CN111114567B - Rubber structure for bullet train windshield and forming method thereof - Google Patents
Rubber structure for bullet train windshield and forming method thereof Download PDFInfo
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- CN111114567B CN111114567B CN201811278722.8A CN201811278722A CN111114567B CN 111114567 B CN111114567 B CN 111114567B CN 201811278722 A CN201811278722 A CN 201811278722A CN 111114567 B CN111114567 B CN 111114567B
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- rubber
- inner cavity
- windshield
- hollow inner
- rubber structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/20—Communication passages between coaches; Adaptation of coach ends therefor
- B61D17/22—Communication passages between coaches; Adaptation of coach ends therefor flexible, e.g. bellows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a rubber structure for a bullet train windshield and a forming method thereof, belonging to the field of windshields at joints between train and vehicles, wherein the rubber structure for the bullet train windshield is integrally annular with a hollow inner cavity, and the cross section of the annular hollow inner cavity positioned at the left side and the right side comprises the following components: the connecting part is used for connecting with a carriage; the supporting surface is provided with two oppositely arranged surfaces and is used for being connected with two ends of the connecting part respectively; a contact surface connected with the support surface, the outer surface of the contact surface being S-shaped; the rubber structure for the bullet train windshield is sealed by the mutual contact of the S-shaped contact surfaces of the two groups of rubber structures, when a vehicle passes through a curve, the contact surfaces are S-shaped, so that the sealing of the contact surfaces cannot be influenced even if lateral movement occurs, and the sealing property of the bullet train windshield can be ensured.
Description
Technical Field
The invention belongs to the field of windshields at joints between train vehicles.
Background
The windshield device at the joint between the carriages of the train is a channel for connecting two trains, and has good longitudinal extensibility, vertical flexibility and transverse flexibility in order to ensure safety so as to meet the requirements of vibration and safe curve passing and turnout passing in the running process of the trains; the windshield on the high-speed motor train unit also meets the following requirements: 1. the air tightness is good, and the sealing of the vehicle is ensured; 2. the air resistance of the windshield is as small as possible so as to ensure that the vehicle joint is smooth and flat and reduce the air resistance of the train during running; 3. has good sound insulation performance so as to improve the comfort in the vehicle.
Chinese patent document CN103863344A discloses an inflatable outer windshield for a motor train unit, which comprises two rubber airbags with opposite annular structures, and the two rubber airbags are relatively tightly attached to seal two carriages; by adopting the scheme, the inflatable part of the rubber airbag can ensure good elasticity, so that complete sealing between two carriages can be realized.
However, when the vehicle passes through a curve, the contact surfaces of the two rubber airbags can not be tightly contacted due to the lateral movement of the carriage; moreover, the rubber air bag is manufactured by adopting manual pasting, the forming and vulcanizing process is ordinary vulcanization, and the pressure is generally 1-2 Kg/cm when the temperature, time and pressure are controlled2The pressure is too low, resulting in low air tightness of the rubber product.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that when a vehicle passes through a curve, the contact surface is not tight due to lateral movement of the contact surface of the inflatable rubber airbag of the outer windshield in the prior art, so that the rubber structure for the windshield of the bullet train is provided.
The invention aims to solve another technical problem of overcoming the defects that the air tightness of a rubber finished product is low and the use requirement of a bullet train windshield cannot be met due to too low pressure adopted during rubber vulcanization in the prior art, thereby providing a method for forming a rubber structure for the bullet train windshield, which can improve the pressure during rubber vulcanization.
The invention provides a rubber structure for a motor car windshield, which is integrally annular with a hollow inner cavity, wherein the cross section of the annular hollow inner cavity positioned at the left side and the right side comprises:
the connecting part is used for connecting with a carriage;
the supporting surface is provided with two oppositely arranged surfaces and is used for being connected with two ends of the connecting part respectively;
a contact surface connected with the support surface, the outer surface of which is S-shaped.
Preferably, the connecting part is provided with a bulge facing to two ends, and the interior of the bulge is a cavity communicated with the hollow inner cavity.
Preferably, the outer surfaces of the support surfaces are planes parallel to each other.
Preferably, the connecting part is provided with an inflation hole communicated with the hollow inner cavity.
The invention provides a method for forming a rubber structure for a motor car windshield, which comprises the following steps:
putting ring rubber prefabricated into a hollow inner cavity into a mould;
inflating the hollow interior cavity in the mold;
heating the mold to vulcanize the rubber.
Preferably, the ring-shaped rubber prefabricated with the hollow inner cavity is made of a whole canvas frame material.
Preferably, in the step of inflating the hollow cavity in the mold, the compressed air injected is normal temperature air.
Preferably, in the step of inflating the hollow inner cavity in the die, the air pressure for inflation is 6-8 Kg/cm2。
Preferably, the pressure of the air for flushing is 6.5Kg/cm2。
Preferably, the inner wall of the mold is a structure matched with the outer wall of the rubber structure for the bullet train windshield in any one of the above aspects.
The technical scheme provided by the invention has the following advantages:
1. the rubber structure for the motor car windshield provided by the invention is sealed by mutual contact of the S-shaped contact surfaces of the two groups of rubber structures, when a vehicle passes through a curve, the contact surfaces are S-shaped, so that the sealing of the contact surfaces cannot be influenced even if lateral movement occurs, and the sealing property of the motor car windshield can be ensured.
2. When the rubber structure for the windshield of the bullet train is installed, the hollow inner cavity of the rubber structure is firstly deflated, then the bulges at the two ends of the connecting part are inserted into the carriage in a buckling connection mode, and then the hollow inner cavity is inflated, so that the rubber structure is firmly clamped on the carriage.
3. According to the rubber structure for the bullet train windshield, the outer surface of the supporting surface is used for contacting with the outside and is made into the mutually parallel planes, so that the air resistance of the windshield can be effectively reduced, the smooth and flat connection part of a train is ensured, and the air resistance of the train in running is reduced
4. According to the rubber structure for the bullet train windshield, the inflation hole is used for inflating or deflating the hollow inner cavity of the rubber structure after the rubber structure is installed on a train, so that the rubber structure is convenient to disassemble and assemble, and good elasticity of the rubber structure is kept.
5. The forming method of the rubber structure for the bullet train windshield is completely different from the existing air bag vulcanization method, the rubber structure is applied to a large-scale die-pressed product, and the hollow inner cavity of the rubber structure is inflated in a die during vulcanization, so that the pressure of rubber vulcanization is improved, the material airtightness of rubber is higher, the external pressure which can be borne by the rubber product is higher, the sealing performance is higher, and the use requirement of the bullet train windshield can be met.
6. Compared with the rubber prepared by splicing in the prior art, the forming method of the rubber structure for the bullet train windshield provided by the invention has the advantages that the whole canvas is adopted as the framework material during rubber prefabrication, higher compression resistance can be provided, the pressure requirement during inflation is met, and the quality of the finished rubber product is improved.
7. The forming method of the rubber structure for the motor car windshield provided by the invention adopts the mode of injecting normal temperature air when the hollow inner cavity of the mold is inflated, and is convenient to obtain during production.
8. The invention provides a method for forming a rubber structure for a motor car windshield, which is characterized in that the air pressure for punching a hollow inner cavity of the rubber structure is 6-8 Kg/cm2Compared with 1-2 Kg/cm adopted by the existing capsule vulcanization method2The air pressure of inflating of this application is obvious increase, consequently can by a wide margin improve the quality of rubber structure, satisfies the application of motor car windscreen.
9. The invention provides a method for forming a rubber structure for a bullet train windshield, which is characterized in that the air pressure for punching a hollow inner cavity of the rubber structure is 6.5Kg/cm2The pressure can meet the condition of obtaining a qualified rubber structure, and is more convenient to realize in production.
10. According to the forming method of the rubber structure for the bullet train windshield, the inner wall of the adopted mold is a structure matched with the outer wall of the rubber structure for the bullet train windshield in any scheme, so that the rubber structure has any advantage of the rubber structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a rubber structure provided by the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
FIG. 3 is a schematic cross-sectional view of the rear side of the rubber structure mounted to the vehicle compartment.
Description of reference numerals:
1. rubber; 101. a hollow interior cavity; 102. a connecting portion; 103. a support surface; 104. a contact surface; 105. a protrusion; 2. a carriage; 201. an inflation valve; 3. and (5) buckling.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a rubber structure for a windshield of a motor vehicle, which has an annular shape having a hollow cavity 101 as shown in fig. 1, wherein the hollow cavity 101 is used for maintaining good elasticity of the rubber 1 by inflation, and the cross section of the annular hollow cavity 101 at the left and right sides includes: a connecting part 102, a supporting surface 103 and a contact surface 104, and the cross section of the annular hollow cavity 101 at the upper side and the lower side is a conventional rectangular structure.
The connecting part 102 is used for connecting with the carriage 2, a bulge 105 facing to two ends is arranged on the connecting part 102, and the interior of the bulge 105 is a cavity communicated with the hollow inner cavity 101.
The supporting surface 103 has two opposite surfaces for connecting to two ends of the connecting portion 102, and the outer surfaces of the supporting surface 103 are parallel planes.
The contact surface 104 is connected to the support surface 103 and has an S-shaped outer surface.
The connecting portion 102 is provided with an inflation hole communicated with the hollow inner cavity 101.
The use process comprises the following steps:
when the rubber 1 is connected to the car 2, as shown in fig. 3, two sets of the rubber 1 shown in fig. 1 are respectively connected to the opposite end surfaces of two opposite cars 2, so that the contact surfaces 104 of the two sets of the rubber 1 are opposite; each group of rubber 1 is clamped on the carriage 2 through the buckle 3, specifically, the hollow inner cavity of the rubber 1 is deflated through the inflation hole to reduce the volume of the rubber 1, then the bulges 105 at the two ends of the connecting part are inserted into the arc-shaped groove of the buckle 3, and then the hollow inner cavity is inflated through the inflation valve 201 which is arranged on the carriage 2 and communicated with the inflation hole, so that the rubber 1 can be clamped and fixed on the carriage 2 through the buckle 3; in the running process of the vehicle, because the contact surfaces 104 of the two groups of rubbers 1 are in S-shaped structures, when the vehicle passes through a curve, the contact surfaces can only partially deform at most, and the contact surfaces 104 of the two groups of rubbers 1 cannot be separated, so that the condition of poor contact sealing can be avoided.
Example 2
The embodiment provides a method for forming a rubber structure for a windshield of a motor car, which comprises the following steps:
step S1, the ring-shaped rubber 1 prefabricated to have the hollow cavity 101 is put into a mold.
Step S2, inflating the hollow cavity 101 in the mold.
And step S3, heating the mold to vulcanize the rubber 1.
In the step S1, the method for prefabricating the ring rubber 1 with the hollow cavity 101 can be completed by the conventional method, and during manufacturing, the framework material of the ring rubber 1 is a whole canvas, the model of the canvas is EP or EE canvas, and the width of the canvas needs to be 2.6m or more, so as to meet the requirement of the perimeter of the end face of the compartment of the bullet train.
In the step S2, in the process of inflating the hollow cavity 101 in the mold, the compressed air rushing toward the hollow cavity 101 through the inflation hole of the rubber 1 is normal temperature air, and the rushing air pressure is 6-8 Kg/cm2Preferably 6.5Kg/cm2。
The inner wall of the mold is matched with the outer wall of the rubber structure for the bullet train windshield in the embodiment 1, so that after compressed air is injected into the hollow inner cavity 101 facing the rubber 1, the rubber 1 is attached to the inner wall of the mold, and the rubber 1 is processed and molded into the structure in the embodiment 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A rubber structure for a windshield of a motor car, which is in an annular shape with a hollow inner cavity (101), characterized in that the cross section of the annular hollow inner cavity (101) positioned at the left side and the right side comprises:
the connecting part (102) is used for being connected with a carriage (2), an inflation hole communicated with the hollow inner cavity (101) is formed in the connecting part (102), the connecting part (102) is provided with bulges (105) facing to two ends, and cavities communicated with the hollow inner cavity (101) are formed in the bulges;
a support surface (103) having two surfaces disposed opposite to each other and connected to both ends of the connection portion (102);
a contact surface (104) connected to the support surface (103), the outer surface of which is S-shaped.
2. A rubber structure according to claim 1, characterized in that the outer surfaces of the supporting surfaces (103) are planes parallel to each other.
3. A method for forming a rubber structure for a windshield of a motor car is characterized by comprising the following steps:
placing an annular rubber (1) prefabricated to have a hollow inner cavity (101) into a mold, wherein the inner wall of the mold is a structure matched with the outer wall of the rubber structure for the bullet train windshield, which is disclosed by the claim 1 or the claim 2;
inflating the hollow interior (101) in the mold;
heating the mold to vulcanize the rubber (1).
4. The molding method according to claim 3, wherein the ring-shaped rubber (1) having the hollow inner cavity (101) is prepared by using a full-width canvas as a framework material.
5. The molding method according to claim 3, wherein in the step of inflating the hollow cavity (101) in the mold, the compressed air to be injected is normal temperature air.
6. The molding method according to claim 3, characterized in that in the step of inflating the hollow inner cavity (101) in the mold, the gas pressure rushing in is 6-8 Kg/cm.
7. The molding method according to claim 6, characterized in that the gas pressure of the punch-in is 6.5 Kg/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278722.8A CN111114567B (en) | 2018-10-30 | 2018-10-30 | Rubber structure for bullet train windshield and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278722.8A CN111114567B (en) | 2018-10-30 | 2018-10-30 | Rubber structure for bullet train windshield and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111114567A CN111114567A (en) | 2020-05-08 |
| CN111114567B true CN111114567B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811278722.8A Active CN111114567B (en) | 2018-10-30 | 2018-10-30 | Rubber structure for bullet train windshield and forming method thereof |
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| Country | Link |
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| CN (1) | CN111114567B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112298235B (en) * | 2020-11-13 | 2022-02-25 | 中车青岛四方机车车辆股份有限公司 | U-shaped capsule concave-convex coupling type outer windshield and railway vehicle |
| CN114834493A (en) * | 2022-05-30 | 2022-08-02 | 滁州市永通交通设备有限公司 | Rubber windshield convenient to install and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6215163A (en) * | 1985-07-15 | 1987-01-23 | 株式会社エイチ・エス・エス・テイ | Car connecting section structure |
| JPH07300070A (en) * | 1994-05-01 | 1995-11-14 | Bridgestone Corp | Vestibule diaphragm structure for reducing noise from rolling stock body and resistance during running |
| CN2408000Y (en) * | 1999-12-30 | 2000-11-29 | 大钧印企业股份有限公司 | Windscreen of wagon |
| CN1282659A (en) * | 2000-08-04 | 2001-02-07 | 钟爱民 | Technology for making air bag and aerated or water-filled rubber protector for ship side |
| JP4815165B2 (en) * | 2005-08-23 | 2011-11-16 | 東海旅客鉄道株式会社 | Exterior hood structure for vehicle connection |
| CN103863344A (en) * | 2014-03-29 | 2014-06-18 | 张建华 | Inflatable type outer windscreen of motor train unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633799Y2 (en) * | 1977-09-14 | 1981-08-10 |
-
2018
- 2018-10-30 CN CN201811278722.8A patent/CN111114567B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6215163A (en) * | 1985-07-15 | 1987-01-23 | 株式会社エイチ・エス・エス・テイ | Car connecting section structure |
| JPH07300070A (en) * | 1994-05-01 | 1995-11-14 | Bridgestone Corp | Vestibule diaphragm structure for reducing noise from rolling stock body and resistance during running |
| CN2408000Y (en) * | 1999-12-30 | 2000-11-29 | 大钧印企业股份有限公司 | Windscreen of wagon |
| CN1282659A (en) * | 2000-08-04 | 2001-02-07 | 钟爱民 | Technology for making air bag and aerated or water-filled rubber protector for ship side |
| JP4815165B2 (en) * | 2005-08-23 | 2011-11-16 | 東海旅客鉄道株式会社 | Exterior hood structure for vehicle connection |
| CN103863344A (en) * | 2014-03-29 | 2014-06-18 | 张建华 | Inflatable type outer windscreen of motor train unit |
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| Publication number | Publication date |
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| CN111114567A (en) | 2020-05-08 |
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Denomination of invention: A rubber structure for motor car windshield and its molding method Effective date of registration: 20221222 Granted publication date: 20210720 Pledgee: Hengshui Bank Co.,Ltd. Fudong Sub branch Pledgor: HEBEI HAODE RUBBER & PLASTICS Co.,Ltd. Registration number: Y2022980028481 |