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Piston rolling friction or suspension friction method and anti-abrasion piston device implementing method

A rolling friction and anti-wear technology, which is applied to fluid pressure actuators, components of pumping devices for elastic fluids, pistons, etc., can solve problems such as ineffective effects, increased energy consumption, and production stop losses, and achieve reduction Strength and toughness requirements, reducing energy consumption, and reducing the effect of material volume

Inactive Publication Date: 2013-09-11
刘素华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The friction between the reciprocating impact device of existing engines or slurry pumps or air compressors or hydraulic cylinders or cylinders, excavators, coal shearers, roadheaders or loaders, etc., is mostly sliding friction. Or the structure of slurry pump or air compressor or hydraulic cylinder or cylinder is cylinder, piston, seal, etc., the piston is set in the cylinder, the seal seals liquid or gas or solid, and the cylinder supports the piston through the seal. The piston reciprocates in the cylinder under the support of the seal, and a large sliding frictional resistance is formed between the seal and the cylinder. Due to the large frictional resistance, when the seal is severely damaged, it will be unable to continue to work, resulting in loss of production. even cause serious safety accidents
In addition, the relative movement between the piston and the cylinder needs to overcome a large sliding friction force. When the volume and weight of the piston are large and the cavity of the cylinder is large, the wear on the cylinder is more serious due to the large volume and weight of the piston. The sliding friction resistance between the piston and the cylinder seriously affects the movement speed of the piston, which reduces the working efficiency and increases the energy consumption
For how to reduce the sliding friction between the piston and the cylinder, the commonly used method is to improve the machining accuracy of the cylinder and the piston, improve the surface roughness of the cylinder and the piston, and reduce the sliding friction resistance of relative motion. However, It does not fundamentally change the structure of the reciprocating motion of the cylinder and the piston by sliding friction, so the effect is not obvious

Method used

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  • Piston rolling friction or suspension friction method and anti-abrasion piston device implementing method
  • Piston rolling friction or suspension friction method and anti-abrasion piston device implementing method
  • Piston rolling friction or suspension friction method and anti-abrasion piston device implementing method

Examples

Experimental program
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Effect test

Embodiment 1

[0145] figure 1It is the anti-wear piston device described in Example 1, which includes a piston 1, a friction body 2, a cylinder body 3, and a friction body support 4. The friction body 2 is a rolling body, and the rolling body includes a guide rolling body 5 and a piston rolling body. The body 6, the guide rolling body 5 and the piston rolling body 6 are separated, the piston 1 and the friction body 2 are arranged in the cylinder body 3, the friction body 2 supports the relative reciprocating motion of the piston 1 and the cylinder body 3 by rolling friction, and the piston 1 includes a piston rod 7 , the piston rod is connected separately with the piston 1, the friction body support 4 is a rolling body support, the rolling body support includes a guide rolling body support 8 and a piston rolling body support 9, the guide rolling body support 8 and the cylinder body 3 Split connection, the piston rolling element support 9 is integrated with the cylinder body.

[0146] The p...

Embodiment 2

[0151] figure 2 It is the anti-wear piston device described in Embodiment 2, which includes a piston 1, a friction body 2, a cylinder body 3, and a friction body support 4. The friction body 2 is a suspension, and the suspension includes a guide suspension 10 and a piston suspension. Body 11, guiding suspension 10 and piston suspension 11 are separated, piston 1 includes piston rod 7, piston rod and piston 1 are integrated, friction body support 4 is a suspension support, and suspension support includes guide suspension The support 12 and the piston suspension support 13, the guide suspension support 12 and the piston suspension support 13 are integrated, the suspension support and the cylinder body 3 are integrated, the suspension support is a magnetic suspension support, and the magnetic suspension The support is a permanent magnetic levitation support, an N-pole permanent magnetic levitation body is set on the piston rod 7, an N-pole permanent magnetic levitation body is s...

Embodiment 3

[0158] image 3 , Figure 4 It is the anti-wear piston device described in Embodiment 3, which includes a piston 1, a friction body 2, and a cylinder body 3. The piston 1 is provided with more than two rows of friction bodies 2, and more than two rows of friction bodies 2 bear Gravity load, a row of friction bodies 2 has at least one friction body 2 supporting the reciprocating impact of the piston 1, avoiding the concentrated damage to the friction body caused by only one row of friction bodies 2 bearing the gravity load of the piston 1, the friction body 2 supports the piston 1 and the cylinder body 3 Rolling friction or suspension friction relatively reciprocates, and the friction body 2 and the piston 1 are arranged separately.

[0159] The friction body 2 can be connected with the piston 1 or integrated.

[0160] Others are the same as embodiment 1.

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Abstract

The invention relates to the field of machinery, in particular to a piston rolling friction or suspension friction method and an anti-abrasion piston device implementing the method. The anti-abrasion piston device comprises a piston, friction bodies, a cylinder body and a friction body supporting piece, wherein the friction bodies comprise rolling bodies and / or suspension bodies; the friction body supporting piece and the cylinder body are split, or connected in a splitting manner, or integrated, or the friction body supporting piece and the piston are split, or connected in a splitting manner, or integrated; the piston and the friction bodies are arranged in the cylinder body; and the friction bodies support the piston and the cylinder body to make rolling friction or suspension friction reciprocating motion. The original structure of sliding friction between the piston and the cylinder body is changed by equipment, and the sliding friction is changed into rolling friction or suspension friction, so that the anti-abrasion piston device is simple in structure, high in strength, high in space utilization efficiency, reliable in performance, high in manufacturability, ease to process and manufacture, and long in service life.

Description

technical field [0001] The invention relates to the mechanical field, and is especially suitable for engines, slurry pumps, air compressors, reciprocating impact devices, hydraulic cylinders or cylinders, and specifically relates to a method for piston rolling friction or suspension friction and an anti-wear piston device for implementing the method . Background technique [0002] The friction between the reciprocating impact device of existing engines or slurry pumps or air compressors or hydraulic cylinders or cylinders, excavators, coal shearers, roadheaders or loaders, etc., is mostly sliding friction. Or the structure of slurry pump or air compressor or hydraulic cylinder or cylinder is cylinder, piston, seal, etc., the piston is set in the cylinder, the seal seals liquid or gas or solid, and the cylinder supports the piston through the seal. The piston reciprocates in the cylinder under the support of the seal, and a large sliding frictional resistance is formed betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/00F04B39/00F02F1/18F02F3/00F15B15/20
CPCF16J1/02
Inventor 刘素华
Owner 刘素华
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