CN109115090B - Flexible shank upper bracket angle gauge and upper bracket angle checking and adjusting method - Google Patents
Flexible shank upper bracket angle gauge and upper bracket angle checking and adjusting method Download PDFInfo
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- CN109115090B CN109115090B CN201811244641.6A CN201811244641A CN109115090B CN 109115090 B CN109115090 B CN 109115090B CN 201811244641 A CN201811244641 A CN 201811244641A CN 109115090 B CN109115090 B CN 109115090B
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- upper bracket
- angle
- flexible shank
- measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a flexible shank upper bracket angle ruler, which comprises an angle ruler body, a positioning part and a measuring part, wherein the measuring part is fixedly arranged on the left side surface of the positioning part; the left side surface of the positioning part is provided with an auxiliary mounting positioning surface which can be attached to the side beam of the left upper bracket; the measuring part is provided with a lower measuring surface which can be attached to the upper surface of the leg bone of the flexible shank below the measuring part and an upper measuring surface which can be attached to the lower surface of the beam of the upper bracket above the measuring part, and an included angle between the lower measuring surface and the upper measuring surface is equal to an angle between the upper surface of the upper bracket and the upper surface of the flexible shank when the upper bracket and the flexible shank are installed in place. The invention also discloses a checking method and an adjusting method of the upper bracket angle. The invention can quickly check and adjust the angle of the upper bracket and meet the requirement of experiment precision.
Description
Technical Field
The invention belongs to the technical field of pedestrian protection flexible shank tests, and particularly relates to a flexible shank upper bracket angle gauge, an upper bracket angle checking method and an adjusting method.
Background
When the pedestrian protection test is prepared, as shown in fig. 1, the launching tool 4 is connected with the power equipment 1, and then the well-prepared flexible shank module is hung at the front end of the tool. During testing, the power equipment 1 pushes the flexible shank module and the launching tool 4 forwards together, after a certain speed is reached, the launching tool stops, the flexible shank module is separated from the launching tool 1, and then the flexible shank module freely flies for a certain distance and collides with a test vehicle. The flexible shank module can bounce randomly after being launched and collided with a vehicle, secondary collision is generated between the flexible shank module and the ground or other devices in the bouncing process, the angle of the upper bracket 2 can be changed due to the secondary collision, the angle is the key for ensuring the whole test precision, and the angle needs to be checked and adjusted again before the next test, so that the angle is consistent with the requirements of regulations, and the test precision is ensured.
Traditional mode of operation hangs flexible shank module on the transmission frock front end of equipment, uses general instrument to measure the contained angle of upper bracket upper surface and flexible shank upper surface, if the angle can not satisfy the requirement, need take off flexible shank module from equipment, vertically put on horizontal ground, loosen fixing bolt, carry out angle adjustment, screw up fixing bolt after the adjustment is accomplished, hang flexible shank module on equipment again, use general instrument to carry out the angle inspection, so relapse, until satisfying the requirement. The method has the advantages of complex operation, low efficiency and difficult control of precision.
Therefore, it is necessary to develop a flexible shank upper bracket angle gauge, an upper bracket angle checking method and an adjusting method.
Disclosure of Invention
The invention aims to provide a flexible shank upper bracket angle gauge, an upper bracket angle checking method and an upper bracket angle adjusting method, which can quickly check and adjust the angle of an upper bracket and meet the requirement of experiment precision.
The flexible shank upper bracket angle ruler comprises an angle ruler body, a positioning part and a measuring part, wherein the measuring part is fixedly arranged on the left side surface of the positioning part;
the left side surface of the positioning part is provided with an auxiliary mounting positioning surface which can be attached to the side beam of the left upper bracket;
the measuring part is provided with a lower measuring surface which can be attached to the upper surface of the leg bone of the flexible shank below the measuring part and an upper measuring surface which can be attached to the lower surface of the beam of the upper bracket above the measuring part, and the included angle between the lower measuring surface and the upper measuring surface is equal to the angle between the upper surface of the upper bracket and the upper surface of the flexible shank when the upper bracket and the flexible shank are installed in place; the upper bracket is fixedly connected with the flexible shank leg bone, and an included angle between the upper surface of the upper bracket and the upper surface of the flexible shank is converted into an angle for measuring the upper surface of the flexible shank leg bone and the lower surface of the beam of the upper bracket.
Further, the angle ruler body is integrally processed and molded.
The method for checking the angle of the upper bracket adopts the flexible shank upper bracket angle ruler, and comprises the following steps:
placing a flexible shank upper bracket angle ruler on the upper surface of a flexible shank leg bone, enabling a lower measuring surface of the flexible shank upper bracket angle ruler to be attached to the upper surface of the flexible shank leg bone, and pushing a positioning part with force, wherein the positioning part assists in mounting a positioning surface to be attached to an upper bracket side beam; at this time, if the upper measuring surface is attached to the lower surface of the upper bracket beam, it indicates that the upper bracket and the flexible shank are mounted in place, the angle of the upper bracket is correct, and adjustment is not needed, and if the attachment is not good, it indicates that the angle of the upper bracket needs to be adjusted.
The method for adjusting the angle of the upper bracket adopts the flexible shank upper bracket angle ruler, and comprises the following steps:
the mounting bolts are unscrewed, the flexible shank upper bracket angle ruler is placed on the upper surface of the flexible shank leg bone, the lower measuring surface of the flexible shank upper bracket angle ruler is attached to the upper surface of the flexible shank leg bone, the upper bracket is rotated, the lower surface of the upper bracket beam is well attached to the upper measuring surface of the flexible shank upper bracket angle ruler, and the mounting bolts are screwed down.
In the process of adjusting the angle of the upper bracket, when the mounting bolt is screwed down, the auxiliary mounting positioning surface is tightly attached to the side beam of the upper bracket by force; the angle of the upper bracket is prevented from changing due to the tightening force, the mounting precision is improved, and the repeated work is reduced.
The invention has the following advantages: because the included angle between the upper surface of the upper bracket and the upper surface of the flexible shank required by laws and regulations is converted into the angle between the upper surface of the leg bone of the flexible shank and the lower surface of the beam of the upper bracket, and meanwhile, an auxiliary mounting and positioning surface is designed, the situation that the angle of the upper bracket is changed due to the rotation of the position of the upper bracket caused by the tightening force of a mounting bolt in the fixing process of the upper bracket is prevented, the mounting precision is improved, and the repeated work is reduced. The invention can rapidly complete the inspection and adjustment of the angle of the upper bracket, and improves the test efficiency and precision. In addition, the invention also has the advantages of simple structure, convenient operation and strong practicability.
Drawings
FIG. 1 is a schematic view of the connection of a flexible shank to a power plant;
FIG. 2 is a simplified schematic view of the top of a flexible lower leg;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a simplified schematic illustration of the operation of the present invention;
FIG. 5 is a cross-sectional view of the present invention in cooperation with an upper bracket;
in the figure, 1-power equipment, 2-upper bracket, 3-flexible shank, 4-launching tool, 5-flexible shank upper surface, 6-mounting bolt, 7-upper bracket upper surface, 8-upper bracket beam lower surface, 9-upper bracket side beam, 10-flexible shank upper surface, 11-lower measuring surface, 12-auxiliary mounting and positioning surface, 13-upper measuring surface and 14-flexible shank.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in FIG. 2, in this embodiment, the flexible lower leg module includes a flexible lower leg 3, a flexible lower leg bone 14, and an upper bracket 2. The upper bracket 2 is entirely of the "door" type and includes an upper bracket cross member and two upper bracket side members 9. The flexible shank leg 14 is positioned and connected on the upper surface of the flexible shank 3, and the upper bracket 2 is fixedly connected with the flexible shank leg 14 through the mounting bolt 6.
The flexible shank upper bracket angle ruler shown in fig. 3 to 5 comprises an angle ruler body which is integrally formed and comprises a positioning part and a measuring part fixedly arranged on the left side surface of the positioning part. The left side surface of the positioning portion has an auxiliary mounting and positioning surface 12 which can be attached to the left upper bracket side member 9. The measuring part is provided with a lower measuring surface 11 which can be attached to the upper surface 10 of the leg bone of the flexible shank below the measuring part and an upper measuring surface 13 which can be attached to the lower surface 8 of the beam of the upper bracket above the measuring part, and the included angle between the lower measuring surface 11 and the upper measuring surface 13 is equal to the angle between the upper surface 7 of the upper bracket and the upper surface 5 of the flexible shank when the upper bracket 2 and the flexible shank 3 are installed in place. The upper bracket is fixedly connected with the flexible shank leg bone, and an included angle between the upper surface of the upper bracket and the upper surface of the flexible shank is converted into an angle for measuring the upper surface of the flexible shank leg bone and the lower surface of the beam of the upper bracket.
In the embodiment, because the included angle between the upper surface 7 of the upper bracket and the upper surface 5 of the flexible shank required by the laws and regulations is converted into the angle between the upper surface 10 of the leg bone of the flexible shank and the lower surface 8 of the beam of the upper bracket, and meanwhile, the auxiliary mounting and positioning surface 12 is designed, the auxiliary mounting and positioning surface 12 can effectively prevent the change of the angle of the upper bracket 2 caused by the rotation of the position of the upper bracket 2 due to the tightening force of the mounting bolt 6 in the fixing process of the upper bracket 2, thereby improving the mounting precision and reducing the repeated work. This bracket bevel protractor on flexible shank can accomplish the inspection and the adjustment of 2 angles of upper bracket fast, has promoted test efficiency and precision.
As shown in fig. 4 and 5, in this embodiment, a method for checking an upper bracket angle is further disclosed, where the flexible lower leg upper bracket angle ruler according to the present invention is used, and the checking method includes the following steps:
placing a flexible shank upper bracket angle ruler on the upper surface 10 of a flexible shank leg bone, attaching a lower measuring surface 11 of the flexible shank upper bracket angle ruler to the upper surface 10 of the flexible shank leg bone, and pushing a positioning part with force to attach an auxiliary mounting positioning surface 12 to an upper bracket side beam 9; at this time, if the upper measuring surface 13 is attached to the upper bracket beam lower surface 8, it indicates that the upper bracket 2 and the flexible lower leg 3 are mounted in place, and the angle of the upper bracket 2 is correct and does not need to be adjusted, and if the attachment is not good, it indicates that the angle of the upper bracket 2 needs to be adjusted.
As shown in fig. 4 and 5, in this embodiment, a method for adjusting an upper bracket angle is further disclosed, where the method for adjusting a flexible lower leg upper bracket angle ruler according to the present invention includes the following steps:
and (3) unscrewing the mounting bolt 6, placing the flexible shank upper bracket angle ruler on the upper surface 10 of the flexible shank leg bone, attaching the lower measuring surface 11 of the flexible shank upper bracket angle ruler to the upper surface 10 of the flexible shank leg bone, rotating the upper bracket 2, attaching the lower surface 8 of the upper bracket beam to the upper measuring surface 13 of the flexible shank upper bracket angle ruler well, and screwing the mounting bolt 6. When the mounting bolts 6 are screwed down, the auxiliary mounting positioning surface 12 needs to be tightly attached to the upper bracket side beam 9 by force, so that the angle of the upper bracket 2 is prevented from changing due to the screwing force, the mounting precision is improved, and the repeated work is reduced.
Claims (5)
1. The utility model provides a bracket bevel protractor on flexible shank which characterized in that: the angle ruler comprises an angle ruler body, a positioning part and a measuring part, wherein the measuring part is fixedly arranged on the left side surface of the positioning part;
the left side surface of the positioning part is provided with an auxiliary mounting and positioning surface (12) which can be attached to the left upper bracket side beam (9);
the measuring part is provided with a lower measuring surface (11) which can be attached to the upper surface (10) of the leg bone of the flexible shank below the measuring part and an upper measuring surface (13) which can be attached to the lower surface (8) of the beam of the upper bracket above the measuring part, and the included angle between the lower measuring surface (11) and the upper measuring surface (13) is equal to the angle between the upper surface (7) of the upper bracket and the upper surface (5) of the flexible shank when the upper bracket (2) and the flexible shank (3) are installed in place;
the upper bracket is fixedly connected with the flexible shank leg bone, and an included angle between the upper surface of the upper bracket and the upper surface of the flexible shank is converted into an angle for measuring the upper surface of the flexible shank leg bone and the lower surface of the beam of the upper bracket.
2. The flexible upper leg brace bevel of claim 1, wherein: the angle ruler body is integrally processed and formed.
3. A method for checking an upper bracket angle is characterized in that: the flexible shank upper bracket angle ruler according to claim 1 or 2, wherein the inspection method comprises the following steps:
placing a flexible shank upper bracket angle ruler on the upper surface (10) of a flexible shank leg bone, enabling a lower measuring surface (11) of the flexible shank upper bracket angle ruler to be attached to the upper surface (10) of the flexible shank leg bone, and pushing a positioning part with force, wherein an auxiliary mounting positioning surface (12) of the positioning part is attached to an upper bracket side beam (9); at the moment, if the upper measuring surface (13) is attached to the lower surface (8) of the upper bracket beam, the upper bracket (2) and the flexible shank (3) are installed in place, the angle of the upper bracket (2) is correct, and adjustment is not needed, and if the attachment is not good, the angle of the upper bracket (2) is adjusted.
4. A method for adjusting the angle of an upper bracket is characterized in that: the flexible shank upper bracket angle ruler according to claim 1 or 2, wherein the adjusting method comprises the following steps:
unscrewing mounting bolt (6), placing flexible shank upper bracket angle square on flexible shank leg bone upper surface (10) to make lower measuring face (11) of flexible shank upper bracket angle square laminate with flexible shank leg bone upper surface (10), rotate upper bracket (2), make upper bracket crossbeam lower surface (8) laminate well with last measuring face (13) of flexible shank upper bracket angle square, and it can to screw up mounting bolt (6).
5. The upper bracket angle adjusting method according to claim 4, wherein: in the process of adjusting the angle of the upper bracket, when the mounting bolt (6) is screwed down, the auxiliary mounting positioning surface (12) is required to be tightly attached to the side beam (9) of the upper bracket by force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244641.6A CN109115090B (en) | 2018-10-24 | 2018-10-24 | Flexible shank upper bracket angle gauge and upper bracket angle checking and adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811244641.6A CN109115090B (en) | 2018-10-24 | 2018-10-24 | Flexible shank upper bracket angle gauge and upper bracket angle checking and adjusting method |
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| Publication Number | Publication Date |
|---|---|
| CN109115090A CN109115090A (en) | 2019-01-01 |
| CN109115090B true CN109115090B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811244641.6A Active CN109115090B (en) | 2018-10-24 | 2018-10-24 | Flexible shank upper bracket angle gauge and upper bracket angle checking and adjusting method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157212B (en) * | 2020-01-06 | 2021-03-02 | 重庆长安汽车股份有限公司 | Thigh bone angle adjusting device and method of pedestrian protection thigh impactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353062A (en) * | 2016-09-18 | 2017-01-25 | 浙江吉利控股集团有限公司 | Flexible-leg reverse-impact dynamic calibration device and test method |
| CN107101836A (en) * | 2017-03-28 | 2017-08-29 | 上汽大众汽车有限公司 | Flexible leg test device and method of testing |
| CN107505112A (en) * | 2017-06-21 | 2017-12-22 | 吉利汽车研究院（宁波）有限公司 | A kind of flexible leg reverse impact caliberating device and method |
-
2018
- 2018-10-24 CN CN201811244641.6A patent/CN109115090B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353062A (en) * | 2016-09-18 | 2017-01-25 | 浙江吉利控股集团有限公司 | Flexible-leg reverse-impact dynamic calibration device and test method |
| CN107101836A (en) * | 2017-03-28 | 2017-08-29 | 上汽大众汽车有限公司 | Flexible leg test device and method of testing |
| CN107505112A (en) * | 2017-06-21 | 2017-12-22 | 吉利汽车研究院（宁波）有限公司 | A kind of flexible leg reverse impact caliberating device and method |
Non-Patent Citations (1)
| Title |
|---|
| 国外行人柔性腿型冲击器的发展及现状;刘卫国 等;《汽车工程学报》;20141130;第455-460页 * |
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