CN209046445U - Band-type brake structure and directly drive electric rotary machine - Google Patents
Band-type brake structure and directly drive electric rotary machine Download PDFInfo
- Publication number
- CN209046445U CN209046445U CN201821651231.9U CN201821651231U CN209046445U CN 209046445 U CN209046445 U CN 209046445U CN 201821651231 U CN201821651231 U CN 201821651231U CN 209046445 U CN209046445 U CN 209046445U
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- China
- Prior art keywords
- driving member
- band
- guide post
- type brake
- iron core
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Abstract
The utility model provides a kind of band-type brake structure and directly drives electric rotary machine, and the band-type brake structure includes dynamic iron core, guide post, friction plate assembly, reset spring and electromagnetic coil；The band-type brake structure further includes driving member, wherein: there is the mounting hole being axially arranged along the guide post in the dynamic iron core, the driving member includes the through-hole being axially arranged along the guide post, and has the equally distributed ball of multiple circumferential directions along the driving member on the driving member；The driving member is installed between the mounting hole of the dynamic iron core and the guide post, and realizes the rolling friction between dynamic iron core and the guide post by the ball.Sliding friction between dynamic iron core and guide post is converted to rolling friction by driving member by the utility model, to realize zero back clearance while the smooth movement of guarantee dynamic iron core.
Description
Technical field
The utility model relates to direct driving motor fields, more specifically to a kind of band-type brake structure and directly drive rotary electric
Machine.
Background technique
Direct driving motor can directly drive load running, because it gets rid of the intermediate transmission in the big torque system of conventional low
Device (such as mechanical gearbox, belt pulley), eliminate intermediate gearing bring such as transmission efficiency it is low, it is bulky, make an uproar
Sound pollution needs the problems such as periodic maintenance, in wind-power electricity generation, industrial robot, precision machine tool, oil pumping in oil fields system and ship
The low speed high torques applications such as propulsion have obtained the favor of people.
It is directly driving in electric rotary machine (DDR), is generally passing through electromagnetic coil, dynamic iron core, friction plate assembly and reset spring
Linkage is braked to realize: when band-type brake is powered, electromagnetic coil is powered and adsorbs dynamic iron core, and friction plate assembly is opened, band-type brake
It unclamps；When brake-contracting cut-off, electromagnetic coil power loss, reset spring movement makes dynamic iron core pressing friction piece component realize band-type brake
Braking.
In brake sticking brake and the operational process that declutches, dynamic iron core can move reciprocatingly under the guiding role of guide post, and
When rotor rotation, it will drive dynamic iron core and do micro-displacement, and then generate back clearance；The back clearance value of band-type brake be equal to dynamic iron core and
Gap width between guide post, the gap width is bigger, and back clearance is bigger.
Generally, dynamic iron core proper motion when powering off to enable, back clearance design bigger, and back clearance makes to embrace more greatly
Lock can stablize completion adhesive action, still, in the certain specific application scenarios for directly driving electric rotary machine, need small as far as possible
Ground back clearance, to guarantee straight to drive being stably connected with for electric rotary machine and external component.But due to being steel between dynamic iron core and guide post
Contact to steel, and need to guarantee that band-type brake is attracted, gap is larger and gap is uncontrollable；Lead to not zero back clearance for meeting transmission system
Or the requirement of small back clearance.
Utility model content
The technical problem to be solved by the present invention is to for the smooth cunning in above-mentioned band-type brake structure to realize dynamic iron core
It is dynamic that back clearance need to be made larger, the problem of being unable to satisfy certain small back clearance application scenarios, provide a kind of band-type brake structure and it is straight drive it is rotary
Motor.
The technical solution that the utility model solves above-mentioned technical problem is to provide a kind of band-type brake structure, including dynamic iron core, leads
Xiang Zhu, friction plate assembly, reset spring and electromagnetic coil, and the dynamic iron core is led described in the action of reset spring lower edge
Friction plate assembly described in axial compression to column, and the electromagnetic coil effect lower edge described in guide post axially away from described
Friction plate assembly；The band-type brake structure further includes driving member, in which: there is the axial direction along the guide post to set in the dynamic iron core
The mounting hole set, the driving member include the through-hole being axially arranged along the guide post, and are had on the driving member multiple
Along the equally distributed ball of the circumferential direction of the driving member；The driving member be installed in the dynamic iron core mounting hole and the guiding
Between column, and the rolling friction between dynamic iron core and the guide post is realized by the ball.
Preferably, the dynamic iron core is placed on the periphery mistake on the driving member and with the driving member by the mounting hole
It is full of cooperation；The multiple ball is projected into respectively in the through-hole, and the guide post is extend into the through-hole of the driving member simultaneously
It rolls and cooperates with the ball.
Preferably, the guide post and the ball are interference fitted.
Preferably, the driving member is linear bearing, and the outer circle of the linear bearing and the dynamic iron core are interference fitted, institute
It states guide post and protrudes into the inner circle of the linear bearing and rolled with the ball of the linear bearing and cooperate.
Preferably, the driving member includes sleeve, has multiple ball cavities, and each ball cavity packet on the sleeve
Include the first opening towards the through-hole；Each ball is set in the ball cavity and can roll in the ball cavity
It is dynamic.
Preferably, the diameter of first opening is less than the diameter of the ball.
Preferably, each ball cavity include towards the sleeve periphery second opening, and it is described second opening
Diameter is less than the diameter of the ball.
The utility model is a kind of directly to drive electric rotary machine, including casing and end cap, the straight drive electric rotary machine further include
Band-type brake structure as described above, and the band-type brake structure is installed between the end face and end cap of the casing.
Preferably, the end face of the casing is fixed with multiple guide posts, and multiple guide posts are along the casing
The circumferential direction of end face be uniformly distributed；There are multiple mounting holes, and each mounting hole is pacified by the driving member in the dynamic iron core
It is attached to the guide post.
The band-type brake structure of the utility model and the straight electric rotary machine that drives have the advantages that dynamic iron through driving member
Sliding friction between core and guide post is converted to rolling friction, to realize zero back while the smooth movement of guarantee dynamic iron core
Gap.And the utility model can adjust the back clearance of above-mentioned band-type brake structure also by adjusting the size of ball.
Detailed description of the invention
Fig. 1 is the axial cross-sectional views of the utility model band-type brake constructive embodiment；
Fig. 2 is the radial section schematic diagram of the utility model band-type brake structure second embodiment；
Fig. 3 is the partial enlargement diagram in the portion A in Fig. 2；
Fig. 4 is the axial cross-sectional views of driving member embodiment in the utility model band-type brake structure；
Fig. 5 is the axial cross-sectional views of driving member embodiment in the utility model band-type brake structure.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1-3, being the schematic diagram of the utility model band-type brake constructive embodiment, which can be applied to directly drive
Electric rotary machine, and realize rotor brake.Band-type brake structure in the present embodiment be mountable to end cap 18 and casing 10 end face it
Between, and the band-type brake structure includes dynamic iron core 11, guide post 12, friction plate assembly 13, electromagnetic coil 14 and reset spring 15.Its
In above-mentioned guide post 12 be fixed on the end face of casing 10 by screw 19, dynamic iron core 11 under the effect of reset spring 15 (at this time
14 power loss of electromagnetic coil) along guide post 12 axial movement and pressing friction piece component 13, by friction plate assembly 13 realize rotor
17 braking；When electromagnetic coil 14 is powered, which overcomes the pressure of reset spring 15 under magneticaction, along guiding
Column 12 axially away from friction plate assembly 13, so that friction plate assembly 13 is unclamped rotor 17.
Above-mentioned band-type brake structure further includes driving member 16, and has the axial direction setting along guide post 12 in above-mentioned dynamic iron core 11
Mounting hole, driving member 16 includes the through-hole being axially arranged along guide post 12, and on driving member 16 have it is multiple along the transmission
The equally distributed ball of the circumferential direction of part 16.Driving member 16 is installed between the mounting hole of dynamic iron core 11 and guide post 12 and (is driven
Part 16 is placed on the periphery of guide post 12, and the through-hole of dynamic iron core 11 is placed on the periphery of driving member 16), and pass through the rolling in driving member 16
Pearl realizes the rolling friction between dynamic iron core 11 and guide post 12.
Above-mentioned band-type brake structure drives (or the opposite driving member of driving member 16 when band-type brake is attracted or is disconnected, through dynamic iron core 11
16) it moves up and down along the axial direction of guide post 12, due to the effect of 16 inside ball of driving member, pervious sliding friction is become rolling
Dynamic friction, even if the back clearance of band-type brake is zero, resistance is also smaller, and dynamic iron core 11 is attracted or disconnection movement is smooth.
Specifically, above-mentioned dynamic iron core 11 can be placed on driving member 16 by mounting hole and be matched with the periphery interference of driving member 16
It closes, multiple balls are projected into respectively in the through-hole of driving member 16, and guide post 12 is extend into the through-hole of driving member 16 and and ball
Roll cooperation.Particularly, it is zero back clearance for realizing band-type brake structure, the periphery of guide post 12 and ball can be made to be interference fitted.
Linear bearing specifically can be used in above-mentioned driving member 16, and the outer circle and dynamic iron core 11 of the linear bearing are interference fitted, and
Guide post 12, which protrudes into the inner circle of linear bearing and rolls with the ball of the linear bearing, to be cooperated.In this way, in dynamic iron core 11 along guiding
When column 12 is axially moved, dynamic iron core 11 drives driving member 16 to move together relative to guide post 12.In this embodiment, band-type brake knot
The back clearance value of structure depends entirely on the cooperation inside linear bearing between ball and guide post 12, matches when it and is combined into interference fit
When, the back clearance of band-type brake structure is zero.And since the ball size of linear bearing is adjustable, and then the size of its cooperation can also
It adjusts, to can reach the purpose of back adjustable gap.
As illustrated in figures 4-5, above-mentioned driving member 16 also may be accomplished by: driving member 16 includes sleeve 161 and more
A ball 162 has multiple ball cavities on sleeve 161, and each ball cavity includes opening towards the first of the through-hole of driving member 16
Mouthful；Each ball 162 is set in a ball cavity and can roll in ball cavity.By this way, in dynamic iron core 11 along guiding
When column 12 is axially moved, dynamic iron core 11 is moved relative to guide post 12 together with moving sleeve 161.
To avoid ball 162 from deviating from out of ball cavity, the diameter of the first opening of above-mentioned ball cavity is less than the straight of ball 162
Diameter.
In addition, can also make each ball cavity include the second opening towards 161 periphery of sleeve, and the diameter of the second opening is small
In the diameter of ball 162.Also, the back clearance of band-type brake structure can be adjusted by adjusting the diameter of ball 162, so that band-type brake structure
Back clearance it is controllable, adjustable.
The utility model also provide it is a kind of straight drive electric rotary machine, this directly drive electric rotary machine include casing, end cap and
Band-type brake structure as described above, and above-mentioned band-type brake structure is installed between the end face of casing and end cap.
In above-mentioned straight drive electric rotary machine, the end face of casing is fixed with multiple guide posts, and multiple guide posts are along casing
The circumferential direction of end face be uniformly distributed；There are multiple mounting holes, and each mounting hole is installed to one by driving member in dynamic iron core
Guide post.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is subject to the protection scope in claims.
Claims (9)
1. a kind of band-type brake structure, including dynamic iron core, guide post, friction plate assembly, reset spring and electromagnetic coil, and it is described dynamic
Friction plate assembly described in the axial compression of iron core guide post described in the action of reset spring lower edge, and in the electromagnetic coil
Act on lower edge described in guide post axially away from the friction plate assembly；It is characterized in that, the band-type brake structure further includes transmission
Part, in which: there is the mounting hole being axially arranged along the guide post, the driving member includes leading along described in the dynamic iron core
To the through-hole of column being axially arranged, and there is the equally distributed ball of multiple circumferential directions along the driving member on the driving member；
The driving member is installed between the mounting hole of the dynamic iron core and the guide post, and by the ball realize dynamic iron core with
Rolling friction between the guide post.
2. band-type brake structure according to claim 1, which is characterized in that the dynamic iron core is placed on described by the mounting hole
It is interference fitted on driving member and with the periphery of the driving member；Multiple balls are projected into respectively in the through-hole, described to lead
It extend into the through-hole of the driving member to column and is rolled with the ball and cooperated.
3. band-type brake structure according to claim 2, which is characterized in that the guide post and the ball are interference fitted.
4. band-type brake structure according to claim 2, which is characterized in that the driving member is linear bearing, the linear axis
The outer circle held and the dynamic iron core are interference fitted, the guide post protrude into the inner circle of the linear bearing and with the linear bearing
Ball roll cooperation.
5. band-type brake structure according to claim 2, which is characterized in that the driving member includes sleeve, is had on the sleeve
There are multiple ball cavities, and each ball cavity includes the first opening towards the through-hole；Each ball is set to one
It can roll in the ball cavity and in the ball cavity.
6. band-type brake structure according to claim 5, which is characterized in that the diameter of first opening is less than the ball
Diameter.
7. band-type brake structure according to claim 5, which is characterized in that each ball cavity includes towards outside the sleeve
Second opening in week, and the diameter of second opening is less than the diameter of the ball.
8. a kind of straight drive electric rotary machine, including casing and end cap, which is characterized in that the straight drive electric rotary machine further include as
Band-type brake structure of any of claims 1-7, and the band-type brake structure be installed in the casing end face and end cap it
Between.
9. straight drive electric rotary machine according to claim 8, which is characterized in that the end face of the casing is fixed with multiple institutes
Guide post is stated, and the circumferential direction of end face of multiple guide posts along the casing is uniformly distributed；Have in the dynamic iron core multiple
Mounting hole, and each mounting hole is installed to the guide post by the driving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821651231.9U CN209046445U (en) | 2018-10-11 | 2018-10-11 | Band-type brake structure and directly drive electric rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821651231.9U CN209046445U (en) | 2018-10-11 | 2018-10-11 | Band-type brake structure and directly drive electric rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209046445U true CN209046445U (en) | 2019-06-28 |
Family
ID=67035679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821651231.9U Active CN209046445U (en) | 2018-10-11 | 2018-10-11 | Band-type brake structure and directly drive electric rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209046445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113246112A (en) * | 2021-02-03 | 2021-08-13 | 杭州新剑机器人技术股份有限公司 | High-integration integrated actuator device and robot joint comprising same |
| WO2022183838A1 (en) * | 2021-03-03 | 2022-09-09 | 达闼机器人股份有限公司 | Brake motor, speed reducer, and robot |
-
2018
- 2018-10-11 CN CN201821651231.9U patent/CN209046445U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113246112A (en) * | 2021-02-03 | 2021-08-13 | 杭州新剑机器人技术股份有限公司 | High-integration integrated actuator device and robot joint comprising same |
| WO2022183838A1 (en) * | 2021-03-03 | 2022-09-09 | 达闼机器人股份有限公司 | Brake motor, speed reducer, and robot |
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