CN109404442A - A kind of double sealing structure of disk brake - Google Patents
A kind of double sealing structure of disk brake Download PDFInfo
- Publication number
- CN109404442A CN109404442A CN201811541823.XA CN201811541823A CN109404442A CN 109404442 A CN109404442 A CN 109404442A CN 201811541823 A CN201811541823 A CN 201811541823A CN 109404442 A CN109404442 A CN 109404442A
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- China
- Prior art keywords
- sealing
- annular
- sealing element
- screw rod
- caliper
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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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
Abstract
The present invention provides a kind of double sealing structures of disk brake, belong to field of mechanical technique.It solves the problems, such as that sealing effect acquired by existing disk brake double sealing structure is undesirable.The double sealing structure of this disk brake, disk brake includes caliper, axial limiting is in the screw rod for clamping intracorporal rotating member and being threadedly connected in rotating member, screw rod lower end is pierced by from caliper lower end and rotating member can be rotated relative to screw rod, this double sealing structure includes sealing element two and is positioned at the sealing element one that can be deformed between caliper and screw rod lower end and with moving for screw rod, two sets of sealing element outside rotating member, it is fixed in caliper on the outside of sealing element two, there is annular sealing portion on the inside of sealing element two, annular sealing portion has elasticity, and the inner wall of annular sealing portion leans with the lateral wall of rotating member always under the effect of elasticity.It has many advantages, such as that structure is simple, long service life, sealing effect are good.
Description
Technical field
The invention belongs to field of mechanical technique, are related to pair of a kind of disk brake more particularly to a kind of disk brake
Sealing structure.
Background technique
Disk brake is to be applied to a kind of objective, relatively common in freight car wheel brake at present, it has structure tight
It gathers, the advantage that thermal diffusivity is good, braking is steady, in braking, brake block presses to brake disc from two sides under the action of brake system,
And finally by the brake disc locking of rotation, to achieve the purpose that automobile brake.Disk brake is in braking process, friction
Sector-meeting abrasion, causes its brake clearance to become larger, will have a direct impact on the braking effect of automobile.Therefore, it is just needed on disk brake
Clearance self-regulating mechanism is added, is become larger phenomenon with the gap eliminated between brake disc and friction plate.In general, clearance self-regulating machine
Structure includes that axial limiting but the rotating member that can be circumferentially rotated and the screw rod being threaded in rotating member, screw rod are circumferentially limited
Position will drive screw rod to generate axial movement when rotating member rotates in this way.Screw rod lower end extends to outside the lower end of disk brake,
In order to avoid dust, silt or handstone etc. enter in caliper, a sealing can be generally set between screw rod lower end and caliper
Part, the sealing element can be deformed to which guarantee can be between screw rod lower end and caliper with the axial movement of screw rod always
Keep sealing.But be also due to sealing element and be in the reasons such as contact silt, dust or handstone for a long time, lead to sealing element
It is easy to impaired and makes seal failure, once this occurs, silt, dust or handstone etc. will enter directly into caliper
It is interior to damage to clamping intracorporal other components.
To solve the above-mentioned problems, Chinese patent was once disclosed application No. is 201480049586.9 in particular for quotient
With the disk brake of vehicle, it folds lining ring and sealing element by being arranged in the inner space of caliper, wherein folding lining ring
First of sealing function is played, folds and is located on the outside of bushing on the through-hole wall of caliper bottom, the inside for folding bushing is fixed
In the lower end outside of screw rod, bushing one end is folded when screw rod stretches out can be as screw rod lower end is mobile and deforms for position；Sealing element
Play second sealing function, the outer side positioning of sealing element is stuck in the external screw thread on screw rod on the inside of sealing element, and sealing element
It is axially located relative to screw rod, that is to say, that when screw rod is mobile, sealing element is being motionless, on screw rod external screw thread meeting
The inner sidewall for slipping over sealing element, when folding bushing failure, sealing element just plays sealing function instead of folding bushing, so that sealing
Performance is continued.
But there is also some shortcomingss for above-mentioned technical proposal: since sealing element is axially located relative to screw rod,
Every time when screw rod stretches out or retracts, the external screw thread on screw rod all can protrude into the part in external screw thread on continuous squeeze sealing member,
This undoubtedly can cause to be lost to sealing element, and especially when folding bushing and having not expired, sealing element has just been in loss, together
When due to external screw thread be all it is spiral helicine, by external screw thread repeatedly extrude caused by loss be obviously uneven and irregular
, therefore although sealing element can seal after folding bushing failure, actually acquired sealing effect is but simultaneously
It is undesirable.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, propose a kind of double containment of disk brake
Structure, the technical problem to be solved is that how to improve sealing effect.
Object of the invention can be realized by the following technical scheme:
A kind of double sealing structure of disk brake, disk brake include caliper, axial limiting in the intracorporal rotation of pincers
Part and the screw rod being threadedly connected in rotating member, screw rod lower end is pierced by from caliper lower end and rotating member can turn relative to screw rod
It is dynamic, this double sealing structure include sealing element two and be positioned between caliper and screw rod lower end and can with the movement of screw rod and
The sealing element one being deformed, which is characterized in that described two sets of sealing element are solid on the outside of the sealing element two outside rotating member
It is scheduled in caliper, there is on the inside of the sealing element two annular sealing portion, annular sealing portion has elasticity, and annular sealing portion
Inner wall leans with the lateral wall of rotating member always under the effect of elasticity.
Under normal circumstances, sealing function is played by sealing element one, water, dust, mud etc. is avoided to enter in caliper and shadow
It rings to the intracorporal part of pincers.As existing double sealing structure, when sealing one because long-time uses or the reasons such as impaired occur
When failure, due to the presence of sealing element two, the continuity of sealing performance ensure that.Double sealing structure in compared with the prior art and
Speech, this double sealing structure is by the way that the annular sealing portion of sealing element two to be resisted against on the outer wall of rotating member, although sealing element two is solid
Be scheduled in caliper and rotating member can circumferentially rotate, but the abrasion of the sealing element two caused by being circumferentially rotated by rotating member be will be much
Influence when sealing element two is squeezed through less than the thread on screw rod, therefore improves sealing effect well.
In addition, rotating member circumferentially rotate to caused by sealing element two abrasion be it is uniform and regular, annular seal it is interior
Remaining on after wall abrasion is an annular face, therefore by setting annular sealing portion to have elasticity, can be made cyclic annular close
The inner wall in envelope portion is abutted together with the outer wall of rotating member always under the elastic force effect of itself, so that it is double to well ensure this
The sealing reliability of sealing element two in sealing structure.
In the double sealing structure of above-mentioned disk brake, the caliper lower end is equipped with through-hole, and screw rod lower end passes through
Through-hole, sealing element one are set in through-hole, and two lower end of sealing element is fixed in through-hole, and the annular sealing portion is set to close
In the upper end of sealing two.
Two lower end of sealing element is fixed in through-hole, and annular sealing portion is located in the upper end of sealing element two, it means that when close
The sealing of sealing element two is also directly to realize out of through-hole when the seal failure of sealing one, compared with the prior art in will sealing
For the lower end of part two is fixed in caliper inner cavity, sealing effect can also be improved to a certain extent in this way.
In the double sealing structure of above-mentioned disk brake, the sealing element two includes the ontology bowl-shape in inversion,
The upper surface of ontology has centre bore, and the annular sealing portion is set in the centre bore of ontology, and the sealing element one includes
For the extrusome of annular, the section of extrusome is corrugated, and flexible body portion is located in the lower end of ontology.
Due to sealing element one include for annular extrusome and extrusome section it is corrugated, being conventionally should not
The lower end of sealing element two is fixed in through-hole, because this influences whether deformation of the extrusome when screw rod stretches out or retracts,
Conventional selection so to those skilled in the art is exactly that the lower end of sealing element two is fixed on the inner wall of caliper, this
Although sample can play certain sealing function, it is good that sealing effect is obviously not so good as directly to be sealed from through hole.
And the double sealing structure of this disk brake sets sealing element two to include the ontology bowl-shape in inversion, so not
Only the lower end of sealing element two can be made to be fixed in through-hole, while the flexible body portion of sealing element one is located in the lower end of ontology,
The space of resigning can be provided for the radial expansion of extrusome again, change the sealing station of sealing element two to improve sealing effect
While in turn ensure the normal seal operation of sealing element one.
In the double sealing structure of above-mentioned disk brake, the annular sealing portion include spring annular in shape and
The sealing lip extended downwardly from the center bore inner wall of ontology, the sealing lip lateral wall are equipped with annular positioning groove, and spring is set to
The elastic force of annular positioning groove and spring inwardly acts on sealing lip.
Spring is set in the annular positioning groove on the outside of sealing lip, and the elastic force of spring inwardly acts on sealing lip and makes to seal
Lip has the trend to contract always, and so the inner wall of sealing lip will be leant with the outer wall of rotating member always to begin
End form is worn very little brought by rotating member rotates, can be compensated automatically using the elastic force of spring at sealing,
To guarantee that this double sealing structure can further increase sealing effect.
In the double sealing structure of above-mentioned disk brake, the ontology lower end outside is equipped with annular support part, ring
Shape support portion and through-hole, which are formed, to be interference fitted, and has annular shoulder block, the upper surface of annular support part in the through-hole upper port
It leans with the lower end surface of annular shoulder block.
Annular support part and through-hole, which are formed, to be interference fitted, while annular shoulder block, circumferential support being arranged in through-hole upper port
The upper surface in portion and the lower end surface of annular shoulder block lean, and not only can position to the position of sealing element two, and
More important is the sealing means that can make just to form face contact at two between sealing element two and caliper, first is that annular support part
Between lateral wall and through-hole wall, second is that between the upper surface of annular support part and the lower end surface of annular shoulder block.Even when working as
Sealing lip by spring effect and when leading to occur between the lateral wall of annular support part and through-hole wall gap to contract, ring
The upper surface of shape support portion is still and the lower end surface of annular shoulder block leans and makes between sealing element two and caliper still
It is capable of forming sealing, therefore can also improve sealing effect to a certain extent in this way.
In the double sealing structure of above-mentioned disk brake, circular orientation portion, annular are equipped on the outside of the extrusome
Positioning region and through-hole, which are formed, to be interference fitted, and the upper surface in circular orientation portion and the lower end surface of annular support part lean.
Circular orientation portion and through-hole, which are formed, to be interference fitted, while the lower end of the upper surface in circular orientation portion and annular support part
Face leans, this makes the sealing means still between sealing element one and through-hole with face contact at two, and one is circular orientation portion
Between outer wall and through-hole wall, two between the upper surface in circular orientation portion and the lower end surface of annular support part, seals changing
The normal seal operation of sealing element one is in turn ensured while the sealing station of part two is to improve sealing effect.
In the double sealing structure of above-mentioned disk brake, the screw rod lower end is equipped with light bar segment and under light bar segment
End is equipped with the connector of protrusion, is equipped with circumferentially positioned impeller below caliper, connector extends to outside caliper lower end simultaneously from through-hole
It is connected with impeller, annular seal is equipped on the inside of the extrusome, the outer diameter of screw rod is greater than the outer diameter of light bar segment, stretches
Body covers in light bar segment and annular seal and light bar segment are formed and be interference fitted.
Conventional screw rod is generally provided only with connector, but connector is with impeller due to that will be connected, and screw rod will with turn
Moving part is threadedly coupled, therefore light bar segment and connector is arranged in screw rod lower end, in this way forms annular seal and light bar segment
It is full of and cooperates and extrusome is made to be fixed together with screw rod, when rotating member rotates and releases screw rod, extrusome can be with spiral shell
The release of bar and extend to play sealing function, while being that light again will not be as the external screw thread on the outside of screw rod on the outside of light bar segment
Annular seal is caused to squeeze.
Compared with prior art, the double sealing structure of this disk brake has the advantage that
1, annular sealing portion is set in the inside of sealing element two and is resisted against the inner wall of annular sealing portion on rotating member, mention
The high sealing effect of sealing element two and entire double sealing structure, while setting annular sealing portion to there is elasticity, make ring
Shape sealing can compensate abrasion automatically to guarantee the sealing reliability of sealing element two；
2, it sets bowl-shape in being inverted for the ontology of sealing element two, annular support part is set in the lower end outside of ontology, is led to
It crosses annular support part to be interference fitted in through-hole so that sealing element two can be directly sealed from through hole, further improve
Sealing effect, while ontology lower end can be the normal seal operation that sealing element one concedes space to guarantee sealing element one again；
3, by the cooperation of annular support part, circular orientation portion and annular shoulder block, so that sealing element one and sealing element two are equal
The sealing means of face contact at two are capable of forming, the sealing effect of this double sealing structure is improved.
Detailed description of the invention
Fig. 1 is the cross-sectional view of disk brake.
Fig. 2 is the enlarged drawing of the double sealing structure of this disk brake at A in Fig. 1.
In figure, 1, caliper；1a, through-hole；1a1, annular shoulder block；2, rotating member；3, screw rod；3a, light bar segment；3b, connector；
4, sealing element one；4a, extrusome；4b, circular orientation portion；4c, annular seal；5, sealing element two；5a, ontology；5b, ring-type are close
Envelope portion；5b1, sealing lip；5b2, spring；5c, annular support part；6, impeller；7, driving gear；8, driven gear；9, it is driven
Gear；10, push-plate；11, synchronous plate.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, disk brake includes caliper 1 and the brake clearance auto-adjusting mechanism that is set in caliper 1, braking
Clearance self-regulating mechanism includes axial limiting in the rotating member 2 in caliper 1 and the screw rod 3 being threadedly connected in rotating member 2, rotation
Part 2 can be rotated relative to screw rod 3, and rotating member 2 can be screwed pipe or nut, and the lower end of screw rod 3 is worn to the lower end of rotating member 2
Outside, in general, rotating member 2 and screw rod 3, which are formed by structure, two groups, is fixed with driving gear on one of rotating member 2
7, driven gear 8 is fixed on another rotating member 2, and the transmission gear 9 that can be rotated, driving cog are additionally provided in caliper 1
Wheel 9 is meshed with driving gear 7 and driven gear 8 respectively.
As shown in Figure 1, the lower section of caliper 1 is equipped with impeller 6, the bottom of caliper 1 is correspondingly provided with two through-hole 1a, two through hole
1a and two screw rods 3 correspond, and the lower end of two screw rods 3 extends to outside caliper 1 through corresponding through-hole 1a and is connected with impeller 6
It connects, since the lower end of two screw rods 3 is connected with impeller 6, is equivalent to impeller 6 and two screw rods 3 are in circumferential limit
Then the state that position is lived can make spiral shell along the effect of screw thread then screw rod 3 not can rotate when impeller 6 rotates
Bar 3 generates axial movement, so that impeller 6 be released.
Since brake clearance auto-adjusting mechanism is actually by two groups of rotating members 2 and 3 structure of screw rod, then disk when actual production
Also is provided with two groups of double sealing structures in formula brake, but due to two groups of double sealing structures be it is identical, in the present embodiment
It is described only for single group double sealing structure.
As shown in Fig. 2, the double sealing structure of this disk brake includes sealing element 1 and sealing element 25, sealing element one
4 are set between through-hole 1a and screw rod 3 and sealing element 1 being capable of moving and be deformed, sealing element 25 with screw rod 3
Outside be fixed in caliper 1 and 25 sets of sealing element outside rotating member 2, sealing element 25 has annular sealing portion 5b, cyclic annular close
Envelope portion 5b has elasticity, and the inner wall of annular sealing portion 5b offsets with the lateral wall of corresponding rotating member 2 always under the effect of elasticity
It leans on.
As shown in Fig. 2, sealing element 1 include for annular extrusome 4a, the section of extrusome 4a is corrugated, extrusome
It is equipped with circular orientation portion 4b, circular orientation portion 4b and through-hole 1a on the outside of 4a and forms interference fit.3 lower end of screw rod is equipped with light bar segment 3a
And be equipped with the connector 3b of protrusion in the lower end light bar segment 3a, connector 3b extended to outside 1 lower end of caliper from through-hole 1a and with impeller 6
It is connected, annular seal 4c is equipped on the inside of extrusome 4a, the outer diameter of screw rod 3 is greater than the outer diameter of light bar segment 3a, extrusome 4a set
On light bar segment 3a, and annular seal 4c and light bar segment 3a is formed and is interference fitted.
As shown in Figure 1, impeller 6 can be a rectangular block-like push plate either impeller 6 include two push-plates 10 and
Synchronous plate 11.It is specifically that directly the connector 3b of two screw rods 3 is connected with push plate when push plate, this scheme can refer to application number
For a kind of clearance self-regulating mechanism of automobile pressure disc brake disclosed in 201110189138.8.In the present embodiment, have
Body is used as impeller 6 using two push-plates 10 and synchronous plate 11, and two push-plates 10 are respectively fitted over to the connector 3b of two screw rods 3
On, then two connector 3b are fixed together using synchronous plate 11, while synchronous plate 11 exists two push-plates, 10 axial limiting
On connector 3b, this scheme can refer to that application No. is a kind of arrestment mechanisms disclosed in 201710769308.6.
As shown in Fig. 2, the lower end of sealing element 25 is fixed in through-hole 1a, the upper end of sealing element 25 is protruded into caliper 1 simultaneously
It covers outside the lower end of rotating member 2, annular sealing portion 5b is located in the upper end of sealing element 25.For sealing element 25,
Sealing element 25 includes the ontology 5a bowl-shape in inversion, and the upper surface of ontology 5a has centre bore, and annular sealing portion 5b is set to ontology
In the centre bore of 5a, the part extrusome 4a of sealing element 1 is located in the lower end of ontology 5a, is inverted under the ontology 5a of bowl structure
End can concede space for the flexible of extrusome 4a, protect again while through-hole 1a so that 25 lower end of sealing element be made to be capable of fixing
The normal sealing performance of sealing element 1 is demonstrate,proved.
As shown in Fig. 2, annular sealing portion 5b includes spring 5b2 annular in shape and downward from the center bore inner wall of ontology 5a
The lateral wall of the sealing lip 5b1 of extension, sealing lip 5b1 are equipped with annular positioning groove, and spring 5b2 is set on locating slot inner spring 5b2's
The inside institute of elastic force is on sealing lip 5b1.The lower end outside of ontology 5a is equipped with annular support part 5c, and annular support part 5c is located at logical
In the 1a of hole and annular support part 5c and through-hole 1a is formed and is interference fitted, and the upper surface of circular orientation portion 4b is with annular support part 5c's
Lower end surface leans.There is upper surface and the annular shoulder block of annular shoulder block 1a1, annular support part 5c in the upper port of through-hole 1a
The lower end surface of 1a1 leans.
Under normal circumstances, sealing function is played by sealing element 1, avoid water, dust, mud etc. enter caliper 1 in and
Influence the part in caliper 1.As existing double sealing structure, when sealing one because long-time uses or the reasons such as impaired go out
When now failing, due to the presence of sealing element 25, the continuity of sealing performance ensure that.Double density sealed knot in compared with the prior art
For structure, this double sealing structure is by the way that the annular sealing portion 5b of sealing element 25 to be resisted against on the outer wall of rotating member 2, although turning
Moving part 2 can circumferentially rotate, but circumferentially rotating the abrasion of caused sealing element 25 by rotating member 2 is on screw rod 3 to be far smaller than
Influence of thread when squeezing through sealing element 25, therefore improve sealing effect well.
It is uniform and regular, the inner wall of annular seal 4c that rotating member 2, which is circumferentially rotated to abrasion caused by sealing element 25,
Remaining on after abrasion is an annular face, therefore by setting annular sealing portion 5b to have elasticity, can be made cyclic annular close
Outer wall of the inner wall of envelope portion 5b under the elastic force effect of itself always with rotating member 2 is abutted together, to well ensure
The sealing reliability of sealing element 25 in this double sealing structure.
In addition, annular support part 5c and through-hole 1a forms upper surface and ring of the interference fit in conjunction with upper annular support portion 5c
The lower end surface of shape shoulder block 1a1, which leans, makes to be formed the sealing means of face contact at two between sealing element 25 and through-hole 1a, and annular is fixed
Position portion 4b and through-hole 1a forms interference fit in conjunction with the upper surface of upper circular orientation portion 4b and the lower end surface of annular support part 5c
Leaning makes to also form the sealing means of face contact at two between sealing element 1 and through-hole 1a, and it is double to further increase this
The sealing effect of sealing structure.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of double sealing structure of disk brake, disk brake includes caliper (1), axial limiting in caliper (1)
Rotating member (2) and the screw rod (3) being threadedly connected in rotating member (2), screw rod (3) lower end are pierced by and turn from caliper (1) lower end
Moving part (2) can be rotated relative to screw rod (3), this double sealing structure includes sealing element two (5) and is positioned at caliper (1) and spiral shell
It and can be with the sealing element one (4) for moving and being deformed of screw rod (3) between bar (3) lower end, which is characterized in that described
Sealing element two (5) cover rotating member (2) outside, be fixed on the outside of the sealing element two (5) in caliper (1), the sealing element
There is annular sealing portion (5b) on the inside of two (5), annular sealing portion (5b) has elasticity, and the inner wall of annular sealing portion (5b) is in bullet
Lateral wall under power effect always with rotating member (2) leans.
2. the double sealing structure of disk brake according to claim 1, which is characterized in that described caliper (1) lower end
Equipped with through-hole (1a), screw rod (3) lower end passes through through-hole (1a), and sealing element one (4) is set in through-hole (1a), the sealing element two
(5) lower end is fixed in through-hole (1a), and the annular sealing portion (5b) is set in the upper end of sealing element two (5).
3. the double sealing structure of disk brake according to claim 2, which is characterized in that the sealing element two (5)
Including in bowl-shape ontology (5a) is inverted, the upper surface of ontology (5a) has centre bore, and the annular sealing portion (5b) is set to
In the centre bore of ontology (5a), the sealing element one (4) include for annular extrusome (4a), the section of extrusome (4a) is in
Corrugated, extrusome (4a) is partially in the lower end of ontology (5a).
4. the double sealing structure of disk brake according to claim 3, which is characterized in that the annular sealing portion
(5b) includes spring annular in shape (5b2) and the sealing lip (5b1) that extends downwardly from the center bore inner wall of ontology (5a), described
Sealing lip (5b1) lateral wall be equipped with annular positioning groove, spring (5b2) be set to the elastic force of annular positioning groove and spring (5b2) to
It inside acts on sealing lip (5b1).
5. the double sealing structure of disk brake according to claim 3 or 4, which is characterized in that the ontology (5a)
Lower end outside is equipped with annular support part (5c), and annular support part (5c) and through-hole (1a) are formed and be interference fitted, the through-hole
There is annular shoulder block (1a1), the lower end surface phase of the upper surface of annular support part (5c) and annular shoulder block (1a1) in (1a) upper port
Against.
6. the double sealing structure of disk brake according to claim 5, which is characterized in that the extrusome (4a) is outside
Side is equipped with circular orientation portion (4b), and circular orientation portion (4b) and through-hole (1a), which is formed, to be interference fitted, and circular orientation portion (4b's) is upper
End face and the lower end surface of annular support part (5c) lean.
7. the double sealing structure of disk brake according to claim 6, which is characterized in that described screw rod (3) lower end
It is equipped with the connector (3b) of protrusion equipped with light bar segment (3a) and in the light bar segment lower end (3a), is equipped with below caliper (1) circumferentially positioned
Impeller (6), connector (3b) extends to outside caliper (1) lower end from through-hole (1a) and is connected with impeller (6), and described stretches
It is equipped with annular seal (4c) on the inside of contracting body (4a), the outer diameter of screw rod (3) is greater than the outer diameter of light bar segment (3a), extrusome (4a) set
On light bar segment (3a) and annular seal (4c) and light bar segment (3a) are formed and are interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541823.XA CN109404442B (en) | 2018-12-17 | 2018-12-17 | Double-sealing structure of disc brake |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692341A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Telescopic sealing element |
| CN111692340A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Built-in floating telescopic sealing element |
| CN112728837A (en) * | 2019-10-29 | 2021-04-30 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112728838A (en) * | 2019-10-29 | 2021-04-30 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112728839A (en) * | 2019-10-29 | 2021-04-30 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112747517A (en) * | 2019-10-29 | 2021-05-04 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001828A1 (en) * | 1979-02-23 | 1980-09-04 | Garlock Inc | Disc brake assembly and method |
| GB8307316D0 (en) * | 1982-05-19 | 1983-04-20 | Teves Gmbh Alfred | Floating-caliper disc brake |
| JP2003254366A (en) * | 2002-02-28 | 2003-09-10 | Tokico Ltd | Electric disc brake |
| CN101852253A (en) * | 2010-06-11 | 2010-10-06 | 宁波三浪环球车辆部件有限公司 | Air disc brake |
| CN101868644A (en) * | 2007-12-12 | 2010-10-20 | 威伯科车轮制动有限公司 | Pneumatically and/or electromechanically actuable commercial vehicle disc brake |
| EP2306040A1 (en) * | 2009-10-05 | 2011-04-06 | BPW Bergische Achsen KG | Disk brake and guide bar of a disk brake |
| EP2469118A2 (en) * | 2010-12-22 | 2012-06-27 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Disc brake |
| EP2489897A1 (en) * | 2011-02-17 | 2012-08-22 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Disc brake |
| CN203516556U (en) * | 2013-09-13 | 2014-04-02 | 重庆昌德成电子有限公司 | Automatic compensation mechanical disc type brake |
| CN104196922A (en) * | 2014-08-20 | 2014-12-10 | 吉林大学 | Worm gear, worm, ball and wedge-disc type electronic parking brake |
| CN204041784U (en) * | 2014-08-20 | 2014-12-24 | 吉林大学 | Worm gear ball wedge disc type electric parking brake |
| CN105531494A (en) * | 2013-09-10 | 2016-04-27 | 威伯科欧洲有限责任公司 | Disc Brake, In Particular for Commercial Vehicles |
-
2018
- 2018-12-17 CN CN201811541823.XA patent/CN109404442B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980001828A1 (en) * | 1979-02-23 | 1980-09-04 | Garlock Inc | Disc brake assembly and method |
| GB8307316D0 (en) * | 1982-05-19 | 1983-04-20 | Teves Gmbh Alfred | Floating-caliper disc brake |
| JP2003254366A (en) * | 2002-02-28 | 2003-09-10 | Tokico Ltd | Electric disc brake |
| CN101868644A (en) * | 2007-12-12 | 2010-10-20 | 威伯科车轮制动有限公司 | Pneumatically and/or electromechanically actuable commercial vehicle disc brake |
| EP2306040A1 (en) * | 2009-10-05 | 2011-04-06 | BPW Bergische Achsen KG | Disk brake and guide bar of a disk brake |
| CN101852253A (en) * | 2010-06-11 | 2010-10-06 | 宁波三浪环球车辆部件有限公司 | Air disc brake |
| EP2469118A2 (en) * | 2010-12-22 | 2012-06-27 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Disc brake |
| EP2489897A1 (en) * | 2011-02-17 | 2012-08-22 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Disc brake |
| CN105531494A (en) * | 2013-09-10 | 2016-04-27 | 威伯科欧洲有限责任公司 | Disc Brake, In Particular for Commercial Vehicles |
| CN203516556U (en) * | 2013-09-13 | 2014-04-02 | 重庆昌德成电子有限公司 | Automatic compensation mechanical disc type brake |
| CN104196922A (en) * | 2014-08-20 | 2014-12-10 | 吉林大学 | Worm gear, worm, ball and wedge-disc type electronic parking brake |
| CN204041784U (en) * | 2014-08-20 | 2014-12-24 | 吉林大学 | Worm gear ball wedge disc type electric parking brake |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728837A (en) * | 2019-10-29 | 2021-04-30 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112728838A (en) * | 2019-10-29 | 2021-04-30 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112728839A (en) * | 2019-10-29 | 2021-04-30 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112747517A (en) * | 2019-10-29 | 2021-05-04 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN111692341A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Telescopic sealing element |
| CN111692340A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Built-in floating telescopic sealing element |
| CN111692341B (en) * | 2020-06-12 | 2022-02-22 | 东台市岳东橡胶密封件厂 | Telescopic sealing element |
| CN111692340B (en) * | 2020-06-12 | 2022-03-22 | 东台市岳东橡胶密封件厂 | Built-in floating telescopic sealing element |
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| CN109404442B (en) | 2023-08-29 |
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