CN103193168A - Travelable supporting leg device of all-terrain crane - Google Patents
Travelable supporting leg device of all-terrain crane Download PDFInfo
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- CN103193168A CN103193168A CN2013101218432A CN201310121843A CN103193168A CN 103193168 A CN103193168 A CN 103193168A CN 2013101218432 A CN2013101218432 A CN 2013101218432A CN 201310121843 A CN201310121843 A CN 201310121843A CN 103193168 A CN103193168 A CN 103193168A
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- supporting leg
- travelable
- terrain crane
- crane
- bearing
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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 of utilizing the static lift heavy of supporting leg, but also has the function that lift heavy travels.At present, the structure of all terrain crane that uses both at home and abroad is that the bottom surface of the leg disc of four supporting legs is aspects.When hoisting crane carries out static lift heavy, four supporting legs are landed supporting hoisting crane and carry out static lift heavy; When the hoisting crane lift heavy travels, be that four supporting legs are packed up built on stilts, the load-bearing of roller tire is travelled, and at this moment, the total weight of hoisting crane is to bear by the chassis.The shortcoming of this structure is that load-carrying capacity and the anti-tipping ability of devices such as the tire on all terrain crane chassis and hydro pneumatic suspension is limited, has limited the lift heavy driveability of all terrain crane.
Summary of the invention
The walked support leg device that the purpose of this invention is to provide a kind of all terrain crane can overcome the shortcoming that prior art exists.
The present invention is achieved in that as shown in Figure 1, is that the wheel apparatus that can walk is installed 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 is packed in the concave spherical surface of supporting leg dish seat 3 upper ends, realizes bearing fit, and the top of supporting leg dish seat 3 connects by capping 2 usefulness bolt; Supporting leg dish seat 3 bottoms and discoid terminal pad 7 are connected by bolt, and 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 installed in the bearing seat 9 by bearing 10.As shown in Figure 3, the vertical center line A of the vertical center line B of road wheel and supporting leg has a spacing e.Simultaneously, as shown in Figure 5, in the vertical oil cylinder hydraulic of supporting leg system, series connection inserts a bi-bit bi-pass solenoid directional control valve 18 in the rod chamber oil circuit of hydraulic ram 17, and is connected with top petrol tank 20; Series connection inserts a bi-bit bi-pass solenoid directional control valve 18 in the rodless cavity oil circuit of hydraulic ram 17, and is connected with energy storage 19.
Advantage of the present invention with beneficial effect is: compare with existing leg disc device, the present invention both can be used for the operation of all terrain crane stationary support lift heavy, can be used for the operation of travelling of all terrain crane lift heavy again; Can share certain load for devices such as the hydro pneumatic suspension of all terrain crane and tires when lift heavy travels operation, improve the travel safety of operation of the lift heavy amount of travelling of hoisting crane, the anti-ability of tumbling that strengthens hoisting crane and lift heavy.
Description of drawings
Fig. 1 is the support leg device structural representation of walking provided by the present invention;
Fig. 2 is the support leg device cross section view of walking provided by the present invention;
Fig. 3 is the vertical center line of supporting leg in the structure of the present invention and the vertical center line biasing scheme drawing of road wheel;
Fig. 4 is the vertical oil cylinder hydraulic system schematic of supporting leg in the prior art;
Fig. 5 is the vertical oil cylinder hydraulic system schematic of supporting leg provided by the present invention.
Among the 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 centre distance between centers of tracks of the vertical center line of e-road wheel and supporting leg, P-oil-feed oil circuit, T-oil return circuit.
The specific embodiment
Under lift heavy travels the situation of operation, as depicted in figs. 1 and 2, hoisting crane supporting leg 1 passes to road wheel 11 by supporting leg dish seat 3, terminal pad 7, pivoting support 8, bearing seat 9, bearing 10 with a part of load, road wheel 11 contacts with ground, rolling is travelled, for the chassis tire of hoisting crane is shared certain load, improve the anti-ability of tumbling.At this moment, two bi-bit bi-pass solenoid directional control valves 18 in the 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 operation place unfairness, can make supporting leg 1 have certain retractility, and the vibration on buffering ground; Simultaneously, because the vertical center line B of road wheel and the vertical center line A of supporting leg have a spacing e, make road wheel 11 produce eccentric moment with the concavo-convex physical features on ground, change the rotating direction of road wheel 11 by pivoting support 8, can the walk crossing ability of support leg device of raising reduces the road surface to the friction of road wheel 11.
Under the situation of static lift heavy operation, by bolt 4, nut 5 and pad 6 are removed, parts below the supporting leg dish seat 3 are all removed, and two bi-bit bi-pass solenoid directional control valves 18 cut out, at this moment, have only supporting leg dish seat 3 to play a supportive role, hoisting crane supporting leg 1 directly contacts with ground or backing plate by supporting leg dish seat 3, plays a supportive role.
Claims (1)
1. the walked support leg device of an all terrain crane, it is characterized in that installing in the lower end of existing all terrain crane supporting leg (1) wheel apparatus that can walk, concave spherical surface is made in the upper end of the supporting leg dish seat (3) of this device, the hemisphere of supporting leg (1) lower end is packed in the concave spherical surface of supporting leg dish seat (3) upper end, the top of supporting leg dish seat (3) fastens with bolt by capping (2) and connects, supporting leg dish seat (3) bottom is connected by bolt 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 installed in the bearing seat (9) by bearing (10), between the vertical center line (B) of road wheel (11) and the vertical center line (A) of supporting leg (1) spacing (e) is arranged, while is a series connection bi-bit bi-pass solenoid directional control valve (18) in the rod chamber oil circuit of prior art supporting leg vertical hydraulic oil cylinder (17), and be connected with top petrol tank (20), series connection inserts a bi-bit bi-pass solenoid directional control valve (18) in the rodless cavity oil circuit of hydraulic ram (17), and is 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 true CN103193168A (en) | 2013-07-10 |
| CN103193168B CN103193168B (en) | 2015-02-25 |
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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 |
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| CN (1) | CN103193168B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236280A (en) * | 2014-05-29 | 2016-01-13 | 江苏大通重工有限公司 | Movable landing leg of small tower crane pulling-up trailer |
| 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 |
| CN113147692A (en) * | 2021-05-10 | 2021-07-23 | 徐州徐工施维英机械有限公司 | Hydraulic roller device, telescopic supporting leg with same and engineering machinery |
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236280A (en) * | 2014-05-29 | 2016-01-13 | 江苏大通重工有限公司 | Movable landing leg of small tower crane pulling-up trailer |
| 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 |
| CN113147692A (en) * | 2021-05-10 | 2021-07-23 | 徐州徐工施维英机械有限公司 | Hydraulic roller device, telescopic supporting leg with same and engineering machinery |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103193168B (en) | 2015-02-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20160410 |