阅读说明：本技术 一种塑料挤出机的减速箱 (Reduction gearbox of plastic extruder ) 是由 钟芳剑 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种塑料挤出机的减速箱,包括有壳体和设置在壳体上的传动机构；传动机构包括有第一传动机构和第二传动机构；第一传动机构包括有第一主动轮组件和第一从动轮组件；第二传动机构包括有第二主动轮组件和第二从动轮组件。本发明结构简单合理,通过在壳体上设置第一传动机构和第二传动机构,使得该塑料挤出机的减速箱在使用时可用于连接两个驱动电机,让工作人员可对第一传动机构或第二传动机构进行单独的调速,进而使得该塑料挤出机的减速箱可在塑料挤出机对不同塑料塑化挤出时使用,增加了塑料挤出机的使用面。(The invention discloses a reduction gearbox of a plastic extruder, which comprises a shell and a transmission mechanism arranged on the shell; the transmission mechanism comprises a first transmission mechanism and a second transmission mechanism; the first transmission mechanism comprises a first driving wheel assembly and a first driven wheel assembly; the second transmission mechanism comprises a second driving wheel component and a second driven wheel component. The plastic extruder speed reduction box is simple and reasonable in structure, the first transmission mechanism and the second transmission mechanism are arranged on the shell, so that the speed reduction box of the plastic extruder can be connected with the two driving motors when in use, workers can independently adjust the speed of the first transmission mechanism or the second transmission mechanism, the speed reduction box of the plastic extruder can be used when the plastic extruder plasticizes and extrudes different plastics, and the use range of the plastic extruder is increased.)

1. The utility model provides a plastic extruder's reducing gear box, is including the casing with set up drive mechanism on the casing which characterized in that:

the transmission mechanism comprises a first transmission mechanism and a second transmission mechanism;

the first transmission mechanism comprises a first driving wheel assembly and a first driven wheel assembly; the first driving wheel assembly comprises a first driving shaft which is rotatably arranged on the shell and a first driving wheel which is fixed on the first driving shaft; the first driven wheel assembly comprises a first driven shaft which is rotatably arranged on the shell and a first driven wheel which is fixed on the first driven shaft; the first driving wheel is in transmission connection with the first driven wheel;

the second transmission mechanism comprises a second driving wheel assembly and a second driven wheel assembly; the second driving wheel assembly comprises a second driving shaft which is rotatably arranged on the shell and a second driving wheel which is fixed on the second driving shaft; the second driven wheel assembly comprises a second driven shaft which is rotatably arranged on the shell and a second driven wheel which is fixed on the second driven shaft; the second driving wheel is in transmission connection with the second driven wheel.

2. The reduction gearbox of a plastic extruder according to claim 1, characterized in that:

the shell comprises a first shell, a second shell and a third shell which are detachably connected in sequence; the first transmission mechanism is disposed between the first housing and the second housing; the second transmission mechanism is disposed between the second housing and the third housing.

3. The reduction gearbox of a plastic extruder according to claim 2, characterized in that:

the first shell is connected with the second shell through screws, and the second shell is connected with the third shell through screws.

4. The reduction gearbox of a plastic extruder according to claim 2, characterized in that:

the first shell, the second shell and the third shell are sequentially detachably connected from top to bottom.

5. The reduction gearbox of plastic extruder according to claim 4, characterized in that:

a window is arranged at the top of the first shell, and a top cover is detachably connected in the window; a handle is arranged at the top of the top cover.

6. The reduction gearbox of a plastic extruder according to claim 1, characterized in that:

the first driving wheel assembly also comprises a first auxiliary driving wheel fixed on the first driving shaft;

a first driving wheel assembly and a second driving wheel assembly are connected between the first driving wheel assembly and the first driven wheel assembly;

the first driving wheel assembly comprises a first driving shaft which is rotatably arranged on the shell, and a first main driving wheel and a first auxiliary driving wheel which are fixed on the first driving shaft; the first main driving wheel is meshed with the first auxiliary driving wheel;

the second transmission wheel assembly comprises a second transmission shaft which is rotatably arranged on the shell, and a second main transmission wheel and a second auxiliary transmission wheel which are fixed on the second transmission shaft; the second main driving wheel is meshed with the first auxiliary driving wheel, and the second auxiliary driving wheel is meshed with the first driven wheel.

7. The reduction gearbox of a plastic extruder according to claim 1, characterized in that:

the second driving wheel component also comprises a second auxiliary driving wheel fixed on the second driving shaft;

a third driving wheel assembly is connected between the second driving wheel assembly and the second driven wheel assembly; the third transmission wheel assembly comprises a third transmission shaft which is rotatably arranged on the shell, and a third main transmission wheel and a third auxiliary transmission wheel which are fixed on the third transmission shaft; the third main driving wheel is meshed with the second auxiliary driving wheel, and the third auxiliary driving wheel is meshed with the second driven wheel.

8. The reduction gearbox of a plastic extruder according to claim 1, characterized in that:

the first driving wheel and the second driving wheel are both arranged outside the shell, and the first driving wheel and the second driving wheel are belt pulleys.

9. The reduction gearbox of a plastic extruder according to claim 1, characterized in that:

one end of the first driven shaft and one end of the second driven shaft extend out of the shell, and clamping grooves are formed in the ends, extending out of the shell, of the first driven shaft and the second driven shaft.

10. The reduction gearbox of a plastic extruder according to claim 1, characterized in that:

a bearing is arranged at the joint of the first driving shaft and the shell; a bearing is arranged at the joint of the second driven shaft and the shell; a bearing is arranged at the joint of the second driving shaft and the shell; and a bearing is arranged at the joint of the second driven shaft and the shell.

Technical Field

The invention relates to the technical field of plastic extruders, in particular to a reduction gearbox of a plastic extruder.

Background

Currently, there are many types of plastic extruders on the market. The existing plastic extruder generally comprises a driving motor, a reduction gearbox and a machine body, wherein a blanking rod and a feeding screw rod which are respectively connected with the reduction gearbox are arranged on the machine body, the reduction gearbox comprises a shell and a transmission mechanism which is arranged on the shell and consists of a plurality of synchronous wheels, and the transmission mechanism is respectively connected with the blanking rod and the feeding screw rod so as to drive the blanking rod and the feeding screw rod to synchronously rotate. However, the existing plastic extruder generally uses the driving motor to drive the transmission mechanism, and the transmission mechanism drives the blanking rod and the feeding screw to move simultaneously. However, this arrangement has a problem that, for example, when the plastic extruder plasticizes and extrudes different plastics, the rotation speeds of the feeding rod and the feeding screw need to be adjusted correspondingly to match each other, but since there is only one transmission mechanism in the prior art and the transmission mechanism drives the feeding rod and the feeding screw simultaneously, this results in that the rotation speeds of the feeding rod and the feeding screw cannot be adjusted separately by the driving motor, which causes a certain trouble in terms of production for users.

Disclosure of Invention

The invention aims to provide a reduction gearbox of a plastic extruder, which has a simple structure and is provided with two transmission mechanisms, and each transmission mechanism can independently adjust the rotating speed, so that the reduction gearbox of the plastic extruder can be used when the plastic extruder plasticizes and extrudes different plastics, and the use range of the plastic extruder is increased.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a reduction gearbox of a plastic extruder comprises a shell and a transmission mechanism arranged on the shell; the transmission mechanism comprises a first transmission mechanism and a second transmission mechanism; the first transmission mechanism comprises a first driving wheel assembly and a first driven wheel assembly; the first driving wheel assembly comprises a first driving shaft which is rotatably arranged on the shell and a first driving wheel which is fixed on the first driving shaft; the first driven wheel assembly comprises a first driven shaft which is rotatably arranged on the shell and a first driven wheel which is fixed on the first driven shaft; the first driving wheel is in transmission connection with the first driven wheel; the second transmission mechanism comprises a second driving wheel assembly and a second driven wheel assembly; the second driving wheel assembly comprises a second driving shaft which is rotatably arranged on the shell and a second driving wheel which is fixed on the second driving shaft; the second driven wheel assembly comprises a second driven shaft which is rotatably arranged on the shell and a second driven wheel which is fixed on the second driven shaft; the second driving wheel is in transmission connection with the second driven wheel.

For the additional structure of the above technical scheme, the following scheme is also included:

as a specific embodiment, the housing includes a first housing, a second housing and a third housing, which are detachably connected in sequence; the first transmission mechanism is disposed between the first housing and the second housing; the second transmission mechanism is disposed between the second housing and the third housing.

Furthermore, the first shell is connected with the second shell through screws, and the second shell is connected with the third shell through screws.

Further, first casing, second casing and third casing can dismantle the connection from top to bottom in proper order.

Furthermore, a window is arranged at the top of the first shell, and a top cover is detachably connected in the window; a handle is arranged at the top of the top cover.

As a specific embodiment, the first driving wheel assembly further comprises a first secondary driving wheel fixed on the first driving shaft; a first driving wheel assembly and a second driving wheel assembly are connected between the first driving wheel assembly and the first driven wheel assembly; the first driving wheel assembly comprises a first driving shaft which is rotatably arranged on the shell, and a first main driving wheel and a first auxiliary driving wheel which are fixed on the first driving shaft; the first main driving wheel is meshed with the first auxiliary driving wheel; the second transmission wheel assembly comprises a second transmission shaft which is rotatably arranged on the shell, and a second main transmission wheel and a second auxiliary transmission wheel which are fixed on the second transmission shaft; the second main driving wheel is meshed with the first auxiliary driving wheel, and the second auxiliary driving wheel is meshed with the first driven wheel.

As a specific embodiment, the second driving wheel assembly further comprises a second secondary driving wheel fixed on the second driving shaft; a third driving wheel assembly is connected between the second driving wheel assembly and the second driven wheel assembly; the third transmission wheel assembly comprises a third transmission shaft which is rotatably arranged on the shell, and a third main transmission wheel and a third auxiliary transmission wheel which are fixed on the third transmission shaft; the third main driving wheel is meshed with the second auxiliary driving wheel, and the third auxiliary driving wheel is meshed with the second driven wheel.

As a specific embodiment, the first driving wheel and the second driving wheel are both disposed outside the housing, and the first driving wheel and the second driving wheel are both belt pulleys.

As a specific embodiment, one end of the first driven shaft and one end of the second driven shaft extend out of the housing, and a locking groove is formed in each of the ends of the first driven shaft and the second driven shaft extending out of the housing.

As a specific embodiment, a bearing is arranged at the joint of the first driving shaft and the shell; a bearing is arranged at the joint of the second driven shaft and the shell; a bearing is arranged at the joint of the second driving shaft and the shell; and a bearing is arranged at the joint of the second driven shaft and the shell.

The invention has the beneficial effects that:

the plastic extruder speed-regulating device is simple and reasonable in structure, the first transmission mechanism and the second transmission mechanism are arranged on the shell, so that the reduction gearbox of the plastic extruder can be used for connecting two driving motors when in use, workers can carry out independent speed regulation on the first transmission mechanism or the second transmission mechanism, the reduction gearbox of the plastic extruder can be used when the plastic extruder is used for plasticizing and extruding different plastics, and the use range of the plastic extruder is increased.

The invention (II) enables a worker to conveniently overhaul and maintain the first transmission mechanism or the second transmission mechanism by arranging the shells into the first shell, the second shell and the third shell which are detachably connected, arranging the first transmission mechanism between the first shell and the second shell and arranging the second transmission mechanism between the second shell and the third shell.

The transmission mechanism can be conveniently observed by workers through the window, and the top cover can cover the window to prevent pollutants from entering the shell to pollute the transmission mechanism, so that the service life of the transmission mechanism is prolonged.

Drawings

FIG. 1 is a first general structural diagram of the present invention;

FIG. 2 is a second overall structural schematic of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is an exploded view of the second embodiment of the present invention;

FIG. 5 is a schematic structural view of the transmission mechanism of the present invention;

FIG. 6 is a schematic structural view of a first transmission mechanism of the present invention;

fig. 7 is a schematic structural view of a second transmission mechanism of the present invention.

Reference numerals:

1. a housing; 101. a first housing; 102. a second housing; 103. a third housing; 2. a first drive wheel assembly; 21. a first drive shaft; 22. a first drive wheel; 23. a first secondary driving wheel; 3. a first driven wheel assembly; 31. a first driven shaft; 32. a first driven wheel; 4. a second drive wheel assembly; 41. a second driving shaft; 42. a second drive wheel; 43. a second secondary driving wheel; 5. a second driven wheel assembly; 51. a second driven shaft; 52. a second driven wheel; 6. a first drive wheel assembly; 61. a first drive shaft; 62. a first main transmission wheel; 63. a first secondary transmission wheel; 7. a second drive wheel assembly; 71. a second drive shaft; 72. a second main transmission wheel; 73. a second sub-transmission wheel; 8. a third drive wheel assembly; 81. a third transmission wheel; 82. a third main transmission wheel; 83. a third auxiliary transmission wheel; 9. a clamping groove; 10. a bearing; 11. a top cover; 12. a handle.

Detailed Description

The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.

As shown in fig. 1-7, a reduction gearbox of a plastic extruder comprises a shell 1 and a transmission mechanism arranged on the shell 1; the transmission mechanism comprises a first transmission mechanism and a second transmission mechanism; the first transmission mechanism comprises a first driving wheel assembly 2 and a first driven wheel assembly 3; the first driving wheel assembly 2 comprises a first driving shaft 21 which is rotatably arranged on the shell 1 and a first driving wheel 22 which is fixed on the first driving shaft 21; the first driven wheel assembly 3 comprises a first driven shaft 31 which is rotatably arranged on the shell 1 and a first driven wheel 32 which is fixed on the first driven shaft 31; the first driving wheel 22 is in transmission connection with the first driven wheel 32; the second transmission mechanism comprises a second driving wheel assembly 4 and a second driven wheel assembly 5; the second driving wheel assembly 4 comprises a second driving shaft 41 which is rotatably arranged on the shell 1 and a second driving wheel 42 which is fixed on the second driving shaft 41; the second driven wheel assembly 5 comprises a second driven shaft 51 rotatably arranged on the shell 1 and a second driven wheel 52 fixed on the second driven shaft 51; the second driving wheel 42 is in transmission connection with a second driven wheel 52. The reduction gearbox of the plastic extruder is provided with the first transmission mechanism and the second transmission mechanism, the first transmission mechanism is respectively connected with one driving motor and the blanking rod, and the second transmission mechanism is respectively connected with the other driving motor and the feeding screw rod when the reduction gearbox is used, so that a worker can separately adjust the rotating speeds of the blanking rod and the feeding screw rod by adjusting the two driving motors, namely the reduction gearbox can be suitable for plasticizing extrusion of different plastics; the first driving wheel 22 and the second driving wheel 42 are correspondingly connected with two driving motors, the first driven shaft 31 and the second driven shaft 51 are respectively connected with the blanking rod and the feeding screw, and then the first driven shaft 31 and the second driven shaft 51 are enabled to rotate through the transmission between the first driving wheel 22 and the first driven wheel 32 and the transmission between the second driving wheel 42 and the second driven wheel 52.

As shown in fig. 2 and 3, the housing 1 includes a first housing 101, a second housing 102, and a third housing 103, which are detachably connected in sequence; the first transmission mechanism is disposed between the first casing 101 and the second casing 102; the second transmission mechanism is disposed between the second housing 102 and the third housing 103. Preferably, the first housing 101, the second housing 102 and the third housing 103 are detachably connected in sequence from top to bottom, but those skilled in the art should understand that the first housing 101, the second housing 102 and the third housing 103 may also be detachably connected in sequence from left to right or from right to left. As for the arrangement of the first transmission mechanism and the second transmission mechanism, the first driving shaft 21 and the first driven shaft 31 are disposed in the first housing 101 and the second housing 102 with the first driven shaft 32 located in the inner cavity of the housing 1, while the second driving shaft 41 and the second driven shaft 51 are disposed between the second housing 102 and the third housing 103 with the second driven shaft 52 located in the inner cavity of the housing 1. Through the arrangement, a worker can conveniently overhaul and maintain the first transmission mechanism and the second transmission mechanism on the shell 1, particularly when the first transmission mechanism needs to be overhauled and maintained, the first transmission mechanism can be exposed by detaching the first shell 101, so that the first transmission mechanism can be overhauled and maintained fast and effectively, time is saved, when the second transmission mechanism needs to be overhauled and maintained, the second transmission mechanism can be exposed by detaching the third shell 103, so that the second transmission mechanism can be overhauled and maintained fast and effectively, and time is saved. Specifically, the first casing 101, the second casing 102 and the third casing 103 are in fit connection, so that the sealing performance of the casing 1 is better, and the service life of the transmission mechanism is prolonged.

Preferably, the first casing 101 and the second casing 102 are connected by screws, and the second casing 102 and the third casing 103 are also connected by screws. Through the arrangement, the first shell 101, the second shell 102 and the third shell 103 can be firmly connected, and meanwhile, the disassembly and the assembly can be greatly facilitated.

Preferably, a window is opened at the top of the first housing 101, and a top cover 11 is detachably connected to the window; preferably, a grip 12 is provided on the top of the top cover 11. The window is arranged, so that workers can conveniently observe the interior of the reduction gearbox of the plastic extruder, and accidents are prevented; the top cover 11 can be used for covering the window to prevent sundries or rainwater and the like from entering the shell 1; the handle 12 is provided to facilitate the worker to pull up the top cover 11 for observation.

As shown in fig. 6, the first driving wheel assembly 2 further comprises a first secondary driving wheel 23 fixed on the first driving shaft 21; a first driving wheel assembly 6 and a second driving wheel assembly 7 are also connected between the first driving wheel assembly 2 and the first driven wheel assembly 3; specifically, the first driving wheel assembly 6 comprises a first driving shaft 61 rotatably arranged on the housing 1, and a first main driving wheel 62 and a first auxiliary driving wheel 63 fixed on the first driving shaft 61; the first main transmission wheel 62 is meshed with the first secondary driving wheel 23; the second transmission wheel assembly 7 comprises a second transmission shaft 71 which is rotatably arranged on the shell 1, and a second main transmission wheel 72 and a second auxiliary transmission wheel 73 which are fixed on the second transmission shaft 71; the second main drive wheel 72 meshes with the first secondary drive wheel 63 and the second secondary drive wheel 73 meshes with the first driven wheel 32. Specifically, when in use, the first secondary driving wheel 23, the first driving wheel assembly 6 and the second driving wheel assembly 7 are all used for transmission between the first driving wheel assembly 2 and the first driven wheel assembly 3. Of course, the first transmission shaft 61 and the second transmission shaft 71 are both disposed between the first casing 101 and the second casing 102, and the first secondary driving wheel 32, the first main transmission wheel 62, the first secondary transmission wheel 63, the second main transmission wheel 72 and the second secondary transmission wheel 73 are all located in the inner cavity of the casing 1.

As shown in fig. 7, the second driving wheel assembly 4 further includes a second secondary driving wheel 43 fixed to the second driving shaft 41; a third transmission wheel assembly 8 is connected between the second driving wheel assembly 4 and the second driven wheel assembly 5; the third transmission wheel assembly 8 comprises a third transmission shaft 81 which is rotatably arranged on the shell 1, and a third main transmission wheel 82 and a third transmission wheel 83 which are fixed on the third transmission shaft 81; the third primary drive wheel 82 meshes with the second secondary driving wheel 43 and the third secondary drive wheel 83 meshes with the second driven wheel 52. In particular, in use, the second secondary drive wheel assembly 43 and the third drive wheel assembly 8 are used to drive between the second drive wheel assembly 4 and the second driven wheel assembly 5. Of course, the third transmission shaft 81 is disposed between the second housing 102 and the third housing 103, while the third main transmission wheel 82 and the third secondary transmission wheel 83 are located in the inner cavity of the housing 1.

Specifically, the first driving wheel 22 and the second driving wheel 42 are both disposed outside the housing 1, and the first driving wheel 22 and the second driving wheel 42 are both belt pulleys. Through above setting can make things convenient for first action wheel 22 and second action wheel 42 to be connected with driving motor through the belt, and this kind of design can make things convenient for the installation of motor, does not need driving motor to also can carry out the transmission near drive mechanism, and simultaneously, this kind of drive mode is more stable effective.

As shown in fig. 1, one ends of the first driven shaft 31 and the second driven shaft 51 extend out of the housing 1, and the detent grooves 9 are provided on both ends of the first driven shaft 31 and the second driven shaft 51 extending out of the housing 1. Through the arrangement, the blanking rod and the feeding screw can be connected conveniently, and particularly, when the blanking device is used, the blanking rod and the feeding screw are clamped with the clamping grooves 9 on the first driven shaft 31 and the second driven shaft 51 respectively.

As shown in fig. 3, 4, 6 and 7, a bearing 10 is provided at the connection of the first motive shaft 21 with the casing 1; a bearing 10 is arranged at the joint of the second driven shaft 31 and the shell 1; a bearing 10 is arranged at the joint of the second driving shaft 41 and the shell 1; a bearing 10 is provided at the connection of the second driven shaft 51 and the housing 1. Specifically, a clamping groove for clamping the bearing 10 is provided between the first housing 101 and the second housing 102 and between the second housing 102 and the third housing 103, so that the first transmission mechanism and the second transmission mechanism can stably operate.

The first secondary driving wheel 23, the first driven wheel 32, the second secondary driving wheel 43, the second driven wheel 52, the first main transmission wheel 62, the first secondary transmission wheel 63, the second main transmission wheel 72, the second secondary transmission wheel 73, the third main transmission wheel 82 and the third secondary transmission wheel 83 are all gears.

The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.