Sealed precise butt joint center connector for fluid transmission

Abstract

The utility model discloses a sealing precise butt joint center connector for fluid transmission, and relates to the technical field of connectors. End covers are arranged on the two sides of the shell, bearings are arranged on the two sides of an inner cavity of the shell, a main shaft is fixedly connected to inner cavities of the bearings, a through hole is formed in the surface of the main shaft, a sealing ring is fixedly connected to the inner cavity of the shell, and the inner wall of the sealing ring makes contact with the surface of the main shaft. And a mounting shell is arranged at the top of the shell. According to the utility model, the fluid joint is connected with the fluid supply pipeline and then is inserted into the mounting port, and the fluid flows into the transmission path of the calender roll through the inner cavity of the shell, the through hole in the surface of the main shaft and the cavity, so that the fluid can be orderly conveyed, and the working mode of synchronous liquid injection and rotation is realized; the fluid can be continuously supplied in the process that the main shaft drives the calendering roller to rotate, the fluid transmission requirement in a dynamic working scene is met, and the function collaboration and the working efficiency are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and in particular relates to a sealed and precise mating center connector for fluid transmission. Background Technology

[0002] The precision sealing and docking center joint for fluid transmission in calenders usually refers to a rotary joint, which is a key component in the fluid transmission system of calenders. It is mainly used to achieve a sealed connection and precise docking between rotating parts (such as calender rolls) and fixed fluid supply sources, ensuring that fluids (such as cooling water, heat transfer oil, etc.) can be transmitted stably and without leakage during rotation.

[0003] Currently, the existing calendering mill docking center joints use simple threaded connections or compression fittings. When faced with high-pressure and high-speed fluid transmission, these connections have poor sealing performance and are prone to leakage. Furthermore, they are inconvenient to inject fluid in real time while the mill is rotating, which not only affects production efficiency but may also pollute the production environment and even cause safety issues.

[0004] To address these issues, we provide a sealed, precision-fitting center connector for fluid transfer. Utility Model Content

[0005] The purpose of this invention is to provide a sealed and precise docking center connector for fluid transmission. By cooperating with the housing, spindle and fluid connector, it solves the problems of poor sealing and inconvenience in real-time fluid injection during rotation caused by the simple threaded or ferrule connection of the existing docking center connector.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a sealed precision docking center connector for fluid transmission, comprising a housing, end caps on both sides of the housing, bearings on both sides of the inner cavity of the housing, a main shaft fixedly connected to the inner cavity of the bearing, a through hole on the surface of the main shaft, a sealing ring fixedly connected to the inner cavity of the housing, the inner wall of the sealing ring contacting the surface of the main shaft, and a mounting shell on the top of the housing, the inner cavity of the mounting shell being provided with a fluid connector.

[0008] The present invention is further provided that mounting holes are provided on both sides of the top of the outer shell, and an oil injection nozzle is provided in the inner cavity of the mounting hole. The oil injection nozzle is installed on the top of the outer shell and communicates with the inner cavity of the outer shell. By injecting oil into the bearing inside the outer shell through the oil injection nozzle, the bearing can be lubricated and the wear of the bearing can be reduced.

[0009] The present invention is further configured such that a mounting plate is fixedly connected to one side of the surface of the main shaft, and the surface of the mounting plate is provided with mounting holes. Mounting screws are passed through the mounting holes on the surface of the mounting plate and screwed into the inner cavity of the connecting plate at one end of the calendering roll, thereby connecting the main shaft and the calendering roll.

[0010] The present invention is further configured such that a fixing hole is provided on the surface of the end cap, and an installation screw is provided in the inner cavity of the fixing hole. After several installation screws pass through the fixing hole on the surface of the end cap, they are screwed into the screw hole on one side of the outer shell, thereby fixing the end cap to one side of the outer shell.

[0011] The present invention is further configured such that a stabilizing sleeve is provided in the inner cavity of the outer shell and on one side of the bearing. The inner cavity of the stabilizing sleeve is movably connected to the surface of the main shaft. The stabilizing sleeve wraps around the surface of the main shaft, and the stability of the main shaft is maintained when it rotates by limiting the movement of the stabilizing sleeve.

[0012] The present invention is further configured such that a limiting groove is formed on the inner wall of the outer shell, and a ball is provided in the inner cavity of the limiting groove. One side of the ball contacts the surface of the main shaft. The ball rolls on the surface of the main shaft as the main shaft rotates. The ball reduces the friction between the surface of the main shaft and the inner wall of the outer shell, making the main shaft rotate more smoothly.

[0013] The present invention is further configured such that a compression pad is fixedly connected to one side of the stabilizing sleeve, and one side of the compression pad is in close contact with the surface of the bearing. The stabilizing sleeve presses the bearing into one side of the inner cavity of the outer shell through the compression pad, thereby improving the installation stability of the bearing and enabling the bearing to operate stably.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model achieves orderly fluid delivery by connecting the fluid connector to the fluid supply pipe and inserting it into the installation port. The fluid flows into the calendering roller through the inner cavity of the outer shell, the through hole on the surface of the main shaft, and the cavity. It also achieves a working mode in which liquid injection and rotation are carried out simultaneously. It can continuously supply fluid while the main shaft drives the calendering roller to rotate, meet the fluid transmission requirements in dynamic working scenarios, and ensure functional synergy and work efficiency.

[0016] 2. This utility model, by installing the sealing ring and bearing at designated positions within the inner cavity of the housing and installing end caps at both ends, can achieve precise positioning and sealing of the spindle, preventing fluid leakage. At the same time, the installation method of the spindle passing through the inner ring of the bearing and the inner cavity of the sealing ring, combined with the connection structure between the end caps and the housing, makes the installation positions of each component clear and facilitates assembly operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional view of a sealed, precision-fitting center connector for fluid transmission.

[0019] Figure 2 This is a schematic diagram of the internal structure of the outer shell of a sealed precision docking center connector for fluid transmission.

[0020] Figure 3 An exploded view of a sealed precision-fitting center joint for fluid transport, showing the installation of a housing and a fluid connector.

[0021] Figure 4 A cross-sectional view of a sealed, precision-fitting center connector for fluid transport. Figure 1 .

[0022] Figure 5 A cross-sectional view of a sealed, precision-fitting center connector for fluid transport. Figure 2 .

[0023] In the attached diagram: 1. Outer shell; 2. End cap; 3. Bearing; 4. Main shaft; 5. Through hole; 6. Sealing ring; 7. Mounting shell; 8. Fluid connector; 9. Oil nozzle; 10. Mounting plate; 11. Mounting screw; 12. Stabilizing sleeve. Detailed Implementation

[0024] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a sealed precision docking center connector for fluid transmission, including a housing 1, end caps 2 on both sides of the housing 1, bearings 3 on both sides of the inner cavity of the housing 1, a main shaft 4 fixedly connected to the inner cavity of the bearing 3, a through hole 5 on the surface of the main shaft 4, a sealing ring 6 fixedly connected to the inner cavity of the housing 1, the inner wall of the sealing ring 6 contacting the surface of the main shaft 4, and a mounting shell 7 on the top of the housing 1, with a fluid connector 8 in the inner cavity of the mounting shell 7.

[0027] Specifically: One end of the main shaft 4 is connected to the motor drive shaft, and the other end of the main shaft 4 is connected to the calendering roll. After the fluid connector 8 is connected to the fluid supply pipe, it is inserted into the inner cavity of the installation port. The fluid enters the inner cavity of the outer shell 1 through the fluid connector 8, and then flows into the cavity of the main shaft 4 through the through hole 5 opened on the surface of the main shaft 4. Finally, the fluid enters the calendering roll through the cavity of the main shaft 4. Liquid injection and rotation are carried out simultaneously.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, mounting holes are provided on both sides of the top of the outer casing 1. An oil injection nozzle 9 is provided in the inner cavity of the mounting hole. A mounting plate 10 is fixedly connected to one side of the surface of the main shaft 4. A mounting hole is provided on the surface of the mounting plate 10. A fixing hole is provided on the surface of the end cover 2. A mounting screw 11 is provided in the inner cavity of the fixing hole. A stabilizing sleeve 12 is provided in the inner cavity of the outer casing 1 and on the side of the bearing 3. The inner cavity of the stabilizing sleeve 12 is movably connected to the surface of the main shaft 4. A limiting groove is provided in the inner wall of the outer casing 1. A ball is provided in the inner cavity of the limiting groove. One side of the ball contacts the surface of the main shaft 4. The ball rolls on the surface of the main shaft 4 as the main shaft 4 rotates. A compression pad is fixedly connected to one side of the stabilizing sleeve 12. One side of the compression pad is in tight contact with the surface of the bearing 3.

[0030] Specifically: the grease nipple 9 is installed on the top of the housing 1 and is connected to the inner cavity of the housing 1. Oil is injected into the bearing 3 inside the housing 1 through the grease nipple 9 to lubricate the bearing 3 and reduce its wear. The mounting screw 11 is passed through the mounting hole on the surface of the mounting plate 10 and screwed into the inner cavity of the connecting disc at one end of the calender roll, thus connecting the main shaft 4 to the calender roll. Several mounting screws 11 are passed through the fixing hole on the surface of the end cover 2 and screwed into the screw hole on one side of the housing 1, thus fixing the end cover 2 to one side of the housing 1. The stabilizing sleeve 12 wraps around the surface of the main shaft 4. The stabilizing sleeve 12 limits the rotation of the main shaft 4, maintaining its stability. The ball bearings reduce the friction between the surface of the main shaft 4 and the inner wall of the housing 1, making the rotation of the main shaft 4 smoother. The stabilizing sleeve 12 presses the bearing 3 tightly against one side of the inner cavity of the housing 1 through the compression pad, thereby improving the installation stability of the bearing 3 and ensuring its stable operation.

[0031] The working principle of this utility model is as follows: After installing the sealing ring 6 and bearing 3 in the designated position inside the cavity of the housing 1, end caps 2 are installed at both ends of the housing 1. The main shaft 4 is inserted into the cavity of the housing 1, passing through the inner ring of the bearing 3 and the inner cavity of the sealing ring 6. One end of the main shaft 4 is connected to the motor drive shaft, and the other end of the main shaft 4 is connected to the calendering roller. The fluid connector 8 is connected to the fluid supply pipe and then inserted into the cavity of the installation port. The fluid enters the cavity of the housing 1 through the fluid connector 8, and then flows into the cavity of the main shaft 4 through the through hole 5 opened on the surface of the main shaft 4. Finally, the fluid enters the calendering roller through the cavity of the main shaft 4. Liquid injection and rotation are carried out simultaneously.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A sealed precision mating center connector for fluid transmission, comprising a housing (1), characterized in that: Both sides of the outer shell (1) are provided with end caps (2), both sides of the inner cavity of the outer shell (1) are provided with bearings (3), the inner cavity of the bearings (3) is fixedly connected with a spindle (4), the surface of the spindle (4) is provided with a through hole (5), the inner cavity of the outer shell (1) is fixedly connected with a sealing ring (6), the inner wall of the sealing ring (6) is in contact with the surface of the spindle (4), the top of the outer shell (1) is provided with a mounting shell (7), and the inner cavity of the mounting shell (7) is provided with a fluid connector (8).

2. The sealed precision mating center connector for fluid transmission according to claim 1, characterized in that: The top of the outer casing (1) is provided with mounting holes on both sides, and an oil injection nozzle (9) is provided in the inner cavity of the mounting hole.

3. The sealed precision mating center connector for fluid transmission according to claim 1, characterized in that: A mounting plate (10) is fixedly connected to one side of the surface of the spindle (4), and the surface of the mounting plate (10) is provided with mounting holes.

4. The sealed precision mating center connector for fluid transmission according to claim 1, characterized in that: The end cap (2) has a fixing hole on its surface, and the inner cavity of the fixing hole is provided with a mounting screw (11).

5. A sealed precision mating center connector for fluid transmission according to claim 1, characterized in that: A stabilizing sleeve (12) is provided in the inner cavity of the outer shell (1) and on one side of the bearing (3). The inner cavity of the stabilizing sleeve (12) is movably connected to the surface of the main shaft (4).

6. A sealed precision mating center connector for fluid transmission according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a limiting groove, and the inner cavity of the limiting groove is provided with a ball, one side of which is in contact with the surface of the main shaft (4).

7. A sealed precision mating center connector for fluid transmission according to claim 5, characterized in that: A compression pad is fixedly connected to one side of the stabilizing sleeve (12), and one side of the compression pad is in close contact with the surface of the bearing (3).

Images