CN203007923U - Dynamic compaction machine - Google Patents
Dynamic compaction machine Download PDFInfo
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- CN203007923U CN203007923U CN201220622057.1U CN201220622057U CN203007923U CN 203007923 U CN203007923 U CN 203007923U CN 201220622057 U CN201220622057 U CN 201220622057U CN 203007923 U CN203007923 U CN 203007923U
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- jib
- joint arm
- dynamic compaction
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Abstract
The utility model provides a dynamic compaction machine. An arm rest is hinged at the front end of a vehicle body; one end of a jib lubbing pulling rope of a jib lubbing mechanism is fixed at the rear end of the vehicle body, the other end of the jib lubbing pulling rope of the jib lubbing mechanism is fixed on the arm rest, and the jib lubbing mechanism can drive the arm rest to perform jib lubbing actions; a lifting pulling rope of a lifting mechanism strides across a fixed pulley block at the top end of the arm rest and is fixedly connected with a pounder, and the lifting mechanism can drive the pounder to perform lifting actions; and the arm rest is formed by fixedly connecting a plurality of sections of sectional arms, and at least one section of sectional arm adopts a box-shaped structure surrounded by a plurality of boards. According to the dynamic compaction machine, the arm rest of the dynamic compaction machine adopts the box-shaped structure surrounded by the plurality of boards, the box-shaped structure is simple and easy to process and manufacture, and the arm rest is good in whole mechanical property, high in working reliability, compact in structure and convenient to transport.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of dynamic compaction machinery.
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 shock and vibration to ground, make the structural deterioration of foundation soil, the hole compression, soil body local liquefaction, and discharge pore water and gas by the crack, 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 the uniformity coefficient that energy can also improve 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 engineering is used.
As shown in Figure 1, Fig. 1 is the structural representation of a kind of typical dynamic compaction machinery in prior art.
With reference to Fig. 1, described dynamic compaction machinery comprises car body 1', truss arm 2', hammer ram 3', anti-hypsokinesis bar 4', jib lubbing mechanism 5' and hoisting mechanism 6'; Car body 1' comprises main platform 11', chassis 12' and creeper undercarriage 13', and main platform 11' is arranged on chassis 12' upward and can turns round action with respect to chassis 12', and the elevator of jib lubbing mechanism 5' and hoisting mechanism 6' is arranged on main platform 11'; On the top of truss arm 2', arm head 7' is set, the wire rope of jib lubbing mechanism 5' is connected with truss arm 2', and 2' carries out the angle adjustment that luffing moves to realize truss arm 2' by the driving truss arm; Fixed pulley 8' is set on arm head 7', and the wire rope of hoisting mechanism 6' strides across fixed pulley 8' and is connected with hammer ram 3', can drive then to discharge hammer ram to ram operation after hammer ram 3' rises to suitable height; The two ends of anti-hypsokinesis bar 4' are hinged on respectively on main platform 11' and truss arm 2', can prevent truss arm 2 when the strong rammer operation ' tumble backward, and the shaking phenomenon that can relax truss arm 2' when the strong rammer operation is to reduce the vibration of dynamic compaction machinery.When carrying out the strong rammer operation, above-mentioned truss arm 2' carries out luffing and revolution action, can satisfy the job area demand of dynamic compaction machinery.
In prior art, dynamic compaction machinery adopts the truss arm structure, and when the strong rammer operation, jib bears action of compressive stress, and the moment of flexure that acts on jib is very little, so common truss arm can satisfy the force request of strong rammer operation substantially; But truss arm generally adopts many steel-pipe weldings to form, and the solder joint on truss arm is more, makes the whole mechanics poor-performing of truss arm, and, the complex structure of truss arm, welding processing is inconvenient, is not easy to processing and fabricating, the having relatively high expectations of welding quality.
Therefore, how the jib of dynamic compaction machinery designed, made jib structure simple, be easy to processing and fabricating, the whole mechanical property of jib is good, and functional reliability is high, is those skilled in the art's technical issues that need to address.
The utility model content
The purpose of this utility model is to provide a kind of dynamic compaction machinery, and the jib of this dynamic compaction machinery simple in structure is easy to processing and fabricating, and the whole mechanical property of jib is good, and functional reliability is high.
The utility model provides a kind of dynamic compaction machinery, comprising: car body, jib, hammer ram, jib lubbing mechanism, hoisting mechanism; Described jib is hinged on the front end of described car body, and luffing stay cord one end of described jib lubbing mechanism is fixed on the rear end of car body, and its other end is fixed on described jib, and described jib lubbing mechanism can drive described jib and carry out the luffing action; The lifting stay cord of described hoisting mechanism strides across the fixed pulley group on described jib top and is fixedly connected with described hammer ram, and described hoisting mechanism can drive described hammer ram and carry out enhancing action; Described jib is formed by fixedly connecting by more piece joint arm, wherein, and the box structure of at least one joint joint arm for being surrounded by multi-sheets.
Preferably, described joint arm surrounds by four flat boards the box structure that cross section is rectangle, and perhaps, described joint arm surrounds by U-shaped sheet material and one flat plate the box structure that cross section is rectangle.
Preferably, arrange in box structure laterally and/or strengthen longitudinally gusset.
Preferably, described sheet material is steel plate, aluminium alloy plate or carbon fiber board.
Preferably, every joint of described jib saves the box structure that arm is all surrounded by multi-sheets.
Preferably, be bolted to connection between arbitrary neighborhood two joint joint arms.
Preferably, the end of described joint arm is provided with flange, and the flange of adjacent two joint joint arms is bolted to connection; Perhaps, hinged and be bolted to connection by horizontal bearing pin between adjacent two joint joint arms.
Preferably, described jib comprises root joint arm, at least one joint intermediate arm and upper joint arm, and the more piece intermediate arm is fixedly connected with in turn, and described intermediate arm is fixedly connected between described joint arm and described upper joint arm; The bottom of described joint arm is hinged on described car body by bearing pin, and the top of described upper joint arm is fixed with arm head, is provided with fixed pulley on described arm head, and described lifting stay cord strides across described fixed pulley and is fixedly connected with described hammer ram.
Preferably, described joint arm is the variable cross-section box structure, and the cross section of described joint arm reduces from top to bottom successively, and/or described upper joint arm is the variable cross-section box structure, and the cross section of described upper joint arm reduces from top to bottom successively.
Preferably, be provided with anti-back inclining mechanism between described car body and described jib, described anti-back inclining mechanism is loop bar or the hydraulic jack that is provided with spring.
With respect to truss arm of the prior art mechanism, in the utility model, the jib of dynamic compaction machinery is formed by fixedly connecting by more piece joint arm, and at least one joint joint arm surrounds box structure by multi-sheets.The jib of dynamic compaction machinery adopts box structure, box structure simple in structure, and processing and fabricating is convenient; When carrying out the strong rammer operation, the joint arm only bears pressure-acting and there is no moment of flexure, and in box structure, the junction of multi-sheets is stressed less, and the whole mechanical property of jib is good, can satisfy the force request of dynamic compaction machinery when the strong rammer operation, and functional reliability is high.
In a preferred embodiment, in the jib of dynamic compaction machinery, every joint joint arm all surrounds box structure by multi-sheets, is bolted to connection between adjacent two joint joint arms.The whole jib of dynamic compaction machinery is box structure, makes the stressed of whole jib evenly improve the functional reliability of jib, and is bolted to connection between joint arm and joint arm, is convenient to making, installation and the transportation of jib.
Description of drawings
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 dynamic compaction machinery that the utility model proposes.
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 arranges the joint arm schematic cross-section of strengthening gusset in Fig. 2 dynamic compaction machinery.
Description of reference numerals in Fig. 1:
Car body 1', main platform 11', chassis 12', creeper undercarriage 13', truss arm 2', hammer ram 3', anti-hypsokinesis bar 4', jib lubbing mechanism 5' and hoisting mechanism 6', arm head 7', fixed pulley 8'.
Description of reference numerals in Fig. 2 to Fig. 6:
The specific embodiment
In order to make those skilled in the art person understand better the technical solution of the utility model, the utility model 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 dynamic compaction machinery that the utility model proposes.
With reference to Fig. 2, a kind of dynamic compaction machinery that the utility model embodiment provides comprises: car body 1, jib 2, hammer ram 3, anti-back inclining mechanism 4, jib lubbing mechanism 5, lift structure 6.Jib 2 is hinged on by bearing pin on the front end of car body 1, and luffing stay cord one end of jib lubbing mechanism 5 is fixed on the rear end of car body, and its other end is fixed on jib 2, and jib lubbing mechanism 5 can drive jib 2 and carry out the luffing action; The lifting stay cord of lift structure 6 strides across the fixed pulley on jib 2 tops and is fixedly connected with hammer ram 3, and lift structure 6 can drive hammer ram 3 and carry out enhancing action; Be provided with arm head 7 on the top of jib 2, fixed pulley 8 is arranged on arm head 7, the luffing stay cord of jib lubbing mechanism 5 is fixedly connected with arm head 7, the elevator of jib lubbing mechanism 5 drives the luffing stay cord and carries out the luffing action to drive jib 2, the adjustment of realization to jib 2 angles, the lifting stay cord of lift structure 6 strides across fixed pulley 8 and is fixedly connected with hammer ram 3, and the elevator of lift structure 6 drives the lifting stay cord and carries out enhancing action to drive hammer ram 3, discharges hammer ram 3 to carry out the strong rammer action when hammer ram 3 is promoted to certain altitude.One end of anti-back inclining mechanism 4 is hinged on car body 1, and the other end is hinged on jib 2, and the shaking phenomenon that anti-back inclining mechanism 4 can relax jib 2 when the strong rammer operation to be reducing the vibration of dynamic compaction machinery, and can prevent that jib 2 from significantly rocking backward and tumble.
In above-mentioned dynamic compaction machinery, jib 2 is formed by fixedly connecting by more piece joint arm, and wherein, at least one joint joint arm can surround box structure by multi-sheets.Concrete, sheet material can be high-strength plate materials such as steel plate, aluminium alloy plate, carbon fiber board etc., plurality of steel plates can surround box structure by welding manner, the polylith aluminium alloy plate can surround box structure by bonding way, bolt fixed mode, and the cross section of box structure can be rectangle, circle, ellipse etc.With respect to truss arm of the prior art mechanism, in the utility model, the jib 2 of dynamic compaction machinery adopts box structures, box structure simple in structure, and processing and fabricating is convenient; When carrying out the strong rammer operation, the joint arm only bears pressure-acting and there is no moment of flexure, and in box structure, the junction of multi-sheets is stressed less like this, and the whole mechanical property of jib 2 is good, can satisfy the force request of dynamic compaction machinery when the strong rammer operation, and functional reliability is high.
In a kind of specific embodiment, the joint arm is welded into by four block plates the box structure that cross section is rectangle; Box structure 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; When carrying out the strong rammer operation, in box structure, weld seam is stressed less, and the whole mechanical property of joint arm is good, and functional reliability is high.
In welding process, can adopt different arrangement forms to four block plates.As shown in Figure 3 and Figure 4, four block plates 201 adopt the I shape arrangement in Fig. 3, and four block plates 201 adopt H type arrangement in Fig. 4.
In another kind of specific embodiment, as shown in Figure 5, the joint arm is welded into by U-shaped steel plate 202 and steel plate 201 box structure that cross section is rectangle; U-shaped steel plate 202 has three sides, adopt U-shaped steel plate 202 and a block plate 201 can surround the box structure that cross section is rectangle, form two weld seams when welding, the box structure that surrounds with respect to four block plates, reduced the quantity of weld seam, the operating procedure that can reduce to weld like this, convenient processing and fabricating, and, whole joint arm adopts U-shaped steel plate 202 and a block plate 201, reduced the quantity of steel plate and the quantity of weld seam, can be better the whole mechanical property that improves the joint arm, make the strong rammer job stabilization stronger.
In the above-described embodiments, the joint arm forms box structure by the plurality of steel plates welding, in order further to improve the whole mechanical property of joint arm, can also arrange laterally and/or strengthen longitudinally gusset 203 in box structure, as shown in Figure 6, multi-sheets is connected as a whole by strengthening gusset 203; When the joint arm bears pressure, strengthen the whole mechanical property that gusset 203 can improve whole joint arm, and the pressure that acts on the joint arm can transmit by strengthening gusset 203, 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 structure joint arm.
In the utility model, the jib 2 of dynamic compaction machinery is set to more piece joint arm, more piece joint arm is formed by fixedly connecting, like this, and according to the needs of application scenarios, can select the joint number of joint arm in jib 2 and the length of every joint joint arm, thereby the length that makes whole jib 2 reaches the requirement of practical application, and jib 2 comprises that more piece joint arm is formed by fixedly connecting, be convenient to save the processing and fabricating of arm, and the assembling of whole jib 2 and transportation.
With reference to Fig. 2, in the present embodiment, the jib 2 of dynamic compaction machinery is formed by fixedly connecting by four joint joint arms, be respectively root joint arm 21, two joint intermediate arm 22 and upper joint arms 23, intermediate arm 22 is fixedly connected between root joint arm 21 and upper joint arm 23, the bottom of root joint arm 21 is hinged on car body 1 by bearing pin, and anti-back inclining mechanism 4 is hinged on root joint arm 21, and arm head 7 is fixed on the top of joint arm 23; Wherein, root joint arm 21, two joint intermediate arms 22 and upper joint arm 23 all surround box structure by multi-sheets.In jib 2 four joint joint arm all surrounds box structure by multi-sheets, and like this, whole jib 2 all has box structure from top to bottom, and each joint saves the stressed better of arm, thereby has further improved the whole mechanical property of jib 2.
In the more piece joint arm of jib 2, be bolted to connection between adjacent two joint joint arms, concrete, be bolted to connection between two joint intermediate arms 22, root joint arm 21 is bolted to connection with the intermediate arm 22 that is positioned at the below, and upper joint arm 23 is bolted to connection with the intermediate arm 22 that is positioned at the top.Be bolted to connection between more piece joint arm, bolted 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, each joint joint arm forms by four block plate welding the box structure that cross section is rectangle, top at root joint arm 21, the bottom of the two ends of intermediate arm 22 and upper joint arm 23 all arranges flange, bolt hole is set on flange, bolt passes the bolt hole of root joint arm 21 and intermediate arm 22 upper flanges and fixes by nut screwing clamping, realized being fixedly connected with between root joint arm 21 and intermediate arm 22, bolt passes the bolt hole of two joint intermediate arm 22 upper flanges and fixes by nut screwing clamping, can realize being fixedly connected with of two joint intermediate arms 22, bolt passes the bolt hole of intermediate arm 22 and upper joint arm 23 upper flanges and fixes by nut screwing clamping, can realize being fixedly connected with of intermediate arm 22 and upper joint arm 23.
In another kind of specific embodiment, form circumferential flange in the end of joint arm, the flange of adjacent two joint joint arms is bolted to connection; For example, each joint joint arm forms by four block plate welding the box structure that cross section is rectangle, every block plate stretches out and is bent to form circumferential flange, bolt hole is set on flange, bolt passes the flange upper bolt hole of adjacent connecting joint arm and fixes by nut screwing clamping, has realized being fixedly connected with of adjacent connecting joint arm.
Need to prove, above-mentioned mode with bolts can realize being fixedly connected with of adjacent two joint joint arms, in actual application, can also adopt pipe clamp with mounting flange or flange, and other dismountable fixed forms can be applied to this equally; Certainly, can also adopt bonding mode to realize adjacent two joint being fixedly connected with of arms, for example, when adopting aluminum alloy plate materials to surround box structure, can adopt bonding mode that flange or the flange of box structure end are fixed.
Should be appreciated that, when jib 2 is formed by fixedly connecting by more piece joint arm, be not limited to single flange or flange mode, the mode that can also adopt flange and flange to make up is fixedly connected with to realize that adjacent two joints save between arms.
In a preferred embodiment, can also be hinged by horizontal bearing pin between adjacent two joint joint arms, like this, can rotate around this horizontal bearing pin between adjacent two joint joint arms, then by bolt, it is fixed to limit its rotation, thereby adjacent two joint joint arms are fixed up.Particularly, adopt bolt to fix and to adopt above-mentioned two embodiment, also junction plate can be set, junction plate is tiled in the junction of adjacent two joint joint arms, and respectively junction plate is fixed on adjacent two joint joint arms by bolt, realized being fixedly connected with of adjacent two joint joint arms.
In this embodiment, the jib 2 of dynamic compaction machinery is formed by fixedly connecting by more piece joint arm, according to the force request of strong rammer operation, can carry out the concrete structure design to the box structure of each joint joint arm.
In Fig. 2, according to the force request of strong rammer operation, design root joint arm 21 and upper joint arm 23 are the variable cross-section box structure, and the cross section of root joint arm 21 reduces from top to bottom successively, the cross section of upper joint arm 23 reduces from top to bottom successively, and intermediate arm 22 is the uniform section box structure.
The jib 2 of dynamic compaction machinery is formed by fixedly connecting by root joint arm 21, two joint intermediate arms 22 and upper joint arm 23, and every joint joint arm all forms by four block plate welding the box structure that cross section is rectangle, wherein:
Design by above-mentioned concrete structure to root joint arm 21, intermediate arm 22 and upper joint arm 23, can satisfy the whole mechanical property of jib 2, reduce taking up room of root joint arm 21 and upper joint arm 23, alleviate the weight of whole jib 2 and the consumption of steel plate.Certainly, according to the force request of jib, can design intermediate arm 22 and be the variable cross-section box structure, namely the cross section, middle part of intermediate arm 22 is less than the cross section of two ends, and it can satisfy the mechanical property under concrete operating mode.
In Fig. 2, an end of anti-back inclining mechanism 4 is hinged on car body 1, and the other end is hinged on root joint arm 21; For the ease of installing, can save on arm 21 at root mount pad is set, will prevent that back inclining mechanism 4 is hingedly mounted on mount pad.
In above-mentioned dynamic compaction machinery, jib 2 is hinged on car body 1, and jib 2 can carry out the luffing motion with respect to car body 1 under the effect of jib lubbing mechanism 5; During the strong rammer operation, under the effect of lift structure 6, hammer ram 3 is promoted to certain altitude and then discharges, and hammer ram 3 falls and ground is rammed; In this strong rammer process, the gravity moment that acts on hammer ram 3 on jib 2 when hammer ram 3 discharges cancels, and in order to keep the stress balance of jib 2, jib 2 can produce shaking phenomenon, be hinged on car body 1 based on jib 2, the amplitude of fluctuation of jib 2 on the luffing direction of motion is larger; Therefore, anti-back inclining mechanism 4 is set on dynamic compaction machinery, the two ends of anti-back inclining mechanism 4 are hinged on root joint arm 21 and car body 1, anti-back inclining mechanism 4 can relax the shaking phenomenon of jib 2 when the strong rammer operation, anti-back inclining mechanism 4 can reduce the vibration of dynamic compaction machinery, tumbles backward when anti-back inclining mechanism 4 can avoid jib 2 significantly to rock.
Concrete, the structure of anti-back inclining mechanism 4 has various ways, and for example, anti-back inclining mechanism 4 can be for being provided with the loop bar of spring, and loop bar comprises the first pull bar and the second pull bar, and the first pull bar and the second pull bar suit and between arrange spring; When jib 2 rocks, elastic deformation effect by spring, two pull bars can move along axis direction, thereby control jib 2 at the Oscillation Amplitude of luffing direction, to play the effect that reduces jib 2 vibrations, and, can play the effect that prevents that jib 2 from tumbling backward, improve the safety of strong rammer operation.
Above-mentioned anti-back inclining mechanism 4 can be hydraulic jack, and the two ends of hydraulic jack are hinged on respectively on car body 1 and Gen Jie arm 21; When jib 2 rocks, hydraulic jack oil-feed or overflow, thus control jib 2 at the Oscillation Amplitude of luffing direction, to play the effect of vibration damping and anti-hypsokinesis.
By the description to anti-back inclining mechanism 4 duties, when the strong rammer operation, loop bar or oil cylinder can produce active forces to jib 2, by being applied to active force on jib 2 to play the effect of vibration damping and anti-hypsokinesis; Therefore, when root joint arm 21 is carried out structure design, can strengthen root joint arm 21 in the position of mount pad, for example, inboard and/or the outside position corresponding with mount pad of root joint arm 21 box structures arranges strengthens gusset 203, strengthen by strengthening 203 pairs of root joint arms 21 of gusset, to avoid violent oscillatory motion on the impact of root joint arm 21 structures.
In the dynamic compaction machinery that the utility model embodiment 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 utility model embodiment is provided is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a dynamic compaction machinery, comprising: car body, jib, hammer ram, jib lubbing mechanism, hoisting mechanism; Described jib is hinged on the front end of described car body, and luffing stay cord one end of described jib lubbing mechanism is fixed on the rear end of car body, and its other end is fixed on described jib, and described jib lubbing mechanism can drive described jib and carry out the luffing action; The lifting stay cord of described hoisting mechanism strides across the top of described jib and is fixedly connected with described hammer ram, and described hoisting mechanism can drive described hammer ram and carry out enhancing action; It is characterized in that, described jib is formed by fixedly connecting by more piece joint arm, wherein, and the box structure of at least one joint joint arm for being surrounded by multi-sheets.
2. dynamic compaction machinery according to claim 1, is characterized in that, described joint arm surrounds by four flat boards the box structure that cross section is rectangle, and perhaps, described joint arm surrounds by U-shaped sheet material and one flat plate the box structure that cross section is rectangle.
3. dynamic compaction machinery according to claim 2, is characterized in that, arranges in box structure laterally and/or strengthen longitudinally gusset.
4. according to claim 1-3 described dynamic compaction machineries of any one, is characterized in that, described sheet material is steel plate, aluminium alloy plate or carbon fiber board.
5. according to claim 1-3 described dynamic compaction machineries of any one, is characterized in that, the box structure that every joint joint arm of described jib is all surrounded by multi-sheets.
6. dynamic compaction machinery according to claim 5, is characterized in that, is bolted to connection between arbitrary neighborhood two joint joint arms.
7. dynamic compaction machinery according to claim 6, is characterized in that, the end of described joint arm is provided with flange, and the flange of adjacent two joint joint arms is bolted to connection; Perhaps, hinged and be bolted to connection by horizontal bearing pin between adjacent two joint joint arms.
8. dynamic compaction machinery according to claim 5, is characterized in that, described jib comprises root joint arm, at least one joint intermediate arm and upper joint arm, and the more piece intermediate arm is fixedly connected with in turn, and described intermediate arm is fixedly connected between described joint arm and described upper joint arm; The bottom of described joint arm is hinged on described car body by bearing pin, and the top of described upper joint arm is fixed with arm head, is provided with fixed pulley on described arm head, and described lifting stay cord strides across described fixed pulley and is fixedly connected with described hammer ram.
9. dynamic compaction machinery according to claim 8, is characterized in that, described joint arm is the variable cross-section box structure, the cross section of described joint arm reduces from top to bottom successively, and/or described upper joint arm is the variable cross-section box structure, and the cross section of described upper joint arm reduces from top to bottom successively.
10. dynamic compaction machinery according to claim 5, is characterized in that, is provided with anti-back inclining mechanism between described car body and described jib, and described anti-back inclining mechanism is loop bar or the hydraulic jack that is provided with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220622057.1U CN203007923U (en) | 2012-11-22 | 2012-11-22 | Dynamic compaction machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220622057.1U CN203007923U (en) | 2012-11-22 | 2012-11-22 | Dynamic compaction machine |
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| CN203007923U true CN203007923U (en) | 2013-06-19 |
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| CN201220622057.1U Expired - Lifetime CN203007923U (en) | 2012-11-22 | 2012-11-22 | Dynamic compaction machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306264A (en) * | 2013-07-05 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Dynamic compactor boom and dynamic compactor |
| CN103526740A (en) * | 2013-10-24 | 2014-01-22 | 徐工集团工程机械股份有限公司 | System and method for back-lean preventing control of dynamic compaction machine |
-
2012
- 2012-11-22 CN CN201220622057.1U patent/CN203007923U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306264A (en) * | 2013-07-05 | 2013-09-18 | 徐工集团工程机械股份有限公司 | Dynamic compactor boom and dynamic compactor |
| 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 |
| CN103526740A (en) * | 2013-10-24 | 2014-01-22 | 徐工集团工程机械股份有限公司 | System and method for back-lean preventing control of dynamic compaction machine |
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