CN105927674B - A kind of flexural pivot transmission shaft - Google Patents
A kind of flexural pivot transmission shaft Download PDFInfo
- Publication number
- CN105927674B CN105927674B CN201610554161.4A CN201610554161A CN105927674B CN 105927674 B CN105927674 B CN 105927674B CN 201610554161 A CN201610554161 A CN 201610554161A CN 105927674 B CN105927674 B CN 105927674B
- Authority
- CN
- China
- Prior art keywords
- ball
- spherical surface
- socket
- bulb
- steel ball
- 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.)
- Active
Links
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
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
-
- 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
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
-
- 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
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22303—Details of ball cages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a kind of flexural pivot transmission shafts, belong to the transmission shaft of machinery industry transmission system.The structure that it solves prior art Cardon universal joint transmission shaft is not compact enough, sealing is poor, be prone to wear out, bearing capacity is low, is easy to the defect and ball cage type/curved grooved type transmission shaft structure complexity, the drawback that manufacturing technology level requires high, steel ball and raceway contact area is small, contact stress is big of fatigue fracture.The present invention is by being arranged slideway in bulb outer surface and matching with the piston shoes of steel ball, to make be between steel ball and piston shoes be plane or curved face contact between sphere-contact, piston shoes and slideway, considerably increase the contact area between driving member, effectively reduce the pressure between each drive train pressure face, improve the service life of components, and it is located substantially on the stress shear surface of steel ball on the maximum gauge of steel ball, transmit the ability enhancing of torque.The present invention has structure simple, easily manufactured, the overall merit of large carrying capacity, high reliablity.
Description
Technical field
The invention belongs to the components of machinery industry transmission system more particularly to transmission shafts.
Background technique
The transmission shaft of the prior art mainly has three kinds of Cardon universal joint, ball cage type, curved grooved type structures, wherein Cardon universal joint structure
It is relatively easy, manufacture difficulty is low, application is the most universal, and structure is complicated for curved grooved type and ball cage type, manufacturing technology level require it is high,
The production technology of such product is concentrated mainly on foreign countries at present, and domestic production technology level is also difficult to meet wanting for product quality
It asks.Cardon universal joint is although structure is simple, and still have following deficiency: 1, structure is not compact enough；2, sealing is poor, is prone to wear out；
3, relative load bearing capacity is not big enough, and spider position is easy to fatigue fracture under case of heavy load；And curved grooved type and ball cage type structure mistake
In complexity, the contact area of steel ball and raceway is smaller in transmission process, and contact pressure is high, exacerbates the abrasion of part, and work
The shear surface of shearing force suffered by steel ball is smaller in work, fails to give full play to part potentiality.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of flexural pivot transmission shaft, simple and compact for structure, manufacturers
Just, large carrying capacity can satisfy engineering goods to the high reliability request of transmission system components.
Realization that the present invention adopts the following technical solutions:
Scheme 1: a kind of flexural pivot transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, it is characterised in that: ball-and-socket
Ball-and-socket Spherical Surface S 1 is arranged in inner cavity, and end cap Spherical Surface S 2 is arranged in end cover lumen, and bulb Spherical Surface S 3 is arranged in bulb outer surface, and S1 and S2 have
Equal sphere diameter, S3 can be total to the centre of sphere with S1 and S2 and form spherical surface and be slidably matched.Ball-and-socket and end cap are solid by datum end face P fitting
Surely be assembled together and possess common main rovolving shaft W, main rovolving shaft W by the centre of sphere of S1 and S2 and vertical with datum end face P,
The centre of sphere of S1 and S2 is located on datum end face P, to make the centre of sphere of S1 and S2 be overlapped and be total to spherical surface, bulb, which is wrapped up, is assemblied in S1
In the spherical cavity surrounded with S2, it is overlapped bulb Spherical Surface S 3 with the centre of sphere of S1, S2.The opening diameter of the external port E-2 of end cap is less than
The sphere diameter of bulb Spherical Surface S 3, to guarantee between bulb Spherical Surface S 3 keeps spherical surface without departing from S1 and the S2 spherical cavity surrounded and therewith just
True slip cooperating relationship.It is fixed along 4 main rovolving shaft W circumferentially uniformly distributed indent steel balls to be additionally provided on the datum end face P of ball-and-socket
The centre of sphere of position spherical surface I R1, R1 are located on datum end face P and keep equidistant with the centre of sphere of S1, and the size of the distance is equal to or connects
The spherical radius of nearly S1.Accordingly, the 4 indent steel circumferentially uniformly distributed along main rovolving shaft W are also equipped on the datum end face P of end cap
II R2 of ball location sphere simultaneously corresponds cooperation, the R2 and R1 of corresponding cooperation with 4 I R1 of indent steel ball location sphere of ball-and-socket
It keeps being total to ball relation of plane with one heart, and surrounds equal or close to hemispherical cavity, which is wrapped in the ectosphere of steel ball F
On face and keep correct slip cooperating relationship between spherical surface.The centre of sphere and and ball that the secondary rotating shaft J of bulb H passes through bulb Spherical Surface S 3
The axis of head handle H-1 is overlapped, and is additionally provided with the 4 slideway Ls circumferentially uniformly distributed along secondary rotating shaft J in bulb Spherical Surface S 3, slideway is symmetrical
I M1 of face and II M2 of the slideway plane of symmetry is mutually perpendicular to and intersects at secondary rotating shaft J, and I M1 of the slideway plane of symmetry divides it along slideway longitudinal direction
In 2 slideways and the plane of symmetry as another 2 slideways simultaneously；Accordingly, II M2 of the slideway plane of symmetry then divides along slideway longitudinal direction
Another 2 slideways therein and the simultaneously plane of symmetry as remaining 2 slideway.Piston shoes G is 4, respectively corresponds and is slidably fitted in 4
In the groove of slideway L, piston shoes bottom surface G-2 is slidably matched with slideway bottom surface L-1, and piston shoes side G-3 and slideway side L-2 sliding is matched
It closes, and piston shoes top surface G-1 and ball-and-socket Spherical Surface S 1 and end cap Spherical Surface S 2 cooperate.Steel ball positioning ball is additionally provided on the G-1 of piston shoes top surface
III R3 of face, III R3 of steel ball location sphere can be encircled into one with corresponding I R1 of steel ball location sphere and II R2 of steel ball location sphere
On the spherical outside surface of steel ball F, steel ball F can be freely rotated in the spherical cavity for spherical cavity package cooperation.When ball-and-socket, bulb, bulb handle, end
Lid, steel ball and piston shoes are assembled as described above after relationship is assembled together, and steel ball F has just been limited in I R1 of steel ball location sphere and steel
In II R2 of ball location sphere, and piston shoes G is then limited between ball-and-socket Spherical Surface S 1 and slideway bottom surface and simultaneously by slideway side and
The constraint of steel ball F, bulb and bulb handle can be swung relative to ball-and-socket, so as to return the pair of main rovolving shaft W and bulb H of ball-and-socket
Angle is generated between shaft J.After the power interface of ball-and-socket and machine links together, ball-and-socket is just under the driving of power interface
Rotation, and piston shoes G is transmitted torque to by steel ball F, piston shoes G transmits torque to bulb and bulb handle further through slideway L, from
And bulb and bulb handle is driven to rotate, and further dynamic to the next stage transmission parts transmitting connecting with bulb handle by bulb handle
Power, to realize the purpose of flexural pivot transmission of the present invention.
Further, piston shoes oilhole Q can be set on piston shoes G to penetrate through III R3 of steel ball location sphere and piston shoes bottom surface G-
2。
It further, can be on the outer surface of piston shoes G and/or on the ramp surface of slideway L along the longitudinally disposed lubrication of slideway
Oil groove, the lubrication so that promotion is respectively slidably matched between pair facilitate the flowing of lubricating oil and are evenly distributed with.
Further, can be arranged in the cavity of the sensible slideway L of oil leab on bulb and/or ball-and-socket, end cap, with convenient
Daily lubricating maintenance.
Further, telescopic sealing shroud I is further fixedly arranged between end cap E and bulb handle H-1, so that inside be passed
Dynamic component seal protection is got up, and lubricating oil loss and dust pollution are prevented.
Scheme 2: according to actual needs, scheme 1 can suitably be changed.Under severe duty, in order to further increase
Transmit torque, I R1 of steel ball location sphere in scheme 1, II R2 of steel ball location sphere, slideway L, piston shoes G and steel ball F quantity can be with
Increase to 4 or more；Under light duty, can also it reduce to 4 or less.I R1 of steel ball location sphere and steel ball location sphere II
R2 is circumferentially uniformly distributed along main rovolving shaft W, and keeps the spherical radius that S1 or S2 is equal or close to the centre of sphere of S1 or S2 distance；Pairing
The centre of sphere of II R2 of I R1 of steel ball location sphere and steel ball location sphere used is overlapped and is located on datum end face P, and surrounds and be equal to
Or close to hemispherical cavity, which is wrapped on the spherical outside surface of steel ball F and keeps correctly being slidably matched between spherical surface
Relationship.Accordingly, slideway L is disposed longitudinally in bulb Spherical Surface S 3 and is circumferentially evenly distributed with along secondary rotating shaft J, and every slideway L all has
The plane of symmetry, the plane of symmetry pass through the centre of sphere of secondary rotating shaft J and S3, and piston shoes G is slidably matched and with slideway L and steel ball F by it simultaneously
Constraint.
Scheme 3: in order to simplify structure, the piston shoes of scheme 1 and scheme 2 can remove, and accordingly adjust the cross section of slideway L
Shape is allowed to directly match the movement for merging constraint steel ball F with the spherical surface of steel ball F.
Compared with prior art, it the beneficial effects of the present invention are: 1, structure is simple, compact, is easy to make；2, steel ball F
Stress shear surface is located substantially on the maximum gauge of steel ball, and transmitting torque is big；It 3, is sphere-contact between steel ball and piston shoes, it is sliding
It is plane or curved face contact between boots and slideway, contact area greatly increases, and effectively reduces the pressure between each drive train pressure face
By force, transmission capacity is increased, part life is improved.
Detailed description of the invention:
Fig. 1 is a kind of main view of flexural pivot transmission shaft of the present invention, and the type of attachment of ball-and-socket and power interface is band card key method
Blue formula, bulb are an integral structure with bulb handle, and main rovolving shaft W is conllinear with pair rotating shaft J.
Fig. 2-5 is A-A, B-B cross-sectional view of Fig. 1, respectively shows the structure type of 4 kinds of slideways and piston shoes, be 4 slideways and
4 piston shoes structure types.
Fig. 6 is A-A, B-B cross-sectional view of Fig. 1, is the topology example of 6 slideways and 6 piston shoes.
Fig. 7 is A-A, B-B cross-sectional view of Fig. 1, is 8 slideways and the topology example without piston shoes.
Fig. 8 is the partial view of A-A, B-B cross-sectional view of Fig. 1, illustrates several distressed structures of steel ball F -- roller F1's
Assembling schematic diagram.
Fig. 9 is the V of Fig. 2 piston shoes G to enlarged view.
Figure 10 is the Z-direction enlarged view of Fig. 2 piston shoes G.
Figure 11 is the distressed structure of Fig. 1, and the type of attachment of ball-and-socket and power interface is spline.
Figure 12 is the distressed structure of Fig. 1, is seperated fabricated construction between bulb and bulb handle.
Figure 13 is the connection schematic diagram that 2 flexural pivot transmission shaft combinations of pairs use together.
In figure, C, power interface；C-1, centering face；D, ball-and-socket；D-1, ball-and-socket flange；D-2, ball-and-socket interface；E, end cap；
E-1, cover flange；E-2, external port；F, steel ball；F1, roller；F2, bearing；G, piston shoes；G-1, piston shoes top surface；G-2, piston shoes bottom
Face；G-3, piston shoes side；H, bulb；H-1, bulb handle；I, sealing shroud；J, secondary rotating shaft；K, piston shoes oil groove；L, slideway；L-1,
Slideway bottom surface；L-2, slideway side；M1, the slideway plane of symmetry I；M2, the slideway plane of symmetry II；N, oil leab；U, slideway oil groove；P,
Datum end face；Q, piston shoes oilhole；R1, steel ball location sphere I；R2, steel ball location sphere II；R3, steel ball location sphere III；S1,
Ball-and-socket spherical surface；S2, end cap spherical surface；S3, bulb spherical surface；T1, keyway；T2, driving key；W, main rovolving shaft；X, gasket；Y, retaining ring.
Specific embodiment:
The present invention will be further explained below with reference to the attached drawings
Embodiment 1:
As shown in Figure 1, a kind of flexural pivot transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, the inner cavity of ball-and-socket are set
End cap Spherical Surface S 2 is arranged in Place nest Spherical Surface S 1, end cover lumen, and bulb Spherical Surface S 3 is arranged in bulb outer surface, and S1 and S2 have equal
Sphere diameter, S3 can be total to the centre of sphere with S1 and S2 and form spherical surface and be slidably matched.Ball-and-socket and end cap pass through datum end face P fitting fixing assembling
Together and possess common main rovolving shaft W, the centre of sphere and with datum end face P vertical, S1 and S2 of the main rovolving shaft W by S1 and S2
The centre of sphere be located on datum end face P, to make the centre of sphere of S1 and S2 be overlapped and be total to spherical surface, bulb, which is wrapped up, is assemblied in S1 and S2 encloses
At spherical cavity in, be overlapped bulb Spherical Surface S 3 with the centre of sphere of S1, S2.The opening diameter of the external port E-2 of end cap is less than bulb ball
The sphere diameter of face S3, to guarantee that bulb Spherical Surface S 3 keeps correctly sliding between spherical surface without departing from S1 and the S2 spherical cavity surrounded and therewith
Dynamic matching relationship.The 4 indent steel ball location spheres I circumferentially uniformly distributed along main rovolving shaft W are additionally provided on the datum end face P of ball-and-socket
The centre of sphere of R1, R1 are located on datum end face P and keep equidistant with the centre of sphere of S1, and the size of the distance is equal or close to the ball of S1
Radius surface.Accordingly, it is also equipped on the datum end face P of end cap and positions ball along 4 main rovolving shaft W circumferentially uniformly distributed indent steel balls
II R2 of face simultaneously corresponds cooperation with 4 I R1 of indent steel ball location sphere of ball-and-socket, and the R2 and R1 of corresponding cooperation keep concentric
Ball relation of plane altogether, and surround equal or close to hemispherical cavity, which is wrapped on the spherical outside surface of steel ball F and protects
Correct slip cooperating relationship between holding face.The secondary rotating shaft J of bulb H by the centre of sphere of bulb Spherical Surface S 3 and with bulb handle H-1
Axis be overlapped, be additionally provided with the 4 slideway Ls circumferentially uniformly distributed along secondary rotating shaft J in bulb Spherical Surface S 3, I M1 of the slideway plane of symmetry and
II M2 of the slideway plane of symmetry is mutually perpendicular to and intersects at secondary rotating shaft J, and I M1 of the slideway plane of symmetry divides 2 therein along slideway longitudinal direction
Slideway and the simultaneously plane of symmetry as another 2 slideways；Accordingly, II M2 of the slideway plane of symmetry then divides along slideway longitudinal direction therein another
2 slideways and the simultaneously plane of symmetry as remaining 2 slideway.Piston shoes G is 4, respectively corresponds and is slidably fitted in 4 slideway L's
In groove, piston shoes bottom surface G-2 is slidably matched with slideway bottom surface L-1, and piston shoes side G-3 is slidably matched with slideway side L-2, and slides
Boots top surface G-1 and ball-and-socket Spherical Surface S 1 and end cap Spherical Surface S 2 cooperate.III R3 of steel ball location sphere is additionally provided on the G-1 of piston shoes top surface,
III R3 of steel ball location sphere can be encircled into a spherical cavity with corresponding I R1 of steel ball location sphere and II R2 of steel ball location sphere and wrap up
On the spherical outside surface of steel ball F, steel ball F can be freely rotated in the spherical cavity for cooperation.When ball-and-socket, bulb, bulb handle, end cap, steel ball
It is assembled as described above after relationship is assembled together with piston shoes, steel ball F has just been limited in I R1 of steel ball location sphere and steel ball positioning ball
In II R2 of face, and piston shoes G is then limited between ball-and-socket Spherical Surface S 1 and slideway bottom surface simultaneously simultaneously by the pact of slideway side and steel ball F
Beam, bulb and bulb handle can be swung relative to ball-and-socket, to make to produce between the secondary rotating shaft J of the main rovolving shaft W and bulb H of ball-and-socket
Raw angle.
Be respectively arranged with the ball-and-socket flange and cover flange coaxial with main rovolving shaft W on ball-and-socket and end cap, ball-and-socket flange and
It is additionally provided with keyway T1 on cover flange, centering face C-1 is set on power interface C, is provided with driving key T2 on the face C-1 that feels relieved,
C-1 package in centering face is assemblied in the outer surface of ball-and-socket flange and cover flange and keeps with one heart, while driving key T2 being made to be stuck in ball
To transmit torque in the keyway T1 of nest flange and cover flange, bolt passes through ball-and-socket flange and cover flange and power interface C is solid
It is scheduled on together, guarantees that ball-and-socket and end cap are rotated synchronously with power interface C, and pass through steel ball F, piston shoes G and slideway L for torque transfer
Pass through the connection spline that its outer end is arranged again to bulb handle H-1, bulb handle H-1 and transmits torque to next stage driving member.
As shown in Figure 2-5,4 kinds of preferred slideway cross-sectional shapes and piston shoes cross section with matching are respectively shown
Shape.The slideway cross-sectional shape of Fig. 2 is substantially rectangular；The slideway cross-sectional shape of Fig. 3 is substantially trapezoidal shape, and trapezoidal bottom edge is
Convex circular arc；The slideway cross-sectional shape of Fig. 4 is arc-shaped；The slideway cross-sectional shape of Fig. 5 is generally V-shape, the bottom of V-arrangement
For recessed circular arc；Correspondingly, piston shoes bottom surface is corresponding with above-mentioned slideway with the cross-sectional shape of piston shoes side, and piston shoes top surface
Shape is spherical and matches with ball-and-socket Spherical Surface S 1 and end cap Spherical Surface S 2.The longitudinal section shape of slideway bottom surface and piston shoes bottom surface is such as
It is the circular arc concentric with bulb Spherical Surface S 3 shown in Fig. 1.
As shown in figs. 1-7, the piston shoes oil groove K on several perforation surfaces, steel are vertically arranged on the outer surface of piston shoes G along slideway
III R3 of ball location sphere and piston shoes bottom surface G-2 is penetrated through by piston shoes oilhole Q, is longitudinally set on the slideway bottom surface L-1 of slideway L along slideway
It is equipped with slideway oil groove U, piston shoes oilhole Q and slideway oil groove the U perforation of perforation slideway bottom surface.As shown in Figure 1, bulb and bulb handle are
Integral structure, is internally provided with oil leab N, and lubricating oil can be transported in the cavity of slideway L by oil leab N.
Telescopic sealing shroud I is further fixedly arranged between end cap E and bulb handle H-1, so that internal transmission part is close
Envelope protects, and prevents lubricating oil loss and dust pollution.
Embodiment 2:
As shown in fig. 6, embodiment 2 is the deformation of embodiment 1, and the difference is that: the configuration quantity of slideway and piston shoes is by 4
To increasing to 6 pairs, remaining structure is similar, is not repeated herein.The configuration quantity of slideway and piston shoes can according to actual needs really
It is fixed.
Embodiment 3:
As shown in fig. 7, embodiment 3 is the deformation of embodiment 1 and embodiment 2, and the difference is that: the present embodiment eliminates
Piston shoes, and the cross-sectional shape for accordingly adjusting slideway L is as shown in Figure 4 arc-shaped, and being allowed to can be direct with the spherical surface of steel ball F
Cooperation constrains the movement of steel ball F.Remaining structure is similar, is not repeated herein.Fig. 7 show the topology example of 8 slideways, can be with
Change slideway quantity according to actual needs.
Embodiment 4:
As shown in figure 8, embodiment 4 is the deformation of above-described embodiment 1-3, and the difference is that: the present embodiment roller F1
Replacing steel ball F, roller F1 can be cylindrical body, or by one end of itself and slideway or piston shoes cooperation be arranged to spherical, cone or
Bearing F2 can be arranged on roller F1 also in favor of the rotation of roller F1 in other suitable shape.The roller F1's that Fig. 8 is illustrated
Assembling schematic diagram and the adaptive change for cooperating components with it, remaining structure is similar with embodiment 1-3, is not repeated herein.
Embodiment 5:
As shown in figure 11, embodiment 5 is the deformation of embodiment 1-4, compared with corresponding embodiment, the difference is that:
Connection type between ball-and-socket D and power interface C is different, and ball-and-socket D is provided with the ball-and-socket interface D-2 coaxial with main rovolving shaft W, ball
The structure of socket and spigot joint mouth D-2 can be the spline housing with internal spline or the splined shaft with external splines, and correspondingly, power interface C correspondence is set
The splined shaft with external splines or the spline housing with internal spline are set, connection transmitting power is reached by the cooperation of splined shaft and spline housing
Purpose.The connection of above-mentioned spline also can equivalent substitution be singly linked mode, can also be changed to the mode of flanged joint.
Embodiment 6:
As shown in figure 12, embodiment 6 is the deformation of embodiment 1-4, compared with corresponding embodiment, the difference is that:
Seperated fabricated construction is changed to by integral structure between bulb and bulb handle, bulb is provided centrally with same with secondary rotating shaft J
The splined hole of axis and with the spline axis connection that is correspondingly arranged at bulb handle one end, by the way that gasket X and retaining ring Y is arranged in spline one end
Bulb is fixed between gasket X and the step surface of the spline other end.Remaining structure is same as Example 1, is not repeated herein.
Embodiment 7:
As shown in figure 13, the flexural pivot of above-described embodiment can match use, and centre is slidably connected by key, with compensation transmission away from
From upper variation, transmission principle is identical as single flexural pivot, is not repeated herein.
It should be pointed out that the above is only the preferable specific embodiments of the present invention, but protection scope of the present invention is not
It is confined to this.It is clear that according to actual needs, many variations can also be made, and such as: ball-and-socket interface D-2 formal change
Change, the variation of ball-and-socket and end cap type of attachment, bulb and variation, slideway and piston shoes cross sectional shape in bulb handle type of attachment,
Variation, oil groove shape, variation of quantity of quantity etc..Anyone skilled in the art the invention discloses technology model
In enclosing, schematic diagram, embodiment and its inventive concept according to the present invention are subject to equivalent substitution or change, should all cover in this hair
Within bright protection scope.
Claims (11)
1. a kind of flexural pivot transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, it is characterised in that: the inner cavity of ball-and-socket is arranged
End cap spherical surface (S2) is arranged in ball-and-socket spherical surface (S1), end cover lumen, and bulb spherical surface (S3) is arranged in bulb outer surface, ball-and-socket spherical surface (S1)
There is equal sphere diameter with end cap spherical surface (S2), bulb spherical surface (S3) can be total to the centre of sphere with ball-and-socket spherical surface (S1) and end cap spherical surface (S2)
And it forms spherical surface and is slidably matched；Ball-and-socket is together with end cap is by datum end face (P) fitting fixing assembling and possesses common master
Rotating shaft (W), main rovolving shaft (W) by the centre of sphere of ball-and-socket spherical surface (S1) and end cap spherical surface (S2) and vertical with datum end face (P),
The centre of sphere of ball-and-socket spherical surface (S1) and end cap spherical surface (S2) is located on datum end face (P), to make ball-and-socket spherical surface (S1) and end cap ball
The centre of sphere in face (S2) is overlapped and makes ball-and-socket spherical surface (S1) and end cap spherical surface (S2) to be total to spherical surface, and bulb, which is wrapped up, is assemblied in ball-and-socket spherical surface
(S1) and in the spherical cavity that surrounds of end cap spherical surface (S2), make the ball of bulb spherical surface (S3) Yu ball-and-socket spherical surface (S1) and end cap spherical surface (S2)
The heart is overlapped；The opening diameter of the external port (E-2) of end cap is less than the sphere diameter of bulb spherical surface (S3), to guarantee bulb spherical surface (S3)
The spherical cavity surrounded without departing from ball-and-socket spherical surface (S1) and end cap spherical surface (S2) and the pass that is correctly slidably matched between holding spherical surface therewith
System；At least one indent steel ball location sphere I circumferentially uniformly distributed along main rovolving shaft (W) is additionally provided on the datum end face (P) of ball-and-socket
(R1), the centre of sphere of steel ball location sphere I (R1) is located on datum end face (P) and keeps equidistant with the centre of sphere of ball-and-socket spherical surface (S1)
From the size of the distance is equal or close to the spherical radius of ball-and-socket spherical surface (S1)；With above-mentioned steel ball location sphere I (R1) phase
Match, accordingly, it is fixed along the circumferentially uniformly distributed at least one indent steel ball of main rovolving shaft (W) to be also equipped on the datum end face (P) of end cap
Position spherical surface II (R2) and indent steel ball location sphere I (R1) corresponding matching with ball-and-socket, the steel ball location sphere of corresponding cooperation
II (R2) and steel ball location sphere I (R1) keep with one heart ball relation of plane altogether, and surround equal or close to hemispherical cavity, should
Cavity spherical surface is wrapped on the spherical outside surface of corresponding steel ball (F) and keeps correct slip cooperating relationship between spherical surface；Bulb (H)
Secondary rotating shaft (J) passes through the centre of sphere of bulb spherical surface (S3) and is overlapped with the axis of bulb handle (H-1), also sets on bulb spherical surface (S3)
It is equipped at least 1 slideway (L) circumferentially uniformly distributed around secondary rotating shaft (J), thus with above-mentioned steel ball location sphere I (R1) and steel ball
Location sphere II (R2) matches；Every slideway (L) all has the plane of symmetry, which passes through secondary rotating shaft (J) and bulb ball
The centre of sphere in face (S3)；Match with slideway (L), can be set piston shoes (G), the corresponding ditch for being slidably fitted in slideway (L) of piston shoes (G)
In slot, piston shoes bottom surface (G-2) is slidably matched with slideway bottom surface (L-1), and piston shoes side (G-3) matches with slideway side (L-2) sliding
It closes, and piston shoes top surface (G-1) and ball-and-socket spherical surface (S1) and end cap spherical surface (S2) cooperate；Steel is additionally provided on piston shoes top surface (G-1)
Ball location sphere III (R3), steel ball location sphere III (R3) and corresponding steel ball location sphere I (R1) and steel ball location sphere II
(R2) a spherical cavity package cooperation can be encircled on the spherical outside surface of steel ball (F), steel ball (F) can be freely rotated in the spherical cavity；
After ball-and-socket, bulb, bulb handle, end cap, steel ball and piston shoes, which are assembled as described above relationship, to be assembled together, steel ball (F) is just limited
In steel ball location sphere I (R1) and steel ball location sphere II (R2), and piston shoes (G) be then limited in ball-and-socket spherical surface (S1) and
Between slideway bottom surface (L-1) and simultaneously by the constraint of slideway side and steel ball (F)；Bulb and bulb handle can be put relative to ball-and-socket
It is dynamic, so as to make to generate angle between the main rovolving shaft (W) of ball-and-socket and the secondary rotating shaft (J) of bulb (H)；When ball-and-socket and machine
After power interface links together, ball-and-socket just being rotated by power interface, and cunning is transmitted torque to by steel ball (F)
Boots (G), piston shoes (G) transmit torque to bulb and bulb handle further through slideway (L), so that bulb and bulb handle is driven to rotate,
And power is further transmitted to the next stage transmission parts connecting with bulb handle by bulb handle.
2. a kind of flexural pivot transmission shaft according to claim 1, it is characterised in that: can be set on bulb and/or ball-and-socket, end cap
In the cavity for setting the sensible slideway of oil leab (L), to facilitate daily lubricating maintenance；Piston shoes oilhole can be set on piston shoes (G)
(Q) to penetrate through steel ball location sphere III (R3) and piston shoes bottom surface (G-2)；It can be on the outer surface of piston shoes (G) and/or slideway
(L) lubrication along the longitudinally disposed oil-way of slideway on ramp surface, so that promotion is respectively slidably matched between pair.
3. a kind of flexural pivot transmission shaft according to claim 1, it is characterised in that: the cross-sectional shape of bulb slideway can be circle
Arc is substantially rectangular；Or it is substantially trapezoidal shape, trapezoidal bottom edge is convex circular arc；Or substantially (V) shape, the bottom of (V) shape
Side is recessed circular arc；Correspondingly, piston shoes bottom surface is corresponding with above-mentioned slideway with the cross-sectional shape of piston shoes side, and piston shoes top surface
Shape be spherical and matched with ball-and-socket spherical surface (S1) and end cap spherical surface (S2)；The longitudinal cross-section of slideway bottom surface and piston shoes bottom surface
Shape is the circular arc concentric with bulb spherical surface (S3).
4. a kind of flexural pivot transmission shaft according to claim 1, it is characterised in that: be seperated assembly between bulb and bulb handle
Formula structure, bulb be provided centrally with the splined hole coaxial with secondary rotating shaft (J) and with the spline that is correspondingly arranged at bulb handle one end
Axis connection.
5. a kind of flexural pivot transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, it is characterised in that: the inner cavity of ball-and-socket is arranged
End cap spherical surface (S2) is arranged in ball-and-socket spherical surface (S1), end cover lumen, and bulb spherical surface (S3) is arranged in bulb outer surface, ball-and-socket spherical surface (S1)
There is equal sphere diameter with end cap spherical surface (S2), bulb spherical surface (S3) can be total to the centre of sphere with ball-and-socket spherical surface (S1) and end cap spherical surface (S2)
And it forms spherical surface and is slidably matched；Ball-and-socket is together with end cap is by datum end face (P) fitting fixing assembling and possesses common master
Rotating shaft (W), main rovolving shaft (W) by the centre of sphere of ball-and-socket spherical surface (S1) and end cap spherical surface (S2) and vertical with datum end face (P),
The centre of sphere of ball-and-socket spherical surface (S1) and end cap spherical surface (S2) is located on datum end face (P), to make ball-and-socket spherical surface (S1) and end cap ball
The centre of sphere in face (S2) is overlapped and makes ball-and-socket spherical surface (S1) and end cap spherical surface (S2) to be total to spherical surface, and bulb, which is wrapped up, is assemblied in ball-and-socket spherical surface
(S1) and in the spherical cavity that surrounds of end cap spherical surface (S2), make the ball of bulb spherical surface (S3) Yu ball-and-socket spherical surface (S1) and end cap spherical surface (S2)
The heart is overlapped；The opening diameter of the external port (E-2) of end cap is less than the sphere diameter of bulb spherical surface (S3), to guarantee bulb spherical surface (S3)
The spherical cavity surrounded without departing from ball-and-socket spherical surface (S1) and end cap spherical surface (S2) and the pass that is correctly slidably matched between holding spherical surface therewith
System；At least one indent steel ball location sphere I circumferentially uniformly distributed along main rovolving shaft (W) is additionally provided on the datum end face (P) of ball-and-socket
(R1), the centre of sphere of steel ball location sphere I (R1) is located on datum end face (P) and keeps equidistant with the centre of sphere of ball-and-socket spherical surface (S1)
From the size of the distance is equal or close to the spherical radius of ball-and-socket spherical surface (S1)；With above-mentioned steel ball location sphere I (R1) phase
Match, accordingly, it is fixed along the circumferentially uniformly distributed at least one indent steel ball of main rovolving shaft (W) to be also equipped on the datum end face (P) of end cap
Position spherical surface II (R2) and indent steel ball location sphere I (R1) corresponding matching with ball-and-socket, the steel ball location sphere of corresponding cooperation
II (R2) and steel ball location sphere I (R1) keep with one heart ball relation of plane altogether, and surround equal or close to hemispherical cavity, should
Cavity spherical surface is wrapped on the spherical outside surface of corresponding steel ball (F) and keeps correct slip cooperating relationship between spherical surface；Bulb (H)
Secondary rotating shaft (J) passes through the centre of sphere of bulb spherical surface (S3) and is overlapped with the axis of bulb handle (H-1), also sets on bulb spherical surface (S3)
It is equipped at least 1 slideway (L) circumferentially uniformly distributed around secondary rotating shaft (J), thus with above-mentioned steel ball location sphere I (R1) and steel ball
Location sphere II (R2) matches；Every slideway (L) all has the plane of symmetry, which passes through secondary rotating shaft (J) and bulb ball
The centre of sphere in face (S3)；Match with slideway (L), can be set piston shoes (G), the corresponding ditch for being slidably fitted in slideway (L) of piston shoes (G)
In slot, piston shoes bottom surface (G-2) is slidably matched with slideway bottom surface (L-1), and piston shoes side (G-3) matches with slideway side (L-2) sliding
It closes, and piston shoes top surface (G-1) and ball-and-socket spherical surface (S1) and end cap spherical surface (S2) cooperate；Steel is additionally provided on piston shoes top surface (G-1)
Ball location sphere III (R3), steel ball location sphere III (R3) and corresponding steel ball location sphere I (R1) and steel ball location sphere II
(R2) a spherical cavity package cooperation can be encircled on the spherical outside surface of steel ball (F), steel ball (F) can be freely rotated in the spherical cavity；
After ball-and-socket, bulb, bulb handle, end cap, steel ball and piston shoes, which are assembled as described above relationship, to be assembled together, steel ball (F) is just limited
In steel ball location sphere I (R1) and steel ball location sphere II (R2), and piston shoes (G) be then limited in ball-and-socket spherical surface (S1) and
Between slideway bottom surface (L-1) and simultaneously by the constraint of slideway side and steel ball (F)；Bulb and bulb handle can be put relative to ball-and-socket
It is dynamic, so as to make to generate angle between the main rovolving shaft (W) of ball-and-socket and the secondary rotating shaft (J) of bulb (H)；When ball-and-socket and machine
After power interface links together, ball-and-socket just being rotated by power interface, and by steel ball (F) directly by torque transfer
Slideway (L) is given, so that bulb and bulb handle be driven to rotate, and is further passed by bulb handle to the next stage being connect with bulb handle
Dynamic component transmits power.
6. a kind of flexural pivot transmission shaft according to claim 1 or 2, it is characterised in that: end cap (E) and bulb handle (H-1) it
Between be further fixedly arranged on telescopic sealing shroud (I) and prevent lubricating oil to be lost so that internal transmission part seal protection be got up
And dust pollution.
7. a kind of flexural pivot transmission shaft according to claim 1 or 2, it is characterised in that: be respectively arranged on ball-and-socket and end cap
The ball-and-socket flange and cover flange coaxial with main rovolving shaft (W) is additionally provided with keyway (T1) on ball-and-socket flange and cover flange, moves
Centering face (C-1) is set on power interface (C), is provided with driving key (T2) in centering face (C-1), centering face (C-1) package assembly
It in the outer surface of ball-and-socket flange and cover flange and keeps with one heart, while driving key (T2) being made to be stuck in ball-and-socket flange and cover flange
Keyway (T1) in transmit torque, bolt passes through ball-and-socket flange and cover flange is fixed together with power interface (C), guarantee
Ball-and-socket and end cap are rotated synchronously with power interface (C).
8. a kind of flexural pivot transmission shaft according to claim 1 or 2, it is characterised in that: ball-and-socket (D) is provided with and main rovolving shaft
(W) coaxial ball-and-socket interface (D-2), the structure of ball-and-socket interface (D-2) can be the spline housing with internal spline or the flower with external splines
Key axis, correspondingly, power interface (C) are correspondingly arranged the splined shaft with external splines or the spline housing with internal spline, pass through splined shaft
Achieve the purpose that connect transmitting power with the cooperation of spline housing；The connection of above-mentioned spline can also equivalent substitution be singly linked side
Formula, or it is changed to the mode of flanged joint.
9. according to claim 1 or a kind of 2 any flexural pivot transmission shafts, it is characterised in that: the steel ball (F) can use rolling
Column (F1) replaces, and roller (F1) can be cylindrical body, or its one end cooperated with slideway or piston shoes is arranged to spherical or circular cone
To cooperate with slideway or piston shoes bearing (F2) can be arranged on roller (F1) also in favor of the rotation of roller (F1) in shape.
10. a kind of flexural pivot transmission shaft according to claim 9, it is characterised in that: the flexural pivot can match use, and centre is logical
Key is crossed to be slidably connected.
11. a kind of flexural pivot transmission shaft according to claim 1 or 2, it is characterised in that: the flexural pivot can match use, in
Between be slidably connected by key.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016206173545 | 2016-06-22 | ||
| CN201620617354 | 2016-06-22 | ||
| CN201610452824 | 2016-06-22 | ||
| CN2016104528241 | 2016-06-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927674A CN105927674A (en) | 2016-09-07 |
| CN105927674B true CN105927674B (en) | 2019-01-25 |
Family
ID=56827981
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620741677.5U Withdrawn - After Issue CN205918785U (en) | 2016-06-22 | 2016-07-15 | Ball pivot transmission shaft |
| CN201610554161.4A Active CN105927674B (en) | 2016-06-22 | 2016-07-15 | A kind of flexural pivot transmission shaft |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620741677.5U Withdrawn - After Issue CN205918785U (en) | 2016-06-22 | 2016-07-15 | Ball pivot transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN205918785U (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205918785U (en) * | 2016-06-22 | 2017-02-01 | 朱德伟 | Ball pivot transmission shaft |
| CN107725624A (en) * | 2017-09-30 | 2018-02-23 | 安徽江淮汽车集团股份有限公司 | A kind of constant velocity cardan joint transmission shaft |
| EP3812588B8 (en) | 2018-08-06 | 2022-10-26 | Qingdao Acme Innovation Technology Co., Ltd. | Piston pump and piston motor |
| CN110439194B (en) * | 2019-07-22 | 2021-10-08 | 上海秦森园林股份有限公司 | Mounting structure and mounting method of wood rafters of antique building |
| CN111927937B (en) * | 2020-08-12 | 2023-02-17 | 内蒙古第一机械集团股份有限公司 | Ball cage type transmission structure with escape and extension function |
| CN112077510B (en) * | 2020-08-21 | 2022-03-25 | 上海航天精密机械研究所 | Laser welding and welding following pressing device and method with coaxial protection function |
| CN113074300B (en) * | 2021-03-29 | 2023-02-14 | 郑维洁 | Action structure around ball center |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU941733A1 (en) * | 1980-04-22 | 1982-07-07 | Всесоюзный Научно-Исследовательский И Проектный Институт "Теплопроект" | Gear-type coupling |
| CN2259525Y (en) * | 1995-10-26 | 1997-08-13 | 武汉钢铁(集团)公司 | Ball universal joint transmission shaft |
| CN2382889Y (en) * | 1998-11-05 | 2000-06-14 | 杨佩兰 | Ball hinged T shape pin universal coupling |
| CN2413083Y (en) * | 2000-01-04 | 2001-01-03 | 张公福 | Ball hinged universal joint |
| BR0303240A (en) * | 2003-08-05 | 2005-08-30 | Dana Industrial Ltda | Spherical junction box relief channel |
| CN201007323Y (en) * | 2007-02-07 | 2008-01-16 | 戴光荣 | Ball hinged synchronous universal coupling |
| CN201475187U (en) * | 2009-09-01 | 2010-05-19 | 江汉石油钻头股份有限公司 | Sealed universal shaft |
| CN201925362U (en) * | 2010-12-27 | 2011-08-10 | 沈阳三洋球罐有限公司 | Spherical hinge type angle-adjustable transmission coupling |
| CN205918785U (en) * | 2016-06-22 | 2017-02-01 | 朱德伟 | Ball pivot transmission shaft |
-
2016
- 2016-07-15 CN CN201620741677.5U patent/CN205918785U/en not_active Withdrawn - After Issue
- 2016-07-15 CN CN201610554161.4A patent/CN105927674B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU941733A1 (en) * | 1980-04-22 | 1982-07-07 | Всесоюзный Научно-Исследовательский И Проектный Институт "Теплопроект" | Gear-type coupling |
| CN2259525Y (en) * | 1995-10-26 | 1997-08-13 | 武汉钢铁(集团)公司 | Ball universal joint transmission shaft |
| CN2382889Y (en) * | 1998-11-05 | 2000-06-14 | 杨佩兰 | Ball hinged T shape pin universal coupling |
| CN2413083Y (en) * | 2000-01-04 | 2001-01-03 | 张公福 | Ball hinged universal joint |
| BR0303240A (en) * | 2003-08-05 | 2005-08-30 | Dana Industrial Ltda | Spherical junction box relief channel |
| CN201007323Y (en) * | 2007-02-07 | 2008-01-16 | 戴光荣 | Ball hinged synchronous universal coupling |
| CN201475187U (en) * | 2009-09-01 | 2010-05-19 | 江汉石油钻头股份有限公司 | Sealed universal shaft |
| CN201925362U (en) * | 2010-12-27 | 2011-08-10 | 沈阳三洋球罐有限公司 | Spherical hinge type angle-adjustable transmission coupling |
| CN205918785U (en) * | 2016-06-22 | 2017-02-01 | 朱德伟 | Ball pivot transmission shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927674A (en) | 2016-09-07 |
| CN205918785U (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105927674B (en) | A kind of flexural pivot transmission shaft | |
| CN101542145B (en) | Rolling bearing arrangement | |
| CN106969058A (en) | A kind of ball pivot power transmission shaft | |
| CN201232679Y (en) | Axial positioning and connecting device between suspension type speed reducer and shaft spline | |
| CN205937557U (en) | High -performance crown gear coupling | |
| CN1036943C (en) | coupling | |
| CN201751616U (en) | Universal joint with dustproof oil seal mechanism | |
| CN209586983U (en) | Crown gear coupling and gear train assembly with it | |
| CN211623990U (en) | High-performance long-life coupling of screw drilling tool | |
| CN209705116U (en) | A kind of safety coupling | |
| CN201110135Y (en) | Ball dental type versatile spindle for screw drill | |
| CN203979183U (en) | A kind of novel ball pivot drum coupling | |
| CN207333579U (en) | A kind of bevel gear housing | |
| WO2020133264A1 (en) | Drum gear | |
| KR101280791B1 (en) | spider assembly for tripod type constant velocity joint | |
| CN110107607A (en) | It is a kind of for transmitting the gear coupling of axial force | |
| CN201437824U (en) | Universal joint coupling for step-type steel plate stamping bearing | |
| CN201288768Y (en) | Big rotation moment, big inclination angle and slide block driving coupling | |
| CN219755158U (en) | Drum-shaped pin type coupling | |
| CN202023510U (en) | Prism cardan shaft | |
| CN101196216A (en) | Dental formula versatile spindle of positive displacement drill ball | |
| CN106958611B (en) | Arc tooth type coupling | |
| CN203770365U (en) | Half-shaft improved structure of driving shaft | |
| CN215596231U (en) | Spline coupler structure | |
| CN215058994U (en) | Coupling for transport roller way in metallurgical industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180607 Address after: 266000 A101-6, 5 Jiading Road, Shibei District, Qingdao, Shandong. Applicant after: Qingdao extreme Creative Technology Limited Address before: 266044 Baoli Lily Garden 12, Jinhua Branch Road, Shibei District, Qingdao, Shandong 20-1-801 Applicant before: Zhu Dewei |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |