CN215525088U - Rail vehicle bumper shock absorber performance test bench - Google Patents
Rail vehicle bumper shock absorber performance test bench Download PDFInfo
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- CN215525088U CN215525088U CN202123089526.6U CN202123089526U CN215525088U CN 215525088 U CN215525088 U CN 215525088U CN 202123089526 U CN202123089526 U CN 202123089526U CN 215525088 U CN215525088 U CN 215525088U
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- shock absorber
- rotating shaft
- vehicle shock
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Abstract
The utility model discloses a rail vehicle shock absorber performance test bed which comprises a base and a test frame arranged on the base, wherein a horizontally arranged rotating shaft is fixedly connected to the test frame, and the rotating shaft is connected to a rotating mechanism arranged on the base and is driven by the rotating mechanism to rotate; the test jig is provided with a first clamp and a second clamp relatively, the first clamp is driven by a linear driving mechanism arranged on the test jig and moves in a displacement mode relative to the second clamp, and a displacement sensor is arranged on the linear driving mechanism; the second clamp is fixedly arranged on the test frame, and a load sensor is arranged at the joint of the second clamp and the test frame. The utility model provides a railway vehicle shock absorber performance test bed which can test damping performance of a sample in a vertical direction and a horizontal direction.
Description
Technical Field
The utility model relates to a rail vehicle shock absorber, in particular to a test bed for testing the performance of the rail vehicle shock absorber.
Background
In recent years, with the rapid development of rail transit, along with the improvement of the running speed of a rail vehicle, the running interference force of the rail vehicle is more and more complex, the interference strength is higher and higher, higher and higher requirements are provided for the shock absorber of the rail vehicle, and the requirement for testing the damping performance of the shock absorber of the rail vehicle is generated. The conventional damping test bench can only vertically clamp a test sample and test damping performance in the vertical direction, but in practical application, the installation modes of the rail vehicle shock absorber are various, and damping performance data in the horizontal direction become more and more important under the condition that the performance requirement of the shock absorber is improved.
SUMMERY OF THE UTILITY MODEL
In view of the defect that the conventional damping test bench can only test the damping performance in the vertical direction, the utility model provides the rail vehicle shock absorber performance test bench which can test the damping performance of a test sample in the vertical direction and the horizontal direction.
In order to achieve the above object, the following technical solutions are adopted in the embodiments of the present invention.
A rail vehicle shock absorber performance test bed comprises a base and a test frame arranged on the base, wherein a horizontally arranged rotating shaft is fixedly connected to the test frame, is connected to a rotating mechanism arranged on the base and is driven by the rotating mechanism to rotate and drive the test frame to rotate together; the test jig is provided with a first clamp and a second clamp relatively, the first clamp is driven by a linear driving mechanism arranged on the test jig and performs reciprocating displacement motion relative to the second clamp, and the linear driving mechanism is provided with a displacement sensor; the second clamp is fixedly arranged on the test frame, and a load sensor is arranged at the joint of the second clamp and the test frame.
According to one aspect of the utility model, the test frame comprises a fixed beam and a movable beam which are arranged oppositely, a guide post is fixedly connected to the fixed beam, and the movable beam is connected to the guide post in a sliding manner; an oil cylinder is connected between the fixed beam and the movable beam and drives the movable beam to slide on the guide post; the first clamp and the linear driving mechanism are both arranged on the movable beam, and the second clamp is arranged on the fixed beam.
According to one aspect of the utility model, one end of the rotating shaft is connected with the rotating mechanism, and the other end of the rotating shaft is fixedly connected with a clamping mechanism, the clamping mechanism comprises a clamping arm connected with the rotating shaft and a clamping jaw arranged on the clamping arm, and the clamping jaw is clamped on the guide post.
According to one aspect of the utility model, the clamping arm is provided with a sliding seat, the sliding seat is slidably connected to an arc-shaped guide rail arranged on the base, and the sliding seat is matched and slides in the arc-shaped guide rail when the test frame rotates along with the rotating shaft.
According to one aspect of the utility model, the linear drive mechanism is a servo hydraulic cylinder.
According to one aspect of the utility model, the rotating mechanism is a swing hydraulic cylinder.
The implementation of the utility model has the advantages that: the rotating mechanism can drive the horizontally arranged rotating shaft to rotate, the rotating shaft drives the test frame to rotate, and the test frame can be in a vertical form or a horizontal form, so that the first clamp and the second clamp are in vertical relative distribution and horizontal relative distribution, and the damping test can be performed on the rail vehicle shock absorber in two vertical and horizontal directions.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic front view of a railway vehicle shock absorber performance test bed according to the present invention;
fig. 2 is a schematic rear view structure diagram of a rail vehicle shock absorber performance test bed according to the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1 and 2, the rail vehicle shock absorber performance test bed comprises a base and a test frame arranged on the base.
The base includes bottom plate 1, vertical setting and the vertical mounting panel 2 of fixed connection on the bottom plate that the level set up, and bottom plate and vertical mounting panel are the steel plate.
The testing jig is fixedly connected with a rotating shaft 3 which is horizontally arranged, and the rotating shaft is connected to a rotating mechanism 4 arranged on the base and is driven by the rotating mechanism to rotate.
Specifically, rotary mechanism is a swing hydraulic cylinder, and swing hydraulic cylinder sets firmly at vertical mounting panel, and its output is connected with the pivot. When the swing hydraulic cylinder drives the rotating shaft to rotate, the testing frame also rotates along with the rotating shaft because the rotating shaft is fixedly connected with the testing frame.
The testing jig is provided with a first clamp 5 and a second clamp 6 which are opposite, the first clamp is driven by a linear driving mechanism 7 arranged on the testing jig to perform displacement motion relative to the second clamp, and a displacement sensor is arranged on the linear driving mechanism; the second clamp is fixedly arranged on the test frame, and a load sensor is arranged at the joint of the second clamp and the test frame.
Specifically, the linear driving mechanism is a servo hydraulic cylinder. The servo hydraulic cylinder provides power for the first clamp, so that the first clamp performs high-frequency reciprocating displacement motion relative to the second clamp. In the test, the first clamp and the second clamp respectively clamp two ends of a tested sample to perform damping test on the rail vehicle shock absorber.
The test frame comprises a fixed beam 8 and a movable beam 9 which are oppositely arranged, the fixed beam is fixedly connected with a guide post 10, and the movable beam is sleeved and connected on the guide post in a sliding manner; an oil cylinder 11 is further connected between the fixed beam and the movable beam, and the oil cylinder drives the movable beam to do sliding motion on the guide post. The first clamp is arranged at the lower end part of the movable beam, and the linear driving mechanism is arranged at the upper end part of the movable beam.
Specifically, two guide posts are connected between the fixed beam and the movable beam; two ends of the fixed beam are respectively connected with two ends of the movable beam through an oil cylinder. The oil cylinder moves to drive the movable beam to slide on the guide post, and the distance between the fixed beam and the movable beam is adjusted to adapt to the rail vehicle shock absorbers with different specifications.
The swing hydraulic cylinder is connected to pivot one end, and other end fixed connection is on a fixture, fixture is including the centre gripping arm 12 of connecting the pivot and the clamping jaw 13 of setting on the centre gripping arm, the clamping jaw presss from both sides and presss from both sides on the guide post.
Specifically, the clamping arm is provided with two clamping jaws which respectively clamp two guide columns.
The clamping arm is provided with a sliding seat, the sliding seat is connected to an arc-shaped guide rail 14 arranged on the base in a sliding mode, and the sliding seat slides in the arc-shaped guide rail in a matched mode when the test frame rotates along with the rotating shaft.
In addition, still be provided with on the vertical mounting panel: the encoder 15 is used for monitoring the rotation angle of the feedback test frame; and a valve group 16 for controlling the action of the swing hydraulic cylinder.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The rail vehicle shock absorber performance test bed is characterized by comprising a base and a test frame arranged on the base, wherein a horizontally arranged rotating shaft is fixedly connected to the test frame, is connected to a rotating mechanism arranged on the base and is driven by the rotating mechanism to rotate and drive the test frame to rotate together; the test jig is provided with a first clamp and a second clamp relatively, the first clamp is driven by a linear driving mechanism arranged on the test jig and performs reciprocating displacement motion relative to the second clamp, and the linear driving mechanism is provided with a displacement sensor; the second clamp is fixedly arranged on the test frame, and a load sensor is arranged at the joint of the second clamp and the test frame.
2. The railway vehicle shock absorber performance test bed as claimed in claim 1, wherein the test jig comprises a fixed beam and a movable beam which are arranged oppositely, the fixed beam is fixedly connected with a guide post, and the movable beam is slidably connected with the guide post; an oil cylinder is connected between the fixed beam and the movable beam and drives the movable beam to slide on the guide post; the first clamp and the linear driving mechanism are both arranged on the movable beam, and the second clamp is arranged on the fixed beam.
3. The railway vehicle shock absorber performance test bed as claimed in claim 2, wherein one end of the rotating shaft is connected with the rotating mechanism, and the other end of the rotating shaft is fixedly connected with a clamping mechanism, the clamping mechanism comprises a clamping arm connected with the rotating shaft and a clamping jaw arranged on the clamping arm, and the clamping jaw is clamped on the guide column.
4. The railway vehicle shock absorber performance test bed as claimed in claim 3, wherein the clamping arm is provided with a slide seat, the slide seat is slidably connected to an arc-shaped guide rail arranged on the base, and the slide seat is matched with and slides in the arc-shaped guide rail when the test frame rotates along with the rotating shaft.
5. The railway vehicle shock absorber performance test stand of claim 4, wherein the linear drive mechanism is a servo hydraulic cylinder.
6. The railway vehicle shock absorber performance test stand of claim 5, wherein the rotating mechanism is a swing hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123089526.6U CN215525088U (en) | 2021-12-10 | 2021-12-10 | Rail vehicle bumper shock absorber performance test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123089526.6U CN215525088U (en) | 2021-12-10 | 2021-12-10 | Rail vehicle bumper shock absorber performance test bench |
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| Publication Number | Publication Date |
|---|---|
| CN215525088U true CN215525088U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123089526.6U Active CN215525088U (en) | 2021-12-10 | 2021-12-10 | Rail vehicle bumper shock absorber performance test bench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964830A (en) * | 2022-06-01 | 2022-08-30 | 长春汽车检测中心有限责任公司 | Vehicle shock absorber performance test device |
-
2021
- 2021-12-10 CN CN202123089526.6U patent/CN215525088U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964830A (en) * | 2022-06-01 | 2022-08-30 | 长春汽车检测中心有限责任公司 | Vehicle shock absorber performance test device |
| CN114964830B (en) * | 2022-06-01 | 2024-05-31 | 长春汽车检测中心有限责任公司 | Performance test device for vehicle shock absorber |
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