Gearbox protection mechanism of plastic extruder
By designing a protective cover, cooling fan, filter, and automatic cleaning mechanism on the gearbox of a plastic extruder, the problem of dust and impurities entering the gearbox in harsh environments is solved, achieving good heat dissipation and ventilation, extending the service life of the gears, and improving operational convenience.
Patent Information
- Application Number
- CN202422311441.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Existing plastic extruder gearboxes are prone to dust and impurities entering in harsh environments, leading to gear wear, reduced precision, and shorter service life.
A gearbox protection mechanism is designed, which includes a protective cover, a cooling fan, a filter, and an automatic cleaning mechanism. The protective cover provides comprehensive protection, the cooling fan improves ventilation, the filter prevents impurities from entering, and the automatic cleaning mechanism prevents the filter from clogging, thus ensuring good heat dissipation and ventilation conditions.
It effectively prevents dust and impurities from entering the gearbox, extends gear life, improves operational convenience and equipment controllability, and ensures good heat dissipation.
Smart Images

Figure CN223536897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic extruder technology, specifically to a protective mechanism for a plastic extruder gearbox. Background Technology
[0002] In the field of plastics processing, plastic extruders play a crucial role. As one of the key components of a plastic extruder, the gearbox's operational stability and reliability directly affect the overall performance of the extruder. A gearbox protection mechanism for plastic extruders is primarily used to protect the gearbox, ensuring its normal operation and extending its service life.
[0003] Based on the above, the inventors have discovered the following problems: In actual use, plastic extruder gearboxes are often used in harsh working environments, such as high temperatures and dust. In such environments, dust and impurities can easily enter the gearbox, accelerating gear wear and reducing gear precision and service life.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a protective mechanism for the gearbox of a plastic extruder, in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this utility model is to provide a protective mechanism for the gearbox of a plastic extruder, in order to solve the problem mentioned in the background art that, in actual use, plastic extruders usually operate in harsh working environments, such as high temperatures and dust, dust and impurities can easily enter the gearbox, accelerating gear wear and reducing gear precision and service life.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A protective mechanism for a plastic extruder gearbox includes a protective cover. Connecting seats are installed at the bottom of the first and third sides of the protective cover. Air outlets are provided at the bottom of the second and fourth sides of the protective cover. A cooling fan is installed inside each air outlet. An air inlet pipe is installed at the top of the first side of the protective cover. A filter screen is installed at one end of the inner side of the air inlet pipe. A cleaning mechanism for cleaning the filter screen is installed at the top of the air inlet pipe.
[0008] Furthermore, the cleaning mechanism includes a threaded rod, with retaining seats rotatably connected to both ends of the threaded rod. The bottom end of the retaining seat is fixedly connected to the top end of the air inlet pipe. A movable block is fitted onto the outer side of the threaded rod, and a crossbar is mounted on the top end of the movable block. A cleaning rod is mounted on one side of the bottom end of the crossbar, and a cleaning brush is mounted on one side of the cleaning rod. One end of the cleaning brush contacts one side of the filter screen. A motor is mounted on one side of one of the retaining seats, and the output end of the motor is connected to one end of the threaded rod. The beneficial effect of adopting the above-mentioned further solution is that, through the cooperation of the threaded rod, retaining seat, motor, movable block, crossbar, cleaning rod, and cleaning brush, the filter screen can be automatically cleaned, preventing filter screen blockage, ensuring smooth air intake, and thus continuously providing good heat dissipation and ventilation conditions for the gearbox.
[0009] Furthermore, the bottom end of the movable block and the top end of the air inlet pipe are slidably connected.
[0010] Furthermore, the protective cover has openings on both the first and third sides, a sealing plate on the inner side of the opening, a plug rod on both sides of the sealing plate, and slots on both sides of the inner side of the opening, with the outer side of the plug rod and the inner side of the slot inserted into each other.
[0011] The beneficial effects of adopting the above-mentioned further solution are that the sealing plate provided on the inner side of the opening improves the installation sealing of the protective cover, and the insertion of the outer side of the plug rod and the inner side of the slot facilitates the disassembly of the protective cover, thereby facilitating the maintenance and repair of the gearbox and improving the convenience of operation.
[0012] Furthermore, both the inner top of the opening and the top of the sealing plate are provided with transmission ports.
[0013] The advantage of adopting the above-mentioned further solution is that a transmission port is provided on both the inner top of the opening and the top of the sealing plate, which facilitates the connection between the internal gearbox and the external transmission shaft.
[0014] Furthermore, the top of the connector has a mounting hole.
[0015] The advantage of adopting the above-mentioned further solution is that the installation hole at the top of the connector facilitates the installation and fixation of the product.
[0016] Furthermore, a control panel is installed on the second side of the protective cover, and the control panel is electrically connected to the motor and the cooling fan via wires.
[0017] The advantage of adopting the above-mentioned further solution is that the control panel installed on the second side of the protective cover makes the equipment controllable and increases the ease of use of the product.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This protective mechanism for the gearbox of a plastic extruder provides comprehensive protection for the gearbox through the setting of the protective cover. A cooling fan is installed inside the air outlet to improve the ventilation of the protective cover. A filter screen is installed at one end of the inner side of the air inlet pipe to prevent dust and other impurities from entering, ensuring that the gearbox operates in a good environment. Through the cooperation of the threaded rod, retaining seat, motor, moving block, crossbar, cleaning rod, and cleaning brush, the filter screen can be automatically cleaned to prevent clogging and ensure smooth air intake, thereby continuously providing good heat dissipation and ventilation conditions for the gearbox. A sealing plate is provided on the side to improve the sealing performance of the protective cover. The protective cover is easily disassembled by inserting the outer side of the plug rod and the inner side of the slot, which facilitates the maintenance and repair of the gearbox and improves the convenience of operation. Transmission ports are provided on the top of the inner side of the opening and the top of the sealing plate to facilitate the connection between the internal gearbox and the external drive shaft. The top of the connecting seat has a mounting hole to facilitate the installation and fixing of the product. A control panel is installed on the second side of the protective cover to make the equipment controllable and increase the convenience of product use. This utility model can effectively protect and dustproof the gearbox of the plastic extruder, and has good heat dissipation effect, which has high practical value. Attached Figure Description
[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model;
[0020] Figure 2 This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model;
[0021] Figure 3 This is the third perspective structural diagram of the present utility model embodiment;
[0022] Figure 4 This is one of the disassembled three-dimensional structural diagrams disclosed in the embodiments of this utility model;
[0023] Figure 5 This is the second disassembled three-dimensional structural diagram disclosed in the embodiment of this utility model.
[0024] In the diagram: 100, Protective cover; 10001, Air outlet; 10002, Opening; 10003, Slot; 10004, Sealing plate; 10005, Insert rod; 10006, Transmission port; 10101, Mounting hole; 101, Connecting seat; 10101, Mounting hole; 102, Cooling fan; 103, Air inlet pipe; 104, Filter screen; 105, Cleaning mechanism; 10501, Threaded rod; 10502, Retaining seat; 10503, Motor; 10504, Moving block; 10505, Crossbar; 10506, Cleaning rod; 10507, Cleaning brush; 106, Control panel. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-5 This utility model provides a technical solution: a protective mechanism for a plastic extruder gearbox, including a protective cover 100. Connecting seats 101 are installed at the bottom of the first and third sides of the protective cover 100. Air outlets 10001 are opened at the bottom of the second and fourth sides of the protective cover 100. A cooling fan 102 is installed inside the air outlet 10001. An air inlet pipe 103 is installed at the top of the first side of the protective cover 100. A filter screen 104 is installed at one end of the inner side of the air inlet pipe 103. A cleaning mechanism 105 for cleaning the filter screen 104 is installed at the top of the air inlet pipe 103. The protective cover 100 provides comprehensive protection for the gearbox. The cooling fan 102 installed inside the air outlet 10001 improves the ventilation of the protective cover 100. The filter screen 104 installed at one end of the inner side of the air inlet pipe 103 prevents dust and other impurities from entering, ensuring the gearbox operates in a good environment.
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-5The cleaning mechanism 105 includes a threaded rod 10501, with retaining seats 10502 rotatably connected to both ends of the threaded rod 10501. The bottom end of the retaining seat 10502 is fixedly connected to the top end of the air inlet pipe 103. A movable block 10504 is fitted on the outer side of the threaded rod 10501. A crossbar 10505 is installed on the top end of the movable block 10504. A cleaning rod 10506 is installed on one side of the bottom end of the crossbar 10505. A cleaning brush 10507 is installed on one side of the cleaning rod 10506. One end of the cleaning brush 10507 contacts one side of the filter screen 104. One of the retaining seats... A motor 10503 is installed on one side of the seat 10502. The output end of the motor 10503 is connected to one end of the threaded rod 10501. The bottom end of the movable block 10504 is slidably connected to the top end of the air inlet pipe 103. Through the cooperation of the threaded rod 10501, the seat 10502, the motor 10503, the movable block 10504, the crossbar 10505, the cleaning rod 10506, and the cleaning brush 10507, the filter screen 104 can be automatically cleaned to prevent the filter screen 104 from clogging, ensure smooth air intake, and thus continuously provide good heat dissipation and ventilation conditions for the gearbox.
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-5The protective cover 100 has openings 10002 on its first and third sides. A sealing plate 10004 is provided inside the opening 10002. Insert rods 10005 are installed on both sides of the sealing plate 10004. Slots 10003 are provided on both sides inside the opening 10002. The outer side of the insert rod 10005 is inserted into the inner side of the slot 10003. A transmission port 10006 is provided at the top of the inner side of the opening 10002 and the top of the sealing plate 10004. A mounting hole 10101 is provided at the top of the connecting seat 101. A control panel 106 is installed on the second side of the protective cover 100. The control panel 106 is electrically connected to the motor 10503 and the cooling fan 102 via wires. The protective cover 100 is sealed by a sealing plate 10004 on the inner side of the opening 10002 to improve the sealing performance of the protective cover 100. The protective cover 100 is easily disassembled by inserting the outer side of the plug rod 10005 and the inner side of the slot 10003, which facilitates the maintenance and repair of the gearbox and improves the convenience of operation. The transmission port 10006 is opened on the top of the inner side of the opening 10002 and the top of the sealing plate 10004 to facilitate the connection between the internal gearbox and the external transmission shaft. The top of the connecting seat 101 is provided with a mounting hole 10101 to facilitate the installation and fixing of the product. The control panel 106 is installed on the second side of the protective cover 100 to realize the controllability of the equipment and increase the convenience of product use.
[0031] Specifically, the working principle of this plastic extruder gearbox protection mechanism is as follows: During use, the protective cover 100 provides comprehensive protection for the gearbox. A cooling fan 102 is installed inside the air outlet 10001 to improve the ventilation of the protective cover 100. A filter screen 104 is installed at one end of the inner side of the air inlet pipe 103 to prevent dust and other impurities from entering, ensuring the gearbox operates in a good environment. Through the cooperation of the threaded rod 10501, retaining seat 10502, motor 10503, movable block 10504, crossbar 10505, cleaning rod 10506, and cleaning brush 10507, the filter screen 104 is automatically cleaned, preventing clogging and ensuring smooth airflow. This continuously provides good heat dissipation and ventilation for the gearbox. The inner side of the 002 is provided with a sealing plate 10004 to improve the sealing performance of the protective cover 100. The protective cover 100 is easily disassembled by inserting the outer side of the plug rod 10005 and the inner side of the slot 10003, thereby facilitating the maintenance and repair of the gearbox and improving the convenience of operation. The top of the inner side of the opening 10002 and the top of the sealing plate 10004 are both provided with transmission ports 10006 to facilitate the connection between the internal gearbox and the external transmission shaft. The top of the connecting seat 101 is provided with a mounting hole 10101 to facilitate the installation and fixing of the product. A control panel 106 is installed on the second side of the protective cover 100 to realize the controllability of the equipment and increase the convenience of product use. This utility model can effectively protect and prevent dust from the gearbox of the plastic extruder, and has good heat dissipation effect, and has high practical value.
Claims
1. A protective mechanism for a gearbox of a plastic extruder, characterized in that, The device includes a protective cover (100), with connecting seats (101) installed at the bottom of the first and third sides of the protective cover (100), and air outlets (10001) opened at the bottom of the second and fourth sides of the protective cover (10001). A cooling fan (102) is installed inside the air outlet (10001), and an air inlet pipe (103) is installed at the top of the first side of the protective cover (100). A filter screen (104) is installed at one end of the inner side of the air inlet pipe (103), and a cleaning mechanism (105) for cleaning the filter screen (104) is installed at the top of the air inlet pipe (103).
2. The gearbox protection mechanism for a plastic extruder according to claim 1, characterized in that, The cleaning mechanism (105) includes a threaded rod (10501), both ends of which are rotatably connected to retaining seats (10502). The bottom end of the retaining seat (10502) is fixedly connected to the top end of the air inlet pipe (103). A movable block (10504) is fitted on the outside of the threaded rod (10501). A crossbar (10505) is installed on the top end of the movable block (10504). A cleaning rod (10506) is installed on one side of the bottom end of the crossbar (10505). A cleaning brush (10507) is installed on one side of the cleaning rod (10506). One end of the cleaning brush (10507) is in contact with one side of the filter screen (104). A motor (10503) is installed on one side of one of the retaining seats (10502). The output end of the motor (10503) is connected to one end of the threaded rod (10501).
3. The gearbox protection mechanism for a plastic extruder according to claim 2, characterized in that, The bottom end of the movable block (10504) and the top end of the air inlet pipe (103) are slidably connected.
4. The gearbox protection mechanism for a plastic extruder according to claim 1, characterized in that, The protective cover (100) has openings (10002) on its first and third sides. A sealing plate (10004) is provided inside the opening (10002). Insert rods (10005) are installed on both sides of the sealing plate (10004). Slots (10003) are provided on both sides inside the opening (10002). The outer side of the insert rod (10005) is inserted into the inner side of the slot (10003).
5. The gearbox protection mechanism for a plastic extruder according to claim 4, characterized in that, The top inner side of the opening (10002) and the top of the sealing plate (10004) are both provided with transmission ports (10006).
6. The gearbox protection mechanism for a plastic extruder according to claim 1, characterized in that, The top of the connector (101) is provided with a mounting hole (10101).
7. The gearbox protection mechanism for a plastic extruder according to claim 1, characterized in that, A control panel (106) is installed on the second side of the protective cover (100), and the control panel (106) is electrically connected to the motor (10503) and the cooling fan (102) respectively via wires.