CN214007998U

CN214007998U - Speed reducer special for melt-blown fabric machine

Info

Publication number: CN214007998U
Application number: CN202023035275.9U
Authority: CN
Inventors: 陆晓妹
Original assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Current assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-08-20
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to a speed reducer field provides a special speed reducer of melt-blown fabric machinery. The purpose of cooling the bearings is achieved by circulating cooling water by a mode of arranging cooling cavities at the outer sides of the bearings, so that the speed reducer has high-temperature resistance; through two conventional bearing supporting fast play axles of practicality, set up the bearing chamber at the output of output shaft, installation thrust self-aligning roller bearing improves the anti axial force's of output shaft ability, sets up annular boss simultaneously on the output shaft, further improves its anti axial force's performance. The technical scheme can fully meet the use requirement of the melt-blown fabric machine.

Description

Speed reducer special for melt-blown fabric machine

Technical Field

The utility model relates to a speed reducer field, concretely relates to melt and spout special speed reducer of cloth machinery.

Background

The melt-blown fabric production equipment adopts a screw extruder, a spray head connected with an outlet of the screw extruder and an air supply device matched with the spray head, and melt-blown raw materials are sprayed on a receiving net through the spray head and the air supply device through a technological process to form melt-blown fabric. The screw rod is driven by the speed reducer, because the special construction of screw rod can produce great axial force in the course of the work, and the screw rod is extruded the in-process cutting raw materials and is produced a large amount of heats simultaneously, and ordinary speed reducer is difficult to satisfy its user demand.

Disclosure of Invention

In order to adapt to the driving requirement of the screw rod of the melt-blown fabric machine, the utility model aims to provide a special speed reducer of melt-blown fabric machine, which is high temperature resistant and can bear the axial force.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a special speed reducer of melt-blown fabric machinery, includes box, input shaft, input gear pair, jackshaft, output gear pair and output shaft, and the both ends of input shaft and jackshaft are supported in the box by the bearing, and the input shaft is through the vice drive jackshaft of input gear, and the jackshaft is through the vice drive output shaft of output gear, the output shaft is the hollow shaft, and the output shaft supports in the box through a pair of bearing, and the terminal surface extends the bearing room to the outside before the box, install the third bearing in the bearing room, the output of output shaft by the third bearing support, the output of output shaft be equipped with the outer terminal surface spacing annular boss of third bearing, the output of output shaft with install end cover between the bearing room, end cover is spacing with annular boss.

Further, the third bearing is a self-aligning thrust roller bearing.

Furthermore, a cooling cavity is formed in the inner wall of the bearing chamber, and circulating cooling water is introduced into the cooling cavity.

Furthermore, water cooling cavities are respectively arranged in the box body and correspond to the input shaft and the middle shaft bearing, and circulating cooling water is introduced into the water cooling cavities.

Still further, a pair of key grooves is arranged in an inner hole of the output end of the output shaft.

After taking above technical scheme, the beneficial effects of the utility model are that: the purpose of cooling the bearings is achieved by circulating cooling water by a mode of arranging cooling cavities at the outer sides of the bearings, so that the speed reducer has high-temperature resistance; through two conventional bearing supporting fast play axles of practicality, set up the bearing chamber at the output of output shaft, installation thrust self-aligning roller bearing improves the anti axial force's of output shaft ability, sets up annular boss simultaneously on the output shaft, further improves its anti axial force's performance. The technical scheme can fully meet the use requirement of the melt-blown fabric machine.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:

as shown in the figure, the speed reducer special for the melt-blown fabric machine comprises a box body 1, an input shaft 2, an input gear pair 3, an intermediate shaft 4, an output gear pair 5 and an output shaft 6. Two ends of the input shaft 2 and the intermediate shaft 4 are respectively supported in the box body 1 by self-aligning roller bearings 7, and the self-aligning roller bearings are respectively arranged in bearing holes of the box body 1; the input shaft 2 drives an intermediate shaft 4 via an input gear pair 3, and the intermediate shaft 4 drives an output shaft 6 via an output gear pair 5. The output shaft 6 is supported by a pair of self-aligning roller bearings and a single self-aligning thrust roller bearing 7. A pair of self-aligning roller bearings are arranged in bearing holes of the box body, a thrust self-aligning roller bearing 7 is arranged in a bearing chamber 8 at the extending end of the output shaft 6, and the bearing chamber 8 is a cylindrical chamber extending outwards from the outer wall of the box body 1. The output shaft 6 is a hollow shaft, double key grooves or splines are processed in an inner hole of the output end of the output shaft 6, and a screw rod of the melt-blown fabric machine is directly inserted into the output shaft to form connection transmission. The shaft end of the output shaft 6 is located in the bearing chamber 8, the annular boss 9 is processed on the front section of the output shaft 6, the inner side face of the annular boss 9 is limited by the thrust self-aligning roller bearing 7, the shaft end of the output shaft 6 is sleeved with the sealing end cover 10, sealing is formed between the sealing end cover 10 and the inner wall of the bearing chamber 8 and between the sealing end cover 10 and the outer wall of the output shaft 6, leakage of lubricating oil is prevented, and the inner end face of the sealing end cover 10 is limited by the outer end face of the annular boss 9.

In order to adapt to the high-temperature environment of a melt-blown fabric machine, four cooling cavities 11 which are uniformly distributed are processed on a bearing chamber, cooling cavities are processed at the positions, corresponding to the positions of the self-aligning roller bearings, on a box body, and the bearings are cooled by circulating cooling water in the cooling cavities, so that the bearings are prevented from losing efficacy due to high temperature.

Claims

1. The utility model provides a special speed reducer of melt-blown fabric machinery, includes box, input shaft, input gear pair, jackshaft, output gear pair and output shaft, and the both ends of input shaft and jackshaft are supported in the box by the bearing, and the input shaft is through the vice drive jackshaft of input gear, and the jackshaft is through the vice drive output shaft of output gear, its characterized in that, the output shaft is the hollow shaft, and the output shaft supports in the box through a pair of bearing, and the terminal surface extends the bearing room to the outside before the box, install the third bearing in the bearing room, the output of output shaft by the third bearing supports, the output of output shaft be equipped with the outer terminal surface spacing annular boss of third bearing, the output of output shaft with install end cover between the bearing room, end cover is spacing with annular boss.

2. The speed reducer of claim 1, wherein the third bearing is a self-aligning thrust roller bearing.

3. The speed reducer special for melt-blown fabric machinery according to claim 1, wherein a cooling cavity is formed in the inner wall of the bearing chamber, and circulating cooling water is introduced into the cooling cavity.

4. The speed reducer special for melt-blown fabric machinery according to claim 1, wherein water cooling cavities are respectively arranged in the box body corresponding to the input shaft and the intermediate shaft bearing, and circulating cooling water is introduced into the water cooling cavities.

5. The speed reducer of claim 1, wherein a pair of keyways is disposed in the inner bore of the output end of the output shaft.