Double-sealing structure of auger conveyor

Abstract

The utility model belongs to the technical field of conveyors, and particularly relates to a double-sealing structure of an auger conveyor, which comprises a sealing piece sleeve, a first wool felt sealing ring and a second wool felt sealing ring, an oil filling spacer bush is arranged between the first wool felt sealing ring and the second wool felt sealing ring, and a sealing gasket pressing plate is arranged on the second wool felt sealing ring. Compared with the prior art, by means of the ingenious structural design, good sealing can be achieved, and powder waste is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveyors, and in particular relates to a double-sealing structure of an auger conveyor. Background Art

[0002] Auger conveyor, also known as screw conveyor, is a device that uses a motor to drive the spiral rotation and pushes the material through the rotating spiral blades to achieve transportation. It is widely used in industries such as building materials, chemicals, and grain processing.

[0003] At present, there are at least the following problems with the auger conveyors used in the flour and rice noodle food industry: the existing auger conveyors have airtight seals at the ends, which have poor sealing properties and are prone to powder leakage after a period of use, resulting in powder waste (according to statistics, some manufacturers waste as much as one million yuan per year in powder).

[0004] In view of this, the utility model aims to provide a double sealing structure of an auger conveyor, which can achieve good sealing and prevent powder waste through ingenious structural design. Utility Model Content

[0005] The purpose of the utility model is to provide a double sealing structure of an auger conveyor to address the deficiencies of the existing technology. The double sealing structure can achieve good sealing and prevent powder waste through ingenious structural design.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double sealing structure of an auger conveyor includes a sealing sleeve, a first wool felt sealing ring arranged in the sealing sleeve and sleeved on the outside of the auger shaft, and a second wool felt sealing ring, a refueling sleeve is provided between the first wool felt sealing ring and the second wool felt sealing ring, and a sealing gasket pressure plate is provided on the second wool felt sealing ring.

[0008] As an improvement to the double sealing structure of the auger conveyor of the present invention, the sealing sleeve includes a circular ring block and four screw columns evenly distributed on the upper surface of the circular ring block, and the first wool felt sealing ring and the second wool felt sealing ring are both arranged on the inner wall of the circular ring of the circular ring block.

[0009] As an improvement to the double sealing structure of the auger conveyor of the present invention, fastening screws and screw holes are provided on the annular block, and screw holes are formed in the screw connection column.

[0010] As an improvement to the double sealing structure of the auger conveyor of the present invention, the sealing gasket pressure plate includes a pressure plate body and connecting blocks extending outward from the four sides of the pressure plate body. During assembly, the connecting block is located on one side of the screw column.

[0011] As an improvement to the double sealing structure of the auger conveyor of the present invention, a through hole and a protrusion extending downward from the tablet pressing plate body are formed in the central area of ​​the tablet pressing plate body, and an L-shaped step is formed between the outer side of the protrusion and the tablet pressing plate body.

[0012] As an improvement to the double sealing structure of the auger conveyor of the present invention, a through hole is formed on the connecting block, and the fastening screw passes through the through hole and then through the nut.

[0013] As an improvement to the double-sealing structure of the auger conveyor of the present invention, the outer edge of the connecting block is arc-shaped and matches the outer edge of the circular ring block.

[0014] As an improvement of the double sealing structure of the auger conveyor of the utility model, the outer end surface of the screw column is arc-shaped and is located on the same curved surface as the outer end surface of the circular ring block.

[0015] The utility model also provides an auger conveyor, including an auger shaft, a first fixed flange and a second fixed flange arranged at both ends of the auger shaft, a first sealing assembly arranged on the first fixed flange, a second sealing assembly arranged on the second fixed flange, a first bearing assembly arranged at one end of the first sealing assembly away from the first fixed flange, and a second bearing assembly arranged at the second sealing assembly away from the second fixed flange, the first sealing assembly and the second sealing assembly both including a sealing sleeve, a first wool felt sealing ring and a second wool felt sealing ring arranged in the sealing sleeve and sleeved on the outside of the auger shaft, an oiling sleeve is arranged between the first wool felt sealing ring and the second wool felt sealing ring, and a sealing gasket pressure plate is provided on the second wool felt sealing ring.

[0016] Wherein, the sealing sleeve is fixed to the first fixing flange or the second fixing flange through a first fastener.

[0017] The sealing gasket pressing plate is fixed on the sealing sleeve.

[0018] The first bearing assembly is configured as a seat bearing, and the seat bearing is sleeved on the auger shaft.

[0019] As an improvement to the auger conveyor of the present invention, from outside to inside, the second bearing assembly includes a bearing seat, a universal bearing and a bearing sleeve, and the bearing sleeve is sleeved on the auger shaft.

[0020] The bearing seat is fixed to the sealing sleeve by a third fastener.

[0021] The bearing sleeve is fixed to the auger shaft via a fourth fastener.

[0022] Compared with the existing technology, the present invention can achieve good sealing and prevent powder waste through its ingenious structural design. Specifically, the present invention realizes double sealing by providing a first wool felt sealing ring and a second wool felt sealing ring. Edible oil is added to the oiling sleeve to provide good lubrication, thus avoiding frictional heat generation and extending the service life of the first and second wool felt sealing rings. A sealing pad pressing plate is used to squeeze the second wool felt sealing ring. Even if the wool felt sealing ring is worn, the nut on the screw can be adjusted to ensure good sealing under the action of squeezing, thereby effectively preventing powder leakage and avoiding powder waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 It is a schematic cross-sectional structural diagram of the sealing sleeve in the present utility model.

[0025] Figure 3 This is a front view structural diagram of the sealing sleeve in the present invention.

[0026] Figure 4 This is a front view structural diagram of the sealing gasket pressing plate in the present invention.

[0027] Figure 5 It is a schematic cross-sectional view of the sealing gasket pressing plate in the present invention.

[0028] Figure 6 This is a schematic cross-sectional view of the oil filling spacer in the utility model.

[0029] Figure 7 It is a schematic cross-sectional view of the structure of the auger conveyor of the present invention.

[0030] Figure 8 It is a schematic cross-sectional structural diagram of the first bearing assembly and the first sealing assembly after assembly in the present invention.

[0031] Figure 9 It is a schematic cross-sectional structural diagram of the bearing seat in the present utility model.

[0032] Figure 10 It is a schematic cross-sectional view of the universal bearing in the present invention.

[0033] Figure 11 It is a schematic cross-sectional structural diagram of the bearing sleeve in the present utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] like Figures 1 to 11 As shown, the utility model provides an auger conveyor, including an auger shaft 1, a first fixed flange 2 and a second fixed flange 3 arranged at both ends of the auger shaft 1, a first sealing assembly 4 arranged on the first fixed flange 2, a second sealing assembly 5 arranged on the second fixed flange 3, a first bearing assembly 6 arranged at the end of the first sealing assembly 4 away from the first fixed flange 2, and a second bearing assembly 7 arranged at the second sealing assembly 5 away from the second fixed flange 3, the first sealing assembly 4 and the second sealing assembly 5 both include a sealing sleeve 41, a first wool felt sealing ring 42 and a second wool felt sealing ring 43 arranged in the sealing sleeve 41 and sleeved on the outside of the auger shaft 1, an oiling sleeve 44 is arranged between the first wool felt sealing ring 42 and the second wool felt sealing ring 43, and a sealing gasket pressing plate 8 is provided on the second wool felt sealing ring 43. The utility model realizes double sealing by arranging the first wool felt sealing ring 42 and the second wool felt sealing ring 43. The oiling spacer 44 is added with edible oil to play a good lubricating role, thereby avoiding heat generation by friction and extending the service life of the first wool felt sealing ring 42 and the second wool felt sealing ring 43. The sealing pad pressing plate 8 is used to extrude the second wool felt sealing ring 43. In this way, even if the wool felt sealing ring is worn, it can still play a good sealing role under the action of extrusion, thereby preventing powder leakage and avoiding waste of powder.

[0037] The sealing sleeve 41 is fixed to the first fixing flange 2 or the second fixing flange 3 by a first fastener 9 (specifically a hexagon socket head screw in this embodiment).

[0038] The sealing gasket pressing plate 8 is fixed on the sealing sleeve 41 .

[0039] The first bearing assembly 6 is configured as a seat bearing, and the seat bearing is sleeved on the auger shaft 1. The sealing sleeve 41 is fixedly connected to the seat body of the first bearing assembly 6.

[0040] From outside to inside, the second bearing assembly 7 includes a bearing seat 71 , a universal bearing 72 and a bearing sleeve 73 . The bearing sleeve 73 is sleeved on the auger shaft 1 .

[0041] The bearing seat 71 is fixed to the sealing sleeve 41 by a third fastener 11 (specifically a hexagon socket screw in this embodiment).

[0042] The bearing sleeve 73 is secured to the auger shaft 1 via a fourth fastener 12 (specifically, a set screw in this embodiment). The ingenious design of the second bearing assembly 7, employing a universal joint 72 with a movable inner ring and a stationary outer ring, ensures concentricity during shaft rotation, preventing shaft breakage, significantly extending the conveyor's service life, and reducing consumable material waste.

[0043] The sealing sleeve 41 comprises a circular ring block 411 and four screw-connecting posts 412 evenly distributed around the circumference of the upper surface of the ring block 411. A first wool felt sealing ring 42 and a second wool felt sealing ring 43 are both mounted within the inner wall of the ring block 411. The ring block 411 is provided with a screw 413 and a screw hole 414. The screw-connecting posts 412 are formed with screw holes 415. The sealing sleeve 41 and the first bearing assembly 6 are connected via screws disposed within the screw holes 415. The first fastener 9 passes through the screw holes 414 and is embedded within the first fixing flange 2 or the second fixing flange 3.

[0044] The sealing gasket pressure plate 8 includes a pressure plate body 81 and connecting blocks 82 extending outward from the four sides of the pressure plate body 81 (four L-shaped structures are formed on the sealing gasket pressure plate 8). During assembly, the connecting block 82 is located on one side of the screw column 412 (the screw column 412 is set at the corner of the L-shaped structure). The outer edge of the connecting block 82 is arc-shaped, matching the shape of the annular block 411. A connecting hole 821 is provided on the connecting block 82, and the screw 413 is inserted into the connecting hole 821 and then locked by a nut to achieve a fixed connection between the sealing sleeve 41 and the sealing gasket pressure plate 8. By adjusting the nut on the screw and moving downward, the wool felt is squeezed to deform the wool felt and fit tightly against the shaft, thereby achieving a sealing effect.

[0045] A through hole 811 and a protrusion 812 extending downward from the plate body 81 are formed in the central region of the plate body 81. An L-shaped step 813 is formed between the outer side of the protrusion 812 and the plate body 81. The inner side of the protrusion 812 forms a portion of the through hole 811. The protrusion 812 precisely presses against the second wool felt sealing ring 43, stretching it and achieving a better sealing effect.

[0046] In short, the utility model can achieve good sealing and prevent powder waste through ingenious structural design. Moreover, by using universal bearings, the concentricity of the machine shaft can be guaranteed, solving the problem of broken shaft in the prior art, greatly extending the service life of the conveyor and reducing the waste of consumables.

[0047] Based on the disclosure and teachings of the above description, those skilled in the art may also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A double sealing structure of an auger conveyor, characterized by: It includes a sealing sleeve, a first wool felt sealing ring arranged in the sealing sleeve and sleeved on the outside of the auger shaft, and a second wool felt sealing ring. An oiling sleeve is provided between the first wool felt sealing ring and the second wool felt sealing ring, and a sealing gasket pressing plate is provided on the second wool felt sealing ring.

2. The double sealing structure of the auger conveyor according to claim 1 is characterized in that: The sealing sleeve includes a circular ring block and four screw connection columns evenly distributed on the upper surface of the circular ring block. The first wool felt sealing ring and the second wool felt sealing ring are both arranged on the inner wall of the circular ring of the circular ring block.

3. The double sealing structure of the auger conveyor according to claim 2 is characterized in that: The annular block is provided with a fastening screw and a screw hole, and the screw hole is formed in the screw connection column.

4. The double sealing structure of the auger conveyor according to claim 3 is characterized in that: The sealing gasket pressing plate includes a pressing plate body and connecting blocks extending outward from four sides of the pressing plate body. During assembly, the connecting blocks are located on one side of the screw connection column.

5. The double sealing structure of the auger conveyor according to claim 4 is characterized in that: A through hole and a protrusion extending downward from the tablet pressing plate body are formed in the central area of ​​the tablet pressing plate body, and an L-shaped step is formed between the outer side of the protrusion and the tablet pressing plate body.

6. The double sealing structure of the auger conveyor according to claim 4, characterized in that: A through hole is formed on the connecting block, and the fastening screw passes through the through hole and then passes through the nut.

7. The double sealing structure of the auger conveyor according to claim 4, characterized in that: The outer edge of the connecting block is arc-shaped and matches the outer edge of the circular ring block.

8. The double sealing structure of the auger conveyor according to claim 2, characterized in that: The outer end surface of the screw connection column is arc-shaped and is located on the same curved surface as the outer end surface of the circular ring block.

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