CN206429619U - It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia - Google Patents
It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia Download PDFInfo
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- CN206429619U CN206429619U CN201720093079.6U CN201720093079U CN206429619U CN 206429619 U CN206429619 U CN 206429619U CN 201720093079 U CN201720093079 U CN 201720093079U CN 206429619 U CN206429619 U CN 206429619U
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- plate
- ring flat
- ring
- driving crank
- driving
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Abstract
The utility model disclose it is a kind of can balance the three-ring speed reducer of ring flat-plate moment of inertia, including：The first driving crank, the second driving crank, the driving shaft of the 3rd driving crank are disposed with the axial direction；The first driving crank, the second driving crank, the driven shaft of the 3rd driving crank are disposed with the axial direction；The ring flat-plate being connected through the hinge respectively with driving shaft and driven shaft, the first external gear is disposed with the axial direction, second external gear, the output shaft of 3rd external gear, some through holes are symmetrically arranged with the circumference of the second ring flat-plate, some blind holes corresponding to through hole are provided with the first ring flat-plate, the 3rd ring flat-plate；It is arranged at blind hole and some shear springs in through hole.The utility model solves the three-ring speed reducer of the prior art with trimming moment function, complicated, and weight and thickness are big, the technical problem such as production cost height.
Description
Technical field
The utility model is related to mechanical transmission fields, and more particularly to a kind of three rings that can balance ring flat-plate moment of inertia slow down
Device.
Background technology
The decelerator being widely used at present includes three-ring speed reducer.Its general principle is in three sets of parallel-crank mechanism
Three pieces of ring flat-plates do translational motion, by the internal tooth wheel drive output shaft central gear on ring flat-plate by movement output.
The operation principle of three-ring speed reducer is as shown in Figure 1.DCFE is a parallel-crank mechanism in Fig. 1, and ring gear is connected
On connecting rod CF, while ring gear is engaged with the external gear on output shaft.When driving crank rotates around D points, ring gear is (even
Bar) translational motion is done, rotated by the driving output shaft that engages with external gear around B points, so that output campaign.It is parallel in order to overcome
Quadrangular mechanism takes three sets of identical parallelogram in the uncertain phenomenon of motion that respective location is present, three-ring speed reducer
The mechanism mode that mutually 120 ° of mistake is arranged.In the practical structures of three-ring speed reducer, three driving cranks being fixed together and solid
Three driving cranks connected together do translational motion using the structure that three eccentric bushings are installed on an axle, but in the presence of three pieces
Ring flat-plate, and three pieces of ring flat-plates are arranged in order vertically.
In the moving link of three-ring speed reducer, two crank axles (wherein one is motion inlet shaft), output shafts are
Axially symmetric structure, ignores its centrifugal intertia force and disregards, discuss the inertia force of three pieces of ring flat-plates.Due to three ring flat-plates structure and
Size is essentially identical and be symmetrical structure, it is believed that ring flat-plate it is identical in quality, and the barycenter of ring flat-plate component is located at ring flat-plate
Symmetrical centre (the A points in Fig. 1).Make translational motion due to three pieces of ring flat-plates in parallel-crank mechanism again, thereon any point
Movement locus be circumference.So center of mass point A movement locus is using B as the center of circle, using crank length CD as the circumference of radius.
As driving crank constant velocity rotation, center of mass point A moves at the uniform velocity along the circumference, so as to produce centrifugal intertia force Pi。
Because the phase of three pieces of ring flat-plate barycenter is mutually wrong 120 °, so pressing from both sides hexagonal angle degree between its centrifugal intertia force, and make
With on using CD as the circumference of radius, as shown in Figure 2.
Because three centrifugal intertia forces are equal in magnitude, direction is mutually wrong 120 °, so(i is the label of ring flat-plate).
Coordinate system is set up as shown in Figure 1, 2, and three centrifugal intertia forces are acted in three planes vertical with Z axis.It is false
If adjacent ring board shaft to the distance between plane of symmetry be a, then three inertia force Pi1、Pi2、Pi3It is to the square of X, Y, Z axis：
When decelerator is operated, inertia force has a moment of inertia acted on clockwise to Y-axis in the horizontal plane.Therefore three pieces of rings
Although plate is static balance, but unbalance dynamic, so as to produce impact and vibration.Therefore the moment of inertia progress to ring flat-plate is had to
Balance.
In the prior art, it is proposed that the method for several three-ring speed reducer balances, wherein typical full balance double-drive moves three rings
Decelerator, such as utility model patent (200920012531.7) and " full balanced dual drive three-ring speed reducer design is with developing " (machine
Tool is designed to be delivered with manufacture the 2nd phase in 2011, Huang Kai) etc., its drip irrigation device is middle ring flat-plate and the symmetrical cloth of both sides ring flat-plate
Put, and the thickness of middle ring flat-plate is both sides ring flat-plate thickness sum, i.e., the quality of middle ring flat-plate is 2 times of both sides ring flat-plate quality.This
A little schemes increase the thickness and weight of ring flat-plate, improve cost, and need dual drive, complicated, and cost is high.
Utility model content
The utility model purpose be to provide it is a kind of can balance the three-ring speed reducer of ring flat-plate moment of inertia, solve three rings and slow down
The prior art construction of device balancing inertia torque is complicated, and weight and thickness are big, the technical problem such as production cost height.
The technical scheme that the utility model is used is：It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia, bag
Include：
The first driving crank, the second driving crank, the driving shaft of the 3rd driving crank, first are disposed with the axial direction
Driving crank, the second driving crank, the 3rd driving crank are mutually 120 ° of angles and adjacent axial spacing is identical；
The first driving crank, the second driving crank, the driven shaft of the 3rd driving crank are disposed with the axial direction；
The ring flat-plate being connected through the hinge respectively with driving shaft and driven shaft, ring flat-plate includes the first ring flat-plate, the second ring flat-plate, the 3rd
Ring flat-plate, and it is provided with identical ring gear；
First ring flat-plate and the first driving crank and the first driving crank hinge connection, the second ring flat-plate and the second driving crank and
Second driving crank hinge connection, the 3rd ring flat-plate and the 3rd driving crank and the 3rd driving crank hinge connection；
The first external gear, the second external gear, the output shaft of the 3rd external gear, the first external tooth are disposed with the axial direction
Wheel, the second external gear, the 3rd external gear respectively with the first ring flat-plate, the second ring flat-plate, the 3rd ring flat-plate ring gear engagement, and with it is defeated
Shaft is fixedly connected by key；
Some through holes are symmetrically arranged with the circumference of the second ring flat-plate, are provided with the first ring flat-plate, the 3rd ring flat-plate pair
Should be in some blind holes of through hole；
It is arranged at blind hole and some shear springs in through hole.
Further, some through holes are symmetrically arranged with the circumference of the second ring flat-plate, on the first ring flat-plate, the 3rd ring flat-plate
Some blind holes being provided with corresponding to through hole are specifically that 4 through holes are symmetrically arranged with the circumference of the second ring flat-plate, in the first ring
4 blind holes corresponding to through hole are provided with plate, the 3rd ring flat-plate.
Further, it is specifically a rubber shear spring or tension and compression bullet to be arranged at blind hole with some shear springs in through hole
Spring.
Further, be specifically ring flat-plate with driving shaft and the hinged ring flat-plate of driven shaft by eccentric bushing and driving shaft and
Driven shaft hinge connection.
By setting up the technical scheme of shear spring between each ring flat-plate, effectively reduction has even completely eliminated dynamic injustice
Weighing apparatus, and it is simple in construction, weight, size and production cost are basically unchanged.
Brief description of the drawings
Fig. 1 is the principle schematic of three-ring speed reducer in the utility model；
Fig. 2 is the dynamic balance analysis of three-ring speed reducer；
Fig. 3 is a kind of schematic diagram for the three-ring speed reducer that can balance ring flat-plate moment of inertia；
Fig. 4 is the schematic cross-section at G-G in Fig. 3；
Fig. 5 is a kind of the second ring flat-plate schematic diagram of three-ring speed reducer that can balance ring flat-plate moment of inertia；
Fig. 6 is a kind of driving shaft schematic diagram for the three-ring speed reducer that can balance ring flat-plate moment of inertia；
Fig. 7 is a kind of left view of the driving shaft for the three-ring speed reducer that can balance ring flat-plate moment of inertia；
Fig. 8 is a kind of driven shaft schematic diagram for the three-ring speed reducer that can balance ring flat-plate moment of inertia；
Fig. 9 is a kind of driven shaft left view for the three-ring speed reducer that can balance ring flat-plate moment of inertia；
Figure 10 is a kind of schematic diagram of the single shear spring for the three-ring speed reducer that can balance ring flat-plate moment of inertia；
Figure 11 is 2 spring stress analyses at a kind of same phase for the three-ring speed reducer that can balance ring flat-plate moment of inertia
Schematic diagram.
Figure 12 is a kind of three-ring speed reducer ring flat-plate inertia force that can balance ring flat-plate moment of inertia and spring force analysis signal
Figure.
Embodiment
It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia as shown in Fig. 3-Fig. 9, including：
3 eccentric bushings of setting are passed sequentially through in the axial direction constitutes the first driving crank 11, the second driving crank 12, the 3rd master
The driving shaft 1 of dynamic crank 13, and the first driving crank 11, the second driving crank 12, the 3rd driving crank 13 are mutually 120 ° of angles
And adjacent axial spacing is identical, as Figure 6-Figure 7；
Be disposed with the first driving crank 51 in the axial direction, the second driving crank 52, the 3rd driving crank 53 it is driven
Axle 5, such as Fig. 8-Fig. 9；
The ring flat-plate being connected through the hinge respectively with driving shaft 1 and driven shaft 5, ring flat-plate includes the first ring flat-plate 21, the second ring flat-plate
22, the 3rd ring flat-plate 23, and identical ring gear is provided with, as shown in Figure 5；
First ring flat-plate 21 and the first driving crank 11 and the hinge connection of the first driving crank 51, the second ring flat-plate 22 and the second master
The hinge connection of 12 and second driving crank of dynamic crank 52, the 3rd ring flat-plate 23 is cut with scissors with the 3rd driving crank 13 and the 3rd driving crank 53
Chain is connected, as shown in Figure 3；
The first external gear 41, the second external gear 42, the output shaft 4 of the 3rd external gear 43, are disposed with the axial direction
One external gear 41, the second external gear 42, the 3rd external gear 43 respectively with the first ring flat-plate 21, the second ring flat-plate 22, the 3rd ring flat-plate 23
Ring gear is engaged, and is fixedly connected with output shaft 4 by key, as shown in Figure 3；
Some through holes 7 are symmetrically arranged with the circumference of the second ring flat-plate 22, are all provided with the first ring flat-plate 21, the 3rd ring flat-plate 23
It is equipped with some blind holes 6 corresponding to through hole 7；
Blind hole 6 and some shear springs 3 in through hole 7 are arranged at, as shown in Figure 4.
Further, some through holes 7 are symmetrically arranged with the circumference of the second ring flat-plate 22, in the first ring flat-plate 21, the 3rd ring
Some blind holes 6 being provided with plate 23 corresponding to through hole 7 are specifically to be symmetrically arranged with 4 on the circumference of the second ring flat-plate 22 to lead to
Hole 7, is provided with 4 blind holes 6 corresponding to through hole 7 on the first ring flat-plate 21, the 3rd ring flat-plate 23.
Further, it is specifically 8 rubber shear springs or drawing to be arranged at blind hole 6 with some shear springs 3 in through hole 7
Pressing spring.
Further, it is specifically that ring flat-plate 2 passes through eccentric bushing and active with driving shaft 1 and the hinged ring flat-plate 2 of driven shaft 5
Axle 1 and the hinge connection of driven shaft 5.In addition, ring flat-plate 2 passes through revolute pair and driving shaft 1 and the hinge connection of driven shaft 5.
It should be noted that first, second and third driven song on first, second and third driving crank and driven shaft on driving shaft
Handle, can be configured in engineering practice by way of setting eccentric bushing.
Underdraw principle of the present utility model below, and each ring flat-plate can produce a centrifugation inertia in motion process
Power, the centrifugal intertia force is in the symmetrical plane of ring flat-plate, if the vector of centrifugal intertia force or its torque is zero, it becomes possible to disappear
Except imbalance.The purpose that shear spring is set between ring flat-plate is exactly in this way, the counter spring force square produced using shear spring (is cut
Shear force square) the centrifugal intertia force square that ring flat-plate is produced is offset, so as to reduce or eliminate the unbalance dynamic of whole device.
The following is quantitative analysis：
Assuming that offer M21 on the circumference of the second ring flat-plate 22, M22, M23,4 through holes such as M24, in the first ring flat-plate 21,
The corresponding position of 3rd ring flat-plate 23 opens up blind hole M11, M12, M13, M14, M31, M32, M33, M34 respectively, is used as shear spring
Mounting hole；8 rubber shear springs as shown in Figure 10 are installed in shear spring mounting hole.Decelerator will be forced when installing and cut
Cut spring and produce detrusion, the shearing force for installing rear spring is respectively applied on three pieces of ring flat-plates.
As shown in figure 11, by taking the upper left spring center M21 of the second ring flat-plate 22 as an example, when the M11 on the first ring flat-plate 21 with
When M21 is overlapped, the deflection of spring is 0, and bounce is 0.Three sets of mechanisms mutual wrong 120 ゜ when now due to installing, when the second ring flat-plate 22
When upper left side spring center point position moves to the M21 points shown in Figure 11, the upper left side spring center of the first ring flat-plate 21 is located at M11 points,
The upper left spring center of 3rd ring flat-plate 23 is located at M31 points.The deflection of spring is b, and the shearing force F=Kb, K of spring are spring
Rigidity.
Because 4 shear spring central distributions are on using A as the circumference in the center of circle, and stress is identical with deformation.Therefore by 4
The counter-force of individual spring is uniformly reduced to：A points are acted on, size is F12=4F1, a constant total power of direction.Wherein F12Represent
Counter spring force between first ring flat-plate 21 and the second ring flat-plate 22.F1Represent the bullet that one of blind hole on the first ring flat-plate 21 is subject to
Spring counter-force.
Centrifugal intertia force, the shearing force of shear spring are considered simultaneously, then the force diagram of ring flat-plate is as shown in figure 12, wherein F23Table
Show the counter spring force of second 22 pair of the 3rd ring flat-plate 23 of ring flat-plate, F21Represent the counter spring force of second 22 pair of first ring flat-plate 21 of ring flat-plate, F32
Represent the counter spring force of the 3rd 23 pair of second ring flat-plate 22 of ring flat-plate.
Install additional after shear spring, three ring flat-plates are in inertia force Pi1、Pi2、Pi3, counter spring force F1,F3It is right under collective effect
The resultant couple of three reference axis is：
When decelerator is operated, install additional after shear spring, three ring flat-plates are right under inertia force, counter spring force collective effect
The torque of three reference axis can significantly reduce, if meeting
2a·F3cos60-2a·Pi3Cos30=0
That is K=m ω2=0 condition, then the torque to three reference axis is 0, reaches the purpose of complete equipilibrium.
By setting up the technical scheme of shear spring between each ring flat-plate, unbalance dynamic is effectively reduced or completely eliminates,
And it is simple in construction, weight, size and the production cost of three-ring speed reducer are basically unchanged.
More than, embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto,
Any one skilled in the art the change that can readily occur in or replaces in the technical scope that the utility model is disclosed
Change, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claim
Protection domain is defined.
Claims (4)
1. a kind of can balance the three-ring speed reducer of ring flat-plate moment of inertia, it is characterised in that including：
The first driving crank (11), the second driving crank (12), the master of the 3rd driving crank (13) are disposed with the axial direction
Moving axis (1), first driving crank (11), the second driving crank (12), the 3rd driving crank (13) be mutually 120 degree of angles and
Adjacent axial spacing is identical；
Be disposed with the first driving crank (51) in the axial direction, the second driving crank (52), the 3rd driving crank (53) from
Moving axis (5)；
The ring flat-plate being connected through the hinge respectively with the driving shaft (1) and the driven shaft (5), the ring flat-plate includes the first ring flat-plate
(21), the second ring flat-plate (22), the 3rd ring flat-plate (23), and it is provided with identical ring gear；
First ring flat-plate (21) and first driving crank (11) and the first driving crank (51) hinge connection, described second
Ring flat-plate (22) and second driving crank (12) and the second driving crank (52) hinge connection, the 3rd ring flat-plate (23) and institute
State the 3rd driving crank (13) and the 3rd driving crank (53) hinge connection；
The first external gear (41), the second external gear (42), the output shaft of the 3rd external gear (43) are disposed with the axial direction
(4), first external gear (41), the second external gear (42), the 3rd external gear (43) respectively with first ring flat-plate (21),
Two ring flat-plates (22), the ring gear engagement of the 3rd ring flat-plate (23), and be fixedly connected with the output shaft (4) by key；
Some through holes (7) are symmetrically arranged with the circumference of second ring flat-plate (22), in first ring flat-plate (21), the 3rd ring
Some blind holes (6) corresponding to the through hole (7) are provided with plate (23)；
It is arranged at the blind hole (6) and some shear springs (3) in the through hole (7).
2. a kind of the three-ring speed reducer of ring flat-plate moment of inertia can be balanced according to claim 1, it is characterised in that in institute
Some through holes (7) are symmetrically arranged with the circumference for stating the second ring flat-plate (22), on first ring flat-plate (21), the 3rd ring flat-plate (23)
Some blind holes (6) being provided with corresponding to the through hole (7) are specifically symmetrically to be set on the circumference of second ring flat-plate (22)
4 through holes (7) are equipped with, 4 corresponding to the through hole (7) are provided with first ring flat-plate (21), the 3rd ring flat-plate (23)
Individual blind hole (6).
3. a kind of the three-ring speed reducer of ring flat-plate moment of inertia can be balanced according to claim 2, it is characterised in that set
Some shear springs (3) in the blind hole (6) and the through hole (7) are specifically 8 rubber shear springs or drawing-pressing spring.
4. a kind of the three-ring speed reducer of ring flat-plate moment of inertia can be balanced according to claim 3, it is characterised in that with institute
State driving shaft (1) and the hinged ring flat-plate (2) of the driven shaft (5) be specifically the ring flat-plate (2) by eccentric bushing with
The driving shaft (1) and the driven shaft (5) hinge connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720093079.6U CN206429619U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720093079.6U CN206429619U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429619U true CN206429619U (en) | 2017-08-22 |
Family
ID=59590573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720093079.6U Expired - Fee Related CN206429619U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to balance the three-ring speed reducer of ring flat-plate moment of inertia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429619U (en) |
-
2017
- 2017-01-24 CN CN201720093079.6U patent/CN206429619U/en not_active Expired - Fee Related
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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: 20170822 Termination date: 20180124 |