CN214926896U - Screw extruder direct drive motor without speed reducing mechanism - Google Patents
Screw extruder direct drive motor without speed reducing mechanism Download PDFInfo
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- CN214926896U CN214926896U CN202121226026.XU CN202121226026U CN214926896U CN 214926896 U CN214926896 U CN 214926896U CN 202121226026 U CN202121226026 U CN 202121226026U CN 214926896 U CN214926896 U CN 214926896U
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- screw
- speed reducing
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Abstract
The utility model discloses a screw extruder direct drive motor without a speed reducing mechanism, which relates to the design and application field of a permanent magnet synchronous motor, and comprises an integrated thrust device, a motor body and a screw extruder mechanism, wherein a motor front end cover is fixedly arranged on one side of the motor body, and the output end of a motor shaft penetrates through the motor front end cover and extends out of the motor body; the integrated thrust device is detachably mounted on the front end cover of the motor, the thrust device shaft is arranged in the integrated thrust device, one end of the thrust device shaft is connected with the output end through a spline, and the other end of the thrust device shaft is connected with the screw extrusion mechanism through a spline; the shaft of the thrust device is internally provided with a screw channel in a penetrating way and used for being inserted into an extruder screw connected with the end part of the screw extrusion mechanism to realize transmission. The utility model has no reduction gear, the motor has large torque, and the maintenance is almost not needed when in use; because the speed reducing mechanism is not arranged, the transmission efficiency is extremely high, and the efficiency is hardly lost after the motor is output except the friction of the bearing; the permanent magnet motor is adopted, so that the efficiency is high.
Description
Technical Field
The utility model relates to a PMSM design and field of using thereof, concretely relates to screw extruder of no reduction gears directly drives motor.
Background
The motor and the speed reducer are mostly adopted in the traditional extruder structure, the speed reducer aims at reducing the rotating speed of the motor, so that the motor reaches the speed of actual needs, and meanwhile, the torque is increased, so that the output torque meets the actual needs of a screw. This has the disadvantage that the gearbox requires precision machining or otherwise has a short service life and requires constant maintenance in use, including cooling, oil replacement, clearance adjustment, etc. The time and labor are high, and the transmission mechanism loses part of efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide a no reduction gears's screw extruder directly drives motor, have simple structure, non-maintaining, safe and reliable's advantage.
The purpose of the utility model is accomplished through following technical scheme: the direct drive motor of the screw extruder without the speed reducing mechanism comprises an integrated thrust device, a motor body and a screw extruder mechanism, wherein a motor front end cover is fixedly arranged on one side of the motor body, and the output end of a motor shaft penetrates through the motor front end cover and extends out of the motor body; the integrated thrust device is detachably mounted on the front end cover of the motor, the thrust device shaft is arranged in the integrated thrust device, one end of the thrust device shaft is in splined connection transmission with the output end, and the other end of the thrust device shaft is in splined connection with the screw extrusion mechanism; the shaft of the thrust device is internally provided with a screw channel in a penetrating way and used for being inserted into an extruder screw connected with the end part of the screw extrusion mechanism to realize transmission.
As a further technical scheme, an involute external spline is arranged on the output end, and an involute internal spline is arranged at the connecting position of the thrust device shaft and the output end.
As a further technical scheme, an involute internal spline is arranged at the connecting position of the thrust device shaft and the screw extrusion mechanism.
As a further technical scheme, the motor body adopts a large-torque permanent magnet synchronous motor.
As a further technical scheme, the bottom of the motor body is provided with a ground foot, and the ground foot supports the motor body on the ground and absorbs reverse thrust generated by rotation of the screw extrusion mechanism.
As a further technical scheme, the motor shaft is a hollow shaft and is supported on a front end cover of the motor through a motor bearing.
As a further technical solution, the integrated thrust device further includes a device housing, and the thrust device shaft is supported on the device housing through two thrust device bearings.
The utility model has the advantages that: the motor has no reduction gear, the motor has large torque, and the motor almost does not need maintenance when in use; because the speed reducing mechanism is not arranged, the transmission efficiency is extremely high, and the efficiency is hardly lost after the motor is output except the friction of the bearing; the permanent magnet motor is adopted, so that the efficiency is high.
Drawings
Fig. 1 is the installation structure schematic diagram of the screw extruding mechanism of the present invention.
Fig. 2 is a structural sectional view of the present invention.
Fig. 3 is a side view of the structure of the present invention.
Fig. 4 is a schematic structural diagram of the integrated thrust device.
Description of reference numerals: the device comprises an integrated thrust device 1, an output end 2, a motor body 3, a foot margin 4, a motor shaft 6, a thrust device shaft 7, a motor front end cover 8, a screw extrusion mechanism 9, an extruder screw 10, a screw channel 11, a motor bearing 12, a device shell 13 and a thrust device bearing 14.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in attached figures 1-4, the screw extruder direct drive motor without the speed reduction mechanism comprises an integrated thrust device 1, a motor body 3 and a screw extruder mechanism 9, wherein a motor front end cover 8 is fixedly arranged on one side of the motor body 3, and an output end 2 of a motor shaft 6 penetrates through the motor front end cover 8 and extends out of the motor body 3; the integrated thrust device 1 is detachably mounted on a front end cover 8 of the motor, the thrust device shaft 7 is arranged in the integrated thrust device 1, one end of the thrust device shaft 7 is in splined connection transmission with the output end 2, and the other end of the thrust device shaft 7 is in splined connection with the screw extrusion mechanism 9; the thrust device shaft 7 is internally provided with a screw channel 11 in a penetrating way and used for being inserted into an extruder screw 10 connected with the end part of the screw extrusion mechanism 9 to realize transmission.
Preferably, an involute external spline is arranged on the output end 2, and an involute internal spline is arranged at the connecting position of the thrust device shaft 7 and the output end 2. An involute internal spline is arranged at the connecting position of the thrust device shaft 7 and the screw extrusion mechanism 9.
Referring to fig. 2, the motor body 3 is a high-torque permanent magnet synchronous motor. The motor shaft 6 is a hollow shaft to adapt to the large torque output by the motor body 3, and the motor shaft 6 is supported on the motor front end cover 8 through a motor bearing 12 (preferably a deep groove ball bearing with a bearing code number of 6319).
Referring to fig. 3, the bottom of the motor body 3 is provided with feet 4, and the feet 4 support the motor body 3 on the ground and absorb the reverse thrust generated by the rotation of the screw extrusion mechanism 9.
Referring to fig. 4, the integrated thrust unit 1 further includes a unit housing 13, and the thrust unit shaft 7 is supported on the unit housing 13 by two thrust unit bearings 14 (a thrust ball bearing of bearing number 51422 and a self-aligning ball bearing of bearing number 2220, respectively).
The utility model discloses a working process: the middle hollow motor shaft 6 obtains torque from a large-torque permanent magnet synchronous motor (the motor body 3), the output end 2 transmits the torque to the middle hollow thrust device shaft 7 through a spline to drive the screw extrusion mechanism 9 to rotate, backward thrust generated when the extruder screw 10 rotates is transmitted to the integrated thrust device 1, and the integrated thrust device 1 transmits the thrust to the motor front end cover 8 and is finally absorbed by the ground feet 4.
The utility model discloses saved the speed reducer in the current mechanism, the power of motor output passes through thrust device and directly transmits for screw rod extrusion mechanism, does not have middle transmission energy loss, therefore transmission efficiency is high, long service life simultaneously.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (7)
1. The utility model provides a no reduction gears's screw extruder directly drives motor which characterized in that: the device comprises an integrated thrust device (1), a motor body (3) and a screw extrusion mechanism (9), wherein a motor front end cover (8) is fixedly arranged on one side of the motor body (3), and an output end (2) of a motor shaft (6) penetrates through the motor front end cover (8) and extends out of the motor body (3); the integrated thrust device (1) is detachably mounted on a front end cover (8) of the motor, a thrust device shaft (7) is arranged in the integrated thrust device (1), one end of the thrust device shaft (7) is in splined connection transmission with the output end (2), and the other end of the thrust device shaft (7) is in splined connection with the screw extrusion mechanism (9); the thrust device shaft (7) is internally provided with a screw channel (11) in a penetrating way and used for inserting an extruder screw (10) connected with the end part of the screw extrusion mechanism (9) to realize transmission.
2. The screw extruder direct drive motor without the speed reducing mechanism according to claim 1, characterized in that: the output end (2) is provided with an involute external spline, and the connecting position of the thrust device shaft (7) and the output end (2) is provided with an involute internal spline.
3. The screw extruder direct drive motor without the speed reducing mechanism according to claim 1, characterized in that: an involute internal spline is arranged at the connecting position of the thrust device shaft (7) and the screw extrusion mechanism (9).
4. The screw extruder direct drive motor without the speed reducing mechanism according to claim 1, characterized in that: the motor body (3) adopts a large-torque permanent magnet synchronous motor.
5. The screw extruder direct drive motor without the speed reducing mechanism according to claim 1, characterized in that: the motor is characterized in that the bottom of the motor body (3) is provided with a ground foot (4), the motor body (3) is supported on the ground by the ground foot (4), and reverse thrust generated by rotation of the screw extrusion mechanism (9) is absorbed.
6. The screw extruder direct drive motor without the speed reducing mechanism according to claim 1, characterized in that: the motor shaft (6) is a hollow shaft, and the motor shaft (6) is supported on a motor front end cover (8) through a motor bearing (12).
7. The screw extruder direct drive motor without the speed reducing mechanism according to claim 1, characterized in that: the integrated thrust unit (1) further comprises a unit housing (13), the thrust unit shaft (7) being supported on the unit housing (13) by means of two thrust unit bearings (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121226026.XU CN214926896U (en) | 2021-06-02 | 2021-06-02 | Screw extruder direct drive motor without speed reducing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121226026.XU CN214926896U (en) | 2021-06-02 | 2021-06-02 | Screw extruder direct drive motor without speed reducing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214926896U true CN214926896U (en) | 2021-11-30 |
Family
ID=79054619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121226026.XU Active CN214926896U (en) | 2021-06-02 | 2021-06-02 | Screw extruder direct drive motor without speed reducing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214926896U (en) |
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2021
- 2021-06-02 CN CN202121226026.XU patent/CN214926896U/en active Active
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