阅读说明：本技术 一种耐磨的商用车万向节叉 (Wear-resistant universal joint fork for commercial vehicle ) 是由 苏平 邓文军 王鹏 于 2019-09-26 设计创作，主要内容包括：本发明提供一种耐磨的商用车万向节叉,包括万向节叉和十字轴；所述万向节叉的前端活动连接十字轴的两根竖直轴杆。该装置万向节叉与十字轴的连接方式改为滚动连接,利用滚珠的滚动来穿传递动力,降低万向节叉与十字轴在转动时产生的摩擦力,延长万向节叉的使用寿命,解决了现有万向节叉与十字轴摩擦损耗严重的问题,储油腔内的锂基润滑脂会随运动时十字轴所产生的离心力向各个轴杆输送油脂,油脂会通过出油口向万向节叉和十字轴之间的滚珠提供油脂润滑,在工作时能够即时的为万向节叉和十字轴提供油脂润滑,解决了现有万向节叉与十字轴润滑措施不到位的问题,提高了该装置的适应性和实用性。(The invention provides a wear-resistant universal joint fork of a commercial vehicle, which comprises a universal joint fork and a cross shaft, wherein the cross shaft is connected with the universal joint fork; the front end of the universal joint fork is movably connected with two vertical shaft rods of the cross shaft. The device universal joint fork changes roll connection into with the connected mode of cross, the roll that utilizes the ball wears transmission power, reduce the frictional force that universal joint fork and cross produced when rotating, prolong the life of universal joint fork, the serious problem of current universal joint fork and cross friction loss has been solved, the produced centrifugal force of cross is to each axostylus axostyle grease when the lithium-based lubricating grease of oil storage intracavity can be along with the motion, the grease can provide the grease lubrication to the ball between universal joint fork and the cross through the oil-out, can be instant provide the grease lubrication for universal joint fork and cross at the during operation, the problem that current universal joint fork and cross lubrication measure do not target in place has been solved, the adaptability and the practicality of the device have been improved.)

1. The utility model provides a wear-resisting commercial car universal joint fork which characterized in that: the wear-resistant universal joint fork for the commercial vehicle comprises a universal joint fork (1), a dust plug (2), a cross shaft (3), a transmission shaft (4) and an oil injection pipe (5); the back of the universal joint fork (1) is fixedly connected to one end of a corresponding transmission device of the commercial vehicle, and the front end of the universal joint fork (1) is movably connected with two vertical shaft rods of the cross shaft (3); the dustproof plug (2) is screwed on the top surfaces of one ends of the four shaft levers of the cross shaft (3) through screws; the transmission shaft (4) is movably connected with two horizontal shaft rods of the cross shaft (3); the oil injection pipe (5) is fixedly connected to the top surface of the cross shaft (3), and the oil injection pipe (5) is communicated with the inside of the cross shaft (3); the end part of the oil filling pipe (5) is provided with a check device, the check device consists of a one-way plug (501) and a spring (502), and the one-way plug (501) penetrates through an installation body (503) at the end part of the oil filling pipe (5); the spring (502) is movably connected between the one-way plug (501) and the mounting body (503).

2. The wear resistant commercial vehicle yoke as recited in claim 1 wherein: semicircular grooves (101) are formed in fork holes of the universal joint fork (1) and the transmission shaft (4), and balls are arranged in the grooves (101).

3. The wear resistant commercial vehicle yoke as recited in claim 1 wherein: one end of the one-way plug (501) is provided with a closed pipeline, and through holes are formed in two sides of the closed end of the pipeline.

4. The wear resistant commercial vehicle yoke as recited in claim 1 wherein: an oil storage cavity (301) is formed in the cross shaft (3), an oil outlet (302) communicated with the oil storage cavity (301) is formed in the end portion of the shaft rod of the cross shaft (3), and 8 oil outlets (302) are formed in each shaft rod.

5. The wear resistant commercial vehicle yoke as recited in claim 1 wherein: the oil body in the oil storage cavity (301) is lithium-based lubricating grease.

Technical Field

The invention belongs to the technical field of automobile accessories, and particularly relates to a wear-resistant universal joint fork for a commercial vehicle.

Background

The universal joint is a part for realizing variable-angle power transmission, is used for changing the position of the direction of a transmission axis, is a joint part of a universal transmission device of an automobile driving system, and is called a universal joint transmission device by combining the universal joint and a transmission shaft.

If the application number is: in CN 201220648105.4's patent, a wear-resisting universal joint fork is disclosed, including the spindle nose, the universal joint jaw be connected with the spindle nose, universal joint jaw and spindle nose forge integratively, universal joint jaw tip has the prong, its characterized in that still lies in: the periphery of the circumference of the fork hole is provided with the wear-resistant layer, so that the universal joint fork with the structure has the advantages of wear resistance and long service life.

The existing universal joint fork and the cross shaft are in sliding connection, friction force generated by sliding is large, lubricating measures are not in place, abrasion consumption of the cross shaft and the universal joint fork is serious, stability between the cross shaft and a fixing hole of the universal joint fork is reduced due to long-term use, and faults are easy to occur.

In view of the above, the present invention provides a wear-resistant universal joint yoke for a commercial vehicle, which is improved in view of the existing structure and defects, so as to achieve the purpose of being more practical.

Disclosure of Invention

In order to solve the technical problems, the invention provides a wear-resistant universal joint yoke for a commercial vehicle, which aims to solve the problems that the existing universal joint yoke is in sliding connection with a cross shaft, the friction force generated by sliding is large, the lubricating measure is not in place, so that the wear consumption of the cross shaft and the universal joint yoke is serious, the stability between the cross shaft and a fixing hole of the universal joint yoke is reduced after long-term use, and the universal joint yoke is easy to break down.

The invention relates to a wear-resistant universal joint fork of a commercial vehicle, which is achieved by the following specific technical means:

a wear-resistant universal joint fork for a commercial vehicle comprises a universal joint fork, a dustproof plug, a cross shaft, a transmission shaft and an oil injection pipe; the back of the universal joint fork is fixedly connected to one end of a corresponding transmission device of the commercial vehicle, and the front end of the universal joint fork is movably connected with two vertical shaft rods of the cross shaft; the dustproof plug screws are screwed on the top surfaces of one ends of the four shaft levers of the cross shaft; the transmission shaft is movably connected with two horizontal shaft rods of the cross shaft; the oil injection pipe is fixedly connected to the top surface of the cross shaft, and the oil injection pipe is communicated with the inside of the cross shaft; the end part of the oil filling pipe is provided with a check device, the check device consists of a one-way plug and a spring, and the one-way plug penetrates through an installation body at the end part of the oil filling pipe; the spring is movably connected between the one-way plug and the mounting body.

Furthermore, semicircular grooves are formed in fork holes of the universal joint fork and the transmission shaft, and balls are arranged in the grooves.

Furthermore, one end of the one-way plug is internally provided with a closed pipeline, and through holes are formed in two sides of the closed end of the pipeline.

Furthermore, an oil storage cavity is formed in the cross shaft, an oil outlet communicated with the oil storage cavity is formed in the end portion of the shaft rod of the cross shaft, and 8 oil outlets are formed in each shaft rod.

Furthermore, the oil body in the oil storage cavity is lithium-based lubricating grease.

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

firstly, the connection mode of the universal joint fork and the cross shaft of the device is changed into rolling connection, power is transmitted by rolling of the balls, friction force generated when the universal joint fork and the cross shaft rotate is reduced, the service life of the universal joint fork is prolonged, the problem that the friction loss of the existing universal joint fork and the cross shaft is serious is solved, and the durability of the device is improved.

And secondly, the lithium-based lubricating grease is thickened grease with medium viscosity, has the characteristics of good water resistance, mechanical stability, rust resistance, oxidation stability and the like, and avoids unnecessary waste caused by leakage of the grease through an oil outlet while lubricating and maintaining the device.

Furthermore, the grease can be carried to each axostylus axostyle along with the produced centrifugal force of cross axle when the lithium base lubricating grease of oil storage intracavity can be along with the motion, the grease can provide the grease lubrication to the ball between universal joint fork and the cross axle through the oil-out, can be instant at the during operation provide the grease lubrication for universal joint fork and cross axle, perfect the lubrication measure between universal joint fork and the cross axle, solved the problem that current universal joint fork and cross axle lubrication measure do not target in place, improved the device's adaptability and practicality.

The design of the dustproof plug also avoids dust or gravel from entering the connecting part of the cross shaft and the universal joint fork to rub and damage the inner ball, the cross shaft and the universal joint fork, and further enhances the durability of the device in use.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic illustration of the split structure of the present invention.

Fig. 3 is a schematic view of the internal structure of the present invention.

Fig. 4 is a schematic view of the construction of the one-way plug of the present invention.

FIG. 5 is an enlarged schematic view of the portion A of the present invention.

FIG. 6 is an enlarged schematic view of the portion B of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a universal joint yoke; 2. a dust plug; 3. a cross shaft; 4. a drive shaft; 5. an oil filling pipe; 101. a groove; 301. an oil storage chamber; 302. an oil outlet; 501. a one-way plug; 502. a spring;

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.