Independent sealing box structure of screw extruder

Abstract

The utility model relates to an independent sealing box structure of a screw extruder, which comprises a transmission box, and the interior of the transmission box is divided into a sealing cavity and a transmission cavity through a partition plate; and the screw shaft penetrates through the transmission box, and the screw shaft is in sealed connection with the inner wall of the sealing cavity and is rotationally connected with the inner wall of the transmission cavity. The inner portion of the transmission case is divided into the sealing cavity and the transmission cavity through the partition plate, the transmission structure and the lubricating oil are arranged in the transmission cavity, the sealing cavity is arranged between the transmission cavity and ceramic pug, and the inner walls of the two sides of the sealing cavity are connected with the screw shaft in a sealed mode through the sealing mechanism. The transmission case cannot make contact with a bearing or ceramic pug immediately, and the probability that the ceramic pug is polluted or transmission case parts are suddenly abraded is reduced.

Description

Technical Field

[0001] This application relates to the field of screw extruder technology, and in particular to an independent sealed box structure for a screw extruder. Background Technology

[0002] Screw extruders are one of the commonly used pieces of equipment in the ceramics industry. They mainly consist of a transmission box and a screw shaft. One end of the screw shaft is used to agitate and transport the clay, while the other end extends into the transmission box and connects to the gears. It is also rotatably connected to the transmission box via bearings. The connection between the gears and the screw shaft is filled with lubricating oil.

[0003] Currently, such as Figure 2 The transmission housing shown has a sealing structure and ceramic clay in front of the front bearing, and lubricating oil behind it. If the seal loosens, lubricating oil will enter the clay, contaminating it. Simultaneously, the clay will enter the seal and bearing, causing rapid wear. This rapid wear, in turn, leads to a large amount of clay entering the seal and bearing, creating a vicious cycle that ultimately causes the screw extruder to rapidly fail. Utility Model Content

[0004] Therefore, it is necessary to provide an independent sealing box structure for screw extruders to overcome the defects of existing transmission box seals, which can lead to contamination of ceramic clay and rapid wear of transmission box parts once the seal becomes loose.

[0005] An independent sealed housing structure for a screw extruder includes:

[0006] The transmission box is internally divided into a sealed chamber and a transmission chamber by a partition; and

[0007] A screw shaft is installed through the transmission box, and the screw shaft is sealed to the inner wall of the sealing cavity and rotatably connected to the inner wall of the transmission cavity.

[0008] As a preferred embodiment of the independent sealed box structure of the screw extruder in this utility model, it also includes a transmission gear, which is disposed in the transmission cavity and meshes with the screw shaft.

[0009] As a preferred embodiment of the independent sealed box structure of the screw extruder in this utility model, the transmission cavity is filled with lubricating oil.

[0010] As a preferred embodiment of the independent sealed box structure of the screw extruder in this utility model, the top of the transmission box is provided with a detachable cover plate.

[0011] As a preferred embodiment of the independent sealed box structure of the screw extruder in this utility model, an observation window is provided at the corresponding position of the transmission box and the sealing cavity.

[0012] As a preferred embodiment of the independent sealing box structure of the screw extruder in this utility model, a sealing mechanism is provided between the screw shaft and the inner wall of the sealing cavity.

[0013] As a preferred embodiment of the independent sealed box structure of the screw extruder in this utility model, a bearing is provided between the screw shaft and the interior of the transmission cavity.

[0014] The beneficial effects of this utility model are:

[0015] This invention uses a partition to divide the inside of the transmission box into a sealed cavity and a transmission cavity. The transmission structure and lubricating oil are located in the transmission cavity, while the sealed cavity is located between the transmission cavity and the ceramic clay. The inner walls on both sides of the sealed cavity are sealed to the screw shaft through a sealing mechanism. When the seal is loose, the ceramic clay or lubricating oil enters the sealed cavity but will not immediately come into contact with the bearing or ceramic clay, thus reducing the probability of the ceramic clay being contaminated or the transmission box parts being worn rapidly.

[0016] This invention allows observation of the sealing cavity through an observation window. When the seal becomes loose, it can be detected in time through the observation window, and the tightness of the seal can be adjusted at any time through a detachable cover plate. It can also be used to maintain or replace aging sealing materials. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional schematic diagram of the independent sealed box structure in the embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a transmission box in the prior art;

[0020] Explanation of reference numerals in the attached figures:

[0021] 1000, partition;

[0022] 2000, sealed cavity;

[0023] 3000, Transmission cavity;

[0024] 4000, Screw shaft;

[0025] 5000, cover plate;

[0026] 6000, observation window;

[0027] 7000, sealing mechanism;

[0028] 8000, bearings. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Example

[0036] This embodiment provides an independent sealed box structure for a screw extruder, such as Figure 1 As shown, it includes a transmission box, which is internally divided into a sealed cavity 2000 and a transmission cavity 3000 by a partition 1000. One end of the screw shaft 4000 passes through the sealed cavity 2000, the partition 1000 and the transmission cavity 3000 in sequence. The sealed cavity 2000 separates the ceramic clay located at the other end of the screw shaft 4000 from the transmission cavity 3000.

[0037] The top of the transmission box is equipped with a removable cover plate 5000 to facilitate maintenance of the internal structure of the transmission box. An observation window 6000 is located at the position corresponding to the sealing cavity 2000, allowing operators to promptly detect ceramic clay or lubricating oil entering the sealing cavity 2000. The removable cover plate 5000 allows for adjustment of the tightness of the sealing mechanism 7000 within the sealing wall 2000, and also enables maintenance or replacement of aging sealing mechanisms 7000.

[0038] The partition plate 1000 is provided with a first through hole for the screw shaft 4000 to pass through. The transmission box is provided with a second through hole and a third through hole at positions opposite to the first through hole on both sides. One end of the screw shaft 4000 passes through the second through hole, the first through hole and the third through hole in sequence.

[0039] The transmission cavity 3000 is equipped with a transmission gear, which is disposed within the transmission cavity 3000 and meshes with the screw shaft 4000. Its interior is also filled with lubricating oil for lubrication.

[0040] In this embodiment, both the first and second through holes are provided with detachable sealing mechanisms 7000 near the sealing cavity 2000. The sealing mechanisms 7000 are arranged around the screw shaft 4000, and while the sealing mechanisms 7000 provide a sealing function, the screw shaft 4000 can rotate normally. The third and second through holes are provided with detachable bearings 8000 near the transmission cavity 3000. The bearings 8000 are sleeved with the screw shaft 4000 and mainly serve to support and transmit power.

[0041] When the sealing mechanism 7000 is loose, the ceramic clay or lubricating oil enters the sealing cavity 2000 and will not immediately come into contact with the bearing 8000 or the ceramic clay, reducing the probability of the ceramic clay being contaminated or the transmission box parts being worn rapidly.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An independent sealed box structure for a screw extruder, characterized in that, include: The transmission box is internally divided into a sealed chamber and a transmission chamber by a partition; as well as A screw shaft is installed through the transmission box, and the screw shaft is sealed to the inner wall of the sealing cavity and rotatably connected to the inner wall of the transmission cavity.

2. The independent sealed box structure of the screw extruder according to claim 1, characterized in that, It also includes a transmission gear, which is disposed in the transmission cavity and meshes with the screw shaft.

3. The independent sealed box structure of the screw extruder according to claim 2, characterized in that, The transmission cavity is filled with lubricating oil.

4. The independent sealed box structure of the screw extruder according to claim 1, characterized in that, The top of the transmission box is equipped with a removable floor cover.

5. The independent sealed box structure of the screw extruder according to claim 4, characterized in that, An observation window is provided at the corresponding position of the transmission box and the sealed cavity.

6. The independent sealed box structure of the screw extruder according to claim 1, characterized in that, A sealing mechanism is provided between the screw shaft and the inner wall of the sealing cavity.

7. The independent sealed box structure of the screw extruder according to claim 6, characterized in that, A bearing is provided between the screw shaft and the interior of the transmission cavity.

Images