CN213000015U - Stirring reaction device for polylactic acid production - Google Patents
Stirring reaction device for polylactic acid production Download PDFInfo
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- CN213000015U CN213000015U CN202021835389.9U CN202021835389U CN213000015U CN 213000015 U CN213000015 U CN 213000015U CN 202021835389 U CN202021835389 U CN 202021835389U CN 213000015 U CN213000015 U CN 213000015U
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- stirring shaft
- polylactic acid
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Abstract
The utility model relates to the technical field of polylactic acid production, in particular to a stirring reaction device for polylactic acid production, which comprises a tank body, a stirring motor, a first stirring shaft and a first stirring blade, wherein the stirring motor is arranged at the top of the tank body; the bottom end of the stirring shaft is rotatably connected with a connecting shaft; the connecting shaft is detachably connected with a second stirring shaft; the first stirring shaft is connected with the second stirring shaft through a transmission mechanism and drives the second stirring shaft to rotate in the opposite direction; and a second stirring blade is fixedly arranged at the lower part of the second stirring shaft. Compared with the prior art, the first stirring shaft drives the second stirring shaft to rotate in the opposite direction through the transmission mechanism, so that the raw materials are fully stirred, and the stirring efficiency is improved; and the second stirring shaft is detachably connected with the connecting shaft, so that the second stirring shaft is convenient to detach, clean and install.
Description
Technical Field
The utility model relates to a polylactic acid production technical field specifically discloses a stirring reaction device is used in polylactic acid production.
Background
Polylactic acid is also called polylactide, is a polymer obtained by polymerizing lactic acid serving as a main raw material, belongs to a polyester family, is fully renewable in the source of the polylactic acid raw material, is pollution-free in the production process, can be biodegraded, realizes the circulation in nature, and is an ideal green high polymer material.
In the prior art, when polylactic acid is produced, an intermittent stirring reactor is often used to react raw materials in a stirring tank so as to generate the polylactic acid. During the period, the intermittent stirring reactor provides great help for the production of the polylactic acid, but the phenomena of insufficient and uneven stirring are easily caused, the raw materials cannot be converted into required products to the maximum extent, part of the polylactic acid cannot reach the qualified rate, and certain influence is brought to enterprise benefits.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a stirring reaction device for polylactic acid production, wherein a first stirring shaft of the device drives a second stirring shaft to rotate in opposite directions through a transmission mechanism, so that raw materials are fully stirred, and the stirring efficiency is improved; and the second stirring shaft is detachably connected with the connecting shaft, so that the second stirring shaft is convenient to detach, clean and install.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the stirring reaction device for polylactic acid production comprises a tank body, a stirring motor, a first stirring shaft and a first stirring blade, wherein the stirring motor is arranged at the top of the tank body; the bottom end of the stirring shaft is rotatably connected with a connecting shaft; the connecting shaft is detachably connected with a second stirring shaft; the first stirring shaft is connected with the second stirring shaft through a transmission mechanism and drives the second stirring shaft to rotate in the opposite direction; and a second stirring blade is fixedly arranged at the lower part of the second stirring shaft. The first stirring shaft drives the second stirring shaft to rotate in the opposite direction through the transmission mechanism, so that the raw materials are fully stirred, and the stirring efficiency is improved; and the second stirring shaft is detachably connected with the connecting shaft, so that the second stirring shaft is convenient to detach, clean and install.
Preferably, the transmission mechanism comprises a first gear, a second gear, a third gear, a shaft and a shaft sleeve; the first gear is fixedly arranged on the first stirring shaft; the second gear is fixedly arranged on the second stirring shaft; the gear III is meshed with the gear I and the gear II; the third gear is fixedly arranged on the shaft; the shaft is rotationally arranged in the shaft sleeve; the shaft sleeve is fixedly arranged on the inner wall of the tank body. The third gear can drive the second gear to rotate in the opposite direction through the third gear, and the stirring effect is improved. The arrangement of the shaft sleeve ensures the stability of the rotation of the gear.
Preferably, one end of the connecting shaft is provided with a bearing through a gland; the bearing is arranged in the bearing seat; the bearing block is fixedly arranged on the first stirring shaft. The movement of the bearing on the connecting shaft is limited by the arrangement of the gland, and the rotary connection of the first stirring shaft and the connecting shaft is realized by the arrangement of the bearing seat.
Preferably, the other end of the connecting shaft is provided with two locking blocks; the locking blocks are symmetrically arranged on the outer wall of the connecting shaft; the center of the stirring shaft II is provided with a groove, the bottom of the groove is provided with a spring in a matching mode with the connecting shaft, and the top of the groove is arranged in a matching mode with the connecting shaft and the locking block. The locking block can be inserted into the groove in a matching way.
Preferably, the recess fit with the locking piece in is provided with U type groove, and the locking piece inserts the recess in the back, and compression spring rotates certain angle behind the locking piece contact U type bottom of the groove portion, and the locking piece slides in U type groove, and the other end closely sets up the other end top in U type groove under the effect of spring, has guaranteed the firm of connecting axle and (mixing) shaft two connection, and the installation of convenient dismantlement.
Preferably, the first gear, the second gear and the third gear are bevel gears, which is beneficial for the meshing arrangement.
The utility model has the advantages as follows:
in the above scheme, the utility model provides a stirring reaction device for polylactic acid production, including a tank body, a stirring motor, a first stirring shaft and a first stirring blade, wherein the stirring motor is arranged at the top of the tank body, the output shaft of the stirring motor is connected with the first stirring shaft, the first stirring blade is arranged on the first stirring shaft, and the stirring reaction device further comprises a connecting shaft, a transmission mechanism, a second stirring shaft and a second stirring blade; the bottom end of the stirring shaft is rotatably connected with a connecting shaft; the connecting shaft is detachably connected with a second stirring shaft; the first stirring shaft is connected with the second stirring shaft through a transmission mechanism and drives the second stirring shaft to rotate in the opposite direction; and a second stirring blade is fixedly arranged at the lower part of the second stirring shaft. Compared with the prior art, the first stirring shaft drives the second stirring shaft to rotate in the opposite direction through the transmission mechanism, so that the raw materials are fully stirred, and the stirring efficiency is improved; and the second stirring shaft is detachably connected with the connecting shaft, so that the second stirring shaft is convenient to detach, clean and install.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the stirring motor and the tank body removed according to the embodiment of the present invention;
fig. 3 is a schematic structural view of a connecting shaft according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of the connection between the connection shaft and the second stirring shaft in the embodiment of the present invention;
FIG. 5 is a schematic view of a partially cut-away structure of a second stirring shaft in the embodiment of the present invention;
description of reference numerals:
1-tank body, 2-stirring motor, 3-stirring shaft I, 4-stirring blade I, 5-connecting shaft, 6-stirring shaft II, 7-stirring blade II, 8-gear I, 9-gear II, 10-gear III, 11-shaft, 12-shaft sleeve, 13-gland, 14-bearing, 15-bearing seat, 16-locking block, 17-groove, 18-spring and 19-U-shaped groove.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1-2, a stirring reaction device for polylactic acid production comprises a tank body 1, a stirring motor 2, a first stirring shaft 3 and a first stirring blade 4, wherein the stirring motor 2 is arranged at the top of the tank body 1, an output shaft of the stirring motor 2 is connected with the first stirring shaft 3, and the first stirring blade 4 is arranged on the first stirring shaft 3, and further comprises a connecting shaft 5, a transmission mechanism, a second stirring shaft 6 and a second stirring blade 7; the bottom end of the stirring shaft I3 is rotatably connected with a connecting shaft 5; the connecting shaft 5 is detachably connected with a stirring shaft II 6; the stirring shaft I3 is connected with the stirring shaft II 6 through a transmission mechanism and drives the stirring shaft II 6 to rotate in the opposite direction; the lower part of the stirring shaft II 6 is fixedly provided with a stirring blade II 7. The first stirring shaft 3 drives the second stirring shaft 6 to rotate in the opposite direction through the transmission mechanism, so that the raw materials are fully stirred, and the stirring efficiency is improved; through the detachable connection of the second stirring shaft 6 and the connecting shaft 5, the second stirring shaft 6 is convenient to detach, clean and install.
The transmission mechanism comprises a first gear 8, a second gear 9, a third gear 10, a shaft 11 and a shaft sleeve 12; the first gear 8 is fixedly arranged on the first stirring shaft 3; the second gear 9 is fixedly arranged on the second stirring shaft 6; gear three 10 engages gear one 8 and gear two 9; a third gear 10 is fixedly arranged on the shaft 11; the shaft 11 is arranged in the shaft sleeve 12 through a bearing; the shaft sleeve 12 is fixedly arranged on the inner wall of the tank body 1. The gear III 10 can drive the gear II 9 to rotate in the opposite direction through the gear I8, and the stirring effect is improved. The arrangement of the shaft sleeve 12 ensures the stability of the rotation of the gear wheel III 10.
As shown in fig. 3, one end of the connecting shaft 5 is provided with a bearing 14 through a gland 13; the bearing 14 is arranged in the bearing seat 15; the bearing seat 15 is fixedly arranged on the stirring shaft I3. The movement of the bearing 14 on the connecting shaft 5 is limited by the arrangement of the gland 13, and the rotary connection of the stirring shaft I3 and the connecting shaft 5 is realized by the arrangement of the bearing seat 15.
As shown in fig. 2, 4 and 5, the other end of the connecting shaft 5 is provided with two locking blocks 16; the locking blocks 16 are symmetrically arranged on the outer wall of the connecting shaft 5; the center of the second stirring shaft 6 is provided with a groove 17, the bottom of the groove 17 is provided with a spring 18 in a matching way with the connecting shaft 5, and the top of the groove 17 is provided with the connecting shaft 5 and the locking block 16 in a matching way. A U-shaped groove 19 is provided in the groove 17 in cooperation with the locking block 16. After locking block 16 inserted in recess 17, compression spring 18 rotated certain angle behind the locking block 16 contact U type groove 19 bottom, and locking block 16 slides into the U type groove 19 other end, under spring 18's effect, has closely set up the other end top at U type groove 19, has guaranteed the firm of connecting axle 5 and two 6 connections of (mixing) shaft, and the installation of conveniently dismantling.
In the above arrangement, the first gear 8, the second gear 9 and the third gear 10 are bevel gears, which is favorable for the meshing arrangement.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A stirring reaction device for polylactic acid production comprises a tank body (1), a stirring motor (2), a first stirring shaft (3) and a first stirring blade (4), wherein the stirring motor (2) is arranged at the top of the tank body (1), an output shaft of the stirring motor (2) is connected with the first stirring shaft (3), and the first stirring blade (4) is arranged on the first stirring shaft (3), and is characterized by further comprising a connecting shaft (5), a transmission mechanism, a second stirring shaft (6) and a second stirring blade (7); the bottom end of the stirring shaft I (3) is rotatably connected with a connecting shaft (5); the connecting shaft (5) is detachably connected with a second stirring shaft (6); the first stirring shaft (3) is connected with the second stirring shaft (6) through a transmission mechanism and drives the second stirring shaft (6) to rotate in the opposite direction; and a second stirring blade (7) is fixedly arranged at the lower part of the second stirring shaft (6).
2. The stirring reaction device for polylactic acid production according to claim 1, wherein the transmission mechanism comprises a first gear (8), a second gear (9), a third gear (10), a shaft (11) and a shaft sleeve (12); the first gear (8) is fixedly arranged on the first stirring shaft (3); the second gear (9) is fixedly arranged on the second stirring shaft (6); the gear three (10) is meshed with the gear one (8) and the gear two (9); the third gear (10) is fixedly arranged on the shaft (11); the shaft (11) is rotatably arranged in the shaft sleeve (12); the shaft sleeve (12) is fixedly arranged on the inner wall of the tank body (1).
3. The stirring reaction device for polylactic acid production according to claim 1, wherein one end of the connecting shaft (5) is provided with a bearing (14) through a gland (13); the bearing (14) is arranged in the bearing seat (15); the bearing seat (15) is fixedly arranged on the stirring shaft I (3).
4. The stirring reaction device for polylactic acid production according to claim 3, wherein the other end of the connecting shaft (5) is provided with two locking blocks (16); the locking blocks (16) are symmetrically arranged on the outer wall of the connecting shaft (5); the center of the second stirring shaft (6) is provided with a groove (17), the bottom of the groove (17) is provided with a spring (18) in a matching mode with the connecting shaft (5), and the top of the groove (17) is arranged in a matching mode with the connecting shaft (5) and the locking block (16).
5. The stirring reaction device for polylactic acid production according to claim 4, wherein the groove (17) is provided with a U-shaped groove (19) therein in cooperation with the locking block (16).
6. The stirring reaction device for polylactic acid production according to claim 1, wherein the first gear (8), the second gear (9) and the third gear (10) are bevel gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021835389.9U CN213000015U (en) | 2020-08-28 | 2020-08-28 | Stirring reaction device for polylactic acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021835389.9U CN213000015U (en) | 2020-08-28 | 2020-08-28 | Stirring reaction device for polylactic acid production |
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| Publication Number | Publication Date |
|---|---|
| CN213000015U true CN213000015U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021835389.9U Active CN213000015U (en) | 2020-08-28 | 2020-08-28 | Stirring reaction device for polylactic acid production |
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| CN (1) | CN213000015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274938A (en) * | 2021-05-10 | 2021-08-20 | 深圳市真味生物科技有限公司 | Cleaning device for stirring equipment |
-
2020
- 2020-08-28 CN CN202021835389.9U patent/CN213000015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274938A (en) * | 2021-05-10 | 2021-08-20 | 深圳市真味生物科技有限公司 | Cleaning device for stirring equipment |
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