Multi-channel rotary joint

Abstract

The utility model relates to the technical field of rotating joints, and discloses a multi-channel rotating joint which comprises two unit joints, each unit joint comprises an outer shell and a rotating shaft, connecting flanges are fixedly installed at the two ends of each outer shell, a plurality of bolt holes are formed in the surfaces of the connecting flanges, a plurality of output ports are fixedly installed on the surfaces of the outer shells, and the rotating shafts are connected with the connecting flanges. The rotating shaft is rotatably installed in the outer shell, a plurality of input holes and a plurality of communicating holes are formed in the rotating shaft, a plurality of annular grooves are formed in the surface of the rotating shaft, the output ports correspond to the annular grooves in a one-to-one mode, and the output ports communicate with the annular grooves. According to the multi-channel rotating joint, the multiple input holes are formed in the rotating shaft, the multiple output ports are formed in the surface of the outer shell, the input holes are communicated with the input holes through the annular grooves, the function of the multi-channel rotating joint is achieved, two unit joints are assembled together, one input hole is communicated with two output ports, and the effect that the output ports are connected in parallel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary joints, in particular to a multi-channel rotary joint. Background Art

[0002] A multi-channel rotary joint is a joint that can select a connection mode according to the working situation, and the transmission medium inlet can freely select a side or rear end entry joint according to the working situation. For example, in the prior art, the announcement number CN115638179A discloses a multi-channel rotary joint, including a housing and a rotating shaft, one end of the rotating shaft is movably installed in the housing through a bearing, and also includes: a lubrication mechanism and a storage box, the lubrication mechanism includes a driving component, an intermittent component and a conveying component; the intermittent component includes a second rotating shaft, a rotating member, a second connecting member, a swinging member, a first toggle member, a second toggle member, a pressing member, a first rotating seat and a second rotating seat. In a multi-channel rotary joint of the present invention, the rotating shaft drives the intermittent component to rotate intermittently through the driving component, and the intermittent component cooperates with the conveying component to intermittently convey the lubricating oil to the position of the bearing, and when the bearing is running, due to the static state of the conveying pipe, the conveying pipe can evenly convey the lubricating oil to the bearing, ensuring the normal operation of the bearing, and improving the service life of the bearing, thereby improving the working efficiency and practicality of the rotary joint.

[0003] Since the multiple channels of the joint are mostly independent, in actual use, when two channels in the multiple channels need to be connected in parallel, that is, sharing one input port to achieve two output ports, the existing multi-channel rotary joint has the problem of inconvenient adjustment, which needs further improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-channel rotary joint to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-channel rotary joint, comprising two unit joints, wherein the unit joints include an outer shell and a rotating shaft, connecting flanges are fixedly installed at both ends of the outer shell, a plurality of bolt holes are opened on the surface of the connecting flange, and a plurality of output ports are fixedly installed on the surface of the outer shell.

[0006] The rotating shaft is rotatably installed in the outer shell, and a plurality of input holes and a plurality of connecting holes are respectively opened inside the rotating shaft. The plurality of input holes penetrate both ends of the rotating shaft, and a plurality of annular grooves are opened on the surface of the rotating shaft, and each annular groove is connected with the input hole through the connecting hole, and the plurality of output ports correspond to the plurality of annular grooves one by one, so that the output ports are connected with the annular grooves.

[0007] The two unit joints are assembled together in a straight line, and the connecting flanges of the two are fixedly connected by a first bolt. The two rotating shafts in the two unit joints are fixedly connected by a second bolt. The ends of the rotating shafts are fixedly installed with a detachable sealing disk by a third bolt. The two unit joints are assembled together to realize the connection between an input hole and two output ports, thereby achieving the effect of parallel connection of the output ports.

[0008] In some embodiments, sealed bearings are fixedly installed at both ends of the inner cavity of the outer shell, and the rotating shaft is rotatably connected to the inner wall of the outer shell through the sealing shaft. A plurality of sealing ring grooves are provided on the end faces at both ends of the rotating shaft, and the sealing ring grooves are arranged at the mouth of the input hole. During assembly, rubber sealing rings can be installed in the sealing ring grooves to increase the sealing of the assembly.

[0009] In some embodiments, positioning grooves are provided at both ends of the rotating shaft, and a step hole is provided between the positioning grooves on both sides. The second bolt is inserted into the step hole. When the two unit joints are docked, a positioning block is placed between the two rotating shafts. The positioning block is slidably inserted into the positioning groove, and the second bolt is threadedly connected to the positioning block to realize the assembly connection of the two rotating shafts.

[0010] In some embodiments, an end cover is fixedly mounted on the end of the outer shell by a first bolt, and the end cover is arranged on the outside of the sealing disk. The end cover is detachable to facilitate the assembly of the two unit joints.

[0011] In some embodiments, a plurality of connecting threaded holes are provided on an end surface of the rotating shaft away from the sealing disk so as to fix the rotating shaft to the mounting bracket.

[0012] In some embodiments, the outer surface of the shell has two output ports, and two connecting holes are provided inside the rotating shaft. The two connecting holes are connected to the two output ports through the input hole and the annular groove respectively. Two input light holes are provided inside the rotating shaft, and the two input light holes are arranged in a cross shape with the two input holes to achieve single conduction between one input hole and one output port, or conduction between one input hole and multiple output ports.

[0013] Beneficial Effects

[0014] The utility model provides a multi-channel rotary joint, which has the following beneficial effects:

[0015] 1. The multi-channel rotary joint realizes the function of the multi-channel rotary joint by opening multiple input holes in the rotating shaft and setting multiple output ports on the surface of the outer shell. The input holes are connected with the input holes through annular grooves, so that two unit joints are assembled together to realize the connection between one input hole and two output ports, thereby achieving the effect of parallel connection of the output ports.

[0016] 2. The multi-channel rotary joint has an input light hole set in the rotating shaft. When two unit joints are assembled, the input hole of the rotating shaft on one side is aligned and connected with the input light hole of the rotating shaft on the other side, so that the multiple input holes are connected with each output port in a one-to-one correspondence, which provides convenience for expanding the number of output ports of the outer shell. Compared with the existing multi-channel rotary joints, the number of output ports can be increased or decreased according to usage needs, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the unit joint (I);

[0018] Figure 2 Schematic diagram of the three-dimensional structure of the unit joint (II);

[0019] Figure 3 It is a schematic diagram of the front section structure of the unit joint;

[0020] Figure 4 Schematic diagram of the assembly structure of two unit joints (front section).

[0021] In the figure: 1 outer shell, 2 rotating shaft, 3 connecting flange, 4 output port, 5 input hole, 6 connecting hole, 7 annular groove, 8 first bolt, 9 second bolt, 10 third bolt, 11 sealing disk, 12 sealing bearing, 13 sealing ring groove, 14 positioning groove, 15 step hole, 16 positioning block, 17 end cover, 18 connecting threaded hole, 19 input light hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a multi-channel rotary joint, including two unit joints, the unit joint includes an outer shell 1 and a rotating shaft 2, both ends of the outer shell 1 are fixedly installed with connecting flanges 3, the surface of the connecting flange 3 is provided with a plurality of bolt holes, and the surface of the outer shell 1 is fixedly installed with a plurality of output ports 4.

[0024] The rotating shaft 2 is rotatably installed in the outer shell 1, wherein sealed bearings 12 are fixedly installed at both ends of the inner cavity of the outer shell 1, and the rotating shaft 2 is rotatably connected to the inner wall of the outer shell 1 through the sealing shaft.

[0025] The interior of the rotating shaft 2 is provided with a plurality of input holes 5 and a plurality of connecting holes 6 . The plurality of input holes 5 pass through both ends of the rotating shaft 2 . The end surfaces of both ends of the rotating shaft 2 are provided with a plurality of sealing ring grooves 13 . The sealing ring grooves 13 are arranged at the mouths of the input holes 5 .

[0026] A plurality of annular grooves 7 are formed on the surface of the rotating shaft 2 , each of which is connected to the input hole 5 through a connecting hole 6 . The plurality of output ports 4 correspond to the plurality of annular grooves 7 one by one, so that the output ports 4 are connected to the annular grooves 7 .

[0027] A removable sealing disk 11 is fixedly installed at the end of the rotating shaft 2 by a third bolt 10, and an end cover 17 is fixedly installed at the end of the outer shell 1 by a first bolt 8. The end cover 17 is arranged on the outside of the sealing disk 11. A plurality of connecting threaded holes 18 are provided on the end surface of the rotating shaft 2 away from the sealing disk 11 so that the rotating shaft 2 can be fixedly connected to the mounting bracket.

[0028] When the two unit joints are assembled together in a straight line, the connecting flanges 3 of the two are fixedly connected by the first bolt 8, and the two rotating shafts 2 in the two unit joints are fixedly connected by the second bolt 9. Specifically, positioning grooves 14 are provided at both ends of the rotating shaft 2, and a step hole 15 is provided between the positioning grooves 14 on both sides. The second bolt 9 is inserted into the step hole 15. When the two unit joints are butt-jointed, a positioning block 16 is placed between the two rotating shafts 2, and the positioning block 16 is slidably inserted into the positioning groove 14. The second bolt 9 is threadedly connected with the positioning block 16. The two unit joints are assembled together to realize that one input hole 5 is connected to two output ports 4, so as to achieve the effect of connecting the output ports 4 in parallel. Figure 4 shown.

[0029] In this embodiment, there are two output ports 4 on the outer surface of the outer shell 1, and two connecting holes 6 are provided inside the rotating shaft 2. The two connecting holes 6 are connected to the two output ports 4 through the input hole 5 and the annular groove 7 respectively. Two input light holes 19 are provided inside the rotating shaft 2, and the two input light holes 19 and the two input holes 5 are arranged in a cross shape.

[0030] By setting the input light hole 19 in the rotating shaft 2, when the two unit joints are assembled, as shown in FIG. Figure 4 In the embodiment, one of the rotating shafts 2 is rotated ninety degrees, and the input hole 5 of the rotating shaft 2 on one side is aligned and connected with the input light hole 19 of the rotating shaft 2 on the other side, so as to achieve the effect of one-to-one connection between multiple input holes 5 and each output port 4, which provides convenience for expanding the number of output ports 4 of the outer shell 1. Compared with the existing multi-channel rotary joint, the number of output ports 4 can be increased or decreased according to usage needs, which is more practical.

[0031] The multi-channel rotary joint realizes the function of the multi-channel rotary joint by opening a plurality of input holes 5 in the rotating shaft 2, and providing a plurality of output ports 4 on the surface of the outer shell 1. The input holes 5 are connected to the input holes 5 through the annular grooves 7. Two unit joints are assembled together to realize the connection between one input hole 5 and two output ports 4, thereby achieving the effect of parallel connection of the output ports 4. It should be noted that the design is not limited to the assembly of two unit joints. Multiple unit joints are assembled together to realize the effect of connecting one input hole 5 with multiple output ports 4.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel rotary joint, comprising two unit joints, characterized in that: The unit joint comprises an outer shell (1) and a rotating shaft (2), connecting flanges (3) are fixedly mounted on both ends of the outer shell (1), a plurality of bolt holes are formed on the surface of the connecting flange (3), and a plurality of output ports (4) are fixedly mounted on the surface of the outer shell (1); The rotating shaft (2) is rotatably mounted in the outer shell (1); a plurality of input holes (5) and a plurality of communication holes (6) are respectively provided inside the rotating shaft (2); the plurality of input holes (5) pass through both ends of the rotating shaft (2); a plurality of annular grooves (7) are provided on the surface of the rotating shaft (2); each annular groove (7) is respectively connected to the input hole (5) through the communication hole (6); the plurality of output ports (4) correspond to the plurality of annular grooves (7) one by one, so that the output ports (4) are connected to the annular grooves (7); The two unit joints are assembled together in a straight line, and the connecting flanges (3) of the two are fixedly connected by a first bolt (8). The two rotating shafts (2) in the two unit joints are fixedly connected by a second bolt (9), and a detachable sealing disk (11) is fixedly installed at the end of the rotating shaft (2) by a third bolt (10).

2. A multi-channel rotary joint according to claim 1, characterized in that: Sealed bearings (12) are fixedly mounted at both ends of the inner cavity of the outer shell (1), and the rotating shaft (2) is rotatably connected to the inner wall of the outer shell (1) via the sealed shaft.

3. A multi-channel rotary joint according to claim 2, characterized in that: The end surfaces at both ends of the rotating shaft (2) are provided with a plurality of sealing ring grooves (13), and the sealing ring grooves (13) are arranged at the mouth of the input hole (5).

4. A multi-channel rotary joint according to claim 3, characterized in that: Both ends of the rotating shaft (2) are provided with positioning grooves (14), and a step hole (15) is provided between the positioning grooves (14) on both sides. The second bolt (9) is inserted into the step hole (15). When the two unit joints are butt-jointed, a positioning block (16) is placed between the two rotating shafts (2), and the positioning block (16) is slidably inserted into the positioning groove (14), and the second bolt (9) is threadedly connected to the positioning block (16).

5. A multi-channel rotary joint according to claim 4, characterized in that: An end cover (17) is fixedly mounted on the end of the outer shell (1) by means of a first bolt (8), and the end cover (17) is arranged on the outside of the sealing disk (11).

6. A multi-channel rotary joint according to claim 5, characterized in that: A plurality of connecting threaded holes (18) are provided on the end surface of the rotating shaft (2) away from the sealing disk (11).

7. A multi-channel rotary joint according to any one of claims 1 to 6, characterized in that: The outer surface of the outer shell (1) has two output ports (4), and the interior of the rotating shaft (2) has two communicating holes (6). The two communicating holes (6) are respectively connected to the two output ports (4) through the input hole (5) and the annular groove (7).

8. A multi-channel rotary joint according to claim 7, characterized in that: Two input light holes (19) are provided inside the rotating shaft (2), and the two input light holes (19) and the two input holes (5) are arranged in a cross shape.

Images