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Cylinder type self-balancing eccentric shaft

A self-balancing, eccentric shaft technology, applied in eccentric shafts, grain processing, inertial force compensation, etc., can solve the problems of jaw crusher mechanism complexity, increased power consumption, frequent replacement, etc., to eliminate double power consumption factors and save operation cost, work efficiency improvement effect

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 (eccentric vibration will occur if the weight of the eccentric block is insufficient or exceeds, and if there is an error in the eccentric orientation), so the balance of general jaw crusher products is not tested before leaving the factory.
It is also because of this that the eccentric vibration of the existing jaw crusher in use will cause fatigue damage to related parts and reduce its service life. Among them, the screws connecting the crusher and the stand are easy to break and need to be replaced frequently; the eccentric moment of inertia increases Dissipates power and generates noise due to vibration

Method used

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  • Cylinder type self-balancing eccentric shaft
  • Cylinder type self-balancing eccentric shaft
  • Cylinder type self-balancing eccentric shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: as figure 2 As shown, a cylindrical self-balancing eccentric shaft 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 the concentric bearing gear 3, locking gear 2 and reference gear 1 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 Above; the axis line of the connecting gear 5 is located in the eccentric bearing gear 4 relative to the rotation center line O 1 -O 1 The opposite side of the eccentricity, that is, the mass center point N of the connecting gear 5 is located on the opposite side of the eccentric bearing gear 4, and the eccentric moment of the connecting gear 5 is equal to that of the eccentric bearing gear 4, b...

Embodiment 2

[0037] Embodiment 2: as image 3 and Figure 4 As shown, the connecting gear 5 is provided with an in-line fine-tuning screw hole 6 passing through it, and the center line of the fine-tuning screw hole 6 is located on the plane where the eccentric center line of the eccentric bearing gear 4 and the rotation center line of the concentric bearing gear 3 are located. ; The fine-tuning screw hole 6 is provided with a pair of torque fine-tuning screws threadedly matched with it, and the pair of torque fine-tuning screws includes two adjusting screws 7 and stop screws 8 that cooperate with each other one after the other and abut together. All the other are with embodiment 1.

Embodiment 3

[0038] Embodiment 3: as Figure 5 and Figure 6As shown, the connecting gear 5 is provided with a cross-shaped fine-tuning screw assembly passing through it, and the cross-shaped fine-tuning screw assembly includes two fine-tuning screw holes 6 that are perpendicular to each other but do not intersect; A pair of torque trimmer screws. The pair of torque fine-tuning screws includes two adjusting screws 7 and stop screws 8 that cooperate with each other and abut together one after the other.

[0039] The fine-tuning screw holes 6 all run through the center of the connecting gear radially, and the direction of the fine-tuning screw holes 6 is perpendicular to the eccentric center line of the eccentric bearing gear 4 . The center line of one of the fine-tuning screw holes 6 is located on the plane where the eccentric center line of the eccentric bearing rack 4 and the rotation center line of the concentric bearing rack 3 are located.

[0040] All the other are with embodiment 1...

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Abstract

The invention discloses a cylinder type self-balancing eccentric shaft. A center line of a connecting guard in the eccentric shaft is originally arranged together with a center line of eccentric bearing guards in the same direction (or coincides with a rotary center line) but is currently arranged in the opposite directions, and self-balancing of the eccentric inertia spin moment of the eccentric shaft is achieved by utilizing the opposite eccentric inertia moment balance principle. 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 cylinder 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 jaw crushers, in particular to a cylindrical 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/18F16F15/26B02C1/02
Inventor 朱兴良
Owner YIWU BLACK AND WHITE MINING MACHINERY
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