CN202745889U

CN202745889U - Hydraulic support operating valve

Info

Publication number: CN202745889U
Application number: CN 201220340374
Authority: CN
Inventors: 刘中文; 朱延玉
Original assignee: FUXIN HONGXIN MACHINERY MANUFACTURING Co Ltd
Current assignee: FUXIN HONGXIN MACHINERY MANUFACTURING Co Ltd
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2013-02-20
Anticipated expiration: 2022-07-16

Abstract

The utility model belongs to hydraulic elements, in particular relates to a hydraulic support operating valve. Valve core spare parts are changed into valve core assembly, a valve rod (26) is arranged in a valve body (6), the left end of the valve rod (26) is arranged in a center hole in a joint (19) in a penetrating manner, a check ring VI (20) and an O-shaped ring VII (21) are arranged between the joint (19) and the valve rod (26) for sealing, springs (16) are arranged on an outer periphery of the valve rod (26) between the right end surface of the joint (19) and a circular bead of the valve rod (26), a rectangular ring (15) is arranged between the valve rod (26) and the valve body (6) for sealing, a valve sleeve (14) is sheathed on the outer periphery of the right end of the valve rod (26), a check ring III (10), an O-shaped ring IV (11) and an O-shaped ring III (9) are respectively arranged between the valve rod (26) and a valve sleeve (14) for sealing, the circular bead at the right end of the valve sleeve (14) leans against the circular bead in an inner bore of the valve body (6) for limiting, and an ejector rod (1) is arranged in a hole in the right end of the valve rod (26) in a penetrating manner. The hydraulic support operating valve is convenient to assemble, simple in technique, convenient to maintain underground, the liquid return resistance can be effectively lowered, and the working efficiency of a hydraulic system can be improved.

Description

Hydraulic chock running valve

Technical field

The utility model belongs to Hydraulic Elements, particularly a kind of hydraulic chock running valve.

Background technology

Control valve is the Hydraulic Elements of the operating mechanism's action of control hydraulic support and commutation, consequence is arranged in hydraulic bracket control system, the employed medium of hydraulic bracket control system is emulsion, because subsurface environment is very abominable, there are a large amount of corrosive substances and coal dust, hydraulic system is very easily contaminated, causes the Hydraulic Elements fault rate high, just brings white elephant to service work.The spool of the control valve that uses now is the bulk parts structure, its each part that forms spool is independently part, the workpeople is when dismounting, get easily assembly relation wrong, and part is lost easily, secondly into hydraulic system can be brought the impurity such as coal dust without cleaning condition when reinstalling after part is pulled down in the down-hole.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, and spool is black box, and assembling and maintenance be hydraulic chock running valve very easily.

The technical scheme that the utility model technical solution problem adopts is: hydraulic chock running valve comprises valve body, joint, operating mechanism, soket head cap screw, be characterized in changing core assembly into by the spool loose mail, core assembly is by valve rod, spring, rectangular loop, valve pocket, back-up ring one, O shape circle one, back-up ring three, O shape circle four, back-up ring two, O shape circle three, O shape circle two, push rod, back-up ring six, O shape circle seven forms, valve rod places valve body hole, the valve rod left end is installed in the centre bore of joint, back-up ring six is housed between joint and the valve rod and O shape is enclosed seven sealings, on the valve rod excircle between joint right side and the valve rod shoulder spring is housed, the rectangular loop sealing is housed between valve rod and the valve body, be set with valve pocket on the valve rod right-hand member excircle, back-up ring three is housed respectively between valve rod and the valve pocket, O shape circle four, back-up ring two, three sealings of O shape circle, valve pocket right-hand member shoulder leans against the endoporus shoulder upper limit of valve body, the valve rod right-hand member installs push rod in the hole, O shape is housed between push rod and the valve rod encloses two sealings.

The beneficial effects of the utility model are: after hydraulic chock running valve changes core assembly into by the spool loose mail, can integral body pack into valve opening or take out, be convenient to assembling, technique is more simple, and maintenance of underground is convenient, under the maintenance profile identical with valve of the same type, increased in the valve by architecture advances that to cross liquid level everywhere long-pending, improved and crossed the liquid ability, valve internal liquid return mouth and working hole are adjacent, effectively reduce time liquid resistance, improved the operating efficiency of hydraulic system.

Description of drawings

Specify with embodiment below in conjunction with accompanying drawing.

Fig. 1 is that figure cuts open in hydraulic chock running valve structure and office.

Among the figure, the 1-push rod; The 2-swivel nut; The 3-soket head cap screw; 4-back-up ring one; 5-O shape circle one; The 6-valve body; 7-O shape circle two; 8-back-up ring two; 9-O shape circle three; 10-back-up ring three; 11-O shape circle four; 12-back-up ring four; 13-O shape circle five; The 14-valve pocket; The 15-rectangular loop; The 16-spring; 17-back-up ring five; 18-O shape circle six; The 19-joint; 20-back-up ring six; 21-O shape circle seven; The 22-core assembly; The 23-operating mechanism; 24-back-up ring seven; 25-O shape circle eight; The 26-valve rod.

The specific embodiment

Embodiment, with reference to accompanying drawing 1, the left end of 6 two endoporus of valve body of hydraulic chock running valve is thread connecting joint 19 respectively, encloses 6 18 sealings with back-up ring 5 17 and O shape between joint 19 and the valve body 6.In 6 two endoporus of valve body core assembly 22 is housed, core assembly 22 by valve rod 26, spring 16, rectangular loop 15, valve pocket 14, back-up ring 1, O shape enclose 1, back-up ring 28, O shape enclose 39, back-up ring 3 10, O shape enclose 4 11, O shape encloses 27, back-up ring 6 20, O shape enclose 7 21, push rod 1, swivel nut 2 form.Valve rod 26 places respectively the hole of valve body 6, valve rod 26 left ends are installed in the centre bore of joint 19, dress back-up ring 6 20 and O shape are enclosed 7 21 sealings between joint 19 and the valve rod 26, pocketed springs 16 on valve rod 26 excircles between joint 19 right sides and valve rod 26 shoulders is equipped with rectangular loop 15 sealings between valve rod 26 and the valve body 6.Suit valve pocket 14 on the valve rod 26 right-hand member excircles, dress back-up ring 4 12 and O shape circle five sealings between valve body 6 and valve pocket 14, fill respectively between valve rod 26 and the valve pocket 14 that back-up ring 3 10, O shape enclose 4 11, back-up ring 28, O shape enclose 39 sealings, valve pocket 14 right-hand member shoulders lean against valve body 6 endoporus shoulder upper limits.Valve rod 26 right-hand member inner hole threads connect push rod 1, back-up ring 7 24 and O shape are housed between valve rod 26 and the push rod 1 enclose 8 25 sealings.Swivel nut 2 is threaded on the valve body 6, back-up ring 1 and O shape are housed between valve body 6 and the swivel nut 2 enclose one 5 sealings, dress back-up ring 7 24 and O shape are enclosed 8 25 sealings between swivel nut 2 and the push rod 1, O shape is housed between push rod 1 and the valve rod 26 encloses 27 sealings, valve body 6 right sides connect with soket head cap screw 3 is equipped with operating mechanism 23, and the collision block of operating mechanism 23 is connected with push rod 1 contact.

The hydraulic chock running valve operating principle is: when normal operation, the handle of operating mechanism 23 is horizontal and is closed condition, the operator makes push rod 1 band ovable valve stem 26 move to left when the handle of operating mechanism 23 is upwards promoted, at this moment inlet is opened with the A mouth and is connected, high pressure liquid constantly enters operating mechanism, make operating mechanism's working method action in accordance with regulations, when operating mechanism need to stop, the handle of operating mechanism 23 recovered the centre position again.Valve pocket 14, valve rod 26 are under the pressure-acting of spring 16, move to right to closed condition, this moment, inlet cut off with work A mouth, finished the one action circulation, principle is identical when the handle of operating mechanism 23 promotes downwards, and just inlet and the B mouth of working is communicated with and cut-out.

Claims

1. hydraulic chock running valve, comprise valve body (6), joint (19), operating mechanism (23), soket head cap screw (3), it is characterized in that changing core assembly into by the spool loose mail, core assembly is by valve rod (26), spring (16), rectangular loop (15), valve pocket (14), back-up ring one (4), O shape circle one (5), back-up ring three (10), O shape circle four (11), back-up ring two (8), O shape circle three (9), O shape circle two (7), push rod (1), back-up ring six (20), O shape circle seven (21) forms, valve rod (26) places valve body hole (6), valve rod (26) left end is installed in the centre bore of joint (19), seven (21) sealings of back-up ring six (20) and O shape circle are housed between joint (19) and the valve rod (26), on valve rod (26) excircle between joint (19) right side and valve rod (26) shoulder spring (16) is housed, rectangular loop (15) sealing is housed between valve rod (26) and the valve body (6), be set with valve pocket (14) on valve rod (26) the right-hand member excircle, between valve rod (26) and the valve pocket (14) back-up ring three (10) is housed respectively, O shape circle four (11), back-up ring two (8), three (9) sealings of O shape circle, valve pocket (14) right-hand member shoulder leans against the endoporus shoulder upper limit of valve body (6), valve rod (26) installs push rod (1) in the right-hand member hole, and two (7) sealings of O shape circle are housed between push rod (1) and the valve rod (26).