CN100419142C

CN100419142C - Ringspindel

Info

Publication number: CN100419142C
Application number: CNB2004100070369A
Authority: CN
Inventors: G·谢弗勒
Original assignee: Wilhelm Stahlecker GmbH
Current assignee: Wilhelm Stahlecker GmbH; Novibra GmbH
Priority date: 2003-02-25
Filing date: 2004-02-25
Publication date: 2008-09-17
Anticipated expiration: 2024-02-25
Also published as: DE10309498A1; CN1524983A

Abstract

The oil bath (18) for the bottom bearing of a ring spindle is connected to the outside by a channel (17) through the bottom (6) of the bearing housing (5). The channel (17) is closed off by a spring-loaded ball valve (19). To go past the bearing peg (20), the oil channel (17) can be eccentric, at an angle, or the channel can be central and the peg has grooves to allow oil flow.

Description

The ring ingot

Technical field

The present invention relates to a kind of ring ingot, it is equipped with one to be used for the vertical bolster of a rotating spindle blade, the end bearing that is used for spindle blade, bolster base, a toroidal cavity that is positioned at oil sump minimum point place and the oil circuit that is used for re-lubrication when spindle blade remains on bolster that seals oil sump downwards that an oil sump that is placed in bolster is interior.

Background technology

A kind of like this prior art of encircling ingot is described in DE 199 07 162 A1.When allowing in spindle blade remains on bolster, known this ring ingot can fill once more oil sump.Be provided with two independent oil circuits in this scheme, this oil circuit vertically extends to axle sleeve in the middle of from last.Wherein an oil circuit is to continue to stretch to end bearing along the outside of middle axle sleeve.When annotating fresh oil once more, old oil washes by other lubricant passage way.

Because the basic size for the ring ingot of most models extensively works up standard, therefore various ring ingots can be changed mutually, and the ring ingot for known to this need be enclosed within jackshaft in the narrow situation and install.Therefore the wall of axle sleeve is thin as paillon foil in the middle of, produces practical difficulty so during fabrication with in installing.Oil sump is emptied completely to its minimum point is actual in the time of can not guaranteeing to change once oil in addition.

Summary of the invention

Task of the present invention is that under the situation that ring ingot size does not retrain, the energy re-lubrication wherein additionally guarantees when allowing spindle blade to remain in the bolster, virtually completely emptying of oil sump when changing once oil.

The solution of this task is that oil circuit is from extending to the toroidal cavity below by the bolster base and outwards sealing by a valve.

Therefore, according to the invention provides a kind of ring ingot, it has the end bearing that is used for spindle blade in a vertical bolster that is used for a rotatable spindle blade, the oil sump that is placed in bolster, bolster one base, a toroidal cavity that is positioned at oil sump minimum point place of sealing oil sump downwards, and an oil circuit that is used for re-lubrication in spindle blade remains on bolster the time.It is characterized in that oil circuit enters the toroidal cavity from the base below by bolster, and outwards seal by a check-valves.Locate to be provided with one in the central at the base of bolster and attach troops to a unit in the axle journal of end bearing, oil circuit is passed in the toroidal cavity on the next door of axle journal.

Owing to do not encircle any inner body of ingot in the position of below, the bottom of bolster, therefore can retrain the oil circuit size.Because oil circuit feeds in the toroidal cavity, so also old oil can be emptied completely when more changing oil at the minimum point place of oil sump.The suitable oil gun of packing on oil circuit for oiling, wherein the nozzle of oil gun is opened valve and oil circuit.

In the solution of the present invention, one be disposed at end bearing, be positioned at central authorities axle journal be arranged on the base of bolster, oil circuit is passed in the toroidal cavity on the next door of axle journal.The mouth of pipe and the axle journal that are oil circuit misplace slightly, enter the minimum point of oil sump like this on the oil pipe cause for gossip border.

Oil circuit can be done different designs according to the spindle type.

In a kind of enforcement, oil circuit prejudicially and axis be parallel to axle journal ground and extend.And in another embodiment, the oil circuit tiltable is extended in axle journal.In a word, should guarantee that oil circuit is in the avris of axle journal or nearby feeding.

In a kind of preferred version of invention, oil circuit is with the axle journal centering heart, and the mouth of pipe of axle journal closing oil path makes the groove of oil from avris inflow toroidal cavity but dispose.The another kind of scheme that can select or replenish is that this groove also can be arranged on the interface place of oil circuit.In this scheme, oil circuit definitely can the centering heart extend in the bottom, and the oil circuit mouth of pipe is not covered by end bearing naturally, because these are such as feeding the circular passage in the side with the groove that is arranged in the longitudinal groove form on the cylindrical outer surface.Axle journal preferably is pressed in the mouth of pipe of oil circuit.

The base that another kind of form of implementation is a bolster carries out the transition to a cross section constriction, and oil circuit passes this constriction.This cross section constriction is used in the ring ingot, and same additional external shell is connected bolster at the lower portion place in this ring ingot, and this external shell constitutes an annular gap in the face of bolster and can be fixed on the step rail.This spindle type is special attenuate acoustic noise, but oil circuit passes slightly some difficulty of cross section constriction, and therefore the geometry for the oil circuit guiding must give special attention.

The valve that is provided with in various modification can comprise a ball spring-loaded, that settle towards O shape ring etc.

Description of drawings

Other advantage of the present invention and feature can be learnt from regarding to the explanation of several embodiment down.

Accompanying drawing illustrates:

The axial section of the slight amplification of the ring ingot of a normal structure of Fig. 1 is provided with an oil circuit of the present invention in this ring ingot;

The axial section of a ring of Fig. 2 ingot lower part is taked special noise attentuation measure for this ring ingot, and this ring ingot is equipped with another kind of scheme according to oil circuit of the present invention;

Fig. 3 is a profile on the position of the set valve of oil circuit according to Fig. 1 or Fig. 2, just in time inserts an oil gun here;

Fig. 4 is by having the bigger axial section of Fig. 3 lower area by the oil circuit of another kind of conceptual design;

Fig. 5 is along a profile in the V-V cross section of Fig. 4.

The specific embodiment

But the ring ingot 1 of positioned vertical comprises twisting spindle blade 2 with transmission, and this spindle blade is bearing in a bearing of journals 3 that is designed to roller bearing and one and is divided on the two-part end bearing 4.The bearing of journals 3 and end bearing 4 are arranged in a bolster 5 with base 6 of a sealing.

Bolster 5 is made up of a bolster 7 and a top chock 8 that holds the bearing of journals 3 that has base 6 substantially, and this top chock inserts the bolster 7 from the top by interference fit.In the inside of bolster 5, an oil sump is arranged in the zone of end bearing 4.

End bearing 4 comprises end axis bearing sleeve 9 and thrust plate 10 that bears axial force of a bearing radial force.End axis bearing sleeve 9 remains in the centering tube 11, and this centering tube is fixed in the bearing block 8 by means of interference fit.Centering tube 11 has a spiral groove 12, and this groove makes centering tube 11 be gentle curved with a kind of desirable degree.

In bolster 7 cylindrical, between the cylindrical outline of profile and centering tube 11 annular groove that holds an oily screw line 13 is in a known way arranged.Oil screw line 13 all is placed in the oil sump.The toroidal cavity that comprises oily screw line 13 is connected with the oil sump of end bearing 4 by the transverse holes 14 in the centering tube 11.Oil screw line 13 is upwards by axle sleeve 15 supportings at interval.

Generally, ring ingot 1 is fixed on the step rail 16 of only representing with chain-dotted line together with the ring ingot of many other adjacent layouts.In addition, one is not disposed at this ring ingot 1 with the transmission wharve that illustrates, and all transmission wharves can bring transmission by a transmission that vertically moves along machine here.

Producing in the duration of runs, even this also intact and energy lubricate after longer service time of oil, oil can run off from oil sump.Under any circumstance, through behind certain period of operation, oil must re-inject in the bolster 5.In order to make spindle blade 2 need not from bolster 5, upwards to extract in this case, should consider when spindle blade 2 is arranged in bolster 5, will encircle ingot 1 re-lubrication.In this case, in case of necessity even can consider to make ring ingot 1 to continue operation.

Article one, oil circuit 17 is used for re-lubrication, and the base 6 by bolster 5 imports the toroidal cavity 18 of a formation oil sump minimum point from the bottom for it.Oil circuit 17 outwards seals by a valve 19.

Because a center axle journal 20 that is disposed at end bearing 4 is arranged on the base 6 of bolster 5, this axle journal is as the urgent backstop thing of thrust plate, so oil circuit 17 feeds in the toroidal cavity 18 on the next door of axle journal 20 from the side.If the axis of heart alignment ring ingot 1 in the oil circuit 17 then is not at the minimum point of oil sump suction oil and oil circuit 17 is topped by 4 of end bearings in addition.Therefore preferably make oil circuit 17 prejudicially, axis is parallel to axle journal 20 ground and extends.

Valve 19 comprises that is subjected to the ball 21 that spring adds load, and this ball is placed on the O shape ring.

Fig. 2 represents the lower part by the ring ingot of a special attenuate acoustic noise of special size variation.Here, bolster 5 is additionally surrounded by an outer valve jacket 24.All are positioned at the structure of the assembly of bolster 5 inside corresponding to the Fig. 1 that has described.According to Fig. 2, a toroidal cavity 18 is also arranged at the minimum point place of oil sump.

Compared to Figure 1 the outer valve jacket 24 of additional arrangement is designed to tubularly basically, is fixed on the step rail 16 that also only illustrates in Fig. 2.

Ring ingot special character according to Fig. 2 is that the cross section constriction 25 of bolster 5 is positioned at the below of base 6.This cross section constriction 25 forms a noncontinuity position, and it propagates into the solid-borne noise that derives from the bearing of journals 3 and becomes difficult on the outer valve jacket 24.Cross section constriction 25 is compared with bolster 5 has flexibility more significantly.5 of bolsters lower portion 26 places of valve jacket 24 outside clamp, this be in bolster 5 and outside a metal connection point is arranged between the valve jacket 24.

Bolster 5 and outside also have a toroidal cavity 27 between the valve jacket 24, it does not connect with the toroidal cavity 18 of bolster 5, therefore also different oil sumps connect.Toroidal cavity 27 injects a kind of special damping grease or rather, and the velocity of sound of this grease is significantly less than the velocity of sound of lubricating oil.

According to the oil circuit 28 that the technical scheme of Fig. 2 is provided with, this oil circuit must favour axle journal 20 ground naturally and pass noncontinuity position on the cross section constriction 25, and oil circuit just is passed in the toroidal cavity 18 of oil sump like this.But oil circuit 28 must design so in this case: it improves the bending stress of contraction flow region office, cross section with exceeding.Oil sump 28 is subjected to the sealing of valve 19 downwards again.

According to the cross section of Fig. 3, valve 19 is in the enable possition, is applicable to all embodiment on this position principle.Can see that an oil gun 29 is just overcoming spring 22 from the below power backs down ball 21 from O shape ring,

open oil circuit

17 or 28 with this.Oil gun 29 has one as the oilhole 30 that refuels again.

All derive according to the axial, cross-sectional view of the amplification of Fig. 4 and according to the affiliated cross section of Fig. 5 from Fig. 2.Can see that the lower end of bolster 5 is outside 26 places, position insert in the valve jacket 24.A cross section constriction 25 is also arranged here.

According to the structure of Fig. 4 and Fig. 5, toroidal cavity 18 is arranged in its lowest position of the oil sump of bolster 5 inside.This position is positioned at the below in the zone of end bearing 4.

According to Fig. 4 an axle journal 32 is set, it and bolster 5 are not whole.An oil circuit 31 can be set like this, and this oil circuit and axle journal 32 centering hearts are extended, and wherein this axle journal 32 is press fitted in the mouth of pipe 33 of oil circuit 31.Even under the mouth of pipe 33 situations of axle journal 32 closing oil paths 31, oil circuit 31 still can be passed into the toroidal cavity 18 from avris, because axle journal 32 is provided with groove 34 avris, that oil is passed through.This groove 34 can be designed to the longitudinal groove on the cylinder blanket face of axle journal 32.On the position of the mouth of pipe 33 of oil circuit 31, have a hole enlargement part 35, its guarantee oil circuit 31 by groove 34 to suitable connection between the toroidal cavity 18.

Claims

1. one is encircled ingot, it has the end bearing that is used for spindle blade in a vertical bolster that is used for a rotatable spindle blade, the oil sump that is placed in bolster, bolster one base, a toroidal cavity that is positioned at oil sump minimum point place of sealing oil sump downwards, and oil circuit that is used for re-lubrication in spindle blade remains on bolster the time

It is characterized in that described oil circuit (17; 28; 31) enter the toroidal cavity (18) from base (6) below by bolster (5), and outwards seal by a check-valves (19) and

Locating to be provided with one in the central at the base (6) of described bolster (5) attaches troops to a unit in the axle journal (20 of end bearing (4); 32), described oil circuit is passed in the toroidal cavity (18) on the next door of described axle journal.

2. ring ingot according to claim 1 is characterized in that, described oil circuit (17) prejudicially but axis is parallel to axle journal (20; 32) extend.

3. ring ingot according to claim 1 is characterized in that, described oil circuit (28) favours axle journal (20; 32) extend.

4. ring ingot according to claim 1, it is characterized in that, described oil circuit (31) extends with described axle journal (32) centering heart, and described axle journal (32) has sealed the mouth of pipe (33) of oil circuit (31), makes the groove (34) of oil from avris inflow toroidal cavity (18) but dispose.

5. ring ingot according to claim 4 is characterized in that, described axle journal (32) is pressed in the mouth of pipe (33) of described oil circuit (31).

6. according to each described ring ingot in the claim 3 to 5, it is characterized in that the base (6) of described bolster (5) carries out the transition to a cross section constriction (25), oil circuit (28; 31) walk by this constriction.

7. according to the described ring ingot of claim 1, it is characterized in that valve (19) comprises a spring-loaded ball (21), this ball is arranged on the O shape ring (23).