Hydraulic impacter

A technology of hydraulic impactor and high-pressure oil port, applied in the field of hydraulic impactor, can solve the problems of difficult processing, poor rock breaking (breaking) effect, etc., and achieve the effect of reducing processing difficulty

Active Publication Date: 2013-10-16
SUNWARD INTELLIGENT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional rear-controlled hydraulic impact mechanism has a thick and short piston, does not use the transmission of impact stress waves, has poor rock breaking (breaking) effect, and is difficult to process

Method used

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the specific implementation manner of this patent is described in further detail.

[0020] like Figure 1 to Figure 4 Shown, a hydraulic impactor, see figure 1 , The hydraulic impactor is composed of a three-stage piston 1 whose diameter gradually increases from the striking end, a guide sleeve 2, a cylinder body 3, a columnar flow distribution valve core 4, and a valve sleeve 5. figure 1 The state shown is the initial state of the hydraulic impactor. At this time, the front chamber A of the piston hydraulic impact mechanism is connected to the high-pressure oil through the high-pressure oil port a, and the rear chamber B is connected to the first oil return port b. The piston 1 is under the action of the high-pressure oil. Make return acceleration movement to the right, the oil port connected to the feedback oil passage c and the rear cavity is closed, the rodless chamber of the spool is connected to the second oil retur...

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PUM

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Abstract

The invention discloses a hydraulic impactor. A piston comprises a striking section, a front-cavity section and a rear-cavity section; diameters of the striking section, the front-cavity section and the rear-cavity section are increased sequentially; the striking section of the piston is mounted on a cylinder body through a guide sleeve; the front-cavity section of the piston is arranged in a front cavity of the cylinder body; the rear-cavity section of the piston is arranged in a rear cavity of the cylinder body; a flat valve is mounted in the rear cavity of the cylinder body; a cavity is formed between the valve body of the flat valve and the rear-cavity section of the piston; the part, located outside the valve body, of a valve core of the flat valve is arranged in the cavity; the core valve of the flat valve and the piston are arranged coaxially; the front cavity of the cylinder body is connected with a high-pressure oil port; the rear cavity of the cylinder body can be communicated with high-pressure oil and return oil through a feedback oil duct and an oil guide groove respectively; and a rodless cavity of the flat valve can be connected with the rear cavity of the cylinder body and the return oil through the feedback oil duct. The hydraulic impactor improves the rock breaking efficiency, has an anti-idling function, prolongs the service life of a drill tool, and reduces the processing difficulty.

Description

technical field [0001] The invention relates to a hydraulic impactor. Background technique [0002] Hydraulic impact mechanism is widely used in various fields such as mining, metallurgy, construction, mechanical processing, etc., for foundation construction, tunnel excavation, exploration, quarrying, drilling of blast holes in mining operations or various crushing work. According to the flow distribution form, the current hydraulic impact mechanism can be divided into the rear control type (high pressure in the front chamber, alternating high and low pressure in the rear chamber) and double control type (alternating high and low pressure in the front and rear chambers). The traditional rear-controlled hydraulic impact mechanism has a thick and short piston, does not use the transmission of impact stress waves, has poor rock breaking (breaking) effect, and is difficult to process. Contents of the invention [0003] The object of the present invention is to provide a hydra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/22F15B13/02
Inventor 何清华舒敏飞赵宏强高淑蓉林宏武
Owner SUNWARD INTELLIGENT EQUIP CO LTD
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