CN212177698U - Three-fork rod sliding type universal coupling based on micro-texture technology - Google Patents

Abstract

The utility model discloses a trident rod sliding universal coupling based on micro-texture technology, which comprises: a sleeve input shaft, a sliding rod assembly, a trigeminal joint and an output shaft; the shaft side of the sleeve input shaft One involute spline is processed, and three evenly distributed sleeve holes are opened on the side of the sleeve; there are three sliding rod assemblies, which are respectively installed in the sleeve holes. The axis direction of the input shaft of the sleeve slides back and forth and is connected with the trident; the cylindrical surface of the sliding rod is machined with micro grooves along the axis; the trident is connected with the output shaft; The shaft has good lubrication performance, small friction loss, high transmission efficiency, stable operation and long service life, and during the working process, the micro groove can play a significant role in oil storage and accommodating wear particles, which is convenient for the sleeve hole and the Secondary lubrication between the main mating surfaces of the sliding rod.

Description

A Trifurcated Rod Sliding Universal Coupling Based on Microtexture Technology

technical field

The utility model relates to the field of couplings, in particular to a trident rod sliding type universal coupling based on micro-texture technology.

Background technique

At present, in the process of variable angle transmission between shafts of large mechanical equipment, universal couplings are generally used. Ordinary cross shaft type universal coupling and ball cage type universal coupling have low wear resistance, and they are seriously worn under long-term working conditions. With the gradual deepening of tribological research, many studies have shown that a non-smooth surface with a certain surface microtexture will show better wear resistance. In order to improve the lubricating performance more effectively and reduce the wear consumption of the coupling, a trigeminal rod sliding universal coupling based on micro-texture technology was designed and invented.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a trident rod sliding universal coupling based on micro-texture technology, which has good lubrication performance, small friction loss, high transmission efficiency, stable operation and long service life.

The scheme adopted by the utility model is as follows:

A trident rod sliding universal coupling based on microtexture technology, comprising: a sleeve input shaft, a sliding rod assembly, a trigeminal joint, and an output shaft; the shaft side of the sleeve input shaft is processed with an involute line Spline 1, there are 3 evenly distributed sleeve holes on the side of the sleeve, and 4 grooves are equally spaced in the sleeve hole along the axis direction; there are 3 sliding rod assemblies, which are respectively installed in the sleeve In the cylinder hole, the sliding rod assembly slides back and forth along the axis direction of the sleeve input shaft, and is connected with the trident; the sliding rod assembly includes a sliding rod and a joint bearing; the cylindrical surface of the sliding rod There are micro grooves along the axis direction; the circular holes of the sliding rods are processed with limiting bosses, and the joint bearings are installed in the circular holes; the sliding rods are respectively installed in the circular holes through the joint bearings. On the trident; the top of the trident is provided with three grooves, and corresponding three elastic snap springs are respectively installed in the three grooves; an inner rectangular spline is processed inside the trident, and the One end of the output shaft is machined with an outer rectangular spline, and the other end is machined with two involute splines; the inner rectangular spline is matched with the outer rectangular spline so that the trident is connected to the output shaft.

The beneficial effects that can be obtained by the trigeminal rod sliding universal coupling based on the micro-texture technology of the present utility model are:

1. Four grooves are equally spaced in the sleeve hole of the sleeve input shaft along the axis direction. On the one hand, it is convenient to store lubricant during operation. On the other hand, the sliding rod forms a converging wedge shape during the reciprocating movement in the sleeve hole. Clearance is conducive to the formation of dynamic pressure oil film.

2. The cylindrical surface of the sliding rod is machined with micro grooves along the axis direction. The micro grooves can play a significant role in storing oil and accommodating wear particles, which is convenient for the secondary lubrication between the sleeve hole and the main mating surface of the sliding rod. .

3. An elastic circlip is installed in the groove at the top of the trident to prevent the joint bearing from falling off the trident.

Description of drawings

Fig. 1: the utility model is a kind of three-pronged rod sliding type universal joint three-dimensional structure diagram based on micro-texture technology;

Fig. 2: A kind of trident rod sliding type universal coupling sleeve input shaft diagram based on micro-texture technology of the present utility model;

Fig. 3: A kind of trident rod sliding type universal coupling sliding rod assembly diagram based on micro-texture technology of the present utility model;

Figure 4: a cross-sectional view of the sliding rod of a trident rod sliding type universal coupling based on microtexture technology of the present utility model;

Fig. 5: a kind of trigeminal section diagram of the trident rod sliding type universal coupling based on micro-texture technology of the present utility model;

Figure 6: A diagram of the output shaft of the trident rod sliding universal joint based on the micro-texture technology of the present invention.

In the picture: 11- sleeve input shaft, 12- slide rod assembly, 13- trigeminal joint, 14- output shaft, 15- involute spline one, 16- involute spline two, 17- elastic snap ring, 21- Sleeve hole, 22- Groove, 31- Slide rod, 32- Joint bearing, 33- Micro groove, 34- Round hole, 41- Limit boss, 51- Internal rectangular spline, 52- Groove , 61-outer rectangular spline.

Detailed ways

The specific implementation of the present utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, 3, 4, 5, and 6, the present utility model is a trident rod sliding universal coupling based on microtexture technology, comprising: a sleeve input shaft 11 and a sliding rod assembly 12 , trigeminal section 13, output shaft 14; the shaft side of the sleeve input shaft 11 is machined with an involute spline 15, and the sleeve side is provided with three evenly distributed sleeve holes 21, the sleeve holes 21 There are four grooves 22 equidistantly distributed in the axial direction; there are three sliding rod assemblies 12, which are respectively installed in the sleeve holes 21, and the sliding rod assemblies 12 are along the axis of the sleeve input shaft 11 The sliding rod assembly 12 includes a sliding rod 31 and a joint bearing 32; the cylindrical surface of the sliding rod 31 is machined with micro grooves 33 along the axis direction; A limit boss 41 is machined in the circular hole 34 of the sliding rod 31 , and the joint bearing 32 is installed in the circular hole 34 ; the sliding rod 31 is respectively installed on the trident 13 through the joint bearing 32 . The top of the trident 13 is provided with three grooves 52, corresponding to which three elastic retaining springs 17 are respectively installed in the three grooves 52; the trident 13 is internally processed with an inner rectangular spline 51, One end of the output shaft 14 is machined with an outer rectangular spline 61, and the other end is machined with an involute spline 2 16; The output shaft 14 is connected.

As shown in Figures 1, 2, 3, 4, 5, and 6, the steps of a working method of a trident rod sliding universal joint based on microtexture technology of the present invention are as follows:

Lubricant is injected between the mating surfaces of the sleeve input shaft 11 and the sliding rod assembly 12 during installation, and the sliding rod assembly 12 connects the sleeve input shaft 11 and the trigeminal joint 13 and the output shaft 14 to connect. The power is input to the sleeve input shaft 11, and is transmitted to the trigeminal joint 13 and the output shaft 14 through the sliding rod assembly 12 to realize the transmission of torque and motion; during the working process, the sliding rod assembly 12 moves along the The axial direction of the sleeve input shaft 11 reciprocates sliding, and a wedge-shaped gap is established on the mating surface to form a dynamic pressure oil film; at the same time, during the reciprocating sliding of the sliding rod 31 in the axial direction, the The groove 33 further plays an obvious role in storing oil and accommodating wear particles, realizing the secondary lubrication between the sleeve hole 21 and the main mating surface of the sliding rod 31, improving the lubrication performance of the coupling during operation, reducing the wear and tear.

The protection scope of the present invention is not limited to this, any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

Claims (1)

1. a trigeminal rod sliding universal joint based on microtexture technology, is characterized in that: comprise sleeve input shaft, sliding rod assembly, trigeminal joint, output shaft; the shaft side of described sleeve input shaft Involute spline 1 is processed, three evenly distributed sleeve holes are opened on the sleeve side, and four grooves are equally spaced in the sleeve hole along the axis direction; the sliding rod assembly has three, respectively Installed in the sleeve hole, the sliding rod assembly slides back and forth along the axis direction of the input shaft of the sleeve, and is connected with the trigeminal joint; the sliding rod assembly includes a sliding rod and a joint bearing; the The cylindrical surface of the sliding rod is machined with micro grooves along the axis direction; the circular hole of the sliding rod is machined with a limit boss, and the joint bearing is installed in the circular hole; the sliding rod passes through the The joint bearings are respectively installed on the trigeminal joint; the top of the trigeminal joint is provided with three grooves, and corresponding three elastic circlips are respectively installed in the three grooves, and the interior of the trigeminal joint is processed with an inner rectangle Splines, one end of the output shaft is machined with an outer rectangular spline, and the other end is machined with an involute spline II; the inner rectangular spline is matched with the outer rectangular spline so that the trident and the output shaft are matched connect.

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