CN201580922U - Inward-rolling type landing leg of lorry-mounted crane - Google Patents
Inward-rolling type landing leg of lorry-mounted crane Download PDFInfo
- Publication number
- CN201580922U CN201580922U CN2009202557014U CN200920255701U CN201580922U CN 201580922 U CN201580922 U CN 201580922U CN 2009202557014 U CN2009202557014 U CN 2009202557014U CN 200920255701 U CN200920255701 U CN 200920255701U CN 201580922 U CN201580922 U CN 201580922U
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- landing leg
- leg
- oil cylinder
- vertical
- lorry
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Abstract
The utility model discloses an inward-rolling type landing leg of lorry-mounted crane, which comprises horizontal movable landing legs, horizontal landing leg cylinders, vertical landing leg cylinders, turnover push rods, guide rods and landing leg plates. The inward-rolling type landing leg of lorry-mounted crane is characterized in that the horizontal landing leg cylinder and a fixed landing leg are arranged on the horizontal movable landing leg; the two ends of the horizontal movable landing leg are provided with the vertical landing leg cylinder; the bottom of the vertical landing leg cylinder is provided with the landing leg plate; the two sides of the vertical landing leg cylinder are provided with the turnover push rod; the lower part of the turnover push rod is provided with the guide rod; the horizontal movable landing leg is connected with the vertical landing leg cylinder and the horizontal movable landing leg by simple strutbeam structures. After the vertical landing leg cylinders and the landing leg plates upwards roll, the vertical landing leg cylinders and the landing leg plates automatically retract inside the horizontal movable landing legs under the effect of the guide rods. The inward-rolling type landing leg of lorry-mounted crane has the advantages of corresponding reducing the unbalanced loading force of the vertical landing leg cylinders; moreover, the inward-rolling type landing leg of lorry-mounted crane has better working situation of cylinders, stable support, and small occupied space. Meanwhile, leakage points are reduced as the connecting way of hydraulic pipelines are changed.
Description
Technical field
The utility model relates to a kind of new device of lorry-mounted crane supporting leg, turns over the formula supporting leg in especially a kind of lorry-mounted crane.
Background technology
At present, existing convertible supporting leg exists in use that the upset arm of force is little, tilting force is big, causes that vertical leg oil cylinder offset loading force is bigger than normal, the oil cylinder applying working condition is poor, upset starting difficulty, needs the external force boosting.The connection mode of vertical leg oil cylinder and horizontal anomalous movement supporting leg is a cantilever beam structure, and its stability is poor slightly.When hoisting crane was not worked, the vertical leg oil cylinder still is in extrapolated state after regaining, and was neither attractive in appearance, takes up space again, was unfavorable for operation.The connection mode of vertical leg oil cylinder and leg disc is a stationary structure, when it supports the road surface, because ground-surface unfairness, make the leg disc unbalance stress, thereby cause the vertical leg oil cylinder heavy burden line of force direction skew to occur, the stability when influencing complete machine work. flexible pipe in the hydraulic tubing, hard tube hybrid junction, seal point is too much, occurs easily revealing.
Summary of the invention
The purpose of this utility model is in order to overcome existing convertible supporting leg upset starting difficulty, stability of strutting system is poor, big deficiency takes up space, provide and turn over the formula supporting leg in a kind of lorry-mounted crane, it can solve upset supporting leg upset starting difficulty, and the stability when strengthening complete machine work can reduce again to take up space, be beneficial to operation, good looking appearance.
The technical scheme in the invention for solving the technical problem is: turn over the formula supporting leg in a kind of lorry-mounted crane and comprise horizontal anomalous movement supporting leg, horizontal support legs oil cylinder, vertical leg oil cylinder, upset push rod, pilot bar and leg disc.It is characterized in that: horizontal support legs oil cylinder and fixed supporting leg are installed on the horizontal anomalous movement supporting leg; At the two ends of horizontal anomalous movement supporting leg the vertical leg oil cylinder is housed, leg disc is housed in the bottom of vertical leg oil cylinder; In the both sides of vertical leg oil cylinder the upset push rod is housed, pilot bar is housed in the bottom of upset push rod; One end of pilot bar is connected with the upset push rod, and the other end is connected with the vertical leg oil cylinder; Adopt simple beam structure to be connected between horizontal anomalous movement supporting leg and the vertical leg oil cylinder, the vertical leg oil cylinder is connected with leg disc employing bearing pin.
Described simple beam structure is a known technology.
The beneficial effects of the utility model are: owing to adopt technique scheme, can make corresponding the reducing of this vertical leg oil cylinder offset loading force, the oil cylinder applying working condition is better, supporting ﹠ stablizing, and it is little to take up space.Simultaneously, owing to changed the connection mode of hydraulic tubing, reduced the leak point.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples;
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model supporting leg upset;
Fig. 3 inserts the interior structural representation of horizontal anomalous movement supporting leg for the utility model upset;
Fig. 4 is the structural representation of the utility model supporting leg after regaining.
Among the figure, 1. horizontal support legs oil cylinder, 2. fixed supporting leg, 3. horizontal anomalous movement supporting leg, 4. vertical leg oil cylinder, 5. upset push rod, 6. pilot bar, 7. leg disc.
The specific embodiment
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the utility model comprises horizontal anomalous movement supporting leg 3, fixed supporting leg 2, horizontal support legs oil cylinder 1, vertical leg oil cylinder 4, upset push rod 5, pilot bar 6 and leg disc 7.Horizontal support legs oil cylinder 1 and fixed supporting leg 2 are installed on horizontal anomalous movement supporting leg 3; At the two ends of horizontal anomalous movement supporting leg 3 vertical leg oil cylinder 4 is housed, leg disc 7 is housed in the bottom of vertical leg oil cylinder 4; Upset push rod 4 is housed in the both sides of vertical leg oil cylinder 4, pilot bar 6 is housed in the bottom of upset push rod 5; One end of pilot bar 6 is connected with upset push rod 5, and the other end is connected with vertical leg oil cylinder 4; Adopt simple beam structure to be connected between vertical leg oil cylinder 4 and the horizontal anomalous movement supporting leg 3.Vertical leg oil cylinder 4 adopts bearing pin to be connected with leg disc 7.
During work, after vertical leg oil cylinder 4 and leg disc 7 upwards overturn, under the effect of pilot bar 6, automatic deploying and retracting was in interior configuration state to horizontal anomalous movement supporting leg 3 inside, has saved the space; Vertical leg oil cylinder 4 adopts bearing pin to be connected with leg disc 7, constitutes semi-floating version, has reduced the deviation of vertical leg oil cylinder 4 heavy burden line of force squareness.Simultaneously, owing to changed the connection mode of hydraulic tubing, reduced the leak point.Horizontal anomalous movement supporting leg 3, vertical leg oil cylinder 4 and upset push rod 5 constitute a four-bar linkage.Utilize the retraction of vertical leg oil cylinder 4 cylinder bars, pass to 5 one thrusts of upset push rod, thereby produce an overturning couple, promote vertical leg oil cylinder 4 and leg disc 7 and finish resupinate action.When vertical leg oil cylinder 4 cylinder bars stretched out, vertical leg oil cylinder 4 and leg disc 7 utilized self gravitation, finish the action of downward upset.
Claims (2)
1. turn over the formula supporting leg in a lorry-mounted crane, comprise horizontal anomalous movement supporting leg, horizontal support legs oil cylinder, vertical leg oil cylinder, upset push rod, pilot bar and leg disc, it is characterized in that: horizontal support legs oil cylinder and fixed supporting leg are installed on the horizontal anomalous movement supporting leg; At the two ends of horizontal anomalous movement supporting leg the vertical leg oil cylinder is housed, leg disc is housed in the bottom of vertical leg oil cylinder; In the both sides of vertical leg oil cylinder the upset push rod is housed, pilot bar is housed in the bottom of upset push rod; One end of pilot bar is connected with the upset push rod, and the other end is connected with the vertical leg oil cylinder; Adopt simple beam structure to be connected between horizontal anomalous movement supporting leg and vertical leg oil cylinder and the horizontal anomalous movement supporting leg.
2. turn over the formula supporting leg in the lorry-mounted crane according to claim 1, it is characterized in that: described vertical leg oil cylinder adopts bearing pin to be connected with leg disc, constitutes semi-floating version.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202557014U CN201580922U (en) | 2009-11-22 | 2009-11-22 | Inward-rolling type landing leg of lorry-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202557014U CN201580922U (en) | 2009-11-22 | 2009-11-22 | Inward-rolling type landing leg of lorry-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201580922U true CN201580922U (en) | 2010-09-15 |
Family
ID=42722919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202557014U Expired - Fee Related CN201580922U (en) | 2009-11-22 | 2009-11-22 | Inward-rolling type landing leg of lorry-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201580922U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935914A (en) * | 2014-05-13 | 2014-07-23 | 福建省威盛机械发展有限公司 | Sling cart facilitating maintenance |
| CN105236280A (en) * | 2014-05-29 | 2016-01-13 | 江苏大通重工有限公司 | Movable landing leg of small tower crane pulling-up trailer |
| CN105417413A (en) * | 2015-12-04 | 2016-03-23 | 中联重科股份有限公司 | Crane and landing leg structure thereof |
-
2009
- 2009-11-22 CN CN2009202557014U patent/CN201580922U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935914A (en) * | 2014-05-13 | 2014-07-23 | 福建省威盛机械发展有限公司 | Sling cart facilitating maintenance |
| CN103935914B (en) * | 2014-05-13 | 2016-02-17 | 福建省威盛机械发展有限公司 | Be convenient to the sling cart keeped in repair |
| CN105236280A (en) * | 2014-05-29 | 2016-01-13 | 江苏大通重工有限公司 | Movable landing leg of small tower crane pulling-up trailer |
| CN105417413A (en) * | 2015-12-04 | 2016-03-23 | 中联重科股份有限公司 | Crane and landing leg structure thereof |
| CN105417413B (en) * | 2015-12-04 | 2017-06-30 | 中联重科股份有限公司 | Crane and its leg structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131122 |