CN2033856U - Valve Control Mechanism of Injection Suction Impactor - Google Patents
Valve Control Mechanism of Injection Suction Impactor Download PDFInfo
- Publication number
- CN2033856U CN2033856U CN 88208964 CN88208964U CN2033856U CN 2033856 U CN2033856 U CN 2033856U CN 88208964 CN88208964 CN 88208964 CN 88208964 U CN88208964 U CN 88208964U CN 2033856 U CN2033856 U CN 2033856U
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- valve
- impactor
- hammer
- piston
- control mechanism
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Abstract
本实用新型提供一种用于钻探工程的射吸式冲击器阀控机构，其特点是击锤活塞与举锤活塞呈上下对装形式组合，结构参数优比，冲程与回程液能分配合理，工作流量下限减少到0.04m3/min，因而使射吸式冲击器技术性能提高，适用钻孔口的范围扩大，制造工艺简化，成本降低。
The utility model provides a valve control mechanism for an ejector-suction impactor used in drilling engineering, which is characterized in that the hammer piston and the hammer-lifting piston are combined in the form of upper and lower pairs, the structural parameters are superior, and the stroke and return fluid energy distribution is reasonable. The lower limit of the working flow is reduced to 0.04m 3 /min, so that the technical performance of the jet-suction impactor is improved, the range of applicable drilling openings is expanded, the manufacturing process is simplified, and the cost is reduced.
Description
The utility model relates to a kind of jet-suck impactor that is used for drilling project.
The hydraulical impact rotary drilling is one of modern five big drilling new technologies, and it has drilling efficiency, drilling quality and the minimizing drilling accident of raising, reduces multinomial technical economic benefits such as drilling cost.Impactor is a core instrument of realizing this technology, and the performance quality is directly connected to the effect of impact rotating probing technology, and the performance of impactor depends primarily on the valve control mechanism.Jet-suck impactor in patent document CN85101970A, its valve control mechanism is that two pistons of hammer and act hammer make up with nested form, be that valve chamber, valve, the mutual movable sealing engage sleeves of act hammer three parts of piston are fitted together, stroke is hydraulic cylinder with the valve chamber, backhaul then is hydraulic cylinder with the valve, and valve has the hammer piston concurrently and lifts two functions of hammer hydraulic cylinder.This structure makes the valve control mechanism have following shortcoming:
1. be subjected to the restriction of two-piston combining form, adopt the φ 54mm impactor of former valve control mechanism design, its working flow lower limit can not be lower than 0.08m
3/ min, therefore, should not be more and require working flow less than 0.08m in the probing workload
3Apply in the following bore boring of the φ 66mm of/min;
2. owing to be subjected to the restriction of two-piston combining form, two-piston diameter difference can not be less than 8mm, and therefore, their work done area ratio can not be got optimal value for the narrow range of design alternative;
3. valve chamber double as hydraulic cylinder, thereby endoporus machining accuracy and surface roughness require high, and need to do surface sclerosis and corrosion-resistance treatment, complex process, cost height.
In addition, the nozzle in this mechanism is connected with brazing with top connection, and inconvenience is changed on the airport, therefore in use rationally selects for use nozzle diameter to be affected.
The purpose of this utility model is to overcome the above-mentioned shortcoming in the valve control mechanism prior art, and the parameter of optimizing structure reduces the working flow lower limit, enlarges the scope of application, reduces manufacturing cost.
Structure of the present utility model such as Fig. 1 are characterized in, hammer piston 3 with lift hammer piston 6 and be up and down the dress form is made up.Hammer piston 3 is positioned at the top connection bottom and cooperates with 24 movable sealings of valve epicoele, taper hole is urgent is connected in nozzle 4 outer circular cones and hammer piston central authorities, valve 5 is cylindric, and the diameter of inner chamber 24 is respectively hammer and the hydraulic cylinder of lifting hammer two-piston 3,6 greater than the diameter of inner chamber 26.Lifting hammer piston 6 cooperates with 26 movable sealings of valve cavity of resorption with the block stamp 7 And that fastens as one with taper shank, valve upper and lower cavity 24,26 is communicated with by holding spray orifice 25, valve 5 lower end taper holes cooperate formation stop valve 27 with the block stamp 7 upper end vertex of a cones, valve chamber 2 and top connection 1 are by being threaded, end face 21 is the stroke of valve upper limit, and step 23 is the stroke of valve lower limit.
The course of work: valve 5 is in stroke lower limit 23 before starting, and block stamp 7 drops on the hammering block and (do not draw among the figure), and stop valve 27 is opened; When working solution through nozzle 4 inject at a high speed hold spray orifice 25 after, 24 step-downs of valve epicoele, cavity of resorption 26 and 28 superchargings of impactor inner chamber, under the pressure differential effect, valve 5 is successively up with block stamp 7, after valve 5 arrives at the stroke upper limit 21, block stamp 7 continues up, forces stop valve 27 quick closedowns; This moment, high velocity liquid stream produced water attack at valve insertion 24,26, pressure sharply rises, and impactor inner chamber 28 has been closed owing to stop valve 27, and bulking liquor stream interrupts suddenly, and pressure descends rapidly, promoting valve 5 under the pressure differential effect moves downward rapidly again with block stamp 7, after valve 5 arrived at stroke lower limit 23, block stamp 7 continued to come downwards to the impact hammering block, stop valve 27 this moment breakdown again, liquid is smooth logical, and valve 5 enters backhaul once more with block stamp 7.Like this, realization goes round and begins again and impacts continuously.
The utility model has following advantage:
1. the working flow lower limit is reduced to 0.04m
3/ min, impactor adapt to the boring bore can be reduced to φ 46mm;
2. their diameter difference of two-piston 3,6 combining forms permission is zero, and its work done area ratio can be by optimized design;
3. former valve chamber is replaced by valve 5 as the function of hammer piston hydraulic cylinder, and the simplified manufacturing process of valve chamber 2, cost reduce.
4. nozzle can be changed on the airport, is convenient to rationally match nozzle diameter.
Description of drawings:
Fig. 1 is a jet-suck impactor valve control mechanism structure chart;
Fig. 2 is the jet-suck impactor structure chart.
Embodiment:
The jet-suck impactor (Fig. 2) of the utility model design is made of valve control mechanism, energy delivery mechanisms and outer tube 8.
Hammer piston 3 is positioned at top connection 1 bottom in the valve control mechanism (Fig. 1), belongs to same part, is hydraulic cylinder with valve 5 inner chambers together with lifting hammer piston 6, and the diameter difference is advisable with 3～5mm.Nozzle 4 outer cones and hammer piston 3 central taper holes are Morse's taper, seal 14,15 is combined by polyamine fat or acrylonitrile-butadiene rubber yx type circle and nylon back-up ring, the cone angle of stop valve 27 is 60 °, valve journey H is generally 0.6～1.5 times of nozzle 4 bores, can regulate block stamp free travel H by packing ring 13
1Be generally 0.5～0.6 times of nozzle 4 bores.Energy delivery mechanisms belongs to prior art, and mainly by power transmission shaft 9, driving sleeve 10, the high parts such as pad 11 and lower contact 12 of regulating of anvil constitute.
In the above-mentioned part, the material of nozzle 4 is carbide alloy or high-speed steel, and other metalwork is processed by quenched and tempered steel.Valve 5, the percussion friction position of lifting hammer piston 6 and block stamp 7 vertex of a cones and tup should quenching and hard chrome plating or spraying plating carbide alloy.
The conventional bore impactor of the utility model in can be used for the probing of geological core drilling and hydrological well, but the high-power impactor used of project engineering drilling well and oil drilling also.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88208964 CN2033856U (en) | 1988-07-23 | 1988-07-23 | Valve Control Mechanism of Injection Suction Impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88208964 CN2033856U (en) | 1988-07-23 | 1988-07-23 | Valve Control Mechanism of Injection Suction Impactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033856U true CN2033856U (en) | 1989-03-08 |
Family
ID=4842685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88208964 Expired - Lifetime CN2033856U (en) | 1988-07-23 | 1988-07-23 | Valve Control Mechanism of Injection Suction Impactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094577A (en) * | 2010-12-09 | 2011-06-15 | 刘国经 | Core valve jet-suction hydraulic down-the-hole (DTH) hammer |
| CN110173211A (en) * | 2019-06-21 | 2019-08-27 | 刘国经 | Using the jet absorption type hydraulic hole drilling hammer of disjunctor injection equipment |
| CN114146742A (en) * | 2021-12-23 | 2022-03-08 | 安图实验仪器(郑州)有限公司 | High-precision multi-plunger combined-row liquid transfer device |
-
1988
- 1988-07-23 CN CN 88208964 patent/CN2033856U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094577A (en) * | 2010-12-09 | 2011-06-15 | 刘国经 | Core valve jet-suction hydraulic down-the-hole (DTH) hammer |
| CN110173211A (en) * | 2019-06-21 | 2019-08-27 | 刘国经 | Using the jet absorption type hydraulic hole drilling hammer of disjunctor injection equipment |
| CN110173211B (en) * | 2019-06-21 | 2020-09-01 | 刘国经 | Jet-suction type hydraulic down-the-hole hammer adopting conjoined injection mechanism |
| CN114146742A (en) * | 2021-12-23 | 2022-03-08 | 安图实验仪器(郑州)有限公司 | High-precision multi-plunger combined-row liquid transfer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |