CN204297987U - A kind of support leg device of construction machinery and equipment and construction machinery and equipment - Google Patents
A kind of support leg device of construction machinery and equipment and construction machinery and equipment Download PDFInfo
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- CN204297987U CN204297987U CN201420788588.7U CN201420788588U CN204297987U CN 204297987 U CN204297987 U CN 204297987U CN 201420788588 U CN201420788588 U CN 201420788588U CN 204297987 U CN204297987 U CN 204297987U
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Abstract
The utility model relates to technical field of engineering machinery, a kind of support leg device and construction machinery and equipment of construction machinery and equipment are disclosed, support leg device comprises vehicle frame and four supporting legs, each supporting leg comprises fixed supporting leg case, movable supporting legs, cross cylinder, the afterbody of movable supporting legs is provided with Vertical Cylinders, and the external part of Vertical Cylinders is provided with the first support foot plate; It is characterized in that, the movable supporting legs of at least one supporting leg is provided with folding support frame, and folding support frame is provided with the second support foot plate; When each supporting leg and folding support frame launch, first support foot plate of at least one supporting leg and be provided with folding support frame supporting leg the first support foot plate between form the first span and and form the second span between the second support foot plate of folding support frame, the second span is greater than the first span.The support leg device of above-mentioned construction machinery and equipment can improve construction machinery and equipment vehicle frame towards this supporting leg the other side upwards operation time resistant to tipping ability and stability, improve construction machinery and equipment at vehicle frame towards this supporting leg the other side load-carrying ability upwards.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of support leg device of construction machinery and equipment and construction machinery and equipment.
Background technology
In engineering machinery field, a lot of construction machinery and equipment needs to arrange support leg device to improve safety and stability during construction machinery and equipment work.
Because H type support leg device does not need supporting leg swing space, adopt the construction machinery and equipment of H type support leg device can adapt to the construction of narrow and small place preferably.
As shown in Figure 1, H type support leg device comprises vehicle frame 01, four supporting legs, and as supporting leg 02, supporting leg 03, supporting leg 04 and supporting leg 05, wherein each supporting leg has movable supporting legs and fixed supporting leg case.In each supporting leg, rigid attachment is formed by welding manner between fixed supporting leg case and vehicle frame 01, movable supporting legs is placed in fixed supporting leg case and built-in cross cylinder, one end of cross cylinder connects with fixed supporting leg case, the other end connects with movable supporting legs, the afterbody of movable supporting legs installs Vertical Cylinders, and the external part of Vertical Cylinders is provided with support foot plate.As shown in fig. 1, the afterbody of supporting leg 02 is provided with Vertical Cylinders 021, and the external part of Vertical Cylinders 021 is provided with support foot plate 022; The afterbody of supporting leg 03 is provided with Vertical Cylinders 031, and the external part of Vertical Cylinders 031 is provided with support foot plate 032; The afterbody of supporting leg 04 is provided with Vertical Cylinders 041, and the external part of Vertical Cylinders 041 is provided with support foot plate 042; The afterbody of supporting leg 05 is provided with Vertical Cylinders 051, and the external part of Vertical Cylinders 051 is provided with support foot plate 052.
Before engineer machinery operation, each supporting leg controls its movable supporting legs by cross cylinder and stretches out from fixed supporting leg case level, then is stretched out by Vertical Cylinders control support foot plate, finally realizes the support to vehicle frame 01, and makes vehicle frame 01 leave ground.Longitudinal span a as shown in fig. 1 of supporting leg, horizontal span b as shown in fig. 1 in H type support leg device.
But, because construction machinery and equipment operating mode when operation is more, in order to by object weight lifting to setting position, longitudinal span after the supporting leg expansion of construction machinery and equipment or horizontal span can not meet the job requirements of construction machinery and equipment, cause the resistant to tipping ability of construction machinery and equipment when operation and less stable, have impact on the load-carrying ability of construction machinery and equipment to a certain extent.
Utility model content
The utility model provides a kind of support leg device and construction machinery and equipment of construction machinery and equipment, resistant to tipping ability when this support leg device can improve construction machinery and equipment lifting work and stability, and then the load-carrying ability improving construction machinery and equipment.
For achieving the above object, the utility model provides following technical scheme:
A kind of support leg device of construction machinery and equipment, comprise vehicle frame and four supporting legs, supporting leg described in each comprises the fixed supporting leg case being fixed on described vehicle frame, the movable supporting legs being installed on fixed supporting leg case, drives the relative cross cylinder flexible with described fixed supporting leg case of described movable supporting legs, the afterbody of described movable supporting legs is provided with Vertical Cylinders, and the external part of Vertical Cylinders is provided with the first support foot plate; Described at least one, the movable supporting legs of supporting leg is provided with folding support frame, and described folding support frame is provided with the second support foot plate; When each described supporting leg and described folding support frame launch, first support foot plate of at least one supporting leg and be provided with described folding support frame supporting leg the first support foot plate between form the first span and and form the second span between the second support foot plate of described folding support frame, described second span is greater than described first span.
In the support leg device of above-mentioned construction machinery and equipment, when launching to each supporting leg and folding support frame, the first support foot plate of at least one supporting leg and be provided with folding support frame supporting leg the first support foot plate between form the first span and and form the second span between the second support foot plate of folding support frame; Because, second span is greater than the first span, so construction machinery and equipment can be improved at vehicle frame towards this supporting leg and along resistant to tipping ability during the second span direction operation and stability, and then improve construction machinery and equipment at vehicle frame towards this supporting leg and along the load-carrying ability on the second span direction.
Preferably, described folding support frame comprises at least one folding arm and with described folding arm one_to_one corresponding, to drive described folding arm to launch or folding driving oil cylinder.
Preferably, described folding support frame comprises the first folding arm, the second folding arm, first drives oil cylinder, second to drive oil cylinder, wherein:
One end of described first folding arm is installed on the afterbody of movable supporting legs in described supporting leg by the first pivotal axis, the other end is connected by the second pivotal axis with one end of the second folding arm, and described second support foot plate is installed on the other end of described second folding arm;
Described first drives one end of oil cylinder to be installed on described movable supporting legs, and the other end is installed on described first folding arm; Described second drives one end of oil cylinder to be installed on described first folding arm, and the other end is installed on described second folding arm.
Preferably, one end of described first folding arm is installed on the afterbody of movable supporting legs in described supporting leg by the first pivotal axis, specifically comprise:
The afterbody of described movable supporting legs is fixed with connecting panel, and described first pivotal axis is fixed on described connecting panel.
Preferably, weld between described connecting panel with described movable supporting legs, and described first pivotal axis welds with between described connecting panel, described first folding arm has the through hole coordinated with described first pivotal axis.
Preferably, along the direction of axis line of described first pivotal axis, the length of described first pivotal axis is greater than the thickness of described first folding arm, and described first pivotal axis is positioned at the position that described first folding arm deviates from described connecting panel side is arranged with packing ring, is positioned at the pin-and-hole that described packing ring deviates from described first folding arm side, in described pin-and-hole, be plugged with spring cotter.
Preferably, two supporting legs in four described supporting legs have described folding support frame, and two supporting legs being provided with described folding support frame are adjacent, wherein:
It is parallel with the direction of travel of construction machinery and equipment when described folding support frame is positioned at the both sides of vehicle frame and launches; Or,
Described folding support frame is vertical with the direction of travel of construction machinery and equipment when being positioned at the homonymy of vehicle frame and launching.
Preferably, four described supporting legs are equipped with described folding support frame, wherein:
It is all parallel with the direction of travel of construction machinery and equipment when described folding support frame launches; Or,
Described folding support frame is all vertical with the direction of travel of construction machinery and equipment when launching.
The utility model additionally provides a kind of construction machinery and equipment, and this project machinery comprises any one support leg device provided in technique scheme.
Preferably, described construction machinery and equipment is car hosit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the H type support leg device adopted in existing construction machinery and equipment;
The deployed configuration schematic diagram of several support leg devices of Fig. 2 a ~ Fig. 2 f for providing in the utility model embodiment;
The partial enlarged drawing at the D position in the support leg device that Fig. 3 is structure shown in Fig. 2 a;
Fig. 4 is for the A of structure shown in Fig. 3 is to structural representation;
Fig. 5 is for the B of structure shown in Fig. 4 is to structural representation;
The folded state schematic diagram that Fig. 6 is the folding support frame of structure shown in Fig. 5.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 2 a ~ Fig. 2 f, wherein, the deployed configuration schematic diagram of several support leg devices of Fig. 2 a ~ Fig. 2 f for providing in the utility model embodiment, direction C shown in Fig. 2 a ~ Fig. 2 f is the working direction of construction machinery and equipment, for ease of being described the principle of work of following each embodiment, setting: for the orientation shown in any one figure of Fig. 2 a ~ Fig. 2 f, the direction of direction C indication shown in Fig. 2 a ~ Fig. 2 f is for being called " front ", the direction contrary with direction C is called " afterwards ", the top of vehicle frame 1 is called on " right side ", and the below of vehicle frame 1 is called on " left side ".
As shown in Fig. 2 a ~ Fig. 2 f, the support leg device of the construction machinery and equipment that the utility model embodiment provides comprises vehicle frame 1 and four supporting legs, each supporting leg comprises the fixed supporting leg case being fixed on vehicle frame 1, the movable supporting legs being installed on fixed supporting leg case, drives the cross cylinder that movable supporting legs is relative and fixed supporting leg case is flexible, the afterbody of movable supporting legs is provided with Vertical Cylinders, and the external part of Vertical Cylinders is provided with the first support foot plate; For shown in Fig. 2 a, support leg device comprises vehicle frame 1, supporting leg 2, supporting leg 3, supporting leg 4 and supporting leg 5, wherein, for the supporting leg 2 shown in Fig. 2 a, supporting leg 2 comprises the fixed supporting leg case 23 being fixed on vehicle frame 1, the movable supporting legs 25 being installed on fixed supporting leg case 23, the cross cylinder 24 that drives movable supporting legs 25 flexible relative to fixed supporting leg case 23, the afterbody of movable supporting legs 25 is provided with Vertical Cylinders 21, and the external part of Vertical Cylinders 21 is provided with the first support foot plate 22; In like manner, as shown in Figure 2 a, the movable supporting legs afterbody of supporting leg 3 is provided with Vertical Cylinders 31, and the external part of Vertical Cylinders 31 is provided with the first support foot plate 32; The movable supporting legs afterbody of supporting leg 4 is provided with Vertical Cylinders 41, and the external part of Vertical Cylinders 41 is provided with the first support foot plate 42; The movable supporting legs afterbody of supporting leg 5 is provided with Vertical Cylinders 51, and the external part of Vertical Cylinders 51 is provided with the first support foot plate 52;
Wherein, in above-mentioned four supporting legs, the movable supporting legs of at least one supporting leg is provided with folding support frame 6, and folding support frame 6 is provided with the second support foot plate 61; When each supporting leg and folding support frame 6 launch, first support foot plate of at least one supporting leg and be provided with folding support frame 6 supporting leg the first support foot plate between form the first span and and form the second span between the second support foot plate 61 of folding support frame 6, the second span is greater than the first span.
In the support leg device of above-mentioned construction machinery and equipment, when launching to each supporting leg and folding support frame 6, the first support foot plate of at least one supporting leg and be provided with folding support frame 6 supporting leg the first support foot plate between form the first span and and form the second span between the second support foot plate 61 of folding support frame 6; Because, second span is greater than the first span, so construction machinery and equipment can be improved at vehicle frame towards this supporting leg and along resistant to tipping ability during the second span direction operation and stability, and then improve construction machinery and equipment at vehicle frame towards this supporting leg and along the load-carrying ability on the second span direction.
Therefore, above-mentioned support leg device can improve the resistant to tipping ability of construction machinery and equipment when operation and stability, and then improves the load-carrying ability of construction machinery and equipment.
On the basis of the respective embodiments described above, in a kind of preferred implementation, folding support frame 6 comprises at least one folding arm and with folding arm one_to_one corresponding, to drive folding arm to launch or folding driving oil cylinder.
Preferably, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, folding support frame 6 comprises the first folding arm 63, second folding arm 64, first and drives oil cylinder 65, second to drive oil cylinder 66, wherein:
One end of first folding arm 63 is installed on the afterbody of movable supporting legs in supporting leg by the first pivotal axis 68, the other end is connected by the second pivotal axis 67 with one end of the second folding arm 64, and the second support foot plate 61 is installed on the other end of the second folding arm 64;
First drives one end of oil cylinder 65 to be installed on movable supporting legs, and the other end is installed on the first folding arm 63; Second drives one end of oil cylinder 66 to be installed on the first folding arm 63, and the other end is installed on the second folding arm 64.The folding support frame 6 of said structure can realize the expansion of folding support frame 6 with folding by the first folding arm 63 and the second folding arm 64, can either increase the alerting ability of folding support frame 6 action, can ensure again stability when folding support frame 6 supports simultaneously.
Particularly, as shown in Figure 4, for supporting leg 5, one end of the first folding arm 63 is installed on the afterbody of movable supporting legs in supporting leg 5 by the first pivotal axis 68, specifically comprise:
The afterbody of movable supporting legs is fixed with connecting panel 62, and the first pivotal axis 68 is fixed on connecting panel 62.
More specifically, connecting panel 62 welds with between movable supporting legs, and the first pivotal axis 68 welds with between connecting panel 62, and the first folding arm 63 has the through hole coordinated with the first pivotal axis 68.Connecting panel 62 is welded in, and can ensure the stability be connected between connecting panel 62 and the movable supporting legs of supporting leg, can improve the mechanical strength that movable supporting legs is welded to connect plate 62 position simultaneously.
Preferably, please continue to refer to Fig. 4, along the direction of axis line of the first pivotal axis 68, the length of the first pivotal axis 68 is greater than the thickness of the first folding arm 63, and the first pivotal axis 68 is positioned at position that the first folding arm 63 deviates from connecting panel 62 side is arranged with packing ring 681 and is positioned at the pin-and-hole 682 that packing ring 681 deviates from the first folding arm 63 side, spring cotter is plugged with, to realize the connection between the first folding arm 63 and connecting panel 62 and the first pivotal axis 68 in pin-and-hole 682.
In a kind of preferred implementation, as shown in Figure 4 and Figure 6, continue to be described when supporting leg 5 is provided with folding support frame 6, when being positioned at the both sides of vehicle frame along the first support foot plate had perpendicular to two supporting legs that the direction of travel C supporting leg of construction machinery and equipment is internal:
Connecting panel 62 is fixed on the end that movable supporting legs deviates from vehicle frame 1;
The axial line of the first pivotal axis 68 is parallel relative to the telescopic direction of fixed supporting leg case with movable supporting legs;
The axial line of the second pivotal axis 67 and the axis parallel of the first pivotal axis 68.
In a kind of preferred implementation, two supporting legs in four supporting legs have folding support frame 6, and two supporting legs being provided with folding support frame 6 are adjacent, wherein:
It is parallel with the direction of travel of construction machinery and equipment when folding support frame 6 is positioned at the both sides of vehicle frame 1 and launches; Or,
Folding support frame 6 be positioned at vehicle frame 1 homonymy, launch time vertical with the direction of travel of construction machinery and equipment.
In a kind of detailed description of the invention, as shown in Figure 2 b, the supporting leg 3 in four supporting legs of support leg device and supporting leg 4 are provided with folding support frame 6, and the first support foot plate that supporting leg 3 and supporting leg 4 have is positioned at the both sides of vehicle frame 1; Now, after the folding support frame 6 that the movable supporting legs of supporting leg 3 is arranged launches, the line of the second support foot plate 61 between first support foot plate 32 and the first support foot plate 42 of supporting leg 4 of supporting leg 3 deviates from the side of supporting leg 2 and supporting leg 5; Meanwhile, after the folding support frame 6 that the movable supporting legs of supporting leg 4 is arranged launches, the line of the second support foot plate 61 between first support foot plate 32 and the first support foot plate 42 of supporting leg 4 of supporting leg 3 deviates from the side of supporting leg 2 and supporting leg 5; Therefore, after the folding support frame 6 that supporting leg 2, supporting leg 3, supporting leg 4, supporting leg 5 and supporting leg 3 and supporting leg 4 are arranged launches, along the direction of travel of construction machinery and equipment, the span formed between first support foot plate 22 of supporting leg 2 and the first support foot plate 32 of supporting leg 3 is a shown in Fig. 2 b, and the second support foot plate 61 that the folding support frame 6 that supporting leg 3 and supporting leg 4 are arranged has can will increase d along the span in engineering machinery walking direction to the rear side of vehicle frame, therefore, the support leg device of structure shown in Fig. 2 b meets along the span c on engineering machinery walking direction after launching: c=a+d; Therefore, orientation as shown in Figure 2 b, the resistant to tipping ability of construction machinery and equipment when the rear side of vehicle frame 1 carries out lifting is higher, and stability is high, thus can increase the load-carrying ability of construction machinery and equipment on rear side of vehicle frame 1.
In like manner, as shown in Figure 2 c, in another kind of detailed description of the invention, supporting leg 2 and the supporting leg 5 of support leg device are provided with folding support frame 6, now, when each supporting leg of support leg device and folding support frame 6 launch, along the direction of travel of construction machinery and equipment, the span formed between first support foot plate 22 of supporting leg 2 and the first support foot plate 32 of supporting leg 3 is a shown in Fig. 2 b, the second support foot plate 61 that the folding support frame 6 that supporting leg 2 and supporting leg 5 are arranged is provided with can increase f by along the span in engineering machinery walking direction to the front side of vehicle frame, therefore, meet along the span e on engineering machinery walking direction after the support leg device expansion of structure shown in Fig. 2 c: e=a+f, therefore, orientation as shown in Figure 2 c, resistant to tipping ability when construction machinery and equipment carries out lifting on front side of vehicle frame 1 is higher, and stability is high, thus can increase the load-carrying ability of construction machinery and equipment on front side of vehicle frame 1.
In like manner, as shown in Figure 2 e, in another kind of detailed description of the invention, supporting leg 2 and the supporting leg 3 of support leg device are provided with folding support frame 6, now, when each supporting leg of support leg device and folding support frame 6 launch, along the direction of travel perpendicular to construction machinery and equipment, the span formed between first support foot plate 32 of supporting leg 3 and the first support foot plate 42 of supporting leg 4 is b shown in Fig. 2 e, the second support foot plate 61 that the folding support frame 6 that supporting leg 2 and supporting leg 3 are arranged is provided with can increase h by along the span perpendicular to engineering machinery walking direction to the left side of vehicle frame 1, therefore, the support leg device of structure shown in Fig. 2 e launches rear along satisfied perpendicular to the span k on engineering machinery walking direction: k=b+h, therefore, orientation as shown in Figure 2 e, resistant to tipping ability when construction machinery and equipment carries out lifting on the left of vehicle frame 1 is higher, and stability is high, thus can increase the load-carrying ability of construction machinery and equipment on the left of vehicle frame 1.
In like manner, as shown in figure 2f, in another kind of detailed description of the invention, supporting leg 4 and the supporting leg 5 of support leg device are provided with folding support frame 6, now, when each supporting leg of support leg device and folding support frame 6 launch, along the direction of travel perpendicular to construction machinery and equipment, the span formed between first support foot plate 32 of supporting leg 3 and the first support foot plate 42 of supporting leg 4 is b shown in Fig. 2 e, the second support foot plate 61 that the folding support frame 6 that supporting leg 4 and supporting leg 5 are arranged is provided with can increase i by along the span perpendicular to engineering machinery walking direction to the right side of vehicle frame 1, therefore, the support leg device of structure shown in Fig. 2 f launches rear along satisfied perpendicular to the span m on engineering machinery walking direction: m=b+i, therefore, orientation as shown in figure 2f, resistant to tipping ability when construction machinery and equipment carries out lifting on the right side of vehicle frame 1 is higher, and stability is high, thus can increase the load-carrying ability of construction machinery and equipment on the right side of vehicle frame 1.
In support leg device in above-mentioned Fig. 2 b, Fig. 2 c, Fig. 2 e and the detailed description of the invention shown in Fig. 2 f, all only have two supporting legs to be provided with folding support frame 6 in its four supporting legs, the resistant to tipping ability of construction machinery and equipment in vehicle frame 1 side, stability and load-carrying ability can be improved.
Certainly, in another kind of preferred implementation, four supporting legs of support leg device are equipped with folding support frame 6, wherein:
It is all parallel with the direction of travel of construction machinery and equipment when folding support frame 6 launches; Or,
It is all vertical with the direction of travel of construction machinery and equipment when folding support frame 6 launches.
Particularly, can the support leg device of structure shown in reference diagram 2a and Fig. 2 d.
Supporting leg 2 in the support leg device of structure shown in Fig. 2 a and cooperation between supporting leg 5, and coordinate between supporting leg 3 and supporting leg 4, when two supporting legs are to when being all in deployed condition, along the direction of travel (namely along the longitudinal direction) of construction machinery and equipment, the span g of construction machinery and equipment meets: g=a+f+d, wherein, a is the span along engineering machinery walking direction formed between the first support foot plate 22 of supporting leg 2 and the first support foot plate 32 of supporting leg 3, d is between the second support foot plate 61 of the folding support frame 6 that supporting leg 3 is arranged and the first support foot plate 32 of supporting leg 3, and be positioned at the span that the first support foot plate 32 deviates from supporting leg 2 side, f is between the second support foot plate 61 of the folding support frame 6 that supporting leg 2 is arranged and the first support foot plate 22 of supporting leg 2, and be positioned at the span that the first support foot plate 22 deviates from supporting leg 3 side.Therefore, construction machinery and equipment can be increased f along the span in engineering machinery walking direction to front side by the support leg device of said structure, and increase d to rear side, and then resistant to tipping ability, the stability of construction machinery and equipment on front side of vehicle frame 1 and in rear direction during lifting can be improved, and then the load-carrying ability of construction machinery and equipment on front side of vehicle frame 1 and in rear direction can be improved.
In like manner, cooperatively interact between supporting leg 2 in the support leg device of structure shown in Fig. 2 and supporting leg 3, cooperatively interact between supporting leg 4 and supporting leg 5, when each supporting leg is to when being all in deployed condition, along the direction of travel (i.e. the left and right directions of vehicle frame) perpendicular to construction machinery and equipment, the span j of construction machinery and equipment meets: j=b+i+h, wherein, b be formed between the first support foot plate 32 of supporting leg 3 and the first support foot plate 42 of supporting leg 4 along perpendicular to the span in engineering machinery walking direction, h is between the second support foot plate 61 of the folding support frame 6 that supporting leg 3 is arranged and the first support foot plate 32 of supporting leg 3, and be positioned at the span that the first support foot plate 32 deviates from supporting leg 4 side, i is between the second support foot plate 61 of the folding support frame 6 that supporting leg 4 is arranged and the first support foot plate 42 of supporting leg 4, and be positioned at the span that the first support foot plate 42 deviates from supporting leg 3 side.Therefore, construction machinery and equipment can be increased h along the span perpendicular to engineering machinery walking direction by the support leg device of said structure to the left, and increase i to the right, and then resistant to tipping ability, the stability of construction machinery and equipment on the left of vehicle frame 1 and on right direction during lifting can be improved, and then the load-carrying ability of construction machinery and equipment on the left of vehicle frame 1 and on right direction can be improved.
In addition, the utility model additionally provides a kind of construction machinery and equipment, and this project machinery comprises any one support leg device provided in the respective embodiments described above.
Obviously, those skilled in the art can carry out various change and modification to the utility model embodiment and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. the support leg device of a construction machinery and equipment, comprise vehicle frame and four supporting legs, supporting leg described in each comprises the fixed supporting leg case being fixed on described vehicle frame, the movable supporting legs being installed on fixed supporting leg case, drives the relative cross cylinder flexible with described fixed supporting leg case of described movable supporting legs, the afterbody of described movable supporting legs is provided with Vertical Cylinders, and the external part of Vertical Cylinders is provided with the first support foot plate; It is characterized in that, described at least one, the movable supporting legs of supporting leg is provided with folding support frame, and described folding support frame is provided with the second support foot plate; When each described supporting leg and described folding support frame launch, first support foot plate of at least one supporting leg and be provided with described folding support frame supporting leg the first support foot plate between form the first span and and form the second span between the second support foot plate of described folding support frame, described second span is greater than described first span.
2. support leg device according to claim 1, is characterized in that, described folding support frame comprises at least one folding arm and with described folding arm one_to_one corresponding, to drive described folding arm to launch or folding driving oil cylinder.
3. support leg device according to claim 2, is characterized in that, described folding support frame comprises the first folding arm, the second folding arm, first drives oil cylinder, second to drive oil cylinder, wherein:
One end of described first folding arm is installed on the afterbody of movable supporting legs in described supporting leg by the first pivotal axis, the other end is connected by the second pivotal axis with one end of the second folding arm, and described second support foot plate is installed on the other end of described second folding arm;
Described first drives one end of oil cylinder to be installed on described movable supporting legs, and the other end is installed on described first folding arm; Described second drives one end of oil cylinder to be installed on described first folding arm, and the other end is installed on described second folding arm.
4. support leg device according to claim 3, is characterized in that, one end of described first folding arm is installed on the afterbody of movable supporting legs in described supporting leg by the first pivotal axis, specifically comprise:
The afterbody of described movable supporting legs is fixed with connecting panel, and described first pivotal axis is fixed on described connecting panel.
5. support leg device according to claim 4, is characterized in that, welds between described connecting panel with described movable supporting legs, and described first pivotal axis welds with between described connecting panel, and described first folding arm has the through hole coordinated with described first pivotal axis.
6. support leg device according to claim 5, it is characterized in that, along the direction of axis line of described first pivotal axis, the length of described first pivotal axis is greater than the thickness of described first folding arm, and described first pivotal axis is positioned at the position that described first folding arm deviates from described connecting panel side is arranged with packing ring, is positioned at the pin-and-hole that described packing ring deviates from described first folding arm side, in described pin-and-hole, be plugged with spring cotter.
7. the support leg device according to any one of claim 1-6, is characterized in that, two supporting legs in four described supporting legs have described folding support frame, and two supporting legs being provided with described folding support frame are adjacent, wherein:
It is parallel with the direction of travel of construction machinery and equipment when described folding support frame is positioned at the both sides of vehicle frame and launches; Or,
Described folding support frame is vertical with the direction of travel of construction machinery and equipment when being positioned at the homonymy of vehicle frame and launching.
8. the support leg device according to any one of claim 1-6, is characterized in that, four described supporting legs are equipped with described folding support frame, wherein:
It is all parallel with the direction of travel of construction machinery and equipment when described folding support frame launches; Or,
Described folding support frame is all vertical with the direction of travel of construction machinery and equipment when launching.
9. a construction machinery and equipment, is characterized in that, comprises the support leg device as described in any one of claim 1 ~ 8.
10. construction machinery and equipment according to claim 9, is characterized in that, described construction machinery and equipment is car hosit.
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| CN109552273A (en) * | 2017-09-26 | 2019-04-02 | 德国施维英有限公司 | Bending supporting leg with folding means |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109552273A (en) * | 2017-09-26 | 2019-04-02 | 德国施维英有限公司 | Bending supporting leg with folding means |
| CN108773769A (en) * | 2018-07-02 | 2018-11-09 | 合肥市春华起重机械有限公司 | A kind of crane adjustable supports and its application method |
| CN109052199A (en) * | 2018-09-30 | 2018-12-21 | 三汽车制造有限公司 | Leg assembly and mechanical equipment |
| CN109052199B (en) * | 2018-09-30 | 2024-01-19 | 三一汽车制造有限公司 | Leg assembly and mechanical equipment |
| CN111926877A (en) * | 2020-06-04 | 2020-11-13 | 西安理工大学 | Water environment treatment dredging engineering machinery walking device |
| CN112158747A (en) * | 2020-09-12 | 2021-01-01 | 徐州市创盛工程机械有限公司 | Truck-mounted crane rear supporting leg with departure angle |
| CN112158747B (en) * | 2020-09-12 | 2022-06-17 | 徐州市创盛工程机械有限公司 | Truck-mounted crane rear supporting leg with departure angle |
| CN113911934A (en) * | 2021-09-17 | 2022-01-11 | 合肥市春华起重机械有限公司 | Anti-rollover crane with high terrain adaptability |
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