Multi-channel gas-liquid rotating slip ring

Abstract

The utility model relates to the technical field of rotary joints, in particular to a multi-channel gas-liquid rotary slip ring which comprises a rotary gas shaft and a static shell, the rotary gas shaft is rotatably inserted into an inner ring of the static shell, a plurality of gas-liquid inlet pipes are movably inserted into the top of the static shell, a gas-liquid outlet is formed in the top of the rotary gas shaft, and a dust filter screen is embedded in each gas-liquid inlet pipe. A plurality of air guide ports are formed in the rotating air shaft; by arranging the dust filter screen, gas and liquid can be firstly filtered before entering the gas guide port, impurities mixed in the gas and liquid are blocked, cleanliness of the input gas and liquid is guaranteed, meanwhile, cleanliness of the interiors of the gas guide port and the gas-liquid discharge port is guaranteed, and then the gas and liquid push the plugging plate to rotate around the pin shaft to discharge the gas and liquid from the gas-liquid discharge port. When the rotary slip ring does not need to be used, the clockwork spring can cover the plugging plate on the gas-liquid discharge port due to the elasticity of the clockwork spring, so that the dustproof effect can be achieved, and the clean environment in the gas-liquid discharge port and the gas guide port can be further ensured.

Description

Technical Field

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

[0002] Multi-channel gas-liquid rotary joint belongs to the application category of mechanical sliding connection. It is also called gas slip ring, hydraulic slip ring, gas rotary joint, gas-liquid rotary joint. It is a precision power transmission device that realizes the transmission of gas pressure and hydraulic pressure between two relative rotating mechanisms. It is particularly suitable for unlimited continuous rotation and precision devices that need to transmit gas pressure and hydraulic oil power from a fixed position to a rotating position.

[0003] For example, the patent specification of the existing Chinese patent (Announcement No.: CN208487319U) discloses a multi-channel gas-liquid rotary slip ring, which can effectively and uninterruptedly transmit the medium 360 degrees during its dynamic rotation. It changes the traditional pipeline direct transmission medium and optimizes the pipeline distortion caused by the winding caused by the rotation during the transmission process.

[0004] However, in the implementation of relevant technologies, it was found that the multi-channel gas-liquid rotary slip ring of the above design has the following problems: although the multi-channel gas-liquid rotary slip ring can transmit the medium and has multi-channel gas-liquid input, there is no dust-proof filtering structure in either the holes for entering gas and liquid or the holes for discharging gas and liquid. This makes the multi-channel gas-liquid rotary slip ring have more impurities adhered to the inside when it is used for a long time or not in use, which may not only affect the gas-liquid transmission, but also cause blockage in serious cases.

[0005] In view of this, a multi-channel gas-liquid rotary slip ring is provided to overcome the above-mentioned defects. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a multi-channel gas-liquid rotary slip ring.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-channel gas-liquid rotating slip ring, comprising a rotating gas shaft and a static shell, the rotating gas shaft is rotatably inserted in the inner ring of the static shell, a plurality of gas-liquid inlet pipes are movably inserted at the top of the static shell, a gas-liquid outlet is provided at the top of the rotating gas shaft, a dust filter is embedded in the gas-liquid inlet pipe, a plurality of air guide ports are provided in the rotating gas shaft, the gas-liquid inlet pipe, the gas-liquid outlet and the air guide port are connected, a mounting seat is fixedly installed on the top of the rotating gas shaft, a pin shaft is rotatably arranged in the mounting seat, a sealing plate is arranged at one end of the pin shaft, the sealing plate is abutted against the gas-liquid outlet, two springs are symmetrically and movably sleeved on the pin shaft, and the two ends of the spring are respectively fixedly connected to the mounting seat and one side of the pin shaft.

[0008] As a further description of the above technical solution: an annular groove is opened on one side of the static housing, a bearing is fixedly installed in the annular groove, and the rotating air shaft is fixedly inserted in the inner ring of the bearing, which can reduce the friction force of the rotating air shaft rotating on the inner ring of the static housing, thereby reducing friction loss.

[0009] As a further description of the above technical solution: a sealing ring is fixedly installed at the end of the inner ring of the static housing, and the rotating air shaft is rotatably inserted into the inner ring of the sealing ring, which can ensure the sealing of the inner ring of the static housing and prevent leakage problems.

[0010] As a further description of the above technical solution: the outer surface of the gas-liquid inlet pipe is provided with an external thread, and a plurality of internal thread holes are opened in the static shell body. The gas-liquid inlet pipe is inserted into the internal thread hole through the external thread. By rotating the gas-liquid inlet pipe, the gas-liquid inlet pipe can drive the dust filter to be screwed out of the internal thread hole, so that the dust blocked on the dust filter can be cleaned conveniently.

[0011] As a further description of the above technical solution: a plurality of the gas-liquid inlet pipes are fixedly sleeved with a transmission sprocket, wherein the diameter of the middle transmission sprocket is slightly larger than the transmission sprockets on both sides, and the plurality of transmission sprockets are commonly tensioned and meshed with a transmission chain body. Since the plurality of gas-liquid inlet pipes are connected through the transmission sprocket and the transmission chain body, the plurality of gas-liquid inlet pipes can be rotated at the same time and screwed out of the internal threaded hole, thereby increasing the speed of disassembling the gas-liquid inlet pipes and facilitating dust treatment on the dust filter.

[0012] As a further description of the above technical solution: a fixing cylinder is fixedly installed on the top end of one of the gas-liquid inlet pipes, and the fixing cylinder is connected to the gas-liquid outlet, which can save labor when personnel rotate the gas-liquid inlet pipe.

[0013] As a further description of the above technical solution: the outer surface of the fixed cylinder is provided with anti-skid particles, which can increase the friction between the person's hand and the fixed cylinder, so that the person can apply force better.

[0014] As a further description of the above technical solution: the dust filter is made of 304 stainless steel. Since the liquid needs to be in direct contact with the dust filter, the rust rate of the dust filter can be effectively slowed down, thereby helping to extend the service life of the dust filter.

[0015] The utility model has the following beneficial effects:

[0016] The multi-channel gas-liquid rotary slip ring designed by the utility model can filter the gas and liquid first before entering the gas guide port by setting a dust filter, so that the impurities contained in the gas and liquid are blocked, thereby ensuring the cleanliness of the input gas and liquid, and at the same time ensuring the cleanliness of the inside of the gas guide port and the gas-liquid discharge port. Then the gas and liquid push the sealing plate to rotate around the pin shaft to discharge the gas and liquid from the gas-liquid discharge port. When the rotary slip ring is not needed, the spring will cover the sealing plate on the gas-liquid discharge port due to its own elastic force, which can play a dust-proof effect and further ensure the clean environment of the gas-liquid discharge port and the gas guide port.

[0017] The multi-channel gas-liquid rotating slip ring designed by the utility model is provided with a transmission sprocket and a transmission chain body. When the dust filter needs to be disassembled for cleaning and the fixed cylinder is rotated, multiple gas-liquid inlet pipes are rotated at the same time and screwed out of the internal threaded holes, so that dust on the dust filter is conveniently processed and the speed of disassembling the gas-liquid inlet pipes is improved. By providing a sealing ring, the sealing of the inner ring of the static housing can be guaranteed to prevent leakage problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the interior of the rotating air shaft and the static housing of the utility model in a half-section view;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the outside of the transmission sprocket of the utility model;

[0021] Figure 4 For this utility model Figure 2 The enlarged view of point A in the middle;

[0022] Figure 5 For this utility model Figure 1 Enlarged view of point B in the middle.

[0023] Legend:

[0024] 1. Rotating air shaft; 2. Static housing; 3. Annular groove; 4. Bearing; 5. Gas-liquid inlet pipe; 6. Gas-liquid outlet; 7. Dust filter; 8. Air guide port; 9. Sealing ring; 10. External thread; 11. Internal thread hole; 12. Transmission sprocket; 13. Transmission chain body; 14. Fixed cylinder; 15. Anti-skid particles; 16. Mounting seat; 17. Sealing plate; 18. Spring. DETAILED DESCRIPTION

[0025] Reference Figure 1-5The utility model provides a multi-channel gas-liquid rotary slip ring: it includes a rotating gas shaft 1 and a static shell 2, the rotating gas shaft 1 is rotatably plugged into the inner ring of the static shell 2, a plurality of gas-liquid inlet pipes 5 are movably plugged into the top of the static shell 2, a gas-liquid discharge port 6 is provided on the top of the rotating gas shaft 1, a dust filter 7 is embedded in the gas-liquid inlet pipe 5, a plurality of air guide ports 8 are provided in the rotating gas shaft 1, the gas-liquid inlet pipe 5, the gas-liquid discharge port 6 and the air guide port 8 are connected, a mounting seat 16 is fixedly installed on the top of the rotating gas shaft 1, a pin shaft is rotatably arranged in the mounting seat 16, a sealing plate 17 is arranged at one end of the pin shaft, the sealing plate 17 is against the gas-liquid discharge port 6, two springs 18 are symmetrically and movably sleeved on the pin shaft, and the two ends of the spring 18 are respectively fixedly connected to the mounting seat 16 and one side of the pin shaft.

[0026] In the specific implementation, the rotating air shaft 1 is first installed at the rotating end of the device, and then the end of the static housing 2 away from the rotating air shaft 1 is installed at the fixed end of the device, and then the rotating air shaft 1 rotates with the rotation of the device. In this process, a gas-liquid source is input from the fixed input structure gas-liquid inlet pipe 5 to input the gas-liquid source, and the corresponding gas guide port 8 on the rotating air shaft 1 receives the gas and liquid, and then transmits it to the gas-liquid discharge port 6 through the gas guide port 8, and flows out from the gas-liquid discharge port 6, so as to achieve the effect of multi-channel gas-liquid transportation. In addition, in the above-mentioned gas During the liquid transportation process, the gas and liquid are first filtered by the dust filter 7, so that the impurities contained in the gas and liquid are filtered out, ensuring the cleanliness of the input gas and liquid, and at the same time ensuring the cleanliness of the air guide port 8 and the gas-liquid discharge port 6. Then the gas and liquid push the sealing plate 17 to rotate around the pin shaft to discharge the gas and liquid from the gas-liquid discharge port 6. When the rotating slip ring is not needed, the spring 18 will cover the sealing plate 17 on the gas-liquid discharge port 6 due to its own elastic force, which can play a dust-proof effect and further ensure the clean environment inside the gas-liquid discharge port 6 and the gas guide port 8.

[0027] As a further implementation of the above technical solution: an annular groove 3 is opened on one side of the static housing 2, a bearing 4 is fixedly installed in the annular groove 3, and the rotating air shaft 1 is fixedly inserted in the inner ring of the bearing 4. The friction force of the rotating air shaft 1 rotating in the inner ring of the static housing 2 can be reduced, thereby reducing friction loss.

[0028] As a further implementation of the above technical solution: a sealing ring 9 is fixedly installed at the end of the inner ring of the static housing 2, and the rotating air shaft 1 is rotatably plugged into the inner ring of the sealing ring 9. The sealing of the inner ring of the static housing 2 can be ensured to prevent leakage.

[0029] As a further implementation of the above technical solution: the outer surface of the gas-liquid inlet pipe 5 is provided with an external thread 10, and a plurality of internal thread holes 11 are provided in the static housing 2, and the gas-liquid inlet pipe 5 is threadedly inserted into the internal thread holes 11 through the external thread 10. By rotating the gas-liquid inlet pipe 5, the gas-liquid inlet pipe 5 can drive the dust filter 7 to be screwed out from the internal thread holes 11, so that the dust blocked on the dust filter 7 can be easily cleaned.

[0030] As a further implementation of the above technical solution: a plurality of gas-liquid inlet pipes 5 are all fixedly sleeved with a transmission sprocket 12, wherein the diameter of the transmission sprocket 12 in the middle is slightly larger than the transmission sprockets 12 on both sides, and a transmission chain body 13 is commonly tensioned and meshed on the plurality of transmission sprockets 12. Since the plurality of gas-liquid inlet pipes 5 are transmission-connected through the transmission sprocket 12 and the transmission chain body 13, the plurality of gas-liquid inlet pipes 5 can be rotated and screwed out of the internal threaded hole 11 at the same time, thereby increasing the rate of disassembling the gas-liquid inlet pipes 5 and facilitating dust treatment on the dust filter 7.

[0031] As a further implementation of the above technical solution: a fixed cylinder 14 is fixedly installed at the top of one of the gas-liquid inlet pipes 5, the fixed cylinder 14 is connected to the gas-liquid outlet 6, and the outer surface of the fixed cylinder 14 is provided with anti-skid particles 15. The friction between the hand of the person and the fixed cylinder 14 can be increased, so that the person can apply force better.

[0032] As a further implementation of the above technical solution: the dust filter 7 is made of 304 stainless steel. Since the liquid needs to be in direct contact with the dust filter 7, the corrosion rate of the dust filter 7 can be effectively slowed down, thereby helping to extend the service life of the dust filter 7.

[0033] Working principle:

[0034] When using the utility model, first install the rotating air shaft 1 on the rotating end of the device, then install the end of the static shell 2 away from the rotating air shaft 1 on the fixed end of the device, and then the rotating air shaft 1 rotates with the rotation of the device. In this process, a gas-liquid source is input from the fixed input structure gas-liquid inlet pipe 5 to input the gas-liquid source, and the corresponding gas guide port 8 on the rotating air shaft 1 receives the gas and liquid, and then transmits it to the gas-liquid discharge port 6 through the gas guide port 8 and flows out from the gas-liquid discharge port 6, so that the effect of multi-channel gas-liquid transportation can be achieved. In addition, in the above gas-liquid transportation process, the gas and liquid are first filtered by the dust filter 7, so that the impurities contained in the gas and liquid are filtered, thereby ensuring the cleanliness of the input gas and liquid, and at the same time When the air guide port 8 and the air-liquid discharge port 6 are kept clean, the air and liquid push the sealing plate 17 to rotate around the pin shaft to discharge the air and liquid from the air-liquid discharge port 6. When the rotating slip ring is not needed, the spring 18 will cover the sealing plate 17 on the air-liquid discharge port 6 due to its own elastic force, which can play a dust-proof effect and further ensure the clean environment of the air-liquid discharge port 6 and the air guide port 8. When the dust filter 7 needs to be disassembled for cleaning, the fixed cylinder 14 is rotated. Since multiple air-liquid inlet pipes 5 are connected by the transmission sprocket 12 and the transmission chain body 13, multiple air-liquid inlet pipes 5 can be rotated at the same time and screwed out of the internal threaded hole 11, so that the dust filter 7 can be conveniently handled.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-channel gas-liquid rotary slip ring, comprising a rotating gas shaft (1) and a static housing (2), wherein the rotating gas shaft (1) is rotatably plugged into the inner ring of the static housing (2), and is characterized in that: A plurality of gas-liquid inlet pipes (5) are movably plugged into the top of the static housing (2); a gas-liquid outlet (6) is provided at the top of the rotating air shaft (1); a dust filter (7) is embedded in the gas-liquid inlet pipe (5); a plurality of air guide ports (8) are provided in the rotating air shaft (1); the gas-liquid inlet pipes (5), the gas-liquid outlet (6) and the air guide ports (8) are communicated; a mounting seat (16) is fixedly mounted on the top of the rotating air shaft (1); a pin is rotatably arranged in the mounting seat (16); a sealing plate (17) is arranged at one end of the pin; the sealing plate (17) abuts against the gas-liquid outlet (6); two springs (18) are symmetrically and movably sleeved on the pin; the two ends of the spring (18) are fixedly connected to the mounting seat (16) and one side of the pin, respectively.

2. A multi-channel gas-liquid rotary slip ring according to claim 1, characterized in that: An annular groove (3) is provided on one side of the static housing (2), a bearing (4) is fixedly installed in the annular groove (3), and the rotating air shaft (1) is fixedly inserted into the inner ring of the bearing (4).

3. A multi-channel gas-liquid rotary slip ring according to claim 1, characterized in that: A sealing ring (9) is fixedly mounted on the end of the inner ring of the static housing (2), and the rotating air shaft (1) is rotatably plugged into the inner ring of the sealing ring (9).

4. A multi-channel gas-liquid rotary slip ring according to claim 1, characterized in that: The outer surface of the gas-liquid inlet pipe (5) is provided with an external thread (10), a plurality of internal thread holes (11) are provided in the static housing (2), and the gas-liquid inlet pipe (5) is threadably inserted into the internal thread holes (11) via the external thread (10).

5. The multi-channel gas-liquid rotary slip ring according to claim 1, characterized in that: A plurality of the gas-liquid inlet pipes (5) are all fixedly sleeved with a transmission sprocket (12), wherein the diameter of the transmission sprocket (12) in the middle is slightly larger than the transmission sprockets (12) on both sides, and a transmission chain body (13) is commonly tensioned and meshedly connected to the plurality of transmission sprockets (12).

6. A multi-channel gas-liquid rotary slip ring according to claim 1, characterized in that: A fixed cylinder (14) is fixedly mounted on the top end of one of the gas-liquid inlet pipes (5), and the fixed cylinder (14) is in communication with the gas-liquid outlet (6).

7. A multi-channel gas-liquid rotary slip ring according to claim 6, characterized in that: The outer surface of the fixing cylinder (14) is provided with anti-skid particles (15).

8. The multi-channel gas-liquid rotary slip ring according to claim 1, characterized in that: The dust filter (7) is made of 304 stainless steel.

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