CN209979243U - Rack for bending test of heavy truck frame - Google Patents
Rack for bending test of heavy truck frame Download PDFInfo
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- CN209979243U CN209979243U CN201921054371.2U CN201921054371U CN209979243U CN 209979243 U CN209979243 U CN 209979243U CN 201921054371 U CN201921054371 U CN 201921054371U CN 209979243 U CN209979243 U CN 209979243U
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- longitudinal beam
- frame
- support
- rack
- fixedly connected
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Abstract
The utility model provides a rack for heavily block frame bending test, its characteristics lie in: the rack comprises 2 sub-racks, and the 2 sub-racks are symmetrically arranged on the left side and the right side below the frame; the single sub-rack comprises a movable longitudinal beam, a fixed longitudinal beam, 2 support legs and 3 connecting frames; the fixed longitudinal beam is horizontally arranged, the 2 support legs are respectively arranged at the front end and the rear end of the fixed longitudinal beam, the upper ends of the support legs are fixedly connected with the fixed longitudinal beam, and the 2 support legs are parallel to each other; the movable longitudinal beam is arranged above the fixed longitudinal beam, and a first connecting frame is arranged between the movable longitudinal beam and the fixed longitudinal beam; and a second connecting frame and a third connecting frame are arranged between the frame and the movable longitudinal beam. Adopt the rack support the rear portion of frame and carry out the bending test of frame, the atress load of frame more is close the in-service use operating mode, test data is more accurate.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field, especially a rack for heavily blocking frame bending test.
Background
The research and development of heavy truck parts often need to verify the performance, service life and reliability of the heavy truck parts through a bench test, and a frame bending test is to measure the deformation condition of a frame by simulating the bearing condition of the frame during working and constraining the frame and applying a certain load, so that the mechanical characteristics of the frame are known. At present, along with the continuous development of commercial car trade, the quality and the performance requirement of market to commercial car are higher and higher, and air suspension system is more favorable to putting in order the car lightweight because of it than leaf spring system, more is favorable to improving whole car travelling comfort, by more and more extensive application to commercial car especially heavily block the motorcycle type. For a heavy truck type adopting a rear air suspension system, in order to acquire mechanical data which is closer to the load-bearing working condition of a truck frame in the actual use process of the whole truck, a test bench capable of simulating a rear air suspension is urgently needed to connect and support the truck frame, and the truck frame is subjected to a bending test to acquire stress, rigidity characteristic data and fatigue durability data of the truck frame.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model provides a rack for heavily block frame bending test to among the solution prior art, when carrying out bending test to the frame of the heavily block vehicle that adopts back air suspension, the assembly connection mode of test rack and frame and the assembly connection mode difference of actual air suspension and frame are great, and the frame mechanical properties data of surveying differs great problem with the mechanical properties data of frame under operating condition.
The utility model aims at realizing through the technical scheme, it is including:
the utility model provides a rack for heavy truck frame bending test, its innovation point lies in: the rack comprises 2 sub-racks, and the 2 sub-racks are symmetrically arranged on the left side and the right side below the frame; the single sub-rack is arranged in the following way:
the single sub-rack comprises a movable longitudinal beam, a fixed longitudinal beam, 2 support legs and 3 connecting frames; the fixed longitudinal beam is horizontally arranged, the 2 support legs are respectively arranged at the front end and the rear end of the fixed longitudinal beam, the upper ends of the support legs are fixedly connected with the fixed longitudinal beam, and the 2 support legs are parallel to each other; the movable longitudinal beam is arranged above the fixed longitudinal beam, a first connecting frame is arranged between the movable longitudinal beam and the fixed longitudinal beam and comprises a first upper support and a first lower support, the upper end of the first upper support is fixedly connected with the middle part of the movable longitudinal beam, the lower end of the first lower support is fixedly connected with the middle part of the fixed longitudinal beam, and the lower end of the first upper support is hinged with the upper end of the first lower support; a second connecting frame and a third connecting frame are arranged between the frame and the movable longitudinal beam; the second connecting frame comprises a second upper support and a second lower support, the upper end of the second upper support is fixedly connected with the frame, the lower end of the second lower support is fixedly connected with the front end of the movable longitudinal beam, and the lower end of the second upper support is hinged with the upper end of the second lower support; the third connecting frame comprises a third upper support, a connecting rod and a third lower support, the upper end of the third upper support is fixedly connected with the frame, the lower end of the third lower support is fixedly connected with the rear end of the movable longitudinal beam, the upper end of the connecting rod is hinged to the lower end of the third upper support, and the lower end of the connecting rod is hinged to the upper end of the third lower support.
Due to the adoption of the technical scheme, the utility model discloses following advantage has: because the movable longitudinal beam simulates a plate spring of a suspension part, the movable longitudinal beam is connected with the fixed longitudinal beam by the first connecting frame, and the inside of the first connecting frame is hinged, the structure can well simulate the influence of a rear suspension system and wheels on the movement of the frame in the actual use process of the whole vehicle, and when bending load is applied to the specified position of the frame, the structure can compensate the rotation of the frame in the driving direction of the vehicle; meanwhile, the movable longitudinal beam is connected with the frame through the second connecting frame and the third connecting frame, the second connecting frame is internally hinged, and the third connecting frame is internally hinged through the connecting rod; so utilize the utility model discloses a bending test is carried out to the heavy truck frame that adopts back air suspension to the rack, can simulate heavy truck frame bending fatigue damage environmental model on indoor rack, enables the frame and more is close the bearing stress operating mode of in-service use to obtain more accurate frame stress, rigidity and fatigue durability data, realize that product performance can evaluate and risk assessment, improve product research and development verification ability.
Drawings
The drawings of the present invention are described below.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of fig. 1.
In the figure: 1. a movable longitudinal beam; 2. fixing the longitudinal beam; 3. a support leg; 4. a frame; 5. a first connecting frame; 6. a second link frame; 7. a third connecting frame; 51. a first upper bracket; 52. a first lower bracket; 61. a second upper bracket; 62. a second lower bracket; 71. a third upper support; 72. a connecting rod; 73. and a third lower bracket.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The rack for the bending test of the heavy truck frame as shown in the attached drawings 1 to 2 is characterized in that: the rack comprises 2 sub-racks, and the 2 sub-racks are symmetrically arranged at the left side and the right side below the frame 4; the single sub-rack is arranged in the following way:
the single sub-rack comprises a movable longitudinal beam 1, a fixed longitudinal beam 2, 2 supporting legs 3 and 3 connecting frames; the fixed longitudinal beam 2 is horizontally arranged, 2 support legs 3 are respectively arranged at the front end and the rear end of the fixed longitudinal beam 2, the upper ends of the support legs 3 are fixedly connected with the fixed longitudinal beam 2, and the 2 support legs 3 are parallel to each other; the movable longitudinal beam 1 is arranged above the fixed longitudinal beam 2, a first connecting frame 5 is arranged between the movable longitudinal beam 1 and the fixed longitudinal beam 2, the first connecting frame 5 comprises a first upper bracket 51 and a first lower bracket 52, the upper end of the first upper bracket 51 is fixedly connected with the middle part of the movable longitudinal beam 1, the lower end of the first lower bracket 52 is fixedly connected with the middle part of the fixed longitudinal beam 2, and the lower end of the first upper bracket 51 is hinged with the upper end of the first lower bracket 52; a second connecting frame 6 and a third connecting frame 7 are arranged between the frame 4 and the movable longitudinal beam 1; the second connecting frame 6 comprises a second upper bracket 61 and a second lower bracket 62, the upper end of the second upper bracket 61 is fixedly connected with the frame 4, the lower end of the second lower bracket 62 is fixedly connected with the front end of the movable longitudinal beam 1, and the lower end of the second upper bracket 61 is hinged with the upper end of the second lower bracket 62; the third connecting frame 7 comprises a third upper bracket 71, a connecting rod 72 and a third lower bracket 73, the upper end of the third upper bracket 71 is fixedly connected with the frame 4, the lower end of the third lower bracket 73 is fixedly connected with the rear end of the movable longitudinal beam 1, the upper end of the connecting rod 72 is hinged with the lower end of the third upper bracket 71, and the lower end of the connecting rod 72 is hinged with the upper end of the third lower bracket 73.
During the test, the front end of the frame utilizes the rack support connection in the prior art to simulate the support connection of the front suspension to the frame, the rear end of the frame adopts the rack support connection of the utility model to simulate the support connection of the rear air suspension to the frame, and then bending static load is applied to the specified position of the frame to complete the test of the frame stress and rigidity; and applying bending dynamic load to the specified position of the frame to complete the fatigue endurance life test of the frame.
Claims (1)
1. The utility model provides a rack for heavy truck frame bending test which characterized in that: the rack comprises 2 sub-racks, and the 2 sub-racks are symmetrically arranged at the left side and the right side below the frame (4); the single sub-rack is arranged in the following way:
the single sub-rack comprises a movable longitudinal beam (1), a fixed longitudinal beam (2), 2 support legs (3) and 3 connecting frames; the fixed longitudinal beam (2) is horizontally arranged, the 2 support legs (3) are respectively arranged at the front end and the rear end of the fixed longitudinal beam (2), the upper ends of the support legs (3) are fixedly connected with the fixed longitudinal beam (2), and the 2 support legs (3) are parallel to each other; the movable longitudinal beam (1) is arranged above the fixed longitudinal beam (2), a first connecting frame (5) is arranged between the movable longitudinal beam (1) and the fixed longitudinal beam (2), the first connecting frame (5) comprises a first upper support (51) and a first lower support (52), the upper end of the first upper support (51) is fixedly connected with the middle of the movable longitudinal beam (1), the lower end of the first lower support (52) is fixedly connected with the middle of the fixed longitudinal beam (2), and the lower end of the first upper support (51) is hinged with the upper end of the first lower support (52); a second connecting frame (6) and a third connecting frame (7) are arranged between the frame (4) and the movable longitudinal beam (1); the second connecting frame (6) comprises a second upper support (61) and a second lower support (62), the upper end of the second upper support (61) is fixedly connected with the frame (4), the lower end of the second lower support (62) is fixedly connected with the front end of the movable longitudinal beam (1), and the lower end of the second upper support (61) is hinged with the upper end of the second lower support (62); the third connecting frame (7) comprises a third upper support (71), a connecting rod (72) and a third lower support (73), the upper end of the third upper support (71) is fixedly connected with the frame (4), the lower end of the third lower support (73) is fixedly connected with the rear end of the movable longitudinal beam (1), the upper end of the connecting rod (72) is hinged to the lower end of the third upper support (71), and the lower end of the connecting rod (72) is hinged to the upper end of the third lower support (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054371.2U CN209979243U (en) | 2019-07-08 | 2019-07-08 | Rack for bending test of heavy truck frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921054371.2U CN209979243U (en) | 2019-07-08 | 2019-07-08 | Rack for bending test of heavy truck frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209979243U true CN209979243U (en) | 2020-01-21 |
Family
ID=69266969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921054371.2U Active CN209979243U (en) | 2019-07-08 | 2019-07-08 | Rack for bending test of heavy truck frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209979243U (en) |
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2019
- 2019-07-08 CN CN201921054371.2U patent/CN209979243U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: 401122 No.1, huanghuan North Road, Jinshan Avenue, northern New District, Yubei District, Chongqing Patentee after: SAIC Hongyan Automobile Co.,Ltd. Address before: 401122 No.1, huanghuan North Road, Jinshan Avenue, northern New District, Yubei District, Chongqing Patentee before: SAIC-IVECO HONGYAN commercial Vehicle Co.,Ltd. |