CN116872905A - Composite material vacuum cylinder assembly - Google Patents
Composite material vacuum cylinder assembly Download PDFInfo
- Publication number
- CN116872905A CN116872905A CN202310818504.3A CN202310818504A CN116872905A CN 116872905 A CN116872905 A CN 116872905A CN 202310818504 A CN202310818504 A CN 202310818504A CN 116872905 A CN116872905 A CN 116872905A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- end cover
- cylinder
- vacuum cylinder
- cartridge assembly
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 17
- 229920010540 PA6 GF30 Polymers 0.000 claims abstract description 11
- 229920006920 PA6-GF30 Polymers 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 9
- 230000006978 adaptation Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/06—Applications or arrangements of reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a composite material vacuum cylinder assembly, and relates to automobile parts. The vacuum cylinder assembly comprises a vacuum cylinder main body, wherein the vacuum cylinder main body comprises an end cover and a cylinder body, one end of the cylinder body with an opening is connected with the end cover, the cylinder body and the end cover are made of PA6-GF30 materials, and the wall thickness of the cylinder body and the end cover is 2-4.5 mm; the pipe joint is arranged on the end cover; and the connecting component is arranged on the cylinder body and is used for connecting the vacuum cylinder body with the mounting component. The PA6-GF30 material adopted by the vacuum cylinder main body has the characteristics of high modulus, high strength and low density, can complete the thin-wall structural design, and can adjust the wall thickness of the vacuum cylinder with different capacities according to different requirements on internal compression resistance. Therefore, the design can reduce the weight and manufacturing cost of the vacuum cylinder while meeting the requirements of strength and rigidity.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to a composite material vacuum cylinder assembly.
Background
At present, the main flow technical scheme of the vacuum cylinder is that the cylinder body and the bracket are made of low carbon steel, so that the requirements on part modes and strength can be met, but the weight is generally high, and the weight is about 3.6kg by taking a main flow of a vacuum cylinder with the volume of 5L as an example; the PC material with light weight is also used as the cylinder body, and the cost of parts is greatly increased, generally 1.5-2 times of the cost of the steel vacuum cylinder because the modulus of the PC material is lower to meet the requirements of performance and the wall thickness is larger.
Therefore, the existing vacuum cylinder has the problem of high weight or high cost.
Disclosure of Invention
Aiming at the defects in the prior art, the invention solves the technical problems as follows: how to reduce the weight and manufacturing cost of the vacuum cylinder.
In order to achieve the above object, the present invention provides a composite vacuum cylinder assembly, comprising:
the vacuum cylinder main body comprises an end cover and a cylinder body, wherein one end of the cylinder body with an opening is connected with the end cover, the cylinder body and the end cover are made of PA6-GF30 materials, and the wall thickness of the cylinder body and the end cover is 2-4.5 mm;
the pipe joint is arranged on the end cover;
and the connecting component is arranged on the cylinder body and is used for connecting the vacuum cylinder body with the mounting component.
Based on the technology, the bearable pressure of the vacuum cylinder main body is negative pressure, and the minimum value is 0.1MPa.
Based on the technology, the cylinder body is of a cylindrical structure, and the end covers and the closed ends of the cylinder body are of spherical structures.
On the basis of the technology, the end cover and the cylinder are connected through friction welding;
or the end cover and the cylinder are adhered by structural adhesive.
On the basis of the technology, the connecting component is a connecting bracket.
On the basis of the technology, the connecting bracket is made of metal materials.
On the basis of the technology, the connecting support is adhered with the cylinder body through structural adhesive.
Based on the technology, the connecting bracket is made of PA6-GF30 material.
On the basis of the technology, the connecting bracket is connected with the cylinder body through friction welding.
On the basis of the technology, the connecting component is a cylinder embedded bolt.
Compared with the prior art, the invention has the advantages that:
the PA6-GF30 material adopted by the vacuum cylinder main body has the characteristics of high modulus, high strength and low density, can complete the thin-wall structural design, and can adjust the wall thickness of the vacuum cylinder with different capacities according to different requirements on internal compression resistance. Therefore, the design can reduce the weight and manufacturing cost of the vacuum cylinder while meeting the requirements of strength and rigidity.
Drawings
FIG. 1 is a schematic structural view of a composite vacuum cartridge assembly according to an embodiment of the present invention;
in the figure: 1-end cover, 2-barrel, 3-coupling, 4-coupling assembling.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, a composite vacuum cartridge assembly in an embodiment of the invention comprises:
the vacuum cylinder body comprises an end cover (1) and a cylinder body (2), wherein one end of the cylinder body (2) with an opening is connected with the end cover (1), the cylinder body (2) and the end cover (1) are made of PA6-GF30 materials, and the wall thickness of the cylinder body and the end cover is 2-4.5 mm;
a pipe joint (3) which is arranged on the end cover (1);
and the connecting component (4) is arranged on the cylinder body (2) and is used for connecting the vacuum cylinder body with the mounting component.
Therefore, the PA6-GF30 material adopted by the vacuum cylinder main body has the characteristics of high modulus, high strength and low density, can complete the thin-wall structure design, and can adjust the wall thickness of the vacuum cylinder with different capacities according to different internal compression resistance requirements. Therefore, the design can reduce the weight and manufacturing cost of the vacuum cylinder while meeting the requirements of strength and rigidity.
Preferably, the sustainable pressure of the vacuum cylinder body is negative pressure, and the minimum value is 0.1MPa.
The design has the advantages that: the whole system can not exceed 0.1MPa during operation, so the design bearing of the vacuum cylinder is higher than 0.1MPa to ensure that the requirement can be met, and therefore, the requirement is met no matter how the volume or the wall thickness of the vacuum cylinder is designed.
Preferably, the cylinder body (2) is of a cylindrical structure, and the end caps (1) and the closed ends of the cylinder body (2) are of spherical structures.
The design has the advantages that: the structure of this design can guarantee that each part atress in the vacuum section of thick bamboo is even, because of the thin wall design that its adopted, in order to avoid because of its inside somewhere can bear the atress and not reach standard and take place the accident.
Preferably, the end cover (1) and the cylinder body (2) are connected through friction welding; or, the end cover (1) and the cylinder body (2) are adhered by structural adhesive.
The design has the advantages that: the cylinder body 2 and the end cover 1 are connected in a friction welding mode, and compared with arc welding of metal materials, the electric arc welding device is more environment-friendly, higher in production efficiency and lower in cost; similarly, the connection mode capable of achieving the effect is also bonding through structural adhesive.
Preferably, the connecting component (4) is a connecting bracket.
The design has the advantages that: in order to enable the vacuum cylinder main body to be connected with the mounting part, the connection part of the connecting bracket and the vacuum cylinder main body is designed into a flanging structure, so that the bonding area is increased, and the connection strength of the bracket and the vacuum cylinder main body is ensured.
Preferably, the connecting bracket is made of a metal material.
The design has the advantages that: the material of the connecting bracket is selected from metal materials, so that the strength of the connecting bracket can be improved, and the vacuum cylinder is prevented from falling off from the mounting part due to the breakage of the connecting bracket.
Further, the connecting bracket is adhered with the cylinder body (2) through structural adhesive.
The design has the advantages that: when the connecting bracket is made of metal, the vacuum cylinder is made of a plastic-based composite material, and the dissimilar materials can be bonded and connected through the double-component structural adhesive, wherein the adhesive is high-performance acrylic ester double-component structural adhesive, and the shearing strength and the tensile strength are about 20 MPa.
Preferably, the connecting bracket is made of PA6-GF30 material.
The design has the advantages that: the PA6-GF30 material is selected as the material of the connecting bracket, so that the strength of the connecting bracket can be improved, and the vacuum cylinder is prevented from falling off from the mounting part due to the breakage of the connecting bracket.
Further, the connecting bracket is connected with the cylinder body (2) through friction welding.
The design has the advantages that: when the connecting bracket is made of a plastic-based composite material, the vacuum cylinder is made of the plastic-based composite material, and the same materials can be connected through friction welding or through structural adhesive bonding.
Preferably, the connecting component (4) is a cylinder embedded bolt.
The design has the advantages that: and the connecting assembly 4 is selected, and the connecting bracket can be replaced by an embedded bolt, so that the vacuum cylinder is directly fixed on the mounting part through the embedded bolt.
In order to prove the effectiveness of the scheme of the invention, a negative pressure instability and vibration endurance test of the vacuum cylinder is prepared, and the specific test is as follows:
1) Negative pressure instability calculation is synchronously carried out on vacuum cylinders with different volumes and thicknesses
The critical state of rigidity is found when the wall thickness of the cylinder body with the volume of 5L is 2mm, the instability deformation possibly occurs, and for verification theoretical analysis, sample pieces with the volume of 2mm and 3mm are developed for trial production and verification; the 2mm cylinder body is unstable and deformed under the condition of 0.1MPa negative pressure; consistent with theoretical analysis; the 3mm cylinder was free of problems as shown in Table 1.
TABLE 1
2) Vibration endurance test basis
The test is carried out according to the requirement of the test task list SY23041405, and the vibration test conditions are shown in Table 2:
TABLE 2
3) Test subjects
For test sample information see table 3:
TABLE 3 Table 3
4) 4.1 test content
And fixing the tested piece on the electromagnetic vibration table through a tool, and carrying out vibration test according to the requirement of a test task list.
4.2 test apparatus
ES-50LS3-445 electromagnetic vibration test bed
5) Test results
When the wall thickness of the vacuum cylinder is 2mm and 3mm, the requirements of vibration durability can be met, and if the wall thickness is required to be increased to 4.5mm, the cost is only required to be increased. The test results are shown in Table 4:
TABLE 4 Table 4
The invention is not limited to the embodiments described above, but a number of modifications and adaptations can be made by a person skilled in the art without departing from the principle of the invention, which modifications and adaptations are also considered to be within the scope of the invention. What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (10)
1. A composite vacuum cartridge assembly, comprising:
the vacuum cylinder body comprises an end cover (1) and a cylinder body (2), wherein one end of the cylinder body (2) with an opening is connected with the end cover (1), the cylinder body (2) and the end cover (1) are made of PA6-GF30 materials, and the wall thickness of the cylinder body and the end cover is 2-4.5 mm;
a pipe joint (3) which is arranged on the end cover (1);
and the connecting component (4) is arranged on the cylinder body (2) and is used for connecting the vacuum cylinder body with the mounting component.
2. The composite vacuum cartridge assembly of claim 1, wherein: the bearable pressure of the vacuum cylinder main body is negative pressure, and the minimum value is 0.1MPa.
3. The composite vacuum cartridge assembly of claim 1, wherein: the cylinder body (2) is of a cylindrical structure, and the end covers (1) and the closed ends of the cylinder body (2) are of spherical structures.
4. The composite vacuum cartridge assembly of claim 1, wherein: the end cover (1) is connected with the cylinder body (2) through friction welding;
or, the end cover (1) and the cylinder body (2) are adhered by structural adhesive.
5. The composite vacuum cartridge assembly of claim 1, wherein: the connecting component (4) is a connecting bracket.
6. The composite vacuum cartridge assembly of claim 5, wherein: the connecting bracket is made of metal materials.
7. The composite vacuum cartridge assembly of claim 6, wherein: the connecting support is adhered to the cylinder body (2) through structural adhesive.
8. The composite vacuum cartridge assembly of claim 5, wherein: the connecting bracket is made of PA6-GF30 material.
9. The composite vacuum cartridge assembly of claim 8, wherein: the connecting bracket is connected with the cylinder body (2) through friction welding.
10. The composite vacuum cartridge assembly of claim 1, wherein: the connecting component (4) is a cylinder embedded bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310818504.3A CN116872905A (en) | 2023-07-05 | 2023-07-05 | Composite material vacuum cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310818504.3A CN116872905A (en) | 2023-07-05 | 2023-07-05 | Composite material vacuum cylinder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116872905A true CN116872905A (en) | 2023-10-13 |
Family
ID=88270812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310818504.3A Pending CN116872905A (en) | 2023-07-05 | 2023-07-05 | Composite material vacuum cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116872905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220142433A1 (en) * | 2020-11-10 | 2022-05-12 | Techtronic Cordless Gp | Sweeping assembly, cleaning appliance, and method for cleaning appliance |
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|---|---|---|---|---|
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| CN204355039U (en) * | 2014-12-30 | 2015-05-27 | 安徽江淮汽车股份有限公司 | A kind of vacuum cylinder mounting structure and a kind of automobile |
| CN205327047U (en) * | 2016-02-03 | 2016-06-22 | 东风神宇车辆有限公司 | Novel hydraulic braking system |
| CN206202287U (en) * | 2016-11-16 | 2017-05-31 | 郑州日产汽车有限公司 | Push-in vacuum tank |
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2023
- 2023-07-05 CN CN202310818504.3A patent/CN116872905A/en active Pending
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