DE1905811U - REMOTE HANDLING COUPLING. - Google Patents

Description

Remote coupling

The innovation "concerns remotely operated couplings between a driving and a driven part, for example for coupling a rotatable valve spindle to a Drive motor.

In some applications, for example in the nuclear field and in certain branches of chemistry result, it is necessary to arrange valves in components carrying a flow medium at points those resulting from the presence of noxious atmospheres in the area where the valve is installed ■ are inaccessible to various dangers for humans. Nevertheless, these valves must be operated with a high degree of reliability in accordance with their task, and in order to be able to maintain their operational reliability, either their removal or their replacement must be carried out the same valve or its removal for repair purposes with subsequent reinstallation may be possible.

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It goes without saying that this option should be retained the replacement of the valve unit for a permanently installed motorized drive unit to operate of the valve unusable. There is therefore a need for a drive coupling that can be easily engaged and disengaged between a removable drive motor and the Spindle of a built-in valve

According to the contract is between a drive motor with a Output shaft and the input shaft of a driven part provided a remotely operated clutch in which the motor to be brought into engagement with its output shaft with the input shaft of the driven part be hung up and led down vertically can and has adjustable jaws disposed around its output shaft for engaging around the Surfaces arranged around the input shaft of the driven part, with the jaws open when the motor is suspended Take up position, and means are provided to support the jaws if the weight of the engine is supported will lead to a closed position.

The foregoing and others. Features of the innovation go from the following description of one of the enclosed Drawing schematically illustrated embodiment of a valve after the rise in prices. Show it:

Pig. 1 shows a section through a valve unit in one a component carrying a flow medium,

Pig. 2 a view of the valve actuation device, also in section,

Pig. 3 a section along the line III-III in Pig. 2 and

Pig. 4 is a perspective view of a manual repair tool .

According to Pig. 1 has the component 1 that carries a flow medium an access side 1a, from which the Yentil "is operated or removed from the component for the purpose of repairing it can be. The component 1 contains an inlet line 2 and an outlet pipe 3, the axes of which are at right angles to one another, the axis of the pipe 3 being vertical and the side 1a runs generally parallel to the axis of the line 2. The component has an in axial extension of the line 3 extending stepped tab or hole 1b with in the axial direction along the Line separate inner shoulders 4, 5 and 6, of which the shoulder 4 is arranged in the Hahe the mouth of the line 3. The shoulders 4, 5 and 6 form against a sleeve 7 encompassing the valve unit 8 and provided complementary shoulders with annular seals 4a, 5a or 6a. The annular seals contain between the

matching shoulders used as "conoseals" well-known, hard metal washers.

The socket 7 lies in the bore 1b with its inner open end 7a in extension of the line 3 and has in Extension of the line 2 in its side wall an opening 7b, whereby a connection between the lines 2 and 3 is produced through the interior of the socket 7 when the valve is opened. The end 7a of the socket is on its inner surface sloping towards the mouth of the line 3 thickened, the section 9 as a valve seat serves. The valve seat is formed by inserting two separate hats 8a, 8b into the material of the bushing cuts in that an entrance 9 extends upstream from the stem metal in relation to the flow remains in an inclined position to the socket axis. The grooves 8a, 8b can be made with deformable, heat-absorbing Material to be filled.

The valve body contains a bushing 10 which has an axial opening 10a in its end wall and which are arranged separately from one another having radial openings 10b. The face 11 of the bushing 10 lying against the valve seat is in the manner beveled so that it faces the ring 9 with a conical surface.

The socket 10 is attached to a valve spindle 12 with the aid of a pin 13 pushed through the spindle,

its protruding ends in diametrically opposite one another Slots are arranged so that they give the bushing relative to the spindle some axial freedom of movement permit. Axial alignment of the bushing 10 is facilitated by making its end face 10c tapered so forms that it just leaves a conical seat 12a present on the spindle 12 free. Internally of the bush 10 is a retraction spring between the end wall of the bush and a shoulder present on the spindle 12 15 arranged. The valve spindle 12 is at the point at which it protrudes from the socket 10 with an actuating rod 16 wedged onto a plug 17 fitted into the socket 7 and welded to it coupled. The threaded end 16a of the actuating rod 16 protrudes through the plug 17 and engages a threaded hole in an actuator nut 18 with a shoulder 18a. The nut 18 is pinned to a drive body 19 having a square pin 19a. The one from actuation nut 18 and drive member 19 existing unit is rotatably supported by ball bearing rings 20, the are arranged in a valve cover 21 which is screwed into the bore 22 that the end face 21a of the cover is in abutment with the surface 7c of the socket 7 and so on the seals 4a, 5a and 6a exerting pressure. The outer end face of the Yentilde cover 21 has claws 23 that have a little radial play

protrude beyond the square pin 19a. The other inner end of the lid 21 is inner in diameter expanded so that it receives the adjacent end portion of the socket 7, on which this protruding with the help of the pin 24, an extension piece 25 is attached. The extension piece 25 is displaceable in the cover 21 and with a stepped portion 25a provided which is axially offset from the shoulder 18a and a axial section 25b which penetrates into a Uut 26 present in the Deekel 21. A cuff-shaped one Spring 27 is arranged between the base of the hat 26 and the end face of the axial section 25b. To the Stop leakage from the outlet or inlet line along the inside of the socket and along the operating rod 16 are two separate from one another sleeve-shaped seals 28, 29 are fastened between the spindle 12 and the plug 17. I'm a damage To be able to determine on the outer sleeve 28, the space 30 is above in the plug 17, the socket 7 and the component 1 existing channels 3.1, 32 and 33 with connected to a monitoring device responsive to the presence of a flow medium in the intermediate space 30.

The opening of the valve from its shown in Fig. 1 closed position is achieved by turning the drive nut, which is actually an input shaft

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The drive nut 19 rotates the actuating nut 18 which, since it is freely rotatable in the bearings 20, however, with regard to axial? · displacement is limited, the operating rod provides an axial displacement · The operating rod 16 pulls the valve stem 12, as in Pig. 1 shown after on the right, with it taking along the locking pin 13 'which is initially freely movable in the slots 14. While this movement becomes the frustoconical lens The spindle 12 is pulled away from the opening 10a in the bushing 10, and the high pressure prevailing in the inlet line 3 increases transmit the outlet line 2, the spring 15 pressing the valve surface 11 against the valve seat 9. With further axial movement of the valve stem 12, the pin 13 rests against the rear surface of the slots 14 and it begins to transmit its axial movement to the socket 10, the surface 11 of which then stands out from the valve seat 9.

Since the valve seat 9 is flexible and has a curved end surface, it is separated from the frustoconical surface 11 in the manner of peeling off with a minimum of adhesive effect. Thus, less torque is required to open the valve than would be the case if these surfaces would slide on each other during operation. Even when used at high temperatures, you can see deform the ring 9 on the inclined surface 11 of the socket 10 so that it forms a tight connection by means of a toggle effect creates.

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The closing of the yentil is done by reversing the gate corridors discussed above.

In Fig. 2 is a remotely operated tool for opening and closing the Yentils as well as for its removal as The whole shown, the dashed some actuating file of the Yentil contains

The drive of the pin 19a of the drive nut 19 takes place by an electric motor 40 with an outer stator 40a and an inner rotor 40b via an eccentric 41 and Yerbund planetary gears 42, whose output force is absorbed via a sun gear 43, in whose hub a spring wedge 44 is arranged, which has a square socket for plugging onto the pin 19a. When using the Actuating tool on the Y-valve locks the spring wedge after the correction of a lack of axiality by means of a leil turn into the pin 19a.

The motor 40 with its transmission described above is arranged in a cylindrical housing 45 which has an edge section 46 owns, who umsehliessen the Yentildeekel 21 and can penetrate into an annular groove 47 (FIGS. 1 and 2) provided on the component 1. In the interior of the edge portion 46 existing inner unequal wedges 46a come with in the annular groove 47 (Fig. 2) existing complementary lines 47a in engagement, the edge portion 46 has eight on its outer circumference in uniform

Distances distributed longitudinal recesses 48, each one at the rear portion of the edge 46 by a Take up elastic tongue 49 attached to 50. Every Tongue 49 has an end 49a which is shaped such that it can be unlocked via an end that is present on component 1 beveled shoulder 51 can reach away.

The entire housing 45 with its hand portion 46 is enclosed by a closely fitting two-part cover (sleeve) 52 through which the drive unit is lowered when it is lowered can be worn on the Yentil in a vertical position. Between the two-part cover 52 and the housing 45 is one between an outer face 45a on the housing and one on the cover inner shoulder 52a prestressed coil spring 55 arranged.

While, as shown, the fairly easy fitting cover 52 is held by the leather 55 on the housing its open end has a section 52b which can slide into the elastic tongues 49.

The drive is installed by holding the entire drive while it is through the cover 52 in its vertical position Axis is carried, lowers. Under these conditions, the weight of the motor 40 overcomes the stiffness of the preloaded Spring 53 and continues to compress the spring

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that the lower parts of the housing 45 as well as its contents hang down from the cover and allow the elastic tongues 49 to jump radially outward. As a result, the tongues 49 can overlap those present in the component 1 with those present on the sand section 46 Wedges slide off engaging wedges 46a and the actuator is centered with respect to the valve, so that the spring wedge 44 comes into engagement with the square pin 19a.

When the housing 45 rests with the entire transmission, the specially shaped ends 49a of the tongues 49 get in the proximity of the beveled shoulder 51, and the further downward movement of the lid 52 allows the coil spring 43 »to assert oneself and to push the cover 52 over the elastic tongues 49 and thus to lock the drive housing firmly both axially and radially ·

The motor for rotating the pin 19a can then be fed in order to actuate the Y-valve (Mg. 1). Purposefully the motor can be made by the mutual engagement of the plug and receptacle shown schematically at 60 existing plug connection are fed by leading downwards of the drive comes into engagement in its operating position.

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In order to remove the drive if necessary, the Deekel lifted by a hoist. First, the Deekel 52 moves upwards, the motor with its drive remains under the action of its own weight and thus causes the compression of the leather 53 while the edge 52b slides over the resilient tongues 49 in the axial direction. After some axial movement of the lid 52, the tongues 49 are released and move outwards, in that they have their free ends 49a out of the beveled Loosen shoulders 51. The wedges 46a are then axially displaceable in the annular grooves 47 present in the component 1, so that the tool can be raised by lifting the valve unit vertically.

If the valve does not work satisfactorily, it is initially assumed that the electric motor has failed. It a suitable lifting tool is then placed flush with the axis of the valve, whereupon the entire motor unit is removed together with their electrical connections. If a replacement motor works satisfactorily, the engine can be removed and returned to its be placed in stock for later use,

If the fault cannot be eliminated by replacing the motor, the second motor is also removed. Then the valve has to be removed. For the sake of illustration, it is assumed that the line

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system carries poisonous or radioactive gas under pressure, and that emptying and subsequent Depressurization of the pipeline system are impracticable.

In these circumstances, a hand-operated repair tool (Fig. 4) is used to remove the valve. The tool 70 includes a two-part cylindrical housing, one part 71 of which has a gas shut-off valve at one end 72 in the form of a pierced ball and at its other end one on its outside with a screw thread provided coupling 73 contains. The coupling 73 contains gas-tight seals of any type in the Way that when they engage in the thread 73 (FIG. 1) a gas-tight seal is created between these parts. The remaining part 74, which forms a transport piston, is via a transport coupling 75 and a transport valve 76 of a type similar to the type of valve 72 releasably connected to the part 71. The valves 72 and 76 are operated by levers 72a and 76a, respectively. Inside the cylindrical housing extends coaxially to the Parts 71, 74 a rotatable spanner 77 and a locking bushing 78. The locking bushing 78 and the The shaft of the wrench 77 protrude from the outer end of the transport piston 74. On the protruding A customary actuating handle 77a is attached to the section of the Mulsehlüsselschaftes.

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In the position shown, the jaws of the open-end wrench are which are designed so that they are brought into engagement with the claws 23 of the valve cover 21 (Pig. 1) can be, concentrically in the part 71 of the tool 70 »in the head of the spanner 77 is a in number of elastic tongues 79 attached. The end 78a of the locking socket 78 present in the part 71 is with the elastic tongues 79 in engagement that when the locking sleeve 78 in the axial direction to Coupling 73 is pressed towards the elastic tongues 79 are urged radially inward, whereby the elasticity of the tongues when pulling the Yerriegelungsbuchse 78 their causes radial movement outwards. The ends of the tongues 79 are shaped so that they are screwed in of the coupling 73 in the threaded section 73a of the component (Fig. 1) engage in the beveled shoulder 21a (Fig. 1) and so the tool is locked with component 1. The jaws of the Open-end wrench with the claws 23 in engagement »It can be seen that the action of the elastic tongues 79 and of locking bush 78a is similar to that of resilient tongues 49 and cover 52 in FIG. 2.

The complete cycle of repairing the Y-valve is thus supplemented as follows. If the spanner 77 and the The locking bushing has been drawn into the transport piston 74 in the axial direction, the valves 72,

76 closed. The valves 72, 76 present on the part 71 or the transport piston 74 are closed, and the transport piston is then brought to such a pressure that, when the gas occupies the combined internal volume of the transport piston 74 and part 71, the resulting pressure is slightly higher than the line pressure. To check the valves for leakproofness, the pressure drop is monitored for a given period of time and, if the leakproofness is satisfactory, the tool is screwed onto the defective Y-valve, whereupon the coupling 73 is checked for leak-tightness by opening both Y-valves »(Otherwise the whole thing can can also be checked in a natural location at le ^; drtungsdruek). If a satisfactory pressure drop is measured over a given period of time, the wrench 77 is brought into engagement with the Yentil and the Deekel 21, as described above, and the end cover, with the exception of the outer housing, is unscrewed from the valve body together with all valve parts , the thread 22 working as a winch. The valve parts held in the claws of the locking sleeve are then drawn into the transport piston, whereupon both valves are closed. Then the transport coupling is released and unscrewed, the part 71 remaining in its position, whereupon the defective parts in the piston are brought to a storage for defective parts, on which the transport-

piston 74 is attached with the aid of the transport coupling 75 ". The valve is then opened and the defective components are screwed into and out of the bearing The jaws of the open-end wrench are loosened. The valve 76 is closed again and the piston 74 is uncoupled and becomes a bearing for new valve components to include a new set of replacement parts. The transport piston 74 is then again brought to its original pressure and passed to the part 71, with which his valve 72 via the valve as a gas lock acts or is brought to the pressure prevailing in the component guiding the flow medium. ITaGh review of the pressure, the coupling 73 is established between the tool and the component, whereupon the valves are opened in order to enable the installation of the new components and then the loosening of the open-end wrench. If necessary, the entire tool is freed from the component 1 before it is removed. Finally the new engine will be installed, after which the valve is ready for operation again.

Protection claims

Wb / In - 12 993

Claims (6)

- '.. PAf112075 12) 064 PATENTANWÄLTE ^' <"'U · U' & ipfrJ? N9. JgzJiarci ^ J (äffer-J3örner S & iplrs ^ nq. S ^ / ianS ^ / ceinricn ^ 'Prey a9 ~ \ PATENTANWALT MÜ LLER- BÖRN ER PATENTANWALT DIPL.-ING. WEY i BERLIN-DAHLEM · PODBIELS KIALLEE 68 MUNICH 22 · Wl DENMAYERSTRASSE 49 <? TELEPHONE 762907 · TELEGRAMS: PROPINDUS TELEFON 22 55 85. October 1964 European Atomic Energy Community (EURATOM), Brussels (Belgium) New protection claims% 1. Pernhandable coupling between an output shaft a drive motor and the input shaft of a driven part, characterized in that the Motor (40) can be suspended from support means and can be guided up and down vertically through them, and that the Motor has centering and locking parts (46, 49) arranged around its output shaft, which are designed such that they are opened when the engine is hanging and closing means are provided which are intended that the centering and ■ locking organs when placing the motor on the input shaft (19) of the driven part (21) close and thereby with arranged around the input shaft of the driven part around surfaces in engagement stand. 2 - TELEPHONE: 0184057 2. Coupling according to claim 1, characterized in that the motor (40) with a coupling part (44) in relation is axially adjustable on an outer housing (45) and adjustable coaxially around its output shaft carries centering and locking parts (46, 49 / , which open with the motor when the housing is suspended on suspension means are and closing means are provided, which are intended that the housing when the Coupling part on the input shaft (19) of the driven part (21), the centering and locking parts closes « 3 · Coupling according to claim 2, characterized in that a spring (53) is arranged between the motor (40) and the housing (45), which when the housing with the motor is tensioned by its own weight and when the coupling part (44) of the motor is put on on the input shaft (19) of the driven part (21) so relaxed that the housing with respect to the Moves motor and that means are provided which are designed such that when moving the Geheuses under the action of the spring the centering and locking members (46, 49) close. - * 3 - 4. Coupling according to claim 3, characterized in that the centering and locking members (46, 49) are in the form of radially outwardly-prestressed spring rings which extend around the output shaft of the motor (40) in the axial direction and when they occur the mutual sliding movement against an edge-like port set (52) of the housing. 5. Coupling according to claim 4 »characterized in that the resilient tongues (46, 49) are fixedly arranged at one end of an inner sleeve (46) which extends into extending in the axial direction parallel to the tongues and internal axial splines (46a, 49a) for engagement in on the input shaft (19) has existing grooves. 6. Coupling between a valve with a rotatable Spindle and a drive motor for the spindle that engages with the spindle by lowering it from above can be brought, the motor having a plurality of radially adjustable centering and locking parts (46, 49) carries, which are biased to assume an outer radial position, and a housing for the motor with a edge-like extension is provided in the axial ■ seal for adjusting the centering and locking parts - 4 " adjustable into an inner radial position by means of a pretensioned spring between the motor and the housing is, whereby the peder triggers the adjustment, provided that the motor shaft loads on the valve spindle. V « öng ^ r» ob Oi * vs-r "a" iteh '"li>e" eier.tao Unteriogan bsfeden see If "fen An * -. - · 's «*.' ■ ■» * ^ Mlteh «! Μ «« » sebühroate! .inspired to graze. On the request of the "<ten htew" al * n OWchen prices delivered in German "Patentamt, Pd / Mü - 12 993