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Low-rotational-inertia vibration exciter

A technology of moment of inertia and vibration exciter, which is applied in roads, road repairs, roads, etc., and can solve problems such as large moment of inertia

Pending Publication Date: 2021-05-28
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the present invention provides a low moment of inertia vibrator, which solves the problem of large moment of inertia

Method used

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  • Low-rotational-inertia vibration exciter
  • Low-rotational-inertia vibration exciter
  • Low-rotational-inertia vibration exciter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , 2 As shown, a low moment of inertia vibrator includes: an excitation shaft 4, a movable eccentric sleeve 2 sleeved on the excitation shaft and limit blocks located at both ends of the excitation shaft, the movable eccentric sleeve is located on the Between the limiting blocks, the axial length of the movable eccentric sleeve is much greater than the sum of the axial lengths of the two limiting blocks, and in a state of vibration, the limiting block is used to drive the movable eccentric sleeve to rotate.

[0034] The two limit blocks can be mirrored on the same excitation axis;

[0035] The movable eccentric sleeve 2 includes a sleeve and connecting blocks arranged at both ends of the sleeve. The connecting block is used to contact the limiting block, so that in the vibration state, the limiting block drives the connecting block to rotate to drive the movable eccentric The sleeve rotates, and the outer peripheral surface of the movable eccentric sle...

Embodiment 2

[0046] On the basis of Embodiment 1, the fixed bearing effect of the limiting block is further enhanced.

[0047] The excitation shaft 4 is provided with a first groove corresponding to the limiting block, and the limiting block is provided with a second groove corresponding to the first groove, and the first groove is connected to the first groove. A limit key is set between the two grooves, and the first groove, the second groove and the limit key are used in an interference fit, so that the limit key can not only play the role of positioning the limit block, but also share a part of the movable eccentric sleeve The impact load can reduce the impact stress of the welding seam of the limit block and enhance the reliability of the structure. Preferably, the second groove is located on the contact surface of the limiting portion 26 that is in contact with the vibration axis, of course, it can also be located on the contact surface of the fixing portion 25 that is in contact wit...

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Abstract

The invention discloses a low-rotational-inertia vibration exciter which comprises a vibration excitation shaft, a movable eccentric sleeve arranged on the vibration excitation shaft in a sleeving mode and limiting blocks located at the two ends of the vibration excitation shaft. The movable eccentric sleeve is located between the limiting blocks, the axial length of the movable eccentric sleeve is far greater than the sum of the axial lengths of the two limiting blocks, and in the vibration state, the limiting blocks are used for driving the movable eccentric sleeve to rotate. The rotational inertia can be reduced.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a low moment of inertia vibrator. Background technique [0002] Vibratory rollers are mainly used for compacting roadbed and pavement materials. During the operation, they need to be compacted back and forth, and the excitation system needs to be started and stopped repeatedly. The exciter is a key part inside the steel wheel. It uses its own eccentric mechanism to generate an exciting force under high-speed rotation, and combines its own structure to limit the position, completes the switch between large vibration operation and small vibration operation, and realizes large vibration Force and small excitation force two levels of amplitude. [0003] Such as figure 1 As shown, the current mainstream vibrator mainly includes the excitation shaft, four fixed eccentric blocks, two movable eccentric blocks, and two sets of limit devices. The mounting hole of the posit...

Claims

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Application Information

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IPC IPC(8): E01C19/28
CPCE01C19/28E01C19/286
Inventor 钟飞张赢丽高亮苑涛
Owner XCMG CONSTR MACHINERY
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