CN104832584A - Anti-back-tipping damping system and dynamic compaction machine - Google Patents
Anti-back-tipping damping system and dynamic compaction machine Download PDFInfo
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- CN104832584A CN104832584A CN201410219187.4A CN201410219187A CN104832584A CN 104832584 A CN104832584 A CN 104832584A CN 201410219187 A CN201410219187 A CN 201410219187A CN 104832584 A CN104832584 A CN 104832584A
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- cavity
- communicated
- oil
- hypsokinesis
- damping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Abstract
The invention provides an anti-back-tipping damping system and a dynamic compaction machine. The anti-back-tipping damping system comprises an oil cylinder, a first cavity communication oil path, a second cavity communication oil path and a damping oil path. The oil cylinder comprises a first piston, a first cavity and a second cavity, wherein the first cavity and the second cavity can be isolated through the first piston. The first end of the first cavity communication oil path is communicated with the first cavity, and the first end of the second cavity communication oil path is communicated with the second cavity; and the second end of the first cavity communication oil path and the second end of the second cavity communication oil path are correspondingly communicated with two ends of the damping oil path in a one-to-one manner. The hydraulic damping manner is adopted by the anti-back-tipping damping system for damping, and the damping effect is ensured; the anti-back-tipping damping system can meet the different damping requirement of engineering mechanical equipment; and due to the fact that the first cavity and the second cavity of the oil cylinder are communicated through the damping oil path, oil pressure in the first cavity and oil pressure in the second cavity of the oil cylinder can be balanced, so that the damping function is achieved.
Description
Technical field
The present invention relates to engineering machinery field, more specifically, relate to a kind of anti-hypsokinesis shock mitigation system and dynamic compaction machinery.
Background technique
Engineering mechanical device (such as dynamic compaction machinery) often will arrange anti-hypsokinesis shock mitigation system, for reducing Oscillation Amplitude and the frequency of equipment, ensures working stability and the operational safety of equipment.
For dynamic compaction machinery, dynamic compaction machinery when carrying out ramming operation in unhook mode, free fall after rammer unhooking, the moment of unhook, hammer ram release load can cause strong impact to jib, thus the stability of the working life of serious harm boom system and car load, Security.
Current anti-hypsokinesis shock mitigation system mostly is mechanical spring shock mitigation system.But, owing to being subject to the restriction of spring performance, mechanical spring shock mitigation system can not provide damping resistance well, thus required damping effect cannot be reached, anti-hypsokinesis shock mitigation system is made to have the shortcoming of damping performance difference, have a strong impact on the operational safety of engineering mechanical device, working stability, there is potential safety hazard, shorten the working life of engineering mechanical device.
Summary of the invention
The present invention aims to provide a kind of anti-hypsokinesis shock mitigation system and dynamic compaction machinery, to solve the problem of anti-hypsokinesis shock mitigation system damping performance difference in prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, providing a kind of anti-hypsokinesis shock mitigation system, comprising: oil cylinder, oil cylinder comprises first piston and has by the first mutually isolated cavity of first piston and the second cavity; First cavity is communicated with oil circuit, and the first end that the first cavity is communicated with oil circuit is communicated with the first cavity; Second cavity is communicated with oil circuit, and the first end that the second cavity is communicated with oil circuit is communicated with the second cavity; Damping oil circuit, the two ends one_to_one corresponding of the second end and damping oil circuit that the second end that the first cavity is communicated with oil circuit is communicated with oil circuit with the second cavity is communicated with.
Further, anti-hypsokinesis shock mitigation system also comprises: the first oil return circuit, and the first oil return circuit and damping oil circuit are arranged in parallel; Fuel tank, the first cavity of oil cylinder is communicated with fuel tank by the first oil return circuit with the second cavity; Repairing oil circuit, repairing oil circuit is communicated with oil circuit and/or the second cavity and is communicated with oil circuit and is communicated with the first cavity.
Further, damping oil circuit has damping piece, and the first cavity connection oil circuit is communicated with oil circuit by damping piece with the second cavity and is communicated with.
Further, damping piece comprises damping block, and damping block has the damping hole of through setting.
Further, damping hole is multiple, and multiple damping hole is intervally installed; Damping piece also comprises hole plug, and hole plug is multiple, and multiple hole plug is selectively equipped with multiple damping hole, and the number of hole plug is less than the number of damping hole.
Further, the first oil return circuit comprises the first oil return branch road, and the first oil return branch road has the first relief valve, and the first end of the first oil return branch road is communicated with oil circuit the second end with the second cavity is communicated with, and the second end of the first oil return branch road is communicated with fuel tank.
Further, first oil return circuit comprises the second oil return branch road, the first end of the second oil return branch road is communicated with oil circuit the second end with the second cavity is communicated with, second end of the second oil return branch road is communicated with fuel tank, second oil return branch road has and is arranged in series: the first one-way valve, and the entrance point of the first one-way valve to be communicated with oil circuit the second end with the second cavity is communicated with; Second relief valve, the entrance point of the second relief valve is communicated with the outlet end of the first one-way valve, the outlet end of the second relief valve is communicated with fuel tank, the second end that first cavity is communicated with oil circuit is communicated with the second oil return branch road, and the first cavity is communicated with the second end of oil circuit between the first one-way valve and the second relief valve.
Further, first one-way valve is the two-way plug-in unit comprising control end, second oil return branch road also has the second one-way valve be arranged in series with two-way plug-in unit and the second relief valve, second one-way valve is between two-way plug-in unit and the second relief valve, and the entrance point of the second one-way valve is communicated with the outlet end of two-way plug-in unit, the first cavity is communicated with the second end of oil circuit between two-way plug-in unit and the second one-way valve; First oil return circuit also comprises oil circuit control, and the first end of oil circuit control is connected with the control end of two-way plug-in unit, and the second end of oil circuit control is communicated with the second oil return branch road, and the second end of oil circuit control is between the second one-way valve and the second relief valve.
Further, the unlatching oil pressure value of the first relief valve is greater than the unlatching oil pressure value of the second relief valve.
Further, oil cylinder also comprises: cylinder body; Cylinder bar, the first end of cylinder bar is provided with first piston, and cylinder bar is positioned at the first cavity, and the first cavity is rod chamber, and the second cavity is rodless cavity, and first piston and cylinder bar are arranged in cylinder body movably, and cylinder bar has hollow cavity, and the second end sealing of cylinder bar is arranged; Second piston, second piston is movably arranged in the hollow cavity of cylinder bar, and hollow cavity is separated into the 3rd cavity and the 4th cavity by the second piston, and the 3rd cavity is positioned at the first end of cylinder bar and is communicated with the second cavity, 4th cavity is positioned at the second end of cylinder bar, has pressure-regulated fluid in the 4th cavity.
Further, pressure-regulated fluid is gas, and anti-hypsokinesis shock mitigation system also comprises tonifying Qi path, and one end of tonifying Qi path is communicated with the 4th cavity of cylinder bar.
Further, tonifying Qi path has the 3rd one-way valve, and the outlet end of the 3rd one-way valve is communicated with the 4th cavity.
Further, pressure-regulated fluid is hydraulic oil, and anti-hypsokinesis shock mitigation system also comprises the second oil return circuit, and one end of the second oil return circuit is communicated with the 4th cavity of cylinder bar.
According to another aspect of the present invention, provide a kind of dynamic compaction machinery, comprise turntable, jib and anti-hypsokinesis shock mitigation system, jib and turntable hinged, anti-hypsokinesis shock mitigation system is connected with jib, and anti-hypsokinesis shock mitigation system is above-mentioned anti-hypsokinesis shock mitigation system, and anti-hypsokinesis shock mitigation system is arranged on turntable.
Oil cylinder in the present invention has by the first mutually isolated cavity of first piston and the second cavity, the first end that first cavity is communicated with oil circuit is communicated with the outlet end of the first cavity, the first end that second cavity is communicated with oil circuit is communicated with the outlet end of the second cavity, and the two ends one_to_one corresponding of the second end and damping oil circuit that the second end that the first cavity is communicated with oil circuit is communicated with oil circuit with the second cavity is communicated with.Anti-hypsokinesis shock mitigation system in the present invention adopts the mode of hydraulic shock-absorption to carry out damping, ensure that damping effect, enables this anti-hypsokinesis shock mitigation system meet the different shock attenuation needs of engineering mechanical device.Because the first cavity of oil cylinder is communicated with by damping oil circuit with the second cavity, thus make the oil pressure in oil cylinder in the first cavity and the second cavity be balanced, thus realize the function of damping, and ensure that the damping performance of anti-hypsokinesis shock mitigation system.Meanwhile, the anti-hypsokinesis shock mitigation system in the present invention has that structure is simple, the feature of low cost of manufacture.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the fundamental diagram of the anti-hypsokinesis shock mitigation system in the present invention; And
Fig. 2 diagrammatically illustrates the structural representation of the dynamic compaction machinery in the present invention.
Reference character in figure: 10, oil cylinder; 11, the first cavity; 12, the second cavity; 13, cylinder body; 14, first piston; 15, cylinder bar; 15a, hollow cavity; 15b, the 3rd cavity; 15c, the 4th cavity; 16, the second piston; 20, the first cavity is communicated with oil circuit; 30, the second cavity is communicated with oil circuit; 40, damping oil circuit; 41, damping piece; 50, the first oil return circuit; 51, the first oil return branch road; 51a, the first relief valve; 52, the second oil return branch road; 52a, the first one-way valve; 52b, the second relief valve; 52c, the second one-way valve; 53, oil circuit control; 60, fuel tank; 70, repairing oil circuit; 80, tonifying Qi path; 81, the 3rd one-way valve; 90, turntable; 91, jib; 92, sway bar; 93, suspension hook.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, provide a kind of anti-hypsokinesis shock mitigation system.As depicted in figs. 1 and 2, anti-hypsokinesis shock mitigation system comprises oil cylinder 10, first cavity and is communicated with oil circuit 20, second cavity connection oil circuit 30 and damping oil circuit 40, and oil cylinder 10 comprises first piston and has by the first mutually isolated cavity 11 and the second cavity 12 of first piston 14; The first end that first cavity is communicated with oil circuit 20 is communicated with the first cavity 11; The first end that second cavity is communicated with oil circuit 30 is communicated with the second cavity 12; The two ends one_to_one corresponding of the second end and damping oil circuit 40 that the second end that the first cavity is communicated with oil circuit 20 is communicated with oil circuit 30 with the second cavity is communicated with.Anti-hypsokinesis shock mitigation system in the present invention adopts the mode of hydraulic shock-absorption to carry out damping, ensure that damping effect, enables this anti-hypsokinesis shock mitigation system meet the different shock attenuation needs of engineering mechanical device.Because the first cavity 11 of oil cylinder 10 is communicated with by damping oil circuit 40 with the second cavity 12, thus make the oil pressure in oil cylinder 10 in first cavity 11 and the second cavity 12 be balanced, thus realize the function of damping, and ensure that the damping performance of anti-hypsokinesis shock mitigation system.Meanwhile, the anti-hypsokinesis shock mitigation system in the present invention has that structure is simple, the feature of low cost of manufacture.
Damping oil circuit 40 in the present invention has damping piece 41, and the first cavity connection oil circuit 20 is communicated with oil circuit 30 by damping piece 41 with the second cavity and is communicated with.Owing to being provided with damping piece 41, thus when comprising the first cavity 11 and being communicated with the second cavity 12, effectively can also reduce the flow velocity of hydraulic oil, the flow of hydraulic control oil, thus make shock absorbing process more mild and there is controllability.
Preferably, damping piece 41 comprises damping block, and damping block has the damping hole of through setting.Owing to having damping hole, thus the hydraulic oil in the second cavity 12 and the hydraulic oil in the first cavity 11 can realize free-flow by damping hole.
Preferably, damping block is that the material that intensity is high is made.Certainly, damping block also should have withstand voltage, corrosion resistant feature.Further, damping block is that metallic material is made.Such as, iron, copper, aluminium or rigid plastics etc.
Further, damping hole is multiple, and multiple damping hole is intervally installed; Damping piece 41 also comprises hole plug, and hole plug is multiple, and multiple hole plug is selectively equipped with multiple damping hole, and the number of hole plug is less than the number of damping hole.Number due to hole plug is less than the number of damping hole, thus ensure in the same time, to have at least a damping hole that hydraulic oil can be made to pass through, thus ensure that the first cavity 11 is communicated with the second the real-time of cavity 12, ensure that the balance of hydraulic oil therebetween, and then ensure that the functional reliability of anti-hypsokinesis shock mitigation system.Because multiple hole plug is selectively equipped with multiple damping hole, thus by controlling the number using hole plug, effectively can control the working state of damping hole, thus the flow velocity of hydraulic oil, flow are carried out to reasonable adjusting, and then make the damping performance of anti-hypsokinesis shock mitigation system have the good feature of controllability.
When specifically selecting, by calculating the damping hole diameter needed for damping block, by the use number in the hole plug damping adjusting hole on damping block, thus control oil pressure, the vibration frequency reducing jib 91 and amplitude, and then play damping effect.
Preferably, damping piece 41 can also be throttle valve, series flow control valve etc.
As shown in Figure 1, oil cylinder 10 comprises cylinder body 13, first piston 14, cylinder bar 15 and the second piston 16, the first end of cylinder bar 15 is provided with first piston 14, lever 15 is positioned at the first cavity 11, first cavity 11 is rod chamber, and the second cavity 12 is rodless cavity, and first piston 14 and cylinder bar 15 are arranged in cylinder body 13 movably, cylinder bar 15 has hollow cavity 15a, and the second end sealing of cylinder bar 15 is arranged; Second piston 16 is movably arranged in the hollow cavity 15a of cylinder bar 15, and hollow cavity 15a is separated into the 3rd cavity 15b and the 4th cavity 15c by the second piston 16,3rd cavity 15b is positioned at the first end of cylinder bar 15 and is communicated with the second cavity 12,4th cavity 15c is positioned at the second end of cylinder bar 15, has pressure-regulated fluid in the 4th cavity 15c.Owing to having pressure-regulated fluid in the 4th cavity 15c of cylinder bar 15, the 4th cavity 15c is separated by the second piston 16 with the 3rd cavity 15b, the 3rd cavity 15b is communicated with the second cavity 12, thus when hydraulic fluid pressure in the hydrodynamic pressure in the 4th cavity 15c and the second cavity 12 not etc. time, second piston 16 can slide in cylinder bar 15, thus the pressure of balance the 4th cavity 15c and the second cavity 12, and then play the effect of damping.
Preferably, pressure-regulated fluid is gas, and anti-hypsokinesis shock mitigation system also comprises tonifying Qi path 80, and one end of tonifying Qi path 80 is communicated with the 4th cavity 15c of cylinder bar 15.Preferably, gas is inert gas.Because gas has certain compression volume, thus adopt inert gas as pressure-regulated fluid, not only ensure that the pressure regulation reliability of the 4th cavity 15c and the second cavity 12, also effectively prevent the potential safety hazard of gas compression burning or blast, thus ensure that operational safety and the damping stability of anti-hypsokinesis shock mitigation system.Owing to being provided with tonifying Qi path 80, thus when carrying out tonifying Qi operation by tonifying Qi path 80 after the normal spill and leakage of inert gas, anti-hypsokinesis shock mitigation system damping effect effectively can be avoided to decline, thus ensure that the damping performance of anti-hypsokinesis shock mitigation system.
Further preferably, the outlet end that tonifying Qi path 80 has the 3rd one-way valve the 81, three one-way valve 81 is communicated with the 4th cavity 15c.Again further preferably, the 3rd one-way valve 81 is gas charging valves.Because tonifying Qi path 80 has the 3rd one-way valve 81, thus effectively avoid regulating fluid spill and leakage on a large scale, but during normal use, small spill and leakage cannot be avoided completely, thus improve the functional reliability of tonifying Qi path 80.
Further, inert gas is nitrogen.
Another preferred embodiment in, pressure-regulated fluid is hydraulic oil, and anti-hypsokinesis shock mitigation system also comprises the second oil return circuit, and one end of the second oil return circuit is communicated with the 4th cavity 15c of cylinder bar 15.Because hydraulic oil has good operating stability, regulates reliability high, the damping effect of anti-hypsokinesis shock mitigation system thus effectively can be ensured.
Anti-hypsokinesis shock mitigation system in the present invention also comprise the first oil return circuit 50, fuel tank 60 and repairing oil circuit 70, first oil return circuit 50 be arranged in parallel with damping oil circuit 40; First cavity 11 of oil cylinder 10 is communicated with fuel tank 60 by the first oil return circuit 50 with the second cavity 12; Repairing oil circuit 70 is communicated with oil circuit 20 and/or the second cavity and is communicated with oil circuit 30 and is communicated with (please refer to Fig. 1) with the first cavity.Owing to being provided with repairing oil circuit 70, thus according to service condition replenisher force feed, thus the force value of hydraulic oil in anti-hypsokinesis shock mitigation system can being ensure that, and then ensure that the damping effect of anti-hypsokinesis shock mitigation system.Owing to being provided with the first oil return circuit 50, fuel tank 60, thus improve the damping performance of anti-hypsokinesis shock mitigation system, ensure that damping reliability.
Preferably, first oil return circuit 50 comprises the first oil return branch road 51, first oil return branch road 51 has the first relief valve 51a, and the first end of the first oil return branch road 51 is communicated with oil circuit 30 the second end with the second cavity is communicated with, and the second end of the first oil return branch road 51 is communicated with fuel tank 60.Owing to being provided with the first relief valve 51a on the first oil return branch road 51, thus when the force value of hydraulic oil reaches the unlatching oil pressure value of the first relief valve 51a, first oil return branch road 51 conducting, hydraulic oil now in the second cavity 12 is communicated with oil circuit 30, first oil return branch road 51 by the second cavity and flows in fuel tank 60, thus reach the object of pressure release release load, and then anti-hypsokinesis shock mitigation system is made to play the effect of damping.
Preferably, first oil return circuit 50 comprises the second oil return branch road 52, the first end of the second oil return branch road 52 is communicated with oil circuit 30 the second end with the second cavity is communicated with, second end of the second oil return branch road 52 is communicated with fuel tank 60, second oil return branch road 52 has the first one-way valve 52a and the second relief valve 52b that are arranged in series, and the entrance point of the first one-way valve 52a is communicated with oil circuit 30 the second end with the second cavity is communicated with; The entrance point of the second relief valve 52b is communicated with the outlet end of the first one-way valve 52a, the outlet end of the second relief valve 52b is communicated with fuel tank 60, the second end that first cavity is communicated with oil circuit 20 is communicated with the second oil return branch road 52, and the first cavity is communicated with the second end of oil circuit 20 between the first one-way valve 52a and the second relief valve 52b (please refer to Fig. 1).Owing to being provided with the second relief valve 52b on the second oil return branch road 52, thus when the force value of hydraulic oil reaches the unlatching oil pressure value of the second relief valve 52b, second oil return branch road 52 conducting, hydraulic oil now in the second cavity 12 is communicated with oil circuit 30, second oil return branch road 52, first cavity connection oil circuit 20 by the second cavity and flows in the first cavity 11, thus reaches the object of pressure release release load.If during the unlatching oil pressure value of the force value of hydraulic oil all the time higher than the second relief valve 52b, section hydraulic oil also can flow in fuel tank 60 via the second oil return branch road 52.The second end being communicated with oil circuit 30 due to the entrance point of the first one-way valve 52a with the second cavity is communicated with, and the first cavity is communicated with the second end of oil circuit 20 between the first one-way valve 52a and the second relief valve 52b, thus the hydraulic oil in the first cavity 11 is not communicated with oil circuit 20 by the first cavity, first one-way valve 52a of the second oil return branch road 52 is communicated with flowing in oil circuit 30 to the second cavity, hydraulic oil in first cavity 11 has two flow paths, one is be communicated with oil circuit 20 by the first cavity, damping oil circuit 40 flows to the second cavity and is communicated with oil circuit 30, two is when unlatching oil pressure value all the time higher than the second relief valve 52b of the force value of hydraulic oil, section hydraulic oil also can be communicated with oil circuit 20 via the first cavity, second relief valve 52b of the second oil return branch road 52 flows into fuel tank 60.
Preferably, first one-way valve 52a is the two-way plug-in unit comprising control end, second oil return branch road 52 also has the second one-way valve 52c be arranged in series with two-way plug-in unit and the second relief valve 52b, second one-way valve 52c is between two-way plug-in unit and the second relief valve 52b, and the entrance point of the second one-way valve 52c is communicated with the outlet end of two-way plug-in unit, the first cavity is communicated with the second end of oil circuit 20 between two-way plug-in unit and the second one-way valve 52c; First oil return circuit 50 also comprises oil circuit control 53, the first end of oil circuit control 53 is connected with the control end of two-way plug-in unit, second end of oil circuit control 53 is communicated with the second oil return branch road 52, and the second end of oil circuit control 53 is between the second one-way valve 52c and the second relief valve 52b.Because the first one-way valve 52a is two-way plug-in unit, when the force value of hydraulic oil reaches the unlatching oil pressure value of the second relief valve 52b, second oil return branch road 52 conducting, hydraulic oil now in the second cavity 12 is communicated with the two-way plug-in unit of oil circuit 30, second oil return branch road 52 by the second cavity, the first cavity is communicated with oil circuit 20 and flows in the first cavity 11, thus reaches the object of pressure release release load.But because two-way plug-in unit is one-way valve and oil circuit control 53 is connected with the control end of two-way plug-in unit, thus hydraulic oil can only be communicated with oil circuit 30 by damping oil circuit 40, second cavity and flow in the second cavity 12.Preferably, the second one-way valve 52c is guide's one-way valve.
Preferably, the unlatching oil pressure value of the first relief valve 51a is greater than the unlatching oil pressure value of the second relief valve 52b.
As second aspect of the present invention, provide a kind of dynamic compaction machinery.As depicted in figs. 1 and 2, dynamic compaction machinery comprises turntable 90, jib 91 and anti-hypsokinesis shock mitigation system, and jib 91 is hinged with turntable 90, and anti-hypsokinesis shock mitigation system is connected with jib 91, anti-hypsokinesis shock mitigation system is above-mentioned anti-hypsokinesis shock mitigation system, and anti-hypsokinesis shock mitigation system is arranged on turntable 90.Due to the anti-hypsokinesis shock mitigation system in the present invention, to have damping performance good, thus ensure that functional reliability and the operation stability of dynamic compaction machinery, thus improve the safety in utilization of dynamic compaction machinery, extend the working life of severe dynamic compaction machinery.
As shown in Figure 2, dynamic compaction machinery also comprises sway bar 92, and the cylinder bar 15 of oil cylinder 10 is connected with jib 91 by sway bar 92.Preferably, the adjustable in length of sway bar 92.Owing to arranging the sway bar 92 of adjustable in length, thus by regulating sway bar 92, sway bar 92, angle between cylinder bar 15 and jib 91 can be changed, thus ensure that the damping effect of anti-hypsokinesis shock mitigation system, make sway bar 92 and oil cylinder 10 1 same-action realize luffing and the damping of jib 91.
Preferably, anti-hypsokinesis shock mitigation system is many covers.
The working procedure that anti-hypsokinesis shock mitigation system in the present invention is concrete is:
1, after the rammer unhooking of dynamic compaction machinery, jib 91 is subject to reaction force can to layback, now cylinder bar 15 pressurized of oil cylinder 10, first piston 14 extrudes to the second cavity 12 direction, thus the hydraulic oil pressure in the second cavity 12 is raised, when the pressure of the hydraulic oil pressure in the second cavity 12 higher than the 4th cavity 15c internal pressure-regulating fluid of cylinder bar 15, hydraulic oil in second cavity 12 can promote the second piston 16 to the 4th cavity 15c mono-lateral movement, thus the 4th cavity 15c internal pressure-regulating hydrodynamic pressure is raised, simultaneously, in second cavity 12, a part of hydraulic oil can by the damping piece 41 of damping oil circuit 40, first cavity is communicated with oil circuit 20 and flows in the first cavity 11, thus effectively reduce compression shock and prevent the first cavity 11 from inhaling sky,
2, when jib 91 continues layback due to inertia, in second cavity 12, the pressure of hydraulic oil continues to raise, when the pressure of hydraulic oil reaches unlatching oil pressure value (the set pressure value of the second relief valve 52b, can arrange according to concrete service condition) time, the path of two-way plug-in unit is opened, and now too much hydraulic oil can be communicated with oil circuit 20 by two-way plug-in unit, oil circuit control 53, first cavity and flow in the first cavity 11;
3, when jib 91 continues layback, in second cavity 12, the pressure of hydraulic oil continues to raise, when the pressure of hydraulic oil reaches unlatching oil pressure value (the set pressure value of the first relief valve 51a, can arrange according to concrete service condition) time, first relief valve 51a opens, now too much hydraulic oil is flowed in fuel tank 60 by the first oil return branch road 51, thus reaches the effect of load removal, damping;
4, after jib 91 layback reaches the limit of position, can turn forward under gravity, now cylinder bar 15 tension of oil cylinder 10, first piston 14 extrudes the hydraulic oil of the first cavity 11 to the first cavity 11 1 lateral movement, thus make hydraulic oil pressure reduction in hydraulic fluid pressure rising, the second cavity 12 in the first cavity 11, when the pressure of hydraulic oil pressure in the second cavity 12 lower than the adjustment fluid in the 4th cavity 15c, regulate fluid forces second piston 16 to the second cavity 12 1 lateral movement, thus make the second piston 16 move to the bottom of cylinder bar 15 gradually; Hydraulic oil in first cavity 11 is communicated with oil circuit 20 through the first cavity, damping piece 41, second cavity of damping oil circuit 40 is communicated with oil circuit 30 and flows in the second cavity 12, now due to the second one-way valve 52c effect, two-way plug-in unit can not be opened, whole hydraulic oil can only flow into the second cavity 12 by damping oil circuit, is controlled the speed that leans forward of jib 91 by the use number in damping adjusting hole.
Anti-hypsokinesis shock mitigation system in the present invention effectively can alleviate the vibrations of jib 91 after the rammer unhooking of dynamic compaction machinery, thus eliminate unhook rear hanger 93 and significantly swing rocking of damage that jib 91 is caused and complete machine, the vibration frequency of effective minimizing jib 91 and vibration amplitude, can stop through a vibrations to-and-fro motion, and then extend the working life of complete machine and jib 91, improve the Security of dynamic compaction machinery.
Certainly, the anti-hypsokinesis shock mitigation system in the present invention can also be used for needing in the engineering mechanical device of damping, the amelioration product of such as hoist and hoist or dynamic compaction machinery.The mounting point of anti-hypsokinesis shock mitigation system also can be arranged according to concrete service condition separately.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. an anti-hypsokinesis shock mitigation system, is characterized in that, comprising:
Oil cylinder (10), described oil cylinder (10) comprises first piston (14) and has by mutually isolated the first cavity (11) of described first piston (14) and the second cavity (12);
First cavity is communicated with oil circuit (20), and the first end that described first cavity is communicated with oil circuit (20) is communicated with described first cavity (11);
Second cavity is communicated with oil circuit (30), and the first end that described second cavity is communicated with oil circuit (30) is communicated with described second cavity (12);
Damping oil circuit (40), the second end that described first cavity is communicated with oil circuit (20) is communicated with oil circuit (30) the second end with described second cavity is communicated with the two ends one_to_one corresponding of described damping oil circuit (40).
2. anti-hypsokinesis shock mitigation system according to claim 1, is characterized in that, described anti-hypsokinesis shock mitigation system also comprises:
First oil return circuit (50), described first oil return circuit (50) and described damping oil circuit (40) are arranged in parallel;
Fuel tank (60), described first cavity (11) of described oil cylinder (10) is communicated with described fuel tank (60) by described first oil return circuit (50) with described second cavity (12);
Repairing oil circuit (70), described repairing oil circuit (70) is communicated with oil circuit (20) and/or described second cavity and is communicated with oil circuit (30) and is communicated with described first cavity.
3. anti-hypsokinesis shock mitigation system according to claim 1, it is characterized in that, described damping oil circuit (40) has damping piece (41), and described first cavity connection oil circuit (20) is communicated with oil circuit (30) by described damping piece (41) with described second cavity and is communicated with.
4. anti-hypsokinesis shock mitigation system according to claim 3, is characterized in that, described damping piece (41) comprises damping block, and described damping block has the damping hole of through setting.
5. anti-hypsokinesis shock mitigation system according to claim 4, is characterized in that, described damping hole is multiple, and multiple described damping hole is intervally installed; Described damping piece (41) also comprises hole plug, and described hole plug is multiple, and multiple described hole plug is selectively equipped with multiple described damping hole, and the number of described hole plug is less than the number of described damping hole.
6. anti-hypsokinesis shock mitigation system according to claim 2, it is characterized in that, described first oil return circuit (50) comprises the first oil return branch road (51), described first oil return branch road (51) has the first relief valve (51a), the first end of described first oil return branch road (51) is communicated with the second end that described second cavity is communicated with oil circuit (30), and the second end of described first oil return branch road (51) is communicated with described fuel tank (60).
7. anti-hypsokinesis shock mitigation system according to claim 6, it is characterized in that, described first oil return circuit (50) comprises the second oil return branch road (52), the first end of described second oil return branch road (52) is communicated with the second end that described second cavity is communicated with oil circuit (30), second end of described second oil return branch road (52) is communicated with described fuel tank (60), and described second oil return branch road (52) has and is arranged in series:
First one-way valve (52a), the second end that entrance point and described second cavity of described first one-way valve (52a) are communicated with oil circuit (30) is communicated with;
Second relief valve (52b), the entrance point of described second relief valve (52b) is communicated with the outlet end of described first one-way valve (52a), the outlet end of described second relief valve (52b) is communicated with described fuel tank (60), the second end that described first cavity is communicated with oil circuit (20) is communicated with described second oil return branch road (52), and the second end that described first cavity is communicated with oil circuit (20) is positioned between described first one-way valve (52a) and described second relief valve (52b).
8. anti-hypsokinesis shock mitigation system according to claim 7, it is characterized in that, described first one-way valve (52a) is the two-way plug-in unit comprising control end, described second oil return branch road (52) also has the second one-way valve (52c) be arranged in series with described two-way plug-in unit and described second relief valve (52b), described second one-way valve (52c) is positioned between described two-way plug-in unit and described second relief valve (52b), and the entrance point of described second one-way valve (52c) is communicated with the outlet end of described two-way plug-in unit, the second end that described first cavity is communicated with oil circuit (20) is positioned between described two-way plug-in unit and described second one-way valve (52c), described first oil return circuit (50) also comprises oil circuit control (53), the first end of described oil circuit control (53) is connected with the described control end of described two-way plug-in unit, second end of described oil circuit control (53) is communicated with described second oil return branch road (52), and the second end of described oil circuit control (53) is positioned between described second one-way valve (52c) and described second relief valve (52b).
9. anti-hypsokinesis shock mitigation system according to claim 7, is characterized in that, the unlatching oil pressure value of described first relief valve (51a) is greater than the unlatching oil pressure value of described second relief valve (52b).
10. anti-hypsokinesis shock mitigation system according to claim 1, is characterized in that, described oil cylinder (10) also comprises:
Cylinder body (13);
Cylinder bar (15), the first end of described cylinder bar (15) is provided with described first piston (14), described cylinder bar (15) is positioned at described first cavity (11), described first cavity (11) is rod chamber, described second cavity (12) is rodless cavity, described first piston (14) and described cylinder bar (15) are arranged in described cylinder body (13) movably, described cylinder bar (15) has hollow cavity (15a), and the second end sealing of described cylinder bar (15) is arranged;
Second piston (16), described second piston (16) is movably arranged in the described hollow cavity (15a) of described cylinder bar (15), and described hollow cavity (15a) is separated into the 3rd cavity (15b) and the 4th cavity (15c) by described second piston (16), described 3rd cavity (15b) is positioned at the first end of described cylinder bar (15) and is communicated with described second cavity (12), described 4th cavity (15c) is positioned at the second end of described cylinder bar (15), has pressure-regulated fluid in described 4th cavity (15c).
11. anti-hypsokinesis shock mitigation systems according to claim 10, it is characterized in that, described pressure-regulated fluid is gas, described anti-hypsokinesis shock mitigation system also comprises tonifying Qi path (80), and one end of described tonifying Qi path (80) is communicated with described 4th cavity (15c) of described cylinder bar (15).
12. anti-hypsokinesis shock mitigation systems according to claim 11, it is characterized in that, described tonifying Qi path (80) has the 3rd one-way valve (81), and the outlet end of described 3rd one-way valve (81) is communicated with described 4th cavity (15c).
13. anti-hypsokinesis shock mitigation systems according to claim 10, it is characterized in that, described pressure-regulated fluid is hydraulic oil, described anti-hypsokinesis shock mitigation system also comprises the second oil return circuit, and one end of described second oil return circuit is communicated with described 4th cavity (15c) of described cylinder bar (15).
14. 1 kinds of dynamic compaction machineries, comprise turntable (90), jib (91) and anti-hypsokinesis shock mitigation system, described jib (91) is hinged with described turntable (90), described anti-hypsokinesis shock mitigation system is connected with described jib (91), it is characterized in that, described anti-hypsokinesis shock mitigation system is the anti-hypsokinesis shock mitigation system according to any one of claim 1 to 13, and described anti-hypsokinesis shock mitigation system is arranged on described turntable (90).
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| CN201410219187.4A CN104832584B (en) | 2014-05-22 | 2014-05-22 | Anti- hypsokinesis shock mitigation system and dynamic compaction machinery |
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| CN116219994A (en) * | 2023-03-13 | 2023-06-06 | 江苏筑港建设集团有限公司 | Energy-saving dynamic compaction construction automatic device |
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| CN104832584B (en) | 2017-04-05 |
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Effective date of registration: 20200928 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co.,Ltd. Address before: 102206 Beijing, Shahe, Changping District Town, Sha Yang Road, Beiqi Futian Motor Company Limited law and Intellectual Property Department Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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