CN206530627U - Lead screw transmission mechanism - Google Patents
Lead screw transmission mechanism Download PDFInfo
- Publication number
- CN206530627U CN206530627U CN201720211616.2U CN201720211616U CN206530627U CN 206530627 U CN206530627 U CN 206530627U CN 201720211616 U CN201720211616 U CN 201720211616U CN 206530627 U CN206530627 U CN 206530627U
- Authority
- CN
- China
- Prior art keywords
- screw
- brake disc
- axis
- axle sleeve
- angular wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses screw axis and the feed screw nut of a kind of lead screw transmission mechanism, including screw thread cooperation, in addition to：Active angular wheel, it is connected with motor；Driven angular wheel, it is connected with active angular wheel engagement, and the driven angular wheel is coaxially fixed with screw axis；Axle sleeve, it is coaxially fixed on screw axis, and the axle sleeve has the outer peripheral face of cone；Brake disc, it is movably set in outside axle sleeve；The axis of guide, it axially and movably can be arranged in screw rodb base, and the axis of guide is fixedly connected with brake disc；Stage clip, it is connected between screw rodb base and brake disc, and the elastic force for promoting the brake disc to be axially pressed on the conical outer peripheral face of axle sleeve is applied with to brake disc；Banking pin, it axially and movably can be arranged in screw rodb base；Drive rod, its one end is pivotably attached on screw rodb base, and the other end is engaged with banking pin, and brake disc is pressed on the middle part of the drive rod.The utility model can carry out stable braking to the rotation of screw axis, and then ensure the transmission accuracy of screw mandrel.
Description
Technical field
The utility model is related to a kind of lead screw transmission mechanism.
Background technology
Existing lead screw device is typically not provided with the structure that can be braked to the rotation of screw axis, even some silks
Lever apparatus is configured with brake structure, but it is poor more or less to there is braking effect, the problems such as brake structure is complicated.
The application comes therefrom.
Utility model content
The utility model purpose is：In view of the above-mentioned problems, proposing a kind of lead screw transmission mechanism of band brake function, it can
Rotation to screw axis carries out stable braking, and then ensures the transmission accuracy of screw mandrel.
The technical solution of the utility model is：A kind of lead screw transmission mechanism, including the screw axis and screw mandrel spiral shell that screw thread coordinates
Mother, wherein screw axis are rotatably connected on screw rodb base, in addition to：
Active angular wheel, it is connected with motor, with by the motor drive the active angular wheel around
Own axes rotate；
Driven angular wheel, it is connected with active angular wheel engagement, and the driven angular wheel and the silk
Bar axle is coaxially fixed；
Axle sleeve, it is coaxially fixed on the screw axis, and the axle sleeve has the outer peripheral face of cone；
Brake disc, it is movably set in outside the axle sleeve；
The axis of guide, it can be axially and movably arranged in the screw rodb base, and the axis of guide is fixed with the brake disc and connected
Connect；
Stage clip, it is connected between the screw rodb base and the brake disc, and the brake disc is applied with promotes the system
Moving plate is axially pressed on the elastic force on the conical outer peripheral face of the axle sleeve；
Banking pin, it can be axially and movably arranged in the screw rodb base；
Drive rod, its one end is pivotably attached on the screw rodb base, and the other end is engaged with the banking pin, and institute
State the middle part that brake disc is pressed on the drive rod.
The utility model is on the basis of above-mentioned technical proposal, in addition to following preferred scheme：
The middle part of the drive link forms the projection of the oriented brake disc direction protrusion, and it is convex that the brake disc is pressed on this
On rising.
The drive rod return spring being clipped between the drive rod and screw rodb base is arranged with the drive rod.
The bellmouth matched with the conical outer peripheral face of the axle sleeve is formed with the brake disc.
The utility model has the advantages that：The utility model is come using the bellmouth and conical outer surface structure that are mutually matched
Realize and the stable of screw rod transmission is braked, it is ensured that the transmission accuracy of screw mandrel.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined
Become substantially and be readily appreciated that, wherein：
Fig. 1 is the internal structure schematic diagram of lead screw transmission mechanism in the utility model embodiment；
Fig. 2 is the dimensional structure diagram of lead screw transmission mechanism in the utility model embodiment；
Fig. 3 is the front view of lead screw transmission mechanism in the utility model embodiment；
Fig. 4 is Fig. 3 right view；
Wherein：1- screw rodb bases, 2- active angular wheels, the driven angular wheels of 3-, 4- axle sleeves, the taper appearance of 4a- axle sleeves
Face, 5- brake discs, the cone-shaped inner hole of 5a- brake discs, the 6- axis of guides, 7- stage clips, 8- banking pins, 9- drive rods, 9a- is raised, 10-
Drive rod return spring.
Embodiment
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
The utility model is further described in detail body embodiment.It should be understood that these embodiments are to be used to illustrate this practicality
It is new and be not limited to limit scope of the present utility model.The implementation condition used in embodiment can be according to the condition of specific producer
Further adjustment is done, unreceipted implementation condition is usually the condition in normal experiment.Elaborate in the following description a lot
Detail is in order to fully understand the utility model, still, and the utility model can also be different from being described herein using other
Other modes implement, therefore, protection domain of the present utility model is not limited by following public specific embodiment.
In the description of this specification, term " connection ", " installation ", " fixation " etc. all should be interpreted broadly.For example, " even
Connect " it can make to be fixedly connected or be detachably connected, or be integrally connected；It can make to be joined directly together or pass through
Intermediate media are indirectly connected to.For the ordinary skill in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the utility model.
In the description of this specification, the orientation or position relationship of the instruction such as term " on ", " under " are based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of description the utility model and simplify and describe, rather than indicate or imply signified
Device or unit must have specific direction, with specific azimuth configuration and operation, it is thus impossible to be interpreted as new to this practicality
The limitation of type.
Fig. 1 to Fig. 4 shows a preferred embodiment of this lead screw transmission mechanism of the utility model, and it includes screw thread and matched somebody with somebody
The screw axis of conjunction and feed screw nut, wherein screw axis are rotatably connected on screw rodb base 1.
The key improvements of the present embodiment are that the lead screw transmission mechanism also includes：Active angular wheel 2, driven angular wheel
3rd, axle sleeve 4, brake disc 5, the axis of guide 6, stage clip 7, banking pin 8 and drive rod 9.Wherein：
Active angular wheel 2 is connected with motor (being not drawn into figure), to drive active taper by the motor
Gear 2 rotates around own axes.
Driven angular wheel 3 is connected with the engagement of above-mentioned active angular wheel 2, and the driven angular wheel 3 and the silk
Bar axle is coaxially fixed.
Axle sleeve 4 is coaxially fixed on screw axis, and the axle sleeve 4 has the outer peripheral face of cone.
Brake disc 5 is movably set in outside axle sleeve 4.
The axis of guide 6 can be axially and movably arranged in screw rodb base 1, and the axis of guide 6 is fixedly connected with the brake disc 5.
Stage clip 7 is connected between screw rodb base 1 and brake disc 5, and brake disc 5 is applied with promotes the axle of brake disc 5
To the elastic force being pressed on the conical outer peripheral face of the axle sleeve 4.Specifically in Fig. 1, the stage clip 7 to brake disc 5 along described
The elastic force of the axial direction of the axis of guide 6 to the left, and then promote the axial conical periphery for being pressed on the axle sleeve 4 of the brake disc 5
On face.
Banking pin 8 can be axially and movably arranged in screw rodb base 1.The banking pin 8 is limited in screw rodb base 1 again simultaneously,
It will not be completely disengaged from from screw rodb base 1.
Its one end of drive rod 9 is pivotably attached on screw rodb base 1, and the other end is engaged with the banking pin 8, and brakes
Disk 5 is pressed on the middle part of the drive rod 9.
Shown in reference picture 1, under nature, the stage clip 7 in compressive state is applied with elastic force to the left to the axis of guide 6,
So that the brake disc 5 fixed with the axis of guide 6 is tightly pressed against on the conical outer peripheral face of axle sleeve 4 to the left, so that screw mandrel
Axle is braked and can not rotated.If being unlocked to screw axis, can normally go to can, then push away to the left in Fig. 1
Dynamic banking pin 8, banking pin 8 promotes drive rod 9 to make to turn counterclockwise in Fig. 1 around the pivotal point of the drive rod 9 and screw rodb base 1
Dynamic, the drive rod 9 is during rotating counterclockwise, and it promotes brake disc 5 to move right and depart from axle sleeve 4, and screw axis are realized
Unblock is free to rotate.
During practical application, the part being connected with feed screw nut need to be such as moved using the lead screw device, then utilizes corresponding drive
Dynamic equipment promotes to the right banking pin 8 in Fig. 1, and brake disc 5 departs from axle sleeve 4, screw axis unblock, is driven by driving gear
Screw axis are rotated, and drive feed screw nut to be moved axially along screw axis, realize the mobile transmission of workpiece.When workpiece is moved into place
Afterwards, take-off the brake pin 8 immediately, brake disc 5 is abutted against on axle sleeve 4 under the elastic force effect of stage clip 7, and screw axis are in on-position
And stop operating.
The present embodiment is formed with the bellmouth matched with the conical outer peripheral face of above-mentioned axle sleeve 4 in above-mentioned brake disc 5, such as
This can increase the contact area between brake disc 5 and axle sleeve 4 under on-position again, so as to lift braking of the brake disc 5 to lead screw shaft
Effect.It can refer to the conical outer surface 4a and the cone-shaped inner hole 5a of brake disc of the axle sleeve shown in Fig. 1.
Also, in order to ensure that drive link 9 can swimmingly promote brake disc 5, the present embodiment is formed at the middle part of drive link 9
The raised 9a of the oriented direction of brake disc 5 protrusion, brake disc 5 is pressed on the raised 9a.
In addition, in order to ensure that screw axis are in on-position under normality, the present embodiment has been arranged a folder on drive rod 9
Drive rod return spring 10 between the drive rod 9 and screw rodb base 1, the drive rod return spring 10 is to drive rod 9 in Fig. 1
It is applied with elastic force to the left.
Certainly, above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow people's energy
Solution content of the present utility model much of that is simultaneously implemented according to this, and protection domain of the present utility model can not be limited with this.It is all according to this
Equivalent transformation or modification that the Spirit Essence of utility model main technical schemes is done, should all cover in protection of the present utility model
Within the scope of.
Claims (4)
1. a kind of lead screw transmission mechanism, includes screw axis and the feed screw nut of screw thread cooperation, wherein screw axis rotatable connection is in silk
On pole socket (1), it is characterised in that also include：
Active angular wheel (2), it is connected with motor, to drive the active angular wheel around certainly by the motor
Body axis rotates；
Driven angular wheel (3), engagement is connected with the active angular wheel for it, and the driven angular wheel (3) with it is described
Screw axis are coaxially fixed；
Axle sleeve (4), it is coaxially fixed on the screw axis, and the axle sleeve (4) has the outer peripheral face of cone；
Brake disc (5), it is movably set in the axle sleeve (4) outside；
The axis of guide (6), it can be axially and movably arranged in the screw rodb base (1), and the axis of guide (6) and the brake disc
(5) it is fixedly connected；
Stage clip (7), it is connected between the screw rodb base (1) and the brake disc (5), and the brake disc (5) is applied with
The elastic force for promoting the brake disc (5) to be axially pressed on the conical outer peripheral face of the axle sleeve (4)；
Banking pin (8), it can be axially and movably arranged in the screw rodb base (1)；
Drive rod (9), its one end is pivotably attached on the screw rodb base (1), and the other end is engaged with the banking pin (8),
And the brake disc (5) is pressed on the middle part of the drive rod (9).
2. lead screw transmission mechanism as claimed in claim 1, it is characterised in that the middle part of the drive link (9) forms oriented institute
The projection (9a) of brake disc (5) direction protrusion is stated, the brake disc (5) is pressed in the projection (9a).
3. lead screw transmission mechanism as claimed in claim 1, it is characterised in that be arranged with the drive rod (9) and be clipped in the drive
Drive rod return spring (10) between lever (9) and screw rodb base (1).
4. lead screw transmission mechanism as claimed in claim 1, it is characterised in that be formed with and the axle sleeve on the brake disc (5)
(4) bellmouth that conical outer peripheral face matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211616.2U CN206530627U (en) | 2017-03-06 | 2017-03-06 | Lead screw transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211616.2U CN206530627U (en) | 2017-03-06 | 2017-03-06 | Lead screw transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530627U true CN206530627U (en) | 2017-09-29 |
Family
ID=59915264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720211616.2U Withdrawn - After Issue CN206530627U (en) | 2017-03-06 | 2017-03-06 | Lead screw transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939927A (en) * | 2017-03-06 | 2017-07-11 | 苏州科米隆机电有限公司 | Lead screw transmission mechanism |
-
2017
- 2017-03-06 CN CN201720211616.2U patent/CN206530627U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939927A (en) * | 2017-03-06 | 2017-07-11 | 苏州科米隆机电有限公司 | Lead screw transmission mechanism |
| CN106939927B (en) * | 2017-03-06 | 2022-12-09 | 苏州科米隆机电有限公司 | Screw rod transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170929 Effective date of abandoning: 20221209 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170929 Effective date of abandoning: 20221209 |