CN215567446U

CN215567446U - Connecting device for universal transmission shaft

Info

Publication number: CN215567446U
Application number: CN202121691734.0U
Authority: CN
Inventors: 陈珂; 陈宗学
Original assignee: Qingdao Qianyan Machinery Co ltd
Current assignee: Qingdao Qianyan Machinery Co ltd
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2022-01-18
Anticipated expiration: 2031-07-24

Abstract

The utility model provides a connecting device for a universal transmission shaft, which comprises two universal joint forks, wherein shaft holes are respectively formed in the two symmetrical ends of each universal joint fork, a bearing is inserted in each shaft hole in a sliding manner, a snap ring is installed on each bearing, a sleeve and a transmission shaft are respectively arranged on the outer side of each universal joint fork, one end, positioned on the inner side of each universal joint fork, of each bearing is rotatably connected with a cross shaft, a fixed rod is arranged in the middle of one end, close to the sleeve, of each universal joint fork, and a buffer piece is arranged at the top end of each fixed rod. Drive the push rod and slide in holding the pipe when rotating through the universal joint fork, the push rod of being convenient for extrudees piece and spring to provide elasticity in the opposite direction to the push rod, prevent that universal joint fork slew velocity from causing rigid collision destruction to another universal joint fork too fast, thereby improve whole universal drive shaft's stability, prolonged universal drive shaft's life.

Description

Connecting device for universal transmission shaft

Technical Field

The utility model relates to a connecting device for a universal transmission shaft, belonging to the field of universal transmission shafts.

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.

The existing universal transmission shaft is connected with two universal joint forks through a cross shaft, but when the universal joint forks rotate, the universal joint forks and another universal joint fork can generate rigid collision because of the excessively high rotating speed, the connection stability of the whole device is easily influenced, the service life of the universal transmission shaft is shortened, and therefore the connecting device for the universal transmission shaft is provided.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a universal joint yoke connecting device, and more particularly, to a universal joint yoke connecting device for a universal joint shaft, which is capable of preventing a hard collision of another universal joint yoke when a rotational speed of the universal joint yoke is too high, and increasing a service life of the universal joint shaft.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a connecting device for universal drive shaft, includes two universal joint forks, universal joint fork symmetry both ends all are equipped with the shaft hole, it has the bearing to slide in the shaft hole to peg graft, install the snap ring on the bearing, the universal joint fork outside is equipped with sleeve and transmission shaft respectively, the one end that the bearing is located universal joint fork inboard is rotated and is connected with the cross axle, the universal joint fork is close to telescopic one end middle part and is equipped with the dead lever, the dead lever top is equipped with the bolster.

Further, the bolster includes two push rods, two the push rod is fixed respectively in the symmetry both sides of dead lever, top and bottom both ends all are equipped with the jack on the cross axle, the one end that the dead lever was kept away from to the push rod slides in the jack and pegs graft, the one end that the jack is close to the transmission shaft is equipped with holds the pipe.

Furthermore, one end, far away from the jack, of the accommodating pipe is connected with a thread block in a threaded rotating mode, the thread block is located at one end, located on the inner side of the accommodating pipe, of the accommodating pipe and is provided with a spring, and an extrusion block is fixed to one end, far away from the thread block, of the spring.

Furthermore, the thread block is provided with a rotating block on the outer side of the accommodating pipe, and a plurality of bulges are arranged on the periphery of the rotating block in a circumferential array.

Further, the push rod and the accommodating pipe are both arranged to be of an arc-shaped structure, the push rod and the accommodating pipe are coaxial, the inner diameter of the accommodating pipe is consistent with the outer diameter of the push rod, and the push rod is connected with the accommodating pipe in a sliding mode.

Further, the springs are distributed in a bent mode in the accommodating pipe, and the top ends of the springs are located in the insertion holes.

The utility model has the beneficial effects that: drive the push rod and slide in holding intraductal when rotating through the universal joint fork, the push rod of being convenient for extrudees piece and spring, thereby provide elasticity in the opposite direction to the push rod, make the universal joint fork when slew velocity is very fast on the cross, also can extrude the spring through the push rod, make the spring cushion the universal joint fork, alleviate the slew velocity of universal joint fork, avoid universal joint fork and another universal joint fork direct contact simultaneously, prevent that the universal joint fork slew velocity from causing rigid collision to another universal joint fork when too fast, thereby improve whole universal drive shaft's stability, universal drive shaft's life has been prolonged.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a coupling device for a universal drive shaft according to the present invention;

FIG. 2 is a top view of a coupling device for a universal drive shaft according to the present invention;

FIG. 3 is a schematic view of a cross shaft in a connecting device for a universal drive shaft according to the present invention;

FIG. 4 is a schematic view of a screw block of a connecting device for a universal drive shaft according to the present invention;

fig. 5 is an enlarged view of a portion a in fig. 1.

In the figure: 1-a universal joint yoke; 2-shaft hole; 3-a bearing; 4-a snap ring; 5-a sleeve; 6-a transmission shaft; 7-a cross shaft; 8-fixing the rod; 9-a push rod; 10-a jack; 11-accommodating a tube; 12-a thread block; 13-a spring; 14-an extrusion block; 15-turning the block; 16-projection.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution for a connecting device of a universal transmission shaft: the utility model provides a connecting device for universal drive shaft, including two universal

joint forks

1, 1 symmetry both ends of universal joint fork all are equipped with shaft hole 2, it has bearing 3 to slide in the shaft hole 2 and peg graft, install snap ring 4 on the

bearing

3, 1 outside of universal joint fork is equipped with sleeve 5 and transmission shaft 6 respectively, bearing 3 is located the one end rotation of 1 inboard of universal joint fork and is connected with cross 7, universal joint fork 1 is close to the one end middle part of sleeve 5 and is equipped with dead lever 8, the symmetry both ends all are equipped with push rod 9 on the dead lever 8, it is fixed to peg graft in 2 in shaft hole through bearing 3, be convenient for rotate cross 7 and universal joint fork 1 and be connected, through dead lever 8, be convenient for play the fixed stay effect to push rod 9.

Two push rods 9 are fixed respectively in the symmetry both sides of dead lever 8, and top and bottom both ends all are equipped with jack 10 on the cross 7, and the one end that dead lever 8 was kept away from to push rod 9 slides in jack 10 and pegs graft, and the one end that jack 10 is close to transmission shaft 6 is equipped with holds pipe 11, slides in jack 10 through push rod 9 and pegs graft, is convenient for restrict the relative position of push rod 9 and cross 7, through holding pipe 11, is convenient for peg graft push rod 9.

Push rod 9 and hold pipe 11 and all establish to the arc structure, and push rod 9 and hold pipe 11 and be coaxial, hold the internal diameter of pipe 11 and establish to unanimous with push rod 9 external diameter, and push rod 9 is holding intraductal sliding connection, through the push rod 9 of arc structure with hold pipe 11, when the universal joint fork 1 of being convenient for rotates on cross 7, drive push rod 9 and slide holding intraductal 11.

The screw thread of one end of the accommodating pipe 11 far away from the jack 10 is rotatably connected with a screw thread block 12, the screw thread block 12 is located at one end of the inner side of the accommodating pipe 11, a spring 13 is installed at one end of the spring 13 far away from the screw thread block 12, the screw thread block 12 is rotatably connected with the accommodating pipe 11 through the screw thread block 12, the screw thread block 12 is conveniently fixed at the bottom of the accommodating pipe 11, the spring 13 is located in the inner cavity of the accommodating pipe 11, the outer side of the screw thread block 12 located in the accommodating pipe 11 is provided with a rotating block 15, a plurality of protrusions 16 are arranged on the periphery of the rotating block 15 in a circumferential array mode, the screw thread block 12 is conveniently screwed into the accommodating pipe 11 through the rotation of the rotating block 15, and the protrusions 16 are convenient for increasing the friction force of the rotating block 15 and facilitating the rotation of the rotating block 15.

Spring 13 is in holding pipe 11 internal bending and distributing, and spring 13 top is located jack 10, lies in jack 10 through spring 13 top, when being convenient for push rod 9 slips into and holds pipe 11, extrudees extrusion piece 14 for spring 13 plays the thrust to push rod 9, prevents that universal joint fork 1 from rotating excessively to cause hard wearing and tearing to another universal joint fork 1.

The specific implementation mode is as follows: firstly, the cross shaft 7 is placed between the universal joint forks 1, then the bearing 3 is inserted and fixed in the shaft hole 2, so that the two ends of the universal joint fork 1 are respectively rotatably connected with the bearing 3, the bearing 3 is fixed in the shaft hole 2 through the clamping ring 4, the bearing 3 is prevented from sliding out of the shaft hole 2, one end of the push rod 9, far away from the fixed rod 8, is in sliding connection in the insertion hole 10, the rotating block 15 is screwed, the thread block 12 is enabled to rotate into the accommodating pipe 11, so that the spring 13 and the pressing block 14 are placed in the accommodating tube 11, and when the yoke 1 is rotated, the top of the push rod 9 slides into the accommodating tube 11, simultaneously push rod 9 top extrudees extrusion piece 14 for spring 13 carries out reverse thrust, prevents to cause the collision to another universal joint fork 1 when universal joint fork 1 slew velocity is too fast, thereby guarantees the stability of whole device, improves universal drive shaft 6's life.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a connecting device for universal drive shaft, includes two universal joint forks (1), universal joint fork (1) symmetry both ends all are equipped with shaft hole (2), it has bearing (3) to slide in shaft hole (2) and peg graft, install snap ring (4) on bearing (3), the universal joint fork (1) outside is equipped with sleeve (5) and transmission shaft (6) respectively, the one end that bearing (3) are located universal joint fork (1) inboard is rotated and is connected with cross (7), its characterized in that: the universal joint fork is characterized in that a fixing rod (8) is arranged in the middle of one end, close to the sleeve (5), of the universal joint fork (1), and a buffer piece is arranged at the top end of the fixing rod (8).

2. A connecting device for a universal drive shaft according to claim 1, wherein: the bolster includes two push rods (9), two the symmetry both sides at dead lever (8) are fixed respectively in push rod (9), top and bottom both ends all are equipped with jack (10) on cross (7), the one end that dead lever (8) were kept away from in push rod (9) slides in jack (10) and pegs graft, the one end that jack (10) are close to transmission shaft (6) is equipped with holds pipe (11).

3. A connecting device for a universal drive shaft according to claim 2, wherein: the one end screw thread that holds pipe (11) and keep away from jack (10) is rotated and is connected with screw block (12), screw block (12) are located hold pipe (11) inboard one end and install spring (13), the one end that screw block (12) were kept away from in spring (13) is fixed with extrusion piece (14).

4. A connecting device for a universal drive shaft according to claim 3, wherein: the thread block (12) is located on the outer side of the accommodating pipe (11) and is provided with a rotating block (15), and a plurality of bulges (16) are arrayed on the periphery of the rotating block (15) in a circumferential array mode.

5. A connecting device for a universal drive shaft according to claim 2, wherein: push rod (9) and hold pipe (11) and all establish to the arc structure, and push rod (9) and hold pipe (11) and be coaxial, the internal diameter that holds pipe (11) is established to unanimity with push rod (9) external diameter, and push rod (9) sliding connection in holding pipe (11).

6. A connecting device for a universal drive shaft according to claim 3, wherein: the springs (13) are distributed in the accommodating pipe (11) in a bending mode, and the top ends of the springs (13) are located in the insertion holes (10).