CN114017569A

CN114017569A - Rotating shaft assembly and high-speed rotating joint thereof

Info

Publication number: CN114017569A
Application number: CN202111403903.0A
Authority: CN
Inventors: 赵亮; 赵欣悦; 赵嘉赫
Original assignee: Tianqi Industrial Automation Co ltd
Current assignee: Tianqi Industrial Automation Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-02-08

Abstract

The invention relates to a rotating shaft assembly which comprises a rotating shaft and a connecting piece sleeved outside the rotating shaft, wherein an air inlet hole and an air outlet hole are formed in the rotating shaft, a communicating hole corresponding to the air inlet hole and the air outlet hole is formed in the connecting piece, the rotating shaft comprises a first shaft body section, at least one second shaft body section and a third shaft body section, stepped shafts are formed on two sides of the second shaft body section, the air inlet hole and the air outlet hole are respectively positioned on the stepped shafts, and grooves are formed in the first shaft body section, the second shaft body section and the third shaft body section. The invention also provides a high-speed rotating joint; according to the invention, the corresponding groove is formed in the rotating shaft piece, so that the rotating shaft piece can be lubricated by lubricating oil when in use, then the lubricating oil can enter the groove, and gas can not enter different stepped shaft parts through the groove, so that the sealing effect is ensured; and the rotating shaft and the connecting piece are directly contacted with each other through metal, and the sealing effect of the rotating shaft and the connecting piece can be improved through the tension action between metal surfaces.

Description

Rotating shaft assembly and high-speed rotating joint thereof

Technical Field

The invention relates to the technical field of pneumatic connectors, in particular to a rotating shaft assembly and a high-speed rotating joint thereof.

Background

The rotary joint means: the pipeline connecting device is connected with the pipeline which can rotate relatively and can be used for conveying various media such as gas, liquid, oil and the like; the compact design structure adopts flange formula connection, and effectual integration is in the customer equipment.

The rotary shaft assembly in the existing rotary joint generally comprises a shaft element, a connecting element is arranged on a shaft element sleeve, sealing structures adopted when the shaft element and the connecting element are sealed through sealing rings, but the sealing elements on the shaft element are abraded due to friction caused by rotation after long-term use, and the sealing effect is reduced.

Disclosure of Invention

The invention aims to provide a rotating shaft assembly and a high-speed rotating joint thereof, which improve the sealing effect.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a rotating shaft assembly, its characterized in that includes that rotation axis and cover establish the connecting piece outside the rotation axis, be provided with inlet port and venthole in the rotation axis, set up the intercommunicating pore that corresponds with inlet port and venthole on the connecting piece, the rotation axis includes that the axis body is one section, at least one axis body two-stage section, axis body three-stage, the both sides of axis body two-stage section form the step shaft, inlet port and venthole are located the step shaft respectively, all set up flutedly on one section, axis body two-stage section, the axis body three-stage of axis body.

The invention is further provided with the groove opening of the groove with the depth of 1-2 mm.

The invention further provides that the groove is a V-shaped groove, wherein the angle of the V-shaped groove is 30-60 °.

The invention further provides that a plurality of sealing grooves for placing sealing rings are formed on the connecting piece, and a middle shaft section provided with a communicating hole is arranged on one side of each sealing groove.

The invention further provides that the grooves are arranged along the circumferential direction of the respective shaft body section.

The invention further provides that the recess is located centrally in the respective shaft section.

In addition, the invention also provides a high-speed rotating joint which is provided with the rotating shaft assembly.

The invention has the beneficial effects that: the corresponding groove is formed in the rotating shaft piece, and the groove has the effects that when the sealing device is used, lubricating oil can be used for lubricating the rotating shaft piece, and then the lubricating oil can enter the groove, so that gas can not enter different stepped shaft parts through the groove in the using process, and the sealing effect is ensured; and the rotating shaft and the connecting piece are directly contacted with each other through metal, and the sealing effect of the rotating shaft and the connecting piece is improved through the tension action between metal surfaces.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Fig. 3 is a sectional view of a rotary shaft in embodiment 1 of the present invention.

Reference numeral, 10, a rotation axis; 101. a first section of the shaft body; 102. a second shaft body section; 103. a shaft body is divided into three sections; 20. a stage shaft; 30. an air inlet; 40. an air outlet; 50. a groove; 60. a sealing groove; 70. a communicating hole;

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1, a rotating shaft assembly comprises a rotating shaft 10 and a connecting member sleeved outside the rotating shaft 10, wherein an air inlet 30 and an air outlet 40 are arranged in the rotating shaft 10, a communicating hole 70 corresponding to the air inlet 30 and the air outlet 40 is formed in the connecting member, the rotating shaft 10 comprises a first shaft section 101, at least one second shaft section 102 and a third shaft section 103, stepped shafts are formed on two sides of the second shaft section 102, the air inlet 30 and the air outlet 40 are respectively located on the stepped shafts, grooves 50 are formed in the first shaft section 101, the second shaft section 102 and the third shaft section 103, the depth of a notch of each groove 50 is 1-2mm, each groove 50 is a V-shaped groove, the angle of each V-shaped groove is 30-60 degrees, a plurality of sealing grooves 60 for placing sealing rings are formed in the connecting member, and a middle shaft section provided with the communicating hole 70 is arranged on one side of each sealing groove 60, the grooves 50 are arranged along the circumferential direction of the respective shaft body section, and the grooves 50 are located at the center of the respective shaft body section.

Wherein, a plurality of shaft body sections 102 can be arranged, as shown in fig. 1 and fig. 2, fig. 1 is a single shaft body section 102 shown in embodiment 1; FIG. 2 shows an example 2, which shows 3 shaft sections 102;

According to the invention, the corresponding groove 50 is formed in the rotating shaft 10, and the groove 50 has the effects that when the sealing device is used, lubricating oil can be used for lubricating the rotating shaft, and then the lubricating oil can enter the groove 50, so that gas can not enter different stepped shaft parts through the groove 50 in the using process, and the sealing effect is ensured; secondly, the rotating shaft 10 and the connecting piece are directly contacted through metal, and the sealing effect can be improved through the tension action between metal surfaces.

Certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a rotating shaft assembly, its characterized in that includes that rotation axis and cover establish the connecting piece outside the rotation axis, be provided with inlet port and venthole in the rotation axis, set up the intercommunicating pore that corresponds with inlet port and venthole on the connecting piece, the rotation axis includes that the axis body is one section, at least one axis body two-stage section, axis body three-stage, the both sides of axis body two-stage section form the step shaft, inlet port and venthole are located the step shaft respectively, all set up flutedly on one section, axis body two-stage section, the axis body three-stage of axis body.

2. A rotary shaft assembly as claimed in claim 2, wherein the depth of the notch of said groove is 1-2 mm.

3. The rotary shaft assembly as claimed in claim 1, wherein the recess is a V-shaped groove, wherein the angle of the V-shaped groove is 30-60 °.

4. The rotating shaft assembly according to claim 3, wherein the connecting member has a plurality of sealing grooves for receiving the sealing rings, and a middle shaft section having a communication hole is provided at one side of the sealing grooves.

5. The rotary shaft assembly as claimed in claim 4, wherein the grooves are provided along a circumferential direction of the respective shaft body sections.

6. The rotary shaft assembly as claimed in claim 5, wherein the recess is located at a central position of the respective shaft section.

7. A high-speed rotary joint having the rotary shaft assembly according to any one of claims 1 to 5.