CN215752647U - Frame structure for improving bearing capacity of middle-large digging anti-rolling cab - Google Patents
Frame structure for improving bearing capacity of middle-large digging anti-rolling cab Download PDFInfo
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- CN215752647U CN215752647U CN202121200219.8U CN202121200219U CN215752647U CN 215752647 U CN215752647 U CN 215752647U CN 202121200219 U CN202121200219 U CN 202121200219U CN 215752647 U CN215752647 U CN 215752647U
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- bearing capacity
- lap joint
- cross beam
- front cross
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Abstract
The utility model discloses a frame structure for improving the bearing capacity of a middle-large digging anti-rolling cab, and belongs to the field of engineering machinery. The front upright post and the longitudinal beam are connected through a lap joint, the front cross beam is fixedly connected to the lap joint, and the front cross beam is of a solid structure. The bearing capacity of the lap joint and the solid front beam is greatly improved compared with that of a common rectangular pipe front beam during lateral loading, the bearing capacity of the structure is improved, and the manufacturing cost and the weight are not required to be greatly increased.
Description
Technical Field
The utility model belongs to engineering machinery, and particularly relates to a frame structure for improving the bearing capacity of a medium-large digging anti-rolling cab.
Background
The roll protection frame structure of the engineering vehicle has the function of reducing the possibility of crushing a driver who wears a safety belt when the engineering vehicle rolls over. The rollover test is divided into lateral loading, longitudinal loading and vertical loading, wherein the lateral loading is the most severe, and not only the bearing capacity requirement but also the energy absorption requirement are met. The middle-large digging anti-rolling cab has the problems of limited space, complex structure and large tonnage, and is difficult to meet the protection requirement without touching the deflection limit. The existing structural scheme is to increase the plate thickness or specification of each upright column to improve the bearing capacity, but the existing structural scheme faces the pressure of increasing the cost and the weight.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a frame structure for improving the bearing capacity of a middle-large digging anti-rolling cab, so as to overcome the defects that the rolling protection frame structure of an engineering vehicle in the prior art is difficult to realize low manufacturing cost and the weight meets the protection requirement.
The utility model is realized by adopting the following technical scheme:
the utility model provides a promote big dig in and prevent rolling driver's cabin bearing capacity's frame construction, is including connecting into frame construction's front column, front beam, longeron, rear column and well stand, connect through the overlap joint between front column and the longeron, front beam fixed connection is on the overlap joint.
Furthermore, the front cross beam is of a solid structure.
Further, the front cross beam is bone-shaped.
Further, the lap joint piece comprises a lap joint part and a protruding part, the lap joint part is fixedly connected with the front cross beam, and the protruding part is fixedly connected with the front upright post.
Further, the lap joint is a casting.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model adopts the form that the front cross beam of the solid rod piece is connected with the lap joint piece, and the bearing capacity of the lap joint piece and the solid front cross beam is greatly improved compared with the common rectangular tube front cross beam in the lateral loading process, thereby realizing the improvement of the bearing capacity of the structure and not needing to greatly increase the manufacturing cost and the weight.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the construction of the front cross member and lap joint connection of the present invention.
In the figure: 1. a front pillar; 2. a lap joint; 3. a front cross member; 4. a stringer; 5. a rear pillar; 6. a middle upright post; 21. a lap joint section; 22. a protruding portion.
Detailed Description
The utility model will be further explained with reference to the drawings.
As shown in figure 1, the frame structure for improving the bearing capacity of the middle-large digging anti-rollover cab comprises a front upright post 1, a front cross beam 3, a longitudinal beam 4, a rear upright post 5 and a middle upright post 6 which are connected into the frame structure, wherein the front upright post 1 and the longitudinal beam 4 are fixedly connected through a bridging piece 2, and two ends of the front cross beam 3 are fixedly connected onto the bridging piece 2.
Further, the front cross member 3 is of a solid structure.
Furthermore, the front cross beam 3 is in a bone shape with a thin middle and thick two ends, and the bone-shaped front cross beam 3 effectively protects the welding seams between the two sides and the lap joint part 2 and is favorable for resisting deformation.
Further, as shown in fig. 2, the overlapping member 2 includes an overlapping portion 21 and an extending portion 22, the overlapping portion 21 is provided with an installation groove, the front cross member 3 is inserted into the installation groove and welded to the overlapping portion 21 during installation, and the extending portion 22 is welded to the front pillar 1.
Further, the strap 2 is cast.
Claims (5)
1. The utility model provides a dig in promotion greatly and prevent rolling driver's cabin bearing capacity's frame construction, including front column (1), front beam (3), longeron (4), rear column (5) and middle standing pillar (6) that connect into frame construction, its characterized in that: the front upright posts (1) are connected with the longitudinal beams (4) through the overlapping pieces (2), and the front cross beam (3) is fixedly connected to the overlapping pieces (2).
2. The structure for improving the bearing capacity of a medium-large excavation rollover-prevention cab according to claim 1, characterized in that: the front cross beam (3) is of a solid structure.
3. The structure for improving the bearing capacity of a medium-large excavation rollover-prevention cab according to claim 1, characterized in that: the front cross beam (3) is in a bone shape.
4. The frame structure for improving the bearing capacity of a medium-large excavation rollover-prevention cab according to claim 1, characterized in that: the lap joint part (2) comprises a lap joint part (21) and an extension part (22), the lap joint part (21) is fixedly connected with the front cross beam (3), and the extension part (22) is fixedly connected with the front upright post (1).
5. The frame structure for improving the bearing capacity of a medium-large excavation rollover-prevention cab according to claim 3, characterized in that: the lap joint part (2) is a casting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121200219.8U CN215752647U (en) | 2021-05-31 | 2021-05-31 | Frame structure for improving bearing capacity of middle-large digging anti-rolling cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121200219.8U CN215752647U (en) | 2021-05-31 | 2021-05-31 | Frame structure for improving bearing capacity of middle-large digging anti-rolling cab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215752647U true CN215752647U (en) | 2022-02-08 |
Family
ID=80098721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121200219.8U Active CN215752647U (en) | 2021-05-31 | 2021-05-31 | Frame structure for improving bearing capacity of middle-large digging anti-rolling cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215752647U (en) |
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2021
- 2021-05-31 CN CN202121200219.8U patent/CN215752647U/en active Active
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