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Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher

A vibration-damping and vibration-isolating technology for coal crushers, which is applied to shock absorbers, gas-liquid shock absorbers, shock absorbers, etc. The problems such as multi-axial spatial vibration of ring hammer coal crusher can improve the dynamic environment, reduce the cost of production and maintenance, and reduce the cost of maintenance.

Inactive Publication Date: 2012-08-29
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the problem that the vibration damping and isolation device of the existing ring hammer coal crusher cannot effectively reduce the multi-axial space vibration of the ring hammer coal crusher, it is difficult to ensure that the operating vibration parameters of the ring hammer coal crusher are within the standard range , the present invention provides a safe and reliable three-axial vibration reduction and isolation platform for ring hammer type coal crusher that can realize multi-axial vibration reduction and vibration isolation in space, and can ensure that the operating vibration parameters of ring hammer type coal crusher are within the standard range

Method used

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  • Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher
  • Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher
  • Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher

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specific Embodiment approach 1

[0032] Specific implementation mode one: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 8As shown, the 3-RCRP space three-translation mechanism is composed of an upper platform 43, a lower platform 47 and three branch chains with the same structure, and each branch chain is composed of a rotating pair 45, a cylindrical pair 46, a rotating pair 45 and a moving pair 44 , wherein the axis of rotation of the rotating pair 45 is parallel to the guiding direction of the moving pair 44, the axes of rotation of the rotating pair 45 and the cylindrical pair 46 are perpendicular to each other, and the three branch chains are arranged symmetrically. The overall structure of the three-axis vibration-reducing vibration-isolation platform of the ring hammer coal crusher belongs to the space redundant three-translation mechanism formed by adding several branch chains to the 3-RCRP space three-translation mechanism. It consists of a moving platform 1, guide rail co...

specific Embodiment approach 2

[0033] Specific implementation mode two: as figure 1 , figure 2 , image 3 and Figure 6 As shown, the difference between this embodiment and Embodiment 1 is: the uniaxial vibration damping and vibration isolation device 9 consists of an oil-pneumatic spring lower connector (with pneumatic opening and closing quick joint) 21, a main cylinder body 22, a main air chamber 23, a main Piston 24, main piston seal 25, piston rod 26, main oil chamber 27, sliding bearing 28, master cylinder cover 29, cover screw 30, master cylinder seal 31, oil pipe joint 32, oil pipe 33, damping hole 34 , auxiliary cylinder upper cover plate 35, auxiliary oil chamber 36, auxiliary cylinder body 37, auxiliary piston seal 38, auxiliary piston 39, auxiliary air chamber 40, auxiliary cylinder lower cover plate (with pneumatic open and close quick joint) 41 , can realize double-acting uniaxial vibration damping and vibration isolation, through the oil-pneumatic spring lower connector (with pneumatic op...

specific Embodiment approach 3

[0034] Specific implementation mode three: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 7 As shown, the difference between this embodiment and Embodiment 1 is: the disc spring of the elastic element in the uniaxial vibration reduction and vibration isolation device 9 is replaced by a metal coil spring, and the damper 42 is directly connected with the moving platform 1 and the installation foundation 11 by using a ball joint. . The damper 42 is a fluid damper or a viscoelastic material damper.

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Abstract

The invention discloses a triaxial vibration-decreasing / vibration-isolating platform of a hammer crusher, wherein, the whole platform structure belongs to the space redundancy 3-DOF translational mechanism, converting the spatial vibration caused by all excitation forces during the working process of the hammer crusher to triaxial wire vibration by the constraint of the space redundancy 3-DOF translational mechanism, then converting the triaxial wire vibration of a moving platform to uniaxial wire vibration of a mechanical active pair through mutual transitive relations between the moving platform of space redundancy 3-DOF translational mechanism and kinematics and mechanics of the mechanical active pair; buffering and vibration isolation are realized by elastic cells of the active pair and decreasing vibration can be realized through consuming vibrational energy of the system by damping elements of the active pairs, frictional damping of all kinematic pairs, or damping elements connected directly with the moving platform, thus reducing the spatial vibration of the hammer crusher and harm to ambient environment effectively, economically and reliably. The invention has the advantages of rational design, light weight, low cost, small volume and easy assembly and maintenance management, etc.

Description

technical field [0001] The invention relates to a multi-axial vibration reduction and vibration isolation device for a ring hammer type coal crusher, belonging to the research field of crushing machinery vibration control technology and devices. Background technique [0002] The ring hammer coal crusher uses the ring hammer suspended on the high-speed rotating wheel to impact and crush the material first, and the impacted material is squeezed, sheared, and ground between the ring hammer and the sieve plate to be crushed. After further crushing and reaching the required particle size, it will be discharged through the screen plate and the grids of the upper and lower discharge plates; the sundries that cannot be broken will enter the iron discarding room through the ring hammer, and will be cleaned regularly manually. Compared with the impact type, hammer type, jaw type and roller type coal crushers, the ring hammer type coal crusher has adjustable discharge particle size, ea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C13/31F16F9/06F16F9/34
Inventor 陈修祥
Owner JIANGSU UNIV
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