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Method for processing piston inner cavity of middle cylinder

A technology of piston inner cavity and processing method, which is applied in the field of breaker processing, can solve the problems of inseparable stability of fixed structure, reduce eccentricity, poor operability, etc. Effect

Inactive Publication Date: 2017-01-11
ANHUI ANTONG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The patented solution seems to be able to process two parallel holes, and it can basically be realized for small medium cylinders, but for large medium cylinders, its cross-section is 0.25m 2 , the length can reach 1m, it is difficult to achieve the effect of reducing the amount of eccentricity if the weight is only used to balance its gravity
On the other hand, for large medium cylinders, the fixing mechanism needs to have sufficient strength, and the accuracy of dimensions is inseparable from the stability of the fixing structure
To take a step back, even if this solution can be applied to a large cylinder, its side needs to be matched with the side wall clearance of the fixing device, it can only be used for the processing of a cylinder of one size. For cylinders with slightly different sizes body, and its processing fixtures must be set separately, which is a major factor in both cost and efficiency, and the actual operability is poor

Method used

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  • Method for processing piston inner cavity of middle cylinder
  • Method for processing piston inner cavity of middle cylinder
  • Method for processing piston inner cavity of middle cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] combine figure 2 , the processing method of a kind of middle cylinder piston cavity of the present embodiment adopts the cylinder body fixing mechanism to carry out the processing of piston cavity, and the cylinder body fixing mechanism is connected with the support disk 11 on the turning shaft 12 of the lathe, and the cylinder body is fixed The mechanism includes connecting plate 21, side wall baffle plate 31 and supporting plate 41 which are vertically fixed to each other, that is, side wall baffle plate 31 and supporting plate 41 are all perpendicular to connecting plate 21, and are fixedly connected with connecting plate 21, as figure 2 As shown in , the supporting plate 41 is arranged horizontally, the side wall baffle 31 is arranged vertically, and the lower end of the side wall baffle 31 is fixedly connected with the supporting plate 41 . The middle section of the supporting plate 41 passes through the axis of the rotating shaft 12 , and the two side wall baffl...

Embodiment 2

[0051] The basic structure of the cylinder fixing mechanism in this embodiment is the same as that in Embodiment 1, the difference is that four end face reference blocks 23 are arranged on the connection plate 21, and the distance between the end face reference blocks 23 and the axis of the rotating shaft 12 is the same , the end face reference blocks 23 are equally spaced along the circumferential direction, that is, the central angle between two adjacent end face reference blocks 23 is 90°.

[0052] The upper surface of the supporting plate 41 is provided with a bottom reference block 43, such as figure 2 As shown in , the bottom reference block 43 is arranged in two rows along the length direction of the pallet, and the position of the bottom reference block 43 and the position of the pressure plate 33 correspond up and down. When the pressing force is applied by the pressure plate 33, the bottom of the middle cylinder is Supported by the reference block 43, the point of a...

Embodiment 3

[0058] The basic structure of the cylinder fixing mechanism in this embodiment is the same as that of Embodiment 2, the difference is that: Figure 5 , in the present embodiment, a reinforcement bolt 24, a first rib 34 and a second rib 38 are arranged between the side wall baffle 31 and the connection plate 21, and the second rib 38 is perpendicular to the side wall baffle 31; the first rib The plate 34 is connected to the surface where the screw rod 32 is located on the side wall baffle plate 31 . The first rib 34 and the second rib 38 fix the side wall baffle from different directions, and the height of the second rib 38 from the supporting plate 41 is greater than the height of the axis of the piston hole relative to the supporting plate 41, which is closer to the overall structure The central position, the support strength is higher.

[0059] In order to reduce the overall weight, the side wall baffle 31 is provided with a first lightening hole 39, such as Image 6 As sh...

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Abstract

The invention discloses a method for processing a piston inner cavity of a middle cylinder and belongs to the field of quartering hammer processing. The method comprises the steps as follows: firstly, a piston hole and an oil inflow hole are drilled on a boring machine; then, a middle cylinder fixing mechanism is used for location and fixing to guarantee that the middle cylinder is attached to the datum plane; next, static balance debugging is performed for processing; the piston hole is processed firstly, a valve hole and a step surface hole are then processed, and the oil inflow hole and an oil outflow hole are processed with a special tool on a lathe tool shaft bar. The piston inner cavity of the middle cylinder is processed in cooperation with a high-strength cylinder fixing mechanism, the weight of the middle cylinder can be balanced, and the processing precision is high; by means of the processed oil holes, the performance of the middle cylinder can be further improve, and accordingly, the processing quality is greatly improved.

Description

technical field [0001] The invention relates to the technical field of breaking hammer processing, and more specifically, relates to a processing method for a piston inner cavity of a middle cylinder body. Background technique [0002] Breaking hammer is a kind of hydraulic energy as power to drive the piston inside the upper cylinder of the hydraulic cylinder to reciprocate, and hammer the drill rod through the piston to transmit energy to the drill rod, and the energy on the drill rod is then It is an important construction machinery that is absorbed by the hit object and crushed by the hit object. It is mainly used for crushing, demolition, and excavation of hard layers in construction. It is usually installed on excavators, loaders or power stations. It has the advantages of strong impact, convenient use, good maneuverability and high efficiency. With the development of hydraulic technology, hydraulic breakers are more and more widely used in all walks of life in societ...

Claims

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Application Information

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IPC IPC(8): B23P15/10
CPCB23P15/10
Inventor 陶国良
Owner ANHUI ANTONG MACHINERY
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