CN210214634U - Anti-sinking chassis supporting leg of horizontal oil cylinder - Google Patents
Anti-sinking chassis supporting leg of horizontal oil cylinder Download PDFInfo
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- CN210214634U CN210214634U CN201921186622.2U CN201921186622U CN210214634U CN 210214634 U CN210214634 U CN 210214634U CN 201921186622 U CN201921186622 U CN 201921186622U CN 210214634 U CN210214634 U CN 210214634U
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- supporting leg
- horizontal
- leg box
- oil cylinder
- order horizontal
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Abstract
The utility model discloses an anti-sinking chassis supporting leg of a horizontal oil cylinder, which comprises a first-order horizontal supporting leg box, a second-order horizontal supporting leg box and a vertical supporting leg; one end of the second-order horizontal supporting leg box is connected with the vertical supporting leg, the other end of the second-order horizontal supporting leg box is sleeved on the inner side of the first-order horizontal supporting leg box, and the second-order horizontal supporting leg box and the first-order horizontal supporting leg box move relatively through the extension and contraction of the horizontal oil cylinder; the horizontal oil cylinder comprises a cylinder body and a piston rod, the horizontal oil cylinder is arranged on the inner sides of the first-order horizontal supporting leg box and the second-order horizontal supporting leg box, a first movable supporting mechanism is arranged below the cylinder body, and the first movable supporting mechanism comprises a base and a pulley; the base is fixedly connected with the inner side of the second-order horizontal leg box, and grooves matched with the cylinder body are formed in the circumferential direction of the pulleys. The first movable supporting mechanism supports the stressed position all the time in the moving process, so that the phenomenon that the oil cylinder sinks due to too long extension is prevented, and the bending of a cylinder rod of the horizontal oil cylinder is avoided.
Description
Technical Field
The utility model belongs to the technical field of the hoist spare part, in particular to chassis landing leg that sinking is prevented to horizontal cylinder.
Background
The underframe is a core component of the automobile crane, and the design of the underframe legs directly influences the hoisting performance of the crane. The horizontal oil cylinder is one of the core components for realizing the extension of the telescopic supporting legs, and the different installation modes of the horizontal oil cylinder directly influence the operation performance of the whole vehicle. At present, a horizontal oil cylinder is installed in two modes, one mode is a single-stage and double-stage oil cylinder installation mode, and the other mode is an oil cylinder and rope row installation mode.
At present, the support legs of the automobile crane in the market directly adopt a single-stage or double-stage oil cylinder installation mode, the pressure of a hydraulic system required by the mode is high, and the middle of the horizontal oil cylinder is easy to droop after the oil cylinder is completely extended out due to long stroke and thin cylinder rod diameter, so that the problems that the cylinder rod of the horizontal oil cylinder is easy to bend, a sealing element is easy to wear, hydraulic oil leaks and the like are caused.
Disclosure of Invention
The utility model aims at the not enough of above-mentioned prior art, provide a chassis landing leg that prevents that horizontal oil cylinder jar pole is flexible.
For solving the above technical problem, the utility model discloses a technical scheme is:
an anti-sinking chassis supporting leg of a horizontal oil cylinder comprises a first-order horizontal supporting leg box, a second-order horizontal supporting leg box and a vertical supporting leg; one end of the second-order horizontal supporting leg box is connected with the vertical supporting leg, the other end of the second-order horizontal supporting leg box is sleeved on the inner side of the first-order horizontal supporting leg box, and the second-order horizontal supporting leg box and the first-order horizontal supporting leg box move relatively through the extension and contraction of the horizontal oil cylinder; the horizontal oil cylinder comprises a cylinder body and a piston rod, the horizontal oil cylinder is arranged on the inner sides of the first-order horizontal supporting leg box and the second-order horizontal supporting leg box, a first movable supporting mechanism is arranged below the cylinder body, and the first movable supporting mechanism comprises a base and a pulley; the base is fixedly connected with the inner side of the second-order horizontal supporting leg box, the pulley is rotatably connected with a pivot at the top end of the base, the pivot is perpendicular to the cylinder body, and grooves matched with the cylinder body are formed in the circumferential direction of the pulley.
A second movable supporting mechanism is arranged above the cylinder body; and the second movable supporting mechanism is fixedly connected with the inner side of the second-order horizontal leg box.
And a bearing is arranged on the inner side of the pulley, and the pulley is rotatably connected with the pivot through the bearing.
The end of the cylinder body is hinged with the inner side of the first-order horizontal supporting leg box, and the end of the piston rod is hinged with the inner side of the second-order horizontal supporting leg box.
The utility model has the advantages that: a first movable supporting mechanism is arranged below the rod end of the horizontal oil cylinder body of the support leg of the underframe of the automobile crane. The first movable supporting mechanism is provided with a pulley, and the pulley moves along with the second-order horizontal supporting leg box in the extending process. The sinking stress position in the horizontal oil cylinder can move along with the extension and contraction of the horizontal oil cylinder, the first movable supporting mechanism supports the stress position all the time in the moving process, the phenomenon that the oil cylinder sinks due to too long extension is prevented, and the defects that a cylinder rod of the horizontal oil cylinder is easy to bend, a sealing element is easy to wear, hydraulic oil leaks and the like are overcome.
Drawings
FIG. 1 is a diagram of an extended state of the embodiment;
FIG. 2 is a diagram of the embodiment in a retracted state;
FIG. 3 is a schematic view of a first movable support mechanism;
fig. 4 is a schematic left side cross-sectional view of fig. 3.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
As shown in fig. 1 to 4, an undercarriage leg with a sinking prevention function of a horizontal oil cylinder 4 comprises a first-order horizontal leg box 1, a second-order horizontal leg box 2 and a vertical leg 3; one end of the second-order horizontal leg box 2 is connected with the vertical leg 3, the other end of the second-order horizontal leg box is sleeved on the inner side of the first-order horizontal leg box 1, and the second-order horizontal leg box and the first-order horizontal leg box move relatively through the expansion and contraction of the horizontal oil cylinder 4; the horizontal oil cylinder 4 comprises a cylinder body 41 and a piston rod 42, the horizontal oil cylinder 4 is arranged on the inner sides of the first-order horizontal leg box 1 and the second-order horizontal leg box 2, a first movable supporting mechanism 5 is arranged below the cylinder body 41, and the first movable supporting mechanism 5 comprises a base 51 and a pulley 52; the base 51 is fixedly connected with the inner side of the second-order horizontal leg box 2, the pulley 52 is rotatably connected with a pivot 53 at the top end of the base 51, the pivot 53 is vertical to the cylinder body 41, and a groove matched with the cylinder body 41 is formed in the circumferential direction of the pulley 52.
A second movable supporting mechanism 6 is arranged above the cylinder body 41. The second movable supporting mechanism 6 has the same structure as the first movable supporting mechanism 5; and the second movable supporting mechanism 6 is fixedly connected with the inner side of the second-order horizontal leg box 2.
The pulley 52 is provided with a bearing 54 on the inner side, and the pulley 52 is rotatably connected with the pivot 53 through the bearing 54.
The end of the cylinder body 41 is hinged with the inner side of the first-order horizontal leg box 1, and the end of the piston rod 42 is hinged with the inner side of the second-order horizontal leg box 2.
When the hydraulic system works, the pulley 52 supports support the horizontal oil cylinder 4 in the movement process, so that the phenomenon that the oil cylinder sinks is prevented, the problems that the cylinder body 41 and the piston rod 42 are easy to bend, a sealing element is easy to wear, hydraulic oil leaks and the like are solved, and the safety and the reliability of the work of the hydraulic system are further ensured;
the foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the embodiments and descriptions herein to illustrate the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents.
In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "center", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the scope of the present invention.
Claims (4)
1. An anti-sinking chassis supporting leg of a horizontal oil cylinder comprises a first-order horizontal supporting leg box, a second-order horizontal supporting leg box and a vertical supporting leg; one end of the second-order horizontal supporting leg box is connected with the vertical supporting leg, the other end of the second-order horizontal supporting leg box is sleeved on the inner side of the first-order horizontal supporting leg box, and the second-order horizontal supporting leg box and the first-order horizontal supporting leg box move relatively through the extension and contraction of the horizontal oil cylinder; horizontal cylinder includes cylinder body and piston rod, its characterized in that: the horizontal oil cylinder is arranged on the inner sides of the first-order horizontal supporting leg box and the second-order horizontal supporting leg box, a first movable supporting mechanism is arranged below the cylinder body, and the first movable supporting mechanism comprises a base and a pulley; the base is fixedly connected with the inner side of the second-order horizontal supporting leg box, the pulley is rotatably connected with a pivot at the top end of the base, the pivot is perpendicular to the cylinder body, and grooves matched with the cylinder body are formed in the circumferential direction of the pulley.
2. The horizontal cylinder sinking-preventing underframe leg as recited in claim 1, wherein: a second movable supporting mechanism is arranged above the cylinder body; and the second movable supporting mechanism is fixedly connected with the inner side of the second-order horizontal leg box.
3. The horizontal cylinder sinking-preventing underframe leg as recited in claim 1, wherein: and a bearing is arranged on the inner side of the pulley, and the pulley is rotatably connected with the pivot through the bearing.
4. The horizontal cylinder sinking-preventing underframe leg as recited in claim 1, wherein: the end of the cylinder body is hinged with the inner side of the first-order horizontal supporting leg box, and the end of the piston rod is hinged with the inner side of the second-order horizontal supporting leg box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921186622.2U CN210214634U (en) | 2019-07-26 | 2019-07-26 | Anti-sinking chassis supporting leg of horizontal oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921186622.2U CN210214634U (en) | 2019-07-26 | 2019-07-26 | Anti-sinking chassis supporting leg of horizontal oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210214634U true CN210214634U (en) | 2020-03-31 |
Family
ID=69916811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921186622.2U Active CN210214634U (en) | 2019-07-26 | 2019-07-26 | Anti-sinking chassis supporting leg of horizontal oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210214634U (en) |
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2019
- 2019-07-26 CN CN201921186622.2U patent/CN210214634U/en active Active
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