CN115182944A - Intermediate shaft brake sealing and positioning structure and intermediate shaft brake - Google Patents
Intermediate shaft brake sealing and positioning structure and intermediate shaft brake Download PDFInfo
- Publication number
- CN115182944A CN115182944A CN202210655141.1A CN202210655141A CN115182944A CN 115182944 A CN115182944 A CN 115182944A CN 202210655141 A CN202210655141 A CN 202210655141A CN 115182944 A CN115182944 A CN 115182944A
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- China
- Prior art keywords
- intermediate shaft
- shaft brake
- sealing
- brake
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 101
- 239000000463 material Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006168 hydrated nitrile rubber Polymers 0.000 description 1
Images
Classifications
-
- 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
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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
- 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
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/08—Seals, e.g. piston seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention discloses a sealing and positioning structure of an intermediate shaft brake and the intermediate shaft brake, which comprises a first sealing ring, a second sealing ring and a support ring; the first sealing ring, the second sealing ring and the support ring are sleeved on the piston of the intermediate shaft brake at intervals; the first sealing ring, the second sealing ring and the supporting ring are arranged in contact with a cylinder cover of the intermediate shaft brake. The first sealing ring and the second sealing ring which are arranged by the sealing and positioning structure effectively prevent gas from a whole vehicle from entering the transmission from one side of the brake piston, and simultaneously prevent transmission oil from entering the brake piston and the brake cylinder cover, the support ring effectively realizes the positioning and the supporting of the brake piston and the brake cylinder cover, the abrasion caused by the direct contact of the brake piston and the brake cylinder cover is avoided, and the impurities in the cylinder are effectively reduced. The sealing and positioning structure has the advantages of reasonable design, convenience and quickness in installation, good sealing effect and capability of effectively improving the braking effect of the intermediate shaft brake.
Description
Technical Field
The invention belongs to the field of sealing and positioning of an intermediate shaft brake, and relates to a sealing and positioning structure of an intermediate shaft brake and an intermediate shaft brake.
Background
The AMT adopts an electric control pneumatic control intermediate shaft brake so as to realize the braking of the intermediate shaft. Therefore, the left side of the brake piston is an air source from the whole vehicle, and the right side of the piston is provided with lubricating oil from the transmission, so that a sealing ring is required to be arranged on the piston to prevent the air from the whole vehicle from entering the transmission from the left side of the piston and prevent the lubricating oil in the transmission from leaking to the left side of the piston to influence the braking effect of the intermediate shaft brake.
As shown in fig. 1, the sealing function is realized by a K-shaped sealing ring with double lips in the traditional sealing structure, however, the structure is directly positioned with the cylinder cover of the brake through the brake piston, the positioning gap is 0.1-0.2 mm in consideration of processing error and assembly problems, and because the brake piston is directly contacted with the aluminum alloy material adopted by the cylinder cover, and because the aluminum alloy material is not wear-resistant, the piston is easily worn and generates the problem of oil leakage when the piston moves back and forth, and simultaneously, because the piston is worn and causes the increase of impurities in the cylinder, the braking effect of the intermediate shaft brake is further influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a sealing and positioning structure of an intermediate shaft brake and the intermediate shaft brake, so that the problem that oil on one side of the brake piston leaks to one side of a brake cylinder cover due to the fact that the brake piston is abraded is effectively solved, and meanwhile, gas from a whole vehicle is prevented from entering the inside of a transmission from the other side of the piston.
The invention is realized by the following technical scheme:
a sealing and positioning structure of an intermediate shaft brake comprises a first sealing ring, a second sealing ring and a support ring;
the first sealing ring, the second sealing ring and the support ring are sleeved on the piston of the intermediate shaft brake at intervals;
the first sealing ring, the second sealing ring and the supporting ring are arranged in contact with a cylinder cover of the intermediate shaft brake.
Preferably, the first sealing ring and the second sealing ring are both made of rubber materials.
Preferably, the first sealing ring and the second sealing ring are lip-shaped sealing rings.
Preferably, the first sealing ring is in interference fit with a gap between a piston of the intermediate shaft brake and a cylinder cover of the intermediate shaft brake;
and the second sealing ring is in interference fit with a clearance between the piston of the intermediate shaft brake and the cylinder cover of the intermediate shaft brake.
Preferably, the support ring is made of plastic material.
Preferably, the clearance between the support ring and the cylinder head of the intermediate shaft brake is less than 0.096mm.
Preferably, the support ring is provided with an opening.
Preferably, the radial two sides of the support ring are provided with chamfers.
Preferably, a first groove, a second groove and a third groove are formed in the axial direction of the piston of the intermediate shaft brake; the first sealing ring, the second sealing ring and the support ring are respectively clamped with the first groove, the second groove and the third groove.
An intermediate shaft brake comprises the sealing and positioning structure.
Compared with the prior art, the invention has the following beneficial technical effects:
the utility model provides a sealed location structure of jackshaft stopper, includes first sealing washer, second sealing washer and support ring, inside first sealing washer and second sealing washer effectively prevented to come from the gas of whole car and get into the derailleur from stopper piston one side, prevent simultaneously that derailleur fluid from getting into inside stopper piston and the stopper cylinder head, the support ring effectively realizes the location and the support of stopper piston and stopper cylinder head, the wearing and tearing that the direct contact of having avoided stopper piston and stopper cylinder head leads to have effectively reduced the inside impurity of cylinder. The sealing and positioning structure has the advantages of reasonable design, convenience and quickness in installation, good sealing effect and capability of effectively improving the braking effect of the intermediate shaft brake.
Furthermore, the first sealing ring and the second sealing ring are made of rubber materials, and cost is effectively controlled on the basis of effectively meeting sealing performance.
Furthermore, the first sealing ring and the second sealing ring are lip-shaped sealing rings, and the sealing ring with the structure is simple in structure and good in sealing effect.
Furthermore, the first sealing ring is in interference fit with a clearance between a piston of the intermediate shaft brake and a cylinder cover of the intermediate shaft brake; the second sealing ring is in clearance interference fit with the piston of the intermediate shaft brake and the cylinder cover of the intermediate shaft brake, so that the sealing effect is effectively improved.
Furthermore, the support ring is made of plastic materials, so that the abrasion resistance of the materials is better, and the abrasion problem of the back-and-forth movement of the brake piston is effectively solved.
Furthermore, the clearance between the support ring and the cylinder cover of the intermediate shaft brake is smaller than 0.096mm, and the positioning between the cylinder cover of the brake and the piston of the intermediate shaft brake is facilitated.
Furthermore, an opening is arranged on the support ring; the radial both sides of support ring all are equipped with the chamfer, the assembly of the support ring of being convenient for.
Furthermore, the first sealing ring, the second sealing ring and the support ring are respectively arranged to be connected with the first groove, the second groove and the third groove in the intermediate shaft brake piston in a clamped mode, and therefore the installation efficiency of the first sealing ring, the second sealing ring and the support ring is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a prior art seal positioning structure for an intermediate shaft brake;
FIG. 2 is a seal positioning structure of the intermediate shaft brake in the present invention;
fig. 3 is a schematic view of the structure of the support ring in the present invention.
Wherein: 1. piston, 2, cylinder head, 3, air pipe joint, 4, first sealing washer, 5, support ring, 52, opening, 6, second sealing washer, 41, first recess, 61, second recess, 51, third recess, 7, K type sealing washer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the product of the present invention is used to usually place, it is only for convenience of describing the present invention and simplifying the description, but it is not necessary to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be broadly construed and interpreted as including, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in figure 1, the traditional sealing structure realizes the sealing function through a double-lip K-shaped sealing ring 7, and meanwhile, the structure is directly positioned with a brake cylinder cover through a brake piston, so that the sealing effect is poor, and in addition, the piston 1 is in direct contact with an aluminum alloy material adopted by the cylinder cover 2, so that the impurities in the cylinder are increased due to easy friction, and the braking effect of an intermediate shaft brake is influenced.
As shown in fig. 2, the invention discloses a sealing and positioning structure of an intermediate shaft brake, which comprises a first sealing ring 4, a second sealing ring 6 and a support ring 5; the first sealing ring 4, the second sealing ring 6 and the support ring 5 are sleeved on the piston 1 of the intermediate shaft brake at intervals; preferably, the piston 1 of the intermediate shaft brake is provided with a first groove 41, a second groove 61 and a third groove 51 in the axial direction; first sealing washer 4, second sealing washer 6 and support ring 5 set up with first recess 41, second recess 61 and third recess 51 joint respectively, have effectively improved the installation effectiveness of first sealing washer 4, second sealing washer 6 and support ring 5. First sealing washer 4 and second sealing washer 6 are the K type sealing washer of single lip mouth, and one prevents that the gas that comes from whole car from getting into inside the derailleur from piston 1 left side, and another prevents that derailleur fluid from getting into inside piston 1 and cylinder head 2. The first seal ring 4 may be a gas seal lip seal and the second seal ring 6 may be an oil seal lip seal. First sealing washer 4 and second sealing washer 6 are rubber materials, and the model can be HNBR, on effectively satisfying the basis of sealing performance, effective control cost. When the assembly, seal gas lip seal lip towards 1 left side of stopper piston, guarantee to seal gas smoothly, seal oil lip seal lip towards 1 right side of stopper piston, guarantee to seal oil smoothly. The first sealing ring 4, the second sealing ring 6 and the supporting ring 5 are arranged in contact with the cylinder head 2 of the intermediate shaft brake. The first sealing ring 4 is in clearance interference fit with the piston 1 of the intermediate shaft brake and the cylinder cover 2 of the intermediate shaft brake, and the second sealing ring 6 is in clearance interference fit with the piston 1 of the intermediate shaft brake and the cylinder cover 2 of the intermediate shaft brake. Effectively improving the sealing effect.
As shown in fig. 3, the support ring 5 is provided with an opening 52; the radial both sides of support ring 5 all are equipped with the chamfer. The support ring 5 is made of wear-resistant plastic material, and may be PA66, but is not limited to PA66. Compared with the original aluminum alloy material, the wear resistance is better, and the problem of abrasion caused by the back-and-forth movement of the brake piston 1 is solved; the clearance between the support ring 5 and the cylinder cover 2 of the intermediate shaft brake is less than 0.096mm, and compared with the positioning clearance of 0.1-0.2 mm of the original positioning structure, the positioning clearance is smaller and the positioning is more accurate.
The sealing and positioning structure of the intermediate shaft brake can effectively prevent gas from a whole vehicle from entering the transmission from one side of the brake piston, and prevent oil of the transmission from entering the brake piston and the interior of the brake cylinder cover, thereby improving the sealing performance of the original structure and solving the problem of leakage of the oil at the right end of the brake piston to one side of the brake cylinder cover. The support ring effectively realizes the location and the support of stopper piston and stopper cylinder head, has avoided the wearing and tearing that the direct contact of stopper piston and stopper cylinder head leads to, has effectively reduced the inside impurity of cylinder. The sealing and positioning structure has the advantages of reasonable design, convenient installation, good sealing effect and effective improvement on the braking effect of the intermediate shaft brake.
When the intermediate shaft brake works, the corresponding electromagnetic valve is opened, gas from the whole vehicle enters the cavity between the brake piston 1 and the brake cylinder cover 2 through the gas pipe joint 3, and then the brake piston 1 is pushed to move forwards, so that the intermediate shaft brake is realized. When the intermediate shaft brake needs to release the brake, the corresponding electromagnetic valve is closed, the brake piston 1 returns due to the air pressure difference of the left side and the right side of the brake piston 1 and the action of the spring, and the brake release function of the intermediate shaft brake is realized
The invention also provides an intermediate shaft brake which comprises the sealing and positioning structure.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The sealing and positioning structure of the intermediate shaft brake is characterized by comprising a first sealing ring (4), a second sealing ring (6) and a support ring (5);
the first sealing ring (4), the second sealing ring (6) and the support ring (5) are sleeved on the piston (1) of the intermediate shaft brake at intervals;
the first sealing ring (4), the second sealing ring (6) and the support ring (5) are arranged in contact with a cylinder cover (2) of the intermediate shaft brake.
2. An intermediate shaft brake seal positioning structure according to claim 1, characterized in that the first seal ring (4) and the second seal ring (6) are both made of rubber material.
3. An intermediate shaft brake seal positioning structure as claimed in claim 1, characterized in that the first seal ring (4) and the second seal ring (6) are lip seal rings.
4. An intermediate shaft brake seal positioning structure according to claim 1, characterized in that the first seal ring (4) is in interference fit with the clearance between the piston (1) of the intermediate shaft brake and the cylinder head (2) of the intermediate shaft brake;
and the second sealing ring (6) is in clearance interference fit with the piston (1) of the intermediate shaft brake and the cylinder cover (2) of the intermediate shaft brake.
5. An intermediate shaft brake seal positioning arrangement according to claim 1, characterized in that the support ring (5) is of plastic material.
6. An intermediate shaft brake seal positioning arrangement according to claim 1, characterized in that the clearance between the support ring (5) and the cylinder head (2) of the intermediate shaft brake is less than 0.096mm.
7. An intermediate shaft brake seal positioning structure as claimed in claim 1, characterized in that the support ring (5) is provided with an opening (52).
8. An intermediate shaft brake seal positioning structure as claimed in claim 1, characterized in that both sides of the support ring (5) in the radial direction are chamfered.
9. An intermediate shaft brake seal positioning structure as defined in claim 1, wherein the piston (1) of the intermediate shaft brake is provided with a first groove (41), a second groove (61) and a third groove (51) in the axial direction; the first sealing ring (4), the second sealing ring (6) and the support ring (5) are respectively connected with the first groove (41), the second groove (61) and the third groove (51) in a clamping mode.
10. An intermediate shaft brake comprising a seal positioning structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210655141.1A CN115182944A (en) | 2022-06-10 | 2022-06-10 | Intermediate shaft brake sealing and positioning structure and intermediate shaft brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210655141.1A CN115182944A (en) | 2022-06-10 | 2022-06-10 | Intermediate shaft brake sealing and positioning structure and intermediate shaft brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115182944A true CN115182944A (en) | 2022-10-14 |
Family
ID=83513195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210655141.1A Pending CN115182944A (en) | 2022-06-10 | 2022-06-10 | Intermediate shaft brake sealing and positioning structure and intermediate shaft brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115182944A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410321A (en) * | 2011-09-24 | 2012-04-11 | 芜湖众发汽车制动***有限公司 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
| CN203463520U (en) * | 2013-09-29 | 2014-03-05 | 宁波科达制动器制造有限公司 | Brake caliper with split-structure caliper body |
| CN103697092A (en) * | 2013-12-31 | 2014-04-02 | 贵州永兴风能制动器有限责任公司 | High-compressive hydraulic cylinder |
| CN105065518A (en) * | 2015-09-01 | 2015-11-18 | 南车长江车辆有限公司 | Unit braking cylinder with hand braking device |
| CN105927733A (en) * | 2016-06-20 | 2016-09-07 | 陕西法士特汽车传动集团有限责任公司 | Low-gear boosting type auxiliary box air cylinder |
| CN106641040A (en) * | 2016-12-14 | 2017-05-10 | 陕西航空电气有限责任公司 | Intermediate shaft brake piston |
| CN208221576U (en) * | 2018-03-21 | 2018-12-11 | 西安法士特汽车传动有限公司 | A kind of built-up piston assembly |
| CN109296679A (en) * | 2018-11-17 | 2019-02-01 | 湖南运达机电科技股份有限公司 | A kind of disc type braking tong |
| CN111043185A (en) * | 2019-12-17 | 2020-04-21 | 一汽解放汽车有限公司 | Integrated low-delay intermediate shaft brake |
| CN114033849A (en) * | 2021-11-04 | 2022-02-11 | 陕西法士特齿轮有限责任公司 | Multi-piston cylinder structure capable of being detached on single side |
-
2022
- 2022-06-10 CN CN202210655141.1A patent/CN115182944A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410321A (en) * | 2011-09-24 | 2012-04-11 | 芜湖众发汽车制动***有限公司 | Two-piston brake master cylinder with stop bowls in two oil storage cups |
| CN203463520U (en) * | 2013-09-29 | 2014-03-05 | 宁波科达制动器制造有限公司 | Brake caliper with split-structure caliper body |
| CN103697092A (en) * | 2013-12-31 | 2014-04-02 | 贵州永兴风能制动器有限责任公司 | High-compressive hydraulic cylinder |
| CN105065518A (en) * | 2015-09-01 | 2015-11-18 | 南车长江车辆有限公司 | Unit braking cylinder with hand braking device |
| CN105927733A (en) * | 2016-06-20 | 2016-09-07 | 陕西法士特汽车传动集团有限责任公司 | Low-gear boosting type auxiliary box air cylinder |
| CN106641040A (en) * | 2016-12-14 | 2017-05-10 | 陕西航空电气有限责任公司 | Intermediate shaft brake piston |
| CN208221576U (en) * | 2018-03-21 | 2018-12-11 | 西安法士特汽车传动有限公司 | A kind of built-up piston assembly |
| CN109296679A (en) * | 2018-11-17 | 2019-02-01 | 湖南运达机电科技股份有限公司 | A kind of disc type braking tong |
| CN111043185A (en) * | 2019-12-17 | 2020-04-21 | 一汽解放汽车有限公司 | Integrated low-delay intermediate shaft brake |
| CN114033849A (en) * | 2021-11-04 | 2022-02-11 | 陕西法士特齿轮有限责任公司 | Multi-piston cylinder structure capable of being detached on single side |
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