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Novel hydraulic crushing hammer

A hydraulic breaker, a new type of technology, used in earth movers/excavators, construction, etc., can solve problems such as strain, damage to piston 4 and cylinder 3, and fast rebound speed

Inactive Publication Date: 2018-11-16
赵德朝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In working condition 1 and working condition 2, after the piston 4 strikes the drill rod 11, there is a relatively high pressure in the upper chamber A, and the rebound energy cannot be released in time (the rebound speed of the piston 4 is fast), which will inevitably cause the piston 4 to impact the cylinder. body 3, causing damage to piston 4 and cylinder 3 (strain)

Method used

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail with reference to the accompanying drawings (main accompanying drawings: Figure 10 , Figure 11 , Figure 12 , Figure 13 ).

[0030] Explanation of some reference signs:

[0031] 1 Nitrogen chamber 2 Piston ring 3 Cylinder body 4 Piston 5 Drill rod seat 6 Inner sleeve 7 Inner sleeve stop pin 8 Flat pin 9 Outer cover 10 Outer cover stop pin 11 Drill rod 12 Inflatable valve 13 Valve cover 14 Valve sleeve 15 Valve core 16 Hydraulic pump 17 fuel tank 18 hex nut 19 long bolt 20 ax nut 21 accumulator 22 flow regulating valve 23 unloading groove 24 upper chamber unloading groove 25 ring unloading groove A upper chamber B lower chamber C main sealing area.

[0032] This technology is based on the piston ( Figure 12 ) on the upper cavity unloading groove 24, cylinder 3 ( Figure 13 ) is provided with an annular unloading groove 25 on the inner wall, and the annular unloading groove 25 is directly connected wit...

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Abstract

The invention provides a novel hydraulic crushing hammer in order to avoid the phenomenon that after a piston 4 hits a drill rod 11, oil of a hydraulic system continues to enter an upper cavity A to do idle work, the resilient energy of a piston cannot be released in time, consequently, the piston 4 impacts on a cylinder body 3, and a matching face is damaged (pulled).

Description

technical field [0001] The invention relates to a construction machinery attachment, in particular to a novel hydraulic breaker. Background technique [0002] For crushing stone, concrete, and other construction materials, hydraulic hammers are attached to various machines, such as excavators, backhoes, or other similar machines. The hydraulic hammer is mounted to the arm of the machine and connected to the hydraulic system. The high-pressure fluid in the hydraulic system is supplied to the hydraulic hammer to drive the reciprocating movement of the piston in contact with the work tool, and strike the work tool to complete the crushing task. [0003] Existing hydraulic breaker hammer core (main drawings: figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 ) mainly includes: nitrogen chamber 1, piston ring 2, cylinder body 3, piston 4, drill rod seat 5, inner sleeve 6, inner sleeve retainer pin 7, flat pin 8, outer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F5/30
CPCE02F5/30E02F5/305
Inventor 赵德朝
Owner 赵德朝