CN105090654A

CN105090654A - Multi-path rotating joint

Info

Publication number: CN105090654A
Application number: CN201410195463.8A
Authority: CN
Inventors: 盖延峰; 邵明秋; 郭峰
Original assignee: TENGZHOU TIANXUAN ROTARY UNION CO Ltd
Current assignee: TENGZHOU TIANXUAN ROTARY UNION CO Ltd
Priority date: 2014-05-10
Filing date: 2014-05-10
Publication date: 2015-11-25

Abstract

The invention discloses a multi-path rotating joint which comprises a casing, outer tubes, retaining rings for holes, first ball bearings, sealing elements, first combined sealing rings, second ball bearings, end covers and second combined retaining rings. The multi-path rotating joint is characterized in that the first ball bearings and the second ball bearings are arranged at two ends of the casing and the outer tubes for supporting; the sealing elements and the first combined sealing rings are sequentially arranged between the first ball bearings and the second ball bearings; the sealing elements are two low-pressure sealing elements; the number of the first combined sealing rings is seven; the casing and the outer tubes are segmented into eight sealing areas; a first path, a second path, a third path, a fourth path,, a fifth path, a sixth path, a seventh path and an eighth path are respectively arranged on the casing and the outer tubes in the sealing areas; the end covers and the second combined retaining rings are arranged at one end of the rotating joint; the retaining rings for the holes are arranged at the other end of the rotating joint. The multi-path rotating joint can allow multiple mediums to simultaneously flow through and can also bear a great pressure difference among the paths.

Description

A kind of Multi-path rotary joint

Technical field

The invention belongs to swivel joint, particularly a kind of Multi-path rotary joint.

Background technique

In industries such as metallurgy, iron and steel, engineering machinery, probings, often can run into and between fixed block and rotating machinery, have liquids and gases medium need transmit simultaneously, and there is very large pressure difference between path, the problem that installing space is limited.Substantially the little plain edition whirligig of multiple logical Single Medium pressure difference is all adopted to be solved.The plain edition whirligig manufacturing efficiency of current use is low, and substantially all adopt unbalanced sealing configuration, Sealing is easy to wear, and the life-span is short, changes frequent, waste material resources, financial resources.

Summary of the invention

For above-mentioned the deficiencies in the prior art, the invention provides a kind of Multi-path rotary joint, this Multi-path rotary joint can circulate medium simultaneously, can bear again very large pressure difference between path, structure adopts balanced type sealing, compact, easy to connect, spline is simple.

Technological scheme of the present invention is: a kind of Multi-path rotary joint, comprise housing, outer tube, hole back-up ring, the first ball bearing, Sealing, the first combined seal ring, the second ball bearing, end cap, the second combination back-up ring, it is characterized in that: described housing and outer tube two ends are provided with the first ball bearing, the second ball bearing two ball bearings support, and Sealing, the first combined seal ring are housed between the first ball bearing, the second ball bearing successively; Described Sealing is two is low pressure seal, described first combined seal ring is 7, housing and outer tube are divided into 8 sealing areas, the first path, alternate path, third path, the 4th path, five-way road, the 6th path, the 7th path, the 8th path is designed with respectively at sealing area upper shell and outer tube, described first path, alternate path are gas medium path, and third path, the 4th path, five-way road, the 6th path, the 7th path, the 8th path are hydraulic medium path; Described swivel joint one end has end cap and second to combine back-up ring, the porose back-up ring of the other end.

Advantageous effect of the present invention: this Multi-path rotary joint, has two precision bearings to carry out stable support when outer tube rotates, and rotates steadily under guaranteeing high pressure conditions, ensures the running of product long lifetime.Employing balanced type seals, and has captured while swivel joint product is difficult to realize and has transmitted between different circulation medium and each path that pressure difference is large, frictional force is little, the technical barrier of rotary seal.Range of working pressure: 0.6MPa---42.0MPa, circulation medium is water, gas, hydraulic oil, and maximum speed is 25 rpms.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of a kind of Multi-path rotary joint of the present invention

Fig. 2 is the outer tube structure schematic diagram of a kind of Multi-path rotary joint of the present invention

Accompanying drawing indicates: 1 be housing, 2 be outer tube, 3 be hole back-up ring, 4 be clutch shaft bearing, 5 be Sealing, 6 to be the first combined seal ring, 7 be the second bearing, 8 for end cap, 9 be the second combination back-up ring, 10 be the first path, 11 be alternate path, 12 be the 8th path for third path, 13 be the 4th path, 14 be five-way road, 15 be the 6th path, 16 is the 7th path, 17.

Embodiment

Below in conjunction with accompanying drawing, the present invention is further illustrated:

As shown in Figure 1 and Figure 2, a kind of Multi-path rotary joint, comprise housing 1, outer tube 2, hole back-up ring 3, first ball bearing 4, Sealing 5, first combined seal ring 6, second ball bearing 7, end cap 8, second combination back-up ring 9, it is characterized in that: described housing 1 is provided with the first ball bearing 4, second ball bearing 7 two ball bearings with outer tube 2 two ends and supports, and between the first ball bearing 4, second ball bearing 7, Sealing 5, first combined seal ring 6 is housed successively; Described Sealing 5 is two is low pressure seal, described first combined seal ring 6 is 7, housing 1 and outer tube 2 are divided into 8 sealing areas, the first path 10, alternate path 11, third path 12, the 4th path 13, five-way road 14, the 6th path 15, the 7th path 16, the 8th path 17 is designed with respectively at sealing area upper shell 1 and outer tube 2, described first path 10, alternate path 11 are gas medium path, and third path 12, the 4th path 13, five-way road 14, the 6th path 15, the 7th path 16, the 8th path 17 are hydraulic medium path; Described swivel joint one end has end cap 8 and second to combine back-up ring 9, the porose back-up ring 3 of the other end.

Claims

1. a Multi-path rotary joint, comprise housing, outer tube, hole back-up ring, the first ball bearing, Sealing, the first combined seal ring, the second ball bearing, end cap, the second combination back-up ring, it is characterized in that: described housing and outer tube two ends are provided with the first ball bearing, the second ball bearing two ball bearings support, and Sealing, the first combined seal ring are housed between the first ball bearing, the second ball bearing successively; Described Sealing is two is low pressure seal, described first combined seal ring is 7, housing and outer tube are divided into 8 sealing areas, the first path, alternate path, third path, the 4th path, five-way road, the 6th path, the 7th path, the 8th path is designed with respectively at sealing area upper shell and outer tube, described first path, alternate path are gas medium path, and third path, the 4th path, five-way road, the 6th path, the 7th path, the 8th path are hydraulic medium path; Described swivel joint one end has end cap and second to combine back-up ring, the porose back-up ring of the other end.