CN215100127U - Screw shaft air sealing structure of screw feeder - Google Patents

Abstract

The utility model discloses a screw feeder screw axis gas seal structure, which comprises a rotating shaft, the pivot is passed through the bearing and is rotated with first casing and link to each other, the internally mounted of first casing has sealing device, the inside of first rubber circle is closely laminated with the outer wall of pivot, the outer wall rigid coupling of first rubber circle has first lug. This screw feeder screw axis gas sealing structure, through the pivot, a bearing, cooperation between first casing and the sealing device, through the second rubber circle, the second lug, the rubber ball, the elasticity of first lug and annular rubber area, give the power of first rubber circle inboard all the time, make first rubber circle closely laminate all the time in the pivot, avoid leaking the material, make first rubber circle remain the leakproofness all the time and between the pivot, and is rational in infrastructure, current screw feeder screw axis gas sealing structure has been solved, and the steam generator is single in structure, long-term use can make the not enough problem of leakproofness.

Description

Screw shaft air sealing structure of screw feeder

Technical Field

The utility model relates to a screw feeder technical field specifically is a screw feeder screw axis airtight structure.

Background

The screw feeder is also called as a screw feeder, a screw conveyor, a scraper conveyor, a bucket conveyor and other conveying equipment, has the characteristics of high conveying efficiency, safe and reliable work, simple structure, complete functions, low noise, attractive appearance and the like, and is widely used in various industrial departments, such as building materials, electric power, chemical industry, metallurgy, coal, aluminum magnesium, machinery, light industry, grain and food industries.

However, the existing screw shaft air sealing structure of the screw feeder has a single structure, and the sealing performance is insufficient after long-term use, and meanwhile, the existing screw shaft air sealing structure of the screw feeder has the problems that the existing screw shaft air sealing structure is inconvenient to update after long-term use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw feeder screw axis air-tight structure to solve the current screw feeder screw axis air-tight structure who provides among the above-mentioned background art, single structure uses the problem that can make the leakproofness not enough for a long time.

In order to achieve the above object, the utility model provides a following technical scheme: a screw shaft air sealing structure of a screw feeder comprises a rotating shaft, wherein the rotating shaft is rotatably connected with a first shell through a bearing, and a sealing device is arranged in the first shell;

the sealing device comprises a first rubber ring, a first bump, a rubber ball, a second bump, a second rubber ring and an annular rubber belt;

the inside of first rubber circle closely laminates with the outer wall of pivot, the outer wall rigid coupling of first rubber circle has first lug, the outside rigid coupling of first lug has the rubber ball, the outside rigid coupling of rubber ball has the second lug, the outside rigid coupling of second lug is at the inner wall of second rubber circle, the rigid coupling has annular rubber area between second rubber circle and the first rubber circle, the outer wall veneer of second rubber circle is at the inner wall of first casing. Make first rubber circle closely laminate all the time in the pivot, avoid leaking the material, make first rubber circle and keep the leakproofness between the pivot all the time, rational in infrastructure.

Preferably, the outer wall of the rotating shaft is fixedly connected with a rotating tooth, and the rotating tooth is arranged inside the second shell. The rotating shaft drives the rotating teeth to rotate in the second shell, and materials are conveyed spirally to one side.

Preferably, a material port is fixedly connected to the top end of one side of the second shell, and the second shell is communicated with the material port. And the external material enters the second shell through the material port.

Preferably, one end of the rotating shaft is provided with a power device;

the power device comprises a semicircular block, a screw, a transverse plate and a motor;

it is a plurality of the semicircle piece all is through screw and first casing threaded connection, the bottom rigid coupling of semicircle piece has the diaphragm, the equal rigid coupling in the tip outside of motor of one end of diaphragm, the output shaft outer wall of motor and the one end inner wall splined connection of pivot. And power is provided for the operation of the rotating shaft.

Preferably, a connecting device is installed on the outer side of the first shell;

the connecting device comprises a first square plate, a rubber pad, a second square plate, a mounting hole, a bolt and a nut;

the inner wall rigid coupling of first square board has the second casing, the one end edge laminating of first square board has the rubber pad, the one end laminating of rubber pad has the second square board, the inner wall rigid coupling of second square board has first casing, a plurality of mounting holes have all been seted up to first square board and the outside inner wall of second square board corresponding, the equal clearance fit of internal surface of mounting hole has the bolt, the equal threaded connection of one end outer wall of bolt has the nut. The first shell and the second shell can be detached, and the sealing element in the first shell can be conveniently replaced.

Compared with the prior art, the beneficial effects of the utility model are that: compared with the prior art, the screw shaft air-tight sealing structure of the screw feeder has the advantages that:

through the matching among the rotating shaft, the bearing, the first shell and the sealing device, the force towards the inner side is always given to the first rubber ring through the elasticity of the second rubber ring, the second bump, the rubber ball, the first bump and the annular rubber belt, so that the first rubber ring is always tightly attached to the rotating shaft, the leakage is avoided, the sealing performance between the first rubber ring and the rotating shaft is always kept, the structure is reasonable, and the problem that the sealing performance is insufficient due to the fact that the existing spiral shaft of the spiral feeder is of a hermetic sealing structure and is single in structure and can be used for a long time is solved;

through the cooperation between sealing device, first casing, second casing and the connecting device, take off the nut that corresponds on eight bolts, can make first casing and second casing separation dismantle, be convenient for renew the inside sealing element of first casing, solved current screw feeder screw axis gas seal structure, long-time the use, be not convenient for the problem of renewal.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural diagram of the first bump, the rubber ball and the second bump in FIG. 1;

fig. 4 is a schematic structural view of the semicircular block, the screw and the first housing in fig. 1.

In the figure: 1. the sealing device comprises a rotating shaft, 2, a bearing, 3, a first shell, 4, a sealing device, 401, a first rubber ring, 402, a first lug, 403, a rubber ball, 404, a second lug, 405, a second rubber ring, 406, an annular rubber belt, 5, a power device, 501, a semicircular block, 502, a screw, 503, a transverse plate, 504, a motor, 6, a connecting device, 601, a first square plate, 602, a rubber pad, 603, a second square plate, 604, a mounting hole, 605, a bolt, 606, a nut, 7, a rotating tooth, 8, a second shell, 9 and a material port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a screw shaft air-tight sealing structure of a screw feeder comprises a rotating shaft 1, the rotating shaft 1 is rotatably connected with a first shell 3 through a bearing 2, a sealing device 4 is arranged inside the first shell 3, the sealing device 4 comprises a first rubber ring 401, a first lug 402, a rubber ball 403, a second lug 404, a second rubber ring 405 and an annular rubber belt 406, the inside of the first rubber ring 401 is tightly attached to the outer wall of the rotating shaft 1, the outer wall of the first rubber ring 401 is fixedly connected with the first lug 402, the outer side of the first lug 402 is fixedly connected with the rubber ball 403, the outer side of the rubber ball 403 is fixedly connected with the second lug 404, the outer side of the second lug 404 is fixedly connected to the inner wall of the second rubber ring 405, the first lug 402 and the second lug 404 are both made of a fluorine rubber material, the annular rubber belt 406 is fixedly connected between the second rubber ring 405 and the first rubber ring 401, the outer wall of the second rubber ring 405 is glued to the inner wall of the first shell 3, through the elasticity of second rubber circle 405, second lug 404, rubber ball 403, first lug 402 and annular rubber belt 406, give the inboard power of first rubber circle 401 all the time, make first rubber circle 401 closely laminate all the time in pivot 1, avoid leaking the material, cause the bearing 2 damage.

The outer wall rigid coupling of pivot 1 has changeing tooth 7, changes tooth 7 and sets up in the inside of second casing 8, and pivot 1 drives changeing tooth 7 at the internal rotation of second casing 8, to one side spiral fortune material.

A material port 9 is fixedly connected to the top end of one side of the second shell 8, the second shell 8 is communicated with the material port 9, and external materials enter the second shell 8 through the material port 9.

Power device 5 is installed to the one end of pivot 1, power device 5 includes semicircle piece 501, screw 502, diaphragm 503 and motor 504, two semicircle pieces 501 all are through screw 502 and first casing 3 threaded connection, two semicircle pieces 501 are fixed on first casing 3 through screw 502 respectively, the bottom rigid coupling of semicircle piece 501 has diaphragm 503, the equal rigid coupling in the tip outside of motor 504 of one end of diaphragm 503, two semicircle pieces 501 support fixedly through the diaphragm 503 that corresponds motor 504, the output shaft outer wall of motor 504 and the one end inner wall splined connection of pivot 1, the output shaft of motor 504 drives pivot 1 and passes through bearing 3 at the internal rotation of first casing 3.

The connecting device 6 is installed on the outer side of the first shell 3, the connecting device 6 comprises a first square plate 601, a rubber pad 602, a second square plate 603, installation holes 604, bolts 605 and nuts 606, the inner wall of the first square plate 601 is fixedly connected with the second shell 8, the edge of one end of the first square plate 601 is attached with the rubber pad 602, one end of the rubber pad 602 is attached with the second square plate 603, the rubber pad 602 seals the joint of the first square plate 601 and the second square plate 603, the inner wall of the second square plate 603 is fixedly connected with the first shell 3, the inner walls of the outer sides of the first square plate 601 and the second square plate 603 are correspondingly provided with eight installation holes 604, the inner surfaces of the installation holes 604 are in clearance fit with the bolts 605, the outer wall of one end of the bolt 605 is in threaded connection with the nuts 606, the eight bolts 605 are sequentially inserted into the corresponding installation holes 604 on the first square plate 601 and the second square plate 602 and are provided with the corresponding nuts 606, so that the first shell 3 is installed on the second shell 8, conversely, the corresponding nuts 606 on the eight bolts 605 are removed, so that the first casing 3 and the second casing 8 can be separated and detached, and the sealing element inside the first casing 3 can be replaced conveniently.

When the screw shaft air-tight sealing structure of the screw feeder is used, firstly, a motor 504 is driven to move towards one side of a first shell 3 by manual driving, an output shaft of the motor 504 is inserted into a rotating shaft 1 and is connected with the rotating shaft, two semicircular blocks 501 are respectively fixed on the first shell 3 through screws 502, the two semicircular blocks 501 support and fix the motor 504 on the first shell 3 through corresponding transverse plates 503, a first rubber ring 401 is sleeved on the outer wall of the rotating shaft 1, a second rubber ring 405 is fixed in the first shell 3 through external colloid and drives the first shell 3 to move towards one side of a second shell 8, eight bolts 605 are sequentially inserted into corresponding mounting holes 604 on a first square plate 601 and a second square plate 602, corresponding nuts 606 are mounted, the first shell 3 is mounted on the second shell 8, the rubber gasket 602 seals the joint of the first square plate 601 and the second square plate 603, and external materials enter the second shell 8 through a material port 9, the external power supply of switch-on motor 504, motor 504 works, the output shaft of motor 504 drives pivot 1 and passes through bearing 3 at first casing 3 internal rotation, pivot 1 drives commentaries on classics tooth 7 and rotates in second casing 8, to one side spiral fortune material, and through second rubber circle 405, second lug 404, rubber ball 403, the elasticity of first lug 402 and annular rubber area 406, give the inboard power of first rubber circle 401 all the time, make first rubber circle 401 closely laminate on pivot 1 all the time, avoid leaking the material, cause the damage of bearing 2, take off the nut 606 that corresponds on eight bolts 605, can make first casing 3 and second casing 8 separation dismantle, be convenient for update the inside sealing element of first casing 3.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a screw feeder screw axis gas-tight seal structure, includes pivot (1), its characterized in that: the rotating shaft (1) is rotatably connected with a first shell (3) through a bearing (2), and a sealing device (4) is installed inside the first shell (3);

the sealing device (4) comprises a first rubber ring (401), a first bump (402), a rubber ball (403), a second bump (404), a second rubber ring (405) and an annular rubber belt (406);

the inside of first rubber circle (401) closely laminates with the outer wall of pivot (1), the outer wall rigid coupling of first rubber circle (401) has first lug (402), the outside rigid coupling of first lug (402) has rubber ball (403), the outside rigid coupling of rubber ball (403) has second lug (404), the outside rigid coupling of second lug (404) is at the inner wall of second rubber circle (405), the rigid coupling has annular rubber area (406) between second rubber circle (405) and first rubber circle (401), the outer wall veneer of second rubber circle (405) is at the inner wall of first casing (3).

2. The screw shaft airtight sealing structure of the screw feeder as claimed in claim 1, wherein: the outer wall rigid coupling of pivot (1) has commentaries on classics tooth (7), change tooth (7) and set up the inside at second casing (8).

3. The screw shaft airtight sealing structure of the screw feeder according to claim 2, wherein: a material opening (9) is fixedly connected to the top end of one side of the second shell (8), and the second shell (8) is communicated with the material opening (9).

4. The screw shaft airtight sealing structure of the screw feeder as claimed in claim 1, wherein: one end of the rotating shaft (1) is provided with a power device (5);

the power device (5) comprises a semicircular block (501), a screw (502), a transverse plate (503) and a motor (504);

it is a plurality of semicircle piece (501) all through screw (502) and first casing (3) threaded connection, the bottom rigid coupling of semicircle piece (501) has diaphragm (503), the equal rigid coupling in the tip outside of motor (504) of one end of diaphragm (503), the output shaft outer wall of motor (504) and the one end inner wall splined connection of pivot (1).

5. The screw shaft airtight sealing structure of the screw feeder as claimed in claim 1, wherein: a connecting device (6) is arranged on the outer side of the first shell (3);

the connecting device (6) comprises a first square plate (601), a rubber pad (602), a second square plate (603), a mounting hole (604), a bolt (605) and a nut (606);

the inner wall rigid coupling of first square board (601) has second casing (8), the one end edge laminating of first square board (601) has rubber pad (602), the one end laminating of rubber pad (602) has second square board (603), the inner wall rigid coupling of second square board (603) has first casing (3), a plurality of mounting holes (604) have all been seted up to the outside inner wall of first square board (601) and second square board (603) corresponding, the equal clearance fit of internal surface of mounting hole (604) has bolt (605), the equal threaded connection of one end outer wall of bolt (605) has nut (606).

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