CN110345177A - A kind of disk brake and control method - Google Patents
A kind of disk brake and control method Download PDFInfo
- Publication number
- CN110345177A CN110345177A CN201910646881.7A CN201910646881A CN110345177A CN 110345177 A CN110345177 A CN 110345177A CN 201910646881 A CN201910646881 A CN 201910646881A CN 110345177 A CN110345177 A CN 110345177A
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- braking parts
- piston
- piston braking
- limited block
- shell
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 239000002828 fuel tank Substances 0.000 description 6
- 230000002045 lasting effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention proposes a kind of disk brake and control method, disk brake includes: shell, and sliding is provided with first piston braking parts and second piston braking parts in shell, is equipped with fluid pressure line in shell；Pressure sensor is set in fluid pressure line；Controller is electrically connected with pressure sensor；Warning device is electrically connected with the controller, and first piston braking parts and second piston braking parts can clamp under the action of hydraulic oil with the two sides of brake disc in fluid pressure line, to realize braking.Provided by the invention kind of disk brake, when first piston braking parts and second piston braking parts serious wear, effective brake is still unable to after first piston braking parts and second piston braking parts movement range, and in fluid pressure line it is hydraulic be greater than preset value when, control warning device is alarmed, and replaces first piston braking parts and second piston braking parts in time convenient for user.
Description
Technical field
The present invention relates to technical field of agricultural machinery, in particular to a kind of disk brake and a kind of controlling party
Method.
Background technique
Brake refers to the component for generating braking moment, power to hinder vehicle movement or movement tendency.Automobile at present
In mostly use friction brakes, it generates braking moment using the friction of fixing element and rotating element working surface.
The caliper of hydraulic brake is generally in the inside of brake, hydraulic cylinder facing each other, opposite oil cylinder it
Between oil circuit communicate.When braking, piston pushes brake disc under the action of hydraulic coupling.Then, the friction block of brake disc two sides
Brake disc is clamped under action of hydraulic force, is allowed to result from the opposite braking moment of the direction of motion on the disc brake rotor, promotes to rotate
Device braking, this is also more common in construction machinery product even agricultural machinery.
In the prior art, after brake pads wear, user is needed to determine when to need replacing according to use experience, be easy because
Accident occurs not in time for brake block replacement.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
In view of this, it is an object of the present invention to provide a kind of disk brakes.
It is an object of the present invention to provide a kind of control methods for above-mentioned disk brake.
To achieve the goals above, the technical solution of first aspect present invention provides a kind of disk brake, comprising: shell
Body, the interior sliding of shell are provided with first piston braking parts and second piston braking parts, include: shell, sliding in shell in shell
First piston braking parts and second piston braking parts are provided with, are equipped with fluid pressure line in shell；Pressure sensor is set to hydraulic tube
In road；Controller is electrically connected with pressure sensor；Warning device is electrically connected with the controller, wherein first piston braking parts with
And second piston braking parts can clamp under the action of hydraulic oil with the two sides of brake disc in fluid pressure line, to realize braking.
In the present solution, when Disk Brake, by first piston braking parts and second piston braking parts and brake disc
Between frictional force realize braking.Before braking is completed, hydraulic lasting increase in fluid pressure line, to increase first piston braking
Friction between portion and second piston braking parts and brake disc.When first piston braking parts and second piston braking parts serious wear
When, effective brake is still unable to after first piston braking parts and second piston braking parts movement range at this time, and hydraulic tube
Hydraulic lasting increase in road, until fluid pressure line in it is hydraulic be greater than preset value when, controller by pressure sensor acquisition
After hydraulic in fluid pressure line, control warning device is alarmed, and replaces first piston braking parts and second in time convenient for user
Piston deceleration portion is reduced because first piston braking parts and second piston braking parts wear the excessive possibility for leading to that accident occurs.
In the above-mentioned technical solutions, it is preferable that further include: first position sensor is fixedly arranged on shell and is set to first
Side of the piston deceleration portion far from brake disc, first position sensor are electrically connected with the controller.
In any of the above-described technical solution, it is preferable that further include: second position sensor is fixedly arranged on shell and is set to
Side of the second piston braking parts far from brake disc, second position sensor are electrically connected with the controller.
In any of the above-described technical solution, it is preferable that further include: the first returning device, the two sides point of the first returning device
It is not connect with first piston braking parts and shell；Second returning device, the two sides of the second returning device respectively with second piston
Braking parts and shell connection, wherein when the two sides of first piston braking parts and second piston braking parts and brake disc clamp, the
One returning device and the second returning device deformation quantity increase；After fluid pressure line pressure release, the first returning device and the second returning device
It can restore deformation and first piston braking parts and second piston braking parts is driven to move to the direction far from brake disc.
In any of the above-described technical solution, it is preferable that the first returning device includes: the first limited block, first piston braking
Portion side is formed with the first return slot, and the first limited block is movably arranged in the first return slot；First elastic component, the first elastic component
Both ends are abutted with the first limited block with the side wall of the first return slot respectively, wherein when braking, the first limited block is limited simultaneously by shell
First piston braking parts are cooperated to squeeze the first elastic component.
In any of the above-described technical solution, it is preferable that shell includes: the first caliper body, and the sliding of first piston braking parts is set
It sets in the first caliper body；Second caliper body is fixedly connected with the first caliper body, and second piston braking parts are slidably arranged in second
In caliper body, wherein be equipped with the first retaining ring in the first caliper body, the two sides of the first limited block respectively with the first retaining ring and first
Elastic component against.
In any of the above-described technical solution, it is preferable that the second returning device includes: the second limited block, second piston braking
Portion side is formed with the second return slot, and the second limited block is movably arranged in the second return slot；Second elastic component, the second elastic component
Both ends are abutted with the second limited block with the side wall of the second return slot respectively, wherein when braking, the second limited block is by the second caliper body
It limits and second piston braking parts is cooperated to squeeze the second elastic component.
In any of the above-described technical solution, it is preferable that be equipped with the second retaining ring in the second caliper body, the second limited block it is separate
The side of second piston braking parts and the second retaining ring against.
In any of the above-described technical solution, it is preferable that first piston braking parts include: the first caliper piston, sliding setting
In in shell；First brake block is fixedly arranged on the first caliper piston close to one end of brake disc, and fluid pressure line can drive the first clamp
Piston motion, so that the first brake block is bonded with one end of brake disc；After fluid pressure line pressure release, the first returning device drives first
Caliper piston is slided to the direction far from brake disc, so that the first brake block is separated with brake disc.
In any of the above-described technical solution, it is preferable that second piston braking parts include: the second caliper piston, sliding setting
In in shell；Second brake block is fixedly arranged on the second caliper piston close to one end of brake disc, and fluid pressure line can drive the second clamp
Piston motion, so that the second brake block is bonded with one end of brake disc；After fluid pressure line pressure release, the second returning device drives second
Caliper piston is slided to the direction far from brake disc, so that the second brake block is separated with brake disc.
The technical solution of second aspect of the present invention provides a kind of control method, in any technical solution of first aspect
Disk brake, control method include: by pressure sensor obtain hydraulic circuit in oil pressure；When oil pressure is greater than first in advance
If when value, controller controls warning device and issues the first warning information.
In the present solution, controller controls warning device and issues the first warning information when oil pressure is greater than preset value, with can be
User is reminded in time when first piston braking parts and second piston braking parts serious wear.
In the above-mentioned technical solutions, it is preferable that when disk brake is equipped with first position sensor 130, control method is also
It include: the stroke value that first piston braking parts are obtained by first position sensor；When stroke value is greater than the second preset value, control
Device control warning device processed issues the second warning information.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of disk brake according to an embodiment of the invention；
Fig. 2 is a kind of partial structure diagram of disc type brake according to an embodiment of the invention.
Wherein, the appended drawing reference in Fig. 1 and the corresponding relationship between component names are as follows:
10 shells, 11 first caliper bodies, 111 first retaining rings, 12 second caliper bodies, 121 second retaining rings, 21 first clamp are living
Plug, 22 first brake block, 31 second caliper pistons, 32 second brake block, 41 first fluid pressure lines, 42 second fluid pressure lines, 511
First sub- limited block, 512 second sub- limited blocks, 52 first elastic components, the sub- limited block of 611 thirds, 612 the 4th sub- limited blocks, 62
Second elastic component, 70 first sealing rings, 80 second sealing rings, 90 piston dust covers, 100 disc centres, 120 pressure sensings
Device, 130 first position sensors, 140 first hydraulic cavities, 150 second hydraulic cavities.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
According to some embodiments of the present invention referring to Fig. 1 description.
As shown in Figure 1, the embodiment of first aspect present invention provides a kind of disk brake, comprising: shell, shell 10
Interior sliding is provided with first piston braking parts and second piston braking parts, includes: shell 10 in shell 10, sliding is set in shell 10
First piston braking parts and second piston braking parts are equipped with, are equipped with fluid pressure line in shell 10；Pressure sensor 120 is set to liquid
In pressure pipe road；Controller is electrically connected with pressure sensor 120；Warning device is electrically connected with the controller, wherein first piston system
Dynamic portion and second piston braking parts can clamp under the action of hydraulic oil with the two sides of brake disc in fluid pressure line, to realize system
It is dynamic.
In the present solution, when Disk Brake, by first piston braking parts and second piston braking parts and brake disc
Between frictional force realize braking.Before braking is completed, hydraulic lasting increase in fluid pressure line, to increase first piston braking
Friction between portion and second piston braking parts and brake disc.When first piston braking parts and second piston braking parts serious wear
When, effective brake is still unable to after first piston braking parts and second piston braking parts movement range at this time, and hydraulic tube
Hydraulic lasting increase in road, until controller is obtained by pressure sensor 120 when hydraulic in fluid pressure line is greater than preset value
After taking hydraulic in fluid pressure line, control warning device is alarmed, and replaces first piston braking parts and the in time convenient for user
Two piston deceleration portions are reduced because first piston braking parts and second piston braking parts wear the excessive possibility for leading to that accident occurs.
In the above embodiment, it is preferable that further include: first position sensor 130 is fixedly arranged on shell 10 and is set to the
One side of the piston deceleration portion far from brake disc, first position sensor 130 are electrically connected with the controller.
In the present solution, first position sensor 130 can detect the initial bit of first piston braking parts in non-braking state
Set and on-position under extreme position, and then can determine that the stroke of first piston braking parts, when first piston braking parts are ground
When damaging larger, stroke of the first piston braking parts in braking increases, when the stroke of first piston braking parts is greater than preset strokes
When, first piston braking parts abrasion at this time is larger, and controller control warning device is alarmed, to remind user's replacement the in time
One piston deceleration portion.
In any of the above-described embodiment, it is preferable that further include: second position sensor is fixedly arranged on shell 10 and is set to
Side of the second piston braking parts far from brake disc, second position sensor are electrically connected with the controller.
In the present solution, second position sensor can detect the initial position of second piston braking parts in non-braking state with
And the extreme position under on-position, and then can determine that the stroke of second piston braking parts, when the abrasion of second piston braking parts compared with
When big, stroke of the second piston braking parts in braking increases, when the stroke of second piston braking parts is greater than preset strokes, this
When the abrasion of second piston braking parts it is larger, controller control warning device is alarmed, to remind user that replacement second is living in time
Fill in braking parts.
Wherein, in the present embodiment, the model PY-2-F-025 of position sensor, controller is STM32F101 type monolithic
Machine, warning device are loudspeaker.
In any of the above-described embodiment, it is preferable that further include: the first returning device, the two sides difference of the first returning device
It is connect with first piston braking parts and shell 10；Second returning device, the two sides of the second returning device respectively with second piston
Braking parts and shell 10 connect, wherein when the two sides of first piston braking parts and second piston braking parts and brake disc clamp,
First returning device and the second returning device deformation quantity increase；After fluid pressure line pressure release, the first returning device and the second return dress
Deformation can be restored and first piston braking parts and second piston braking parts is driven to move to the direction far from brake disc by setting.
In the present solution, fluid pressure line passes through hydraulic-driven first piston braking parts and second piston braking parts in braking
It is moved jointly to brake disc, so that first piston braking parts and second piston braking parts are clamped in the two sides of brake disc, to realize
Braking.When needing to stop braking, fluid pressure line pressure release, first piston braking parts are under the action of the first returning device to separate
The direction of brake disc moves, and second piston braking parts move under the action of the second returning device to the direction far from brake disc,
First piston braking parts and second piston braking parts move in opposite direction at this time, so that first piston braking parts and second are lived
Plug braking parts are separated with brake disc.
By the first returning device of setting and the second returning device, it had both been able to achieve the fast automatic return of disk brake,
First piston braking parts and the unnecessary abrasion of second piston braking parts are reduced, convenient for improving service life；It is able to maintain again effectively
Braking ability, functional reliability is high.Meanwhile disc-like brake structure is simple in this programme, return is quick, braking is sensitive, dimension
Shield is convenient and low in cost, lower to requirement on machining accuracy, is convenient for large-scale application.
In one embodiment of the invention, the first returning device is spring, and the both ends of spring are hooked respectively in first piston
In braking parts and shell 10, when Disk Brake, first piston braking parts are moved to the direction close to brake disc, and at this time the
One returning device generates deformation and extends, and after fluid pressure line pressure release, the first returning device is shunk, to drive first piston to brake
It is slided to the direction far from brake disc in portion.
In one embodiment of the invention, the second returning device is spring, and the both ends of spring are hooked respectively in second piston
In braking parts and shell 10, when Disk Brake, second piston braking parts are moved to the direction close to brake disc, and at this time the
Two returning devices generate deformation and extend, and after fluid pressure line pressure release, the second returning device is shunk, to drive second piston to brake
It is slided to the direction far from brake disc in portion.
Wherein, the first returning device and the connection of shell 10 and first piston braking parts can to abut, hook joint or company
It connects.Likewise, the second returning device and the connection of shell 10 and second piston braking parts can to abut, hook joint or connection.
In the above embodiment, it is preferable that the first returning device includes: the first limited block, first piston braking parts side
It is formed with the first return slot, the first limited block is movably arranged in the first return slot；First elastic component 52, the first 52 liang of elastic component
End is abutted with the first limited block with the side wall of the first return slot respectively, wherein when braking, the first limited block is limited simultaneously by shell 10
First piston braking parts are cooperated to squeeze the first elastic component 52.
In the present solution, the first returning device includes the first limited block and the first elastic component 52.First limited block is annular, and
It is set in the first return slot, to realize activity setting of first limited block in the first return slot.First limited block and first
Elastic component 52 abuts each other, and side of first limited block far from the first elastic component 52 and shell 10 are against the first elastic component
52 side far from the first limited block and first piston braking parts against.When Disk Brake, first piston braking parts
It is moved to the direction close to brake disc, shell 10 limits the first limited block along the movement of first piston braking parts axial direction, the first system
Motion block 22 and first piston braking parts compress the first elastic component 52 jointly, and the first elastic component 52 is compressed.When fluid pressure line pressure release
Afterwards, the first elastic component 52 restores deformation and extends, to drive first piston braking parts to slide to the direction far from brake disc.
The scheme of the present embodiment is smaller on the influence of disk brake original structure, designs and manufactures more convenient.
In any of the above-described embodiment, it is preferable that the first limited block include: be the semiorbicular first sub- limited block 511
With the second sub- limited block 512, the first sub- limited block 511 and the second sub- limited block 512 first piston braking parts radially with
The bottom of shell 10 and the first return slot is against the first sub- limited block 511 and the second sub- limited block 512 are braked in first piston
The axis in portion is upwards against with the first limited block of mosaic annular, wherein the first sub- limited block 511 and the second sub- limited block 512
It is abutted with the first elastic component 52, the first sub- limited block 511 and the second sub- limited block 512 are in the circumferential direction of first piston braking parts
It abuts each other, when braking, the first sub- limited block 511 and the second sub- limited block 512 are in the axial direction of first piston braking parts by shell
Body 10 limits and first piston braking parts is cooperated to squeeze the first elastic component 52.
In the present solution, by the way that semiorbicular first sub- limited block 511 and the second sub- limited block 512, the first limited block is arranged
Handling it is more convenient.
In any of the above-described embodiment, it is preferable that shell 10 includes: the first caliper body 11, the sliding of first piston braking parts
It is arranged in the first caliper body 11；Second caliper body 12 is fixedly connected with the first caliper body 11, and the sliding of second piston braking parts is set
It sets in the second caliper body 12, wherein the first retaining ring 111, the first sub- limited block 511 and the second son are equipped in the first caliper body 11
Side of the limited block 512 far from the first elastic component 52 and the first retaining ring 111 against.
In the present solution, the first sub- limited block 511 and the second sub- limited block 512 and the first retaining ring 111 are against to realize first
Sub- limited block 511 and the second sub- limited block 512 and shell 10 against.
In any of the above-described embodiment, it is preferable that first piston braking parts include: the first caliper piston 21, sliding setting
In in shell 10；First brake block 22 is fixedly arranged on the first caliper piston 21 behind one end of brake disc, fluid pressure line pressurization,
The first caliper piston 21 is driven to move, so that the first brake block 22 is bonded with one end of brake disc；After fluid pressure line pressure release, first
Returning device drives the first caliper piston 21 to slide to the direction far from brake disc, so that the first brake block 22 and brake disc point
From.
Wherein, specifically, the first sliding cavity is equipped in the first caliper body 11, the bottom of the first sliding cavity and fluid pressure line connect
It is logical.First caliper piston 21 is embedded in the first sliding cavity and can slide along the first sliding cavity.First sliding cavity is close to brake disc
Side side side wall is equipped with ring groove, and the first retaining ring 111 is embedded in and is fastened in annular groove.First sub- limited block 511
Be bonded with the second sub- limited block 512 with the side wall of the first sliding cavity and with the first retaining ring 111 close to the first caliper piston 21 one
Side against.First caliper piston 21 passes through the first limited block and can slide along the first sliding cavity.The both ends of first elastic component 52 point
Not and the first caliper piston 21 and the first limited block against.Side and first brake block of first caliper piston 21 close to clamping disk
22 are fixedly connected.The side wall of first sliding cavity is equipped with the second sealing ring 80 (for example, rectangular seal).
When braking, fluid pressure line is pressurized, and the hydraulic oil in fluid pressure line injects the first sliding cavity bottom, the first caliper piston
21 move under the action of hydraulic oil to brake disc side, and the first elastic component 52 compression, the second sealing ring 80 can prevent the first card
Clamp hydraulic oil leakage in 21 motion process of piston.When fluid pressure line pressure release, hydraulic oil is back in fuel tank, and the first elastic component 52 is extensive
Complex deformation simultaneously extends, to drive the first caliper piston 21 to move to the direction far from brake disc.
It is worth noting that it is also settable integrally formed raised in the first caliper body 11 and with the first limited block against,
To realize the limit of the first limited block.
In any of the above-described embodiment, it is preferable that the second returning device includes: the second limited block, second piston braking parts
Side is formed with the second return slot, and the second limited block is movably arranged in the second return slot；Second elastic component 62, the second elastic component
62 both ends are abutted with the second limited block with the side wall of the second return slot respectively, wherein when braking, the second limited block is by the second clamp
Body 12 limits and second piston braking parts is cooperated to squeeze the second elastic component 62.
In the present solution, the second returning device includes the second limited block and the second elastic component 62.Second limited block is annular, and
It is set in the second return slot, to realize activity setting of second limited block in the second return slot.Second limited block and second
Elastic component 62 abuts each other, and side of second limited block far from the second elastic component 62 and shell 10 are against the second elastic component
62 side far from the second limited block and second piston braking parts against.When Disk Brake, second piston braking parts
Move to close to the direction of brake disc, the second caliper body 12 the second limited block of limitation along second piston braking parts axial direction movement,
Second brake block 32 and second piston braking parts compress the second elastic component 62 jointly, and the second elastic component 62 is compressed.Work as hydraulic tube
After the pressure release of road, the second elastic component 62 restores deformation and extends, to drive second piston braking parts sliding to the direction far from brake disc
It is dynamic.
In any of the above-described embodiment, it is preferable that it is equipped with the second retaining ring 121 in the second caliper body 12, the second limited block
Far from second piston braking parts side and the second retaining ring 121 against.
In any of the above-described embodiment, it is preferable that the second limited block include: be the sub- limited block 611 of semiorbicular third
With the 4th sub- limited block 612, the sub- limited block 611 of third and the 4th sub- limited block 612 second piston braking parts radially with
The bottom of second caliper body 12 and the second return slot is against the sub- limited block 611 of third and the 4th sub- limited block 612 are living second
Weeks of braking parts is filled in upwards against going out the second limited block of annular with split, wherein the sub- limited block of third 611 and the 4th son limit
Position block 612 is abutted with the first elastic component 52, and when braking, the sub- limited block of third 611 and the 4th sub- limited block 612 are in second piston
It is limited in the axial direction of braking parts by the second caliper body 12 and second piston braking parts is cooperated to squeeze the second elastic component 62.
In any of the above-described embodiment, it is preferable that second piston braking parts include: the second caliper piston 31, sliding setting
In in shell 10；Second brake block 32 is fixedly arranged on the second caliper piston 31 close to one end of brake disc, and fluid pressure line can drive
Two caliper pistons 31 movement, so that the second brake block 32 is bonded with one end of brake disc；After fluid pressure line pressure release, the second return dress
It sets and the second caliper piston 31 is driven to slide to the direction far from brake disc, so that the second brake block 32 is separated with brake disc.
Wherein, specifically, the second sliding cavity is equipped in the second caliper body 12, the bottom of the second sliding cavity and fluid pressure line connect
It is logical.Second caliper piston 31 is embedded in the second sliding cavity and can slide along the second sliding cavity.Second sliding cavity is close to brake disc
Side side side wall is equipped with ring groove, and the second retaining ring 121 is embedded in and is fastened in annular groove.Second sub- limited block 512
Be bonded with the second sub- limited block 512 with the side wall of the second sliding cavity and with the second retaining ring 121 close to the second caliper piston 31 one
Side against.Second caliper piston 31 passes through the second limited block and can slide along the second sliding cavity.The both ends of second elastic component 62 point
Not and the second caliper piston 31 and the second limited block against.Side and second brake block of second caliper piston 31 close to clamping disk
32 are fixedly connected.The side wall of second sliding cavity is equipped with the second sealing ring 80 (for example, rectangular seal).
When braking, the hydraulic oil in fluid pressure line injects the second sliding cavity bottom, and the second caliper piston 31 is in hydraulic oil
It is moved under effect to brake disc side, the second elastic component 62 compression, the second sealing ring 80 can prevent the second caliper piston 31 from moving
Hydraulic oil is revealed in the process.When fluid pressure line pressure release, hydraulic oil is back in fuel tank, and the second elastic component 62 restores deformation and stretches
It is long, to drive the second caliper piston 31 to move to the direction far from brake disc.
It is worth noting that it is also settable integrally formed raised in the second caliper body 12 and with the second limited block against,
To realize the limit of the second limited block.
In any of the above-described embodiment, it is preferable that fluid pressure line includes: the first fluid pressure line 41, is set to the first caliper body
In 11, the first hydraulic cavities 140 formed between first piston braking parts and the first caliper body 11 are connected to the first fluid pressure line 41；
Second fluid pressure line 42 is set in the second caliper body 12 and is connected to the first fluid pressure line 41, second piston braking parts and second
The second hydraulic cavities 150 that caliper body 12 is formed are connected to the second fluid pressure line 42.
Further, the first fluid pressure line 41 and 42 link position of the second fluid pressure line are equipped with the first sealing ring 70, to prevent
Only hydraulic oil is revealed.
In the present embodiment, fluid pressure line is connected to by two position three-way valve with oil pump and fuel tank.When two position three-way valve is located at
When first position, fluid pressure line is connected to oil pump, and the first caliper piston 21 and the second caliper piston 31 are under the action of hydraulic oil
It moves toward one another, the first brake block 22 and the second brake block 32 are clamped in the two sides of brake disc, to realize braking.Two position three-way valve is cut
After shifting to the second position, fluid pressure line is connected to fuel tank, and the hydraulic oil in fluid pressure line is flow in fuel tank, meanwhile, oil pump goes out
Hydraulic fluid port is connected to by overflow valve with fuel tank, to keep pressure constant.
In another embodiment of the present invention, the stroke of the first caliper piston 21 is greater than the first caliper piston 21 and first
Spacing between limited block, in this way, still can be worked normally when the first brake block 22 generates abrasion.
In another embodiment of the present invention, the stroke of the second caliper piston 31 is greater than the second caliper piston 31 and second
Spacing between limited block, in this way, still can be worked normally when the second brake block 32 generates abrasion.
The embodiment of second aspect of the present invention provides a kind of control method, in any technical solution of first aspect
Disk brake, control method include: the oil pressure obtained in hydraulic circuit by pressure sensor 120；When oil pressure is greater than first
When preset value, controller controls warning device and issues the first warning information.
In the present solution, controller controls warning device and issues the first warning information when oil pressure is greater than preset value, with can be
User is reminded in time when first piston braking parts and second piston braking parts serious wear.
Further, control method further include: when oil pressure is greater than third preset value, disconnect agriculture after farm machinery is flame-out
With mechanical start-up circuit, to prevent the starting of farm machinery, wherein third preset value is greater than the second preset value.
In the present solution, when oil pressure is greater than third preset value, first piston braking parts and second piston braking parts at this time
Abrasion is very serious, and farm machinery has been unable to normal brake application.The starting of farm machinery is disconnected after farm machinery is flame-out at this time
Circuit, or the starter of farm machinery is locked, to prevent the starting of farm machinery, prevent danger.
In the above-mentioned technical solutions, it is preferable that when disk brake is equipped with first position sensor 130, control method is also
It include: the stroke value that first piston braking parts are obtained by first position sensor 130；When stroke value is greater than the second preset value
When, the second warning information is issued by warning device.
Specifically, the initial bit of first piston braking parts in non-braking state is obtained by first position sensor 130
Set and on-position under extreme position, and according to the distance between initial position and extreme position determine first piston braking
The stroke in portion, when the abrasion of first piston braking parts is larger, stroke of the first piston braking parts in braking increases, when the first work
Fill in braking parts stroke be greater than preset strokes when, at this time first piston braking parts abrasion it is larger, controller control warning device into
Row alarm, to remind user to replace first piston braking parts in time.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as indicating
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, being also possible to can
Dismantling connection, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In description of the invention, it is to be understood that the instructions such as term " on ", "lower", "left", "right", "front", "rear"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or unit of indication or suggestion meaning must have specific direction, be constructed and operated in a specific orientation,
It is thus impossible to be interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of disk brake characterized by comprising
Shell (10), the interior sliding of the shell (10) are provided with first piston braking parts and second piston braking parts, the shell
(10) hydraulic circuit is equipped in；
Pressure sensor (120) is set in the hydraulic circuit；
Controller is electrically connected with the pressure sensor (120)；
Warning device is electrically connected with the controller,
Wherein, the first piston braking parts and the second piston braking parts can in the hydraulic circuit hydraulic oil work
It is clamped with the lower two sides with brake disc, to realize braking.
2. disk brake according to claim 1, which is characterized in that further include:
First position sensor (130) is fixedly arranged on the shell (10) and is set to the first piston braking parts far from described
The side of brake disc, the first position sensor (130) are electrically connected with the controller.
3. disk brake according to claim 2, which is characterized in that further include:
Second position sensor is fixedly arranged on the shell (10) and is set to the second piston braking parts far from the brake disc
Side, the second position sensor is electrically connected with the controller.
4. disk brake according to any one of claim 1 to 3, which is characterized in that further include:
First returning device, the two sides of first returning device respectively with the first piston braking parts and the shell
(10) it connects；
Second returning device, the two sides of second returning device respectively with the second piston braking parts and the shell
(10) it connects,
Wherein, when the two sides of the first piston braking parts and the second piston braking parts and brake disc clamp, the first return
Device and the second returning device deformation quantity increase；After the fluid pressure line pressure release, first returning device and the second return dress
Deformation can be restored and the first piston braking parts and second piston braking parts is driven to transport to the direction far from the brake disc by setting
It is dynamic.
5. disk brake according to claim 4, which is characterized in that first returning device includes:
First limited block, first piston braking parts side are formed with the first return slot, the first limited block activity setting
In the first return slot；
First elastic component (52), the first elastic component (52) both ends respectively with first limited block and the first return slot
Side wall abut,
Wherein, when braking, first limited block is limited and cooperated described in the extruding of first piston braking parts by the shell (10)
First elastic component (52).
6. disk brake according to claim 5, which is characterized in that the shell (10) includes:
First caliper body (11), the first piston braking parts are slidably arranged in first caliper body (11)；
Second caliper body (12) is fixedly connected with first caliper body (11), and the second piston braking parts are slidably arranged in
In second caliper body (12),
Wherein, the first retaining ring (111) are equipped in first caliper body (11), the two sides of first limited block respectively with it is described
First retaining ring (111) and first elastic component (52) against.
7. disk brake according to claim 6, which is characterized in that second returning device includes:
Second limited block, second piston braking parts side are formed with the second return slot, the second limited block activity setting
In the second return slot；
Second elastic component (62), the second elastic component (62) both ends respectively with second limited block and the second return slot
Side wall abut,
Wherein, when braking, second limited block is limited by second caliper body (12) and second piston braking parts is cooperated to squeeze
Press second elastic component (62).
8. disk brake according to claim 7, which is characterized in that
The second retaining ring (121) are equipped in second caliper body (12), the separate second piston system of second limited block
The side in dynamic portion and second retaining ring (121) against.
9. a kind of control method, for such as disk brake described in any item of the claim 1 to 8, which is characterized in that packet
It includes:
The oil pressure in the hydraulic circuit is obtained by pressure sensor (120)；
When the oil pressure is greater than the first preset value, controller controls warning device and issues the first warning information.
10. control method according to claim 9, which is characterized in that the disk brake is sensed equipped with first position
When device (130), control method further include:
The stroke value of the first piston braking parts is obtained by the first position sensor (130)；
When the stroke value is greater than the second preset value, the controller controls the warning device and issues the second warning information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646881.7A CN110345177B (en) | 2019-07-17 | 2019-07-17 | Disc brake and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646881.7A CN110345177B (en) | 2019-07-17 | 2019-07-17 | Disc brake and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110345177A true CN110345177A (en) | 2019-10-18 |
| CN110345177B CN110345177B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910646881.7A Active CN110345177B (en) | 2019-07-17 | 2019-07-17 | Disc brake and control method |
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| Country | Link |
|---|---|
| CN (1) | CN110345177B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628312A (en) * | 2020-12-17 | 2021-04-09 | 山西江淮重工有限责任公司 | Floating type yaw brake |
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| GB9616057D0 (en) * | 1996-07-31 | 1996-09-11 | White Edward L | Adjustable anti-drag disc brake system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112628312A (en) * | 2020-12-17 | 2021-04-09 | 山西江淮重工有限责任公司 | Floating type yaw brake |
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| Publication number | Publication date |
|---|---|
| CN110345177B (en) | 2024-02-06 |
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