CN206889537U - hydraulic self-adjusting brake - Google Patents
hydraulic self-adjusting brake Download PDFInfo
- Publication number
- CN206889537U CN206889537U CN201720751459.4U CN201720751459U CN206889537U CN 206889537 U CN206889537 U CN 206889537U CN 201720751459 U CN201720751459 U CN 201720751459U CN 206889537 U CN206889537 U CN 206889537U
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- Prior art keywords
- brake
- sleeve
- self
- shackle member
- flexure strip
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- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a hydraulic pressure self-modulation stopper has solved the trouble, the problem that the precision differs of stopper adjustment among the prior art. The hydraulic self-adjusting brake comprises a brake drum, two brake shoes arranged in the brake drum, wherein the two brake shoes are connected through a hydraulic pump, a self-adjusting mechanism is further arranged at the hydraulic pump, the self-adjusting mechanism comprises two clamping pieces, the two clamping pieces are respectively connected with the two brake shoes through mortise and tenon joints, the self-adjusting mechanism further comprises an adjusting shaft positioned between the two clamping pieces, a first clamping piece extends into the end part of the adjusting shaft, the first clamping piece and the adjusting shaft can rotate relatively in the circumferential direction and move relatively in the axial direction, and a second clamping piece extends into the other end of the adjusting shaft and is in threaded fit with the other end of the adjusting shaft; the outside of regulating spindle is fixed with circumference gear, still is equipped with the sleeve of free state, is connected with the flexure strip between joint spare one and the sleeve, is equipped with the plectrum of card on the flexure strip on the circumference gear.
Description
Technical field
Drum brake technical field is the utility model is related to, particularly relates to a kind of hydraulic pressure simple in construction, easy to use
Self-regulating brake.
Background technology
Drum brake is to make brake-shoe that brake strip is pressed on the inside of brake drum using brake transmission mechanism, so as to
The mechanical structure of brake force is produced, it can make wheel slow down or be stopped in most short distance as needed, to ensure to drive a vehicle
Safety, and ensure that automobile parking is reliably unable to automatic sliding.The rotate element of drum brake is brake drum, and retaining element is system
Dynamic hoof；Its low cost, and meet traditional design.
In the prior art, the power source of brake is varied, and hydraulic pump is one of them, this liquid braking device with
Much time using, the spacing between friction plate and brake drum can be increasing, causes braking distance to grow, and brake force is small, deposits
In larger potential safety hazard, therefore, after a long time use, it is necessary to adjust the spacing between friction plate and brake drum, it is traditional
Adjustment mode is manually adjusted by spanner or other mechanisms, not only troublesome in poeration, and Adjustment precision differs.
Utility model content
The utility model proposes a kind of hydraulic pressure self-regulating brake, solves brake adjustment trouble, precision in the prior art
The problem of differing.
What the technical solution of the utility model was realized in：Hydraulic pressure self-regulating brake, including brake drum and it is arranged at it
Two internal shoe brakes, connected by hydraulic pump between two shoe brakes, self-adjusting mechanism be additionally provided with the hydraulic pump,
The self-adjusting mechanism includes two shackle members, the mortise-tenon joint between two shoe brakes respectively of the shackle member described in two, also
Including the adjustment axis between two shackle members, shackle member one stretches into the end of the adjustment axis, and the shackle member one is with adjusting
Between nodal axisn can it is circumferentially opposed rotation and can axially opposing movement, shackle member two stretch into the other end of the adjustment axis and with its spiral shell
Line coordinates；
The external stability of the adjustment axis has circumferential gear, is additionally provided with the sleeve of free state, the shackle member one and set
Flexure strip is connected between cylinder, the flexure strip is provided with the plectrum being stuck on the circumferential gear.
As a preferred embodiment, banking stop, the banking stop are connected between the shackle member one and sleeve
Between sleeve can axially opposing movement, the flexure strip is symmetrical arranged with banking stop with the adjustment axis.
As another preferred embodiment, the sleeve is made up of the sleeve halfbody of two engagings, the flexure strip
End be fixed therein on a sleeve halfbody, slide plate is fixed with another sleeve halfbody, described in the banking stop insertion
In slide plate and it can move to axial.
As another preferred embodiment, it is also associated between the shoe brake described in two at hydraulic pump
Return spring.
As another preferred embodiment, it is also associated with adjusting spring between the shoe brake described in two, it is described
Adjustment spring is symmetrical arranged with return spring with the center of the brake drum.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：The hydraulic pressure self-regulating brake is in use, certainly
Regulating mechanism is clipped between two shoe brakes, when the gap between the friction plate and brake drum of shoe brake is excessive, is not being stopped
Under car state, two shoe brakes can extrude self-adjusting mechanism, and shackle member one is promoted into adjustment axis, and then extrude flexure strip,
Meeting outwardly convex after flexure strip is squeezed, the plectrum being connected with flexure strip can be moved to next from a tooth on circumferential gear
Individual tooth, when braking next time, hydraulic pump action, two shoe brakes outwards separate, and no longer extrude self-adjusting mechanism, flexure strip exists
Resetted under natural resiliency active force, plectrum promotes circumferential gear rotation, so as to promote adjustment axis to rotate, due to shackle member one and card
Fitting two be mortise-tenon joint on shoe brake, therefore shackle member one can not rotate with shackle member two, so when regulation
When axle rotates, adjustment axis can move axially, and then adjust the length of self-adjusting mechanism, change the distance between two shoe brakes,
The gap reduced between friction plate and brake drum.When the gap between the friction plate and brake drum of shoe brake is in normal range (NR)
When interior, even if flexure strip is squeezed, its deformation degree is also smaller, and plectrum is also unlikely to from the tooth movement on circumferential gear
To next tooth, so circumferential gear would not also rotate, the distance between two shoe brakes are without being adjusted.
Flexure strip is symmetrical arranged with banking stop with adjustment axis, can prevent flexure strip when resetting by shackle member one from regulation
It is projected out in axle, flexure strip and banking stop can play certain position-limiting action positioned at the both sides of shackle member one to it respectively, protect
Demonstrate,prove the normal work of whole brake.
Sleeve is arranged to the structure type of two sleeve halfbody engagings can facilitate its installing/dismounting.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of embodiment of the utility model；
Fig. 2 is the structural representation of self-adjusting mechanism in the embodiment；
In figure：1- brake drums；2- shoe brakes；3- hydraulic pumps；4- adjusts spring；5- shackle members one；6- shackle members two；7-
Adjustment axis；8- circumference gears；9- sleeves；10- flexure strips；11- plectrums；12- banking stops；13- slide plates；14- return springs.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment：
As shown in figure 1, being a kind of embodiment of the utility model hydraulic pressure self-regulating brake, the brake includes brake drum 1
Two shoe brakes 2 internal with it is arranged at, connected by hydraulic pump 3 between two shoe brakes 2, at hydraulic pump 3 also
Provided with return spring 14, two shoe brakes 2 are connected, are also connected between two shoe brakes 2 by the return spring 14
There is adjustment spring 4, the adjustment spring 4 is symmetrical arranged with return spring 14 with the center of the brake drum 1.During brake,
Hydraulic pump 3 is acted, and two shoe brakes 2 are flared out so that the friction plate on the outer surface of shoe brake 2 rubs with brake drum 1
Wipe, realize brake, these are the common knowledge of this area, be will not be repeated here.
As depicted in figs. 1 and 2, self-adjusting mechanism being additionally provided with hydraulic pump 3, the self-adjusting mechanism includes two shackle members, point
Not Wei shackle member 1 and shackle member 26, shackle member described in two mortise-tenon joint between two shoe brakes 2 respectively, this
Sample, two shackle members do not simply fail to rotate, and are also not easy to split away off from shoe brake 2.Self-adjusting mechanism also includes being located at two
Adjustment axis 7 between individual shackle member, shackle member 1 stretch into the end of the adjustment axis 7, the shackle member 1 and adjustment axis 7 it
Between circumferentially opposed can rotate and can axially opposing movement, i.e. shackle member 1 blocks in the inside of adjustment axis 7 in free state
Fitting 26 stretches into the other end of the adjustment axis 7 and coordinated with its screw thread；When adjustment axis 7 rotates, due to the nothing of shackle member 26
Method rotates, then adjustment axis 7 can move along its axial direction, and then adjusts the length of self-adjusting mechanism.
Have circumferential gear 8 in the external stability of adjustment axis 7, be additionally provided with the sleeve 9 of free state, the shackle member 1 with
Flexure strip 10 is connected between sleeve 9, the flexure strip 10 is provided with the plectrum 11 being stuck on the circumferential gear 8.Work as braking
When gap between the friction plate and brake drum 1 of shoe plate 2 is excessive, under not braking state, two shoe brakes 2 can extrude self-regulated
Mechanism, shackle member 1 is promoted into adjustment axis 7, and then extrude flexure strip 10, flexure strip 10 can convex after being squeezed
Rise, the plectrum 11 being connected with flexure strip 10 can be moved to next tooth from a tooth on circumferential gear 8, be braked when next time
When, hydraulic pump 3 acts, and two shoe brakes 2 outwards separate, and no longer extrudes self-adjusting mechanism, and flexure strip 10 acts in natural resiliency
Resetted under power, plectrum 11 promotes circumferential gear 8 to rotate, so as to promote adjustment axis 7 to rotate, due to shackle member 1 and shackle member 26
Be mortise-tenon joint on shoe brake 2, therefore shackle member 1 can not rotate with shackle member 26, so working as adjustment axis 7
During rotation, adjustment axis 7 can move axially, and then adjust the length of self-adjusting mechanism, change the distance between two shoe brakes 2,
The gap reduced between friction plate and brake drum 1.When the gap between the friction plate and brake drum 1 of shoe brake 2 is in normal
In the range of when, even if flexure strip 10 is squeezed, its deformation degree is also smaller, and plectrum 11 is also unlikely to from circumferential gear 8
One tooth is moved to next tooth, so circumferential gear 8 would not also rotate, the distance between two shoe brakes 2
It need not be adjusted.
, should in order to prevent shackle member 1 from being spun off from adjustment axis 7 because flexure strip 10 is connected in shackle member 1
Embodiment is also connected with banking stop 12 between shackle member 1 and sleeve 9, can axial phase between the banking stop 12 and sleeve 9
To movement, the flexure strip 10 is symmetrical arranged with banking stop 12 with the adjustment axis 7, and this structure can prevent flexure strip 10 from existing
Shackle member 1 is projected out from adjustment axis 7 during reset, flexure strip 10 and banking stop 12 are respectively positioned at the both sides of shackle member 1
Certain position-limiting action can be played to it, ensures the normal work of whole brake.
Sleeve 9 in the embodiment is made up of the sleeve halfbody of two engagings, and the end of flexure strip 10 is fixed therein one
On individual sleeve halfbody, slide plate 13 is fixed with another sleeve halfbody, the banking stop 12 is embedded in the slide plate 13 and can phase
To axial movement, ensure between banking stop 12 and slide plate 13 without departing from.
Hydraulic pressure self-regulating brake of the present utility model is simple in construction, easy to use, can realize between friction plate and brake drum
Self adjustment of gap, has good practicality.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (5)
1. hydraulic pressure self-regulating brake, including brake drum and its two internal shoe brake is arranged at, between two shoe brakes
Connected by hydraulic pump, self-adjusting mechanism be additionally provided with the hydraulic pump, it is characterised in that：The self-adjusting mechanism includes two clampings
Part, the shackle member mortise-tenon joint between two shoe brakes, in addition between two shackle members respectively described in two
Adjustment axis, shackle member one stretch into the end of the adjustment axis, circumferentially opposed can be rotated simultaneously between the shackle member one and adjustment axis
Can axially opposing movement, shackle member two stretch into the other end of the adjustment axis and with its screw thread coordinate；
The external stability of the adjustment axis has circumferential gear, is additionally provided with the sleeve of free state, the shackle member one and sleeve it
Between be connected with flexure strip, the flexure strip is provided with the plectrum being stuck on the circumferential gear.
2. hydraulic pressure self-regulating brake as claimed in claim 1, it is characterised in that：It is connected between the shackle member one and sleeve
Banking stop, between the banking stop and sleeve can axially opposing movement, the flexure strip and banking stop are with the regulation axial symmetry
Set.
3. hydraulic pressure self-regulating brake as claimed in claim 2, it is characterised in that：The sleeve is by two sleeve halfbodies engaged
Composition, the end of the flexure strip are fixed therein on a sleeve halfbody, and slide plate is fixed with another sleeve halfbody, described
Banking stop is embedded in the slide plate and can moved to axial.
4. hydraulic pressure self-regulating brake as claimed in claim 1, it is characterised in that：It is also connected between shoe brake described in two
There is the return spring at hydraulic pump.
5. hydraulic pressure self-regulating brake as claimed in claim 4, it is characterised in that：It is also connected between shoe brake described in two
There is adjustment spring, the adjustment spring is symmetrical arranged with return spring with the center of the brake drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751459.4U CN206889537U (en) | 2017-06-26 | 2017-06-26 | hydraulic self-adjusting brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751459.4U CN206889537U (en) | 2017-06-26 | 2017-06-26 | hydraulic self-adjusting brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889537U true CN206889537U (en) | 2018-01-16 |
Family
ID=61317018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720751459.4U Active CN206889537U (en) | 2017-06-26 | 2017-06-26 | hydraulic self-adjusting brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889537U (en) |
-
2017
- 2017-06-26 CN CN201720751459.4U patent/CN206889537U/en active Active
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