A screw conveyor for preventing powder leakage

Abstract

The utility model relates to a spiral conveyor of leakproof powder, including conveyor shell, be provided with conveying spiral axle in the conveyor shell, its characterized in that: the both ends of conveyor shell all are provided with the connecting flange, the both ends of conveying spiral axle extend outward and are provided with the end head axle, the end head axle is sequentially assembled with the axle end plate, oil seal seat and oil tank along its axial direction on, the end head axle on conveying spiral axle one side is connected with the drive motor, the utility model discloses setting up the oil seal in the oil seal seat, can directly seal the junction of conveying spiral axle and conveyor shell, effectively prevent the leakage of powdery material, simultaneously, through setting up the oil tank, the lubricating oil in the oil tank can lubricate the oil seal, reduce the wear and tear of oil seal, prolong the service life of oil seal, further avoid the problem of powder leakage due to the wear and tear of oil seal.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, specifically to a screw conveyor that prevents powder leakage. Background Technology

[0002] A screw conveyor is a device that uses a motor to drive a screw shaft to rotate, so that materials are conveyed forward along the conveyor casing. It is widely used in the conveying of powdered materials in industries such as grain, chemical, and building materials.

[0003] In existing technologies, the connection between the conveying screw shaft and both ends of the conveyor casing of a screw conveyor typically employs a simple sealing structure, such as a single oil seal or packing seal. However, during long-term use, due to the lack of effective lubrication and protection of the sealing components, they are prone to failure due to wear, leading to leakage of powdery materials from the connection. This not only causes material waste but also pollutes the working environment and may even affect the normal operation of the equipment, increasing maintenance costs and frequency.

[0004] Therefore, there is a need for a screw conveyor that can effectively prevent powder leakage and improve the service life of sealing components to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a leak-proof screw conveyor. This conveyor, through optimized sealing structure and lubrication method, can effectively prevent powder leakage and extend the service life of sealing components.

[0006] The technical solution of this utility model is as follows: A leak-proof screw conveyor includes a conveyor housing, within which a conveying screw shaft is disposed. Connecting flanges are provided at both ends of the conveyor housing. End shafts extend outward from both ends of the conveying screw shaft. An end plate, an oil seal seat, and an oil tank are sequentially mounted on the end shaft along its axial direction. The shaft end plate is fixed to the connecting flange by bolts; The oil seal seat is fixed to the shaft end plate by bolts, and an oil seal is provided inside the oil seal seat; The oil tank is fixed on the oil seal seat; A drive motor is connected to the end shaft on one side of the conveying spiral shaft.

[0007] Furthermore, a pad, a first wear-resistant plate, and a second wear-resistant plate are sequentially arranged on the end shaft within the oil seal seat and in a direction away from the shaft end plate.

[0008] Furthermore, a felt is provided on the end shaft at the outer end of the oil tank, and an oil tank cover is provided on the outer side of the felt, the oil tank cover pressing and fixing the felt onto the oil tank.

[0009] Furthermore, a sleeve is fixed to the outer side of the shaft end plate by studs. The sleeve is located outside the oil tank and oil seal seat to provide protection for both.

[0010] Furthermore, the connecting flange is provided with a first positioning hole, and the shaft end plate is provided with a first positioning shaft on the side facing the connecting flange. The shaft end plate is positioned and installed by cooperating with the first positioning hole of the connecting flange through the first positioning shaft.

[0011] Furthermore, a second positioning hole is provided on the shaft end plate, and a second positioning shaft is provided on the side of the oil seal seat facing the shaft end plate. The oil seal seat is positioned and installed by cooperating with the second positioning hole of the shaft end plate through the second positioning shaft.

[0012] This utility model has the following beneficial effects: 1. This utility model sets an oil seal inside the oil seal seat, which can directly seal the connection between the conveying screw shaft and the conveyor housing, effectively preventing the leakage of powdery materials; at the same time, by setting an oil tank, the lubricating oil in the oil tank can lubricate the oil seal, reduce the wear of the oil seal, extend the service life of the oil seal, and further avoid the problem of powder leakage caused by oil seal wear.

[0013] 2. The pad, wear-resistant plate one, and wear-resistant plate two arranged sequentially on the end shaft within the oil seal seat can reduce direct wear between the end shaft and the oil seal seat, thereby improving the overall durability of the equipment.

[0014] 3. The felt and oil tank cover provided at the outer end of the oil tank of this utility model can prevent the lubricating oil in the oil tank from leaking, and can also block external dust and other impurities from entering the oil tank, thus ensuring the cleanliness of the lubricating oil.

[0015] 4. The sleeve fixed to the outside of the shaft end plate of this utility model protects the oil tank and oil seal seat, preventing damage caused by collisions with external objects.

[0016] 5. The present invention achieves positioning and installation between the connecting flange and the shaft end plate, and between the shaft end plate and the oil seal seat, through the cooperation of the positioning shaft and the positioning hole, which facilitates the precise assembly of each component and improves installation efficiency and connection stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A; Figure 4 This is a partial cross-sectional view of the present invention. Figure 5 This is a schematic diagram of the connecting flange of this utility model; Figure 6 This is a schematic diagram of the end shaft of this utility model; Figure 7 This is a schematic diagram of the structure of the oil seal seat of this utility model; The reference numerals in the figure are as follows: 1. Conveyor housing; 2. Conveyor screw shaft; 3. Connecting flange; 4. End shaft; 5. Shaft end plate; 6. Oil seal seat; 7. Oil tank; 8. Oil seal; 9. Drive motor; 10. Pad plate; 11. Wear-resistant plate one; 12. Wear-resistant plate two; 13. Felt; 14. Oil tank cover; 15. Sleeve; 16. First positioning hole; 17. First positioning shaft; 18. Second positioning hole; 19. Second positioning shaft. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] See Figures 1 to 7 A screw conveyor for preventing powder leakage includes a conveyor housing 1, a conveying screw shaft 2 disposed inside the conveyor housing 1, connecting flanges 3 at both ends of the conveyor housing 1, and end shafts 4 extending outward from both ends of the conveying screw shaft 2; a shaft end plate 5, an oil seal seat 6, and an oil tank 7 are sequentially mounted on the end shaft 4 along its axial direction, wherein: the shaft end plate 5 is fixed to the connecting flange 3 by bolts; the oil seal seat 6 is fixed to the shaft end plate 5 by bolts, and an oil seal 8 is disposed inside the oil seal seat 6; the oil tank 7 is fixed to the oil seal seat 6; and a drive motor 9 is connected to the end shaft 4 on one side of the conveying screw shaft 2.

[0020] Furthermore, on the end shaft 4, a pad 10, a first wear-resistant plate 11, and a second wear-resistant plate 12 are sequentially arranged inside the oil seal seat 6 and in a direction away from the shaft end plate 5. The pad 10 and the shaft end plate 5 are provided with positioning holes, and positioning pins are installed on the positioning holes to prevent the pad 10 from rotating.

[0021] Furthermore, a felt 13 is provided on the end shaft 4 at the outer end of the oil tank 7, and an oil tank cover 14 is provided on the outer side of the felt 13. The oil tank cover 14 presses and fixes the felt 13 to the oil tank 7.

[0022] Furthermore, a sleeve 15 is fixed to the outer side of the shaft end plate 5 by studs. The sleeve 15 is located outside the oil tank 7 and the oil seal seat 6 to provide protection for both.

[0023] Furthermore, a first positioning hole 16 is provided on the connecting flange 3, and a first positioning shaft 17 is provided on the side of the shaft end plate 5 facing the connecting flange 3. The shaft end plate 5 is positioned and installed by cooperating with the first positioning hole 16 of the connecting flange 3 through the first positioning shaft 17.

[0024] Furthermore, a second positioning hole 18 is provided on the shaft end plate 5, and a second positioning shaft 19 is provided on the side of the oil seal seat 6 facing the shaft end plate 5. The oil seal seat 6 is positioned and installed by cooperating with the second positioning hole 18 of the shaft end plate 5 through the second positioning shaft 19.

[0025] In use, the drive motor 9 rotates the conveying screw shaft 2, and the material is conveyed within the conveyor housing 1. The oil seal 8 seals the connection between the conveying screw shaft 2 and the conveyor housing 1 to prevent material leakage; the lubricating oil in the oil tank 7 lubricates the oil seal 8, reducing its wear; the pad 10, wear-resistant plate 11, and wear-resistant plate 12 reduce wear between the end shaft 4 and the oil seal seat 6; the felt 13 and the oil tank cover 14 prevent lubricating oil leakage and impurities from entering; the sleeve 15 protects the oil tank 7 and the oil seal seat 6; the positioning shaft and positioning hole ensure accurate and stable assembly of all components.

[0026] In the description of the utility model, it should be understood that the terms "both ends", "outer end", "left side", "one side", "lower part", "upper part", "inner part", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model 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. Therefore, they should not be construed as limitations on the utility model.

[0027] In utility models, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," and "fixing" 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A screw conveyor for preventing powder leakage, comprising a conveyor housing (1), wherein a conveying screw shaft (2) is disposed within the conveyor housing (1), characterized in that: Both ends of the conveyor housing (1) are provided with connecting flanges (3), and both ends of the conveying screw shaft (2) are provided with end shafts (4) extending outward; the end shafts (4) are sequentially equipped with shaft end plates (5), oil seal seats (6) and oil tanks (7) along their axial direction; the shaft end plates (5) are fixed to the connecting flanges (3) by bolts; the oil seal seats (6) are fixed to the shaft end plates (5) by bolts, and an oil seal (8) is provided inside the oil seal seats (6); the oil tanks (7) are fixed to the oil seal seats (6); a drive motor (9) is connected to the end shafts (4) on one side of the conveying screw shaft (2).

2. The leak-proof screw conveyor according to claim 1, characterized in that: The end shaft (4) is provided with a pad (10), a wear-resistant plate one (11) and a wear-resistant plate two (12) in sequence inside the oil seal seat (6) and in the direction away from the shaft end plate (5).

3. The leak-proof screw conveyor according to claim 2, characterized in that: A felt (13) is provided on the end shaft (4) at the outer end of the oil tank (7). An oil tank cover (14) is provided on the outer side of the felt (13). The oil tank cover (14) presses and fixes the felt (13) onto the oil tank (7).

4. The leak-proof screw conveyor according to claim 3, characterized in that: A sleeve (15) is fixed to the outside of the shaft end plate (5) by a stud. The sleeve (15) is located outside the oil tank (7) and the oil seal seat (6) to provide protection for both.

5. The leak-proof screw conveyor according to claim 4, characterized in that: The connecting flange (3) has a first positioning hole (16), and the shaft end plate (5) has a first positioning shaft (17) on the side facing the connecting flange (3). The shaft end plate (5) is positioned and installed by cooperating with the first positioning hole (16) of the connecting flange (3) through the first positioning shaft (17).

6. The leak-proof screw conveyor according to claim 5, characterized in that: The shaft end plate (5) is provided with a second positioning hole (18), and the oil seal seat (6) is provided with a second positioning shaft (19) on the side facing the shaft end plate (5). The oil seal seat (6) is positioned and installed by cooperating with the second positioning hole (18) of the shaft end plate (5) through the second positioning shaft (19).

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