Special three-screw extruder gearbox structure for blending modified materials

Abstract

The utility model discloses a special three-screw extruder gearbox structure for a blending modified material, belongs to the technical field of gearboxes, and aims to solve the problems that many impurities are doped in internal lubricating oil due to collision between gears, and the service life of the gearbox is influenced. Through a guide plate, a filter screen frame, a spring, a limiting plate and a movable plate, lubricating oil thrown out in the moving process of driven teeth and driving teeth is guided through the guide plate, impurities in the lubricating oil are filtered through the filter screen frame, and in the regular cleaning process of workers, the movable plate moves in the opposite direction, so that the impurities in the lubricating oil are filtered out. One side of each limiting plate is separated from the filter screen frame, so that the filter screen frame can be conveniently and completely moved out of the gearbox body of the three-screw extruder, impurities in the gearbox body of the three-screw extruder can be conveniently and intensively cleaned by a worker, and the oil leakage condition of untight sealing of equipment caused by too many disassembly times is avoided; and the stability in the gearbox body of the three-screw extruder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a gear box structure of a three-screw extruder specially used for blended modified materials. Background Art

[0002] The gearbox structure of the three-screw extruder is an important part of it. It is responsible for transmitting power and ensuring that the three screws can work in coordination. For the three-screw extruder dedicated to blending and modifying materials, its gearbox structure design must meet the requirements of high strength, high torque transmission and long-term stable operation to adapt to high loads and complex working conditions.

[0003] Chinese patent authorization announcement number CN203919658U discloses a three-screw extruder, including a base frame, a motor, a reducer, a gear box, a feed barrel, an extrusion barrel, and a die head. A hopper is provided on the feed barrel, the gear box body, the feed barrel body and the extrusion barrel body are connected in sequence, and the die head is connected to the extrusion barrel. The three-screw extruder has a long screw, a first short screw and a second short screw. The first short screw and the second short screw are respectively located on both sides of the long screw and are meshed with the long screw. The front half of the long screw is in the feed barrel, and the rear half of the long screw is in the extrusion barrel. The first short screw and the second short screw are in the feed barrel. The first short screw, the long screw and the second short screw are each connected to the corresponding gear in the gear box, and the reducer is connected to the driving shaft in the gear box. The utility model has excellent exhaust performance, excellent mixing and plasticizing effects, and the use of a single screw in the extrusion barrel can reduce power consumption;

[0004] The above-mentioned prior art solution has the following shortcomings: during the use of the three-screw extruder, since it needs to rotate at high speed for a long time, its shaft sleeve needs to be lubricated in time. When the gears inside it rotate for a long time, the collision between the gears will cause a lot of impurities to be mixed in the internal lubricating oil, which will affect the life of its gear box. It is necessary to design a three-screw extruder gear box structure specially for blended modified materials to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a gearbox structure of a three-screw extruder specially used for blending and modifying materials, so as to solve the problem in the background technology that the collision between gears will cause a lot of impurities to be mixed in the internal lubricating oil, thus affecting the life of the gearbox.

[0006] To achieve the above object, the utility model provides the following technical solutions: a three-screw extruder gearbox structure for blending and modifying materials, which is provided with a three-screw extruder gearbox body, the top of which is connected with a box cover, and the interior of which is provided with a mounting groove;

[0007] include:

[0008] The driving teeth are connected to the inside of the mounting groove, the inside of the mounting groove is evenly connected with driven teeth, and the driven teeth are meshingly connected, the driving teeth are meshingly connected with the driven teeth, the inside of the mounting groove is connected with a guide plate, and the guide plate is located below the driving teeth, the inside of the mounting groove is connected with a filter frame, and a limiting mechanism is evenly arranged on one side of the three-screw extruder gear box body, and the stability of the filter frame after being connected to the three-screw extruder gear box body is improved by the limiting mechanism; the fixing mechanism is arranged at the top of the three-screw extruder gear box body, and the stable connection between the box cover and the three-screw extruder gear box body is achieved by the fixing mechanism.

[0009] Preferably, the limiting mechanism includes a limiting seat connected to one side of the gear box of the three-screw extruder, the inside of the limiting seat is evenly connected with springs, and one end of the spring is connected to a support rod, the support rod passes through the inside of the limiting seat, one end of the support rod is connected to a limiting plate, and the limiting plate is fitted with one side of the filter frame, and one side of the support rod is connected to a movable plate.

[0010] Preferably, the support rods are provided in two groups, each group of the support rods is provided with three support rods, and the support rods are symmetrically arranged with respect to the central axis of the filter frame.

[0011] Preferably, the fixing mechanism includes a threaded rod connected to the top of the gear box of the three-screw extruder, the interior of the box cover is evenly provided with through holes, the threaded rods all penetrate the interior of the through holes, the outer sides of the threaded rods are connected with internal threaded fixing sleeves, and the bottom ends of the internal threaded fixing sleeves are connected with anti-slip rings, the bottom ends of the anti-slip rings are fitted with the top of the box cover, and the outer sides of the internal threaded fixing sleeves are provided with anti-slip patterns.

[0012] Preferably, a sealing sleeve is connected to the bottom end of the box cover, and the outer side of the sealing sleeve fits with the inner side of the mounting groove, and the outer wall of the gear box body of the three-screw extruder fits with the inner wall of the box cover.

[0013] Preferably, one side of the filter screen frame is connected to a card block, the inside of the three-screw extruder gear box is provided with a card slot, and the card slot is connected to the card block, one side of the filter screen frame is connected to a sealing block, the inside of the three-screw extruder gear box is provided with a sealing groove, and the sealing groove is connected to the sealing block.

[0014] Preferably, the size of the card slot matches the size of the card block, the size of the sealing block matches the size of the sealing slot, and the cross-section of the sealing block is frame-shaped.

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

[0016] The sealing block and the sealing groove are connected to improve the sealing performance of the filter frame after being connected to the gear box of the three-screw extruder. With the elastic effect of the spring, the limit plate quickly limits the position of the filter frame, thereby improving the stability and sealing performance of the filter frame after being connected to the gear box of the three-screw extruder. It is convenient to collect impurities in the lubricating oil, avoid impurities mixing with the lubricating oil and affecting the service life of the gear box of the three-screw extruder as a whole, and improve the overall practicality of the gear box of the three-screw extruder.

[0017] The threaded connection between the internal thread fixing sleeve and the threaded rod facilitates replacement of local parts of the three-screw extruder gear box as a whole, thereby extending the overall service life. The outer side of the three-screw extruder gear box fits with the inner wall of the box cover, and the outer wall of the sealing sleeve fits with the inner side of the mounting groove, thereby improving the overall sealing after the box cover and the three-screw extruder gear box are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the front section structure of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting plate of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the box cover of the utility model in a front section.

[0023] Explanation of the reference numerals in the figure: 1. Box cover; 2. Threaded rod; 3. Internal thread fixing sleeve; 4. Three-screw extruder gear box; 5. Driven gear; 6. Anti-skid ring; 7. Guide plate; 8. Slot; 9. Block; 10. Filter frame; 11. Mounting slot; 12. Limit seat; 13. Spring; 14. Support rod; 15. Sealing block; 16. Sealing slot; 17. Moving plate; 18. Driving gear; 19. Sealing sleeve; 20. Through hole; 21. Anti-skid pattern; 22. Limit plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0026] Combination Figure 1 , Figure 2 and Figure 4 The utility model discloses a three-screw extruder gearbox structure for blended modified materials, which is provided with a three-screw extruder gearbox body 4, a box cover 1 is connected to the top of the three-screw extruder gearbox body 4, and a mounting groove 11 is arranged inside the three-screw extruder gearbox body 4; it includes: a driving tooth 18, which is connected inside the mounting groove 11, and a driven tooth 5 is evenly connected inside the mounting groove 11, and the driven teeth 5 are meshingly connected, the driving tooth 18 is meshingly connected with the driven tooth 5, and a guide plate 7 is connected inside the mounting groove 11, and the guide plate 7 is located below the driving tooth 18, and a filter frame 10 is connected inside the mounting groove 11, and a limiting mechanism is evenly arranged on one side of the three-screw extruder gearbox body 4, and the stability of the filter frame 10 after being connected to the three-screw extruder gearbox body 4 is improved by the limiting mechanism; a fixing mechanism is arranged at the top of the three-screw extruder gearbox body 4, and a stable connection between the box cover 1 and the three-screw extruder gearbox body 4 is achieved by the fixing mechanism.

[0027] The utility model is further described below in conjunction with embodiments.

[0028] Embodiment 1:

[0029] Combination Figure 1 , Figure 2 and Figure 3The limiting mechanism includes a limiting seat 12 connected to one side of the three-screw extruder gear box 4, the inside of the limiting seat 12 is evenly connected with a spring 13, and one end of the spring 13 is connected to a support rod 14, the support rod 14 runs through the inside of the limiting seat 12, one end of the support rod 14 is connected to a limiting plate 22, and the limiting plate 22 is in contact with one side of the filter frame 10, and one side of the support rod 14 is connected to a movable plate 17; two groups of support rods 14 are provided, each group of support rods 14 is provided with three, and the support rods 14 are about the filter The central axis of the frame 10 is symmetrically arranged; a card block 9 is connected to one side of the filter frame 10, a card slot 8 is arranged inside the gear box body 4 of the three-screw extruder, and the card slot 8 is connected to the card block 9; a sealing block 15 is connected to one side of the filter frame 10, a sealing groove 16 is arranged inside the gear box body 4 of the three-screw extruder, and the sealing groove 16 is connected to the sealing block 15; the size of the card slot 8 matches the size of the card block 9, the size of the sealing block 15 matches the size of the sealing groove 16, and the cross-section of the sealing block 15 is arranged in a frame shape.

[0030] In this embodiment, when the meshing connection between the driven teeth 5 and the driving teeth 18 causes a lot of impurities to be mixed in the internal lubricating oil, the guide plate 7 is used to swing the driven teeth 5 and the driving teeth 18 out during movement to guide the lubricating oil, and the impurities in the lubricating fluid are filtered through the filter frame 10. During the regular cleaning process of the staff, the movable plate 17 is moved in the opposite direction so that one side of the limit plate 22 is separated from the filter frame 10, which is convenient for the filter frame 10 to be completely moved out of the interior of the three-screw extruder gear box 4, thereby facilitating the staff to centrally clean the impurities inside the three-screw extruder gear box 4, avoiding oil leakage caused by excessive disassembly times due to poor sealing of the equipment, and improving the stability of the inside of the three-screw extruder gear box 4.

[0031] Embodiment 2:

[0032] Combination Figure 1 , Figure 2 and Figure 4 The fixing mechanism includes a threaded rod 2 connected to the top of the three-screw extruder gear box 4, and the inside of the box cover 1 is evenly provided with through holes 20. The threaded rods 2 all penetrate the inside of the through holes 20. The outer sides of the threaded rods 2 are connected with internal threaded fixing sleeves 3, and the bottom ends of the internal threaded fixing sleeves 3 are connected with anti-slip rings 6. The bottom ends of the anti-slip rings 6 are fitted with the top of the box cover 1, and the outer sides of the internal threaded fixing sleeves 3 are provided with anti-slip patterns 21; the bottom end of the box cover 1 is connected with a sealing sleeve 19, and the outer side of the sealing sleeve 19 is fitted with the inner side of the mounting groove 11, and the outer wall of the three-screw extruder gear box 4 is fitted with the inner wall of the box cover 1.

[0033] In this embodiment, when it is necessary to add lubricating oil to the driven gear 5 and the driving gear 18 or to perform maintenance, the internal threaded fixing sleeve 3 is rotated so that the internal threaded fixing sleeve 3 and the anti-slip ring 6 are separated from the threaded rod 2, so that the box cover 1 and the three-screw extruder gear box body 4 can be separated as a whole. The splicing installation method can replace local parts and extend the service life of the whole. The outer side of the three-screw extruder gear box body 4 is fitted with the inner wall of the box cover 1, and the outer wall of the sealing sleeve 19 is fitted with the inner side of the mounting groove 11, thereby improving the overall sealing after the box cover 1 is connected to the three-screw extruder gear box body 4.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-screw extruder gearbox structure for blending and modifying materials, comprising a three-screw extruder gearbox body (4), a top end of the three-screw extruder gearbox body (4) being connected to a box cover (1), and an interior of the three-screw extruder gearbox body (4) being provided with a mounting groove (11); It is characterized in that include: The driving teeth (18) are connected to the inside of the installation groove (11); the inside of the installation groove (11) is evenly connected with the driven teeth (5), and the driven teeth (5) are meshingly connected with each other; the driving teeth (18) are meshingly connected with the driven teeth (5); the inside of the installation groove (11) is connected with the guide plate (7), and the guide plate (7) is located below the driving teeth (18); the inside of the installation groove (11) is connected with the filter screen frame (10); a limiting mechanism is evenly arranged on one side of the three-screw extruder gear box (4); and the stability of the filter screen frame (10) after being connected to the three-screw extruder gear box (4) is improved by the limiting mechanism; The fixing mechanism is arranged at the top end of the three-screw extruder gear box (4), and a stable connection between the box cover (1) and the three-screw extruder gear box (4) is achieved through the fixing mechanism.

2. The gearbox structure of a three-screw extruder for blended and modified materials according to claim 1, characterized in that: The limiting mechanism comprises a limiting seat (12) connected to one side of the gear box (4) of the three-screw extruder, the inside of the limiting seat (12) is uniformly connected with a spring (13), and one end of the spring (13) is connected to a support rod (14), the support rod (14) passes through the inside of the limiting seat (12), one end of the support rod (14) is connected to a limiting plate (22), and the limiting plate (22) is in contact with one side of the filter screen frame (10), and one side of the support rod (14) is connected to a movable plate (17).

3. The gearbox structure of a three-screw extruder for blended and modified materials according to claim 2, characterized in that: The support rods (14) are provided in two groups, each group of the support rods (14) is provided with three support rods, and the support rods (14) are symmetrically arranged about the central axis of the filter frame (10).

4. The gearbox structure of a three-screw extruder for blended and modified materials according to claim 1, characterized in that: The fixing mechanism comprises a threaded rod (2) connected to the top of the gear box (4) of the three-screw extruder, the interior of the box cover (1) is evenly provided with through holes (20), the threaded rods (2) all penetrate the interior of the through holes (20), the outer sides of the threaded rods (2) are connected to internal threaded fixing sleeves (3), and the bottom ends of the internal threaded fixing sleeves (3) are connected to anti-skid rings (6), the bottom ends of the anti-skid rings (6) are in contact with the top of the box cover (1), and the outer sides of the internal threaded fixing sleeves (3) are provided with anti-skid patterns (21).

5. The gearbox structure of a three-screw extruder for blended and modified materials according to claim 1, characterized in that: The bottom end of the box cover (1) is connected to a sealing sleeve (19), and the outer side of the sealing sleeve (19) fits with the inner side of the mounting groove (11), and the outer wall of the three-screw extruder gear box (4) fits with the inner wall of the box cover (1).

6. The gearbox structure of a three-screw extruder for blended and modified materials according to claim 1, characterized in that: One side of the filter screen frame (10) is connected to a clamping block (9), the interior of the three-screw extruder gear box (4) is provided with a clamping groove (8), and the clamping groove (8) is connected to the clamping block (9), one side of the filter screen frame (10) is connected to a sealing block (15), the interior of the three-screw extruder gear box (4) is provided with a sealing groove (16), and the sealing groove (16) is connected to the sealing block (15).

7. The gearbox structure of a three-screw extruder for blended and modified materials according to claim 6, characterized in that: The size of the clamping groove (8) matches the size of the clamping block (9), the size of the sealing block (15) matches the size of the sealing groove (16), and the cross-section of the sealing block (15) is frame-shaped.

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