Spiral waterproof mechanism in high-speed rotating joint

Abstract

The utility model relates to the technical field of high-speed rotating joints, and discloses a spiral waterproof mechanism in a high-speed rotating joint, which comprises a rotating joint body, a waterproof component is arranged in the rotating joint body, and the lower part of the rotating joint body is fixedly connected with a drainage hole; the waterproof assembly comprises a rotating body shaft, the rotating body shaft is installed in the rotating joint body, an oil retainer is installed on the right side of the outer portion of the rotating body shaft, a disc oil retainer is arranged on the lower portion of the oil retainer, an O-shaped sealing ring is installed on the lower portion of the oil retainer, and a bearing is installed on the left side of the outer portion of the rotating body shaft. And the oil retainer adopts a spiral line type waterproof groove design. According to the rotary joint, leaked liquid is attached to the inclined spiral groove and is guided and discharged through centrifugal force generated by high-speed rotation through the spiral line type waterproof structure, the liquid is prevented from entering the bearing, the service life of the rotary joint is effectively prolonged, the maintenance cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -speed rotary joint technical field especially relates to a spiral waterproof mechanism in high -speed rotary joint. BACKGROUND

[0002] High -speed rotary joint is a kind of key connecting device for transmitting fluid (such as hydraulic oil, water, gas etc.) between static pipeline and high -speed rotating equipment, it can realize the continuous, reliable delivery of high -pressure fluid while the equipment high -speed rotates, and prevent leakage.

[0003] The conventional high -speed rotary joint lacks waterproof assembly when using, and the overflowed water is easy to enter the bearing interior, causes bearing corrosion and abrasion, and the service life of bearing will decline, thereby greatly reducing the service life of high -speed rotary joint, increase maintenance and replacement cost, reduce production efficiency. UTILITY MODEL CONTENT

[0004] In order to make up for the above insufficient, the utility model provides a spiral waterproof mechanism in high -speed rotary joint, aims at improving the conventional high -speed rotary joint in prior art when using, lacking waterproof assembly, causing the overflowed water to be easy to enter the bearing interior, bearing corrosion and abrasion, and the service life of bearing will decline.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A spiral waterproof mechanism in high -speed rotary joint, including rotary joint body, waterproof assembly is provided in the rotary joint body, and the rotary joint body lower part is fixedly connected with drain hole;

[0007] Waterproof assembly includes rotor shaft, the rotor shaft is installed in the inside of rotary joint body, the oil baffle ring is installed on the outside right side of rotor shaft, the disc oil baffle body is provided in the lower part of oil baffle ring, the O type sealing ring is installed in the lower part of oil baffle ring, the oil baffle ring adopts spiral line type waterproof groove design, prevents liquid from entering bearing.

[0008] Further, the guide sleeve is installed on the inside right side of rotary joint body, and sealing gasket is arranged in the guide sleeve.

[0009] Further, the spring is sleeved on the outside of guide sleeve.

[0010] Further, the high -pressure liquid inlet is fixedly connected on the outside right side of rotary joint body.

[0011] Further, the high -pressure liquid outlet is fixedly connected on the outside left side of rotary joint body.

[0012] Further, the material of O type sealing ring is rubber material.

[0013] The utility model has the advantages of the following:

[0014] In the utility model, the spiral line type waterproof structure can discharge the leaked liquid when the rotary joint rotates at high speed, the leaked liquid generates great centrifugal force when rotating at high speed and is attached to the spiral line type groove and is discharged along the inclination angle of the spiral groove, so that the bearing does not enter water, the service life of the rotary joint is prolonged, the cost of replacement and maintenance is reduced, the cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a plan view of a spiral waterproof mechanism in a high-speed rotary joint according to the utility model;

[0016] Figure 2 It is an enlarged view of structure A in the utility model; Figure 1

[0017] Figure 3 It is a high-pressure liquid outlet structure schematic view of a spiral waterproof mechanism in a high-speed rotary joint according to the utility model;

[0018] Figure 4 It is a water drain hole structure schematic view of a spiral waterproof mechanism in a high-speed rotary joint according to the utility model.

[0019] Legend:

[0020] 1, oil baffle ring; 2, disc oil baffle body; 3, O-shaped sealing ring; 4, rotating shaft; 5, guide sleeve; 6, bearing; 7, spring; 8, rotary joint body; 9, high-pressure liquid inlet; 10, high-pressure liquid outlet; 11, water drain hole; 12, sealing gasket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Reference Figure 1 and Figure 2 ​The utility model provides an embodiment: a kind of spiral waterproof mechanism in high-speed rotary joint, including rotary joint body 8, waterproof assembly is arranged in rotary joint body 8, by setting waterproof assembly can avoid the leakage of liquid, rotary joint body 8 lower part is fixedly connected with drain hole 11, by setting drain hole 11 it is convenient for the discharge of liquid, rotary joint body 8 outside right side is fixedly connected with high-pressure liquid inlet 9, by setting high-pressure liquid inlet 9 it is convenient for the entry of liquid, rotary joint body 8 outside left side is fixedly connected with high-pressure liquid outlet 10, by setting high-pressure liquid outlet 10 it is convenient for the discharge of liquid, rotary joint body 8 inside right side is installed with guide sleeve 5, sealing gasket 12 is arranged in guide sleeve 5, spring 7 is sleeved outside guide sleeve 5, the effect of spring 7 is to provide pre-tightening force for sealing gasket 12, it is guaranteed that sealing gasket 12 and rotator shaft 4 always keep good sealing state, prevent high-pressure liquid leakage, adapt to vibration and gap change in work, improve sealing performance and equipment stability;

[0023] Referring to Figure 1 And Figure 4 , waterproof assembly includes rotator shaft 4, rotator shaft 4 is installed in the inside of rotary joint body 8, rotator shaft 4 outside right side is installed with oil baffle 1, oil baffle 1 lower part is provided with disc oil baffle body 2, oil baffle 1 lower part is installed with O type sealing ring 3, rotator shaft 4 outside left side is installed with bearing 6, oil baffle 1 adopts spiral line type waterproof groove design, prevent liquid into bearing 6, rotator shaft 4 outside right side is installed with oil baffle 1, its effect is cooperation with disc oil baffle body 2, by spiral line groove type waterproof structure, residual liquid is guided and discharged using centrifugal force when high-speed rotation, prevent liquid into bearing 6 area, play the role of sealing and waterproof protection, to extend the service life of equipment, the material of O type sealing ring 3 is rubber material, can form effective dynamic sealing between rotator shaft 4 and guide sleeve 5, prevent high-pressure liquid leakage.

[0024] Specifically, in the horizontally installed disengaging high-speed rotary joint, when high-pressure liquid is supplied or stopped, a small amount of liquid will inevitably enter the rotary joint body 8 at the closing and disengaging moment, most of the liquid entering the joint body will be smoothly discharged through the designed drain hole 11, and a small amount of residual liquid may enter the gap between the rotating body of the oil retaining ring 1 and the non-rotating body of the disc oil retaining body 2. To solve this problem of residual liquid leakage, a spiral groove type waterproof structure is specially designed between the oil retaining ring 1 and the disc oil retaining body 2. This structure sets an inclined angle on the surface of the spiral groove, and combines the dynamic characteristics of the rotary joint during operation to achieve the functions of waterproofing and flow guiding. When the rotary joint enters a high-speed running state, the rotating shaft 4 drives the oil retaining ring 1 to rotate at high speed, generating a strong centrifugal force. This centrifugal force causes the residual liquid to be quickly thrown outward and attached to the surface of the spiral groove. With the inclined angle of the spiral groove, the liquid is gradually guided to the outside, achieving rapid discharge of the liquid and preventing it from further entering the bearing 6 area. In addition, when the rotary joint stops working, the residual liquid naturally accumulates below the oil retaining ring 1 under the action of gravity, and the inclined angle of the designed spiral groove can still guide the residual liquid to be smoothly discharged, preventing the liquid from accumulating for a long time. This design not only makes the liquid discharge more efficient, but also avoids the penetration of liquid into critical components such as the bearing 6 area, protecting the bearing 6 from liquid corrosion and wear, maintaining the dryness and normal operation of the bearing 6. Through this design, the problem of bearing 6 damage caused by liquid leakage in traditional high-speed rotary joints is effectively solved, significantly extending the service life of the rotary joint and reducing the frequency of equipment maintenance and replacement costs.

[0025] Working principle: In the horizontally installed disengaging high-speed rotary joint, when high-pressure liquid is supplied or stopped, a small amount of liquid will inevitably enter the rotary joint body 8 at the closing and disengaging moment, most of the liquid entering the joint body will be smoothly discharged through the drain hole 11, and a small amount of residual liquid may enter the gap between the rotating body of the oil retaining ring 1 and the non-rotating body of the disc oil retaining body 2. A spiral groove type waterproof structure is designed between the oil retaining ring 1 and the disc oil retaining body 2. This structure sets an inclined angle on the spiral groove, and utilizes the centrifugal force generated by the high-speed rotation of the rotating shaft 4 of the rotary joint to cause the residual liquid to adhere to the spiral groove and be guided out along the inclined angle. When the rotary joint stops working, the residual liquid naturally accumulates below the oil retaining ring 1 under the action of gravity, and can still flow out through the inclined angle of the spiral groove. This design effectively prevents liquid from entering critical components such as the bearing 6 area, thereby extending the service life of the rotary joint, reducing maintenance costs, and improving the stability and production efficiency of the equipment.

[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A spiral waterproofing mechanism in a high-speed rotary joint, comprising a rotary joint body (8), characterized in that: The waterproof assembly is internally provided with a waterproof assembly, and the lower part of the rotating joint body (8) is fixedly connected with a drain hole (11); The waterproof assembly includes a rotating shaft (4) installed in the interior of the rotating joint body (8), an oil retaining ring (1) installed on the outer right side of the rotating shaft (4), a disc oil retaining body (2) provided on the lower part of the oil retaining ring (1), an O-shaped sealing ring (3) installed on the lower part of the oil retaining ring (1), and a bearing (6) installed on the outer left side of the rotating shaft (4); the oil retaining ring (1) is designed in a spiral line type waterproof groove to prevent liquid from entering the bearing (6).

2. A spiral waterproof mechanism in a high-speed rotary joint according to claim 1, characterized in that: The interior right side of the rotating joint body (8) is installed with a guide sleeve (5) internally provided with a sealing gasket (12).

3. A spiral waterproof mechanism in a high-speed rotary joint according to claim 2, characterized in that: The outer part of the guide sleeve (5) is sleeved with a spring (7).

4. A spiral waterproof mechanism in a high-speed rotary joint according to claim 1, characterized in that: The outer right side of the rotating joint body (8) is fixedly connected with a high-pressure liquid inlet (9).

5. A spiral waterproof mechanism in a high-speed rotary joint according to claim 1, characterized in that: The outer left side of the rotating joint body (8) is fixedly connected with a high-pressure liquid outlet (10).

6. A spiral waterproof mechanism in a high-speed rotary joint according to claim 1, characterized in that: The material of the O-shaped sealing ring (3) is rubber.

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