Novel gearbox of double-screw extruder

Abstract

The utility model relates to the technical field of extruder accessories, and discloses a novel double-screw extruder gearbox which comprises a gearbox body, a top cover is fixedly connected to the top of the gearbox body, gear shafts are rotationally connected to the periphery of the inner wall of the gearbox body, and a motor is fixedly connected to the right side of the inner wall of the top cover. A rotating rod is fixedly connected to the output end of the motor, first bevel gears are fixedly connected to the left side and the right side of the outer wall of the rotating rod correspondingly, second bevel gears are rotationally connected to the left side and the right side of the top of the gearbox correspondingly, and the first bevel gears are connected with the second bevel gears in an engaged mode; the bottom of the second bevel gear penetrates through the gearbox and is fixedly connected with fan blades. According to the gear shaft lubricating device, the motor is started to drive the fan blades to rotate, the oil pump is started to conduct spraying, the gear shaft can be cooled while being lubricated, the movable cover is moved to drive the telescopic plate to rotate so as to push the inserting plate to move, and the device is rapidly disassembled, assembled and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder accessories, in particular to a novel twin-screw extruder gear box. Background Art

[0002] The twin-screw extruder is an important industrial equipment, widely used in the fields of plastic processing and chemical industry. It realizes the process of conveying, compressing, mixing and plasticizing materials through two intermeshing screws rotating in the barrel. In order to facilitate the drive and operation of the screw rotation, a new type of twin-screw extruder gearbox is needed.

[0003] After searching, the Chinese patent announcement number is: CN221423825U, which discloses a new twin-screw extruder gearbox, including a box body, an input shaft is rotatably connected to the box body, a driving gear is fixed on the input shaft, two output shafts are symmetrically rotatably connected to the box body, and both output shafts are fixedly connected to a driven gear meshing with the driving gear, a guide frame is fixedly connected to the bottom wall of the box body, a filter box is provided in the guide frame, one end of the filter box is fixedly connected to a mounting plate, and the mounting plate is fixedly connected to the box body by a hexagon socket bolt, and a liquid storage is fixedly connected to one side wall of the box body. The application realizes the filtration of the circulating lubricating oil by setting up a guide frame, a filter box, a mounting plate, a liquid storage tank and a connecting pipe, so that the sprayed lubricating oil does not contain residues, and solves the problem of the existing technology that the lubricating oil contains residues and causes the gear box to wear more severely. When the device is actually used, it lubricates and cools the gears by spraying lubricating oil, but the lubricating oil relies solely on external natural cooling and heating during the circulation process, and it is difficult to fully dissipate heat during long-term work, resulting in the gears and lubricating oil in the device still overheating after long-term work, and the overheated lubricating oil loses viscosity, thereby reducing the reliability of the device. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a novel twin-screw extruder gearbox, which aims to improve the problem of poor heat dissipation effect of the gearbox in the prior art that only relies on natural wind for heat dissipation.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a novel twin-screw extruder gearbox, comprising a gearbox, a top cover is fixedly connected to the top of the gearbox, gear shafts are rotatably connected to the inner wall of the gearbox, a motor is fixedly connected to the right side of the inner wall of the top cover, the output end of the motor is fixedly connected to a rotating rod, the left and right sides of the outer wall of the rotating rod are fixedly connected to bevel gear 1, the left and right sides of the top of the gearbox are rotatably connected to bevel gear 2, the bevel gear 1 is meshed with the bevel gear 2, the bottom of the bevel gear 2 passes through the gearbox and is fixedly connected to a fan blade, a baffle is fixedly connected to the middle of the inner wall of the gearbox, a spray pipe is rotatably connected to the inner side of the baffle, a filter plate is fixedly connected to the bottom of the inner wall of the gearbox, the top of the filter plate is connected to an oil pump, the output end of the oil pump is connected to a hose, the top of the hose is connected to a connecting block, the connecting block is rotatably connected to the spray pipe, the spray pipe is rotatably connected to the baffle, and a positioning mechanism is provided on the outside of the gearbox.

[0006] Through the above technical solution: starting the motor to rotate the rotating rod and bevel gear 1, and rotating the bevel gear 2 and the fan blades through meshing transmission, so as to cool the gear shaft and lubricating oil, and impurities in the air flow are intercepted by the filter screen and filter plate, and starting the oil pump to draw the lubricating oil in the gear box into the connecting block, and spraying the gear shaft through the spray pipe to achieve lubrication, and using the fan blades for cooling, and at the same time the spray pipe rotates and blocks along the baffle to expand the spray range, thereby enhancing the cooling effect on the gear shaft during the lubrication device.

[0007] As a further description of the above technical solution:

[0008] The positioning mechanism includes a positioning cover, a bidirectional threaded rod is rotatably connected to the middle part of the inner wall of the positioning cover, the upper and lower sides of the outer wall of the bidirectional threaded rod are threadedly connected to the lifting frame, the left and right sides of the outer wall of the lifting frame are rotatably connected to the telescopic plate, the outer side of the telescopic plate is rotatably connected to the plug-in plate, the top of the positioning cover is slidably connected to the movable cover, the movable cover is threadedly connected to the bidirectional threaded rod, and the left and right sides of the outer wall of the movable cover are fixedly connected to handles.

[0009] Through the above technical solution: by holding the handle to pull the movable cover to move, the bidirectional threaded rod is driven to rotate through the threaded connection, and then the lifting cover is moved, and the movement of the lifting cover drives the telescopic plate to rotate, and the rotation of the telescopic plate drives the plug-in plate to move, thereby completing the device plug-in installation, realizing quick disassembly and fixation, and improving the convenience of the device.

[0010] As a further description of the above technical solution:

[0011] The lower left side of the inner wall of the gear box is rotatably connected to the wheel 2, and the upper and lower sides of the left end of the inner wall of the gear box are rotatably connected to the wheel 1. A belt is provided on the outer side of the wheel 1, and multiple wheels 1 and 2 are connected through the belt transmission. The outer side of the upper wheel 1 passes through the gear box and is fixedly connected to the rotating rod, the outer side of the lower wheel 1 passes through the gear box and is fixedly connected to the spray pipe, and the outer side of the wheel 2 passes through the gear box and is fixedly connected to the gear shaft at the bottom.

[0012] According to the above technical solution, the belt can be used to drive the first and second wheels to rotate, thereby driving the spray pipe 18 and the gear shaft 3 to rotate.

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

[0014] A movable door is provided on the outside of the gear box, and hinges are fixedly connected to the left and right sides of the outer wall of the movable door. Filters are fixedly connected to the top and four sides of the gear box, and the movable door is rotatably connected to the gear box through the hinges.

[0015] Through the above technical solution: the movable door is opened and closed by the hinge, so that the inside of the device can be easily cleaned and maintained.

[0016] As a further description of the above technical solution:

[0017] The top of the movable door is rotatably connected with a clamping block, and the left side of the top of the gear box is fixedly connected with a clamping slot block, and the clamping block is clamped with the clamping slot block.

[0018] Through the above technical solution: by engaging the card block with the card slot block, the stability of the movable door during movement can be improved.

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

[0020] The middle part of the outer wall of the movable door is connected with a positioning frame, and the inner side of the positioning frame is fixedly connected with an observation window.

[0021] Through the above technical solution: the operation status of the device can be observed in real time through the observation window in the positioning frame.

[0022] As a further description of the above technical solution:

[0023] A controller is fixedly connected to the top rear side of the gear box, and the controller is electrically connected to the gear shaft and the motor respectively.

[0024] Through the above technical solution: the operation and switching of the gear shaft and the motor can be controlled separately by the controller.

[0025] As a further description of the above technical solution:

[0026] The outer wall of the positioning cover is fixedly connected with positioning blocks on all sides, and positioning holes are opened on the outer sides of the positioning blocks.

[0027] Through the above technical solution: by installing the threaded member in the positioning hole, the device can be easily installed.

[0028] The utility model has the following beneficial effects:

[0029] 1. In this utility model, the starting motor drives the rotating rod and bevel gear 1, and through meshing transmission, bevel gear 2 and the fan blades rotate, cooling the gear shaft and lubricating oil. The filter screen and filter plate intercept impurities in the airflow. The oil pump is activated to draw lubricating oil from the gear box into the connecting block. The oil is then sprayed onto the gear shaft through the spray pipe, lubricating it and cooling it along with the fan blades. The spray pipe rotates along the baffle and shields it to increase the spray range, enhancing the cooling effect on the gear shaft while lubricating the device, thereby improving reliability.

[0030] 2. In the utility model, the movable cover drives the bidirectional threaded rod to rotate through the threaded connection, the rotation of the bidirectional threaded rod causes the lifting cover to move through the threaded connection, the lifting cover drives the telescopic plate to move, the telescopic plate drives the plug-in plate to move by rotating and extending, and finally the device is plugged in and installed by moving the plug-in plate, the device can be quickly disassembled and fixed, thereby improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a novel twin-screw extruder gearbox proposed in the present utility model;

[0032] Figure 2 This is a front view of a novel twin-screw extruder gearbox proposed in the present invention;

[0033] Figure 3 This is a top view of a novel twin-screw extruder gearbox proposed in the present invention;

[0034] Figure 4 This is a diagram showing the blade structure of a new twin-screw extruder gearbox proposed in this utility model;

[0035] Figure 5 This is a partial structural breakdown diagram of a novel twin-screw extruder gearbox proposed in this utility model;

[0036] Figure 6 This is a structural diagram showing a positioning mechanism for a novel twin-screw extruder gearbox proposed in the present invention.

[0037] Legend:

[0038] 1. Gearbox; 2. Positioning mechanism; 201. Positioning cover; 202. Bidirectional threaded rod; 203. Lifting frame; 204. Telescopic plate; 205. Plug-in plate; 206. Moving cover; 207. Handle; 3. Gear shaft; 4. Top cover; 5. Motor; 6. Rotating rod; 7. Bevel gear 1; 8. Bevel gear 2; 9. Fan blade; 10. Rotor 1; 11. Rotor 2; 12. Filter; 13. Belt; 14. Filter plate; 15. Oil pump; 16. Hose; 17. Baffle; 18. Spray pipe; 19. Connecting block; 20. Movable door; 21. Hinge; 22. Positioning frame; 23. Observation window; 24. Card block; 25. Card slot block; 26. Controller; 27. Positioning block; 28. Positioning hole. DETAILED DESCRIPTION

[0039] 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.

[0040] Reference Figure 1 、 Figure 4 and Figure 5, the utility model provides an embodiment: a novel twin-screw extruder gearbox, including a gearbox 1, a top cover 4 is fixedly connected to the top of the gearbox 1, and gear shafts 3 are rotatably connected to the inner wall of the gearbox 1 on all sides. A motor 5 is fixedly connected to the right side of the inner wall of the top cover 4, and the output end of the motor 5 is fixedly connected to a rotating rod 6. Starting the motor 5 can drive the rotating rod 6 to rotate. The left and right sides of the outer wall of the rotating rod 6 are fixedly connected to a bevel gear 1 7. The left and right sides of the top of the gearbox 1 are rotatably connected to a bevel gear 2 8. The bevel gear 1 7 is meshed with the bevel gear 2 8. As the rotating rod 6 rotates, the bevel gear 1 7 can be driven to rotate and the bevel gear 2 8 is driven to rotate through meshing transmission. The bottom of the bevel gear 2 8 passes through the gearbox 1 and is fixedly connected to a fan blade 9. As the bevel gear 2 The rotation of 8 can simultaneously drive the fan blades 9 to rotate to dissipate heat inside the device. A baffle 17 is fixedly connected to the middle part of the inner wall of the gear box 1. The inner side of the baffle 17 is rotatably connected to a spray pipe 18. The spray rotation of the spray pipe 18 and the shielding of the baffle 17 can increase the spray range by rotating the spray pipe 18. The bottom of the inner wall of the gear box 1 is fixedly connected to a filter plate 14. The top of the filter plate 14 is connected to an oil pump 15. The output end of the oil pump 15 is connected to a hose 16. The top of the hose 16 is connected to a connecting block 19. The connecting block 19 is rotatably connected to the spray pipe 18. By starting the oil pump 15, the lubricating oil can be pumped into the connecting block 19 through the hose 16 to send the lubricating oil into the spray pipe 18. The spray pipe 18 is rotatably connected to the baffle 17. A positioning mechanism 2 is provided on the outside of the gear box 1.

[0041] Specifically, after starting the motor 5, the rotating rod 6 and the bevel gear 1 7 will rotate accordingly, and the bevel gear 2 8 and the fan blades 9 thereon will rotate through meshing transmission, thereby cooling the gear shaft 3 and the lubricating oil in the device, while the filter screen 12 and the filter plate 14 can intercept impurities in the air flow. At the same time, the oil pump 15 is started, which draws the lubricating oil in the gear box 1 into the connecting block 19 through the hose 16, and then sprays the gear shaft 3 through the spray pipe 18 to achieve lubrication and use the fan blades 9 for cooling at the same time. The spray pipe 18 rotates along the baffle 17 and is blocked by it to increase the spray range.

[0042] Reference Figure 1 、 Figure 3 and Figure 6The positioning mechanism 2 includes a positioning cover 201, and the middle part of the inner wall of the positioning cover 201 is rotatably connected to a bidirectional threaded rod 202. The upper and lower sides of the outer wall of the bidirectional threaded rod 202 are threadedly connected to a lifting frame 203. The rotation of the bidirectional threaded rod 202 can drive the lifting frame 203 to move up and down through the threaded connection. The left and right sides of the outer wall of the lifting frame 203 are rotatably connected to the telescopic plate 204. As the lifting frame 203 moves, the telescopic plate 204 can be driven to rotate. The outer side of the telescopic plate 204 is rotatably connected to the plug-in plate 205. The top of the positioning cover 201 is slidably connected to a moving cover 206. The moving cover 206 is threadedly connected to the bidirectional threaded rod 202. The movement and threaded connection of the moving cover 206 can drive the bidirectional threaded rod 202 to rotate. The left and right sides of the outer wall of the moving cover 206 are fixedly connected to handles 207.

[0043] Specifically, the movable cover 206 moves up and down, and the bidirectional threaded rod 202 can be driven to rotate by means of a threaded connection. When the bidirectional threaded rod 202 rotates, the lifting frame 203 located thereon can be moved through the threaded connection. As the lifting frame 203 moves, the telescopic plate 204 will also move accordingly, so that the telescopic plate 204 drives the plug-in plate 205 to move when rotating and extending, and finally the plug-in installation of the device is achieved through the movement of the plug-in plate 205.

[0044] Reference Figure 2 、 Figure 4 and Figure 5 The lower left side of the inner wall of the gear box 1 is rotatably connected to the runner 2 11, and the upper and lower sides of the left end of the inner wall of the gear box 1 are rotatably connected to the runner 10. A belt 13 is provided on the outside of the runner 10, and the transmission of the belt 13 can simultaneously drive the runner 2 11 and the runner 10 to rotate synchronously. Multiple runners 10 and the runner 2 11 are connected by the belt 13. The outer side of the upper runner 10 passes through the gear box 1 and is fixedly connected to the rotating rod 6. The outer side of the lower runner 10 passes through the gear box 1 and is fixedly connected to the spray pipe 18. The outer side of the runner 2 11 passes through the gear box 1 and is fixedly connected to the bottom gear shaft 3. The spray pipe 18 and the gear shaft 3 can be driven to rotate as the runner 2 11 and the runner 10 rotate;

[0045] Specifically, through the rotation of the belt 13, when the motor 5 drives the rotating rod 6 and the upper rotating wheel 10 thereon to rotate, the lower rotating wheel 10 and the rotating wheel 2 11 can be synchronously driven to rotate, and when the rotating rod 6 rotates, the spray pipe 18 and the lower gear shaft 3 can be synchronously driven to rotate.

[0046] Reference Figure 1 、 Figure 2 and Figure 3A movable door 20 is provided on the outside of the gear box 1. Hinges 21 are fixedly connected to the left and right sides of the outer wall of the movable door 20. By opening and closing the movable door 20, the interior of the device can be easily maintained and cleaned. The top of the gear box 1 is fixedly connected with a filter 12 on all sides. The movable door 20 is rotatably connected to the gear box 1 through the hinge 21. Impurities in the airflow can be intercepted by the filter 12; the top of the movable door 20 is rotatably connected to a card block 24, and a card slot block 25 is fixedly connected to the left side of the top of the gear box 1. The card block 24 is engaged with the card slot block 25. The engagement of the card block 24 with the card slot block 25 can improve the sealing line of the movable door 20;

[0047] Specifically, the movable door 20 can be opened and closed by the hinge 21 to facilitate installation and maintenance inside the device. By rotating the clamping block 24 to engage it with the slot block 25, the sealing of the movable door 20 can be improved to prevent lubricating oil from overflowing from the device when the device is running.

[0048] Reference Figure 1 、 Figure 3 and Figure 5 , the middle part of the outer wall of the movable door 20 is connected to a positioning frame 22, and an observation window 23 is fixedly connected to the inner side of the positioning frame 22, through which the operation of the internal part of the device can be observed; a controller 26 is fixedly connected to the top rear side of the gear box 1, and the controller 26 is electrically connected to the gear shaft 3 and the motor 5 respectively, and the start of the gear shaft 3 and the motor 5 can be controlled by the controller 26; the outer wall of the positioning cover 201 is fixedly connected with positioning blocks 27 on all sides, and positioning holes 28 are opened on the outer side of the positioning blocks 27, and the device can be disassembled and fixed through the positioning holes 28 on the positioning blocks 27;

[0049] Specifically, through the observation window 23 in the positioning frame 22, the interior of the device can be observed in real time to facilitate mechanical energy adjustment and timely maintenance. The controller 26 can control the startup and operation between the gear shaft 3 and the motor 5. By installing screws in the positioning holes 28 on the positioning block 27, the device can be easily installed and fixed.

[0050] Working principle: Before using the device, first start the motor 5 to drive the rotating rod 6 and the bevel gear 1 7 thereon to rotate, so as to drive the bevel gear 2 8 and the fan blade 9 thereon to rotate through meshing transmission, so as to cool the gear shaft 3 and lubricating oil inside the device. Then, the filter 12 and the filter plate 14 can intercept impurities in the airflow. At the same time, start the oil pump 15 to pump the lubricating oil in the gear box 1 into the connecting block 19 through the hose 16, and spray the lubricating oil on the gear shaft 3 through the spray pipe 18 to lubricate it and cool it along with the fan blade 9. At the same time, the spray pipe 18 is rotated and blocked along with the baffle 17 to increase the spray range.

[0051] By holding the handle to pull the movable cover 206 to move, the movable cover 206 can be moved up and down and connected with the threaded connection to drive the bidirectional threaded rod 202 to rotate, and as the bidirectional threaded rod 202 rotates, the lifting frame 203 thereon can be driven to move through the threaded connection, so as to drive the telescopic plate 204 to move as the lifting frame 203 moves, and through the rotation and extension of the telescopic plate 204, the plug-in plate 205 is driven to move, and the device is plugged and installed through the movement of the plug-in plate 205.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel twin-screw extruder gearbox, comprising a gearbox (1), characterized in that: The top of the gear box (1) is fixedly connected to a top cover (4), the inner wall of the gear box (1) is rotatably connected to gear shafts (3), the right side of the inner wall of the top cover (4) is fixedly connected to a motor (5), the output end of the motor (5) is fixedly connected to a rotating rod (6), the left and right sides of the outer wall of the rotating rod (6) are fixedly connected to bevel gear 1 (7), the left and right sides of the top of the gear box (1) are rotatably connected to bevel gear 2 (8), the bevel gear 1 (7) is meshed with the bevel gear 2 (8), and the bottom of the bevel gear 2 (8) passes through the gear box (1) and is fixedly connected to the fan blade ( 9), a baffle (17) is fixedly connected to the middle of the inner wall of the gear box (1), a spray pipe (18) is rotatably connected to the inner side of the baffle (17), a filter plate (14) is fixedly connected to the bottom of the inner wall of the gear box (1), the top of the filter plate (14) is connected to an oil pump (15), the output end of the oil pump (15) is connected to a hose (16), the top of the hose (16) is connected to a connecting block (19), the connecting block (19) is rotatably connected to the spray pipe (18), the spray pipe (18) is rotatably connected to the baffle (17), and a positioning mechanism (2) is provided on the outer side of the gear box (1).

2. A novel twin-screw extruder gearbox according to claim 1, characterized in that: The positioning mechanism (2) comprises a positioning cover (201), wherein a bidirectional threaded rod (202) is rotatably connected to the middle portion of the inner wall of the positioning cover (201), a lifting frame (203) is threadedly connected to the upper and lower sides of the outer wall of the bidirectional threaded rod (202), a telescopic plate (204) is rotatably connected to the left and right sides of the outer wall of the lifting frame (203), a plug-in plate (205) is rotatably connected to the outer side of the telescopic plate (204), a movable cover (206) is slidably connected to the top of the positioning cover (201), the movable cover (206) is threadedly connected to the bidirectional threaded rod (202), and a handle (207) is fixedly connected to the left and right sides of the outer wall of the movable cover (206).

3. A novel twin-screw extruder gearbox according to claim 1, characterized in that: The lower left side of the inner wall of the gear box (1) is rotatably connected to the second wheel (11), and the upper and lower left sides of the inner wall of the gear box (1) are rotatably connected to the first wheel (10). The outer side of the first wheel (10) is provided with a belt (13), and the plurality of first wheels (10) and the second wheel (11) are connected to each other through the belt (13). The outer side of the first wheel (10) on the upper side passes through the gear box (1) and is fixedly connected to the rotating rod (6). The outer side of the first wheel (10) on the lower side passes through the gear box (1) and is fixedly connected to the spray pipe (18). The outer side of the second wheel (11) passes through the gear box (1) and is fixedly connected to the gear shaft (3) at the bottom.

4. A novel twin-screw extruder gearbox according to claim 1, characterized in that: A movable door (20) is provided on the outside of the gear box (1), and hinges (21) are fixedly connected to the left and right sides of the outer wall of the movable door (20). Filters (12) are fixedly connected to the top and four sides of the gear box (1), and the movable door (20) is rotatably connected to the gear box (1) via the hinges (21).

5. A novel twin-screw extruder gearbox according to claim 4, characterized in that: The top of the movable door (20) is rotatably connected to a clamping block (24), and the left side of the top of the gear box (1) is fixedly connected to a clamping slot block (25), and the clamping block (24) is engaged with the clamping slot block (25).

6. A novel twin-screw extruder gearbox according to claim 4, characterized in that: The middle portion of the outer wall of the movable door (20) is connected to a positioning frame (22), and an observation window (23) is fixedly connected to the inner side of the positioning frame (22).

7. A novel twin-screw extruder gearbox according to claim 1, characterized in that: A controller (26) is fixedly connected to the top rear side of the gear box (1), and the controller (26) is electrically connected to the gear shaft (3) and the motor (5) respectively.

8. A novel twin-screw extruder gearbox according to claim 2, characterized in that: Positioning blocks (27) are fixedly connected to the outer wall of the positioning cover (201) on all sides, and positioning holes (28) are opened on the outer sides of the positioning blocks (27).

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