CN102979080B - Novel dynamic compaction machine - Google Patents
Novel dynamic compaction machine Download PDFInfo
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- CN102979080B CN102979080B CN201210478682.8A CN201210478682A CN102979080B CN 102979080 B CN102979080 B CN 102979080B CN 201210478682 A CN201210478682 A CN 201210478682A CN 102979080 B CN102979080 B CN 102979080B
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Abstract
The invention provides a novel dynamic compaction machine, comprising a vehicle body, a boom, a amplitude-varying cylinder, a lifting mechanism and a tamper, wherein the bottom end of the boom is hinged onto the vehicle body, and one end of the amplitude-varying cylinder is hinged onto the vehicle body; the other end of the amplitude-varying cylinder is hinged with the boom, and the amplitude-varying cylinder can drive the boom to make amplitude-varying action; and a lifting pull rope of the lifting mechanism is connected with the tamper across the top end of the boom, and the lifting mechanism can drive the tamper to make lifting action. According to the novel dynamic compaction machine provided by the invention, the whole structure of the dynamic compaction machine is reasonably arranged, and the amplitude-varying adjustment of the boom can be carried out by the amplitude-varying cylinder, so that the vibration of the boom can be reduced in the dynamic compaction operation, and thus the whole work stability of the dynamic compaction machine is improved, and the service life of each component is prolonged.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of Novel heavy tamping machine.
Background technology
Current, the range of application of strong rammer is very extensive, such as being applied in industry and civilian construction, warehouse, stockyard, harbour, airport, road and bridge, man-made island, oil storage tank etc.Strong rammer is after hammer ram is hung suitable height, it freely to be fallen, hammer ram applies strong impact force and vibration to ground, soil structures is destroyed, the hole compression, soil body local liquefaction, and by crack, discharge pore water and gas, foundation soil is fixed under new situation, thereby improve the supporting capacity of ground, reduce the compressibilty of ground; In the strong rammer process, ram energy and can also improve the uniformity coefficient of soil layer, the ground relative settlement that minimizing may occur.
Dynamic compaction machinery is the typical construction equipment of realizing strong rammer, and due to advantages such as dynamic compaction machinery has that economy and facility, equipment are simple, construction is convenient, quality is easily controlled, applied widely, short construction periods, dynamic compaction machinery has obtained popularization rapidly in the engineering application.
As shown in Figure 1, be the structural representation of a kind of typical dynamic compaction machinery in prior art.
With reference to Fig. 1, this dynamic compaction machinery comprises car body 1', truss arm 2', jib lubbing mechanism 3', hoisting mechanism 4' and hammer ram 5', wherein, the bottom of truss arm 2' is hinged on car body 1', the top of truss arm 2' arranges gooseneck boom arm 6', the wire rope of jib lubbing mechanism 3' is connected with truss arm 2', keeps the spatial attitude of truss arm 2' by jib lubbing mechanism 3', and jib lubbing mechanism 3' can rotate to realize the angle adjustment of truss arm 2' by driving truss arm 2' around pin joint; On gooseneck boom arm 6', leading block 7' is set, the wire rope of hoisting mechanism 4' strides across leading block 7' and with hammer ram 5', is connected, and can drive after hammer ram 5' rises to suitable height and then discharge hammer ram to ram operation; When the strong rammer operation, truss arm 2' carries out luffing and revolution action, to meet dynamic compaction machinery job area demand.
Characteristics according to the strong rammer operation, hammer ram 5' rises to while suitably highly discharging, the moment moment that is applied to truss arm 2' cancels, truss arm 2' will there will be BI bounce-back action by a relatively large margin, thereby cause that dynamic compaction machinery produces vibration, and its oscillation phenomenon of difference of ramming energy along with dynamic compaction machinery also strengthens thereupon, affects the overall work stability of dynamic compaction machinery and the life-span of each component.
Therefore, how the overall structure of dynamic compaction machinery reasonably being designed,, to improve overall work stability and the application life of dynamic compaction machinery, is those skilled in the art's technical issues that need to address.
Summary of the invention
The object of the present invention is to provide a kind of Novel heavy tamping machine, the integral arrangement of this dynamic compaction machinery is reasonable, adopts amplitude oil cylinder to drive jib and carries out the luffing adjustment, can reduce the vibration of jib when the strong rammer operation, and its overall work stability is high.
For solving the problems of the technologies described above, the invention provides a kind of Novel heavy tamping machine, comprising: car body, jib, amplitude oil cylinder, hoisting mechanism, hammer ram; The bottom of jib is hinged on car body, and amplitude oil cylinder one end is hinged on car body, and the other end and jib are hinged, and amplitude oil cylinder can drive jib and carry out the luffing action; The top that the lifting stay cord of hoisting mechanism strides across jib is connected with hammer ram, and hoisting mechanism can drive hammer ram and carry out enhancing action.
Preferably, jib is formed by connecting by more piece joint arm, and every joint joint arm is all truss-type cantilever crane.
Preferably, jib is formed by connecting by more piece joint arm, and every joint joint arm is all box-girder.
Preferably, jib is made by metal material or nonmetals.
Preferably, described metal material is steel and aluminium alloys, and described nonmetals are carbon fiber.
Preferably, the bottom of jib is hinged on car body by basic bearing pin, hinged and by tightening member, be fixed by connecting bearing pin between arbitrary neighborhood two joint joint arms, connect bearing pin and basic bearing pin is vertical arranges, two connection bearing pins of arbitrary neighborhood are distributed in the both sides of jib axis.
Preferably, in the end of joint arm, flange is set, the flange of adjacent two joint joint arms is fixedly connected with by tightening member, and perhaps, by junction plate is set, tightening member is fixed on junction plate on adjacent two joint joint arms.
Preferably, jib is variable section structure, and jib integral body is the fish belly type.
Preferably, hoisting mechanism comprises at least one lift unit that is arranged on jib, described lift unit comprises lift cylinder, running block, fixed pulley group and promotes stay cord, the lifting stay cord is wound on the fixed pulley group and is connected with running block and with hammer ram, is connected, lift cylinder and fixed pulley group are installed on jib, running block is between lift cylinder and fixed pulley group, and running block comprises pulley yoke and a plurality of movable pulley that are arranged on pulley yoke, and the piston rod of lift cylinder is connected with pulley yoke.
Preferably, lift cylinder, running block and fixed pulley group are arranged on same joint arm or different saving on arm.
Preferably, on the backboard of box-girder, bracing frame is set, the fixed pulley group is arranged on bracing frame.
Preferably, two supports are set on the backboard of box-girder, in the inboard of two supports, gathering sill are set respectively, pulley yoke can slide in gathering sill.
Preferably, running block comprises a plurality of movable pulley, and the fixed pulley group comprises a plurality of fixed pulleys, promotes stay cord and alternately is wound on fixed pulley and movable pulley.
In this Novel heavy tamping machine, the bottom of jib is hinged on car body, and amplitude oil cylinder one end is hinged on car body, and the other end and jib are hinged, and amplitude oil cylinder can drive jib and carry out the luffing action; The top that the lifting stay cord of hoisting mechanism strides across jib is connected with hammer ram, and hoisting mechanism can drive hammer ram and carry out enhancing action.
By designing dexterously amplitude oil cylinder, jib is carried out the luffing adjustment, the integral arrangement of dynamic compaction machinery is reasonable, adopt amplitude oil cylinder to drive jib and carry out the luffing action, can reduce the vibration of jib when carrying out the strong rammer operation, thereby improve the overall work stability of dynamic compaction machinery and the application life of improving each parts.
In a preferred embodiment, every joint joint arm is all the box-girder that multi-sheets surrounds.Jib is the box-girder that multi-sheets surrounds, box-girder simple in structure, and processing and fabricating is convenient; In box-girder, the junction of multi-sheets is stressed less, and the entire compression ability of jib is strong, can meet the force request of dynamic compaction machinery when the strong rammer operation, and functional reliability is high.Jib adopts the joint arm of more piece box-girder and is formed by connecting, and is convenient to making, installation and the transportation of jib.
In a preferred embodiment, described joint arm can adopt four block plates to be welded into box-girder.Box-girder adopts four block plates to be welded, and forms four weld seams when welding, and welding processing is convenient, and the welding quality of weld seam easily controls, and in the case box-girder, weld seam is stressed less, and the entire compression ability of box-girder is strong, and functional reliability is high.
In a preferred embodiment, hinged by connecting bearing pin between arbitrary neighborhood two joint joint arms, the joint arm can rotate around being connected bearing pin under external force with saving between arm, connecting bearing pin arranges with bearing pin is vertical substantially, two of arbitrary neighborhoods connect bearing pin and are distributed in the both sides of jib axis, have realized sequentially folding between more piece joint arm; When the strong rammer operation, more piece is saved the arm expansion and by tightening member, arbitrary neighborhood two joint joint arms are fixed, more piece joint arm connects into overall structure; When hauling operation, more piece joint arm can fold, and respectively joint joint arm can sequentially be folded to the same side of the first joint joint arm, and by locking element, more piece is saved arm and lock.In the jib of more piece joint arm, more piece joint arm can launch and fold, and it launches and folding mode is the M type, and easy to operate, transfer process is quick, has met the working condition requirement of strong rammer operation and hauling operation.
In a preferred embodiment, hoisting mechanism comprises at least one lift unit that is arranged on jib, lift unit comprises lift cylinder, running block, fixed pulley group and promotes stay cord, promote stay cord and can be wire rope, the lifting stay cord is wound on the fixed pulley group and is connected with running block and with hammer ram, is connected, and lift cylinder and fixed pulley group are installed on jib, and running block is between lift cylinder and fixed pulley group, running block is arranged on pulley yoke, and the piston rod of lift cylinder is connected with pulley yoke.
Hoisting mechanism is arranged on the box-girder jib, sufficiently and reasonably utilized the arrangement space of box-girder, the compact overall structure of dynamic compaction machinery, lift cylinder is when carrying out the hammer ram enhancing action, promote operating steadily of stay cord, it is less that unbalance loading is impacted, and drives wire rope with respect to the elevator of prior art and promote, and adopts the cost that oil cylinder and assembly pulley can the decrease hoisting mechanism; Hoisting mechanism adopts the combination of oil cylinder, assembly pulley and lifting stay cord, can realize that by designing dexterously the winding method of lifting stay cord on running block and fixed pulley group hoisting mechanism has different operating efficiencies, for the enhanced feature of hoisting mechanism provides larger extending space, thereby meet the demands that promote working conditions more.
In a preferred embodiment, two supports are set on jib, in the inboard of two supports, gathering sill are set respectively, pulley yoke can slide in gathering sill.Like this, the pulley yoke of carrying movable pulley can move along projected path on the box-girder jib, can avoid the wild effects such as running block rocking at the volley, swing, thus lift cylinder can drive promote stay cord stably promote hammer ram to suitable height to carry out the strong rammer operation.
Description of drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not form improper restriction of the present invention.
Fig. 1 is the structural representation of a kind of typical dynamic compaction machinery in prior art.
Fig. 2 is the structural representation of a kind of Novel heavy tamping machine of embodiment of the present invention proposition.
Fig. 3 is that in Fig. 2, four sheet material I shapes are arranged the joint arm schematic cross-section that surrounds.
Fig. 4 is that in Fig. 2, four sheet material H fonts are arranged the joint arm schematic cross-section that surrounds.
Fig. 5 is the joint arm schematic cross-section that in Fig. 2, U-shaped steel and a block plate surround.
Fig. 6 is that the jib of Novel heavy tamping machine in Fig. 2 is in the schematic diagram under the first state.
Fig. 7 is that the jib of Novel heavy tamping machine in Fig. 2 is in the schematic diagram under the second state.
Fig. 8 is the structural representation of the lift unit of Novel heavy tamping machine in Fig. 2.
Description of reference numerals in Fig. 1:
Car body 1', truss arm 2', jib lubbing mechanism 3', hoisting mechanism 4', hammer ram 5', gooseneck boom arm 6', leading block 7'.
Description of reference numerals in Fig. 2 to Fig. 6:
Car body 1, basic bearing pin 100, jib 2, root joint arm 21, intermediate arm 22, upper joint arm 23, first connect bearing pin 200, second and connect bearing pin 300, steel plate 201, U-shaped steel 202, amplitude oil cylinder 3, lift unit 4, lift cylinder 41, running block 42, fixed pulley group 43, promote stay cord 44, pulley yoke 420, bracing frame 430, hammer ram 5, arm head 6, leading block 7.
The specific embodiment
In order to make those skilled in the art person understand better technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 2, Fig. 2 is the structural representation of a kind of Novel heavy tamping machine of embodiment of the present invention proposition.
with reference to Fig. 2, a kind of Novel heavy tamping machine that the embodiment of the present invention provides, comprise: car body 1, jib 2, amplitude oil cylinder 3, hoisting mechanism and hammer ram 5, wherein, the bottom of jib 2 is hinged on car body 1 by basic bearing pin 100, one end of amplitude oil cylinder 3 is hinged on car body 1, the other end and jib 2 are hinged, can drive jib 2 by amplitude oil cylinder 3 rotates around basic bearing pin 100, to realize the luffing adjustment of jib 2, on the top of jib 2, arm head 6 is set, be provided with leading block 7 on arm head 6, the lifting stay cord of hoisting mechanism strides across leading block 7 and is connected with hammer ram 5, hoisting mechanism can drive hammer ram 5 and carry out enhancing action, hoisting mechanism is promoted to suitable height with hammer ram and discharges hammer ram, carry out the strong rammer operation.
The dynamic compaction machinery that the embodiment of the present invention proposes, the installation relation in the classical dynamic compaction machinery of subversiveness ground change between structure, jib and the car body of jib, structure and the installation relation of jib lubbing mechanism.By designing dexterously amplitude oil cylinder, jib is carried out the luffing adjustment, amplitude oil cylinder can drive the rotation with in surface of jib at the paper place in Fig. 2: when carrying out the strong rammer operation, the piston rod of amplitude oil cylinder extends to promote jib and holds up and adjust jib to suitable spatial attitude, when carrying out hauling operation, the piston rod of amplitude oil cylinder is retracted to drive jib and is recovered on car body.When the integral layout design of dynamic compaction machinery, jib is hinged on the rear end of car body and the front end that amplitude oil cylinder is hinged on car body, has larger span from bottom to the top of jib like this, can not interfere phenomenon with jib in the hammer ram lifting process, its integral arrangement is reasonable, compact, improved the distribution of force of dynamic compaction machinery, can improve the stress performance of dynamic compaction machinery when the strong rammer operation, thereby can reduce the vibration of jib, improve the overall work stability of dynamic compaction machinery and the application life of improving each parts.
In Fig. 2, jib 2 is formed by connecting by more piece joint arm, and every joint joint arm is all the box-girder that multi-sheets surrounds; Box-girder simple in structure, processing and fabricating is convenient, and in box-girder, the junction of multi-sheets is stressed less, and the entire compression ability of jib is strong, can meet the force request of dynamic compaction machinery when the strong rammer operation, and functional reliability is high; The processing and fabricating of single-unit joint arm is simple, and jib adopts more piece joint arm to be formed by connecting, its assembling and transport very convenient quick., according to the needs of strong rammer application scenarios, when different strong rammer operations, can select the length of the joint joint number of arm in jib 2 and every joint joint arm, thereby make the length parameter of whole jib 2 meet the requirement of strong rammer operation.
Above-mentioned jib 2 is formed by connecting by more piece joint arm, and every joint joint arm is all truss-type cantilever crane; The design and fabrication technology of truss-type cantilever crane is ripe, and its stress performance meets the job requirements of dynamic compaction machinery.Above-mentioned jib 2 is formed by connecting by more piece joint arm, and every joint joint arm is all box-girder.
Jib 2 can adopt metal material or nonmetals to make box-girder, and for example, metal material can adopt steel, aluminium alloys etc., and nonmetals can be the high-strength materials such as carbon fiber.For example, jib adopts nonmetals to make, and for example carbon fiber, adopt integrated mode to make the jib of the box-girder of carbon fiber; The joint arm can adopt metal material to make, and for example steel plate, adopt welding manner to surround the joint arm of box-girder.
The joint arm is welded into box-girder by four block plates; Box-girder adopts four block plates to be welded, and it is simple in structure, forms four weld seams when welding, and welding processing is convenient, and the welding quality of weld seam is easily controlled; While carrying out the strong rammer operation, in box-girder, weld seam is stressed less, and the entire compression ability of joint arm is strong, and functional reliability is high.In welding process, can adopt different arrangement forms to four block plates, four block plates are defined as respectively backboard, base plate and biside plate, and in Fig. 3, four block plates 201 adopt the I shape arrangement, in Fig. 4, four block plates 201 adopt H type arrangement, wherein, are positioned at top and are defined as backboard, be positioned at below and be defined as base plate, be positioned at both sides and be defined as side plate.
As shown in Figure 5, the joint arm is welded into box-girder by U-shaped steel 202 and a block plate 201; U-shaped steel 202 has three sides, adopt U-shaped steel 202 and a block plate 201 can surround the box-girder that cross section is rectangle, form two weld seams when welding, the box-girder that surrounds with respect to four block plates, reduced the quantity of weld seam, thereby the operating procedure that reduces to weld, convenient processing and fabricating, and, whole joint arm adopts U-shaped steel 202 and a block plate 201, reduced the quantity of steel plate and the quantity of weld seam, can be better the entire compression ability that improves the joint arm, make the strong rammer job stabilization stronger.
In the above-described embodiments, the joint arm forms box-girder by the plurality of steel plates welding,, in order further to improve the entire compression intensity of joint arm, can also arrange laterally and/or strengthen longitudinally gusset in box-girder, by strengthening gusset, multi-sheets is connected as a whole; When the joint arm bears pressure, strengthen the entire compression intensity that gusset can improve whole joint arm, and the pressure that acts on the joint arm can transmit by strengthening gusset, make pressure to be applied to greatest extent on sheet material, thereby reduce the stressed of commissure, thereby can further improve the functional reliability of box-girder joint arm.
With reference to Fig. 2, in the present embodiment, the jib 2 of dynamic compaction machinery is formed by connecting by three joint joint arms, three joint joint arms are box-girder, it is respectively root joint arm 21, intermediate arm 22 and upper joint arm 23, and intermediate arm 22 is connected between root joint arm 21 and upper joint arm 23, and the bottom of root joint arm 21 is hinged on car body 1 by basic bearing pin, amplitude oil cylinder and root joint arm 21 are hinged, and arm head 6 is arranged on the top of joint arm 23.
when specific design, with reference to figure 6 and Fig. 7, be connected bearing pin 200 by first between root joint arm 21 and intermediate arm 22 hinged, be connected bearing pin 300 by second between intermediate arm 22 and upper joint arm 23 hinged, and two joint bearing pins and the basic vertical setting of bearing pin 100, like this, root joint arm 21 can be connected bearing pin 200 around first with intermediate arm 22 and rotate, intermediate arm 22 can be connected bearing pin 300 around second with upper joint arm 23 and rotate, and both rotational planes are all vertical with the luffing plane of jib 2, namely rotate in the rotational plane perpendicular to the paper place, thereby realized root joint arm 21, the expansion of intermediate arm 22 and upper joint arm 23 and folding, and, fix by tightening member between adjacent connecting joint arm.
Further, first connects bearing pin 200 is positioned at the right side of jib axis, second connects bearing pin 300 is positioned at the left side of jib axis, when specific design, hinged seat is set and by first, connects bearing pin 200 on the right side side plate that root joint arm 21 is connected with intermediate arm and connect, at intermediate arm 22 be connected on the left side side plate of joint arm and hinged seat be set and by the second connection bearing pin 300, connect.In the rotation process of more piece joint arm, contrast is with reference to figure 6 and Fig. 7, root joint arm 21, intermediate arm 22 and upper joint arm 23 can be sequentially folding, concrete, upper joint arm 23 can rotate and be folded to the left side of intermediate arm 22, and intermediate arm 22 can rotate and be folded to the right side of root joint arm 21, and after folding completing, intermediate arm 22 and upper joint arm 23 all are positioned at the right side of root joint arm, and upper joint arm 23 is positioned at the right side of intermediate arm, and three joint joint arms form folding attitude as shown in Figure 7.
Apparent, in the jib of more piece joint arm, two of arbitrary neighborhoods connect bearing pin and are distributed in the both sides of jib axis, more piece joint arm is launching and when folding, it launches and folding mode is the M type, and it is easy to operate, transfer process is quick, can meet the working condition requirement of strong rammer operation and hauling operation.
Based on the annexation between above-mentioned more piece joint arm, when the strong rammer operation, rotate three joint joint arms so that three joint joint arms are launched, and by tightening member, root is saved arm 21 and be fixed with upper joint arm 23 with intermediate arm 22, intermediate arm 22, like this, more piece joint arm connects into overall structure and becomes attitude shown in Figure 6; When hauling operation, unclamp tightening member, can mutually rotate between root joint arm 21 and intermediate arm 22, intermediate arm 22 and upper joint arm 23, connect bearing pin 200 and be connected the set-up mode that connects bearing pin 300 based on above-mentioned first, one-tenth attitude shown in Figure 7 after three folding the completing of joint joint arm, rotations for fear of three joint joint arms when the transportation, lock three joint joint arms by locking element after folding completing, realize stable, safety, transport reliably.
On the basis of above-mentioned dynamic compaction machinery, can save tightening member and the locking element that arm connects to more piece and be further detailed.
Above-mentioned tightening member can be bolt, is fixed by bolt between root joint arm 21 and intermediate arm 22, intermediate arm 22 and upper joint arm 23.Be fixed by bolt between more piece joint arm, bolt connecting mode is convenient to the installation and removal of more piece joint arm, is easy to realize.
In a kind of specific embodiment, in the end of joint arm, flange is set, the flange of adjacent two joint joint arms is bolted to connection; For example, root joint arm 21, intermediate arm 22 and on flange all is set on joint arm 23, be provided with through hole on flange, bolt passes the through hole of root joint arm 21 and intermediate arm 22 upper flanges and by nut screwing clamping, fixes, and bolt passes the through hole of intermediate arm 22 and upper joint arm 23 upper flanges and by nut screwing clamping, fixes.When specific design, can save the one side at least of backboard, base plate and left plate of arm 21 and intermediate arm 22 or three at root flange is set, and a plurality of through holes are set on flange; Can intermediate arm 22 and on the one side at least of backboard, base plate and right plate of joint arm 23 or three flange is set, and a plurality of through holes are set on flange.Be to be understood that, can also form circumferential flanging in the end of joint arm, the flanging of adjacent two joint joint arms is bolted to connection, and the set-up mode of this set-up mode and flange is identical.
In another kind of specific embodiment,, by junction plate is set, junction plate is tiled in the junction of root joint arm 21 and intermediate arm 22, and by bolt, respectively junction plate is fixed on root joint arm 21 and intermediate arm 22, realized being fixedly connected with of two joint joint arms; Can also intermediate arm 22 with on adopt junction plate and bolt to be fixed on joint arm 23 mode.
Need to prove, above-mentioned mode with bolts can realize being fixedly connected with of adjacent two joint joint arms, in actual application, more piece saves in the connection procedure of arm in dynamic compaction machinery, be not limited to single flange or flanging mode, the mode that can also adopt flange and flanging to make up, be fixedly connected with to realize that adjacent two joints save between arms.
Above-mentioned locking element can be wire rope, after folding the completing of more piece joint arm, adopt wire rope that more piece is saved arm binding locking, avoid relatively rotating of more piece joint arm in transportation, can also on the joint arm, block be set further, to stablize better wire rope; Above-mentioned locking element can also be snap close, with snap close, two joint arms is locked after adjacent two folding putting in place of joint arm.
In specific embodiment, stress factor according to the jib of dynamic compaction machinery, it is variable section structure that jib can be set, as shown in Figure 2, the sectional dimension of root joint arm 21 is greater than the sectional dimension of intermediate arm 22, and the sectional dimension of intermediate arm 22 is greater than the sectional dimension of upper joint arm 23, according to practical application request, the sectional dimension from the bottom to the top that root joint arm 21, intermediate arm 22 and upper joint arm 23 can also be set reduces gradually, under the prerequisite that meets joint arm stress performance, and economical with materials and cost.
In actual application, jib is variable section structure, and jib integral body is the large fish belly type structure in little middle part, two, to meet the holistic resistant behavior of dynamic compaction machinery jib.
In each load position of jib, for example, the pin joint of amplitude oil cylinder, lift unit are in the mounting points position of jib, by increasing the sectional dimension of jib, further to increase whole bending resistance, the torsional property of jib.
In the dynamic compaction machinery of above-described embodiment, improvement based on the structure of the installation relation between the structure to jib in dynamic compaction machinery 2, jib 2 and car body 1, jib lubbing mechanism 3 and the relation of installation, further, can also structure and the installation relation of hoisting mechanism be described.
with reference to figure 2 and Fig. 8, hoisting mechanism comprises at least one lift unit 4 that is arranged on jib 2, lift unit 4 comprises lift cylinder 41, running block 42, fixed pulley group 43 and lifting stay cord 44, running block 42 comprises pulley yoke 420 and a plurality of movable pulley, a plurality of movable pulley are arranged on pulley yoke 420 by rotating shaft, fixed pulley group 43 comprises a plurality of fixed pulleys, promoting stay cord 44 is wound on the pulley of fixed pulley group 43 and running block 42, and its free end is used for being connected with hammer ram, lift cylinder 41 and fixed pulley group 43 are installed on jib, running block 42 is between lift cylinder 41 and fixed pulley group 43, running block 42 is arranged on pulley yoke 420, the piston rod of lift cylinder 41 is connected with pulley yoke 420, thereby lift cylinder 41 can drive running block 42 and move traction enhancement stay cord 44, and by promoting stay cord 44 drive hammer rams, carry out enhancing action.In actual applications, promote stay cord 44 and can adopt wire rope.
As preferred embodiment, lift cylinder in lift unit 41, running block 42 and fixed pulley group 43 can be arranged on the backboard of box-girder, like this, promote stay cord 44 and can stride across leading block along the axis of jib, avoid producing the unbalance loading phenomenon.Certainly,, in the situation that do not interfere, the part parts can be arranged on the side plate of box-girder.
In the concrete structure placement process, as shown in Figure 8, fixed pulley group 43 comprises a plurality of fixed pulleys, it is arranged on jib 2, bracing frame 430 can be set on the backboard of jib 2, a plurality of fixed pulleys in fixed pulley group 43 are arranged on bracing frame 430, like this by rotating shaft, fixed pulley group 43 is relatively fixing with respect to the locus of jib 2, rotates on a plurality of fixed pulleys under the tractive force effect that promotes stay cord 44 can be with respect to bracing frame 430; Lift cylinder 41 is arranged on jib 2, and is concrete, and the cylinder barrel of lift cylinder 41 can be fixed on the backboard of jib, also the cylinder barrel of lift cylinder 41 can be hingedly mounted on the backboard of jib, and the piston rod of lift cylinder 41 is connected with pulley yoke.
When carrying out the strong rammer operation, the piston rod of controlling lift cylinder 41 carries out retract action, drives pulley yoke to away from fixed pulley group 43 1 side shiftings, and the lifting stay cord 44 between fixed pulley group 43 and running block 42 is elongated, correspondingly, promote stay cord 44 drive hammer rams and carry out enhancing action; On the other hand, when the piston rod of lift cylinder 41 carries out extend action, promote the free end of stay cord 44 under external force, pulley yoke can be to close fixed pulley group 43 1 side shiftings, lifting stay cord 44 between fixed pulley group 43 and running block 42 shortens, and promotes stay cord 44 and prepares for the lifting of hammer ram downwards.
Drive in the process of pulley yokes motion with traction enhancement stay cord 44 at lift cylinder 41, for fear of the swing of pulley yoke, the wild effect such as rock, can the movement locus of pulley yoke be limited.In specific embodiment, two supports are set on the backboard of box-girder, in the inboard of two supports, gathering sill is set respectively, pulley yoke is arranged on backboard and is in gathering sill and slides.Adopt this set-up mode, the pulley yoke of carrying movable pulley can move along projected path on the box-girder jib, the unstable action that can avoid running block 42 to produce at the volley, stably promote the extremely suitable height of hammer ram to carry out the strong rammer operation thereby lift cylinder 41 can drive lifting stay cord 44.Above-mentioned two supports can also be arranged on two side plates of box-girder, and make pulley yoke be on backboard and be in the gathering sill of two supports and slide.
Promote the stability of stay cord 44 in distraction procedure in order further to improve, can also on the backboard of jib, detent mechanism be set, for example near on the leading block position of joint arm detent mechanism is set, promote stay cord 44 and can pass detent mechanism, thereby keep promoting the movement locus of stay cord 44.
In the above-described embodiments, hoisting mechanism is arranged on the box-girder jib, sufficiently and reasonably utilized the arrangement space of box-girder, the compact overall structure of dynamic compaction machinery, lift cylinder 41 when carrying out the hammer ram enhancing action, promotes operating steadily of stay cord 44, and unbalance loading is impacted less, drive and promote stay cord 44 and promote with respect to the elevator of prior art, adopt the cost that oil cylinder and assembly pulley can the decrease hoisting mechanism.Hoisting mechanism adopts the combination of oil cylinder, assembly pulley and lifting stay cord 44, can realize that by designing dexterously the winding method of lifting stay cord 44 on running block 42 and fixed pulley group 43 hoisting mechanism has different operating efficiencies, for the enhanced feature of hoisting mechanism provides larger extending space, thereby meet the demands that promote working conditions more.
Need to prove, in order to adapt to the enhanced feature of hoisting mechanism under the different application occasion, one or more lift units can be set on jib, when promoting heavy weight hammer ram, can adopt a plurality of lift units to work simultaneously, the lifting stay cord 44 of a plurality of lift units all is connected with hammer ram, thereby larger lifting pulling force is provided, and carries out the requirement of enhancing action to meet hammer ram.For example, in the box-girder jib that more piece joint arm is formed by connecting, a plurality of lift units can be arranged side by side on same joint joint arm, for example two lift units are arranged side by side on the first joint joint arm, and perhaps a plurality of lift units can be arranged on different joint arms.
In this specific embodiment, the jib 2 of dynamic compaction machinery is formed by connecting by three joint joint arms, three joint joint arms are box-girder, it is respectively root joint arm 21, intermediate arm 22 and upper joint arm 23, two hoisting mechanisms are set on the jib of dynamic compaction machinery, wherein, in the first hoisting mechanism, lift cylinder 41, running block 42 and fixed pulley group 43 are installed on root joint arm 21, in the second hoisting mechanism, lift cylinder 41 and running block 42 are arranged on intermediate arm 22, and fixed pulley group 43 is arranged on joint arm 23.Hoisting mechanism adopts above-mentioned arrangement, the lifting stay cord 44 of two hoisting mechanisms is on the axis of jib substantially, the unbalance loading phenomenon that produces in the time of can avoiding working at the same time, and, above-mentioned arrangement has taken into full account the sectional dimension situation of more piece joint arm, take full advantage of the space of jib, its compact conformation, have good stability.
In above-mentioned lift structure, as shown in Figure 8, promote stay cord 44 and be wound on running block 42 and fixed pulley group 43, in specific embodiment, running block 42 comprises M movable pulley, fixed pulley group 43 comprises N fixed pulley, an end that promotes stay cord 44 is fixed, and will be promoted stay cord 44 and alternately be wound on fixed pulley and movable pulley, lifting stay cord 44 can all be wound around half-turn on fixed pulley and movable pulley, wherein, M=N or M=N+1.In actual applications, by being set, the winding method of lifting stay cord 44 on running block 42 and fixed pulley group 43 can realize that hoisting mechanism has different operating efficiencies, for the enhanced feature of hoisting mechanism provides larger extending space, thereby meet the demands that promote working conditions more.
In the dynamic compaction machinery that the embodiment of the present invention proposes, this dynamic compaction machinery can also comprise auxiliary portal frame, and jib 2 is connected with auxiliary portal frame, and auxiliary portal frame can support jib 2., by auxiliary portal frame is set, can be fit to the strong rammer operation of large-tonnage dynamic compaction machinery.
The above dynamic compaction machinery that the embodiment of the present invention is provided is described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (12)
1. a Novel heavy tamping machine, is characterized in that, comprising: car body, jib, amplitude oil cylinder, hoisting mechanism, hammer ram; The bottom of jib is hinged on car body, and amplitude oil cylinder one end is hinged on car body, and the other end and jib are hinged, and amplitude oil cylinder can drive jib and carry out the luffing action; The top that the lifting stay cord of hoisting mechanism strides across jib is connected with hammer ram, and hoisting mechanism can drive hammer ram and carry out enhancing action;
Hoisting mechanism comprises at least one lift unit that is arranged on jib, and described lift unit comprises lift cylinder, running block, fixed pulley group and lifting stay cord, and the lifting stay cord is wound on the fixed pulley group and is connected with running block and with hammer ram, is connected; Lift cylinder and fixed pulley group are installed on jib, and running block is between lift cylinder and fixed pulley group, and running block comprises pulley yoke and a plurality of movable pulley that are arranged on pulley yoke, and the piston rod of lift cylinder is connected with pulley yoke.
2. Novel heavy tamping machine according to claim 1, is characterized in that, jib is formed by connecting by more piece joint arm, and every joint joint arm is all truss-type cantilever crane.
3. Novel heavy tamping machine according to claim 1, is characterized in that, jib is formed by connecting by more piece joint arm, and every joint joint arm is all box-girder.
4. Novel heavy tamping machine according to claim 1, is characterized in that, jib is made by metal material or nonmetals.
5. Novel heavy tamping machine according to claim 4, is characterized in that, described metal material is steel and aluminium alloys, and described nonmetals are carbon fiber.
6. according to claim 2 or 3 described Novel heavy tamping machines, it is characterized in that, the bottom of jib is hinged on car body by basic bearing pin, hinged and by tightening member, be fixed by connecting bearing pin between arbitrary neighborhood two joint joint arms, connect bearing pin and arrange with bearing pin is vertical substantially, two of arbitrary neighborhoods connect bearing pins and are distributed in the both sides of jib axis.
7. according to claim 2 or 3 described Novel heavy tamping machines, is characterized in that, in the end of joint arm, flange is set, the flange of adjacent two joint joint arms is fixedly connected with by tightening member, perhaps, by junction plate is set, tightening member is fixed on junction plate on adjacent two joint joint arms.
8. the described Novel heavy tamping machine of according to claim 1 to 5 any one, is characterized in that, jib is variable section structure, and jib integral body is the fish belly type.
9. according to claim 2 or 3 described Novel heavy tamping machines, is characterized in that, lift cylinder and fixed pulley group are arranged on same joint arm or different saving on arm.
10. Novel heavy tamping machine according to claim 3, is characterized in that, on the backboard of box-girder, bracing frame is set, and the fixed pulley group is arranged on bracing frame.
11. Novel heavy tamping machine according to claim 3, is characterized in that, two supports are set on the backboard of box-girder, in the inboard of two supports, gathering sill is set respectively, pulley yoke can slide in gathering sill.
12. Novel heavy tamping machine according to claim 1, is characterized in that, running block comprises a plurality of movable pulley, and the fixed pulley group comprises a plurality of fixed pulleys, promotes stay cord and alternately is wound on fixed pulley and movable pulley.
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| CN103306264B (en) * | 2013-07-05 | 2016-08-17 | 徐工集团工程机械股份有限公司 | A kind of dynamic compactor arm frame and dynamic compaction machinery |
| CN109629412A (en) * | 2019-01-10 | 2019-04-16 | 中铁工程机械研究设计院有限公司 | Intelligent bridge-checking vehicle |
| CN111101498B (en) * | 2019-12-19 | 2021-12-14 | 张云 | Automatic hooking device, automatic hooking method of dynamic compactor and dynamic compactor |
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