CN101725094A - Tamping device adopting hydraulic direct shock excitation - Google Patents
Tamping device adopting hydraulic direct shock excitation Download PDFInfo
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- CN101725094A CN101725094A CN201010104678A CN201010104678A CN101725094A CN 101725094 A CN101725094 A CN 101725094A CN 201010104678 A CN201010104678 A CN 201010104678A CN 201010104678 A CN201010104678 A CN 201010104678A CN 101725094 A CN101725094 A CN 101725094A
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- 230000005284 excitation Effects 0.000 title claims abstract description 9
- 230000035939 shock Effects 0.000 title claims abstract description 9
- 230000033001 locomotion Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 4
- 238000010977 unit operation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The invention discloses a tamping device adopting hydraulic direct shock excitation, adapting to load and comprising a tamping box body and tamping heads oppositely installed on both sides of the tamping box body, wherein the tamping heads on each side are matched in pairs, and each pair of tamping heads contains an inner tamping head and an outer tamping head; a piston rod of the clamping hydraulic cylinder of each tamping head is articulated with the tamping box body, the tamping arm of each tamping head comprises an upper tamping arm, a lower tamping arm and a shock-exciting hydraulic cylinder, and the upper tamping arms are articulated with the cylinder bodies of the clamping hydraulic cylinders; the clamping hydraulic cylinders of the inner tamping head and the outer tamping head in each pair of tamping heads are arranged between the upper tamping arms of the inner tamping head and the outer tamping head; the lower tamping arms are articulated with a support shaft fixed on the tamping box body, and the support shaft is perpendicular to the sides of the tamping box body; the piston rods of the shock-exciting hydraulic cylinders are fixed to the lower ends of the upper tamping arms, and the cylinder bodies of the shock-exciting hydraulic cylinders are fixed to the upper ends of the lower tamping arms, or the cylinder bodies of the shock-exciting hydraulic cylinders are fixed to the lower ends of the upper tamping arms, and the piston rods of the shock-exciting hydraulic cylinders are fixed to the upper ends of the lower tamping arms; and the lower ends of the lower tamping arms are fixedly provided with tamping picks.
Description
Technical field
The present invention relates to railway tamping unit technical field, relate in particular to a kind of tamping unit that adopts hydraulic direct shock excitation.
Background technology
Tamping unit is a kind of road maintainance machinery that the railroad track ballast is made firm by ramming that is exclusively used in.Compare with conventional electric tamping tool and light hydraulic tamping machine operation, tamping unit have tamping operation safety, stable, fast, many advantages such as labour intensity is low.At present, tamping unit has been realized form of structure variation, exciting mode uniquenessization, the operating efficiency high efficiency, and be applied to widely in the domestic maintenance of way operation, showed special advantages.Along with greatly developing and social progress of railway construction in China, tamping unit will inevitably become main flow.
The operating feature of tamping unit requires tamping unit must realize the clamping of tamping pickaxe and the vibration of self.At present, though international tamping unit form of structure is various, according to the implementation of these two actions, holding action mainly relies on the flexible realization of clamping hydraulic cylinder, and the motion that mode of vibration mainly relies on the rotation of eccentric shaft to drive the tamping arm generation cycle realizes.And eccentric shaft rotation exciting tamping pickaxe is a kind of mechanical forced vibration, and the railway ballast acts on the power real-time change on the tamping pickaxe as a kind of special load, and the mechanical forced vibration can reduce the life-span of tamping head, and is unfavorable for the rearranging with closely knit of ballast aggregate particle.
Summary of the invention
In order to satisfy the tamping unit mode of vibration, the object of the present invention is to provide tamping unit a kind of and the employing hydraulic direct shock excitation that load adapts to the requirement that ballast adapts to.
The technical scheme that technical solution problem of the present invention adopts is: the tamping unit of this employing hydraulic direct shock excitation, comprise and make casing, the opposed tamping head of making firm by ramming on the casing two sides that is installed in firm by ramming, the tamping head of making firm by ramming on described each side of casing mates in pairs, and every pair of tamping head comprises an interior tamping head and an outer tamping head; The piston rod of the clamping hydraulic cylinder of described each tamping head is with to make casing firm by ramming hinged, and wherein, the tamping arm of described each tamping head comprises tamping arm, time tamping arm and exciting hydraulic cylinder, and the cylinder body of last tamping arm and clamping hydraulic cylinder is hinged; In every pair of tamping head, in the clamping hydraulic cylinder of interior tamping head and the clamping hydraulic cylinder of outer tamping head place between the last tamping arm of the last tamping arm of tamping head and outer tamping head; Following tamping arm is with to be fixed on the back shaft of making firm by ramming on the casing hinged, this back shaft and the described lateral vertical of making casing firm by ramming; The piston rod of exciting hydraulic cylinder and the lower end of last tamping arm is fixedly connected and the upper end of the cylinder body of exciting hydraulic cylinder and following tamping arm is fixedly connected, perhaps the lower end of the cylinder body of exciting hydraulic cylinder and last tamping arm is fixedly connected and the piston rod of exciting hydraulic cylinder and the upper end of following tamping arm are fixedly connected; The lower end of following tamping arm is fixed with tamping pickaxe.
Further, exciting hydraulic cylinder of the present invention is two rod hydraulic cylinders; The two ends of the piston rod of this pair rod hydraulic cylinder and the lower end of last tamping arm is fixedly connected and the upper end of the cylinder body of two rod hydraulic cylinders and following tamping arm is fixedly connected, perhaps the lower end of the cylinder body of two rod hydraulic cylinders and last tamping arm is fixedly connected and the two ends of the piston rod of two rod hydraulic cylinders and the upper end of following tamping arm are fixedly connected.
Further, the exciting hydraulic cylinder of the present invention structure that is the reverse mounted in pairs of plunger case; Two plunger rods of this exciting hydraulic cylinder are fixedly connected with the lower end of last tamping arm respectively and the upper end of the cylinder body of exciting hydraulic cylinder and following tamping arm is fixedly connected, and perhaps the lower end of the cylinder body of this exciting hydraulic cylinder and last tamping arm is fixedly connected and two plunger rods of exciting hydraulic cylinder are fixedly connected with the upper end of following tamping arm respectively.
Compared with prior art, the beneficial effect that has of the present invention is:
(1) exciting mode of tamping unit has utilized the adaptive load advantage of hydraulic pressure itself, according to the situation of ballast, regulates the left and right sides amplitude of oscillation of tamping pickaxe, helps the position adjustment of ballast and rearranges, and has also improved the life-span of tamping pickaxe.
(2) adopt exciting hydraulic cylinder two cavity pressure high frequencies alternately to change and realize that tamping pickaxe swings,, change the control that the high-low pressure alternating frequency can be realized vibration frequency so the frequency of tamping pickaxe depends on the frequency that pressure alternately changes.
Description of drawings
Fig. 1 concerns schematic diagram for the structure of tamping unit of the present invention and with the installation of making dolly firm by ramming;
Fig. 2 is the view before the tamping unit operation of the present invention;
The view of Fig. 3 during for tamping unit operation of the present invention;
Fig. 4 is the overall structure schematic diagram of the tamping arm of interior tamping head;
Fig. 5 is the amplification cross-sectional schematic of A part among Fig. 4;
Fig. 6 is the fundamental diagram of the tamping arm of interior tamping head;
Fig. 7 is the schematic diagram of exciting hydraulic cylinder of the structure of the reverse mounted in pairs of plunger case, wherein, (a) is the fundamental diagram of plunger case; (b) be the scheme of installation of this exciting hydraulic cylinder.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 to Fig. 6 shows an embodiment of the invention, and the exciting hydraulic cylinder is two rod hydraulic cylinders.
As shown in Figure 1, tamping unit of the present invention is fixed on the framework 17 of making dolly 15 firm by ramming.Tamping unit comprise one can realize down inserting motion make casing 16, the opposed interior tamping head and the outer tamping head of making firm by ramming on 16 two sides of casing that be installed in firm by ramming.The following slotting motion of making casing 16 firm by ramming is realized by the lifting hydraulic cylinder 1 of making firm by ramming on the dolly 15.To occur reversing and deflection in order preventing to make firm by ramming in 16 times slotting processes of casing, to make firm by ramming on the framework 17 of dolly two vertically-guided posts 2 are housed, these two leads 2 have also ensured the following slotting degree of depth of making casing 16 firm by ramming.The tamping arm of interior tamping head comprises tamping arm 6, following tamping arm 9, two rod hydraulic cylinder 7, the cylinder body of the upper end of last tamping arm 6 and clamping hydraulic cylinder 4 is hinged, following tamping arm 9 is with to be fixed on the back shaft 10 of making firm by ramming on the casing 16 hinged, this back shaft 10 and the lateral vertical of making casing firm by ramming make down tamping arm 9 be parallel to the plane rocking of making casing 16 sides firm by ramming around its back shaft 10.The tamping arm of outer tamping head comprises tamping arm 5, following tamping arm 8, two rod hydraulic cylinder 7, the cylinder body of the upper end of last tamping arm 5 and clamping hydraulic cylinder 3 is hinged, following tamping arm 8 is with to be fixed on the back shaft 14 of making firm by ramming on the casing 16 hinged, this back shaft 14 and the lateral vertical of making casing firm by ramming make down tamping arm 8 be parallel to the plane rocking of making casing 16 sides firm by ramming around its back shaft 14.
The tamping head of making firm by ramming on casing 16 each side mates in pairs.In the tamping unit shown in Figure 1, each side is equipped with two pairs of tamping heads, and every pair of tamping head comprises an interior tamping head and an outer tamping head.The piston rod of the piston rod of the clamping hydraulic cylinder 4 of interior tamping head, the clamping hydraulic cylinder 3 of outer tamping head is respectively with to make casing 16 firm by ramming hinged.In every pair of tamping head, in the clamping hydraulic cylinder 4 of interior tamping head and the clamping hydraulic cylinder 3 of outer tamping head place between the last tamping arm 5 of the last tamping arm 6 of tamping head and outer tamping head.During tamping operation, every pair of tamping head cooperates finishes a holding action, when the piston rod of the clamping hydraulic cylinder 4 of the piston rod of the clamping hydraulic cylinder 3 of outer tamping head and interior tamping head stretches out simultaneously, the tamping arm of outer tamping head is with respect to its back shaft 14 counter-clockwise swings, the tamping arm of interior tamping head is swung clockwise with respect to its back shaft 10, tamping pickaxe 11 relative clampings; Otherwise when the piston rod of the clamping hydraulic cylinder 4 of the piston rod of the clamping hydraulic cylinder 3 of outer tamping head and interior tamping head was regained simultaneously, tamping pickaxe 11 opened relatively.
Fig. 2 is the schematic diagram before the tamping unit operation.Lifting hydraulic cylinder 1 will be made casing 16 firm by ramming and be lifted this moment, and tamping pickaxe 11, when tamping head was with outer tamping head centre in promptly sleeper 13 was in, puts down and makes casing 16 firm by ramming when treating that tamping car 15 drives to the operating position apart from rail 12 certain altitudes.
Schematic diagram when Fig. 3 is the tamping unit operation.At this moment, utilize lifting hydraulic cylinder 1 to fall and make casing 16 firm by ramming, make tamping pickaxe 11 insert ballast aggregate, the clamping hydraulic cylinder 4 of interior tamping head and the clamping hydraulic cylinder 3 of outer tamping head make the relative opening and closing of tamping arm of outer tamping head and interior tamping head, the reciprocating motion of two rod hydraulic cylinder 7 cylinder bodies realizes the small size vibration of tamping pickaxe 11, the synthetic tamping ballast aggregate of two kinds of motions.After tamping arm is finished certain opening and closing number of times, lifting hydraulic cylinder 1 will be made casing 16 firm by ramming and be lifted, and enter down in a pair of adjacent sleeper 13 operations.
Fig. 4-Fig. 7 is an example with the tamping arm of interior tamping head all, the tamping arm of the structure of the tamping arm of outer tamping head and connecting mode and interior tamping head identical.
As shown in Figure 4 and Figure 5, in the tamping arm of interior tamping head, last tamping arm 6 lower ends are fixing by flange 18 with the piston rod of two rod hydraulic cylinders 7, fixedly connected by screw 26 with the cylinder body of two rod hydraulic cylinders 7 in the upper end of following tamping arm 9, the convex shoulder at the cylinder body two ends of two rod hydraulic cylinders 7 prevents down the axial float of tamping arm 9 relative cylinder bodies.
During installation, to descend the cylinder barrel of tamping arm 9 upper ends, two rod hydraulic cylinders 7, cylinder body external member 25 to be fixedly connected with screw 24, load onto the piston rod that has overlapped sealing ring 27, again fairlead 23, sealing ring 22, dust ring 21, end cap 20 are fixedly connected by screw 19 with cylinder body, with screw 26 flange 18, piston rod and last tamping arm 6 are fixedly connected at last.
The structure of the tamping arm of interior tamping head also can be: go up tamping arm 6 lower ends and fix with the cylinder body of two rod hydraulic cylinders 7, (not shown) is fixedlyed connected in the upper end of following tamping arm 9 with the piston rod of pair rod hydraulic cylinders 7.
As shown in Figure 6, the implementation of tamping pickaxe 11 vibrations is as follows: a clip position getting clamping hydraulic cylinder 4 illustrates, when supposing among the figure position, because the pressure effect of 4 liang of chamber hydraulic oil of clamping hydraulic cylinder, hydraulic cylinder 4 cylinder barrels and piston rod relative position are constant, clamping hydraulic cylinder 4 can be regarded as a rigid body.When the logical hydraulic oil in a chamber of two rod hydraulic cylinders 7, when the b chamber leads to low pressure oil, the cylinder body of two rod hydraulic cylinders 7 is under the effect of hydraulic oil, move to right with respect to piston rod, following tamping arm 9 can be swung clockwise around back shaft 10, last tamping arm 6 has corresponding swing clockwise under the constraint of clamping hydraulic cylinder 4, thereby adjusts clamping hydraulic cylinder 4, goes up tamping arm 6, the relative position of tamping arm 9 down, has realized the left pendular motion of tamping pickaxe 11; Otherwise, the a chamber leads to low pressure oil, when the b chamber leads to hydraulic oil, two rod hydraulic cylinder 7 cylinder bodies are under the hydraulic oil effect, move to left with respect to piston rod, following tamping arm 9 can be around back shaft 10 counter-clockwise swings, and last tamping arm 6 has corresponding counter-clockwise swing, thereby adjust the relative position of clamping hydraulic cylinder 4, last tamping arm 6, following tamping arm 9, realize the right pendular motion of tamping pickaxe 11.So, when the high frequency of two chamber high-low pressures replaced, tamping pickaxe 11 just had the small size side-to-side vibrations of high frequency.
Figure 7 shows that the another kind of embodiment of exciting hydraulic cylinder of the present invention, the exciting hydraulic cylinder is the structure of the reverse mounted in pairs of plunger case.The connecting mode of this exciting hydraulic cylinder such as Fig. 7 (b) are depicted as: two plunger rods of plunger case 28 and the lower end of last tamping arm 6 are fixedly connected, and cylinder body is fixedly connected with the upper end of following tamping arm 9.
The implementation of tamping pickaxe vibration is as follows: shown in Fig. 7 (a), a ' the chamber of plunger case 28 leads to hydraulic oil, when b ' chamber leads to low pressure oil, two relative cylinder bodies of plunger rod of plunger case 28 move to right, last tamping arm 6 has counterclockwise small size swing under the constraint of clamping hydraulic cylinder 4, the relative plunger rod of the cylinder body of plunger case 28 moves to left, and the counterclockwise small size swing around back shaft 10 is arranged, thereby the relative position of tamping arm 6, following tamping arm 9, clamping hydraulic cylinder 4 in the adjustment, the right pendular motion of realization tamping pickaxe 11; Otherwise, a ' the chamber of plunger case 28 leads to low pressure oil, when b ' chamber leads to hydraulic oil, two relative cylinder bodies of plunger rod of plunger case 28 move to left, and last tamping arm 6 has clockwise small size swing under the constraint of clamping hydraulic cylinder 4, and the relative plunger rod of the cylinder body of plunger case 28 moves to right, clockwise small size swing around back shaft 10 is arranged, thereby the relative position of tamping arm 6, following tamping arm 9, clamping hydraulic cylinder 4 in the adjustment, the dither of tamping pickaxe 11 alternately appears realizing in the left pendular motion of realization tamping pickaxe 11, high-low pressure.
The connecting mode of exciting hydraulic cylinder and last tamping arm 6 and following tamping arm 9 also can be: two plunger rods of plunger case 28 and the upper end of following tamping arm 9 are fixedly connected, the lower end of cylinder body and last tamping arm 6 (not shown) that is fixedly connected.
Claims (3)
1. tamping unit that adopts hydraulic direct shock excitation, comprise and make casing, the opposed tamping head of making firm by ramming on the casing two sides that is installed in firm by ramming, the tamping head of making firm by ramming on described each side of casing mates in pairs, and every pair of tamping head comprises an interior tamping head and an outer tamping head; The piston rod of the clamping hydraulic cylinder of described each tamping head is with to make casing firm by ramming hinged, and it is characterized in that: the tamping arm of described each tamping head comprises tamping arm, time tamping arm and exciting hydraulic cylinder, and the cylinder body of last tamping arm and clamping hydraulic cylinder is hinged; In every pair of tamping head, in the clamping hydraulic cylinder of interior tamping head and the clamping hydraulic cylinder of outer tamping head place between the last tamping arm of the last tamping arm of tamping head and outer tamping head; Following tamping arm is with to be fixed on the back shaft of making firm by ramming on the casing hinged, this back shaft and the described lateral vertical of making casing firm by ramming; The piston rod of exciting hydraulic cylinder and the lower end of last tamping arm is fixedly connected and the upper end of the cylinder body of exciting hydraulic cylinder and following tamping arm is fixedly connected, perhaps the lower end of the cylinder body of exciting hydraulic cylinder and last tamping arm is fixedly connected and the piston rod of exciting hydraulic cylinder and the upper end of following tamping arm are fixedly connected; The lower end of following tamping arm is fixed with tamping pickaxe.
2. the tamping unit of employing hydraulic direct shock excitation according to claim 1 is characterized in that: described exciting hydraulic cylinder is two rod hydraulic cylinders; The two ends of the piston rod of this pair rod hydraulic cylinder and the lower end of last tamping arm is fixedly connected and the upper end of the cylinder body of two rod hydraulic cylinders and following tamping arm is fixedly connected, perhaps the lower end of the cylinder body of two rod hydraulic cylinders and last tamping arm is fixedly connected and the two ends of the piston rod of two rod hydraulic cylinders and the upper end of following tamping arm are fixedly connected.
3. the tamping unit of employing hydraulic direct shock excitation according to claim 1 is characterized in that: described exciting hydraulic cylinder is the structure of the reverse mounted in pairs of plunger case; Two plunger rods of this exciting hydraulic cylinder are fixedly connected with the lower end of last tamping arm respectively and the upper end of the cylinder body of exciting hydraulic cylinder and following tamping arm is fixedly connected, and perhaps the lower end of the cylinder body of this exciting hydraulic cylinder and last tamping arm is fixedly connected and two plunger rods of exciting hydraulic cylinder are fixedly connected with the upper end of following tamping arm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101046786A CN101725094B (en) | 2010-01-29 | 2010-01-29 | Tamping device adopting hydraulic direct shock excitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101046786A CN101725094B (en) | 2010-01-29 | 2010-01-29 | Tamping device adopting hydraulic direct shock excitation |
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| CN101725094A true CN101725094A (en) | 2010-06-09 |
| CN101725094B CN101725094B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101046786A Expired - Fee Related CN101725094B (en) | 2010-01-29 | 2010-01-29 | Tamping device adopting hydraulic direct shock excitation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899993A (en) * | 2011-07-27 | 2013-01-30 | 常州市瑞泰工程机械有限公司 | Operational method for stabilizing tracks in turnout zone |
| CN111501436A (en) * | 2020-04-30 | 2020-08-07 | 中国铁建重工集团股份有限公司 | Hydraulic tamping device |
| CN111706572A (en) * | 2020-06-28 | 2020-09-25 | 中国铁建重工集团股份有限公司 | Hydraulic tamping device |
-
2010
- 2010-01-29 CN CN2010101046786A patent/CN101725094B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899993A (en) * | 2011-07-27 | 2013-01-30 | 常州市瑞泰工程机械有限公司 | Operational method for stabilizing tracks in turnout zone |
| CN102899993B (en) * | 2011-07-27 | 2014-09-24 | 常州市瑞泰工程机械有限公司 | Operational method for stabilizing tracks in turnout zone |
| CN111501436A (en) * | 2020-04-30 | 2020-08-07 | 中国铁建重工集团股份有限公司 | Hydraulic tamping device |
| CN111501436B (en) * | 2020-04-30 | 2021-12-24 | 中国铁建重工集团股份有限公司 | Hydraulic tamping device |
| CN111706572A (en) * | 2020-06-28 | 2020-09-25 | 中国铁建重工集团股份有限公司 | Hydraulic tamping device |
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| Publication number | Publication date |
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| CN101725094B (en) | 2011-11-30 |
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