CN109737200A - A kind of sealing self-lubricating mechanism and its electric tool - Google Patents
A kind of sealing self-lubricating mechanism and its electric tool Download PDFInfo
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- CN109737200A CN109737200A CN201910172956.2A CN201910172956A CN109737200A CN 109737200 A CN109737200 A CN 109737200A CN 201910172956 A CN201910172956 A CN 201910172956A CN 109737200 A CN109737200 A CN 109737200A
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- gear
- disc
- tooth
- impeller
- booster
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- 238000007789 sealing Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 239000004519 grease Substances 0.000 claims abstract description 28
- 239000000314 lubricant Substances 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000008021 deposition Effects 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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- General Details Of Gearings (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a kind of sealing self-lubricating mechanism and its electric tools, can reversely get rid of lubricant grease to gear, to guarantee the lubrication of gear.Seal self-lubricating mechanism, including disc, disc is mounted in sealing hole, and it in sealing hole side forms negative pressure when disc circumferentially rotates, to by lubricant grease to one-stage gear, eccentric gear convey, finally by disc get rid of to one-stage gear, eccentric gear latch on be lubricated.The present invention only increases a simple part using existence conditions, and the lubricant grease of deposition is enable to flow to gear field of conjugate, and enhancing gear equivalent life saves lubricant grease dosage.The present invention only increases several simple parts using existence conditions, and the lubricant grease of deposition can be enable to flow, and flows to the key position for needing to lubricate, to increase friction quick-wear part (gear etc.) service life, and then effectively improves machine life.
Description
Technical field
The present invention relates to electric tools, more particularly to a kind of sealing self-lubricating mechanism and its electric tool.
Background technique
For motor shaft class due to there is air pressure inside gear-box at work, rotatory sealing grease is relatively difficult.Exist simultaneously
Grease can be detached from downwards gear surface due to centrifugal force and gravity in high-speed rotation, cannot play the role of lubrication,
So that gear is handled dry meshing state, makes gear Fast Wearing；Grease can also entered inside motor and causes burning machine phenomenon.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of sealing self-lubricatings
Mechanism and its electric tool can reversely get rid of lubricant grease to gear, to guarantee the lubrication of gear.
To achieve the above object, the present invention provides a kind of sealing self-lubricating mechanisms, including disc, disc to be mounted on
In sealing hole, and it in sealing hole side forms negative pressure when disc circumferentially rotates, thus by lubricant grease to one-stage gear, partially
The heart gear conveying, finally by disc get rid of to one-stage gear, eccentric gear latch on be lubricated.
Preferably, be provided with blade, installation through-hole on the disc, the blade at least there are two, and every two leaf
Exist between piece and gets rid of oil-gap.
Preferably, described to get rid of oil-gap inner wall and the angled inclination angle for α of disc axis is inclined at disc
On side wall.
Preferably, the value of α is between 5-15 °.
The invention also discloses a kind of electric tool, application has above-mentioned sealing self-lubricating mechanism.
Preferably, further include main body, the first clutch tooth of motor, the second clutch tooth, line shaft, work are provided in the main body
Make head, eccentric wheel, the work head, the second clutch tooth are separately fixed at line shaft both ends；
First clutch tooth and bevel gear engaged transmission, the bevel gear are mounted on axis body, and level-one is also equipped on axis body
Gear, and axis body is rotatably assembled with main body；
The one-stage gear and armature spindle tooth engagement are driven, the armature spindle tooth and eccentric gear engaged transmission, the armature spindle
Tooth is arranged on output shaft, and output shaft is driven by motor and circumferentially rotated；
The assembly of the inner ring of the output shaft and deep groove ball bearing is fixed, and the outer ring of deep groove ball bearing and main body are assembled, the output
Axis is equipped with disc on the part between armature spindle tooth and deep groove ball bearing.
Preferably, the disc, deep groove ball bearing are installed in sealing hole.
Preferably, eccentrically mounted on the eccentric gear to have eccentric wheel, the eccentric wheel is used to constantly push in rotation
It is mobile that first centrifugation teeth directional second is centrifuged tooth reciprocal linear.
It preferably, further include grease reflux mechanism, including impeller of booster, return pipe, the impeller of booster suit is fixed on power
On axis, line shaft is packed into the inner sleeve of protective case, and inner sleeve is divided into two parts by impeller of booster；
Inner sleeve of the described return pipe one end with impeller of booster close to work head one end be connected to, the other end and output shaft, eccentric wheel, level-one
Gear parts connection feeds back shaft, eccentric wheel, one-stage gear so that lubricant grease be drained by impeller of booster close to work head one end
Part.
Preferably, be provided on the impeller of booster pressurization blade, pressurization mounting hole, the pressurization blade at least there are two,
And skewed slot is formed between two pressurization blades, angle of inclination beta is formed between pressurization wheel axis on the inside of the skewed slot, angle of inclination beta takes
Value is between 10-30 °.
Preferably, electric tool is impact drill, and connector and line shaft inner sealing can axially go up slidable fit, and dynamic
It is also sealed with power piston inside power axis, can axially go up slidable fit；
The power piston is bonded with impact bar one end, and the inner sleeve is equipped with mounting cylinder on the inside of work head, in mounting cylinder inside
It is empty and be used for and drill bit pinching end clamping is assembled.
The beneficial effects of the present invention are: the present invention only increases a simple part using existence conditions, make the lubrication of deposition
Grease can flow to gear field of conjugate, and enhancing gear equivalent life saves lubricant grease dosage.
The present invention only increases several simple parts using existence conditions, and the lubricant grease of deposition can be enable to have flowed
Come, and flow to the key position for needing to lubricate, to increase friction quick-wear part (gear etc.) service life, and then effectively improves complete machine
Service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one.
Fig. 2 is enlarged drawing at F1 in Fig. 1.
Fig. 3 is the disc structural schematic diagram (top view) of embodiment one.
Fig. 4 is A-A cross-sectional view in Fig. 3.
Fig. 5 is B-B cross-sectional view in Fig. 3.
Fig. 6 is the disc structural schematic diagram (lateral plan, left view) of embodiment one.
Fig. 7 is the structural schematic diagram of embodiment two.
Fig. 8 is the structural schematic diagram of embodiment two.
Fig. 9 is the structural schematic diagram of embodiment two.
Figure 10 is impeller of booster structural schematic diagram in embodiment two.
Figure 11 is C-C cross-sectional view in Figure 10.
Figure 12 is impeller of booster structural schematic diagram in embodiment two.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Embodiment one
Referring to Fig. 1-Fig. 6, the electric tool of the present embodiment, including main body 300, be provided in the main body 300 motor first from
Close tooth 311, the second clutch tooth 312, line shaft 320, work head 330, eccentric wheel 340, the work head 330, the second clutch tooth
312 are separately fixed at 320 both ends of line shaft, and second clutch tooth 312 can be separated or be engaged with the first clutch tooth 311, from
And cut off or transmit kinetic energy；
First clutch tooth 311 is mounted on axis body 350 with 250 engaged transmission of bevel gear, the bevel gear 250, axis body 350
On be also equipped with one-stage gear 231, and axis body 350 and main body 300 are rotatably assembled；
The one-stage gear 231 engages biography with eccentric gear 232 with 240 engaged transmission of armature spindle tooth, the armature spindle tooth 240
Dynamic, the armature spindle tooth 240 is arranged on output shaft 111, and output shaft 111 is driven by motor 110 and circumferentially rotated；
The inner ring of the output shaft 111 and deep groove ball bearing 210, which assembles, to be fixed, and the outer ring of deep groove ball bearing 210 and main body 300 fill
Match, the output shaft 111 is equipped with disc 220 on the part between armature spindle tooth 240 and deep groove ball bearing 210；
Be provided with blade 221, installation through-hole 223 on the disc 220, the blade 221 at least there are two, and every two leaf
Exist between piece 221 and get rid of oil-gap 222, eccentrically mounted on the eccentric gear 232 to have eccentric wheel 340, the eccentric wheel 340 is used
In constantly pushing the first centrifugation tooth 311 mobile to the second centrifugation 312 reciprocal linear of tooth in rotation, to drive line shaft circumferential
Rotation.
Eccentric gear 232, eccentric wheel 340 are sleeved on eccentric shaft 360, eccentric wheel 340 by drive rod 410 with connect
Part 420 assembles, and connector 420 is fixed on the first clutch gear 311, thus when eccentric wheel 340 circumferentially rotates, can drive the
One clutch gear 31 moves back and forth.
The disc 220, deep groove ball bearing 210 are installed in sealing hole 301, in use, oil is got rid of in output shaft driving
Ring 220 circumferentially rotates, and lubricant grease is to get rid of oil-gap 222 centripetal and flow axially upwards in disc, to will get rid of to sealing
In hole 301 and lubricant grease (reversed) promotion upwards that flows downward, then via being got rid of at the top of disc 220 to armature spindle tooth
240, respectively with one-stage gear 231,232 engagement place of eccentric gear, distinguish to got rid of lubricant grease respectively to armature spindle tooth 240
With one-stage gear 231,232 engagement place of eccentric gear, one-stage gear 231, eccentric gear 232 are lubricated.
Preferably, 222 inner wall of oil-gap that gets rid of is inclined at the angled inclination angle for α of 220 axis of disc
On 220 side wall of disc, the value of α is between 5-15 °.
The disc 220 on Fig. 1 top view direction and armature spindle tooth 240 respectively with one-stage gear 231, eccentric gear
The overlapping of 232 engagement places, and similar fan is formed between disc 220 and sealing hole 301, to be formed to lubricant grease
Upward lifting force.
Embodiment two
Referring to Fig. 7-Figure 12, in actual use, inclination or resin use work head 330 down sometimes, this will lead to be used for
Lubricate output shaft 111, eccentric wheel 340, one-stage gear 231,232 part of eccentric gear lubricant grease under the effect of gravity to work
Make head flowing, so as to cause the components lack of lubrication of this part, equally will cause components inordinate wear and be easy spontaneous combustion.
In this regard, applicant increases grease reflux mechanism, including impeller of booster 510, return pipe 520, the suit of impeller of booster 510 is fixed
On line shaft 320, line shaft 320 is packed into the inner sleeve 371 of protective case 370, and inner sleeve 371 is divided into two by impeller of booster 510
Part；
Inner sleeve 371 of described 520 one end of return pipe with impeller of booster 510 close to 330 one end of work head be connected to, the other end and output shaft
111, eccentric wheel 340, the connection of 231 part of one-stage gear, thus by lubricant grease by impeller of booster 510 close to 330 one end of work head
Drainage feeds back shaft 111, eccentric wheel 340,231 part of one-stage gear, so that this part can guarantee enough profits at any time
It is sliding.
When line shaft 320 rotates, pressure difference (being similar to vane pump or fan) can be formed in 371 two sides of inner sleeve, and it is close
Work head side is high pressure, so that lubricant grease is pressed into return pipe 520, is then fed back out by the drainage of return pipe 520
Axis 111, eccentric wheel 340, one-stage gear 231,232 part of eccentric gear are lubricated.
Pressurization blade 511, pressurization mounting hole 512 are provided on the impeller of booster 510, the pressurization blade 511 is at least
Two, and skewed slot 513 is formed between two pressurization blades 511, it is formed between 513 inside of skewed slot and 510 axis of impeller of booster
Angle of inclination beta, for angle of inclination beta value between 10-30 °, on the one hand this design enables to lubricant grease to pass through in the present embodiment
On the other hand skewed slot 513 enables to impeller of booster 510 to form suction effect when rotating subsequently into return pipe, thus for lubrication
The conveying of grease provides power.
The electric tool of the present embodiment is impact drill, in actual use, connector 420 and 320 inner sealing of line shaft, can
Slidable fit in axial direction, and also sealed with power piston 430 inside line shaft 320, can axially go up slidable fit；
The power piston 430 is bonded with 130 one end of impact bar, is then passed so that axial impact force is transferred to impact bar 130
It is handed to drill bit, forms the impact force of axial reciprocating.Mounting cylinder 120, mounting cylinder are installed on the inside of the inner sleeve 371, work head 330
120 inner hollows and be used for and drill bit pinching end clamping assemble.
In use, eccentric wheel rotates, drive connection part 420 moves back and forth in inner sleeve 371, thus to power piston 430
Impact force is generated, so that the first clutch gear of driving is moved back and forth to drive line shaft to circumferentially rotate.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of sealing self-lubricating mechanism, it is characterized in that: including disc, disc is mounted in sealing hole, and disc week
To rotation when its sealing hole side formed negative pressure, thus by lubricant grease to one-stage gear, eccentric gear convey, finally by
Disc is got rid of to be lubricated on one-stage gear, eccentric gear.
2. sealing self-lubricating mechanism as described in claim 1, it is characterized in that: being provided with blade on the disc, installation is led to
Hole, the blade at least there are two, and between every two blade exist get rid of oil-gap.
3. sealing self-lubricating mechanism as described in claim 1 gets rid of oil-gap inner wall with disc axis and is in it is characterized in that: described
Angle is that the inclination angle of α is inclined on disc side wall.
4. sealing self-lubricating mechanism as claimed in claim 3, it is characterized in that: the value of α is between 5-15 °.
5. a kind of electric tool, it is characterized in that: requiring any sealing self-lubricating mechanism of 1-4 using having the right.
6. electric tool as claimed in claim 5 is provided with motor first it is characterized in that: further including main body in the main body
Clutch tooth, the second clutch tooth, line shaft, work head, eccentric wheel, the work head, the second clutch tooth are separately fixed at line shaft
Both ends；
First clutch tooth and bevel gear engaged transmission, the bevel gear are mounted on axis body, and level-one is also equipped on axis body
Gear, and axis body is rotatably assembled with main body；
The one-stage gear and armature spindle tooth engagement are driven, the armature spindle tooth and eccentric gear engaged transmission, the armature spindle
Tooth is arranged on output shaft, and output shaft is driven by motor and circumferentially rotated；
The assembly of the inner ring of the output shaft and deep groove ball bearing is fixed, and the outer ring of deep groove ball bearing and main body are assembled, the output
Axis is equipped with disc on the part between armature spindle tooth and deep groove ball bearing.
7. electric tool as claimed in claim 6, it is characterized in that: the disc, deep groove ball bearing are installed in sealing hole
It is interior.
8. electric tool as claimed in claim 6, it is characterized in that: eccentrically mounted on the eccentric gear have an eccentric wheel, it is described
Eccentric wheel is used to that the first centrifugation teeth directional second constantly to be pushed to be centrifuged tooth reciprocal linear in rotation mobile.
9. such as electric tool described in claim 5 or 6, it is characterized in that: further include grease reflux mechanism, including impeller of booster, return
Flow tube, the impeller of booster suit are fixed on line shaft, and line shaft is packed into the inner sleeve of protective case, and impeller of booster divides inner sleeve
It is segmented into two parts；
Inner sleeve of the described return pipe one end with impeller of booster close to work head one end be connected to, the other end and output shaft, eccentric wheel, level-one
Gear parts connection feeds back shaft, eccentric wheel, one-stage gear so that lubricant grease be drained by impeller of booster close to work head one end
Part.
10. the electric tool as described in right wants 9, it is characterized in that: being provided with pressurization blade, pressurization installation on the impeller of booster
Hole, the pressurization blade at least there are two, and skewed slot is formed between two pressurization blades, on the inside of the skewed slot with pressurization wheel axis
Between form angle of inclination beta, angle of inclination beta value is between 10-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172956.2A CN109737200B (en) | 2019-03-07 | 2019-03-07 | Electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172956.2A CN109737200B (en) | 2019-03-07 | 2019-03-07 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737200A true CN109737200A (en) | 2019-05-10 |
| CN109737200B CN109737200B (en) | 2024-07-02 |
Family
ID=66369872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910172956.2A Active CN109737200B (en) | 2019-03-07 | 2019-03-07 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737200B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030201110A1 (en) * | 2002-04-25 | 2003-10-30 | Bednar Thomas R. | Grease slinger |
| CN102979886A (en) * | 2012-11-25 | 2013-03-20 | 安徽工程大学 | Right-angle gearbox |
| CN203098170U (en) * | 2012-12-26 | 2013-07-31 | 宁波恒瑞机械有限公司 | Self-lubricating swash plate high-pressure swash plate pump |
| CN103486423A (en) * | 2012-06-14 | 2014-01-01 | 宝山钢铁股份有限公司 | Self-lubricating device of universal spindle |
| CN107477083A (en) * | 2017-02-20 | 2017-12-15 | 扬州亚达粉末冶金有限公司 | A kind of self-lubricating bearing |
| CN109209647A (en) * | 2018-11-12 | 2019-01-15 | 中国科学院工程热物理研究所 | Gas turbine disc and gas turbine comprising the disc |
| CN209856355U (en) * | 2019-03-07 | 2019-12-27 | 锐奇控股股份有限公司 | Sealed self-lubricating mechanism and electric tool thereof |
-
2019
- 2019-03-07 CN CN201910172956.2A patent/CN109737200B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030201110A1 (en) * | 2002-04-25 | 2003-10-30 | Bednar Thomas R. | Grease slinger |
| CN103486423A (en) * | 2012-06-14 | 2014-01-01 | 宝山钢铁股份有限公司 | Self-lubricating device of universal spindle |
| CN102979886A (en) * | 2012-11-25 | 2013-03-20 | 安徽工程大学 | Right-angle gearbox |
| CN203098170U (en) * | 2012-12-26 | 2013-07-31 | 宁波恒瑞机械有限公司 | Self-lubricating swash plate high-pressure swash plate pump |
| CN107477083A (en) * | 2017-02-20 | 2017-12-15 | 扬州亚达粉末冶金有限公司 | A kind of self-lubricating bearing |
| CN109209647A (en) * | 2018-11-12 | 2019-01-15 | 中国科学院工程热物理研究所 | Gas turbine disc and gas turbine comprising the disc |
| CN209856355U (en) * | 2019-03-07 | 2019-12-27 | 锐奇控股股份有限公司 | Sealed self-lubricating mechanism and electric tool thereof |
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| Publication number | Publication date |
|---|---|
| CN109737200B (en) | 2024-07-02 |
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