CN107253695B - Aerial working equipment and fly arm system thereof - Google Patents
Aerial working equipment and fly arm system thereof Download PDFInfo
- Publication number
- CN107253695B CN107253695B CN201710706619.8A CN201710706619A CN107253695B CN 107253695 B CN107253695 B CN 107253695B CN 201710706619 A CN201710706619 A CN 201710706619A CN 107253695 B CN107253695 B CN 107253695B
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- leveling
- hinged
- arm
- fly
- oil cylinder
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- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000005452 bending Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 37
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
Abstract
The invention discloses a fly arm system of high-altitude operation equipment, which comprises a main arm, a fly arm main body, a platform assembly, an amplitude variation oil cylinder, an amplitude variation connecting mechanism, a leveling oil cylinder and a leveling connecting mechanism, wherein the head end of the amplitude variation oil cylinder is hinged with the main arm, the amplitude variation connecting mechanism is simultaneously hinged with the tail end of the main arm, the tail end of the amplitude variation oil cylinder and the head end of the fly arm main body, the head end of the leveling oil cylinder is hinged with the fly arm main body, the leveling connecting mechanism is simultaneously hinged with the tail end of the fly arm main body, the tail end of the leveling oil cylinder and the bottom end of the platform assembly, a rod cavity of the amplitude variation oil cylinder is communicated with a rod-free cavity of the leveling oil cylinder, and the rod cavity of the amplitude variation oil cylinder is communicated with the rod cavity of the leveling oil cylinder. The lifting space and the height operation range of the platform are wider and larger. The program control of a sensor and an electrical system is avoided, the system structure is simplified, and the safety of personnel is ensured. The fly arm structure is light and handy, and the structural strength stability is good. The invention also discloses aerial working equipment comprising the fly arm system.
Description
Technical Field
The invention relates to the field of aerial work, in particular to a fly arm system of aerial work equipment. In addition, the invention also relates to aerial working equipment comprising the fly arm system.
Background
The application of the high-altitude operation engineering machinery such as the high-altitude operation platform, the high-altitude operation vehicle and the like in production and life is more and more widespread. Work machines for aloft work generally have a work platform for carrying persons or objects to a desired height. The fly arm main body is connected between the main arm and the platform assembly, is a small auxiliary working arm, and can operate the working platform to do small-amplitude up-and-down movement, so that the lifting operation is more accurate and flexible.
In the lifting process, the platform rotates relative to the fly arm, so that the platform always keeps a horizontal state, and the lifting space and the lifting height of the platform are limited due to the small amplitude variation angle of the fly arm due to the limitation of the characteristics of the four-bar mechanism. The fly jib needs to be connected to a leveling system. When the main arm and the fly arm are in amplitude variation, the main arm and the fly arm are in relative linkage, the main arm and the fly arm are ensured by a horizontal sensor, and if the sensor fails, the working platform is inclined, so that the operation comfort level is reduced and the safety of operators is threatened. The fly jib is positioned at a position with higher requirements on structure weight reduction, and the structure has weak side bending resistance and large deformation. The fly jib is sensitive to small displacement of the hinge point of the structure when the upper and lower amplitude changes into place, and is easy to be impacted greatly in the area during operation, so that the comfort of operators is reduced.
Therefore, how to provide a stable and safe fly arm system is a technical problem that a person skilled in the art needs to solve.
Disclosure of Invention
The invention aims to provide a fly arm system of overhead working equipment, which can improve the luffing angle and is stable and safe. Another object of the present invention is to provide an aerial working device comprising the above-mentioned fly jib system, which increases the luffing angle and is stable and safe.
In order to solve the technical problems, the invention provides a fly arm system of high-altitude operation equipment, which comprises a main arm, a fly arm main body, a platform assembly, an amplitude variation oil cylinder, an amplitude variation connecting mechanism, a leveling oil cylinder and a leveling connecting mechanism, wherein the head end of the amplitude variation oil cylinder is hinged with the main arm, the amplitude variation connecting mechanism is simultaneously hinged with the tail end of the main arm, the tail end of the amplitude variation oil cylinder and the head end of the fly arm main body, the head end of the leveling oil cylinder is hinged with the fly arm main body, the tail end of the leveling oil cylinder and the bottom end of the platform assembly, and a rod cavity of the amplitude variation oil cylinder is communicated with a rod cavity of the leveling oil cylinder.
Preferably, the amplitude connecting mechanism comprises a main arm extension part, a fly arm extension part, an amplitude connecting rod and an amplitude two connecting rod, wherein the middle part of the fly arm extension part is fixedly connected with the head end of the fly arm main body, the head end of the main arm extension part is fixedly connected with the tail end of the main arm, the tail end of the main arm extension part is hinged with the head end of the fly arm extension part, the head end of the amplitude two connecting rod is hinged with the tail end of the amplitude cylinder, the tail end of the amplitude two connecting rod is hinged with the tail end of the fly arm extension part, one end of the amplitude connecting rod is hinged with the middle part of the main arm extension part, and the other end of the amplitude connecting rod is hinged with the middle part of the amplitude two connecting rod.
Preferably, the leveling connecting mechanism comprises a main body extension part, a platform extension part, a leveling connecting rod and a leveling two connecting rods, wherein the head end of the main body extension part is fixedly connected with the tail end of the fly arm main body, the tail end of the main body extension part is hinged with the head end of the platform extension part, the tail end of the platform extension part is fixedly connected with the bottom end of the platform assembly, the head end of the leveling two connecting rods is hinged with the tail end of the leveling oil cylinder, the tail end of the leveling two connecting rods is hinged with the middle part of the platform extension part, one end of the leveling connecting rod is hinged with the middle part of the main body extension part, and the other end of the leveling connecting rod is hinged with the middle part of the leveling two connecting rods.
Preferably, the extending end of the amplitude variation oil cylinder is hinged with the head end of the amplitude variation two connecting rod, and the extending end of the leveling oil cylinder is hinged with the head end of the leveling two connecting rod.
Preferably, the amplitude variation oil cylinder is arranged in the tail end of the main arm, and the leveling oil cylinder is arranged in the tail end of the fly arm main body.
Preferably, the middle part of the fly jib main body, the middle part of the amplitude-variable two-connecting rod and the middle part of the leveling two-connecting rod are all provided with bends.
Preferably, the luffing connection mechanism and the leveling connection mechanism are provided with angle detectors.
The invention also provides aerial working equipment, which comprises an arm support and a fly arm system arranged on the arm support, wherein the fly arm system is specifically any one of the fly arm systems.
The invention provides a fly arm system of high-altitude operation equipment, which comprises a main arm, a fly arm main body, a platform assembly, an amplitude variation oil cylinder, an amplitude variation connecting mechanism, a leveling oil cylinder and a leveling connecting mechanism, wherein the head end of the amplitude variation oil cylinder is hinged with the main arm, the amplitude variation connecting mechanism is simultaneously hinged with the tail end of the main arm, the tail end of the amplitude variation oil cylinder and the head end of the fly arm main body, the head end of the leveling oil cylinder is hinged with the fly arm main body, the leveling connecting mechanism is simultaneously hinged with the tail end of the fly arm main body, the tail end of the leveling oil cylinder and the bottom end of the platform assembly, a rod cavity of the amplitude variation oil cylinder is communicated with a rod-free cavity of the leveling oil cylinder, and the rod cavity of the amplitude variation oil cylinder is communicated with the rod cavity of the leveling oil cylinder.
Through the communication mode of the two oil cylinders and the hinged positions of the two connecting mechanisms, large-angle automatic leveling is realized, the amplitude variation angle of the fly jib can reach a large range, and the range and the area of the lifting space and the height operation of the platform are wider and larger. The program control of a sensor and an electrical system is avoided, the system structure is simplified, and the safety of personnel is ensured. The fly arm structure is light and handy, and the structural strength stability is good.
The invention also provides the aerial working device comprising the fly arm system, and the aerial working device has the same technical effects as the fly arm system and is not described in detail herein.
Drawings
FIG. 1 is a schematic view of one embodiment of a fly arm system provided by the present invention;
fig. 2 is a schematic diagram of different operation states of one embodiment of the fly arm system provided by the present invention.
Detailed Description
The invention aims to provide a fly arm system of overhead working equipment, which can improve the luffing angle and is stable and safe. The invention further provides high-altitude operation equipment comprising the fly arm system, which improves the luffing angle and is stable and safe.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of a fly arm system according to the present invention; fig. 2 is a schematic diagram of different operation states of one embodiment of the fly arm system provided by the present invention.
The fly arm system provided by the specific embodiment of the invention comprises a main arm 1, a fly arm main body 2, a platform assembly 3, an amplitude variation oil cylinder 4, an amplitude variation connecting mechanism, a leveling oil cylinder 5 and a leveling connecting mechanism, wherein the head end of the amplitude variation oil cylinder 4 is hinged with the main arm 1, the amplitude variation connecting mechanism is simultaneously hinged with the tail end of the main arm 1, the tail end of the amplitude variation oil cylinder 4 and the head end of the fly arm main body 2, the head end of the leveling oil cylinder 5 is hinged with the fly arm main body 2, the leveling connecting mechanism is simultaneously hinged with the tail end of the fly arm main body 2, the tail end of the leveling oil cylinder 5 and the bottom end of the platform assembly 3, a rod cavity of the amplitude variation oil cylinder 4 is communicated with a no-rod cavity of the leveling oil cylinder 5, and the no-rod cavity of the amplitude variation oil cylinder 4 is communicated with a pressure source. Wherein, one end of each part far away from the platform assembly 3 is a head end, and one end near to the platform assembly 3 is a tail end.
Specifically, the luffing connection mechanism comprises a main arm extension part 6, a fly arm extension part 7, a luffing connecting rod 8 and a luffing two connecting rod 9, wherein the middle part of the fly arm extension part 7 is fixedly connected with the head end of the fly arm main body 2, the head end of the main arm extension part 6 is fixedly connected with the tail end of the main arm 1, the tail end of the main arm extension part 6 is hinged with the head end of the fly arm extension part 7, the hinge point is F, the head end of the luffing two connecting rod 9 is hinged with the tail end of the luffing cylinder 4, the hinge point is B, the head end of the luffing cylinder 4 is hinged with the main arm 1, the hinge point is A, the tail end of the luffing two connecting rod 9 is hinged with the tail end of the fly arm extension part 7, the hinge point is E, one end of the luffing connecting rod 8 is hinged with the middle part of the main arm extension part 6, the hinge point is D, the other end of the luffing connecting rod 8 is hinged with the middle part of the luffing two connecting rod 9, and the hinge point is C. The hinge points A, B, C and E form a variable quadrilateral ABCE, the hinge points C, E, F and D form another variable quadrilateral CEFD, the distance between A and B is changed through the expansion and contraction of the amplitude-variable oil cylinder 4, so that the shape of the quadrilateral ABCE is changed, the shape of the CEFD is changed, the E can rotate around F, and the fly arm main body 2 is rotated, so that the lifting purpose is achieved.
The leveling connection mechanism comprises a main body extension part 10, a platform extension part 11, a leveling connecting rod 12 and a leveling two connecting rod 13, wherein the head end of the main body extension part 10 is fixedly connected with the tail end of the fly arm main body 2, the tail end of the main body extension part 10 is hinged with the head end of the platform extension part 11, the hinge point is M, the tail end of the platform extension part 11 is fixedly connected with the bottom end of the platform assembly 3, the head end of the leveling two connecting rod 13 is hinged with the tail end of the leveling oil cylinder 5, the hinge point is I, the head end of the leveling oil cylinder 5 is hinged with the fly arm main body 2, the hinge point is H, the tail end of the leveling two connecting rod 13 is hinged with the middle part of the main body extension part 10, the hinge point is K, the other end of the leveling connecting rod 12 is hinged with the middle part of the leveling two connecting rod 13, and the hinge point is J. The hinge points H, I, J and K form one variable quadrangular structure HIJK, the hinge points J, L, M and K form another variable quadrangular structure JLMK, the distance between H and I is changed by the extension and retraction of the leveling cylinder 5, so that the shape of the quadrangular HIJK is changed, and the shape of JLMK is changed, so that L can rotate around M, and the platform assembly 3 rotates.
Further, the extending end of the luffing cylinder 4 is hinged with the head end of the luffing two connecting rods 9, and the extending end of the leveling cylinder 5 is hinged with the head end of the leveling two connecting rods 13, or the control method is adjusted by reverse connection.
Because the structures of the two quadrangles of ABCE and CEFD are similar to the structures of the two quadrangles of HIJK and JLMK, and because of the communication mode of the two cylinders, a series connection is formed, when the amplitude cylinder 4 stretches out, hydraulic oil in a rod cavity of the amplitude cylinder 4 can enter a rodless cavity of the leveling cylinder 5, the volume ratio of the amplitude cylinder 4 is consistent, the stretching quantity of the amplitude cylinder 4 and the leveling cylinder 5 is the same, and because the quadrangles are similar in structure, the amplitude angle of the amplitude cylinder 4 stretching out to drive the fly arm main body 2 is equal to the rotation angle of the leveling cylinder 5 stretching out to drive the platform assembly 3, the platform assembly 3 can automatically and always keep horizontal when the fly arm main body 2 rotates, automatic leveling is realized, and the principle is consistent when the cylinders retract.
The extension parts can be arranged integrally with the corresponding arm support or in a split mode, bending is required to be arranged in the middle of the fly arm main body 2, the middle of the amplitude-variable two-connecting rod 9 and the middle of the leveling two-connecting rod 13, the length of each rod piece is controlled, and the size and the shape of each part can be adjusted according to the situation, so that the functions are realized.
The variable amplitude connecting mechanism and the leveling connecting mechanism with other structures can be adopted, and the hinge points can form similar quadrilateral structures.
Through the communication mode of the two oil cylinders and the hinged positions of the two connecting mechanisms, large-angle automatic leveling is realized, the amplitude variation angle of the fly arm main body 2 can reach a large range, and the range and the area of the lifting space and the height operation of the platform assembly 3 are wider and larger. The program control of a sensor and an electrical system is avoided, the system structure is simplified, and the safety of personnel is ensured. The fly arm main body 2 has light structure and good structural strength stability. Can be folded back to the lower part of the main arm 1, can change amplitude in a larger range, and does not occupy the whole vehicle length.
In order to further improve the safety of the equipment, the amplitude cylinder 4 is arranged in the tail end of the main arm 1, and the leveling cylinder 5 is arranged in the tail end of the fly arm main body 2.
On the basis of the fly jib system provided by the specific embodiments, the angle detectors are arranged on the luffing connecting mechanism and the leveling connecting mechanism, so that the running angle can be detected, and the stability and the safety are further improved.
In addition to the above-mentioned fly arm system, the specific embodiment of the present invention further provides an aerial working device including the above-mentioned fly arm system, and the structure of other parts of the aerial working device is referred to the prior art, and will not be described herein.
The aerial working device and the fly arm system thereof provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (2)
1. The fly arm system of the aerial working equipment is characterized by comprising a main arm (1), a fly arm main body (2), a platform assembly (3), a luffing cylinder (4), a luffing connection mechanism, a leveling cylinder (5) and a leveling connection mechanism, wherein the head end of the luffing cylinder (4) is hinged with the main arm (1), the luffing connection mechanism is simultaneously hinged with the tail end of the main arm (1), the tail end of the luffing cylinder (4) and the head end of the fly arm main body (2), the head end of the leveling cylinder (5) is hinged with the fly arm main body (2), the leveling connection mechanism is simultaneously hinged with the tail end of the fly arm main body (2), the tail end of the leveling cylinder (5) and the bottom end of the platform assembly (3), and a rod cavity of the luffing cylinder (4) is communicated with a rodless cavity of the leveling cylinder (5), and a rod cavity of the luffing cylinder (4) is communicated with the rod cavity of the leveling cylinder (5);
the luffing connecting mechanism comprises a main arm extension part (6), a fly arm extension part (7), a luffing connecting rod (8) and a luffing two-connecting rod (9), wherein the middle part of the fly arm extension part (7) is fixedly connected with the head end of the fly arm main body (2), the head end of the main arm extension part (6) is fixedly connected with the tail end of the main arm (1), the tail end of the main arm extension part (6) is hinged with the head end of the fly arm extension part (7), the head end of the luffing two-connecting rod (9) is hinged with the tail end of the luffing oil cylinder (4), the tail end of the luffing two-connecting rod (9) is hinged with the tail end of the fly arm extension part (7), one end of the luffing connecting rod (8) is hinged with the middle part of the main arm extension part (6), and the other end of the luffing connecting rod (8) is hinged with the middle part of the luffing two-connecting rod (9);
the leveling connecting mechanism comprises a main body extending part (10), a platform extending part (11), a leveling connecting rod (12) and a leveling two connecting rod (13), wherein the head end of the main body extending part (10) is fixedly connected with the tail end of the fly arm main body (2), the tail end of the main body extending part (10) is hinged with the head end of the platform extending part (11), the tail end of the platform extending part (11) is fixedly connected with the bottom end of the platform assembly (3), the head end of the leveling two connecting rod (13) is hinged with the tail end of the leveling oil cylinder (5), the tail end of the leveling two connecting rod (13) is hinged with the middle part of the platform extending part (11), one end of the leveling connecting rod (12) is hinged with the middle part of the main body extending part (10), and the other end of the leveling connecting rod (12) is hinged with the middle part of the leveling two connecting rod (13);
the extending end of the amplitude changing oil cylinder (4) is hinged with the head end of the amplitude changing two connecting rod (9), and the extending end of the leveling oil cylinder (5) is hinged with the head end of the leveling two connecting rod (13);
the amplitude variation oil cylinder (4) is arranged in the tail end of the main arm (1), and the leveling oil cylinder (5) is arranged in the tail end of the fly arm main body (2);
bending is arranged at the middle part of the fly arm main body (2), the middle part of the amplitude-variable two-connecting rod (9) and the middle part of the leveling two-connecting rod (13);
and angle detectors are arranged on the amplitude variation connecting mechanism and the leveling connecting mechanism.
2. An aerial working device comprising a boom and a fly arm system mounted to the boom, wherein the fly arm system is in particular the fly arm system of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706619.8A CN107253695B (en) | 2017-08-17 | 2017-08-17 | Aerial working equipment and fly arm system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706619.8A CN107253695B (en) | 2017-08-17 | 2017-08-17 | Aerial working equipment and fly arm system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107253695A CN107253695A (en) | 2017-10-17 |
| CN107253695B true CN107253695B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710706619.8A Active CN107253695B (en) | 2017-08-17 | 2017-08-17 | Aerial working equipment and fly arm system thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723268A (en) * | 2020-12-28 | 2021-04-30 | 湖南中联重科智能高空作业机械有限公司 | High-altitude operation machine load and overload determining method and device and high-altitude operation machine |
| CN114457734A (en) * | 2022-04-13 | 2022-05-10 | 徐州徐工环境技术有限公司 | Multi-degree-of-freedom foldable arm support device for wall surface cleaning |
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| Publication number | Publication date |
|---|---|
| CN107253695A (en) | 2017-10-17 |
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