CN214945426U - Three-stage telescopic oil cylinder assembly of front supporting leg - Google Patents
Three-stage telescopic oil cylinder assembly of front supporting leg Download PDFInfo
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- CN214945426U CN214945426U CN202120355063.4U CN202120355063U CN214945426U CN 214945426 U CN214945426 U CN 214945426U CN 202120355063 U CN202120355063 U CN 202120355063U CN 214945426 U CN214945426 U CN 214945426U
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Abstract
The utility model belongs to the technical field of the mobile concrete pump, a tertiary flexible hydro-cylinder subassembly of preceding landing leg is related to, major structure includes brace table, first order hydro-cylinder, second level hydro-cylinder, third level hydro-cylinder, first order landing leg, second level landing leg and third level landing leg.
Description
The technical field is as follows:
the utility model belongs to the technical field of the mobile concrete pump, concretely relates to tertiary flexible hydro-cylinder subassembly of preceding landing leg.
Background art:
the large-scale pump truck needs to push the front supporting legs to be sequentially extended by using the three-stage oil cylinder to ensure the stability of the pump truck during material beating. The three-stage oil cylinder arrangement mode in the prior art is that a cylinder body and a piston rod of a first-stage oil cylinder are respectively connected with a support table and a first-stage supporting leg, the oil cylinder is arranged outside the support table, a cylinder head and a piston rod of a second-stage oil cylinder are respectively connected with the first-stage supporting leg and the second-stage supporting leg, a cylinder head and a piston rod of a third-stage oil cylinder are respectively connected with the second-stage supporting leg and the third-stage supporting leg, and a second-stage oil cylinder is arranged in a front supporting leg cavity. The shortcoming of this kind of hydro-cylinder mode of arranging is that the center of preceding landing leg cavity is not arranged in to first order hydro-cylinder, and the thrust or the pulling force direction that the hydro-cylinder produced when flexible are not collinear with the direction of motion of landing leg, and the yawing force that the hydro-cylinder produced makes first order landing leg off tracking, and the harm that the landing leg off tracking brought has: 1. the first-stage supporting leg and the supporting platform are eccentrically worn, the resistance is increased, and a piston rod of the first-stage oil cylinder is bent; 2. the left and right sides clearance size between first order landing leg and the brace table can not be guaranteed, if have the pipeline between first order landing leg and the brace table, crowded pipe easily. A front supporting leg three-stage telescopic oil cylinder assembly is characterized in that three-stage oil cylinder assemblies are all arranged in the center of a front supporting leg cavity, a piston rod and a cylinder head of a first-stage oil cylinder are respectively connected with a supporting table and a first-stage supporting leg, a piston rod of a second-stage oil cylinder is connected with the first-stage supporting leg, cylinder bodies of a second-stage oil cylinder and a third-stage oil cylinder are bound together, and a cylinder body and a piston rod of a third-stage oil cylinder are respectively connected with the second-stage supporting leg and the third-stage supporting leg; the oil cylinder combination mode has the advantages that: 1. the three-stage oil cylinders are all arranged in the support legs, so that the space of the cavity in the front support leg is effectively utilized, and the layout of the whole machine is more reasonable; 2. the three-stage oil cylinder is completely arranged in the supporting leg, so that eccentric wear of the first-stage supporting leg and the supporting platform is avoided; 3. the three-stage oil cylinder is completely arranged in the supporting leg, so that the resistance generated when the supporting leg extends and retracts is reduced, and the service life of the oil cylinder and the structural member is effectively prolonged.
The invention content is as follows:
an object of the utility model is to design a tertiary flexible hydro-cylinder subassembly of preceding landing leg, place the landing leg in the tertiary hydro-cylinder is whole, the space of the cavity in the landing leg before the effectual utilization makes the complete machine overall arrangement more reasonable, avoids first order landing leg and brace table to take place the eccentric wear, and the resistance that produces when the landing leg extends and retracts reduces, the effectual life-span that improves hydro-cylinder and structure.
In order to achieve the purpose, the main structure of the utility model comprises a support table, a first-stage oil cylinder, a second-stage oil cylinder, a third-stage oil cylinder, a first-stage support leg, a second-stage support leg and a third-stage support leg; the piston rod of the first-stage oil cylinder is connected with the supporting table in a bolt fixing mode, the cylinder head of the first-stage oil cylinder is connected with the first-stage supporting leg in a bolt fixing mode, the piston rod of the second-stage oil cylinder is connected with the first-stage supporting leg in a bolt fixing mode, the cylinder bodies of the second-stage oil cylinder and the third-stage oil cylinder are connected and bound together in a bolt fixing plate mode, the cylinder body of the third-stage oil cylinder is connected with the second-stage supporting leg in a bolt fixing mode, the piston rod of the third-stage oil cylinder is connected with the third-stage supporting leg in a bolt fixing mode, the first-stage oil cylinder is retracted, the second-stage oil cylinder, the second-stage supporting leg and the third-stage supporting leg of the third-stage oil cylinder can be arranged in the first-stage supporting leg.
Compared with the prior art, the utility model, a tertiary flexible hydro-cylinder subassembly of preceding landing leg, with the tertiary hydro-cylinder place the landing leg in whole in, the space of the cavity in the landing leg before the effectual utilization makes the complete machine overall arrangement more reasonable, avoids first order landing leg and brace table to take place the eccentric wear, the resistance that produces when the landing leg extends and retracts reduces, the effectual life-span that improves hydro-cylinder and structure. The device has the advantages of simple structure, flexible operation, friendly use environment, high safety performance and easy popularization and use.
Description of the drawings:
fig. 1 is a schematic view of the principle of the main body extending structure of the present invention.
Fig. 2 is a schematic view of the main body contraction structure principle of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following examples and accompanying drawings.
Example 1:
the main structure of the front support leg three-stage telescopic oil cylinder assembly comprises a support table 1, a first-stage oil cylinder 2, a second-stage oil cylinder 3, a third-stage oil cylinder 4, a first-stage support leg 5, a second-stage support leg 6 and a third-stage support leg 7; the piston rod of the first-stage oil cylinder 2 is connected with the supporting table 1 in a bolt fixing mode, the cylinder head of the first-stage oil cylinder 2 is connected with the first-stage supporting leg 5 in a bolt fixing mode, the piston rod of the second-stage oil cylinder 3 is connected with the first-stage supporting leg 5 in a bolt fixing mode, the cylinder bodies of the second-stage oil cylinder 3 and the third-stage oil cylinder 4 are connected and bound together in a bolt fixing plate mode, the cylinder body of the third-stage oil cylinder 4 is connected with the second-stage supporting leg 6 in a bolt fixing mode, the piston rod of the third-stage oil cylinder 4 is connected with the third-stage supporting leg 7 in a bolt fixing mode, the first-stage oil cylinder 2 during contraction, the second-stage oil cylinder 3, the second-stage supporting leg 6 and the third-stage supporting leg 7 of the third-stage oil cylinder 4 can be arranged in the first-stage supporting leg 5.
When the front supporting leg three-stage telescopic oil cylinder assembly related to the embodiment is used, the first-stage oil cylinder 2, the second-stage oil cylinder 3 and the third-stage oil cylinder 4 sequentially eject out the piston rods, so that the second-stage supporting leg 6 and the third-stage supporting leg 7 extend out of the first-stage supporting leg 5, and when the supporting legs are retracted, the first-stage oil cylinder 2, the second-stage oil cylinder 3 and the third-stage oil cylinder 4 sequentially retract the piston rods, so that the second-stage supporting leg 6 and the third-stage supporting leg 7 are retracted inside the first-stage supporting leg 5; the three-stage oil cylinder is completely arranged in the support leg, the space of the cavity in the front support leg is effectively utilized, the layout of the whole machine is more reasonable, eccentric wear of the first-stage support leg and the support table is avoided, resistance generated when the support leg extends and retracts is reduced, and the service life of the oil cylinder and the structure is effectively prolonged. The device has the advantages of simple structure, flexible operation, friendly use environment, high safety performance and easy popularization and use.
Claims (1)
1. A front supporting leg three-stage telescopic oil cylinder assembly is characterized in that a main body structure comprises a supporting table, a first-stage oil cylinder, a second-stage oil cylinder, a third-stage oil cylinder, a first-stage supporting leg, a second-stage supporting leg and a third-stage supporting leg; the piston rod of the first-stage oil cylinder is connected with the supporting table in a bolt fixing mode, the cylinder head of the first-stage oil cylinder is connected with the first-stage supporting leg in a bolt fixing mode, the piston rod of the second-stage oil cylinder is connected with the first-stage supporting leg in a bolt fixing mode, the cylinder bodies of the second-stage oil cylinder and the third-stage oil cylinder are connected and bound together in a bolt fixing plate mode, the cylinder body of the third-stage oil cylinder is connected with the second-stage supporting leg in a bolt fixing mode, the piston rod of the third-stage oil cylinder is connected with the third-stage supporting leg in a bolt fixing mode, the first-stage oil cylinder is retracted, the second-stage oil cylinder, the second-stage supporting leg and the third-stage supporting leg of the third-stage oil cylinder can be arranged in the first-stage supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120355063.4U CN214945426U (en) | 2021-02-09 | 2021-02-09 | Three-stage telescopic oil cylinder assembly of front supporting leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120355063.4U CN214945426U (en) | 2021-02-09 | 2021-02-09 | Three-stage telescopic oil cylinder assembly of front supporting leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945426U true CN214945426U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120355063.4U Active CN214945426U (en) | 2021-02-09 | 2021-02-09 | Three-stage telescopic oil cylinder assembly of front supporting leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945426U (en) |
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2021
- 2021-02-09 CN CN202120355063.4U patent/CN214945426U/en active Active
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