CN203614599U - Pulley bearing box - Google Patents
Pulley bearing box Download PDFInfo
- Publication number
- CN203614599U CN203614599U CN201320796798.6U CN201320796798U CN203614599U CN 203614599 U CN203614599 U CN 203614599U CN 201320796798 U CN201320796798 U CN 201320796798U CN 203614599 U CN203614599 U CN 203614599U
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- Prior art keywords
- housing
- rear end
- end cover
- central shaft
- flow guiding
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a pulley bearing box. The pulley bearing box comprises a housing, a front end cover, a rear end cover and a center shaft, wherein the housing is provided with an axial hole which penetrates through the housing and is used for the placement of a bearing; a sealing ring shoulder is arranged at the inner edge of the inner cavity, close to the axial hole, of the housing; a tangential flow guiding face is arranged at the inner edge of the inner cavity, far away from the axial hole, of the housing; at least one liquid drain hole is formed in the outer edge of the tangential flow guiding face; an inner flow guiding bevel is internally arranged at one end, facing to the housing, of the rear end cover; a flow guiding cylindrical surface is also internally arranged at one end, facing to the housing, of the rear end cover; the inner flow guiding bevel and the flow guiding cylindrical surface form a flow guiding cavity; an outer flow guiding bevel is arranged at one end, far away from the housing, of the rear end cover; a flow guiding ring groove is formed in the cover periphery of the rear end cover. The pulley bearing box provided by the utility model can effectively prevent cutting fluid from entering the bearing inside a bearing box, and convenient and quick disassembly can be realized when the bearing needs to be maintained and replaced.
Description
Technical field
The utility model relates to a kind of bearing box, is specifically related to the pulley bearings box of a kind of multi-wire saw slicer (HCT lathe).
Background technique
In the multi-wire saw HCT of silicon chip lathe, pulley bearings box is a large consumptive material, its working environment very severe.The most insoluble problem is exactly how to prevent that cutting liquid from entering in its inner bearing, once cutting liquid will make internal bearings wearing and tearing aggravation after entering inner bearing, finally cause pulley bearings box looseness to be scrapped, can change its internal bearings for the lighter pulley bearings box of wearing and tearing and be repaired, can only scrap for the pulley bearings box being badly damaged.
As shown in Figure 1, what it adopted is that the airtight mode that adds wavy spring sealing seals cutting liquid to the structure of pulley bearings box of the prior art, and housing is made to integrated type.Two dish bearing inner races are fixed on the end of central shaft 4, and outer ring is fixedly mounted on the inside of housing 3.Axial restraint one end of bearing 5 is fixing with the shaft shoulder 41 of central shaft 4, and one end adopts jump ring 7 fixing.Jump ring 7 is arranged in the circular groove of housing 3 inner bearing positions.Wavy spring 6 is arranged in the circular groove of rear end cover 2, is contacted and is formed a sealing surface by the outer rim of elastic waveform stereoscopic spring with shell end inner edge.The center of central shaft 4 has a blind hole, and the end of blind hole has 42, two holes of a radial direction through hole and forms a T shape of falling, for entering of sealing gas.The shape of the blind hole of the position crossing at blind hole end and radial direction through hole 42 is the Hexagon of 3mm.Sealing gas enters to inside by the blind hole of the inside end of central shaft 4 and flows out through radial direction through hole 42, more outwards flows out and spray and prevent that cutting liquid from entering with the gap of central shaft 4 and housing 3 and rear end cover 2 through housing 3.
This pulley bearings box of prior art in use, when cutting liquid is flowed through whole pulley bearings box from top to bottom, due to the exterior edge face of rear end cover 2 and the end face of housing 3 not coplanar, while causing cutting liquid to flow on the cylndrical surface of rear end cover 2, the cutting liquid of some axially flows in the circular groove of rear end cover 2, owing to there being wavy spring 6 to seal, outside part slurry is blocked in, but some still can flow to inside, although wavy spring 6 has the cutting liquid of prevention to flow to inner effect, but the discharge for the cutting liquid that flows to bearing box inside has interception too, this just may make the cutting liquid of inflow cumulative, make bearing wear aggravation cause fault until flow to the position of bearing 5.
When changing bearing it repaired for the bearing box damaging but do not scrap, first insert in central shaft blind hole it is fixed with 3mm inner hexagon spanner, with spanner, rear end cover 2 is taken off again, then take off the jump ring 7 of rigid bearing, then with special tool, central shaft 4 and bearing 5 are pulled out.But in the 3mm changing in the blind hole that often occurs central shaft in the process of bearing 5, hexagonal hole 8 is twisted stripped thread, and central shaft 4 cannot be fixed, the situation that rear end cover 2 cannot be dismantled.In addition, hold in 5 process and separate because bearing 5 serious wear cause the Internal and external cycle of bearing 5 at pulling shaft, outer ring cannot be taken out and be caused scrapping of whole bearing box from housing.
In sum, the pulley bearings box of prior art has and can not effectively cutting liquid be discharged, and keeps in repair inconvenient disadvantage, and central shaft 4 need be opened interior hexagonal hole 8 simultaneously, and preparation process requires high, and cost is high.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of HCT pulley bearings box, by changing internal structure and the seal form of HCT pulley bearings box, stop cutting liquid to enter bearing inside, and then extended the working life of the pulley bearings box of HCT wire saw machine tool use, in the time of maintenance, more convenient and quicker.
For achieving the above object, the utility model is by the following technical solutions:
A kind of pulley bearings box, comprise housing, front cover, rear end cover and central shaft, described housing have run through described housing for settling the axial bore of bearing, described front cover is removably connected with one end away from described rear end cover of described housing by fastening piece, described rear end cover is connected with one end of described central shaft, wherein
The inner chamber inner edge place of the close axial bore of described housing is provided with seal ring shoulder, and the inner chamber outer rim place away from axial bore of described housing is provided with tangential flow guiding face, and the outer rim place of described tangential flow guiding face is provided with at least one outage;
The inside of one end towards described housing of described rear end cover is provided with interior water conservancy diversion inclined-plane, the inside of one end towards described housing of described rear end cover is also provided with water conservancy diversion cylndrical surface, described interior water conservancy diversion inclined-plane and described water conservancy diversion cylindrical become diversion cavity, one end away from described housing of described rear end cover is provided with outer water conservancy diversion inclined-plane, and the lid periphery place of described rear end cover is provided with water conservancy diversion annular groove.
Further, the angled setting of center line of the tangential flow guiding face of described housing and described central shaft.
Further, the quantity of described outage is 3, and the angular interval between described each outage is 120 °.
Further, the shaft shoulder of described central shaft is designed to outer hexagonal structure.
Further, on described front cover, be provided with circular groove, O type circle is installed in described circular groove.
Further, the inner ring of two dish bearings is fixedly mounted on described central shaft, and outer ring is fixedly mounted on described enclosure interior.
Further, in the circular groove of the bearing position of described housing, jump ring is installed.
Further, be provided with rear end cover screw thread in described rear end cover, described central shaft end is provided with central shaft outside thread, and rear end cover screw thread matches described rear end cover is connected with described central shaft with central shaft outside thread.
Further, the center of described central shaft is provided with blind hole, and the end of described blind hole is provided with radial direction through hole, and the end of described blind hole is provided with blind hole internal thread, for the pipe fitting of sealing gas air inlet is installed.
Further, described fastening piece is screw.
What pulley bearings box of the present utility model adopted is that the airtight comprehensive sealing mode that adds labyrinth seal seals cutting liquid, in central shaft, be provided with blind hole and radial direction through hole, on housing, be respectively arranged with seal ring shoulder, tangential flow guiding face and outage, on rear end cover, be respectively arranged with interior water conservancy diversion inclined-plane, water conservancy diversion cylndrical surface, diversion cavity, water conservancy diversion annular groove and outer water conservancy diversion inclined-plane, this just stops cutting liquid to enter the bearing inside of pulley bearings box effectively, extends the working life of bearing; In addition, because pulley bearings box of the present utility model has the Open architecture that two ends can be opened, the shaft shoulder of central shaft is designed to outer hexagonal structure, thereby in the time needing repairing bearing, dismounting bearing that can be more convenient repairs or replaces it.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the bearing box of prior art;
Fig. 2 (a) is the decomposing schematic representation of pulley bearings box of the present utility model;
Fig. 2 (b) is the cross-sectional view of pulley bearings box of the present utility model;
Fig. 3 (a) is the structural representation of one end towards housing of front cover of the present utility model;
Fig. 3 (b) is the structural representation of one end away from housing of front cover of the present utility model;
Fig. 3 (c) is the cross-sectional view of front cover of the present utility model;
Fig. 4 (a) is the structural representation of one end towards rear end cover of housing of the present utility model;
Fig. 4 (b) is the structural representation of one end towards front cover of housing of the present utility model;
Fig. 4 (c) is the cross-sectional view of housing of the present utility model;
Fig. 5 (a) is the structural representation of one end towards housing of rear end cover of the present utility model;
Fig. 5 (b) is the structural representation of one end away from housing of rear end cover of the present utility model;
Fig. 5 (c) is the cross-sectional view of rear end cover of the present utility model;
Fig. 6 (a) is the structural representation of central shaft of the present utility model;
Fig. 6 (b) is another structural representation of central shaft of the present utility model.
Fig. 7 is the schematic diagram of flowing to that has shown cutting liquid in the outage that flows into housing;
Fig. 8 is the schematic diagram of flowing to that has shown cutting liquid in the diversion cavity that flows into rear end cover.
Wherein, 1 front cover, 2 rear end covers, 21 interior water conservancy diversion inclined-planes, 22 outer water conservancy diversion inclined-planes, 23 water conservancy diversion cylndrical surface, 24 diversion cavity, 25 water conservancy diversion annular grooves, 3 housings, 31 seal ring shoulders, 32 tangential flow guiding faces, 33 outages, 4 central shafts, 41 shaft shoulders, 42 radial direction through hole, 5 bearings, 6 wavy springs, 7 jump rings, 8 interior hexagonal holes, 9 screws, 10O type circle.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The explanation of the relevant technical terms in the utility model: housing: the frame that refers to pulley bearings box; Front cover: the end cap that refers to pulley bearings box outer end (on-fixed end); Rear end cover: the end cap that refers to pulley bearings box the inner (fixed end); Central shaft: refer to the parts for pulley bearings box and lathe are fixed together; Labyrinth seal: a kind of sealing means, stops fluid to enter the sealing means at a certain position with tortuous runner.
As shown in Fig. 2 (a) and 2 (b), pulley bearings box of the present utility model comprises housing 3, front cover 1, rear end cover 2 and central shaft 4, housing 3 have run through housing 3 for settling the axial bore of bearing 5, front cover 1 passes through fastening piece, preferably screw 9, removably be connected with one end away from rear end cover 2 of housing 3, if Fig. 3 (a) is to as shown in 3 (c), on front cover 1, be provided with circular groove, O type circle 10 is installed, for preventing that cutting liquid from flowing into bearing 5 inside by the mating face place of housing 3 and front cover 1 in circular groove.In rear end cover 2, be provided with rear end cover screw thread, central shaft 4 ends are provided with central shaft outside thread, and rear end cover screw thread matches rear end cover 2 is connected with central shaft 4 with central shaft outside thread.
The inner ring of two dish bearings 5 is fixedly mounted on central shaft 4, and outer ring is fixedly mounted on housing 3 inside.Axial restraint one end of bearing 5 is fixing with the shaft shoulder 41 of central shaft 4, and the other end adopts the jump ring 7 in the circular groove of the bearing position that is arranged on housing 3 fixing.In the present embodiment, as shown in Fig. 6 (a) and 6 (b), the shaft shoulder 41 of central shaft 4 of the present utility model is designed to outer hexagonal structure, rather than the circular shaft shoulder 41 of the prior art, cancelled the interior hexagonal hole 8 of central shaft 4 blind hole inside simultaneously, the hexagonal shaped shaft shoulder 41 of central shaft 4 has not only substituted the interior hexagonal hole 8 of blind hole in prior art, has also reduced preparation process and fabricating cost.
The mode that rear end cover 2 use are threaded is arranged on central shaft 4, and its axially locating is to withstand on the inner ring of outermost bearing to reach the object of location by the projection of inner side.The center of central shaft 4 has a blind hole, the end of blind hole has a radial direction through hole 42, and blind hole and radial direction through hole 42 form a T shape of falling, for entering of sealing gas, the end of blind hole is provided with blind hole internal thread, for the pipe fitting of sealing gas air inlet is installed.
In use, the central shaft outside thread of central shaft 4 ends and the screw-internal thread fit of lathe support are mounted on bearing box on lathe, connected fixing also have rear end cover 2 and the bearing inner race fixing with central shaft 4.In the time that lathe moves, because housing 3 is to be connected with central shaft 4 by inner bearing 5, therefore housing 3 can be around the shaft axis rotation of central shaft 4 with front cover 1.
If Fig. 4 (a) is to as shown in 4 (c), the inner chamber inner edge place of the close axial bore of housing 3 is provided with seal ring shoulder 31, the inner chamber outer rim place away from axial bore of housing 3 is provided with tangential flow guiding face 32, the outer rim place of tangential flow guiding face 32 is provided with outage 33, and the effect of seal ring shoulder 31 is to carry out a water conservancy diversion sealing to entering housing 3 cutting liquid inner and that be attached on housing 3; The effect of tangential flow guiding face 32 is, in the time of work, the cutting liquid being attached on housing 3 is guided to outage 33 edges; The effect of outage 33 is that the cutting liquid that tangential flow guiding face 32 water conservancy diversion are come is discharged pulley bearings box, and in the present embodiment, the outer rim place of tangential flow guiding face 32 is provided with 3 outages 33, and the angular interval between each outage 33 is 120 °.
If Fig. 5 (a) is to as shown in 5 (c), the inside of one end towards housing 3 of rear end cover 2 is provided with interior water conservancy diversion inclined-plane 21, and cutting liquid is played to guide functions; The inside of one end towards housing 3 of rear end cover 2 is also provided with water conservancy diversion cylndrical surface 23, for cutting liquid being carried out to last water conservancy diversion sealing; Interior water conservancy diversion inclined-plane 21 and water conservancy diversion cylndrical surface 23 are formed as diversion cavity 24, and one end away from housing 3 of rear end cover 2 is provided with outer water conservancy diversion inclined-plane 22, and the lid periphery place of rear end cover 2 is provided with water conservancy diversion annular groove 25.
Under pulley bearings box state of rest of the present utility model, first cutting liquid is flowed down by pulley bearings box top, if the outage 33 of housing 3 upward, cutting liquid will flow on rear end cover 2 through outage 33, because the lid periphery place of rear end cover 2 is provided with water conservancy diversion annular groove 25, cutting liquid can flow to rear end cover 2 belows along water conservancy diversion annular groove 25, and finally discharges the flow direction that the direction shown in the arrow in Fig. 7 is cutting liquid along the gap between rear end cover 2 and housing 3; If there is part cutting liquid to enter housing 3, the shoulder of the seal ring on housing 3 31 will carry out the sealing of choked flow for the second time to cutting liquid so, and cutting liquid flow to the tangential flow guiding face 32 in housing 3 below of housing 3, and flows out housing 3 through tangential flow guiding face 32; For the part cutting liquid that further flow to again the diversion cavity 24 in rear end cover 2, the gap of being flowed through between rear end cover 2 and housing 3 in interior water conservancy diversion inclined-plane 21 in rear end cover 2 flows to the tangential flow guiding face 32 of housing 3, and finally flow to the bottom of housing 3 and discharge the flow direction that the direction shown in the arrow in Fig. 8 is cutting liquid along the tangential flow guiding face 32 of housing 3; For the cutting liquid of the exterior edge face of one end away from housing 3 of the rear end cover 2 of flowing through, owing to being provided with outer water conservancy diversion inclined-plane 22 in one end away from housing 3 of rear end cover 2, even if this exterior edge face and housing 3 are not coplanar, cutting liquid also can flow along this outer water conservancy diversion inclined-plane 22 to the direction contrary with housing 3, and finally flowing out rear end cover 2, this has just solved pulley bearings box of the prior art due to the not coplanar problem of cutting liquid to housing 3 internal flows that cause herein.
Pulley bearings box of the present utility model is in running, housing 3 and front cover 1 High Rotation Speed under the drive of steel wire, the cutting liquid that the centrifugal force that housing 3 High Rotation Speeds produce makes to flow in housing 3 gets rid of to edge until enter the inner edge of tangential flow guiding face 32, due to the setting that has a certain degree of tangential flow guiding face 32 and the shaft axis of central shaft 4, so the centrifugal force of the outer rim of tangential flow guiding face 32 is greater than the centrifugal force of its inner rim, therefore cutting liquid can flow to outer rim along tangential flow guiding face 32, because the outer rim place at tangential flow guiding face 32 is provided with three outages 33, under the effect of centrifugal force, accumulate the cutting liquid that is stored in tangential flow guiding face 32 outer rims and will discharge pulley bearings box inside through outage 33, this has just effectively stoped generation cutting liquid to deposit in pulley bearings box and has caused the situation of its wearing and tearing aggravation, pulley bearings box of the prior art cannot be realized this function.
In the time that bearing 5 wearing and tearing of pulley bearings box inside need Replacement and Repair, the front cover of pulley bearings box 1 and the retaining screw 9 of housing 3 can be pulled down, fix the outer hexagonal shaped shaft shoulder 41 of central shaft 4 with 12mm socket wrench, then rear end cover 2 is pulled down, this has just been avoided the situation that causes rear end cover 2 to open after 8 strokes of silks of hexagonal hole in the blind hole of central shaft 4 of prior art middle pulley bearing box.
In the time getting the bearing 5 of wearing and tearing, because front cover 1 and rear end cover 2 can be opened, therefore bearing 5 directly can be taken out from front cover 1, and without the jump ring 7 of dismantling housing 3 inner sides, certainly also jump ring 7 can be pulled down from rear end cover 2 and take out bearing 5, and can complete maintenance operation without any special professional tool.The bearing 5 of changing if there is need is because of the serious wear situation that Internal and external cycle separates in unloading process, and the pulley bearings box of prior art cannot take out the bearing outer ring of staying housing 3 inside, and this just makes pulley bearings box housing 3 use and scraps.Housing 3 two ends of pulley bearings box of the present utility model are open, even also can bearing outer ring be ejected from the other end by one end of housing 3 so bearing outer ring is stayed in housing 3, this is also that in pulley bearings box maintenance process of the prior art, institute is irrealizable.
The above embodiment has only expressed mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. a pulley bearings box, it is characterized in that, comprise housing, front cover, rear end cover and central shaft, described housing have run through described housing for settling the axial bore of bearing, described front cover is removably connected with one end away from described rear end cover of described housing by fastening piece, described rear end cover is connected with one end of described central shaft, wherein
The inner chamber inner edge place of the close axial bore of described housing is provided with seal ring shoulder, and the inner chamber outer rim place away from axial bore of described housing is provided with tangential flow guiding face, and the outer rim place of described tangential flow guiding face is provided with at least one outage;
The inside of one end towards described housing of described rear end cover is provided with interior water conservancy diversion inclined-plane, the inside of one end towards described housing of described rear end cover is also provided with water conservancy diversion cylndrical surface, described interior water conservancy diversion inclined-plane and described water conservancy diversion cylindrical become diversion cavity, one end away from described housing of described rear end cover is provided with outer water conservancy diversion inclined-plane, and the lid periphery place of described rear end cover is provided with water conservancy diversion annular groove.
2. pulley bearings box according to claim 1, is characterized in that, the angled setting of center line of the tangential flow guiding face of described housing and described central shaft.
3. pulley bearings box according to claim 2, is characterized in that, the quantity of described outage is 3, and the angular interval between described each outage is 120 °.
4. pulley bearings box according to claim 1, is characterized in that, the shaft shoulder of described central shaft is designed to outer hexagonal structure.
5. pulley bearings box according to claim 1, is characterized in that, on described front cover, is provided with circular groove, and O type circle is installed in described circular groove.
6. pulley bearings box according to claim 1, is characterized in that, the inner ring of two dish bearings is fixedly mounted on described central shaft, and outer ring is fixedly mounted on described enclosure interior.
7. pulley bearings box according to claim 1, is characterized in that, in the circular groove of the bearing position of described housing, jump ring is installed.
8. pulley bearings box according to claim 1, it is characterized in that, in described rear end cover, be provided with rear end cover screw thread, described central shaft end is provided with central shaft outside thread, and rear end cover screw thread matches described rear end cover is connected with described central shaft with central shaft outside thread.
9. according to the arbitrary described pulley bearings box of claim 1-8, it is characterized in that, the center of described central shaft is provided with blind hole, and the end of described blind hole is provided with radial direction through hole, the end of described blind hole is provided with blind hole internal thread, for the pipe fitting of sealing gas air inlet is installed.
10. pulley bearings box according to claim 1, is characterized in that, described fastening piece is screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796798.6U CN203614599U (en) | 2013-12-06 | 2013-12-06 | Pulley bearing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796798.6U CN203614599U (en) | 2013-12-06 | 2013-12-06 | Pulley bearing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614599U true CN203614599U (en) | 2014-05-28 |
Family
ID=50767248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320796798.6U Expired - Fee Related CN203614599U (en) | 2013-12-06 | 2013-12-06 | Pulley bearing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614599U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196899A (en) * | 2014-06-19 | 2014-12-10 | 北京鼎臣高科技有限公司 | Guide structure and main shaft box with same |
| CN107524703A (en) * | 2016-06-21 | 2017-12-29 | 张家港市思杰五金工具有限公司 | Pulley spindle |
| CN108700114A (en) * | 2016-03-01 | 2018-10-23 | 铁姆肯公司 | For the device and method to bearing assembly preload |
-
2013
- 2013-12-06 CN CN201320796798.6U patent/CN203614599U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196899A (en) * | 2014-06-19 | 2014-12-10 | 北京鼎臣高科技有限公司 | Guide structure and main shaft box with same |
| CN108700114A (en) * | 2016-03-01 | 2018-10-23 | 铁姆肯公司 | For the device and method to bearing assembly preload |
| US10794421B2 (en) | 2016-03-01 | 2020-10-06 | The Timken Company | Apparatus and method for preloading bearing assemblies |
| CN107524703A (en) * | 2016-06-21 | 2017-12-29 | 张家港市思杰五金工具有限公司 | Pulley spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20161206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |