CN105927674A - Spherical hinge transmission shaft - Google Patents
Spherical hinge transmission shaft Download PDFInfo
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- CN105927674A CN105927674A CN201610554161.4A CN201610554161A CN105927674A CN 105927674 A CN105927674 A CN 105927674A CN 201610554161 A CN201610554161 A CN 201610554161A CN 105927674 A CN105927674 A CN 105927674A
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- sphere
- ball
- socket
- bulb
- steel ball
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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
- 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
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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
- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a spherical hinge transmission shaft and belongs to a transmission shaft of a transmission system in machinery industry, aiming at overcoming the defects of a cross shaft type transmission shaft in the prior art that the structure is not compact enough, the sealing is poor, the shaft is easy to abrade, the bearing capability is low and fatigue break is easy to cause and the defects of a spherical cage type/spherical fork type transmission shaft that the structure is complicated, the requirements on levels of a manufacturing process are high, the contact area of a steel ball and a roller path is small, and the contact stress is great. A slide way is arranged on the outer surface of a spherical head and is matched with a slide shoe of the steel ball, so that contact between the steel ball and the slide shoe is spherical surface contact, and contact between the slide shoe and the slide way is plane or curved-surface contact, and a contact area between transmission parts is greatly enlarged; pressure between transmission pressure surfaces is effectively reduced, and the service life of parts is prolonged; a stress shearing surface of the steel ball is basically located on the maximum diameter of the steel ball, and a torque transmission capability is enhanced. The spherical hinge transmission shaft has the comprehensive advantages of simple structure, convenience for manufacturing, great bearing capability and high reliability.
Description
Technical field
The invention belongs to the parts of machinery industry drive system, particularly relate to power transmission shaft.
Background technology
The power transmission shaft of prior art mainly has Cardon universal joint, ball cage type, three kinds of structures of curved grooved type, wherein Cardon universal joint structure is relatively easy, manufacture difficulty is low, apply the most universal, and curved grooved type and ball cage type structure are complicated, manufacturing technology level requires height, the production technology of this series products is concentrated mainly on abroad at present, and domestic production technology level is also difficult to meet the requirement of product quality.Though Cardon universal joint simple in construction, still have the disadvantage that 1, structure the compactest；2, seal poor, it is easy to abrasion；3, relative load bearing capacity is big not, and under case of heavy load, spider position is prone to fatigue fracture；And curved grooved type and ball cage type structure are the most complicated, in transmission process, steel ball is less with the contact area of raceway, and contact pressure is high, exacerbates the shear surface of shearing force suffered by steel ball in the abrasion of part, and work less, fails to give full play to part potentiality.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of ball pivot power transmission shaft, simple and compact for structure, easily manufactured, bearing capacity is big, can meet the engineering goods high reliability request to drive system parts.
The present invention realizes by the following technical solutions:
Scheme 1: a kind of ball pivot power transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, it is characterized in that: the inner chamber of ball-and-socket arranges ball-and-socket Spherical Surface S 1, end cap inner chamber arranges end cap Spherical Surface S 2, bulb outer surface arranges bulb Spherical Surface S 3, S1 and S2 has equal sphere diameter, and S3 can be with S1 and the S2 altogether centre of sphere form sphere and be slidably matched.Ball-and-socket and end cap by datum end face P laminating be securely fitted in together with and have common main rovolving shaft W, main rovolving shaft W is by the centre of sphere of S1 with S2 vertical with datum end face P, the centre of sphere of S1 and S2 is positioned on datum end face P, so that the centre of sphere of S1 and S2 overlaps and is total to sphere, bulb is wrapped and is assemblied in the spherical cavity that S1 and S2 surrounds, and makes bulb Spherical Surface S 3 overlap with the centre of sphere of S1, S2.The opening diameter of external port E-2 of end cap is less than the sphere diameter of bulb Spherical Surface S 3, thus ensures spherical cavity that bulb Spherical Surface S 3 surrounds slip cooperating relationship correct between holding sphere therewith without departing from S1 and S2.It is additionally provided with the centre of sphere along main rovolving shaft W circumferential uniform 4 indents steel ball location sphere I R1, R1 on the datum end face P of ball-and-socket be positioned on datum end face P and keep equidistant with the centre of sphere of S1, the size of this distance spherical radius equal or close to S1.Accordingly, it is also equipped with on the datum end face P of end cap along main rovolving shaft W 4 uniform indent steel ball location sphere II R2 of circumference and coordinates with 4 indent steel ball location sphere I R1 one_to_one corresponding of ball-and-socket, R2 and R1 of corresponding cooperation keeps ball relation of plane the most altogether, and surrounding equal or close to hemispherical cavity, this cavity sphere is wrapped on the spherical outside surface of steel ball F and keeps slip cooperating relationship correct between sphere.The secondary gyroaxis J of bulb H by the centre of sphere of bulb Spherical Surface S 3 and with the dead in line of bulb handle H-1, it is additionally provided with along circumferential 4 the uniform slideway L of secondary gyroaxis J in bulb Spherical Surface S 3, the slideway plane of symmetry I M1 and the slideway plane of symmetry II M2 is mutually perpendicular to and intersects at secondary gyroaxis J, the slideway plane of symmetry I M1 point 2 slideways therein the plane of symmetry simultaneously as another 2 slideways along slideway longitudinal direction；Accordingly, the slideway plane of symmetry II M2 then point another 2 slideways therein the plane of symmetry simultaneously as remaining 2 slideway along slideway longitudinal direction.Piston shoes G is 4, and correspondence is slidably fitted in the groove of 4 slideway L respectively, and 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 piston shoes end face G-1 coordinates with ball-and-socket Spherical Surface S 1 and end cap Spherical Surface S 2.Steel ball location sphere III R3 it is additionally provided with on piston shoes end face G-1, steel ball location sphere III R3 and corresponding steel ball location sphere I R1 and steel ball location sphere II R2 can be encircled into a spherical cavity parcel and coordinate on the spherical outside surface of steel ball F, and steel ball F can be freely rotatable in this spherical cavity.When ball-and-socket, bulb, bulb handle, end cap, steel ball and piston shoes are assembled as described above after relation is assembled together, steel ball F has just been limited in steel ball location sphere I R1 and steel ball location sphere II R2, piston shoes G is then limited between ball-and-socket Spherical Surface S 1 and slideway bottom surface and is retrained by slideway side and steel ball F simultaneously, bulb and bulb handle can swing relative to ball-and-socket, thus can make to produce between the secondary gyroaxis J of the main rovolving shaft W and bulb H of ball-and-socket angle.After the power interface of ball-and-socket Yu machine links together, ball-and-socket just being rotated by power interface, and transmit torque to piston shoes G by steel ball F, piston shoes G transmits torque to bulb and bulb handle further through slideway L, thus drive bulb and bulb handle to rotate, and transmit power by bulb handle to the next stage drive disk assembly being connected with bulb handle further, thus realize the purpose of ball pivot transmission of the present invention.
Further, can piston shoes oilhole Q be set on piston shoes G thus through steel ball location sphere III R3 and piston shoes bottom surface G-2.
Further, along the longitudinally disposed oil-way of slideway on the outer surface of piston shoes G and/or on the ramp surface of slideway L, thus can promote respectively to be slidably matched the lubrication between pair, facilitate the flowing of lubricating oil and uniform.
Further, can arrange in the cavity of oil leab sensible slideway L on bulb and/or ball-and-socket, end cap, to facilitate daily lubricating maintenance.
Further, it is further fixedly arranged on telescopic sealing shroud I between end cap E and bulb handle H-1, thus internal transmission part is sealed and protects, prevent lubricating oil to run off and dust pollutes.
Scheme 2: according to actual needs, suitably can change scheme 1.Under severe duty, in order to strengthen transmission moment of torsion further, in scheme 1, the quantity of steel ball location sphere I R1, steel ball location sphere II R2, slideway L, piston shoes G and steel ball F can increase to more than 4；Under light duty, also can reduce to less than 4.Steel ball location sphere I R1 and steel ball location sphere II R2 is uniform along main rovolving shaft W circumference, and keeps the spherical radius equal or close to S1 or S2 of the centre of sphere distance with S1 or S2；Steel ball location sphere I R1 and the centre of sphere of steel ball location sphere II R2 that pairing uses overlap and are positioned on datum end face P, and surrounding equal or close to hemispherical cavity, this cavity sphere is wrapped on the spherical outside surface of steel ball F and keeps slip cooperating relationship correct between sphere.Accordingly, slideway L is disposed longitudinally in bulb Spherical Surface S 3 and uniform along secondary gyroaxis J circumference, and every slideway L is respectively provided with the plane of symmetry, and this plane of symmetry is slidably matched and constrained with slideway L and steel ball F by the centre of sphere of secondary gyroaxis J and S3, piston shoes G simultaneously.
Scheme 3: in order to simplify structure, the piston shoes of scheme 1 and scheme 2 can remove, and the shape of cross section adjusting slideway L accordingly is allowed to the sphere with steel ball F and directly coordinates and retrain the motion of steel ball F.
Compared with prior art, the invention has the beneficial effects as follows: 1, simple in construction, compact, make easily；2, the stress shear surface of steel ball F is located substantially on the maximum gauge of steel ball, and transmission moment of torsion is big；3, being sphere-contact between steel ball and piston shoes, be plane or curved face contact between piston shoes and slideway, contact area is greatly increased, and effectively reduces the pressure between each drive train pressure face, adds transmission capacity, improve part life.
Accompanying drawing illustrates:
Fig. 1 is the front view of the present invention a kind of ball pivot power transmission shaft, and ball-and-socket is band card key flange form with the type of attachment of power interface, and bulb and bulb handle are integral type structure, main rovolving shaft W and secondary gyroaxis J conllinear.
Fig. 2-5 is A-A, B-B sectional view of Fig. 1, respectively show 4 kinds of slideways and the version of piston shoes, is 4 slideways and 4 piston shoes versions.
Fig. 6 is A-A, B-B sectional view of Fig. 1, is 6 slideways and the topology example of 6 piston shoes.
Fig. 7 is A-A, B-B 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 sectional view of Fig. 1, illustrates several distressed structures of steel ball F--the assembling schematic diagram of roller F1.
Fig. 9 is that the V of Fig. 2 piston shoes G is to zoomed-in view.
Figure 10 is the Z-direction zoomed-in view of Fig. 2 piston shoes G.
Figure 11 is the distressed structure of Fig. 1, and ball-and-socket is spline with the type of attachment of power interface.
Figure 12 is the distressed structure of Fig. 1, for split fabricated construction between bulb and bulb handle.
Figure 13 is the connection diagram that 2 ball pivot power 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 end face；G-2, piston shoes bottom surface；G-3, piston shoes side；H, bulb；H-1, bulb handle；I, sealing shroud；J, secondary gyroaxis；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 sphere；S2, end cap sphere；S3, bulb sphere；T1, keyway；T2, driving key；W, main rovolving shaft；X, pad；Y, back-up ring.
Detailed description of the invention:
The invention will be further described below in conjunction with the accompanying drawings
Embodiment 1:
As shown in Figure 1, a kind of ball pivot power transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, the inner chamber of ball-and-socket arranges ball-and-socket Spherical Surface S 1, end cap inner chamber arranges end cap Spherical Surface S 2, bulb outer surface arranges bulb Spherical Surface S 3, S1 and S2 has equal sphere diameter, and S3 can be with S1 and the S2 altogether centre of sphere form sphere and be slidably matched.Ball-and-socket and end cap by datum end face P laminating be securely fitted in together with and have common main rovolving shaft W, main rovolving shaft W is by the centre of sphere of S1 with S2 vertical with datum end face P, the centre of sphere of S1 and S2 is positioned on datum end face P, so that the centre of sphere of S1 and S2 overlaps and is total to sphere, bulb is wrapped and is assemblied in the spherical cavity that S1 and S2 surrounds, and makes bulb Spherical Surface S 3 overlap with the centre of sphere of S1, S2.The opening diameter of external port E-2 of end cap is less than the sphere diameter of bulb Spherical Surface S 3, thus ensures spherical cavity that bulb Spherical Surface S 3 surrounds slip cooperating relationship correct between holding sphere therewith without departing from S1 and S2.It is additionally provided with the centre of sphere along main rovolving shaft W circumferential uniform 4 indents steel ball location sphere I R1, R1 on the datum end face P of ball-and-socket be positioned on datum end face P and keep equidistant with the centre of sphere of S1, the size of this distance spherical radius equal or close to S1.Accordingly, it is also equipped with on the datum end face P of end cap along main rovolving shaft W 4 uniform indent steel ball location sphere II R2 of circumference and coordinates with 4 indent steel ball location sphere I R1 one_to_one corresponding of ball-and-socket, R2 and R1 of corresponding cooperation keeps ball relation of plane the most altogether, and surrounding equal or close to hemispherical cavity, this cavity sphere is wrapped on the spherical outside surface of steel ball F and keeps slip cooperating relationship correct between sphere.The secondary gyroaxis J of bulb H by the centre of sphere of bulb Spherical Surface S 3 and with the dead in line of bulb handle H-1, it is additionally provided with along circumferential 4 the uniform slideway L of secondary gyroaxis J in bulb Spherical Surface S 3, the slideway plane of symmetry I M1 and the slideway plane of symmetry II M2 is mutually perpendicular to and intersects at secondary gyroaxis J, the slideway plane of symmetry I M1 point 2 slideways therein the plane of symmetry simultaneously as another 2 slideways along slideway longitudinal direction；Accordingly, the slideway plane of symmetry II M2 then point another 2 slideways therein the plane of symmetry simultaneously as remaining 2 slideway along slideway longitudinal direction.Piston shoes G is 4, and correspondence is slidably fitted in the groove of 4 slideway L respectively, and 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 piston shoes end face G-1 coordinates with ball-and-socket Spherical Surface S 1 and end cap Spherical Surface S 2.Steel ball location sphere III R3 it is additionally provided with on piston shoes end face G-1, steel ball location sphere III R3 and corresponding steel ball location sphere I R1 and steel ball location sphere II R2 can be encircled into a spherical cavity parcel and coordinate on the spherical outside surface of steel ball F, and steel ball F can be freely rotatable in this spherical cavity.When ball-and-socket, bulb, bulb handle, end cap, steel ball and piston shoes are assembled as described above after relation is assembled together, steel ball F has just been limited in steel ball location sphere I R1 and steel ball location sphere II R2, piston shoes G is then limited between ball-and-socket Spherical Surface S 1 and slideway bottom surface and is retrained by slideway side and steel ball F simultaneously, bulb and bulb handle can swing relative to ball-and-socket, so that producing angle between the secondary gyroaxis J of the main rovolving shaft W and bulb H of ball-and-socket.
The ball-and-socket flange coaxial with main rovolving shaft W and cover flange it is respectively arranged with on ball-and-socket and end cap, keyway T1 it is additionally provided with on ball-and-socket flange and cover flange, centering face C-1 is set on power interface C, driving key T2 it is provided with on the C-1 of centering face, C-1 parcel in centering face is assemblied in ball-and-socket flange and the outer surface of cover flange and keeps with one heart, make driving key T2 be stuck in the keyway T1 of ball-and-socket flange and cover flange to transmit moment of torsion simultaneously, bolt is fixed together through ball-and-socket flange and cover flange with power interface C, ensure that ball-and-socket and end cap are with power interface C synchronous axial system, and by steel ball F, piston shoes G and slideway L transmits torque to bulb handle H-1, the connection spline that bulb handle H-1 is arranged by its outer end again transmits torque to next stage driving member.
As shown in Figure 2-5, respectively show 4 kinds of preferred slideway shape of cross sections and piston shoes shape of cross section with matching.The slideway shape of cross section of Fig. 2 is substantially rectangular；The slideway shape of cross section of Fig. 3 is substantially trapezoidal shape, and trapezoidal base is the circular arc of epirelief；The slideway shape of cross section of Fig. 4 is circular arc；The slideway shape of cross section of Fig. 5 is generally V-shape, and the bottom of V-arrangement is recessed circular arc；Correspondingly, piston shoes bottom surface is corresponding with above-mentioned slideway with the shape of cross section of piston shoes side, and being shaped as spherical and match with ball-and-socket Spherical Surface S 1 and end cap Spherical Surface S 2 of piston shoes end face.The longitudinal section shape of slideway bottom surface and piston shoes bottom surface is as it is shown in figure 1, be the circular arc concentric with bulb Spherical Surface S 3.
As shown in figs. 1-7, it is vertically arranged with the piston shoes oil groove K on some through surfaces along slideway on the outer surface of piston shoes G, steel ball location sphere III R3 and piston shoes bottom surface G-2 is through by piston shoes oilhole Q, the slideway oil groove U, piston shoes oilhole Q that are vertically arranged with through slideway bottom surface on the slideway bottom surface L-1 of slideway L along slideway are through with slideway oil groove U.As it is shown in figure 1, bulb and bulb handle are integral type structure, being internally provided with oil leab N, lubricating oil can be transported in the cavity of slideway L by oil leab N.
It is further fixedly arranged on telescopic sealing shroud I between end cap E and bulb handle H-1, thus internal transmission part is sealed and protects, prevent lubricating oil to run off and dust pollutes.
Embodiment 2:
As shown in Figure 6, embodiment 2 is the deformation of embodiment 1, and difference is: the configuration quantity of slideway and piston shoes is right to increasing to 6 by 4, and remaining structure is similar to, and is not repeated at this.The configuration quantity of slideway and piston shoes can determine according to actual needs.
Embodiment 3:
As shown in Figure 7, embodiment 3 is embodiment 1 and the deformation of embodiment 2, and difference is: the present embodiment eliminates piston shoes, and the shape of cross section adjusting slideway L accordingly is circular arc as shown in Figure 4, and be allowed to directly to coordinate with the sphere of steel ball F, the motion of constraint steel ball F.Remaining structure is similar to, and is not repeated at this.Fig. 7 show the topology example of 8 slideways, can 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, difference is: the present embodiment roller F1 replaces steel ball F, roller F1 can be cylinder, or its one end coordinated with slideway or piston shoes is arranged to spherical, conical or other shape being suitable for, also can bearing F2 be set on roller F1 and be beneficial to the rotation of roller F1.The roller F1 that Fig. 8 illustrates assembles schematic diagram and coordinates the adaptations of parts with it, and remaining structure is similar with embodiment 1-3, is not repeated at this.
Embodiment 5:
As shown in figure 11, embodiment 5 is the deformation of embodiment 1-4, compared with corresponding embodiment, difference is: the connected mode between ball-and-socket D from power interface C is different, ball-and-socket D is provided with the ball-and-socket interface D-2 coaxial with main rovolving shaft W, the structure of ball-and-socket interface D-2 can be spline housing or the splined shaft of band external splines of band internal spline, correspondingly, power interface C is correspondingly arranged splined shaft or the spline housing of band internal spline of band external splines, reaches to be connected the purpose of transmission power with the cooperation of spline housing by splined shaft.It can equivalent substitution be also singly linked mode that above-mentioned spline connects, and also can change the mode of Flange joint into.
Embodiment 6:
As shown in figure 12, embodiment 6 is the deformation of embodiment 1-4, compared with corresponding embodiment, difference is: changed into split fabricated construction by integral structure between bulb and bulb handle, bulb is provided centrally with the splined hole coaxial with pair gyroaxis J and is connected with the splined shaft being correspondingly arranged at bulb handle one end, by arranging between the step surface that bulb is fixed on pad X and the spline other end by pad X and back-up ring Y in spline one end.Remaining structure is same as in Example 1, is not repeated at this.
Embodiment 7:
As shown in figure 13, the ball pivot of above-described embodiment can match use, middle is slidably connected by key, and to compensate transmission apart from upper change, its transmission principle is identical with single ball pivot, is not repeated at this.
It is pointed out that and these are only the present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto.Obviously, according to actual needs, many variations can also be made, such as: the pro forma change of ball-and-socket interface D-2, ball-and-socket and the change of end cap type of attachment, bulb and change, slideway and the piston shoes cross sectional shape in bulb handle type of attachment, the change of quantity, oil groove shape, the change etc. of quantity.Any those of ordinary skill in the art, in the technical scope that the invention discloses, according to schematic diagram, embodiment and inventive concept thereof equivalent or the change in addition of the present invention, should be contained within protection scope of the present invention.
Claims (9)
1. a ball pivot power transmission shaft, including ball-and-socket, bulb, bulb handle, end cap, steel ball, it is characterized in that: the inner chamber of ball-and-socket arranges ball-and-socket sphere (S1), end cap inner chamber arranges end cap sphere (S2), bulb outer surface arranges bulb sphere (S3), ball-and-socket sphere (S1) and end cap sphere (S2) have equal sphere diameter, and bulb sphere (S3) can be with ball-and-socket sphere (S1) and end cap sphere (S2) centre of sphere altogether form sphere and be slidably matched；Ball-and-socket and end cap by datum end face (P) laminating be securely fitted in together with and have common main rovolving shaft (W), main rovolving shaft (W) is by ball-and-socket sphere (S1) and the centre of sphere of end cap sphere (S2) vertical with datum end face (P), the centre of sphere of ball-and-socket sphere (S1) and end cap sphere (S2) is positioned on datum end face (P), so that the centre of sphere of ball-and-socket sphere (S1) and end cap sphere (S2) overlaps and makes ball-and-socket sphere (S1) and end cap sphere (S2) sphere altogether, bulb is wrapped and is assemblied in ball-and-socket sphere (S1) and in spherical cavity that end cap sphere (S2) surrounds, bulb sphere (S3) is made to overlap with the centre of sphere of ball-and-socket sphere (S1) and end cap sphere (S2)；The opening diameter of the external port (E-2) of end cap is less than the sphere diameter of bulb sphere (S3), thus ensures spherical cavity that bulb sphere (S3) surrounds slip cooperating relationship correct between holding sphere therewith without departing from ball-and-socket sphere (S1) and end cap sphere (S2)；It is additionally provided with along circumferential at least 1 the uniform indent steel ball location sphere I (R1) of main rovolving shaft (W) on the datum end face (P) of ball-and-socket, the centre of sphere of steel ball location sphere I (R1) is positioned at datum end face (P) and above and keeps equidistant with the centre of sphere of ball-and-socket sphere (S1), and the size of this distance is equal or close to the spherical radius of ball-and-socket sphere (S1)；Match with above-mentioned steel ball location sphere I (R1), accordingly, it is also equipped with along main rovolving shaft (W) at least 1 uniform indent steel ball location sphere II (R2) of circumference indent steel ball location sphere I (R1) corresponding matching with ball-and-socket on the datum end face (P) of end cap, the steel ball location sphere II (R2) of corresponding cooperation and steel ball location sphere I (R1) keep ball relation of plane the most altogether, and surround equal or close to hemispherical cavity, on the spherical outside surface of the steel ball (F) that this cavity sphere is wrapped in correspondence and keep slip cooperating relationship correct between sphere；The secondary gyroaxis (J) of bulb (H) by the centre of sphere of bulb sphere (S3) and with the dead in line of bulb handle (H-1), it is additionally provided with on bulb sphere (S3) around circumferential uniform at least 1 slideway (L) of secondary gyroaxis (J), thus matches with above-mentioned steel ball location sphere I (R1) and steel ball location sphere II (R2)；Every slideway (L) is respectively provided with the plane of symmetry, and this plane of symmetry is by secondary gyroaxis (J) and the centre of sphere of bulb sphere (S3)；Match with slideway (L), piston shoes (G) can be set, piston shoes (G) correspondence is slidably fitted in the groove of slideway (L), piston shoes bottom surface (G-2) is slidably matched with slideway bottom surface (L-1), piston shoes side (G-3) is slidably matched with slideway side (L-2), and piston shoes end face (G-1) coordinates with ball-and-socket sphere (S1) and end cap sphere (S2)；Steel ball location sphere III (R3) it is additionally provided with on piston shoes end face (G-1), steel ball location sphere III (R3) can be encircled into a spherical cavity parcel and coordinate on the spherical outside surface of steel ball (F) with corresponding steel ball location sphere I (R1) and steel ball location sphere II (R2), and steel ball (F) can be freely rotatable in this spherical cavity；When ball-and-socket, bulb, bulb handle, end cap, steel ball and piston shoes are assembled as described above after relation is assembled together, steel ball (F) has just been limited in steel ball location sphere I (R1) and steel ball location sphere II (R2), and piston shoes (G) are then limited between ball-and-socket sphere (S1) and slideway bottom surface (L-1) and simultaneously by slideway side and the constraint of steel ball (F)；Bulb and bulb handle can swing relative to ball-and-socket, thus can make to produce between the main rovolving shaft (W) of ball-and-socket and the secondary gyroaxis (J) of bulb (H) angle；After the power interface of ball-and-socket Yu machine links together, ball-and-socket just being rotated by power interface, and transmit torque to piston shoes (G) by steel ball (F), piston shoes (G) transmit torque to bulb and bulb handle further through slideway (L), thus drive bulb and bulb handle to rotate, and transmit power by bulb handle to the next stage drive disk assembly being connected with bulb handle further, thus realize the purpose of ball pivot transmission of the present invention；Further, as the structure simplified, above-mentioned piston shoes can also remove, adjust the shape of cross section of slideway (L) accordingly to be allowed to the sphere with steel ball (F) and directly contact cooperation and retrain the motion of steel ball (F) simultaneously, slideway (L) is directly transmitted torque to by steel ball (F), thus drive bulb and bulb handle to rotate, it is achieved the purpose of ball pivot transmission of the present invention.
A kind of ball pivot power transmission shaft the most according to claim 1, it is characterised in that: can arrange in the cavity of the sensible slideway of oil leab (L) on bulb and/or ball-and-socket, end cap, to facilitate daily lubricating maintenance；Piston shoes oilhole (Q) can be set on piston shoes (G) thus through steel ball location sphere III (R3) and piston shoes bottom surface (G-2)；Can be along the longitudinally disposed oil-way of slideway on the outer surface of piston shoes (G) and/or on the ramp surface of slideway (L), the lubrication between pair thus promotion is respectively slidably matched.
A kind of ball pivot power transmission shaft the most according to claim 1; it is characterized in that: between end cap (E) and bulb handle (H-1), be further fixedly arranged on telescopic sealing shroud (I); thus internal transmission part is sealed and protects, prevent lubricating oil to run off and dust pollutes.
A kind of ball pivot power transmission shaft the most according to claim 1, it is characterised in that: the shape of cross section of bulb slideway can be circular arc, or substantially rectangular；Or substantially trapezoidal shape, trapezoidal base is the circular arc of epirelief；Or substantially (V) shape, the base of (V) shape is recessed circular arc；Correspondingly, piston shoes bottom surface is corresponding with above-mentioned slideway with the shape of cross section of piston shoes side, and being shaped as spherical and match with ball-and-socket sphere (S1) and end cap sphere (S2) of piston shoes end face；The longitudinal section shape of slideway bottom surface and piston shoes bottom surface is the circular arc concentric with bulb sphere (S3).
A kind of ball pivot power transmission shaft the most according to claim 1, it is characterized in that: on ball-and-socket and end cap, be respectively arranged with the ball-and-socket flange coaxial with main rovolving shaft (W) and cover flange, keyway (T1) it is additionally provided with on ball-and-socket flange and cover flange, centering face (C-1) is set on power interface (C), driving key (T2) it is provided with on centering face (C-1), centering face (C-1) parcel is assemblied in ball-and-socket flange and the outer surface of cover flange and keeps with one heart, make driving key (T2) be stuck in the keyway (T1) of ball-and-socket flange and cover flange to transmit moment of torsion simultaneously, bolt is fixed together through ball-and-socket flange and cover flange with power interface (C), ensure that ball-and-socket and end cap are with power interface (C) synchronous axial system.
A kind of ball pivot power transmission shaft the most according to claim 1, it is characterized in that: ball-and-socket (D) is provided with the ball-and-socket interface (D-2) coaxial with main rovolving shaft (W), the structure of ball-and-socket interface (D-2) can be spline housing or the splined shaft of band external splines of band internal spline, correspondingly, power interface (C) is correspondingly arranged splined shaft or the spline housing of band internal spline of band external splines, reaches to be connected the purpose of transmission power with the cooperation of spline housing by splined shaft；It can equivalent substitution be also singly linked mode that above-mentioned spline connects, or changes the mode of Flange joint into.
A kind of ball pivot power transmission shaft the most according to claim 1, it is characterised in that: for split fabricated construction between bulb and bulb handle, bulb is provided centrally with the splined hole coaxial with secondary gyroaxis (J) and is connected with the splined shaft being correspondingly arranged at bulb handle one end.
8. according to the arbitrary described a kind of ball pivot power transmission shaft of claim 1-7, it is characterized in that: described steel ball (F) can use roller (F1) to replace, roller (F1) can be cylinder, or its one end coordinated with slideway or piston shoes is arranged to spherical, conical or other shape being suitable for thus coordinates with slideway or piston shoes, also can bearing (F2) be set on roller (F1) and be beneficial to the rotation of roller (F1).
A kind of ball pivot power transmission shaft the most according to claim 8, it is characterised in that: described ball pivot can match uses, and centre is slidably connected by key.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620617354 | 2016-06-22 | ||
| CN2016206173545 | 2016-06-22 | ||
| CN201610452824 | 2016-06-22 | ||
| CN2016104528241 | 2016-06-22 |
Publications (2)
| Publication Number | Publication Date |
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| CN105927674A true CN105927674A (en) | 2016-09-07 |
| CN105927674B CN105927674B (en) | 2019-01-25 |
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| 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 |
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| Country | Link |
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| CN (2) | CN205918785U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110439194A (en) * | 2019-07-22 | 2019-11-12 | 上海秦森园林股份有限公司 | A kind of mounting structure and installation method of pseudo-classic architecture wood rafter |
| CN111927937A (en) * | 2020-08-12 | 2020-11-13 | 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 |
| CN112077510A (en) * | 2020-08-21 | 2020-12-15 | 上海航天精密机械研究所 | Laser welding and welding following pressing device and method with coaxial protection function |
| CN113074300A (en) * | 2021-03-29 | 2021-07-06 | 郑维洁 | Novel ball center-winding action structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205918785U (en) * | 2016-06-22 | 2017-02-01 | 朱德伟 | Ball pivot transmission shaft |
| CN110230583B (en) * | 2018-08-06 | 2020-09-04 | 青岛极致创新科技有限公司 | Plunger pump and plunger motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN110439194A (en) * | 2019-07-22 | 2019-11-12 | 上海秦森园林股份有限公司 | A kind of mounting structure and installation method of pseudo-classic architecture wood rafter |
| 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 |
| CN111927937A (en) * | 2020-08-12 | 2020-11-13 | 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 |
| 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 |
| CN112077510A (en) * | 2020-08-21 | 2020-12-15 | 上海航天精密机械研究所 | Laser welding and welding following pressing device and method with coaxial protection function |
| CN113074300A (en) * | 2021-03-29 | 2021-07-06 | 郑维洁 | Novel ball center-winding action structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927674B (en) | 2019-01-25 |
| CN205918785U (en) | 2017-02-01 |
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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 |
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