CN217921361U - High-altitude operation car with free arm - Google Patents
High-altitude operation car with free arm Download PDFInfo
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- CN217921361U CN217921361U CN202221913347.1U CN202221913347U CN217921361U CN 217921361 U CN217921361 U CN 217921361U CN 202221913347 U CN202221913347 U CN 202221913347U CN 217921361 U CN217921361 U CN 217921361U
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Abstract
The utility model provides an aerial working car with free arm relates to aerial working car technical field. The high-altitude operation vehicle with the free arm roughly lifts a working platform to the position near the height of a high-altitude area to be operated through the expansion and the lifting of an arm frame, and then adjusts the swinging angle of an arm frame seat relative to a final-stage arm section of the arm frame through the expansion and the contraction of a first oil cylinder, wherein the arm frame seat, an upper arm, a lower arm and a platform seat form a four-link structure, the swinging angles of the upper arm, the lower arm and the platform seat relative to the arm frame seat are adjusted through the expansion and the contraction of a second oil cylinder, so that the working platform is driven to switch the position accurately, and the flexibility of the switching position of the working platform is higher; compared with the increase of the number of sections of the arm support, the free arm assembly is arranged at the tail section of the arm support, so that the working height of the overhead working truck is increased, and the overall weight of the truck is reduced; when the overhead working truck is in a non-working state, the upper arm and the lower arm can be positioned above or below the arm support, so that the increase of the whole length of the truck is limited.
Description
Technical Field
The utility model belongs to the technical field of the high altitude construction car technique and specifically relates to a high altitude construction car with free arm is related to.
Background
Currently, aerial work vehicles are increasingly used for aerial work, and workers, equipment, materials and the like are transported to an aerial position by the aerial work vehicles for work construction. The aerial working platform is arranged at the tail end of a final-stage arm of the arm support, the working platform is transferred to an aerial work area after the arm support is extended and lifted, and the working platform is reset after the arm support is retracted and falls down. The high-altitude operation vehicle realizes the switching of the position of the working platform by means of the extension and the lifting of the arm support, and the flexibility of the switching position of the working platform is not high. In addition, in order to increase the working height, the conventional overhead working truck increases the number of sections of the arm support, but also increases the overall weight and the overall length of the truck. The current blue-board vehicle requires the total mass of the vehicle to be below 4500KG, and the length of the vehicle body is below 6 m. Therefore, the current high-altitude operation vehicle can only be hung with yellow tags and is difficult to be hung with blue tags, so that the road traffic of the high-altitude operation vehicle is more limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an aerial working car with free arm sets up the flexibility of free arm subassembly in order to improve work platform switching position at the end arm of cantilever crane, makes the whole weight that subtracts of vehicle and restricts whole length.
In order to achieve the above object, the present invention adopts the following technical solutions:
an overhead working truck with a free arm comprises an automobile chassis, an arm support, a free arm assembly and a working platform;
the arm support comprises a plurality of stage arms, and the stage arms can relatively extend or retract;
the first-stage knuckle arm of the arm support is connected with the automobile chassis, and the last-stage knuckle arm of the arm support is provided with the free arm assembly;
the free arm assembly comprises an arm frame seat, a free arm, a platform seat, a first oil cylinder and a second oil cylinder;
the last-stage arm of the arm support is hinged to the rear end of the arm support seat through a hinge, one end of a first oil cylinder is hinged to the last-stage arm of the arm support through a hinge, and the other end of the first oil cylinder is hinged to the arm support seat through a hinge;
one end of the free arm is hinged with the front end of the hinge arm frame seat through a hinge, the other end of the free arm is hinged with the rear end of the platform seat through a hinge, one end of the second oil cylinder is hinged with the hinge arm frame seat through a hinge, and the other end of the second oil cylinder is hinged with the free arm through a hinge;
the working platform is arranged on the platform seat.
Preferably, the free arm comprises an upper arm and a lower arm, one end of the upper arm is hinged to the upper part of the front end of the arm base through a hinge, the other end of the upper arm is hinged to the upper part of the rear end of the platform base through a hinge, one end of the lower arm is hinged to the lower part of the front end of the arm base through a hinge, and the other end of the lower arm is hinged to the lower part of the rear end of the platform base through a hinge; one end of the second oil cylinder is hinged with the arm frame base through a hinge, and the other end of the second oil cylinder is hinged with the upper arm or the lower arm through a hinge.
Preferably, the second oil cylinder acts to drive the free arm to be positioned above or below the arm support.
Preferably, the automobile chassis support device further comprises an arm support frame, wherein the arm support frame is arranged on the automobile chassis, and a first-stage knuckle arm of the arm support is hinged to the arm support frame.
Preferably, the arm support can extend towards the rear lower part of the automobile chassis, and the free arm is positioned above the arm support.
Preferably, the arm support can extend towards the rear of the automobile chassis, and the free arm is positioned below the arm support.
Preferably, the lifting device further comprises a lifting oil cylinder, one end of the lifting oil cylinder is hinged to the arm support frame through a hinge, and the other end of the lifting oil cylinder is hinged to a first-stage knuckle arm of the arm support through a hinge.
Preferably, the device also comprises a rotary table, wherein the rotary table is rotatably connected to the automobile chassis, and the arm support frame is arranged on the rotary table.
Preferably, the free arm assembly further comprises a transition seat, the transition seat is arranged at the tail end of the final-stage arm of the arm support, and one end of the first oil cylinder is hinged to the transition seat through a hinge.
Preferably, the device also comprises a slewing bearing, and the platform base is connected with the working platform through the slewing bearing.
The utility model has the beneficial technical effects that:
the utility model discloses an aerial working car with free arm, through the flexible of cantilever crane, go up and down in order to lift work platform roughly near the high altitude region of waiting to work of waiting, the swing angle of cantilever crane seat relative to the last festival arm of cantilever crane is adjusted in the flexible of rethread first hydro-cylinder, cantilever crane seat, upper arm, underarm and pedestal constitute four-bar linkage, adjust the swing angle of upper arm, underarm and platform seat relative to cantilever crane seat through the flexible of second hydro-cylinder, and then drive work platform switch position more accurately, work platform switches the flexibility of position higher; compared with the increase of the number of sections of the arm support, the free arm assembly is arranged at the tail section of the arm support, so that the working height of the overhead working truck is increased, and the overall weight of the truck is reduced; when the overhead working truck is in a non-working state, the upper arm and the lower arm can be positioned above or below the arm support, so that the increase of the whole length of the truck is limited.
Drawings
Fig. 1 is a schematic structural view of an aerial cage with a free arm in a non-operation state according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an aerial work platform with a free arm according to embodiment 1 of the present invention at an initial position of an operation state;
fig. 3 is a schematic view of a partial structure of an aerial cage with a free arm according to embodiment 1 of the present invention in an operating state;
fig. 4 is a schematic view of a partial structure of an aerial work platform with a free arm according to embodiment 1 of the present invention in an operation state.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. Certain embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1:
in an embodiment of the present invention, an aerial cage with a free arm is provided, please refer to fig. 1 to 4.
An overhead working truck with a free arm comprises a truck chassis 1, an arm support 2, a free arm assembly and a working platform 3.
The arm support 2 comprises a plurality of stage section arms, the stage section arms are sequentially nested, and the stage section arms can relatively extend out or retract under the driving of the arm support traction mechanism.
The first-stage knuckle arm of the arm support 2 is connected with the automobile chassis 1, and the last-stage knuckle arm of the arm support 2 is provided with a free arm assembly.
The free arm assembly comprises an arm frame seat 41, a free arm, a platform seat 43, a first oil cylinder 441 and a second oil cylinder 442;
the last-stage arm of the boom 2 is hinged to the rear end of the boom base 41 through a hinge, one end of the first oil cylinder 441 is hinged to the last-stage arm of the boom 2 through a hinge, and the other end of the first oil cylinder 441 is hinged to the boom base 41 through a hinge. The transition seat 45 is arranged at the tail end of the last-stage arm section of the arm support 2, the extending length of the last-stage arm section of the arm support 2 is prolonged by the transition seat 45, and one end of the first oil cylinder 441 is hinged to the tail end of the transition seat 45 through a hinge.
The telescopic end of the first cylinder 441 is telescopic with respect to the cylinder end to drive the boom base 41 to swing with respect to the transition base 45 (the final pitch arm of the boom 2).
One end of the free arm is hinged to the front end of the platform base 43 via a hinge, the other end of the free arm is hinged to the rear end of the platform base 43 via a hinge, one end of the second cylinder 442 is hinged to the platform base 41 via a hinge, and the other end of the second cylinder 442 is hinged to the free arm via a hinge.
The free arm may further include an upper arm 421 and a lower arm 422, the upper arm 421 is not limited to a rod, and the lower arm 422 is not limited to a rod. One end of the upper arm 421 is hinged to the upper part of the front end of the arm base 41 through a hinge, the other end of the upper arm 421 is hinged to the upper part of the rear end of the platform base 43 through a hinge, one end of the lower arm 422 is hinged to the lower part of the front end of the arm base 41 through a hinge, and the other end of the lower arm 422 is hinged to the lower part of the rear end of the platform base 43 through a hinge. In this way, the arm rest base 41, the upper arm 421, the lower arm 422, and the platform base 43 form a four-bar linkage structure in the form of a parallelogram, so that the platform base 43 can swing flexibly with respect to the arm rest base 41. One end of the second cylinder 442 is hinged to the arm rest 41 via a hinge, and the other end of the second cylinder 442 is hinged to the upper arm 421 via a hinge.
Wherein, the two ends of the upper arm 421 are provided with arm seats 46, and the two ends of the upper arm 421 are hinged with the arm frame seat 41 and the platform seat 43 through the arm seats 46. Under the condition that the outer dimensions of the arm rest base 41 and the platform base 43 are not increased, the second oil cylinder 442 is prevented from being collided by arranging the second oil cylinder 442 in the space between the upper arm 421 and the lower arm 422 by providing the arm rest 46 to increase the space between the upper arm 421 and the lower arm 422.
The platform base 43 is provided with a working platform 3. Wherein, the platform base 43 is connected to the working platform 3 through the slewing bearing 431 to realize that the working platform 3 rotates relative to the platform base 43 under the driving of the rotation driving mechanism.
The telescopic end of the second cylinder 442 extends relative to the cylinder end to drive the upper arm 421, the lower arm 422 and the platform 43 to swing relative to the arm base 41, so that the platform base 43 drives the working platform 3 to switch positions.
The boom base 41 is driven to swing with respect to the transition base 45 (the final joint arm of the boom 2) by the telescopic end of the first cylinder 441 being telescopic with respect to the cylinder end, and the platform base 43 is driven to swing with respect to the boom base 41 by the telescopic end of the second cylinder 442 being telescopic with respect to the cylinder end. Thus, the first oil cylinder 441 and the second oil cylinder 442 cooperate to increase the swing angle of the platform base 43, so that the platform base 43 drives the work platform 3 to switch the position within a larger swing angle range. The second cylinder 442 moves (the telescopic end extends and retracts relative to the cylinder end) to drive the upper arm 421 and the lower arm 422 to be located above or below the arm support 2.
An arm support frame 11 is arranged on the automobile chassis 1, and a first-level knuckle arm of the arm support 2 is hinged with the arm support frame 11. When the arm support 2 is lifted, the first-stage knuckle arm of the arm support 2 can swing relative to the arm support frame 11; after the boom 2 is lowered and reset, the boom 2 can be placed on the boom support frame 11.
In this embodiment, the boom support 11 extends to the front upper side of the vehicle chassis 1, the overhead working vehicle is in a non-working state, the boom 2 may extend to the rear lower side of the vehicle chassis 1, and the upper arm 421 and the lower arm 422 are located above the boom 2. Thus, the increase of the overall length of the vehicle is restricted in the non-operating state.
One end of the lifting oil cylinder 12 is hinged with the arm support frame 11 through a hinge, and the other end of the lifting oil cylinder 12 is hinged with a first-stage knuckle arm of the arm support 2 through a hinge. The telescopic end of the lifting oil cylinder 12 is telescopic relative to the cylinder body end to drive the arm support 2 to swing relative to the arm support frame 11. The number of the lifting oil cylinders 12 is two, and the left side and the right side of the arm support frame 11 are respectively provided with one lifting oil cylinder 12, so that the lifting oil cylinders 12 can stably support the arm support 2.
The automobile chassis 1 is rotatably connected with a rotary table 13, and the arm support frame 11 is arranged on the rotary table 13. The rotary table 13 rotates relative to the automobile chassis 1 to drive the arm support frame 11 and the arm support 2 to rotate.
Example 2:
the difference between the embodiment and embodiment 1 is that when the aerial work platform is in a non-operation state, the arm support 2 can extend to the rear of the vehicle chassis 1, specifically, the arm support 2 can extend to the rear of the vehicle chassis 1 horizontally or upwards, and the upper arm 421 and the lower arm 422 are located below the arm support 2. Thus, the increase of the overall length of the vehicle is restricted in the non-operating state.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should have a clear understanding of the present invention as an aerial lift vehicle with a free arm. The utility model discloses an aerial working car with free arm, through the flexible of cantilever crane 2, go up and down in order to roughly lift work platform 3 to high altitude near the high altitude area of waiting to work, the swing angle of cantilever crane seat 41 for the last level festival arm of cantilever crane 2 is adjusted in the flexible of rethread first hydro-cylinder 441, cantilever crane seat 41, upper arm 421, lower arm 422 and platform seat 43 constitute four-bar linkage, adjust the swing angle of upper arm 421, lower arm 422 and platform seat 43 for cantilever crane seat 41 through the flexible of second hydro-cylinder 442, and then drive work platform 3 more accurately and switch the position, work platform 3 switches the flexibility of position higher; compared with the increase of the number of the sections of the arm support 2, the free arm assembly is arranged at the tail section of the arm support 2, so that the working height of the overhead working truck is increased, and the overall weight of the truck is reduced; when the overhead working truck is in a non-working state, the upper arm 421 and the lower arm 422 can be positioned above or below the arm support 2, so that the increase of the whole length of the truck is limited.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An aerial lift truck with a free arm, characterized in that: comprises an automobile chassis, an arm support, a free arm component and a working platform;
the arm support comprises a plurality of stage arms, and the stage arms can relatively extend out or retract;
the first-stage knuckle arm of the arm support is connected with the automobile chassis, and the last-stage knuckle arm of the arm support is provided with the free arm component;
the free arm assembly comprises an arm frame seat, a free arm, a platform seat, a first oil cylinder and a second oil cylinder;
the last-stage arm of the arm frame is hinged with the rear end of the arm frame seat through a hinge, one end of a first oil cylinder is hinged with the last-stage arm of the arm frame through a hinge, and the other end of the first oil cylinder is hinged with the arm frame seat through a hinge;
one end of the free arm is hinged with the front end of the arm support seat through a hinge, the other end of the free arm is hinged with the rear end of the platform support seat through a hinge, one end of the second oil cylinder is hinged with the arm support seat through a hinge, and the other end of the second oil cylinder is hinged with the free arm through a hinge;
the working platform is arranged on the platform seat.
2. An aerial lift truck as defined in claim 1 having a free arm, wherein: the free arm comprises an upper arm and a lower arm, one end of the upper arm is hinged to the upper part of the front end of the arm frame seat through a hinge, the other end of the upper arm is hinged to the upper part of the rear end of the platform frame seat through a hinge, one end of the lower arm is hinged to the lower part of the front end of the arm frame seat through a hinge, and the other end of the lower arm is hinged to the lower part of the rear end of the platform frame seat through a hinge; one end of the second oil cylinder is hinged with the arm frame seat through a hinge, and the other end of the second oil cylinder is hinged with the upper arm or the lower arm through a hinge.
3. An aerial lift truck as defined in claim 1 having a free arm, wherein: the second oil cylinder acts to drive the free arm to be positioned above or below the arm support.
4. An aerial lift truck as defined in claim 3 having a free arm, wherein: the automobile chassis is characterized by further comprising an arm support frame, wherein the arm support frame is arranged on the automobile chassis, and a first-level knuckle arm of the arm support is hinged with the arm support frame.
5. An aerial lift truck as defined in claim 4 having a free arm, wherein: the arm support can extend towards the rear lower part of the automobile chassis, and the free arm is positioned above the arm support.
6. An aerial lift truck as defined in claim 4 having a free arm, wherein: the arm support can extend towards the rear of the automobile chassis, and the free arm is positioned below the arm support.
7. An aerial lift truck as defined in claim 4 having a free arm, wherein: the lifting device is characterized by further comprising a lifting oil cylinder, wherein one end of the lifting oil cylinder is hinged to the arm support frame through a hinge, and the other end of the lifting oil cylinder is hinged to a first-stage knuckle arm of the arm support through a hinge.
8. An aerial lift truck as defined in claim 4 having a free arm, wherein: the rotary table is rotatably connected to the automobile chassis, and the arm support frame is arranged on the rotary table.
9. An aerial lift truck as defined in claim 1 having a free arm, wherein: the free arm assembly further comprises a transition seat, the transition seat is arranged at the tail end of a final-stage knuckle arm of the arm support, and one end of the first oil cylinder is hinged to the transition seat through a hinge.
10. An aerial lift truck as defined in claim 1 having a free arm, wherein: still include slewing bearing, the platform seat is connected through slewing bearing work platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221913347.1U CN217921361U (en) | 2022-07-20 | 2022-07-20 | High-altitude operation car with free arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221913347.1U CN217921361U (en) | 2022-07-20 | 2022-07-20 | High-altitude operation car with free arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217921361U true CN217921361U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221913347.1U Active CN217921361U (en) | 2022-07-20 | 2022-07-20 | High-altitude operation car with free arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217921361U (en) |
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2022
- 2022-07-20 CN CN202221913347.1U patent/CN217921361U/en active Active
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