CN210531605U

CN210531605U - Kneading machine shaft end sealing device

Info

Publication number: CN210531605U
Application number: CN201921352979.3U
Authority: CN
Inventors: 张伟东; 刘文珏; 张智博
Original assignee: Shenyang Dongsong Pharmaceutical Co ltd; Jilin Shenbolaya Biotechnology Co ltd
Current assignee: Shenyang Dongsong Pharmaceutical Co ltd; Jilin Shenbolaya Biotechnology Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-15
Anticipated expiration: 2029-08-20

Abstract

The utility model provides a kneading machine axle head sealing device, include: kneader casing, pivot, the pivot is sealed through sealing device with the combination department of kneader casing, sealing device includes the seal receptacle, sealed pad, pressure disk and presses the pipe, and the seal receptacle is fixed on kneader casing, is provided with sealed chamber between axle sleeve and the seal receptacle, and sealed intracavity is provided with sealed the pad, the one end of pressure disk is provided with presses the pipe, be provided with the annular groove on the seal receptacle inner wall, be provided with the sealed pipe in the annular groove, the pressure disk other end forms with the pivot and presses the chamber, it is provided with the pressure pipe to press the intracavity, press the fixed cover of pipe to establish in the pivot, press the outside of tubes surface be provided with the pivot syntropy recess, be provided with the pressure board in the recess, the utility model discloses a sealed pad plays first sealed effect to the spool, and the sealed pipe plays the second sealed effect to the.

Description

Kneading machine shaft end sealing device

Technical Field

The utility model relates to a kneading machine equipment technical field especially relates to a kneading machine axle head sealing device.

Background

The kneader is an important production device of liquid silicone rubber, and the kneader mainly stirs and mixes the powder raw materials through a stirring part, and then the stirred raw materials are conveyed to a squeezing kneading part through a transmission part to be molded and discharged, the shaft end of the kneader adopts mechanical sealing, a filler is arranged in a sealing cavity, the filler is squeezed through a bolt fastening pressure plate to adjust the sealing performance, the filler is easy to leak after being worn, the operation environment is polluted, the bolt is required to be adjusted manually and periodically, the filler is replaced, the sealing effect is poor, the service life of the filler is short, and the maintenance is frequent.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a kneading machine shaft end sealing device, which comprises a kneading machine shell, a rotating shaft, a shaft sleeve and a sealing device, wherein the shaft sleeve is arranged between the kneading machine shell and the rotating shaft and is in interference fit with the rotating shaft, the joint of the rotating shaft and the kneading machine shell is sealed by the sealing device, the sealing device comprises a sealing seat, a sealing gasket, a pressure plate and a pressing pipe, the sealing seat is fixed on the kneading machine shell, a sealing cavity is arranged between the shaft sleeve and the sealing seat, the sealing gasket is arranged in the sealing cavity, one end of the pressure plate is provided with the pressing pipe, the end part of the pressing pipe enters the sealing cavity and is attached to the sealing gasket, the inner wall of the sealing seat is provided with an annular groove, the annular groove is arranged around the pressure plate, the sealing pipe is, the pressing pipe is fixedly sleeved on the rotating shaft, a groove which is in the same direction as the rotating shaft is formed in the outer surface of the pressing pipe, a pressing plate is arranged in the groove, a positioning rod is arranged between the pressing pipe and the pressure plate, and the positioning rod is fixedly installed on the surface of the pressure plate.

Preferably, the sealing tube is connected with a vent pipe in a sealing manner, and the vent pipe penetrates through the sealing seat to be connected with an external air pump.

Preferably, the pressing plate is connected with the bottom of the groove through springs, and the springs are provided with multiple groups.

Preferably, an electric screw is arranged on the rotating shaft, and the pressing pipe is fixedly connected with the rotating shaft through the electric screw.

Preferably, the sealing tube is made of rubber.

The utility model has the advantages that:

1. the utility model discloses a sealed the sealed first sealed effect of countershaft play, the sealed pipe plays the sealed effect of second to the countershaft, and double seal is sealed effectual.

2. The utility model discloses a press the pipe, press the fixed cover of pipe to establish in the pivot, press the outside of tubes surface be provided with the recess of pivot syntropy, be provided with in the recess and press the clamp plate, press the clamp plate to pass through the spring and be connected bottom the recess, press the pipe and rotate along with the pivot together, press the clamp plate to produce the effort to the pressure disk under the effect of centrifugal force, make the pressure disk at the position equilibrium state all the time, make sealing device sealed effect better.

Drawings

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

FIG. 2 is a front view of the pressure tube;

fig. 3 is a sectional view of the inside of the groove.

In the shown drawing, 1 kneading machine shell, 2 rotating shafts, 3 shaft sleeves, 4 sealing seats, 5 sealing gaskets, 6 pressing plates, 6 pressing pipes, 7 pressing pipes, 8 springs, 9 electric screws, 10 pressing pipes, 11 sealing pipes, 12 grooves, 13 pressing plates, 14 positioning rods, 15 vent pipes and 16 air pumps are arranged.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, the embodiment provides a kneader shaft end sealing device, which includes a kneader housing 1, a rotating shaft 2, a shaft sleeve 3 and a sealing device, wherein the shaft sleeve 3 is disposed between the kneader housing 1 and the rotating shaft 2 and is in interference fit with the rotating shaft 2, a joint of the rotating shaft 2 and the kneader housing 1 is sealed by the sealing device, the sealing device includes a sealing seat 4, a sealing gasket 5, a pressure plate 6 and a pressing tube 7, the sealing seat 4 is fixed on the kneader housing 1, a sealing cavity is disposed between the shaft sleeve 3 and the sealing seat 4, the sealing gasket 5 is disposed in the sealing cavity, one end of the pressure plate 6 is provided with a pressing tube 10, an end of the pressing tube 10 enters the sealing cavity to press the sealing gasket 5, the sealing gasket 5 performs a first sealing function on the rotating shaft 2, an annular groove is disposed on an inner wall of the sealing seat 4, the annular, the sealing tube 11 is connected with the vent tube 15 in a sealing way, the vent tube 15 passes through the sealing seat 4 and is connected with an external air pump 16, the air pump 16 fills gas into the sealing tube 11 through the vent tube 15, the sealing tube 11 is made of rubber, the gas makes the sealing tube 11 expand and tightly attach to the pressure plate 6, a second sealing effect is realized on the rotating shaft 2, the other end of the pressure plate 6 and the rotating shaft 2 form a pressing cavity, a pressing tube 7 is arranged in the pressing cavity, the pressing tube 7 is fixedly sleeved on the rotating shaft 2, an electric screw 9 is arranged on the rotating shaft 2, the pressing tube 7 is fixedly connected with the rotating shaft 2 through the electric screw 9, a groove 12 which is in the same direction as the rotating shaft 2 is arranged on the outer surface of the pressing tube 7, a pressing plate 13 is arranged in the groove 12, the pressing plate 13 is connected with the bottom of the groove 12 through a spring 8, the spring 8 is provided with a, locating lever 14 fixed mounting is on pressure disk 6 surface, press pipe 7 to stop at specific position through locating lever 14, electronic screw 9 will press pipe 7 to fix on pivot 2, press pipe 7 to rotate along with pivot 2, press board 13 to produce the effort to pressure disk 6 under the effect of centrifugal force, make pressure disk 6 keep balance state all the time at the position, make sealing device sealed effect better.

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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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.

Claims

1. A kneading machine shaft end sealing device comprises a kneading machine shell, a rotating shaft, a shaft sleeve and a sealing device, wherein the shaft sleeve is arranged between the kneading machine shell and the rotating shaft and is in interference fit with the rotating shaft, and the joint of the rotating shaft and the kneading machine shell is sealed by the sealing device, and the sealing device is characterized in that the sealing device comprises a sealing seat, a sealing gasket, a pressure plate and a pressing pipe, the sealing seat is fixed on the kneading machine shell, a sealing cavity is arranged between the shaft sleeve and the sealing seat, the sealing gasket is arranged in the sealing cavity, one end of the pressure plate is provided with the pressing pipe, the end part of the pressing pipe enters the sealing cavity to be attached to the sealing gasket, the inner wall of the sealing seat is provided with an annular groove, the annular groove is arranged around the pressure plate, the sealing pipe is arranged in the annular groove, the other end, the outer surface of the pressing pipe is provided with a groove in the same direction as the rotating shaft, a pressing plate is arranged in the groove, a positioning rod is arranged between the pressing pipe and the pressure plate, and the positioning rod is fixedly installed on the surface of the pressure plate.

2. The kneader shaft end sealing device of claim 1, wherein the sealing tube is connected with a ventilation tube in a sealing manner, and the ventilation tube is connected with an external air pump through the sealing seat.

3. The kneader shaft end sealing device as defined in claim 2, wherein the pressing plate is connected to the groove bottom by springs, and the springs are provided in plural sets.

4. The kneader shaft end sealing device according to claim 1, characterized in that the rotating shaft is provided with an electric screw, and the pressing pipe is fixedly connected with the rotating shaft through the electric screw.

5. The kneader shaft end sealing apparatus as defined in claim 1, wherein the sealing tube is made of rubber.