CN210591846U - Ejector rod structure of electronic hydraulic brake device - Google Patents
Ejector rod structure of electronic hydraulic brake device Download PDFInfo
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- CN210591846U CN210591846U CN201921511803.8U CN201921511803U CN210591846U CN 210591846 U CN210591846 U CN 210591846U CN 201921511803 U CN201921511803 U CN 201921511803U CN 210591846 U CN210591846 U CN 210591846U
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- ejector rod
- mandril
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Abstract
The utility model relates to a mandril structure of an electronic hydraulic brake device, which comprises a mandril head, a gasket, a mandril and a mandril support; the method is characterized in that: the bottom end of the ejector rod head is provided with straight knurls; the top end of the ejector rod is provided with a blind hole coaxial with the ejector rod, and the tail end of the ejector rod is provided with a ball head coaxial with the ejector rod; the section of the ejector rod support is of an inverted T-shaped structure, and a ball socket is arranged in the top end axis direction of the ejector rod support; the utility model has simple structure and easy realization, not only solves the adjustment of the total length of the ejector rod component, but also realizes the function of the angle compensation of the ejector rod component; the total length of the ejector rod assembly is adjusted by the combined adjustment of the thicknesses of different gaskets; the interference magnitude is absorbed by arranging an axial groove at the blind hole at the end part of the ejector rod; the bottom end of the ejector rod is connected with the ejector rod support in a riveting mode to swing, so that angle compensation adjustment of the ejector rod can be realized.
Description
Technical Field
The utility model relates to an automobile parts technical field especially relates to an electronic hydraulic brake device's ejector pin structure.
Background
The vacuum booster is characterized in that a principle of air suction during the operation of an engine is utilized, vacuum is generated on one side of the booster, a pressure difference is formed between the vacuum booster and the other side of the booster, wherein the pressure difference is the same as the atmospheric pressure, and the braking thrust is increased by utilizing the pressure difference. The electronic hydraulic brake device is derived from a vacuum booster, converts the rotary motion of a motor into linear motion through a mechanical transmission device, expands the output torque of the motor by using a proper transmission ratio, and realizes the braking boosting under the control of a sensor and an ECU.
No matter be vacuum booster or electronic hydraulic brake device, all need to produce hydraulic pressure through the ejector pin promotion brake master cylinder of booster, at booster assembling process, because the existence of part size accumulative error, need the ejector pin to possess the compensation function of angle and length, the wearing and tearing of the first piston of reducible brake master cylinder on the one hand, on the other hand adjustable braking system's idle stroke length, the length of easy automatic adjustment ejector pin on the assembly line especially.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an electronic hydraulic brake device's ejector pin structure, the ejector pin structure that can solve general hydraulic brake device is because part size accumulation error to lead to that master cylinder piston wearing and tearing are serious and braking system idle stroke length problem unadjustable.
In order to solve the technical problem, the utility model adopts the technical scheme that: a mandril structure of an electronic hydraulic brake device comprises a mandril head, a gasket, a mandril and a mandril support; the innovation points are as follows: the bottom end of the ejector rod head is provided with straight knurls; the top end of the ejector rod is provided with a blind hole coaxial with the ejector rod, and the tail end of the ejector rod is provided with a ball head coaxial with the ejector rod; the section of the ejector rod support is of an inverted T-shaped structure, and a ball socket is arranged in the top end axis direction of the ejector rod support;
axial grooves penetrating through the blind holes are formed in two side edges of the blind hole end of the ejector rod; the straight knurling at the bottom end of the ejector rod head is connected with the blind hole at the top end of the ejector rod in an interference fit manner; the gasket is arranged in the blind hole at the top end of the ejector rod, the thickness of the gasket is 0.2mm, 0.3mm and 0.5mm, and the total length of the ejector rod structure is adjusted through the thickness combination of different gaskets; the ball head at the tail end of the ejector rod is connected with the ball socket at the top end of the ejector rod support in a riveting mode.
Furthermore, the ball head at the tail end of the ejector rod and the ball socket of the ejector rod support can swing within 10 degrees from the vertical direction.
The utility model has the advantages that:
1) the utility model has simple structure and easy realization, not only solves the adjustment of the total length of the ejector rod component, but also realizes the function of the angle compensation of the ejector rod component; the total length of the ejector rod assembly is adjusted by the combined adjustment of the thicknesses of different gaskets; the interference magnitude is absorbed by arranging an axial groove at the blind hole at the end part of the ejector rod; the bottom end of the ejector rod is connected with the ejector rod support in a riveting mode to swing, so that angle compensation adjustment of the ejector rod can be realized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an exploded view of a push rod structure of an electronic hydraulic brake device according to the present invention.
Fig. 2 is an assembly structure diagram of the electronic hydraulic brake device of the present invention.
Detailed Description
The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
Fig. 1 and fig. 2 show a push rod structure of an electronic hydraulic brake device, which comprises a push rod head 1, a gasket 2, a push rod 3 and a push rod support 4; the bottom end of the ejector rod head 1 is provided with a straight knurling 5; the top end of the ejector rod 3 is provided with a blind hole 6 coaxial with the ejector rod, and the tail end of the ejector rod 2 is provided with a ball head 8 coaxial with the ejector rod; the section of the ejector rod support 4 is of an inverted T-shaped structure, and a ball socket 9 is arranged in the top end axis direction of the ejector rod support 4;
two sides of the blind hole 6 end of the ejector rod are provided with axial grooves 7 penetrating through the blind hole; the straight knurling 5 at the bottom end of the ejector rod head 1 is connected with the blind hole 6 at the top end of the ejector rod 3 in an interference fit manner; the gasket 2 is arranged in a blind hole 6 at the top end of the ejector rod 3, the thickness of the gasket 2 is 0.2mm, 0.3mm and 0.5mm, and the total length of the structure of the ejector rod 3 is adjusted by combining the thicknesses of different gaskets 2; the ball head 8 at the tail end of the ejector rod 3 is connected with the ball socket 9 at the top end of the ejector rod support 4 in a riveting mode.
The ball 8 at the tail end of the ejector rod 3 and the ball socket 9 of the ejector rod support 4 can swing within 10 degrees with the vertical direction.
The ejector rod head 1, the ejector rod 3 and the ejector rod support 4 are made of 35# steel; the gasket 2 is made of 304 steel.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A mandril structure of an electronic hydraulic brake device comprises a mandril head, a gasket, a mandril and a mandril support; the method is characterized in that: the bottom end of the ejector rod head is provided with straight knurls; the top end of the ejector rod is provided with a blind hole coaxial with the ejector rod, and the tail end of the ejector rod is provided with a ball head coaxial with the ejector rod; the section of the ejector rod support is of an inverted T-shaped structure, and a ball socket is arranged in the top end axis direction of the ejector rod support;
axial grooves penetrating through the blind holes are formed in two side edges of the blind hole end of the ejector rod; the straight knurling at the bottom end of the ejector rod head is connected with the blind hole at the top end of the ejector rod in an interference fit manner; the gasket is arranged in the blind hole at the top end of the ejector rod, the thickness of the gasket is 0.2mm, 0.3mm and 0.5mm, and the total length of the ejector rod structure is adjusted through the thickness combination of different gaskets; the ball head at the tail end of the ejector rod is connected with the ball socket at the top end of the ejector rod support in a riveting mode.
2. The carrier rod structure of an electro-hydraulic brake device as claimed in claim 1, wherein: the ball head at the tail end of the ejector rod and the ball socket of the ejector rod support can swing within 10 degrees from the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921511803.8U CN210591846U (en) | 2019-09-11 | 2019-09-11 | Ejector rod structure of electronic hydraulic brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921511803.8U CN210591846U (en) | 2019-09-11 | 2019-09-11 | Ejector rod structure of electronic hydraulic brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210591846U true CN210591846U (en) | 2020-05-22 |
Family
ID=70693207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921511803.8U Active CN210591846U (en) | 2019-09-11 | 2019-09-11 | Ejector rod structure of electronic hydraulic brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210591846U (en) |
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2019
- 2019-09-11 CN CN201921511803.8U patent/CN210591846U/en active Active
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