CN211623851U - Hydraulic rotation control system of dynamic compactor - Google Patents
Hydraulic rotation control system of dynamic compactor Download PDFInfo
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- CN211623851U CN211623851U CN202020268679.3U CN202020268679U CN211623851U CN 211623851 U CN211623851 U CN 211623851U CN 202020268679 U CN202020268679 U CN 202020268679U CN 211623851 U CN211623851 U CN 211623851U
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Abstract
The utility model discloses a dynamic compactor hydraulic pressure gyration control system, include: the two-way quantitative hydraulic motor, the shuttle valve, the balance valve and the buffer valve, two oil inlets of the two-way quantitative hydraulic motor are respectively connected with an oil supply path, the shuttle valve, the balance valve and the buffer valve are respectively connected between the two oil supply paths, the oil inlet and the oil outlet of the buffer valve are respectively positioned on the two oil supply paths and are positioned between the balance valve and the two-way quantitative hydraulic motor, when the rotation stops, the balance valve plays a hydraulic braking role, when the rotation stops instantly, the pressure of an oil return cavity is increased due to the inertia of the motor, when the pressure is increased to a set pressure, the buffer valve loses the balance function instantly, so that the high and low cavities are communicated, the peak pressure can be eliminated, the shaking impact of the whole machine can not be caused, in addition, compared with the traditional overload valve or overload delay valve system, the buffer valve directly adopts the rotation pressure control, the timely control requirement can be realized, therefore, the reaction speed is high.
Description
Technical Field
The utility model relates to a dynamic compactor technical field, in particular to dynamic compactor hydraulic pressure gyration control system.
Background
Along with the development of the dynamic compaction machine towards a large energy level direction, the weight of the whole machine is heavier and heavier, so that higher requirements on the safety and comfort of a hydraulic system are provided, and particularly, the gantry or the rammer is driven to rotate, so that the stability and the safety are more required.
The existing hydraulic rotary control system of the dynamic compactor mainly adopts an overload valve or an overload valve with time delay boosting and an external control controller; or a closed hydraulic control system is adopted to ensure the stability and safety of the system, but the common overload valve is difficult to absorb the system impact, and if the impact is large, the damage to the small gear of the slewing device and the slewing support large gear ring is easily caused, so that the maintenance cost is increased; the effect of the overload valve using time delay boosting is not obvious; the closed rotary hydraulic system has higher cost.
Therefore, how to provide a hydraulic rotation control system of a dynamic compaction machine with high control precision, good safety and low cost is a technical problem to be solved by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a dynamic compactor hydraulic pressure gyration control system can improve system control accuracy and security.
In order to achieve the above object, the utility model provides a following technical scheme:
a dynamic compactor hydraulic swing control system, comprising: the two oil inlets of the two-way quantitative hydraulic motor are respectively connected with an oil supply way, the two oil supply ways are respectively connected with the shuttle valve, the balance valve and the buffer valve, the shuttle valve is used for supplying oil to the buffer valve, and the oil inlets and the oil outlets of the buffer valve are respectively positioned on the two oil supply ways and between the balance valve and the two-way quantitative hydraulic motor.
Preferably, the hydraulic control system further comprises a brake and a pressure reducing valve, and the oil outlet of the shuttle valve is connected with the brake through the pressure reducing valve.
Preferably, a one-way throttle valve is further included and connected between the pressure reducing valve and the brake.
Preferably, the shuttle valve comprises a first sub shuttle valve and a second sub shuttle valve, an oil outlet of the first sub shuttle valve is connected with the buffer valve, and an oil outlet of the second sub shuttle valve is connected with the pressure reducing valve.
Preferably, the cushion valve comprises a first pilot sequence control valve and a second pilot sequence control valve, wherein the pilot oil paths of the first pilot sequence control valve and the second pilot sequence control valve are connected with each other, and the oil outlet of the shuttle valve is connected with the pilot oil paths of the first pilot sequence control valve and the second pilot sequence control valve.
Preferably, two check valves are further arranged between the two oil supply paths, and oil inlets of the two check valves are arranged oppositely.
Preferably, the balancing valve is a two-way balancing valve.
Compared with the prior art, the technical scheme has the following advantages:
the utility model provides a dynamic compactor hydraulic pressure gyration control system, when the gyration stops the operation, the balance valve plays the hydraulic braking effect, when the gyration is parkked in the twinkling of an eye, because of motor inertia, lead to returning oil chamber pressure to rise, when pressure risees to set pressure, because the buffer valve loses the balance effect in the twinkling of an eye here, make the intercommunication of height chamber, peak pressure can eliminate, can not cause the rocking impact of complete machine, owing to reduced hydraulic pressure impact force, consequently, can make the security of gyration obtain guaranteeing, the trouble has been reduced, service life has been prolonged, thereby the maintenance cost is reduced, in addition for traditional overload valve or overload delay valve system, the buffer valve directly adopts gyration pressure control, can realize the timely control requirement, therefore the reaction rate is fast, and balance valve braking is steady.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic control principle diagram of a hydraulic rotation control system of a dynamic compactor according to an embodiment of the present invention.
The reference numbers are as follows:
1 is shuttle valve, 2 is balance valve, 3 is buffer valve, 4 is relief valve, 5 is one-way throttle valve, 6 is one-way valve, 7 is two-way quantitative hydraulic motor, 8 is brake.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a control principle of a hydraulic rotation control system of a dynamic compactor according to an embodiment of the present invention.
The embodiment of the utility model provides a dynamic compactor hydraulic pressure gyration control system, include: the hydraulic control valve assembly comprises a bidirectional quantitative hydraulic motor 7, a shuttle valve 1, a balance valve 2 and a buffer valve 3, wherein the balance valve 2 is preferably a bidirectional balance valve 2, each valve is preferably integrated on a valve block to form a hydraulic control valve group, an oil port of the hydraulic control valve group is fixedly connected with an oil port of the bidirectional quantitative hydraulic motor 7 through a flange, the motor 7 is matched with a platform through a speed reducer spigot and a positioning pin to ensure the installation precision, and the two valves can be fixed through a fastening bolt after positioning, specifically, two oil inlets of the bidirectional quantitative hydraulic motor 7 are respectively connected with an oil supply way, the shuttle valve 1, the balance valve 2 and the buffer valve 3 are respectively connected between the two oil supply ways, the shuttle valve 1 is used for supplying oil to the buffer valve 3, the oil inlet and the oil outlet of the buffer valve 3 are respectively positioned on the two oil supply ways and between the balance valve 2 and the bidirectional quantitative hydraulic motor 7, and when the rotation stops operation, the A port, the balance valve 2 plays a role of hydraulic braking, when the rotation is stopped instantly, the pressure of an oil return cavity is raised due to the inertia of the motor 7, when the pressure is raised to a set pressure, the buffer valve 3 loses the balance function instantly, so that the high cavity and the low cavity are communicated with each other, the peak pressure is eliminated, the shaking impact of the whole machine is not caused, the hydraulic impact force is reduced, the safety of the rotation is ensured, the fault is reduced, the service life is prolonged, the maintenance cost is reduced, in addition, compared with the traditional overload valve or overload delay valve system, the buffer valve 3 directly adopts the rotation pressure control, the timely control requirement can be realized, the reaction speed is high, the balance valve 2 is braked stably, in addition, the peak pressure and the system flow are matched by using the overload valve or the overload delay valve, and a valve with high pressure and large flow is needed during the selection, the application passes through the cushion valve 3, only need normally the operating pressure of gyration can, the flow select only need system flow half can, consequently can reach the purpose of practicing thrift the cost.
The parking brake system further comprises a brake 8 and a pressure reducing valve 4, an oil outlet of the shuttle valve 1 is connected with the brake 8 through the pressure reducing valve 4, and the parking brake system further comprises a one-way throttle valve 5 connected between the pressure reducing valve 4 and the brake, namely the pressure reducing valve 4 and the one-way throttle valve 5 are connected in series to release and brake the brake 8 of the speed reducer, the pressure reducing valve 4 plays a role in pressure required by the brake 8, and the one-way throttle valve 5 can adjust parking brake time.
Specifically, the shuttle valve 1 is preferably a high-pressure shuttle valve 1, which comprises a first sub shuttle valve and a second sub shuttle valve, an oil outlet of the first sub shuttle valve is connected with the buffer valve 3, an oil outlet of the second sub shuttle valve is connected with the pressure reducing valve 4, and oil inlets of the first sub shuttle valve and the second sub shuttle valve are respectively connected to two oil supply paths.
Further, the cushion valve 3 specifically includes a first pilot sequence control valve and a second pilot sequence control valve, in which pilot oil passages are connected to each other, and the oil outlet of the shuttle valve 1 is connected to the pilot oil passages of the first pilot sequence control valve and the second pilot sequence control valve.
In addition, two check valves 6 are further arranged between the two oil supply ways, oil inlets of the two check valves 6 are oppositely arranged, and oil can be supplemented to the motor through the check valves 6 under the condition that the rotation control system generates vacuum degrees, so that the motor is prevented from being damaged.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a dynamic compactor hydraulic pressure gyration control system has introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
1. The utility model provides a dynamic compactor hydraulic pressure gyration control system which characterized in that includes: the two oil inlets of the two-way quantitative hydraulic motor are respectively connected with an oil supply way, the two oil supply ways are respectively connected with the shuttle valve, the balance valve and the buffer valve, the shuttle valve is used for supplying oil to the buffer valve, and the oil inlets and the oil outlets of the buffer valve are respectively positioned on the two oil supply ways and between the balance valve and the two-way quantitative hydraulic motor.
2. The dynamic compactor hydraulic swing control system according to claim 1, further comprising a brake, a pressure reducing valve, and the shuttle valve oil outlet is connected with the brake through the pressure reducing valve.
3. The dynamic compactor hydraulic swing control system according to claim 2, further comprising a one-way throttle valve connected between the pressure reducing valve and the brake.
4. The hydraulic slewing control system of a dynamic compactor according to claim 3, wherein the shuttle valve comprises a first sub shuttle valve and a second sub shuttle valve, an oil outlet of the first sub shuttle valve is connected with the cushion valve, and an oil outlet of the second sub shuttle valve is connected with the pressure reducing valve.
5. The hydraulic swing control system of a dynamic compactor according to claim 1, wherein the cushion valve comprises a first pilot sequence control valve and a second pilot sequence control valve with pilot oil passages connected with each other, and the oil outlet of the shuttle valve is connected with the pilot oil passages of the first pilot sequence control valve and the second pilot sequence control valve.
6. The hydraulic rotation control system of the dynamic compactor according to claim 1, wherein two check valves are further arranged between the two oil supply paths, and oil inlets of the two check valves are arranged oppositely.
7. The dynamic compactor hydraulic slewing control system according to any one of claims 1-6, wherein the balancing valve is a bidirectional balancing valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020268679.3U CN211623851U (en) | 2020-03-06 | 2020-03-06 | Hydraulic rotation control system of dynamic compactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020268679.3U CN211623851U (en) | 2020-03-06 | 2020-03-06 | Hydraulic rotation control system of dynamic compactor |
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| CN211623851U true CN211623851U (en) | 2020-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173788A (en) * | 2020-03-06 | 2020-05-19 | 杭叉集团股份有限公司 | Hydraulic rotation control system of dynamic compactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173788A (en) * | 2020-03-06 | 2020-05-19 | 杭叉集团股份有限公司 | Hydraulic rotation control system of dynamic compactor |
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