Multi-channel swivel joint with good sealing performance

Abstract

The utility model relates to the technical field of swivel joints, and discloses a multi-channel swivel joint with good sealing performance, a rotating shaft is connected in a shell, first channels are uniformly arranged on the left side of the outer wall of the shell, and second channels are uniformly arranged on the right side of the outer wall of the shell; according to the multi-channel swivel joint with the good sealing performance, when the rotating body rotates, the rotating shaft can be driven to rotate, and during rotation, the first sealing ring and the third sealing ring in the shell provide sealing work for the conveying process of the rotating body; a first channel and a second channel are evenly formed in the outer wall of the shell, and therefore different media can enter the shell through the first channel and the second channel in the outer wall of the shell and then are conveyed into the rotating body through a first conveying opening and a second conveying opening in the rotating shaft at the same time. Therefore, the function of conveying different media to the rotating body equipment at the same time is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary joints, in particular to a rotary joint with multiple channels and good sealing performance. Background Art

[0002] After long-term use, the sealing performance of traditional rotary joints is poor, which easily causes oil leakage. Some rotary joints can only provide connectivity between the upper and lower hydraulic system pipelines, and cannot achieve connectivity between the electrical system circuits. Therefore, in view of the current situation, it is necessary to improve them. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a multi-channel rotary joint with good sealing performance, which effectively solves the problem that traditional rotary joints have poor sealing performance after long-term use, which easily causes oil leakage, and some rotary joints can only provide connectivity between the upper and lower parts of the hydraulic system pipelines, and cannot achieve connectivity between the electrical system circuits.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-channel rotary joint with good sealing performance, comprising a shell, a rotating shaft connected to the interior of the shell, a first channel evenly arranged on the left side of the outer wall of the shell, a second channel evenly arranged on the right side of the outer wall of the shell, a first delivery port arranged on the upper side of the inner cavity of the rotating shaft, a second delivery port arranged on the lower side of the inner cavity of the rotating shaft, the outer walls of the first channel and the second channel are both connected with a first sealing ring, a cable groove is arranged inside the rotating shaft, a ball shaft is arranged on the outer wall of the rotating shaft, the right ends of the first delivery port and the second delivery port are both connected with a third sealing ring, a pressure cover is installed on the right side of the shell, fixing bolts are arranged on both sides of the inner cavity of the pressure cover, the left ends of the fixing bolts on both sides are located in the inner wall of the shell, and anti-rotation plates are connected on both sides of the outer wall of the shell.

[0005] Preferably, the outer walls of the left ends of the first conveying port and the second conveying port are both connected with second sealing rings, and the second sealing rings on both sides are both located in the left wall of the rotating shaft.

[0006] Preferably, bearings are connected to both sides of the outer wall of the rotating shaft.

[0007] Preferably, an insulating layer is connected to the inner wall of the cable trough.

[0008] Preferably, a plurality of evenly distributed balls are provided inside the ball shaft.

[0009] Preferably, a positioning ring is connected to the left side of the gland, a positioning groove is provided on the right side of the shell, and the positioning ring matches the positioning groove.

[0010] Preferably, mounting holes are provided on both sides of the left end of the rotating shaft, and thread grooves are provided inside the mounting holes on both sides.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When the rotating body rotates, it drives the rotating shaft to rotate. During the rotation, the first sealing ring and the third sealing ring inside the shell provide sealing for the conveying process. The outer wall of the shell is evenly opened with a first channel and a second channel, so that different media can enter the interior through the first channel and the second channel on the outer wall of the shell, and then be conveyed into the rotating body through the first conveying port and the second conveying port inside the rotating shaft at the same time, thereby completing the function of conveying different media to the rotating body equipment at the same time;

[0013] 2. By opening a cable groove inside the rotating shaft, the pipelines and lines of the conveying medium will not interfere with each other when the fixed part and the rotating part rotate relative to each other;

[0014] 3. By setting the first conveying port and the second conveying port to different models, the channels connected to the first conveying port and the second conveying port do not interfere with each other, so that the same medium can be conveyed and multiple media can be conveyed at the same time, and the conveying channels have the characteristics of both integrity and independence. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached figure:

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the anti-rotation plate structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the rotating shaft structure of the utility model;

[0020] In the figure: 100, shell; 101, rotating shaft; 200, first channel; 201, second channel; 202, first delivery port; 203, second delivery port; 204, first sealing ring; 205, second sealing ring; 206, cable trough; 207, bearing; 208, ball shaft; 209, third sealing ring; 300, pressure cover; 301, fixing bolt; 302, positioning ring; 303, positioning groove; 304, mounting hole; 305, anti-rotation plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-3A multi-channel rotary joint with good sealing performance includes a shell 100, characterized in that: the shell 100 is rotatably connected to a rotating shaft 101, a first channel 200 is evenly opened on the left side of the outer wall of the shell 100, a second channel 201 is evenly opened on the right side of the outer wall of the shell 100, a first delivery port 202 is opened on the upper side of the inner cavity of the rotating shaft 101, and a second delivery port 203 is opened on the lower side of the inner cavity of the rotating shaft 101. The outer walls of the first channel 200 and the second channel 201 are fixedly connected with a first sealing ring 204, a cable groove 206 is opened inside the rotating shaft 101, a ball shaft 208 is fixedly installed on the outer wall of the rotating shaft 101, and the right ends of the first delivery port 202 and the second delivery port 203 are fixedly connected with a third sealing ring. 209, a pressure cover 300 is fixedly installed on the right side of the shell 100, and both sides of the inner cavity of the pressure cover 300 are rotatably connected with fixing bolts 301, and the left ends of the fixing bolts 301 on both sides are located in the inner wall of the shell 100, and both sides of the outer wall of the shell 100 are fixedly connected with anti-rotation plates 305. When the rotating body rotates, it will drive the rotating shaft 101 to rotate. When the rotating shaft 101 rotates, the first sealing ring 204 and the third sealing ring 209 inside the shell 100 provide sealing for its conveying process. The outer wall of the shell 100 is evenly opened with a first channel 200 and a second channel 201, so that different media can enter its interior through the first channel 200 and the second channel 201 on the outer wall of the shell 100, and then pass through the first transmission channel 200 and the second transmission channel 201 inside the rotating shaft 101. The delivery port 202 and the second delivery port 203 are simultaneously delivered to the rotating body, thereby completing the function of delivering different media to the rotating body equipment at the same time. By opening a cable groove 206 inside the rotating shaft 101, when the fixed part and the rotating part rotate relative to each other, the pipelines and lines of the delivery medium will not interfere with each other. By setting the first delivery port 202 and the second delivery port 203 to different models, the channels connected to the first delivery port 202 and the second delivery port 203 do not interfere with each other, so that the same medium can be delivered and multiple media can be delivered at the same time, with the characteristics of both integrity and independence of the delivery channels. The outer walls of the left ends of the first delivery port 202 and the second delivery port 203 are fixedly connected with the second sealing ring 20 5. The second sealing rings 205 on both sides are located in the left wall of the rotating shaft 101, thereby avoiding leakage when conveying to the rotating body. Bearings 207 are fixedly connected to both sides of the outer wall of the rotating shaft 101, so that the rotation of the rotating shaft 101 is more stable. The inner wall of the cable groove 206 is fixedly connected with an insulating layer to ensure the safety of the rotary joint. The interior of the ball shaft 208 is provided with a number of evenly distributed balls, which can reduce the friction between the rotating shaft 101 and the housing 100. A positioning ring 302 is fixedly connected to the left side of the pressure cover 300, and a positioning groove 303 is provided on the right side of the housing 100. The positioning ring 302 matches the positioning groove 303, so that the pressure cover 300 can be quickly installed at the required installation position.There are mounting holes 304 on both sides of the left end of the rotating shaft 101. The interiors of the mounting holes 304 on both sides are provided with threaded grooves, so that the rotating shaft 101 can be more conveniently mounted on the rotating body to be mounted.

[0023] Working principle: When the rotating body rotates, it drives the rotating shaft 101 to rotate. When the rotating shaft 101 rotates, the first sealing ring 204 and the third sealing ring 209 inside the shell 100 provide sealing for its transportation process. The outer wall of the shell 100 is evenly opened with a first channel 200 and a second channel 201, so that different media can enter its interior through the first channel 200 and the second channel 201 on the outer wall of the shell 100, and then be transported into the rotating body at the same time through the first delivery port 202 and the second delivery port 203 inside the rotating shaft 101, thereby completing the function of simultaneously transporting different media to the rotating body equipment. By opening a cable groove 206 inside the rotating shaft 101, when the fixed part and the rotating part rotate relative to each other, the pipelines and lines of the transported media will not interfere with each other. By setting the first delivery port 202 and the second delivery port 203 to different models, the channels connected to the first delivery port 202 and the second delivery port 203 do not interfere with each other, so that both the same medium and multiple media can be transported at the same time, with the characteristics of both integrity and independence of the delivery channel.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel rotary joint with good sealing performance, comprising a housing (100), characterized in that: The interior of the shell (100) is connected to a rotating shaft (101), a first channel (200) is evenly arranged on the left side of the outer wall of the shell (100), a second channel (201) is evenly arranged on the right side of the outer wall of the shell (100), a first delivery port (202) is arranged on the upper side of the inner cavity of the rotating shaft (101), a second delivery port (203) is arranged on the lower side of the inner cavity of the rotating shaft (101), the outer walls of the first channel (200) and the second channel (201) are both connected to a first sealing ring (204), and the rotating shaft (101) is provided with a first sealing ring (204). A cable groove (206) is provided inside, a ball shaft (208) is provided on the outer wall of the rotating shaft (101), the right ends of the first delivery port (202) and the second delivery port (203) are connected to a third sealing ring (209), a pressure cover (300) is installed on the right side of the shell (100), and fixing bolts (301) are provided on both sides of the inner cavity of the pressure cover (300), and the left ends of the fixing bolts (301) on both sides are located in the inner wall of the shell (100), and the outer wall of the shell (100) is connected to a stop plate (305) on both sides.

2. A multi-channel rotary joint with good sealing performance according to claim 1, characterized in that: The outer walls of the left ends of the first conveying port (202) and the second conveying port (203) are both connected with second sealing rings (205), and the second sealing rings (205) on both sides are located in the left wall of the rotating shaft (101).

3. The multi-channel rotary joint with good sealing performance according to claim 2, characterized in that: Bearings (207) are connected to both sides of the outer wall of the rotating shaft (101).

4. The multi-channel rotary joint with good sealing performance according to claim 3, characterized in that: An insulating layer is connected to the inner wall of the cable trough (206).

5. The multi-channel rotary joint with good sealing performance according to claim 4, characterized in that: A plurality of evenly distributed balls are arranged inside the ball shaft (208).

6. The multi-channel rotary joint with good sealing performance according to claim 5, characterized in that: A positioning ring (302) is connected to the left side of the pressure cover (300), and a positioning groove (303) is provided on the right side of the housing (100), and the positioning ring (302) matches the positioning groove (303).

7. The multi-channel rotary joint with good sealing performance according to claim 6, characterized in that: Mounting holes (304) are provided on both sides of the left end of the rotating shaft (101), and thread grooves are provided inside the mounting holes (304) on both sides.

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