CN208918936U - The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery - Google Patents
The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery Download PDFInfo
- Publication number
- CN208918936U CN208918936U CN201821756091.1U CN201821756091U CN208918936U CN 208918936 U CN208918936 U CN 208918936U CN 201821756091 U CN201821756091 U CN 201821756091U CN 208918936 U CN208918936 U CN 208918936U
- Authority
- CN
- China
- Prior art keywords
- valve
- free
- solenoid valve
- hook
- control device
- 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.)
- Active
Links
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model discloses the hydraulic control devices and dynamic compaction machinery of a kind of free off the hook hoist engine of dynamic compaction machinery, the wherein hydraulic control device of the free off the hook hoist engine of dynamic compaction machinery, including gear pump, overflow valve and interior swollen solenoid valve, gear pump is connected to by oil circuit with interior swollen solenoid valve, it further include free off the hook solenoid valve and the check valve being arranged on oil circuit along liquid flow patterns, free off the hook solenoid valve is connect with fuel tank, pipeline connection between overflow valve and gear pump and free off the hook solenoid valve, when elevator carries out fixed point ramming, oil communication, when hoist engine is in non-ramming state, free off the hook solenoid valve is in close state, free off the hook solenoid valve is connected to fuel tank, the safety in utilization of dynamic compaction machinery improves.
Description
Technical field
The utility model relates to technical field of hydraulic, in particular to a kind of liquid of the free off the hook hoist engine of dynamic compaction machinery
Pressure control device.The utility model further relates to a kind of dynamic compaction machinery including above-mentioned hydraulic control device.
Background technique
For dynamic compaction machinery in the foundation construction of compacting foundation, crawler belt type dynamic compaction machine can be applied to the foundation construction of compacting foundation, packet
Include processing gravelly soil, sandy soil, miscellaneous fill, low saturation silt, Clayey Soil Ground etc..Strong rammer works scope is related to industry and the people
With building, road and rail roadbed construction, harbour, airport, power station and man-made island etc. can also be engaged in the lifting operation of construction site
With fitter's work.
When ramming works, hammer ram is hung on detacher, and operation elevator handle makes winding lifting, passes through the wirerope on reel
Hammer ram is pulled to be promoted, when hammer ram is promoted to object height, the mechanical position limitation of detacher is automatically opened, and hammer ram freely falling body is fallen to
Ground, i.e. ramming are primary, open the clutch of free off the hook hoist engine at this time, under realizing detacher together with wirerope quickly
It falls, until closing clutch when detacher drops to hammer ram height, hammer ram being suspended on detacher, a working cycles are completed.
Strong rammer machine hydraulic system mainly includes hoisting circuit, luffing circuit, rotary loop, walking loop, oil of getting off
Cylinder circuit, free off the hook circuit, oil return cooling circuit etc., interior swollen hem type hoist engine, when hollow hook lowering, interior swollen clutch is beaten
Open, the free off the hook of elevator, when hook is close to ground, close in the swollen automatically controlled button of clutch, while foot is stepped on external contracting brake brake and is stepped on
Plate, free off the hook stop.In control loop, pioneer pump provides control oil to elevator handle, and operator passes through operation elevator
Handle is passed through oil is controlled in pilot valve, and is passed through phase in hoisting circuit for oil is controlled by the logic control inside pilot valve
In corresponding hydraulic valve, and then hoisting circuit is controlled.In executing circuit, hydraulic valve obtains meeting after control oil
Pressure, flow and direction controlling are carried out to hydraulic oil, the movement of elevator progress raising or decentralization is made by corresponding oil circuit.It is hydraulic
Control loop, as shown in Figure 1, gear pump 01 and engine are direct-connected, after being turned on engine, the hydraulic oil for flowing into gear pump 01 passes through
It builds the pressure, after pressure reaches the cracking pressure of overflow valve 02, returns to fuel tank by overflow valve 02.When needing free off the hook, long-pressing
Push button on handle opens interior swollen solenoid valve 03, and oil liquid enters swollen oil cylinder 06 in elevator, and interior swollen oil cylinder is opened, and push the spring makes
Swollen clutch is opened in obtaining, the free off the hook of reel；When hook falls on object height, push button in release handle, close in it is swollen
Solenoid valve 03 closes interior swollen oil cylinder and clutch, while foot steps on outer armful of foot valve 04, and oil liquid, which enters, embraces oil cylinder 05 outside elevator,
Oil cylinder closure is embraced outside, so that external contracting brake checks hoist engine, free off the hook stops.
Since free off the hook operation only needs the several seconds can be completed, but the other times of free off the hook are not used in complete machine,
The big-flow high-pressure oil of the system all passes through 02 overflow of overflow valve, oil temperature can be made to increase, and oil viscosity decline influences complete machine
Can, so that the safety in utilization of dynamic compaction machinery reduces.
Therefore, the safety in utilization for how improving dynamic compaction machinery is those skilled in the art's technical problem urgently to be resolved.
Utility model content
The purpose of the utility model is to provide a kind of hydraulic control device of the free off the hook hoist engine of dynamic compaction machinery, dynamic compaction machineries
Safety in utilization improve.The another object of the utility model is to provide a kind of dynamic compaction machinery including above-mentioned hydraulic control device.
To achieve the above object, the utility model provides a kind of hydraulic control dress of free off the hook hoist engine of dynamic compaction machinery
It sets, including gear pump, overflow valve and interior swollen solenoid valve, it further includes edge that the gear pump, which is connected to by oil circuit with interior swollen solenoid valve,
Free off the hook solenoid valve and check valve on the oil circuit, the free off the hook solenoid valve and fuel tank is arranged in liquid flow patterns
Connection, interior pipeline connection between the overflow valve and the gear pump and the free off the hook solenoid valve, when elevator is determined
When point ramming, the oil communication, when hoist engine is in non-ramming state, the free off the hook solenoid valve, which is in, closes shape
State, the free off the hook solenoid valve are connected to the fuel tank.
Preferably, the oil circuit further includes hydraulic directional valve, and the hydraulic directional valve is two-position three-way valve, and described surge is changed
It is connect to the P mouth of valve with free off the hook solenoid valve, the A mouth of the hydraulic directional valve is connect with the check valve, and described surge is changed
It is connect to the B mouth of valve with interior swollen solenoid valve.
It preferably, further include elevator handle, the elevator handle is connect by shuttle valve with the hydraulic directional valve, and institute is controlled
State hydraulic directional valve commutation.
Preferably, the overflow valve, the interior swollen solenoid valve, the free off the hook solenoid valve, the hydraulic directional valve and
The check valve is integrated on a hydraulic valve block.
It preferably, further include the protective shell being arranged on the outside of the hydraulic valve block.
It preferably, further include the outer pedal stroke switch embraced foot valve and the outer armful of foot valve bottom end is set, it is described
It is foot-operated formed interior swollen solenoid valve described in switch control obtain it is electric.
Preferably, further include accumulator on the pipeline being connected between the interior swollen solenoid valve and the check valve.
Preferably, the interior swollen solenoid valve is two-position three-way valve, and the interior swollen solenoid valve is nitrile rubber valve.
Preferably, the switch of the free off the hook solenoid valve is arranged on the control panel of driver's cabin.
A kind of dynamic compaction machinery, the hydraulic control device including free off the hook hoist engine, the free off the hook hoist engine it is hydraulic
Control device is hydraulic control device described in any of the above embodiments.
In the above-mentioned technical solutions, the hydraulic control of the free off the hook hoist engine of dynamic compaction machinery provided by the utility model fills
It sets, including gear pump, overflow valve and interior swollen solenoid valve, it further includes along liquid that gear pump, which is connected to by oil circuit with interior swollen solenoid valve,
Free off the hook solenoid valve and check valve on oil circuit is arranged in the type of flow, and free off the hook solenoid valve is connect with fuel tank, overflow valve
Pipeline connection between gear pump and free off the hook solenoid valve, when elevator carries out fixed point ramming, oil communication works as elevator
When machine is in non-ramming state, free off the hook solenoid valve is in close state, and free off the hook solenoid valve is connected to the fuel tank.
As can be seen from the above description, in hydraulic control device provided by the present application, by the way that free off the hook solenoid valve is arranged,
Do not operate elevator movement when, the oil liquid of free off the hook hydraulic system is released, i.e., using handle operation elevator raising or
When decentralization acts, the oil liquid of free off the hook hydraulic system can also without overflow direct oil return box, avoid system heat generation,
Improve the safety in utilization of dynamic compaction machinery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the hydraulic control device of traditional free off the hook hoist engine；
Fig. 2 is the structural representation of the hydraulic control device of free off the hook hoist engine provided by the utility model embodiment
Figure.
Wherein in Fig. 1-2: 01- gear pump, 02- overflow valve, swollen solenoid valve in 03- embrace foot valve, outside 05- elevator outside 04-
Embrace oil cylinder, swollen oil cylinder in 06- elevator；
The free off the hook solenoid valve of 1- gear pump, 2- overflow valve, 3-, 4- hydraulic directional valve, 5- accumulator, 6- check valve, 7-
Foot valve is embraced outside interior swollen solenoid valve, 8-, oil cylinder is embraced outside 9- elevator, swollen oil cylinder, 11- shuttle valve, 12- elevator handle in 10- elevator.
Specific embodiment
The core of the utility model is to provide a kind of hydraulic control device of free off the hook hoist engine of dynamic compaction machinery, dynamic compaction machinery
Safety in utilization improve.Another core of the utility model is to provide a kind of dynamic compaction machinery including above-mentioned hydraulic control device.
It is with reference to the accompanying drawing and real in order to make those skilled in the art more fully understand the technical solution of the utility model
Applying mode, the utility model is described in further detail.
Figure Fig. 2 is please referred to, in a specific embodiment, the utility model specific embodiment provides dynamic compaction machinery freely
The hydraulic control device of off the hook hoist engine, including gear pump 1, overflow valve 2 and interior swollen solenoid valve 7, gear pump 1 by oil circuit with it is interior
Swollen solenoid valve 7 is connected to, and further includes free off the hook solenoid valve 3 and the check valve 6 being arranged on oil circuit along liquid flow patterns, freely
Off the hook solenoid valve 3 is connect with fuel tank, and interior pipeline connection, works as volume between overflow valve 2 and gear pump 1 and free off the hook solenoid valve 3
It raises when carrying out fixed point ramming, oil communication, when hoist engine is in non-ramming state, free off the hook solenoid valve 3, which is in, closes shape
State, free off the hook solenoid valve 3 are connected to fuel tank.Free off the hook solenoid valve 3 can be normally closed solenoid valve, not operate elevator movement
When, the oil liquid of free off the hook hydraulic system is released.
Further, oil circuit further includes hydraulic directional valve 4, and hydraulic directional valve 4 is two-position three-way valve, the P mouth of hydraulic directional valve 4
It is connect with free off the hook solenoid valve 3, the A mouth of hydraulic directional valve 4 is connect with check valve 6, the B mouth and interior swollen electricity of hydraulic directional valve 4
Magnet valve 7 connects.When pinpointing ramming, when not operating free off the hook movement, hydraulic directional valve 4 is added, is rolled up so that being operated in handle
The oil liquid of free off the hook hydraulic system can also be released when raising movement.
Further, which further includes elevator handle 12, and elevator handle 12 is changed by shuttle valve 11 with surging
It is connected to valve 4, control hydraulic directional valve 4 commutates.
Preferably, overflow valve 2, interior swollen solenoid valve 7, free off the hook solenoid valve 3, hydraulic directional valve 4 and check valve 6 are integrated in
On one hydraulic valve block.Overflow valve 2, free off the hook solenoid valve 3, hydraulic directional valve 4, check valve 6, interior swollen solenoid valve 7 are integrated
For a hydraulic valve block, platform occupied space is saved, reduces external pipeline, reduces system flow resistance.
In order to improve the safety in utilization for using hydraulic valve block, it is preferable that the hydraulic control device further includes being arranged hydraulic
Protective shell on the outside of valve block.
Preferably, which further includes the foot-operated row that 8 bottom end of foot valve is embraced in outer armful of foot valve 8 and setting outside
Cheng Kaiguan, it is foot-operated formed in switch control swollen solenoid valve 7 it is electric.The addition of free off the hook solenoid valve 3 and pedal stroke switch,
The more pipe protections of internal swollen operation, avoid the maloperation of machine hand, enhance the safety of system.
Further, which further includes the storage on the pipeline being connected between interior swollen solenoid valve 7 and check valve 6
It can device 5.Accumulator 5 is added, flow when guaranteeing free off the hook movement is sufficient.
Specifically, interior swollen solenoid valve 7 is two-position three-way valve, and interior swollen solenoid valve 7 is nitrile rubber valve.
It on the basis of above-mentioned each scheme, is opened and closed for the ease of controlling free off the hook solenoid valve 3, it is preferable that free off the hook electricity
The switch of magnet valve 3 is arranged on the control panel of driver's cabin.
As shown in Fig. 2 hydraulic schematic diagram, free off the hook solenoid valve 3 is added in this programme, and switch is located at the control plane of driver's cabin
On plate, after being turned on engine, the oil liquid of gear pump 1 is returned directly to fuel tank by free off the hook solenoid valve 3, completes in dynamic compaction machinery machine
The a series of actions such as luffing, walking, revolution when elevator being begun to use to carry out fixed point ramming, just open free off the hook solenoid valve 3
Switch, oil liquid give 5 fliud flushing of accumulator by hydraulic directional valve 4 and check valve 6.From the elevator handle 12 of complete machine leading hydraulic system
Place attracts a road binders, for controlling the commutation of hydraulic directional valve 4, no matter operates elevator handle 12 and carries out winding lifting or transfer dynamic
Make, oil liquid can open hydraulic directional valve 4 by shuttle valve 11, so that gear pump 1 returns to fuel tank for the oil liquid come.
The beneath of foot valve 8 is embraced outside the application and has added a pedal stroke switch, for controlling obtaining for interior swollen solenoid valve 7
Electricity, when needing free off the hook, push button on long-pressing handle, with time point stop it is outer embrace foot valve 8 and trigger a pedal stroke switch electric,
Swollen solenoid valve 7 in could opening, oil liquid enter swollen oil cylinder 10 in elevator, and push the spring opens interior swollen clutch, and reel is certainly
By off the hook；When hook falls on object height, push button in release handle, that is, close in swollen solenoid valve 7, interior swollen oil cylinder and clutch
Device is also closed, while foot steps on outer armful of foot valve 8, and oil liquid, which enters, embraces oil cylinder 9 outside elevator, is embraced oil cylinder outside and is closed, so that external contracting brake is stopped
Firmly hoist engine, free off the hook stop, and pedal stroke switch while power loss.
As can be seen from the above description, in hydraulic control device provided by being embodied in the application, free off the hook is added
Solenoid valve 3, so that complete machine under car state, operates other movements in addition to elevator movement, such as luffing, walking, revolution
When movement, the oil liquid of free off the hook hydraulic system can without overflow direct oil return box, avoid system heat generation, improve
The safety in utilization of dynamic compaction machinery.Hydraulic directional valve 4 is added in hydraulic control device simultaneously, and complete machine starts to pinpoint ramming unlatching freely
After off the hook solenoid valve 3, when being acted using the raising or decentralization of handle operation elevator, the oil liquid of free off the hook hydraulic system can also
With oil return box direct without overflow, also avoids system heat generation and further improve the safety in utilization of dynamic compaction machinery.
A kind of dynamic compaction machinery provided by the present application, the hydraulic control device including free off the hook hoist engine, wherein free off the hook
The hydraulic control device of hoist engine is any of the above-described kind of hydraulic control device.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of hydraulic control device of the free off the hook hoist engine of dynamic compaction machinery, including gear pump (1), overflow valve (2) and interior swollen
Solenoid valve (7), the gear pump (1) are connected to by oil circuit with the interior swollen solenoid valve (7), which is characterized in that further include along liquid
Free off the hook solenoid valve (3) and check valve (6) on the oil circuit, the free off the hook solenoid valve is arranged in the body type of flow
(3) it is connect with fuel tank, interior pipeline between the overflow valve (2) and the gear pump (1) and the free off the hook solenoid valve (3)
Connection, when elevator carries out fixed point ramming, the oil communication, when hoist engine is in non-ramming state, the free off the hook
Solenoid valve (3) is in close state, and the free off the hook solenoid valve (3) is connected to the fuel tank.
2. hydraulic control device according to claim 1, which is characterized in that the oil circuit further includes hydraulic directional valve (4),
The hydraulic directional valve (4) is two-position three-way valve, and the P mouth of the hydraulic directional valve (4) and the free off the hook solenoid valve (3) are even
Connect, the A mouth of the hydraulic directional valve (4) is connect with the check valve (6), the B mouth of the hydraulic directional valve (4) with it is described interior swollen
Solenoid valve (7) connection.
3. hydraulic control device according to claim 2, which is characterized in that further include elevator handle (12), the elevator
Handle (12) is connect by shuttle valve (11) with the hydraulic directional valve (4), and the hydraulic directional valve (4) commutation is controlled.
4. hydraulic control device according to claim 2, which is characterized in that the overflow valve (2), the interior swollen solenoid valve
(7), the free off the hook solenoid valve (3), the hydraulic directional valve (4) and the check valve (6) are integrated in a hydraulic valve block
On.
5. hydraulic control device according to claim 4, which is characterized in that further include being arranged on the outside of the hydraulic valve block
Protective shell.
6. hydraulic control device according to claim 1, which is characterized in that further include that outer armful foot valve (8) and setting exist
The outer pedal stroke switch for embracing foot valve (8) bottom end, it is described foot-operated to form interior swollen solenoid valve (7) described in switch control
Electricity.
7. hydraulic control device according to claim 1, which is characterized in that further include being connected to the interior swollen solenoid valve
(7) accumulator (5) on the pipeline between the check valve (6).
8. hydraulic control device according to claim 1, which is characterized in that the interior swollen solenoid valve (7) is two-bit triplet
Valve, and the interior swollen solenoid valve (7) is nitrile rubber valve.
9. hydraulic control device according to claim 1 to 8, which is characterized in that the free off the hook solenoid valve
(3) switch is arranged on the control panel of driver's cabin.
10. a kind of dynamic compaction machinery, the hydraulic control device including free off the hook hoist engine, which is characterized in that the free off the hook volume
The hydraulic control device for raising machine is hydraulic control device of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821756091.1U CN208918936U (en) | 2018-10-26 | 2018-10-26 | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821756091.1U CN208918936U (en) | 2018-10-26 | 2018-10-26 | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918936U true CN208918936U (en) | 2019-05-31 |
Family
ID=66710837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821756091.1U Active CN208918936U (en) | 2018-10-26 | 2018-10-26 | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208918936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026858A (en) * | 2018-10-26 | 2018-12-18 | 北京中车重工机械有限公司 | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery |
| CN110254323A (en) * | 2019-06-27 | 2019-09-20 | 袁菊花 | The lifting device of dumper |
-
2018
- 2018-10-26 CN CN201821756091.1U patent/CN208918936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026858A (en) * | 2018-10-26 | 2018-12-18 | 北京中车重工机械有限公司 | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery |
| CN110254323A (en) * | 2019-06-27 | 2019-09-20 | 袁菊花 | The lifting device of dumper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208918936U (en) | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery | |
| CN106013042B (en) | A kind of soft soil foundation reinforcing method and the pipe of reinforcing ram | |
| CN109026858A (en) | The hydraulic control device and dynamic compaction machinery of the free off the hook hoist engine of dynamic compaction machinery | |
| CN205277958U (en) | Dig hydraulic system of rig mast soon | |
| CN106284475A (en) | The hydraulic crawler excavator that a kind of double motor drives | |
| CN106223380A (en) | A kind of hydraulic hybrid excavator system | |
| CN104047280A (en) | Soft foundation fast separating and punning method | |
| CN205953386U (en) | Dig rig hoist actuating system soon | |
| CN106498963A (en) | A kind of tube well dewatering system that is drawn water using air compressor machine and water pump concentration | |
| CN203627359U (en) | Crane for foundation pile construction and hydraulic system thereof | |
| CN201567597U (en) | Piling device | |
| CN207406274U (en) | Stake machine equipment hydraulic speed-limiting system | |
| CN204418260U (en) | A kind of automatic recognition system for excavator | |
| CN207419468U (en) | A kind of mechanical piling machine in small building building site | |
| CN203176023U (en) | Oil pipe lifter hydraulic device | |
| CN202706971U (en) | Bit fisher | |
| CN104895058B (en) | The all-hydraulic two-tube compound club-footed pile machine of static pressure and its construction method | |
| CN107255104A (en) | Snow-clearing car hydraulic pressure obstacle avoidance system | |
| CN101225675A (en) | Full-hydraulic microcomputer-controlled pipe dredging vehicle | |
| CN202073132U (en) | Descending acceleration device of excavator movable arm | |
| CN107201758B (en) | Hydraulic system of excavator | |
| CN204715367U (en) | A kind of stake machine driving system | |
| CN206159154U (en) | Hydraulic pressure bolt formula operating system's spud leg hydraulic circuit that goes up and down fast | |
| CN206128153U (en) | Hydraulic hybrid excavator system | |
| CN205975564U (en) | Take remote control crawler -type to ram quick -witted hydraulic system by force |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |