Leak inspection device

Abstract

The invention relates to a leak detection device for mounting on a shaft, in particular sleeving on a shaft, the shaft having at least one enveloping seal, the leak detection device having: a cylindrical base body; a base surface of the cylindrical base body, the base surface being configured as a contact surface which can be brought into contact with an encapsulation sealing clamping element, in particular a support; a base surface seal on the base surface for sealing the base surface with respect to the encapsulation seal clamping element; a receptacle, in particular a receptacle bore, in the cylindrical base body for receiving the shaft at least in some regions in the cylindrical base body; a receiving seal on the receiving portion for sealing the receiving portion with respect to the shaft; at least one delivery opening on the cylindrical base body for delivering a liquid; a discharge means at least on the base surface for discharging or discharging the liquid from the leak checking device and for conveying the liquid to the encapsulation seal, in particular through the encapsulation seal clamping element; and a liquid guide within the base body for guiding the liquid from the delivery opening to the discharge means.

Description

Technical Field

[0001] The invention relates to a leakage checking device or leakage setting device, in particular for an enveloping seal, which is intended to be mounted, in particular to be inserted, on a shaft, in particular a knife shaft of an underwater pelletizer, wherein the shaft has at least one enveloping seal. Background Art

[0002] The encapsulation seal or plugging sleeve encapsulation is a type of seal that consists of multiple, in most cases three, sealing rings. The sealing rings are cut from a sealing strip with a chamfered section to match the shaft. The encapsulation seal or encapsulation is used in a plugging sleeve. In addition, this plugging sleeve also has a plugging sleeve-type bracket or bracket, a flange-like sleeve, with which the encapsulation seal is axially pressed by means of bolts and / or springs. In the case of elastic sealing materials, radial compression of the plugging sleeve encapsulation on the shaft is also achieved by axial compression. Therefore, the sealing gap can be set to a minimum value that matches the operating conditions.

[0003] As soon as the sealing ring or the enveloping seal is clamped by the bracket due to the screwing action, the sealing function is fulfilled. In order for the seal to remain functional over a long period of time, leakage must exist. The leakage fulfills the functions of lubrication and cooling. The leakage is preferably 8-15 drops of liquid or water per minute.

[0004] When used in an underwater pelletizer, the leak can only be set safely and correctly when water has been filled into one or more water chambers of the underwater pelletizer. The bolts will then be slowly tightened on the bracket and the leak can be set controllably.

[0005] However, the design of the water chamber is often implemented in such a way that the enveloping seal can only be clamped inside the unfilled water chamber. Therefore, no water flows when the enveloping seal is set. Therefore, the mobility of the shaft or the knife shaft about the corresponding axis of the shaft is used as a reference for setting the enveloping seal. However, the leakage is often or even (almost) always set incorrectly in this way.

[0006] This results in too little or no leakage and insufficient or no lubrication and cooling of the encapsulating seal, which results in unnecessary wear on the encapsulating seal and the knife shaft. If the leakage is set too high / too large, an unnecessary amount of water flows out of the water chamber through the plug sleeve and thus through the encapsulating seal. This is also disadvantageous. If an incorrect setting is detected, the (process) water must be released in order to reset the leakage, for example by tightening / loosening screws, but direct setting verification is again not possible, which results in unnecessary work and uncertainty. Summary of the invention

[0007] From this, the object of the present invention is to provide a leakage inspection device or leakage setting device, which eliminates or overcomes the disadvantages. In addition, in the dry assembly process of the underwater pelletizer in particular, the setting of the encapsulation seal or the plugging sleeve should have been correctly carried out.

[0008] This object is achieved by a leakage testing device or leakage setting device having the features of claim 1. Advantageous embodiments and / or developments are the subject matter of the dependent claims, the description and / or the drawings.

[0009] The leakage check device is constructed and / or arranged to be mounted, in particular to be sleeved on a shaft, wherein the shaft has at least one encapsulating seal. The leakage check device has a cylindrical base body and a base surface of the cylindrical base body, which is constructed as a contact surface that can contact an encapsulating seal clamping element, in particular a plugging sleeve bracket or bracket.

[0010] A base surface seal is provided on the base surface for sealing the base surface relative to the enveloping sealing clamping element.

[0011] Furthermore, the leakage test device has a receptacle, in particular a receptacle bore, in the cylindrical main body for receiving the shaft at least partially in the cylindrical main body, and a receptacle seal arranged on the receptacle for sealing the receptacle relative to the shaft.

[0012] In addition, at least one delivery opening for delivering liquid is provided on the cylindrical base body, a discharge means is provided on at least the base surface for discharging or leading the liquid from the leakage test device, and in particular for delivering the liquid to the encapsulating seal through the encapsulating seal clamping element, and a liquid guide is provided inside the base body for guiding the liquid from the delivery opening to the discharge means. The above-mentioned and further described elements, devices, means, etc. are correspondingly constructed and / or designed to meet or realize corresponding functions and / or the like.

[0013] Firstly, the device makes it possible to set the encapsulating seal with little water, since only a small amount of water is needed to fill the device and the area on the shaft, the support and the encapsulating seal or the plugging sleeve. In addition, a significantly faster setting can be achieved. In addition, the setting can be carried out with water directly on / in the encapsulating seal or the plugging sleeve, rather than in a dry state due to the mobility of the shaft. In the case of maintenance, the device can also be taken with the customer in order to be able to make the correct setting. This also makes it possible to correctly set or be able to set the encapsulating seal or the plugging sleeve, which prolongs the availability of the machine and thus improves the quality of the underwater pelletizer.

[0014] Thus, a cylindrical base body, preferably a base body having a cylindrical shape, can have an outer peripheral surface, a base surface and a top surface. Preferably, the base surface and / or the top surface extend radially with respect to the axis of rotation or rotation axis of the cylindrical base body. Thus preferably, the base surface and the top surface define the expansion of the leakage test device in the axial direction.

[0015] The leakage check device can have a fixing mechanism, in particular a fixing hole or a fixing opening on the top surface of the cylindrical base of the leakage check device, which extends into the receptacle or the base surface in order to fix the leakage check device on the shaft. Preferably, the fixing rotation axis of the fixing hole is coaxial with the rotation axis of the base. By means of the fixing mechanism, for example, a threaded connection of the leakage check device to the shaft and thus a fixation to the shaft can be achieved. The leakage check device can be screwed to one end of the shaft. Therefore, the fixing mechanism can be a fixing hole, through which a bolt can be guided, so that the fixing of the leakage check device on the shaft can be achieved by the bolt in combination with the fixing hole, in particular in combination with the countersunk portion of the fixing hole and a corresponding threaded hole on or in the shaft.

[0016] The fixing means can be designed as a clamping device, so that the cylindrical base body comprises at least two halves, which are connected to each other in the manner of a clamp, a pipe clamp or a collar and can thus be fixed on or around an axis. The fixing means can thus be designed as a two-part or multi-part clamp. Here, for example, the two halves of the base body can be fastened to each other with at least two screws, or alternatively with at least one hooked hinge or swivel bearing on the one hand and at least one clamping screw or snap-in lock on the other hand, as is common for clamps or collars by a person skilled in the art in the prior art.

[0017] The fastening means and / or the receptacle can be constructed and / or designed to mount the leakage test device on the shaft so that during operation no liquid can or can escape from the base surface seal and / or the receptacle seal.

[0018] The height of the substrate or the spacing of the stop surface and the base surface is preferably constructed, arranged and / or designed to: when the leakage check device is fixed, the base surface is against the encapsulated sealing clamping element or is spaced accordingly, so that at least the base surface seal is pressed against the encapsulated sealing clamping element so that sealing is performed or can be performed and no liquid can flow out or overflow from the surface of the base surface located radially inwardly with respect to the base surface seal through the base surface seal to the surface of the base surface located radially outwardly with respect to the base surface seal or flow out or overflow on it. This can mean that even when the base surface and / or the base surface seal are against the seal clamping element, the stop surface also touches the end of the contact shaft or the shaft. It is also possible that the contact of the stop surface is established only by fixing the leakage check device on the shaft, for example, by clamping the base surface seal and / or the top surface of the bending substrate. If there are multiple stop surfaces due to the structure of the shaft, it is correspondingly applicable or necessary to ensure that the height / spacing of the stop surface and the base surface is selected so that a reliable seal is ensured by the base surface seal.

[0019] The base surface configured as the contact surface can directly abut on the encapsulated seal clamping element or contact the encapsulated seal clamping element when the leakage check device is installed.But the base surface or the contact surface or the leakage check device can also be configured so that there is a tiny gap between the encapsulated seal clamping element and the base surface, and only the base surface seal directly abuts on the encapsulated seal clamping element.In this case, during the operation of the leakage check device, there is liquid or water in the tiny gap.It can also be imagined that an increased gap or spacing is set between the encapsulated seal clamping element and the base surface, so that the water flow around the encapsulated seal clamping element is better or distributed better.The gap of a maximum of several millimeters can be represented by a tiny gap and is represented by a gap of several centimeters that is expanded.Therefore, contact cannot be understood as actually having direct contact or directly abutting when the leakage check device is installed / fixed on the shaft, but a certain limited spacing / gap can be set and only the base surface seal directly abuts on the encapsulated seal clamping element or contacts the encapsulated seal clamping element.

[0020] The base surface seal can be constructed circularly and / or circumferentially in the circumferential direction. The base surface seal preferably has at least one sealing means of the base surface seal, such as an O-ring, or preferably at least one O-ring. The base surface seal or the sealing means of the base surface seal can protrude from the surface of the base surface in the axial direction relative to the encapsulated sealing clamping element. Therefore, the base surface seal can also be formed as a protruding surrounding and / or circular protrusion on, at or outside the base surface itself. The base surface seal can be constructed continuously, i.e. closed, without ends over the entire circumference and / or in the circumferential direction. The base surface seal can have a circular, elliptical, rectangular, square or other types of cross-sections. The base surface seal can be formed by two sealing means of the base surface seal arranged side by side, such as O-rings.

[0021] The base surface can have at least one preferably circular and / or circumferential groove, which extends in the circumferential direction and is closed. At least one base surface seal or at least one sealing means of a base surface seal can be arranged, inserted, pressed or fastened in the groove. It is also conceivable to arrange two grooves, each with at least one sealing means of a base surface seal, preferably closely or closely (in the axial direction) next to each other in order to achieve a better seal. Similarly, multiple base surface seals or sealing means of a base surface seal can be arranged in one groove.

[0022] The receiving portion can be implemented / designed as a hole starting from the base surface. The hole can be designed to pass completely through the cylindrical base body, preferably the hole extends partially inside the cylindrical base body, so that the hole ends in the base body and does not pass through the base body, so that at least one stop surface for the end of the shaft is formed in the cylindrical base body. It should be pointed out here that it is not necessary to involve any holes per se, but the holes constitute a substantially cylindrical recess or recess in the cylindrical base body in the leakage test device produced by casting or 3D printing. Therefore, the receiving portion can be designed in the form of a blind hole or blind hole.

[0023] The housing or the (blind) hole can have a plurality of shoulders. Thus, the radius of the housing can be continuously variable, thus also having areas with larger or smaller radii, thereby forming shoulders or grooves, as long as the radius changes without transitions. The radius can also change smoothly, so that there is a conical course of the housing. A combination of at least one radius change "without transition" and at least one smooth change is also conceivable. The housing or the at least one radius is or the different radii are preferably matched to the configuration of the shaft.

[0024] Furthermore, the receiving part can have at least one preferably circular and / or circumferential groove, which extends in the circumferential direction and is closed. The receiving seal or at least one sealing means of the receiving seal can be arranged, inserted, pressed into or fastened in the groove. It is also conceivable that two grooves are preferably arranged closely or close to each other (in the axial direction) side by side with at least one receiving seal or sealing means of the receiving seal in order to achieve a better seal. Two or more sealing means of the receiving seal can also be arranged or inserted in a groove, in particular side by side (in the axial direction).

[0025] The inner stop surface of the receptacle can extend partially radially, preferably completely radially. The inner stop surface can have at least one, preferably exactly one, protrusion / recess or at least one, preferably exactly one shoulder in the radial direction. The inner stop surface can be centrally penetrated by the fastening hole. The inner stop surface (therefore) preferably matches the corresponding end or end face of the shaft, so that a sufficient contact surface is formed.

[0026] Preferably, the receiving axis of rotation of the receiving portion or the (blind) hole is coaxial with the axis of rotation of the cylindrical main body.

[0027] The receptacle preferably has a larger radius than the fastening opening.

[0028] The receptacle preferably extends in the area of ​​the base surface, preferably as far as the base surface, and preferably has an increasing radius until slightly before the receptacle seal or the groove into which the receptacle seal is inserted / introduced, so that in this area a spacing is formed between the shaft and the receptacle or the surface of the receptacle, into which a liquid can be introduced, so that a liquid chamber surrounding the shaft can be formed or is formed.

[0029] Preferably, the receptacle and its corresponding outer circumference are constructed and / or designed to match the shaft.

[0030] The containment seal can be constructed circularly and / or circumferentially. The containment seal preferably has at least one sealing means of the containment seal, such as an O-ring, or preferably at least one O-ring. The containment seal or the sealing means of the containment seal can protrude beyond the surface of the containment portion in the radial direction relative to the shaft. Therefore, the containment seal can also be formed as a circumferential and / or circular protrusion, such as a protruding protrusion, on, at or from the containment portion itself. The containment seal can be constructed to be continuous over the entire circumference and / or in the circumferential direction, i.e., closed in itself, without ends. The containment seal can have a circular, elliptical, rectangular, square or other type of cross-section. The containment seal can be formed by two sealing means of the containment seal, such as O-rings, arranged side by side.

[0031] The receptacle, the at least one groove in / on the receptacle and the receptacle seal are designed and / or arranged such that no liquid can or cannot escape from the receptacle seal when the leakage test device is fastened to the shaft.

[0032] Thus, during operation, a liquid space / liquid region can be formed, which is filled with liquid, in particular water, and which is bounded by the shaft, the enveloping seal, the receiving seal and the base surface seal, wherein preferably the liquid only flows out through / in the enveloping seal, which is preferably to be set or can be set. The liquid is preferably conveyed to this liquid space / region by a discharge unit, which is arranged in the liquid space / region or radially on the inside relative to the base surface seal at the base surface.

[0033] At least one delivery opening can be arranged on the top surface and / or the outer peripheral surface. The delivery opening can be a delivery hole. The delivery opening is constructed and / or designed to enable the connection or installation of a hose or other type of liquid delivery member / pipeline. For this purpose, in particular, a thread, an adapter or a connection portion can be present.

[0034] Preferably, there are two conveying members. Here, one of the conveying members may not have a connection to the internal liquid guide. This can be established as required. If necessary, this means that when using only one conveying member, the amount of liquid that can be introduced through it is insufficient and / or the conveying member is added.

[0035] At least the discharge means at the base surface or the contact surface can have a plurality of outlets or openings through which the liquid can flow out of the leak detection device. The outlets can be arranged at the contact surface in a circumferential direction staggered or spaced apart from one another, for example at the same spacing / uniformly. The outlet or outlets can be arranged at a defined, preferably constant spacing from one another.

[0036] The outlet openings can be arranged circumferentially and / or circularly in the circumferential direction, preferably around the axis of rotation of the base body. The outlet opening or the plurality of outlet openings can each be arranged at the same distance from the axis of rotation of the base body and thus at the same distance in the radial direction relative to the axis of rotation of the base body. Preferably, the outlet openings are arranged opposite each other in the radial direction and / or diametrically.

[0037] The outlet opening can be at a smaller distance from the axis of rotation of the basic body than the base surface seal and / or the groove in which the base surface seal is arranged.

[0038] The outlet can be constructed as a differently configured outlet / opening on the base surface, preferably, the outlet has a rectangular (outlet) shape. However, it can also have a circular, oval, triangular, square or freely selected shape. Thus, the outlet can have a rectangular (outlet) shape on the base surface and / or its radially inner end extends all the way to the receptacle, so that the radially inner end of the outlet forms an opening on the receptacle or on the surface of the receptacle. Thus, the outlet can extend into the receptacle at its radially inner end, so that the outlet is also formed or has an opening in / at the receptacle or on the surface of the receptacle.

[0039] Preferably, there are at least two or four outlets, particularly preferably 10 to 60 outlets, and very particularly preferably 35 to 45 outlets.

[0040] The outlet or the discharge unit preferably delivers the liquid directly to the shaft and the enveloping seal clamping element, wherein the liquid reaches or is guided to the enveloping seal via the outlet or the gap formed between the shaft and the enveloping seal clamping element.

[0041] The internal liquid guide is configured so that the liquid can be guided or directed from the delivery opening to the discharge unit. The liquid guide preferably connects each outlet with the delivery opening. Preferably, the liquid guide is an annular distributor which is connected with the delivery opening and the outlet.

[0042] The leakage check device is therefore preferably designed in the form of a cover which can be placed on the shaft and fixed to it, in particular having holes for receiving fixing elements, in particular screws, for fixing on the side opposite the receptacle for the shaft or the insertion opening of the receptacle. The water is guided to the outlet via at least one supply opening, preferably an annular channel, so that the water can be guided / guided to the enveloping seal, to which a water hose can be connected. Since the cover can be designed so that the tightening screws of the enveloping seal or its enveloping seal clamping element or the holder are freely accessible, they can be tightened and thus leakage during water supply can be set as required.

[0043] Preferably, the leak test device is produced by 3D printing. Therefore, a hole cannot be understood as a recess or a cutout produced by drilling, but can also be understood as a circular and / or cylindrical and / or other shaped recess or cutout.

[0044] Unless otherwise specified or otherwise evident from the context, the terms "inner", "outer", "axial", "radial" and "in the circumferential direction" relate to the direction of extension of the axis of rotation or rotation of the cylindrical base body and / or the leakage test device. "Axial" corresponds to the direction of extension of the axis of rotation. "Radial" refers to the direction perpendicular to the direction of extension of the axis of rotation and intersecting the axis of rotation. "In the circumferential direction" corresponds to the direction of an arc around the axis of rotation.

[0045] The word “may” refers in particular to optional features of the invention. Therefore, there are also refinements and / or embodiments of the invention which additionally or alternatively have one or more corresponding features.

[0046] From the feature combinations disclosed above and / or below, individual features may also be selected as required and used in combination with other features to define the subject matter of the claims, taking into account any structural and / or functional relationships that may exist between these features. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Embodiments of the present invention are described in detail below with reference to the accompanying drawings, which are schematically and exemplarily shown herein:

[0048] Figure 1 A leak detection device is shown;

[0049] Figure 2 A cross-sectional view of a leak detection device is shown;

[0050] Figure 3 Another view of the leak check device is shown;

[0051] Figure 4 Another cross-sectional view of the leak check device is shown;

[0052] Figure 5 A cross-sectional view of a leakage check device mounted on a shaft is shown, comprising an encapsulating seal clamping element and an encapsulating seal. DETAILED DESCRIPTION

[0053] Figure 1 A leakage test device 1 is shown having a cylindrical base body 2. The base surface 3 or contact surface 3 of the cylindrical base body 2 is constructed and / or designed to rest on or be arranged on an encapsulating sealing clamping element 19. This is in direct contact or slightly spaced apart. The base surface 3 has openings or outlets 8, which form discharge means 8. These openings or outlets are constructed as rectangular openings in / at the base surface 3 and transition into the receptacle 5 at the end that is (radially) located inside with respect to the rotation axis D, so that the outlet 8 also has or forms a corresponding opening in / at the receptacle 5. At the (radially) external end of the outlet, the recess extends in the axial direction into the interior of the base body 2 and there transitions into the liquid guide 9 that is located inside (at the end of the receptacle 5). Figure 1 The liquid is supplied to the encapsulating sealing clamping element 19 via these outlets 8 .

[0054] In order to allow the liquid to reach the enveloping seal through the enveloping seal clamping element 19 and not to escape in other ways, the base surface 3 is provided with a base surface seal 3 (at Figure 1 ), which is arranged in a (base surface) groove 17 on / in the base surface 3 and radially outside the receptacle 5 and the outlet 8 .

[0055] Furthermore, the receptacle 5 for receiving the shaft 18 can be seen, which receptacle matches the surface of the shaft 18. The receptacle 5 also has a corresponding receptacle seal 6 (in the Figure 1 The receiving seal 6 is arranged in the (receiving) groove 16 so that the liquid cannot flow out on the shaft side either.

[0056] The receiving portion 5 ends in the cylindrical base body 2, so that the base body is configured as a kind of cover. The surface formed by the end in the base body 2 is also matched to the shaft 18. In this case, this means that two radially extending contact surfaces 13, 15 for the ends of the shaft 18 are formed.

[0057] Centrally about the rotation axis D, a fastening device 10 is formed which is realized as a hole and whose axis runs coaxially with the rotation axis D. Screws can be introduced into the fastening device 10 and screwed into corresponding threaded holes in the shaft 18 in order to connect the leakage test device 1 to the shaft 18 in a rotationally fixed or fixed manner.

[0058] Figure 2 The section AA of the leakage test device 1 is shown. In addition, the cylindrical base body 2 with the receptacle 5 can be seen. In addition, the receptacle 5 is matched with its surface or outer circumference in particular to the structure of the shaft and has essentially three different radii. The first maximum radius is formed at the beginning of the receptacle, that is, on the side of the base surface 3, which transitions to a slightly smaller radius. Then a (receiving) groove 16 for accommodating the seal 6 configured as an O-ring 6 is connected. Shortly after the (receiving) groove 16, the receptacle 5 is further enlarged again or the radius is increased again, so as to limit the sealing surface or contact surface between the leakage test device 1 and the shaft 18 to only a specific shaft section. This grading or radius change is only advantageous, but not mandatory.

[0059] The receiving portion 5 ends in the cylindrical base body 2 and is accordingly configured as a blind hole. The receiving portion 5 is a recess 5 of the base body 2. The end of the receiving portion 5 forms a stop surface 13 for the shaft 18. Here, the end of the shaft 18 is not flat, that is, it not only extends in the radial direction, but also has a recess, so that this is realized in the leakage test device 1 as a shoulder 14 in the axial direction, which has a corresponding surface 15, which in turn forms a stop surface 15 for the shaft 18.

[0060] The fastening means 10 is designed as a hole 10 with a depression 11 in a top surface 12 and extends along the rotation axis D of the base body 2 . The rotation axis of the fastening means is coaxial with the rotation axis D of the base body 2 .

[0061] The delivery openings 7 are designed as holes 7 which extend parallel to the rotation axis D. The upper delivery opening 7 is connected to an inner liquid guide 9 which is designed as an annular distributor 9. The lower delivery element 7 is designed as a replacement part and is not yet connected to the liquid guide 9. This can be achieved later by penetration or perforation.

[0062] The base surface 3 or contact surface 3 in which the base surface seal 4, designed here as an O-ring 4, is arranged extends radially relative to the rotation axis D and is penetrated / interrupted by the receptacle 5. The base surface 3 is thus designed as a flat annular surface, in which a recess for the base surface seal 4 or an annular, inherently closed (base surface) groove 17 is provided for accommodating the base surface seal 4 and the drainage means 8.

[0063] The discharge means 8 is composed of a plurality of outlets 8, which are respectively connected to an annular distributor 9. Figure 2 As can be seen in FIG. 1 , the outlet 8 also has an opening in the receptacle 5 , so that the liquid can be conducted in the radial direction to the shaft 18 .

[0064] Figure 3 The top side 12 of the cylindrical main body 2 is shown, in which one or two supply openings 7 are arranged, to which a supply element for the liquid can be connected.

[0065] Furthermore, a fastening device 10 is shown, which has a depression 11 for receiving and holding a screw. The sectional planes are denoted by AA or BB.

[0066] Figure 4 The section BB of the leak test device 1 is shown. The liquid passes through the delivery opening 7 to the liquid guide 9 or the annular distributor 9 located in the interior and from there to the single or multiple outlets 8 .

[0067] Figure 5 Again, a section through the leakage test device 1 is shown in a plane which is rotated about the rotation axis D relative to the section plane BB, so that there is no section through the delivery opening 7 . Figure 5 The shaft 18, the enveloping seal clamping element 19 and the enveloping seal 20 (and at least some of the other elements of the underwater pelletizing device) are shown. The leakage test device 1 is fixed or fastened to the shaft 18 by / via the fixing means 10 with screws 22. The enveloping seal clamping element 19 is arranged between the enveloping seal 20 and the leakage test device 1. The liquid reaches the enveloping seal 20 through the slight gap 21 between the enveloping seal clamping element 19 and the shaft 18. By unclamping / clamping the enveloping seal clamping element 19, the enveloping seal 20 is more or less sealed, so that a more or less severe leakage can be set accordingly.

[0068] Appropriate sealing means 4 , 6 or O-rings 4 , 6 are arranged in the (receiving) groove 16 and the (base surface) groove 17 , so that corresponding sealing relative to the shaft 18 or relative to the enveloping sealing clamping element 19 is achieved.

[0069] Reference numerals list

[0070] 1 Leakage detection device

[0071] 2 Columnar base

[0072] 3 Base surface / contact surface

[0073] 4Base seal / O-ring

[0074] 5. Accommodation

[0075] 6 Holds seals / O-rings

[0076] 7 Delivery opening

[0077] 8. Discharge means / export

[0078] 9 Internal liquid guide / ring distributor

[0079] 10. Fixing mechanism

[0080] 11 Sinking

[0081] 12 Top

[0082] 13 Stop surface

[0083] 14 shoulder

[0084] 15 Stop surface

[0085] 16 (accommodation) slots

[0086] 17 (base) slot

[0087] 18 Axis

[0088] 19 Encapsulate the sealing clamping element

[0089] 20 Encapsulation seal

[0090] 21 Gap

[0091] 22 Bolts

[0092] D-axis of rotation / central axis of the cylindrical base

Claims

1. A leakage test device for mounting on a shaft, in particular for being mounted on a shaft, wherein the shaft has at least one enveloping seal, the leakage test device comprising: - a cylindrical base; a base surface of the cylindrical base body, which is designed as a contact surface which can come into contact with an enveloping sealing clamping element, in particular a holder; a base surface seal located on the base surface for sealing the base surface relative to the enveloping sealing clamping element; a receptacle, in particular a receptacle bore, in the cylindrical base body for receiving the shaft at least partially in the cylindrical base body; a housing seal on the housing for sealing the housing relative to the shaft; - at least one delivery opening on the cylindrical base body for delivering the liquid; - drainage means at least on the base surface for draining or conducting the liquid out of the leakage test device and conveying the liquid, in particular via the encapsulating seal clamping element, to the encapsulating seal; as well as A liquid guide located in the base body for guiding the liquid from the delivery opening to the discharge means.

2. The leakage inspection device according to claim 1, characterized in that: There are fastening means, in particular fastening holes / fastening openings on the top side, which extend into the receptacle or the base surface for fastening the leakage test device on the shaft.

3. Leakage test device according to at least one of the preceding claims, characterized in that The fixing means and / or the receiving portion are constructed and / or designed so that the leakage test device can be mounted on the shaft so that no liquid can flow out of the base surface seal and / or the receiving seal or no liquid flows out of the base surface seal and / or the receiving seal during operation of the leakage test device.

4. Leakage test device according to at least one of the preceding claims, characterized in that The receptacle and / or the base surface has at least one circumferential groove for accommodating a receptacle seal or a base surface seal.

5. Leakage test device according to at least one of the preceding claims, characterized in that The base surface seal and / or the receiving seal has at least one sealing means, preferably an O-ring, particularly preferably at least one O-ring.

6. Leakage test device according to at least one of the preceding claims, characterized in that The receptacle is embodied or designed as a hole starting from the base surface and extending within the cylindrical base body, wherein the hole ends in the base body, thereby forming at least one stop surface for the end of the shaft in the cylindrical base body.

7. Leakage test device according to at least one of the preceding claims, characterized in that The receptacle rotational axis of the receptacle extends coaxially to the rotational axis of the cylindrical main body.

8. Leakage test device according to at least one of the preceding claims, characterized in that At least one delivery opening has a hole which is arranged on the upper side and / or the outer circumferential surface of the base body.

9. Leakage test device according to at least one of the preceding claims, characterized in that The discharge means has a plurality of outlets or openings at least on the base surface, through which liquid can flow out of the leakage detection device, and the plurality of outlets are arranged staggered or spaced apart from each other in the circumferential direction on the base surface, for example, at the same interval or evenly.

10. The leakage inspection device according to claim 9, characterized in that The outlet has a rectangular (outlet) shape on the base surface and its radially inner end extends up to the receptacle, so that the radially inner end of the outlet forms an opening at the receptacle or at a surface of the receptacle.

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