CN217736075U

CN217736075U - Transmission shaft constant velocity universal joint connection structure

Info

Publication number: CN217736075U
Application number: CN202221647172.4U
Authority: CN
Inventors: 于志丰; 段歌
Original assignee: Weihai Chentai Automation Technology Co ltd
Current assignee: Weihai Chentai Automation Technology Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-04
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a transmission shaft constant velocity universal joint connection structure, including the connecting rod, the mounting disc is installed respectively through the cross at the both ends of connecting rod, the connecting rod includes barrel and cylinder, the cylinder with the barrel is pegged graft, can drive is installed to the inner chamber of barrel the cylinder for the screw rod subassembly of barrel outside motion in order to change universal joint length, the drive assembly that can drive screw rod subassembly and go on moving and fix a position is installed to the inner chamber of barrel. Transmission shaft constant velocity universal joint connection structure, the connecting rod of universal joint includes barrel, cylinder, screw rod subassembly and drive assembly, can drive the cylinder through the rotation of screw rod and be the straight line to the motion to change the length of whole universal joint, convenient operation is simple, the rotary rod is located and is equipped with the hexagonal recess on the tip of barrel outer end, accessible allen key implements extrusion and rotatory operation to the rotary rod with the cooperation of hexagonal recess, is convenient for realize the regulation to universal joint length.

Description

Transmission shaft constant velocity universal joint connection structure

Technical Field

The utility model relates to a universal joint technical field, in particular to transmission shaft constant velocity universal joint connection structure.

Background

The universal joint is a universal joint, the English name of which is univarial joint, is a machine part for realizing variable-angle power transmission, is used for changing the position of the direction of a transmission axis, and is called a universal joint transmission device by combining the universal joint and a transmission shaft.

The length of the existing transmission shaft constant velocity universal joint can not be adjusted according to the distance between two installation shafts, and the application range of the existing transmission shaft constant velocity universal joint is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides transmission shaft constant velocity universal joint connection structure, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

transmission shaft constant velocity cardan joint connection structure, including the connecting rod, the mounting disc is installed respectively through the universal joint to the both ends of connecting rod, the connecting rod includes barrel and cylinder, the cylinder with the barrel is pegged graft, can drive is installed to the inner chamber of barrel the cylinder for the screw rod subassembly of barrel outward movement in order to change universal joint length, the drive assembly that can drive screw rod subassembly and move and fix a position is installed to the inner chamber of barrel.

Preferably, be the circumference on the cylindrical outer wall and be provided with a plurality of groups gag lever post and every group the gag lever post all slides and sets up in the spout that is equipped with on the barrel inner chamber wall, cylindrical axle center department is equipped with the screw thread chamber.

Preferably, the limiting rods are arranged into three groups, and the outer surfaces of the limiting rods are all arranged into smooth surfaces.

Preferably, the screw rod subassembly is including the fixed mounting panel that sets up at the barrel, it is provided with the screw rod to rotate on the mounting panel, the one end of screw rod is located the screw thread intracavity and rather than threaded connection, the other end inner chamber of screw rod is provided with the spline chamber.

Preferably, drive assembly is including the rotary rod that runs through the barrel, the one end of rotary rod is located spline intracavity and with spline fixed connection, the rotary rod is located fixed the cup jointing on the tip of barrel inner chamber and has just be equipped with the reference column on the disc, the reference column with it pegs graft to be a set of locating hole in a plurality of groups locating hole that the circumference was equipped with on the barrel inner chamber terminal surface, the disc with sliding conflict between the mounting panel has extrusion spring just extrusion spring cup joints on the rotary rod.

Preferably, the end part of the rotating rod, which is positioned at the outer end of the cylinder body, is provided with a hexagonal groove.

Preferably, the outer surface of the extrusion spring, the outer surface of the screw rod and the inner surface of the threaded cavity are provided with anti-corrosion coatings.

Compared with the prior art, the invention has the following beneficial effects:

1. the connecting rod of universal joint includes barrel, cylinder, screw rod subassembly and drive assembly, and the rotation through the screw rod can drive the cylinder and be the straight line to the motion to change the length of whole universal joint, convenient operation is simple.

2. The end part of the rotary rod, which is positioned at the outer end of the barrel body, is provided with a hexagonal groove, and the rotary rod can be extruded and rotated by matching an inner hexagonal wrench with the hexagonal groove, so that the length of the universal joint can be adjusted conveniently.

Drawings

Fig. 1 is an overall structure view of a constant velocity universal joint connection structure of a propeller shaft according to the present invention;

fig. 2 is a split view of the constant velocity universal joint connection structure of the transmission shaft of the present invention;

FIG. 3 is a partial front cross-sectional view of the structure of FIG. 1;

fig. 4 is a right side view of the cylinder body of the constant velocity universal joint connecting structure of the transmission shaft of the present invention.

In the figure: 1. a connecting rod; 2. a cylinder; 21. a limiting rod; 22. a threaded cavity; 3. mounting a disc; 4. a cross shaft; 5. a barrel; 6. a screw assembly; 61. a screw; 62. mounting a plate; 63. a spline cavity; 7. a drive assembly; 71. rotating the rod; 72. a disc; 73. a positioning column; 74. a compression spring; 75. a spline; 8. a hexagonal groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, the connection structure of the constant velocity universal joint of the transmission shaft comprises a connection rod 1, mounting discs 3 are respectively installed at two ends of the connection rod 1 through a cross shaft 4, the connection rod 1 comprises a cylinder body 5 and a cylinder 2, the cylinder 2 is inserted into the cylinder body 5, a screw assembly 6 capable of driving the cylinder 2 to move outwards relative to the cylinder body 5 so as to change the length of the universal joint is installed in an inner cavity of the cylinder body 5, and a driving assembly 7 capable of driving the screw assembly 6 to operate and position is installed in the inner cavity of the cylinder body 5.

The outer wall of the cylinder 2 is circumferentially provided with a plurality of groups of limiting rods 21, each group of limiting rods 21 is arranged in a sliding groove formed in the wall of the inner cavity of the cylinder 5 in a sliding manner, a threaded cavity 22 is formed in the axis of the cylinder 2, the screw assembly 6 comprises a mounting plate 62 fixedly arranged on the cylinder 5, a screw 61 is rotatably arranged on the mounting plate 62, one end of the screw 61 is positioned in the threaded cavity 22 and is in threaded connection with the threaded cavity, a spline cavity 63 is formed in the inner cavity at the other end of the screw 61, the driving assembly 7 comprises a rotating rod 71 penetrating through the cylinder 5, one end of the rotating rod 71 is positioned in the spline cavity 63 and is fixedly connected with a spline 75, the rotating rod 71 is positioned at the end of the inner cavity of the cylinder 5 and fixedly sleeved with a disc 72 and a positioning column 73 is arranged on the disc 72, the positioning column 73 is in insertion connection with a group of positioning holes formed in the end face of the inner cavity of the cylinder 5 in a circumferential manner, an extrusion spring 74 is slidably abutted between the disc 72 and the mounting plate 62, when the positioning column 71 is used, the positioning column 73 and the positioning rod 71 is moved out of the positioning hole, the screw 61 is driven to rotate, the screw 61 by the rotation of the screw 61, the rotation of the screw 21, thereby preventing the positioning column from being inserted into the rotation of the universal joint from being adjusted, and forming the whole positioning column, and the length of the universal joint, and preventing the screw 61 from being adjusted.

The gag lever post 21 sets up to three groups and the surface of every group gag lever post 21 all sets up to the smooth surface.

The end of the rotating rod 71 at the outer end of the barrel 5 is provided with a hexagonal groove 8, and the rotating rod 71 can be extruded and rotated by matching an inner hexagonal wrench with the hexagonal groove 8, so that the length of the universal joint can be adjusted conveniently.

The outer surface of the extrusion spring 74, the outer surface of the screw 61 and the inner surface of the threaded cavity 22 are all provided with anti-corrosion coatings, which can prevent each part from being corroded and rusted and prevent the parts from being incapable of operating.

It should be noted that, the utility model discloses a transmission shaft constant velocity universal joint connection structure, when using, the one end that the accessible was pressed rotary rod 71 makes reference column 73 rotate rotary rod 71 after going out the locating hole with the motion, utilize rotary rod 71 to drive screw rod 61 and rotate, rotation through screw rod 61 can drive cylinder 21 and be the straight line to the motion, thereby change the length of whole universal joint, adjust the back that finishes, elasticity through extrusion spring 74 makes reference column 73 peg graft with the locating hole, can form the location to screw rod 61, avoid it to take place the rotation, rotary rod 71 is located and is equipped with hexagonal groove 8 on the tip of barrel 5 outer end, accessible allen key implements extrusion and rotatory operation to rotary rod 71 with hexagonal groove 8's cooperation, be convenient for realize the regulation to universal joint length.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Transmission shaft constant velocity cardan joint connection structure, including connecting rod (1), mounting disc (3), its characterized in that are installed respectively through cross axle (4) at the both ends of connecting rod (1): connecting rod (1) includes barrel (5) and cylinder (2), cylinder (2) with barrel (5) are pegged graft, the inner chamber of barrel (5) is installed and is driven cylinder (2) for screw rod set spare (6) of barrel (5) outside motion in order to change universal joint length, drive assembly (7) that can drive screw rod set spare (6) and move and fix a position are installed to the inner chamber of barrel (5).

2. The propeller shaft constant velocity joint connection structure according to claim 1, wherein: be the circumference on the outer wall of cylinder (2) and be provided with a plurality of groups gag lever post (21) and every group gag lever post (21) all slides and sets up in the spout that is equipped with on barrel (5) inner chamber wall, the axle center department of cylinder (2) is equipped with screw thread chamber (22).

3. The propeller shaft constant velocity joint connection structure according to claim 2, wherein: the limiting rods (21) are arranged into three groups and each group, and the outer surfaces of the limiting rods (21) are all arranged into smooth surfaces.

4. The propeller shaft constant velocity joint connection structure according to claim 2, wherein: screw rod subassembly (6) are including fixed mounting panel (62) that set up in barrel (5), it is provided with screw rod (61) to rotate on mounting panel (62), the one end of screw rod (61) is located screw cavity (22) and rather than threaded connection, the other end inner chamber of screw rod (61) is provided with spline chamber (63).

5. The propeller shaft constant velocity joint connection structure according to claim 4, wherein: drive assembly (7) is including rotating rod (71) that runs through barrel (5), the one end of rotating rod (71) is located in spline chamber (63) and with spline (75) fixed connection, fixed cover is connected just to disc (72) on the tip that rotating rod (71) are located barrel (5) inner chamber be equipped with reference column (73) on disc (72), reference column (73) with it pegs graft to be a set of locating hole in a plurality of groups locating hole that the circumference was equipped with on barrel (5) inner chamber terminal surface, disc (72) with sliding conflict has extrusion spring (74) just between mounting panel (62) extrusion spring (74) cup joints on rotating rod (71).

6. The propeller shaft constant velocity joint connection structure according to claim 5, wherein: the end part of the rotary rod (71) positioned at the outer end of the barrel body (5) is provided with a hexagonal groove (8).

7. The propeller shaft constant velocity universal joint connection structure according to claim 4, wherein: the outer surface of the extrusion spring (74), the outer surface of the screw rod (61) and the inner surface of the thread cavity (22) are all provided with anticorrosive coatings.