CN217234404U

CN217234404U - Novel main shaft sealing device

Info

Publication number: CN217234404U
Application number: CN202220583581.6U
Authority: CN
Inventors: 闫哲
Original assignee: Zhengzhou Tianli Mechanical Equipment Co ltd
Current assignee: Zhengzhou Tianli Mechanical Equipment Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-08-19
Anticipated expiration: 2032-03-17

Abstract

The utility model provides a novel main shaft sealing device, which comprises a supporting plate fixedly connected with the end part of a main shaft of a hoisting machine and arranged outside a casing of the hoisting machine, wherein the main shaft is vertical to the supporting plate and penetrates through the supporting plate, the end part of the main shaft is provided with a bearing, a sealing box is fixedly arranged on the outer side surface of the supporting plate, the main shaft penetrates through the sealing box and extends outwards relative to the sealing box, the sealing box is of a hollow structure, the upper end and the lower end of the sealing box are both opened, the lower end of the sealing box is provided with a lower cover plate, the lower end opening is sealed by the lower cover plate, the upper end of the sealing box is provided with an upper cover plate, the upper end opening is sealed by the upper cover plate, a sealing element for sealing the main shaft is arranged between the upper cover plate and the lower cover plate, a connecting piece is arranged between the upper cover plate and the lower cover plate, and the upper cover plate and the lower cover plate are fixed by the connecting piece, the advantages are not only good sealing effect, but also long service life and convenient replacement.

Description

Novel main shaft sealing device

Technical Field

The utility model relates to a main shaft seal's technical field, concretely relates to novel main shaft seal device.

Background

The main shaft of the elevator needs to be sealed, most of the oil seals adopted in the prior art are oil seals, and the oil seals have the defects of complex structure, poor sealing performance, short service life and inconvenient replacement due to complex structure.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a novel main shaft sealing device can not only realize better sealed effect, long service life, change convenience moreover.

In order to solve the technical problem, the utility model provides a novel main shaft sealing device, which comprises a supporting plate which is fixedly connected with the end part of a main shaft of a hoisting machine and is arranged outside a casing of the hoisting machine, the main shaft is vertical to the supporting plate, the main shaft penetrates through the supporting plate, the end part of the main shaft is provided with a bearing, the outer side surface of the supporting plate is fixedly provided with a sealing box, the main shaft penetrates through the sealing box, the main shaft extends outwards relative to the sealing box, the sealing box is of a hollow structure, the upper end and the lower end of the sealing box are both provided with openings, the lower end of the sealing box is provided with a lower cover plate, the lower end opening is sealed by a lower cover plate, the upper end of the sealing box is provided with an upper cover plate, the upper end opening is sealed by an upper cover plate, and a sealing element for sealing the main shaft is arranged between the upper cover plate and the lower cover plate, a connecting piece is arranged between the upper cover plate and the lower cover plate, and the upper cover plate and the lower cover plate are fixed through the connecting piece.

Furthermore, press plates are arranged on the end faces of the upper cover plate and the lower cover plate, the press plates are of concave structures, and the press plates of the upper cover plate and the press plates of the lower cover plate form circular structures.

Further, the sealing element is a sealing cloth, and the sealing cloth is in contact connection with the main shaft.

Further, the connecting piece is a bolt piece and is used for pressing the upper cover plate and the lower cover plate against the sealing piece.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. through set up the seal box in the hookup location inboard of main shaft and bearing for realize the sealed of main shaft, it is concrete, seal box fixedly connected with backup pad, fixed connection between the casing of backup pad and lifting machine, optional bolt fastening is favorable to changing, then all is provided with the opening at the upper end and the lower extreme of seal box, and has set up upper cover plate and lower apron, is used for compressing tightly inside sealing member, has reached better sealed effect.

2. The pressing plates are fixedly connected with the upper cover plate and the lower cover plate in an integrally formed connection mode, the pressing plates are of semicircular structures, the two pressing plates are combined to form a circular structure, and the position of the spindle is arranged in the space after combination.

3. The sealing piece is sealing cloth which is used for sealing the main shaft.

4. The pressing plates are fixedly connected with the upper cover plate and the lower cover plate in an integrally formed connection mode, the pressing plates are of semicircular structures, the circular structures are formed after the two pressing plates are combined, and the positions of the main shafts are arranged in the combined space.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the sealing box, the upper cover plate and the lower cover plate in FIG. 1;

in the figure: 1. a support plate; 2. a main shaft; 3. a sealing box; 4. a lower cover plate; 5. a connecting member; 6. an upper cover plate; 7. a bearing; 8. a seal member; 9. and (7) pressing a plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1-2 of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

As shown in fig. 1-2:

example 1

A novel main shaft sealing device comprises a supporting plate 1 fixedly connected to the end part of a main shaft 2 of a lifter and arranged on the outer side of a lifter shell, wherein the main shaft 2 is vertical to the supporting plate 1, the main shaft 2 penetrates through the supporting plate 1, a bearing 7 is arranged at the end part of the main shaft 2, a sealing box 3 is fixedly arranged on the outer side surface of the supporting plate 1, the main shaft 2 penetrates through the sealing box 3, the main shaft 2 extends outwards relative to the sealing box 3, the sealing box 3 is of a hollow structure, the upper end and the lower end of the sealing box 3 are both open, a lower cover plate 4 is arranged at the lower end of the sealing box 3, the lower end of the sealing box 3 is blocked by the lower cover plate 4, an upper cover plate 6 is arranged at the upper end of the sealing box 3, the upper end of the sealing box is blocked by the upper cover plate 6, a sealing element 8 for sealing the main shaft 2 is arranged between the upper cover plate 6 and the lower cover plate 4, and a connecting element 5 is arranged between the upper cover plate 6 and the lower cover plate 4, and fixes the upper cover plate 6 and the lower cover plate 4 by the connecting member 5.

In this embodiment, through set up seal box 3 in main shaft 2 and bearing 7's hookup location inboard, be used for realizing the sealed of main shaft 2, concretely, seal box 3 fixedly connected with backup pad 1, fixed connection between the casing of backup pad 1 and lifting machine, but the optional bolt fastening, be favorable to changing, then all be provided with the opening at seal box 3's upper end and lower extreme, and set up upper cover plate 6 and lower apron 4, be used for compressing tightly inside sealing member 8, reached better sealed effect.

Example 2

The end faces of the upper cover plate 6 and the lower cover plate 4 are provided with pressing plates which are of concave structures, and the pressing plates of the upper cover plate 6 and the lower cover plate 4 form circular structures.

Different from the above embodiments, in the present embodiment, the pressing plate is fixedly connected with the upper cover plate 6 and the lower cover plate 4, an integrally formed connection manner may be adopted, the pressing plate has a semicircular structure, the two pressing plates are combined to form a circular structure, and the position of the main shaft 2 is in the combined space.

Example 3

The sealing element 8 is a sealing cloth which is in contact connection with the main shaft 2.

In contrast to the above-described embodiments, in the present embodiment, the seal 8 is a seal cloth, and the seal cloth is used as a seal for the spindle 2.

Example 4

The connecting piece 5 is a bolt piece for pressing the upper cover plate 6 and the lower cover plate 4 against the sealing piece 8.

Different from the above embodiment, in this embodiment, in order to change conveniently, connect upper cover plate 6 and lower cover plate 4 with connecting piece 5, during the change, only need dismantle connecting piece 5, then take out upper cover plate 6 and lower cover plate 4, change sealed cloth can.

The utility model discloses a working method (or theory of operation):

when the technology works, when the sealing element 8 is installed, the upper cover plate 6 and the lower cover plate 4 are detached, specifically, the connecting piece 5, namely a bolt, is detached, then the upper cover plate 6 and the lower cover plate 4 are detached, then the sealing cloth is taken out, the new sealing cloth is replaced, then the upper cover plate 6 and the lower cover plate 4 are installed, the nut is screwed, the upper cover plate 6 and the lower cover plate 4 are pressed tightly on the sealing cloth, and the replacement of the sealing cloth can be completed.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel main shaft sealing device, includes the backup pad (1) that links firmly the main shaft (2) tip at the lifting machine and set up in the lifting machine casing outside, it is perpendicular between main shaft (2) and backup pad (1), and main shaft (2) run through backup pad (1), the tip of main shaft (2) is provided with bearing (7), its characterized in that: the fixed seal box (3) that is provided with on the lateral surface of backup pad (1), main shaft (2) run through seal box (3), and main shaft (2) relative seal box (3) outwards stretches out, seal box (3) are hollow structure, and the equal opening of upper end and lower extreme, the lower extreme of seal box (3) is provided with down apron (4), and through apron (4) shutoff lower extreme opening down, the upper end of seal box (3) is provided with upper cover plate (6), and through upper cover plate (6) shutoff upper end opening, be provided with sealing member (8) that are used for sealed main shaft (2) between upper cover plate (6) and apron (4) down, be provided with connecting piece (5) between upper cover plate (6) and apron (4) down to through connecting piece (5) fixed upper cover plate (6) and apron (4) down.

2. The novel main shaft sealing device according to claim 1, wherein: the end faces of the upper cover plate (6) and the lower cover plate (4) are provided with pressing plates which are of concave structures, and the pressing plates of the upper cover plate (6) and the lower cover plate (4) form circular structures.

3. The novel main shaft sealing device according to claim 2, wherein: the sealing piece (8) is sealing cloth which is in contact connection with the main shaft (2).

4. A novel spindle seal assembly as claimed in claim 3, wherein: the connecting piece (5) is a bolt piece and is used for pressing the upper cover plate (6) and the lower cover plate (4) to the sealing piece (8).