CN217056746U

CN217056746U - Double-channel rotary joint

Info

Publication number: CN217056746U
Application number: CN202220670130.6U
Authority: CN
Inventors: 麦国庆
Original assignee: Ishikawa Machinery Co ltd
Current assignee: Ishikawa Machinery Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-07-26
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses a binary channels rotary joint, including fixed joint and rotator, fixed joint's middle and both ends are fixed and are equipped with the slot, the slot internal fixation is equipped with the glary circle, states in the inner circle that rotator slidable joint located the glary circle, the step internal diameter of slot is less than the internal diameter of no slot part and becomes oil duct A chamber and oil duct B chamber with fixed joint's internal separation, fixed a mouthful and the B mouth of being equipped with on the fixed joint, a mouthful links to each other with oil duct A chamber is fixed, B mouthful links to each other with oil duct B chamber is fixed. The utility model belongs to the hydraulic technical field, in particular to a hydraulic cylinder which is simple, reasonable, stable in structure and reliable in sealing; the dual-channel rotary joint is convenient to use and solves the problem of oil supply and return of a hydraulic system on rotary equipment.

Description

Double-channel rotary joint

Technical Field

The utility model belongs to the technical field of hydraulic pressure, specifically indicate a binary channels rotary joint.

Background

A rotary joint is a connecting sealing component for the input of fluid medium from a stationary pipe into a rotating device. The sealing device solves the problems of running, overflowing, dripping and leaking, saves energy, protects environment and improves working conditions. In the hydraulic technical field, hydraulic oil is supplied with oil and is returned with oil. But the market does not have a double-channel rotary joint, which also makes the hydraulic system have difficulty in simultaneously supplying and returning oil in the rotary device.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a simple and reasonable structure, stable structure and reliable sealing; the dual-channel rotary joint is convenient to use and solves the problem of oil supply and return of a hydraulic system on rotary equipment.

In order to realize the above functions, the utility model discloses the technical scheme who takes as follows: a double-channel rotary joint comprises a fixed joint and a rotary body, wherein the middle and two ends of the fixed joint are fixedly provided with grooves, the groove is internally and fixedly provided with a GREEN ring, the rotating body is arranged in the inner ring of the GREEN ring in a sliding and clamping way, the inner diameter of the step of the groove is smaller than the inner diameter of the groove-free part to divide the inside of the fixed joint into an oil channel A cavity and an oil channel B cavity, the fixed joint is fixedly provided with an a port and a B port, the a port is fixedly connected with the oil duct A cavity, the B port is fixedly connected with the oil duct B cavity, when the hydraulic oil respectively enters the oil passage A cavity and the oil passage B cavity through the port a and the port B on the fixed joint, the inner ring of the GREEN ring and the rotator form sliding seal, and the O-shaped ring of the outer ring of the GREEN ring and the fixed joint form fixed seal, so that the two cavities are completely independent and do not leak, and the two independent cavities of the double-channel rotator are completed.

Furthermore, the side assembly of fixed joint is equipped with combined seal circle, fixed joint can dismantle and be equipped with fixation nut, the combined seal circle joint is located between the step of rotator and the fixation nut, can guarantee the normal rotation of rotator, gives fixed joint certain pretightning force again, avoids fixed joint at the axial play.

Preferably, the rotator is welded with an oil pipeline with an opening A and an oil pipeline with an opening B, the fixed joint is fixedly provided with an outlet A and an outlet B, oil in the cavity A of the oil duct and the cavity B of the oil duct is conveyed to the outlet A and the outlet B through the oil pipeline with the opening A and the oil pipeline with the opening B which are welded on the rotator, and double-oil-way conveying on the rotator is completed.

The utility model adopts the above structure to obtain the beneficial effects as follows: the utility model provides a binary channels rotary joint, easy operation, compact structure, reasonable in design, it is sealed reliable, convenient to use, the inner circle through the glay circle forms sliding seal with the rotator, the O type circle and the fixed joint of glay circle outer lane form fixed seal. The two cavities are completely independent and do not leak, so that the two independent cavities of the double-channel rotating body are completed, and the problem of oil supply and return of a hydraulic system on the rotary equipment is solved.

Drawings

Fig. 1 is a cross-sectional view of the dual-channel rotary joint provided by the present invention.

The oil delivery device comprises a fixing nut 1, a fixing nut 2, a Glare ring 3, a fixing joint 4, a combined sealing ring 5, a rotating body 6, an oil delivery pipe with an opening A, an oil delivery pipe with an opening B7, an oil delivery pipe with an opening B8, an oil channel A cavity, an oil channel B cavity 9, an oil channel A cavity 10, an outlet A, an outlet B11, an outlet A12, an opening a, an opening 13 and an opening B.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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 present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the utility model provides a double-channel rotary joint, including fixed joint 3 and rotator 5, the middle and both ends of fixed joint 3 are fixedly equipped with the slot, the slot internal fixation is equipped with the Gla circle 2, said rotator 5 slidable joint locates in the inner circle of Gla circle 2, the step internal diameter of slot is less than the internal diameter of non-slot part and divides the inside of fixed joint 3 into oil duct A chamber 8 and oil duct B chamber 9, fixed joint 3 is equipped with a mouth 12 and B mouth 13, a mouth 12 is fixed with oil duct A chamber 8, B mouth 13 is fixed with oil duct B chamber 9, the side assembly of fixed joint 3 is equipped with combined seal ring 4, fixed joint 3 can dismantle is equipped with fixation nut 1, combined seal ring 4 is clamped between the step of rotator 5 and fixation nut 1, rotator 5 is welded and is equipped with A mouth oil pipeline 6 and B mouth oil pipeline 7, the fixed joint 3 is fixedly provided with an outlet A10 and an outlet B11.

When the combined sealing ring 4 is used in a concrete application, when hydraulic oil enters the oil duct A cavity 8 and the oil duct B cavity 9 through the port a 12 and the port B13 on the fixed joint 3 respectively, the inner ring of the GREEN ring 2 and the rotating body 5 form sliding sealing, the O-shaped ring on the outer ring of the GREEN ring 2 and the fixed joint 3 form fixed sealing, and the two cavities are completely independent and do not leak, so that the two independent cavities of the double-channel rotating body 5 are completed, the combined sealing ring 4 can ensure normal rotation of the rotating body 5, a certain pre-tightening force is provided for the fixed joint 3, the fixed joint 3 is prevented from moving in an axial direction, oil in the oil duct A cavity 8 and the oil duct B cavity 9 is conveyed to the A outlet 10 and the B outlet 11 through the port A oil conveying pipe 6 and the port B oil conveying pipe 7 which are welded on the rotating body 5, and double-oil-way conveying on the rotating body 5 is completed.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. A binary channels rotary joint which characterized in that: the oil duct joint comprises a fixed joint and a rotating body, wherein grooves are fixedly formed in the middle and two ends of the fixed joint, a Glabra ring is fixedly arranged in each groove, the rotating body is arranged in an inner ring of the Glabra ring in a sliding clamping mode, the step inner diameter of each groove is smaller than the inner diameter of a groove-free part to divide the inside of the fixed joint into an oil duct A cavity and an oil duct B cavity, an opening a and an opening B are fixedly formed in the fixed joint, the opening a is fixedly connected with the oil duct A cavity, and the opening B is fixedly connected with the oil duct B cavity.

2. A dual path rotary joint as set forth in claim 1, wherein: the side assembly of fixed joint is equipped with the combination sealing washer, fixed joint can dismantle and be equipped with fixation nut, the step and the fixation nut of rotator are located to the combination sealing washer joint.

3. A dual path rotary joint as set forth in claim 2 wherein: the rotator is welded with an oil pipeline with an opening A and an oil pipeline with an opening B, and the fixed joint is fixedly provided with an opening A and an opening B.