CN202323733U - Bridge girder erection machine rear supporting leg capable of walking independently - Google Patents
Bridge girder erection machine rear supporting leg capable of walking independently Download PDFInfo
- Publication number
- CN202323733U CN202323733U CN 201120473074 CN201120473074U CN202323733U CN 202323733 U CN202323733 U CN 202323733U CN 201120473074 CN201120473074 CN 201120473074 CN 201120473074 U CN201120473074 U CN 201120473074U CN 202323733 U CN202323733 U CN 202323733U
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- bridge girder
- girder erection
- wheel
- erection machine
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Abstract
The utility model relates to a bridge girder erection machine rear supporting leg capable of walking independently, which belongs to the field of section assembled bridge girder erection machines. Mudsills of the bridge girder erection machine rear supporting leg are double mudsills and adopt a double-beam structure. A hydraulic jacking oil cylinder and the bottom of an inner flexible sleeve are connected with the double mudsills respectively, the inner flexible sleeve and an outer flexible sleeve are sleeved together and relatively fixed through a radial pin shaft, a riding wheel mechanism is fixedly connected on top of the outer flexible sleeve and bears vertical load delivered to a rear supporting leg from a bridge girder erection machine girder, a walking mechanism is connected with an inner wall of the outer flexible sleeve, and wheels are hung on a vertical-moving track of the bridge girder erection machine and are driven by a motor to walk to an appointed position along the vertical-moving track of the bridge girder erection machine independently. The bridge girder erection machine rear supporting leg not only has an independent walking function, can adjust vertical height, and improves self-balancing performance so as to improve working efficiency of the bridge girder erection machine, guarantee stability of the whole machine when the bridge girder erection machine moves vertically to pass through hole, and reduce stress of a girder structure when the bridge girder erection machine moves vertically to pass through hole.
Description
Technical field
The bridge formation machine rear support leg of a kind of traveling of relying on oneself of the utility model belongs to section assembling bridge formation machine field.
Background technology
Bridge formation machine major function is that the beam sheet is mentioned; Put down after being transported to the position then; Accomplishing prefabricated case beam T framework and establish, hang and set up and action such as complete machine vertical shift via hole, is the indispensable bridge formation main mechanical of bridge construction in a large number that efficiently place an iron railway in line and the expressway construction process.The bridge formation machine generally includes by two hinged girders of flat contact, is provided with forward and backward supporting leg at the two ends of girder, is provided with two middle supporting legs in the centre of girder, and track is provided with two lifting overhead traveling cranes above the girder.
Rear support leg is very important components of one in bridge formation machine, and is directly related with operating efficiency, main beam structure stress and the bridge formation machine vertical shift via hole stability of bridge formation machine.Its effect mainly is the vertical load when bearing supporting leg and bridge formation machine vertical shift via hole in the bridge formation machine transhipment, and makes the smooth vertical shift via hole of bridge formation machine.Existing bridge formation machine rear support leg is connected through bolt with crane ' s major girder and is fixed together; Vertical height through the inside and outside telescopic that is connected with bottom girder and the adjustment of the hydraulic lifting oil cylinder between inside and outside telescopic rear support leg; But the traveling of can not relying on oneself; Need on bridge floor, lay and have bad luck track, the machine operating efficiency of therefore building bridge is lower, and main beam structure stress is bigger when causing building bridge machine vertical shift via hole.
The utility model content
The purpose of the utility model provides a kind of bridge formation machine rear support leg of the traveling of relying on oneself; Make bridge formation machine rear support leg not only can adjust its vertical height; And give the rear support leg traveling function of relying on oneself, promote its self-balancing performance, thereby improve the operating efficiency of bridge formation machine; Guarantee bridge formation machine vertical shift via hole complete machine stability, and the stress of main beam structure when reducing bridge formation machine vertical shift via hole.
The bridge formation machine rear support leg of a kind of traveling of relying on oneself of the utility model comprises bottom girder, the hydraulic lifting oil cylinder; Inside and outside telescopic, running mechanism and wheel holding mechanism, inside and outside telescopic socket; Warp is the bearing pin relative fixed radially, and the hydraulic lifting oil cylinder is arranged between the inside and outside telescopic, and characteristics are that bottom girder is the Double bottom beam; Hydraulic lifting oil cylinder, interior telescopic bottom are connected with the Double bottom beam respectively, and running mechanism is made up of wheel, motor and driving shaft system and vehicle wheel frame, and wheel and motor and driving shaft system are arranged in the vehicle wheel frame; Vehicle wheel frame is connected wall within the outer telescopic through connecting free bearing; Wheel holding mechanism is fixedly connected on outer telescopic top, and the running mechanism wheel hangs on the bridge formation machine vertical shift track, driven along this orbital motion by motor and driving shaft system.
Above-mentioned wheel holding mechanism is made up of support roller casing, roller and directive wheel; Roller, directive wheel are separately positioned in the middle of the support roller casing, the side; The support roller casing is connected with outer telescopic top, and crane ' s major girder soffit and roller touch slippage, and directive wheel is close to girder edge of a wing guiding.
Two outer telescopics of correspondence connect relative fixed through flat contact symmetry between above-mentioned Double bottom beam.
In above-mentioned telescopic bottom and hydraulic lifting oil cylinder respectively with the hinge tie point of bottom girder not on same horizon.
The utility model rear support leg bottom girder has adopted twin-spar construction, inside and outside telescopic socket, and warp is the bearing pin relative fixed radially; Wheel holding mechanism is fixedly connected on outer telescopic top, directly bears the vertical load that crane ' s major girder passes to rear support leg, and running mechanism is connected outer telescopic inwall; Wheel hangs on the bridge formation machine vertical shift track, driven by motor and driving shaft system and rely on oneself along the traveling of bridge formation machine vertical shift track, through retraction hydraulic jack lifting body; Wheel holding mechanism and crane ' s major girder are thrown off, and bottom girder leaves bridge floor to reasonable altitudes, and the wheel of running mechanism contacts with walking rails; Utilize fixing outer telescopic of bearing pin and interior telescopic; The deadweight that bear rear support leg by running mechanism this moment, starter motor and driving shaft system, the rear support leg traveling moves forward to assigned address; When the hydraulic jack lifting body protruding; Wheel holding mechanism contacts with the crane ' s major girder soffit; Running mechanism and walking rails are thrown off, and utilize fixing outer telescopic of bearing pin and interior telescopic, and the vertical load that wheel holding mechanism will bear crane ' s major girder is directly passed to rear support leg; Rear support leg becomes the rear fulcrum of bridge formation machine, supporting leg transhipment and complete machine vertical shift via hole during the bridge formation machine promptly carries out; The twin-spar construction of the design's bottom girder in addition, the bearing pin pin joint of interior telescopic, hydraulic lifting oil cylinder and bottom girder has further strengthened the stability of rear support leg self not on same horizon, help steadily vertical shift via hole smoothly of bridge formation machine comprehensively.
Description of drawings
Fig. 1 the utility model rear support leg front view
Fig. 2 the utility model rear support leg lateral view
Fig. 3 the utility model wheel holding mechanism lateral view
Fig. 4 the utility model running mechanism front view
Fig. 5 the utility model running mechanism sectional view
The specific embodiment
Combine accompanying drawing to further specify the specific embodiment of the utility model at present.
The design's bottom girder 1 is the Double bottom beam; Two interior telescopics 2 utilize the hinged correspondence respectively of bearing pin to be connected on the Double bottom beam 1; Outer telescopic 3 and interior telescopic 2 sockets; Hydraulic jack lifting body 4 is arranged between outer telescopic 3 and the interior telescopic 2 hinged with bottom girder, and interior telescopic 2, hydraulic lifting oil cylinder 4 are respectively L1, L2 with the bearing pin pin joint of bottom girder 1, and this bearing pin pin joint L1, L2 be not on same horizon; Utilize the height of hydraulic jack lifting body 4 adjustment rear support legs, utilize radially bearing pin that outer telescopic 3 is fixing with interior telescopic 2 after adjusting to the right place.
Wheel holding mechanism 5 is made up of support roller casing 5-1, roller 5-2 and directive wheel 5-3; Roller 5-2, directive wheel 5-3 are separately positioned in the middle of the support roller casing, the side; The support roller casing 5-1 of wheel holding mechanism 5 telescopic 3 tops outside bolt is fastened on; When wheel holding mechanism contacted with the crane ' s major girder soffit, girder can slippage on the roller 5-2 of wheel holding mechanism, and directive wheel 5-3 is close to the girder lower chord lower cover edge of a wing and play the guiding role; Running mechanism 6 is that 6-3 forms by vehicle wheel frame 6-1, wheel 6-2 and motor and driving shaft; Wheel 6-2 and motor and driving shaft are that 6-3 is arranged in the vehicle wheel frame 6-1; Be connected wall within the outer telescopic 3 through connecting free bearing 3-1; The wheel 6-2 of running mechanism hangs on the crane ' s major girder channel-section steel vertical shift track, and receiving motor and driving shaft is that 6-3 drives, can be along this vertical shift track traveling.
During supporting leg, at first, the traveling of operation rear support leg moves forward to assigned address: hydraulic jack lifting body 4 promptly bounces back in the construction transhipment of bridge formation machine; Wheel holding mechanism 5 is thrown off with crane ' s major girder, and bottom girder 1 leaves bridge floor to reasonable altitudes, and the wheel 6-2 of running mechanism contacts with walking rails; Utilize fixing outer telescopic 3 of bearing pin and interior telescopic 2; The deadweight that this moment, running mechanism 6 bore rear support leg, starter motor and driving shaft are 6-3, the rear support leg traveling moves forward to assigned address; Then; Protruding hydraulic jack lifting body 4, wheel holding mechanism 5 are promptly closely connected respectively with crane ' s major girder, bottom girder 1 and bridge floor, and 6 of running mechanisms and walking rails are thrown off; Utilize fixing outer telescopic 3 of bearing pin and interior telescopic 2; The vertical load that wheel holding mechanism will bear crane ' s major girder is directly passed to rear support leg, and this moment, rear support leg became the rear fulcrum of bridge formation machine, supporting leg transhipment during bridge formation machine lifting overhead traveling crane promptly carries out; After the supporting leg transhipment is accomplished in the bridge formation machine; Then complete machine vertical shift via hole; Crane ' s major girder slippage on the roller 5-2 of wheel holding mechanism, the directive wheel 5-3 of wheel holding mechanism is close to girder lower chord lower cover edge of a wing guiding, and the horizontal frictional force of crane ' s major girder then passes to rear support leg through wheel holding mechanism 5.
Claims (4)
1. the bridge formation machine rear support leg of the traveling of can relying on oneself comprises bottom girder, the hydraulic lifting oil cylinder; Inside and outside telescopic, running mechanism and wheel holding mechanism, inside and outside telescopic socket; Warp is the bearing pin relative fixed radially, and the hydraulic lifting oil cylinder is arranged between the inside and outside telescopic, it is characterized in that bottom girder is the Double bottom beam; Hydraulic lifting oil cylinder, interior telescopic bottom are connected with the Double bottom beam respectively, and running mechanism is made up of wheel, motor and driving shaft system and vehicle wheel frame, and wheel and motor and driving shaft system are arranged in the vehicle wheel frame; Vehicle wheel frame is connected wall within the outer telescopic through connecting free bearing; Wheel holding mechanism is fixedly connected on outer telescopic top, and the running mechanism wheel hangs on the bridge formation machine vertical shift track, driven along this orbital motion by motor and driving shaft system.
2. the bridge formation machine rear support leg of a kind of traveling of relying on oneself according to claim 1; It is characterized in that wheel holding mechanism is made up of support roller casing, roller and directive wheel; Roller, directive wheel are separately positioned in the middle of the support roller casing, the side; The support roller casing is connected with outer telescopic top, and crane ' s major girder soffit and roller touch slippage, and directive wheel is close to girder edge of a wing guiding.
3. the bridge formation machine rear support leg of a kind of traveling of relying on oneself according to claim 1 is characterized in that two outer telescopics of correspondence connect relative fixed through flat contact symmetry between the Double bottom beam.
4. the bridge formation machine rear support leg of a kind of traveling of relying on oneself according to claim 1, in it is characterized in that telescopic bottom and hydraulic lifting oil cylinder respectively with the hinge tie point of bottom girder not on same horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120473074 CN202323733U (en) | 2011-11-24 | 2011-11-24 | Bridge girder erection machine rear supporting leg capable of walking independently |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120473074 CN202323733U (en) | 2011-11-24 | 2011-11-24 | Bridge girder erection machine rear supporting leg capable of walking independently |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202323733U true CN202323733U (en) | 2012-07-11 |
Family
ID=46435717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120473074 Expired - Lifetime CN202323733U (en) | 2011-11-24 | 2011-11-24 | Bridge girder erection machine rear supporting leg capable of walking independently |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202323733U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631334A (en) * | 2014-12-23 | 2015-05-20 | 郑州新大方重工科技有限公司 | Novel middle supporting device of large-tonnage bridge girder erection machine |
| CN104727228A (en) * | 2015-03-31 | 2015-06-24 | 中铁工程机械研究设计院有限公司 | Telescopic landing leg device for tunnel bridge construction machine |
| CN107090779A (en) * | 2017-06-14 | 2017-08-25 | 山东恒堃机械有限公司 | A kind of mobile formwork front leg strut running gear |
| CN112227221A (en) * | 2020-11-06 | 2021-01-15 | 浙江中建路桥设备有限公司 | Rear support leg device of bridge girder erection machine |
-
2011
- 2011-11-24 CN CN 201120473074 patent/CN202323733U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631334A (en) * | 2014-12-23 | 2015-05-20 | 郑州新大方重工科技有限公司 | Novel middle supporting device of large-tonnage bridge girder erection machine |
| CN104727228A (en) * | 2015-03-31 | 2015-06-24 | 中铁工程机械研究设计院有限公司 | Telescopic landing leg device for tunnel bridge construction machine |
| CN104727228B (en) * | 2015-03-31 | 2016-05-25 | 中铁工程机械研究设计院有限公司 | Tunnel Bridge Erector telescopic support leg device |
| CN107090779A (en) * | 2017-06-14 | 2017-08-25 | 山东恒堃机械有限公司 | A kind of mobile formwork front leg strut running gear |
| CN112227221A (en) * | 2020-11-06 | 2021-01-15 | 浙江中建路桥设备有限公司 | Rear support leg device of bridge girder erection machine |
| CN112227221B (en) * | 2020-11-06 | 2024-05-10 | 浙江中建路桥设备有限公司 | Rear supporting leg device of bridge girder erection machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |