SU747934A1 - Vibration-percussive device - Google Patents

Description

(54) VIBRATION DEVICE

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The invention relates to a vibration technique and can be used for pile driving, compacting and loosening soils and compacting concrete.

Known vibro-impact device containing the exciter, drummer, cap, anvil and elastic elements in the form of springs.

The disadvantage of such a vibro-impact device is the short life of the elastic elements and the inability to use the vibro-impact device in various modes without replacing the elastic elements.

The closest technical solution to the invention is a vibro-shock device, which contains a vibration exciter of directional vibrations, a guiding frame, an anvil and elastic elements in a magnetic system 2}.

The disadvantage of such a vibro-shock device 5 is the instability of the shock mode of oscillations due to the non-linear stiffness of the magnetic suspension.

And a small range of adjustment of the shock mode, as well as a decrease in the reliability of the vibro-impact device, since one of the magnets (electromagnets) is mounted on the impact part (associated with the vibration-exciter).

The purpose of the decompression is to create a vibro-impact device with a wide range of mode control and thus increased performance, stability of the modes and increased reliability.

The goal is achieved by the fact that in a vibro-impact device containing a vibration exciter

The 15 oscillations, the guiding frame, the anvil and the untouched elements in the form of a magnetic system, are last completed in the form of the ferromagnetic elements fixed on the external exciter and installed

Claims (2)

20 on the guide frame of the magnetic cores with the windings of utafleni connected to the power source and miter, located on both sides of the frigo, THREAD elements and facing each other with poles of different polarity. The drawing shows a vibro-impact device, a slit. Vibro-shock device consists of vibration exciter 1 directional oscillations, guide frame 2 The vibration exciter is mounted on the base E, on which the ferromagnetic elements 4 are fixed. connected to a controlled power source 9. Directing the frame is mounted on the headrest 10, inside which the anvil li is located. Under the action of a periodic disturbing force, which the vibration exciter creates and which is directed vertically downwards for some time, the impact part (vibration exciter 1 base 3, ferromagnetic elements and impactor 5) also moves downward. In doing so, the hammer 5 strikes the anvil 11, which is transmitted to the object being driven in, compacted or loosened. During the downward movement of the striking part, the ferromagnetic elements 4 are mixed downward relative to the constant; The magnetite 7 mounted on the frame is at the same time the force of magnetic attraction of the ferromagnetic elements to the pole of the permanent magnets is linear and is directed vertically upwards. At the subsequent moment of time, under the action of the restoring force of the magnetic attraction, the shock part returns to the equilibrium position. When a controlled voltage is supplied from a controlled power source 9 to the control windings 8, the latter create an additional magnetic flux in the magnetic circuit, which increases the magnetic force of the ferromagnetic elements 4 to the poles of the permanent magnets 7, thereby controlling the rigidity of the magnetic magnet weight within wide limits. The implementation of a wide range of adjusting the rigidity of the magnetic suspension is possible without stopping the vibro747934 impact device and can be carried out remotely using an external control panel. This provides an increase in labor productivity and creates conditions for the safe operation of staff. Since the magnetic system of the impact part contains only ferromagnetic elements made of ordinary electrical steel, and does not contain any WITCH magnets (or DC electromagnets), the reliability of such a device is much higher, there is no need to take special measures for. sewn ferromagnetic elements from shock loads. The magnetic system has a linear dependence of the magnetic attraction force on the displacement of movable ferromagnetic elements. This allows the use of a vibro-impact device in modes with different amplitude of oscillations without disturbing the stability of the vibro-impact mode, i.e. will allow the use of a vibro-impact device for a wide range of technological processes using vibration and shock. Claims Vibro-shock device containing directional vibration emitter, guiding frame, anvil and elastic elements in the form of a magnetic system, characterized in that performance by expanding the range, regulation and stability of the vibro-impact modes, the magnetic system is implemented in the form of a ferromagnetic mounted on the vibration exciter elements and mounted on the guide magnetic circuits with control windings connected to the power source and magnets are located on both sides of the ferromagnetic elements and poles of different polarity oriented to each other. Sources of information v taken into account in the examination 1. Authors. Certificate of the USSR №1ОИО, cl. E 02 D 7/18, 1954. 2. Author's date USSR № 420729, CL E 02 D 7/18, 1971.