Arranged hole type self-balancing eccentric shaft

A self-balancing, eccentric shaft technology, applied in the direction of eccentric shafts, shafts, shafts and bearings, can solve the problems of unbalanced detection, complicated jaw crusher mechanism, and reduced service life, so as to increase material costs and processing costs, Effect of elimination of double power consumption factor and reduction of manufacturing cost

Inactive Publication Date: 2013-09-18
YIWU BLACK AND WHITE MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The method of solving eccentric vibration in the above-mentioned prior art has the following deficiencies: ① It is necessary to add a pair of heavy flywheels and add eccentric balance weights on the flywheels, which complicates the mechanism of the jaw crusher and increases the manufacturing cost and power consumption in operation; In equipment manufacturing, it is difficult to detect the accuracy of its moment of inertia balance (the weight of the eccentric block is insufficient or exceeds, and t

Method used

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  • Arranged hole type self-balancing eccentric shaft
  • Arranged hole type self-balancing eccentric shaft
  • Arranged hole type self-balancing eccentric shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: as figure 2 As shown, a self-balancing eccentric shaft with rows of holes is composed of an eccentric bearing gear 4, a concentric bearing gear 3, a locking gear 2 and a reference gear 1 that are symmetrically connected to both sides of the connecting gear 5 from the inside to the outside. The axes of concentric bearing gear 3, locking gear 2 and reference gear 1 on the side are located on the rotation center line O of the whole shaft 1 -O 1 On the top, the center of the eccentric bearing gear 4 on both sides is located on the eccentric centerline O of the whole shaft 2 -O 2 On the connecting gear 5, a row of holes 6 is drilled on the eccentric side of the eccentric bearing gear 4, and the center lines of the rows of holes 6 are located at the eccentric center line of the eccentric bearing gear 4 and the rotation center line of the concentric bearing gear 3. Make the centroid point N of the connecting gear 5 be located on the eccentric opposite side of...

Embodiment 2

[0030] Embodiment 2: as image 3 As shown, fine-tuning screw holes 8 are arranged in the rows of holes 6, and fine-tuning bolts 7 that are threaded can be arranged therein. All the other are with embodiment 1.

Embodiment 3

[0031] Embodiment 3: as Figure 4 As shown, the connecting gear 5 is provided with a fine-tuning screw hole 8 that runs through its center in the radial direction, and the direction of the fine-tuning screw hole 8 is perpendicular to the depth direction of the row of holes 6. Matching pair of torque trimmer screws. The pair of torque fine-tuning screws includes two adjusting screws 9 and stop screws 10 that cooperate with each other and abut together one after the other.

[0032] All the other are with embodiment 2.

[0033] Practical: Change the connecting gear of the eccentric shaft from the original setting in the same direction as the eccentric bearing gear (or coincident setting with the rotation center line) to the opposite setting, and use the principle of reverse eccentric moment of inertia balance to realize the self-balancing of the eccentric shaft. The core technology of the present invention.

[0034] In the above adjustment process, the centroid point N of the ...

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PUM

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Abstract

The invention discloses an arranged hole type self-balancing eccentric shaft. Part of the mass of the same eccentric side of a connecting guard and eccentric bearing guards in an eccentric shaft in the prior art is deducted, namely that the volume of an arranged hole is milled so that the center of mass of the connecting guard shifts toward the opposite side, relative to a rotary center line, of the eccentric bearing guards and the eccentric inertia moment generated by the connecting guard is equal to the eccentric inertia moments generated by the eccentric bearing guards but the directions are opposite, thus achieving self-balancing of the eccentric inertia spin moment of the eccentric shaft. The eccentric inertia spin moment of the eccentric shaft in the prior art is self-balanced by the interior of the eccentric shaft instead of original external flywheels, thus eccentric balance weights on the external flywheels can be omitted. The arranged hole type self-balancing eccentric shaft has high balance precision and a simplified structure, is easy to detect and control, reduces the manufacturing cost of equipment and saves the operating cost.

Description

technical field [0001] The invention relates to the technical field of crushers, in particular to a hole-row self-balancing eccentric shaft. Background technique [0002] Jaw crusher, commonly known as jaw crusher, is one of the oldest and most widely used crushing equipment. The eccentric shaft is the core part of the jaw crusher equipment. The jaw plate in the jaw crushing pair is tightened and loosened when crushing materials, which comes from the eccentric design of the eccentric shaft. [0003] Prior art eccentric shafts have two centerlines (see figure 1 ): ① Rotation center line, that is, the center line where the axes of the concentric bearing gear, locking gear and reference gear are located; ② Eccentric center line, that is, the center line where the axes of the eccentric bearing gear and the connecting gear are located. The working mechanism of the eccentric shaft is: when the motor is connected with the flywheel on the reference gear through the V-belt and driv...

Claims

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Application Information

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IPC IPC(8): F16C3/18F16C3/20B02C1/02
Inventor 朱兴良
Owner YIWU BLACK AND WHITE MINING MACHINERY
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