CN201516591U - Hydraulic impact wrench - Google Patents
Hydraulic impact wrench Download PDFInfo
- Publication number
- CN201516591U CN201516591U CN2009202284695U CN200920228469U CN201516591U CN 201516591 U CN201516591 U CN 201516591U CN 2009202284695 U CN2009202284695 U CN 2009202284695U CN 200920228469 U CN200920228469 U CN 200920228469U CN 201516591 U CN201516591 U CN 201516591U
- Authority
- CN
- China
- Prior art keywords
- valve
- switch
- block
- processed
- impact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a hydraulic impact wrench which comprises a driving mechanism and a wrench mechanism that are connected. The driving mechanism is sequentially provided with an over-current handle, a switch throttle valve assembly, a reversing valve assembly and a seawater or fresh water hydraulic motor from bottom to top. The switch throttle valve assembly is provided with a trigger. The seawater or fresh water hydraulic motor is connected with the wrench mechanism. The tool directly uses the seawater or freshwater as working medium for performing installing/detachment operation of threaded connector, is mainly used for the fields of undersea maintenance of ship, underwater building, lake and river project, etc., and furthermore has the characteristics of high reliability, adjustable output torque, no restriction to the depth of underwater operation, wide operation range, high efficiency, good environment compatibility.
Description
Technical field
The utility model relates to underwater operation tool, is specifically related to a kind of hydraulic impact wrench.
Background technology
Impact wrench is mainly used in the installation and removal of threaded connector, and increasing work efficiency and assembly quality, to reduce labor intensity, fields such as maintenance and submerged structure all have widely and use under the sea of boats and ships.
Underwater operation impact wrench the earliest generally is to be converted with electric tool by the land, considers requirements such as water-stop, electric insulation, pressure compensation, the instrument more complicated after the repacking, heaviness, and reliability and security are not high.Be divided into electronic, pneumatic and three kinds of patterns of hydraulic pressure according to the type of drive impact wrench.The Pneumatic immpacting spanner need not be considered the problem of electric insulation, and job security is improved.Big, the inefficient problem of ubiquity air consumption when pneumatic tool is worked under water; And because operating pressure is low, resistance is bigger again in the water, so its working depth is more shallow.Traditional hydraulic tool be with mineral type hydraulic oil as working media because mineral type hydraulic oil is incompatible with water, system must be designed to closed circulation system, thereby the drawback that exists some to be difficult to overcome, and mainly shows as:
● to the seal request strictness, in case the mutual seepage of hydraulic oil and water, this not only pollutes the environment, and has also quickened the damage of system element, reduces tool reliability and service life greatly, and when big degree of depth operation, this seepage is can take place inevitably;
● the hydraulic pressure oil viscosity is big, and its sticking warm, sticking pressure coefficient is big, and along with the expansion of depth of implements and scope, the linear loss of system's oil-feed and oil return pipe increases; The oil pressure underwater operation tool of producing as Stanley then need particular design, and efficient is lower when surpassing 150m.
● owing to be closed system, thereby need the increase device to come the balance water depth pressure, increased the complexity of system.
The utility model content
The purpose of this utility model is to propose a kind of hydraulic impact wrench, directly carries out operation with seawater or fresh water as working media, has reliability height, the underwater operation degree of depth is unrestricted, job area is wide, efficient is high, Environmental compatibility is good characteristics.
A kind of hydraulic impact wrench, comprise the driving mechanism 1.1 and the spanner mechanism 1.2 of joining, driving mechanism 1.1 is followed successively by overcurrent handle 2.6, switch throttling valve module 2.4, reversing valve assembly 2.3 and seawater or fresh water hydraulic motor 2.1 from the bottom up, on the switch throttling valve module 2.4 trigger 2.5 is housed, seawater or fresh water hydraulic motor 2.1 connect spanner mechanism 1.2.
Technique effect of the present utility model is embodied in: the utility model hydraulic impact wrench is a working media with seawater or fresh water directly, realize the operation of double thread connector by the fluid motor-driven beater mechanism, Environmental compatibility is good, free from environmental pollution, simultaneously can not enter the reliability that system reduces work because of water yet, the underwater operation degree of depth is unrestricted, job area is wide, and instrument has only a water inlet pipe to be connected with power source, and the flow disturbance of making moist during underwater operation is little.The utility model adopts modularized design, and each assembly is relatively independent, and can be used as spare part, thereby makes that average time for repair of breakdowns MTTR is reduced, and has improved on-the-spot maintainability.The utility model impact wrench adopts the sea water hydraulic motor in the ocean, adopt the fresh water hydraulic motor in fresh water environments such as lake, satisfies the field condition of seawater or the various complexity of fresh water underwater operation.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model embodiment.
Fig. 2 is the driving mechanism structure schematic diagram of the utility model embodiment.
Fig. 3 is the switch throttling valve module structural representation of the utility model embodiment.
Fig. 4 is the reversing valve assembly structural representation of the utility model embodiment.
Fig. 5 is the spanner mechanism structure schematic diagram of the utility model embodiment.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Moment of torsion adjustable type sea water hydraulic impact wrench shown in Figure 1 adopts modularized design, and integral body is divided into the assembly of function opposite independent, is made up of driving mechanism 1.1 and spanner mechanism 1.2, and driving mechanism 1.1 connects spanner mechanisms 1.2,1.2 operations of driving spanner mechanism.
Driving mechanism 1.1 structures mainly are made up of sea water hydraulic motor 2.1, reversing valve assembly 2.3, switch throttling valve module 2.4, overcurrent handle 2.6, trigger 2.5 and hydraulic quick coupler 2.7 etc. as shown in Figure 2.Overcurrent handle 2.6 be hollow-core construction as water inlet pipe, the lower end of handle 2.6 is provided with hydraulic quick coupler 2.7, connects power source by hydraulic quick coupler, the upper end is provided with switch throttling valve module 2.4, reversing valve assembly 2.3 and sea water hydraulic motor 2.1 successively.Trigger 2.5 is arranged on switch throttling valve module 2.4 sides, is used for the on off state of gauge tap choke valve assembly 2.4.
Fig. 3 is a switch throttling valve module structural representation, mainly plays switch control and regulates the spanner rotating speed.Switch spool 3.7 is housed in the switch valve piece 3.12, and switch spool 3.7 can adopt forms such as ball valve, cone valve, flap type.Adopt rotatable steel ball among the embodiment, the left side of steel ball 3.7 is equipped with throttle valve seat 3.10 in switch valve piece 3.12, the inside of throttle valve seat 3.10 is provided with spring push-rod 3.8 and back-moving spring 3.9, an end in contact steel ball 3.7 of spring push-rod, and the other end connects back-moving spring 3.9.The left side of throttle valve seat 3.10 is provided with throttling valve core 3.2, the left end of throttling valve core 3.2 stretches out valve end cap 3.11 backs and connects rotational speed regulation handwheel 3.1, be between valve end cap 3.11 and 3.12 of switch valve pieces, throttling valve core 3.2 and the valve end cap 3.11 and be threaded, rotation rotational speed regulation handwheel 3.1, throttling valve core 3.2 can be in valve piece 3.12 move left and right.Space that throttling valve core 3.2 and throttle valve seat are 3.10 forms throttle orifice, and throttling valve core 3.2 moves to right near throttle valve seat 3.10, and the throttle orifice aperture reduces, otherwise increases, and realizes adjusting to flow by the size that changes this throttle orifice.Also have intake tunnel in the switch valve piece 3.12, intake tunnel is connected with throttle orifice.Have into water intermediate flow channel on the throttle valve seat 3.10, this runner one end is communicated with throttle orifice, and the other end is by in the switch valve port.The right side of valve piece 3.12 inherent steel balls 3.7 is equipped with switch valve seat 3.5 and pushing rod sleeve 3.4 successively, the inside of pushing rod sleeve 3.4 and switch valve seat 3.5 is provided with push rod 3.6, one end in contact steel ball 3.7 of push rod 3.6, the other end stretches out pushing rod sleeve 3.4 and joins with connector 3.3, and connector 3.3 is used to connect trigger 2.5.Steel ball 3.7 is the switch valve port with the contact position of switch valve seat 3.5.Be processed with the water outlet intermediate flow channel on the switch valve seat 3.5.Have exhalant canal in the valve piece 3.12, it is connected with the water outlet intermediate flow channel of switch valve seat 3.5.Press trigger 2.5, promote push rod 3.6, push rod 3.6 promotes steel ball 3.7 and is moved to the left, and the switch valve port is opened, the water of water inlet intermediate flow channel enters reversing valve assembly 2.6 through water outlet intermediate flow channel, exhalant canal, flows into motor through reversing valve assembly and drives the sea water hydraulic motor operations; Unclamp trigger 2.5, under the effect of back-moving spring 3.9, steel ball 3.7, push rod 3.6 reset, and the switch valve port is closed, and stops to drive hydraulic motor.The required pretightning force of the threaded connector of different size is different, for improving the adaptability at the utility model complex job scene under the sea, spanner is designed to the moment of torsion adjustable type.On the basis of switch valve, increased choke valve, both combine and constitute new switch throttling valve module, by rotation rotational speed regulation handwheel 3.1, drive throttling valve core 3.2 motions, thereby change the throttle orifice aperture, control enters the water under high pressure flow of motor, and then control motor rotary speed and the speed when initiatively impact block 5.7 impacts, thereby realizes the adjusting of impact wrench output torque.
For realizing the positiver sealing under high pressure of switch valve, on throttle valve seat 3.10, be processed with flowing hole, it is connected with intermediate flow channel on the throttle valve seat 3.10, direct high pressure water flows in the left hemisphere face and the cavity between the throttle valve seat 3.10 of steel ball 3.7, is applied with hydraulic coupling to the right on the left hemisphere face of water under high pressure to steel ball 3.7.When the switch valve port is closed, because the contact area of left hemisphere face and water under high pressure is greater than right hemisphere face, therefore to the right hydraulic coupling greater than the suffered hydraulic coupling left of second half sphere, and when water under high pressure pressure is high more, difference with hydraulic coupling left is big more to the right for this, steel ball 3.7 is big more with switch valve seat 3.5 contact stress, realizes positiver sealing; After the switch valve port was opened, steel ball 3.7 two halves sphere compression areas equated that the fluid pressure balance of all directions at this moment, be held open state, only need act on pressure and the suffered hydraulic coupling of push rod that trigger 2.5 less motive forces are used for balance back-moving spring 3.9.Because the effect of hydraulic coupling has to the right realized the positiver sealing of switch valve port, but makes that also required motive force is very big when opening, and relax this contradiction, then need design a hydraulic coupling left, offsets part hydraulic coupling to the right.Adopted among the embodiment water under high pressure has been introduced the cavity that is communicated with between push rod 3.6 and the pushing rod sleeve 3.4, in order to introduce water under high pressure, on switch valve piece 3.12, be processed with runner in addition, the one end communicates with intake tunnel, the other end is communicated with the cavity between push rod 3.6 and the pushing rod sleeve 3.4, the water under high pressure that enters this cavity acts on hydraulic coupling left on push rod 3.6, only need the balance hydraulic coupling and the pressure of the difference between the hydraulic coupling and back-moving spring 2.3 left to the right during unlatching.
Fig. 4 is the reversing valve assembly structural representation, is mainly used in the control of realization to the liquid flow path direction, thereby turning to of control sea water hydraulic motor 2.1 drives spanner mechanism 1.2 double thread securing members and adorn/tear open operation.Conversion valve block 4.1 inside are processed with a through hole and are used for installing commutation valve pocket 4.3, on the sidewall of through hole, be processed with chute C, D, E, and crossed chute D and communicate, crossed chute C with the exhalant canal of switch valve piece 3.12, E advances with sea water hydraulic motor 2.1 respectively, and outlet is connected; In addition, also be processed with flow channels G in the side of conversion valve block 4.1.Commutation valve pocket 4.3 is installed in the through hole of conversion valve block 4.1, be processed with three row's apertures on the commutation valve pocket 4.3, hole diameter is less than 1.5mm, guarantee three row's apertures respectively with conversion valve block 4.1 through holes in cross chute C, D, E are connected, adjacent cross laid O shape circle 4.7 between the chute, realizes adjacent excessively between chute with and and the external world between sealing.Reversing valve core 4.4 is installed in the commutation valve pocket 4.3, be with successively on the reversing valve core 4.4 and two Reciprocatory lattice are installed enclose 4.8 and back-moving spring 4.5, one end of spool 4.4 close back-moving springs 4.5 stretches out conversion valve block 4.1 and rivets with reversing hand wheel 4.6, be processed with " one " font boss on the conversion valve block 4.1 and be used for spacingly, reversing hand wheel 4.6 is processed with corresponding " one " font stopper slot; The other end away from reversing hand wheel 4.6 in the conversion valve block 4.1 is equipped with reversal valve end cap 4.2, and reversal valve end cap 4.2 is near commutation valve pocket 4.3, and reversal valve end cap 4.2 is realized the axial limiting of commutation valve pocket 4.3 axial location and reversing valve core 4.4.Be processed with flowing hole F on the reversal valve end cap 4.2 and be used for draining.
Figure 4 shows that impact wrench dextrorotation operation, water under high pressure is from crossing chute D through second row's aperture on the commutation valve pocket 4.3, enter reversing valve core 4.4 and the commutation valve pocket 4.3 enclose 4.8 cavity at two Reciprocatory lattice, the chute C that crosses that flows on the conversion valve block 4.1 through first row's aperture on the commutation valve pocket 4.3 enters sea water hydraulic motor 2.1 again, drive impact wrench dextrorotation operation, the water return outlet of water by motor of finishing after the merit through sea water hydraulic motor 2.1 flow to chute E, through the row of the 3rd on valve pocket aperture, from the flow channels G discharge of conversion valve block 4.1.When needs are realized left-handed operation, operation reversing hand wheel 4.6 moves right, rotate then about reversing hand wheel 4.6 certain angles (90 degree), make " one " font stopper slot of reversing hand wheel 4.6 and " one " font positive stop lug boss on the conversion valve block 4.1 certain dislocation be arranged, promptly limited reversing valve core 4.4 under back-moving spring 4.5 elastic force effects to left movement.At this moment, water under high pressure is from crossing chute D through the aperture on the commutation valve pocket 4.3, enter in the cavity of reversing valve core 4.4 and 4.3 formation of commutation valve pocket, enter sea water hydraulic motor 2.1 through the 3rd row's aperture, chute E on the commutation valve pocket 4.3 again, drive the left-handed operation of impact wrench, after the high pressure sea water CD-ROM drive motor was finished merit, the runner A from motor flowed out again, passed through first row's aperture that chute C flow to commutation valve pocket 4.3, entered marine greatly by flowing hole F on the reversal valve end cap 4.2.Realize the dress of its threaded fastener/tear open operation by the left and right sides rotation direction of control sea water hydraulic impact wrench.
Because the viscosity of seawater is about 1/40 of oil, reversing valve assembly has been abandoned the clearance seal form of traditional reversal valve in this reality, and adopted above-mentioned direct hermetically-sealed construction, realized that in the zero leakage that does not improve under the machining accuracy condition this reversal valve commutation is reliable, efficient is high; Originally be embodied as simultaneously to overcome and occur cutting the shearing phenomenon when lattice that are used for directly sealing enclose 4.8 process valve ports, increased commutation valve pocket 4.3, three row's apertures of processing on the commutation valve pocket 4.3, form new valve port, when commutating, lattice enclose only to be needed to enclose shear problem through the Small Holes valve port thereby solved lattice.
Fig. 5 is a spanner mechanism structure schematic diagram, and the flat key 2.2 by sea water hydraulic motor 2.1 among Fig. 2 is connected the output shaft of power transmission shaft 5.10 with sea water hydraulic motor 2.1.Power transmission shaft 5.10 is a multidiameter, and an end of axle is processed with the shaft shoulder, and a side of the shaft shoulder is equipped with journal bearing 5.12 on power transmission shaft 5.10, and an other side is equipped with end face bearing 5.14; The other end surface of power transmission shaft 5.10 is symmetrily processed with " people " font gathering sill of two symmetries.Power transmission shaft 5.10 is with impact spring 5.9 and active impact block 5.7 after assembling with journal bearing 5.12, end face bearing 5.14 from inside to outside on the power transmission shaft 5.10, impact spring 5.9 two ends contact with end face bearing 5.14 and active impact block 5.7 respectively.Initiatively be symmetrily processed with two grooves on the contact-making surface of impact block 5.7 and power transmission shaft 5.10.Overcome the pressure of impact spring 5.9, promote initiatively impact block 5.7 along power transmission shaft 5.10 to 5.14 end motions of end face bearing, " people " font gathering sill up to power transmission shaft 5.10 stretches out from active impact block 5.7 fully, two balls 5.8 are installed respectively in two " people " font gathering sills, the part of ball 5.8 is in " people " font groove, another part is in the groove of active impact block 5.7, " people " font groove plays guide effect to ball, and groove is the force part when ball is shifted; Remove external force, initiatively impact block 5.7 moves towards the other end away from end face bearing 5.14 along power transmission shaft 5.10 under the effect of spring force, ball 5.8 moves to the top from the bottom of " people " font gathering sill gradually, because it is spacing that ball 5.8 is directed to groove, thereby stop fortune fortune after outreaching, simultaneously since initiatively impact block 5.7 be subjected to ball spacing thereby also with the ball stop motion.The end that power transmission shaft 5.10 is processed with " people " font gathering sill connects driven impact block 5.1, during operation, and driven impact block 5.1 external spanner machine sleeves.Initiatively the outside of impact block 5.7 and driven impact block 5.1 is with the housing 5.4 of aluminium matter.An end that journal bearing 5.12 is housed at power transmission shaft is equipped with the bearing location end cap 5.11 that joins with housing, and bearing location end cap 5.11 cooperates realization to the axial location of bearing 5.12 radially with the shaft shoulder.
For prevent between the steel part and steel part and aluminum component between adhesive wear, with the contact-making surface place of housing 5.4 copper sheathing 5.5 and 5.6 are housed at power transmission shaft 5.10 and the junction of driven impact block 5.1, driven impact block 5.1 respectively.Copper spare directly contacts with aluminum component in seawater, and the electrochemical corrosion phenomenon is more serious, has therefore set up steel bushing 5.2 between copper sheathing 5.5 and housing 5.4.Steel bushing 5.2 has local surfaces to contact with 5.1 of driven impact blocks, lays rotary-type lattice in the face contact position and encloses 5.3, effectively insulating sea water and copper sheathing 5.5 and 5.6 and the contacting of copper sheathing and aluminium mass shell body 5.4.
The spanner mechanical work principle is: when spanner mechanism started, ball 5.8 was positioned at the top of " people " font gathering sill of power transmission shaft 5.10, and 2.1 work of sea water hydraulic motor drive power transmission shaft 5.10 and rotate, and ball 5.8 drives initiatively impact block 5.7 rotations.Under the pressure effect of spring 5.9, initiatively impact block 5.7 and driven impact block 5.1 are in engagement, and initiatively the driven impact block 5.1 of impact block 5.7 drives rotates together, and the spanner machine promptly turns nut or bolt with sleeve under the drive of driven impact block 5.1.When the end face of nut or bolt with after workpiece end face contacts, the moment of resistance sharply rises, after the moment of resistance reaches the impact critical moment, active and driven impact block all stop operating, but sea water hydraulic motor 2.1 still drives power transmission shaft 5.10 and rotates, ball 5.8 in " people " font gathering sill on the power transmission shaft 5.10 is shifted to the bottom gradually from the top, ordering about initiatively, impact block 5.7 moves right, no longer be in engagement up to active impact block 5.7 and driven impact block 5.1, initiatively impact block 5.7 is rotated further.When active impact block 5.7 forwards the position of engaging groove of the corresponding driven impact block 5.1 of its engaging tooth to, initiatively impact block 5.7 moments reach under the pressure effect of spring 5.9, produce an angular acceleration along the motion of " people " font gathering sill direction this moment, initiatively the engaging tooth of impact block 5.7 clashes into the engaging tooth of driven impact block 3.9, finishes one-shot and engagement.Ball 5.8 orders about once more initiatively and moves behind the impact block 5.7 then, breaks away from engagement.Going round and beginning again like this produces again and again collision, obtains required impact moment, makes nut screwing clamping.Along with constantly carrying out of collision, each dodges collision time and can reduce the impact moment increase.
Impacting countertorque is the reaction force of impact moment, is one of active force of moving behind the active impact block, and along with constantly carrying out of impacting, impacting countertorque can increase along with the increase of impact moment, thereby the distance that active impact block 5.7 moves backward also can increase.Original beater mechanism occurs coming off from " people " font spiral guide slot because of the excessive ball 5.8 that causes of distance that active impact block 5.7 moves backward through regular meeting; thereby make the phenomenon of impact failure; for preventing the appearance of this situation; improve the reliability of operation under this sea water hydraulic spanner sea; the utility model has been set up circlip for shaft 5.13 between the journal bearing 5.12 of power transmission shaft 5.10 and end face bearing 5.14; limited the move distance that moves behind the active impact block, prevented that ball 5.8 from coming off.
Spanner can by the throttle opening of adjusting control valve, change the impact wrench rotating speed according to the different size of threaded connector, thereby adjusting output torque, change its work capacity, realize that a kind of instrument can improve the extra large applicability of operation down to the Assembly And Disassembly of the threaded connector of plurality of specifications.
For alleviating instrument weight, housing all adopts aluminium alloy LD5, and hard anode level oxidation processes is carried out on the surface, to improve its case hardness and antiseptic property.Consider the distinctive physicochemical property of seawater, strong as corrosivity, characteristics such as poor lubricity, the instrument key components and parts all adopts super-duplex stainless steel and special high-performance engineering plastics, all adopt two phase stainless steel F225 processing as steel ball 3.7, throttling valve core 3.2 and reversing valve core 4.4, switch valve seat 3.5 and reversing cover 5.3 adopt polyether-ether-ketone PEEK to make, to improve the frictional behaviour of corrosion resistance and friction pair.
Claims (6)
1. hydraulic impact wrench, comprise the driving mechanism (1.1) and the spanner mechanism (1.2) of joining, driving mechanism (1.1) comprises overcurrent handle (2.6), switch throttling valve module (2.4), reversing valve assembly (2.3) and seawater or fresh water hydraulic motor (2.1) from the bottom up successively, trigger (2.5) is housed on the switch throttling valve module (2.4), and seawater or fresh water hydraulic motor (2.1) connect spanner mechanism (1.2).
2. hydraulic impact wrench according to claim 1 is characterized in that, the structure of described switch throttling valve module (2.4) is: switch spool (3.7) is housed in the switch valve piece (3.12); Throttle valve seat (3.10) is equipped with in the left side of switch spool (3.7), the inside of throttle valve seat (3.10) is provided with spring push-rod (3.8) and back-moving spring (3.9), one end in contact switch spool (3.7) of spring push-rod (3.8), the other end connects back-moving spring (3.9), throttling valve core (3.2) is equipped with in the left side of throttle valve seat (3.10), the left end of throttling valve core (3.2) stretches out switch valve piece (3.12) and connects rotational speed regulation handwheel (3.1), rotation rotational speed regulation handwheel (3.1), throttling valve core (3.2) can be in switch valve piece (3.12) move left and right; Space between throttling valve core (3.2) and throttle valve seat (3.10) forms throttle orifice; The right side of switch spool (3.7) is equipped with switch valve seat (3.5) and pushing rod sleeve (3.4) successively, the inside of pushing rod sleeve (3.4) and switch valve seat (3.5) is provided with push rod (3.6), one end in contact switch spool (3.7) of push rod (3.6), the other end stretches out pushing rod sleeve (3.4) and joins with trigger (2.5), and switch spool (3.7) is the switch valve port with the contact position of switch valve seat (3.5); The switch valve piece has intake tunnel and exhalant canal in (3.12), have import intermediate flow channel and water outlet intermediate flow channel in the throttle valve seat (3.10), intake tunnel, throttle orifice and water inlet intermediate flow channel are communicated with in proper order, the water inlet intermediate flow channel ends in the switch valve port, water outlet intermediate flow channel one end originates in the switch valve port, and the other end is communicated with exhalant canal.
3. hydraulic impact wrench according to claim 2, it is characterized in that, be processed with first flowing hole on throttle valve seat (3.10), first flowing hole, one end is communicated with the water inlet intermediate flow channel, and the other end is communicated with the cavity between steel ball (3.7) and the throttle valve seat (3.10); Be processed with runner on switch valve piece (3.12), the one end is communicated with intake tunnel, and the other end is communicated with the cavity between push rod (3.6) and the pushing rod sleeve (3.4).
4. according to claim 1 or 2 or 3 described hydraulic impact wrench, it is characterized in that, the structure of described reversing valve assembly is: conversion valve block (4.1) inside is processed with a through hole, be processed with first, second and third and cross chute (C, D, E) on the sidewall of through hole, first crosses chute (C) communicates second with the exhalant canal of switch valve piece (3.12), three cross chute (D, E) respectively with the advancing of seawater or fresh water hydraulic motor (2.1), outlet is connected, the adjacent mistake laid O shape circle (4.7) between the chute; Also be processed with flow channels (G) in the side of conversion valve block (4.1); Be provided with commutation valve pocket (4.3) in the conversion valve block (4.1), be processed with three row's apertures on the commutation valve pocket (4.3), first, second and third row's aperture respectively with conversion valve block (4.1) through hole in first, second and third cross chute (C, D, E) and be connected, the 3rd row's aperture also is communicated with flow channels (G); Be provided with reversing valve core (4.4) in the commutation valve pocket (4.3), upward be with two replica lattice encloses (4.8) and back-moving spring (4.5) to reversing valve core (4.4) in proper order, and an end of the close back-moving spring (4.5) of reversing valve core (4.4) stretches out conversion valve block (4.1) and rivets with reversing hand wheel (4.6); Reversal valve end cap (4.2) is housed in the conversion valve block (4.1), and reversal valve end cap (4.2) is processed with second flowing hole (F) that is communicated with first row's aperture near commutation valve pocket (4.3) on the reversal valve end cap (4.2); Reversing hand wheel (4.6) is processed with " one " font stopper slot, and conversion valve block (4.1) is processed with corresponding " one " font boss near the end of reversing hand wheel (4.6).
5. according to claim 1 or 2 or 3 described hydraulic impact wrench, it is characterized in that the structure of described spanner mechanism (1.2) is: an end of power transmission shaft (5.10) is processed with the shaft shoulder, and other end Surface Machining has " people " font gathering sill of two symmetries; One side of the shaft shoulder is equipped with journal bearing (5.12), and an other side is equipped with end face bearing (5.14), is provided with circlip for shaft (5.13) between journal bearing (5.12) and the end face bearing (5.14); Power transmission shaft (5.10) is gone up and is located to be with impact spring (5.9) near end face bearing (5.14), and the outside of impact spring (5.9) is with initiatively impact block (5.7), and initiatively impact block (5.7) is the teeth groove structure away from the end face of end face bearing (5.14); Initiatively be symmetrily processed with two grooves on the contact-making surface of impact block (5.7) and power transmission shaft (5.10); Other is provided with ball (5.8), and the part of ball (5.8) is in " people " font gathering sill, and another part is in groove; The end that power transmission shaft (5.10) is processed with " people " font gathering sill connects driven impact block (5.1), and driven impact block (5.1) is the teeth groove structure near the end face of active impact block (5.7), the external spanner machine of the other end sleeve of driven impact block (5.1); Initiatively the outside of impact block (5.7) and driven impact block (5.1) is with housing (5.4), and an end that is provided with journal bearing (5.12) at power transmission shaft (5.10) is equipped with the bearing location end cap (5.11) that joins with housing (5.4).
6. hydraulic impact wrench according to claim 5, it is characterized in that, with the contact-making surface place of junction, driven impact block (5.1) and the housing (5.4) of driven impact block (5.1) copper sheathing is housed respectively at power transmission shaft (5.10), set up steel bushing (5.2) between copper sheathing and the housing (5.4), steel bushing (5.2) has local surfaces to contact with driven impact block (5.1) face, lays rotary-type lattice in this face contact position and encloses (5.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202284695U CN201516591U (en) | 2009-09-27 | 2009-09-27 | Hydraulic impact wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202284695U CN201516591U (en) | 2009-09-27 | 2009-09-27 | Hydraulic impact wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201516591U true CN201516591U (en) | 2010-06-30 |
Family
ID=42497305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202284695U Expired - Lifetime CN201516591U (en) | 2009-09-27 | 2009-09-27 | Hydraulic impact wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201516591U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695830B (en) * | 2009-09-27 | 2011-04-20 | 华中科技大学 | Hydraulic impact wrench |
| CN103899769A (en) * | 2014-03-28 | 2014-07-02 | 单祥海 | Convenient faucet |
| TWI574797B (en) * | 2016-08-29 | 2017-03-21 | Pneumatic tool valve control structure | |
| CN107250634A (en) * | 2015-02-03 | 2017-10-13 | 奥贡承包私人有限公司 | For hydraulic pressure or the safety valve of pneumatic tool |
| CN108568773A (en) * | 2018-04-03 | 2018-09-25 | 璧垫捣 | A kind of environment-friendly type civic building antirust installation equipment |
-
2009
- 2009-09-27 CN CN2009202284695U patent/CN201516591U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695830B (en) * | 2009-09-27 | 2011-04-20 | 华中科技大学 | Hydraulic impact wrench |
| CN103899769A (en) * | 2014-03-28 | 2014-07-02 | 单祥海 | Convenient faucet |
| CN103899769B (en) * | 2014-03-28 | 2015-12-02 | 单祥海 | One facilitates water tap |
| CN107250634A (en) * | 2015-02-03 | 2017-10-13 | 奥贡承包私人有限公司 | For hydraulic pressure or the safety valve of pneumatic tool |
| CN107250634B (en) * | 2015-02-03 | 2019-12-31 | 奥贡承包私人有限公司 | Safety valve for hydraulic or pneumatic tools |
| TWI574797B (en) * | 2016-08-29 | 2017-03-21 | Pneumatic tool valve control structure | |
| CN108568773A (en) * | 2018-04-03 | 2018-09-25 | 璧垫捣 | A kind of environment-friendly type civic building antirust installation equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201516591U (en) | Hydraulic impact wrench | |
| CN101695830B (en) | Hydraulic impact wrench | |
| CN107965607B (en) | Deep sea ball valve control system | |
| CN110242770B (en) | Three-way ball valve | |
| CN101695839B (en) | Hydraulic flexible cable cutting knife | |
| CN102384300A (en) | Electric-manual double-acting semi-balance large-depth sea suction stop valve | |
| CN202900822U (en) | Dual-redundancy three-position four-way directional control valve | |
| CN101398020B (en) | Directional control valve driven by hydraulic pressure | |
| CN101695829B (en) | Hydraulic torque wrench | |
| CN201288715Y (en) | Directional control valve driven by hydraulic pressure | |
| CN101670885A (en) | Hydraulic pressure expander | |
| CN206889803U (en) | A kind of deep-sea hydraulic actuator | |
| CN115853422A (en) | Frozen soil drilling machine based on hydraulic system and driving method thereof | |
| CN107089264A (en) | A kind of servo-actuated self-locking energy saver | |
| CN201579740U (en) | Hydraulic pressure torque wrench | |
| CN2500435Y (en) | Hydraulic tool | |
| CN110195794B (en) | All-electric underwater ball valve actuator | |
| CN101690985B (en) | Hydraulic chain saw | |
| CN203868474U (en) | Hydraulically-controlled stop valve | |
| CN103591068B (en) | Spiral direct-drive electric-hydraulic proportional flow valve with hollow permanent-magnet alternating-current servo motor | |
| CN202392249U (en) | Electric and manual double-effect type semi-balance large-depth Kingston stop valve | |
| CN100557186C (en) | Hydraulic oilway gyrator for drilling rigs and drilling tools | |
| CN112815111A (en) | Ball valve | |
| RU148782U1 (en) | PIPE LATCH | |
| CN207717416U (en) | The multiple-way valve body mechanism of Deep-sea Fluid fidelity sampling device based on ROV |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100630 Effective date of abandoning: 20090927 |