A water sealing mechanism for a rotating spindle

Abstract

The present invention provides a water sealing mechanism for a rotating spindle, including a rotating baffle, a connecting plate, a rotating end cover, an inner ring bracket, a water supply joint, an outer ring bracket, a fixed plate, an adjustment cover, and a plurality of packings. The rotating baffle and the connecting plate are both connected to the rotating shaft end, the rotating end cover is fixed to the connecting plate, the packings are sequentially sleeved on the rotating end cover, the inner ring bracket and the outer ring bracket are both fixed to the fixed plate, the inner ring bracket is located in the outer ring bracket, the fixed plate is connected to the fixed end plate of the main machine, the packings and the adjustment cover are both located between the inner ring bracket and the outer ring bracket, the adjustment cover is located between the packing and the fixed plate, and the water supply joint is connected to the outer ring bracket. The present invention creates the water sealing mechanism for a rotating spindle, which ensures that the flaw detector has good water sealing and stable operation.

Description

Technical Field

[0001] The invention belongs to the field of flaw detectors, and in particular relates to a water sealing mechanism used on a rotating spindle. Background Art

[0002] The water sealing structure of high-speed contact flaw detectors has always been a technical difficulty. The probe shoe is installed on the rotating main shaft, and water must be transmitted from the non-rotating structure to the probe shoe. The middle must involve a rotating dynamic seal for coupling water. However, the sealing effect of the existing mechanism is not good, and conventional sealing rings cannot play a supporting role. Summary of the invention

[0003] In view of this, the invention aims to propose a water sealing mechanism for a rotating spindle to ensure that the flaw detector is in good water sealing condition and operates stably.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A water sealing mechanism for a rotating main shaft comprises a rotating baffle, a connecting plate, a rotating end cover, an inner ring bracket, a water supply joint, an outer ring bracket, a fixed plate, an adjustment cover, and a plurality of packings, wherein the rotating baffle and the connecting plate are both connected to the rotating shaft end, the rotating end cover is fixed to the connecting plate, the packings are sequentially sleeved on the rotating end cover, the inner ring bracket and the outer ring bracket are both fixed to the fixed plate, the inner ring bracket is located inside the outer ring bracket, the fixed plate is connected to the fixed end plate of the main machine, the packing and the adjustment cover are both located between the inner ring bracket and the outer ring bracket, the adjustment cover is located between the packing and the fixed plate, and the water supply joint is connected to the outer ring bracket.

[0006] Furthermore, a top screw is arranged on the fixing plate, and the top screw is located on one side of the adjusting cover, and the adjusting cover pre-tightens the packing through the top screw.

[0007] Furthermore, a water divider is provided on the rotating baffle, the water divider and the connecting plate are respectively located on both sides of the rotating baffle, and the water divider is connected to the main engine probe shoe.

[0008] Furthermore, the rotating end cover is provided with a water injection hole; the connecting plate and the water distributor are both provided with a water injection hole.

[0009] Furthermore, the water sealing mechanism is also provided with a plurality of first sealing rings and a plurality of second sealing rings, wherein the first sealing rings are respectively located between the adjustment cover and the outer ring bracket and the inner ring bracket, and the second sealing rings are located between the connecting plate and the rotating end cover.

[0010] Furthermore, the fixing plate is connected to the fixed end plate of the host through a connecting guide column.

[0011] Compared with the prior art, the water sealing mechanism for the rotating spindle created by the present invention has the following advantages:

[0012] (1) The water sealing mechanism for the rotating spindle created by the present invention ensures that the flaw detector has good water sealing and stable operation.

[0013] (2) The water sealing mechanism for the rotating main shaft created by the present invention adjusts the screw-in depth of the bolt to move the adjusting cover in the horizontal direction, thereby pre-tightening the packing. After the packing is tightened by the adjusting cover, it will produce a certain amount of deformation, so that it sticks to the inner side of the outer ring bracket and the outer side of the inner ring bracket, achieving a water sealing effect; at the same time, the sealing structure also plays a role in supporting the rotation of the rotating body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 A side view of a water sealing mechanism for a rotating spindle according to an embodiment of the present invention;

[0016] Figure 2 A front view of a water sealing mechanism for a rotating spindle according to an embodiment of the present invention.

[0017] Description of reference numerals:

[0018] 1-rotating baffle; 2-connecting plate; 3-rotating end cover; 4-inner ring bracket; 5-water supply joint; 6-outer ring bracket; 7-fixing plate; 8-adjusting cover; 9-packing; 10-first sealing ring; 11-second sealing ring; 12-water distributor; 13-connecting guide column; 14-top screw. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0023] like Figure 1-2 As shown, a water sealing mechanism for a rotating main shaft comprises a rotating baffle 1, a connecting plate 2, a rotating end cover 3, an inner ring bracket 4, a water supply joint 5, an outer ring bracket 6, a fixing plate 7, an adjusting cover 8, and 6 packings 9. The rotating baffle 1 and the connecting plate 2 are connected to the rotating shaft end by means of hexagon socket countersunk screws, the rotating end cover 3 is fixed to the connecting plate 2 by means of screws, the packings 9 are sequentially sleeved on the rotating end cover 3, the inner ring bracket 4 and the outer ring bracket 6 are fixed to the fixing plate 7, the inner ring bracket 4 is located in the outer ring bracket 6, the fixing plate 7 is connected to the main fixed end plate by means of a connecting guide column 13, the packings 9 and the adjusting cover 8 are located between the inner ring bracket 4 and the outer ring bracket 6, the adjusting cover 8 is located between the packings 9 and the fixing plate 7, the adjusting cover 8 pre-tightens the packings 9 by means of a top screw 14, and the water supply joint 5 is connected to the outer ring bracket 6.

[0024] The fixing plate 7 is provided with a top screw 14 , and the top screw 14 is located at one side of the adjusting cover 8 . The pressure exerted by the top screw 14 on the adjusting cover 8 enables the adjusting cover 8 to pre-tighten the packing 9 .

[0025] The water sealing mechanism is also provided with four first sealing rings 10 and two second sealing rings 11. The first sealing rings 10 are respectively located between the adjustment cover 8 and the outer ring bracket 6 and the inner ring bracket 4. The second sealing ring 11 is located between the connecting plate 2 and the rotating end cover 3.

[0026] The rotating baffle 1 is provided with a water divider 12, the water divider 12 and the connecting plate 2 are respectively located on both sides of the rotating baffle 1, and the water divider 12 is connected to the main engine probe shoe.

[0027] The rotating end cover 3 is provided with a water injection hole; the connecting plate 2 and the water distributor 12 are both provided with water injection holes. The coupling water enters the sealed cavity from the water supply joint 5, flows into the connecting plate 2 through the water injection hole on the rotating end cover 3, and the connecting plate 2 and the water distributor 12 are respectively provided with connected water injection ports, and finally the water is transported to the main engine probe shoe through the water distributor 12. The first sealing ring 10 and the second sealing ring 11 are used for water sealing.

[0028] Water is injected from the water injection hole, flows into the inner cavity of the adjustment end through the water flow holes on the outer ring bracket 6 and the holes on the adjustment cover 8, and then flows from the inner cavity into the water injection hole on the connecting plate 2 through the holes on the rotating end cover 3, and finally flows into the water distributor 12.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water sealing mechanism for a rotating spindle, characterized in that: It includes a rotating baffle, a connecting plate, a rotating end cover, an inner ring bracket, a water supply joint, an outer ring bracket, a fixing plate, an adjustment cover, and a plurality of packings. The rotating baffle and the connecting plate are both connected to the rotating shaft end. The rotating end cover is fixed to the connecting plate. The packings are sequentially sleeved on the rotating end cover. The inner ring bracket and the outer ring bracket are both fixed to the fixing plate. The inner ring bracket is located in the outer ring bracket. The fixing plate is connected to the fixed end plate of the main machine. The packing and the adjustment cover are both located between the inner ring bracket and the outer ring bracket. The adjustment cover is located between the packing and the fixing plate. The water supply joint is connected to the outer ring bracket. The fixing plate is provided with a top screw, the top screw is located on one side of the adjusting cover, and the adjusting cover pre-tightens the packing through the top screw; The water sealing mechanism is also provided with a plurality of first sealing rings and a plurality of second sealing rings. The first sealing rings are respectively located between the adjustment cover and the outer ring bracket and the inner ring bracket, and the second sealing ring is located between the connecting plate and the rotating end cover.

2. The water sealing mechanism for a rotating main shaft according to claim 1, characterized in that: The rotating baffle is provided with a water divider, the water divider and the connecting plate are respectively located on both sides of the rotating baffle, and the water divider is connected to the main engine probe shoe.

3. The water sealing mechanism for a rotating main shaft according to claim 2, characterized in that: The rotating end cover is provided with a water injection hole; the connecting plate and the water distributor are both provided with water injection holes.

4. The water sealing mechanism for a rotating spindle according to claim 1, characterized in that: The fixing plate is connected to the mainframe fixing end plate via a connecting guide column.

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