CN212298046U

CN212298046U - Multi-fluid channel rotary joint

Info

Publication number: CN212298046U
Application number: CN202020972793.4U
Authority: CN
Inventors: 肖业海; 林昌华
Original assignee: Xiamen Liqi Environmental Engineering Co ltd
Current assignee: Xiamen Liqi Environmental Engineering Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-01-05
Anticipated expiration: 2030-06-01

Abstract

A multiple fluid passage rotary joint, characterized by: the device comprises a sealing end cover, an outer rotating shaft sleeve, a rotating shaft, a plurality of balls and a flange plate base; the external rotary shaft sleeve and the rotary shaft of the utility model are symmetrically staggered and separated into two parts from the middle, which can adapt to the working condition with the internal non-detachable equipment; the four drainage grooves, the four fluid grooves and the four fluid outflow through holes can convey various fluids, and meanwhile, the flow of different fluids can be adjusted.

Description

Multi-fluid channel rotary joint

Technical Field

The utility model belongs to multithread body passageway rotation field indicates a multithread body passageway rotary joint especially.

Background

The prior domestic multi-fluid rotary joint mainly adopts an outer shaft sleeve of a rotating shaft jacket, opens a round hole on the rotating shaft and leads to the fluid groove of the rotating shaft, and opens a round hole at the outer shaft sleeve of the corresponding position and leads out, but has the following defects: 1) when the shaft center is provided with equipment or non-detachable equipment, the equipment cannot be installed or replaced; 2) when the fluid types are less, or the flow rate of part of the fluid is larger and the flow rate of part of the fluid is smaller, a larger rotating shaft and an outer shaft sleeve are needed, and materials are wasted;

3) the occupation space is great, and the position of reforming transform can't install for some.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a multi-fluid passage rotary joint. The structure is compact, the space utilization rate is high, and the installation or the replacement is convenient; need not to dismantle original equipment and restore, reduce the dismouting damage to original other equipment.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a multiple fluid passage rotary joint, characterized by: the device comprises a sealing end cover, an outer rotating shaft sleeve, a rotating shaft, a plurality of balls and a flange plate base; the rotating shaft is arranged on the flange plate base through a fastening screw I; the rotating shaft is a hollow shaft, two arc-shaped grooves I are formed in the surface of the rotating shaft, and the balls are mounted on the arc-shaped grooves I; the outer rotary shaft sleeve is sleeved on the rotary shaft and positioned by using the sealing end cover, and can rotate around the rotary shaft; the sealing end cover 1 is arranged at the upper end of the rotating shaft 3 by using a screw IV; a plurality of fluid grooves which are connected end to end are formed in the surface of the rotating shaft; the rotating shaft is also provided with a plurality of drainage grooves; the number of the drainage grooves is equal to that of the fluid grooves, and the drainage grooves are communicated with the fluid grooves in a one-to-one correspondence manner; a plurality of through holes are formed in the surface of the outer rotating shaft sleeve; the number of the through holes is equal to that of the fluid grooves, and the through holes are communicated with the fluid grooves in a one-to-one correspondence manner; and a plurality of grooves III are formed in the inner wall of the outer rotating shaft sleeve, and O-shaped sealing rings are arranged on the grooves III.

Furthermore, two arc-shaped grooves II are formed in the outer rotating shaft sleeve; the arc-shaped grooves II correspond to the arc-shaped grooves I one by one and form two tracks for mounting balls.

Further, the cross section of the drainage groove is in the shape of a circular arc long-strip hole; the cross section of the through hole is also in the shape of a circular arc long strip hole.

Further, the sealing end cover is provided with a hole II.

Further, the rotating shaft is symmetrically staggered and separated from the middle and is divided into a section I and a section II; the sections I and II are fastened and connected by a plurality of fastening screws II; and a sealing strip I is arranged on the contact surface of the section I and the section II.

Further, the outer rotary shaft sleeve is symmetrically staggered and separated from the middle and is divided into a section III and a section IV; the sections III and IV are formed by fastening and connecting a plurality of fastening screws III; and a sealing strip II is arranged on the contact surface of the section III and the section IV.

Furthermore, the flange plate base is formed by fastening and connecting a section V and a section VI by using a plurality of fastening screws.

Further, two arc-shaped grooves I are respectively arranged on the upper section and the lower section of the rotating shaft.

Furthermore, four drainage grooves are formed; four fluid grooves are arranged; the number of the through holes is four.

The utility model has the advantages that: 1) the external rotary shaft sleeve and the rotary shaft of the utility model are symmetrically staggered and separated into two parts from the middle, which can adapt to the working condition with the internal non-detachable equipment; 2) the cross section of the drainage groove of the rotary shaft is arranged into a circular arc long-strip hole shape, and the cross section of the through hole on the outer rotary shaft sleeve matched with the drainage groove is also arranged into a circular arc long-strip hole shape, so that the sectional area for fluid circulation is large, the maximum flow of fluid in unit time is large, and the applicability is strong; 3) the utility model is provided with two groups of balls, the outer rotary shaft sleeve can rotate around the rotary shaft, and simultaneously, two O-shaped sealing rings are adopted between each fluid groove for sealing, thus the sealing effect is good; 4) the structure is compact, and the installation is convenient; can adapt to different working conditions.

Drawings

Fig. 1 is a plan view of the present invention; FIG. 2 is a sectional view taken along the line A-A in FIG. 1; FIG. 3 is a sectional view taken along the line of FIGS. 1B-B; fig. 4 is a top view of the present invention; FIG. 5 is a sectional view taken along the direction of FIG. 4C-C; fig. 6 is a bottom view of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in the figure: a multiple fluid passage rotary joint, characterized by: the device comprises a sealing end cover 1, an outer rotary shaft sleeve 2, a rotary shaft 3, a plurality of balls 4 and a flange plate base 5; the rotating shaft 3 is arranged on the flange plate base 5 by using a fastening screw I6; the rotating shaft 3 is a hollow shaft, two arc-shaped grooves I31 are formed in the surface of the rotating shaft, and the balls 4 are mounted on the arc-shaped grooves I31; the outer rotary shaft sleeve 2 is sleeved on the rotary shaft 3 and positioned by using the sealing end cover 1, and can rotate around the rotary shaft 3; the sealing end cover 1 is arranged at the upper end of the rotating shaft 3 by using a screw IV 12; a plurality of fluid grooves 32 connected end to end are formed in the surface of the rotating shaft 3; the rotating shaft 3 is also provided with a plurality of drainage grooves 33; the number of the drainage grooves 33 is equal to that of the fluid grooves 32, and the drainage grooves 33 are communicated with the fluid grooves 32 in a one-to-one correspondence manner; the surface of the outer rotary shaft sleeve 2 is provided with a plurality of through holes 21; the number of the through holes 21 is equal to that of the fluid grooves 32, and the through holes 21 are communicated with the fluid grooves 32 in a one-to-one correspondence manner; a plurality of grooves III 23 are formed in the inner wall of the outer rotary shaft sleeve 2, and O-shaped sealing rings 7 are mounted on the grooves III 23.

Two arc-shaped grooves II 24 are formed in the outer rotary shaft sleeve 2; the arc-shaped grooves II 24 correspond to the arc-shaped grooves I31 one by one, and enclose two runways for mounting the balls 4.

The cross section of the drainage groove 33 is in the shape of a circular arc long-strip hole; the cross section of the through hole 21 is also in the shape of a circular arc long hole.

And a hole II 11 is formed in the sealing end cover 1.

The rotating shaft 3 is symmetrically staggered and separated from the middle and is divided into a section I34 and a section II 35; the section I34 and the section II 35 are fastened and connected by a plurality of fastening screws II 36; and a sealing strip I37 is arranged on the contact surface of the section I34 and the section II 35.

The outer rotary shaft sleeve 2 is symmetrically staggered and separated from the middle and is divided into a section III 25 and a section IV 26; the section III 25 and the section IV 26 are formed by fastening and connecting a plurality of fastening screws III 27; and a sealing strip II 28 is arranged on the contact surface of the section III 25 and the section IV 26.

The flange plate base 5 is formed by fastening and connecting a section V51 and a section VI 52 by using a plurality of fastening screws.

Two arc-shaped grooves I31 are respectively arranged on the upper section and the lower section of the rotating shaft 3.

Four drainage grooves 33 are arranged; four fluid slots 32 are provided; the number of the through holes 21 is four.

The utility model discloses an use: the utility model is provided with four drainage grooves, four fluid grooves and four through holes for fluid to flow out, which can convey various fluids, and can adapt to the requirements of various fluids on different flow rates, such as increasing and decreasing the groove depth and the groove width or increasing and decreasing the size of the strip hole, by changing the cross-sectional sizes of the drainage grooves, the fluid grooves and the through holes during the design; when the flow of a certain fluid needs to be adjusted, the outer rotating sleeve is rotated to change the matching degree of the outlet of the drainage groove corresponding to the fluid and the corresponding through hole, and when the maximum flow is needed, the outer rotating sleeve is rotated to ensure that the outlet of the drainage groove is completely matched with the corresponding through hole (at the moment, the section of the outlet of the drainage groove is parallel to the section of the corresponding through hole, the fluid flows out from the outlet of the drainage groove, and flows into the fluid groove and the through hole in sequence in a straight line and then flows out from the through hole); when needs minimum flow, rotatory outer swivel sleeve for the export of drainage groove is not cooperated with corresponding through-hole, and at this moment, the fluid flows into the fluid groove from the drainage groove, behind one section curved fluid groove, flows into the through-hole, and flows out from the through-hole.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A multiple fluid passage rotary joint, characterized by: the device comprises a sealing end cover, an outer rotating shaft sleeve, a rotating shaft, a plurality of balls and a flange plate base; the rotating shaft is arranged on the flange plate base through a fastening screw I; the rotating shaft is a hollow shaft, two arc-shaped grooves I are formed in the surface of the rotating shaft, and the balls are mounted on the arc-shaped grooves I; the outer rotary shaft sleeve is sleeved on the rotary shaft and positioned by using the sealing end cover, and can rotate around the rotary shaft; the sealing end cover is arranged at the upper end of the rotating shaft by using a screw IV; a plurality of fluid grooves which are connected end to end are formed in the surface of the rotating shaft; the rotating shaft is also provided with a plurality of drainage grooves; the number of the drainage grooves is equal to that of the fluid grooves, and the drainage grooves are communicated with the fluid grooves in a one-to-one correspondence manner; a plurality of through holes are formed in the surface of the outer rotating shaft sleeve; the number of the through holes is equal to that of the fluid grooves, and the through holes are communicated with the fluid grooves in a one-to-one correspondence manner; and a plurality of grooves III are formed in the inner wall of the outer rotating shaft sleeve, and O-shaped sealing rings are arranged on the grooves III.

2. A multi-fluid passage rotary union as defined in claim 1, wherein: two arc-shaped grooves II are formed in the outer rotating shaft sleeve; the arc-shaped grooves II correspond to the arc-shaped grooves I one by one and form two tracks for mounting balls.

3. A multi-fluid passage rotary union as defined in claim 1, wherein: the cross section of the drainage groove is in a circular arc long-strip hole shape; the cross section of the through hole is also in the shape of a circular arc long strip hole.

4. A multi-fluid passage rotary union as defined in claim 1, wherein: and the sealing end cover is provided with a hole II.

5. A multi-fluid passage rotary union as defined in claim 1, wherein: the rotating shaft is symmetrically staggered and separated from the middle and is divided into a section I and a section II; the sections I and II are fastened and connected by a plurality of fastening screws II; and a sealing strip I is arranged on the contact surface of the section I and the section II.

6. A multi-fluid passage rotary union as defined in claim 1, wherein: the outer rotating shaft sleeve is symmetrically staggered and separated from the middle and is divided into a section III and a section IV; the sections III and IV are formed by fastening and connecting a plurality of fastening screws III; and a sealing strip II is arranged on the contact surface of the section III and the section IV.

7. A multi-fluid passage rotary union as defined in claim 1, wherein: the flange plate base is formed by fastening and connecting a section V and a section VI by using a plurality of fastening screws.

8. A multi-fluid passage rotary union as defined in claim 1, wherein: two arc-shaped grooves I are respectively arranged on the upper section and the lower section of the rotating shaft.

9. A multi-fluid passage rotary union as defined in claim 1, wherein: four drainage grooves are formed; four fluid grooves are arranged; the number of the through holes is four.