CN207239232U - Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism - Google Patents
Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism Download PDFInfo
- Publication number
- CN207239232U CN207239232U CN201721188948.XU CN201721188948U CN207239232U CN 207239232 U CN207239232 U CN 207239232U CN 201721188948 U CN201721188948 U CN 201721188948U CN 207239232 U CN207239232 U CN 207239232U
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- China
- Prior art keywords
- boss
- planetary plate
- closing piece
- spring sheet
- buffering spring
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Abstract
This application discloses a kind of main shaft self-locking mechanism and the drill kind tool of the mechanism is configured, wherein, main shaft self-locking mechanism includes:Planetary plate, the coaxially arranged stopper ring with planetary plate, the closing piece being co-axially located in stopper ring, and the self-lock pin between closing piece, planetary plate and stopper ring；It is connected with closing piece between the closing piece and the planetary plate axial direction and the buffering spring sheet of axial elastic deformation can be produced when it is subject to axial force, the planetary plate is towards being fixedly installed public boss on the end face of that side of buffering spring sheet, and the buffering spring sheet is towards being fixedly installed on the end face of that side of planetary plate and the matched female boss of the male boss.The application can reduce the brake noise of drill kind tool, improve man-machine use feeling, improve the taste of product.
Description
Technical field
This application involves drill kind tool field, and in particular to a kind of main shaft self-locking mechanism and the brill class work for configuring the mechanism
Tool.
Background technology
Publication No. US6702090 U.S. Patent Publications are a kind of with main shaft self-locking mechanism to turn class instrument, it is in instrument
When being reduced to main shaft self-locking brake from normal use revolution, its principle is：Due to using electric brake, motor side, that is, planetary plate side
Rotating speed reduces speed and is more than output shaft side, after output shaft lock block opposite lock block rotates against α ° (α ° is rotatable engagement gap), output
Axis, which has, drives closing piece and buffering spring sheet to continue the trend to relatively rotate, but at this time the claw of buffering spring sheet embedded in planetary plate
In groove, for the trend of relative rotation because slowing down being subject to the resistance of claw, this sluggish trend will be such that output shaft side rotating speed declines simultaneously
Delay makes self-lock pin stuck, and the climbing of claw forced compression is slided in another groove of planetary plate, and self-lock pin is being subject to closing piece with stopping
The collective effect of moving-coil and realize brake.The successful key of this structure is when claw is being subject to external force in two grooves of planetary plate
It is mobile, reduce self-lock pin be stuck realization brake when, the relative rotation speed of closing piece and stopper ring.
In addition to this drill kind tool disclosed in above-mentioned patent, the brake scheme of existing drill kind tool is in use
All there are problems with：When i.e. brake function is realized in machine operation stopping main shaft self-locking, since main shaft self-locking does not have buffer structure,
Three closing piece, self-lock pin, stopper ring part relative rotation speeds are larger, and self-lock pin moment is stuck with stopper ring by closing piece, causes self-locking
Pin clashes with stopper ring, closing piece and sends the abnormal sound of " click, click ".This abnormal sound seriously affects the use feeling of operator
By reduction product taste.
The content of the invention
The purpose of the application is：In view of the above-mentioned problems, the application proposes a kind of main shaft self-locking mechanism of new structure, at the same time also
It is proposed a kind of drill kind tool for being configured with this main shaft self-locking mechanism, effectively to reduce the brake noise of drill kind tool, improve
Man-machine use feeling, improves the taste of product.
The technical solution of the application is：
A kind of main shaft self-locking mechanism, including:
Planetary plate,
The coaxially arranged stopper ring with the planetary plate,
Closing piece in the stopper ring is co-axially located at, and
Self-lock pin between the closing piece, planetary plate and stopper ring；
It is connected with the closing piece between the closing piece and the planetary plate axial direction and when it is subject to axial force
The buffering spring sheet of axial elastic deformation can be produced, the planetary plate is set towards fixation on the end face of that side of buffering spring sheet
It is equipped with public boss, the buffering spring sheet is towards being fixedly installed on the end face of that side of planetary plate and the public boss matches
Female boss of conjunction.
This main shaft self-locking mechanism of the application based on the above technical solutions, further includes following preferred solution：
The male boss and female boss are respectively provided with least two, and each public boss and each institute
Female boss is stated to be distributed uniformly and circumferentially centered on the central axes of the planetary plate.
The male boss and female boss are respectively provided with three.
The public affairs boss is integrally formed on the planetary plate, and mother's boss is integrally formed on the buffering spring sheet.
The inclined-plane for matching and coordinating is formed on the male boss and female boss.
A kind of drill kind tool, including：
Planetary plate,
It is sequentially connected by central gear and planetary gear with the planetary plate, to drive the electricity that the planetary plate rotates
Machine,
The coaxially arranged stopper ring with the planetary plate,
The closing piece being co-axially located in the stopper ring,
The self-lock pin being connected between the closing piece, planetary plate and stopper ring, and
Output shaft that is coaxially connected with the closing piece and being threaded through in the planetary plate；
It is connected with the closing piece between the closing piece and the planetary plate axial direction and when it is subject to axial force
The buffering spring sheet of axial elastic deformation can be produced, the planetary plate is set towards fixation on the end face of that side of buffering spring sheet
It is equipped with public boss, the buffering spring sheet is towards being fixedly installed on the end face of that side of planetary plate and the public boss matches
Female boss of conjunction.
This drill kind tool of the application based on the above technical solutions, further includes following preferred solution：
The male boss and female boss are respectively provided with least two, and each public boss and each institute
Female boss is stated to be distributed uniformly and circumferentially centered on the central axes of the planetary plate.
The male boss and female boss are respectively provided with three.
The inclined-plane for matching and coordinating is formed on the male boss and female boss.
The public affairs boss is integrally formed on the planetary plate, and mother's boss is integrally formed on the buffering spring sheet.
The application has the advantages that：This main shaft self-locking mechanism for drill kind tool of the application can be reduced effectively
The brake noise of instrument, improves man-machine use feeling, improves the taste of product.
Brief description of the drawings
The application is described further with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of main shaft self-locking mechanism in the embodiment of the present application；
Fig. 2 is in cross section structure schematic diagram during non-self-lock-ing state for main shaft self-locking mechanism in the embodiment of the present application；
Fig. 3 is in cross section structure schematic diagram during self-locking state for main shaft self-locking mechanism in the embodiment of the present application；
Wherein：1- planetary plates, 1a- public affairs boss, 2- stopper rings, 3- closing pieces, 4- self-lock pins, 5- output shafts, 6- buffering spring sheets,
Mother's 6a- boss.
Embodiment
Fig. 1 to Fig. 3 shows a concrete application example of this main shaft self-locking mechanism of the application in drill kind tool, with biography
Drill kind tool (such as Publication No. US6702090 United States Patent (USP)s) of uniting is identical, which also includes tool outer casing (in figure not
Draw), the motor for being provided with power is set in tool outer casing, and the motor shaft of the motor is connected by central gear with planetary gear
One planetary plate 1, planetary plate 1 are rotatably provided in tool outer casing, and stopper ring 2 is relatively fixed with tool outer casing, and stopper ring 2 with
Planetary plate 1 is coaxially arranged, and closing piece 3 is provided with stopper ring 2, the coaxially connected output shaft 5 of closing piece 3.Specifically, output shaft 5
Cross section be non-circular shape, the middle part of closing piece 3 offers the non-circular hole identical with output shaft section shape and size, output shaft
5 are threaded through in the non-circular hole at the middle part of closing piece 3, so that the two is relatively fixed in circumferencial direction.Also, in planetary plate 1
Portion also offers a non-circular hole than 5 sectional dimension bigger of output shaft, and output shaft 5 is penetrated in the non-circular hole of the planetary plate 1.Before
State and six self-lock pins 4 are provided between closing piece 3, stopper ring 2 and planetary plate 1.Self-lock pin 4, closing piece 3, stopper ring 2, planetary plate 1 four
Between person and non-fully immovable fitting, but can relatively move within the specific limits.
The key improvements of the present embodiment are：A buffering spring sheet 6, the buffering spring sheet are fixedly connected with the closing piece 3
Between 1 axial direction of closing piece 3 and planetary plate, i.e., buffering spring sheet 6 is arranged in closing piece 3 close to that side of planetary plate 1.Also, OK
Astrolabe 1 is towards being fixedly installed three circumferentially uniformly distributed public boss 1a, the buffering spring sheet on the end face of 6 that side of buffering spring sheet
6 towards being fixedly installed on the end face of 1 that side of planetary plate and the female boss 6a of matched three of the male boss 1a.
It is using planetary plate as reference unless otherwise instructed in the application described " axial direction ".
With reference to shown in Fig. 2, during normal work, motor operation and by central gear and planetary gear drive planetary plate 1 around
Own axis, three axially extending protrusions (not marked in figure) on planetary plate 1 promote wherein three self-lock pins 4 respectively
It is mobile counterclockwise, the planomural face for making the non-circular hole hole wall in the middle part of it be resisted against output shaft 5 when planetary plate 1 rotates a certain angle
After on (such as Fig. 1), directly output shaft 5 will be driven to rotate by planetary plate 1, latch segment 3 follows output shaft 5 together to rotate.This
When, planetary plate 1 and latch segment 3 are opposing stationary, and six self-lock pins 4 are in the wide space between closing piece 3 and stopper ring 2,
Closing piece 3 and stopper ring 2 will not lock, so closing piece 3 can be constantly in rotary state under the drive of output shaft 5.
With reference to shown in Fig. 3, during the tool spindle self-locking is had an effect, due to motor side (i.e. planetary plate side)
It is very fast that electric brake make it that the rotating speed of planetary plate 1 declines, and the rotary inertia of 5 side of output shaft (i.e. closing piece side) is larger, so row
There is the trend (because output shaft 5 can drive closing piece 3 to rotate synchronously) relatively rotated between astrolabe 1 and closing piece 3, at this time planetary plate 1
It is larger with the speed discrepancy of closing piece 3.And in the present embodiment, due to female boss 6a on the male boss 1a on planetary plate 1 and buffering spring sheet 6
Presence, both can be hindered to relatively rotate, reduce both speed discrepancies.It is public convex when planetary plate 1 and closing piece 3 relatively rotate
Platform 1a and mother boss 6a are mutually contradicted, so that male boss 1a applies female boss 6a the axial thrust towards closing piece direction,
Under the action of the axial thrust, buffering spring sheet 6 produces the axial deformation to 3 direction of closing piece.Female boss 6a gets over male boss 1a,
Mutually hindered by male and female boss, reduce the rotating speed of the relative rotation speed of planetary plate 1 and closing piece 3, i.e. 3 relative brake circle 2 of closing piece
Also effectively reduced.And the noise source for producing brake noise " click click " sound is closing piece 3, self-lock pin 4, stopper ring 3 three zero
The strike note of part, so brake noise can effectively be reduced by reducing the speed discrepancy of above-mentioned three part, can be seen by above-mentioned reasoning
Go out the effect by male boss 1a and female boss 6a, hence it is evident that reduce closing piece, self-lock pin, the opposite of three parts of stopper ring turn
Speed.After female boss 6a of closing piece crosses the male boss 1a on planetary plate, closing piece 3 (in the case where the inertia of output shaft drives) opposing rows
The rotational angle of astrolabe 1 is θ °, the rotation of closing piece 3 can stir corresponding three self-locking footwear 4 be moved to closing piece 3 and stopper ring 2 it
Between small space in so that these three self-lock pins 4 are stuck between stopper ring 2 and closing piece 3, closing piece 3 and stopper ring 4
Opposing stationary, output shaft 5 stops operating, and main shaft (i.e. output shaft 5) self-locking occurs.
Above-mentioned operation principle can also refer to Publication No. US6702090 United States Patent (USP)s.
In order to ensure in above-mentioned auto-lock process, female boss 6a can be smoothly across male boss 1a, the public affairs in the present embodiment
Form the inclined-plane for matching and coordinating on boss 1a and female boss 6a, the inclined-plane can be flat incline plane or curve slope or
Spheric inclined-plane.
Under normality, buffering spring sheet 6 is spaced apart in the axial direction with closing piece 3, so as to ensure to send out in main shaft self-locking
During raw effect, buffering spring sheet 6 has corresponding axial deformation space.
Above-mentioned buffering spring sheet 6 is usually steel disc.
In the present embodiment, public boss 1a is integrally formed on planetary plate 1, i.e., the two is structure as a whole, and certainly, we also may be used
Public boss 1a and planetary plate 1 are arranged to Split connection structure, such as：Public boss 1a is arranged to consolidate with 1 screw thread of planetary plate
Fixed screw.
In the present embodiment, female boss 6a is integrally formed on buffering spring sheet 6, i.e., the two is structure as a whole.And female boss
What 6a was stamped and formed out on buffering spring sheet 6.
It should be noted that the quantity of above-mentioned male boss 1a and female boss 6a are not limited to three, can also be arranged to
One, two or four etc..But, in order to ensure reducing effect of the male and female boss to brake noise, it is generally advisable to set
More than two male boss 1a and female boss 6a.
Certainly, above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
The equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (10)
1. a kind of main shaft self-locking mechanism, including:
Planetary plate (1),
The stopper ring (2) coaxially arranged with the planetary plate (1),
The closing piece (3) being co-axially located in the stopper ring (2), and
Some self-lock pins (4) between the closing piece (3), planetary plate (1) and stopper ring (2)；
It is characterized in that
It is connected with the closing piece (3) between the closing piece (3) and the planetary plate (1) axial direction and when it is subject to axial direction
Can produce the buffering spring sheet (6) of axial elastic deformation during external force, the planetary plate (1) towards the buffering spring sheet (6) that
It is fixedly installed public boss (1a) on the end face of side, the buffering spring sheet (6) is towards on the end face of the planetary plate (1) that side
It is fixedly installed and the matched female boss (6a) of the male boss (1a).
2. main shaft self-locking mechanism according to claim 1, it is characterised in that the male boss (1a) and female boss
(6a) is respectively provided with least two, and each male boss (1a) and each female boss (6a) are with the row
It is distributed uniformly and circumferentially centered on the central axes of astrolabe (1).
3. main shaft self-locking mechanism according to claim 2, it is characterised in that the male boss (1a) and female boss
(6a) is respectively provided with three.
4. main shaft self-locking mechanism according to claim 1, it is characterised in that the public affairs boss (1a) is integrally formed at described
On planetary plate (1), mother's boss (6a) is integrally formed on the buffering spring sheet (6).
5. main shaft self-locking mechanism according to claim 1, it is characterised in that the male boss (1a) and female boss
Matched inclined-plane is formed on (6a).
6. a kind of drill kind tool, including：
Planetary plate (1),
It is sequentially connected by central gear and planetary gear with the planetary plate (1), to drive the motor that the planetary plate rotates,
The stopper ring (2) coaxially arranged with the planetary plate (1),
The closing piece (3) being co-axially located in the stopper ring (2),
Some self-lock pins (4) between the closing piece (3), planetary plate (1) and stopper ring (2), and
It is coaxially connected with the closing piece (3) and penetrate the output shaft (5) in the planetary plate (1)；
It is characterized in that,
It is connected with the closing piece (3) between the closing piece (3) and the planetary plate (1) axial direction and when it is subject to axial direction
Can produce the buffering spring sheet (6) of axial elastic deformation during external force, the planetary plate (1) towards the buffering spring sheet (6) that
It is fixedly installed public boss (1a) on the end face of side, the buffering spring sheet (6) is towards on the end face of the planetary plate (1) that side
It is fixedly installed and the matched female boss (6a) of the male boss (1a).
7. drill kind tool according to claim 6, it is characterised in that the male boss (1a) and female boss (6a) are equal
At least two are respectively arranged with, and each male boss (1a) and each female boss (6a) are with the planetary plate
(1) it is distributed uniformly and circumferentially centered on central axes.
8. drill kind tool according to claim 7, it is characterised in that the male boss (1a) and female boss (6a) are equal
It is respectively arranged with three.
9. drill kind tool according to claim 6, it is characterised in that further include tool outer casing, the public affairs boss (1a) and
Matched inclined-plane is formed on mother's boss (6a).
10. drill kind tool according to claim 6, it is characterised in that the public affairs boss (1a) is integrally formed at the row
On astrolabe (1), mother's boss (6a) is integrally formed on the buffering spring sheet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721188948.XU CN207239232U (en) | 2017-09-15 | 2017-09-15 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721188948.XU CN207239232U (en) | 2017-09-15 | 2017-09-15 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207239232U true CN207239232U (en) | 2018-04-17 |
Family
ID=61888765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721188948.XU Withdrawn - After Issue CN207239232U (en) | 2017-09-15 | 2017-09-15 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207239232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378071A (en) * | 2017-09-15 | 2017-11-24 | 锐奇控股股份有限公司 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
| CN111085968A (en) * | 2018-10-24 | 2020-05-01 | 宝时得科技（中国）有限公司 | Power tool |
-
2017
- 2017-09-15 CN CN201721188948.XU patent/CN207239232U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378071A (en) * | 2017-09-15 | 2017-11-24 | 锐奇控股股份有限公司 | Main shaft self-locking mechanism and the drill kind tool for configuring the mechanism |
| CN111085968A (en) * | 2018-10-24 | 2020-05-01 | 宝时得科技（中国）有限公司 | Power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20230620 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20230620 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |