CN104165190A - Bearing seat and multifunctional machine comprising the bearing seat - Google Patents
Bearing seat and multifunctional machine comprising the bearing seat Download PDFInfo
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- CN104165190A CN104165190A CN201310182734.1A CN201310182734A CN104165190A CN 104165190 A CN104165190 A CN 104165190A CN 201310182734 A CN201310182734 A CN 201310182734A CN 104165190 A CN104165190 A CN 104165190A
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- bearing
- heat
- bearing support
- sleeve
- inner sleeve
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Abstract
The invention discloses a bearing seat, which is used to install a bearing. The bearing seat comprises a sleeve cylinder, the sleeve cylinder comprises an inner sleeve for installing a bearing and an external sleeve for installing periphery of the inner sleeve, and a heat insulation cavity that goes through the sleeve cylinder in the axial direction is arranged between the inner sleeve and the outer sleeve. An air layer is formed in the heat insulation cavity, and the air layer can relieve the heat dissipation in the radical direction. Moreover the inner sleeve and the outer sleeve are provided, and thus the heat dissipation area is enlarged. At the same time cross-ventilation is formed in the heat insulation cavity that goes through the sleeve cylinder in the axial direction, so the heat which is transmitted to the bearing seat from the bearing can be radiated immediately. Through the heat insulation and heat dissipation of the bearing seat, the heat generated by the bearing can be dissipated for the most part, and thus the bearing seat has a good heat dissipating function and is capable of preventing the bearing from transmitting a great amount of heat to other parts that contact the bearing. The invention further discloses a multifunctional machine comprising the bearing seat, and the multifunctional machine has a good heat dissipating function.
Description
Technical field
The present invention relates to electric tool, particularly relate to a kind of multifunctional machine and bearing support thereof.
Background technique
Multifunctional machine is the swing class power tool of the common hand-held of industry, and its working principle is that output shaft is done oscillating motion around the shaft axis of self, thereby drives the working head oscillating motion that is arranged on output shaft end.Common working head comprises straight blade, saw blade, triangle frosted dish and shovel type scraper etc.Therefore, when user is provided with after different working heads on output shaft, can realize multiple different operating function, as sawed, cut, grind, scrape etc., to adapt to different work requirements.Multifunctional machine is used bearing support to fix bearing, and during multifunctional machine work, rotating speed, up to 18000 rpms, can produce amount of heat, and wherein main heating source is bearing.Heat is passed to bearing support, after pass to again the shell of fixed bearing block, cause shell temperature rise too high.Because shell is gripping site, excess Temperature can cause potential safety hazard.Cause existing bearing support to make multifunctional machine heat at work effectively fall apart and to remove.
Summary of the invention
Based on this, the good bearing support of a kind of heat sinking function is provided and there is the multifunctional machine of this bearing support.
A bearing support, for bearing is installed, described bearing support comprises sleeve, described sleeve comprises for bearings mounted inner sleeve and is arranged at the overcoat of described inner sleeve periphery, is formed with the heat-insulation chamber of the described sleeve of axial perforation between described inner sleeve and described overcoat.
In an embodiment, described bearing support further comprises base therein, and described sleeve extends from described base, and described base connects described inner sleeve and described overcoat, offers the through hole that is communicated with described heat-insulation chamber on described base.
Therein in an embodiment, described sleeve also comprises the several gussets that connect described inner sleeve and described overcoat, several circular arcs that described heat-insulation chamber is divided into along the circumferential direction by several described gussets are slotted, described through hole at least arrange one and with described in one of them fluting be connected.
In an embodiment, described gusset has four therein, and described heat-insulation chamber is divided into four described flutings, described through hole have four and with the corresponding connections one by one respectively of four described flutings.
In an embodiment, described inner sleeve arranges cylindrical host cavity therein, and described base is provided with stepped part in a side of described inner sleeve towards described host cavity, and described bearing is contained in described host cavity and is held in described stepped part.
A multifunctional machine with bearing support as previously described, described multifunctional machine comprises casing, be arranged at the motor in described casing, the main shaft being driven by described motor, shift fork and extend the output shaft of described casing; Described shift fork is installed on described output shaft and with described main shaft and is connected, and described main shaft drives described output shaft around self axis oscillating by described shift fork, and wherein said bearing is located described main shaft and is installed in described bearing support.
In an embodiment, described multifunctional machine further comprises corresponding described bearing and bearing support setting and is fixed on the fan on described main shaft therein.
In an embodiment, described multifunctional machine further comprises the aluminum hull of fixing described bearing support therein, and described aluminum hull is provided with the perforate being communicated with described through hole, and described perforate is connected with the gap between described aluminum hull and casing.
Therein in an embodiment, described multifunctional machine further comprises the Sealing of the confined space sealing that will be formed in described casing, and a part for described bearing and shift fork is contained in described confined space, and described perforate is positioned at outside described confined space.
In an embodiment, described Sealing extends from described aluminum hull therein.
Above-mentioned bearing support, forms air layer and can slow down the outside radially transmission of heat that bearing produces, and arranging of inner sleeve and overcoat has increased heat diffusion area in heat-insulation chamber; Can form cross-ventilation by axially connecting the heat-insulation chamber of sleeve simultaneously, the heat that is passed to bearing support from bearing can be distributed in time; By the heat insulation of bearing support and heat radiation, the heat overwhelming majority that bearing produces can be distributed by bearing support, thereby this bearing support has good heat sinking function, can stop to the miscellaneous part contacting with bearing support and transmit amount of heat.And the multifunctional machine with this bearing support has good heat sinking function.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of present embodiment multifunctional machine;
Fig. 2 is that Fig. 1 is along the sectional view of A-A line;
Fig. 3 is the structural representation of present embodiment bearing support;
Fig. 4 is that present embodiment bearing support is along the sectional view of through hole.
Multifunctional machine, 100 casings, 110 motors, 120
Main shaft, 130 shift forks, 140 output shafts, 150
Bearing, 160 bearing supports, 170 sleeves, 172
Inner sleeve, 1722 host cavities, 1723 overcoats, 1724
Heat-insulation chamber, 1726 gussets, 1728 bases, 174
Through hole, 1742 stepped part, 1744 fans, 180
Aluminum hull, 190 Sealings, 192 perforates, 194
Embodiment
Please refer to the drawing 1 and Fig. 2, present embodiment discloses a kind of multifunctional machine 100, comprises casing 110, is arranged at the motor 120 in casing 110, the main shaft 130 being driven by motor 120, shift fork 140 and extends the output shaft 150 of casing 110.Shift fork 140 is installed on output shaft 150 and with main shaft 130 and is connected, and main shaft 130 drives output shaft 150 around self axis oscillating by shift fork 140.Multifunctional machine 100 also comprises the bearing 160 of positioning spindle 130 and for the bearing support 170 of bearing 160 is installed.
Please refer to the drawing 2 is to Fig. 4, and bearing support 170 comprises sleeve 172, and sleeve 172 comprises for the inner sleeve 1722 of bearing 160 being installed and being arranged at the overcoat 1724 of inner sleeve 1722 peripheries.Between inner sleeve 1722 and overcoat 1724, be formed with the heat-insulation chamber 1726 of axial perforation sleeve 172.The interior formation air layer of heat-insulation chamber 1726 can slow down the outside radially transmission of heat that bearing 160 produces, and inner sleeve 1722 has increased heat diffusion area with arranging of overcoat 1724; Can form cross-ventilation by axially connecting the heat-insulation chamber 1726 of sleeve 172 simultaneously, the heat that is passed to bearing support 170 from bearing 160 can be distributed in time; By the heat insulation of bearing support 170 and heat radiation, the heat overwhelming majority that bearing 160 produces can be distributed by bearing support 170, thereby this bearing support 170 has good heat sinking function, can stop to the miscellaneous part contacting with bearing support 170 (as the aluminum hull that can make referrals to below) and transmit amount of heat.And the multifunctional machine 100 with this bearing support 170 has good heat sinking function.
Bearing support 170 further comprises base 174, and sleeve 172 extends from base 174, and base 174 connects inner sleeve 1722 and overcoat 1724, offers the through hole 1742 that is communicated with heat-insulation chamber 1726 on base 174.Through hole 1742 formation cross-ventilation is set, to give out in time heat.Sleeve 172 also comprises the several gussets 1728 that connect inner sleeve 1722 and overcoat 1724, and several circular arcs that heat-insulation chamber 1726 is divided into along the circumferential direction by several gussets 1728 are slotted, to guarantee the setting of air layer and the intensity of bearing support 170.Through hole 1742 at least arranges one and be connected with one of them fluting, and the quantity of through hole 1742 can be set as required on base 174.In a specific embodiment, gusset 1728 has four, and heat-insulation chamber 1726 is divided into four flutings, through hole 1742 have four and with four respectively corresponding connections one by one of fluting.Certainly, in other embodiments, bearing support 170 can only have sleeve 172, by other mode positioning inner sleeves 1722 such as casing 110 grades and overcoat 1724.Inner sleeve 1722 and overcoat 1724 can coaxially arrange, also can disalignment setting, and selected according to concrete needs.
Inner sleeve 1722 arranges cylindrical host cavity 1723, and base 174 is provided with stepped part 1744 in a side of inner sleeve 1722 towards host cavity 1723, and bearing 160 is contained in host cavity 1723 and is held in stepped part 1744.Arranging of stepped part 1744 guarantees the stable bearing support 170 that is arranged on of bearing 160.Base 174 and sleeve 172 are one-body molded, and moulding is simple, and the setting of heat-insulation chamber 1726 and through hole 1742 can save material, thereby reduce costs.
Please refer to the drawing 1, multifunctional machine 100 also comprises that corresponding bearing 160 and bearing support 170 arrange and be fixed on the fan 180 on main shaft 130.When motor 120 drive main spindle 130 are rotated, synchronously drive fan 180 is rotated, and fan 180 absorbs the heat of bearing 160 and bearing support 170.The heat-insulation chamber 1746 of bearing support 170 and through hole 1722 is communicated with and forms cross-ventilations, and the Quick diffusing of heat when facilitating fan 180 to rotate strengthens the heat sinking function of bearing support 170.
Multifunctional machine 100 also comprises the aluminum hull 190 of fixed bearing block 170.The fraction heat of bearing support 170 is passed to aluminum hull 190 and distributes by aluminum hull 190.Bearing support 170 is by the heat radiation of the heat insulation and through hole 1722 of heat-insulation chamber 1476, the most of heat passing over from bearing 160 can be spaced and distribute, thereby only have fraction heat to be passed to aluminum hull 190, can not cause aluminum hull 190 temperature rises too high and cause potential safety hazard.Thereby it is safer that multifunctional machine 100 is used.
Please refer to the drawing 1, aluminum hull 190 is provided with the perforate 194 being communicated with through hole 1742, and perforate 194 is connected with the gap between aluminum hull 190 and casing 110.Thereby aluminum hull 190, in fixed bearing block 170, still can make the air in bearing support 170 realize convection current by perforate 194 is set, be conducive to heat radiation.Aluminum hull 190 further extends and will be formed at the Sealing 192 of the confined space sealing in casing 110, and perforate 194 is positioned at outside confined space.For example, so the setting of through hole 1742 does not affect the airtight requirement (, being provided with lubricant oil in shift fork 140, for preventing that oil leak from need to have a confined space) of multifunctional machine 100 parts.Certainly, in other embodiments, also Sealing can be set separately, when meeting the airtight requirement of multifunctional machine 100, make the bearing support 170 with heat-insulation chamber 1726 realize cross-ventilation, well meet radiating requirements.
Multifunctional machine 100 is also provided with the cell bag (not shown) to motor 120 power supplies.Drive motor 120, after rotating, motor 120 drive main shaft 130 to rotate, main shaft 130 drives fork 140 to swing by the eccentric part (not shown) arranging thereon, fork 130 is installed on output shaft 150, and then drive output shaft 150 rotary oscillations, output shaft 150 drives and is installed on working head (not shown) rotary oscillation on output shaft 150, and then makes working head work.When main shaft 150 rotates, bearing 160 produces a large amount of heats, and the fan 180 rotating with main shaft 150 absorbs a part of heat, and a part of heat is passed to the bearing support 170 contacting with bearing 160.
Bearing support 170 is provided with heat-insulation chamber 1726 and forms air heat-insulation layers, the radially transmission that retarding heat is outside, and between inner sleeve 1722 and overcoat 1724, form the setting of heat-insulation chamber 1726 can increasing heat radiation area.Bearing support 170 is also provided with the through hole 1742 being communicated with heat-insulation chamber 1726, through hole 1742 is communicated with the perforate 194 of aluminum hull 190 again, heat-insulation chamber 1726 and through hole 1742 have formed the air port of bearing support 170, by this air port, form cross-ventilation, can effectively lower bearing support 170 and transmit large calorimetric to aluminum hull 190.And then can not cause aluminum hull 190 excess Temperatures, just can not produce potential safety hazard.Bearing support 170 has good heat sinking function with the multifunctional machine 100 with this bearing support 170.
The above embodiment has only expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a bearing support, be used for installing bearing, it is characterized in that, described bearing support comprises sleeve, described sleeve comprises for bearings mounted inner sleeve and is arranged at the overcoat of described inner sleeve periphery, is formed with the heat-insulation chamber of the described sleeve of axial perforation between described inner sleeve and described overcoat.
2. bearing support according to claim 1, is characterized in that, further comprises base, and described sleeve extends from described base, and described base connects described inner sleeve and described overcoat, offers the through hole that is communicated with described heat-insulation chamber on described base.
3. bearing support according to claim 2, it is characterized in that, described sleeve also comprises the several gussets that connect described inner sleeve and described overcoat, several circular arcs that described heat-insulation chamber is divided into along the circumferential direction by several described gussets are slotted, described through hole at least arrange one and with described in one of them fluting be connected.
4. bearing support according to claim 3, is characterized in that, described gusset has four, and described heat-insulation chamber is divided into four described flutings, described through hole have four and with the corresponding connections one by one respectively of four described flutings.
5. bearing support according to claim 2, is characterized in that, described inner sleeve arranges cylindrical host cavity, and described base is provided with stepped part in a side of described inner sleeve towards described host cavity, and described bearing is contained in described host cavity and is held in described stepped part.
6. a multifunctional machine with the bearing support as described in any one in claim 1 to 5, it is characterized in that, described multifunctional machine comprises casing, be arranged at the motor in described casing, the main shaft being driven by described motor, shift fork and extend the output shaft of described casing; Described shift fork is installed on described output shaft and with described main shaft and is connected, and described main shaft drives described output shaft around self axis oscillating by described shift fork, and wherein said bearing is located described main shaft and is installed in described bearing support.
7. multifunctional machine according to claim 6, is characterized in that, further comprises corresponding described bearing and bearing support setting and is fixed on the fan on described main shaft.
8. multifunctional machine according to claim 6, is characterized in that, further comprises the aluminum hull of fixing described bearing support, and described aluminum hull is provided with the perforate being communicated with described through hole, and described perforate is connected with the gap between described aluminum hull and casing.
9. multifunctional machine according to claim 8, it is characterized in that, further comprise and will be formed at the Sealing of the confined space sealing in described casing, a part for described bearing and shift fork is contained in described confined space, and described perforate is positioned at outside described confined space.
10. multifunctional machine according to claim 9, is characterized in that, described Sealing extends from described aluminum hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182734.1A CN104165190A (en) | 2013-05-16 | 2013-05-16 | Bearing seat and multifunctional machine comprising the bearing seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182734.1A CN104165190A (en) | 2013-05-16 | 2013-05-16 | Bearing seat and multifunctional machine comprising the bearing seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104165190A true CN104165190A (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310182734.1A Pending CN104165190A (en) | 2013-05-16 | 2013-05-16 | Bearing seat and multifunctional machine comprising the bearing seat |
Country Status (1)
| Country | Link |
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| CN (1) | CN104165190A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764365A (en) * | 2017-01-19 | 2017-05-31 | 张家港市新贝机械有限公司 | For the bearing assembly in the crystal system that dehumidifies |
| EP4020774A1 (en) * | 2020-12-25 | 2022-06-29 | Huawei Digital Power Technologies Co., Ltd. | Motor rotor, motor, and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2910845A1 (en) * | 1979-03-20 | 1980-10-02 | Bosch Gmbh Robert | ELECTRICALLY DRIVED HAND TOOL, ESPECIALLY DRILLING MACHINE |
| JPS567119U (en) * | 1979-06-28 | 1981-01-22 | ||
| JP2003056584A (en) * | 2001-08-14 | 2003-02-26 | Nsk Ltd | Dynamic characteristics measurement device for ball bearing |
| EP1775489A2 (en) * | 2005-10-17 | 2007-04-18 | Rexnord Industries, Inc. | Vented bearing assembly |
| JP2008110426A (en) * | 2006-10-30 | 2008-05-15 | Ntn Corp | Spindle device |
| CN101733740A (en) * | 2008-11-19 | 2010-06-16 | 日立工机株式会社 | Power tool |
| EP2383482B1 (en) * | 2010-04-28 | 2013-03-06 | Jtekt Corporation | Rolling bearing device with fluid bypass passage-ways. |
-
2013
- 2013-05-16 CN CN201310182734.1A patent/CN104165190A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2910845A1 (en) * | 1979-03-20 | 1980-10-02 | Bosch Gmbh Robert | ELECTRICALLY DRIVED HAND TOOL, ESPECIALLY DRILLING MACHINE |
| JPS567119U (en) * | 1979-06-28 | 1981-01-22 | ||
| JP2003056584A (en) * | 2001-08-14 | 2003-02-26 | Nsk Ltd | Dynamic characteristics measurement device for ball bearing |
| EP1775489A2 (en) * | 2005-10-17 | 2007-04-18 | Rexnord Industries, Inc. | Vented bearing assembly |
| JP2008110426A (en) * | 2006-10-30 | 2008-05-15 | Ntn Corp | Spindle device |
| CN101733740A (en) * | 2008-11-19 | 2010-06-16 | 日立工机株式会社 | Power tool |
| EP2383482B1 (en) * | 2010-04-28 | 2013-03-06 | Jtekt Corporation | Rolling bearing device with fluid bypass passage-ways. |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764365A (en) * | 2017-01-19 | 2017-05-31 | 张家港市新贝机械有限公司 | For the bearing assembly in the crystal system that dehumidifies |
| EP4020774A1 (en) * | 2020-12-25 | 2022-06-29 | Huawei Digital Power Technologies Co., Ltd. | Motor rotor, motor, and vehicle |
| US11863029B2 (en) | 2020-12-25 | 2024-01-02 | Huawei Digital Power Technologies Co., Ltd. | Motor rotor, motor, and vehicle |
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Application publication date: 20141126 |
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