CN215980525U - Universal joint cross - Google Patents

Abstract

The utility model provides a universal joint cross, comprising: a cross shaft body; the sealing element comprises a hard framework positioning ring, and a flexible sealing ring is fixedly arranged on the inner ring of the framework positioning ring; the flexible sealing ring is sleeved on the cross shaft body and is in interference fit with the cross shaft body; the bearing is fixedly sleeved on the cross shaft body and is positioned outside the sealing element; and the bearing sleeve is fixedly connected to the cross shaft body and sleeved outside the bearing and the framework positioning ring, and the framework positioning ring and the bearing sleeve are in interference fit. The sealing member comprises the flexible sealing washer of the skeleton holding ring that fixed connection is in the same place and inner circle, fixes a position and seals at the outer lane through the skeleton holding ring of stereoplasm, avoids crooked for wearing and tearing are even, seals the cross axle body at the inner circle through flexible sealing washer again, makes lubricating oil be difficult for spilling along the axle, is fit for the use scene of high, low rotational speed.

Description

Universal joint cross

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of universal couplings, in particular to a cross shaft of a universal coupling.

[ background of the utility model ]

In the existing universal coupling, a bearing at a cross shaft of the universal coupling generally adopts the following two sealing modes: the sealing ring made of plastic has the advantages of being suitable for scenes with high or low rotating speed, and has the defects that the sealing ring made of plastic is not uniform in abrasion due to the fact that the sealing ring is soft and poor in positioning effect and is prone to being inclined, one side of the sealing ring is tight, the other side of the sealing ring is loose, and oil leakage is prone to occurring on the loose side after the sealing ring is used for a period of time.

The second is to adopt the metal seal, as application No. 201220576029.0, disclose the slide bearing cross-shaped packet of the universal joint of the whole fork cross-axle type specifically, its advantage is because the metal seal is its quality is hard, position effectually, difficult to deflect, wear out evenly; the bearing has the advantages that the bearing is only suitable for application scenes with high rotating speed, and when the rotating speed is reduced, the phenomenon that oil leaks because the centrifugal force is insufficient, the lubrication in the bearing cannot be thrown onto the circumferential wall and easily flows out along the cross shaft at the center easily occurs.

[ Utility model ] content

The utility model aims to solve the technical problem of providing a universal coupling cross shaft, wherein a sealing element of the universal coupling cross shaft consists of a skeleton positioning ring and a flexible sealing ring of an inner ring, the outer ring is positioned and sealed by the hard skeleton positioning ring, deflection is avoided, abrasion is uniform, the inner ring is sealed by the flexible sealing ring, and the universal coupling cross shaft is suitable for use scenes with high and low rotating speeds.

The utility model is realized by the following steps: a cross-shaft of a universal coupling, comprising:

a cross shaft body;

the sealing element comprises a hard framework positioning ring, and a flexible sealing ring is fixedly arranged on the inner ring of the framework positioning ring; the flexible sealing ring is sleeved on the cross shaft body and is in interference fit with the cross shaft body;

the bearing is fixedly sleeved on the cross shaft body and is positioned outside the sealing element;

and the bearing sleeve is fixedly connected to the cross shaft body and sleeved outside the bearing and the framework positioning ring, and the framework positioning ring and the bearing sleeve are in interference fit.

Further, skeleton holding ring and flexible sealing washer formula as an organic whole.

Further, the device also comprises a bolt;

a first threaded hole is formed in the center of the shaft end of the cross shaft body;

a second threaded hole is formed in the center of the outer side of the bearing sleeve;

the bolt is firstly locked into the second threaded hole and then locked into the first threaded hole.

Furthermore, the skeleton positioning ring is made of metal, and the flexible sealing ring is made of plastic.

The utility model has the advantages that: a cross-shaft of a universal coupling, comprising: a cross shaft body; the sealing element comprises a hard framework positioning ring, and a flexible sealing ring is fixedly arranged on the inner ring of the framework positioning ring; the flexible sealing ring is sleeved on the cross shaft body and is in interference fit with the cross shaft body; the bearing is fixedly sleeved on the cross shaft body and is positioned outside the sealing element; and the bearing sleeve is fixedly connected to the cross shaft body and sleeved outside the bearing and the framework positioning ring, and the framework positioning ring and the bearing sleeve are in interference fit. The sealing member comprises the flexible sealing washer of the skeleton holding ring that fixed connection is in the same place and inner circle, fixes a position and seals at the outer lane through the skeleton holding ring of stereoplasm, avoids crooked for wearing and tearing are even, seals the cross axle body at the inner circle through flexible sealing washer again, makes lubricating oil be difficult for spilling along the axle, is fit for the use scene of high, low rotational speed.

[ description of the drawings ]

The utility model will be further described with reference to the following examples with reference to the accompanying drawings.

FIG. 1 is a schematic view of a cross shaft according to the present invention.

Description of reference numerals:

the cross shaft body 1, the first threaded hole 11,

a sealing element 2, a skeleton positioning ring 21 and a flexible sealing ring 22;

a bearing 3;

the bearing sleeve 4, a second threaded hole 41, a large hole 42 and a small hole 43;

and a bolt 5.

[ detailed description ] embodiments

In the description of the present invention, it is to be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The general concept of the utility model is as follows:

(1) sealing member 2 comprises the skeleton holding ring 21 of the stereoplasm that fixed connection is in the same place and the flexible sealing washer 22 of inner circle, fixes a position and seal at the outer lane through the skeleton holding ring 21 of stereoplasm, avoids taking place radial skew, ensures that wearing and tearing are even, seals cross shaft body 1 through flexible sealing washer 22 again at the inner circle for lubricating oil is difficult to spill along the axle, is fit for the use scene of high, low rotational speed.

Please refer to fig. 1.

A cross-shaft of a universal coupling, comprising:

a cross shaft body 1;

the sealing element 2 comprises a hard framework positioning ring 21, and a flexible sealing ring 22 is fixedly arranged on the inner ring of the framework positioning ring 21; the flexible sealing ring 22 is sleeved on the cross shaft body 1 and is in interference fit, namely, each section of shaft of the cross shaft body 1 is sleeved with the flexible sealing ring 22; the inner ring seals the cross shaft body 1 through the flexible sealing ring 22, so that lubricating oil is not easy to leak out along the shaft.

The bearing 3 is fixedly sleeved on the cross shaft body 1 and is positioned outside the sealing element 2, namely, the bearing 3 is sleeved on each section of shaft of the cross shaft body 1;

bearing housing 4, fixed connection in cross body 1, and the cover is in outside bearing 3 and skeleton holding ring 21, skeleton holding ring 21 and bearing housing 4 adopt interference fit, and every section axle of cross body 1 all overlaps promptly has bearing housing 4 for live bearing housing 4, and storage lubricating oil, sealing member 2 then seals up the lubricating oil in bearing housing 4. The hard framework positioning ring 21 is used for positioning and sealing the outer ring, so that radial deflection is avoided, and uniform abrasion is ensured.

The skeleton positioning ring 21 and the flexible sealing ring 22 are integrated.

Also comprises a bolt 5;

a first threaded hole 11 is formed in the center of the shaft end of the cross shaft body 1;

a second threaded hole 41 is formed in the center of the outer side of the bearing sleeve 4;

the bolt 5 is first locked into the second threaded hole 41 and then into the first threaded hole 11, thereby fixing the bearing sleeve 4 to the cross shaft body 1.

In a specific embodiment, the inner end of the bearing sleeve 4 is open, and the center of the outer end is provided with the second threaded hole 41; the inner cavity of the bearing sleeve 4 is a step-shaped big hole 42 and a small hole 43, and the big hole 42 is positioned at the open end; the big hole 42 is used for embedding the framework positioning ring 21, and the small hole 43 is used for embedding the bearing 3. The stair-like shape can enhance the sealing performance and limit the skeleton positioning ring 21.

The skeleton positioning ring 21 is made of metal, and the flexible sealing ring is made of plastic.

Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.

Claims (4)

1. A universal joint cross characterized in that: the method comprises the following steps:

a cross shaft body;

the sealing element comprises a hard framework positioning ring, and a flexible sealing ring is fixedly arranged on the inner ring of the framework positioning ring; the flexible sealing ring is sleeved on the cross shaft body and is in interference fit with the cross shaft body;

the bearing is fixedly sleeved on the cross shaft body and is positioned outside the sealing element;

and the bearing sleeve is fixedly connected to the cross shaft body and sleeved outside the bearing and the framework positioning ring, and the framework positioning ring and the bearing sleeve are in interference fit.

2. The cross of a universal joint as set forth in claim 1, wherein: the framework positioning ring and the flexible sealing ring are integrated.

3. The cross of a universal joint as set forth in claim 1, wherein: the bolt is also included;

a first threaded hole is formed in the center of the shaft end of the cross shaft body;

a second threaded hole is formed in the center of the outer side of the bearing sleeve;

the bolt is firstly locked into the second threaded hole and then locked into the first threaded hole.

4. The cross of a universal joint as set forth in claim 1, wherein: the framework positioning ring is made of metal, and the flexible sealing ring is made of plastic.

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