Combined sealing structure of rinsing bath end plate and shaft

Abstract

The utility model belongs to the field of plastic solid waste recovery and oil sludge washing treatment, and relates to a combined sealing structure of a washing tank end plate and a shaft. According to the utility model, double-effect internal and external sealing is adopted for the shaft sealing of the rinsing bath equipment, so that the timeliness of the sealing is improved, and the maintenance and replacement cost of the sealing is reduced; the O-shaped sealing ring and the packing are combined to seal the rotating main shaft and the end plate, the relative sealing structures of the two shafts are commonly used and low in cost, the combined structure is the packing sealing outside the groove, and the sealing is high in adaptability and finiteness under the working condition and convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] The utility model belongs to the field of plastic solid waste recovery and oil sludge water washing treatment, and relates to a combined sealing structure of a water washing tank end plate and a shaft. Background Art

[0002] With the development of industry, the application of plastic products has spread to all fields of industry, agriculture and daily life. Recycling plastic products is currently the best way to solve the problem of plastic waste. When recycling plastic products, it is often necessary to clean the sludge on the plastic.

[0003] Packing seals or skeleton oil seals are often used to seal the tank and the rotating shaft in the water washing process of plastics and oil sludge. Since the liquid in the tank often contains a lot of solid waste impurities, the skeleton seal often fails and the loss is large. Packing seals are prone to micro-leakage, and the solid impurities in the liquid in the tank also damage the packing to a certain extent, resulting in a decrease in the effectiveness of the packing seal and an increase in the frequency of maintenance and replacement. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings of the prior art and provides a combined sealing structure of a washing tank end plate and a shaft.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a combined sealing structure of a water washing tank end plate and a shaft, comprising a tank body end plate and a main shaft, wherein a sealing seat is embedded on the tank body end plate, the top end of the sealing seat is located inside the tank body, the main shaft rotates through the top end of the sealing seat, and the bottom end of the sealing seat is fixedly connected to the outer side of the tank body end plate;

[0007] A sealing material-dispensing disc is arranged on the sealing seat located inside the tank body, and the sealing material-dispensing disc comprises a material-dispensing portion sleeved on the sealing seat and a connecting portion detachably connected to the main shaft, and the material-dispensing portion is rotatably connected to the peripheral side of the sealing seat;

[0008] A sealing packing is arranged between the sealing seat and the main shaft, and a packing gland for pressing is arranged in cooperation therewith.

[0009] Furthermore, a water cut-off groove is provided on the main shaft.

[0010] Furthermore, the detachable connection is specifically: the connecting portion and the main shaft are connected and fixed by a pin.

[0011] Furthermore, the detachable connection may also be: the connecting portion 62 is connected to the main shaft 2 via threads.

[0012] Furthermore, an O-ring is provided between the material-moving portion and the sealing seat.

[0013] Furthermore, the number of the O-rings is greater than one.

[0014] Furthermore, the gland cap of the packing gland is connected to the bottom end of the sealing seat by screws.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model adopts double-effect internal and external seals for the shaft seal of water washing tank equipment, which increases the timeliness of the seal and reduces the maintenance and replacement cost of the seal.

[0017] 2. The utility model adopts an O-ring and a packing combination to seal the rotating main shaft and the end plate, and the relative structure of the two shaft seals is commonly used and low in cost. The combined structure is a packing seal used for the outer seal of the groove. The seal has high adaptability and limitation under this working condition, and is easy to disassemble and maintain.

[0018] 3. The utility model is provided with a water cut-off groove on the main shaft to further prevent water drops caused by micro-leakage from entering the bearing; the groove is sealed with an O-ring, and the sealing material-dispensing disk and the shaft are screwed in and out through threads, so that the O-ring is easy to replace, and then fixed to the shaft through a pin shaft, and the shaft drives the sealing material-dispensing disk to rotate, and the solid impurities in the mixed liquid at that place in the groove are thrown off, thereby reducing the frequency of damage to the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a cross-sectional view of the combined sealing structure of the end plate and shaft of the water washing tank of the utility model.

[0022] Among them: 1 is the end plate of the tank body; 2 is the main shaft; 3 is the sealing seat; 4 is the sealing packing; 5 is the packing gland; 51 is the gland cap; 6 is the sealing material plate; 61 is the material plate; 62 is the connecting part; 7 is the water cut-off groove; 8 is the pin shaft; 9 is the O-ring; DETAILED DESCRIPTION

[0023] Here, exemplary embodiments will be described in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. Instead, they are only examples of devices consistent with some aspects of the present utility model as detailed in the attached claims.

[0024] Example

[0025] A combined sealing structure of a washing tank end plate and a shaft, comprising a tank end plate 1 and a main shaft 2, wherein a sealing seat 3 is embedded on the tank end plate 1, the top of the sealing seat 3 is located inside the tank, the main shaft 2 rotates through the top of the sealing seat 3, and the bottom of the sealing seat 3 is fixedly connected to the outer side of the tank end plate 1;

[0026] A sealing material-dispensing disc 6 is provided on the sealing seat 3 located inside the tank body. The sealing material-dispensing disc 6 comprises a material-dispensing portion 61 sleeved on the sealing seat 3 and a connecting portion 62 detachably connected to the main shaft 2. The material-dispensing portion 61 is rotatably connected to the peripheral side of the sealing seat 3.

[0027] A sealing packing 4 is arranged between the sealing seat 3 and the main shaft 2, and a packing gland 5 for compression is arranged in cooperation therewith.

[0028] The shaft drives the sealing material disc to rotate, and the solid impurities in the mixed liquid in the groove are stripped off, thereby reducing the frequency of damage to the seal.

[0029] Furthermore, a water cut-off groove 7 is provided on the main shaft 2 to further prevent water from dripping into the bearing due to micro-leakage.

[0030] Furthermore, the detachable connection is specifically as follows: the connecting portion 62 and the main shaft 2 are connected and fixed via a pin shaft 8 .

[0031] Furthermore, the detachable connection specifically includes: the connecting portion 62 is connected to the main shaft 2 via threads.

[0032] The groove is sealed with an O-ring, and the sealing material-dispensing plate and the shaft are screwed in and out through threads, so that the O-ring is easy to replace, and then fixed to the shaft through a pin shaft.

[0033] Furthermore, an O-ring 9 is provided between the material-moving portion 61 and the sealing seat 3 .

[0034] Furthermore, the number of O-rings 9 is greater than one.

[0035] The utility model adopts an O-ring 9 and a packing combination to seal the rotating main shaft 2 and the tank end plate 1, and the relative structure of the two shaft seals is commonly used and low in cost. The combined structure is that the packing seal is used for the outer seal of the tank. The seal has high adaptability and limitation under this working condition, and is easy to disassemble and maintain.

[0036] Furthermore, the gland cap 51 of the packing gland 5 is connected to the bottom end of the sealing seat 3 by screws.

[0037] The method of using the utility model is as follows: the bottom end of the sealing seat 3 is first fixedly connected to the outer side of the tank end plate 1, an O-ring 9 is installed on the peripheral side of the sealing seat 3, the material-dispensing portion 61 of the sealing material-dispensing disk 6 is sleeved on the sealing seat 3, the main shaft 2 is screwed in and out through the thread in the connecting portion 62 of the sealing material-dispensing disk 6, and then fixed to the main shaft 2 through the pin 8, the main shaft 2 drives the sealing material-dispensing disk 6 to rotate, and the solid impurities in the mixed liquid at that place in the tank are thrown off, reducing the frequency of damage to the seal, and a water-breaking groove 7 is provided on the main shaft 2 to further prevent water dripping into the bearing caused by micro-leakage.

[0038] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0039] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A combined sealing structure of a washing tank end plate and a shaft, comprising a tank end plate (1) and a main shaft (2), characterized in that: A sealing seat (3) is embedded on the end plate (1) of the tank body, the top end of the sealing seat (3) is located inside the tank body, the main shaft (2) rotates through the top end of the sealing seat (3), and the bottom end of the sealing seat (3) is fixedly connected to the outer side of the end plate (1) of the tank body; A sealing material-dispensing disc (6) is provided on the sealing seat (3) located inside the groove body, and the sealing material-dispensing disc (6) comprises a material-dispensing portion (61) sleeved on the sealing seat (3) and a connecting portion (62) detachably connected to the main shaft (2), and the material-dispensing portion (61) is rotatably connected to the peripheral side of the sealing seat (3); A sealing packing (4) is arranged between the sealing seat (3) and the main shaft (2), and a packing gland (5) for tightening is arranged in cooperation therewith.

2. A combined sealing structure of a washing tank end plate and a shaft according to claim 1, characterized in that: The main shaft (2) is provided with a water cut-off groove (7).

3. The combined sealing structure of the end plate and the shaft of a washing tank according to claim 1, characterized in that: The detachable connection specifically includes: the connecting portion (62) and the main shaft (2) are connected and fixed via a pin shaft (8).

4. A combined sealing structure of a washing tank end plate and a shaft according to claim 1 or 3, characterized in that: The detachable connection specifically includes: the connecting portion (62) and the main shaft (2) are connected via threads.

5. The combined sealing structure of the end plate and the shaft of a washing tank according to claim 1, characterized in that: An O-type sealing ring (9) is provided between the material-moving portion (61) and the sealing seat (3).

6. A combined sealing structure of a washing tank end plate and a shaft according to claim 5, characterized in that: The number of the O-rings (9) is greater than one.

7. A combined sealing structure of a washing tank end plate and a shaft according to claim 1, characterized in that: The gland cap (51) of the packing gland (5) is connected to the bottom end of the sealing seat (3) via screws.

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