CN206785891U - A kind of self-retaining brake apparatus - Google Patents
A kind of self-retaining brake apparatus Download PDFInfo
- Publication number
- CN206785891U CN206785891U CN201720614825.1U CN201720614825U CN206785891U CN 206785891 U CN206785891 U CN 206785891U CN 201720614825 U CN201720614825 U CN 201720614825U CN 206785891 U CN206785891 U CN 206785891U
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- China
- Prior art keywords
- slide
- housing
- spring
- gyroaxis
- self
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Abstract
The utility model discloses a kind of self-retaining brake apparatus, described device includes housing, one side opening of housing, the cover plate for covering the opening is installed in opening, the revolution axocoel and slide chamber communicated be set in housing, and the gyroaxis outside housing inserts above-mentioned gyroaxis intracavitary and can rotated freely wherein, and above-mentioned slide chamber passes to the opening of housing, the slide that can be slided wherein is set in slide intracavitary, a spring cavity is each provided with the both sides of slide.Self-retaining brake apparatus disclosed in the utility model, the spring cavity of a built-in spring is each provided with the both sides of slide, when cam rotates and does not push against cam path to its protuberance, in the presence of spring cavity inner spring elastic force, projection on slide sliding-tongue is in contact with gyroaxis to be allowed to rotate, the braking of gyroaxis is realized, now spring force can remain that raised be in contact with gyroaxis on slide sliding-tongue is allowed to rotate, so as to realize the self-sustaining on-position that do not consume energy.
Description
Technical field
The utility model belongs to the brake apparatus field of power transmission shaft, and one kind more particularly in the field does not consume energy and can protected
Hold the self-retaining brake apparatus of power transmission shaft on-position.
Background technology
Usually require that its executing agency stops at a certain state in power drive system, during parking, and done by external force
When disturbing, state is not destroyed, it is therefore desirable to the power transmission shaft for driving executing agency is braked, to meet wanting for executing agency
Ask.Traditional mode of braking has：Electromagnetic clutch brake and seize braking.
Electromagnetic clutch brake is the principle using electromagnetic clutch, and reaching braking by the power on/off of electromagnetic clutch conciliates
The purpose of lock, as Chinese utility model patent CN205639409U discloses a kind of circular electromagnetic brake and clutch, it is wrapped
Slotted disk and armature are included, medium pore A is provided with the middle part of described slotted disk, toroid ring recess is provided with around medium pore A, it is described
Toroid ring recess peripheral hardware be equipped with spring eye band, multiple spring eyes, multiple alignment pin screwed holes and multiple are set on spring eye band
Lower alignment pin unthreaded hole, entrance hole is offered in the side wall of described slotted disk, entrance hole connects with coil groove；Described slotted disk and rank
Iron is oppositely arranged, and upper alignment pin unthreaded hole aligns with alignment pin screwed hole and lower alignment pin unthreaded hole and is connected by connector respectively,
Spring is installed, the other end of spring is pressed on armature in spring eye.This mode of braking advantage is simple in construction, cost
Low, shortcoming is to produce larger electromagnetic interference, and needs power consumption to keep on-position.
It is the principle using brake block to seize braking, and braking and the opening of brake block are controlled by pulling force.Such as Chinese practicality
New patent CN2149712Y discloses a kind of Brack for electric motor, including rotor, stator, shell, back cover and after
End cap, perforate and groove on rear end cap, support are screwed at the hole of rear end cap, and guide rod is flexibly connected with support,
A wheel is filled on rotor, wheel overcoat one brakes yuan of rings, and the A ends of guide rod are located between stator and braking yuan of rings, the B ends of guide rod and spiral
Spring is in contact.The advantages of this mode of braking is to be easy to adjust and install, and shortcoming is poor reliability and physical dimension is big.
Therefore removing power（Such as power-off）Afterwards, traditional braking mode can not keep power transmission shaft on-position or fortune
Turn state, i.e., do not possess the self-sustaining memory function that do not consume energy, need consumed energy to keep one of state；Conventional brake master
If realizing braking by electromagnetic torque or moment of friction, easily occur brake failure phenomenon when disturbing big, and its volume weight is big,
Some use environments harsh to the requirement of energy consumption, reliability and volume weight, such as deep-sea, space, traditional braking mode are obvious
It can not meet to require.
Utility model content
Technical problem to be solved in the utility model, which is just to provide a kind of do not consume energy, can keep power transmission shaft on-position
Self-retaining brake apparatus.
The utility model adopts the following technical scheme that：
A kind of self-retaining brake apparatus, described device include housing, a side opening of housing, install and use in opening
In the cover plate for covering the opening, it is theed improvement is that：The revolution axocoel and slide chamber communicated be set in housing, returning outside housing
Rotating shaft is inserted above-mentioned gyroaxis intracavitary and can rotated freely wherein, and above-mentioned slide chamber passes to the opening of housing, in cunning
Seat intracavitary sets the slide that can slide wherein, and a spring cavity is each provided with the both sides of slide, in spring cavity towards cover plate
Side opening is set, the spring one end in spring cavity stretches out from opening to be abutted against with cover plate, the cavity wall of the other end and spring cavity
Abut against, be cam path between two spring cavitys in other end insertion cover plate through in the guide rod insertion housing of spring cavity
The sliding-tongue of projection is carried with outside protrusion slide and end, the cam being arranged in cam path is connected with the camshaft penetrated in housing
Connect and can be rotated under its drive, cam rotate to its protuberance do not push against cam path towards cover plate side when, in spring
In the presence of intracavitary spring force, slide slides to revolution axocoel until the projection on slide sliding-tongue is in contact with gyroaxis and is allowed to
Stop after can not rotating, can be with compression spring chamber when cam rotates the side to its protuberance abutting cam path towards cover plate
Interior spring makes slide be slided to cover plate, the projection on slide sliding-tongue is separated with gyroaxis.
Further, described gyroaxis is driven by the motor outside housing.
Further, described spring is abutted against by the cavity wall of sliding bearing and spring cavity.
Further, the end of the sliding-tongue is the circular arc of indent, and the radian of its circular arc is relative with the outer wall of gyroaxis
Should.
Further, set and can be mutually nibbled with above-mentioned projection with the raised corresponding position of sliding-tongue on the outer wall of gyroaxis
The groove of conjunction.
Further, described projection is to be distributed on the gear teeth of arc-shaped surface, and described groove is can be with the above-mentioned gear teeth
The teeth groove being meshed.
Further, the near angle of repose of the cam is more than 0 °, and far angle of repose is more than or equal to 0 °.
Further, described camshaft is by the servo driving outside housing.
Further, the rear and front end of the camshaft in housing is penetrated respectively by a rolling bearing being arranged in housing
It is connected with housing.
The beneficial effects of the utility model are：
Self-retaining brake apparatus disclosed in the utility model, built-in spring is each provided with the both sides of slide
Spring cavity, when cam rotates and does not push against cam path to its protuberance, in the presence of spring cavity inner spring elastic force, slide sliding-tongue
On projection be in contact with gyroaxis and be allowed to rotate, realize the braking of gyroaxis, now spring force can remain
Projection on slide sliding-tongue is in contact with gyroaxis to be allowed to rotate, so as to realize the self-sustaining on-position that do not consume energy.Convex
When wheel rotation to its protuberance pushes against cam path, the projection and gyroaxis on slide sliding-tongue can be made with the spring of compression spring intracavitary
It is separated, rotates freely gyroaxis, can be with the case where cam does not rotate so as to realize that the releasing of gyroaxis is braked
Remaining the spring of compression spring intracavitary makes the projection on slide sliding-tongue be separated with gyroaxis, so as to realize holding of not consuming energy
Release on-position.Two springs are arranged symmetrically in the both sides of slide, make slide stress balance, improve device operating accuracy and
Reliability.Guide rod through spring cavity plays guide and limit effect to slide in the slip of slide intracavitary.
Self-retaining brake apparatus disclosed in the utility model, spring are offseted by the cavity wall of sliding bearing and spring cavity
Connect, sliding bearing can reduce frictional force while being oriented to.The end of sliding-tongue be indent circular arc, the radian of its circular arc with
The outer wall of gyroaxis is corresponding, can so increase the contact area of sliding-tongue and gyroaxis outer wall, on the outer wall of gyroaxis with
The raised corresponding position of sliding-tongue sets the groove that can be meshed with above-mentioned projection, and raised is to be distributed on arc-shaped surface
The gear teeth, groove are the teeth groove that can be meshed with the above-mentioned gear teeth, and the engagement using the gear teeth and teeth groove makes contact of the sliding-tongue with gyroaxis
It is even closer, on-position is more firm.
Brief description of the drawings
Fig. 1 is the structural representation of self-retaining brake apparatus disclosed in the utility model embodiment 1；
Fig. 2 is the internal structure sectional view of self-retaining brake apparatus disclosed in the utility model embodiment 1；
Fig. 3 is the structural representation of slide in self-retaining brake apparatus disclosed in the utility model embodiment 1；
Fig. 4 is the structural representation of self-retaining brake apparatus cam disclosed in the utility model embodiment 1；
Fig. 4 A are the section geometric locus figures of self-retaining brake apparatus cam disclosed in the utility model embodiment 1；
Fig. 5 A and Fig. 5 B be self-retaining brake apparatus disclosed in the utility model embodiment 1 under on-position in
Portion's structure sectional view；
Fig. 6 A and Fig. 6 B are self-retaining brake apparatus disclosed in the utility model embodiment 1 in the case where releasing on-position
Internal structure sectional view.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment 1, as shown in Figure 1-2, present embodiment discloses a kind of self-retaining brake apparatus, described device includes
Housing 6, a side opening of housing, the cover plate 7 for covering the opening is installed in opening, the gyroaxis communicated is set in housing
Chamber 111 and slide chamber 21, the gyroaxis 1 outside housing 6 are inserted in above-mentioned revolution axocoel 111 and can rotated freely wherein, on
The slide chamber stated passes to the opening of housing, the slide 2 that can be slided wherein is set in slide chamber 21, as shown in figure 3, in cunning
The both sides of seat are each provided with a spring cavity 50, set and are open towards the side of cover plate in spring cavity, the spring 5 one in spring cavity
End is stretched out from opening to be abutted against with cover plate 7, and the cavity wall of the other end and spring cavity abuts against, through one end of guide rod 3 of spring cavity 50
Insert in housing 6, in other end insertion cover plate 7, carried between two spring cavitys for cam path 22 and outside protrusion slide and end
The sliding-tongue 23 of projection 231, the cam 221 being arranged in cam path 22 are connected with the camshaft 10 penetrated in housing 6 and can be
Its drive it is lower rotate, cam 221 rotate to its protuberance do not push against cam path 22 towards cover plate 7 side when, in spring cavity
In the presence of the elastic force of 50 inner spring 5, slide 2 slides projection 231 and revolution until on the sliding-tongue 23 of slide 2 to revolution axocoel 111
Axle 1, which is in contact, to be allowed to stop after can not rotating, and is rotated in cam 221 to its protuberance and is pushed against cam path 22 towards the one of cover plate 7
During side, with the spring 5 in compression spring chamber 50 slide 2 can be made to be slided to cover plate 7, make the projection 231 on the sliding-tongue 23 of slide 2 with returning
Rotating shaft 1 is separated.
Alternatively, in the present embodiment, described gyroaxis 1 is by the electricity outside housing 6
Machine 8 drives.Described spring 5 is abutted against by the cavity wall of sliding bearing 4 and spring cavity.The end of the sliding-tongue 23 is indent
Circular arc, the radian of its circular arc are corresponding with the outer wall of gyroaxis 1.The position corresponding with sliding-tongue projection on the outer wall of gyroaxis
Install the groove that can be meshed with above-mentioned projection.Described projection is to be distributed on the gear teeth of arc-shaped surface, described groove
For the teeth groove that can be meshed with the above-mentioned gear teeth.Described camshaft 10 is driven by the steering wheel 11 outside housing 6.Penetrate shell
The rear and front end of camshaft 10 in body 6 is respectively connected by a rolling bearing 9 being arranged in housing 6 with housing 6.Such as figure
Shown in 4, the near angle of repose of the cam is more than 0 °, and far angle of repose is more than or equal to 0 °, specifically, the section geometric locus of cam
As shown in Figure 4 A, cam 221 is made up of the circular arc 221A that closely stops, 2 sections of symmetrical easement curve 221B and the remote circular arc 221C that stops, and
The remote circular arc 221C radiuses that stop are more than the nearly circular arc 221A radiuses that stop.
The course of work of self-retaining brake apparatus disclosed in the present embodiment is：
It is stopped in motor, it is necessary to when being braked to gyroaxis, starts steering wheel and drive camshaft to rotate certain angle
Degree（Such as 180 ° of rotate counterclockwise）After stop, the protuberance of cam 221 is not pushed against cam path 22, in spring cavity inner spring 5
In the presence of elastic force, the gear teeth on slide sliding-tongue 23 are meshed with the teeth groove on gyroaxis 1, gyroaxis 1 can not be rotated realization
Braking, the gear teeth that now elastic force of spring 5 can remain on slide sliding-tongue 23 are meshed with the teeth groove on gyroaxis 1 to be allowed to
By can not also be rotated during External force interference, so as to realize the self-sustaining on-position that do not consume energy, inside of the device under on-position
Structure sectional view is as fig. 5 a and fig. 5b.
When needing release braking to gyroaxis, start steering wheel and drive camshaft to rotate a certain angle（It is such as suitable
Hour hands rotate 180 °）After stop, making cam 221 protuberance push against cam path 22, so can be with the spring 5 of compression spring intracavitary
The gear teeth on slide sliding-tongue 23 is separated with the teeth groove on gyroaxis 1, allow motor to drive gyroaxis to rotate freely, so as to
The releasing braking of gyroaxis is realized, the spring 5 of compression spring intracavitary can be remained in the case where cam 221 does not rotate to be made
The gear teeth on slide sliding-tongue 23 are separated with the teeth groove on gyroaxis 1, so as to realize that holding of not consuming energy releases on-position.Device
Internal structure sectional view in the case where releasing on-position is as shown in Figure 6 A and 6 B.
Claims (9)
1. a kind of self-retaining brake apparatus, described device includes housing, a side opening of housing, installs and is used in opening
Cover the cover plate of the opening, it is characterised in that：The revolution axocoel and slide chamber communicated be set in housing, and the gyroaxis outside housing is inserted
Enter above-mentioned gyroaxis intracavitary and can rotate freely wherein, above-mentioned slide chamber passes to the opening of housing, in slide intracavitary
The slide that can slide wherein is set, a spring cavity is each provided with the both sides of slide, in spring cavity towards the side of cover plate
Setting and be open, the spring one end in spring cavity stretches out from opening to be abutted against with cover plate, and the cavity wall of the other end and spring cavity abuts against,
It is cam path and protrusion between two spring cavitys in other end insertion cover plate through in the guide rod insertion housing of spring cavity
Slide is outer and end is with raised sliding-tongue, and the cam being arranged in cam path is connected with the camshaft penetrated in housing and can
Rotated under its drive, cam rotate to its protuberance do not push against cam path towards cover plate side when, the bullet in spring cavity
In the presence of spring force, slide slides to revolution axocoel until the projection on slide sliding-tongue is in contact with gyroaxis and is allowed to revolve
Stop after turning, can be with the bullet of compression spring intracavitary when cam rotates the side to its protuberance abutting cam path towards cover plate
Spring makes slide be slided to cover plate, the projection on slide sliding-tongue is separated with gyroaxis.
2. self-retaining brake apparatus according to claim 1, it is characterised in that：Described gyroaxis is by installed in housing
Outer motor driving.
3. self-retaining brake apparatus according to claim 1, it is characterised in that：Described spring by sliding bearing with
The cavity wall of spring cavity abuts against.
4. self-retaining brake apparatus according to claim 1, it is characterised in that：The end of the sliding-tongue is the circle of indent
Arc, the radian of its circular arc are corresponding with the outer wall of gyroaxis.
5. self-retaining brake apparatus according to claim 4, it is characterised in that：It is convex with sliding-tongue on the outer wall of gyroaxis
Play corresponding position and the groove that can be meshed with above-mentioned projection is set.
6. self-retaining brake apparatus according to claim 5, it is characterised in that：Described projection is to be distributed on circular arc table
The gear teeth in face, described groove are the teeth groove that can be meshed with the above-mentioned gear teeth.
7. self-retaining brake apparatus according to claim 1, it is characterised in that：The near angle of repose of the cam is more than
0 °, far angle of repose is more than or equal to 0 °.
8. self-retaining brake apparatus according to claim 1, it is characterised in that：Described camshaft is by installed in housing
Outer servo driving.
9. self-retaining brake apparatus according to claim 1, it is characterised in that：The camshaft penetrated in housing it is front and rear
Both ends are respectively connected by a rolling bearing being arranged in housing with housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614825.1U CN206785891U (en) | 2017-05-31 | 2017-05-31 | A kind of self-retaining brake apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614825.1U CN206785891U (en) | 2017-05-31 | 2017-05-31 | A kind of self-retaining brake apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785891U true CN206785891U (en) | 2017-12-22 |
Family
ID=60714541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720614825.1U Withdrawn - After Issue CN206785891U (en) | 2017-05-31 | 2017-05-31 | A kind of self-retaining brake apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013611A (en) * | 2017-05-31 | 2017-08-04 | 中国海洋大学 | A kind of self-retaining brake apparatus |
-
2017
- 2017-05-31 CN CN201720614825.1U patent/CN206785891U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013611A (en) * | 2017-05-31 | 2017-08-04 | 中国海洋大学 | A kind of self-retaining brake apparatus |
| CN107013611B (en) * | 2017-05-31 | 2022-12-02 | 中国海洋大学 | Self-holding type braking device |
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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: 20171222 Effective date of abandoning: 20221202 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20221202 |