CN101324278A - Hydraulic breaking hammer change-over valve and manufacturing method thereof - Google Patents
Hydraulic breaking hammer change-over valve and manufacturing method thereof Download PDFInfo
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- CN101324278A CN101324278A CNA2008101408633A CN200810140863A CN101324278A CN 101324278 A CN101324278 A CN 101324278A CN A2008101408633 A CNA2008101408633 A CN A2008101408633A CN 200810140863 A CN200810140863 A CN 200810140863A CN 101324278 A CN101324278 A CN 101324278A
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Abstract
The invention discloses a hydraulic pressure breaking hammer selector valve and a manufacturing method thereof in the technical field of hydraulic components. The hydraulic breaking hammer selector valve takes a middle cylinder body as a valve body; a valve opening is formed on the valve body; an oil duct is communicated with the inner wall of the valve hole and led to a cylinder of the middle cylinder body; a valve jacket is arranged in the valve hole and matched with the valve hole; a valve plug is arranged in the valve jacket; and a valve cover is arranged on the end part of the valve hole. The selector valve is characterized in that the valve hole is an unthreaded hole; an annular groove is formed on the outer wall of the valve jacket corresponding to the position of an opening of the oil duct; and an oil hole communicates the annular groove with a centre hole of the valve jacket. The manufacturing method comprises the steps of processing the valve hole, the valve jacket, the valve plug and the valve cover; conducting heat treatment; and assembling finished products. The method of the hydraulic pressure breaking hammer selector valve has the advantages of processing conveniently, reducing processing difficulty and effectively ensuring precision. The selector valve has the advantages of high functional reliability, lower processing cost and suitability for batch production.
Description
Technical field
The invention belongs to technical field of hydraulic elements, be specifically related to a kind of hydraulic breaking hammer change-over valve and preparation method thereof.
Background technique
The hydraulic breaking hammer of Xiao Shouing extensively adopts the selector valve device in the market, the valve seat processing of this selector valve is on middle cylinder body, adopted the method for processing groove in middle cylinder body valve opening to realize the connection of relevant oil circuit, increased difficulty of processing like this, its machining accuracy can't guarantee.The valve seat orifice that is arranged in addition on the cylinder body need adopt grinding, because this service weight is heavier and eccentric bigger, general machining equipment can't be processed, there is the eccentric grinding machine of part producer to meet the demands abroad, but only the eccentric grinding machine cost of separate unit is nearly 500～6,000,000 yuans, fabricating cost height, clamping inconvenience, the reject rate height, work efficiency is low.
Summary of the invention
For overcoming the above-mentioned defective that prior art exists, the object of the present invention is to provide a kind of rational in infrastructurely, cost is low, the reliable hydraulic breaking hammer change-over valve of commutation ability.
Another purpose of the present invention is to provide the making method of this hydraulic breaking hammer change-over valve.This making method is easy to process, has reduced difficulty of processing, can effectively guarantee precision, selector valve functional reliability height, and processing cost is low.
For achieving the above object, the present invention adopts technological scheme to be: hydraulic breaking hammer change-over valve is a valve body with middle cylinder body, offer valve opening on the valve body, be communicated with the oil duct of cylinder body oil cylinder in leading on the valve opening inwall, be provided with the valve pocket that is mated in the valve opening, be provided with spool in the valve pocket, the end of valve opening is provided with valve gap, it is characterized in that: described valve opening is a unthreaded hole, and the position of the corresponding oil duct opening of the outer wall of described valve pocket offers annular groove, is connected by oilhole between annular groove and the valve pocket center hole.
The making method of this hydraulic breaking hammer change-over valve: 1, valve opening processing: on middle cylinder body, process the valve opening of inner wall smooth, once-through by spark-erosion machine tool; 2, valve pocket processing: process the annular groove on the valve pocket outer wall and the inner bore of step of valve pocket by engine lathe, process oilhole, annular groove and inner bore of step are carried out grinding by grinding machine by drilling machine; 3, spool processing: spool carries out the fine finishing moulding by numerical control machining center processing back by grinding machine; 4, valve gap processing: by carrying out the fine finishing moulding by grinding machine after the machined into; 5, heat treatment: respectively valve pocket, spool and valve gap are heat-treated; 6, assembling finished product.
Adopt the beneficial effect of technique scheme: this hydraulic breaking hammer change-over valve is a valve body with middle cylinder body, on middle cylinder body, offer valve opening, valve opening is a unthreaded hole, and the position of the corresponding oil duct opening of the outer wall of valve pocket offers annular groove, and oilhole corresponding on annular groove and the valve pocket is connected.That is to say that the valve opening structure is a smooth inner bore, and the former annular groove that is located on the valve opening inwall is changed on the outer wall that is located at valve pocket.The valve pocket cooperation is assemblied in the valve opening, is provided with spool in the valve pocket, and the end of valve opening is provided with valve gap, and the selector valve that said structure constitutes is rational in infrastructure, and cost is low, and commutation ability is reliable.The processing of this hydraulic breaking hammer change-over valve valve opening, change the valve opening that on middle cylinder body, processes inner wall smooth by spark-erosion machine tool into by original eccentric grinding machine correct grinding valve opening, once-through, reduced difficulty of processing, improved work efficiency, greatly reduce processing cost, guaranteed the requirement of the cylindricity and the circularity in this hole simultaneously, and finished surface can corrosion.Annular groove changes on the outer wall that is located at valve pocket, the processing of annular groove can and general lathe and grinding machine carry out, need not special processing equipment, easy to process, cost is low, has solved the path groove simultaneously and measure difficult problem in course of working, and the change hole measuring is outer hole measurement.So the method for this hydraulic breaking hammer change-over valve is easy to process, has reduced difficulty of processing, can effectively guarantee precision, selector valve functional reliability height, processing cost is low, adapts to batch production requirement.
Description of drawings
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of hydraulic breaking hammer change-over valve of the present invention.
Fig. 2 is a hydraulic breaking hammer change-over valve preparation process flow chart.
Embodiment
Hydraulic breaking hammer change-over valve as shown in Figure 1, having with middle cylinder body is valve body 1, offer valve opening 2 on the valve body, valve opening 2 is the unthreaded hole of inner wall smooth, be communicated with the oil duct 3 of cylinder body oil cylinder in leading on the valve opening inwall, valve pocket 4 is positioned at valve opening 2 and matches with valve opening, the position of the corresponding oil duct opening of the outer wall of valve pocket 4 offers annular groove 7, be connected by oilhole 8 between annular groove 7 and the valve pocket center hole, be provided with the spool 5 that can radially move in valve pocket in the valve pocket 4, the end of valve opening 2 is provided with the valve gap 6 that compresses valve pocket 4.
The making method of this hydraulic breaking hammer change-over valve as shown in Figure 2: 1, valve opening processing: on middle cylinder body, process the valve opening of inner wall smooth, once-through by spark-erosion machine tool; 2, valve pocket processing: process the annular groove on the valve pocket outer wall and the inner bore of step of valve pocket by engine lathe, process oilhole, annular groove and inner bore of step are carried out grinding by grinding machine by drilling machine; 3, spool processing: spool carries out the fine finishing moulding by numerical control machining center processing back by grinding machine; 4, valve gap processing: by carrying out the fine finishing moulding by grinding machine after the machined into; 5, heat treatment: respectively valve pocket, spool and valve gap are heat-treated; 6, assembling finished product.
Claims (2)
1, a kind of hydraulic breaking hammer change-over valve, with middle cylinder body is valve body, offer valve opening on the valve body, be communicated with the oil duct of cylinder body oil cylinder in leading on the valve opening inwall, be provided with the valve pocket that is mated in the valve opening, be provided with spool in the valve pocket, the end of valve opening is provided with valve gap, it is characterized in that: described valve opening is a unthreaded hole, and the position of the corresponding oil duct opening of the outer wall of described valve pocket offers annular groove, is connected by oilhole between annular groove and the valve pocket center hole.
2, the making method of hydraulic breaking hammer change-over valve according to claim 1 is characterized in that making according to following process step: the processing of (1), valve opening: process the valve opening of inner wall smooth, once-through by spark-erosion machine tool on middle cylinder body; (2), valve pocket processing: process the annular groove on the valve pocket outer wall and the inner bore of step of valve pocket by engine lathe, process oilhole, annular groove and inner bore of step are carried out grinding by grinding machine by drilling machine; (3), spool processing: spool carries out the fine finishing moulding by numerical control machining center processing back by grinding machine; (4), valve gap processing: by carrying out the fine finishing moulding by grinding machine after the machined into; (5), heat treatment: respectively valve pocket, spool and valve gap are heat-treated; (6), assembling finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101408633A CN101324278A (en) | 2008-07-31 | 2008-07-31 | Hydraulic breaking hammer change-over valve and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101408633A CN101324278A (en) | 2008-07-31 | 2008-07-31 | Hydraulic breaking hammer change-over valve and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101324278A true CN101324278A (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101408633A Pending CN101324278A (en) | 2008-07-31 | 2008-07-31 | Hydraulic breaking hammer change-over valve and manufacturing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913497A (en) * | 2012-10-18 | 2013-02-06 | 温州市森泰环保设备有限公司 | Dynamic reversing power-compensating device for hydraulic breaking hammer |
| CN103154533A (en) * | 2010-10-13 | 2013-06-12 | 罗伯特·博世有限公司 | Method for producing a hydraulic device |
| CN103506814A (en) * | 2013-09-27 | 2014-01-15 | 巨隆集团芜湖兴隆液压有限公司 | Manufacturing method for valve element component |
| CN105757284A (en) * | 2016-04-13 | 2016-07-13 | 山东天瑞重工有限公司 | Flow distribution control valve for hydraulic breaking hammer |
| CN106002294A (en) * | 2016-06-13 | 2016-10-12 | 莆田市宏业精密机械有限公司 | Full automatic production line of high-pressure common rail control valve assembly |
| CN107662087A (en) * | 2016-03-02 | 2018-02-06 | 戴毅 | The manufacturing process of high-quality valve element |
| CN110124191A (en) * | 2019-06-03 | 2019-08-16 | 江苏丞宇米特医疗科技有限公司 | Valve body |
-
2008
- 2008-07-31 CN CNA2008101408633A patent/CN101324278A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9849546B2 (en) | 2010-10-13 | 2017-12-26 | Robert Bosch Gmbh | Method for manufacturing a hydraulic device |
| CN103154533A (en) * | 2010-10-13 | 2013-06-12 | 罗伯特·博世有限公司 | Method for producing a hydraulic device |
| CN103154533B (en) * | 2010-10-13 | 2016-09-07 | 罗伯特·博世有限公司 | For the method manufacturing hydraulic means |
| CN102913497A (en) * | 2012-10-18 | 2013-02-06 | 温州市森泰环保设备有限公司 | Dynamic reversing power-compensating device for hydraulic breaking hammer |
| CN102913497B (en) * | 2012-10-18 | 2016-03-02 | 温州市森泰环保设备有限公司 | A kind of hydraulic breaking hammer dynamically commutates and mends merit device |
| CN104842124B (en) * | 2013-09-27 | 2017-02-01 | 巨隆集团芜湖兴隆液压有限公司 | Reversing valve element assembly manufacturing method |
| CN104842124A (en) * | 2013-09-27 | 2015-08-19 | 巨隆集团芜湖兴隆液压有限公司 | Reversing valve element assembly manufacturing method |
| CN103506814A (en) * | 2013-09-27 | 2014-01-15 | 巨隆集团芜湖兴隆液压有限公司 | Manufacturing method for valve element component |
| CN107662087A (en) * | 2016-03-02 | 2018-02-06 | 戴毅 | The manufacturing process of high-quality valve element |
| CN107662087B (en) * | 2016-03-02 | 2019-04-26 | 句容嘉晟汽车配件有限公司 | The manufacturing process of high-quality precision valve core of the electromagnetic valve |
| CN105757284A (en) * | 2016-04-13 | 2016-07-13 | 山东天瑞重工有限公司 | Flow distribution control valve for hydraulic breaking hammer |
| CN106002294A (en) * | 2016-06-13 | 2016-10-12 | 莆田市宏业精密机械有限公司 | Full automatic production line of high-pressure common rail control valve assembly |
| CN106002294B (en) * | 2016-06-13 | 2018-01-09 | 莆田市宏业精密机械有限公司 | High-pressure common rail control valve group automatic production line |
| CN110124191A (en) * | 2019-06-03 | 2019-08-16 | 江苏丞宇米特医疗科技有限公司 | Valve body |
| CN110124191B (en) * | 2019-06-03 | 2024-06-04 | 江苏丞宇米特医疗科技有限公司 | Valve body |
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Open date: 20081217 |