SU1423691A1 - Vibratory percussive device - Google Patents

Abstract

The invention relates to the vibration technique and can be used in pile driving, compacting concrete. The aim of the invention is to improve utilization by extending the frequency control range and increasing efficiency. The device contains a guide frame 1, in the upper part of which a vibration exciter of directional vibrations is placed, rigidly connected with the hammer 3 and made of a non-conductive material. a base 5 with teeth 6, at the ends of which ferromagnetic plates 7 are fixed. In the lower part of the guide frame 1 there is a magnetic field excitation system including a ferromagnetic base 8 with teeth 9 and permanent magnets I). On the extreme teeth 11 of the base 8, H-shielding magnetic cores 12 are fixed, on which the control winding sections 15 are placed. Under the action of the driving force, the vibration exciter 2 and the impactor 3 make / g for equal vibrations accompanied by the Umi shock anvil 4. With this, permanent magnets 10, interacting with electromagnetic plates 7, create a force, aiui- logical elastic c. springs. The presence of U-shaped magnetic conductors 12 with sections 15 of the control winding, which create magnetic fluxes that are not associated with the fluxes of magnets 10, makes it possible to improve the use of the device by expanding the range of frequency characteristics and increasing its efficiency. 2 Il. "(L

Description

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I: i) |) about It HUL (the technique of vibration to a Hoii technique and can be used when driving piles, compacting and loosening |) and compaction of concrete.

The goal of the | | Etenn is to improve its iso1zovannuyu aspirienn range of adjustment of frequency characteristics and the new efficiency.

At (f) Hi. I shown vib) () shock device; on (jiiii. 2 the mechanism for moving the base of the excitation system, section.

Vibration () ss) () contains guide frame 1, on the upper part of the coffer (() swapping and vibration exciter 2 direction- icHHbix ko, 1bapiy. rigidly connected with the impactor 3, acting on the anvil 1 n 11 filled with non-magnetic conductor n1 (1 macro, base 5 with teeth ti 1 hi Konnax 3v6noB 6 secured.parts (JK ppoMa I nor I plasgin 7. fi with a pizhii part on iij) .i3.nnoiHcii;) 1 is fastened with the isome of the magnet1I) 1H} nol, including I, (n rromagny In () 1 base 8 with the zubpa- and U, on which the clamps in the groove are fixed : | Osto ni 1e magnets lO, ob) а1пенные к. jKrtHOHMeHHijiMH poles. , 1i 11 i)) eppoMai HHtiogo (.ic-side part P-shaped1) 1ma and 12c io conductors: 1K1c tips 13. 11a free side parts, 14 U-shaped Mitraionic 12, marked with reference 1, S windings uiragev Connected with 1 shot of 16 food. Ferro-ivai iiii I Hijie ii.iaciuHbi 7 are exchanged in the groove of H1PYMA matii 10. On the base, 1neny are additional teeth And I, Priosyna 18, connotations between but, 1usl LDI IOS Yu

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13 11-shaped magneT01 and 10VODODs 12.

The ferromagygous base S and the magnetolar 12 are fastened.1 to 1 non-magnetic, x i right, 1H, 1, fixed () in 1 ipny iia non-magnetic proc. uiKiieiKiCHUbix on the direction, 1JJ1. and paNK 1. A guide 1 set. Tena na na | tinnik 1), inside of KOKjporo paciKJ-. iarae 1 c) e1L. Operated on Bbici) ie anvil 4. Strokes) 11 screw 20 is screwed into nut 21, h; |chrepleN || y) on ijieppoMarHiinioM base .S and mounted on support 22. When rotating the draw 20, the longitudinal non-directional fever takes place) romag1 | itno1 on base 8 together with additional P-type Mai HH hoop |) gadflies 12 relate to ferromagnetic plates 7. In the druym version of the ycipoiicTBa fer |), the magnetic core of S .1 / .. ke | be made of a composite of II 1.) best | 1x ma1ii 1O11provodov.

1 The shockproof device operates in the following way.

Under the action of a periodic forced s.ly vibration exciter 2 and shock 3 s () ve1) Piuyag directed to the Panin stake along the vertical axis of the axis, which is generated by periodic blows against

4. When the striker 3 moves down or up, the ferromagnetic plates 7 are shifted relative to the poles of the permanent magnets 10. The magnitude of the normal and tan-ion components of the permanent magnet 10 and the ferromagnetic plates 7 changes. Since the magnetic system is symmetric about the vertical axis of the vibro-impact device, the norm.}

0 components of Maiintnaya force are balanced, and its tangential components, playing a | | the role of a restoring force, vary linearly in a certain area of movement of strikes 3.

Thus, when the striker 3 moves, the permanent magnets 10, interacting with the ferromagnetic base plates 7, create a si., Ana 101 the elastic force of deflected cylindrical springs. The change in the hardness characteristic of the interaction between the movable part and the excitation system of the Hieci axis is a means of changing the current in sections 15 of the control winding, without stopping (gibing device).

.1a and: and)

Vibro-shock device containing a napravl / gkntsuyu frame, in the upper part of which the H-vibrator exciters, which are rigidly connected, is rigidly connected to the anvil and is made of non-magnetic conductor and mats riyal, we base the teeth, At the bottom of the cob I opbix are fixed feminine plates, and in the lower part of the base frame of the rootkit is a system for eliminating the magnetite () on the floor, incl.) the shaft into the fer | , on horsebacks of which in the name Zak |) en, 1eny are magnetized magnets, on |) a1 valued others r to another y razno- nmennymi poles uprav.t guide section

0 obg ggki,) replaceable pairs of magnet wires (.) Dah, and the mechanism of non-displacement (}) eromagnet} 1О1 О (to be new, with the aforementioned ferromagnetic ilastin located in the groove between the permanent magnets, O1.gichayuyu-1CS1 with the fact That, with the center of the use of the fluorescence of the range of the pel l uanfraction frequency characteristics and efficiency, on non-magnetic conduct precipitation associated with the vibration exciter, were made to one second; the teeth with ferromagnetic plates were equipped with one b (ferrule ferrule agnitnogo G1-shaped base magnitonrovodami with pole shoes placed in the groove, with the control winding section ytom

5 are placed on the other side of the U-shaped magnetic circuits, and the ferromagnetic plates of the additional teeth are arranged in the groove of the U-shaped magnetic conductors between the:, 1 lugs.

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Claims (1)

Claim A vibro-impact device containing a guide frame, in the upper part of which is placed a vibration exciter of directional vibrations, rigidly connected to the hammer, acting on the anvil and made of non-magnetic conductive material, with a base with teeth, ferromagnetic plates are fixed at the ends, and an excitation system is fixed at the bottom of the guide frame magnetic field, including a ferromagnetic base with teeth, on the horns of which permanent magnets are fixed in the groove, facing each other differently poles, sections of the control winding located on the magnetic circuits, and a mechanism for moving the ferromagnetic base, while the said ferromagnetic plates are located in the groove between the permanent magnets, characterized in that. In order to improve utilization by expanding the range of regulation of frequency characteristics and increasing efficiency, additional teeth with ferromagnetic plates are made on a non-magnetic base connected with a vibration exciter, and the excitation system is equipped with боковой-shaped. magnetic circuits with pole tips fixed to one side of the teeth of the ferromagnetic base, placed in the groove, while the sections of the control winding are placed on the other side of the U-shaped magnetic circuits, and ferromagnetic Lastin additional teeth located in a groove of U-shaped magnetic circuit between the pole pieces.