An ultra-high pressure large flow rotary joint

Abstract

The utility model relates to rotary joint technical field, and disclose a kind of superhigh pressure large flow rotary joint, including connecting pipe, the left end of the connecting pipe is provided with first rotating part, the right end of the connecting pipe is provided with second rotating part, the first rotating part is provided with lubricating mechanism, and the inside fixed mounting of the first rotating part has first bearing. The utility model, when the first bearing needs to be lubricated, user can insert injection head into oil injection hole inside and press ball downward, then press lubricant and inject lubricating liquid into the inside of oil injection cavity, and lubricating liquid enters the inside of first bearing by oil injection cavity, connecting hole and oil inlet hole, after lubricating liquid injection is completed, injection head is separated from oil injection hole, at this time, ball moves upward under the action of spring and seals oil injection hole, lubricate bearing component quickly, improve the service life of rotary joint.

Description

Technical Field

[0001] This utility model relates to the field of rotary joint technology, specifically to an ultra-high pressure, high flow rotary joint. Background Technology

[0002] A rotary joint is a pipe connection device that allows the connected pipes to rotate relative to each other. It can be used to transmit various media such as gas, liquid, and oil. The application fields of rotary joints cover almost all processing and manufacturing industries, such as metallurgy, machine tools, power generation, petroleum, rubber, plastics, textiles, printing and dyeing, pharmaceuticals, cigarettes, papermaking, food, and feed processing. Common rotary joints include hydraulic rotary joints, high-pressure rotary joints, multi-channel rotary joints, high-speed rotary joints, high-temperature rotary joints, single-channel rotary joints, special-purpose rotary joints, LED-specific rotary joints, excavator-specific rotary joints, and machine tool-specific rotary joints.

[0003] According to Chinese Patent Publication No. CN217634437U, a high-pressure, high-flow rotary joint includes: a first rotating part and a second rotating part; a connecting pipe for connecting the first rotating part and the second rotating part; the first rotating part and the second rotating part are identically arranged, and each of the first rotating part and the second rotating part includes a hollow tube body and a rotating ring rotatably installed inside the hollow tube body; a rotating bearing is embedded in the inner wall of the hollow tube body, the rotating ring is fixed to the inner ring of the rotating bearing, and an annular groove is formed on the rotating ring; annular blocks are integrally formed at both ends of the connecting pipe, and the annular blocks are engaged inside the annular groove; pipe connecting assemblies are respectively installed on the first rotating part and the second rotating part. This utility model allows for adjustment of the total length according to actual installation requirements and allows for selection of different pipe connecting assemblies based on actual conditions, making it widely applicable.

[0004] After prolonged use, the bearings of the aforementioned rotary joints are prone to wear. Since the bearings are located inside the joint, it is inconvenient to periodically add lubricant for lubrication. Therefore, an ultra-high pressure, high flow rotary joint is proposed to solve the aforementioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an ultra-high pressure, high flow rotary joint that addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an ultra-high pressure and high flow rotary joint, including a connecting pipe, a first rotating part is provided at the left end of the connecting pipe, a second rotating part is provided at the right end of the connecting pipe, a lubrication mechanism is provided on the first rotating part, and a first bearing is fixedly installed inside the first rotating part;

[0007] The lubrication mechanism includes an oil injection chamber and a ball bearing. The ball bearing is disposed inside the oil injection chamber, and a spring is disposed inside the oil injection chamber. An oil injection hole is provided on the outer wall of the first rotating part, a connecting hole is provided on the inner wall of the first rotating part, and an oil inlet hole is provided on the outer ring of the first bearing.

[0008] Preferably, the left end of the connecting pipe is fixedly installed on the inner wall of the inner ring of the first bearing, and the oil inlet hole is connected to the connecting hole. Through the connection of the oil inlet hole and the connecting hole, the lubricant inside the oil injection chamber can enter the interior of the first bearing.

[0009] Preferably, the lower end of the spring abuts against the inner bottom wall of the oil injection chamber, and the upper end of the spring abuts against the ball bearing. The arrangement of the spring allows the ball bearing to seal the oil injection hole.

[0010] Preferably, the oil injection hole is connected to the oil injection chamber, and a second bearing is fixedly installed at the right end of the connecting pipe. The outer ring of the second bearing is fixedly installed on the inner wall of the second rotating part. The oil injection hole allows the user to conveniently inject lubricant into the oil injection chamber.

[0011] Preferably, the first rotating part is threaded with a cap, which can prevent the connecting tube from detaching from the inside of the first rotating part.

[0012] Preferably, the outer wall of the cover is provided with external threads, and the inner wall of the right end of the first rotating part is provided with internal threads. The threads facilitate the disassembly of the cover.

[0013] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0014] 1. When the first bearing needs lubrication, the user can insert the injection head into the oil injection hole and press the ball down. Then, press the lubricant to inject the lubricant into the oil injection chamber. The lubricant enters the first bearing through the oil injection chamber, connecting hole, and oil inlet hole. After the lubricant injection is completed, the injection head is pulled out of the oil injection hole. At this time, the ball moves upward under the action of the spring to seal the oil injection hole, which facilitates rapid lubrication of the bearing components and improves the service life of the rotary joint.

[0015] 2. This ultra-high pressure, high flow rate rotary joint, by setting a cover on the first rotating part, can limit the connection pipe and prevent the connection pipe from detaching from the first rotating part, thus further improving the practicality of the rotary joint. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the connecting pipe structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing structure of this utility model.

[0021] In the diagram: 1. Connecting pipe; 2. Lubrication mechanism; 201. Oil injection chamber; 202. Oil injection hole; 203. Ball bearing; 204. Spring; 205. Oil inlet hole; 206. Connecting hole; 3. First rotating part; 4. Second rotating part; 5. Cover; 6. First bearing; 7. Second bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0026] Please see Figure 1-5 One embodiment of this utility model is: an ultra-high pressure high flow rotary joint, including a connecting pipe 1, a first rotating part 3 is provided at the left end of the connecting pipe 1, a second rotating part 4 is provided at the right end of the connecting pipe 1, a lubrication mechanism 2 is provided on the first rotating part 3, and a first bearing 6 is fixedly installed inside the first rotating part 3.

[0027] The lubrication mechanism 2 includes an oil injection chamber 201 and a ball bearing 203. The ball bearing 203 is disposed inside the oil injection chamber 201, and a spring 204 is disposed inside the oil injection chamber 201. An oil injection hole 202 is provided on the outer wall of the first rotating part 3, and a connecting hole 206 is provided on the inner wall of the first rotating part 3. An oil inlet hole 205 is provided on the outer ring of the first bearing 6. When the first bearing 6 needs to be lubricated, the user can insert the injection head into the oil injection hole 202 and press the ball bearing 203 downward, and then press the lubricant to inject the lubricant into the oil injection chamber 201. The lubricant enters the first bearing 6 through the oil injection chamber 201, the connecting hole 206, and the oil inlet hole 205. After the lubricant is injected, the injection head is withdrawn from the oil injection hole 202. At this time, the ball bearing 203 moves upward under the action of the spring 204 to seal the oil injection hole 202, which facilitates rapid lubrication of the bearing components and improves the service life of the rotary joint.

[0028] The left end of the connecting pipe 1 is fixedly installed on the inner wall of the inner ring of the first bearing 6. The oil inlet 205 is connected to the connecting hole 206. Through the connection of the oil inlet 205 and the connecting hole 206, the lubricant inside the oil injection chamber 201 can enter the interior of the first bearing 6.

[0029] The lower end of the spring 204 abuts against the inner bottom wall of the oil filling chamber 201, and the upper end of the spring 204 abuts against the ball 203. The arrangement of the spring 204 allows the ball 203 to seal the oil filling hole 202.

[0030] The oil injection hole 202 is connected to the oil injection chamber 201. The right end of the connecting pipe 1 is fixedly installed with a second bearing 7. The outer ring of the second bearing 7 is fixedly installed on the inner wall of the second rotating part 4. With the setting of the oil injection hole 202, the user can conveniently inject lubricant into the oil injection chamber 201.

[0031] Working principle: When the first bearing 6 needs to be lubricated, the user can insert the injection head into the oil injection hole 202 and press the ball 203 downwards. Then, press the lubricant to inject the lubricant into the oil injection chamber 201. The lubricant enters the first bearing 6 through the oil injection chamber 201, the connecting hole 206, and the oil inlet hole 205. After the lubricant is injected, the injection head is pulled out from the oil injection hole 202. At this time, the ball 203 moves upwards under the action of the spring 204 to seal the oil injection hole 202, which facilitates the rapid lubrication of the bearing components and improves the service life of the rotary joint.

[0032] Please see Figure 1-5 Based on the above embodiments, in another embodiment of the present invention, the upper thread of the first rotating part 3 is connected to a cover 5, and the cover 5 can prevent the connecting tube 1 from detaching from the inside of the first rotating part 3.

[0033] The outer wall of the cover 5 is provided with external threads, and the inner wall of the right end of the first rotating part 3 is provided with internal threads. The cover 5 can be easily disassembled by means of the threads.

[0034] Working principle: By setting a cover 5 on the first rotating part 3, the cover 5 can limit the connection tube 1, preventing the connection tube 1 from detaching from the first rotating part 3, and further improving the practicality of the rotary joint.

[0035] This utility model provides an ultra-high pressure, high flow rate rotary joint. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A high-pressure, high-flow rotary joint, comprising a connecting pipe (1), characterized in that: The left end of the connecting pipe (1) is provided with a first rotating part (3), the right end of the connecting pipe (1) is provided with a second rotating part (4), the first rotating part (3) is provided with a lubrication mechanism (2), and the first rotating part (3) is fixedly installed with a first bearing (6). The lubrication mechanism (2) includes an oil injection chamber (201) and a ball (203). The ball (203) is disposed inside the oil injection chamber (201). A spring (204) is disposed inside the oil injection chamber (201). An oil injection hole (202) is provided on the outer wall of the first rotating part (3). A connecting hole (206) is provided on the inner wall of the first rotating part (3). An oil inlet hole (205) is provided on the outer ring of the first bearing (6).

2. The ultra-high pressure, high flow rate rotary joint according to claim 1, characterized in that: The left end of the connecting pipe (1) is fixedly installed on the inner wall of the inner ring of the first bearing (6), and the oil inlet (205) is connected to the connecting hole (206).

3. The ultra-high pressure, high flow rate rotary joint according to claim 1, characterized in that: The lower end of the spring (204) abuts against the inner bottom wall of the oil injection chamber (201), and the upper end of the spring (204) abuts against the ball (203).

4. The ultra-high pressure, high flow rate rotary joint according to claim 1, characterized in that: The oil injection hole (202) is connected to the oil injection cavity (201). The right end of the connecting pipe (1) is fixedly installed with a second bearing (7). The outer ring of the second bearing (7) is fixedly installed on the inner wall of the second rotating part (4).

5. The ultra-high pressure, high flow rate rotary joint according to claim 1, characterized in that: The first rotating part (3) is threaded with a cover (5).

6. The ultra-high pressure, high flow rate rotary joint according to claim 5, characterized in that: The outer wall of the cover (5) is provided with external threads, and the inner wall of the right end of the first rotating part (3) is provided with internal threads.

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