CN202831045U - Excavator front axle swing frame balance locking mechanism - Google Patents
Excavator front axle swing frame balance locking mechanism Download PDFInfo
- Publication number
- CN202831045U CN202831045U CN 201220552744 CN201220552744U CN202831045U CN 202831045 U CN202831045 U CN 202831045U CN 201220552744 CN201220552744 CN 201220552744 CN 201220552744 U CN201220552744 U CN 201220552744U CN 202831045 U CN202831045 U CN 202831045U
- Authority
- CN
- China
- Prior art keywords
- oil
- way valve
- excavator
- way
- valve
- 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
Images
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
The utility model provides an excavator front axle swing frame balance locking mechanism which comprises two parallelly-arranged hydraulic oil cylinders. Extending ends of piston rods of the hydraulic oil cylinders are respectively hinged with one end of a front axle swing frame. An oil outlet pipe of a direction machine is connected with an oil inlet of a two-position three-way valve through a one-way valve. Two oil outlets of the two-position three-way valve are respectively connected with the two hydraulic oil cylinders. A gas storage barrel is connected with a one-way gas cylinder through a gas cutting-off brake switch. When an excavator is in a driving state and the gas cutting-off brake switch is on, the one-way gas cylinder enables a valve core to be located in a position where the oil inlet of the two-position three-way valve is communicated with both oil outlets of the two-position three-way valve. When the excavator is in an operation state and the gas cutting-off brake switch is off, the one-way gas cylinder enables the valve core to be located in a position where the oil inlet of the two-position three-way valve is disconnected with both oil outlets of the two-position three-way valve.
Description
Technical field
The utility model relates to a kind of excavator, is specifically related to excavator propons rocking carrier balance retaining mechanism.
Background technology
At present, excavator propons rocking carrier is for freely waving or spring damping, and effectiveness in vibration suppression is poor, and car load is vacillated now to the left, now to the right and rocked when causing the vehicle digging operation, and intact stability is poor during digging operation.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of excavator propons rocking carrier balance retaining mechanism, and it can play the cushioning balance effect when excavator is walked, and increases the stability of vehicle during operation.
In order to solve the problems of the technologies described above, the technical solution of the utility model is:
A kind of excavator propons rocking carrier balance retaining mechanism, comprise two hydraulic jacks that are set up in parallel, the piston rod external part of each hydraulic jack is hinged with an end of propons rocking carrier respectively, the steering wheel flowline is connected oil-in via one way valve and is connected with two position three-way valve, two oil-outs of two position three-way valve respectively with are connected hydraulic jack and connect, gas receiver is connected with one-way cylinder via the air-cut-off break switch, when excavator is in transport condition, during the air-cut-off break switch connection, one-way cylinder is so that spool is in the oil-in of two position three-way valve and the position that two oil-outs all are communicated with, when excavator is in job state, when the air-cut-off break switch disconnected, one-way cylinder was so that spool is in the oil-in of two position three-way valve and the position that two oil-outs all disconnect.
Above-mentioned excavator propons rocking carrier balance retaining mechanism also arranges overflow valve on the oil circuit between the oil-in of described one way valve and two position three-way valve.
When Vehicle Driving Cycle, the air-cut-off break switch connection, the action of cylinder band movable valve plug, so that the oil-in of two position three-way valve and two oil-outs are communicated with, hydraulic oil is in turn via entering two hydraulic jacks behind steering wheel flowline, one way valve, the two position three-way valve.Run under steam when jolting the road surface, propons drives rocking carrier and swings, swinging of rocking carrier acts on the hydraulic jack at its two ends, at this moment, because the existence of one way valve, two hydraulic jacks are in connected state, the hydraulic pressure oil mass is certain value, when a hydraulic jack is in compression or expansion state, simultaneously, another hydraulic jack is in expansion or compressive state, thereby realizes the cushioning effect on the road surface of jolting in the Vehicle Driving Cycle.
When digging operation, the air-cut-off break switch disconnects, car load is in on-position, when the air-cut-off break switch disconnects, one-way cylinder drives two-position three way limit valve spool and moves to the second place under the effect of cylinder inner spring, so that the oil-in of two position three-way valve and two oil-outs disconnect, each hydraulic cylinder all is in closed state, thereby realize hydraulic jack to the positioning and locking effect of rocking carrier, keep car load stablizing when excacation.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:
Fig. 1 is principle schematic of the present utility model.
Among the figure: 1 propons rocking carrier, 2 hydraulic jacks, 3 hydraulic jacks, 4 two position three-way valves, 5 overflow valves, 6 one way valves, 7 gas receivers, 8 air-cut-off break switches, 9 one-way cylinders.
The specific embodiment
As shown in Figure 1, a kind of excavator propons rocking carrier balance retaining mechanism, comprise two hydraulic jacks (2 and 3) that are set up in parallel, the piston rod external part of each hydraulic jack is hinged with an end of propons rocking carrier 1 respectively, the oil-in that the steering wheel flowline is connected with two position three-way valve via one way valve 6 connects, two oil-outs of two position three-way valve respectively with are connected hydraulic jack and connect, gas receiver 7 is connected connection via air-cut-off break switch 8 with one-way cylinder, when excavator is in transport condition, during the air-cut-off break switch connection, one-way cylinder is so that spool is in the oil-in of two position three-way valve and the position that two oil-outs all are communicated with, when excavator is in job state, when the air-cut-off break switch disconnected, one-way cylinder was so that spool is in the oil-in of two position three-way valve and the position that two oil-outs all disconnect.
Overflow valve 5 also is set on the oil circuit between the oil-in of described one way valve and two position three-way valve.When instantaneous pressure surpassed system pressure, system was by the overflow valve earial drainage.
Cost of the present utility model is low, and is easy to operate, realized that effectively wheel excavator when walking vibration damping is steady, no longer double swerve, the stable beneficial effect of vehicle body during digging operation.
Claims (2)
1. excavator propons rocking carrier balance retaining mechanism, it is characterized in that: comprise two hydraulic jacks that are set up in parallel, the piston rod external part of each hydraulic jack is hinged with an end of propons rocking carrier respectively, the steering wheel flowline is connected oil-in via one way valve and is connected with two position three-way valve, two oil-outs of two position three-way valve respectively with are connected hydraulic jack and connect, gas receiver is connected with one-way cylinder via the air-cut-off break switch, when excavator is in transport condition, during the air-cut-off break switch connection, one-way cylinder is so that spool is in the oil-in of two position three-way valve and the position that two oil-outs all are communicated with, when excavator is in job state, when the air-cut-off break switch disconnected, one-way cylinder was so that spool is in the oil-in of two position three-way valve and the position that two oil-outs all disconnect.
2. excavator propons rocking carrier balance retaining mechanism according to claim 1 is characterized in that: overflow valve also is set on the oil circuit between the oil-in of described one way valve and two position three-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220552744 CN202831045U (en) | 2012-10-26 | 2012-10-26 | Excavator front axle swing frame balance locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220552744 CN202831045U (en) | 2012-10-26 | 2012-10-26 | Excavator front axle swing frame balance locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202831045U true CN202831045U (en) | 2013-03-27 |
Family
ID=47942790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220552744 Expired - Fee Related CN202831045U (en) | 2012-10-26 | 2012-10-26 | Excavator front axle swing frame balance locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202831045U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088317A (en) * | 2014-07-12 | 2014-10-08 | 黄健 | Vehicle-mounted stabilizing structure of wheel-type hydraulic excavator |
| CN104442374A (en) * | 2014-11-18 | 2015-03-25 | 绍兴前进齿轮箱有限公司 | Steering drive axle for agricultural machine |
-
2012
- 2012-10-26 CN CN 201220552744 patent/CN202831045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088317A (en) * | 2014-07-12 | 2014-10-08 | 黄健 | Vehicle-mounted stabilizing structure of wheel-type hydraulic excavator |
| CN104442374A (en) * | 2014-11-18 | 2015-03-25 | 绍兴前进齿轮箱有限公司 | Steering drive axle for agricultural machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203637503U (en) | Amphibiousness vehicle hydraulic folding and unfolding suspension device | |
| CN202831045U (en) | Excavator front axle swing frame balance locking mechanism | |
| CN205780038U (en) | A kind of motion dash-control interlock of cylinder | |
| CN102285599B (en) | Crane and double-counterweight-cylinder hydraulic control system thereof | |
| CN107914536A (en) | The spacing hydro-pneumatic spring in the two poles of the earth and use its suspension hydraulic system | |
| CN205331278U (en) | Parking braking system and car | |
| CN102720232B (en) | Damping device of swing arms of slipping steering loaders | |
| CN103277449B (en) | Control valve set having load maintaining function and buffering vibration-reducing function | |
| CN203428821U (en) | Variable-amplitude cylinder buffer device and crane | |
| CN103879257A (en) | Suspension valves, oil gas suspension control system and engineering vehicle | |
| CN203093658U (en) | Novel oil gas suspension system | |
| CN204298037U (en) | Propons leaf spring retaining mechanism | |
| CN202782561U (en) | Lifting shaft system of vehicle provided with hydro-pneumatic suspension | |
| CN201769815U (en) | Hydraulic brake valve of full hydraulic brake system of engineering machinery | |
| CN103407916A (en) | Luffing oil cylinder buffer device and crane | |
| CN201646697U (en) | Hydraulic braking system and articulated-steering tractor provided with same | |
| CN202937535U (en) | Hydraulic reversing combination valve | |
| CN204196647U (en) | Suspension valve, hydro pneumatic suspension control system and engineering truck | |
| CN203567706U (en) | Hydraulic braking control system | |
| CN203528230U (en) | Wheel crane and suspension frame mechanism thereof | |
| CN107792119A (en) | Act locking separate type electrohydraulic switch machine | |
| CN203335507U (en) | Electromagnetism and fluid power combination control valve | |
| CN202782562U (en) | Height control system provided with hydro-pneumatic suspension vehicle | |
| CN202062969U (en) | Oil gas hanging system used for rear axle in vehicle | |
| CN202130436U (en) | Speed slowing emergency controllable hydraulic brake device for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |