CN204179801U - Grinding head motor axle head waterproof construction - Google Patents
Grinding head motor axle head waterproof construction Download PDFInfo
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- CN204179801U CN204179801U CN201420630613.9U CN201420630613U CN204179801U CN 204179801 U CN204179801 U CN 204179801U CN 201420630613 U CN201420630613 U CN 201420630613U CN 204179801 U CN204179801 U CN 204179801U
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- protecgulum
- gap
- machine shaft
- grinding wheel
- wheel stand
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Abstract
The utility model discloses a kind of grinding head motor axle head waterproof construction, comprise machine shaft, grinding wheel stand, the protecgulum be arranged on successively from axle head machine shaft, between the end face that described grinding wheel stand is relative with protecgulum, there is anti-water space, described anti-water space radial direction is followed successively by the first vertical gap, labyrinth fit clearance, the second vertical gap, gap, slope and vertical seam fit clearance from inside to outside, the width of the vertical section of described seam fit clearance and labyrinth clearance is 0.1-0.2mm, and bottom, gap, described slope is positioned at grinding wheel stand side, top is positioned at protecgulum side.Improve the water resistance of grinding head motor axle head, avoid water and enter motor internal and cause component corrosion, improve the useful life of motor component.
Description
Technical field
The utility model belongs to technical field of motors, relates to grinding head motor, particularly relates to the axle head structure of grinding head motor.
Background technology
Grinding head motor is when grinding glass, and emery wheel, when rotation, needs with water column spraying cooling, and spray position is positioned at the end of machine shaft.The hydraulic pressure of spray is higher, and the current splashed out are easy to enter motor internal, cause corrosion, and finally cause parts damages to parts.Therefore, be necessary have water to enter motor internal when grinding head motor axle head design waterproof construction is to avoid grinding head motor to work.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of grinding head motor axle head waterproof construction, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of grinding head motor axle head waterproof construction, comprise machine shaft, grinding wheel stand, the protecgulum be arranged on successively from axle head machine shaft, it is characterized in that: between the end face that described grinding wheel stand is relative with protecgulum, there is anti-water space, described anti-water space radial direction is followed successively by the first vertical gap, labyrinth fit clearance, the second vertical gap, gap, slope and vertical seam fit clearance from inside to outside, the width of the vertical section of described seam fit clearance and labyrinth clearance is 0.1-0.2mm, and bottom, gap, described slope is positioned at grinding wheel stand side, top is positioned at protecgulum side.
In further improvement of the utility model, the front edge of described protecgulum has right angle seam thus gap, slope is positioned at inside seam fit clearance in upper end and forms gap, right angle.
In embodiment of the present utility model, between described protecgulum front end and machine shaft, be provided with outside framework oil seal; Described protecgulum inside has the stepped cavity of wound motor rotating shaft, the bearing of inner ring and bearing fit, outer ring and front cover match is provided with in described stepped cavity, the front end of described bearing is by being fixed on machine shaft upper stop piece and locking nut backstop, and the rear end of described bearing is by being enclosed within described machine shaft and the internal bearing cover backstop be fixed on protecgulum.
Described grinding wheel stand is fixed on the termination of described machine shaft by the mode of hot jacket interference fit.
Be exactly more than grinding head motor axle head waterproof construction of the present utility model, the anti-water space between grinding wheel stand and protecgulum adopts slope to add the design in labyrinth.Adopt ramp designs, reduce on the one hand water and directly enter handling capacity in gap from outside, on the one hand, enter the water in gap, also can decrease resistance to outflow because of slope, be easy to be thrown out of.When water flows in gap time, due to the effect of gravity own, part flows out along bottom, not do not flow out, will the centrifugal force that produces by the grinding wheel stand of High Rotation Speed throw away, avoid because gap internal water accumulation, to the corrosion that parts cause, add the useful life of parts.
Therefore, the utility model improves the water resistance of grinding head motor axle head, avoids water and enters motor internal and cause component corrosion, improve the useful life of motor component.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, grinding head motor axle head waterproof construction of the present utility model, comprises machine shaft 100, grinding wheel stand 200 and protecgulum 500.
Grinding wheel stand 200 and protecgulum 500 are arranged on successively on machine shaft 500 from axle head position, have anti-water space between grinding wheel stand 200 and the relative end face of protecgulum 500.
Particularly, grinding wheel stand 200 adopts hot cover process to be interference fitted on machine shaft 100 and rotates with machine shaft 100.Machine shaft 100 and the interference fit of grinding wheel stand 200, eliminate fit clearance, avoids current and directly enter parts inside by machine shaft 100 end and cause damage to parts.Be provided with outside framework oil seal 300 between protecgulum 500 front end and machine shaft 100, add sealing property between protecgulum 500 and machine shaft 100, anti-sealing infiltrates.
Protecgulum 500 inside is provided with the stepped cavity of wound motor rotating shaft 100, is placed with bearing 600 in stepped cavity, and the outer ring of its middle (center) bearing 600 coordinates with protecgulum 500, and inner ring coordinates with machine shaft 100.Machine shaft 100 is in the process of rotating, easily there is axial endplay in bearing 600, therefore being fixed with at the first cascaded surface 501 of stepped cavity the internal bearing cover 700 be enclosed within machine shaft 100 by bolt 502, this internal bearing cover 700 withstands the rear end face of bearing 600, prevents bearing 600 play backward.
The front end of bearing 600 in second-order tread 502 position then by the catch 902 be fixed on machine shaft 100 and locking nut 901 backstop.
Grinding wheel stand 200, when High Rotation Speed, is splashed to the water of grinding wheel stand 200 off-balancesheet disc, above cannot resting on, because the huge centrifugal force that High Rotation Speed produces, is just thrown out easily very much.Because the hydraulic pressure of water column is high, flow velocity is fast, so the water yield of splashing is large, although part water is thrown out of at grinding wheel stand 200 outer round surface, but still has part water to flow to grinding wheel stand 200 with the fit clearance of protecgulum 500.
For this reason, anti-water space between grinding wheel stand 200 and protecgulum 500 have employed the structure that slope adds labyrinth, particularly: anti-water space radial direction is followed successively by the first vertical gap 801, the vertical gap 803 of labyrinth fit clearance 802, second, gap, slope 804 and vertical seam fit clearance 605 from inside to outside.The angle of inclination in gap, slope 804 is 45 °, and bottom is positioned at grinding wheel stand 200 side, top is positioned at protecgulum 500 side.The front edge of protecgulum 500 has right angle seam thus gap, slope 804 is positioned at inside seam fit clearance 805 in upper end and forms gap, right angle 806.Front end housing 500 edge seam adopts right-angle structure, directly effectively can stop the water column of high pressure, it is made cannot directly to enter inside, labyrinth, adding the centrifugal force that High Rotation Speed grinding wheel stand produces, brushed out by the water entered in gap, major part just can be directly blocked in beyond seam gap with the water of very large pressure like this.
Such hermetically-sealed construction, reduces on the one hand water and directly enters handling capacity in anti-water space from outside, on the one hand, enter the water in anti-water space, also can decrease resistance to outflow because of gap, slope, be easy to be thrown out of.When water flows in anti-water space time, due to the effect of gravity own, part flows out along bottom, do not flow out, will the centrifugal force that produces by the grinding wheel stand 200 of High Rotation Speed throw away, avoid, because of anti-water space internal water accumulation, corrosion is caused to parts, improve the useful life of parts.
Labyrinth fit clearance 802 between grinding wheel stand 200 and protecgulum 500 add water by difficulty, at water behind gap, slope 804, major part is thrown out of, a little part is not thrown out of, will flow in labyrinth, flow to the water in labyrinth, also can be thrown out of.Because protecgulum 500 is built with outside framework oil seal, prevent current to infilter components interior further, current along the Clearance Flow in labyrinth, then will be got rid of in gap, slope, are finally thrown away by High Rotation Speed grinding wheel stand 200.
In the utility model, the width of the vertical section 812 of seam fit clearance 805 and labyrinth clearance 802 is only 0.1-0.2mm.When water flows into after in seam fit clearance 805, water, while entering, has discharged air in seam fit clearance 805, part water due to the effect of gravity in utero fascinated along slit flow, part has rested in seam fit clearance 805.Because seam fit clearance 805 is too small, add that the air part in seam fit clearance 805 is discharged, so seam fit clearance 805 just defines capillarity, namely the air pressure of seam fit clearance 805 inside is greater than outside air pressure, and current cannot continue to flow into.
Part has flowed into the water in labyrinth, when the vertical section 812 through labyrinth clearance 802, also can rest in the vertical section 8128 of gap labyrinth clearance 802 because of capillarity, as for the final water flowing into the outside framework oil seal groove place of protecgulum 500, very little, add skeleton oil seal effect, the water at oil seal groove place also cannot enter components interior, avoids and causes corrosion and damage to outside framework oil seal 300, bearing 600, internal bearing cover 700, locking nut 901, catch 902.
By foregoing detailed description, can find out, the utility model solves waterproof part and leaks water problem, avoids corrosion-damaged, life-span of improve parts of motor component.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; have in any art and usually know the knowledgeable; if in the protection range not departing from the claim that the utility model proposes; the Equivalent embodiments that local done by the technology contents utilizing the utility model to disclose is changed or modified, and do not depart from technical characteristic content of the present utility model, all still belong in the scope of the utility model technical characteristic.
Claims (4)
1. a grinding head motor axle head waterproof construction, comprise machine shaft, grinding wheel stand, the protecgulum be arranged on successively from axle head machine shaft, it is characterized in that: between the end face that described grinding wheel stand is relative with protecgulum, there is anti-water space, described anti-water space radial direction is followed successively by the first vertical gap, labyrinth fit clearance, the second vertical gap, gap, slope and vertical seam fit clearance from inside to outside, the width of the vertical section of described seam fit clearance and labyrinth clearance is 0.1-0.2mm, and bottom, gap, described slope is positioned at grinding wheel stand side, top is positioned at protecgulum side.
2. grinding head motor axle head waterproof construction according to claim 1, is characterized in that: the front edge of described protecgulum has right angle seam thus gap, slope is positioned at inside seam fit clearance in upper end and forms gap, right angle.
3. grinding head motor axle head waterproof construction according to claim 1 and 2, is characterized in that: be provided with outside framework oil seal between described protecgulum front end and machine shaft; Described protecgulum inside has the stepped cavity of wound motor rotating shaft, the bearing of inner ring and bearing fit, outer ring and front cover match is provided with in described stepped cavity, the front end of described bearing is by being fixed on machine shaft upper stop piece and locking nut backstop, and the rear end of described bearing is by being enclosed within described machine shaft and the internal bearing cover backstop be fixed on protecgulum.
4. grinding head motor axle head waterproof construction according to claim 1, is characterized in that: described grinding wheel stand is fixed on the termination of described machine shaft by the mode of hot jacket interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630613.9U CN204179801U (en) | 2014-10-28 | 2014-10-28 | Grinding head motor axle head waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630613.9U CN204179801U (en) | 2014-10-28 | 2014-10-28 | Grinding head motor axle head waterproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179801U true CN204179801U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420630613.9U Active CN204179801U (en) | 2014-10-28 | 2014-10-28 | Grinding head motor axle head waterproof construction |
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| Country | Link |
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| CN (1) | CN204179801U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877552A (en) * | 2017-04-24 | 2017-06-20 | 威灵（芜湖）电机制造有限公司 | Motor casing main body, motor casing and motor |
| CN109639019A (en) * | 2018-12-29 | 2019-04-16 | 上海德驱驰电气有限公司 | A kind of grinding head motor that waterproof anti-sticking is dead |
| CN113162291A (en) * | 2021-03-10 | 2021-07-23 | 东风柳州汽车有限公司 | Shaft body sealing structure |
| CN109639019B (en) * | 2018-12-29 | 2024-07-12 | 上海德驱驰电气有限公司 | Waterproof anti-blocking grinding head motor |
-
2014
- 2014-10-28 CN CN201420630613.9U patent/CN204179801U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877552A (en) * | 2017-04-24 | 2017-06-20 | 威灵（芜湖）电机制造有限公司 | Motor casing main body, motor casing and motor |
| CN109639019A (en) * | 2018-12-29 | 2019-04-16 | 上海德驱驰电气有限公司 | A kind of grinding head motor that waterproof anti-sticking is dead |
| CN109639019B (en) * | 2018-12-29 | 2024-07-12 | 上海德驱驰电气有限公司 | Waterproof anti-blocking grinding head motor |
| CN113162291A (en) * | 2021-03-10 | 2021-07-23 | 东风柳州汽车有限公司 | Shaft body sealing structure |
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