CN218625360U

CN218625360U - Gear box for vertical rolling mill

Info

Publication number: CN218625360U
Application number: CN202223072675.6U
Authority: CN
Inventors: 李响; 杨天益
Original assignee: Jiangyin Tiancheng Mechanical Equipment Co ltd
Current assignee: Jiangyin Tiancheng Mechanical Equipment Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-14
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to a gear box for vertical rolling mill, the power distribution box comprises a box body, the parallel is equipped with jackshaft and output shaft in the box, and each jackshaft and output shaft both ends are all through bearing support on the box, are equipped with lower support bearing and axle end board on each jackshaft, the output shaft respectively, and the axle end board is spacing to the lower support bearing that corresponds, and it is equipped with the axle head lid to correspond each jackshaft, output shaft on the box, forms the sump oil bin between the axle head lid of one-to-one and the axle end board, and sump oil bin one side is equipped with the oil inlet, the output shaft upper end is stretched out the output shaft and is connected the roll after passing through the lid, and the output shaft passes through the lid to be fixed on the box, the cover is equipped with the throwing water ring on the output shaft, it covers outside the output shaft passes through the lid to throw water the ring. The lubricating oil of the utility model realizes internal circulation, performs forced lubrication on the bearing soaked in hot oil, has good heat dissipation effect, and prolongs the service life of the bearing; the upper end of the output shaft and the assembly position of the box body are sealed by three sealing steps, so that the waterproof sealing effect is good.

Description

Gear box for vertical rolling mill

Technical Field

The utility model relates to a gear box technical field, concretely relates to gear box for vertical rolling mill.

Background

The vertical rolling mill gear box is mainly used for steel rolling production lines of high-speed wires, bars, profiles and the like, transmits and distributes power of a motor to two or three output shafts, each output shaft is directly connected with a roller, and the torque and the speed required by a rolling mill are met through a reduction ratio.

The existing vertical rolling mill gear box has the following defects:

when the gearbox runs at a high speed, the temperature of the gearbox is easily increased, so that the bottom bearing is soaked in hot oil for a long time and cannot dissipate heat, the local temperature is very high, the bearing is damaged, and equipment is damaged;

carry out the water spray heat dissipation to the roll, the output shaft of shower water meeting below the roll carries out water washing, in case the sealed inefficacy between output shaft and the gear box, water can get into the gear box, causes the equipment damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide a gear box for a vertical rolling mill, the lubricating oil in an oil collecting bin at the bottom of a box body realizes internal circulation, and the bearing soaked in hot oil is forcibly lubricated, so that the heat dissipation effect is good, and the service life of the bearing is prolonged; through three seals in output shaft upper end and box assembly department, waterproof sealing is effectual, can avoid the emergence of lubricating oil emulsification phenomenon for the gear box operates steadily, is suitable for popularizing and applying.

The purpose of the utility model is realized like this:

the utility model provides a gear box for vertical rolling mill, includes the box, parallel be equipped with jackshaft and output shaft in the box, each jackshaft and output shaft both ends all pass through the bearing supporting on the box, are equipped with lower support bearing and axle end board on each jackshaft, the output shaft respectively, and the axle end board is spacing to the lower support bearing that corresponds, and each jackshaft, output shaft that correspond on the box are equipped with the axle head cover, form the sump oil storehouse between the axle head cover of one-to-one and the axle end board, and sump oil storehouse one side is equipped with the oil inlet, and the oil inlet is used for the lower support bearing oil supply, the output shaft upper end is stretched out the output shaft and is passed through the lid and connect the roll after, the output shaft passes through the lid and fixes on the box, the cover is equipped with the throwing water ring on the output shaft, the throwing water ring cover passes through the lid outside the output shaft.

Preferably, a thin oil station is arranged outside the box body, lubricating oil in the box body is sucked in the thin oil station, and the thin oil station sends the lubricating oil to each oil inlet through a pipeline.

Preferably, an oil inlet is formed in one side of the oil collecting bin located below the intermediate shaft, an overflow hole is formed in the other side of the oil collecting bin, and the overflow hole is communicated with the oil collecting bin.

Preferably, after the lubricating oil enters the oil collecting bin below the middle shaft, the lubricating oil flows back to the box body through the overflow hole.

Preferably, the output shaft is located and still is equipped with the waterproof cover of one-level and the waterproof cover of second grade in the throwing water ring inboard, the waterproof cover of one-level and the output shaft pass through and are equipped with dust seal circle between covering, the waterproof cover of second grade is equipped with the manger plate ring, and the transparent cover of output shaft corresponds the manger plate ring and is equipped with the spacer sleeve.

Preferably, the water throwing ring is fixed on the output shaft and rotates along with the output shaft, and the water throwing ring forms primary sealing; a dustproof sealing ring between the primary waterproof sleeve and the output shaft transparent cover forms secondary sealing; the water retaining ring of the second-stage waterproof sleeve and the blocking sleeve of the output shaft transparent cover form third-stage sealing.

The utility model has the advantages that:

the lubricating oil station sucks lubricating oil in the box body, the lubricating oil station sends the lubricating oil into each oil inlet through a pipeline to perform forced lubrication on the bearing soaked in the lubricating oil, the lubricating oil enters each oil collecting bin, and the lubricating oil flows back to the box body through the overflow holes after entering the oil collecting bin with higher temperature, so that the circulation of the lubricating oil is accelerated, and the heat dissipation is accelerated; lubricating oil directly overflows from the bearing after entering the oil collection bin with slightly low temperature, internal circulation of the lubricating oil in the oil collection bin at the bottom of the box body is realized, the heat dissipation effect is good, and the service life of the bearing is prolonged, so that the service life of the gear box is prolonged;

the upper end of the output shaft and the assembly position of the box body are sealed in three ways, so that the gear box is guaranteed not to be water-fed on the premise of ensuring the cooling of the roller, the sealing effect is good, the lubricating oil emulsification phenomenon can be avoided, the gear box can stably operate, and the gearbox is suitable for popularization and application.

Drawings

Fig. 1 is a schematic view of the mechanism of the present invention.

Fig. 2 is a partial enlarged view of the output shaft end.

FIG. 3 is a partially enlarged view of the bottom of the case.

Wherein: a box body 1; a primary intermediate shaft 2; a secondary intermediate shaft 3; an output shaft 4; a first lower support bearing 5; a second lower support bearing 6; a third lower support bearing 7; a first axial end plate 8; a second axial end plate 9; a third shaft end plate 10; a first shaft end cover 11; a second shaft end cap 12; a third shaft end cap 13; a first oil collection bin 14; a second oil collecting bin 15; a third oil collecting bin 16; an oil inlet 17; an overflow aperture 18; an output shaft transparent cover 19; a spacer sleeve 19.1; a water slinging ring 20; a primary waterproof jacket 21; a secondary waterproof jacket 22; the water retaining ring 22.1; and a dust seal 23.

Detailed Description

Referring to fig. 1-3, the utility model relates to a gear box for vertical rolling mill, comprising a box body 1, a first-stage intermediate shaft 2, a second-stage intermediate shaft 3 and an output shaft 4 are arranged in the box body 1 in parallel, the output shaft is provided with 2-3, two ends of each intermediate shaft and the output shaft 4 are supported on the box body 1 through bearings, wherein the first-stage intermediate shaft 2 is sleeved with a first lower support bearing 5, the second-stage intermediate shaft 3 is sleeved with a second lower support bearing 6, the output shaft 4 is sleeved with a third lower support bearing 7, the bottom end face of the first-stage intermediate shaft 2 is connected with a first shaft end plate 8, the first shaft end plate 8 limits the first lower support bearing 5, the bottom end face of the second-stage intermediate shaft 3 is connected with a second shaft end plate 9, the second shaft end plate 9 limits the second lower support bearing 6, the bottom end face of the output shaft 4 is connected with a third shaft end plate 10, the box body is respectively provided with a first shaft end plate 11, a second shaft end plate 12 and a third shaft end plate 13 corresponding to the first shaft end plate 8 and the output shaft 4, a first oil collecting bin 14 is formed between the first shaft end plate 9 and the second shaft end plate 12, a second oil collecting bin 15 is formed between the third shaft end plate 16,

the box body 1 is provided with oil inlets 17 corresponding to the lower supporting bearings, the oil inlets 17 supply lubricating oil to the lower supporting bearings, the oil inlets 17 are arranged on one sides of the lower supporting bearings, overflow holes 18 are respectively arranged on the other sides of the first lower supporting bearing 5 and the second lower supporting bearing 6, and the overflow holes 18 are communicated with the corresponding oil collecting bins.

The lubricating oil station is matched with the outside of the box body, the lubricating oil station sucks lubricating oil in the box body, the lubricating oil station sends the lubricating oil into each oil inlet 17 through a pipeline, bearings soaked in the lubricating oil are subjected to forced lubrication, the lubricating oil enters each oil collecting bin, the lubricating oil flows back to the box body 1 through the overflow holes 18 after entering the first oil collecting bin 14 and the second oil collecting bin 15 which are high in temperature, the circulation of the lubricating oil is accelerated, the heat dissipation is accelerated, and the lubricating oil enters the third oil collecting bin 16 which is low in temperature and directly overflows from one side of the third lower supporting bearing 7. The first intermediate shaft 2 and the second intermediate shaft 3 rotate at high speed, the corresponding oil collecting chambers have higher temperature, the output shaft 4 rotates at low speed, and the corresponding oil collecting chambers have lower temperature, so the forced lubrication mode is slightly different.

The upper end of the output shaft 4 extends out of an output shaft through cover 19 and then is connected with a roller, the output shaft through cover 19 is fixed on the box body 1, a water throwing ring 20, a primary waterproof sleeve 21 and a secondary waterproof sleeve 22 are sequentially sleeved on the output shaft 4 from outside to inside, the water throwing ring 20 covers the output shaft through cover 19, a dustproof sealing ring 23 is arranged between the primary waterproof sleeve 21 and the output shaft through cover 19, the secondary waterproof sleeve 22 is provided with a water retaining ring 22.1, the output shaft through cover 19 is provided with a retaining sleeve 19.1 corresponding to the water retaining ring, the water throwing ring 20 is fixed on the output shaft 4 and rotates along with the output shaft 4, and the water throwing ring 20 prevents outside cooling water from entering the gear box to form primary sealing; a dustproof sealing ring 23 between the primary waterproof sleeve 21 and the output shaft transparent cover 19 forms secondary sealing; the water retaining ring 22.1 of the second-stage waterproof sleeve 22 and the blocking sleeve 19.1 of the output shaft transparent cover 19 form three-stage sealing, and the gear box is ensured not to be filled with water through three-stage sealing on the premise of cooling the roller, so that the sealing effect is good.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a gear box for vertical rolling mill, includes the box, parallel arrangement has jackshaft and output shaft in the box, and all through the bearing support on the box, its characterized in that at each jackshaft and output shaft both ends: the oil collecting device is characterized in that lower supporting bearings and shaft end plates are respectively arranged on the intermediate shafts and the output shaft, the shaft end plates are limited to the corresponding lower supporting bearings, shaft end covers are arranged on the box body corresponding to the intermediate shafts and the output shaft, oil collecting bins are formed between the shaft end covers in one-to-one correspondence and the shaft end plates, an oil inlet is formed in one side of each oil collecting bin and used for supplying oil to the lower supporting bearings, the upper end of the output shaft extends out of the output shaft through cover and then is connected with a roller, the output shaft through cover is fixed on the box body, a water throwing ring is sleeved on the output shaft, and the water throwing ring covers the output shaft through cover.

2. A gear box for a vertical rolling mill according to claim 1, characterized in that: the box body is externally provided with a thin oil station, the thin oil station sucks lubricating oil in the box body, and the thin oil station sends the lubricating oil to each oil inlet through a pipeline.

3. A gear box for a vertical rolling mill according to claim 2, characterized in that: an oil inlet is arranged on one side of the oil collecting bin positioned below the intermediate shaft, an overflow hole is arranged on the other side of the oil collecting bin, and the overflow hole is communicated with the oil collecting bin.

4. A gear box for a vertical rolling mill according to claim 3, characterized in that: and after the lubricating oil enters the oil collecting bin below the middle shaft, the lubricating oil flows back to the box body through the overflow hole.

5. A gear box for a vertical rolling mill according to claim 1, characterized in that: the output shaft is further provided with a first-stage waterproof sleeve and a second-stage waterproof sleeve on the inner side of the water throwing ring, a dustproof sealing ring is arranged between the first-stage waterproof sleeve and the output shaft through cover, the second-stage waterproof sleeve is provided with a water retaining ring, and the output shaft through cover is provided with a blocking sleeve corresponding to the water retaining ring.

6. A gear box for a vertical rolling mill according to claim 5, characterized in that: the water slinging ring is fixed on the output shaft and rotates along with the output shaft, and the water slinging ring forms primary sealing; a dustproof sealing ring between the primary waterproof sleeve and the output shaft transparent cover forms secondary sealing; the water retaining ring of the second-stage waterproof sleeve and the blocking sleeve of the output shaft transparent cover form third-stage sealing.