CN201166148Y

CN201166148Y - Integral drill hydraulic operated valve

Info

Publication number: CN201166148Y
Application number: CNU2008200526746U
Authority: CN
Inventors: 成瑞龙
Original assignee: XIANGTAN RUILONG HYDRAULIC CO Ltd
Current assignee: XIANGTAN RUILONG HYDRAULIC CO Ltd
Priority date: 2008-03-27
Filing date: 2008-03-27
Publication date: 2008-12-17
Anticipated expiration: 2018-03-27

Abstract

The utility model relates to a hydraulic operation valve for drills, belonging to the hydraulic valve technical field, which resolves the defects of the prior plate type valves such as large volume, high weight, high oil pass resistance and unreliable positioning device, to provide an improved drill valve. The valve body of the drill valve is an integral shell element, whose oil channel has a rectangle section, wherein the body of the positioning device of the drill valve and the slide valve are integrated, the body of the positioning device is one end of the slide valve, a steel ball in the slot at the outer surface of the body of the positioning device is radial locked by a small spring, a cover is provided outside the small spring, the slide valve at the axial baffle port is provided with two semicircle key clips. The drill valve has low weight, low material consumption, reduced production cost, increased area of the oil channel, reduced resistance in the oil channel, reduced pressure loss in the oil channel and improved axial positioning reliability of the slide valve.

Description

Integrated type rig hydraulically operated valve

Technical field

The utility model belongs to the hydrovalve technical field, is specifically related to a kind of rig hydraulically operated valve.

Background technique

The rig control valve is the crux parts of drilling rig hydraulic system, is widely used in the geological mining industry.Using more rig valve at present is the chip valve, adopts linkage part to tighten connection between its oil-feed valve body, each Reversing valve plate and the oil return valve body, adopts the sealing of O type circle, bores horizontal oil-through hole on the every valve body, in order to the runner in each valve block of UNICOM; The positioning work piece main body of spool valve end is an independent component, is tightened on the guiding valve with socket head screw, and its working principle is that the steel ball that adopts locking spring to hold tightly in the positioning work piece main body outer surface groove is realized the location.The rig control valve of this structure exists following deficiency: the volume of (1) chip valve is big, and weight is big, and the valve body consumptive material is many; (2) runner is the circular hole passage, and oil-through hole is little, and it is big to cross oily resistance, and the pressure loss is big, and is not energy-conservation, and if simply strengthen the oil-through hole diameter tension force between valve block is strengthened, cause leakage of oil between sheet easily; (3) the valve body manufacturing procedure is many, and operation is disperseed, and error is big; (4) spring of positioning work piece exposes, and rig is field work, and environment is poor, thereby the easy corrosion fracture of spring, and, have loosening during attachment screw because of after the guiding valve repeatable operation, cause the location inaccurate, even also the accident that the positioning work piece main body comes off can take place, whole rig can not be worked.

Summary of the invention

The purpose of this utility model is at above shortcomings in the prior art, and a kind of follow-on integrated type rig hydraulically operated valve is provided.

The utility model is to realize above-mentioned purpose by the following technical solutions: this integrated type rig hydraulically operated valve, comprise valve body, guiding valve, positioning work piece main body, its feature is: valve body is an integral housing member, and its oil duct is that cross section is the passage of rectangle.

Described positioning work piece main body and guiding valve are integrated members, and the positioning work piece main body is an end of guiding valve; Adopt the radially interior steel ball of lock retainer main body outer surface groove of little spring, little spring is provided with outer cover outward, and a guiding valve that is positioned at axial retaining mouthful place is provided with two woodruff key clamps.

Because valve body of the present utility model adopted overall structure, cancelled the linkage part between the former valve block, make whole loam core after inner oil duct hollow out as far as possible, valve weight alleviates greatly, raw material reduce, and have saved cost; And inner oil duct cross-section area increase, cross oily resistance and reduce greatly; The plain grinding operation of former chip valve, the cancellation of most of pincers worker drilling operating, and integrated type valve body processing work in-process is once finished in the heart, course of working is simplified, and has reduced the workpiece running, has reduced the production management cost.Positioning work piece main body and guiding valve are used lathe in machining after adopting monolithic construction, good processing accuracy, and cancelled screw connecting mode, avoided the generation of screw loosening phenomenon; The guiding valve axial limiting adopts two woodruff key clamps, and Location accuracy improves, and woodruff key clamp employing stamping part, and cost is low, and easy accessibility; Steel ball adopts little spring radially to lock, and covers with outer cover, has prevented that spring from causing the generation of fracture accident because of environmental attack.

Description of drawings

Fig. 1 is the utility model embodiment's a sectional view;

Fig. 2 is the sectional view of the utility model embodiment's valve body;

Fig. 3 is that the A-A of valve body shown in Figure 2 is to sectional view;

Embodiment

Referring to Fig. 1, Fig. 2 and Fig. 3, the rig hydraulically operated valve that this reality is novel comprises valve body 1, guiding valve 2, positioning work piece main body 3, and as seen from the figure, valve body 1 is an integral housing member, and its oil duct 4 is that cross section is the passage of rectangle.

Referring to Fig. 1, are integrated members as the positioning work piece main body 3 and the guiding valve 2 of the usefulness of guiding valve 2 axially locating, positioning work piece main body 3 promptly is an end of guiding valve 2; The positioning work piece of present embodiment adopts radially interior four steel balls 5 evenly placing of lock retainer main body 3 outer surface grooves of four little springs 6, is provided with outer cover 7 outside the little spring 6, and outer cover 7 makes little spring avoid the corrosion of external environment condition like this.The guiding valve 2 that is positioned at axial retaining mouthful 9 places is provided with two woodruff key clamps 8, can be used as the usefulness of the axial limiting of guiding valve 2.

Claims

1, a kind of integrated type rig hydraulically operated valve comprises valve body (1), guiding valve (2), positioning work piece main body (3), it is characterized in that: described valve body (1) is an integral housing member, and its oil duct (4) is that cross section is the passage of rectangle.

2, integrated type rig hydraulically operated valve according to claim 1 is characterized in that: described positioning work piece main body (3) is an integrated member with guiding valve (2), and positioning work piece main body (3) is an end of guiding valve (2); Adopt the radially interior steel ball (5) of lock retainer main body (3) outer surface groove of little spring (6), little spring (6) is outer to be provided with outer cover (7), is positioned at the axial guiding valve of mouthful (9) locating (2) that keeps off and is provided with two woodruff key clamps (8).