CN216618538U

CN216618538U - Rubber sealing device for wading machinery

Info

Publication number: CN216618538U
Application number: CN202220049467.5U
Authority: CN
Inventors: 刘晓辉; 郑洪杰; 姜云青
Original assignee: Shandong Kaixiwei Intelligent Equipment Co ltd
Current assignee: Shandong Kaixiwei Intelligent Equipment Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-05-27
Anticipated expiration: 2032-01-10

Abstract

The utility model provides a wade mechanical rubber sealing device, relate to sealing device technical field, including the cover body of connecting on equipment, the coaxial suit of cover body is on the main shaft, the coaxial annular mounting groove of having seted up of the hole of the cover body, be equipped with a plurality of packing by last to side by side down in the annular mounting groove, the inner circle of packing offsets with the perisporium friction of main shaft, the top of the cover body still is equipped with along vertical slip and compresses tightly the cover, it is located the annular mounting groove to compress tightly the cover, the lower tip that compresses tightly the cover offsets with the upper surface that is in the packing of top, compress tightly the upper surface of cover and still coaxially seted up radial spacing annular, the rigid coupling has the spacing ring of restraint in radial spacing annular on the main shaft. The utility model solves the problem that the main shaft in the traditional technology is easy to radially shake under load in the rotating process, and the sealing structure can not seal the main shaft; and the main shaft is easy to move along the axial direction, and the moving amount of the main shaft along the axial direction cannot be reduced.

Description

Rubber sealing device for wading machinery

Technical Field

The utility model relates to the technical field of sealing devices, in particular to a rubber sealing device for wading machinery.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to a rotation axis, keeping fit and relatively sliding under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.

In the prior art, when the rubber corrugated pipe is mechanically sealed, the rubber corrugated pipe is stressed and deformed greatly due to the fact that the rubber corrugated pipe is stressed and the pressure of transmission torque is borne, when the internal pressure of the rubber corrugated pipe is larger than 0.6MPa, the rubber corrugated pipe and a mechanical sealing device are excessively extruded, the rubber corrugated pipe is torn seriously, the mechanical sealing device fails early, and particularly when the device works underwater, the sealing is inconvenient.

The utility model discloses a patent with a publication number of CN208634594U in the prior art, which comprises a shaft sleeve, a movable ring, a static ring, a sealing seat and a rubber corrugated pipe, wherein the movable ring, the static ring, the sealing seat and the rubber corrugated pipe are arranged on the shaft sleeve, the transmission shaft, the shaft sleeve, the movable ring, the static ring, a spring seat and the rubber corrugated pipe are arranged on the shaft sleeve, one side of the shaft sleeve is provided with the spring seat, the other side of the spring seat is provided with the static ring seat, the movable ring and the static ring are arranged between the spring seat and the movable ring seat, the movable ring and the static ring are in axial end face contact, a spring cavity is formed in the spring seat, an elastic part is arranged in the spring cavity, one side of the spring part is provided with a push ring, and the push ring and the movable ring are in butt connection.

The prior device gradually exposes the defects of the technology along with the use, and mainly shows the following aspects:

first, the main shaft is at rotatory in-process, and the phenomenon that radial rocking easily appears in the load takes place for when rocking, seal structure can't realize sealing the main shaft, the phenomenon of revealing easily appears.

Secondly, when the main shaft is subjected to load change, the main shaft is easy to shift along the axial direction, and the shifting amount of the main shaft along the axial direction cannot be reduced.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model solves the problems that the main shaft in the traditional technical device is easy to radially shake under load in the rotating process, and the sealing structure can not seal the main shaft; and the main shaft is easy to move along the axial direction, and the moving amount of the main shaft along the axial direction cannot be reduced.

In order to solve the above problems, the present invention provides the following technical solutions:

the utility model provides a wading machinery rubber seal device, is including connecting the cover body on equipment, the coaxial suit of the cover body is on the main shaft, the coaxial annular mounting groove of having seted up of the hole of the cover body, be equipped with a plurality of packing by last under to in the annular mounting groove side by side, the inner circle of packing with the perisporium friction of main shaft offsets, the top of the cover body still is equipped with along vertical slip and compresses tightly the cover, it is located to compress tightly the cover in the annular mounting groove, compress tightly the lower tip of cover and be in the top the upper surface of packing offsets, compress tightly the upper surface of cover and still the coaxial radial spacing annular of having seted up, the rigid coupling has restraint in on the main shaft spacing ring in the radial spacing annular, the upper surface that compresses tightly the cover still is connected with the cladding the gland of radial spacing annular.

As an optimized scheme, a fixed disc is fixedly connected to the outer wall of the sleeve body close to the lower end portion, and the fixed disc is fixed to the surface of the equipment through screws.

As an optimized scheme, the lower end part of the sleeve body is further provided with an annular groove, a sealing ring is clamped in the annular groove, and the lower surface of the sealing ring is abutted to the surface of the equipment.

As an optimized scheme, a lower connecting disc is fixedly connected to the outer wall of the sleeve body close to the upper end portion, an upper connecting disc is fixedly connected to the outer wall of the pressing sleeve, a plurality of connecting holes are formed in the centers of the upper connecting disc and the lower connecting disc in an enclosing mode, a bolt is inserted between the two opposite connecting holes, and an adjusting nut is in threaded connection with the lower end portion of the bolt.

As an optimized scheme, a pre-tightening pressure spring is sleeved on the bolt, and two ends of the pre-tightening pressure spring are respectively abutted against the lower connecting disc and the adjusting nut.

As an optimized scheme, the bolt is further in threaded connection with a fixing nut, and the upper surface of the fixing nut abuts against the lower surface of the adjusting nut.

As an optimized scheme, a radial limiting packing is further arranged in the radial limiting ring groove, the lower surface of the radial limiting packing is abutted to the upper surface of the limiting ring, and the upper surface of the radial limiting packing is abutted to the lower surface of the gland.

Compared with the prior art, the utility model has the beneficial effects that:

the sleeve body can be conveniently fixed on the surface of equipment through the fixed disc, the sealing area of the main shaft can be enlarged through the external sealing arrangement, the plurality of packing sets are arranged in parallel, the plurality of packing sets are compressed through the compression sleeves, the packing sets are extruded and deformed, the outer ring of the packing set is tightly attached to the annular mounting groove for sealing, the inner ring of the packing set is tightly attached to the main shaft for sealing, the main shaft can be sealed, and the radial shaking amount of the main shaft can be reduced;

the radial limiting ring groove is formed in the pressing sleeve, the limiting ring on the main shaft is constrained in the radial limiting ring groove through the pressing cover, and the limiting ring is limited through the radial limiting packing, so that the axial movement of the main shaft is reduced;

through compressing tightly and being equipped with the pretension pressure spring between the cover body, realized along with the rotation of main shaft to the packing wearing and tearing back, realized compressing tightly the packing after wearing and tearing automatically, realized that self-compensating is sealed, improved the sealing performance of wading machinery.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1-equipment, 2-sleeve body and 3-packing; 4-fixing the disc; 5-a screw; 6-sealing ring; 7-pressing sleeve; 8-a limit ring; 9-radial limit packing; 10-pressing cover; 11-upper connecting disc; 12-lower connecting disc; 13-a bolt; 14-pre-tightening a pressure spring; 15-adjusting the nut; 16-a fixing nut; 17-main shaft.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, rubber sealing device for wading machinery, including the cover body 2 connected on the equipment 1, the cover body 2 is coaxially sleeved on a main shaft 17, an annular mounting groove has been coaxially seted up in the hole of the cover body 2, a plurality of packing 3 is arranged side by side from top to bottom in the annular mounting groove, the inner circle of packing 3 rubs and offsets with the perisporium of main shaft 17, the top of the cover body 2 is still equipped with a compressing sleeve 7 along vertical slip, compressing sleeve 7 is located the annular mounting groove, the lower tip of compressing sleeve 7 offsets with the upper surface of the packing 3 that is in the top, radial spacing ring 8 groove has still been coaxially seted up on the upper surface of compressing sleeve 7, the rigid coupling has spacing ring 8 of restraint in radial spacing ring 8 groove on the main shaft 17, the upper surface of compressing sleeve 7 still is connected with gland 10 of radial spacing ring 8 groove of cladding.

The outer wall of the sleeve body 2 close to the lower end part is fixedly connected with a fixed disc 4, and the fixed disc 4 is fixed on the surface of the equipment 1 through a screw 5.

The lower end of the sleeve body 2 is also provided with an annular groove, a sealing ring 6 is clamped in the annular groove, and the lower surface of the sealing ring 6 is abutted against the surface of the equipment 1.

The outer wall of the sleeve body 2 close to the upper end is fixedly connected with a lower connecting disc 12, the outer wall of the pressing sleeve 7 is fixedly connected with an upper connecting disc 11, a plurality of connecting holes are formed in the centers of the upper connecting disc 11 and the lower connecting disc 12 in an enclosing mode, a bolt 13 is inserted between the two opposite connecting holes, and the lower end of the bolt 13 is in threaded connection with an adjusting nut 15.

A pre-tightening compression spring 14 is sleeved on the bolt 13, and two ends of the pre-tightening compression spring 14 are respectively abutted against the lower connecting disc 12 and the adjusting nut 15.

The bolt 13 is further connected with a fixing nut 16 in a threaded manner, and the upper surface of the fixing nut 16 is abutted against the lower surface of the adjusting nut 15.

The radial limit packing 9 is further arranged in the groove of the radial limit ring 8, the lower surface of the radial limit packing 9 is abutted to the upper surface of the limit ring 8, and the upper surface of the radial limit packing 9 is abutted to the lower surface of the gland 10.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a wading machinery rubber seal device which characterized in that: comprises a sleeve body (2) connected with equipment (1), the sleeve body (2) is coaxially sleeved on a main shaft (17), an annular mounting groove is coaxially formed in the inner hole of the sleeve body (2), a plurality of packing roots (3) are arranged in the annular mounting groove in parallel from top to bottom, the inner ring of the packing (3) is in friction contact with the peripheral wall of the main shaft (17), a pressing sleeve (7) is arranged above the sleeve body (2) in a sliding manner along the vertical direction, the compressing sleeve (7) is positioned in the annular mounting groove, the lower end part of the compressing sleeve (7) is abutted against the upper surface of the packing (3) positioned at the top, the upper surface of the pressing sleeve (7) is also coaxially provided with a radial spacing ring (8) groove, a limit ring (8) constrained in the groove of the radial limit ring (8) is fixedly connected on the main shaft (17), the upper surface of the pressing sleeve (7) is also connected with a gland (10) which coats the groove of the radial limiting ring (8).

2. The rubber sealing device for the wading machine according to claim 1, wherein: the fixed disk (4) is fixedly connected to the outer wall of the sleeve body (2) close to the lower end part, and the fixed disk (4) is fixed on the surface of the equipment (1) through screws (5).

3. The rubber sealing device for the wading machine according to claim 2, wherein: the lower end of the sleeve body (2) is further provided with an annular groove, a sealing ring (6) is clamped in the annular groove, and the lower surface of the sealing ring (6) is abutted to the surface of the equipment (1).

4. The rubber sealing device for the wading machine according to claim 1, wherein: the cover body (2) is close to the outer wall of upper end portion and goes up the rigid coupling and have lower connection pad (12), the rigid coupling has upper connection pad (11) on compressing tightly the outer wall of cover (7), upper connection pad (11) with lower connection pad (12) enclose along the center and are equipped with a plurality of connecting hole, two relatively the cartridge has bolt (13) between the connecting hole, the lower tip threaded connection of bolt (13) has adjusting nut (15).

5. A wading machine rubber sealing device according to claim 4, wherein: the bolt (13) is sleeved with a pre-tightening pressure spring (14), and two ends of the pre-tightening pressure spring (14) are respectively abutted against the lower connecting disc (12) and the adjusting nut (15).

6. A rubber sealing device for wading machinery according to claim 5, wherein: and the bolt (13) is also in threaded connection with a fixed nut (16), and the upper surface of the fixed nut (16) is abutted to the lower surface of the adjusting nut (15).

7. The rubber sealing device for the wading machine according to claim 1, wherein: the radial limiting packing (9) is further arranged in the groove of the radial limiting ring (8), the lower surface of the radial limiting packing (9) is abutted to the upper surface of the limiting ring (8), and the upper surface of the radial limiting packing (9) is abutted to the lower surface of the gland (10).