CN102935841A - Telescopic supporting leg and application thereof - Google Patents
Telescopic supporting leg and application thereof Download PDFInfo
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- CN102935841A CN102935841A CN2012105075931A CN201210507593A CN102935841A CN 102935841 A CN102935841 A CN 102935841A CN 2012105075931 A CN2012105075931 A CN 2012105075931A CN 201210507593 A CN201210507593 A CN 201210507593A CN 102935841 A CN102935841 A CN 102935841A
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- supporting leg
- leg case
- telescopic
- oil cylinder
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Abstract
The invention relates to a telescopic supporting leg comprising a supporting leg box, a supporting leg, a first-stage supporting leg box telescopic oil cylinder, a first-stage supporting leg telescopic oil cylinder and a supporting leg box roller structure, wherein the supporting leg is embedded in the supporting leg box. The telescopic supporting leg is characterized in that the first-stage supporting leg box telescopic oil cylinder is arranged outside the supporting leg box, wherein one end of the first-stage supporting leg box telescopic oil cylinder is connected with a supporting leg box side plate support and the other end thereof is connected with a support arranged on an oil tank structure; the first-stage supporting leg telescopic oil cylinder is arranged inside the supporting leg, wherein one end of the first-stage supporting leg telescopic oil cylinder is connected with a support arranged on the supporting leg box and the other end thereof is connected with a support arranged on the supporting leg; and the supporting leg box roller structure comprises two lower supporting leg box roller structures, an upper supporting leg box roller structure and a side supporting leg box roller structure, wherein the two lower supporting leg box roller structures are arranged on the oil tank structure, the upper supporting leg box roller structure is arranged at the upper part of the supporting leg box, and the side supporting leg box roller structure is arranged on a supporting leg box side plate relative to the opposite side of the supporting leg box telescopic oil cylinder. Through the invention, the structure of the telescopic leg is simple, and abrasion among hydraulic pipelines and faults of the telescopic supporting leg are reduced; the telescopic action of the supporting leg is rapid so that the working efficiency is increased; and the supporting leg telescopic oil cylinder is low in price, and the telescopic supporting leg is convenient to mount and repair.
Description
Technical field
The present invention relates to a kind of telescopic outrigger for concrete pump truck, the invention still further relates to the concrete pump truck with this boom bracing or strutting arrangement.
Background technology
Concrete pump truck is mainly finished the functions such as concrete conveying and cloth operation, has that pump-conveying property is good, characteristics such as the cloth scope is large, the independent ambulation ability is arranged, maneuverability, efficient is high, labour power is economized, comprehensive cost is low.At present, concrete pump truck has been widely used in the engineerings such as water conservancy, water power, subway, bridge, building, sports equipment, especially for narrow camp site with obstacle is arranged, some building sites, be difficult to be directly adjacent to construction work with other transportation means, concrete pump truck has more outstanding advantage.
Before entering Construction State, concrete pump truck need to stretch out supporting leg obtaining larger supporting leg span, so that pump truck has good stability in working order the time.At present, the usage comparison of two-stage telescopic outrigger in pump truck is extensive, and its main drive form mainly contains: single multi-stage expansion hydraulic oil cylinder driving, built-in pair of hydraulic oil cylinder driving.But exist certain defective in the existing two-stage telescopic outrigger hydraulic oil cylinder driving technology: multi-stage expansion cylinder structure complexity, processing difficulties, very high, the slow motion of cost; Built-in pair of hydraulic oil cylinder driving complex structure, hydraulic tubing difficult arrangement, pipeline easy oil leakage and wearing and tearing, inconvenient maintenance.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of and simple, easy to maintenance, stretching speed is installed is reached soon concrete pump truck telescopic outrigger with low cost, and the application of this telescopic outrigger on pump truck.
In order to achieve the above object, technical scheme of the present invention has provided a kind of telescopic outrigger, comprise inside and outside nested support leg, supporting leg case, wherein, support leg is nested in the supporting leg case, it is characterized in that: one-level supporting leg case telescopic oil cylinder is arranged in the outside of supporting leg case, and an end of one-level supporting leg case telescopic oil cylinder links to each other with the supporting leg case side plate outside, the other end links to each other with the tank body of oil tank structure, and it is flexible in the tank body of oil tank structure to drive the supporting leg case by one-level supporting leg case telescopic oil cylinder; One-level support leg telescopic oil cylinder is arranged in support leg inside, and one-level support leg telescopic oil cylinder one end links to each other with the supporting leg case, and the other end links to each other with support leg, and it is flexible in the supporting leg case to drive support leg by one-level support leg telescopic oil cylinder.
Preferably, described supporting leg case is furnished with supporting leg case roller structure, comprises supporting leg case bottom roller structure one, supporting leg case bottom roller structure two, supporting leg case upper roller structure and supporting leg case side wheel structure; Supporting leg case bottom roller structure one and supporting leg case bottom roller structure two are installed on the tank body of oil tank structure, and the roller in the roller structure two protrudes the structural slab of tank body of oil tank structure; Supporting leg case upper roller structure is installed in the top of described supporting leg case, and the roller of supporting leg case upper roller structure protrudes the upper cover plate of supporting leg case; Supporting leg case side wheel structure is installed in a side that deviates from supporting leg case telescopic oil cylinder of supporting leg case, and the roller of supporting leg case side wheel structure protrudes the side plate of supporting leg case.
The present invention also provides a kind of above-mentioned telescopic outrigger as the application of front leg strut on concrete pump truck.
Telescopic outrigger among the present invention compared with prior art, two one-level telescopic oil cylinder processing technologys are simple, working accuracy is easy to guarantee, cheap; Two one of oil cylinders are positioned at supporting leg, and one is positioned at outside the supporting leg, have simplified the hydraulic pipeline structure in the supporting leg, have reduced wearing and tearing and the leakage of oil situation of each pipeline, and have installed simple, easy to maintenance; Inner cylinder cylinder body and piston rod are all thinner, and oil inlet quantity is little, and stretching speed is fast; Two one-level telescopic oil cylinders can stretch separately, also can realize by fluid control the interlock of supporting leg case and support leg, have accelerated especially the stretching speed of telescopic outrigger; Supporting leg case roller structure is simple, and the upper and lower roller structure of supporting leg case plays good directional tagging when the supporting leg case is flexible, and supporting leg case side wheel structure is can prevent effectively that the supporting leg case from regaining the time and the problem of Oiltank structure " card ".
Advantage of the present invention is: telescopic outrigger simple in structure greatly reduces wearing and tearing between hydraulic tubing and the fault of telescopic outrigger; The landing leg stretching action is fast, increases work efficiency; The landing leg stretching oil cylinder is cheap, and telescopic outrigger is installed and be easy to maintenance.
Description of drawings
Fig. 1 is the structure front elevational schematic of a kind of telescopic outrigger provided by the invention;
Fig. 2 is the structure schematic top plan view of a kind of telescopic outrigger provided by the invention;
Fig. 3 is the local enlarged diagram of a kind of telescopic outrigger provided by the invention.
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.
As shown in Figures 1 and 2, the telescopic outrigger structure that this enforcement provides mainly is comprised of following part: support leg 1, supporting leg case 2, support leg telescopic oil cylinder 4, supporting leg case telescopic oil cylinder 5, supporting leg case bottom roller structure 1, supporting leg case bottom roller structure 27, supporting leg case upper roller structure 8, supporting leg case side wheel structure 9.Wherein, for better saying something, shown among the figure that 3 conducts of tank body of oil tank structure are with reference to structure.
The local enlarged diagram of telescopic outrigger is seen Fig. 3.
Support leg 1, supporting leg case 2 and tank body of oil tank structure 3 are inside and outside nested setting, and wherein, support leg 1 places in the supporting leg case 2 and can be movable relatively, and supporting leg case 2 places in the tank body of oil tank structure 3 and can be movable relatively.Need to prove that the agent structure of support leg 1, supporting leg case 2 and tank body of oil tank structure 3 and inside and outside nest relation are not the inventive point places of this patent, do not give unnecessary details so give.
As shown in Figures 1 and 2, shown in Fig. 1 and Fig. 2, the telescopic outrigger structure adopts two independent one-level telescopic oil cylinders.Described one-level supporting leg case telescopic oil cylinder 5 is arranged in the outside of supporting leg case 2, and its cylinder ends is hinged by the bearing on bearing pin and the tank body of oil tank structure 3, and the piston rod end links to each other with supporting leg case 2 side plate bearings by screw thread; Can realize supporting leg case 2 stretching in tank body of oil tank structure 3 by the flexible of control supporting leg case telescopic oil cylinder 5.Described one-level support leg telescopic oil cylinder 4 is arranged in support leg 1 inside, and its cylinder ends is hinged by the bearing on bearing pin and the supporting leg case, and the piston rod end links to each other by the bearing of screw thread with support leg 1; The flexible of control support leg telescopic oil cylinder 4 can be realized the contraction of support leg 2 in supporting leg case 2.
By fluid control, but described support leg telescopic oil cylinder 4 and supporting leg case telescopic oil cylinder 5 single movements are controlled separately the contraction of support leg 1 and supporting leg case 2; Also can be so that support leg telescopic oil cylinder 4 and supporting leg case telescopic oil cylinder 5 move next so that support leg 1 and supporting leg case 2 shrink simultaneously simultaneously.
Shown in Fig. 1, Fig. 2 and Fig. 3, adopted roller structure in the telescopic outrigger structure.Described supporting leg case roller structure comprises supporting leg case bottom roller structure 1, supporting leg case bottom roller structure 27, supporting leg case upper roller structure 8 and supporting leg case side wheel structure 9.Supporting leg case bottom roller structure 1 and supporting leg case bottom roller structure 27 are installed on the tank body of oil tank structure 3, and so that roller protrudes the certain height of structural slab of tank body of oil tank structure 3; Supporting leg case upper roller structure 8 is installed in the top of supporting leg case 2, and so that roller protrudes the upper cover plate certain altitude of supporting leg case 2; Supporting leg case side wheel structure 9 is installed in a side that deviates from supporting leg case telescopic oil cylinder 5 of supporting leg case 2, and so that roller protrudes the side plate certain altitude of supporting leg case 2.
In supporting leg case 2 telescopic process, because the factors such as weight of deadweight and support leg cause supporting leg case end to be tilted upward to sinking, afterbody.Described supporting leg case bottom roller structure 1, supporting leg case bottom roller structure 27 and supporting leg case upper roller structure 8 can reduce the friction force of 3 on supporting leg case 2 and tank body of oil tank structure greatly, play good directional tagging simultaneously in the telescopic process of supporting leg case 2.Supporting leg case side wheel structure 9 is installed in a side that deviates from supporting leg case telescopic oil cylinder 5 of supporting leg case 2, plays so good side direction directional tagging in the contraction process of supporting leg case 2, effectively prevents when supporting leg case 2 from regaining and the problem of tank body of oil tank structure 3 " card ".
Claims (3)
1. telescopic outrigger, comprise inside and outside nested support leg (1), supporting leg case (2), wherein, support leg (1) is nested in the supporting leg case (2), it is characterized in that: one-level supporting leg case telescopic oil cylinder (5) is arranged in the outside of supporting leg case (2), one end of one-level supporting leg case telescopic oil cylinder (5) links to each other with supporting leg case (2) the side plate outside, the other end links to each other with tank body of oil tank structure (3), and it is flexible in tank body of oil tank structure (3) to drive supporting leg case (2) by one-level supporting leg case telescopic oil cylinder (5); One-level support leg telescopic oil cylinder (4) is arranged in support leg (1) inside, one-level support leg telescopic oil cylinder (4) one ends link to each other with supporting leg case (2), the other end links to each other with support leg (1), and it is flexible in supporting leg case (2) to drive support leg (1) by one-level support leg telescopic oil cylinder (4).
2. a kind of telescopic outrigger as claimed in claim 1, it is characterized in that: described supporting leg case (2) is furnished with supporting leg case roller structure, comprises supporting leg case bottom roller structure one (6), supporting leg case bottom roller structure two (7), supporting leg case upper roller structure (8) and supporting leg case side wheel structure (9); Supporting leg case bottom roller structure one (6) and supporting leg case bottom roller structure two (7) are installed on the tank body of oil tank structure (3), and the roller in the roller structure two (7) protrudes the structural slab of tank body of oil tank structure (3); Supporting leg case upper roller structure (8) is installed in the top of described supporting leg case (2), and the roller of supporting leg case upper roller structure (8) protrudes the upper cover plate of supporting leg case (2); Supporting leg case side wheel structure (9) is installed in a side that deviates from supporting leg case telescopic oil cylinder (5) of supporting leg case (2), and the roller of supporting leg case side wheel structure (9) protrudes the side plate of supporting leg case (2).
3. a telescopic outrigger as claimed in claim 1 is as the application of front leg strut on concrete pump truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105075931A CN102935841A (en) | 2012-11-30 | 2012-11-30 | Telescopic supporting leg and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105075931A CN102935841A (en) | 2012-11-30 | 2012-11-30 | Telescopic supporting leg and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102935841A true CN102935841A (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105075931A Pending CN102935841A (en) | 2012-11-30 | 2012-11-30 | Telescopic supporting leg and application thereof |
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| CN (1) | CN102935841A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218946A (en) * | 1988-02-29 | 1989-09-01 | Aichi Sharyo Kk | Outrigger device |
| CN1963239A (en) * | 2006-12-07 | 2007-05-16 | 三一重工股份有限公司 | Cylinder set for use in retraction mechanism |
| CN101028910A (en) * | 2007-04-11 | 2007-09-05 | 三一重工股份有限公司 | Front leg of mobile engineering machinery and mobile engineering machinery therewith |
| CN200989342Y (en) * | 2006-12-07 | 2007-12-12 | 三一重工股份有限公司 | Cylinder set for telescopic mechanism use |
| CN102390365A (en) * | 2011-09-28 | 2012-03-28 | 江苏捷诚车载电子信息工程有限公司 | Retractable vehicle outrigger |
-
2012
- 2012-11-30 CN CN2012105075931A patent/CN102935841A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218946A (en) * | 1988-02-29 | 1989-09-01 | Aichi Sharyo Kk | Outrigger device |
| CN1963239A (en) * | 2006-12-07 | 2007-05-16 | 三一重工股份有限公司 | Cylinder set for use in retraction mechanism |
| CN200989342Y (en) * | 2006-12-07 | 2007-12-12 | 三一重工股份有限公司 | Cylinder set for telescopic mechanism use |
| CN101028910A (en) * | 2007-04-11 | 2007-09-05 | 三一重工股份有限公司 | Front leg of mobile engineering machinery and mobile engineering machinery therewith |
| CN102390365A (en) * | 2011-09-28 | 2012-03-28 | 江苏捷诚车载电子信息工程有限公司 | Retractable vehicle outrigger |
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Application publication date: 20130220 |