CN212159071U - Calibration device for longitudinal arm rack of automobile rear suspension - Google Patents
Calibration device for longitudinal arm rack of automobile rear suspension Download PDFInfo
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- CN212159071U CN212159071U CN202020854593.9U CN202020854593U CN212159071U CN 212159071 U CN212159071 U CN 212159071U CN 202020854593 U CN202020854593 U CN 202020854593U CN 212159071 U CN212159071 U CN 212159071U
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- trailing arm
- arm
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- rear suspension
- rack
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Abstract
The utility model discloses a suspension longitudinal wall rack calibration device behind car, including supporting A type device and the triangle-shaped device of using, two ends of A type device are equipped with a shank of bolt respectively, two shanks of A type device correspond the assembly with two mounting holes of longitudinal wall one end and fix through the nut tightening respectively, A type device top is equipped with the mounting hole for connect the test bench, be equipped with three shank of bolt on the triangle-shaped device base, the three shank of bolt of triangle-shaped device corresponds the assembly with the three mounting hole of the longitudinal wall other end and fixes through the nut tightening respectively, triangle-shaped device apex angle department is equipped with the mounting hole, be used for connecting the test bench. The utility model is used for the high-efficient quick accurate trailing arm calibration work of accomplishing.
Description
Technical Field
The utility model belongs to the technical field of the car, concretely relates to suspension trailing arm rack calibration device behind car for the calibration work of suspension trailing arm rack behind the car.
Background
The suspension system is an important component of the vehicle and plays an important role in the running process of the vehicle. In the suspension system, the vehicle body longitudinal beam and the steering knuckle are connected through the rear suspension longitudinal arm, so that the rear suspension longitudinal arm bears the longitudinal load of the whole vehicle, and the overall comfort level of the vehicle is improved. Therefore, accurate study of the working load of the trailing arm plays an important role in designing the rear suspension of the automobile.
At present, a general test method for the working load of the trailing arm is to stick a strain gauge to the trailing arm, measure the load-strain coefficient of the trailing arm by a method of calibrating a rack, and measure the strain of the trailing arm to obtain the working load of the trailing arm.
But the problems existing now are: in the actual calibration process of the longitudinal arm rack, due to the special structure of the longitudinal arm, the calibration is difficult to be carried out by simply stretching or compressing the longitudinal arm like a common two-force rod unless a large actuator is relied on and a complete rear suspension system is built so as to complete complex calibration work, so that the calibration work of the longitudinal arm is difficult to be rapidly, accurately and precisely completed.
Patent document 1 discloses a rear suspension trailing arm, including first bush and trailing arm body, the one end of trailing arm body is equipped with bushing pipe, the other end of trailing arm body is equipped with the through-hole, the bushing intraductal is equipped with first bush, the trailing arm body is equipped with the one end of first bush is equipped with the support, the support includes connecting plate and curb plate, the curb plate is equipped with orificial tubular structure for both ends, the first mouth of pipe of curb plate with the connecting plate is connected, the connecting plate corresponds first orificial position is equipped with logical groove, the curb plate with the connecting plate forms a holding tank, first bush is located in the holding tank and through the bolt with the curb plate is connected. However, the trailing arm of the rear suspension cannot adjust the installation angle of the trailing arm body, and cannot adapt to platform generalization.
Patent document 2 discloses a novel automotive suspension longitudinal arm structure, including the cantilever longitudinal frame of rectangular shape and install spring erection support and the automobile body coupling axle sleeve at both ends respectively, the mid-mounting of cantilever longitudinal frame has brake piping installing support, installs spring erection support the one end of cantilever longitudinal frame still the integration is provided with fore-and-aft longitudinal arm knuckle installation piece, and the one side that the longitudinal arm knuckle installation piece deviates from spring erection support is provided with first mounting hole, and brake piping installing support has replaced a plurality of pipeline mounting holes and machining hole among the prior art. The problem that this automotive suspension trailing arm structure was solved is a plurality of pipeline mounting holes and the machining hole of replacing among the prior art, but can not be used for demarcating the trailing arm.
Disclosure of Invention
In order to solve prior art at the actual rack calibration in-process of trailing arm, because the special construction of trailing arm, be difficult to like ordinary two power poles carry out simple tensile or compression and mark, thereby unless rely on large-scale actuator and build the problem of accomplishing complicated demarcation work of complete back suspension system, the utility model discloses a device is markd to suspension trailing arm rack behind car for the work is markd to high-efficient quick accurate completion trailing arm.
The utility model aims at realizing through the following scheme:
a calibration device for a longitudinal arm rack of a rear suspension of an automobile comprises an A-shaped device and a triangular device which are matched for use; the A-shaped device is connected with one end of the longitudinal arm through two bolt rods, and the triangular device is connected with the other end of the longitudinal arm through three bolt rods.
Preferably, two ends of the A-type device are respectively provided with a bolt rod, and the two bolt rods of the A-type device are correspondingly assembled with the two mounting holes at one end of the trailing arm and are respectively screwed and fixed through nuts.
Further, the top end of the A-type device is provided with a mounting hole for connecting the test bed.
Preferably, three bolt rods are arranged on the bottom edge of the triangular device, and the three bolt rods of the triangular device are correspondingly assembled with the three mounting holes at the other end of the longitudinal arm and are screwed and fixed through nuts respectively.
Furthermore, a mounting hole is formed in the top corner of the triangular device and used for being connected with a test bed.
During calibration, the A-shaped device and the triangular device are respectively arranged at two ends of the longitudinal arm, two bolt rods of the A-shaped device are sleeved into one end of the longitudinal arm and are screwed by nuts; three bolt rods of the triangular device are sleeved into the other end of the longitudinal arm and are screwed down by nuts.
The utility model has the advantages that:
the utility model perfectly converts the irregular-shaped longitudinal arm into a common two-force rod model on one hand, thereby facilitating the stretching calibration; on the other hand utilizes this device to avoid directly establishing ties load sensor to the trailing arm, because load sensor can only connect a hole in the three holes of trailing arm tip, thereby must produce the error according to the holy-vitamin south principle and influence experimental precision, utilizes the utility model discloses this problem has effectively been solved to the work is markd to the rack of accurate completion trailing arm, has effectively solved the trailing arm and has been difficult to quick accurate completion rack problem of markd because of the structure is special.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic three-dimensional structure of a type A device;
FIG. 2 is a schematic diagram of a three-view structure of an A-type apparatus;
FIG. 3 is a schematic three-dimensional structure of a triangular device;
FIG. 4 is a schematic diagram of a three-view structure of a triangular device;
FIG. 5 is a three-dimensional exploded view of the trailing arm and the assembly of the present invention;
fig. 6 is an assembly view of the trailing arm and the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
A calibration device for a longitudinal arm rack of a rear suspension of an automobile comprises an A-shaped device and a triangular device which are matched for use; the A-shaped device is connected with one end of the longitudinal arm through two bolt rods, and the triangular device is connected with the other end of the longitudinal arm through three bolt rods.
Preferably, two ends of the A-type device are respectively provided with a bolt rod, and the two bolt rods of the A-type device are correspondingly assembled with the two mounting holes at one end of the trailing arm and are respectively screwed and fixed through nuts.
Further, the top end of the A-type device is provided with a mounting hole for connecting the test bed.
Preferably, three bolt rods are arranged on the bottom edge of the triangular device, and the three bolt rods of the triangular device are correspondingly assembled with the three mounting holes at the other end of the longitudinal arm and are screwed and fixed through nuts respectively.
Furthermore, a mounting hole is formed in the top corner of the triangular device and used for being connected with a test bed.
The utility model discloses a theory of operation does:
during calibration, the A-shaped device and the triangular device are respectively arranged at two ends of the longitudinal arm, two bolt rods of the A-shaped device are sleeved into one end of the longitudinal arm and are screwed by nuts; three bolt rods of the triangular device are sleeved into the other end of the longitudinal arm and are screwed down by nuts.
On one hand, the device of the utility model perfectly converts the irregular-shaped trailing arm into a common two-force rod model to facilitate stretching calibration; on the other hand utilizes this device to avoid directly establishing ties load sensor to the trailing arm, because load sensor can only connect a hole in the three holes of trailing arm tip, thereby must produce the error according to the holy-vitamin south principle and influence experimental precision, utilizes the utility model discloses this problem has effectively been solved to the work is markd to the rack of accurate completion trailing arm, has effectively solved the trailing arm and has been difficult to quick accurate completion rack problem of markd because of the structure is special.
Examples
A calibration device for a longitudinal arm rack of a rear suspension of an automobile comprises an A-shaped device and a triangular device which are matched with each other.
Two ends of the A-type device are respectively provided with a bolt rod, the two bolt rods of the A-type device are correspondingly assembled with the two mounting holes at one end of the longitudinal arm and are respectively screwed and fixed through nuts, and the top end of the A-type device is provided with a mounting hole for connecting a test bench.
Three bolt rods are arranged on the bottom side of the triangular device, the three bolt rods of the triangular device and three mounting holes at the other end of the longitudinal arm are correspondingly assembled and are respectively screwed and fixed through nuts, and mounting holes are formed in the vertex angle of the triangular device and are used for connecting a test bed.
Two bolt rods of the A-shaped device are sleeved into one end of the longitudinal arm and are screwed down by a nut, and three bolt rods of the triangular device are sleeved into the other end of the longitudinal arm and are screwed down by a nut. One end of the circular hole of the triangular device is respectively connected with the load tension meter and the applied load in series.
A round hole at the top end of the A-shaped device is fixed on a test bed through a bolt rod, so that calibration work of the longitudinal arm rack is completed.
The load-strain coefficient of the trailing arm is calculated by measuring the load of the load tension meter and the strain of the trailing arm, the trailing arm is installed on the vehicle, and the working load of the trailing arm is obtained by measuring the strain of the trailing arm.
Utilize the utility model discloses the device turns into two force rod models with the anomalous longitudinal wall of shape to the work is markd to the rack of accurate completion longitudinal wall fast, has effectively solved the longitudinal wall and has been difficult to the problem that quick accurate completion rack was markd because of the structure is special.
Claims (5)
1. A calibration device for a longitudinal arm rack of a rear suspension of an automobile is characterized by comprising an A-shaped device and a triangular device which are matched for use; the A-shaped device is connected with one end of the longitudinal arm through two bolt rods, and the triangular device is connected with the other end of the longitudinal arm through three bolt rods.
2. The calibration device for the platform frame of the trailing arm of the rear suspension of the automobile as claimed in claim 1, wherein the two ends of the type A device are respectively provided with a bolt rod, and the two bolt rods of the type A device are correspondingly assembled with the two mounting holes at one end of the trailing arm and are respectively screwed and fixed through nuts.
3. The calibration device for the trailing arm rack of the rear suspension of an automobile as claimed in claim 1, wherein the top end of the A-shaped device is provided with a mounting hole for connecting with a test rack.
4. The calibration device for the platform frame of the trailing arm of the rear suspension of the automobile as claimed in claim 1, wherein the triangular device is provided with three bolt rods on the bottom edge, and the three bolt rods of the triangular device are correspondingly assembled with the three mounting holes at the other end of the trailing arm and are respectively screwed and fixed through nuts.
5. The calibration device for the trailing arm rack of the rear suspension of an automobile as claimed in claim 1, wherein the triangular device is provided with mounting holes at the top corners for connecting with a test rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020854593.9U CN212159071U (en) | 2020-05-21 | 2020-05-21 | Calibration device for longitudinal arm rack of automobile rear suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020854593.9U CN212159071U (en) | 2020-05-21 | 2020-05-21 | Calibration device for longitudinal arm rack of automobile rear suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212159071U true CN212159071U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020854593.9U Active CN212159071U (en) | 2020-05-21 | 2020-05-21 | Calibration device for longitudinal arm rack of automobile rear suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212159071U (en) |
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2020
- 2020-05-21 CN CN202020854593.9U patent/CN212159071U/en active Active
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