CN217752659U

CN217752659U - Extrusion device

Info

Publication number: CN217752659U
Application number: CN202222151705.6U
Authority: CN
Inventors: 何海潮; 陈庆龙
Original assignee: Suzhou Jinwei Chemical Fiber Equipment Co ltd
Current assignee: Suzhou Jinwei Chemical Fiber Equipment Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-08
Anticipated expiration: 2032-08-16

Abstract

The application discloses an extrusion device, which comprises an extrusion mechanism, a speed reducer, a water separator and a water tank communicated with the water separator, wherein the speed reducer comprises a rotating shaft in transmission connection with the extrusion mechanism and a bearing assembly sleeved on the rotating shaft, the bearing assembly comprises a bearing coaxially sleeved on the rotating shaft, a bearing seat coaxially sleeved on the bearing and an end cover arranged at the end part of the rotating shaft, a first cooling flow passage communicated with the water separator in a fluid mode is arranged in the bearing seat, the first cooling flow passage comprises a first water inlet and a first water outlet, and the water separator comprises a second water outlet communicated with the first water inlet and a second water inlet communicated with the first water outlet; the bearing block of the bearing assembly in the speed reducer is provided with the first cooling flow channel communicated with the water distributor, water in the water distributor is conveyed into the bearing block by the water distributor so as to take away heat of the bearing arranged on the rotating shaft, the heat dissipation effect is greatly improved, the service life of the bearing is prolonged, the structure is simple, regular maintenance is not needed, and the cost is reduced.

Description

Extrusion device

Technical Field

The application relates to the technical field of plastic extrusion equipment, in particular to an extrusion device.

Background

The extrusion device comprises a speed reducer and an extrusion screw, a bearing is arranged in the speed reducer, the bearing is installed in a bearing seat, the bearing needs to be lubricated, the heat dissipation of the bearing is facilitated, and the abrasion is reduced. In the current bearing mounting structure, an integral lubrication mode is adopted, the heat dissipation effect is poor, and regular maintenance is needed.

Disclosure of Invention

The purpose of this application is to solve among the prior art not good, the short problem of bearing life of bearing heat dissipation.

In order to achieve the purpose, the technical scheme is as follows: the utility model provides an extrusion device, including extrusion mechanism, speed reducer, water knockout drum and with the water tank of water knockout drum fluid intercommunication, the speed reducer include with the transmission of extrusion mechanism be connected pivot and cover establish pivot epaxial bearing assembly, bearing assembly include coaxial cover establish pivot epaxial bearing, coaxial cover establish the bearing on the bearing and set up the end cover of the tip of pivot, the bearing frame in be provided with the first cooling runner of water knockout drum fluid intercommunication, first cooling runner include first water inlet and first delivery port, the water knockout drum include with the second delivery port of first water inlet intercommunication and with the second water inlet of first delivery port intercommunication.

In the above technical solution, it is further preferable that the bearing seat includes a cylinder and a seat body connected to an end of the cylinder, and an outer diameter of the seat body is larger than an outer diameter of the cylinder.

In the above technical solution, it is further preferable that the first cooling flow passage includes a first portion formed in the cylinder and a second portion formed in the seat, the first portion is communicated with the second portion, the first portion has a first width, the second portion has a second width, and the second width is greater than the first width.

In the above technical solution, it is further preferable that the bearing housing has a first through hole for accommodating the bearing and at least a part of the end cap, and the first portion and the second portion are both annularly disposed in the bearing housing and coaxially disposed with the first through hole.

In the above technical solution, it is further preferable that the end cover is connected to the first through hole in a fitting manner, and a gap is provided between the end cover and an end of the rotary shaft sleeve where the bearing is provided.

In the above technical solution, it is further preferable that the extrusion device further includes a water jacket sleeved on the rotating shaft, the water jacket includes a second through hole for accommodating at least a portion of the rotating shaft and a second cooling flow channel in fluid communication with the water separator, and the second cooling flow channel is annular and is disposed coaxially with the second through hole.

Compared with the prior art, the application has the following beneficial effects:

the bearing block of the bearing assembly in the speed reducer is provided with the first cooling flow channel communicated with the water distributor, water in the water distributor is conveyed into the bearing block by the water distributor so as to take away heat of the bearing arranged on the rotating shaft, the heat dissipation effect is greatly improved, the service life of the bearing is prolonged, the structure is simple, regular maintenance is not needed, and the cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an extrusion apparatus according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the internal structure of the reducer in FIG. 1;

FIG. 3 is a schematic structural view of the water jacket of FIG. 1;

fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 3.

Wherein: 1. an extrusion mechanism; 2. a speed reducer; 21. a rotating shaft; 22. a bearing assembly; 221. a bearing; 222. a bearing seat; 2220. a first cooling flow passage; 22201. a first portion; 22202. a second portion; 2221. a first water inlet; 2222. a first water outlet; 2223. a barrel; 2224. a base body; 223. an end cap; 2231. a cover plate; 2232. a connecting portion; 3. a water separator; 31. a second water inlet; 32. a second water outlet; 33. a third water inlet; 34. a third water outlet; 4. a water tank; 5. a water jacket; 50. a second through hole; 51. a second cooling flow channel; 61. a first conduit; 62. a second conduit; 63. a third pipeline; 64. a fourth conduit.

Detailed Description

For the purpose of explaining the technical contents, structural features, attained objects and effects of the present application in detail, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the embodiments described are only a part of the embodiments of the present application, and not all of the embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate.

The embodiment of the application provides an extrusion device, as shown in fig. 1, the extrusion device comprises an extrusion mechanism 1, a speed reducer 2 in transmission connection with the extrusion mechanism 1, a water separator 3 in fluid communication with the extrusion mechanism 1 and the speed reducer 2 respectively, and a water tank 4 in fluid communication with the water separator 3.

As shown in fig. 1 and 2, the extruding mechanism 1 includes an extruding screw (not shown in the figures), and the speed reducer 2 includes a rotating shaft 21 in driving connection with the extruding screw and a bearing assembly 22 disposed at an end of the rotating shaft 21 far from the extruding screw.

The bearing assembly 22 comprises a bearing 221 coaxially sleeved on the rotating shaft 21, a bearing seat 222 arranged outside the bearing 221, and an end cover 223 arranged at one end of the rotating shaft 21 far away from the extrusion screw. The bearing housing 222 has a first through hole extending in the axial direction of the rotary shaft 21, and the bearing 221 and at least a part of the end cap 223 are received in the first through hole; the end cover 223 comprises a cover plate 2231 and a connecting part 2232 arranged on one side of the cover plate 2231 close to the bearing 221, the connecting part 2232 is annular, the outer surface of the connecting part 2232 abuts against the first through hole, and the end cover 223 is connected with the first through hole of the bearing seat 222 in a matching manner; a gap is formed between the connecting portion 2232 and the end of the rotating shaft 21, so that the rotating shaft 21 can freely rotate around its axis and is inserted into the bearing 221.

The inside of the bearing housing 222 forms a first cooling flow passage 2220 in fluid communication with the water separator 3, and the first cooling flow passage 2220 includes a first water inlet 2221 and a first water outlet 2222, and is not in communication with the first through hole. The water separator 3 has a second water inlet 31 and a second water outlet 32, the second water inlet 31 is in fluid communication with the first water outlet 2222 through a second pipe 62, and the second water outlet 32 is in fluid communication with the first water inlet 2221 through a first pipe 61; the water in the water tank 4 enters the first cooling flow channel 2220 through the first water inlet 2221 from the second water outlet 32, and after the water exchanges heat with the bearing seat 222 and the bearing 221 in the first cooling flow channel 2220, the water flows back to the water separator 3 through the second water inlet 31 from the first water outlet 2222, so that the heat on the bearing seat 222 and the bearing 221 is taken away, the purpose of cooling the bearing 221 and the rotating shaft 21 is achieved, the service life of the bearing is prolonged, the regular maintenance is not needed, and the cost is reduced.

The bearing housing 222 has a cylindrical body 2223 and a housing body 222 provided at one end of the cylindrical body 22234, the outer diameter of the seat body 2224 is greater than the outer diameter of the cylinder 2223, and in the embodiment of the present application, the cylinder 2223 and the seat body 2224 are an integrally formed component. The cylinder 2223 and the seat 2224 are hollow inside, the first cooling flow path 2220 includes a first portion 22201 formed by the hollow portion of the cylinder 2223 and a second portion 22202 formed by the hollow portion of the seat 2224, and the first portion 22201 and the second portion 22202 are annularly and coaxially arranged with the first through hole, so that the cooling area is increased, and the heat dissipation effect on the bearing 221 is improved; the first portion 22201 has a first width D ₁ The second portion 22202 has a second width D ₂ ，D ₂ ＞D ₁ 。

As shown in fig. 1, 3 and 4, the extrusion screw and the rotating shaft 21 are coaxially arranged, and a water jacket 5 in fluid communication with the water separator 3 is sleeved at the joint of the extrusion screw and the rotating shaft 21, the water jacket 5 has a second through hole 50 extending in the axial direction of the rotating shaft 21, and an end portion of the extrusion screw and an end portion of the rotating shaft 21 far away from the bearing assembly 22 are both accommodated in the second through hole 50. The hollow part of the water jacket 5 forms a second cooling flow passage 51 in a ring shape, and the second cooling flow passage 51 is arranged coaxially with the second through hole 50; the water separator 3 further includes a third water inlet 33 and a third water outlet 34, the third water inlet 33 is in fluid communication with the second cooling flow passage 51 through a third pipe 63, and the third water outlet 34 is in fluid communication with the second cooling flow passage 51 through a fourth pipe 64. The water in the water tank 4 is conveyed into the second cooling flow passage 51 through the third water outlet 34 of the water separator 3, and the water exchanges heat with the rotating shaft 21 and the extrusion screw rod accommodated in the second through hole 50 in the second cooling flow passage 51, so that the heat at the joint of the rotating shaft 21 and the extrusion screw rod is taken away, real-time cooling is performed, and the heat dissipation effect is improved.

The bearing seat 222 of the bearing component 22 in the speed reducer 2 is provided with the first cooling flow channel 2220 communicated with the water distributor 3 through fluid, the water distributor 3 conveys water in the water tank 4 into the bearing seat 222 so as to take away heat of the bearing 221 sleeved on the rotating shaft 21, the heat dissipation effect is greatly improved, the service life of the bearing 221 is prolonged, the structure is simple, regular maintenance is not needed, and the cost is reduced.

The foregoing shows and describes the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the application, and that various changes and modifications may be made without departing from the spirit and scope of the application, which is defined by the appended claims, the specification, and equivalents thereof.

Claims

1. The utility model provides an extrusion device, characterized in that, including extrusion mechanism (1), speed reducer (2), water knockout drum (3) and with water tank (4) of water knockout drum (3) fluid intercommunication, speed reducer (2) including with extrusion mechanism (1) transmission be connected pivot (21) and cover establish pivot (21) on bearing assembly (22), bearing assembly (22) including coaxial cover establish pivot (21) on bearing (221), coaxial cover establish bearing frame (222) on bearing (221) and set up and be in end cover (223) of the tip of pivot (21), bearing frame (222) in be provided with water knockout drum (3) fluid intercommunication first cooling runner (2220), first cooling runner (2220) include first water inlet (2221) and first water outlet (2222), water knockout drum (3) include with second water outlet (32) of first water inlet (2221) intercommunication and with the second water inlet (31) of first water outlet (2222) intercommunication.

2. An extrusion apparatus as claimed in claim 1, wherein the bearing housing (222) comprises a cylinder (2223) and a housing (2224) connected to an end of the cylinder (2223), and an outer diameter of the housing (2224) is larger than an outer diameter of the cylinder (2223).

3. An extrusion apparatus as defined in claim 2, wherein said first cooling flow path (2220) includes a first portion formed in said barrel (2223) and a second portion formed in said seat (2224), said first portion communicating with said second portion, said first portion having a first width, said second portion having a second width, said second width being greater than said first width.

4. An extrusion apparatus according to claim 3, wherein the bearing housing (222) has a first through-hole for receiving the bearing (221) and at least part of the end cap (223), the first and second portions each being annularly disposed within the bearing housing (222) and coaxially disposed with the first through-hole.

5. An extrusion apparatus according to claim 4, wherein the end cap (223) is fittingly connected to the first through hole, and a gap is provided between the end cap (223) and an end of the rotary shaft (21) on which the bearing (221) is mounted.

6. An extrusion apparatus according to claim 1, further comprising a water jacket (5) fitted around the rotary shaft (21), wherein the water jacket (5) comprises a second through hole (50) for receiving at least a portion of the rotary shaft (21) and a second cooling flow passage (51) in fluid communication with the water separator (3), and the second cooling flow passage (51) is annular and is coaxially disposed with the second through hole (50).