CN203187307U - Supporting leg retraction mechanism controlled by single cylinder of forestry crane - Google Patents
Supporting leg retraction mechanism controlled by single cylinder of forestry crane Download PDFInfo
- Publication number
- CN203187307U CN203187307U CN 201320198871 CN201320198871U CN203187307U CN 203187307 U CN203187307 U CN 203187307U CN 201320198871 CN201320198871 CN 201320198871 CN 201320198871 U CN201320198871 U CN 201320198871U CN 203187307 U CN203187307 U CN 203187307U
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- CN
- China
- Prior art keywords
- supporting leg
- cylinder barrel
- support legs
- horizontal support
- retraction mechanism
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- Expired - Lifetime
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Abstract
The utility model discloses a supporting leg retraction mechanism controlled by a single cylinder of a forestry crane, which belongs to a supporting leg retraction mechanism in engineering machinery. The supporting leg retraction mechanism comprises vertical supporting legs, end covers, horizontal supporting legs, a piston rod, a fixed supporting leg, a cylinder barrel, a supporting plate, pin shafts and retainer rings for the shafts, wherein the cylinder barrel is connected into the fixed supporting leg; one horizontal supporting leg on one side is connected to one end of the cylinder barrel through the piston rod, and one horizontal supporting leg on the other side is connected to the other end of the cylinder barrel through the supporting plate; the vertical supporting legs are connected to the ends of the two horizontal supporting legs through the pin shafts and the retainer rings for the shafts respectively; the end covers are connected to the ends of the horizontal supporting legs. The supporting leg retraction mechanism has the advantages that the horizontal supporting legs on two sides can be controlled to retract through the single cylinder. Compared with a traditional supporting leg retraction structure pushed and pulled manually and a traditional supporting leg retraction structure controlled by double cylinders, the supporting leg retraction mechanism has the advantages that the labor intensity of a user is greatly lightened, and the crane supporting leg structure is more compact; moreover, as one cylinder is reduced, a hydraulic oil circuit is simplified, and the economic cost of the forestry crane is reduced.
Description
Technical field
The utility model relates to a kind of supporting leg telescoping mechanism of construction machinery and equipment, particularly a kind of supporting leg telescoping mechanism of forestry hoisting crane list oil cylinder control.
Background technology
The forestry hoisting crane be at the log of forestry exploitation collect, a kind of special-purpose lorry-mounted crane of classification, handling labor.It is installed on the matching used car chassis, is collectively referred to as the forestry derrick car, be a kind ofly collect lifting, transportation is the new and effective weight-hauling equipment of one.China's Forest Resources is abundant, and forestry occupies very consequence as one of mainstay of the national economy industry in economic development, and the exploitation of forestry and transhipment then become one of the important step the most in the forest development.In the past exploitation form and transporting mode have very strong dependence to weather.
The forestry hoisting crane can be divided into forestry purposes and industrial use by its purposes, but no matter is applicable to that the forestry exploitation still is used for collection and the transhipment of industrial waste goods and materials, and the working environment of forestry hoisting crane is all very abominable.When grasping the log operation or carry out the trade waste collection, must increase the supporting leg span by horizontal support legs and improve job stabilization and safety.At present, the supporting leg stretching structure of forestry hoisting crane mainly contains two kinds, and a kind of is not have hydraulic actuating cylinder, needs the telescopic outrigger by the manpower push-and-pull, and this supporting leg degree of automation is low, has increased user's labour intensity; Another kind is that the both sides horizontal support legs is controlled respectively by two oil cylinders, and this structure has increased the volume of pedestal and the complexity that two oil cylinders have increased financial cost and hydraulic efficiency pressure system.
The utility model content
The purpose of this utility model is the supporting leg telescoping mechanism that the control of a kind of forestry hoisting crane list oil cylinder will be provided, and solves that present forestry crane horizontal supporting leg span is little, the problem of poor stability.
The purpose of this utility model is achieved in that this supporting leg telescoping mechanism comprises: vertical leg, end cap, horizontal support legs, piston rod, fixed supporting leg, cylinder barrel, stay bearing plate, bearing pin and shaft block ring; In fixed supporting leg, be connected with cylinder barrel, end at cylinder barrel is connected by the horizontal support legs of piston rod with a side, the other end at cylinder barrel is connected with the horizontal support legs of opposite side by stay bearing plate, end at two horizontal support legs all is connected with vertical leg respectively with shaft block ring by bearing pin, is connected with end cap in the end of horizontal support legs.
Beneficial effect: owing to adopted such scheme, controlling the flexible of two horizontal support legs by single oil cylinder, the piston rod of oil cylinder is connected with two horizontal support legs by end cap respectively with cylinder barrel, drives two horizontal support legs fore and aft motion when oil cylinder is flexible.End cap is connected respectively on oil cylinder piston bar and the cylinder barrel by bearing pin, and end cap is connected on the horizontal support legs by bolt, and the horizontal support legs in a side that connects cylinder barrel fixedly has stay bearing plate simultaneously, prevents that the long generation of oil cylinder flexible deformation from damaging oil cylinder.Reached the purpose of this utility model.
Advantage: this mechanism can realize the flexible of single oil cylinder control both sides horizontal support legs, with respect to the supporting leg stretching structure that traditional supporting leg stretching structure and two oil cylinder by the manpower push-and-pull are controlled, the labour intensity that has significantly reduced the user makes that simultaneously the hoisting crane leg structure is compacter; And reduced by an oil cylinder, and simplified hydraulic circuit, reduced the financial cost of forestry hoisting crane.
Description of drawings
Fig. 1 is the constructional drawing of the supporting leg telescoping mechanism of the utility model forestry hoisting crane list oil cylinder control.
Among the figure, 1, vertical leg; 2, end cap; 3, horizontal support legs; 4, piston rod; 5, fixed supporting leg; 6, cylinder barrel; 7, stay bearing plate; 8, bearing pin; 9, shaft block ring.
The specific embodiment
Bottom is described in further detail the utility model with specific embodiments by reference to the accompanying drawings.
Embodiment 1: this supporting leg telescoping mechanism comprises: vertical leg 1, end cap 2, horizontal support legs 3, piston rod 4, fixed supporting leg 5, cylinder barrel 6, stay bearing plate 7, bearing pin 8 and shaft block ring 9; In fixed supporting leg 5, be connected with cylinder barrel 6, end at cylinder barrel 6 is connected with the horizontal support legs 3 of a side by piston rod 4, the other end at cylinder barrel 6 is connected with the horizontal support legs 3 of opposite side by stay bearing plate 7, end at two horizontal support legs 3 all is connected with vertical leg 1 respectively with shaft block ring 9 by bearing pin 8, is connected with end cap 2 in the end of horizontal support legs 3.
In Fig. 1, horizontal support legs 3 moves in fixed supporting leg 4, horizontal support legs end, both sides is by bolt end cap 2, two end caps are connected with piston rod with the cylinder barrel of hydraulic actuating cylinder respectively with shaft block ring 9 by bearing pin 8, when hydraulic actuating cylinder stretches, drive horizontal support legs fore and aft motion in fixed supporting leg by end cap.In the horizontal support legs end, be connected with vertical leg 1.For preventing that hydraulic actuating cylinder from than the living flexible deformation of long hair, having stay bearing plate 7 by bolt on the horizontal support legs of cylinder barrel one side, hydraulic actuating cylinder has been played supporting role.
This structure machine has been realized the flexible of single oil cylinder control both sides horizontal support legs, with respect to the supporting leg stretching structure that traditional supporting leg stretching structure and two oil cylinder by the manpower push-and-pull are controlled, the labour intensity that has significantly reduced the user makes that simultaneously the hoisting crane leg structure is compacter; And reduced by an oil cylinder, and simplified hydraulic circuit, reduced the financial cost of forestry hoisting crane.
Claims (1)
1. the supporting leg telescoping mechanism of a forestry hoisting crane list oil cylinder control includes, and it is characterized in that: this supporting leg telescoping mechanism comprises: vertical leg, end cap, horizontal support legs, piston rod, fixed supporting leg, cylinder barrel, stay bearing plate, bearing pin and shaft block ring; In fixed supporting leg, be connected with cylinder barrel, end at cylinder barrel is connected by the horizontal support legs of piston rod with a side, the other end at cylinder barrel is connected with the horizontal support legs of opposite side by stay bearing plate, end at two horizontal support legs all is connected with vertical leg respectively with shaft block ring by bearing pin, is connected with end cap in the end of horizontal support legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320198871 CN203187307U (en) | 2013-04-19 | 2013-04-19 | Supporting leg retraction mechanism controlled by single cylinder of forestry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320198871 CN203187307U (en) | 2013-04-19 | 2013-04-19 | Supporting leg retraction mechanism controlled by single cylinder of forestry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203187307U true CN203187307U (en) | 2013-09-11 |
Family
ID=49104183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320198871 Expired - Lifetime CN203187307U (en) | 2013-04-19 | 2013-04-19 | Supporting leg retraction mechanism controlled by single cylinder of forestry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203187307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293319A (en) * | 2015-07-02 | 2016-02-03 | 长沙卓创机械科技有限公司 | Supporting leg telescoping linkage mechanism |
| CN110816490A (en) * | 2020-01-03 | 2020-02-21 | 姚运文 | Jack-up transport vechicle with scalable back landing leg |
-
2013
- 2013-04-19 CN CN 201320198871 patent/CN203187307U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293319A (en) * | 2015-07-02 | 2016-02-03 | 长沙卓创机械科技有限公司 | Supporting leg telescoping linkage mechanism |
| CN110816490A (en) * | 2020-01-03 | 2020-02-21 | 姚运文 | Jack-up transport vechicle with scalable back landing leg |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |