CN207879864U - A kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure - Google Patents

A kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure Download PDF

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Publication number
CN207879864U
CN207879864U CN201820162543.7U CN201820162543U CN207879864U CN 207879864 U CN207879864 U CN 207879864U CN 201820162543 U CN201820162543 U CN 201820162543U CN 207879864 U CN207879864 U CN 207879864U
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China
Prior art keywords
bearing
housing
cover
ring
main motor
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CN201820162543.7U
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Chinese (zh)
Inventor
钱佩佩
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Jiangsu Shurun CNC Technology Co.,Ltd.
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JIANGSU RUNDE CNC Co Ltd
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Abstract

The utility model provides a kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure, including shell and lubrication assembly, lubrication assembly includes bearing gland and bearing holder (housing, cover), bearing holder (housing, cover) is set at shell nozzle and is fixedly connected with the casing, bearing holder (housing, cover) is fixedly connected with bearing outer ring, oil inlet passage and the first drain path are respectively equipped on bearing holder (housing, cover) side wall in an axial direction, oil inlet passage and the first drain path are connected to housing cavity, bearing gland is set to bearing outer ring upper end, bearing gland is fixedly connected with bearing holder (housing, cover), bearing gland side wall is equipped with multiple through-holes, through-hole is set to above bearing, oil inlet passage and the first drain path are connected to through-hole.The utility model is coordinated using oil inlet passage and through-hole, lubricating oil is dropped on the ball of the bearing in top, ball rotation keeps oil lubrication uniform, and it leaks out on the bearing ball being below and is lubricated from the ball in top bearing, avoid bearing rotating speed is too fast from causing overheat burn-up damage.

Description

A kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure
Technical field
The utility model is related to gear-box technical fields, more particularly to a kind of numerically-controlled machine tool gear-box main motor shaft bearing Lubrication system.
Background technology
Main motor shaft is connect by bearing with housing into rotation in gear-box, under normal circumstances the multiple bearings of setting in bearing bore The gravity for sharing main motor shaft, preventing bearing support power not enough causes to damage, and when bearing working needs lubricating oil cooperation to carry out it Sufficient lubrication ensures the working effect of bearing.
Injection lubrication is carried out to bearing bore using oil pipe inside gear-box, when work of numerical control machine, main motor shaft and bearing High speed rotation, high-speed rotating bearing surface generate oil sealing, and lubricating oil is caused bearing can not to be passed through to other sequentially connected axis Hold and be lubricated, cause to lubricate it is uneven, it is unfavorable to bearing lubrication, be easy to cause bearing wear, bearing is unable to fully for a long time In the case of lubrication, bearing running hot burn-up damage is easily led to.
Utility model content
Technical problem to be solved in the utility model is:In order to overcome main motor shaft bearing lubrication in the prior art uneven Even deficiency, the utility model provide a kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure.
The utility model solves its technical problem technical solution to be taken:A kind of numerically-controlled machine tool gear-box main motor Axle bearing lubrication system at least two bearing lubrication to being sheathed on successively on main motor shaft, including shell and is set to Lubrication assembly in the shell, the shell upper end are equipped with opening, and the lubrication assembly includes bearing gland and bearing holder (housing, cover), institute It states bearing holder (housing, cover) to be fixedly connected with the shell at the shell nozzle, the bearing holder (housing, cover) is fixed with the bearing outer ring to be connected It connects, is respectively equipped with oil inlet passage and the first drain path on the bearing holder (housing, cover) side wall in an axial direction, the oil inlet passage and first let out Oily channel is connected to the housing cavity, and the bearing gland is set to the bearing outer ring upper end, the bearing gland and institute It states bearing holder (housing, cover) to be fixedly connected, the bearing gland side wall is equipped with multiple through-holes, and the through-hole is set to above the bearing, described Oil inlet passage and the first drain path are connected to the through-hole.
Shell is used to support main motor shaft and lubrication assembly, and housing cavity is equipped with lubricating oil, and bearing is for connecting main motor Axis makes main motor shaft that can work with high-speed rotation, and the gravity of main motor shaft can be shared using at least two bearings, is prevented One bearing support power is inadequate, is easily damaged, and bearing holder (housing, cover) is used to bearing being arranged in shell, and bearing gland is used for and bearing holder (housing, cover) Cooperation prevents bearing lower bounce in the vertical direction, and to influence main motor shaft rotation, oil inlet passage is used for lubricating oil from shell Intracoelomic cavity is sucked out, and is dropped to lubricating oil on the ball of the bearing in top by coordinating with through-hole, and ball rotation makes lubrication Oil lubrication is uniform, and leaks out to from the ball in top bearing and be lubricated on the bearing ball being below, and avoids Bearing rotating speed is too fast to cause overheat burn-up damage, through-hole to be additionally operable to lubricating oil extra above bearing flowing to first by through-hole Drain path forms cycle to be back to housing cavity.
Further, further include spacer ring, the spacer ring is set to the bearing inner race upper end, and the spacer ring is sheathed on the main electricity It is fixedly connected with the main motor shaft on arbor, the spacer ring outside wall surface is equipped with the coordinated with the bearing gland internal face One labyrinth ring, the bearing gland internal face are equipped with the second labyrinth ring coordinated with the spacer ring outside wall surface, first fan Palace ring and the mutual cooperation of the second labyrinth ring are staggered, and first labyrinth ring and the second labyrinth ring are set on the through-hole Side.
It is arranged on spacer ring on the first labyrinth ring and bearing gland and the mutual cooperation of the second labyrinth ring is set, for prevents bearing Square lubricating oil is excessive, to overflow or splash place's hull outside, causes loss of lubrication, and avoids influencing housing outer surface cleaning Degree.
Further, be additionally provided with oil leak hole on the bearing gland side wall, the oil leak hole be set to first labyrinth ring and Above second labyrinth ring, the outer side seal of the oil leak hole is equipped with plug, and the bearing holder (housing, cover) is equipped with the be connected to the oil leak hole Two drain paths, second drain path lower end are connected to the housing cavity.
Lubricating oil is excessive for preventing above bearing for the cooperation of oil leak hole and the second drain path, and pressure is excessive, has worn long When crossing the first labyrinth ring and the second labyrinth ring, by oil leak hole and the urgent draining of the second drain path, lubricating oil is made to be back to shell Intracoelomic cavity is spare draining scheme.
The utility model has the beneficial effects that:A kind of numerically-controlled machine tool gear-box main motor shaft bearing provided by the utility model Lubrication system is coordinated using oil inlet passage and through-hole, lubricating oil is dropped on the ball of the bearing in top, ball rotation Keep oil lubrication uniform, and leaks out to from the ball in top bearing and moistened on the bearing ball being below It is sliding, avoid bearing rotating speed is too fast from causing overheat burn-up damage.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the best embodiment of the utility model;
Fig. 2 is the enlarged diagram of A in Fig. 1;
Fig. 3 is the diagrammatic cross-section of the best embodiment of the utility model.
In figure:1, shell, 2, main motor shaft, 3, bearing, 4, bearing gland, 5, bearing holder (housing, cover), 6, oil inlet passage, 7, first lets out Oily channel, 8, through-hole, 9, spacer ring, the 10, first labyrinth ring, the 11, second labyrinth ring, 12, oil leak hole, 13, plug, 14, second lets out Oily channel.
Specific implementation mode
The utility model is described in detail presently in connection with attached drawing.This figure is the schematic diagram of simplification, only in a schematic way Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.
As shown in Figs. 1-3, a kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure of the utility model, for pair Two bearings 3 lubrication being sheathed on successively on main motor shaft 2, including shell 1 and the lubrication assembly in the shell 1, 1 upper end of the shell is equipped with opening, and the lubrication assembly includes bearing gland 4 and bearing holder (housing, cover) 5, and the bearing holder (housing, cover) 5 is set to described 1 opening of shell is bolted to connection with the shell 1,5 internal face of the bearing holder (housing, cover) and 3 outer ring outside wall surface of the bearing It is interference fitted, oil inlet passage 6 and the first drain path 7, the oil inlet passage is respectively equipped in an axial direction on 5 side wall of the bearing holder (housing, cover) 6 and first drain path 7 be connected to 1 inner cavity of the shell, the bearing gland 4 support be set to 3 outer ring upper end of the bearing, institute It states bearing gland 4 to be bolted to connection with the bearing holder (housing, cover) 5, multiple through-holes is uniformly provided on 4 side wall of the bearing gland 8, the through-hole 8 is set to 3 top of the bearing, and the oil inlet passage 6 and the first drain path 7 are connected to the through-hole 8.
Further include spacer ring 9, the spacer ring 9 is set to 3 inner ring upper end of the bearing, and the spacer ring 9 is sheathed on the main motor It is fixedly connected with the main motor shaft 2 on axis 2,9 outside wall surface of the spacer ring, which is equipped with, to be coordinated with 4 internal face of the bearing gland First labyrinth ring 10, first labyrinth ring 10 are integrally machined with the spacer ring 9, are set on 4 internal face of the bearing gland There are the second labyrinth ring 11 coordinated with 9 outside wall surface of the spacer ring, second labyrinth ring 11 to be integrally machined with the bearing gland 4 It forms, the mutual cooperation of first labyrinth ring, 10 and second labyrinth ring 11 is staggered, and first labyrinth ring 10 and second is confused Palace ring 11 is set to 8 top of the through-hole.
Oil leak hole 12 is additionally provided on 4 side wall of the bearing gland, the oil leak hole 12 is set to 10 He of the first labyrinth ring Second labyrinth ring, 11 top, 12 outer side seal of the oil leak hole are equipped with plug 13, and the bearing holder (housing, cover) 5 is equipped with and the oil leak hole 12 Second drain path 14 of connection, 14 lower end of the second drain path is connected to 1 inner cavity of the shell.
Operation principle:
Lubricating oil is pumped into from 1 inner cavity of shell in oil inlet passage 6 by compression pump, by coordinating lubricating oil with through-hole 8 It drops on the ball of the bearing 3 in top, ball rotation keeps oil lubrication uniform, and from top bearing 3 It leaks out on 3 ball of bearing being below and is lubricated at ball, extra lubricating oil flow to the first draining by through-hole 8 and leads to Road 7 forms cycle to be back to 1 inner cavity of shell;
When 3 top lubricating oil of bearing is excessive, pressure is excessive, and across the first labyrinth ring 10 and the second labyrinth ring 11 when, lead to 14 urgent draining of oil leak hole 12 and the second drain path is crossed, lubricating oil is made to be back to 1 inner cavity of shell, is spare draining scheme.
It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model Technical scope is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.

Claims (3)

1. a kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure, for being sheathed on successively on main motor shaft (2) At least two bearings (3) lubricate, it is characterised in that:Lubrication assembly including shell (1) and in the shell (1), institute It states shell (1) upper end and is equipped with opening, the lubrication assembly includes bearing gland (4) and bearing holder (housing, cover) (5), and the bearing holder (housing, cover) (5) sets It is fixedly connected with the shell (1) in the shell (1) opening, the bearing holder (housing, cover) (5) is fixed with the bearing (3) outer ring to be connected It connects, oil inlet passage (6) and the first drain path (7), the oil inlet passage is respectively equipped in an axial direction on bearing holder (housing, cover) (5) side wall (6) it is connected to the shell (1) inner cavity with the first drain path (7), the bearing gland (4) is set to the bearing (3) outside Upper end is enclosed, the bearing gland (4) is fixedly connected with the bearing holder (housing, cover) (5), and bearing gland (4) side wall is equipped with multiple logical Hole (8), the through-hole (8) are set to above the bearing (3), the oil inlet passage (6) and the first drain path (7) with it is described Through-hole (8) is connected to.
2. a kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure as described in claim 1, it is characterised in that:Also wrap Spacer ring (9) is included, the spacer ring (9) is set to the bearing (3) inner ring upper end, and the spacer ring (9) is sheathed on the main motor shaft (2) Upper to be fixedly connected with the main motor shaft (2), spacer ring (9) outside wall surface is equipped with matches with the bearing gland (4) internal face The first labyrinth ring (10) closed, bearing gland (4) internal face are equipped with the second fan coordinated with the spacer ring (9) outside wall surface Palace ring (11), first labyrinth ring (10) and the second labyrinth ring (11) mutual cooperation are staggered, first labyrinth ring (10) it is set to above the through-hole (8) with the second labyrinth ring (11).
3. a kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure as claimed in claim 2, it is characterised in that:It is described Oil leak hole (12) is additionally provided on bearing gland (4) side wall, the oil leak hole (12) is set to first labyrinth ring (10) and second Above labyrinth ring (11), the outer side seal of the oil leak hole (12) is equipped with plug (13), and the bearing holder (housing, cover) (5) is equipped with and the draining The second drain path (14) of hole (12) connection, the second drain path (14) lower end is connected to the shell (1) inner cavity.
CN201820162543.7U 2018-01-30 2018-01-30 A kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure Active CN207879864U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820162543.7U CN207879864U (en) 2018-01-30 2018-01-30 A kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820162543.7U CN207879864U (en) 2018-01-30 2018-01-30 A kind of numerically-controlled machine tool gear-box main motor shaft bearing lubrication structure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812505A (en) * 2019-02-19 2019-05-28 吴银辉 The micro motor bearing of gear oil lubrication
CN113833768A (en) * 2021-09-26 2021-12-24 珠海格力电器股份有限公司 Bearing lubricating structure and motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812505A (en) * 2019-02-19 2019-05-28 吴银辉 The micro motor bearing of gear oil lubrication
CN109812505B (en) * 2019-02-19 2020-11-06 吴银辉 Micro motor bearing with gear oil lubrication
CN113833768A (en) * 2021-09-26 2021-12-24 珠海格力电器股份有限公司 Bearing lubricating structure and motor

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Effective date of registration: 20200605

Address after: 213200, No. 168, Hua Cheng Middle Road, Jintan, Jiangsu, Changzhou

Patentee after: Jiangsu Shurun CNC Technology Co.,Ltd.

Address before: 213200 Jiangsu city of Changzhou province Jintan HuiFu Road Economic Development Zone No. 9

Patentee before: JIANGSU RUNDE CNC Co.,Ltd.