CN2937072Y - Three-joint support expansion device controlled by double-sleeve expansion hydro-cyliner - Google Patents
Three-joint support expansion device controlled by double-sleeve expansion hydro-cyliner Download PDFInfo
- Publication number
- CN2937072Y CN2937072Y CN 200620087795 CN200620087795U CN2937072Y CN 2937072 Y CN2937072 Y CN 2937072Y CN 200620087795 CN200620087795 CN 200620087795 CN 200620087795 U CN200620087795 U CN 200620087795U CN 2937072 Y CN2937072 Y CN 2937072Y
- Authority
- CN
- China
- Prior art keywords
- stage
- supporting leg
- piston rod
- order
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Jib Cranes (AREA)
- Actuator (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to a telescopic device for controlling the three section outrigger of a double sleeve telescopic oil cylinder, in particular to a telescopic device of more outrigger of a hoisting equipment, which comprises a double sleeve telescopic oil cylinder, a two one-way throttle valve, a first stage piston rod and a second stage cylinder piston rod are arranged on the double sleeve telescopic oil cylinder, the first stage piston rod and a joint bearing and a jointed shaft are fixed on the chassis of the hoisting equipment, the second stage cylinder piston rod is fixed to the second section of outrigger in the first stage cylinder, the front end of the cylinder tube in the second stage cylinder and the joint bearing and the jointed shaft are connected with a third section of outrigger, the two one-way throttle valves control the serial actions of the double sleeve oil cylinder, the elastic collar, the joint bearing and a first stage end cover are arranged on the upper end of the first stage piston rod and control the first stage end cover, the first stage guide sleeve arranged on the first stage piston rod, the first stage cylinder, the second stage piston rod and the first stage piston. The utility model has the advantages of simple structure, convenient operation, adjustable outrigger distance, long distance of three section outriggers, and high resistance to capsizing and can be extensively used in different telescopic outrigger device on the chassis of hoisting equipment.
Description
Affiliated technical field:
The utility model relates to a kind of pair of sleeve telescopic oil cylinder control three joint supporting leg retractor devices, the particularly retractor device of hoisting crane more piece supporting leg.
Background technology:
At present, the supporting leg of hoisting crane mainly contains H type supporting leg and X type supporting leg and W-outrigger, mostly is two joint supporting legs, and common single-stage double acting telescopic oil cylinder is controlled the flexible of supporting leg.Its defective be short legs anti-tilt to cover power low, the restriction of hoisting crane chassis width, it is very long that two joint supporting legs can not be made, and influence the extension elongation of supporting leg, the resistance to capsizing of reduction hoisting crane.
Summary of the invention:
The purpose of this utility model provides a kind of pair of sleeve telescopic oil cylinder control three joint supporting leg retractor devices, and it is to adopt two sleeve telescopic oil cylinders, two one-way throttle valves are set on the oil cylinder, make two-stage oil cylinder piston sequentially-operating, to keep two joint movable supporting legs flexible in order, supporting leg is apart from scalable.
The two sleeve telescopic oil cylinder control three joint supporting leg retractor devices of the utility model take following technical scheme to realize, it is by oil cylinder and one-way throttle valve and its three joint telescopic outrigger, two one-way throttle valves and first order piston rod and second stage cylinder piston rod are set on two sleeve telescopic oil cylinders, first order piston rod and oscillating bearing and jointed shaft are fixed on the chassis of hoisting crane, being provided with second stage cylinder piston rod in the first order cylinder barrel is fastened on the second joint supporting leg, the cylinder barrel of second stage cylinder is connected with the 3rd joint supporting leg with oscillating bearing and jointed shaft by the front end journal stirrup, by two two sleeve oil cylinder sequentially-operatings of one-way throttle valve control, the control supporting leg is flexible in proper order, the second joint supporting leg of supporting leg stretches out earlier, the 3rd joint supporting leg of supporting leg stretches out again, shrink supporting leg and shrink the 3rd joint supporting leg earlier, shrink the second joint supporting leg again.The chassis of first segment supporting leg and hoisting crane is fastened on one, and the 3rd joint supporting leg is nested with in the second joint supporting leg, and the second joint supporting leg is nested with in the first segment supporting leg.An end is provided with circlip and oscillating bearing and first order end cap on the first order piston rod, and first order upper cover of piston rod is put first order orienting sleeve and first order cylinder barrel and second stage piston rod and first order piston.One-way throttle valve and second stage cylinder barrel and second stage orienting sleeve are set on the piston of the second stage, front end journal stirrup and second stage end cap and oscillating bearing and jointed shaft are set on the cylinder barrel of the second stage, be connected with the 3rd joint supporting leg.
The effect of the two sleeve telescopic oil cylinder control three joint supporting leg retractor devices of the utility model is simple in structure, easy to operate, adopt two sleeve telescopic oil cylinders, two one-way throttle valves are set on the oil cylinder, make two-stage oil cylinder piston sequentially-operating, to keep two joint movable supporting legs flexible in order, supporting leg is apart from scalable, three joint supporting leg distances, the resistance to capsizing height is widely used in telescopic outrigger device on the chassis of various hoisting cranes.
Description of drawings:
The two sleeve telescopic oil cylinder control three joint supporting leg retractor devices of the utility model will describe in further detail in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of two sleeve telescopic oil cylinder control three joint supporting leg retractor devices.
Fig. 2 is the structural representation of two sleeve telescopic oil cylinders.
1---the 3rd joint supporting leg 2---second joint supporting leg 3---first segment supporting leg 4---oil cylinder 5---back-up ring 6---bearing 7---first order piston rod 8---first order orienting sleeve 9---first order end cap 10---first order cylinder barrel 11---second stage cylinder barrel 12---first order piston 13---second stage piston 14---front end journal stirrup 15---flow regulating valve 16---second stage orienting sleeve 17---second stage end cap
The specific embodiment:
With reference to Fig. 1,2, the two sleeve telescopic oil cylinder control three joint supporting leg retractor devices of the utility model, it is by oil cylinder 4 and one-way throttle valve 15 and its three joint telescopic outrigger, two one-way throttle valves 15 and first order piston rod 7 and second stage cylinder piston rod are set on two sleeve telescopic oil cylinders 4, first order piston rod 7 and oscillating bearing 6 are fixed on the chassis of hoisting crane with jointed shaft, being provided with second stage piston rod in the first order cylinder barrel 10 is fastened on the second joint supporting leg 2, second stage cylinder barrel 11 is held with joint shaft 6 by front end journal stirrup 14 and jointed shaft is connected with the 3rd joint supporting leg 1, by two sleeve telescopic oil cylinder 4 sequentially-operatings of two one-way throttle valves, 15 controls, the control supporting leg is flexible in proper order, the second joint supporting leg 2 of supporting leg stretches out earlier, and the 3rd joint supporting leg 1 of supporting leg stretches out again.Shrink supporting leg and shrink the 3rd joint supporting leg 1 earlier, shrink the second joint supporting leg 2 again.First segment supporting leg 3 is fastened on one with the chassis of hoisting crane, and the 3rd joint supporting leg 1 is nested with in the second joint supporting leg 2, and the second joint supporting leg 2 is nested with in first segment supporting leg 3.An end is provided with circlip 5 and oscillating bearing 6 and first order end cap 9 on the first order piston rod 7, is nested with first order orienting sleeve 8 and first order cylinder barrel 10 and second stage piston rod and first order piston 12 on the first order piston rod 7.One-way throttle valve 15 and second stage cylinder barrel 11 and second stage orienting sleeve 16 are set on the second stage piston 13, front end journal stirrup 14 and second stage end cap 17 and oscillating bearing 6 and jointed shaft are set on the second stage cylinder barrel 11, be connected with the 3rd joint supporting leg 1.
The embodiment of the two sleeve telescopic oil cylinder control three joint supporting leg retractor devices of the utility model, it is by oil cylinder 4 and one-way throttle valve 15 and its three joint telescopic outrigger, two one-way throttle valves 15 and first order piston rod 7 and second stage cylinder piston rod are set on two sleeve telescopic oil cylinders 4, first order piston rod 7 and oscillating bearing 6 are fixed on the chassis of hoisting crane with jointed shaft, being provided with second stage piston rod in the first order cylinder barrel 10 is fastened on the second joint supporting leg 2, second stage cylinder barrel 11 is held with joint shaft 6 by front end journal stirrup 14 and jointed shaft is connected with the 3rd joint supporting leg 1, by two sleeve telescopic oil cylinder 4 sequentially-operatings of two one-way throttle valves, 15 controls, the control supporting leg is flexible in proper order, the second joint supporting leg 2 of supporting leg stretches out earlier, and the 3rd joint supporting leg 1 of supporting leg stretches out again.Shrink supporting leg and shrink the 3rd joint supporting leg 1 earlier, shrink the second joint supporting leg 2 again.First segment supporting leg 3 is fastened on one with the chassis of hoisting crane, and the 3rd joint supporting leg 1 is nested with in the second joint supporting leg 2, and the second joint supporting leg 2 is nested with in first segment supporting leg 3.An end is provided with circlip 5 and oscillating bearing 6 and first order end cap 9 on the first order piston rod 7, is nested with first order orienting sleeve 8 and first order cylinder barrel 10 and second stage piston rod and first order piston 12 on the first order piston rod 7.One-way throttle valve 15 and second stage cylinder barrel 11 and second stage orienting sleeve 16 are set on the second stage piston 13, front end journal stirrup 14 and second stage end cap 17 and oscillating bearing 6 and jointed shaft are set on the second stage cylinder barrel 11, be connected with the 3rd joint supporting leg 1.The operation supporting leg stretches out action: hydraulic oil passes through the rodless cavity that oil inlet enters first order cylinder by hydraulic reservoir and oil pump and change-over valve.One-way throttle valve 15 modulated pressure oil at first promote first order piston rod 7, drive the second joint supporting leg 2 and stretch out, and promote second stage piston rod and first order cylinder barrel 10 again, drive the 3rd joint supporting leg 1 and stretch out.Operation supporting leg contractive action: hydraulic oil passes through the rod chamber that oil inlet enters first order cylinder by hydraulic reservoir and oil pump with change-over valve.One-way throttle valve 15 modulated pressure oil enter the rod chamber of second stage cylinder, at first promote second stage piston rod and first order cylinder barrel 10, drive second stage cylinder barrel and shrink, and the 3rd joint supporting leg 1 at first shrinks.Promote first order piston rod 7 again and shrink, drive the second joint supporting leg 2 and shrink.Finish whole supporting leg contractive action sequential working.
Claims (1)
1, a kind of pair of sleeve telescopic oil cylinder control three joint supporting leg retractor devices, it is by oil cylinder (4) and one-way throttle valve (15) and its three joint telescopic outrigger, it is characterized in that being provided with on two sleeve telescopic oil cylinders (4) two one-way throttle valves (15) and first order piston rod (7) and second stage cylinder piston rod, first order piston rod (7) and oscillating bearing (6) are fixed on the chassis of hoisting crane with jointed shaft, being provided with second stage piston rod in the first order cylinder barrel (10) is fastened on the second joint supporting leg (2), second stage cylinder barrel (11) is held with joint shaft (6) by front end journal stirrup (14) and jointed shaft is connected with the 3rd joint supporting leg (1), by two sleeve telescopic oil cylinder (4) sequentially-operatings of two one-way throttle valves (15) control, the control supporting leg is flexible in proper order, first segment supporting leg (3) is fastened on one with the chassis of hoisting crane, the 3rd joint supporting leg (1) is nested with in the second joint supporting leg (2), the second joint supporting leg (2) is nested with in first segment supporting leg (3), the last end of first order piston rod (7) is provided with circlip (5) and oscillating bearing (6) and first order end cap (9), be nested with first order orienting sleeve (8) and first order cylinder barrel (10) and second stage piston rod and first order piston (12) on the first order piston rod (7), one-way throttle valve (15) and second stage cylinder barrel (11) and second stage orienting sleeve (16) are set on the second stage piston (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087795 CN2937072Y (en) | 2006-08-09 | 2006-08-09 | Three-joint support expansion device controlled by double-sleeve expansion hydro-cyliner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087795 CN2937072Y (en) | 2006-08-09 | 2006-08-09 | Three-joint support expansion device controlled by double-sleeve expansion hydro-cyliner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937072Y true CN2937072Y (en) | 2007-08-22 |
Family
ID=38361095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620087795 Expired - Fee Related CN2937072Y (en) | 2006-08-09 | 2006-08-09 | Three-joint support expansion device controlled by double-sleeve expansion hydro-cyliner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937072Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934974A (en) * | 2010-05-07 | 2011-01-05 | 常州东方机电成套有限公司 | Bridge crane telescopic sleeve type rigid positioning device |
| CN102009913A (en) * | 2010-11-26 | 2011-04-13 | 大连华锐股份有限公司 | Crane hoisting mechanism with extension sleeve |
| WO2011072523A1 (en) * | 2009-12-15 | 2011-06-23 | 湖南三一智能控制设备有限公司 | Supporting device for crane and crane thereof |
| CN102410278A (en) * | 2011-11-11 | 2012-04-11 | 三一重工股份有限公司 | Multistage single-action hydraulic cylinder and engineering machinery provided with same |
| CN102489981A (en) * | 2011-12-05 | 2012-06-13 | 中联重科股份有限公司 | Auxiliary device for mounting or dismounting parts |
| CN103466478A (en) * | 2013-09-18 | 2013-12-25 | 徐州重型机械有限公司 | Supporting leg stretching control system and crane |
-
2006
- 2006-08-09 CN CN 200620087795 patent/CN2937072Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072523A1 (en) * | 2009-12-15 | 2011-06-23 | 湖南三一智能控制设备有限公司 | Supporting device for crane and crane thereof |
| CN101934974A (en) * | 2010-05-07 | 2011-01-05 | 常州东方机电成套有限公司 | Bridge crane telescopic sleeve type rigid positioning device |
| CN102009913A (en) * | 2010-11-26 | 2011-04-13 | 大连华锐股份有限公司 | Crane hoisting mechanism with extension sleeve |
| CN102410278A (en) * | 2011-11-11 | 2012-04-11 | 三一重工股份有限公司 | Multistage single-action hydraulic cylinder and engineering machinery provided with same |
| CN102489981A (en) * | 2011-12-05 | 2012-06-13 | 中联重科股份有限公司 | Auxiliary device for mounting or dismounting parts |
| CN102489981B (en) * | 2011-12-05 | 2014-03-19 | 中联重科股份有限公司 | Auxiliary device for mounting or dismounting parts |
| CN103466478A (en) * | 2013-09-18 | 2013-12-25 | 徐州重型机械有限公司 | Supporting leg stretching control system and crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2937072Y (en) | Three-joint support expansion device controlled by double-sleeve expansion hydro-cyliner | |
| CN1963239B (en) | Cylinder set for use in retraction mechanism | |
| CN202080842U (en) | Crane and multi-arm telescoping mechanism thereof | |
| CN201851425U (en) | Two-stage telescopic oil cylinder, hydraulic control system and telescopic mechanism for suspension arm of crane | |
| CN201647855U (en) | Crane and hydraulic control system for single-cylinder bolt type telescopic mechanism thereof | |
| CN201220896Y (en) | Two-stage telescoping built-in oil conduit supporting leg | |
| CN104955763A (en) | A telescopic boom | |
| CN203098467U (en) | Buffering oil cylinder | |
| CN103527558A (en) | Telescopic cylinder supporting device and engineering machine | |
| JP2009030652A (en) | Multi-stage telescopic drive device | |
| US20130055658A1 (en) | Telescopic crane arm | |
| CN105480879B (en) | Telescopic multifunctional intelligent operation arm | |
| CN110454460B (en) | Quick oil cylinder with pressurization function | |
| CN201158573Y (en) | High-intelligence miniature crank arm platform for work high above ground | |
| CN202089709U (en) | Expansion device for using double-sleeve oil cylinder to control three sections of supporting legs of crane | |
| CN209261941U (en) | The hydraulic control system and crane of crane | |
| CN1546873A (en) | Single rod double acting symmetrical hydraulic cylinder with built-in displacement sensor | |
| CN204752018U (en) | Multistage hydro -cylinder telescoping device | |
| CN202829500U (en) | Telescopic arm rest and hydraulic oil circuit and engineering vehicle | |
| CN2821245Y (en) | Serial conjoined oil cylinder | |
| CN202971389U (en) | Oil cylinder and multi-cylinder multi-stage telescopic arm serving as oil conveying pipe | |
| CN210068402U (en) | Variable plunger pump | |
| CN202561222U (en) | Hydraulic-control one-way valve with controllable-size valve port | |
| CN202107490U (en) | Platform leveling device of an overhead working vehicle | |
| CN204958243U (en) | Sections two, arm telescopic machanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20090909 |