WO2021166234A1 - Dispositif de compaction par vibrations - Google Patents

Dispositif de compaction par vibrations Download PDF

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Publication number
WO2021166234A1
WO2021166234A1 PCT/JP2020/007155 JP2020007155W WO2021166234A1 WO 2021166234 A1 WO2021166234 A1 WO 2021166234A1 JP 2020007155 W JP2020007155 W JP 2020007155W WO 2021166234 A1 WO2021166234 A1 WO 2021166234A1
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WO
WIPO (PCT)
Prior art keywords
vibration
unit
support frame
power unit
drive transmission
Prior art date
Application number
PCT/JP2020/007155
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English (en)
Japanese (ja)
Inventor
匡慶 石田
Original Assignee
株式会社石田製作所
株式会社大成モナック
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 株式会社石田製作所, 株式会社大成モナック filed Critical 株式会社石田製作所
Priority to PCT/JP2020/007155 priority Critical patent/WO2021166234A1/fr
Publication of WO2021166234A1 publication Critical patent/WO2021166234A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines

Definitions

  • the present invention relates to a vibration compaction device, and more particularly to a vibration compaction device that realizes a vibration-proof structure from a vibration unit to a power unit and a handle unit and improves work efficiency by making the power cord of the power unit cordless.
  • FIG. 7A is a perspective view illustrating the conventional tamping device 100.
  • FIG. 7B is an exploded side view illustrating the conventional tamping device 100.
  • the tamping device 100 mainly includes an engine 101, a fuel tank 102, a vibration unit 103, a tamping tool 104, a holding bar 105, and a pair of grips 106 and 107. Be prepared. With this structure, the operator can operate the holding bar 105 while grasping the grips 106 and 107, push the typing tool 104 into the ballast, and vibrate the ballast to compact the ballast.
  • the vibration transmission unit 108 of the vibration unit 103 mainly includes a vibration generating unit 109 and a flexible shaft 110 connected to the vibration generating unit 109, and the flexible shaft 110 is tamped. It is inserted into the insertion hole 114 inside the tool 104.
  • the vibration generating portion 109 is directly connected to the connecting portion 113 provided at the end of the rotating shaft 115 of the engine 101 via the connecting portion 112 provided at the end of the rotating shaft 111 (for example, the patent). See Reference 1.).
  • the rotating shaft 115 of the engine 101 and the rotating shaft 111 of the vibration generating portion 109 are directly connected via the connecting portions 112 and 113, and the rotational force of the engine 101 Is transmitted as the rotational force of the vibration generating unit 109.
  • the vibration generating unit 109 is an eccentric cam provided at the center of the rotating shaft 111, and vibration is generated when the eccentric cam rotates using the rotational force.
  • the ballast can be compacted as described above by transmitting the vibration to the tamping tool 104 via the universal shaft 110.
  • the tamping device 100 has a structure in which the rotating shafts 111 and 115 are directly connected to each other via the connecting portions 112 and 113, and the vibration generated by the vibration generating portion 109 is directly transmitted to the engine 101.
  • the vibration generated by the vibration generating unit 109 is mainly vibration due to lateral vibration.
  • the vibration due to the lateral vibration is transmitted to the engine 101, the balance of rotation of the engine 101 is likely to be lost.
  • the more abnormal noise is generated from the engine 101, the more the engine 101 vibrates, which may lead to damage to parts of the engine 101, shortening of the life of the engine 101, and the like.
  • the engine 101, the vibration generating portion 109, the universal shaft 110, the tamping tool 104, and the like are fastened from the upper end thereof with bolts, screws, and the like to be assembled.
  • this structure there is a problem that it is difficult to assemble the rotating shaft 115 of the engine 101 and the rotating shaft 111 of the vibration generating portion 109 on substantially the same axis line which is the center of rotation, depending on the tightening condition of each fastening portion.
  • the rotation shaft 115 of the engine 101 rotates at a rotation center different from the rotation shaft 111 of the vibration generating unit 109, so that the rotation balance of the engine 101 may be easily lost as described above.
  • the tamping device 100 has a structure in which the holding bar 105 is connected to the side surface of the housing of the vibration unit 103, and the vibration generated by the vibration generating unit 109 is directly transmitted to the holding bar 105.
  • the vibration transmitted to the holding bar 105 is transmitted to the operator as hand vibration, which makes it difficult for the operator to perceive the delicate ballast hardness and ballast state at the time of compaction, resulting in deterioration of work efficiency. There is a fear.
  • the present invention has been made in view of the above circumstances, and is a vibration compaction that realizes a vibration-proof structure from a vibrating part to a power part and a handle part and improves workability by making the power cord of the power part cordless. It provides the device.
  • the vibration compaction device of the present invention includes a vibrating body, a vibrating unit that applies vibration to the vibrating body, a power unit that drives the vibrating unit, a drive transmission unit of the power unit, and a drive transmission unit of the vibrating unit.
  • the connecting mechanism includes a first shaft joint portion to which the drive transmission portion of the power portion is mounted, and a second shaft joint portion to which the drive transmission portion of the vibration portion is mounted.
  • the shaft joint portion, the first elastic portion connected to the outer peripheral side of the first shaft joint portion, the second elastic portion connected to the outer peripheral side of the second shaft joint portion, and the first elastic portion.
  • the first elastic portion and the second elastic portion are connected to each other, and the drive transmission portion of the power portion and the drive transmission portion of the vibration portion are not directly connected to each other. It is characterized in that it is connected via the elastic portion 1 and the second elastic portion.
  • the first elastic portion is fastened to the first shaft joint portion and the connecting member, respectively, and the second elastic portion is the second shaft. It is fastened to the joint portion and the connecting member, respectively, and the rotation center of the drive transmission portion of the power portion and the rotation center of the drive transmission portion of the vibration portion are arranged on substantially the same axis. It is a feature.
  • the drive transmission unit of the power unit, the drive transmission unit of the vibration unit, and the connection mechanism are integrally rotated via the power unit.
  • the first support frame that supports the power unit the second support frame that supports the vibration unit, the first support frame, and the second support frame.
  • the anti-vibration rubber is further provided between the first support frame and the anti-vibration rubber.
  • the anti-vibration rubber disposition region of the second support frame is inclined diagonally upward with respect to the disposition region of the vibrating portion of the second support frame.
  • the anti-vibration rubber disposition region of the first support frame is characterized in that it is disposed substantially in parallel with the anti-vibration rubber disposition region of the second support frame.
  • the power unit is an engine or a battery-powered motor.
  • the vibration compaction device of the present invention further includes a handle portion for operating the vibrating body and a grip attached to the handle portion, and the region of the inside of the grip facing the handle portion is provided.
  • a plurality of vibration buffer grooves are formed along the extending direction of the handle portion.
  • the vibration compaction device of the present invention includes a connecting mechanism for connecting the drive transmission unit of the power unit and the drive transmission unit of the vibration unit, and the connection mechanism is a first type to which the drive transmission unit of the power unit is mounted.
  • the first elastic portion and the second elastic portion are fastened to the connecting member, respectively.
  • the drive transmission unit of the power unit, the drive transmission unit of the vibration unit, and the connecting mechanism rotate integrally via the power unit.
  • the vibrating unit is driven by the power from the power unit, while the vibration generated in the vibrating unit is difficult to be transmitted to the power unit.
  • the anti-vibration rubber is arranged between the first support frame and the second support frame, and the anti-vibration rubber is arranged on the first and second support frames.
  • the installation area slopes diagonally upward.
  • the power unit is an engine or a battery-powered motor.
  • the power cord becomes cordless, and the operator does not need to carry and install the generator, the power cord, etc., and the work efficiency is greatly improved.
  • a plurality of vibration buffer grooves are formed in the region facing the handle portion inside the grip portion along the extending direction of the handle portion.
  • the vibration compaction device 10 according to the embodiment of the present invention will be described in detail with reference to the drawings.
  • the same code number is used for the same member, and the repeated description is omitted.
  • the vertical direction indicates the height direction of the vibration compaction device 10
  • the left-right direction indicates the width direction when the vibration compaction device 10 is viewed from the front
  • the front-rear direction indicates the depth direction of the vibration compaction device 10. ing.
  • FIG. 1A is a front view illustrating the vibration compaction device 10 of the present embodiment.
  • FIG. 1B is a rear view illustrating the vibration compaction device 10 of the present embodiment.
  • FIG. 2 is an exploded perspective view illustrating the vibration compaction device 10 of the present embodiment.
  • the vibration compaction device 10 mainly includes a power unit 11 including an engine, a fuel tank 12 for storing fuel supplied to the power unit 11, and a power unit.
  • a connecting mechanism 14 (FIG. 2) that connects the vibrating unit 13 that vibrates by the power from the 11 and the drive shaft 21B (see FIG. 2) that transmits the power of the power unit 11 and the drive shaft 31 (see FIG. 2) of the vibrating unit 13. 2), the vibrating body 15 that vibrates through the vibrating unit 13, the anti-vibration rubber 16 that vibrates the vibration generated by the vibrating unit 13 and the like, the handle unit 17 that operates the vibrating body 15, and the power unit.
  • a support frame 18 for supporting a vibrating portion 13, an anti-vibration rubber 16, a handle portion 17, and the like is provided.
  • An example of the vibration compaction device 10 is a tie tamper.
  • the vibrating body 15 is inserted into the ballast (not shown), and the vibration from the vibrating body 15 is transmitted to the ballast. Compact by poking the ballast below the sleeper (not shown).
  • another example of the vibration compaction device 10 is a ground compaction device.
  • the vibrating body 15 is arranged on the ground, and the ground is compacted by the vibration from the vibrating body 15. Compact.
  • the case of the Titamper as the vibration compaction device 10 will be described.
  • the power unit 11 for example, a GX35 freely tilted 4-stroke engine manufactured by Nissan Motor Co., Ltd. is adopted, and the power unit 11 is driven by the fuel supplied from the fuel tank 12.
  • the power unit 11 is fixed to the first support frame 18A which is a part of the support frame 18, and is arranged between the pair of arm portions 17D and 17E of the handle portion 17.
  • the fuel tank 12 is arranged adjacent to the side of the power unit 11 and supplies fuel to the power unit 11 via a fuel hose (not shown).
  • the vibration compaction device 10 it is not necessary to supply electric power from an external power source such as a generator to the vibration unit 13, and a power cord for connecting the vibration unit 13 and the external power source is not required.
  • the power cord of the vibration compaction device 10 is made cordless, and the operator does not need to carry and install the generator, the power cord, etc., and the operator can perform the power cord according to the work range. There is no need to extend the work.
  • the operator does not need to handle the power cord so that it does not get entangled with the rail (not shown) or the sleepers during the work, and the vibrating body 15 can be operated from a direction that makes it easy to work on the sleepers. Work efficiency is greatly improved.
  • the vibrating unit 13 is below the power unit 11 and is fixed to the second support frame 18B which is a part of the support frame 18.
  • the vibrating body 15 is, for example, a beater made of a plate-shaped body, and the lower end side thereof is inclined inward from the middle portion thereof. Then, the upper end side of the vibrating body 15 is fastened to the side surface of the housing 29 (see FIG. 2) of the vibrating unit 13, so that the vibration generated by the vibrating unit 13 is transmitted to the vibrating body 15.
  • This structure makes it easy for the vibrating body 15 to be inserted below the sleepers (not shown), and by compacting the ballast below the sleepers, the phenomenon of lifting of the sleepers can be prevented.
  • the support frame 18 constitutes a frame such as an outer frame of the vibration compaction device 10, and fixes and supports the power unit 11, the vibration unit 13, the vibrating body 15, the handle unit 17, and the like.
  • four anti-vibration rubbers 16 are bolted between the first support frame 18A and the second support frame 18B of the support frame 18.
  • the four anti-vibration rubbers 16 are arranged around the vicinity of the bottom surface 11A of the power unit 11, and are arranged, for example, at intervals of approximately 90 degrees in the horizontal direction.
  • the anti-vibration rubber 16 is arranged between the vibrating portion 13 and the handle portion 17, and the vibration transmitted from the vibrating portion 13 to the handle portion 17 is significantly damped by the anti-vibration rubber 16. ..
  • the vibration at the hand of the operator is significantly reduced, and the operator can easily feel the delicate hardness of the ballast and the state of the ballast at the time of compaction.
  • the anti-vibration rubber 16 for example, an S-type mount manufactured by NOK Co., Ltd. is adopted, and the rubber is formed of natural rubber having a hardness of 60.
  • the arm portions 17D and 17E of the handle portion 17 have a box-shaped structure having a space inside, for example, using a sheet metal such as stainless steel.
  • a cylindrical anti-vibration rubber 19 (see FIG. 2) is bolted to the intermediate portion of the arm portions 17D and 17E so as to bridge the internal space thereof in the front-rear direction.
  • the anti-vibration rubber 19 also attenuates the vibration in the handle portion 17 itself, so that the vibration at the operator's hand is also significantly reduced.
  • the anti-vibration rubber 19 is formed of, for example, a natural rubber having a hardness of 60.
  • FIG. 2 shows a state in which the components of the vibration compaction device 10 are disassembled from the upper end side to the lower end side.
  • FIG. 2 for convenience of illustration, some of the component parts are omitted.
  • the handle portion 17 is arranged on the upper end side thereof, and the operator operates the handle portion 17, so that the orientation of the vibrating body 15 and the ballast of the vibrating body 15 during work are performed.
  • the amount of insertion into can be adjusted.
  • the handle portion 17 has an abbreviated shape in which a single character-shaped rod-shaped portion 17A, a pair of grips 17B and 17C attached to both ends of the rod-shaped portion 17A, and the upper end side thereof is bolted to the rod-shaped portion 17A. It has a pair of arm portions 17D and 17E. The lower ends of the arm portions 17D and 17E are bolted to the support frame 18, respectively.
  • the power unit 11 is arranged between the pair of arm units 17D and 17E and is fixed to the first support frame 18A.
  • the drive transmission unit 21 of the power unit 11 is arranged on the bottom surface 11A of the power unit 11 and transmits the power from the power unit 11 to the vibration unit 13.
  • the drive transmission unit 21 mainly includes a clutch drum 21A assembled to a clutch (not shown) on the bottom surface 11A of the power unit 11, a drive shaft 21B arranged at the center of the clutch drum 21A, and a drive shaft 21B. It has a bearing 21C that rotatably supports it. Then, the clutch drum 21A comes into contact with the clutch as the rotation speed of the power unit 11 increases and rotates, so that the drive shaft 21B also rotates.
  • the drive transmission unit 21 is inserted into the opening 22 opened in the center of the first support frame 18A.
  • the power unit 11 is bolted to the first support frame 18A via the housing 23.
  • the second support frame 18B is arranged below the first support frame 18A.
  • the four anti-vibration rubbers 16 are bolted between the first support frame 18A and the second support frame 18B.
  • An opening 24 opened at the center of the second support frame 18B is also formed, and the drive transmission portion 21 is also inserted into the opening 24.
  • the housing 25 is bolted to the lower surface of the second support frame 18B, and the connecting mechanism 14 is arranged in the internal space of the housing 25.
  • the connecting mechanism 14 mainly includes a first shaft joint 26 to which the drive transmission 21 of the power unit 11 is mounted, and a second shaft joint 27 to which the drive transmission 30 of the vibration portion 13 is mounted. It has a connecting member 28 that connects the first shaft joint portion 26 and the second shaft joint portion 27. Details will be described later with reference to FIG. 3, but the first shaft joint 26 of the connecting mechanism 14 is fitted with the drive shaft 21B of the drive transmission unit 21, and the connecting mechanism 14 is together with the drive shaft 21B of the power unit 11. Rotate.
  • the vibrating portion 13 is arranged below the connecting mechanism 14, and is bolted to the second support frame 18B via the housing 29.
  • the drive shaft 31 of the drive transmission unit 30 of the vibration unit 13 is led out from the upper end surface of the housing 29, and the second shaft joint portion 27 of the connecting mechanism 14 fits with the drive shaft 31 of the vibration unit 13.
  • the drive shaft 31 of the vibrating unit 13 rotates integrally with the drive shaft 21B of the power unit 11 via the connecting mechanism 14, so that the power of the power unit 11 is transmitted to the vibrating unit 13.
  • the vibrating portion 13 is arranged inside the housing 29, and is mainly a drive shaft 31, a bearing 32 that rotatably supports the drive shaft 31, and an eccentric cam arranged at a substantially central portion of the drive shaft 31. 33 and.
  • the drive shaft 31 of the vibrating unit 13 rotates integrally with the drive transmission unit 21 of the power unit 11, so that the eccentric cam 33 also rotates, and vibration is generated in the vibrating unit 13.
  • the upper end side of the vibrating body 15 is arranged between the side surface of the housing 29 of the vibrating portion 13 and the support frame 18, and is fastened to the side surface of the housing 29 via the pressing plate 34. With this structure, the vibration generated in the vibrating unit 13 is transmitted to the vibrating body 15, so that the vibrating body 15 vibrates.
  • FIG. 3A is a front view illustrating the connecting mechanism 14 of the vibration compaction device 10 of the present embodiment.
  • FIG. 3B is a top view illustrating the connecting mechanism 14 of the vibration compaction device 10 of the present embodiment.
  • FIG. 3C is a side view illustrating the connecting mechanism 14 of the vibration compaction device 10 of the present embodiment.
  • FIG. 2 is referred to as appropriate.
  • the connecting mechanism 14 mainly includes a first shaft joint 26 on which the drive shaft 21B of the power unit 11 is mounted, and a drive shaft 31 of the vibration unit 13. It has a second shaft joint portion 27 to which is mounted, and a connecting member 28 that connects the first shaft joint portion 26 and the second shaft joint portion 27.
  • the connecting member 28 is, for example, a rectangular steel material having a long side in the left-right direction and a short side in the front-rear direction of the vibration compaction device 10.
  • the first shaft joint portion 26 mainly includes a cylindrical portion 41 into which the drive shaft 21B is inserted and fits with the drive shaft 21B, and a first elastic portion 42 that is fastened to the outer peripheral surface of the cylindrical portion 41.
  • the second shaft joint portion 27 is mainly a cylindrical portion 43 into which the drive shaft 31 is inserted and meshes with the drive shaft 31, and a second elastic portion that is fastened to the outer peripheral surface of the cylindrical portion 43. 44 and.
  • the cylindrical portions 41 and 43 and the connecting member 28 are each made of a rigid steel material and rotate integrally with the drive shafts 21B and 31.
  • the first and second elastic portions 42 and 44 are formed of, for example, natural rubber having a hardness of 60.
  • the first elastic portion 42 is, for example, an annular rubber member, and as shown by the circles 45 and 46, the first elastic portion 42 is in contact with the outer peripheral surface of the cylindrical portion 41 at at least four locations. Arranged in contact. Then, in the two regions indicated by the circles 45, the first elastic portion 42 is fastened to the cylindrical portion 41 via the bolt 47 (see FIG. 3A). On the other hand, in the two regions indicated by the circles 46, the first elastic portion 42 is fastened to the connecting member 28 via the bolt 48.
  • the structure of the second elastic portion 44 and the attachment structure of the second elastic portion 44 to the cylindrical portion 43 are the same as those of the first elastic portion 42, and the above description is referred to, and the description thereof is omitted here. do. Then, the cylindrical portions 41 and 43 are fitted with the drive shafts 21B and 31, respectively, by inserting a fitting pin (not shown) into the fitting groove 49.
  • the drive shaft 21B of the power unit 11 and the drive shaft 31 of the vibrating unit 13 are connected via the first and second elastic portions 42, 44 and the connecting member 28, and the drive shafts 21B, 31 are connected to each other.
  • a structure that is not directly connected is realized.
  • the vibration generated in the vibrating portion 13 is damped by the first and second elastic portions 42 and 44, so that the vibration transmitted from the drive shaft 31 to the drive shaft 21B is significantly reduced.
  • the one-point chain wire 50 indicates the axial center of the cylindrical portions 41 and 43, but in the power unit 11, the drive shaft 21B is less likely to be affected by the vibration from the drive shaft 31, and the rotation center of the drive shaft 21B is determined.
  • the power unit 11 is fixed to the first support frame 18A, and the vibrating unit 13 is fixed to the second support frame 18B.
  • the drive shafts 21B and 31 are connected to each other via the first and second elastic portions 42 and 44 and the connecting member 28. That is, since the power unit 11 and the vibrating unit 13 are fixed to different members, the rotation centers of the drive shafts 21B and 31 are abbreviated as the axial center indicated by the alternate long and short dash line 50 depending on the tightening condition of each fastening portion. It becomes difficult to arrange them on the same axis.
  • the first and second elastic portions 42, 44 are arranged between the drive shafts 21B, 31 so that the vibration compaction device 10 can be assembled during the assembling work.
  • the first and second elastic portions 42 and 44 are slightly twisted and function as a member for adjusting the position. As a result, it becomes easy to adjust so that the rotation centers of the drive shafts 21B and 31 are located on substantially the same axis as the axis indicated by the alternate long and short dash line 50, respectively.
  • the first and second elastic portions 42 are in operation. , 44 makes it easier for the center of rotation of the drive shafts 21B and 31 to rotate on substantially the same axis as the axis indicated by the one-point chain line 50.
  • the drive shaft 21B rotates stably on substantially the same axis as the axial center indicated by the alternate long and short dash line 50, so that the parts of the power unit 11 are damaged and the life of the power unit 11 is reached. Is prevented from decreasing.
  • FIG. 4 is a perspective view illustrating the attachment structure 51 of the vibration-proof rubber 16 of the vibration compaction device 10 of the present embodiment.
  • anti-vibration rubbers 16 are arranged between the first support frame 18A and the second support frame 18B.
  • the upper end side of the anti-vibration rubber 16 is bolted to the first support frame 18A, and the lower end side of the anti-vibration rubber 16 is bolted to the second support frame 18B.
  • the first support frame 18A has four disposition areas 52 to which the anti-vibration rubber 16 is fastened, and a disposition area 53 to which the power unit 11 is fastened in the middle of the four disposition areas 52. And have. That is, the four arrangement regions 52 are arranged in the outer peripheral region of the arrangement region 53, for example, at intervals of approximately 90 degrees in the horizontal direction. Further, the arrangement region 53 is a horizontal plane substantially parallel to the bottom surface 11A (see FIG. 2) of the power unit 11 (see FIG. 2), and each of the four arrangement regions 52 with respect to the arrangement region 53. For example, it tilts diagonally upward by about 30 degrees.
  • the second support frame 18B has substantially the same shape as the first support frame 18A, and the second support frame 18B also has four disposition areas 54 to which the anti-vibration rubber 16 is fastened and four. It has an arrangement region 55 in which the vibrating portion 13 (see FIG. 2) is fastened in the middle of the arrangement area 54.
  • the arrangement region 55 of the second support frame 18B is a horizontal plane substantially parallel to the top surface 13A (see FIG. 2) of the vibrating portion 13 (see FIG. 2), and the four arrangement regions 54 are each substantially parallel. For example, it is inclined diagonally upward by about 30 degrees with respect to the arrangement region 55.
  • the power unit 11 is in a state of being inclined and supported by the four anti-vibration rubbers 16 via the first and second support frames 18A and 18B.
  • the load of the power unit 11 is supported by the combination of the compression direction and the shear direction of the anti-vibration rubber 16, so that the vibration in the horizontal direction and the rotation direction in the front-rear direction and the left-right direction can be easily damped.
  • the power unit 11 rotates in a direction substantially parallel to the arrangement region 53 of the first support frame 18A, but the vibration in the rotation direction is significantly damped by the four anti-vibration rubbers 16.
  • the four anti-vibration rubbers 16 significantly reduce the horizontal vibration transmitted from the vibrating unit 13 to the power unit 11.
  • the vibration in the rotation direction generated by the power unit 11 and the vibration in the horizontal direction generated from the vibration unit 13 resonate.
  • the center of rotation thereof stably rotates on the same axis as the axis indicated by the alternate long and short dash line 50, so that the parts of the power unit 11 are damaged and the power unit is damaged. The decrease in the life of 11 is prevented.
  • FIG. 5A is a cross-sectional view illustrating the grip 17B of the vibration compaction device 10 of the present embodiment, and shows a cross section of the rod-shaped portion 17A along the extending direction.
  • FIG. 5B is a side view illustrating the grip 17B of the vibration compaction device 10 of the present embodiment.
  • the structure of the grip 17C of the handle portion 17 is substantially the same as the structure of the grip 17B.
  • the description of the grip 17B will be referred to, and the description thereof will be omitted.
  • FIG. 2 is referred to as appropriate.
  • the grip 17B is made of, for example, a rubber member having a substantially cylindrical shape, one end side in the extending direction is opened, and the grip 17B is attached to the rod-shaped portion 17A of the handle portion 17 by using the opening. Will be done. Then, two annular protrusions 61 and 62 are arranged on the outer peripheral surface of the grip 17B, and the operator operates the handle portion 17 while gripping between the annular protrusions 61 and 62. On the other hand, inside the grip 17B, a space portion 64 having a substantially cylindrical shape is formed around the axis indicated by the alternate long and short dash line 63.
  • the inner diameter of the space portion 64 is designed according to the outer diameter of the rod-shaped portion 17A of the handle portion 17, and in the region of the thickness T1 of the grip 17B, the inner peripheral surface of the grip 17B is the outer peripheral surface of the rod-shaped portion 17A. It will be in a state of contact.
  • a vibration buffer groove 65 having a semicircular cross section is in the extending direction of the rod-shaped portion 17A.
  • Five lines are formed at regular intervals along the outer peripheral surface.
  • the contact area between the inner peripheral surface of the grip 17B and the outer peripheral surface of the rod-shaped portion 17A is significantly reduced. Then, the area where the operator's hand comes into contact with the rod-shaped portion 17A via the grip 17B is reduced, so that the operator's hand vibration is further reduced. In the region L2 of the grip 17B, the grip 17B is in close contact with the rod-shaped portion 17A over substantially the entire surface, and the grip 17B is prevented from falling out of the rod-shaped portion 17A.
  • FIG. 6 is a front view for explaining a vibration compaction device 70 which is a modified example of the present embodiment, and shows a case where a motor 71 is adopted as a power unit 11.
  • the driving method of the motor 71 as the power unit 11 is, for example, a battery type, two batteries 72 are attached to the upper surface of the motor 71, and the motor 71 receives electric power from the battery 72. Driven by.
  • the motor 71 and the battery 72 as the power unit 11 are fixed to the first support frame 18A and are arranged between the pair of arm portions 17D and 17E of the handle portion 17.
  • the vibration compaction device 70 is different from the vibration compaction device 10 described above with reference to FIGS. 1 to 5, mainly in a drive system adopted as its power unit 11, and other constituent members. Are the same. Therefore, in the vibration compaction device 70, the same components as the vibration compaction device 10 are assigned the same number, and the description thereof will be referred to the above-mentioned description.
  • the vibration compaction device 70 it is not necessary to supply electric power from an external power source such as a generator to the vibration unit 13, and a power cord for connecting the vibration unit 13 and the external power source is not required.
  • the power cord of the vibration compaction device 70 is made cordless, and the work efficiency of the operator is greatly improved as in the vibration compaction device 10.
  • the vibration compaction device 70 the same effect as described above can be obtained in the vibration compaction device 10.
  • various modifications can be made without departing from the gist of the present invention.

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Abstract

Les dispositifs de tassement pour pistes présentent des problèmes car l'arbre rotatif d'un moteur et l'arbre rotatif d'une section de production de vibrations sont reliés directement, et les vibrations provenant de la section de production de vibrations sont transmises facilement au moteur.　Ce dispositif de compactage par vibrations (10) comprend un mécanisme de liaison (14) qui relie une section de puissance motrice (11) et une section de vibration (13), et le mécanisme de liaison (14) a une première section de raccord d'arbre (26) sur laquelle est montée une section de transmission d'entraînement (21) de la section de puissance motrice (11), une deuxième section de raccord d'arbre (27) sur laquelle est montée une section de transmission d'entraînement (30) de la section de vibration (13), et un élément de liaison (28) qui relie la première section de raccord d'arbre (26) et la deuxième section de raccord d'arbre (27). Du fait de cette structure, la section de transmission d'entraînement (21) et la section de transmission d'entraînement (30) ne sont pas reliées directement, une vibration produite dans la section de vibration (13) n'est pas transmise facilement à la section de puissance motrice (11), et la section de puissance motrice (11) est entraînée dans un état stable, ce qui évite un endommagement des composants de la section de puissance motrice (11) et une diminution de la durée de vie.
PCT/JP2020/007155 2020-02-21 2020-02-21 Dispositif de compaction par vibrations WO2021166234A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53122810U (fr) * 1977-03-07 1978-09-29
JPS54104109A (en) * 1978-02-03 1979-08-16 Shibaura Eng Works Ltd Tieetamper
JPS5980801A (ja) * 1982-10-27 1984-05-10 精工技研株式会社 防振タイタンパ
JPH0978834A (ja) * 1995-09-12 1997-03-25 Kenzo Era コンクリート締固め用バイブレータ
JP2005307561A (ja) * 2004-04-21 2005-11-04 Koshin Kensetsu Kk タイタンパ用ビーター
WO2012139687A1 (fr) * 2011-04-13 2012-10-18 Robel Bahnbaumaschinen Gmbh Bourroir manuel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53122810U (fr) * 1977-03-07 1978-09-29
JPS54104109A (en) * 1978-02-03 1979-08-16 Shibaura Eng Works Ltd Tieetamper
JPS5980801A (ja) * 1982-10-27 1984-05-10 精工技研株式会社 防振タイタンパ
JPH0978834A (ja) * 1995-09-12 1997-03-25 Kenzo Era コンクリート締固め用バイブレータ
JP2005307561A (ja) * 2004-04-21 2005-11-04 Koshin Kensetsu Kk タイタンパ用ビーター
WO2012139687A1 (fr) * 2011-04-13 2012-10-18 Robel Bahnbaumaschinen Gmbh Bourroir manuel

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