CN1799908A - Telescopic support leg for travel machine and concrete pump truck with the same - Google Patents
Telescopic support leg for travel machine and concrete pump truck with the same Download PDFInfo
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- CN1799908A CN1799908A CN 200510136651 CN200510136651A CN1799908A CN 1799908 A CN1799908 A CN 1799908A CN 200510136651 CN200510136651 CN 200510136651 CN 200510136651 A CN200510136651 A CN 200510136651A CN 1799908 A CN1799908 A CN 1799908A
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- Prior art keywords
- supporting leg
- telescoping
- casing
- concrete pump
- supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
Abstract
The invention relates to a flexible supporting leg used in walking mechanics and relative concrete pump, which comprises a supporting box connecting the base and rotating the rotational axle; a sheath tube extending inside the supporting box; and a supporting leg sheathing on the front end of sheath tube and vertically extending. Wherein, said supporting box and sheath tube have a hydraulic cylinder with bidirectional function; two ends of said hydraulic cylinder are individually mounted on the fixing point at the end of supporting box and the farthest fixing point of sheath tube; and the rotational axle is between two ends of supporting box and de-center from the extension axle of hydraulic cylinder. The concrete pump can use said flexible supporting leg. The invention has tight structure, better forcing property, and shorter distance from the supporting leg rotational axle to the rotational device. And the concrete pump can better stability and wider application.
Description
Technical field
The present invention is mainly concerned with the walking machine field, refers in particular to a kind of telescoping supporting leg of walking machine and concrete pump truck with this supporting leg of being used for.
Background technology
In the prior art, on the chassis of engineering walking machine, be provided with the supporting leg that before side, launches mostly with the rear flank, these supporting legs are the axle swing on chassis or flexible relatively all, and has vertical oil cylinder to be used for supporting at the supporting leg end, makes the engineering walking machine can obtain stable mode of operation when operation.With the concrete pump truck is example, and present widely used front leg strut version is multistage Retral swing type, and the version of rear support leg is straight pendulum-type, and supporting leg has the X type structure of use or H type structure in part galianconism frame pump truck.
Germany Putzmeister company pump truck front leg strut uses its distinctive forward swing multilevel hierarchy, and German Schwing company pump truck front leg strut uses its distinctive arc leg structure, all can take into account good stressed and low spatial takies.Mainly there is shortcoming in prior art: 1, owing to structural limitations, and the projecting shaft structure of the segmentation that must adopt, needing more, large-diameter could satisfy stressed demand; 2, owing to the projecting shaft structure, the support arm distortion is bigger, stressed poor; 3, because shaft position is far away apart from swing type mechanism, support stiffness and stable difference.
Summary of the invention
The technical problem to be solved in the present invention just is: at the technical matters of prior art existence, provide a kind of can make supporting device compact more, make full use of the supporting device space, can make outrigger rotating shaft shorter to the swing type mechanism distance, and have the telescoping supporting leg that is used for walking machine of better mechanical characteristic, the present invention further provides a kind of concrete pump truck with this supporting leg.
In order to solve the problems of the technologies described above, the solution that the present invention proposes is: a kind of telescoping supporting leg that is used for walking machine, it comprises the supporting leg casing that is connected in deflection around the shaft on the chassis, the support foot part that one collar tube sub-assembly and that can stretch in the supporting leg casing is installed in the collar tube sub-assembly front end and can vertically stretches, be provided with a beidirectional hydraulic actuating cylinder in described supporting leg casing and the telescoping parts, the two ends of this hydraulic actuating cylinder are individually fixed at the attachment point of supporting leg casing end and the attachment point of collar tube sub-assembly distal-most end, it is characterized in that: described rotating shaft is between the two ends of supporting leg casing and deviate from the flexible axis of hydraulic actuating cylinder.
Described supporting leg casing extends to form ear towards the direction that deviates from the flexible axis of hydraulic actuating cylinder, and described rotating shaft is arranged in this ear, and perpendicular to the flexible axis of hydraulic actuating cylinder.
Described telescoping parts comprise the sleeve pipe that two or more can insert mutually.
The front end of described supporting leg casing is provided with roller support or sliding bearing, and the telescoping parts can support thereon in indentation with when overhanging.
Described supporting leg casing end is equipped with the flexible pipe track adjusting wheel.
Described support foot part has the overhanging cylinder of a hydraulic pressure, and the overhanging cylinder of this hydraulic pressure can connect oil sources by a flexible pipe that can be wound up on the hose reel.
The middle part of described support foot part links to each other with the end of terminal sleeve pipe in the collar tube sub-assembly.
A kind of concrete pump truck with the described supporting leg of claim 1, it comprises the chassis, rotating mechanism, boom, pumping installation and supporting device, described chassis comprises at least one front axle and at least one rear axle, rotating mechanism, boom, pumping installation and supporting device all are installed on the chassis, boom is connected in the top of rotating mechanism, pumping installation is positioned at the rear of rotating mechanism, installing can be around the supporting leg more than four or four of supporting device deflection on the supporting device, it is the telescoping supporting leg that supporting leg more than two or two is arranged in the described supporting leg more than four or four, it is characterized in that: described telescopic legs comprises the supporting leg casing, be installed in collar tube sub-assembly and hydraulic actuating cylinder in the supporting leg casing and the support foot part that is installed in supporting leg casing end, described supporting leg casing links to each other with supporting device by the rotating shaft that deviates from the flexible axis of supporting leg, and this rotating shaft is between the outrigger arm tank ends.
Described supporting leg is preceding pendulum-type or Retral swing type.
In the transport driving process of described concrete pump truck, the longitudinal axis that is parallel to the chassis behind the whole indentation supporting leg of the telescoping parts casing of supporting leg is arranged; When concrete pump truck was implemented operation, the telescoping parts of supporting leg are all or part of to be stretched out and stretches out beyond the edge on chassis before being tilted to together behind the supporting leg casing.
Compared with prior art, advantage of the present invention just is:
1, the present invention's telescoping supporting leg of being used for walking machine is arranged at rotating shaft the position of departing from the flexible axis of hydraulic actuating cylinder, therefore the present invention can adopt the design of non-projecting shaft as rotating shaft, thereby avoided adopting the structure of segmentation projecting shaft, simplify the structure and the course of processing, improve the stressed and rigidity of rotating shaft, improved the stability of whole support; Itself just have utilizable space near adding supporting device, the rotating shaft that departs from the flexible axis of hydraulic actuating cylinder just in time can utilize its remaining space, thereby has made full use of the space of supporting device, makes integral structure compact more; And rotating shaft is between the two ends of supporting leg casing, and it is shorter to make rotating shaft arrive the distance of rotating mechanism, has better loading characteristic;
2, the present invention's concrete pump bassinet structure of adopting the telescoping supporting leg is compact more, resistance to overturning is better, with telescopic leg and regular length supporting leg collocation use, and the mounting means that changes preceding pendulum-type or back Retral swing type, thereby make concrete pump truck Applicable scope of the present invention wider, can satisfy the needs of various operating environments, and commonality is stronger.
Description of drawings
Fig. 1 is the main TV structure scheme drawing of the telescoping supporting leg of walking machine of the present invention;
Fig. 2 is the plan structure scheme drawing of the telescoping supporting leg of walking machine of the present invention;
Fig. 3 is the structural representation after the telescoping supporting leg of walking machine of the present invention shrinks;
Fig. 4 is the main TV structure scheme drawing of the another kind of embodiment of telescoping supporting leg of walking machine of the present invention;
Fig. 5 is the plan structure scheme drawing of the another kind of embodiment of telescoping supporting leg of walking machine of the present invention;
Fig. 6 is that the master of concrete pump truck embodiment 1 structure of the present invention looks scheme drawing;
Fig. 7 is the schematic top plan view of concrete pump truck embodiment 1 structure of the present invention;
Fig. 8 is that the master of concrete pump truck embodiment 2 structures of the present invention looks scheme drawing;
Fig. 9 is that the master of concrete pump truck embodiment 3 structures of the present invention looks scheme drawing;
Figure 10 is that the master of concrete pump truck embodiment 4 structures of the present invention looks scheme drawing.
Marginal data
1, hose reel 2, attachment point
3, ear 4, flexible pipe track adjusting wheel
5, supporting leg casing 6, rotating shaft
7, roller support or sliding bearing 8, first order sleeve pipe
9, second stage sleeve pipe 10, hydraulic actuating cylinder
11, flexible axis 12, third stage sleeve pipe
13, attachment point 14, flexible pipe
20, chassis 21, rear axle
22, front axle 24, rotating mechanism
25, boom 26, pumping installation
27, the supporting leg of supporting device 28, regular length
29, ground 30, longitudinal axis
31, support foot part 32, oscillating oil cylinder
33, Retral swing type telescoping supporting leg 34, preceding pendulum-type telescoping supporting leg
35, oscillating oil cylinder 36, rotating shaft
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As Fig. 1, Fig. 2 and telescoping leg structure scheme drawing shown in Figure 3 and Fig. 6 and this supporting leg shown in Figure 7 are installed on the view of concrete pump truck, the telescoping supporting leg that is used for walking machine of the present invention, it comprises the supporting leg casing 5 that is connected in 6 deflections around the shaft on the chassis 20, the support foot part 31 that one collar tube sub-assembly and that can stretch in supporting leg casing 5 is installed in the collar tube sub-assembly front end and can vertically stretches, these telescoping parts comprise the sleeve pipe that two or more can insert mutually, be provided with a beidirectional hydraulic actuating cylinder 10 in supporting leg casing 5 and the telescoping parts, the two ends of this hydraulic actuating cylinder 10 are individually fixed in attachment point 13 rotating shafts 6 in the attachment point 2 of supporting leg casing 5 ends and collar tube sub-assembly distal-most end between the two ends of supporting leg casing 5 and deviate from the flexible axis 11 of hydraulic actuating cylinder 10.Because the flexible axis 11 of hydraulic actuating cylinder 10 has been avoided in rotating shaft 6, so the present invention can adopt the design of non-projecting shaft as rotating shaft 6, thereby avoided adopting the structure of segmentation projecting shaft, improved rotating shaft 6 stressed and rigidity, improved the stability of whole support; Itself just have utilizable space near adding supporting device 27, the rotating shaft 6 that departs from hydraulic actuating cylinder 10 flexible axis 11 just in time can utilize its remaining space, thereby has made full use of the space of supporting device 27, makes integral structure compact more; And rotating shaft 6 makes rotating shaft 6 shorter to the distance of rotating mechanism 24 between the two ends of supporting leg casing 5, has better loading characteristic.In the present embodiment, this supporting leg casing 5 extends to form ear 3 towards the direction that deviates from hydraulic actuating cylinder 10 flexible axis 11, and rotating shaft 6 is arranged in this ear 3 and perpendicular to the flexible axis 11 of hydraulic actuating cylinder 10; The telescoping parts comprise three sleeve pipes that can insert mutually, be first order sleeve pipe 8, second stage sleeve pipe 9 and third stage sleeve pipe 12, the front end of supporting leg casing 5 is provided with roller support or sliding bearing 7, the telescoping parts can be supported on roller support or the sliding bearing 7 in indentation with when overhanging, thereby reduced the friction force that produces during overhanging or indentation from supporting leg casing 5 at the telescoping parts, it is slided freely.Hydraulic actuating cylinder 10 is connected with the rear end of supporting leg casing 5 and the front end of collar tube sub-assembly, by effect flexible or gathering with supporting leg of hydraulic actuating cylinder 10.The end of terminal sleeve pipe is fixed at the top of support foot part 31, and support foot part 31 has the overhanging cylinder of a hydraulic pressure, and the overhanging cylinder of this hydraulic pressure can link to each other with oil sources by a flexible pipe 14 that can be wound up on the hose reel 1.In another embodiment, in order to satisfy the needs of actual working environment, the middle part of the support foot part 31 of this supporting leg can also be linked to each other with the end of terminal sleeve pipe, use when satisfying (referring to Fig. 4 and shown in Figure 5) than low chassis height or needs avoiding obstacles.
Principle of work: when arriving control position, green phase answers development mechanism that telescopic outrigger is deployed into the relevant position, the Hydraulic Pump of walking machine provides oil sources, to hydraulic actuating cylinder 10 fuel feeding, the collar tube sub-assembly of supporting leg is under hydraulic actuating cylinder 10 effects, first order sleeve pipe 8, second stage sleeve pipe 9 and third stage sleeve pipe 12 are reached assigned address, by flexible pipe 14 to support foot part 31 fuel feeding, support foot part 31 is fixed on the ground 29, so far the supporting leg that corresponding supporting device 27 is extended is propped up, and wherein two flexible pipe track adjusting wheels 4 guarantee flexible pipe 14 smooth folding and unfoldings when supporting leg launches and stretches.
Referring to Fig. 6 and shown in Figure 7, a kind of concrete pump truck of the present invention with telescopic leg, it comprises chassis 20, rotating mechanism 24, boom 25, pumping installation 26 and supporting device 27, chassis 20 comprises at least one front axle 22 and at least one rear axle 21, rotating mechanism 24, boom 25, pumping installation 26 and supporting device 27 all are installed on the chassis 20, boom 25 is connected in the top of rotating mechanism 24, pumping installation 26 is positioned at the rear of rotating mechanism 24, installing can be around the supporting leg more than four or four of supporting device 27 rotations on the supporting device 27, it is the telescoping supporting leg that supporting leg more than two or two is arranged in this supporting leg more than four or four, telescopic legs comprises supporting leg casing 5, be installed in collar tube sub-assembly and hydraulic actuating cylinder 10 in the supporting leg casing 5 and the support foot part 31 that is installed in supporting leg casing 5 ends, the rotating shaft 6 of the flexible axis 11 of supporting leg casing 5 by deviating from supporting leg links to each other with supporting device 27, and this rotating shaft 6 between the two ends of supporting leg casing 5 (referring to Fig. 1).Pendulum-type or Retral swing type design before supporting leg more than four or four can all adopt, pendulum-type or Retral swing type design before also can partly adopting.In the transport driving process of concrete pump truck, hydraulic ram 10 in the supporting leg casing 5 of supporting leg is with the whole indentations of telescoping parts, and the longitudinal axis 30 that is parallel to chassis 20 is arranged, and when concrete pump truck is implemented operation, hydraulic ram 10 in the supporting leg casing 5 of supporting leg stretches out the telescoping parts are all or part of, and the telescoping parts stretch out beyond the edge on chassis 20 before support foot part 31 is tilted to.
Principle of work: after concrete pump truck arrives operating location, green phase answers development mechanism that supporting leg is deployed into the relevant position, the Hydraulic Pump of walking machine provides oil sources, to hydraulic actuating cylinder 10 fuel feeding, the leg sleeve duct member reaches assigned address with multistage sleeve pipe successively under hydraulic actuating cylinder 10 effects, pass through flexible pipe 14 then to support foot part 31 fuel feeding, support foot part 31 stretches out the outer rim on chassis 20 and is fixed on the ground 30, corresponding supporting device 27 is propped up, form stable support, boom 25 launches, and pumping installation 26 starts, the action of beginning cloth.
As shown in Figure 6 and Figure 7, the scheme drawing of the embodiment of the invention 1 concrete pump truck, pendulum-type telescoping supporting leg 34 before two front leg struts use among this embodiment, and two rear support legs use straight pendulum-type regular length supporting leg 28, straight pendulum-type regular length supporting leg 28 by rotating shaft 36 fixing with supporting device 27 on, its main body is passed through oscillating oil cylinder 32 and is linked to each other with supporting device 27; As shown in Figure 8, the scheme drawing of the embodiment of the invention 2 concrete pump trucks, two front leg struts use Retral swing type telescoping supporting leg 33 among this embodiment, and two rear support legs use straight pendulum-type regular length supporting leg 28; As shown in Figure 9, the scheme drawing of the embodiment of the invention 3 concrete pump trucks, pendulum-type telescoping supporting leg 34 before two front leg struts use among this embodiment, and two rear support legs use Retral swing type telescoping supporting leg 33; As shown in figure 10, the scheme drawing of the embodiment of the invention 4 concrete pump trucks, two front leg struts of this embodiment use Retral swing type telescoping supporting leg 33, and rear support leg uses preceding pendulum-type telescoping supporting leg 34.Hence one can see that, operating environment, stability requirement and chassis 20 configurations etc. according to concrete pump truck, concrete pump truck of the present invention can be controlled installation quantity, the front and back of telescoping supporting leg the mode of putting and do corresponding collocation with cooperating of straight pendulum-type regular length supporting leg 28, thereby satisfy the requirement of concrete construction and operation, so concrete pump truck wide accommodation of the present invention, highly versatile.
Claims (10)
1, a kind of telescoping supporting leg that is used for walking machine, it comprises the supporting leg casing (5) that is connected in (6) deflection around the shaft on the chassis (20), the support foot part (31) that one collar tube sub-assembly and that can stretch in supporting leg casing (5) is installed in the collar tube sub-assembly front end and can vertically stretches, be provided with a beidirectional hydraulic actuating cylinder (10) in described supporting leg casing (5) and the telescoping parts, the two ends of this hydraulic actuating cylinder (10) are individually fixed at the terminal attachment point (2) of supporting leg casing (5) and the attachment point (13) of collar tube sub-assembly distal-most end, it is characterized in that: described rotating shaft (6) is positioned between the two ends of supporting leg casing (5) and deviates from the flexible axis (11) of hydraulic actuating cylinder (10).
2, the telescoping supporting leg that is used for walking machine according to claim 1, it is characterized in that: described supporting leg casing (5) extends to form ear (3) towards the direction that deviates from the flexible axis (11) of hydraulic actuating cylinder (10), and described rotating shaft (6) is arranged in this ear (3) and perpendicular to the flexible axis (11) of hydraulic actuating cylinder (10).
3, the telescoping supporting leg that is used for walking machine according to claim 1 and 2, it is characterized in that: described telescoping parts comprise the sleeve pipe that two or more can insert mutually.
4, the telescoping supporting leg that is used for walking machine according to claim 1 and 2 is characterized in that: the front end of described supporting leg casing (5) is provided with roller support or sliding bearing (7), and the telescoping parts can support thereon in indentation with when overhanging.
5, the telescoping supporting leg that is used for walking machine according to claim 1 and 2, it is characterized in that: described support foot part (31) has the overhanging cylinder of a hydraulic pressure, and the overhanging cylinder of this hydraulic pressure can connect oil sources by a flexible pipe (14) that can be wound up on the hose reel (1).
6, the telescoping supporting leg that is used for walking machine according to claim 1 and 2, it is characterized in that: the middle part of described support foot part (31) links to each other with the end of terminal sleeve pipe in the collar tube sub-assembly.
7, the telescoping supporting leg that is used for walking machine according to claim 1 and 2 is characterized in that: described supporting leg casing (5) end is equipped with flexible pipe track adjusting wheel (4).
8, a kind of concrete pump truck with the described supporting leg of claim 1, it comprises chassis (20), rotating mechanism (24), boom (25), pumping installation (26) and supporting device (27), described chassis (20) comprises at least one front axle (22) and at least one rear axle (21), rotating mechanism (24), boom (25), pumping installation (26) and supporting device (27) all are installed on the chassis (20), boom (25) is connected in the top of rotating mechanism (24), pumping installation (26) is positioned at the rear of rotating mechanism (24), supporting device (27) is gone up installing can be around the supporting leg more than four or four of supporting device (27) deflection, it is the telescoping supporting leg that supporting leg more than two or two is arranged in the described supporting leg more than four or four, it is characterized in that: described telescopic legs comprises supporting leg casing (5), be installed in collar tube sub-assembly and hydraulic actuating cylinder (10) in the supporting leg casing (5) and the support foot part (31) that is installed in supporting leg casing (5) end, described supporting leg casing (5) links to each other with supporting device (27) by the rotating shaft (6) that deviates from the flexible axis (11) of supporting leg, and this rotating shaft (6) is positioned between supporting leg casing (5) two ends.
9, concrete pump truck according to claim 8 is characterized in that: described supporting leg is preceding pendulum-type or Retral swing type.
10, according to Claim 8 or 9 described concrete pump trucks, it is characterized in that: in the transport driving process of described concrete pump truck, the longitudinal axis (30) that is parallel to chassis (20) behind the whole indentation supporting leg of the telescoping parts casing (5) of supporting leg is arranged; When concrete pump truck was implemented operation, the telescoping parts of supporting leg are all or part of to be stretched out and stretches out beyond the edge of chassis (20) before being tilted to together behind the supporting leg casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510136651 CN100497052C (en) | 2005-12-30 | 2005-12-30 | Telescopic support leg for travel machine and concrete pump truck with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510136651 CN100497052C (en) | 2005-12-30 | 2005-12-30 | Telescopic support leg for travel machine and concrete pump truck with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1799908A true CN1799908A (en) | 2006-07-12 |
| CN100497052C CN100497052C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510136651 Active CN100497052C (en) | 2005-12-30 | 2005-12-30 | Telescopic support leg for travel machine and concrete pump truck with the same |
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| CN (1) | CN100497052C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077290A1 (en) * | 2006-12-22 | 2008-07-03 | Sany Heavy Industry Co., Ltd. | Telescopic supporting device for walking mechanics |
| WO2009036627A1 (en) * | 2007-09-21 | 2009-03-26 | Sany Heavy Industry Co., Ltd. | Support device for walking machines |
| CN101066672B (en) * | 2007-07-05 | 2010-04-21 | 三一重工股份有限公司 | Mechanically moving pillar and concrete pumping truck with the pillar |
| CN101654097B (en) * | 2009-08-21 | 2011-08-17 | 重庆交通大学 | Folding type mobile car lifting jack |
| CN101845892B (en) * | 2009-03-27 | 2011-10-05 | 徐工集团工程机械股份有限公司建设机械分公司 | Single-side operation control method, controller and concrete pump truck |
| CN102229333A (en) * | 2011-04-19 | 2011-11-02 | 贵州成智重工科技有限公司 | Supporting leg structure for wheel type mobile crusher |
| CN102287055A (en) * | 2011-06-28 | 2011-12-21 | 三一重工股份有限公司 | Concrete pump truck |
| CN102490699A (en) * | 2011-11-10 | 2012-06-13 | 林志国 | Rotatable lifting support leg of vehicle |
| CN102556011A (en) * | 2012-01-29 | 2012-07-11 | 三一重工股份有限公司 | Supporting leg structure and engineering machine with same |
| CN103043040A (en) * | 2012-12-20 | 2013-04-17 | 三一重工股份有限公司 | Supporting leg reinforcing arm and engineering machinery |
| WO2013110223A1 (en) * | 2012-01-29 | 2013-08-01 | 湖南三一智能控制设备有限公司 | Support system and engineering machinery having the support system |
| CN115649123A (en) * | 2022-11-08 | 2023-01-31 | 吉林大学 | Arc-shaped two-stage telescopic concrete pump truck supporting leg structure |
-
2005
- 2005-12-30 CN CN 200510136651 patent/CN100497052C/en active Active
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077290A1 (en) * | 2006-12-22 | 2008-07-03 | Sany Heavy Industry Co., Ltd. | Telescopic supporting device for walking mechanics |
| ES2335629A1 (en) * | 2006-12-22 | 2010-03-30 | Sany Heavy Industry Co., Ltd. | Telescopic support device of mobile vehicle |
| CN101066672B (en) * | 2007-07-05 | 2010-04-21 | 三一重工股份有限公司 | Mechanically moving pillar and concrete pumping truck with the pillar |
| WO2009036627A1 (en) * | 2007-09-21 | 2009-03-26 | Sany Heavy Industry Co., Ltd. | Support device for walking machines |
| CN100528647C (en) * | 2007-09-21 | 2009-08-19 | 三一重工股份有限公司 | Walking type mechanical supporting device and concrete pump vehicle with the same |
| EP2202121A1 (en) * | 2007-09-21 | 2010-06-30 | Sany Heavy Industry Co., Ltd. | Support device for walking machines |
| EP2202121A4 (en) * | 2007-09-21 | 2013-01-16 | Sany Heavy Ind Co Ltd | Support device for walking machines |
| US8302993B2 (en) | 2007-09-21 | 2012-11-06 | Sany Heavy Industry Co., Ltd. | Support device for walking machines |
| CN101845892B (en) * | 2009-03-27 | 2011-10-05 | 徐工集团工程机械股份有限公司建设机械分公司 | Single-side operation control method, controller and concrete pump truck |
| CN101654097B (en) * | 2009-08-21 | 2011-08-17 | 重庆交通大学 | Folding type mobile car lifting jack |
| CN102229333B (en) * | 2011-04-19 | 2015-10-28 | 贵州成智重工科技有限公司 | The leg structure of wheel type mobile crusher |
| CN102229333A (en) * | 2011-04-19 | 2011-11-02 | 贵州成智重工科技有限公司 | Supporting leg structure for wheel type mobile crusher |
| CN102287055A (en) * | 2011-06-28 | 2011-12-21 | 三一重工股份有限公司 | Concrete pump truck |
| CN102490699A (en) * | 2011-11-10 | 2012-06-13 | 林志国 | Rotatable lifting support leg of vehicle |
| CN102490699B (en) * | 2011-11-10 | 2013-12-18 | 林志国 | Rotatable lifting support leg of vehicle |
| WO2013110223A1 (en) * | 2012-01-29 | 2013-08-01 | 湖南三一智能控制设备有限公司 | Support system and engineering machinery having the support system |
| CN102556011A (en) * | 2012-01-29 | 2012-07-11 | 三一重工股份有限公司 | Supporting leg structure and engineering machine with same |
| CN103043040A (en) * | 2012-12-20 | 2013-04-17 | 三一重工股份有限公司 | Supporting leg reinforcing arm and engineering machinery |
| CN103043040B (en) * | 2012-12-20 | 2015-07-08 | 三一汽车制造有限公司 | Supporting leg reinforcing arm and engineering machinery |
| CN115649123A (en) * | 2022-11-08 | 2023-01-31 | 吉林大学 | Arc-shaped two-stage telescopic concrete pump truck supporting leg structure |
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| CN100497052C (en) | 2009-06-10 |
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Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130502 |
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Effective date of registration: 20130502 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan, Changsha Patentee before: Sanyi Heavy Industry Co., Ltd. |