A new differential speed reducer for internal mixer

Abstract

This utility model discloses a novel differential speed reducer for an internal mixer, relating to the field of differential speed reducers for internal mixers. It includes a differential speed reducer body, in which a drive shaft, a driven gear, and a driving gear are installed within the inner cavity of the differential speed reducer body. A second driven shaft is installed at one end of the driven gear, and a first driven shaft is installed at one end of the driving gear. A gear ring is installed within the inner cavity of the differential speed reducer body, and a filter screen is installed on the outer wall of the gear ring. A scraper is provided on the outer wall of the filter screen. This novel differential speed reducer for an internal mixer, through the use of driven and driving gears with different modules, causes the rotational speeds of the second and first driven shafts to be inconsistent after rotation. Based on this, the number of shearing operations during the internal mixer process can be increased, thereby achieving a better dispersion effect.

Description

Technical Field

[0001] This utility model relates to the field of differential speed reducers for internal mixers, and particularly to a novel differential speed reducer for internal mixers. Background Technology

[0002] A closed-type rubber mixing mill, also known as an internal mixer or kneader, is mainly used for the plasticizing and mixing of rubber. An internal mixer is a machine equipped with a pair of rotors of specific shapes that rotate relative to each other, intermittently plasticizing and mixing polymer materials under adjustable temperature and pressure in a closed environment. It mainly consists of a mixing chamber, rotors, rotor sealing devices, feeding and pressing devices, unloading devices, transmission devices, and a base.

[0003] The internal mixer currently in use uses a gearbox with a fixed speed, which has a fixed angle for each revolution. This results in a fixed relative shear angle, leading to insufficient shear force and poor dispersion during internal mixing.

[0004] Therefore, it is necessary to propose a new type of differential speed reducer for internal mixers to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a novel differential speed reducer for internal mixers, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A novel differential speed reducer for an internal mixer includes a differential speed reducer body. A drive shaft, a driven gear, and a drive gear are installed in the inner cavity of the differential speed reducer body. A second driven shaft is installed at one end of the driven gear, and a first driven shaft is installed at one end of the drive gear.

[0008] A gear ring is installed in the inner cavity of the differential gearbox body, a filter screen is installed on the outer wall of the gear ring, and a scraper is provided on the outer wall of the filter screen.

[0009] Preferably, the outer wall of the differential gearbox body is equipped with a door, the first driven shaft and the second driven shaft extend to the outside of the door, the module of the driven gear is smaller than that of the driving gear, and the driven gear meshes with the driving gear.

[0010] Preferably, a synchronous belt is installed in the inner cavity of the differential gearbox body, and synchronous pulleys are installed at the top and bottom of the inner cavity of the synchronous belt. A drive motor is installed on the outer wall of the differential gearbox body, and the drive motor is connected to one of the synchronous pulleys through a rotating shaft. The two synchronous pulleys are respectively connected to the drive shaft and the drive gear.

[0011] Preferably, a first gear is mounted on the outer wall of the second driven shaft, a second gear meshes with the side of the first gear, and a connecting shaft is mounted in the center of the second gear, with the first gear meshing with the second gear.

[0012] Preferably, a third gear is installed at the other end of the connecting shaft, the third gear meshes with a gear ring, a heat dissipation fan is installed in the inner cavity of the gear ring, and the inner cavity of the differential gearbox body is connected to the outside of the differential gearbox body through a filter screen.

[0013] Preferably, the scraper is symmetrically mounted with mounting shafts at both ends, the mounting shafts are mounted on the outer wall of the gear ring, and the scraper is attached to the outer wall of the filter screen.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The novel internal mixer differential gearbox, through driven gears and driving gears of different modules, makes the rotation speeds of the second driven shaft and the first driven shaft inconsistent after they rotate. Based on this, the number of shearing operations in the internal mixer during the internal mixing process can be increased, thereby achieving a better dispersion effect.

[0016] 2. The new type of internal mixer differential gearbox, by starting the set drive motor, enables the synchronous pulley and synchronous belt to drive the drive shaft and drive gear. At this time, the drive gear can mesh with the driven gear, thereby driving the second driven shaft and the first driven shaft to rotate. Based on this, the internal mixer connected to the second driven shaft and the first driven shaft can be driven to perform internal mixing work.

[0017] 3. This new type of internal mixer differential gearbox, through the setting of a second driven shaft, drives the first gear to mesh with the second gear after rotation, thereby driving the third gear to rotate through the connecting shaft. Based on this, the gear ring can rotate, so that the cooling fan blades can dissipate heat from the inner cavity of the differential gearbox body. At the same time, the filter screen can prevent debris and dust from entering the inner cavity of the differential gearbox body. When the gear ring rotates, it will drive the scraper to rotate, thereby enabling the cleaning of the filter screen. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cavity of the differential gearbox body of this utility model;

[0020] Figure 3 This is a schematic diagram of the drive shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the back of the gear ring of this utility model.

[0022] In the diagram: 1. Differential gearbox body; 2. Gearbox door; 3. First driven shaft; 4. Second driven shaft; 5. Driven gear; 6. Drive gear; 7. Drive shaft; 8. Synchronous belt; 9. Synchronous pulley; 10. Drive motor; 11. First gear; 12. Second gear; 13. Connecting shaft; 14. Third gear; 15. Gear ring; 16. Filter screen; 17. Scraper; 18. Mounting shaft; 19. Cooling fan blades. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Example 1:

[0025] like Figures 1-3 As shown, a novel differential gearbox for a mixer includes a differential gearbox body 1. A drive shaft 7, a driven gear 5, and a drive gear 6 are installed inside the cavity of the differential gearbox body 1. A second driven shaft 4 is installed at one end of the driven gear 5, and a first driven shaft 3 is installed at one end of the drive gear 6. A door 2 is installed on the outer wall of the differential gearbox body 1. The first driven shaft 3 and the second driven shaft 4 extend to the outside of the door 2. The module of the driven gear 5 is smaller than that of the drive gear 6, and the driven gear 5 meshes with the drive gear 6. A synchronous belt 8 is installed inside the cavity of the differential gearbox body 1. Synchronous pulleys 9 are installed at the top and bottom of the cavity of the synchronous belt 8. A drive motor 10 is installed on the outer wall of the differential gearbox body 1. The rotating shaft is connected to one of the synchronous pulleys 9. The two synchronous pulleys 9 are connected to the drive shaft 7 and the drive gear 6 respectively. Through the driven gears 5 and the drive gear 6 with different modules, after they rotate, the rotation speeds of the second driven shaft 4 and the first driven shaft 3 are inconsistent. Based on this, the number of shearing operations in the internal mixer during the internal mixing process can be increased, thereby achieving a better dispersion effect. By starting the drive motor 10, the synchronous pulleys 9 and the synchronous belt 8 can drive the drive shaft 7 and the drive gear 6. At this time, the drive gear 6 can mesh with the driven gear 5, thereby driving the second driven shaft 4 and the first driven shaft 3 to rotate. Based on this, the internal mixer connected to the second driven shaft 4 and the first driven shaft 3 can be driven to perform internal mixing work.

[0026] Example 2:

[0027] like Figures 1-4As shown, a novel internal mixer differential gearbox is disclosed. A gear ring 15 is installed in the inner cavity of the differential gearbox body 1. A filter screen 16 is installed on the outer wall of the gear ring 15. A scraper 17 is provided on the outer wall of the filter screen 16. A first gear 11 is installed on the outer wall of the second driven shaft 4. A second gear 12 meshes with the side of the first gear 11. A connecting shaft 13 is installed in the center of the second gear 12. The first gear 11 meshes with the second gear 12. A third gear 14 is installed at the other end of the connecting shaft 13. The third gear 14 meshes with the gear ring 15. A cooling fan blade 19 is installed in the inner cavity of the gear ring 15. The inner cavity of the differential gearbox body 1 is connected to the outside of the differential gearbox body 1 through the filter screen 16. Mounting shafts 18 are symmetrically installed at both ends of the scraper 17. The mounting shafts 18 are installed on the outer wall of the gear ring 15. The scraper 17 is attached to the outer wall of the filter screen 16.

[0028] The second driven shaft 4, when rotated, will cause the first gear 11 and the second gear 12 to mesh, thereby driving the third gear 14 to rotate through the connecting shaft 13. Based on this, the gear ring 15 can rotate, so that the cooling fan blades 19 can dissipate heat from the inner cavity of the differential gearbox body 1. At the same time, the filter screen 16 can prevent debris and dust from entering the inner cavity of the differential gearbox body 1. When the gear ring 15 rotates, it will drive the scraper 17 to rotate, thereby cleaning the filter screen 16.

[0029] It should be noted that this utility model is a novel differential speed reducer for an internal mixer. In use, the first driven shaft 3 and the second driven shaft 4 are connected to the output shaft of the internal mixer. The drive motor 10 is started, which causes the synchronous belt 8 and the synchronous pulley 9 to rotate. Based on this, the drive shaft 7 and the drive gear 6 are driven to rotate. After the drive gear 6 rotates, it meshes with the driven gear 5, thereby driving the first driven shaft 3 and the second driven shaft 4 to rotate. At this time, the internal mixer can perform internal mixing work.

[0030] While the second driven shaft 4 rotates, it drives the first gear 11. After the first gear 11 meshes with the second gear 12, it drives the third gear 14 through the connecting shaft 13. At this time, the third gear 14 meshes with the gear ring 15, thereby driving the heat dissipation fan blades 19 in the inner cavity of the gear ring 15 to rotate, so that the differential gearbox body 1 can be cooled when it is working.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of differential reduction gearbox for internal mixers, comprising a differential reduction gearbox body (1), characterised in that: The differential gearbox body (1) has a drive shaft (7), a driven gear (5) and a drive gear (6) installed in its inner cavity. A second driven shaft (4) is installed at one end of the driven gear (5) and a first driven shaft (3) is installed at one end of the drive gear (6). A gear ring (15) is installed in the inner cavity of the differential gearbox body (1), and a filter screen (16) is installed on the outer wall of the gear ring (15). A scraper (17) is provided on the outer wall of the filter screen (16).

2. A new differential reduction gearbox for internal mixer according to claim 1, characterized in that: The outer wall of the differential gearbox body (1) is equipped with a door (2), the first driven shaft (3) and the second driven shaft (4) extend to the outside of the door (2), the module of the driven gear (5) is smaller than that of the driving gear (6), and the driven gear (5) meshes with the driving gear (6).

3. A new type of differential reduction gearbox for internal mixer according to claim 1, characterized in that: A timing belt (8) is installed in the inner cavity of the differential gearbox body (1). A timing pulley (9) is installed at the top and bottom of the inner cavity of the timing belt (8). A drive motor (10) is installed on the outer wall of the differential gearbox body (1). The drive motor (10) is connected to one of the timing pulleys (9) through a rotating shaft. The two timing pulleys (9) are connected to the drive shaft (7) and the drive gear (6) respectively.

4. A novel differential speed reducer for an internal mixer according to claim 1, characterized in that: The outer wall of the second driven shaft (4) is fitted with a first gear (11), the side of the first gear (11) is meshed with a second gear (12), and a connecting shaft (13) is fitted in the center of the second gear (12). The first gear (11) meshes with the second gear (12).

5. A new type of differential reduction gearbox for internal mixers according to claim 4, characterized in that: The other end of the connecting shaft (13) is equipped with a third gear (14), which meshes with a gear ring (15). A cooling fan blade (19) is installed in the inner cavity of the gear ring (15). The inner cavity of the differential gearbox body (1) is connected to the outside of the differential gearbox body (1) through a filter screen (16).

6. A new type of differential reduction gearbox for internal mixers according to claim 5, characterized in that: The scraper (17) is symmetrically mounted with mounting shafts (18) at both ends. The mounting shafts (18) are mounted on the outer wall of the gear ring (15), and the scraper (17) is attached to the outer wall of the filter screen (16).

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