CN103469785B - Anti-backward inclination control device of dynamic compactor - Google Patents
Anti-backward inclination control device of dynamic compactor Download PDFInfo
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- CN103469785B CN103469785B CN201310444466.6A CN201310444466A CN103469785B CN 103469785 B CN103469785 B CN 103469785B CN 201310444466 A CN201310444466 A CN 201310444466A CN 103469785 B CN103469785 B CN 103469785B
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Abstract
The present invention relates to a kind of Anti-backward inclination control device of dynamic compactor, comprise: strut, guide rod and stage clip, one end of described guide rod is plugged in the internal cavities of described strut, described stage clip is arranged between the other end of described guide rod and one end of described strut, also comprise: anti-hypsokinesis oil cylinder, oil pump and control valve group, the two ends of described anti-hypsokinesis oil cylinder are connected with the turntable of dynamic compaction machinery and the other end of described strut respectively, under the effect of described oil pump and control valve group, described anti-hypsokinesis oil cylinder can according to the stressing conditions telescopic piston rod of described stage clip, described strut is driven to be subjected to displacement along axis, to change the insertion depth of one end in the internal cavities of described strut of described guide rod, and then the stressed of described stage clip is adjusted.The present invention can make operating personnel adjust anti-squat system in time according to the stressing conditions of stage clip, avoid jib structure because of the pressure of stage clip excessive and cause impaired, or stage clip is uncompressed and cannot reach the problem of anti-hypsokinesis object.
Description
Technical field
The present invention relates to engineering machinery field, particularly relate to a kind of Anti-backward inclination control device of dynamic compactor.
Background technology
The major function of dynamic compaction machinery is the foundation dynamic consolidation function realizing weak soil or half weak soil.Dynamic compaction machinery makes it freely fall after needing that when operation hammer ram is hung larger height, to ground with strong impact force and vibration, soil structures is destroyed, hole compresses, soil body local liquefaction, discharge pore water and gas by crack, foundation soil is consolidation under new situation, thus raising supporting capacity, and reduce its compressibilty.Meanwhile, tamping energy also can improve the uniformity coefficient of soil layer, reduces the relative settlement that may occur in the future.
After jib rises and be raised to operating angle, there is the risk of hypsokinesis, therefore current needs in dynamic compaction machinery adopts anti-squat system to reduce jib hypsokinesis risk.Existing anti-squat system generally adopts the form of structure be made up of stage clip, guide rod and strut, as shown in Figure 1, guide rod a1 is connected with jib coxopodite arm by bearing pin, and strut a2 is connected with the man-like shelf on turntable by bearing pin, is provided with stage clip a3 between guide rod a1 and strut a2.When dynamic compaction machinery operation, jib performs the action that hoists, and angle becomes large, and jib drives guide rod a1 to shrink along strut a2, and cause stage clip a3 that a certain amount of contraction occurs, when jib angle is enough large, stage clip a3 can produce certain masterpiece for jib.
Fall jib can be caused instantaneously to produce certain rebound amount at the hammer ram of dynamic compaction machinery, and jib bounce-back can cause the guide rod of the anti-squat system of this form of structure to compress rapidly instantaneously, stage clip shrinks simultaneously, can give the passive resistance that jib one is stronger, thus make jib structure more easily impaired.On the other hand, if jib arrives operating angle, but stage clip not yet compresses, then cannot reach again the object of anti-hypsokinesis, therefore this all needs operating personnel to adjust anti-squat system in time according to the stressing conditions of stage clip, but this existing anti-squat system is pure form of structure, operating personnel cannot observe stage clip with or without stressed and stressed size, are also just difficult to carry out adjusting and controlling.
Summary of the invention
The object of the invention is to propose a kind of Anti-backward inclination control device of dynamic compactor, the anti-hypsokinesis that can realize dynamic compaction machinery controls.
For achieving the above object, the invention provides a kind of Anti-backward inclination control device of dynamic compactor, comprise: strut, guide rod and stage clip, one end of described guide rod is plugged in the internal cavities of described strut, described stage clip is arranged between the other end of described guide rod and one end of described strut, wherein, also comprise: anti-hypsokinesis oil cylinder, oil pump and control valve group, the two ends of described anti-hypsokinesis oil cylinder are connected with the turntable of dynamic compaction machinery and the other end of described strut respectively, under the effect of described oil pump and control valve group, described anti-hypsokinesis oil cylinder can according to the stressing conditions telescopic piston rod of described stage clip, described strut is driven to be subjected to displacement along axis, to change the insertion depth of one end in the internal cavities of described strut of described guide rod, and then the stressed of described stage clip is adjusted.
Further, the two ends of described anti-hypsokinesis oil cylinder are respectively equipped with single connection hole and dual link hole, are connected with the turntable of described dynamic compaction machinery and the other end of described strut respectively by bearing pin.
Further, also comprise anti-hypsokinesis detection architecture, described anti-hypsokinesis detection architecture comprises sense switch, Bracket for Inspection and controller, described controller is connected with described control valve group, the surface of described strut offers through hole, described Bracket for Inspection is arranged on the position of external surface corresponding to described through hole of described strut, described sense switch is arranged on described Bracket for Inspection, one end of described guide rod is detected in the position of the internal cavities of described strut, and detection signal is sent to described controller, control signal is sent to described control valve group by described controller.
Further, described anti-hypsokinesis detection architecture is also included in the pressure sensor that described anti-hypsokinesis oil cylinder is arranged, described pressure sensor is electrically connected with described controller, and detects the large cavity pressure of described anti-hypsokinesis oil cylinder, and large cavity pressure signal is sent to described controller.
Further, described anti-hypsokinesis detection architecture is also included in the angular transducer that the jib of described dynamic compaction machinery is arranged, described angular transducer is electrically connected with described controller, and detects the angle of the jib of described dynamic compaction machinery, and jib angle signal is sent to described controller.
Further, also comprise emergency flight control switch, be connected with described control valve group, realize the emergency flight control to described anti-hypsokinesis oil cylinder.
Further, also comprise alarm sounds device, be electrically connected with described sense switch, when described sense switch detects one end of described guide rod, detection signal is sent to respectively described alarm sounds device and described controller.
Further, described controller is digital signal processor, special IC, field programmable gate array, discrete gate, transistor logic or discrete hardware components.
Based on technique scheme, the present invention is provided with adjustable anti-hypsokinesis oil cylinder between strut and turntable, utilize oil pump and control valve group, anti-hypsokinesis oil cylinder can according to the stressing conditions telescopic piston rod of stage clip, strut is driven to be subjected to displacement along axis, this can change the insertion depth of one end in the internal cavities of strut of guide rod, thus adjusts the stressed of stage clip.Therefore the present invention can make operating personnel adjust anti-squat system in time according to the stressing conditions of stage clip, avoid jib structure because of the pressure of stage clip excessive and cause impaired, or stage clip is uncompressed and cannot reach the problem of anti-hypsokinesis object.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, 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 is the structural representation of existing anti-hypsokinesis structure.
Fig. 2 is the schematic diagram of part-structure in an embodiment of Anti-backward inclination control device of dynamic compactor of the present invention.
Fig. 3 is the schematic diagram of another part structure of Fig. 2 embodiment.
Fig. 4 is the cross sectional representation of Fig. 3.
Fig. 5 is the control principle schematic diagram of Anti-backward inclination control device of dynamic compactor embodiment of the present invention.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 2, be the schematic diagram of part-structure in an embodiment of Anti-backward inclination control device of dynamic compactor of the present invention.In the present embodiment, Anti-backward inclination control device of dynamic compactor comprises strut 2, guide rod 1 and stage clip 3, and one end of guide rod 1 is plugged in the internal cavities of strut 2, and stage clip 3 is arranged between the other end of guide rod 1 and one end of strut 2.Compared to existing anti-squat system, the present embodiment also comprises anti-hypsokinesis oil cylinder 4 (shown in Fig. 3,4) and oil pump and control valve group (Fig. 3,4 not shown).The two ends of anti-hypsokinesis oil cylinder 4 are connected with the turntable (not shown) of dynamic compaction machinery and the other end of strut 2 respectively.
Under the effect of oil pump and control valve group, anti-hypsokinesis oil cylinder 4 can according to the stressing conditions telescopic piston rod of stage clip 3, drive strut 2 to be subjected to displacement along axis, to change the insertion depth of one end in the internal cavities of strut 2 of guide rod 1, and then the stressed of stage clip 3 is adjusted.
In the present embodiment, strut 2 is not directly as existing anti-squat system to be connected with turntable, but be indirectly connected with turntable by anti-hypsokinesis oil cylinder 4, and anti-hypsokinesis oil cylinder 4 and oil pump and control valve group just can provide certain control leeway for strut 2, for operating personnel, the large chamber oil-feed of anti-hypsokinesis oil cylinder 4 or oil extraction can be made to realize stretching out of piston rod or retract by operation oil pump and control valve group, and the piston rod of anti-hypsokinesis oil cylinder 4 is owing to forming annexation with strut 2, therefore piston rod 4 is on the basis promoted by hydraulic oil, also can make its strut 2 connected that certain displacement also occurs.
And stage clip 3 stressed is actually and is determined by the relative position of strut 2 and guide rod 1, in other words, the degree of depth that guide rod 1 inserts in strut 2 inside directly has influence on the stressed of stage clip 3, so under the state of guide rod 1 geo-stationary, by changing the displacement of strut 2 relative to guide rod 1, the stressed of stage clip 3 then can be made to change, this control procedure is controlled concerning operating personnel, only need know that the current stressing conditions of stage clip 3 can select suitable control operation, thus avoid jib structure because of the pressure of stage clip excessive and cause impaired, or stage clip is uncompressed and cannot reach the problem of anti-hypsokinesis object.
Can also see from Fig. 3 and Fig. 4, the two ends of anti-hypsokinesis oil cylinder 4 are respectively equipped with junction plate 41 and 42, wherein junction plate 41 is provided with two connecting holes 43 (i.e. dual link hole), and junction plate 42 is provided with a connecting hole 43 (i.e. single connection hole).Dual link hole on junction plate 41 can be connected by one end 21 of the strut 2 shown in bearing pin with Fig. 2, this needs two bearing pins to realize connecting, this connection can realize being fixedly connected with between strut 2 and the piston rod of anti-hypsokinesis oil cylinder 4, guarantee that, when piston rod stretches, strut 2 is subjected to displacement in the axial direction.And the single connection hole of junction plate 42 is connected with turntable, can articulated structure be formed, allow whole Anti-backward inclination control device of dynamic compactor in use to allow to swing certain angle relative to turntable, with the problem avoiding excessive moment of flexure to cause distortion or fracture.
The control of Anti-backward inclination control device of dynamic compactor of the present invention needs the stressing conditions with reference to stage clip, therefore by introducing the outside stressed device can measuring stage clip, also directly can add anti-hypsokinesis detection architecture in Anti-backward inclination control device of dynamic compactor.And anti-hypsokinesis detection architecture specifically comprises sense switch 6, Bracket for Inspection 5 (see Fig. 2) and controller (not shown in Fig. 2).Wherein, controller is connected with control valve group, and the surface of strut 2 offers through hole, this Bracket for Inspection 5 is arranged on the position of external surface corresponding to through hole of strut 2, sense switch 6 is arranged on Bracket for Inspection 5, detects, and detection signal can be sent to controller to one end of guide rod 1 in the position of the internal cavities of strut 2, to send control signal to control valve group by controller, thus realize the control of anti-hypsokinesis oil cylinder.
Sense switch can adopt capacitive proximity switch, when guide rod is near sense switch, will produce detection signal, represents that stage clip is in stress.Now, specifically pressure can be calculated by the pressure sensor 44 be arranged on further on anti-hypsokinesis oil cylinder 4 in anti-hypsokinesis detection architecture, pressure sensor 44 is electrically connected with controller, and detects the large cavity pressure of anti-hypsokinesis oil cylinder 4, and large cavity pressure signal is sent to controller.Wherein, large cavity pressure measured by pressure sensor 44, controller can by being multiplied the sectional area of the numerical value of large cavity pressure with the piston rod of anti-hypsokinesis oil cylinder 44, calculate the active force be applied on jib, can be calculated the deflection of stage clip by the coefficient of elasticity of stage clip, and this deflection can offset the rebound amount of jib simultaneously.As required, the pressure sensor 45 detecting little cavity pressure can also be increased.
As shown in Figure 5, be the control principle schematic diagram of Anti-backward inclination control device of dynamic compactor embodiment of the present invention.In the present embodiment, controller 8 is connected with sense switch 6, pressure sensor 11, oil pump, control valve group 7 etc. respectively, in order to demonstrate detection case, can also connect display 9 on controller 8.In addition, can further include the angular transducer 10 arranged on the jib of dynamic compaction machinery, this angular transducer 10 is electrically connected with controller 8, and detects the angle of the jib of dynamic compaction machinery, and jib angle signal is sent to controller 8.
In another embodiment, emergency flight control switch 12 can also be comprised, be connected with control valve group 7, realize the emergency flight control to anti-hypsokinesis oil cylinder 4.Here emergency flight control mainly prevents this control system malfunctioning suddenly and control ability of losing anti-hypsokinesis oil cylinder when ramming operation, and directly makes control action in time to control valve group 7 operation.
In addition, in Anti-backward inclination control device of dynamic compactor, alarm sounds device can also be increased, is electrically connected with sense switch, when sense switch detects one end of guide rod, detection signal can be sent to alarm sounds device and controller respectively.
In anti-hypsokinesis detection architecture described above, controller can adopt digital signal processor, special IC, field programmable gate array or other PLDs, discrete gate or transistor logic, discrete hardware components or it is appropriately combined arbitrarily.
The process of hoisting below by dynamic compactor arm frame comes how an illustratively Anti-backward inclination control device of dynamic compactor embodiment of the present invention specifically to play a role.
When dynamic compaction machinery operation, luffing range of cantilever support hoists, and the angular transducer that jib is arranged is monitored jib in real time and to be hoisted angle, is transferred to display by controller, and operating personnel to be hoisted angle by display observation jib.In this process, anti-hypsokinesis oil cylinder is in initial retracted mode.When jib rise be raised to dynamic compaction machinery working condition angle (generally at 76 ° ~ 80 °) time, control instruction can be sent by controller, control jib to continue to hoist, export the piston rod that another road signal controls anti-hypsokinesis oil cylinder to stretch out simultaneously, drive strut is subjected to displacement, after strut can detect the position of guide rod relative to guide rod arrival sense switch, then detection signal sends to alarm sounds device to remind operating personnel by sense switch, makes it know stage clip and is in stress at present.And when ramming operation, need specifically to control according to the size of stage clip and the size of jib rebound amount, and the pressure size of stage clip detects large cavity pressure in real time to carry out by the pressure sensor of anti-hypsokinesis oil cylinder and judges and calculate, if the stage clip pressure calculated is excessive, then can reduce stage clip pressure by the piston rod adjusting anti-hypsokinesis oil cylinder retraction certain length, otherwise the piston rod that then can stretch out certain length again by adjusting anti-hypsokinesis oil cylinder increases stage clip pressure.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (8)
1. an Anti-backward inclination control device of dynamic compactor, comprise: strut, guide rod and stage clip, one end of described guide rod is plugged in the internal cavities of described strut, described stage clip is arranged between the other end of described guide rod and one end of described strut, it is characterized in that, also comprise: anti-hypsokinesis oil cylinder, oil pump and control valve group, the two ends of described anti-hypsokinesis oil cylinder are connected with the turntable of dynamic compaction machinery and the other end of described strut respectively, under the effect of described oil pump and control valve group, described anti-hypsokinesis oil cylinder can according to the stressing conditions telescopic piston rod of described stage clip, described strut is driven to be subjected to displacement along axis, to change the insertion depth of one end in the internal cavities of described strut of described guide rod, and then the stressed of described stage clip is adjusted.
2. Anti-backward inclination control device of dynamic compactor according to claim 1, is characterized in that, the two ends of described anti-hypsokinesis oil cylinder are respectively equipped with single connection hole and dual link hole, are connected with the turntable of described dynamic compaction machinery and the other end of described strut respectively by bearing pin.
3. Anti-backward inclination control device of dynamic compactor according to claim 1, it is characterized in that, also comprise anti-hypsokinesis detection architecture, described anti-hypsokinesis detection architecture comprises sense switch, Bracket for Inspection and controller, described controller is connected with described control valve group, the surface of described strut offers through hole, described Bracket for Inspection is arranged on the position of external surface corresponding to described through hole of described strut, described sense switch is arranged on described Bracket for Inspection, one end of described guide rod is detected in the position of the internal cavities of described strut, and detection signal is sent to described controller, control signal is sent to described control valve group by described controller.
4. Anti-backward inclination control device of dynamic compactor according to claim 3, it is characterized in that, described anti-hypsokinesis detection architecture is also included in the pressure sensor that described anti-hypsokinesis oil cylinder is arranged, described pressure sensor is electrically connected with described controller, and the large cavity pressure of described anti-hypsokinesis oil cylinder is detected, and large cavity pressure signal is sent to described controller.
5. Anti-backward inclination control device of dynamic compactor according to claim 4, it is characterized in that, described anti-hypsokinesis detection architecture is also included in the angular transducer that the jib of described dynamic compaction machinery is arranged, described angular transducer is electrically connected with described controller, and the angle of the jib of described dynamic compaction machinery is detected, and jib angle signal is sent to described controller.
6. Anti-backward inclination control device of dynamic compactor according to claim 1 or 5, is characterized in that, also comprise emergency flight control switch, be connected with described control valve group, realize the emergency flight control to described anti-hypsokinesis oil cylinder.
7. Anti-backward inclination control device of dynamic compactor according to claim 3, it is characterized in that, also comprise alarm sounds device, be electrically connected with described sense switch, when described sense switch detects one end of described guide rod, detection signal is sent to respectively described alarm sounds device and described controller.
8. the Anti-backward inclination control device of dynamic compactor according to claim 3,4,5 or 7, it is characterized in that, described controller is digital signal processor, special IC, field programmable gate array, discrete gate, transistor logic or discrete hardware components.
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| CN201310444466.6A CN103469785B (en) | 2013-09-26 | 2013-09-26 | Anti-backward inclination control device of dynamic compactor |
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| CN201310444466.6A CN103469785B (en) | 2013-09-26 | 2013-09-26 | Anti-backward inclination control device of dynamic compactor |
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| CN103469785B true CN103469785B (en) | 2015-12-16 |
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| CN203603136U (en) * | 2013-09-26 | 2014-05-21 | 徐工集团工程机械股份有限公司 | Backward inclination resistant control device of dynamic compaction machine |
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2013
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