CN111043103B - Hydraulic cylinder with adjustable fulcrum for unfolding and folding - Google Patents
Hydraulic cylinder with adjustable fulcrum for unfolding and folding Download PDFInfo
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- CN111043103B CN111043103B CN201911140385.0A CN201911140385A CN111043103B CN 111043103 B CN111043103 B CN 111043103B CN 201911140385 A CN201911140385 A CN 201911140385A CN 111043103 B CN111043103 B CN 111043103B
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- pin shaft
- shaft hole
- hydraulic cylinder
- plate pin
- hanging plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a hydraulic cylinder with an adjustable fulcrum, and belongs to the technical field of hydraulic cylinders. The hydraulic cylinder comprises a hydraulic cylinder main body and a hanging plate structure, wherein the hydraulic cylinder main body is arranged on the hanging plate structure; the hydraulic cylinder main body comprises a cylinder body and a piston rod, wherein an ear plate is fixed on one side of the cylinder body, and an ear plate pin shaft hole I, an ear plate pin shaft hole II and an ear plate pin shaft hole III are sequentially formed in the ear plate; the lug plate pin shaft hole II is the gravity fulcrum position of the hydraulic cylinder main body; the hanging plate structure comprises a hanging plate, wherein a hanging plate pin shaft hole I, a hanging plate pin shaft hole II and a hanging plate pin shaft hole III are formed in the hanging plate; the hinge pin is used for correspondingly connecting the lug plate pin shaft hole and the plate pin shaft hole. According to the hydraulic cylinder, under the condition that the external connection size and the stroke of the hydraulic cylinder are not increased, the hydraulic cylinder can be easily unfolded in actual use and folded when not in use through the connection design of the host structure and the gravity fulcrum of the hydraulic cylinder, and the height of the cylinder body above the ground can be adjusted.
Description
Technical Field
The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with an adjustable fulcrum.
Background
The leg cylinder is a type of cylinder commonly used in construction machinery. The work function of the device is to support the host. The gravity of the main machine is required to be borne, and the main machine is an important functional component.
For many hosts, the landing leg hydraulic cylinder can be close to the ground as far as possible during working, so that the maximization of the lifting height of the host can be realized, the maximum lightweight of the hydraulic cylinder under the requirement of the lifting height is met, and the short-distance expansion is also favorable for improving the stability of a piston rod. However, it is desirable that the hydraulic cylinder is not too close to the ground when the main unit is transferred, because this would limit the traveling space of the main unit.
Aiming at the two contradictory requirements, only one reasonable stroke can be used in the prior engineering machinery in a compromise mode, namely, the ground clearance of walking and the lifting height during working are met by properly increasing the ground clearance and the working stroke of a hydraulic cylinder. However, this method has problems:
by increasing the external connection size and the working stroke of the hydraulic cylinder, the great light weight level of the main machine and the stability of the piston rod are inevitably lost, and the light weight loss inevitably increases the production cost of the main machine, which is very unfavorable for the market competitiveness of the main machine.
Disclosure of Invention
In order to solve the technical problem, the invention provides the expansion and contraction hydraulic cylinder with the adjustable fulcrum, which meets different requirements of a host on the ground clearance of the hydraulic cylinder during working and non-working.
The invention is realized by the following technical scheme: a fulcrum-adjustable unfolding and folding hydraulic cylinder comprises a hydraulic cylinder main body and a hanging plate structure, wherein the hydraulic cylinder main body is arranged on the hanging plate structure; the hydraulic cylinder main body comprises a cylinder body and a piston rod, an ear plate is fixed on one side of the cylinder body, and an ear plate pin shaft hole I, an ear plate pin shaft hole II and an ear plate pin shaft hole III are sequentially formed in the ear plate; the lug plate pin shaft hole I, the lug plate pin shaft hole II and the lug plate pin shaft hole III are arranged along the axial direction of the cylinder body, and the lug plate pin shaft hole II is the gravity fulcrum position of the hydraulic cylinder main body; the hanging plate structure comprises a hanging plate, and a hanging plate pin shaft hole I, a hanging plate pin shaft hole II and a hanging plate pin shaft hole III are formed in the hanging plate; the hanging plate pin shaft hole I, the hanging plate pin shaft hole II and the hanging plate pin shaft hole III are arranged in a right-angle position; still including being used for with otic placode round pin shaft hole I, otic placode round pin shaft hole II, otic placode round pin shaft hole III and board round pin shaft hole I, link plate round pin shaft hole II, link plate round pin shaft hole III correspond the round pin axle of being connected.
It further comprises the following steps: an oil pipe and a valve seat assembly connected with the oil pipe are fixed on the side face of the cylinder body, and the oil pipe and the valve seat assembly are opposite to the lug plate.
And a lifting lug is fixed at the upper end of the cylinder body.
Compared with the prior art, the invention has the beneficial effects that:
1. the ear plate pin shaft holes are arranged in a straight line, and the hanging plate pin shaft holes are arranged at right angles, so that the height of the cylinder body above the ground can be adjusted, and the cylinder body can be adjusted in a horizontal and vertical state;
2. the lug plate pin shaft hole II is positioned at the gravity fulcrum position, and the position of the cylinder body can be easily adjusted by small force, so that the adjustment of different states can be realized;
3. the oil pipe and the valve seat assembly are arranged on one side opposite to the lug plate, so that the collision during adjustment can be avoided.
Drawings
FIG. 1 is a schematic structural diagram of a hydraulic cylinder body of the present invention;
FIG. 2 is a schematic structural view of the hanging plate of the present invention;
FIG. 3 is a schematic view of the working state of the present invention;
FIG. 4 is a schematic view of a transport transition state of the present invention;
in the figure: 1. a hydraulic cylinder main body; 1-1, a cylinder body; 1-2, ear plates; 1-3, an ear plate pin shaft hole I; 1-4, ear plate pin shaft hole II; 1-5, ear plate pin shaft hole III; 1-6, a piston rod; 1-7, a lifting lug; 1-8, oil pipe; 1-9, a valve seat assembly; 2. a hanging plate structure; 2-1, hanging a plate pin shaft hole I; 2-2, hanging a plate pin shaft hole II; 2-3, hanging a plate pin shaft hole III; 2-4, hanging the board; 2-5 and a pin shaft.
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, a hydraulic cylinder with adjustable pivot comprises a hydraulic cylinder main body 1 and a hanging plate structure 2; the hydraulic cylinder body 1 is connected with the hanging plate structure 2 through a pin shaft 2-5, and the hanging plate structure 2 is installed on the main machine.
The hydraulic cylinder main body 1 comprises a cylinder body 1-1 and a piston rod 1-6, and a lifting lug 1-7 is fixed at the upper end of the cylinder body 1-1. An ear plate 1-2 is fixed on one side of the cylinder body 1-1, an oil pipe 1-8 is fixed on the other side of the cylinder body 1-1, the oil pipe 1-8 and the ear plate 1-2 are oppositely fixed on two sides of the cylinder body 1-1, and the end part of the oil pipe 1-8 is connected with a valve seat assembly 1-9;
the ear plate 1-2 is sequentially provided with an ear plate pin shaft hole I1-3, an ear plate pin shaft hole II 1-4 and an ear plate pin shaft hole III 1-5; the lug plate pin shaft holes I1-3, the lug plate pin shaft holes II 1-4 and the lug plate pin shaft holes III 1-5 are arranged along the axial direction of the cylinder body 1-1, and the lug plate pin shaft holes II 1-4 are the gravity fulcrum positions of the hydraulic cylinder main body 1;
the hanging plate structure 2 comprises a hanging plate 2-4, and a hanging plate pin shaft hole I2-1, a hanging plate pin shaft hole II 2-2 and a hanging plate pin shaft hole III 2-3 are formed in the hanging plate 2-4; the hanging plate pin shaft hole I2-1, the hanging plate pin shaft hole II 2-2 and the hanging plate pin shaft hole III 2-3 are arranged in a right-angle position.
As shown in figure 3, the ear plate pin shaft holes II 1-4 are matched with the pin shaft holes II 2-2 of the pin shaft hole hanging plate, and the ear plate pin shaft holes III 1-5 are matched with the pin shaft holes I2-1 of the hanging plate, so that the working state of the host machine can be realized; at this moment, the ground clearance of the hydraulic cylinder can be adjusted by selecting different lug plate pin shaft holes, the requirements of different ground clearances of the hydraulic cylinder are met, and the stability of the host machine is improved.
As shown in figure 4, the pin shaft holes II 1-4 of the lug plates of the pin shaft holes are matched with the pin shaft holes II 2-2 of the hanging plates of the pin shaft holes, the pin shaft holes I1-3 of the lug plates are matched with the pin shaft holes III 2-3 of the hanging plates, and at the moment, the hydraulic cylinder is retracted to realize the state when the host machine is transferred.
This embodiment is under the condition that does not increase pneumatic cylinder external connection size and pneumatic cylinder stroke, through the connection design of host computer structure and pneumatic cylinder gravity fulcrum, realizes that the pneumatic cylinder can easily expand when in actual use, packs up the function when not using. The special engineering problem of different requirements of the main engine on the ground clearance of the hydraulic cylinder during working and non-working is solved. In addition, the design of the gravity fulcrum of the lug plate pin shaft hole II can realize slight manual switching between the states of the figures 3 and 4, and the collision problem during switching can be prevented due to the design of the opposite positions of the oil pipe, the valve seat and the lug plate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a hydraulic cylinder is received in adjustable exhibition of fulcrum which characterized in that: the hydraulic cylinder hanging plate comprises a hydraulic cylinder main body (1) and a hanging plate structure (2), wherein the hydraulic cylinder main body (1) is installed on the hanging plate structure (2), and the hanging plate structure (2) is installed on a main machine;
the hydraulic cylinder main body (1) comprises a cylinder body (1-1) and a piston rod (1-6), an ear plate (1-2) is fixed on one side of the cylinder body (1-1), and an ear plate pin shaft hole I (1-3), an ear plate pin shaft hole II (1-4) and an ear plate pin shaft hole III (1-5) are sequentially formed in the ear plate (1-2); the lug plate pin shaft holes I (1-3), the lug plate pin shaft holes II (1-4) and the lug plate pin shaft holes III (1-5) are arranged along the axial direction of the cylinder body (1-1), and the lug plate pin shaft holes II (1-4) are the gravity fulcrum positions of the hydraulic cylinder main body (1);
the hanging plate structure (2) comprises a hanging plate (2-4), and a hanging plate pin shaft hole I (2-1), a hanging plate pin shaft hole II (2-2) and a hanging plate pin shaft hole III (2-3) are formed in the hanging plate (2-4); the hanging plate pin shaft hole I (2-1), the hanging plate pin shaft hole II (2-2) and the hanging plate pin shaft hole III (2-3) are arranged in a right-angle position;
the hanging plate pin shaft structure further comprises a pin shaft (2-5) which is used for correspondingly connecting the ear plate pin shaft hole I (1-3), the ear plate pin shaft hole II (1-4) and the ear plate pin shaft hole III (1-5) with the hanging plate pin shaft hole I (2-1), the hanging plate pin shaft hole II (2-2) and the hanging plate pin shaft hole III (2-3);
an oil pipe (1-8) and a valve seat assembly (1-9) connected with the oil pipe (1-8) are fixed on the side face of the cylinder body (1-1), and the oil pipe (1-8) and the valve seat assembly (1-9) are opposite to the lug plate (1-2).
2. The hydraulic cylinder capable of adjusting the fulcrum according to claim 1, wherein: lifting lugs (1-7) are fixed at the upper end of the cylinder body (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911140385.0A CN111043103B (en) | 2019-11-20 | 2019-11-20 | Hydraulic cylinder with adjustable fulcrum for unfolding and folding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911140385.0A CN111043103B (en) | 2019-11-20 | 2019-11-20 | Hydraulic cylinder with adjustable fulcrum for unfolding and folding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111043103A CN111043103A (en) | 2020-04-21 |
| CN111043103B true CN111043103B (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911140385.0A Active CN111043103B (en) | 2019-11-20 | 2019-11-20 | Hydraulic cylinder with adjustable fulcrum for unfolding and folding |
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| Country | Link |
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| CN (1) | CN111043103B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206148863U (en) * | 2016-11-21 | 2017-05-03 | 国网四川省电力公司达州供电公司 | Cable head production and test tool frame |
| CN109340212A (en) * | 2018-12-03 | 2019-02-15 | 徐州徐工液压件有限公司 | A kind of chute type keeps off stroke hanging plate landing leg hydraulic cylinder more |
-
2019
- 2019-11-20 CN CN201911140385.0A patent/CN111043103B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206148863U (en) * | 2016-11-21 | 2017-05-03 | 国网四川省电力公司达州供电公司 | Cable head production and test tool frame |
| CN109340212A (en) * | 2018-12-03 | 2019-02-15 | 徐州徐工液压件有限公司 | A kind of chute type keeps off stroke hanging plate landing leg hydraulic cylinder more |
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| Publication number | Publication date |
|---|---|
| CN111043103A (en) | 2020-04-21 |
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