CN103193168B - Travelable supporting leg device of all-terrain crane - Google Patents
Travelable supporting leg device of all-terrain crane Download PDFInfo
- Publication number
- CN103193168B CN103193168B CN201310121843.2A CN201310121843A CN103193168B CN 103193168 B CN103193168 B CN 103193168B CN 201310121843 A CN201310121843 A CN 201310121843A CN 103193168 B CN103193168 B CN 103193168B
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- Prior art keywords
- supporting leg
- oil cylinder
- travelable
- crane
- terrain crane
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Abstract
The invention discloses a travelable supporting leg device of an all-terrain crane and belongs to the technical field of all-terrain cranes. The travelable supporting leg device is characterized in that the lower end of a supporting leg of the all-terrain crane in the prior art is provided with a travelable supporting wheel device which has the following structure: the upper end of a supporting leg plate base is made into a concave spherical surface, a semisphere arranged at the lower end of the supporting leg is arranged in the concave spherical surface to realize sliding fit, and the upper part of the supporting leg plate base is fixedly connected through a close cover by using a bolt; and the bottom of the supporting leg plate base is connected with a disk-shaped connecting plate through a bolt, the lower part of the connecting plate is connected with a bearing block of a travelling wheel through a pivoting support, and the travelling wheel is arranged in the bearing block through a bearing. In an oil cylinder hydraulic system with a vertical supporting leg, a rod chamber oil circuit of a hydraulic oil cylinder is connected in series with a two-position two-way electromagnetic directional valve and also connected with a top petrol tank; and a rodless chamber oil circuit of the hydraulic oil cylinder is connected in series with a two-position two-way electromagnetic directional valve and also connected with an energy accumulator. The device can adapt to the lifting travelling operation and static lifting operation and used for improving the performance of the lifting travelling operation of the crane.
Description
Technical field
The invention belongs to all terrain crane technical field, be specifically related to a kind of walked support leg device of all terrain crane.
Background technology
All terrain crane not only has the function utilizing the static lift heavy of supporting leg, but also has the function of lift heavy traveling.At present, the structure of all terrain crane of use is both at home and abroad the bottom surface of the leg disc of four supporting legs is aspects.When hoisting crane carries out static lift heavy, four supporting leg floor-type supports hoisting crane and carries out static lift heavy; When craning weight of same travels, be packed up by four supporting legs to leave ground, the load-bearing of roller tire travels, and now, the total weight of hoisting crane carries by chassis.The shortcoming of this structure is the load-carrying capacity of the device such as tire and hydro pneumatic suspension on all terrain crane chassis and anti-tipping ability is limited, limits the lift heavy driveability of all terrain crane.
Summary of the invention
The object of this invention is to provide a kind of walked support leg device of all terrain crane, the shortcoming that prior art exists can be overcome.
The present invention is achieved in that as shown in Figure 1, is to install a wheel apparatus that can walk in all terrain crane supporting leg lower end.As shown in Figure 2, the structure of this device is that concave spherical surface is made in the upper end of supporting leg dish seat 3, and the hemisphere of supporting leg 1 lower end loads in the concave spherical surface of supporting leg dish seat 3 upper end, and realize bearing fit, the top of supporting leg dish seat 3 is fixedly connected with bolt by capping 2; Be connected by bolt with discoid terminal pad 7 bottom supporting leg dish seat 3, the bottom of terminal pad 7 is by pivoting support 8(gauge member) be connected with the bearing seat 9 of road wheel 11, road wheel 11 is arranged in bearing seat 9 by bearing 10.As shown in Figure 3, the vertical center line B of road wheel and the vertical center line A of supporting leg has a spacing e.Meanwhile, as shown in Figure 5, in the vertical oil cylinder hydraulic system of supporting leg, access bi-bit bi-pass solenoid directional control valve 18 of connecting in the rod chamber oil circuit of hydraulic ram 17, and be connected with top petrol tank 20; To connect in the rodless cavity oil circuit of hydraulic ram 17 access bi-bit bi-pass solenoid directional control valve 18, and be connected with energy storage 19.
Advantage of the present invention with beneficial effect is: compared with existing stabilizer plate device, and the present invention both may be used for the operation of all terrain crane stationary support lift heavy, may be used for again all terrain crane lift heavy and travels operation; Certain load can be shared for devices such as the hydro pneumatic suspension of all terrain crane and tires when lift heavy travels operation, improve the safety that the traveling lift heavy amount of hoisting crane, the resistant to tipping ability strengthening hoisting crane and lift heavy travel operation.
Accompanying drawing explanation
Fig. 1 is support leg device structural representation of walking provided by the present invention;
Fig. 2 is support leg device cross section view of walking provided by the present invention;
Fig. 3 is that in structure of the present invention, the vertical center line of supporting leg and the vertical center line of road wheel are biased schematic diagram;
Fig. 4 is the vertical oil cylinder hydraulic system schematic of supporting leg in prior art;
Fig. 5 is the vertical oil cylinder hydraulic system schematic of supporting leg provided by the present invention.
In figure: 1-supporting leg, 2-capping, 3-supporting leg dish seat, 4, 5, 6-bolt, nut, pad, 7-terminal pad, 8-pivoting support, 9-bearing seat, 10-bearing, 11-road wheel, 12-external bearing cover, 13-internal bearing cover, 14-bearing lower fixed seat, 15-solenoid directional control valve, 16-bidirectional hydraulic lock, 17-vertical hydraulic oil cylinder, 18-bi-bit bi-pass solenoid directional control valve, 19-energy storage, 20-top petrol tank, the vertical center line of A-supporting leg, the vertical center line of B-road wheel, the vertical center line of e-road wheel and the vertical centre distance between centers of tracks of supporting leg, P-oil-feed oil circuit, T-oil return circuit.
Detailed description of the invention
When lift heavy travels operation, as depicted in figs. 1 and 2, crane support 1 by supporting leg dish seat 3, terminal pad 7, pivoting support 8, bearing seat 9, bearing 10 by a part of dynamic changes process to road wheel 11, road wheel 11 and earth surface, roll and travel, for certain load shared by the chassis tire of hoisting crane, improve resistant to tipping ability.Now, two bi-bit bi-pass solenoid directional control valves 18 in support oil cylinder hydraulic efficiency pressure system are in opening, energy storage 19 is communicated with the rodless cavity of hydraulic ram 17, top petrol tank 20 is communicated with the rod chamber of hydraulic ram 17, if Active workings unfairness, supporting leg 1 can be made to have certain retractility, and the vibration of attenuate ground; Simultaneously, because the vertical center line B of road wheel and the vertical center line A of supporting leg has a spacing e, make road wheel 11 can produce eccentric moment with the concavo-convex physical features on ground, the rotating direction of road wheel 11 is changed by pivoting support 8, raising can be walked the crossing ability of support leg device, reduces road surface to the friction of road wheel 11.
When static lift heavy operation, by bolt 4, nut 5 and pad 6 are removed, parts below supporting leg dish seat 3 are all removed, and two bi-bit bi-pass solenoid directional control valves 18 in support oil cylinder hydraulic efficiency pressure system cut out, now, only have supporting leg dish seat 3 to play a supportive role, crane support 1 by supporting leg dish seat 3 directly and ground or pad contact, plays a supportive role.
Claims (1)
1. the walked support leg device of an all terrain crane, it is characterized in that a wheel apparatus that can walk is installed in the lower end of all terrain crane supporting leg (1), concave spherical surface is made in the upper end of the supporting leg dish seat (3) of this wheel apparatus that can walk, the hemisphere of supporting leg (1) lower end loads in the concave spherical surface of supporting leg dish seat (3) upper end, the top of supporting leg dish seat (3) is fastened by capping (2) and is fixedly connected with bolt, supporting leg dish seat (3) bottom is bolted with discoid terminal pad (7), the bottom of terminal pad (7) is connected with the bearing seat (9) of road wheel (11) by pivoting support (8), road wheel (11) is arranged in bearing seat (9) by bearing (10), a spacing (e) is had between the vertical center line (B) of road wheel (11) and the vertical center line (A) of supporting leg (1), a series connection bi-bit bi-pass solenoid directional control valve (18) in the rod chamber oil circuit of supporting leg vertical hydraulic oil cylinder (17) simultaneously, and be connected with top petrol tank (20), to connect in the rodless cavity oil circuit of supporting leg vertical hydraulic oil cylinder (17) access bi-bit bi-pass solenoid directional control valve (18), and be connected with energy storage (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121843.2A CN103193168B (en) | 2013-04-10 | 2013-04-10 | Travelable supporting leg device of all-terrain crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310121843.2A CN103193168B (en) | 2013-04-10 | 2013-04-10 | Travelable supporting leg device of all-terrain crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103193168A CN103193168A (en) | 2013-07-10 |
| CN103193168B true CN103193168B (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310121843.2A Expired - Fee Related CN103193168B (en) | 2013-04-10 | 2013-04-10 | Travelable supporting leg device of all-terrain crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103193168B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236280B (en) * | 2014-05-29 | 2017-08-15 | 江苏大通重工有限公司 | The movable supporting legs of the cocked trailer of Mini-tower hoist tool |
| CN110332170A (en) * | 2019-08-01 | 2019-10-15 | 江苏集萃道路工程技术与装备研究所有限公司 | A kind of the active control valves group and thrust wheel system of thrust wheel |
| CN113147692B (en) * | 2021-05-10 | 2024-02-06 | 徐州徐工施维英机械有限公司 | Hydraulic roller device and telescopic supporting leg and engineering machinery with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2668423Y (en) * | 2003-07-16 | 2005-01-05 | 科顺（广州）脚轮有限公司 | Shockproof castor |
| US7328810B1 (en) * | 2003-12-22 | 2008-02-12 | Lester Kent Rhodes | Crane supporting apparatus |
| CN102416933A (en) * | 2010-09-28 | 2012-04-18 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102502431A (en) * | 2011-11-08 | 2012-06-20 | 中联重科股份有限公司 | Auxiliary supporting device of crane and crane with auxiliary supporting device |
| CN202624176U (en) * | 2012-05-21 | 2012-12-26 | 西安建筑科技大学 | Auxiliary supporting device for vehicle and movable engineering machinery |
| CN102923100A (en) * | 2012-11-13 | 2013-02-13 | 郑州新大方重工科技有限公司 | Crane landing leg provided with caterpillar track traveling mechanism and wheel suspension traveling mechanism |
-
2013
- 2013-04-10 CN CN201310121843.2A patent/CN103193168B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2668423Y (en) * | 2003-07-16 | 2005-01-05 | 科顺（广州）脚轮有限公司 | Shockproof castor |
| US7328810B1 (en) * | 2003-12-22 | 2008-02-12 | Lester Kent Rhodes | Crane supporting apparatus |
| CN102416933A (en) * | 2010-09-28 | 2012-04-18 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102502431A (en) * | 2011-11-08 | 2012-06-20 | 中联重科股份有限公司 | Auxiliary supporting device of crane and crane with auxiliary supporting device |
| CN202624176U (en) * | 2012-05-21 | 2012-12-26 | 西安建筑科技大学 | Auxiliary supporting device for vehicle and movable engineering machinery |
| CN102923100A (en) * | 2012-11-13 | 2013-02-13 | 郑州新大方重工科技有限公司 | Crane landing leg provided with caterpillar track traveling mechanism and wheel suspension traveling mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103193168A (en) | 2013-07-10 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20160410 |
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| CF01 | Termination of patent right due to non-payment of annual fee |