Transmission device for screw extruder

Abstract

The utility model relates to the technical field of screw transmission, in particular to a transmission device for a screw extruder, which comprises a motor, a driving sleeve fixedly sleeved at the output end of the motor, a transmission sleeve arranged on one side of the driving sleeve, a first gear mounted on one side of the transmission sleeve, a second gear meshed with one side of the first gear, and a third gear mounted on the upper side of the second gear. One side of the third gear is meshed with a fourth gear, one side of the fourth gear is provided with a driving gear, the lower side of the driving gear is meshed with a driven gear, and one side of the driven gear is provided with an extruder body; the extruder has the beneficial effects that the driving sleeve and the transmission sleeve are in transmission, the transmission sleeve indirectly drives the first gear to rotate, the first gear and the second gear are in meshing transmission, the third gear and the fourth gear are in meshing transmission, and the driving gear and the driven gear are in meshing transmission, so that the driven gear drives the extruder main body to operate; therefore, the two extruder main bodies are driven to work simultaneously, and bidirectional material processing and conveying can be achieved through the same power source drive.

Description

Technical Field

[0001] The utility model relates to the technical field of screw transmission, in particular to a transmission device for a screw extruder. Background Art

[0002] Screw extruders are widely used in mixing, extrusion, molding and reaction processes in the processing of plastics, rubber, synthetic fibers, coatings, pulp, pharmaceuticals, foods, etc. Twin-screw extruders are developed based on single-screw extruders. Due to their good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, they have been widely used in the molding processing of plastic extrusion products.

[0003] In the prior art, the common screw extruders on the market today are all connected to the main body of the screw extruder through a motor via a coupling, or driven by the meshing transmission of gears to drive two screws to rotate simultaneously, thereby processing and transmitting materials.

[0004] However, whether it is driven by a single motor or a gear meshing transmission to drive the two screws, the screw extruder can only process and transmit materials in one direction, and most power devices cannot use the same power source to achieve two-way material processing and transmission, and then need to install additional motors or place the two extruders in reverse to achieve this, which increases the cost of use. Utility Model Content

[0005] The purpose of the present utility model is to provide a transmission device for a screw extruder to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a transmission device for a screw extruder, comprising: a motor, a fixed sleeve at the output end of the motor is provided with a drive sleeve, a transmission sleeve is provided on one side of the drive sleeve, and a first gear is installed on one side of the transmission sleeve.

[0007] The first gear is meshed with the second gear on one side, the third gear is installed on the upper side of the second gear, the third gear is meshed with the fourth gear on one side, the fourth gear is installed on one side of the driving gear, the lower side of the driving gear is meshed with the driven gear, and the extruder body is installed on one side of the driven gear.

[0008] Preferably, the lower surface of the motor is fixedly connected to the base plate, the drive sleeve and the transmission sleeve are driven by a cable, one side of the transmission sleeve is rotatably sleeved in the support seat, and the other side of the transmission sleeve is fixedly sleeved with a drive shaft.

[0009] Preferably, the first gear is fixedly connected to one end of the driving shaft, the second gear and the third gear are fixedly connected via a connecting shaft, and the connecting shaft sleeve is disposed in the bearing support plate and is rotatably connected to the bearing support plate.

[0010] Preferably, the lower surface of the support seat is fixedly connected to the base plate, the fourth gear and the driving gear are fixedly connected via a transmission shaft, and the transmission shaft is sleeved in the bearing bracket and rotatably connected to the bearing bracket.

[0011] Preferably, the lower surface of the bearing bracket is fixedly connected to the base plate, an output shaft is sleeved inside the driven gear, and a group of two driven gears are provided and are symmetrically arranged about the center plane of the base plate.

[0012] Preferably, one end of the output shaft is sleeved in the bearing seat and rotatably connected to the bearing seat, and the lower surface of the bearing seat is fixedly connected to the base plate.

[0013] Preferably, the other end of the output shaft is fixedly connected to the extruder body, the lower surface of the extruder body is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the bottom plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by starting the motor, the drive sleeve fixedly connected to its output end is driven to rotate, and under the rotation action of the drive sleeve, the cable is wound between the drive sleeve and the transmission sleeve, thereby driving the transmission sleeve to rotate in the support seat, and the transmission sleeve drives the drive shaft sleeved on one side thereof to rotate, and the drive shaft drives the first gear to rotate, and the first gear and the second gear are meshed for transmission. The second gear drives the third gear to rotate under the connection action of the connecting shaft, and the third gear is then meshed for transmission with the fourth gear. The fourth gear drives the drive gear to rotate through the transmission shaft, and the meshing transmission between the drive gear and the driven gear drives the driven gear to rotate. An output shaft is provided in the fixed sleeve of the driven gear, and the output shaft drives the two extruder bodies to operate at the same time, thereby realizing the same power source driving two-way material processing and transmission, avoiding the trouble of installing a motor or placing two screw extruders in reverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic top view of the overall structure of the utility model;

[0017] Figure 3 This is a bottom view schematic diagram of the overall structure of the utility model;

[0018] Figure 4 It is a side view schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. Motor; 2. Drive sleeve; 3. Transmission sleeve; 4. First gear; 5. Second gear; 6. Third gear; 7. Fourth gear; 8. Drive gear; 9. Driven gear; 10. Extruder body;

[0020] 11. Bottom plate; 12. Cable; 13. Support seat; 14. Drive shaft; 15. Connecting shaft; 16. Bearing support plate; 17. Transmission shaft; 18. Bearing bracket; 19. Output shaft; 20. Bearing seat; 21. Connecting plate. DETAILED DESCRIPTION

[0021] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit 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.

[0022] Example 1

[0023] See also Figures 1-4 The utility model provides a technical solution: a transmission device for a screw extruder, comprising: a motor 1, a driving sleeve 2 is provided on the output end fixing sleeve of the motor 1, a transmission sleeve 3 is provided on one side of the driving sleeve 2, a first gear 4 is installed on one side of the transmission sleeve 3, a second gear 5 is meshed with one side of the first gear 4, a third gear 6 is installed on the upper side of the second gear 5, a fourth gear 7 is meshed with one side of the third gear 6, a driving gear 8 is installed on one side of the fourth gear 7, a driven gear 9 is meshed with the lower side of the driving gear 8, and an extruder body 10 is installed on one side of the driven gear 9.

[0024] By starting the motor 1, transmission is caused between the drive sleeve 2 and the transmission sleeve 3, and the transmission sleeve 3 indirectly drives the first gear 4 to rotate. The first gear 4 is engaged with the second gear 5 for transmission, so that the second gear 5 indirectly drives the third gear 6 to rotate, and the third gear 6 is engaged with the fourth gear 7 for transmission, thereby indirectly driving the drive gear 8 to rotate, and the drive gear 8 is engaged with the driven gear 9 for transmission, so that the driven gear 9 drives the extruder body 10 to operate. The driven gears 9 are symmetrically arranged, thereby driving the two extruder bodies 10 to operate at the same time, and finally realizing that the same power source can drive bidirectional material processing and transmission, avoiding the need to install a motor 1 or the trouble of placing two screw extruders in reverse.

[0025] Example 2

[0026] On the basis of embodiment 1, the lower surface of the motor 1 is fixedly connected to the base plate 11, the drive sleeve 2 and the transmission sleeve 3 are transmitted by a cable 12, one side of the transmission sleeve 3 is rotatably sleeved in the support seat 13, and the other side of the transmission sleeve 3 is fixedly sleeved with a drive shaft 14. The base plate 11 supports the entire device, and the cable 12 is wound between the drive sleeve 2 and the transmission sleeve 3 to transmit the power. The first gear 4 is fixedly connected to one end of the drive shaft 14, and the second gear 5 and the third gear 6 are fixedly connected by a connecting shaft 15. The connecting shaft 15 is sleeved in the bearing support plate 16 and is connected to the bearing support plate 1 6 are rotatably connected, and the drive shaft 14 is driven to rotate through the transmission sleeve 3, thereby driving the first gear 4 to rotate. The installation of the connecting shaft 15 facilitates the transmission between the second gear 5 and the third gear 6, and the bearing support plate 16 stably supports the connecting shaft 15. The lower surface of the support seat 13 is fixedly connected to the bottom plate 11. The fourth gear 7 and the driving gear 8 are fixedly connected through the transmission shaft 17. The transmission shaft 17 is sleeved in the bearing bracket 18 and rotatably connected with the bearing bracket 18 to facilitate the transmission between the fourth gear 7 and the driving gear 8, and the bearing bracket 18 stably supports the transmission shaft 17.

[0027] By starting the motor 1, the drive sleeve 2 fixedly connected to its output end is driven to rotate. Under the rotation of the drive sleeve 2, the cable 12 is wound between the drive sleeve 2 and the transmission sleeve 3, thereby driving the transmission sleeve 3 to rotate in the support seat 13. The transmission sleeve 3 drives the drive shaft 14 set on one side to rotate, and the drive shaft 14 drives the first gear 4 to rotate. The first gear 4 is engaged with the second gear 5 for transmission. The second gear 5 drives the third gear 6 to rotate under the connection action of the connecting shaft 15. The bearing support plate 16 stably supports the connecting shaft 15. The third gear 6 is then engaged with the fourth gear 7 for transmission. The fourth gear 7 drives the drive gear 8 to rotate through the transmission shaft 17, and the bearing bracket 18 stably supports the transmission shaft 17.

[0028] Example 3

[0029] On the basis of Example 2, the lower surface of the bearing bracket 18 is fixedly connected to the base plate 11, and an output shaft 19 is sleeved in the driven gear 9. The driven gear 9 is provided with a group of two and is symmetrically arranged about the center plane of the base plate 11. The output shaft 19 facilitates the transmission between the driven gear 9 and the extruder body 10. One end of the output shaft 19 is sleeved in the bearing seat 20 and is rotatably connected to the bearing seat 20. The lower surface of the bearing seat 20 is fixedly connected to the base plate 11. The bearing seat 20 stably supports the output shaft 19. The other end of the output shaft 19 is fixedly connected to the extruder body 10. The lower surface of the extruder body 10 is fixedly connected to the connecting plate 21. The connecting plate 21 is fixedly connected to the base plate 11. The output shaft 19 drives the extruder body 10 to operate, and the connecting plate 21 fixedly supports the extruder body 10.

[0030] The driven gear 9 is driven to rotate by meshing transmission between the driving gear 8 and the driven gear 9. An output shaft 19 is fixedly sleeved in the driven gear 9. One end of the output shaft 19 is fixedly connected to the extruder body 10, and the other end of the output shaft 19 is sleeved in the bearing seat 20. The bearing seat 20 provides stable support for the output shaft 19.

[0031] In actual use, the motor 1 is electrically connected to the external terminal control device, and the motor 1 is started to drive the drive sleeve 2 fixedly connected to its output end to rotate. Under the rotation of the drive sleeve 2, the cable 12 is wound between the drive sleeve 2 and the transmission sleeve 3, thereby driving the transmission sleeve 3 to rotate in the support seat 13, and the transmission sleeve 3 drives the drive shaft 14 set on one side thereof to rotate, and the drive shaft 14 drives the first gear 4 to rotate, and the first gear 4 is meshed with the second gear 5 for transmission. The second gear 5 drives the third gear 6 to rotate under the connection of the connecting shaft 15, and the shaft The support plate 16 provides stable support for the connecting shaft 15, and the third gear 6 is then meshed with the fourth gear 7 for transmission. The fourth gear 7 drives the driving gear 8 to rotate through the transmission shaft 17. The meshing transmission between the driving gear 8 and the driven gear 9 drives the driven gear 9 to rotate. An output shaft 19 is fixed in the driven gear 9. The output shaft 19 drives the two extruder bodies 10 to operate simultaneously, and finally realizes the bidirectional material processing and transmission driven by the same power source, avoiding the need to install a motor 1 or place the two screw extruders in reverse.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission device for a screw extruder, comprising a motor (1), characterized in that: The output end fixing sleeve of the motor (1) is provided with a driving sleeve (2), a transmission sleeve (3) is provided on one side of the driving sleeve (2), and a first gear (4) is installed on one side of the transmission sleeve (3); The first gear (4) is meshed with a second gear (5) on one side, a third gear (6) is installed on the upper side of the second gear (5), a fourth gear (7) is meshed with one side of the third gear (6), a driving gear (8) is installed on one side of the fourth gear (7), a driven gear (9) is meshed with the lower side of the driving gear (8), and an extruder body (10) is installed on one side of the driven gear (9).

2. A transmission device for a screw extruder according to claim 1, characterized in that: The lower surface of the motor (1) is fixedly connected to the base plate (11), and the drive sleeve (2) and the transmission sleeve (3) are driven by a cable (12). One side of the transmission sleeve (3) is rotatably sleeved in the support seat (13), and the other side of the transmission sleeve (3) is fixedly sleeved with a drive shaft (14).

3. A transmission device for a screw extruder according to claim 2, characterized in that: The first gear (4) is fixedly connected to one end of the driving shaft (14), and the second gear (5) and the third gear (6) are fixedly connected via a connecting shaft (15). The connecting shaft (15) is sleeved in the bearing support plate (16) and is rotatably connected to the bearing support plate (16).

4. A transmission device for a screw extruder according to claim 3, characterized in that: The lower surface of the support seat (13) is fixedly connected to the base plate (11), and the fourth gear (7) and the driving gear (8) are fixedly connected via a transmission shaft (17). The transmission shaft (17) is sleeved in the bearing bracket (18) and is rotatably connected to the bearing bracket (18).

5. A transmission device for a screw extruder according to claim 4, characterized in that: The lower surface of the bearing bracket (18) is fixedly connected to the base plate (11), and an output shaft (19) is sleeved inside the driven gear (9). The driven gears (9) are provided in a group of two and are symmetrically arranged about the center plane of the base plate (11).

6. A transmission device for a screw extruder according to claim 5, characterized in that: One end of the output shaft (19) is sleeved in the bearing seat (20) and is rotatably connected to the bearing seat (20), and the lower surface of the bearing seat (20) is fixedly connected to the bottom plate (11).

7. A transmission device for a screw extruder according to claim 6, characterized in that: The other end of the output shaft (19) is fixedly connected to the extruder body (10), the lower surface of the extruder body (10) is fixedly connected to the connecting plate (21), and the connecting plate (21) is fixedly connected to the bottom plate (11).

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