CN2303962Y - Jamming-proof valve for hydraulic impact revolving mechanism - Google Patents
Jamming-proof valve for hydraulic impact revolving mechanism Download PDFInfo
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- CN2303962Y CN2303962Y CN97208079U CN97208079U CN2303962Y CN 2303962 Y CN2303962 Y CN 2303962Y CN 97208079 U CN97208079 U CN 97208079U CN 97208079 U CN97208079 U CN 97208079U CN 2303962 Y CN2303962 Y CN 2303962Y
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Abstract
The utility model relates to a jamming-proof valve for a hydraulic impact revolving mechanism. A main valve core which is connected with a spring and is provided with a ring groove is arranged in a main valve body, the matching part of the main valve body and the main valve core is correspondingly provided with ring grooves O, B, P and A, the bottom of the main valve is provided with an oil controlling hole k, the middle of one end of the main valve core is provided with a damping hole f communicated with the oil controlling hole k, and the other end is communicated with a cavity formed from a conical valve seat, a pilot valve body and a plug through a spring cavity; a conical valve core communicated with the spring is matched with the conical valve seat, one end of a spring seat is connected with the spring and the other end is connected with a regulating screw rod with a regulating handle and a blocking plug. The utility model has the advantages of compact structure, high proof reaction speed, high reliability, low cost and convenient installation and maintenance.
Description
The utility model relates to the anti-sticking pricker device of hydraulic shock swirl gear.
At present domestic and international hydraulic rock drill carriage and down-the-hole drill generally all are provided with anti-sticking pricker device.Come anti-sticking as the all-hydraulic drill carriage of AtlasCopco by a pilot operated directional control valve and a reduction valve, a throttle valve, the all-hydraulic drill carriage of homemade CGJS-2YB type comes anti-sticking by two pilot operated directional control valves; These several anti-sticking pricker devices all have certain anti-sticking effect in actual applications, but its used valve is two or three, and are relatively poor for the sensitivity of anti-sticking pricker reaction, influence the reliability of anti-sticking reaction velocity and drill carriage work.
The utility model is intended a kind of hydraulic shock swirl gear anti-sticking valve that can overcome above-mentioned defective of research and design, to reach the purpose that the anti-sticking reaction velocity is fast, highly sensitive, element is few.
For reaching above-mentioned purpose, as Fig. 1, the utility model is designed to a pilot change over valve, promptly in main valve body 14, settle spring 13, main valve plug 12, have annular groove on the main valve plug 12, correspondingly on the main valve body 14 and main valve plug 12 part that matches have an annular groove O, B, P, A, have control oilhole K in the main valve bottom, the one end middle part of main valve plug 12 has and controls the damping hole f that oilhole K communicates, the other end is by spring chamber 11 and by conical valve base 8, the chambeies 9 that guide's valve body 6 and obstruction 10 constitute communicate, chamber 9 one ends even stop up 10, one end connects conical valve base 8, the poppet valve core 7 and the conical valve base 8 that are connected with spring 5 match, seal also and poppet valve core 7 by spring seat 4, guide's valve body 6 constitutes low pressure oil pocket 15, and chamber 15 and oil sump tank communicate, and an end of spring seat 4 connects spring, the other end and band regulating handle 1, the adjusting screw rod 2 of obstruction 3 links to each other, and the active force of 5 pairs of poppet valve cores 7 of spring is regulated by adjusting screw rod 2; The pressure that comes the rotation pricker is through the bottom of K mouth by main valve plug 12, act on the poppet valve core 7 through damping hole f, spring chamber 11, chamber 9, raise when changeing pricker pressure, the power that acts on poppet valve core 7 is during greater than the compressive force of spring 5, cone valve 7 is opened, fluid through the chamber 15 to the oil sump tank oil return.Because the effect of damping hole f, the pressure of main valve plug 12 oil outlet ends be less than the pressure of oil inlet end, main valve plug 12 moves to oil outlet end, P hole and A hole are connected, O hole and B hole are connected, thereby have changed the direction that advances the oil circuit oil inlet and outlet, reach the purpose that makes the hydraulic gate rollback.When commentaries on classics pricker pressure is lower than the preset pressure of pressure adjusting spring 5, poppet valve core 7 is closed conical valve base 8, main valve plug 12 moves to oil inlet end under the effect of the spring force of the power of surging of balance and spring 13, and P hole and B hole, O hole and A hole are reclosed, and advances oil cylinder 18 to return to original working condition.
Because the utility model is a pilot change over valve, be an overall structure, thereby its anti-sticking reaction velocity is fast, the reliability height, compact structure, cost is low, and is convenient for installation and maintenance.
With the implementation situation the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model application example schematic diagram; The 16-reduction valve, 17-anti-sticking valve, 19-series flow control valve, 20-rotary motor.
The pressure that comes the rotation pricker is through the bottom of K mouth by main valve plug 12, act on the poppet valve core 7 through damping hole f, spring chamber 11, chamber 9, raise when changeing pricker pressure, the power that acts on poppet valve core 7 is during greater than the compressive force of spring 5, cone valve 7 is opened, fluid through the chamber 15 to the oil sump tank oil return.Because the effect of damping hole f, the pressure of main valve plug 12 oil outlet ends be less than the pressure of oil inlet end, main valve plug 12 moves to oil outlet end, P hole and A hole are connected, and O hole and B hole are connected, and advance oil cylinder 18 automatic rollbacks, light simultaneously the impact helps to change pricker and in time gets rid of card pricker fault.When commentaries on classics pricker pressure is lower than the preset pressure of pressure adjusting spring 5, poppet valve core 7 is closed conical valve base 8, main valve plug 12 moves to oil inlet end under the effect of the spring force of the power of surging of balance and spring 13, P hole and B hole, O hole and A hole are reclosed, the anti-sticking oil circuit recovers original turnover direction, advances oil cylinder 18 also to return to original working condition.
Claims (1)
1. the anti-sticking valve of a hydraulic shock swirl gear, it is characterized in that: in main valve body (14), settle spring (13), main valve plug (12), main valve plug has annular groove on (12), correspondingly main valve body (14) is gone up and main valve plug (12) matches and partly has annular groove O, B, P, A, have control oilhole K in the main valve bottom, the one end middle part of main valve plug (12) has and controls the damping hole f that oilhole K communicates, the other end is by spring chamber (11) and by conical valve base (8), the chamber (9) that guide's valve body (6) and obstruction (10) constitute communicates, chamber (9) one ends connect obstruction (10), one end connects conical valve base (8), the poppet valve core (7) and the conical valve base (8) that are connected with spring (5) match, seal also and poppet valve core (7) by spring seat (4), guide's valve body (6) constitutes low pressure oil pocket (15), chamber (15) and oil sump tank communicate, one end of spring seat (4) connects spring, the other end and band regulating handle (1), the adjusting screw rod (2) that stops up (3) links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97208079U CN2303962Y (en) | 1997-03-04 | 1997-03-04 | Jamming-proof valve for hydraulic impact revolving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97208079U CN2303962Y (en) | 1997-03-04 | 1997-03-04 | Jamming-proof valve for hydraulic impact revolving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2303962Y true CN2303962Y (en) | 1999-01-13 |
Family
ID=33927641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97208079U Expired - Fee Related CN2303962Y (en) | 1997-03-04 | 1997-03-04 | Jamming-proof valve for hydraulic impact revolving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2303962Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966620A (en) * | 2012-11-19 | 2013-03-13 | 无锡市京锡冶金液压机电有限公司 | Anti-jamming valve structure of hydraulic system |
| CN110966277A (en) * | 2018-09-30 | 2020-04-07 | 江苏凯亚环保科技有限公司 | Overflow valve |
-
1997
- 1997-03-04 CN CN97208079U patent/CN2303962Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966620A (en) * | 2012-11-19 | 2013-03-13 | 无锡市京锡冶金液压机电有限公司 | Anti-jamming valve structure of hydraulic system |
| CN110966277A (en) * | 2018-09-30 | 2020-04-07 | 江苏凯亚环保科技有限公司 | Overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |