CN213323350U - Supporting leg unfolding and folding chassis and engineering machinery - Google Patents
Supporting leg unfolding and folding chassis and engineering machinery Download PDFInfo
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- CN213323350U CN213323350U CN202022459732.0U CN202022459732U CN213323350U CN 213323350 U CN213323350 U CN 213323350U CN 202022459732 U CN202022459732 U CN 202022459732U CN 213323350 U CN213323350 U CN 213323350U
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Abstract
The utility model discloses a supporting leg unfolding and folding chassis and an engineering machine, wherein the supporting leg unfolding and folding chassis comprises a chassis frame, a plurality of supporting leg frame groups, a tire frame, a plurality of telescopic driving devices and tires; each support leg group comprises an inner support leg frame and an outer support leg frame, wherein the inner support leg frame and the outer support leg frame are arranged in parallel and are perpendicular to the plane of the chassis frame; one end of the telescopic driving device is hinged on the chassis frame, and the other end of the telescopic driving device is hinged with the inner supporting leg frame. The utility model provides a landing leg exhibition is received the chassis by the chassis underframe, the tyre bracket, inner branch leg frame and outer branch leg frame have constituted four-bar linkage, under flexible drive arrangement's promotion, inner branch leg frame rotates around the chassis underframe, and then drive outer branch leg frame and tyre bracket synchronous oscillation, the tire on wobbling in-process tyre bracket is unchangeable all the time and need not to carry out adjustment control with the angle of chassis moving direction, only need control flexible drive arrangement's action can, whole control structure and process are simplified greatly, show reduction in production cost.
Description
Technical Field
The utility model relates to a mechanical engineering technical field specifically, relates to a landing leg exhibition is received chassis and engineering machine tool.
Background
The high-altitude operation vehicle is a special vehicle for transporting workers and using equipment to high altitude to install, maintain and clean equipment located at the high altitude, has the advantages of good operation performance, high efficiency and the like compared with the traditional operation modes of building scaffolds, ladders and the like, and is widely applied to the infrastructure industries of electric power, traffic communication and the like at present. In actual operation, in order to ensure that the whole vehicle does not tip over in a working state, the wheel track of the chassis is required to be larger, the wheel track of the chassis of the machine is required to be made into an adjustable structure, the wheel track of the support legs is larger when the support legs are unfolded in operation, and the support legs are folded to reduce the wheel track and occupy no space when the support legs are transported or parked.
In order to solve the problems, as shown in fig. 1, in patent publication No. CN106395699A, an aerial work platform telescopic walking frame is provided, in which four legs 3 are provided on an underframe 2, one end of each leg 3 rotates around a hinge point on the underframe 2, and a telescopic cylinder 1 is provided between the legs at two sides to realize the expansion and contraction of the four legs; meanwhile, the tires 4 at the other ends of the supporting legs synchronously swing in an arc manner to cause deflection of the tires, and in order to ensure that the angles of the tires 4 are not changed, the steering cylinders 5 of the tires 4 are synchronously adjusted to realize normal running. However, in the unfolding and folding mode, the telescopic oil cylinders 1 among the supporting legs and the four steering oil cylinders 4 among the supporting legs and the tires must be controlled to work synchronously, a fine and complex control device is needed, the structure is complex, the price is high, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a landing leg exhibition is received chassis and engineering machine tool aims at solving above-mentioned technical problem.
In order to achieve the above object, the utility model provides a landing leg exhibition is received the chassis and is included:
a chassis frame;
the supporting leg frame set comprises an inner supporting leg frame and an outer supporting leg frame, the inner supporting leg frame and the outer supporting leg frame are arranged in parallel and are perpendicular to the plane of the chassis frame, and one end of the inner supporting leg frame and one end of the outer supporting leg frame are respectively pivoted on the chassis frame;
a plurality of telescopic driving devices, wherein one end of each telescopic driving device is hinged on the chassis frame, and the other end of each telescopic driving device is hinged with the inner supporting leg frame;
the tyre frame is respectively pivoted with the other end of the inner supporting leg frame and the other end of the outer supporting leg frame and is parallel to the central axis of the chassis frame;
the tire is pivoted on the tire frame.
Preferably, the support leg rack assembly further comprises a fixing shaft, and the fixing shaft penetrates through the chassis frame and the support leg rack assembly.
Preferably, the tire frame further comprises a connecting shaft, and the connecting shaft is arranged through the leg frame group and the tire frame.
Preferably, the tire further comprises steering oil cylinders, and the steering oil cylinders are respectively connected with the tire frame and the tire.
Preferably, the leg expanding and retracting chassis comprises four leg frame groups and four telescopic driving devices, and the telescopic driving devices are respectively and evenly arranged on two sides of the chassis frame.
Preferably, the two telescopic driving devices arranged on the same side are arranged on the chassis frame in a crossed manner.
Preferably, the chassis frame further comprises a positioning pin shaft, pin shaft holes are correspondingly formed in the inner supporting leg frame, the outer supporting leg frame and the chassis frame, and the positioning pin shaft is matched with the pin shaft holes.
Preferably, the telescopic driving device is one of a hydraulic oil cylinder, an air cylinder and a gear rack mechanism.
The utility model also provides an engineering machine tool, including flexible arm and landing leg exhibition receipts chassis, landing leg exhibition receipts chassis is as above-mentioned landing leg exhibition receipts chassis, flexible arm sets up on the landing leg exhibition receipts chassis.
In the technical scheme of the utility model, the supporting leg unfolding and folding chassis comprises a chassis frame, a plurality of supporting leg frame groups, a tyre frame, a plurality of telescopic driving devices and tyres; each supporting leg group comprises an inner supporting leg frame and an outer supporting leg frame, the inner supporting leg frame and the outer supporting leg frame are arranged in parallel and are perpendicular to the plane where the chassis frame is located, and one end of the inner supporting leg frame and one end of the outer supporting leg frame are respectively pivoted on the chassis frame; the tyre frame is respectively pivoted with the other end of the inner supporting leg frame and the other end of the outer supporting leg frame; one end of the telescopic driving device is hinged on the chassis frame, and the other end of the telescopic driving device is hinged with the inner supporting leg frame. The utility model provides a landing leg exhibition is received chassis and is based on parallelogram link mechanism's principle, by the chassis underframe, the tyre bracket, inner support leg frame and outer support leg frame have constituted four-bar linkage, under flexible drive arrangement's promotion, inner support leg frame rotates around the chassis underframe, and then drive outer support leg frame and tyre bracket synchronous oscillation, the tire on wobbling in-process tyre bracket is unchangeable all the time and need not to carry out adjustment control with chassis moving direction's angle, only need control flexible drive arrangement's action can, whole control structure and process are simplified greatly, can show reduction in production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a prior art retractable walking frame;
fig. 2 is a disassembled schematic view of a part of the structure of an embodiment of the supporting leg unfolding and folding chassis of the present invention;
fig. 3 is a schematic structural view of the supporting leg foldable chassis of the present invention in a folded state;
fig. 4 is a schematic structural view of an expanded state of an embodiment of the supporting leg unfolding and folding chassis of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
40 | Tyre for vehicle wheels |
| 2 | |
51 | Inner supporting leg frame |
| 3 | Supporting |
52 | Outer supporting |
| 4 | Tyre for |
60 | Fixed |
| 5 | |
70 | Connecting |
| 10 | |
80 | |
| 20 | |
90 | |
| 30 | Tyre frame |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides a landing leg exhibition is received chassis.
Referring to fig. 2 to 4, in an embodiment of the present invention, the outrigger foldable chassis includes a chassis frame 10, a plurality of outrigger frame sets, a plurality of telescopic driving devices 20, a tire frame 30 and a tire 40. Wherein each of the leg support sets comprises an inner leg support 51 and an outer leg support 52, the inner leg support 51 and the outer leg support 52 are arranged in parallel and are perpendicular to the plane of the chassis frame 10, and one end of the inner leg support 51 and one end of the outer leg support 52 are respectively pivoted on the chassis frame 10; one end of the telescopic driving device 20 is hinged on the chassis frame 10, and the other end is hinged on the inner supporting leg frame 51; the tire frame 30 is respectively pivoted with the other end of the inner supporting leg 51 and the other end of the outer supporting leg 52, and the tire frame 30 is parallel to the central axis of the chassis frame 10; the tire 40 is pivotally attached to the tire frame 30.
The supporting leg unfolding and folding chassis in the embodiment is based on the principle of a parallelogram link mechanism, and the other two opposite sides are still always kept parallel while the two opposite sides are swung. Specifically, the chassis frame 10, the tire frame 30, the inner leg support 51 and the outer leg support 52 form a parallelogram four-bar linkage mechanism, under the pushing of the telescopic driving device 20, the inner leg support 51 rotates around the chassis frame 10, so as to drive the outer leg support 52 and the tire frame 30 to synchronously swing, wherein the inner leg support 51 and the outer leg support 52 swing as two opposite sides in the parallelogram and still keep parallel, the chassis frame 10 and the tire frame 30 also keep parallel as the other two opposite sides in the parallelogram in the swinging process, and particularly, the angle between the tire 40 on the tire frame 30 and the chassis moving direction is always unchanged in the swinging process without adjustment and control. Compared with the prior similar technology in fig. 1, the embodiment only needs to control the telescopic driving device 20, and does not need to synchronously control the swing angle of the tire 40, so that the whole control structure and process are greatly simplified, and the production cost can be obviously reduced.
Specifically, as shown in fig. 2, the leg-expanding chassis in this embodiment further includes a fixing shaft 60 and a connecting shaft 70, the fixing shaft 60 is inserted into the chassis frame 10 and the leg frame set, and the connecting shaft 70 is inserted into the leg frame set and the tire frame 30.
As a preferred embodiment, the support leg folding and unfolding chassis further comprises a steering cylinder 80, the steering cylinder 80 is respectively connected with the tire frame 30 and the tire 40, and the steering cylinder 80 is used for controlling the swing angle of the tire 40 when the chassis is steered, so that the turning radius of the chassis can be greatly reduced, and the site adaptability of the chassis is improved.
As a preferred embodiment, the leg-expanding chassis comprises four leg frame sets and four corresponding telescopic driving devices 20, wherein the telescopic driving devices 20 are respectively and equally arranged on two sides of the chassis frame 10.
Further, the two telescopic driving devices 20 arranged on the same side are crosswise arranged on the chassis frame 10, as shown in fig. 2, the two telescopic driving devices 20 on the same side of the chassis frame 10 are crosswise hinged on the chassis frame 10, that is, the left telescopic driving device 20 is connected with the right inner supporting leg frame 51, and the right telescopic driving device 20 is connected with the left inner supporting leg frame 51, similar to the X-shaped structural layout, so that the whole structure can be more compact.
As a preferred embodiment, the supporting leg unfolding and folding chassis further includes a positioning pin shaft 90, pin shaft holes are correspondingly formed on the inner supporting leg 51, the outer supporting leg 52 and the chassis frame 10, and the positioning pin shaft 90 is adapted to the pin shaft holes and used for fixing the supporting leg assembly when the supporting leg assembly is folded and unfolded in place.
Specifically, the telescopic driving device 20 is one of a hydraulic cylinder, an air cylinder, and a rack and pinion mechanism. In the embodiment, a currently common hydraulic oil cylinder is preferably used as the telescopic driving device 20, and the technology is mature and stable.
The utility model also provides an engineering machine tool, including flexible arm and landing leg exhibition receipts chassis, landing leg exhibition receipts chassis be as above-mentioned landing leg exhibition receipts chassis, flexible arm sets up on the landing leg exhibition receipts chassis. The specific structure of the support leg folding chassis refers to the above embodiments, and since the engineering machine adopts all the technical solutions of all the above embodiments, the engineering machine at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A leg spreading and retracting chassis, comprising:
a chassis frame;
the supporting leg frame set comprises an inner supporting leg frame and an outer supporting leg frame, the inner supporting leg frame and the outer supporting leg frame are arranged in parallel and are perpendicular to the plane of the chassis frame, and one end of the inner supporting leg frame and one end of the outer supporting leg frame are respectively pivoted on the chassis frame;
a plurality of telescopic driving devices, wherein one end of each telescopic driving device is hinged on the chassis frame, and the other end of each telescopic driving device is hinged with the inner supporting leg frame;
the tyre frame is respectively pivoted with the other end of the inner supporting leg frame and the other end of the outer supporting leg frame and is parallel to the central axis of the chassis frame;
the tire is pivoted on the tire frame.
2. The leg expanding and retracting chassis of claim 1, further comprising a fixed shaft, wherein the fixed shaft is inserted into the chassis frame and the leg frame set.
3. The leg expanding and contracting chassis according to claim 1, further comprising a connecting shaft, wherein the connecting shaft is arranged through the leg frame set and the tire frame.
4. The leg expanding and retracting chassis of claim 1, further comprising steering cylinders respectively connected to the tire frame and the tire.
5. The leg spreading and retracting chassis of claim 1, comprising four leg rest groups and four telescopic driving means, the telescopic driving means being respectively provided on both sides of the chassis frame on average.
6. The leg spreading and retracting chassis of claim 5, wherein the two telescopic driving devices disposed at the same side are disposed across the chassis frame.
7. The leg expanding and retracting chassis according to claim 1, further comprising a positioning pin shaft, wherein the inner leg support, the outer leg support and the chassis frame are correspondingly provided with pin shaft holes, and the positioning pin shaft is matched with the pin shaft holes.
8. The leg spreading chassis according to any one of claims 1 to 7, wherein the telescopic driving means is one of a hydraulic cylinder, an air cylinder, a rack and pinion mechanism.
9. An engineering machine, comprising a telescopic mechanical arm and a support leg unfolding and folding chassis, wherein the support leg unfolding and folding chassis is the support leg unfolding and folding chassis as claimed in any one of claims 1 to 8, and the telescopic mechanical arm is arranged on the support leg unfolding and folding chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459732.0U CN213323350U (en) | 2020-10-30 | 2020-10-30 | Supporting leg unfolding and folding chassis and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022459732.0U CN213323350U (en) | 2020-10-30 | 2020-10-30 | Supporting leg unfolding and folding chassis and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213323350U true CN213323350U (en) | 2021-06-01 |
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ID=76076003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022459732.0U Active CN213323350U (en) | 2020-10-30 | 2020-10-30 | Supporting leg unfolding and folding chassis and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213323350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435477A (en) * | 2022-04-11 | 2022-05-06 | 临工集团济南重机有限公司 | Aerial work platform control method and aerial work platform |
-
2020
- 2020-10-30 CN CN202022459732.0U patent/CN213323350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435477A (en) * | 2022-04-11 | 2022-05-06 | 临工集团济南重机有限公司 | Aerial work platform control method and aerial work platform |
| CN114435477B (en) * | 2022-04-11 | 2022-07-05 | 临工集团济南重机有限公司 | Aerial work platform control method and aerial work platform |
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