CN103388328B - Arm support for dynamic compaction machine and dynamic compaction machine with same - Google Patents
Arm support for dynamic compaction machine and dynamic compaction machine with same Download PDFInfo
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- CN103388328B CN103388328B CN201210141422.1A CN201210141422A CN103388328B CN 103388328 B CN103388328 B CN 103388328B CN 201210141422 A CN201210141422 A CN 201210141422A CN 103388328 B CN103388328 B CN 103388328B
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Abstract
The invention discloses an arm support for a dynamic compaction machine. The arm support comprises a main arm, a generally T-shaped cross arm and at least one balancing device, wherein the lower end of the main arm is arranged on a vehicle body of the dynamic compaction machine in a pivotable way; the cross arm is arranged at the upper end of the main arm in the pivotable way; the front and rear ends of the cross arm are respectively provided with a first pulley and a second pulley which are respectively used for guiding the lifting rope of the dynamic compaction machine, the front end of the lifting rope is used for being connected with a pounder, and the gravity center of the cross arm is positioned in front of the pivoting center of the pivoting movement performed around the main arm by the cross arm in the fore-and-aft direction; and the at least one balancing device is arranged between the cross arm and the main arm. According to the arm support disclosed by the invention, by virtue of the pivot joint of the cross arm with an eccentric structure and the main arm, the swinging energy of the cross arm can be intensively released in a small range during punning, the vibration of the main arm is reduced, meanwhile a detacher and a drawhook can not contact and rub with the main arm after unhooking, and the service life of the main arm is improved. The invention further provides the dynamic compaction machine.
Description
Technical field
The present invention relates to engineering machinery field, especially relate to a kind of jib for dynamic compaction machinery and there is its dynamic compaction machinery.
Background technology
In traditional dynamic compaction machinery, jib mainly comprises transverse arm and principal arm, and transverse arm generally has two kinds with the connected mode of principal arm: a kind of is that transverse arm and principal arm are fixed together by mode by welding; Another kind uses bearing pin both to be linked together.Facts have proved, adopt the jib of above-mentioned two kinds of connected modes after a long time use, the degree of fatigue of transverse arm is comparatively large, and the stability of complete machine also decreases, simultaneously, suspension hook and detacher very easily touch when dynamic compaction machinery works or are wrapped on principal arm, add the degree of wear of principal arm, even bend time serious principal arm, affects the application life of principal arm, improve maintenance cost, poor practicability.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
For this reason, one object of the present invention is to propose a kind of jib for dynamic compaction machinery, and described jib can improve the ramming efficiency of dynamic compaction machinery, improves application life and the stability of the principal arm of described jib simultaneously.
Another object of the present invention is to propose a kind of dynamic compaction machinery with above-mentioned jib.
The jib for dynamic compaction machinery of embodiment, comprising: principal arm according to a first aspect of the present invention, and the lower end of described principal arm is located on the car body of described dynamic compaction machinery pivotly; Substantially become the transverse arm of T-shaped, described transverse arm is located on the upper end of described principal arm pivotly, the front-end and back-end of described transverse arm be respectively equipped with the first and second pulleys be respectively used to guide the hoisting rope of described dynamic compaction machinery and the front end of hoisting rope for connecting hammer ram, the center of gravity of wherein said transverse arm is positioned at the pivoting centre moved pivotally made by described transverse arm front around described principal arm along the longitudinal direction; At least one bascule, at least one bascule described is located between described transverse arm and principal arm.
According to the jib for dynamic compaction machinery of the embodiment of the present invention, by the transverse arm of eccentric type being located at pivotly the upper end of principal arm, front end and the principal arm upper end of transverse arm are relatively far away, that therefore not only can improve hammer ram when ramming hangs rise, prevent hammer ram and principal arm upper end from interfering, improve ramming efficiency, can also prevent suspension hook and detacher from touching due to swing after rammer unhooking simultaneously, friction, clash into, catch on principal arm, cause the wearing and tearing of principal arm to strengthen even to bend, damage principal arm, thus improve the application life of principal arm, in addition, by arranging bascule and transverse arm is connected pivotly with principal arm, the energy that ramming produces after breaking off relations can concentrate on release among a small circle, effectively alleviate the vibration of principal arm and car body, improve the stability of principal arm and car body, reduce the fatigue strength of principal arm, the life cycle of further raising principal arm, thus greatly reduce use cost.
In addition, also there is following additional technical feature according to the jib for dynamic compaction machinery of the embodiment of the present invention:
In one embodiment of the invention, the lower end of described transverse arm is connected by the upper end of hinge with described principal arm.
In one embodiment of the invention, the lower end of described transverse arm is provided with flap, and described flap is formed with through hole, and the center of circle of wherein said through hole is positioned at the rear of described transverse arm center of gravity along the longitudinal direction; The upper end of described principal arm is provided with hinge axis, described hinge axis through described through hole to make described transverse arm can pivotable around described hinge axis.
By being hingedly connected on principal arm by transverse arm, thus when ramming, transverse arm can around hinge axis, and under the buffering, balanced action of bascule, the swing concentration of energy of transverse arm is discharged among a small circle, reduces vibration and the fatigue strength of principal arm, improve stability and the application life of principal arm.
In one embodiment of the invention, described bascule is elastic component, and described elastic component is connected between the rear portion of described transverse arm and described principal arm with at described elastic component, form stable triangular between described principal arm and described transverse arm.Thus, when dynamic compaction machinery ramming, the swing energy of elastic component Absorbable rod transverse arm, reduces the vibration of principal arm.
In one embodiment of the invention, described elastic component is spring.
In one embodiment of the invention, described jib also comprises: damper unit, and the contiguous described elastic component of described damper unit arranges and the two ends of described damper unit are connected with described principal arm with described transverse arm respectively.
In one embodiment of the invention, described jib also comprises: transverse arm stay cord, and one end of described transverse arm stay cord is connected with the rear end of described transverse arm and the other end is connected with described principal arm.
In one embodiment of the invention, described transverse arm is combined by least one in steel plate and steel pipe and makes.Thus, not only reduce the cost of production of transverse arm, make transverse arm have higher intensity simultaneously, not fragile when ramming, ensure the safety of ramming operation.
According to the jib for dynamic compaction machinery of the embodiment of the present invention, by adopting transverse arm and the principal arm chain connection of eccentric structure, compared with prior welding mode, not only reduce the fatigue strength of transverse arm, reduce cross arm swing to the impact of principal arm, avoid suspension hook and detacher collision principal arm top after breaking off relations simultaneously, improve the life cycle of principal arm, and principal arm longitudinal length relatively in short-term, effectively increase the lifting altitude of hammer ram, after hammer ram release, bascule can balance transverse arm and absorb and swing energy, greatly reduce the vibration of principal arm and car body, improve the job stability of dynamic compaction machinery.
The dynamic compaction machinery of embodiment according to a second aspect of the present invention, comprising: car body; According to the jib for dynamic compaction machinery described in the above embodiment of the present invention, the lower end of wherein said principal arm is located on described car body pivotly; Overturning-preventing assembly, described overturning-preventing assembly is located on described car body to balance described principal arm; Lifting subassembly, described lifting subassembly comprise suspension hook and to be located at below described suspension hook, for the detacher of hanging holding hammer ram, the front end of wherein said hoisting rope is connected with described suspension hook; And control system, described control system is for controlling the work of described lifting subassembly.
In one embodiment of the invention, described overturning-preventing assembly comprises: man-like shelf, and described man-like shelf to be located on described car body and to be positioned at the rear side of described principal arm and spaced apart with described principal arm; At least one anti-dumping rope, described in every root, the two ends of anti-dumping rope are connected with described principal arm with described man-like shelf respectively; With principal arm stay cord, the two ends of described principal arm stay cord are connected with the top of described man-like shelf with the upper end of described principal arm respectively.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the front view of the T-shaped transverse arm of the jib for dynamic compaction machinery according to the embodiment of the present invention;
Fig. 2 is the top view of the T-shaped transverse arm shown in Fig. 1; With
Fig. 3 is the structural representation of the dynamic compaction machinery according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more, unless otherwise clear and definite restriction.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
First with reference to figure 1-Fig. 3, the jib 100 for dynamic compaction machinery 1000 according to the embodiment of the present invention is described below.
The jib 100 for dynamic compaction machinery 1000 according to the embodiment of the present invention comprises: principal arm 1, transverse arm 2 and at least one bascule 3.
The lower end of principal arm 1 is located on the car body 200 of dynamic compaction machinery 1000 pivotly.
Transverse arm 2 becomes T-shaped substantially, and transverse arm 2 is located on the upper end of principal arm 1 pivotly.Particularly, as shown in Figure 1, the lower end of T-shaped transverse arm 2 is connected with the upper end pivotable of principal arm 1, the front end of such T-shaped transverse arm 2, the horizontal range of namely hanging one end and principal arm 1 upper end rising hammer ram 500 is relatively large, as shown in Figure 1, thus hang rise hammer ram 500 ramming time, hammer ram 500 can be hung rise higher to improve ramming efficiency on the one hand, and hammer ram 500 can not interfere with principal arm 1 more greatly due to the horizontal range with principal arm 1 upper end, on the other hand after release hammer ram 500, can effectively prevent suspension hook 410 and detacher 420 from swinging and then rubbing, clash into and even catch on principal arm 1.
The front-end and back-end of transverse arm 2 are respectively equipped with the first pulley 21 and the second pulley 22 to be respectively used to guide the hoisting rope 600 of dynamic compaction machinery 1000, such as in the figure 2 example, first pulley 21 is one, second pulley 22 is three, the front end of hoisting rope 600 is for connecting the hammer ram 500 of dynamic compaction machinery 1000, and namely the front end of hoisting rope 600 is connected with hammer ram 500 by suspension hook 410 and detacher 420.
The center of gravity (A point as shown in Figure 1) of transverse arm 2 is positioned at the pivoting centre moved pivotally made by transverse arm 2 front around principal arm 1 along the longitudinal direction, that is, transverse arm 2 adopts eccentric structure and the front end of the contiguous transverse arm 2 of center of gravity, namely can be understood as transverse arm 2 and adopts pre-eccentric structure.Because hammer ram 500 is located at the front end of transverse arm 2, after in ramming process, hammer ram 500 discharges, the first time of transverse arm 2 is also maximum once the swinging of amplitude of fluctuation is backward, therefore transverse arm 2 is by adopting pre-eccentric structure can balance transverse arm 2 better and release swing energy, thus improves the stability of transverse arm 2.Wherein, the pre-eccentric structure of transverse arm 2 realizes by lengthening transverse arm 2 length being positioned at pivoting centre front, namely transverse arm 2 length being positioned at pivoting centre front is longer than transverse arm 2 length being positioned at pivoting centre rear, as shown in Figure 1, the usefull space between transverse arm 2 front end and principal arm 1 upper end can be utilized so better, thus under the condition of not interfering with principal arm 1 upper end at hammer ram 500, promote the height of hammer ram 500 to greatest extent, improve the ramming efficiency of dynamic compaction machinery 1000 further.
Bascule 3 is located between transverse arm 2 and principal arm 1.Specifically, one end of bascule 3 is connected with principal arm 1 and the other end is connected with the transverse arm 2 being positioned at described pivoting centre rear along the longitudinal direction.
According to the jib 100 of the embodiment of the present invention, because the lower end of principal arm 1 is connected with car body 200 pivotable, therefore before dynamic compaction machinery 1000 works, can regulate principal arm 1, such as in the example of fig. 3, principal arm 1 turns forward and is tiltedly located on car body 200, and that can improve hammer ram 500 thus hangs rise.
When dynamic compaction machinery 1000 works, hammer ram 500 freely discharges after being hung and rising to predetermined altitude, the moment disequilibrium that whereabouts due to hammer ram 500 causes transverse arm 2 to fall at hammer ram 500, transverse arm 2 can be subject to a moment contrary with hammer ram 500 falling direction, can around described pivoting centre swing (similar pendular movement) at the effect lower cross arm 2 of this moment, in transverse arm 2 swing process, bascule 3 is for keeping the balance of transverse arm 2, prevent excessive the causing of transverse arm 2 amplitude of oscillation from tumbling, bascule 3 can also absorb the swing energy of transverse arm 2 simultaneously, the swing energy of transverse arm 2 is enable to concentrate release among a small circle, thus the impact that principal arm 1 and car body 200 swing by transverse arm 2 is dropped to minimum, greatly improve stability when dynamic compaction machinery 1000 works.
According to the jib 100 for dynamic compaction machinery 1000 of the embodiment of the present invention, by the transverse arm 2 of eccentric type being located at pivotly the upper end of principal arm 1, front end and principal arm 1 upper end of transverse arm 2 are relatively far away, that therefore not only can improve hammer ram 500 when ramming hangs rise, prevent hammer ram 500 and principal arm 1 upper end from interfering, improve ramming efficiency, can also prevent suspension hook 410 and detacher 420 from touching due to swing after hammer ram 500 breaks off relations simultaneously, friction, clash into, catch on principal arm 1, cause the wearing and tearing of principal arm 1 to strengthen even to bend, damage principal arm 1, thus improve the application life of principal arm 1, in addition, by arranging bascule 3 and transverse arm 2 is connected pivotly with principal arm 1, the energy that ramming produces after breaking off relations can concentrate on release among a small circle, effectively alleviate the vibration of principal arm 1 and car body 200, improve the stability of principal arm 1 and car body 200, reduce the fatigue strength of principal arm 1, the life cycle of further raising principal arm 1, thus greatly reduce use cost.
In one embodiment of the invention, the lower end of transverse arm 2 is connected by the upper end of hinge with principal arm 1.Particularly, the lower end of transverse arm 2 is provided with flap 23, flap 23 is formed with through hole 24, and wherein the center of circle of through hole is positioned at the rear of transverse arm 2 center of gravity along the longitudinal direction, here, it should be noted that, the center of circle of through hole 24 be exactly above-mentioned in pivoting centre.The upper end of principal arm 1 is provided with hinge axis 11, hinge axis through through hole 24 to make transverse arm 2 can pivotable around described hinge axis 11.
By transverse arm 2 is hingedly connected on principal arm 1, thus when ramming, transverse arm 2 can rotate around hinge axis 11, and under the buffering, balanced action of bascule 3, the swing concentration of energy of transverse arm 2 is discharged among a small circle, reduce vibration and the fatigue strength of principal arm 1, improve stability and the application life of principal arm 1.
Certainly, the present invention is not limited to this, and in another embodiment of the present invention, flap also can be located at the upper end of principal arm 1, and accordingly, hinge axis is located at the lower end of transverse arm 1.
Advantageously, bascule 3 is elastic component, and described elastic component is connected between the rear portion of transverse arm 1 and principal arm 1 with at described elastic component, form stable triangular between principal arm 1 and transverse arm 2.Such as in one embodiment of the invention, elastic component can be spring, and namely the two ends of spring are connected with transverse arm 2 with principal arm 1 respectively, after the release of hammer ram 500 in ramming operating process, the energy of spring Absorbable rod transverse arm 2 when hinge axis 11 swings, reduction transverse arm 2 swings the impact on principal arm 1.Here, it should be noted that, spring should make broad understanding, and namely spring can be helical spring, gas spring or rubber spring, or has the element of spring function, such as spring cylinder or single effect formula oil cylinder or double-action type oil cylinder.
Further, jib 100 also comprises damper unit (scheming not shown), and the contiguous elastic component of damper unit arranges and the two ends of damper unit are connected with principal arm 1 with transverse arm 2 respectively.By arranging damper unit, after hammer ram 500 discharges, transverse arm 2 starts to do pendular movement, and damper unit can be decayed rapidly the swing of transverse arm 2, reduces the amplitude of transverse arm 2 gradually, thus makes the rapid exhaustion release of the swing energy of transverse arm 2.Wherein damper unit and elastic component preferably adopt set-up mode in parallel, like this in transverse arm 2 swing process, transverse arm 2 one aspect can keep balance, and the opposing party can make swing energy discharge fast among a small circle, not only reduce the vibration effect to principal arm 1, and the quick exhaustion of transverse arm 2 amplitude can also shorten the time of dynamic compaction machinery 1,000 twice ramming operation, increases work efficiency.Wherein damper unit is for prior art is also known by one of ordinary skilled in the art, be appreciated that, the concrete structure of damper unit does not have particular/special requirement, and alternatively, damper unit can adopt existing double-action type damper or single effect formula damper.
For improving the stability of transverse arm 2 further, in an example of the present invention, jib 100 also comprises transverse arm stay cord 4, one end of transverse arm stay cord 4 is connected with the rear end of transverse arm 2 and the other end is connected with principal arm 1, and wherein transverse arm stretching 4 can for many wire rope be to balance the eccentric moment of transverse arm 2 better.
Because transverse arm 2 will bear the force and moment in all directions when ramming, therefore transverse arm 2 should have very high intensity, in the selection of material, transverse arm 2 can adopt there is low cost, the metal material of high strength makes, such as in one embodiment of the invention, transverse arm 2 adopts steel plate structure.Certainly, the present invention is not limited to this, and in other embodiments of the present invention, transverse arm 2 also can adopt the combination construction of steel tubular structure or steel plate and steel pipe.
Thus, not only reduce the cost of production of transverse arm 2, make transverse arm 2 have higher intensity simultaneously, not fragile when ramming, ensure the safety of ramming operation.
Alternatively, transverse arm 2 can adopt the steel plate structure of monomeric form, that is, transverse arm 2 by multiple separately and the steelframe be detachably connected form, like this in practical work process, suitably can increase transverse arm 2 front end and the ramming end horizontal range to hinge axis 11 in principal arm 1 height one timing, thus raising hammer ram 500 hang rise.For the structure of principal arm 1, also can adopt the steel plate structure of this monomeric form, namely increase the height of principal arm 1 by increasing single-unit principal arm steelframe, and then improve ramming efficiency.
According to the jib 100 for dynamic compaction machinery 1000 of the embodiment of the present invention, by adopting transverse arm 2 and principal arm 1 chain connection of eccentric structure, compared with prior welding mode, not only reduce the fatigue strength of transverse arm 2, reduction transverse arm 2 swings the impact on principal arm 1, avoid suspension hook 410 and detacher 420 to collide principal arm 1 top after breaking off relations simultaneously, improve the life cycle of principal arm 1, and principal arm 1 longitudinal length relatively in short-term, effectively increase the lifting altitude of hammer ram 500, after hammer ram 500 discharges, bascule 3 can balance transverse arm 2 and absorb and swing energy, greatly reduce the vibration of principal arm 1 and car body 200, improve the job stability of dynamic compaction machinery 1000.
Below with reference to Fig. 1-Fig. 3, the dynamic compaction machinery 1000 according to the embodiment of the present invention is described.
According to the dynamic compaction machinery 1000 of the embodiment of the present invention, comprise car body 200, overturning-preventing assembly 300, lifting subassembly 400, for control lifting subassembly 400 work control system and according to the jib 100 described in the above embodiment of the present invention.Wherein the lower end of the principal arm 1 of jib 100 is located on car body 200 pivotly.Overturning-preventing assembly 300 is located on car body 200 with counterbalanced main arm 1, particularly, overturning-preventing assembly 300 comprises man-like shelf 310, at least one anti-dumping rope 320 and principal arm stay cord 330, man-like shelf 310 to be located on car body 200 and to be positioned at the rear side of principal arm 1 and spaced apart with principal arm 1, the two ends of every root anti-dumping rope 320 are connected with principal arm 1 with man-like shelf 310 respectively, the two ends of principal arm stay cord 330 are connected with the top of man-like shelf 310 with the upper end of principal arm 1 respectively, wherein principal arm stay cord 330 and anti-dumping rope 320 are for keeping the balance of principal arm 1 to ensure the stability that principal arm 1 works, thus improve the safety of dynamic compaction machinery 1000 working environment.
Lifting subassembly 400 comprise suspension hook 410 and to be located at below suspension hook 410, for the detacher 420 of hanging holding hammer ram 500, wherein the front end of hoisting rope 600 is connected with suspension hook 410.Detacher 420 is for freely discharging working the hammer ram 500 rising to certain altitude, after release hammer ram 500, detacher 420 is by swing (similar pendular movement), wherein the detacher 420 first time swing amplitude of oscillation is maximum, therefore detacher 420 travels forward after can being arranged in release hammer ram 500, namely move to the direction away from principal arm 1, such as individual in the example of fig. 1, the mouth of hook of detacher 420 is towards front side, and the pull handle 430 on detacher 420 is positioned at the front of detacher 420, when now control detacher 420 completes unhook operation, detacher 420 is by forward rocking motion, thus reduce detacher 420 and suspension hook 410 touches, friction, clash into the probability of principal arm 1.
Waiting according to other formation of the dynamic compaction machinery 1000 of the embodiment of the present invention has been prior art, such as dynamic compaction machinery 1000 adopts caterpillar belt structure to improve the stability of car body 200, dynamic compaction machinery 1000 also can have multiple stabilizing leg to keep the balance of dynamic compaction machinery 1000 when ramming, the basic structure of these dynamic compaction machineries 1000 and operating principle etc., known by art personnel, are therefore described in detail here no longer one by one.
In the description of this manual, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. for a jib for dynamic compaction machinery, it is characterized in that, comprising:
Principal arm, the lower end of described principal arm is located on the car body of described dynamic compaction machinery pivotly;
Substantially become the transverse arm of T-shaped, described transverse arm is located on the upper end of described principal arm pivotly, the front-end and back-end of described transverse arm be respectively equipped with the first and second pulleys be respectively used to guide the hoisting rope of described dynamic compaction machinery and the front end of hoisting rope for connecting hammer ram, the center of gravity of wherein said transverse arm is positioned at the pivoting centre moved pivotally made by described transverse arm front around described principal arm along the longitudinal direction;
At least one bascule, at least one bascule described is located between described transverse arm and principal arm.
2. the jib for dynamic compaction machinery according to claim 1, is characterized in that, the lower end of described transverse arm is connected by the upper end of hinge with described principal arm.
3. the jib for dynamic compaction machinery according to claim 1, is characterized in that, the lower end of described transverse arm is provided with flap, and described flap is formed with through hole, and the center of circle of wherein said through hole is positioned at the rear of described transverse arm center of gravity along the longitudinal direction;
The upper end of described principal arm is provided with hinge axis, described hinge axis through described through hole to make described transverse arm can pivotable around described hinge axis.
4. the jib for dynamic compaction machinery according to claim 1, it is characterized in that, described bascule is elastic component, and described elastic component is connected between the rear portion of described transverse arm and described principal arm with at described elastic component, form stable triangular between described principal arm and described transverse arm.
5. the jib for dynamic compaction machinery according to claim 4, is characterized in that, described elastic component is spring.
6. the jib for dynamic compaction machinery according to claim 5, is characterized in that, described jib also comprises: damper unit, and the contiguous described elastic component of described damper unit arranges and the two ends of described damper unit are connected with described principal arm with described transverse arm respectively.
7. the jib for dynamic compaction machinery according to claim 1, is characterized in that, also comprise: transverse arm stay cord, and one end of described transverse arm stay cord is connected with the rear end of described transverse arm and the other end is connected with described principal arm.
8. the jib for dynamic compaction machinery according to any one of claim 1-7, is characterized in that, described transverse arm is made up of steel plate; Or described transverse arm is made up of steel pipe; Or described transverse arm is made up of steel plate and steel pipe combination.
9. a dynamic compaction machinery, is characterized in that, comprising:
Car body;
The jib for dynamic compaction machinery according to any one of claim 1-8, the lower end of wherein said principal arm is located on described car body pivotly;
Overturning-preventing assembly, described overturning-preventing assembly is located on described car body to balance described principal arm;
Lifting subassembly, described lifting subassembly comprise suspension hook and to be located at below described suspension hook, for the detacher of hanging holding hammer ram, the front end of wherein said hoisting rope is connected with described suspension hook; With
Control system, described control system is for controlling the work of described lifting subassembly.
10. dynamic compaction machinery according to claim 9, is characterized in that, described overturning-preventing assembly comprises:
Man-like shelf, described man-like shelf to be located on described car body and to be positioned at the rear side of described principal arm and spaced apart with described principal arm;
At least one anti-dumping rope, described in every root, the two ends of anti-dumping rope are connected with described principal arm with described man-like shelf respectively; With
Principal arm stay cord, the two ends of described principal arm stay cord are connected with the top of described man-like shelf with the upper end of described principal arm respectively.
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| CN201210141422.1A CN103388328B (en) | 2012-05-08 | 2012-05-08 | Arm support for dynamic compaction machine and dynamic compaction machine with same |
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| CN201210141422.1A CN103388328B (en) | 2012-05-08 | 2012-05-08 | Arm support for dynamic compaction machine and dynamic compaction machine with same |
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| CN103388328A CN103388328A (en) | 2013-11-13 |
| CN103388328B true CN103388328B (en) | 2015-05-20 |
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| CN2641124Y (en) * | 2003-09-25 | 2004-09-15 | 中化岩土工程有限公司 | Crawler type strong rammer compactor for special uprpose |
| CN201144432Y (en) * | 2007-12-15 | 2008-11-05 | 徐州鹏达科技有限公司 | Crawler type multifunctional rotary drilling rig |
| CN202194172U (en) * | 2011-08-03 | 2012-04-18 | 上蔡县恒通机械有限公司 | Novel frame of four-wheel straight arm type grass grasper |
| CN202610788U (en) * | 2012-05-08 | 2012-12-19 | 北汽福田汽车股份有限公司 | Boom of dynamic compaction machine and dynamic compaction machine with same |
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| CN103388328A (en) | 2013-11-13 |
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