A shock-absorbing and noise-reducing gearbox for a screw extruder

Abstract

The utility model relates to gear box technical field, concretely is a kind of gear box for screw extruder, including frame, gear group is equipped in the frame inside, the screw extruder body is fixed in the frame bottom, the connecting port is set up in the both sides of frame, the top of frame is equipped with cover, the both sides of cover slide have a plurality of baffle, the brush hair is fixed in the baffle side, the both sides of cover are all set up and have heat dissipation hole;Beneficial effect is: by being equipped with the heat dissipation hole and connector, when gear group works, hot gas will be outwardly dissipated from heat dissipation hole, start blower to clean inside, it is favorable when cleaning frame, cover is not needed to be opened to clean, and the brush installed on baffle, filter screen can be cleaned when moving baffle, then not need to clean by artificial, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of gearboxes, specifically a shock-absorbing and noise-reducing gearbox for screw extruders. Background Technology

[0002] The gearbox in a screw extruder consists of a housing, gears, connectors, and a cover. The housing has precisely designed bearing mounting positions to stably secure the gear set, preventing additional vibrations caused by gear displacement during operation. It absorbs some of the vibration energy generated by gear transmission, reducing vibration transmission to the outside and structurally weakening the noise source. Gears are the core of power conversion; through meshing, they transform the high-speed, low-torque motor into the low-speed, high-torque required by the screw. Precise matching between gears, shafts, and bearings prevents vibration misalignment due to excessive clearance, further reducing operating noise and ensuring smooth power transmission to the connectors. The input connector connects to the extruder's drive motor, and the output connector connects to the screw via a coupling. When transmitting torque, vibration is prevented from being directly transmitted to internal or external components of the gearbox through the connectors, while ensuring coaxiality of power transmission and reducing additional vibration noise caused by eccentricity. The cover is tightly closed to the housing with bolts. The inside of the cover is often lined with sound-absorbing cotton, damping sheets, and other noise-reducing materials to absorb noise radiated upwards during gear operation, while also enhancing the overall rigidity of the housing and helping to suppress vibration.

[0003] In the prior art, when the internal parts of the gearbox need to be cleaned, the entire frame of the gearbox needs to be opened. With the development of the market, a cover plate is installed on the top of the gearbox, which can be opened to clean the inside.

[0004] However, the above-mentioned method of cleaning the inside of the frame by opening the cover plate requires opening the already sealed cover plate and then cleaning the internal parts with a brush tool. When the gearbox is working, the friction between the gear sets will generate a lot of heat, which will cause damage to the internal parts. Moreover, cleaning the heat dissipation holes requires manual cleaning with a brush, which is inefficient. Therefore, it is necessary to design a vibration-damping and noise-reducing gearbox for screw extruders. Utility Model Content

[0005] The purpose of this invention is to provide a shock-absorbing and noise-reducing gearbox for screw extruders to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing and noise-reducing gearbox for a screw extruder, comprising a frame, a gear set installed inside the frame, a screw extruder body fixed to the bottom of the frame, connection ports on both sides of the frame, a cover plate on the top of the frame, multiple baffles sliding on both sides of the cover plate, bristles fixed to one side of the baffles, heat dissipation holes on both sides of the cover plate, and connectors inserted into both sides of the cover plate.

[0007] Preferably, the cover plate has sliding grooves on both sides, the sliding grooves are cross-shaped square grooves, the baffle is inserted into the sliding grooves, the heat dissipation hole penetrates the side plate on the cover plate, and a filter screen is fixedly installed inside the heat dissipation hole.

[0008] Preferably, the baffle is a T-shaped square plate, the surface of the slide groove is equipped with a rubber pad, the rubber pad is located between the baffle and the slide groove, the surface of the baffle has a pull opening, the bristles are located between the baffle and the cover plate, and the pull opening is located on the side of the baffle opposite to the bristles.

[0009] Preferably, the cover plate has air holes on both sides, the connector is inserted into the air holes, the connector is in the shape of an "I" tube, the surface of the connector is fitted with an anti-slip pad, the anti-slip pad is located between the connector and the cover plate, and a connection hole is opened on one side plate of the connector.

[0010] Preferably, holes are provided on the top surface of the frame and the bottom surface of the cover plate, and the holes on the top surface of the frame correspond to the holes on the bottom surface of the cover plate. A screw is inserted into the hole, and a nut is fitted on the surface of the screw.

[0011] Preferably, a blower is installed on the connector on one side of the cover plate through a connection hole. The blower blows air into the frame, thereby blowing away the dust on the surface of the internal gear set, and finally blowing it out from the connector on the other side of the cover plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Equipped with heat dissipation holes and connectors, the gear set generates a large amount of heat during operation. This heat dissipates outward through the heat dissipation holes, pulling the connector outward. The blower's output end is then bolted to one end of the connector. Starting the blower cleans the interior. This eliminates the need to open the cover plate when cleaning the frame. Furthermore, the brushes installed on the baffle plate clean the filter screen while the baffle plate is being moved, eliminating the need for manual cleaning and improving work efficiency. Attached Figure Description Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the combined frame and cover plate structure; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 2 Diagrams from different angles; Figure 5 for Figure 4 Sectional view of BB; Figure 6 for Figure 5 A magnified schematic diagram of the structure of A in the middle.

[0013] In the diagram: 1. Frame; 2. Gear set; 3. Screw extruder body; 4. Connecting port; 5. Cover plate; 6. Baffle; 7. Brush; 8. Filter screen; 9. Connector; 10. Slide groove; 11. Heat dissipation hole; 12. Rubber pad; 13. Pulling end; 14. Air hole; 15. Anti-slip pad; 16. Hole; 17. Screw; 18. Nut. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Example 1 Please see Figures 1-6 This utility model provides a technical solution: a shock-absorbing and noise-reducing gearbox for a screw extruder, including a frame 1, a gear set 2 inside the frame 1, a screw extruder body 3 fixed at the bottom of the frame 1, connection ports 4 on both sides of the frame 1, a cover plate 5 on the top of the frame 1, holes 16 on the top surface of the frame 1 and the bottom surface of the cover plate 5, the holes 16 on the top surface of the frame 1 and the holes 16 on the bottom surface of the cover plate 5 are corresponding, a screw 17 is inserted into the hole, and a nut 18 is fitted on the surface of the screw 17. The holes 16 on the cover plate 5 are aligned with the holes on the frame 1, the screw 17 is inserted into the hole, and the nut 18 is tightened until the frame 1 and the cover plate 5 are sealed.

[0016] Example 2 Based on Embodiment 1, multiple baffles 6 slide on both sides of the cover plate 5. Brush bristles 7 are fixed on one side of the baffle 6. Heat dissipation holes 11 are provided on both sides of the cover plate 5. Sliding grooves 10 are provided on both sides of the cover plate 5. The sliding grooves 10 are cross-shaped square grooves. The baffles 6 are inserted into the sliding grooves 10. The heat dissipation holes 11 penetrate the side plates on the cover plate 5. The baffles 6 are T-shaped square plates. A rubber pad 12 is installed on the surface of the sliding groove 10. The rubber pad 12 is located between the baffles 6 and the sliding groove 10. When the baffles 6 are slid, the baffles 6 will slide on the rubber pad 12. At the same time, the brush bristles 7 at the bottom will clean the filter screen 8 until the two baffles 6 on the same side come into contact, so that the heat dissipation holes 11 can be completely exposed. When the gear set 2 is working, a large amount of heat will be emitted from inside. The heat will eventually dissipate outward from the heat dissipation holes 11.

[0017] Example 3 Based on Embodiment 2, a pull opening 13 is provided on the surface of the baffle 6, and the bristles 7 are located between the baffle 6 and the cover plate 5. The pull opening 13 is located on the side opposite to the bristles 7 on the baffle 6. A filter screen 8 is fixedly installed inside the heat dissipation hole 11. Connectors 9 are inserted into both sides of the cover plate 5. Air holes 14 are provided on both sides of the cover plate 5. The connectors 9 are inserted into the air holes 14. The connectors 9 are in the shape of an "I" tube. When it is necessary to clean the inside of the frame 1, the baffle 6 is first slid to both sides through the pull opening 13 until the connectors 9 are exposed on the surface.

[0018] Example 4 Based on Embodiment 3, an anti-slip pad 15 is fixedly fitted onto the surface of connector 9. The anti-slip pad 15 is located between connector 9 and cover plate 5. A connection hole is opened on one side plate of connector 9. A blower is installed on connector 9 on one side of cover plate 5 through the connection hole. When cleaning the inside of frame 1 without opening cover plate 5, connector 9 is pulled outward, and the output end of blower is installed on one end of connector 9 with bolts. Then, blower is started, which blows air inward, thereby achieving the effect of cleaning the inside of frame 1. Finally, the air is blown out from connector 9 on the other side of cover plate 5. When cleaning the inside of frame 1 is required, blower is installed again.

[0019] In use, first align the hole 16 on the cover plate 5 with the hole on the frame 1, insert the screw 17 into the hole, and then tighten the nut 18 until the frame 1 and the cover plate 5 are sealed. Then slide the baffle 6, which will slide on the rubber pad 12. At the same time, the brush 7 at the bottom will clean the filter screen 8 until the two baffles 6 on the same side come into contact, which can completely expose the heat dissipation hole 11. When the gear set 2 is working, a large amount of heat will be emitted from inside, and the heat will eventually dissipate outward from the heat dissipation hole 11. When it is necessary to clean the inside of the frame 1, first slide the baffle 6 to both sides through the pull hole 13 until the connector 9 is exposed on the surface. Then pull the connector 9 outward and install the output end of the blower on one end of the connector 9 with a bolt. Then start the blower, which will blow air inward, thereby achieving the effect of cleaning the inside of the frame 1. Finally, the air will be blown out from the connector 9 on the other side of the cover plate 5.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration-damping and noise-reducing gearbox for a screw extruder, comprising a frame (1), a gear set (2) installed inside the frame (1), a screw extruder body (3) fixed to the bottom of the frame (1), connection ports (4) on both sides of the frame (1), and a cover plate (5) installed on the top of the frame (1), characterized in that: Multiple baffles (6) slide on both sides of the cover plate (5), bristles (7) are fixed on one side of the baffle (6), heat dissipation holes (11) are opened on both sides of the cover plate (5), and connectors (9) are inserted into both sides of the cover plate (5).

2. The vibration-damping and noise-reducing gearbox for a screw extruder according to claim 1, characterized in that: The cover plate (5) has grooves (10) on both sides. The grooves (10) are in the shape of a cross. The baffle (6) is inserted into the groove (10). The heat dissipation hole (11) penetrates the side plate on the cover plate (5). The heat dissipation hole (11) is fixedly installed with a filter screen (8).

3. A vibration-damping and noise-reducing gearbox for a screw extruder according to claim 2, characterized in that: The baffle (6) is a "T" shaped square plate. The surface of the slide (10) is equipped with a rubber pad (12). The rubber pad (12) is located between the baffle (6) and the slide (10). The surface of the baffle (6) is provided with a pull opening (13). The bristles (7) are located between the baffle (6) and the cover plate (5). The pull opening (13) is located on the side opposite to the bristles (7) on the baffle (6).

4. A vibration-damping and noise-reducing gearbox for a screw extruder according to claim 1, characterized in that: The cover plate (5) has air holes (14) on both sides. The connector (9) is inserted into the air holes (14). The connector (9) is an "I" shaped round tube. An anti-slip pad (15) is fixed on the surface of the connector (9). The anti-slip pad (15) is located between the connector (9) and the cover plate (5). A connection hole is opened on one side plate of the connector (9).

5. A vibration-damping and noise-reducing gearbox for a screw extruder according to claim 1, characterized in that: Holes (16) are provided on the top surface of the frame (1) and the bottom surface of the cover plate (5). The holes (16) on the top surface of the frame (1) correspond to the holes (16) on the bottom surface of the cover plate (5). A screw (17) is inserted into the hole, and a nut (18) is fitted on the surface of the screw (17).

6. A vibration-damping and noise-reducing gearbox for a screw extruder according to claim 1, characterized in that: The connector (9) on one side of the cover plate (5) is equipped with a blower through the connection hole. The blower blows air into the frame (1), thereby blowing away the dust on the surface of the internal gear set (2) and finally blowing it out from the connector (9) on the other side of the cover plate (5).

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