Wear-resistant screw shaft for papermaking

Abstract

The utility model relates to the technical field of screw shafts, and discloses a wear-resistant screw shaft for papermaking, which comprises a sliding connecting column, the outer part of the sliding connecting column is slidably connected to the inner part of a fixed connecting disc, the outer part of the fixed connecting disc is slidably connected with a sliding limiting block, one end of the outer part of the sliding connecting column is provided with a thread groove, and the thread groove is provided with a thread. And one end of the exterior of the sliding connecting column is in threaded connection with a rotating limiting block, the interior of the rotating shaft column is in threaded connection with a connecting assembly, and the connecting assembly is fixedly connected with a sliding connecting disc. According to the spiral blade fixing structure, one end of the spiral blade abuts against the fixed connecting disc, limiting is carried out through the sliding connecting column and the sliding limiting block, it is ensured that the spiral blade is stably fixed, then the spiral blade is further fixed through the rotating limiting block and the sliding connecting disc, and finally the stability of the overall structure is ensured through the threaded connecting column and the fixed blocking plate; wear resistance and reliability of the equipment are improved, and long-term use is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral shaft technical field especially relates to a papermaking wear -resisting spiral shaft. BACKGROUND

[0002] Papermaking is the process of producing paper from plant fibers and waste paper through processing, including the main steps of raw material preparation, fiber separation and beating, paper pulp formation, paper pressing and drying, etc. Through these steps, plant fibers are converted into thin and tough paper, which is widely used for writing, printing, packaging and other applications. Spiral shaft is a kind of shaft with spiral shape, usually used in mechanical transmission system, with spiral grooves, gears and blades on the surface and inside, which realizes the transmission, stirring, lifting and compression of materials through rotation and axial movement. Spiral shaft is commonly used in spiral conveyor, screw pump, mixer and other equipment. Its structure design can improve the flow efficiency of materials, reduce friction loss and make transmission more stable.

[0003] Part of the existing papermaking wear-resistant spiral shaft is usually made of high-strength wear-resistant material, with spiral-shaped blades and gears, and the surface is treated specially to improve wear resistance and corrosion resistance. Its structure generally includes shaft body, spiral blade and fixed connection part. When working, the spiral shaft moves the material along the axial direction by rotating, and the spiral shape of the blade makes the material be effectively transported, stirred and compressed, while reducing wear and tear, ensuring the equipment to maintain high efficiency and stability during long time work. This design can improve the material conveying and stirring effect in papermaking production.

[0004] However, in the specific use process, the design of part of the wear-resistant spiral shaft is usually to fix the spiral blade and the shaft body together, which makes the spiral blade replacement process more tedious. When the spiral blade needs to be replaced due to wear and tear or other reasons, the entire spiral shaft often needs to be disassembled, which not only increases the maintenance cost, but also prolongs the downtime, affecting the production efficiency. In view of the above problems, a papermaking wear-resistant spiral shaft is proposed. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a papermaking wear-resistant spiral shaft, which aims to improve the problem that part of the spiral shaft and the spiral blade are fixedly connected in the prior art, and the spiral blade cannot be replaced separately.

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

[0007] A papermaking wear-resistant spiral shaft, comprising a rotating shaft column, one end of the rotating shaft column is fixedly connected with a fixed connection disc, the inside of the fixed connection disc is slidably connected with a mounting mechanism;

[0008] The mounting mechanism comprises a sliding connecting column, the outer part of the sliding connecting column is slidingly connected in the inner part of the fixed connecting disc, the outer part of the fixed connecting disc is slidingly connected with a sliding limiting block, a threaded groove is formed in the outer part of one end of the sliding connecting column, a rotating limiting block is threadedly connected to the outer part of one end of the sliding connecting column, a connecting assembly is threadedly connected to the inner part of the rotating shaft column, and the connecting assembly is fixedly connected with a sliding connecting disc;

[0009] As a further description of the above technical solution:

[0010] The connecting assembly comprises a threaded connecting column, the outer part of the threaded connecting column is threadedly connected in the inner part of the rotating shaft column, and the outer part of the threaded connecting column is fixedly connected with a fixed barrier plate.

[0011] As a further description of the above technical solution:

[0012] A limiting groove is formed in the outer surface of the rotating shaft column, and an outer rotating spiral blade is rotatably connected to the outer part of the rotating shaft column.

[0013] As a further description of the above technical solution:

[0014] One end of the outer rotating spiral blade is detachably connected to the outer part of the fixed connecting disc, and one end of the outer rotating spiral blade is detachably connected to the outer part of the sliding connecting disc.

[0015] As a further description of the above technical solution:

[0016] The outer part of the fixed barrier plate is slidingly connected to the outer part of the sliding connecting disc, and the inner part of the sliding connecting disc is slidingly connected to the outer part of another sliding connecting column.

[0017] As a further description of the above technical solution:

[0018] The outer part of one of the rotating limiting blocks is slidingly connected to the outer part of the sliding connecting disc, and the outer part of the other rotating limiting block is slidingly connected to the outer part of the fixed connecting disc.

[0019] As a further description of the above technical solution:

[0020] The outer part of the fixed barrier plate is slidingly connected to the outer part of the sliding connecting disc, and the inner part of the sliding connecting disc is slidingly connected to the outer part of another sliding connecting column.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. In the utility model, through the one end is pressed against fixed connecting disc, through the sliding connection column and the sliding limit piece position assurance spiral blade fixed firm, subsequently, rotate limit piece and sliding connecting disc further fixed spiral blade, finally through threaded connection column with fixed baffle ensure the stability of the overall structure, can quick assembly and disassembly, convenient long -term use.

[0023] 2. In the utility model, through wear -resisting layer and smooth layer, enhanced the wear resistance and the cleanliness of the use of the outer rotating spiral blade, improved the efficiency of papermaking, simultaneously, the inside of outer rotating spiral blade is provided with inner rotating spiral blade, under the double guarantee, the wear resistance of outer rotating spiral blade is further increased, thereby efficiency is also improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a kind of papermaking wear-resistant spiral shaft's three-dimensional schematic diagram that the utility model proposes;

[0025] Figure 2 It is the structure schematic diagram of the rotating limit piece of a kind of papermaking wear-resistant spiral shaft that the utility model proposes;

[0026] Figure 3 It is the structure schematic diagram of the limit recess of a kind of papermaking wear-resistant spiral shaft that the utility model proposes

[0027] Figure 4 It is the structure schematic diagram of the inner rotating spiral blade of a kind of papermaking wear-resistant spiral shaft that the utility model proposes

[0028] Figure 5 It is the structure schematic diagram of the wear-resistant layer of a kind of papermaking wear-resistant spiral shaft that the utility model proposes.

[0029] LEGEND:

[0030] 1, rotating shaft column;2, fixed connecting disc;3, outer rotating spiral blade;4, sliding connection column;5, sliding limit piece;6, threaded groove;7, rotating limit piece;8, sliding connecting disc;9, threaded connection column;10, fixed baffle;11, limit recess;12, inner rotating spiral blade;13, wear-resistant layer;14, smooth layer. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] REFER TOFigures 1 to 3 The utility model provides a kind of papermaking wear-resistant spiral shaft, including rotating shaft column 1, rotating shaft column 1 is overall cylindrical, can bear the friction force and impact force of material to shaft in papermaking process, ensure the stability and durability of rotating shaft column 1 in long-term high-speed rotating process, one end of rotating shaft column 1 is fixedly connected with fixed connecting disc 2, fixed connecting disc 2 is discoid, circular hole is opened in the inside of fixed connecting disc 2, for with the sliding connection column 4 of installation mechanism cooperation, installation mechanism is slidably connected in the inside of fixed connecting disc 2, installation mechanism includes sliding connection column 4, sliding connection column 4 is cylindrical, can be linear sliding in fixed connecting disc 2 along axial direction, the outside of sliding connection column 4 is slidably connected in the inside of fixed connecting disc 2, the outside of fixed connecting disc 2 is slidably connected with sliding limit block 5, hole is opened in the inside, can be slid down outside sliding connection column 4 due to its gravity, can limit the position of sliding connection column 4, reduce the friction between itself and fixed connecting disc 2, the outside one end of sliding connection column 4 is equipped with thread groove 6, with the internal thread of rotation limit block 7 compatible, the outside one end of sliding connection column 4 is screw-connected with rotation limit block 7, rotation limit block 7 is blocky, when needing to adjust the fixed tightness of installation mechanism, rotating rotation limit block 7 can be passed through, utilize the effect of thread in the outside rotation of sliding connection column 4, the outside of one of rotation limit block 7 is slidably connected in the outside of sliding connection disc 8, the outside of another rotation limit block 7 is slidably connected in the outside of fixed connecting disc 2;

[0033] The internal thread of the rotating shaft column 1 is connected with a connecting assembly, the connecting assembly comprises a threaded connecting column 9, the threaded connecting column 9 is cylindrical, the outer part of the threaded connecting column 9 is processed with threads matched with the internal threads of the rotating shaft column 1, by rotating the threaded connecting column 9, it can move along the axial direction in the rotating shaft column 1, realizing the close connection or disassembly of the connecting assembly and the rotating shaft column 1, the outer part of the threaded connecting column 9 is connected with the internal part of the rotating shaft column 1, the outer part of the threaded connecting column 9 is fixedly connected with a fixed blocking plate 10, the fixed blocking plate 10 is disc-shaped, used for limiting the position of the sliding connecting disc 8 in the axial direction of the rotating shaft column 1, and to a certain extent, it blocks the papermaking material, preventing it from entering the connecting part of the connecting assembly and the rotating shaft column 1, the outer part of the fixed blocking plate 10 is slidingly connected with the outer part of the sliding connecting disc 8, the inner part of the sliding connecting disc 8 is slidingly connected with the outer part of the other sliding connecting column 4, the connecting assembly is fixedly connected with the sliding connecting disc 8, which has the same effect as the fixed connecting disc 2, used for connection and fixation, the outer surface of the rotating shaft column 1 is provided with a limiting groove 11, the limiting groove 11 is used for cooperating with the outer rotating spiral blade 3, limiting the position of the outer rotating spiral blade 3 on the rotating shaft column 1, and providing a certain guiding effect for the outer rotating spiral blade 3 when it rotates, the outer part of the rotating shaft column 1 is rotatably connected with the outer rotating spiral blade 3, the outer rotating spiral blade 3 is used for conveying the material along the axial direction of the rotating shaft column 1 in the papermaking process, pushing the material forward by the rotation of the spiral blade, realizing the efficient transmission of the papermaking raw material, one end of the outer rotating spiral blade 3 is detachably connected with the outer part of the fixed connecting disc 2, and the other end of the outer rotating spiral blade 3 is detachably connected with the outer part of the sliding connecting disc 8.

[0034] With reference to Figure 1 , Figure 4 and Figure 5 , the inner part of the outer rotating spiral blade 3 is fixedly connected with an inner rotating spiral blade 12, the inner rotating spiral blade 12 is also spiral-shaped, and the spiral directions of the two are consistent, so that they can cooperate with each other when rotating, further enhancing the conveying and stirring effect of the material, the outer part of the outer rotating spiral blade 3 is fixedly connected with a wear-resistant layer 13, the wear-resistant layer 13 is attached to the outer rotating spiral blade 3 by thermal spraying process using hard alloy powder, the hard alloy has extremely high hardness and wear resistance, which can effectively reduce the wear of the outer rotating spiral blade 3 in the friction process with the material, and improve the service life of the outer rotating spiral blade 3, the outer part of the wear-resistant layer 13 is fixedly connected with a smooth layer 14, the smooth layer 14 is also spiral-shaped, attached to the surface of the wear-resistant layer 13, made of polytetrafluoroethylene material, the polytetrafluoroethylene has extremely low friction coefficient, so that the surface of the smooth layer 14 is very smooth, which can not only further reduce the friction between the material and the outer rotating spiral blade 3, reduce energy consumption, but also prevent the material from adhering to the surface of the outer rotating spiral blade 3, ensuring the smoothness of the material conveying.

[0035] Working principle: first, after the long-term use of the screw shaft, the external obvious wear and tear, the worn outer rotating spiral blade 3 is replaced, the outer rotating spiral blade 3 is rotated on the outside of the rotating shaft column 1 according to the limiting groove 11 on the outside of the rotating shaft column 1, one end of the outer rotating spiral blade 3 abuts against the fixed connecting disc 2, then the sliding connecting column 4 is slid into the hole of the fixed connecting disc 2, because the sliding limiting block 5 can slide in the groove of the sliding connecting column 4, under the action of gravity, the sliding limiting block 5 slides downward, thereby limiting the outside of the fixed connecting disc 2 on one side, and it will not fall off, then the rotating limiting block 7 is rotated along the thread groove 6 on the surface of the sliding connecting column 4, thereby limiting the other side of the fixed connecting disc 2, then the sliding connecting disc 8 is slid into one end of the rotating shaft column 1 and abuts against the other end of the outer rotating spiral blade 3, then the above fixing steps are repeated, thereby limiting and fixing the outer rotating spiral blade 3, and the threaded connecting column 9 is rotated into the inside of the rotating shaft column 1, because the fixed barrier plate 10 is fixed on the outside of the threaded connecting column 9, when the threaded connecting column 9 rotates to the fixed barrier plate 10 and presses the sliding connecting disc 8, it stops, thereby limiting and fixing the sliding connecting disc 8, preventing the sliding connecting disc 8 from deviating under rotation, and the outside of the outer rotating spiral blade 3 is coated with wear-resistant material, increasing the wear resistance of the outer rotating spiral blade 3 and improving the service life of the outer rotating spiral blade 3;

[0036] And two material layers are covered on the outside of the outer rotating spiral blade 3, which are wear-resistant layer 13 and smooth layer 14, the wear-resistant layer 13 enhances the wear resistance of the outer rotating spiral blade 3 during use, thereby prolonging the service life of the outer rotating spiral blade 3, and the existence of the smooth layer 14 prevents the outer rotating spiral blade 3 from sticking during use, ensuring the cleanliness of the outer rotating spiral blade 3 and improving the efficiency of papermaking, meanwhile, the inner rotating spiral blade 12 is arranged in the outer rotating spiral blade 3, which further increases the wear resistance of the outer rotating spiral blade 3 and improves the efficiency.

[0037] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wear-resistant spiral shaft for papermaking, comprising a rotating shaft column (1), characterized in that: One end of the rotating shaft (1) is fixedly connected to a fixed connecting plate (2), and an installation mechanism is slidably connected inside the fixed connecting plate (2); The installation mechanism includes a sliding connecting column (4), the outside of which is slidably connected to the inside of the fixed connecting plate (2), the outside of which is slidably connected to a sliding limiting block (5), a threaded groove (6) is provided at one end of the outside of the sliding connecting column (4), a rotation limiting block (7) is threaded at one end of the outside of the sliding connecting column (4), a connecting assembly is threaded inside the rotating shaft column (1), and the connecting assembly is fixedly connected to the sliding connecting plate (8).

2. The wear-resistant spiral shaft for papermaking according to claim 1, characterized in that: The connecting assembly includes a threaded connecting post (9), the external thread of which is connected to the interior of the rotating shaft post (1), and a fixed baffle plate (10) is fixedly connected to the external side of the threaded connecting post (9).

3. The wear-resistant spiral shaft for papermaking according to claim 1, characterized in that: The outer surface of the rotating shaft (1) is provided with a limiting groove (11), and the outer rotating helical blade (3) is rotatably connected to the outside of the rotating shaft (1).

4. The wear-resistant spiral shaft for papermaking according to claim 3, characterized in that: One end of the external rotating spiral blade (3) is detachably connected to the outside of the fixed connecting plate (2), and the other end of the external rotating spiral blade (3) is detachably connected to the outside of the sliding connecting plate (8).

5. A wear-resistant spiral shaft for papermaking according to claim 2, characterized in that: The fixed barrier plate (10) is externally slidably connected to the outside of the sliding connecting plate (8), and the inside of the sliding connecting plate (8) is slidably connected to the outside of another sliding connecting column (4).

6. The wear-resistant spiral shaft for papermaking according to claim 1, characterized in that: One of the rotation limiting blocks (7) slides outside the sliding connecting plate (8), while the other rotation limiting block (7) slides outside the fixed connecting plate (2).

7. A wear-resistant spiral shaft for papermaking according to claim 3, characterized in that: The outer rotating spiral blade (3) is fixedly connected to the inner rotating spiral blade (12), the outer rotating spiral blade (3) is fixedly connected to the outside of the wear-resistant layer (13), and the wear-resistant layer (13) is fixedly connected to the outside of the smooth layer (14).

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