CN219865969U - Fracture-preventing universal joint fork assembly - Google Patents

Abstract

The utility model provides an anti-fracture universal joint fork assembly, which belongs to the technical field of transmission shafts and solves the problems of low degree of freedom and small torsion resistance of the conventional universal joint fork.

Description

Fracture-preventing universal joint fork assembly

Technical Field

The utility model belongs to the technical field of transmission shafts, relates to a universal joint fork, and particularly relates to an anti-fracture universal joint fork assembly.

Background

The universal driving device is used to transfer power between two shafts whose relative positions are continuously changed in the course of working, and its function is to connect transmission output shaft and main speed reducer input shaft which are not on the same straight line, and ensure that under the condition of frequent change of included angle and distance between two shafts, the power can be reliably transferred, and it is mainly formed from universal joint, driving shaft and intermediate support.

The universal joint comprises a cross shaft type, a ball cage type and a three-pivot type, wherein the universal joint fork of the traditional cross shaft type is connected together in a hard connection mode by adopting a fixed structure, and the universal joint comprises a cross shaft, two universal joint forks, a needle bearing and the like. The holes on the two universal joint forks are respectively and loosely sleeved on the two pairs of shaft necks of the cross shaft. In order to reduce friction loss and improve efficiency, the sleeve is fixed on the universal joint fork so as to prevent the bearing from falling out of the universal joint fork under the action of centrifugal force, thus when the driving shaft rotates, the driven shaft can rotate along with the bearing and can swing around the center of the cross shaft in any direction, and a needle bearing consisting of a needle roller and the sleeve is additionally arranged at the shaft neck of the cross shaft.

However, when the cross shaft type transmission shaft rotates, all parts can move along with the rotation of the transmission shaft and generate friction, when the transmission shaft transmits high torque instant power to the joint, the joint can generate high abrasion due to limited freedom degree, such as hidden injury at the joint, and accidents such as breakage and the like are easily coped with, so that structural damage is caused, and other parts in the machine are easily damaged.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a multi-degree-of-freedom fracture-preventing universal joint fork assembly.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a prevent universal joint fork subassembly that splits, its characterized in that, including two universal joint forks that symmetry set up, universal joint fork one end be equipped with fork ear, its other end is equipped with the link, the universal joint fork between be equipped with the connecting piece, the connecting piece on be equipped with two installation department, the installation department on be equipped with the mounting hole that supplies the link to install, fork ear on all connect and be provided with the external axle, the external epaxial installation face that all is equipped with two parallels that all is equipped with, and all be equipped with the connecting axle that the protrusion set up on this installation face.

In the anti-fracture universal joint fork assembly, the connecting shaft and the connecting end are respectively provided with a needle bearing.

In the anti-fracture universal joint fork assembly, the mounting parts are vertically distributed, connecting parts are arranged between the mounting parts, and the central axes of the connecting parts and the central axes of the external shafts are all in the same straight line. In the anti-fracture universal joint fork assembly, the external shaft is provided with the external connection part, and the external connection part is provided with the key groove.

Compared with the prior art, this prevent that universal joint fork subassembly of splitting increases its degree of freedom through setting up multiunit bearing, and when instantaneous moment of torsion was too big, through the bearing with each part select to turn reduce the power that each part received, prevent each part to lead to splitting because of the atress is too big, can restrict the rocking that reduces universal drive device at rotatory during operation production through the connecting portion, reduce the vibrations that it produced, this prevent that the universal joint fork subassembly of splitting wholly presents "bow" font structure, the inertia when increasing its rotation reaches energy saving and emission reduction's purpose, can also prevent the trouble that the part led to because of the card is dead.

Drawings

FIG. 1 is a schematic view of the structure of the present break-resistant yoke assembly.

Fig. 2 is a schematic structural view of the external shaft of the fracture-preventing yoke assembly.

FIG. 3 is a schematic view of the structure of the present fracture-resistant yoke assembly yoke.

FIG. 4 is a schematic structural view of the present break-resistant yoke assembly connector.

In the figure, 1, an external shaft; 2. a universal joint fork; 3. a connecting piece; 4. needle roller bearings; 5. an external connection part; 6. a key slot; 7. a mounting surface; 8. a connecting shaft; 9. a connection end; 10. fork ears; 11. a mounting part; 12. a mounting hole; 13. and a connecting part.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in figure 1, this prevent joint fork subassembly that breaks, including two universal joint fork 2 that symmetry set up, 2 one end of universal joint fork be equipped with fork ear 10, its other end is equipped with link 9, 2 internetworks be equipped with connecting piece 3, connecting piece 3 on be equipped with two installation department 11, installation department 11 on be equipped with the mounting hole 12 that supplies link 9 to install, fork ear 10 on all connect and be provided with external axle 1, external axle 1 on all be equipped with two parallel installation face 7, and all be equipped with the connecting axle 8 that the protrusion set up on this installation face 7, installation department 11 distributes towards axis one side, inertia when increasing universal drive rotation reaches energy saving and emission reduction's effect, can also prevent that the part from blocking.

Preferably, the connecting shaft 8 and the connecting end 9 are respectively provided with a needle bearing 4, and all the components are connected through the needle bearings 4, so that the smoothness and the torsional strength of the connecting shaft are ensured.

Preferably, the mounting portions 11 are vertically distributed, the connecting portions 13 are arranged between the mounting portions 11, the central axes of the connecting portions 13 and the central axes of the external shafts 1 are all in the same straight line, the external portions 5 are cylindrical, the stability of the universal transmission device during rotation can be stabilized by fixing and limiting the external portions 5, and vibration noise is reduced.

Preferably, the external connection shaft 1 is provided with an external connection part 5, the external connection part 5 is provided with a key groove 6, and the key groove 6 arranged on the external connection part 5 can be connected with most of transmission shafts, so that the application range of the external connection shaft is increased.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although terms such as the outer joint shaft 1, the universal joint fork 2, the connecting member 3, the needle bearing 4, the outer joint part 5, the key groove 6, the mounting surface 7, the connecting shaft 8, the connecting end 9, the fork lugs 10, the mounting part 11, the mounting hole 12, the connecting part 13, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (4)

1. The utility model provides a prevent universal joint fork subassembly that splits, a serial communication port, universal joint fork (2) including two symmetries settings, universal joint fork (2) one end be equipped with fork ear (10), its other end is equipped with link (9), universal joint fork (2) between be equipped with connecting piece (3), connecting piece (3) on be equipped with two installation department (11), installation department (11) on be equipped with mounting hole (12) that supply link (9) to install, fork ear (10) on all connect and be provided with external axle (1), external axle (1) on all be equipped with two parallel installation face (7), and all be equipped with connecting axle (8) that the protrusion set up on this installation face (7).

2. The anti-fracture universal joint fork assembly according to claim 1, wherein needle bearings (4) are arranged on the connecting shaft (8) and the connecting end (9).

3. The anti-fracture universal joint fork assembly according to claim 1, wherein the mounting portions (11) are vertically distributed, connecting portions (13) are arranged between the mounting portions (11), and the central axes of the connecting portions (13) are all in the same straight line with the central axis of the external connecting shaft (1).

4. The anti-fracture universal joint fork assembly according to claim 1, wherein the external connection shafts (1) are respectively provided with an external connection part (5), and the external connection parts (5) are provided with key grooves (6).