CN104836148A - Stroke fine-tuned hydraulic tightening device for insulator replacing device - Google Patents
Stroke fine-tuned hydraulic tightening device for insulator replacing device Download PDFInfo
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Abstract
Provided is a stroke fine-tuned hydraulic tightening device for an insulator replacing device. The stroke fine-tuned hydraulic tightening device comprises a fork-shaped connector, a lead screw, and a hydraulic device. The lead screw is composed of a lead screw 1, a lead screw 2, and a double-ended thread sleeve connected between the lead screw 1 and the lead screw 2. The middle of the double-ended thread sleeve is connected with a wrench. The fork-shaped connector is connected with the end of the lead screw 1. The piston rod of the hydraulic device extends out of the front end of a cylinder body and is fixedly connected with the lead screw 2. The rear side of the cylinder body of the hydraulic device is provided with a fork-shaped portion. The hydraulic device is connected with a stirrup pump. The stroke fine-tuned hydraulic tightening device adopts a lead screw and hydraulic device combined structure; the wrench is utilized to rotate the double-ended thread sleeve to adjust the length of the lead screws, so as to pre-absorb redundant stroke; then the hydraulic device provides effective working stroke, not only can the portability of the lead screws during an unstressed state and a slightly stressed state be utilized, but also the hydraulic device is utilized to complete the tightening operation under a rated working load by virtue of lower operating force, and the operation is labor-saving and convenient. The hydraulic device adopts a one-way throttle valve to automatically control the return oil flow, and the stroke fine adjustment of the hydraulic device is realized.
Description
Technical field
Patent application of the present invention is number of patent application is 201210392411.0, the applying date be October 16 in 2012 day, be called the divisional application of the application for a patent for invention of " the tight power device of replacing device for insulator ".
Technical field
The present invention relates to the tight power device of the replacing device for insulator in ultra-high-tension power transmission line.
Background technology
In aerial high-voltage power transmission line, insulated by insulator string tensioning steel tower both sides high-voltage conducting wires, insulator string Long-Time Service there will be aged deterioration, need change in time, otherwise can impact to voltage transmission of electricity and safety.The replacing device for insulator of current use has two pairs of tight power devices and is connected to two jig compositions of two pairs of tight power device front and back ends.Insulator string is clamped between two jigs, and tight power device drives screw mandrel to shrink by worm drive, and wire is transferred on two pairs of tight power devices to the tensile force that insulator string applies, and insulator string relaxes, and can dismantle insulator string like this.China's Authorization Notice No. is CN 101174761B(application number 200710092913.0), denomination of invention discloses a kind of two yoke plate device in the patent of invention of " high-voltage power line tension insulator string forward spin live-wire altering method ", namely two yoke plate device is replacing device for insulator, two yoke plate device comprises two wing cards, two rhizoid thick sticks and two secondary insulation pulling plates, one end of two secondary insulation pulling plates is connected with wing card both wings respectively, the other end is connected with a rhizoid thick stick respectively, and the two rhizoid thick stick other ends respectively card both wings wing with another are connected.Be provided with pipe nipple between insulation pulling plate and wing card, insulation pulling plate junction is provided with connecting hole, is bolted hole and wing linking connects.Replacing device for insulator needs the tensile force born in circuit in using, and the rotation of screw mandrel needs very large moment of torsion, and the rotation of current screw mandrel is all by artificial, so operation effort and inconvenient.
Summary of the invention
The object of the invention is to propose the stroke fine adjustment type liquid thrust device of a kind of rapid operation replacing device for insulator easily.
For achieving the above object, the present invention takes following technical scheme:
The present invention includes forked element, screw mandrel and hydraulic means, described screw mandrel is made up of No. I screw mandrel, No. II screw mandrel and the double end swivel nut be connected between No. I screw mandrel and No. II screw mandrel, the middle part of double end swivel nut is connected with spanner, forked element is connected on the termination of No. I screw mandrel, the piston rod of hydraulic means stretches out from cylinder body front end, No. II screw mandrel and piston rod one, be fork-shaped portion on rear side of the cylinder body of hydraulic means, hydraulic means connects stirrup pump, the cylinder body of described hydraulic means is by front-bank rotor housing, outer cylinder body and rear-bank rotor housing composition, inner barrel is provided with in outer cylinder body, in, annular fuel tank is formed between outer cylinder body, the piston of hydraulic means is divided into ante-chamber and back cavity inner barrel, annular fuel tank is communicated by rear-bank rotor housing oil duct and back cavity, be between rear-bank rotor housing and piston and be provided with main stage clip in back cavity, front-bank rotor housing is provided with pressure oil passage, suction passage, drainback passage and pressure release passage, pressure oil passage links up pump housing chamber and the ante-chamber of stirrup pump, suction passage links up the pump housing chamber of stirrup pump and annular fuel tank, pressure release passage and drainback passage connection at a right angle, drainback passage leads to ante-chamber, pressure release passage leads to annular fuel tank, force feed unidirectional valve and oil sucting one-way valve is respectively equipped with in pressure oil passage and suction passage, one-way throttle valve is provided with between drainback passage and pressure release passage, described stirrup pump has the pump housing, sucker rod, rocking arm, rocker head and handle, the lower end of the pump housing is connected in the pump housing installing hole of hydraulic means front-bank rotor housing, the lower end of rocking arm is hinged on the support of front-bank rotor housing outer wall, the upper end thereof of rocking arm has rocker head, handle is connected on rocker head, and the upper end of sucker rod is stretched out the pump housing and is hinged on rocker head, in drainback passage, be in the position had a common boundary with pressure release passage be provided with throttling valve pocket, the upper end open of throttling valve pocket, what the described one-way throttle valve be arranged in throttling valve pocket adopted is gap throttle style, one-way throttle valve comprises adjustable valve rod, spool and is in No. III steel ball below spool, adjustable valve rod inserts from the opening of throttling valve pocket, its lower end is supported and spool, gap is provided with between spool and surrounding chamber wall, form annular gap, the lower end of throttling valve pocket is valve port, and No. III steel ball is got lodged in the valve port of throttling valve pocket by the pressure that spool gives by adjustable valve rod.
Described rear-bank rotor housing is fixed with guide vane end stop, and guide vane end stop oilhole and rear-bank rotor housing oil duct communicate.
In pressure oil passage, be provided with force feed valve pocket, the upper end of force feed valve pocket is valve port, and force feed unidirectional valve comprises No. I steel ball and small pressure spring, and No. I steel ball is supported the valve port getting lodged in force feed valve pocket by small pressure spring.
In suction passage, be provided with oil suction valve pocket, the lower end of oil suction valve pocket is valve port, and oil sucting one-way valve comprises No. II steel ball, and No. II steel ball relies on gravity to get lodged in the valve port place of oil suction valve pocket.
The valve port of oil suction valve pocket is the two-stage valve port that compacting is formed, and is combined into by the tubaeform valve port of higher level and subordinate's cylindricality valve port.
The valve port of throttling valve pocket is the two-stage valve port that compacting is formed, and is combined into by the tubaeform valve port of higher level and subordinate's cylindricality valve port.
Described forked element has two front engaging lugs, and front engaging lug is provided with bolt hole, and wherein the bolt hole of an engaging lug is shoulder hole, and the hole, large footpath of shoulder hole is the unthreaded hole that the bolt hole on another front engaging lug extends, and the diameter holes of shoulder hole is screwed hole; The fork-shaped portion of cylinder body has two rear engaging lugs, and rear engaging lug is provided with bolt hole, and wherein the bolt hole of a rear engaging lug is shoulder hole, and the hole, large footpath of shoulder hole is the unthreaded hole that the bolt hole after another on engaging lug extends, and the diameter holes of shoulder hole is screwed hole.
The present invention has following good effect: 1, this tight power device adopts leading screw to add the fabricated structure of hydraulic means, spanner is first utilized to rotate double end swivel nut adjustment screw mandrel length, for the stroke that pre-absorption is unnecessary, effective impulse stroke is provided again by hydraulic means, both make use of leading screw not stressed and slight stressed time portability, utilize again the tight masterpiece industry that hydraulic means realizes when completing nominal operating duty with less operating physical force, rapid operation is convenient.2, the hydraulic means of this tight power device adopts one-way throttle valve automatically to control the flow of oil return, can slowly oil return, realizing the stroke fine setting of hydraulic means, providing convenience for operating.3, one-way throttle valve adopts gap throttle style, and structure is simple, easy to process.4, the valve port of force feed valve pocket and throttling valve pocket is the two-stage valve port that compacting is formed, and the material structure at valve port place is tight especially, steel ball can be avoided because of the damage caused the shock of valve port that declines fast after release of pressure, extend the useful life of hydraulic means.5, because the fork-shaped portion of forked element and cylinder body respectively has the bolt hole on an engaging lug to be shoulder hole, the hole, large footpath of shoulder hole is the unthreaded hole that the bolt hole on another engaging lug extends, so the concentricity line of bolt hole on two engaging lugs, can not deflection be there is in the bolt be connected between two engaging lugs, the thread segment of the bolt adopted inside contracts in the shoulder hole of engaging lug, the shear strength of bolt can being ensured, damage can not be caused to being between two engaging lugs by bolted component again.5, this tight power device compact conformation, volume little, facilitate altitude effect.
Accompanying drawing explanation
Fig. 1 is the view of this tight power device structure.
Fig. 2 is the vertical view (locally) of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the B-B cutaway view of Fig. 2.
Fig. 5 is the spool schematic diagram in the state of the equilibrium of one-way throttle valve.
Fig. 6 is the schematic diagram of spool under non-equilibrium state of one-way throttle valve.
Fig. 7 is the view of forked element.
Embodiment
Embodiment 1
Tight power device shown in accompanying drawing 1 to 4 comprises forked element 1, screw mandrel 2 and hydraulic means 3.Screw mandrel 2 is made up of No. I screw mandrel 2-1, No. II screw mandrel 2-3 and double end swivel nut 2-2, double end swivel nut 2-2 is connected between No. I screw mandrel 2-1 and No. II screw mandrel 2-3, the hand of spiral of No. I screw mandrel 2-1 and No. II screw mandrel 2-3 is contrary, in the middle part of double end swivel nut 2-2, be fixed with spanner 2-4.Forked element 1 is connected on the termination of No. I screw mandrel 2-1, and the piston rod 3-4 of hydraulic means 3 stretches out from cylinder body front end, and No. II screw mandrel 2-3 is fixedly connected with piston rod 3-4, and No. II screw mandrel 2-3 and piston rod 3-4 can be taked integrally to process.Be fork-shaped portion 3-9 on rear side of the cylinder body of hydraulic means 3, hydraulic means 3 connect stirrup pump 4.
The cylinder body of hydraulic means 3 is made up of front-bank rotor housing 3-1, outer cylinder body 3-2 and rear-bank rotor housing 3-8, inner barrel 3-3 is provided with in outer cylinder body, inside and outsidely between cylindrical shell 3-3,3-2, form annular fuel tank 3-a, the piston 3-5 of hydraulic means 3 is divided into ante-chamber 3-b and back cavity 3-c inner barrel, be between rear-bank rotor housing 3-8 and piston 3-5 and be provided with main stage clip 3-6 in back cavity 3-c, rear-bank rotor housing 3-8 is threaded limited location block 3-7, guide vane end stop 3-7 to the laggard sports limiting of piston 3-5.Be fixedly connected with by horned nut 10 between piston rod 3-4 and piston 3-5.Guide vane end stop 3-7 is provided with guide vane end stop oilhole 3-7-1, and annular fuel tank 3-a is communicated by rear-bank rotor housing oil duct 3-d, guide vane end stop oilhole 3-7-1 and back cavity 3-c.Front-bank rotor housing 3-1 is provided with pressure oil passage 3-e, suction passage 3-f, drainback passage 3-g and pressure release passage 3-h, pressure oil passage 3-e links up pump housing chamber 4-a and the ante-chamber 3-b of stirrup pump, suction passage 3-f links up the chamber of stirrup pump pump housing 4-1 and annular fuel tank 3-a, pressure release passage 3-h and drainback passage 3-g connection at a right angle, drainback passage 3-g leads to ante-chamber 3-b, and pressure release passage 3-h leads to annular fuel tank 3-a.In pressure oil passage 3-e and suction passage 3-f, be respectively equipped with force feed unidirectional valve 5 and oil sucting one-way valve 6, between drainback passage 3-g and pressure release passage 3-h, be provided with one-way throttle valve 7.
The enlarged portion that diameter is greater than pressure oil passage diameter is provided with in pressure oil passage 3-e, enlarged portion is as force feed valve pocket 3-e-1, the upper end of force feed valve pocket 3-e-1 is valve port, force feed unidirectional valve 5 comprises No. I steel ball 5-1 and small pressure spring 5-2, and No. I steel ball 5-1 is supported the valve port getting lodged in force feed valve pocket 3-e-1 by small pressure spring 5-2.For convenience of the installation of small pressure spring 5-2, force feed valve pocket 3-e-1 is in the bottom surface near front-bank rotor housing 3-1, and the bottom surface corresponding force feed valve pocket 3-e-1 of front-bank rotor housing 3-1 is provided with bolt hole, installs a bolt 5-3 in bolt hole, the end face of bolt 5-3 is provided with compression spring hole, and the bottom of small pressure spring is placed in compression spring hole.The valve port of force feed valve pocket 3-e-1 is the two-stage valve port 3-e-2 that compacting is formed, and is combined into by higher level's cylindricality valve port 3-e-22 and the tubaeform valve port 3-e-21 of subordinate.
The enlarged portion that diameter is greater than suction passage diameter is provided with on the top of suction passage 3-f, enlarged portion is as oil suction valve pocket 3-f-1, the lower end of oil suction valve pocket 3-f-1 is valve port, and oil sucting one-way valve 6 comprises No. II steel ball 6-1, and No. II steel ball 6-1 relies on gravity to get lodged in the valve port place of oil suction valve pocket 3-f-1.The valve port of oil suction valve pocket 3-f-1 is the two-stage valve port 3-f-2 that compacting is formed, and is the combination of the tubaeform valve port 3-f-21 of higher level and subordinate cylindricality valve port 3-f-22.
In drainback passage 3-g, be in the position had a common boundary with pressure release passage 3-h be provided with the enlarged portion that diameter is greater than drainback passage diameter, enlarged portion is as throttling valve pocket 3-g-1, the upper end open of throttling valve pocket 3-g-1, what be arranged on that described one-way throttle valve 7 in throttling valve pocket 3-g-1 adopts is gap throttle style, and one-way throttle valve 7 comprises adjustable valve rod 7-1, spool 7-2, be in No. III steel ball 7-3 below spool 7-2 and swivel nut 7-4 and pressure release handle 7-5.Swivel nut 7-4 is threaded in the openend of throttling valve pocket 3-g-1, adjustable valve rod 7-1 stretches in throttling valve pocket 3-g-1 by swivel nut 7-4, the lower end of adjustable valve rod 7-1 is supported and spool 7-2, and adjustable valve rod 7-1 and swivel nut 7-4 is threaded, and pressure release handle 7-5 is connected on adjustable valve rod 7-1.The aperture of pressure release passage 3-h and spool 7-2 correspondence, be provided with gap between spool 7-2 and surrounding chamber wall, form annular gap 3-g-3.The lower end of throttling valve pocket 3-g-1 is valve port, and No. III steel ball 7-3 is got lodged in the valve port of throttling valve pocket 3-g-1 by the pressure that spool 7-2 gives by adjustable valve rod 7-1.The valve port of throttling valve pocket 3-g-1 is the two-stage valve port 3-g-2 that compacting is formed, and is combined into by the tubaeform valve port 3-g-21 of higher level and subordinate cylindricality valve port 3-g-22.
The two-stage valve port 3-g-2 of the two-stage valve port 3-e-2 of above-mentioned force feed valve pocket 3-e-1, the two-stage valve port 3-f-2 of oil suction valve pocket 3-f-1 and throttling valve pocket 3-g-1 all applies the coercive method, method is as follows, get the steel ball onesize with valve pocket diameter to pressurize to valve port place, formed tubaeform at valve port place, the channel part generation deformation be now connected with valve pocket, inwall bloats, then gets identical with channel diameter or to divide deformations slightly larger than the steel ball of channel diameter and exert pressure, and forms cylindricality valve port.Because two-stage valve port is that compacting is formed, so material structure is tight, steel ball can be born and clash into.
Sucker rod 4-2 is provided with in the pump housing chamber 4-a of described stirrup pump 4, the lower end of described pump housing 4-1 is threaded in the pump housing installing hole of hydraulic means front-bank rotor housing 3-1, the support 3-11 of front-bank rotor housing 3-1 outer wall is hinged with Rocker arm 4-3; upper end thereof of Rocker arm 4-3 has rocker head 4-4; one handle 4-5 is connected on rocker head 4-4; the middle part that pump housing 4-1 is hinged on rocker head 4-4 is stretched out in the upper end of sucker rod 4-2, and this pin joint is as fulcrum.
Forked element 1 is used for being connected with the jig of replacing device for insulator with the fork-shaped portion 3-9 of cylinder body.Forked element 1 has a pair engaging lug 1-1,1-1, engaging lug is provided with bolt hole, wherein the bolt hole of an engaging lug is shoulder hole, and the large footpath hole 1-1-b of shoulder hole is the unthreaded hole that the bolt hole 1-1-c on another engaging lug extends, and the diameter holes 1-1-a of shoulder hole is screwed hole.See Fig. 7, the bolt hole on two engaging lugs is concentricity line, can not there is deflection in the bolt 11 be connected between two engaging lugs, the thread segment of the bolt 11 of employing inside contracts in the shoulder hole of engaging lug.The cylinder body fork-shaped portion 3-9 of hydraulic means has a pair engaging lug 3-9-1,3-9-1, engaging lug is provided with bolt hole, wherein the bolt hole of an engaging lug is shoulder hole, the large footpath hole 3-9-b of shoulder hole is the unthreaded hole that the bolt hole 3-9-c on another engaging lug extends, and the diameter holes 3-9-a of shoulder hole is screwed hole.The bolt of cylinder body fork-shaped portion 3-9 connects see Fig. 7.
The present invention under normal conditions piston rod 3-4 stretches out, in use, utilize leading screw not stressed and slight stressed time portability, first rotate with spanner 2-4 the length that double end swivel nut 2-2 adjusts screw mandrel 2, for the stroke that pre-absorption is unnecessary, re-use the length that hydraulic means 3 adjusts screw mandrel 2.Use procedure is as follows, locking pressure release handle 7-5, when pressing down the handle 4-5 of stirrup pump 4, sucker rod 4-2 presses down, and No. I steel ball 5-1 departs from the valve port of oil suction valve pocket 3-f-1, and force feed unidirectional valve 5 is opened, hydraulic oil in the 4-a of pump housing chamber enters ante-chamber 3-b by pressure oil passage 3-e, promote piston 3-5 laggard, piston rod 3-4 inside contracts, and the hydraulic oil in back cavity 3-c backflows annular fuel tank 3-a.When above carrying the handle 4-5 of stirrup pump 4, force feed unidirectional valve 5 is closed, pump housing chamber 4-a and oil suction valve pocket 3-f-1 forms negative pressure, No. II steel ball departs from the valve port of oil suction valve pocket 3-f-1, oil sucting one-way valve 6 is opened, hydraulic oil in annular fuel tank 3-a enters pump housing chamber 4-a by suction passage 3-f, goes round and begins again, and piston 3-5 is progressively laggard to required position.
In use, the phenomenon having " mistake " as laggard in piston 3-5, slightly unclamps pressure release handle 7-5, and the pressure now acted on one-way throttle valve 7 spool 7-2 reduces to some extent, and No. III steel ball 7-3 is backed down release of pressure.One-way throttle valve 7 in off position under, the pressure of the annular gap 3-g-3 of spool 7-2 surrounding is in poised state (see figure 5), once release of pressure, the pressure of the annular gap 3-g-3 of spool 7-2 surrounding will be in non-equilibrium state (see figure 6), spool 7-2 is in quick condition, when spool 7-2 is close to the aperture of pressure release passage 3-h, pressure release passage 3-h is kept off even to close, cause annular gap 3-g-3 close to the pressure increase at pressure release passage 3-h place, promote spool 7-2 to move to opposite side, at this moment pressure release passage 3-h reopens, annular gap 3-g-3 reduces close to the pressure at pressure release passage 3-h place, spool 7-2 shifts to the aperture place of pressure release passage 3-h, gone round and begun again the oil spillage of automatic regulating gap, hydraulic oil in ante-chamber 3-b is through drainback passage 3-g, pressure release passage 3-h enters annular fuel tank 3-a.Owing to being low discharge, main stage clip 3-6 promotes piston 3-5 and slowly advances, and realizes the stroke fine setting of hydraulic means.
7-5 is to a certain extent released for pressure release handle, and pressure release handle 7-5 rises and gives the upwards movable space of spool 7-2, and when spool 7-2 is raised certain altitude by oil pressure, the aperture of pressure release passage 3-h is not stopped, can realize Quick Depressurization.
Claims (7)
1. a stroke fine adjustment type liquid thrust device for replacing device for insulator, comprises forked element (1) and screw mandrel (2), it is characterized in that: also comprise hydraulic means (3), described screw mandrel (2) is made up of No. I screw mandrel (2-1), No. II screw mandrel (2-3) and the double end swivel nut (2-2) be connected between No. I screw mandrel (2-1) and No. II screw mandrel (2-3), the middle part of double end swivel nut (2-2) is connected with spanner (2-4), forked element (1) is connected on the termination of No. I screw mandrel (2-1), the piston rod (3-4) of hydraulic means (3) stretches out from cylinder body front end and is fixedly connected with No. II screw mandrel (2-3), be fork-shaped portion (3-9) on rear side of the cylinder body of hydraulic means (3), hydraulic means (3) connect stirrup pump (4), the cylinder body of hydraulic means (3) is by front-bank rotor housing (3-1), outer cylinder body (3-2) and rear-bank rotor housing (3-8) composition, inner barrel (3-3) is provided with in outer cylinder body, in, outer cylinder body (3-3, annular fuel tank (3-a) is formed 3-2), the piston (3-5) of hydraulic means (3) is divided into ante-chamber (3-b) and back cavity (3-c) inner barrel, annular fuel tank (3-a) is communicated by rear-bank rotor housing oil duct (3-d) and back cavity (3-c), be between rear-bank rotor housing (3-8) and piston (3-5) and be provided with main stage clip (3-6) in back cavity (3-c), front-bank rotor housing (3-1) is provided with pressure oil passage (3-e), suction passage (3-f), drainback passage (3-g) and pressure release passage (3-h), pressure oil passage (3-e) links up pump housing chamber (4-a) and the ante-chamber (3-b) of stirrup pump (4), suction passage (3-f) links up pump housing chamber (4-a) and the annular fuel tank (3-a) of stirrup pump (4), pressure release passage (3-h) and drainback passage (3-g) connection at a right angle, drainback passage (3-g) leads to ante-chamber (3-b), pressure release passage (3-h) leads to annular fuel tank (3-a), force feed unidirectional valve (5) and oil sucting one-way valve (6) is respectively equipped with in pressure oil passage (3-e) and suction passage (3-f), one-way throttle valve (7) is provided with between drainback passage (3-g) and pressure release passage (3-h), sucker rod (4-2) is provided with in the pump housing chamber (4-a) of described stirrup pump (4), the lower end of the pump housing (4-1) is connected in the pump housing installing hole of hydraulic means front-bank rotor housing (3-1), the support (3-11) of front-bank rotor housing (3-1) outer wall is hinged with rocking arm (4-3), the upper end thereof of rocking arm (4-3) has rocker head (4-4), one handle (4-5) is connected on rocker head (4-4), the upper end of sucker rod (4-2) is stretched out the pump housing (4-1) and is hinged on rocker head (4-4), in drainback passage (3-g), be in the position had a common boundary with pressure release passage (3-h) be provided with throttling valve pocket (3-g-1), the upper end open of throttling valve pocket (3-g-1), what the described one-way throttle valve (7) be arranged in throttling valve pocket (3-g-1) adopted is gap throttle style, one-way throttle valve (7) comprises adjustable valve rod (7-1), spool (7-2) and No. III steel ball (7-3) be in below spool (7-2), adjustable valve rod (7-1) inserts from the opening of throttling valve pocket (3-g-1), its lower end is supported and spool (7-2), gap is provided with between spool (7-2) and surrounding chamber wall, form annular gap (3-g-3), the lower end of throttling valve pocket (3-g-1) is valve port, No. III steel ball (7-3) is got lodged in the valve port of throttling valve pocket (3-g-1) by the pressure that spool (7-2) gives by adjustable valve rod (7-1).
2. the stroke fine adjustment type liquid thrust device of replacing device for insulator according to claim 1, it is characterized in that: described rear-bank rotor housing (3-8) is fixed with guide vane end stop (3-7), guide vane end stop oilhole (3-7-1) and rear-bank rotor housing oil duct (3-d) communicate.
3. the stroke fine adjustment type liquid thrust device of replacing device for insulator according to claim 1, it is characterized in that: in pressure oil passage (3-e), be provided with force feed valve pocket (3-e-1), the upper end of force feed valve pocket (3-e-1) is valve port, force feed unidirectional valve (5) comprises No. I steel ball (5-1) and small pressure spring (5-2), and No. I steel ball (5-1) is supported the valve port getting lodged in force feed valve pocket (3-e-1) by small pressure spring (5-2).
4. the stroke fine adjustment type liquid thrust device of replacing device for insulator according to claim 1, it is characterized in that: in suction passage (3-f), be provided with oil suction valve pocket (3-f-1), the lower end of oil suction valve pocket (3-f-1) is valve port, oil sucting one-way valve (6) comprises No. II steel ball (6-1), and No. II steel ball (6-1) relies on gravity to get lodged in the valve port place of oil suction valve pocket (3-f-1).
5. the stroke fine adjustment type liquid thrust device of replacing device for insulator according to claim 4, it is characterized in that: the valve port of oil suction valve pocket (3-f-1) is the two-stage valve port (3-f-2) that compacting is formed, and is combined into by the tubaeform valve port of higher level (3-f-21) and subordinate cylindricality valve port (3-f-22).
6. the stroke fine adjustment type liquid thrust device of replacing device for insulator according to claim 1, it is characterized in that: the valve port of throttling valve pocket (3-g-1) is the two-stage valve port (3-g-2) that compacting is formed, and is combined into by the tubaeform valve port of higher level (3-g-21) and subordinate cylindricality valve port (3-g-22).
7. the stroke fine adjustment type liquid thrust device of replacing device for insulator according to claim 1, it is characterized in that: forked element (1) has two front engaging lugs (1-1,1-1), front engaging lug is provided with bolt hole, wherein the bolt hole of an engaging lug is shoulder hole, the hole, large footpath (1-1-b) of shoulder hole is the unthreaded hole that the bolt hole (1-1-c) on another front engaging lug extends, and the diameter holes (1-1-a) of shoulder hole is screwed hole; The fork-shaped portion (3-9) of cylinder body has two rear engaging lugs (3-9-1,3-9-1), rear engaging lug is provided with bolt hole, wherein the bolt hole of a rear engaging lug is shoulder hole, the hole, large footpath (3-9-b) of shoulder hole is the unthreaded hole that the bolt hole (3-9-c) after another on engaging lug extends, and the diameter holes (3-9-a) of shoulder hole is screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175081.3A CN104836148B (en) | 2012-10-16 | 2012-10-16 | The stroke fine adjustment type hydraulic pressure clamp force device of replacing device for insulator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175081.3A CN104836148B (en) | 2012-10-16 | 2012-10-16 | The stroke fine adjustment type hydraulic pressure clamp force device of replacing device for insulator |
| CN201210392411.0A CN102904193B (en) | 2012-10-16 | 2012-10-16 | Tightening device of insulator replacement device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210392411.0A Division CN102904193B (en) | 2012-10-16 | 2012-10-16 | Tightening device of insulator replacement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104836148A true CN104836148A (en) | 2015-08-12 |
| CN104836148B CN104836148B (en) | 2018-09-21 |
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Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510176644.0A Active CN104752993B (en) | 2012-10-16 | 2012-10-16 | Change the clamp force device of electric insulation sub-device |
| CN201510175081.3A Active CN104836148B (en) | 2012-10-16 | 2012-10-16 | The stroke fine adjustment type hydraulic pressure clamp force device of replacing device for insulator |
| CN201510176521.7A Active CN104752989B (en) | 2012-10-16 | 2012-10-16 | A kind of clamp force device of replacing device for insulator |
| CN201510176523.6A Active CN104752990B (en) | 2012-10-16 | 2012-10-16 | The clamp force device of electric insulator more changing device |
| CN201510176645.5A Active CN104752994B (en) | 2012-10-16 | 2012-10-16 | The hand-pushing hydraulic pressure clamp force device of replacing device for insulator |
| CN201210392411.0A Active CN102904193B (en) | 2012-10-16 | 2012-10-16 | Tightening device of insulator replacement device |
| CN201510174990.5A Active CN104836147B (en) | 2012-10-16 | 2012-10-16 | For replacing the clamp force device of electric insulator |
| CN201510176524.0A Active CN104752991B (en) | 2012-10-16 | 2012-10-16 | The fluid pressure type clamp force device of replacing device for insulator |
| CN201510176607.XA Active CN104752992B (en) | 2012-10-16 | 2012-10-16 | A kind of stroke fine adjustment type clamp force device of replacing device for insulator |
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| CN201510176644.0A Active CN104752993B (en) | 2012-10-16 | 2012-10-16 | Change the clamp force device of electric insulation sub-device |
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| CN201510176521.7A Active CN104752989B (en) | 2012-10-16 | 2012-10-16 | A kind of clamp force device of replacing device for insulator |
| CN201510176523.6A Active CN104752990B (en) | 2012-10-16 | 2012-10-16 | The clamp force device of electric insulator more changing device |
| CN201510176645.5A Active CN104752994B (en) | 2012-10-16 | 2012-10-16 | The hand-pushing hydraulic pressure clamp force device of replacing device for insulator |
| CN201210392411.0A Active CN102904193B (en) | 2012-10-16 | 2012-10-16 | Tightening device of insulator replacement device |
| CN201510174990.5A Active CN104836147B (en) | 2012-10-16 | 2012-10-16 | For replacing the clamp force device of electric insulator |
| CN201510176524.0A Active CN104752991B (en) | 2012-10-16 | 2012-10-16 | The fluid pressure type clamp force device of replacing device for insulator |
| CN201510176607.XA Active CN104752992B (en) | 2012-10-16 | 2012-10-16 | A kind of stroke fine adjustment type clamp force device of replacing device for insulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752990A (en) * | 2012-10-16 | 2015-07-01 | 江苏省电力公司常州供电公司 | Tensioner for insulator replacer |
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| CN103117522B (en) * | 2013-02-20 | 2015-11-04 | 山东电力集团公司烟台供电公司 | A kind of front cable plug separation device |
| CN105375399A (en) * | 2015-11-05 | 2016-03-02 | 国网湖南省电力公司带电作业中心 | Wire tightening tool for power transmission line lead and wire tightening method |
| KR200487323Y1 (en) * | 2016-05-30 | 2018-09-04 | 나가키 세이키 코포레이션 리미티드 | Remote manipulation device for rotation work |
| CN106253143A (en) * | 2016-08-10 | 2016-12-21 | 中国电力科学研究院 | A kind of cable type hydraulic line tightening device and method used for transmission line |
| CN117498222A (en) * | 2023-11-22 | 2024-02-02 | 国网青海省电力公司黄化供电公司 | Portable distribution network uninterrupted power tilting insulator defect eliminating tool |
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- 2012-10-16 CN CN201510176521.7A patent/CN104752989B/en active Active
- 2012-10-16 CN CN201510176523.6A patent/CN104752990B/en active Active
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| CN104752990A (en) * | 2012-10-16 | 2015-07-01 | 江苏省电力公司常州供电公司 | Tensioner for insulator replacer |
| CN104836147A (en) * | 2012-10-16 | 2015-08-12 | 江苏省电力公司常州供电公司 | Tightening force for replacing power insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104752991A (en) | 2015-07-01 |
| CN104836148B (en) | 2018-09-21 |
| CN104752994A (en) | 2015-07-01 |
| CN104752990B (en) | 2018-06-08 |
| CN104752992A (en) | 2015-07-01 |
| CN104752992B (en) | 2018-03-20 |
| CN104752989B (en) | 2017-03-08 |
| CN102904193B (en) | 2015-05-13 |
| CN104752993A (en) | 2015-07-01 |
| CN104752993B (en) | 2018-03-20 |
| CN104836147A (en) | 2015-08-12 |
| CN104752994B (en) | 2017-03-08 |
| CN104752990A (en) | 2015-07-01 |
| CN104752991B (en) | 2018-06-08 |
| CN102904193A (en) | 2013-01-30 |
| CN104752989A (en) | 2015-07-01 |
| CN104836147B (en) | 2018-05-15 |
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Address after: No. 27, Tianning District Bureau, front street, Changzhou, Jiangsu Province Co-patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. CHANGZHOU POWER SUPPLY BRANCH Co-patentee after: State Grid Corporation of China Address before: No. 27, Tianning District Bureau, front street, Changzhou, Jiangsu Province Co-patentee before: STATE GRID JIANGSU ELECTRIC POWER Co. Patentee before: STATE GRID CHANG ZHOU CURRENT SUPPLY COMPANY OF JIANGSU ELECTRIC POWER Co. Co-patentee before: State Grid Corporation of China Address after: No. 27, Tianning District Bureau, front street, Changzhou, Jiangsu Province Co-patentee after: STATE GRID JIANGSU ELECTRIC POWER Co. Patentee after: STATE GRID CHANG ZHOU CURRENT SUPPLY COMPANY OF JIANGSU ELECTRIC POWER Co. Co-patentee after: State Grid Corporation of China Address before: No. 27, Tianning District Bureau, front street, Changzhou, Jiangsu Province Co-patentee before: JIANGSU ELECTRIC POWER Co. Patentee before: CHANG ZHOU CURRENT SUPPLY COMPANY OF JIANGSU ELECTRIC POWER Co. Co-patentee before: State Grid Corporation of China |
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Address after: 210024 No. 215 Shanghai Road, Nanjing City, Jiangsu Province Co-patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. CHANGZHOU POWER SUPPLY BRANCH Patentee after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Co-patentee after: State Grid Corporation of China Address before: No. 27, Tianning District Bureau, front street, Changzhou, Jiangsu Province Co-patentee before: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Patentee before: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. CHANGZHOU POWER SUPPLY BRANCH Co-patentee before: State Grid Corporation of China |