CN211901363U

CN211901363U - Ball cage type synchronous universal coupling

Info

Publication number: CN211901363U
Application number: CN202020240214.7U
Authority: CN
Inventors: 陶健
Original assignee: Ningbo Shengyu Transmission Technology Co ltd
Current assignee: Ningbo Shengyu Transmission Technology Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-11-10
Anticipated expiration: 2030-03-02

Abstract

The utility model relates to a ball cage type synchronous universal coupling, which relates to the technical field of mechanical transmission and comprises a spline shaft and bell-shaped shells which are rotationally connected with the two ends of the spline shaft, wherein one side is integrally provided with the spline shaft and can be detachably provided with a rubber sheath, and the other side is integrally provided with the rubber sheath and can be detachably connected with the bell-shaped shell, and the end of the rubber sheath, which is far away from the spline shaft, is detachably connected with; one side an organic whole set up that the rubber sheath is close to the integrative solid fixed ring that is provided with of one end of bell shell, one side an organic whole set up on the bell shell supply solid fixed ring cover establish fixed recess, one side an organic whole set up that the rubber sheath is close to the one end an organic whole of integral key shaft and be provided with the spacing ring of contradicting, one side an organic whole set up on the integral key shaft an organic whole be provided with spacing ring conflict spacing stopper, one side an organic whole set up on the integral key shaft be provided with the spacing ring conflict fixed and with integral key shaft screw-thread fit's compress. The utility model discloses waterproof dirt-proof effect has.

Description

Ball cage type synchronous universal coupling

Technical Field

The utility model belongs to the technical field of mechanical transmission's technique and specifically relates to a synchronous universal joint of rzeppa.

Background

The universal coupling utilizes the characteristics of the mechanism thereof to ensure that the two shafts are not on the same axis, and the continuous rotation of the two connected shafts can be realized under the condition of an included angle of the axes, and the torque and the motion can be reliably transmitted.

For example, the universal coupling disclosed in chinese patent No. CN204878410U comprises a first coupling half and a second coupling half, a first claw disk, a first elastic body, a second claw disk, a transmission shaft, a third claw disk, a second elastic body, and a fourth claw disk are further disposed between the first coupling half and the second coupling half, the first coupling half is fixedly connected to the first claw disk, the first claw disk is engaged with claw-shaped teeth of the second claw disk, and the first elastic body is located in a gap between the first claw disk and the second claw disk, the edge of the end face of the second claw disc extends out of the first shell, 8 arc-shaped grooves are formed in the inner side of the first shell, 8 ball sockets corresponding to the arc-shaped grooves are formed in the outer side, close to one end of the first shell, of the transmission shaft, balls are arranged in the arc-shaped grooves and the ball sockets, and a limiting block is arranged on at least one side of each ball, so that the effect that impact and angle compensation cannot be achieved by a single coupler is achieved.

The above prior art solutions have the following drawbacks: although the utility model discloses a universal coupling utensil for CN204878410U makes the impact that a single shaft coupling can't adapt to and the effect that angle compensation can realize, when in actual use, universal coupling's ball, transmission shaft and stopper all expose in external environment, and universal coupling can meet impurity such as water and dust when using, the corrosion of water causes the inside device of shaft coupling especially the corrosion of ball easily, impurity such as dust causes the frictional force increase between ball and the transmission shaft easily, thereby cause universal coupling's life to reduce, there is the space of improvement still.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a synchronous universal joint of rzeppa, has waterproof dirt-proof effect to the not enough of prior art existence.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a ball cage type synchronous universal coupling comprises a spline shaft and bell-shaped shells which are rotatably connected to two ends of the spline shaft, wherein a rubber sheath is detachably mounted on the spline shaft, and one end, far away from the spline shaft, of the rubber sheath is detachably connected to the bell-shaped shells;

the one end an organic whole that the rubber sheath is close to the bell shell is provided with solid fixed ring, set up on the bell shell and supply solid fixed ring cover to establish fixed recess, the one end an organic whole that the rubber sheath is close to the integral key shaft is provided with the spacing ring, an organic whole is provided with the spacing stopper of contradicting with the spacing ring on the integral key shaft, be provided with on the integral key shaft and contradict fixedly and with integral key shaft screw-thread fit's compressing tightly cover with the spacing ring, be provided with on the integral key shaft and compress tightly cover screw thread portion of.

By adopting the technical scheme, the rubber sheath can cover the joint of the spline shaft and the bell-shaped shell, so that the joint of the spline shaft and the bell-shaped shell can be effectively prevented from being corroded by external impurities such as rainwater, dust and the like, the probability of rusting on parts such as balls and a transmission shaft is reduced, and the service life of the universal coupling is prolonged; the fixing ring is matched with the fixing groove, so that the rubber sheath can be installed on the bell-shaped shell; spacing ring, stopper and screw thread portion mutually support, and when the actual installation, screw thread portion can compress tightly the spacing ring to the stopper on to fix the one end that is close to the integral key shaft with rubber sheath and be difficult for droing on the integral key shaft, it is also convenient to install when improving the stability of rubber sheath installation, improves the efficiency of rubber sheath installation.

The present invention may be further configured in a preferred embodiment as: one side an organic whole that the cover that compresses tightly is close to the stopper is provided with the bulge loop, set up the joint groove that supplies the bulge loop to insert the joint on the stopper.

Through adopting above-mentioned technical scheme, bulge loop and joint groove mutually support, when the cover compresses tightly the spacing ring of rubber sheath to the stopper on, the bulge loop can compress tightly the spacing ring to the joint groove on the stopper for the spacing ring compresses tightly and is difficult for droing on the stopper, improves the stability of spacing ring installation to integral key epaxial, thereby improves rubber sheath and installs to integral key epaxial stability.

The present invention may be further configured in a preferred embodiment as: the outer side wall of the pressing sleeve is integrally provided with a plurality of holding strips.

Through adopting above-mentioned technical scheme, compress tightly the cover with spline shaft screw-thread fit in order to compress tightly the spacing ring to the stopper on, and the setting of gripping the strip for compress tightly the frictional force increase of cover and hand contact, thereby the hand is difficult for skidding when the cover is compressed tightly in the rotation, improves the convenience that the cover was compressed tightly in the rotation, improves work efficiency.

The present invention may be further configured in a preferred embodiment as: the clamping sleeve comprises a first clamping ring and a second clamping ring, clamping blocks are integrally arranged at two ends of the first clamping ring, and clamping holes for clamping the clamping blocks and corresponding to the clamping blocks one to one are formed in two ends of the second clamping ring.

Through adopting above-mentioned technical scheme, the diameter at the both ends of integral key shaft will be greater than the diameter of integral key shaft mid portion, it mutually supports through first joint ring and second joint ring to compress tightly the cover, when will compress tightly the cover and install to the integral key shaft, the cover establish on the integral key shaft after the joint piece on the first joint ring of accessible and the joint hole on the second joint ring each other joint can, the both ends of integral key shaft can not cause the interference to compressing tightly the cover, and joint piece and joint hole mutually support, make the connection between first joint ring and the second joint ring more convenient, and the work efficiency is improved.

The present invention may be further configured in a preferred embodiment as: a plurality of abutting blocks are integrally arranged at one end, far away from the first clamping ring, of the clamping block.

Through adopting above-mentioned technical scheme, the setting of butt piece for after the joint piece inserts to the joint hole, the butt piece receives the extrusion and takes place little deformation, butt piece joint after the deformation between joint piece and joint hole, make the joint piece insert the damping increase to in the joint hole, thereby make joint piece joint to the joint hole in stable thinking more, thereby improve the stability of installation between first joint ring and the second joint ring.

The present invention may be further configured in a preferred embodiment as: the fixing ring is characterized in that a plurality of fixing columns are integrally arranged on one side, close to the bottom of the fixing groove, of the fixing ring, a plurality of fixing holes for the fixing columns to be inserted into and communicated with the fixing groove are formed in the bell-shaped shell, and the fixing holes and the fixing columns are arranged in a one-to-one correspondence mode.

By adopting the technical scheme, the fixing columns are matched with the fixing holes, when the fixing ring is sleeved and clamped in the fixing groove, the fixing columns on the fixing ring can be inserted into the fixing holes in the bell-shaped shell, so that the fixing ring is sleeved and fixed on the fixing groove and is not easy to fall off, the stability of the fixing ring in the fixing groove is improved, and the stability of the rubber sheath in the bell-shaped shell is improved.

The present invention may be further configured in a preferred embodiment as: one side an organic whole that fixed column and fixed orifices lateral wall contradicted is provided with a plurality of anti-skidding sand grips.

Through adopting above-mentioned technical scheme, the setting of antiskid sand grip, after the fixed column inserted to the fixed orifices, can form certain clearance between fixed column and fixed orifices, and the setting of antiskid sand grip can fill the gap between fixed column and the fixed orifices to make the damping effect between fixed column and the fixed orifices strengthen, thereby further improve the stability of rubber sheath installation to the bell shell.

The present invention may be further configured in a preferred embodiment as: a fixing hoop is arranged on the bell-shaped shell and fixes the fixing ring into the fixing groove.

Through adopting above-mentioned technical scheme, the setting of fixed clamp can be with solid fixed ring chucking to fixed recess for gu fixed ring is difficult to break away from fixed recess, further improves the stability of rubber sheath installation to bell shell.

To sum up, the utility model discloses a following at least one useful technological effect:

1. due to the arrangement of the rubber sheath, the universal coupling can be prevented from being corroded by impurities such as rainwater, dust and the like, and the service life of the universal coupling is prolonged;

2. the limiting ring, the limiting block and the pressing sleeve are arranged, so that the rubber sheath is fixed on the spline shaft more stably;

3. the fixing ring, the fixing groove and the fixing hoop are matched with each other, so that the rubber sheath is fixed on the bell-shaped shell more stably.

Drawings

Fig. 1 is a schematic structural diagram of the middle synchronous universal coupling of the present invention.

FIG. 2 is a schematic structural view of the rubber boot, the spline shaft, and the outer race.

FIG. 3 is a schematic sectional view of the spline shaft and the rubber boot.

Fig. 4 is an enlarged schematic view of the a-portion limiting ring, the limiting block and the pressing sleeve in fig. 3.

Fig. 5 is an exploded view of the compression sleeve.

Fig. 6 is a schematic structural view of the outer race, the rubber boot, and the retainer clip.

Fig. 7 is a schematic cross-sectional view of an outer shell, rubber boot.

Fig. 8 is an enlarged view of the bell housing, the fixing ring and the fixing post of the portion B of fig. 7.

In the figure, 1, spline shaft; 2. a bell housing; 3. a rubber sheath; 4. a fixing ring; 5. fixing the groove; 6. a limiting ring; 7. a limiting block; 8. a compression sleeve; 9. a threaded portion; 10. a projecting ring; 11. a clamping groove; 12. a grip bar; 13. a first snap ring; 14. a second snap ring; 15. a clamping block; 16. a clamping hole; 17. a butting block; 18. fixing a column; 19. a fixing hole; 20. anti-skid convex strips; 21. and fixing the clamp.

Detailed Description

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

Referring to fig. 1 and 2, a synchronous universal coupling disclosed by the present invention comprises a spline shaft 1 and bell housings 2 rotatably connected to two ends of the spline shaft 1; in order to prevent the joint of the outer shell 2 and the spline shaft 1 from being corroded by impurities such as rainwater or dust, a rubber sheath 3 is detachably mounted at the joint of the spline shaft 1 and the outer shell 2, one end of the rubber sheath 3 is fixed on the spline shaft 1, and the other end of the rubber sheath 3 is fixed on the outer shell 2 and used for protecting the joint of the spline shaft 1 and the outer shell 2; the rubber sheath 3 is a hollow cylindrical structure made of rubber material and has certain telescopic and deformable characteristics; the middle part of the rubber sheath 3 is arranged in a wave shape; when the spline shaft 1 and the bell-shaped shell 2 form a certain included angle, the rubber sheath 3 can also freely stretch and retract, and the movement of the bell-shaped shell 2 and the spline shaft 1 is not interfered.

Referring to fig. 3 and 4, a limiting ring 6 is integrally arranged at one end of the rubber sheath 3 close to the spline shaft 1, and the limiting ring 6 is formed by folding the rubber sheath 3 in the direction of the spline shaft 1; a limiting block 7 which is abutted against the inner side of the limiting ring 6 for limiting is integrally arranged on the spline shaft 1, and the limiting block 7 is formed in a disc shape; during actual installation, the rubber sheath 3 is sleeved at one end, close to the bell-shaped shell 2, of the spline shaft 1, the limiting ring 6 on the rubber sheath 3 penetrates through the limiting block 7, and the limiting ring 6 is covered on the limiting block 7, so that the rubber sheath 3 is not easy to fall off from the spline shaft 1 due to the limiting effect of the limiting ring 6 and the limiting block 7.

In addition, for further improving the stability that rubber sheath 3 is fixed on integral

key shaft

1, 1 screw-thread fit of integral key shaft has the pressing sleeve 8 of contradicting with spacing ring 6, and pressing sleeve 8 is the cavity tubular structure that the plastics material was made, offers on the integral key shaft 1 with pressing sleeve 8 screw-thread fit's screw thread portion 9. In actual installation, after the spacing ring 6 covers and establishes on stopper 7, through rotating pressing sleeve 8 on integral key shaft 1 for pressing sleeve 8 compresses tightly spacing ring 6 and is difficult for droing on stopper 7, thereby further improves rubber sheath 3 and installs and be difficult for droing on integral key shaft 1.

A protruding ring 10 is integrally arranged on one side, close to the limiting block 7, of the pressing sleeve 8, and the protruding ring 10 extends out towards the limiting block 7; the limiting block 7 is provided with a clamping groove 11 for inserting and clamping the projecting ring 10; bulge loop 10 and joint groove 11 mutually support, when pressing tightly cover 8 and compress tightly spacing ring 6 on stopper 7, the effort of bulge loop 10 is used in spacing ring 6 and with 6 tops of spacing ring to stopper 7 in joint groove 11 to make 6 conflicts on stopper 7 be difficult for droing more, further improve the stability of 3 installations to integral key shaft 1 of rubber sheath.

Referring to fig. 5, since the diameters of the two ends of the spline shaft 1 are larger than the diameter of the middle part of the spline shaft 1, the cylindrical pressing sleeve 8 cannot be directly sleeved on the spline shaft 1, and the spline sleeve is fixedly arranged into two semicircular first clamping rings 13 and second clamping rings 14; first joint ring 13 and second joint ring 14 are made of plastic material, and are provided with joint piece 15 at first joint ring 13 both ends an organic whole, and joint piece 15 is the rectangle setting in this embodiment, and second joint ring 14 both ends are seted up and are supplied joint piece 15 joint and with joint piece 15 one-to-one's joint hole 16. The clamping blocks 15 on the first clamping ring 13 are inserted into the clamping holes 16 on the second clamping ring 14, so that the first clamping ring 13 and the second clamping ring 14 can be spliced into the circular pressing sleeve 8; after the clamping block 15 is inserted into the clamping hole 16, a certain gap is formed between the clamping block 15 and the clamping hole 16, and a plurality of round convex point-shaped abutting blocks 17 are integrally arranged on the side wall of the clamping block 15 abutting against the side wall of the clamping hole 16; insert the joint after in joint hole 16 when joint piece 15, certain deformation can take place for butt piece 17 receives the extrusion, butt piece 17 joint after the deformation is in the gap between joint piece 15 and the joint hole 16, improve the damping between joint piece 15 and the joint hole 16, thereby make joint piece 15 be difficult for coming off from joint hole 16, improve the stability in joint piece 15 joint to joint hole 16, thereby improve the stability of first joint ring 13 and the installation of second joint ring 14.

A plurality of holding strips 12 are integrally arranged on the outer side walls of the first clamping ring 13 and the second clamping ring 14, the holding strips 12 are arranged, the friction force of the hand of an operator, the first clamping ring 13 and the outer side wall of the second clamping ring 14 is increased, and therefore the clamping ring is not easy to slip when the clamping sleeve 8 rotates and is better applied.

Referring to fig. 6 and 7, in order to fix the rubber sheath 3 on the outer shell 2, a fixing ring 4 sleeved on the shell of the outer shell 2 is integrally arranged at one end of the rubber sheath 3 close to the outer shell 2, and the fixing ring 4 extends out in a direction away from the spline shaft 1; be provided with fixed clamp 21 on the bell housing 2, through the fastening effect of fixed clamp 21, will fix the solid fixed ring and cramp on the bell housing 2 casing, improve the solid fixed ring 4 and install the stability on bell housing 2.

Referring to fig. 7 and 8, in order to further improve the stability of the fixing ring 4 mounted on the outer shell 2, a fixing groove 5 for the fixing ring 4 to be sleeved is formed in the outer shell 2, and during actual mounting, the fixing clamp 21 clamps the fixing ring 4 in the fixing groove 5; one side of the fixing ring 4 close to the bottom of the fixing groove 5 is integrally provided with a plurality of fixing columns 18, and the fixing columns 18 are cylindrical columns extending towards the direction of the fixing groove 5. The bell housing 2 is provided with a plurality of fixing holes 19 for inserting the fixing posts 18 and communicating with the fixing grooves 5, and the fixing holes 19 and the fixing posts 18 are arranged in a one-to-one correspondence manner. When the fixing ring 4 is embedded in the fixing groove 5, the fixing posts 18 are aligned with the fixing holes 19, and the fixing posts 18 are inserted into the fixing holes 19, so that the stability of embedding the fixing ring 4 in the fixing groove 5 is improved.

A plurality of anti-skid convex strips 20 are integrally arranged on one side of the fixing column 18, which is abutted against the side wall of the fixing hole 19. The arrangement of the anti-slip convex strips 20 improves the damping of the insertion of the fixing posts 18 into the fixing holes 19, thereby further improving the stability of the fixing ring 4 embedded in the fixing groove 5.

The implementation principle of the embodiment is as follows: during actual installation, the rubber sheath 3 is sleeved on the spline shaft 1, the limiting ring 6 is pressed to the limiting block 7 through the pressing sleeve 8, and the spline shaft 1 is connected with the bell-shaped shell 2. The fixing ring 4 is embedded in the fixing groove 5 after left, and the fixing ring 4 is fixed in the fixing groove 5 by the fixing hoop 21.

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 synchronous universal joint of ball cage formula, includes integral key shaft (1), rotates and connects bell shell (2) at integral key shaft (1) both ends, its characterized in that: the spline shaft (1) is detachably provided with a rubber sheath (3), and one end, far away from the spline shaft (1), of the rubber sheath (3) is detachably connected to the bell-shaped shell (2);

the utility model discloses a spline shaft, including rubber sheath (3), fixed ring (4), limit ring (6), fixed ring (5), rubber sheath (3) and spline shaft (1), the one end an organic whole that is close to bell shell (2) is provided with fixed ring (4), set up on bell shell (2) and supply fixed ring (4) to overlap fixed recess (5) of establishing, the one end an organic whole that rubber sheath (3) is close to spline shaft (1) is provided with spacing ring (6), an organic whole is provided with spacing stopper (7) of contradicting with spacing ring (6) spacing on spline shaft (1), be provided with on spline shaft (1) and compress tightly cover (8) screw thread portion (9) of screw-thread fit with compressing tightly cover (8).

2. A rzeppa synchronous universal coupling according to claim 1, characterized in that: one side of compressing tightly cover (8) and being close to stopper (7) an organic whole is provided with bulge loop (10), offer joint groove (11) that supply bulge loop (10) to insert the joint on stopper (7).

3. A rzeppa synchronous universal coupling according to claim 1, characterized in that: the outer side wall of the pressing sleeve (8) is integrally provided with a plurality of holding strips (12).

4. A rzeppa synchronous universal coupling according to claim 1, characterized in that: the clamping sleeve (8) comprises a first clamping ring (13) and a second clamping ring (14), wherein clamping blocks (15) are integrally arranged at two ends of the first clamping ring (13), and clamping holes (16) which are used for clamping the clamping blocks (15) and correspond to the clamping blocks (15) one by one are formed in two ends of the second clamping ring (14).

5. A rzeppa synchronous universal coupling according to claim 4, characterized in that: a plurality of abutting blocks (17) are integrally arranged at one end, far away from the first clamping ring (13), of the clamping block (15).

6. A rzeppa synchronous universal coupling according to claim 1, characterized in that: a plurality of fixing columns (18) are integrally arranged on one side, close to the bottom of the fixing groove (5), of the fixing ring (4), a plurality of fixing holes (19) for the fixing columns (18) to be inserted into and communicated with the fixing groove (5) are formed in the bell-shaped shell (2), and the fixing holes (19) and the fixing columns (18) are arranged in a one-to-one correspondence mode.

7. A rzeppa synchronous universal coupling according to claim 6, wherein: a plurality of anti-skid convex strips (20) are integrally arranged on one side of the fixing column (18) abutting against the side wall of the fixing hole (19).

8. A rzeppa synchronous universal coupling according to claim 7, wherein: the outer shell (2) is provided with a fixing clamp (21), and the fixing clamp (21) fixes the fixing ring (4) into the fixing groove (5).