CN211901358U

CN211901358U - Heavy universal coupling with self-locking snap spring

Info

Publication number: CN211901358U
Application number: CN202020130732.3U
Authority: CN
Inventors: 陶健; 周乾龙
Original assignee: Ningbo Shengyu Transmission Technology Co ltd
Current assignee: Ningbo Shengyu Transmission Technology Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-11-10
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a heavy universal joint with auto-lock jump ring, including cross axial region and cross joint, the cross axial region includes four spindle nose, the cross joint is established including the cover the axle sleeve of spindle nose side, the annular has been seted up at its one end of keeping away from each other to the spindle nose, it has the jump ring to peg graft in the annular, jump ring side outstanding in the spindle nose lateral wall, the jump ring includes that a fan-shaped strip, butt are in half fan-strip, the both ends butt at fan-shaped strip both ends are in two half fan-strip is close to the grafting strip of one end each other, grafting strip both ends face is parallel to each other, the confession has been seted up to the axle sleeve inner wall the mounting. The utility model has the characteristics of simple to operate, long service life etc.

Description

Heavy universal coupling with self-locking snap spring

Technical Field

The utility model belongs to the technical field of the transmission equipment technique and specifically relates to a heavy universal joint with auto-lock jump ring is related to.

Background

At present, a universal joint is a mechanical part for connecting two shafts (a driving shaft and a driven shaft) in different mechanisms to rotate together by using the characteristics of the mechanisms so as to transmit torque. The universal coupling can enable two transmission shafts with different shafts (namely, the axes of the two transmission shafts have an included angle) to realize continuous rotation of the two connected transmission shafts, and reliably transmit torque and motion. The biggest characteristics of universal joint are: the structure has larger angle and direction compensation capability, compact structure and high transmission efficiency. In the high-speed heavy-load power transmission, the universal coupling also has the effects of buffering, damping and improving the dynamic performance of a shaft system.

The prior patent grant publication number: CN102966676B universal coupling discloses a universal coupling, which comprises a cross shaft part with four shaft parts configured in a cross shape; a bottomed cylindrical bearing cup rotatably fitted to an outer peripheral surface of each of the shaft portions via a rolling element, an inner bottom surface of the bearing cup and a distal end surface of the shaft portion opposed to the inner bottom surface sliding in an annular sliding region around an axis of the shaft portion, the bearing cup comprising: oil holes formed inside the shaft portions and opened at the distal end surfaces of the shaft portions; an oil retaining annular groove provided in at least one distal end surface of the shaft portion and formed in an annular shape so as to surround the oil hole; and an annular shaft tip surface provided on an outer peripheral side of the annular groove for oil storage, the annular shaft tip surface being formed to hold oil in the annular groove for oil storage between the annular shaft tip surface and an inner bottom surface of the bearing cup.

The above prior art solutions have the following drawbacks: for guaranteeing that the universal coupling can not carry out axial displacement after cooperating with the axle sleeve, set up the jump ring between axle sleeve and universal coupling usually, nevertheless when advancing between axle sleeve and the universal coupling with the jump ring installation, need guarantee that the jump ring can not incline along its axial direction, then still need pinch the jump ring tightly and make its deformation, whole installation is very troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple to operate's heavy universal joint with auto-lock jump ring to the not enough of prior art existence.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a heavy universal joint with auto-lock jump ring, includes cross axial region and cross joint, the cross axial region includes four spindle noses, the cross joint is established including the cover the axle sleeve of spindle nose side, the annular has been seted up at its one end of keeping away from each other to the spindle nose, it has the jump ring to peg graft in the annular, jump ring side salient in the spindle nose lateral wall, the jump ring includes that a fan-shaped strip, butt are in half fan strip, the both ends butt at fan-shaped strip both ends are in two half fan strip is close to the grafting strip of one end each other, grafting strip both ends face is parallel to each other, the confession has been seted up to the axle sleeve inner wall.

Through adopting above-mentioned technical scheme, when installing the cross axial region in the axle sleeve, establish the axle sleeve outer end earlier, the mounting groove of axle sleeve inner wall and the annular looks butt on the spindle nose this moment, at this moment earlier with fan-shaped strip grafting in mounting groove and the annular, inject two half fan-shaped strips into mounting groove and annular again, make half fan-shaped strip terminal surface and fan-shaped strip's terminal surface butt, at last will peg graft the strip by the mounting groove again, the groove department that the terminal surface of annular and two half fan-shaped strips constitutes inserts, the jump ring installation is accomplished this moment, in this scheme, the installation of jump ring is very convenient, and this jump ring has self-locking function, after the installation, only pull out earlier the grafting strip, all the other parts just can take out in proper order, it is safer, divide into the polylith the jump ring simultaneously, integrative jump ring has been avoided.

The utility model discloses further set up to: the end cover is arranged at one end, far away from each other, of the shaft head, the protruding ring is arranged at one end, close to the shaft head, of the end cover, the scarf joint groove for the clamping spring to be spliced is formed in one end, far away from the end cover, of the protruding ring, and one end of the protruding ring abuts against the inner wall of the splicing groove.

Through adopting above-mentioned technical scheme, after accomplishing axle sleeve and jump ring installation, install the end cover by the outer end of spindle nose for the terminal surface butt of end cover is at the terminal surface of spindle nose, makes the terminal surface butt of bulge loop at the inserting groove inner wall, and the inner wall butt in the one end of jump ring of scarf joint groove, and this scheme carries out the secondary through the end cover to the jump ring and fixes, has avoided the jump ring to drop.

The utility model discloses further set up to: the end cover is close to the one end of spindle nose is provided with many reference columns, the constant head tank that supplies the reference column grafting is seted up to the one end of spindle nose.

Through adopting above-mentioned technical scheme, the spindle nose has four altogether, and the direction is different, so the end cover needs four equally, when the end cover is installing, can not just rotate the cross axial region for one at every installation, make the position of installation up, so when the installation end cover, need the manual work to hold up the end cover and install again, it is very troublesome, through setting up the reference column in this scheme, when making the installation end cover, directly inject the reference column into the constant head tank, do not need the manual end cover of holding up this moment, then install, make the installation of end cover more convenient.

The utility model discloses further set up to: the end cover is fixed at one end of the shaft head through a positioning bolt, and an anti-skid tooth gasket is arranged between the positioning bolt and the shaft head.

Through adopting above-mentioned technical scheme, the end cover passes through the reference column and installs in advance behind spindle nose one end, need fix through positioning bolt, and this scheme is through setting up anti-skidding tooth gasket between positioning bolt and spindle nose for this end cover is fixed more firmly, has reduced the risk that positioning bolt drops, has increased the security that this universal joint used.

The utility model discloses further set up to: and chamfers are arranged at the outer side ends of the fan-shaped strips, the half fan-shaped strips and the inserting strips.

Through adopting above-mentioned technical scheme, when inserting into the mounting groove with fan-shaped strip half-sector strip and grafting strip in, the width and the fan-shaped strip of mounting groove, half-sector strip is the same with the width of grafting strip, this moment with fan-shaped strip, half-sector strip and grafting strip insert not very easily, probably need be more accurate to the position, delay time very much, in this scheme fan-shaped strip, half-sector strip and grafting strip outside set up the chamfer, make the less chamfer of width insert earlier when inserting, then guide fan-shaped strip, half-sector strip and grafting strip insert, make the installation of jump ring faster, promote the installation effectiveness.

The utility model discloses further set up to: and a magnetic suction sheet is arranged between the fan-shaped strip and the half fan-shaped strip.

Through adopting above-mentioned technical scheme, when installing fan-shaped strip and half fan-shaped strip in proper order, need make the terminal surface of fan-shaped strip and half fan-shaped strip carry out the butt, just can make the grafting strip insert, nevertheless insert the back with half fan-shaped strip, adjust more troublesome again, inhale the piece through setting up the magnetism in this scheme for when installing half fan-shaped strip, magnetism is inhaled the piece and is direct with fan-shaped strip and half fan-shaped strip adsorb together, has avoided adjustment once more, and is more convenient.

The utility model discloses further set up to: the shaft head sets the side wall of the ring groove into an inclined guide surface.

Through adopting above-mentioned technical scheme, fan-shaped strip, half fan-shaped strip and grafting strip all are circular-arcly, but its direction along the mounting groove is straight form, when with fan-shaped strip, half fan-shaped strip and grafting strip peg graft into the mounting groove in, need the butt in the annular, thereby make the volume of annular want bigger, this scheme is through setting up the guide face that the annular lateral wall is the slope form, when making the fan-shaped strip of easy to assemble, half fan-shaped strip and grafting strip, reduce the size of annular, convenient processing.

The utility model discloses further set up to: an oil filling cup is arranged in the middle of the end cover.

Through adopting above-mentioned technical scheme, when this universal joint is when using, its inside lubricating oil that need pour into, this scheme is through setting up the oiling cup in end middle part for arbitrary one in the four end covers of accessible during the oiling, it is more convenient.

To sum up, the utility model discloses a beneficial technological effect does:

1. the clamp spring is arranged into the fan-shaped strip, the two half fan-shaped strips and the inserting strip, so that the clamp spring is convenient to mount;

2. the positioning column and the positioning groove for the insertion of the positioning column are arranged, so that the end cover is more convenient to mount;

3. the magnetic attraction piece is arranged between the fan-shaped strip and the half fan-shaped strip, and the side wall of the annular groove is arranged to be an inclined guide surface, so that the clamp spring is more convenient to install.

Drawings

FIG. 1 is a schematic diagram of an appearance structure of a heavy universal coupling with a self-locking snap spring;

FIG. 2 is a schematic view of the cross shaft;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is an appearance structure diagram of the snap spring.

In the figure: 1. a cross shaft portion; 2. a cross joint; 3. a shaft head; 4. a shaft sleeve; 5. an end cap; 6. a ring groove; 7. a guide surface; 8. mounting grooves; 9. a clamp spring; 10. a sector bar; 11. half a fan bar; 12. inserting strips; 13. a magnetic attraction sheet; 14. chamfering; 15. a convex ring; 16. a positioning column; 17. positioning a groove; 18. embedding grooves; 19. an oil filling cup; 20. positioning the bolt; 21. anti-slip tooth pad.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the heavy universal coupling with the self-locking snap spring comprises a cross shaft part 1 and a cross joint 2, wherein the cross shaft part 1 comprises four shaft heads 3, the cross joint 2 comprises a shaft sleeve 4 sleeved at the side end of each shaft head 3, and an end cover 5 is arranged at one end, far away from each other, of each shaft head 3.

Referring to fig. 2 and 3, a ring groove 6 is formed at one end of the spindle nose 3, the end of the ring groove 6, which is far away from the spindle nose 3, is a bottom wall of the ring groove 6, which is perpendicular to the extending direction of the spindle nose 3, and the other end of the ring groove 6 is a side wall of the ring groove 6, the side wall of the ring groove 6 is provided with an inclined guide surface 7, the guide surface 7 is an annular surface, and the inclined direction of the annular surface is gradually inclined towards the axis center from the spindle.

The shaft sleeve 4 is provided with a mounting groove 8 on the inner wall thereof, the mounting groove 8 is also an annular groove, and the side wall of the mounting groove 8 away from one end of the end cover 5 is flush with the bottom wall of the annular groove 6.

Referring to fig. 3 and 4, the snap spring 9 is embedded in the mounting groove 8, the snap spring 9 is a metal ring, the inner side of one end of the snap spring 9 abuts against the bottom wall of the ring groove 6, the outer side abuts against the side wall of the mounting groove 8, and the side end of the snap spring 9 abuts against the bottom wall of the mounting groove 8. The clamp spring 9 comprises a fan-shaped strip 10, two half fan-shaped strips 11 and an inserting strip 12, a square magnetic attraction piece 13 is respectively bonded at two ends of the fan-shaped strip 10, the tangent planes at two ends of the fan-shaped strip 10 are along the diameter direction of the shaft head 3, the end faces of the two half fan-shaped strips 11 and one end, abutted to the fan-shaped strip 10, are also along the diameter direction of the shaft head 3, when the half fan-shaped strips 11 are installed, the other end faces of the two half fan-shaped strips 11 are parallel to each other, and the end faces at two ends of the inserting strip 12 are.

The outer ends of the fan-shaped strips 10, the half fan-shaped strips 11 and the plug-in strips 12 are provided with chamfers 14.

Referring to fig. 2 and 3, a protruding ring 15 is arranged at one end of the end cover 5 close to the spindle nose 3, the end face of one end of the protruding ring 15 close to the spindle nose 3 abuts against the bottom wall of the annular groove 6, a plurality of positioning columns 16 are integrally arranged at one end of the end cover 5 close to the spindle nose 3, one end of the spindle nose 3 is provided with a positioning groove 17 for the positioning columns 16 to be inserted, and when the end face of the end cover 5 abuts against the end face of the spindle nose 3, the positioning columns 16 are completely inserted into the.

The convex ring 15 is provided with an embedding groove 18 at one end close to the shaft head 3, the embedding groove 18 is internally provided with a bottom wall of the embedding groove 18 which is parallel to the bottom wall of the ring groove 6, the other end of the embedding groove is provided with a side wall of the embedding groove 18, the side wall of the embedding groove 18 is abutted against the end surface of the inner ring of the clamp spring 9, and the bottom wall of the embedding groove 18 is flush with the other side wall of the mounting groove 8 and is abutted against the end surface of one end of the clamp. The clamping spring 9 is fixed by the mounting groove 8, the ring groove 6 and the scarf groove 18.

An oil filling cup 19 is inserted in the middle of the end cover 5 in an interference manner, the oil filling cup 19 is a straight-through type pressure filling oil cup 19, the structure and the working principle of the oil filling cup are the prior art, and the structure and the working principle are not explained here. The end cover 5 is provided with a plurality of positioning bolts 20 on the outer side of the oil filling cup 19, the end cover 5 is fixed on the spindle nose 3, an anti-skidding tooth gasket 21 is arranged between the positioning bolts 20 and the end cover 5, and the positioning bolts 20 penetrate through the anti-skidding tooth gasket 21 to be fixed on the end face of the end cover 5, so that the friction force between the positioning bolts and the end cover 5 is increased.

The implementation principle of the embodiment is as follows:

when the cross shaft part 1 is arranged in the shaft sleeve 4, the shaft sleeve 4 is sleeved at the outer end of the shaft head 3, the mounting groove 8 on the inner wall of the shaft sleeve 4 is abutted with the annular groove 6 on the shaft head 3, the fan-shaped strips 10 are inserted into the mounting groove 8 and the annular groove 6, then the two half fan-shaped strips 11 are inserted into the mounting groove 8 and the annular groove 6, so that the end surfaces of the half-fan strips 11 and the end surfaces of the fan strips 10 are absorbed together by the magnetic suction sheets 13, and finally the inserting strips 12 are inserted into the mounting groove 8, the ring groove 6 and the space between the end surfaces of the two half-fan strips 11, after the shaft sleeve 4 and the clamp spring 9 are installed, the end cover 5 is installed from the outer end of the shaft head 3, the end surface of the end cover 5 is abutted against the end surface of the shaft head 3, the positioning column 16 is inserted into the positioning groove 17, the end surface of the convex ring 15 is abutted against the inner wall of the insertion groove, the inner wall of the engagement groove 18 abuts against one end of the clamp spring 9 and is then fixed by a set bolt 20.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a heavy universal joint with auto-lock jump ring, includes cross axial region (1) and cross joint (2), cross axial region (1) includes four spindle nose (3), cross joint (2) are established including the cover axle sleeve (4) of spindle nose (3) side, its characterized in that: annular (6) have been seted up in its one end of keeping away from each other to spindle nose (3), it has jump ring (9) to peg graft in annular (6), jump ring (9) side salient in spindle nose (3) lateral wall, jump ring (9) include a fan-shaped strip (10), the butt is in half fan-shaped strip (11), both ends butt at fan-shaped strip (10) both ends are in two half fan-shaped strip (11) are close to grafting strip (12) of one end each other, grafting strip (12) both ends face is parallel to each other, the confession has been seted up to axle sleeve (4) inner wall mounting groove (8) that jump ring (9) were pegged graft.

2. The heavy duty universal coupling with a self-locking circlip of claim 1, wherein: end cover (5) are provided with in the one end of keeping away from each other spindle nose (3), end cover (5) are close to the one end of spindle nose (3) is provided with bulge loop (15), bulge loop (15) are kept away from the confession has been seted up to the one end of end cover (5) scarf joint groove (18) that jump ring (9) were pegged graft, bulge loop (15) one end butt in annular (6) inner wall.

3. The heavy duty universal coupling with a self-locking circlip of claim 2, wherein: the end cover (5) is close to one end of the shaft head (3) and is provided with a plurality of positioning columns (16), and one end of the shaft head (3) is provided with positioning grooves (17) for the positioning columns (16) to be spliced.

4. The heavy duty universal coupling with a self-locking circlip of claim 3, wherein: the end cover (5) is fixed at one end of the shaft head (3) through a positioning bolt (20), and an anti-skidding tooth gasket (21) is arranged between the positioning bolt (20) and the shaft head (3).

5. The heavy duty universal coupling with a self-locking circlip of claim 4, wherein: and chamfers (14) are arranged at the outer side ends of the fan-shaped strips (10), the half fan-shaped strips (11) and the inserting strips (12).

6. The heavy duty universal coupling with a self-locking circlip of claim 5, wherein: a magnetic absorption sheet (13) is arranged between the fan-shaped strip (10) and the half fan-shaped strip (11).

7. The heavy duty universal coupling with a self-locking circlip of claim 6, wherein: the side wall of the annular groove (6) is set to be an inclined guide surface (7) by the shaft head (3).

8. The heavy duty universal coupling with a self-locking circlip of claim 7, wherein: an oil filling cup (19) is arranged in the middle of the end cover (5).