CN203548429U - Hydraulic filter system and rotary drilling rig - Google Patents
Hydraulic filter system and rotary drilling rig Download PDFInfo
- Publication number
- CN203548429U CN203548429U CN201320598414.XU CN201320598414U CN203548429U CN 203548429 U CN203548429 U CN 203548429U CN 201320598414 U CN201320598414 U CN 201320598414U CN 203548429 U CN203548429 U CN 203548429U
- Authority
- CN
- China
- Prior art keywords
- oil
- filter
- hydraulic
- drive motor
- circuit
- 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
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hydraulic filter system and a rotary drilling rig. The hydraulic filter system comprises a main pump, a control valve and an auxiliary filter oil circuit, wherein the control valve at least comprises an oil inlet, an oil return port, a first working oil port and a second working oil port; the oil inlet is communicated with the main pump through an oil inlet circuit; the oil return port is communicated with an oil tank through an oil return circuit, and the oil return circuit is provided with a first main filter; the first working oil port is communicated with a first oil port of a driving motor; the second working oil port is communicated with a second oil port of the driving motor; two ends of the auxiliary filter oil circuit are respectively communicated with the second oil port of the driving motor and the oil return circuit; the auxiliary filter oil circuit is provided with an auxiliary filter. When the auxiliary filter plays the filter effect, the workload of other filter devices in the hydraulic system can be alleviated, the filter effect can be guaranteed, and the service life of each filter device can be prolonged.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of hydraulic filtering system and rotary drilling rig.
Background technique
Rotary drilling rig is a kind of soil taking hole forming filling pile construction machinery, has power transmission steadily and efficiency advantages of higher, in the foundation constructions such as multiple ground such as bored concrete pile, diaphragm wall, strengthening of foundation, is used widely.The operating principle of rotary drilling rig, for relying on the driving drilling rod of power plant, is realized rotary bucket rotary cutting ground, is then promoted to outside hole and unloads soil, through periodic cycle operation, until pore-forming.
In recent years, along with the quickening of engineering construction angle, the application of rotary drilling rig is further extensive, and people extraordinarily pay close attention to the lifting of rotary drilling rig performance.Along with the continuous lifting of scientific and technological level, the element of engineering mechanical device is more and more higher from being fabricated onto the reliability of installation, but the operating rate of fault of rotary drilling rig equipment is still higher.Investigation shows, oil contamination is one of major reason causing the high rate of fault of rotary drilling rig.If removal personal factor, the rate of fault that oil cleanliness reason causes accounts for 60% of total failare reason.As can be seen here, significant for the rate of fault that reduces rotary drilling rig to the control of oil contamination in hydraulic system.
Existing rotary drilling rig hydraulic system is mainly at oil feeding line (oil circuit communicating with main pump oil drain out), or oil return circuit (oil circuit communicating with fuel tank) arranges filter and reduces oil contamination.Conventional method is that filter is set on oil return circuit.If because consider the filter that choice accuracy is higher, can affect the working life of filter; Therefore conventionally select the lower filter of filter precision, but this kind of filter do not have filtration result to the less impurity of particle diameter, the turbidity test of fluid still have much room for improvement.
Model utility content
In view of this, the utility model proposes a kind of filtering effect excellence and filtrating equipment longer hydraulic filtering system and rotary drilling rig in working life.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of hydraulic filtering system, for rotary drilling rig, comprising: main pump; Control valve, described control valve at least comprises: filler opening, return opening, the first actuator port and the second actuator port; Described filler opening communicates with described main pump by oil-feed oil circuit; Described return opening communicates with fuel tank by oil return circuit, the above-mentioned first main filter that is provided with of described oil return circuit; Described the first actuator port communicates with the first hydraulic fluid port of drive motor; Described the second actuator port communicates with the second hydraulic fluid port of drive motor; Auxiliary filtration oil circuit, the two ends of described auxiliary filtration oil circuit communicate with the second hydraulic fluid port and the described oil return circuit of described drive motor respectively; And, on described auxiliary filtration oil circuit, be provided with auxiliary filter.
Further, described control valve is master winch control valve, and described drive motor is master winch drive motor; And when the first hydraulic fluid port oil-feed of described master winch drive motor, during the second hydraulic fluid port oil extraction, described master winch drive motor master winch is transferred.
Further, on described auxiliary filtration oil circuit, be also provided with Pilot operated check valve, the free filler opening of described Pilot operated check valve communicates with described auxiliary filter, and free oil outlet communicates with the second hydraulic fluid port of described master winch drive motor.
Further, on described oil-feed oil circuit, be provided with the second main filter.
Further, the filter precision of described auxiliary filter is higher than the filter precision of described the first main filter.
Further, the filter precision of described the first main filter is higher than the filter precision of described the second main filter.
Further, the filter precision of described auxiliary filter is 4 μ m～10 μ m.
Further, the filter precision of described the first main filter is 10 μ m～15 μ m.
Further, the filter precision of described the second main filter is 15 μ m～25 μ m.
On the other hand, the utility model also provides a kind of rotary drilling rig, and it is provided with the hydraulic filtering system described in above-mentioned any one.
The utility model provides a kind of hydraulic filtering system, comprises main pump, control valve, drive motor, the first main filter, auxiliary filtration oil circuit and auxiliary filter; Above-mentioned main pump communicates with the filler opening of control valve, and two actuator ports of control valve communicate with the first hydraulic fluid port and second hydraulic fluid port of drive motor respectively, and return opening communicates with fuel tank by oil return circuit, is provided with the first main filter on oil return circuit; Auxiliary filtration oil circuit is arranged between second hydraulic fluid port and oil return circuit of drive motor, on auxiliary filtration oil circuit, is provided with auxiliary filter.With respect to prior art, the hydraulic filtering system that the utility model provides is set up auxiliary filtration oil circuit between the second hydraulic fluid port of drive motor and oil return circuit, on this auxiliary filtration oil circuit, is provided with auxiliary filter.Thus, when the second hydraulic fluid port oil return of drive motor, part hydraulic oil can be by flowing back to fuel tank by oil return circuit after auxiliary filtration oil circuit again, now auxiliary filter performance filtration, impurity in this part hydraulic oil of filtering, play the effect of adhering to filtration, and then alleviate the workload of other filtrating equipment in hydraulic system (as the first main filter), when guaranteeing filtering effect, extend the working life of each filtrating equipment.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The principle schematic of the hydraulic filtering system that Fig. 1 provides for the utility model embodiment one.
Description of reference numerals:
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the utility model can combine mutually.Below in conjunction with accompanying drawing, each preferred embodiment of the present utility model is described further:
Refer to 1, this is illustrated as the principle schematic of the hydraulic filtering system that the utility model embodiment one provides.The hydraulic filtering system that the present embodiment provides is for rotary drilling rig, and this hydraulic filtering system comprises:
Master winch control valve 2, this master winch control valve 2 at least comprises: oil inlet P, oil return inlet T, the first actuator port A and the second actuator port B; Wherein,
Oil inlet P communicates with main pump 1 by oil-feed oil circuit L1;
Oil return inlet T communicates with fuel tank by oil return circuit L2, the above-mentioned first main filter 31 that is provided with of oil return circuit L2;
The first actuator port A communicates with the first hydraulic fluid port a1 of master winch drive motor 4;
The second actuator port B communicates with the second hydraulic fluid port a2 of master winch drive motor 4;
Auxiliary filtration oil circuit L3, the two ends of this auxiliary filtration oil circuit L3 communicate with the second hydraulic fluid port a2 and the oil return circuit L2 of master winch drive motor 4 respectively; And, on this auxiliary filtration oil circuit L3, be provided with auxiliary filter 5.
In the hydraulic filtering system that the present embodiment provides, main pump 1 turns round under suitable dynamic source drives, and can export the hydraulic oil of predetermined pressure.Master winch control valve 2 is for flowing to by controlling hydraulic oil the running of controlling hydraulic actuator-master winch drive motor 4; Master winch control valve 2 can adopt structure well known to those skilled in the art, is specifically as follows 3-position 4-way solenoid directional control valve, or three six electric change valves as shown in Figure 1.No matter which kind of selector valve it adopts, it all at least comprises oil inlet P, oil return inlet T, the first actuator port A, the second actuator port B, when oil inlet P communicates with the first actuator port A, when oil return inlet T communicates with the second actuator port B, master winch drive motor 4 rotates towards first direction; When oil inlet P communicates with the second actuator port B, when oil return inlet T communicates with the first actuator port A, master winch drive motor 4 rotates towards second direction.Master winch control valve 2 in the present embodiment also comprises the first drain tap D1 and the second drain tap D2, and the first drain tap D1 communicates with the oil drain out of main pump 1, and the second drain tap D2 communicates with fuel tank.When the first drain tap D1 communicates with the second drain tap D2, the hydraulic oil that main pump 1 is discharged directly flows back to fuel tank, and master winch drive motor 4 is not worked.
The oil return inlet T of master winch control valve 2 communicates with fuel tank by oil return circuit L2.The hydraulic oil of discharging from master winch drive motor 4 can flow back to fuel tank by oil return inlet T.The object that the first main filter 31 is set on oil return circuit L2 is: all hydraulic oil that flows back to fuel tank is filtered, improve the turbidity test of fluid, so that again utilize.
In addition, this hydraulic filtering system also has additional auxiliary filtration oil circuit L3, and this auxiliary filtration oil circuit L3, between the second hydraulic fluid port a2 and oil return circuit L2 of drive motor 4, is provided with auxiliary filter 5 on this auxiliary filtration oil circuit L3.The effect of above-mentioned auxiliary filtration oil circuit L3 and auxiliary filter 5 is: the effect that plays aided filter.Particularly, when the second hydraulic fluid port a2 oil extraction of master winch drive motor 4, a hydraulic oil part of discharging from the second hydraulic fluid port a2 of master winch drive motor 4 can flow back to fuel tank by auxiliary filtration oil circuit L3, and now auxiliary filter 5 performance filtrations, by the impurity filtering in hydraulic oil.Thus, alleviate the workload of other filtrating equipment (as the first main filter 31), extend the working life of each filtrating equipment.
As shown in the above, when the second hydraulic fluid port a2 oil extraction of master winch drive motor 4, auxiliary filter 5 performance filtrations.When the master winch of considering rotary drilling rig is transferred, hydraulic system pressure is low, and flow is large, now fluid is both filtered and can reduce hydraulic oil energy loss, can filter again fully.Master winch drive motor 4 is preferably set thus in the following manner: when the first hydraulic fluid port a1 oil-feed of described master winch drive motor 4, during the second hydraulic fluid port a2 oil extraction, master winch drive motor 4 drives master winch to transfer.
Further, for the ease of controlling, on above-mentioned auxiliary filtration oil circuit L3, can also be provided with Pilot operated check valve 6, the free filler opening e1 of this Pilot operated check valve 6 communicates with auxiliary filter 5, and free oil outlet e2 communicates with the second hydraulic fluid port a2 of master winch drive motor 4.Thus, when the pressure of the hydraulic oil of discharging as the second hydraulic fluid port a2 of master winch drive motor 4 reaches predetermined value, Pilot operated check valve 6 two-way admittances, 5 pairs of fluid of auxiliary filter filter.
Certainly, in order further to improve the filter precision to fluid, reduce the rate of fault of rotary drilling rig, can also on oil-feed oil circuit L1, be provided with the second main filter 32.
Filter precision about above-mentioned the first main filter 32 of main filter 31, second and auxiliary filter 5, due to auxiliary filter 5 is intermittent work, while only having the second hydraulic fluid port a2 oil extraction when master winch drive motor 4, just work, therefore its filter precision can be set high, therefore the filter precision that auxiliary filter 5 is preferably set is higher than the first main filter 31.The filter precision that auxiliary filter 5 can be set is 4 μ m～10 μ m.The filter precision of the first main filter 31 is 10 μ m～15 μ m.Because the second main filter 32 is arranged at the oil drain out place of main pump 1, if it is too high that the filter precision of the second main filter 32 is set, larger to hydraulic oil energy loss, filter is also fragile.Therefore the filter precision of the first main filter 31 is preferably set higher than the filter precision of the second main filter 32.Concrete, the filter precision that the second main filter 32 can be set is 15 μ m～25 μ m.When above-mentioned filter precision refers to the logical strainer screen of the solution that comprises impurity, allowing the size of the largest particles that passes through, is the aperture of the filter core of filter.
The working principle of the hydraulic filtering system shown in Fig. 1 is as follows:
The hydraulic oil of discharging from main pump 1 is by the laggard rolling control valve 2 of becoming owner of of the second main filter 32; Control master winch control valve 2 in left position, oil inlet P communicates with the first actuator port A, and oil return inlet T communicates with the second actuator port B, and the first drain tap D1 and the second drain tap D2 all end; The second hydraulic fluid port a2 oil-feed of master winch drive motor 4, the first hydraulic fluid port a1 is fuel-displaced, and master winch drive motor 4 rotates towards first direction, and now master winch drive motor 4 drives on master winch and carries; Filtering by the first main filter 31, the hydraulic oil of discharging from the second hydraulic fluid port a2 of master winch drive motor 4 flows back to fuel tank.
The hydraulic oil of discharging from main pump 1 is by the laggard rolling control valve 2 of becoming owner of of the second main filter 32; Control master winch control valve 2 in right position, oil inlet P communicates with the second actuator port B, and oil return inlet T communicates with the first actuator port A, and the first drain tap D1 and the second drain tap D2 all end; The first hydraulic fluid port a1 oil-feed of master winch drive motor 4, the second hydraulic fluid port a2 is fuel-displaced, and master winch drive motor 4 rotates towards second direction, and now master winch drive motor 4 drives master winch to transfer; A hydraulic oil part of discharging from the second hydraulic fluid port a2 of master winch drive motor 4 flows back to fuel tank directly filtering by the first main filter 31; Another part flows into auxiliary filtration oil circuit L3, after auxiliary filter 5 filters, flows into oil return circuit L2, then flows back to fuel tank after the first main filter 31 filters.
The hydraulic oil of discharging from main pump 1 is by the laggard rolling control valve 2 of becoming owner of of the second main filter 32; Control master winch control valve 2 in meta, oil inlet P, oil return inlet T, the first actuator port A, the second actuator port B all end, the first drain tap D1 communicates with the second drain tap D2, and the hydraulic oil of discharging from master winch control valve 2 directly flows back to fuel tank filtering by the first main filter 31.Master winch drive motor 4 quits work.
In sum, with respect to prior art, the hydraulic filtering system that the utility model embodiment provides is set up auxiliary filtration oil circuit between the second hydraulic fluid port of drive motor and oil return circuit, on this auxiliary filtration oil circuit, is provided with auxiliary filter.Thus, when the second hydraulic fluid port oil return of drive motor, part hydraulic oil can flow back to fuel tank by auxiliary filtration oil circuit, now auxiliary filter performance filtration, impurity in this part hydraulic oil of filtering, play the effect of adhering to filtration, and then alleviate the workload of other filtrating equipment in hydraulic system (as the first main filter), when guaranteeing filtering effect, extend the working life of each filtrating equipment.
It should be noted that: above-mentioned master winch control valve 2 can be substituted by other control valve, as unit head control valve, rotary control valve etc., corresponding, above-mentioned drive motor is replaced by corresponding executive component, can realize equally the function of aided filter.
For the ease of understanding, Fig. 1 only shows part control valve and executive component.In order to realize other function, above-mentioned hydraulic filtering system can also comprise other control valve and other corresponding executive components.
The utility model embodiment also provides a kind of rotary drilling rig, this rotary drilling rig is provided with above-mentioned any hydraulic filtering system, because above-mentioned any hydraulic filtering system has above-mentioned technique effect, therefore, the rotary drilling rig that is provided with hydraulic filtering system also should possess corresponding technique effect, its specific implementation process is similar to the above embodiments, does not hereby repeat.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a hydraulic filtering system, for rotary drilling rig, is characterized in that, comprising:
Main pump (1);
Control valve, described control valve at least comprises: filler opening, return opening, the first actuator port and the second actuator port;
Described filler opening communicates with described main pump (1) by oil-feed oil circuit (L1);
Described return opening communicates with fuel tank by oil return circuit (L2), the above-mentioned first main filter (31) that is provided with of described oil return circuit (L2);
Described the first actuator port communicates with the first hydraulic fluid port of drive motor;
Described the second actuator port communicates with the second hydraulic fluid port of drive motor;
Auxiliary filtration oil circuit (L3), the two ends of described auxiliary filtration oil circuit (L3) communicate with the second hydraulic fluid port and the described oil return circuit (L2) of described drive motor respectively; And, on described auxiliary filtration oil circuit (L3), be provided with auxiliary filter (5).
2. hydraulic filtering system according to claim 1, is characterized in that, described control valve is master winch control valve (2), and described drive motor is master winch drive motor (4); And when the first hydraulic fluid port (a1) oil-feed of described master winch drive motor (4), during the second hydraulic fluid port (a2) oil extraction, described master winch drive motor (4) drives master winch to transfer.
3. hydraulic filtering system according to claim 2, it is characterized in that, on described auxiliary filtration oil circuit (L3), be also provided with Pilot operated check valve (6), the free filler opening (e1) of described Pilot operated check valve (6) communicates with described auxiliary filter (5), and free oil outlet (e2) communicates with second hydraulic fluid port (a2) of described master winch drive motor (4).
4. hydraulic filtering system according to claim 3, is characterized in that, is provided with the second main filter (32) on described oil-feed oil circuit (L1).
5. hydraulic filtering system according to claim 4, is characterized in that, the filter precision of described auxiliary filter (5) is higher than the filter precision of described the first main filter (31).
6. hydraulic filtering system according to claim 5, is characterized in that, the filter precision of described the first main filter (31) is higher than the filter precision of described the second main filter (32).
7. hydraulic filtering system according to claim 6, is characterized in that, the filter precision of described auxiliary filter (5) is 4 μ m～10 μ m.
8. hydraulic filtering system according to claim 6, is characterized in that, the filter precision of described the first main filter (31) is 10 μ m～15 μ m.
9. hydraulic filtering system according to claim 6, is characterized in that, the filter precision of described the second main filter (32) is 15 μ m～25 μ m.
10. a rotary drilling rig, is characterized in that, is provided with the hydraulic filtering system described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320598414.XU CN203548429U (en) | 2013-09-25 | 2013-09-25 | Hydraulic filter system and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320598414.XU CN203548429U (en) | 2013-09-25 | 2013-09-25 | Hydraulic filter system and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548429U true CN203548429U (en) | 2014-04-16 |
Family
ID=50466553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320598414.XU Expired - Fee Related CN203548429U (en) | 2013-09-25 | 2013-09-25 | Hydraulic filter system and rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298996A (en) * | 2015-12-02 | 2016-02-03 | 湖南三一路面机械有限公司 | Pumping hydraulic system and concrete pump truck |
-
2013
- 2013-09-25 CN CN201320598414.XU patent/CN203548429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298996A (en) * | 2015-12-02 | 2016-02-03 | 湖南三一路面机械有限公司 | Pumping hydraulic system and concrete pump truck |
| CN105298996B (en) * | 2015-12-02 | 2017-09-22 | 湖南三一路面机械有限公司 | Hydraulic system of pump and concrete mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202326531U (en) | Elevating platform fire truck and hydraulic oil filter device and hydraulic control system thereof | |
| CN103527758A (en) | Rotary drilling rig and operation device | |
| CN203548429U (en) | Hydraulic filter system and rotary drilling rig | |
| CN202579469U (en) | Filtering device and engineering machinery provided with filtering device | |
| CN202099824U (en) | Return oil circuit of reamer hydraulic motor of cutter suction dredger | |
| CN203525425U (en) | Automatic lamination filtering system | |
| CN201050076Y (en) | Lead operation valve oil supplying system | |
| CN103469836B (en) | A kind of perching knife slewing equipment and land leveller | |
| CN202789786U (en) | Hydraulic system and concrete pump truck and engineering machine with same | |
| CN103644159A (en) | Remote-control box control valve as well as rotary table hydraulic control system and crane | |
| CN204326027U (en) | A kind of hydraulic-driven winch hoist | |
| CN103511379B (en) | A kind of crane, hydraulic system and switching valve | |
| CN202789859U (en) | Hydraulic energy-saving temperature controlling system for loader working equipment | |
| CN103206423B (en) | A kind of hydraulic system and engineering machinery | |
| CN203702700U (en) | Rotary drilling rig and main hoist hydraulic system thereof | |
| CN103047228B (en) | Backwash filter device and working face hydraulic system | |
| DE102014226035A1 (en) | Oil pump device | |
| CN205190386U (en) | Improve hydraulic control system of loader energy -conservation nature | |
| CN201254739Y (en) | Oil tank for crib ballast remover | |
| CN203717508U (en) | Remote control box control valve, rotary table hydraulic control system and hoist | |
| CN103727078A (en) | Crane and hydraulic system thereof | |
| CN202348849U (en) | High-pressure filtering device for back washing of mining hydraulic support | |
| CN202343010U (en) | External circulating filtration system for cleaning machine of uncoiling blanking line | |
| CN204186662U (en) | Intelligent buffering overflow mechanism | |
| CN202833359U (en) | Open-type hydraulic system and engineering machinery |
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: 20140416 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |