CN210265849U

CN210265849U - Full-automatic water filter transmission shaft sealing structure

Info

Publication number: CN210265849U
Application number: CN201921320722.XU
Authority: CN
Inventors: 石烨; 胡昌; 张厚东; 李鹏
Original assignee: Xinyang Datang Environmental Protection Equipment Technology Co Ltd
Current assignee: Xinyang Datang Environmental Protection Equipment Technology Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-07
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses full-automatic water purifier transmission shaft seal structure, including a jar body footstock, there is first sleeve along vertical bolted connection on the jar body footstock, the inside upper end of first sleeve is provided with the packing, the lower extreme is provided with the bearing, the coaxial transmission shaft that is provided with in the bearing, first sleeve lower extreme bolted connection has lower fixed disk, be provided with the plane sealing washer down between fixed disk and the first sleeve, second annular groove has been seted up to lower fixed disk inboard, the coaxial radial seal circle that is provided with in the second annular groove, first sheathed tube upper end is provided with the second sleeve pipe, the lower extreme of second sheathed tube compresses tightly the packing, the second sleeve pipe passes through bolt and first sleeve pipe fixed connection.

Description

Full-automatic water filter transmission shaft sealing structure

Technical Field

The utility model relates to a sealing equipment field especially relates to a water purifier transmission shaft seal structure.

Background

The full-automatic water filter is a precise device which directly intercepts impurities in water by using a filter screen, removes suspended matters and particles, reduces turbidity, purifies water quality, reduces the generation of system dirt, bacteria, algae, rust and the like, and purifies the water quality and protects other devices of the system to normally work; the full-automatic water filter is mainly used for purification, is usually applied to circulating water and heat supply network pipelines in the power industry, has high sealing difficulty and high requirement when a transmission shaft of the water filter with high use environment temperature, high pressure and poor water quality is used as a rotating part of a through shell, often needs to extend the transmission shaft outside a water filter tank body to the inside of the water filter tank body in use, needs to seal the water filter tank when the sealing performance of the water filter tank does not meet the requirement, and is particularly necessary to develop a full-automatic water filter transmission shaft sealing structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic water purifier transmission shaft seal structure when sealed not in time, makes the leakproofness reach the requirement through adjusting seal structure.

The technical scheme is as follows:

the full-automatic water filter transmission shaft sealing structure comprises a tank body top seat, a first hole vertically penetrating through the tank body top seat is formed in the middle of the tank body top seat, a first sleeve is coaxially arranged in the first hole and is in interference fit with the first hole, a first flanging is arranged at the upper end of the first sleeve and is fixedly connected with the tank body top seat through a bolt, an O-shaped sealing ring is arranged between the first flanging and a tank body,

the upper end of the first sleeve is coaxially provided with a first circular groove, a plurality of packing sets are coaxially arranged in the first circular groove, the upper end of the packing set is provided with a second sleeve which is coaxially arranged with the transmission shaft, the second sleeve is in clearance fit with the first sleeve, the lower end surface of the second sleeve presses the packing set, the upper end of the second sleeve is provided with a second flanging which is connected with the first flanging through a bolt, the second flanging is parallel to and separated from the first flanging, the lower part of the first sleeve is coaxially provided with a second circular groove, a bearing is coaxially arranged in the second circular groove, the bearing is in interference fit with the first sleeve, the upper end of the second circular groove is coaxially provided with a third circular groove, the diameter of the third circular groove is smaller than that of the outer ring of the bearing and larger than that of the inner ring of the bearing, the third circular groove is vertically communicated with the second circular groove, the transmission shaft is divided into two sections from bottom to top, the two sections are sequentially a first diameter and a second diameter from bottom to top, the first diameter is larger than the second diameter, the second diameter is in interference fit with the bearing, a positioning shaft shoulder between the first diameter and the second diameter presses a lower end face of the bearing inner ring, the second diameter is in clearance fit with the first sleeve, a plane sealing ring is coaxially arranged on the lower end face of the first sleeve, a lower fixing disc is coaxially arranged at the lower end of the plane sealing ring, the lower fixing disc is in clearance fit with the transmission shaft, a fourth circular groove is coaxially arranged on the upper end face of the lower fixing disc and the transmission shaft, the diameter of the fourth circular groove is larger than the outer diameter of the bearing, the outer side of the upper end face of the lower fixing disc presses the plane sealing ring and is connected with a bolt of the first sleeve, a second annular groove is horizontally arranged on, the inner diameter of the radial sealing ring is in interference fit with the transmission shaft.

Preferably, the bearing is a thrust roller bearing.

Preferably, the edges of all the structures are provided with chamfers.

Preferably, two third annular grooves are horizontally formed in the third annular groove.

Has the advantages that: this water purifier transmission shaft seal structure is by "O" shape sealing washer and the two-layer static seal of plane seal circle, radial seal circle and packing twice movable seal, make the transmission shaft can both have good leakproofness when static and developments, shoulder and thrust roller bearing's setting up makes the transmission shaft can bear partial axial power, it is stronger to make full-automatic water purifier transmission shaft seal structure adaptability, when the leakproofness can not reach the requirement, thereby compress tightly the second sleeve pipe through adjusting bolt and compress tightly the packing and make the packing fill up the space between transmission shaft and the first sleeve pipe along radial expansion, make to have better leakproofness between transmission shaft and the first sleeve pipe.

Drawings

Fig. 1 is a schematic structural view of a sealing structure of a transmission shaft of a full-automatic water filter of the present invention;

fig. 2 is a schematic structural diagram of the sealing structure a of the transmission shaft of the full-automatic water filter of the present invention.

Detailed Description

The invention will be further described with reference to the following specific embodiments: as shown in fig. 1 to 2: the full-automatic water filter transmission shaft sealing structure is arranged at the upper end of a water filter tank body and comprises a tank body top seat 2, the tank body top seat 2 is welded at the upper end of a tank body 1, a first hole 3 vertically penetrating through the tank body top seat 2 is formed in the middle of the tank body top seat 2, a first sleeve 4 is coaxially arranged in the first hole 3, the first sleeve 4 is in interference fit with the first hole 3, a first flanging 4-1 is arranged at the upper end of the first sleeve 4, the first flanging 4-1 is fixedly connected with the tank body top seat 2 through a bolt, a first annular groove 5 coaxially arranged with the first sleeve 4 is formed in the upper end face of the tank body top seat 2 at the lower end of the first flanging 4-1, an O-shaped sealing ring 6 is arranged inside the first annular groove 5, and the sealing performance between the first sleeve 4 and the tank body top seat 2 is better due to the arrangement of the O-shaped sealing ring 6,

the upper end of the first sleeve 4 is coaxially provided with a first circular groove 7, a plurality of packing sets 8 are coaxially arranged in the first circular groove 7, the upper end of each packing set 8 is provided with a second sleeve 18 which is coaxially arranged with the transmission shaft 12, the second sleeve 18 is in clearance fit with the first sleeve 4, the lower end face of the second sleeve 18 tightly presses the packing set 8, the vertically pressed packing set 8 radially expands along the transmission shaft 12 to enable the transmission shaft 12 to have better sealing performance along the axial direction, the upper end of the second sleeve 18 is provided with a second flanging 18-1, the second flanging 18-1 is connected with the first flanging 4-1 through bolts, and the second flanging 18-1 is parallel to and separated from the first flanging 4-1; when the sealing performance does not meet the requirement, the second sleeve is pressed through the adjusting bolt, so that the packing 8 is pressed, the packing 8 is expanded along the radial direction to fill the gap between the transmission shaft 12 and the first sleeve, and the transmission shaft 12 and the first sleeve 4 have better sealing performance;

a second circular groove 9 is coaxially formed in the lower end of the first sleeve 4, a thrust roller bearing 10 is coaxially arranged in the second circular groove 9, the thrust roller bearing 10 can bear axial force, the thrust roller bearing 10 is in interference fit with the first sleeve 4, a third circular groove 11 is coaxially formed in the upper end of the second circular groove 9, the diameter of the third circular groove 11 is smaller than that of the outer ring of the thrust roller bearing 10 and larger than that of the inner ring of the thrust roller bearing 10, the third circular groove 11 is communicated with the second circular groove 9 in an up-and-down mode, the inner ring of the thrust roller bearing 10 is free of pressure from the first sleeve 4 due to the arrangement of the third circular groove 11 and can rotate freely, and a transmission shaft 12 is coaxially arranged in the thrust roller bearing 10;

the transmission shaft 12 is divided into two sections from bottom to top, the two sections are sequentially provided with a first diameter 12-1 and a second diameter 12-2 from bottom to top, the first diameter 12-1 is larger than the second diameter 12-2, the second diameter 12-2 is in interference fit with the thrust roller bearing 10, a positioning shaft shoulder between the first diameter 12-1 and the second diameter 12-2 tightly presses the lower end face of an inner ring of the thrust roller bearing 10, the second diameter 12-2 is in clearance fit with the first sleeve 4, the lower end face of the first sleeve 4 is coaxially provided with a plane sealing ring 13, the lower end of the plane sealing ring 13 is coaxially provided with a lower fixed disc 14, the lower fixed disc 14 is in clearance fit with the transmission shaft 12, the upper end face of the lower fixed disc 14 is coaxially provided with a fourth circular groove 15, the diameter of the fourth circular groove 15 is larger than the outer diameter of the thrust roller bearing 10, the outer side of the upper end face of the lower fixed, the thrust roller bearing 10 is pressed to the up end of fixed disk 14 under avoiding in the setting of fourth circular recess 15, avoid thrust roller bearing 10 to be compressed tightly and be difficult to rotate, two second annular grooves 16 have been seted up to the inboard level of lower fixed disk 14, and two second annular grooves 16 are parallel to each other, second annular groove 16 and the coaxial setting of lower fixed disk 14, coaxial radial seal 17 that is provided with in the second annular groove 16, radial seal 17 internal diameter and 12 interference fit of transmission shaft, radial seal 17's setting makes transmission shaft 12 have good leakproofness along the axial, the chamfer has all been seted up to foretell all structure edges, the setting of chamfer is convenient for install, and stress concentration has been avoided.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. Full-automatic water purifier transmission shaft seal structure, its characterized in that: comprises a tank body top seat, a first hole vertically penetrating through the tank body top seat is arranged in the middle of the tank body top seat, a first sleeve is coaxially arranged in the first hole, the first sleeve is in interference fit with the first hole, a first flanging is arranged at the upper end of the first sleeve, the first flanging is fixedly connected with the tank body top seat through a bolt, an O-shaped sealing ring is arranged between the first flanging and the tank body,

2. A full automatic water filter drive shaft sealing structure as claimed in claim 1, wherein: the bearing is a thrust roller bearing.

3. A full automatic water filter drive shaft sealing structure as claimed in claim 1, wherein: the edges of all the structures are provided with chamfers.

4. A full automatic water filter drive shaft sealing structure as claimed in claim 1, wherein: two second annular grooves are horizontally arranged.