CN112797106A - Brake damping device - Google Patents
Brake damping device Download PDFInfo
- Publication number
- CN112797106A CN112797106A CN202110117632.6A CN202110117632A CN112797106A CN 112797106 A CN112797106 A CN 112797106A CN 202110117632 A CN202110117632 A CN 202110117632A CN 112797106 A CN112797106 A CN 112797106A
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- CN
- China
- Prior art keywords
- section
- brake
- housing
- way
- shell
- 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
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
Abstract
The invention discloses a brake damping device which comprises a shell and a one-way damping core. The shell is used for being fixed on a brake wheel oil cylinder seat, a first connector and a second connector are arranged on the surface of the shell, and a connecting oil path for connecting the first connector and the second connector is arranged in the shell; the one-way damping core is arranged in the connecting oil way and comprises two columns, a one-way damping oil way is arranged at the contact surface of the two columns, and the one-way damping oil way is of a Tesla valve structure. Compared with the prior art, the one-way damping core is arranged in the connecting oil way, so that the technical effect of preventing the pressure from being increased too fast and not influencing the pressure relief is achieved.
Description
Technical Field
The invention relates to the technical field of aircraft brake systems, in particular to a brake damping device.
Background
The braking speed of the airplane during landing is as high as 200 km/h-300 km/h, the braking wheels on the undercarriage are responsible for decelerating the airplane, and the braking wheels are matched with the tubeless tires to brake under the action of a braking system. When the pilot steps on the brake, the brake system outputs the brake pressure corresponding to the brake pedal instruction to the brake wheels. For a brake wheel adopting a carbon brake disc, a large braking torque is generated at the initial moment when the braking pressure acts on the brake wheel, and the braking torque is called as 'rush peak'. Large braking moments can cause locking of the braking wheels, structural damage and discomfort to the passengers, affecting flight safety, structural life and ride comfort.
To solve this problem, a damping hole 2 (as shown in fig. 1) is usually provided in an oil passage of the conventional brake wheel cylinder block 1 to prevent an excessive pressure increase at the initial stage of braking, thereby suppressing a spike. However, damping hole 2 can cause when the pine brakes slow step-down when restraining to rush the peak, and some circumstances need step-down fast, when braking system detects the brake wheel and is about to lock, need quick pressure release in order to reduce brake moment, prevent to skid because of the brake wheel, step-down untimely lead to the wheel locking to take off child, influence flight safety.
Disclosure of Invention
The invention aims to provide a brake damping device, which is used for solving the technical problems in the prior art and achieving the technical effects of preventing too fast boosting and not influencing pressure relief.
In order to achieve the purpose, the invention provides the following scheme:
the invention discloses a brake damping device, comprising:
the surface of the shell is provided with a first interface and a second interface, and a connecting oil path for connecting the first interface and the second interface is arranged in the shell;
the one-way damping core is arranged in the connecting oil way and comprises two columns, a one-way damping oil way is arranged at the contact surface of the two columns, and the one-way damping oil way is of a Tesla valve structure.
Preferably, the cylinder is of a semi-cylinder structure, and the whole unidirectional damping core is of a cylinder structure.
Preferably, the connecting oil path is L-shaped and includes a first section of oil path and a second section of oil path, and the first section of oil path and the second section of oil path are perpendicular to each other and are communicated with each other.
Preferably, the casing is L-shaped, and includes first section casing, second section casing and jam, first section casing with second section casing mutually perpendicular and fixed connection, the jam detachable install in keeping away from of first section casing the one end of first interface, first section oil circuit is located the center of first section casing, one-way damping core is located in the first section oil circuit, second section oil circuit is located the center of second section casing, first interface is located keeping away from of first section casing the one end of second section casing, the second interface is located the one end of keeping away from of second section casing.
Preferably, the outer wall of the plug is provided with a first annular groove, the first annular groove is internally provided with a plug sealing ring, and the plug sealing ring is used for sealing a gap between the plug and the first section of shell.
Preferably, the second section of shell is used for being inserted into a brake wheel cylinder base, and a mounting hole corresponding to the second section of shell is formed in the brake wheel cylinder base.
Preferably, the second section of the shell is fixedly connected with the brake wheel cylinder seat through a screw.
Preferably, a second annular groove is formed in the outer wall of the second section of shell, a joint sealing ring is installed in the second annular groove, and the joint sealing ring is used for sealing a gap between the second section of shell and the brake wheel oil cylinder seat.
Compared with the prior art, the invention has the following technical effects:
the brake damping device for preventing the over-fast boosting and simultaneously not influencing the pressure relief has the advantages of ingenious design and installation, compact and reasonable structure, no movable part, convenient use and maintenance, low manufacturing cost, capability of inhibiting the peak rush at the initial stage of braking, capability of reducing the brake vibration, capability of quickly relieving the pressure, and suitability for various types of brake wheel reconstruction and newly-developed brake wheels used by the existing airplanes. The brake damping device of the present invention can be either a single valve or integrated into the brake wheel cylinder block.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a conventional brake wheel cylinder block;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic diagram illustrating a positional relationship between a brake damping device and a cylinder seat of a brake wheel according to the present embodiment;
FIG. 4 is a schematic view illustrating a flow direction of hydraulic oil during braking of the brake damping device according to the present embodiment;
FIG. 5 is a schematic view illustrating a flow direction of hydraulic oil during releasing of the brake damping device according to the embodiment;
FIG. 6 is a schematic view of the internal structure of the brake damping device according to the present embodiment;
FIG. 7 is a schematic structural view of the column of the present embodiment;
description of reference numerals: 1-brake wheel cylinder seat; 2-a damping hole; 3-a one-way damping core; 4-a shell; 5-blocking the sealing ring; 6-blocking; 7-joint sealing ring; 8-a brake damping device; 9-screw.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention aims to provide a brake damping device, which achieves the technical effects of preventing too fast pressure rise and not influencing pressure relief by arranging a one-way damping core in a connecting oil way.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 2-7, the present embodiment provides a brake damping device 8 including a housing 4 and a unidirectional damping core 3. The surface of casing 4 is equipped with first interface and second interface, is equipped with the connection oil circuit of connecting first interface and second interface in the casing 4. When the vehicle is braked, the flow direction of hydraulic oil in the shell 4 is that the hydraulic oil flows from the first interface to the second interface; when the brake is released, the flow direction of the hydraulic oil in the shell 4 is the flow direction of the second interface to the first interface. In the connection oil circuit was located to one-way damping core 3, one-way damping core 3 included two cylinders, and the contact surface department of two cylinders was equipped with one-way damping oil circuit, and one-way damping oil circuit is the tesla valve structure, realizes the required one-way damping of brake through the tesla valve structure.
For the brake damping device 8, when braking, hydraulic oil enters the shell 4 from the first interface and flows out from the second interface after passing through the one-way damping core 3 along the forward direction (as shown in fig. 4), the damping is large, and the too fast pressure rise in the initial stage of braking is prevented, so that the peak impact is inhibited; when the brake is released, hydraulic oil flows into the shell 4 from the second interface and flows out from the first interface after passing through the one-way damping core 3 in the reverse direction (as shown in fig. 5), the damping is small, the pressure can be quickly released, and the situation that the brake wheel slips to lock and release the tire due to untimely pressure release is avoided.
In this embodiment, the cylinder is a semi-cylinder structure, and the unidirectional damping core 3 is a cylinder structure as a whole, and those skilled in the art can select the unidirectional damping core 3 in other shapes as required, as long as the unidirectional damping oil path of the tesla valve structure is arranged in the unidirectional damping core.
In this embodiment, the connection oil path is specifically L-shaped, and includes a first section oil path and a second section oil path, and the first section oil path and the second section oil path are perpendicular to each other and are communicated.
Further, casing 4 is L shape in this embodiment, including first section casing, second section casing and jam 6, first section casing and second section casing mutually perpendicular and fixed connection. The plug 6 is detachably mounted on the end of the first section of the shell far away from the first interface, and is preferably in threaded connection. The first section of oil way is positioned in the center of the first section of shell, the one-way damping core 3 is arranged in the first section of oil way, and the second section of oil way is positioned in the center of the second section of shell. The first interface is located at one end, far away from the second section of shell, of the first section of shell, and the second interface is located at one end, far away from the first section of shell, of the second section of shell. The plug 6 is detachably arranged at one end of the first section shell, so that the one-way damping core 3 can be conveniently put in and taken out. It should be noted that after the plug 6 is installed, a certain gap should be left between the plug 6 and the one-way damping core 3 to facilitate the flow of hydraulic oil.
In order to improve the sealing performance between the plug 6 and the shell 4, a first annular groove is formed in the outer wall of the plug 6 in the embodiment, a plug sealing ring 5 is installed in the first annular groove, and the plug sealing ring 5 is used for sealing a gap between the plug 6 and the first section of the shell.
In this embodiment, the second section of shell is used for inserting into brake wheel cylinder block 1, and brake wheel cylinder block 1 is equipped with the mounting hole that corresponds with the second section of shell. The second section of the shell is fixedly connected with the brake wheel oil cylinder seat 1 through a screw 9.
In order to improve the sealing performance between the second section of shell and the brake wheel cylinder seat 1, a second annular groove is formed in the outer wall of the second section of shell, a joint sealing ring 7 is installed in the second annular groove, and the joint sealing ring 7 is used for sealing a gap between the second section of shell and the brake wheel cylinder seat 1.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A brake damping device, comprising:
the surface of the shell is provided with a first interface and a second interface, and a connecting oil path for connecting the first interface and the second interface is arranged in the shell;
the one-way damping core is arranged in the connecting oil way and comprises two columns, a one-way damping oil way is arranged at the contact surface of the two columns, and the one-way damping oil way is of a Tesla valve structure.
2. The brake damping device of claim 1, wherein the cylinder is a semi-cylindrical structure and the unidirectional damping core is a cylindrical structure throughout.
3. The brake damping device of claim 1, wherein the connecting oil path is L-shaped and includes a first section oil path and a second section oil path, and the first section oil path and the second section oil path are perpendicular to each other and communicate with each other.
4. The brake damping device of claim 3, wherein the housing is L-shaped and includes a first section housing, a second section housing, and a plug, the first section housing and the second section housing are perpendicular to each other and fixedly connected, the plug is detachably mounted on one end of the first section housing away from the first port, the first section oil path is located in the center of the first section housing, the one-way damping core is disposed in the first section oil path, the second section oil path is located in the center of the second section housing, the first port is located at one end of the first section housing away from the second section housing, and the second port is located at one end of the second section housing away from the first section housing.
5. The brake damping device of claim 4, wherein a first annular groove is formed in an outer wall of the plug, and a plug sealing ring is installed in the first annular groove and used for sealing a gap between the plug and the first section of the shell.
6. The brake damping device of claim 4, wherein the second section of housing is configured to be inserted into a brake wheel cylinder block, and a mounting hole corresponding to the second section of housing is formed in the brake wheel cylinder block.
7. The brake damping device of claim 6, wherein the second section of the housing is fixedly attached to the brake wheel cylinder block by screws.
8. The brake damping device of claim 7, wherein a second annular groove is formed in an outer wall of the second section of the housing, and a joint sealing ring is installed in the second annular groove and used for sealing a gap between the second section of the housing and the brake wheel cylinder seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110117632.6A CN112797106A (en) | 2021-01-28 | 2021-01-28 | Brake damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110117632.6A CN112797106A (en) | 2021-01-28 | 2021-01-28 | Brake damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112797106A true CN112797106A (en) | 2021-05-14 |
Family
ID=75812435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110117632.6A Pending CN112797106A (en) | 2021-01-28 | 2021-01-28 | Brake damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112797106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550998A (en) * | 2021-06-03 | 2021-10-26 | 湖南大学 | Energy consumption liquid damper based on Tesla valve structure |
| CN113932913A (en) * | 2021-09-02 | 2022-01-14 | 东风汽车集团股份有限公司 | Mute auxiliary testing device and door closing sound quality testing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010095023A (en) * | 2008-10-14 | 2010-04-30 | Honda Motor Co Ltd | Vehicular brake device |
| CN203892305U (en) * | 2014-03-07 | 2014-10-22 | 中联重科股份有限公司 | Damping plug and hydraulic component with damping plug |
| CN204284291U (en) * | 2014-10-16 | 2015-04-22 | 伊卡路斯(苏州)车辆系统有限公司 | The pivotal hydraulic bjuffer of vehicle safety is realized based on articulated system |
| CN104564895A (en) * | 2013-10-24 | 2015-04-29 | 比亚迪股份有限公司 | Single-acting plunger cylinder and forklift |
| CN112228596A (en) * | 2020-11-06 | 2021-01-15 | 刘西振 | One-way valve with one-way fluid acceleration function |
-
2021
- 2021-01-28 CN CN202110117632.6A patent/CN112797106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010095023A (en) * | 2008-10-14 | 2010-04-30 | Honda Motor Co Ltd | Vehicular brake device |
| CN104564895A (en) * | 2013-10-24 | 2015-04-29 | 比亚迪股份有限公司 | Single-acting plunger cylinder and forklift |
| CN203892305U (en) * | 2014-03-07 | 2014-10-22 | 中联重科股份有限公司 | Damping plug and hydraulic component with damping plug |
| CN204284291U (en) * | 2014-10-16 | 2015-04-22 | 伊卡路斯(苏州)车辆系统有限公司 | The pivotal hydraulic bjuffer of vehicle safety is realized based on articulated system |
| CN112228596A (en) * | 2020-11-06 | 2021-01-15 | 刘西振 | One-way valve with one-way fluid acceleration function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550998A (en) * | 2021-06-03 | 2021-10-26 | 湖南大学 | Energy consumption liquid damper based on Tesla valve structure |
| CN113932913A (en) * | 2021-09-02 | 2022-01-14 | 东风汽车集团股份有限公司 | Mute auxiliary testing device and door closing sound quality testing method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210514 |
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| RJ01 | Rejection of invention patent application after publication |