of pin 6 is connect with No. two blind holes 5, pin
The bottom of 6 other end and No. two gear teeth 4 is connected, so that the ability that No. two gear teeth 4 bear circumferential load is increased, to also increase
The ability for having added the No.1 gear teeth 2 to bear circumferential load, increases the service life of the No.1 gear teeth 2 and No. two gear teeth 4；When No.1 wheel
After tooth 2 all fractures, No. two gear teeth 4 are pushed up by No. two springs 61, and pin 6 is driven upward along No. two blind holes 5 by No. two gear teeth 4
Sliding, when the upper side profile of No. two gear teeth 4 and 1 profile of the rack complete gear profile face of composition, spacer pin 71 is by No. three bullets
The ejection of spring 72 engages with No. two limit holes 75, and the position of pin 6 is fixed, to make No. two gear teeth 4 that can either bear axial load
It is able to bear radial load again.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of planetary gear, it is characterised in that: including rack (1) and the No.1 gear teeth (2)；Rack (1) surface and No.1
The gear teeth (2) outer surface forms complete gear profile face, and the shape of rack (1) is cylinder, and the side of rack (1) is provided with one
Number slot (11), the left and right sides shape of No.1 slot (11) is respectively concave, and No.1 slot (11) is uniform along the circumferencial direction of rack (1)
Distribution；The No.1 gear teeth (2) are mounted in No.1 slot (11), and the shape of the No.1 gear teeth (2) two sides is convex, the No.1 gear teeth
(2) convex two sides engage with No.1 slot (11) concave two sides, and the No.1 gear teeth (2) are magnetized, the upside of the No.1 gear teeth (2) with
Under it is pendant polar to anti-, the No.1 gear teeth (2) are slidably connected with No.1 slot (11), and the number of the No.1 gear teeth (2) is at least three, adjacent
Two No.1 gear teeth (2) it is magnetic to anti-, the No.1 gear teeth (2) are along the vertical uniform array distribution of No.1 slot (11)；The No.1 wheel
No.1 limiting device (3) are provided at left and right sides of tooth (2)；No.1 limit hole is provided at left and right sides of the No.1 slot (11)
(12)；The No.1 limiting device (3) can engage with No.1 limit hole (12).
2. a kind of planetary gear according to claim 1, it is characterised in that: the internal and external contour line of the No.1 gear teeth (2)
It is identical involute, in the contoured surface of the two neighboring No.1 gear teeth (2), the lower whorl profile surface of the No.1 gear teeth (2) of top
It is bonded to each other with the upper contoured surface of the lower section No.1 gear teeth (2).
3. a kind of planetary gear according to claim 2, it is characterised in that: the No.1 limiting device (3) includes No.1
Hole (31), No.1 spring (32) and No.1 limited block (33)；The No.1 hole (31) is separately positioned on the No.1 gear teeth (2) left and right two
Side, No.1 hole (31) are blind hole；The No.1 limited block (33) is mounted in No.1 hole (31), the length of No.1 limited block (33)
Spend, the vertical sectional shape of No.1 limited block (33) and the longitudinal section of No.1 limit hole (12) longer than the depth of No.1 limit hole (12)
Shape is identical, and the longitudinal section area of No.1 limited block (33) is less than the longitudinal section area of No.1 limit hole (12)；The No.1 bullet
Spring (32) is compressed spring, and one end of No.1 spring (32) is connected with No.1 limited block (33), the other end of No.1 spring (32)
It is connected with the No.1 gear teeth (2).
4. a kind of planetary gear according to claim 3, it is characterised in that: the No.1 spring (32) is compressed spring,
The both ends of No.1 spring (32) are respectively arranged with No.1 hook (34) and No. two hooks (35)；The No.1 hook (34) and No.1
Limited block (33) is fixedly connected with, and the bottom of No. two hooks (35) and No.1 hole (31) is connected.
5. a kind of planetary gear according to claim 3, it is characterised in that: under the No.1 gear teeth (2) of the bottom
While being provided with No. two gear teeth (4)；The upside contoured surface of No. two gear teeth (4) and the downside contoured surface shape of the No.1 gear teeth (2)
Identical, the left and right sides of No. two gear teeth (4) is slided along No.1 slot (11)；The bottom of the No.1 slot (11) is provided with No. two blind holes
(5)；No. two blind holes (5) are internally provided with pin (6)；Less than No. two blind holes (5) of diameter of the pin (6) it is straight
Diameter, the upper end of pin (6) are connected with No. two gear teeth (4) bottoms, and the middle part of pin (6) is slided along No. two blind holes (5), pin (6)
Outside be provided with No. two springs (61)；No. two springs (61) be compressed spring, one end of No. two springs (61) with No. two
The gear teeth (4) lower end is connected, and the other end of No. two springs (61) is connected with the bottom side of No.1 slot (11).
6. a kind of planetary gear according to claim 5, it is characterised in that: the lower end of the pin (6) is provided with No. two
Limiting device (7)；No. two limiting devices (7) include spacer pin (71), No. three springs (72) and through-hole (73)；The through-hole
(73) it is arranged in the following of pin (6), the spacer pin (71) is mounted in through-hole (73), and spacer pin (71) is two, two
Spacer pin (71) is symmetrical about pin (6) median plane；It is provided with boss (74) in the middle part of the spacer pin (71), boss (74) edge
Through-hole (73) sliding；No. three springs (72) are mounted between two spacer pins (71), and No. three springs (72) are compressed spring；
The top side wall of No. two blind holes (5) is equipped with No. two limit holes (75), and the number of No. two limit holes (75) is two, No. two
Limit hole (75) is symmetrical about No. two blind hole (5) median planes；The aperture of No. two limit holes (75) is not less than spacer pin (71)
Diameter, the number of spacer pin (71) is two, and two spacer pins (71) claim about pin (6) median plane, spacer pin (71)
It can engage with No. two limit holes (75), spacer pin (71) axis is equal to No. two gear teeth at a distance from No. two limit hole (75) axis
(4) at a distance from the top No.1 gear teeth (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403547.9A CN110173554A (en) | 2019-05-15 | 2019-05-15 | A kind of planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403547.9A CN110173554A (en) | 2019-05-15 | 2019-05-15 | A kind of planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110173554A true CN110173554A (en) | 2019-08-27 |
Family
ID=67691195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910403547.9A Withdrawn CN110173554A (en) | 2019-05-15 | 2019-05-15 | A kind of planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110173554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389873A (en) * | 2021-06-10 | 2021-09-14 | 哈尔滨工业大学（威海） | Combined gear device for test |
-
2019
- 2019-05-15 CN CN201910403547.9A patent/CN110173554A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389873A (en) * | 2021-06-10 | 2021-09-14 | 哈尔滨工业大学（威海） | Combined gear device for test |
| CN113389873B (en) * | 2021-06-10 | 2022-05-31 | 哈尔滨工业大学（威海） | Combined gear device for test |
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Application publication date: 20190827 |
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| WW01 | Invention patent application withdrawn after publication |